CN105443385A - Two-stage enthalpy-increase compressor and air conditioner - Google Patents
Two-stage enthalpy-increase compressor and air conditioner Download PDFInfo
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Abstract
本发明提供一种双级增焓压缩机，包括上气缸、下气缸和下法兰，上气缸、下气缸和下法兰从上往下依次设置，上气缸与下气缸之间设置中隔板；下气缸作为第一级压缩缸，上气缸作为第二级压缩缸；下气缸设置下气缸吸气口和下气缸增焓口；下法兰设置有中间腔，中间腔包括第一空腔和第二空腔，第一空腔的壁上设置第一增焓口，第一增焓口与下气缸增焓口相连通；第一空腔和第二空腔之间设置第二增焓口，第二增焓口处设置有止回阀装置，止回阀装置用于冷媒在第一空腔和第二空腔之间的单向流通。还涉及一种空调器。本发明的双级增焓压缩机及空调器，提高了在关增焓时高压级吸气压力，降低了功耗，提高了压缩机的性能。
The invention provides a two-stage enthalpy-increasing compressor, which includes an upper cylinder, a lower cylinder and a lower flange, the upper cylinder, the lower cylinder and the lower flange are arranged sequentially from top to bottom, and a middle partition is arranged between the upper cylinder and the lower cylinder ; The lower cylinder is used as the first-stage compression cylinder, and the upper cylinder is used as the second-stage compression cylinder; the lower cylinder is provided with the suction port of the lower cylinder and the enthalpy-increasing port of the lower cylinder; the lower flange is provided with an intermediate cavity, which includes the first cavity and In the second cavity, a first enthalpy-increasing port is provided on the wall of the first cavity, and the first enthalpy-increasing port communicates with the enthalpy-increasing port of the lower cylinder; a second enthalpy-increasing port is provided between the first cavity and the second cavity A check valve device is provided at the second enthalpy increasing port, and the check valve device is used for one-way flow of refrigerant between the first cavity and the second cavity. It also relates to an air conditioner. The double-stage enthalpy-increasing compressor and the air conditioner of the present invention increase the suction pressure of the high-pressure stage when the enthalpy increasing is turned off, reduce power consumption, and improve the performance of the compressor.
Description
技术领域technical field
本发明涉及制冷领域，尤其涉及一种变中间腔容积双级增焓压缩机及空调器。The invention relates to the refrigeration field, in particular to a two-stage enthalpy-increasing compressor with variable intermediate cavity volume and an air conditioner.
背景技术Background technique
应用滚动活塞式压缩机原理实现的双缸单级压缩技术已较成熟，且在当今高效、节能、环保的可持续发展主题下，双级增焓压缩技术已应用于热泵产品，但该项技术目前存在关增焓工况下因下法兰中间腔容积过大导致的功率高、性能低的问题。The double-cylinder single-stage compression technology realized by applying the principle of rolling piston compressor is relatively mature, and under the sustainable development theme of high efficiency, energy saving and environmental protection, the double-stage enthalpy-increasing compression technology has been applied to heat pump products, but this technology At present, there are problems of high power and low performance due to the large volume of the lower flange intermediate cavity under the condition of increasing enthalpy.
