Compressor and air conditioner

Abstract

The present invention discloses a compressor and an air conditioner. The compressor includes a compressor housing, and a sliding valve cavity is formed in the compressor housing; and a sliding valve assembly, which is arranged in the sliding valve cavity. The sliding valve assembly includes a first sliding valve and a second sliding valve. The first sliding valve is arranged at one end of the sliding valve assembly, and the second sliding valve is arranged at the other end of the sliding valve assembly. The first sliding valve and the second sliding valve can move relative to the sliding valve cavity so that the sliding valve assembly includes a first working state and a second working state; when the sliding valve assembly is in the first working state, the first sliding valve and the second sliding valve are attached and move synchronously; when the sliding valve assembly is in the second working state, the first sliding valve and the second sliding valve are separated and move relative to each other, and a through hole communicating with the cavity for installing the rotor is formed between the first sliding valve and the second sliding valve.

Description

Technical Field

[0001] The present invention relates to the technical field of compression equipment, and particularly to a compressor and an air conditioner. Background Art

[0002] Compressors are usually used in medium and large-sized refrigeration systems. Such systems require wide-range load regulation. The unit load can be adjusted by adjusting the flow rate of the compressor. Usually, a slide valve mechanism is used to change the volume value at the end of suction to achieve the change of the suction flow rate. The compressor has an internal compression process. The ratio of the volume value at the end of suction to the volume value at the end of exhaust is defined as the internal volume ratio VI. This value directly determines the pressure ratio PR (the ratio of the discharge pressure to the suction pressure) of the compressor, and there is a direct proportional relationship between the two. When the internal volume ratio increases, the pressure ratio rises.

[0003] When a traditional compressor is in use, when the internal pressure ratio of the compressor does not match the external pressure ratio determined by the external environmental temperature, the compressor cannot adaptively adjust, resulting in a reduction in the efficiency of the compressor and affecting the use of the compressor. Summary of the Invention

[0004] Based on this, in view of the problem that when a traditional compressor is in use, when the internal pressure ratio of the compressor does not match the external pressure ratio determined by the external environmental temperature, the compressor cannot adaptively adjust, resulting in a reduction in the efficiency of the compressor and affecting the use of the compressor, a compressor and an air conditioner are proposed. The compressor can adaptively adjust the pressure ratio and flow rate according to the working conditions, improving the operating efficiency of the compressor; the air conditioner includes the above compressor, so the air conditioner has a high heat exchange efficiency when facing different working conditions.

[0005] The specific technical solutions are as follows:

[0006] On the one hand, the present application relates to a compressor, including: a compressor housing, the compressor housing is provided with a slide valve chamber; and a slide valve assembly, the slide valve assembly is arranged in the slide valve chamber, the slide valve assembly includes a first slide valve and a second slide valve, the first slide valve is arranged at one end of the slide valve assembly, the second slide valve is arranged at the other end of the slide valve assembly, and the first slide valve and the second slide valve can move relative to the slide valve chamber so that the slide valve assembly includes a first working state and a second working state; when the slide valve assembly is in the first working state, the first slide valve and the second slide valve are in contact and move synchronously; when the slide valve assembly is in the second working state, the first slide valve and the second slide valve are separated and move relative to each other, and the first slide valve and the second slide valve form a through hole communicating with the cavity for installing the rotor.

[0007] When the above compressor is in use, when the sliding valve assembly is in the first working state, the first sliding valve and the second sliding valve are in contact and move synchronously. At this time, the compressor is in a full-load state. By adjusting the compression ratio of the compressor through the synchronous movement of the first sliding valve and the second sliding valve, when the compressor faces different working conditions, it can adaptively adjust the compression ratio of the compressor and improve the operating efficiency of the compressor; when the sliding valve assembly is in the second working state, the first sliding valve and the second sliding valve are separated, and a through hole is formed by an interval between the first sliding valve and the second sliding valve. This through hole is communicated with the cavity for installing the rotor, so that the flow rate of the compressor is reduced and the load of the compressor is reduced. Since the first sliding valve and the second sliding valve move relative to each other, the size of the through hole becomes larger or smaller, and thus the flow rate and load of the compressor can be adjusted; in this way, the compressor of the present application can adjust the compression ratio of the compressor when the compressor is in a full-load state, and at the same time can also adjust the flow rate of the compressor, so that the compressor can maintain a high operating efficiency when facing different working conditions.