发明内容Contents of the invention
鉴于现有技术的现状，本发明的目的在于提供一种双级增焓压缩机及空调器，其提高关增焓时高压级吸气压力，降低功耗，提高压缩机性能。解决了关增焓时因中间腔容积过大导致的功率高、性能低的问题。为实现上述目的，本发明的技术方案如下：In view of the status quo of the prior art, the object of the present invention is to provide a two-stage enthalpy increasing compressor and an air conditioner, which can increase the suction pressure of the high pressure stage when the enthalpy increasing is turned off, reduce power consumption, and improve compressor performance. Solve the problem of high power and low performance caused by the excessive volume of the intermediate cavity when the enthalpy is turned off. To achieve the above object, the technical scheme of the present invention is as follows:
一种双级增焓压缩机，包括上气缸、下气缸和下法兰，所述上气缸、所述下气缸和所述下法兰从上往下依次设置，所述上气缸与所述下气缸之间设置中隔板；所述下气缸作为第一级压缩缸，所述上气缸作为第二级压缩缸；A two-stage enthalpy-increasing compressor, comprising an upper cylinder, a lower cylinder and a lower flange, the upper cylinder, the lower cylinder and the lower flange are arranged sequentially from top to bottom, the upper cylinder and the lower A middle partition is arranged between the cylinders; the lower cylinder is used as the first-stage compression cylinder, and the upper cylinder is used as the second-stage compression cylinder;
所述下气缸设置下气缸吸气口和下气缸增焓口；The lower cylinder is provided with a lower cylinder suction port and a lower cylinder enthalpy-increasing port;
所述下法兰设置有中间腔，所述中间腔包括第一空腔和第二空腔，所述第一空腔的壁上设置第一增焓口，所述第一增焓口与所述下气缸增焓口相连通；The lower flange is provided with an intermediate cavity, the intermediate cavity includes a first cavity and a second cavity, a first enthalpy increasing port is provided on the wall of the first cavity, and the first enthalpy increasing port is connected with the enthalpy increasing port The enthalpy-increasing port of the lower cylinder is connected;
所述第一空腔和所述第二空腔之间设置第二增焓口，所述第二增焓口处设置有止回阀装置，所述止回阀装置用于冷媒在第一空腔和第二空腔之间的单向流通。A second enthalpy-increasing port is provided between the first cavity and the second cavity, and a check valve device is provided at the second enthalpy-increasing port. One-way communication between the cavity and the second cavity.
在其中一个实施例中，所述止回阀装置包括增焓阀片和增焓密封圈，所述增焓阀片和增焓密封圈依次装配在所述第二增焓口内。In one of the embodiments, the check valve device includes an enthalpy-increasing valve plate and an enthalpy-increasing sealing ring, and the enthalpy-increasing valve plate and the enthalpy-increasing sealing ring are sequentially assembled in the second enthalpy increasing port.
在其中一个实施例中，所述增焓阀片为板式弹性阀片，所述增焓阀片上开设有螺旋形孔；In one of the embodiments, the enthalpy-increasing valve plate is a plate-type elastic valve plate, and a spiral hole is opened on the enthalpy-increasing valve plate;
所述增焓密封圈与所述第二增焓口的配合方式为过盈配合。The cooperation mode between the enthalpy-increasing sealing ring and the second enthalpy-increasing port is an interference fit.
在其中一个实施例中，所述第二增焓口为阶梯孔，所述阶梯孔的第一段孔的直径小于所述阶梯孔的第二段孔的直径；In one of the embodiments, the second enthalpy increasing port is a stepped hole, and the diameter of the first section of the stepped hole is smaller than the diameter of the second section of the stepped hole;
所述增焓阀片和所述增焓密封圈依次装配在所述阶梯孔的第二段孔内，所述阶梯孔的第一段孔的直径为d1，所述增焓阀片的内圈直径为D1，所述增焓密封圈的内径为d2，其中，d1＜D1＜d2。The enthalpy-increasing valve plate and the enthalpy-increasing sealing ring are sequentially assembled in the second section of the stepped hole, the diameter of the first section of the stepped hole is d1, and the inner ring of the enthalpy-increasing valve plate The diameter is D1, and the inner diameter of the enthalpy increasing sealing ring is d2, wherein, d1<D1<d2.
在其中一个实施例中，所述第一空腔的容积为V1，所述第二空腔的容积为V2，其中，0.5≤V1/V2≤1。In one embodiment, the volume of the first cavity is V1, and the volume of the second cavity is V2, wherein 0.5≦V1/V2≦1.
在其中一个实施例中，所述第二增焓口为阶梯孔，所述阶梯孔的第一段孔的直径小于所述阶梯孔的第二段孔的直径；In one of the embodiments, the second enthalpy increasing port is a stepped hole, and the diameter of the first section of the stepped hole is smaller than the diameter of the second section of the stepped hole;
所述第一增焓口的截面积为S1，所述阶梯孔的第一段孔的截面积为S2，其中，S2/S1≥1.2。The cross-sectional area of the first enthalpy-increasing port is S1, and the cross-sectional area of the first section of the stepped hole is S2, wherein S2/S1≥1.2.
在其中一个实施例中，所述下法兰还设置有用于连通所述下气缸的排气口，所述排气口连通所述第二空腔，所述排气口处设置排气阀门组件，使得所述下气缸的排气经所述排气口进入所述第二空腔。In one of the embodiments, the lower flange is also provided with an exhaust port for communicating with the lower cylinder, the exhaust port communicates with the second cavity, and an exhaust valve assembly is arranged at the exhaust port , so that the exhaust gas of the lower cylinder enters the second cavity through the exhaust port.
在其中一个实施例中，所述下法兰上还设置用于连通第二空腔的第一流道，所述下气缸上设置第二流道；所述中隔板上设置第三流道，所述第一流道、第二流道和第三流道连通，用于连通上气缸的吸气端。In one of the embodiments, the lower flange is further provided with a first flow channel for communicating with the second cavity, the lower cylinder is provided with a second flow channel; the intermediate partition is provided with a third flow channel, The first flow passage, the second flow passage and the third flow passage communicate with each other and are used to communicate with the suction end of the upper cylinder.
还涉及一种空调器，包括压缩机，所述压缩机为上述任一技术方案的双级增焓压缩机。It also relates to an air conditioner, including a compressor, and the compressor is the two-stage enthalpy-increasing compressor of any one of the above technical solutions.
本发明的有益效果是：The beneficial effects of the present invention are:
本发明的双级增焓压缩机及空调器，在第一空腔与第二空腔之间设置止回阀装置，关增焓时，中间腔由第二空腔构成；开增焓时，中间腔由第一空腔和第二空腔组成；该止回阀装置实现了开关增焓时中间腔容积大小的切换，从而实现了开关增焓时中间腔容积的变化。解决了关增焓时因中间腔容积过大导致的功率高、性能低的问题。其提高关增焓时高压级吸气压力，降低功耗，提高压缩机性能。增焓阀片组件结构简单，加工和安装方便。In the two-stage enthalpy-increasing compressor and air conditioner of the present invention, a check valve device is arranged between the first cavity and the second cavity. When the enthalpy increase is turned off, the middle cavity is formed by the second cavity; The intermediate cavity is composed of a first cavity and a second cavity; the check valve device realizes the switching of the volume of the intermediate cavity when the enthalpy is increased by the switch, thereby realizing the change of the volume of the intermediate cavity when the enthalpy is increased by the switch. It solves the problem of high power and low performance caused by the excessive volume of the intermediate cavity when the enthalpy is turned off. It improves the suction pressure of the high-pressure stage when the enthalpy is increased, reduces power consumption, and improves the performance of the compressor. The enthalpy-increasing valve assembly has a simple structure and is convenient to process and install.
附图说明Description of drawings
图1为本发明的双级增焓压缩机一实施例的结构示意图；Fig. 1 is the structural representation of an embodiment of the two-stage enthalpy increasing compressor of the present invention;
图2为图1所示下法兰的结构示意图；Fig. 2 is a structural schematic diagram of the lower flange shown in Fig. 1;
图3为图1所示下法兰的分解示意图；Fig. 3 is an exploded schematic view of the lower flange shown in Fig. 1;
图4为图3所示增焓密封圈的结构剖视示意图；Fig. 4 is a schematic cross-sectional view of the structure of the enthalpy-increasing sealing ring shown in Fig. 3;
图5为图3所示增焓阀片的结构剖视示意图。Fig. 5 is a schematic cross-sectional view of the structure of the enthalpy increasing valve plate shown in Fig. 3 .