[0008] The technical solution will be further described below:

[0009] In one embodiment, the sliding valve assembly further includes an elastic reset member. One end of the elastic reset member is connected to one end of the first sliding valve, and the other end of the elastic reset member is connected to one end of the second sliding valve. When the sliding valve assembly is in the first working state, the first sliding valve and the second sliding valve are stressed and squeeze the elastic reset member to make the first sliding valve and the second sliding valve in contact and move synchronously; when the sliding valve assembly is in the second working state, the elastic reset member pushes the first sliding valve and / or the second sliding valve to separate and move relatively the first sliding valve and the second sliding valve.

[0010] In one embodiment, the other end of the first sliding valve and the inner wall of the sliding valve cavity enclose a first cavity, and the other end of the second sliding valve and the inner wall of the sliding valve cavity enclose a second cavity. A first supply channel for supplying a first pressure driving liquid into the first cavity is provided on the side wall of the first cavity, and a second supply channel for supplying a second pressure driving liquid into the second cavity is provided on the side wall of the second cavity.

[0011] In one embodiment, the compressor further includes a first valve body and a second valve body. The first valve body is used to control the opening and closing of the first supply channel, and the second valve body is used to control the opening and closing of the second supply channel.

[0012] In one embodiment, a first unloading channel for unloading the first pressure driving liquid is further provided on the side wall of the first cavity, and a second unloading channel for unloading the second pressure driving liquid is provided on the side wall of the second cavity.

[0013] In one embodiment, the number of the first unloading channels is at least two, and the first unloading channels are arranged at intervals along the moving direction of the first slide valve.

[0014] In one embodiment, the compressor further includes a third valve body and a fourth valve body. The third valve body is used to control the opening and closing of the first unloading channel, and the fourth valve body is used to control the opening and closing of the second unloading channel.

[0015] In one embodiment, the number of the second unloading channels is at least two, and the second unloading channels are arranged at intervals along the moving direction of the second slide valve.

[0016] In one embodiment, the volume of the first cavity and / or the second cavity is adjustable.

[0017] In one embodiment, the compressor housing includes a housing body, a first cover body and a second cover body. The housing body is provided with an installation cavity, a first opening and a second opening communicated with the installation cavity. The first cover body is telescopically arranged at the first opening, and the first cover body, the first slide valve and the inner wall of the installation cavity enclose the first cavity. The second cover body is telescopically arranged at the second opening, and the second cover body, the second slide valve and the inner wall of the installation cavity enclose the second cavity.

[0018] In one embodiment, a first internal thread structure is provided on the inner wall of the first opening, and the first cover body is in threaded connection with the first internal thread structure; and / or a second internal thread structure is provided on the inner wall of the second opening, and the second cover body is in threaded connection with the second internal thread structure.

[0019] On the other hand, the present application also relates to an air conditioner including the compressor in any of the above embodiments.

[0020] When the above air conditioner is in use, when the slide valve assembly is in the first working state, the first slide valve and the second slide valve are attached and move synchronously. At this time, the compressor is in a full load state. By synchronously moving the first slide valve and the second slide valve, the compression ratio of the compressor is adjusted, so that when the compressor faces different working conditions, it can adaptively adjust the compression ratio of the compressor and improve the operating efficiency of the compressor; when the slide valve assembly is in the second working state, the first slide valve and the second slide valve are separated, and a through hole is formed by arranging a gap between the first slide valve and the second slide valve. This through hole communicates with the cavity for installing the rotor, the flow rate of the compressor decreases and thus the load of the compressor decreases. Since the first slide valve and the second slide valve move relative to each other, the size of the through hole becomes larger or smaller, and thus the flow rate and load of the compressor can be adjusted; in this way, the compressor of the present application can adjust the compression ratio of the compressor when the compressor is in a full load state, and at the same time can also adjust the flow rate of the compressor, so that the compressor can maintain a high operating efficiency when facing different working conditions. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a compressor in an embodiment;

[0022] Figure 2 It is a schematic structural diagram of a compressor in another embodiment;

[0023] Figure 3 It is a schematic structural diagram of a compressor in another embodiment.