具体实施方式detailed description
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例对本发明的双级增焓压缩机及空调器进行进一步详细说明。应当理解，此处所描述的具体实施例仅用于解释本发明，并不用于限定本发明。In order to make the purpose, technical solution and advantages of the present invention clearer, the two-stage enthalpy-increasing compressor and air conditioner of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
参照图1至图5，本发明的双级增焓压缩机一实施例包括上气缸9、下气缸2和下法兰3，上气缸9、下气缸2和下法兰3从上往下依次设置，上气缸9与下气缸2之间设置中隔板8；下气缸2作为第一级压缩缸，上气缸9作为第二级压缩缸；下气缸2设置下气缸吸气口和下气缸增焓口。下法兰3设置有中间腔，中间腔包括第一空腔31和第二空腔33，第一空腔31的壁上设置第一增焓口32，第一增焓口32与下气缸增焓口相连通；Referring to Fig. 1 to Fig. 5, an embodiment of the two-stage enthalpy increasing compressor of the present invention includes an upper cylinder 9, a lower cylinder 2 and a lower flange 3, and the upper cylinder 9, the lower cylinder 2 and the lower flange 3 are sequentially from top to bottom Setting, middle partition 8 is set between the upper cylinder 9 and the lower cylinder 2; the lower cylinder 2 is used as the first-stage compression cylinder, and the upper cylinder 9 is used as the second-stage compression cylinder; Enthalpy mouth. The lower flange 3 is provided with an intermediate chamber, the intermediate chamber includes a first cavity 31 and a second cavity 33, and a first enthalpy increasing port 32 is arranged on the wall of the first cavity 31, and the first enthalpy increasing port 32 is connected with the lower cylinder increasing port. Enthalpy port connected;
双级增焓压缩机还包括电机转子组件13、电机定子组件14、分液器部件1、增焓组件7；分液器部件1通过焊接固定在壳体组件6上，下气缸2(低压缸)由螺钉固定在下法兰3上，下法兰3与下法兰盖板4相连，分液器部件1通过吸气管与下气缸吸气口相通，增焓组件7与下法兰3的第一空腔31相通，增焓组件7与下气缸增焓口的配合方式为过盈配合，上气缸9(高压缸)通过螺钉与上法兰组件10和上消音器11固定连接，上气缸9还与中隔板8相连，上气缸9焊接在壳体组件6上，曲轴12穿过下法兰3、下气缸2、下滚动转子、下法兰盖板4、中隔板8、上气缸9、上滚动转子、上法兰组件10和上消音器11，排气管16焊接在上盖组件15上，上盖组件15焊接在壳体组件6上。The two-stage enthalpy increasing compressor also includes a motor rotor assembly 13, a motor stator assembly 14, a liquid separator part 1, and an enthalpy increasing assembly 7; the liquid separator part 1 is fixed on the shell assembly 6 by welding, and the lower cylinder 2 (low pressure cylinder ) is fixed on the lower flange 3 by screws, the lower flange 3 is connected with the lower flange cover plate 4, the liquid separator part 1 communicates with the suction port of the lower cylinder through the suction pipe, and the enthalpy increasing component 7 is connected with the lower flange 3 The first cavity 31 communicates, and the enthalpy-increasing component 7 and the enthalpy-increasing port of the lower cylinder are fitted in an interference fit, and the upper cylinder 9 (high-pressure cylinder) is fixedly connected with the upper flange component 10 and the upper muffler 11 by screws, and the upper cylinder 9 is also connected with the intermediate partition 8, the upper cylinder 9 is welded on the shell assembly 6, and the crankshaft 12 passes through the lower flange 3, the lower cylinder 2, the lower rolling rotor, the lower flange cover plate 4, the intermediate partition 8, the upper The cylinder 9 , the upper rolling rotor, the upper flange assembly 10 and the upper muffler 11 , the exhaust pipe 16 are welded on the upper cover assembly 15 , and the upper cover assembly 15 is welded on the shell assembly 6 .
下法兰3还设置有用于连通下气缸2的排气口35，排气口35连通第二空腔33，排气口35处设置排气阀门组件37，使得下气缸2的排气经排气口35进入第二空腔33。下法兰3上还设置有用于连通第二空腔33的第一流道36，下气缸2上设置第二流道，中隔板8上设置第三流道，第一流道36、第二流道和第三流道连通，用于连通上气缸9的吸气端。The lower flange 3 is also provided with an exhaust port 35 for communicating with the lower cylinder 2, the exhaust port 35 communicates with the second cavity 33, and an exhaust valve assembly 37 is arranged at the exhaust port 35, so that the exhaust of the lower cylinder 2 is exhausted The air port 35 enters the second cavity 33 . The lower flange 3 is also provided with a first flow channel 36 for communicating with the second cavity 33, the lower cylinder 2 is provided with a second flow channel, and the middle partition 8 is provided with a third flow channel. The first flow channel 36, the second flow channel The passage communicates with the third flow passage for communicating with the suction end of the upper cylinder 9 .
第一空腔31和第二空腔33之间设置第二增焓口34，第二增焓口34处设置有止回阀装置，止回阀装置用于冷媒在第一空腔31和第二空腔33之间的单向流通。A second enthalpy-increasing port 34 is provided between the first cavity 31 and the second cavity 33, and a check valve device is provided at the second enthalpy-increasing port 34. The check valve device is used for refrigerant to flow between the first cavity 31 and the second cavity. One-way communication between the two cavities 33 .
止回阀装置包括增焓阀片38和增焓密封圈39，增焓阀片38和增焓密封圈39依次装配在第二增焓口34内。增焓密封圈39与第二增焓口34的配合方式为过盈配合，增焓阀片38置于增焓密封圈39的增焓阀片固定端3901一侧，从而实现固定增焓阀片38。The check valve device includes an enthalpy increasing valve plate 38 and an enthalpy increasing sealing ring 39 , and the enthalpy increasing valve plate 38 and the enthalpy increasing sealing ring 39 are sequentially assembled in the second enthalpy increasing port 34 . The cooperation between the enthalpy increasing sealing ring 39 and the second enthalpy increasing port 34 is an interference fit, and the enthalpy increasing valve plate 38 is placed on the side of the fixed end 3901 of the enthalpy increasing valve plate of the enthalpy increasing sealing ring 39, thereby realizing the fixed enthalpy increasing valve plate 38.
作为一种可实施方式，增焓阀片38为板式弹性阀片，增焓阀片38的本体3801上开设有螺旋形孔3802。优选地，第二增焓口34为阶梯孔，所述阶梯孔分为两段，其中，所述阶梯孔的第一段孔(小孔)的直径小于所述阶梯孔的第二段孔(大孔)的直径；增焓阀片38和增焓密封圈39依次装配在所述阶梯孔的第二段孔(大孔)内，所述阶梯孔的第一段孔(小孔)的直径为d1，增焓阀片38的内圈直径为D1，增焓密封圈39的内径为d2，其中，d1＜D1＜d2。As a possible implementation manner, the enthalpy-increasing valve plate 38 is a plate-type elastic valve plate, and the body 3801 of the enthalpy-increasing valve plate 38 is provided with a spiral hole 3802 . Preferably, the second enthalpy-increasing port 34 is a stepped hole, and the stepped hole is divided into two sections, wherein the diameter of the first section of the stepped hole (small hole) is smaller than the diameter of the second section of the stepped hole ( The diameter of the enthalpy-increasing valve plate 38 and the enthalpy-increasing sealing ring 39 are sequentially assembled in the second section of the hole (large hole) of the stepped hole, and the diameter of the first section of the hole (small hole) of the stepped hole is d1, the inner diameter of the enthalpy-increasing valve plate 38 is D1, and the inner diameter of the enthalpy-increasing sealing ring 39 is d2, wherein, d1<D1<d2.