[0024] Description of the Reference Numerals:

[0025] 10. Compressor; 100. Compressor housing; 110. First cavity; 112. First supply channel; 114. First unloading channel; 120. Second cavity; 122. Second supply channel; 124. Second unloading channel; 130. First cover; 140. Second cover; 150. Housing body; 160. Through hole; 210. First slide valve; 220. Second slide valve; 230. Elastic reset member; 310. First valve body; 320. Second valve body; 330. Third valve body; 340. Fourth valve body; 410. High-pressure oil device; 420. Low-pressure unloading device. Detailed Description of the Embodiment

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

[0027] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is referred to as being "fixedly disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0028] It is necessary to point out that when an element is referred to as being "fixedly disposed on" another element, the two elements can be integral or there can be a detachable connection between the two elements.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used herein in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] In addition, it should also be understood that in this embodiment, the positional relationships indicated by terms such as "lower", "upper", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "one side", "the other side", "one end", "the other end", etc. are based on the positional relationships shown in the drawings; terms such as "first", "second", etc. are used to distinguish different structural components. These terms are only for the convenience of describing the present invention and simplifying the description and should not be construed as limiting the present invention.

[0031] As Figures 1 to 3 shown, a compressor 10 in an embodiment includes: a compressor housing 100 and a slide valve assembly. The compressor housing 100 is provided with a slide valve cavity; the slide valve assembly is disposed in the slide valve cavity. The slide valve assembly includes a first slide valve 210 and a second slide valve 220. The first slide valve 210 is disposed at one end of the slide valve assembly, and the second slide valve 220 is disposed at the other end of the slide valve assembly. The first slide valve 210 and the second slide valve 220 can move relative to the slide valve cavity so that the slide valve assembly includes a first working state and a second working state; when the slide valve assembly is in the first working state, the first slide valve 210 and the second slide valve 220 are in contact and move synchronously; when the slide valve assembly is in the second working state, the first slide valve 210 and the second slide valve 220 are separated and move relative to each other, and the first slide valve 210 and the second slide valve 220 form a through hole 160 communicating with the cavity for installing the rotor.

[0032] When the above-mentioned compressor 10 is in use, when the slide valve assembly is in the first working state, the first slide valve 210 and the second slide valve 220 are in contact and move synchronously. No bypass orifice appears inside the compressor 10, and it always operates at the maximum flow rate. At this time, the compressor 10 is in a full-load state. By synchronously moving the first slide valve 210 and the second slide valve 220, the compression ratio of the compressor 10 is adjusted, so that when the compressor 10 faces different working conditions, it can adaptively adjust the compression ratio of the compressor 10 and improve the operating efficiency of the compressor 10. When the slide valve assembly is in the second working state, the first slide valve 210 and the second slide valve 220 are separated, and a through hole 160 is formed at an interval between the first slide valve 210 and the second slide valve 220. The through hole 160 communicates with the cavity for installing the rotor, reducing the flow rate of the compressor and thus reducing the load of the compressor 10. Since the first slide valve 210 and the second slide valve 220 move relative to each other, the size of the through hole 160 becomes larger or smaller, and thus the flow rate and load of the compressor can be adjusted, so that when the compressor faces different working conditions, it can maintain a high efficiency by adjusting the flow rate and load of the compressor. In this way, the compressor 10 of the present application can adjust the compression ratio of the compressor 10 when the compressor 10 is in a full-load state, and at the same time can also adjust the flow rate of the compressor 10, so that the compressor 10 can maintain a high operating efficiency when facing different working conditions.