作为一种可实施方式，第一增焓口32的截面积(径向截面积)为S1，所述阶梯孔的第一段孔(小孔)的截面积(径向截面积)为S2，亦即第二增焓口34的小孔截面积为S2；其中，S2/S1≥1.2。As a possible implementation mode, the cross-sectional area (radial cross-sectional area) of the first enthalpy-increasing port 32 is S1, and the cross-sectional area (radial cross-sectional area) of the first stage hole (small hole) of the stepped hole is S2, That is, the small hole cross-sectional area of the second enthalpy increasing port 34 is S2; wherein, S2/S1≥1.2.
作为一种可实施方式，第一空腔31的容积为V1，第二空腔33的容积为V2，其中，0.5≤V1/V2≤1。As a possible implementation manner, the volume of the first cavity 31 is V1, and the volume of the second cavity 33 is V2, wherein 0.5≦V1/V2≦1.
制冷剂流通过程简述：Brief description of refrigerant circulation process:
(1)在关增焓时，在电机(转子组件13、定子组件14)的转动下，压缩机运转，系统制冷剂通过分液器部件1进入到下气缸2(低压缸)中进行压缩，下法兰3的排气阀片组件37在压差作用下打开，中压制冷剂进入下法兰3的第二空腔33中，此时增焓阀片38关闭，从而第一空腔31与第二空腔33不连通，中压制冷剂依次通过下法兰3上的第一流道36、下气缸2上的第二流道、中隔板8上的第三流道进入上气缸9中进行二次压缩而被压缩成高压制冷剂，再经上法兰组件10排出至由壳体组件6、上盖组件15、下盖5构成空间内，并从排气管16排到系统(蒸发器或冷凝器)，即完成一次双级关增焓压缩。(1) When the enthalpy is turned off, the compressor runs under the rotation of the motor (rotor assembly 13, stator assembly 14), and the system refrigerant enters the lower cylinder 2 (low pressure cylinder) through the liquid separator part 1 for compression, The exhaust valve plate assembly 37 of the lower flange 3 is opened under the action of the pressure difference, and the medium-pressure refrigerant enters the second cavity 33 of the lower flange 3, at this time, the enthalpy increasing valve plate 38 is closed, so that the first cavity 31 It does not communicate with the second cavity 33, and the medium-pressure refrigerant enters the upper cylinder 9 through the first flow channel 36 on the lower flange 3, the second flow channel on the lower cylinder 2, and the third flow channel on the middle partition 8. It is compressed into a high-pressure refrigerant through secondary compression, and then discharged into the space formed by the shell assembly 6, the upper cover assembly 15, and the lower cover 5 through the upper flange assembly 10, and discharged from the exhaust pipe 16 to the system ( evaporator or condenser), that is, to complete a two-stage closed enthalpy increase compression.
(2)在开增焓时，在电机(转子组件13、定子组件14)的转动下，压缩机运转，从系统回来的制冷剂分为两部分，一部分通过分液器部件1进入到下气缸2(低压缸)中进行一级压缩，下法兰3的排气阀片组件37在压差下作用下打开，下气缸压缩后的中压制冷剂排到下法兰3的第二空腔33中；另一部分制冷剂从增焓组件7经下气缸增焓口和下法兰3的第一增焓口32进入第一空腔31中，此时下法兰3的增焓阀片38在压差作用下打开，下法兰3的第一空腔31与第二空腔33连通，增焓制冷剂进入下法兰3的第二空腔33中与下气缸2压缩后排入的制冷剂相混合，形成的混合制冷剂流体，依次通过下法兰3上的第一流道36、下气缸2上的第二流道和中隔板8上的第三道进入上气缸9中进行二次压缩，经二次压缩后成高压制冷剂流体，再经上法兰组件10排出至由壳体组件6、上盖组件15、下盖5构成空间内，并从排气管16排到系统(蒸发器或冷凝器)，即完成一次双级增焓压缩。(2) When the enthalpy is increased, the compressor runs under the rotation of the motor (rotor assembly 13, stator assembly 14), and the refrigerant returned from the system is divided into two parts, and one part enters the lower cylinder through the liquid separator part 1 2 (low-pressure cylinder) performs one-stage compression, the exhaust valve assembly 37 of the lower flange 3 is opened under the action of the pressure difference, and the medium-pressure refrigerant compressed by the lower cylinder is discharged to the second cavity of the lower flange 3 33; another part of the refrigerant enters the first cavity 31 from the enthalpy-increasing component 7 through the enthalpy-increasing port of the lower cylinder and the first enthalpy-increasing port 32 of the lower flange 3, and at this time, the enthalpy-increasing valve plate 38 of the lower flange 3 is Open under the action of the pressure difference, the first cavity 31 of the lower flange 3 communicates with the second cavity 33, and the enthalpy-increasing refrigerant enters the second cavity 33 of the lower flange 3 and is compressed by the lower cylinder 2 and discharged into the refrigerant The mixed refrigerant fluid formed will enter the upper cylinder 9 through the first flow channel 36 on the lower flange 3, the second flow channel on the lower cylinder 2, and the third channel on the middle partition 8 in turn, and then enter the upper cylinder 9 for two cycles. After the second compression, it becomes a high-pressure refrigerant fluid, and then it is discharged into the space formed by the shell assembly 6, the upper cover assembly 15, and the lower cover 5 through the upper flange assembly 10, and is discharged from the exhaust pipe 16 to the system. (evaporator or condenser), that is, to complete a two-stage enthalpy-increasing compression.
本发明还涉及一种空调器，包括上述任一技术方案的双级增焓压缩机，由于空调器除双级增焓压缩机外均为现有技术，此处不再一一赘述。The present invention also relates to an air conditioner, including the two-stage enthalpy-increasing compressor of any of the above-mentioned technical solutions. Since the air-conditioner is in the prior art except for the two-stage enthalpy-increasing compressor, details will not be repeated here.
以上实施例的双级增焓压缩机及空调器，在第一空腔31与第二空腔33之间设置止回阀装置，关增焓时，中间腔由第二空腔33构成；开增焓时，中间腔由第一空腔31和第二空腔33组成；该止回阀装置实现了开关增焓时中间腔容积大小的切换，从而实现了开关增焓时中间腔容积的变化。解决了关增焓时因中间腔容积过大导致的功率高、性能低的问题。其提高关增焓时高压级吸气压力，降低功耗，提高压缩机性能。增焓阀片组件结构简单，加工和安装方便。The two-stage enthalpy-increasing compressor and the air conditioner of the above embodiments are provided with a check valve device between the first cavity 31 and the second cavity 33. When the enthalpy increase is turned off, the middle cavity is formed by the second cavity 33; When the enthalpy is increased, the intermediate cavity is composed of the first cavity 31 and the second cavity 33; the check valve device realizes the switching of the volume of the intermediate cavity when the switch increases the enthalpy, thereby realizing the change of the volume of the intermediate cavity when the switch increases the enthalpy . Solve the problem of high power and low performance caused by the excessive volume of the intermediate cavity when the enthalpy is turned off. It improves the suction pressure of the high-pressure stage when the enthalpy is increased, reduces power consumption, and improves the performance of the compressor. The enthalpy-increasing valve plate assembly has a simple structure and is convenient to process and install.
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.
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