[0033] As Figure 1As shown, on the basis of the above embodiments, the slide valve assembly further includes an elastic reset member 230. One end of the elastic reset member 230 is connected to one end of the first slide valve 210, and the other end of the elastic reset member 230 is connected to one end of the second slide valve 220. When the slide valve assembly is in the first working state, the first slide valve 210 and the second slide valve 220 are stressed and squeeze the elastic reset member 230 to make the first slide valve 210 and the second slide valve 220 fit together and move synchronously; when the slide valve assembly is in the second working state, the elastic reset member 230 pushes the first slide valve 210 and / or the second slide valve 220 to separate and move relatively the first slide valve 210 and the second slide valve 220. Thus, by applying pressure to the first slide valve 210 and applying pressure to the second slide valve 220, the first slide valve 210 and the second slide valve 220 move towards each other until they fit together. At this time, the compressor 10 is in a full load state; when the first slide valve 210 and the second slide valve 220 are stressed and move synchronously, the pressure ratio of the compressor can be adjusted, and then the pressure ratio of the compressor can be adjusted under the condition that the compressor 10 is in a full state; when the external force applied to the first slide valve 210 and / or the external force applied to the second slide valve 220 is less than the elastic force of the elastic reset member 230, at this time, under the action of the elastic reset member 230, the elastic reset member 230 pushes the first slide valve 210 and / or the second slide valve 220 to separate and move relatively. At this time, a through hole 160 is formed by an interval between the first slide valve 210 and the second slide valve 220, the compressor flow rate is reduced, and then the load of the compressor 10 is reduced. Since the first slide valve 210 and the second slide valve 220 move relatively, the size of the through hole 160 becomes larger or smaller, and then the compressor flow rate and load can be adjusted. Specifically, the elastic reset member 230 can be a spring or an elastic rubber strip, etc.

[0034] Specifically, the movement of the first slide valve 210 and the second slide valve 220 can be driven by a corresponding driving mechanism. Of course, it can also be driven by a pressure driving liquid, such as Figures 1 to 3As shown, in this embodiment, the other end of the first slide valve 210 and the inner wall of the slide valve cavity enclose to form a first cavity 110, and the other end of the second slide valve 220 and the inner wall of the slide valve cavity enclose to form a second cavity 120. A first supply channel 112 for delivering the first pressure driving liquid into the first cavity 110 is provided on the side wall of the first cavity 110. At this time, the first pressure driving liquid is delivered into the first cavity 110 through the first supply channel 112, and the first pressure driving liquid applies pressure to the first slide valve 210 to move the first slide valve 210. Similarly, a second supply channel 122 for delivering the second pressure driving liquid into the second cavity 120 is provided on the side wall of the second cavity 120. At this time, the second pressure driving liquid is delivered into the second cavity 120 through the second supply channel 122, and the second pressure driving liquid applies pressure to the second slide valve 220 to move the second slide valve 220. Specifically, the first pressure driving liquid and the second pressure driving liquid can be high-pressure oil. In other embodiments, elastic reset members 230 can be correspondingly arranged in the first cavity 110 or the second cavity 120, and the separation and fitting of the first slide valve 210 and the second slide valve 220 are realized by the cooperation of high-pressure oil and the elastic reset members.

[0035] As Figures 1 to 3 shown, on the basis of the above embodiment, the compressor 10 further includes a first valve body 310 and a second valve body 320. The first valve body 310 is used to control the opening and closing of the first supply channel 112, and the second valve body 320 is used to control the opening and closing of the second supply channel 122. Specifically, the first valve body 310 and the second valve body 320 can be solenoid valves; in this embodiment, the first valve body 310 is arranged on the first pipeline connecting the first supply channel 112 and the first liquid supply device, and the second valve body 320 is arranged on the second pipeline connecting the second supply channel 122 and the second liquid supply device. The first liquid supply device and the second liquid supply device can be the same or different.

[0036] As Figure 1As shown, specifically in this embodiment, a first unloading channel 114 for unloading the first pressure driving liquid is further provided on the side wall of the first cavity 110, and a second unloading channel 124 for unloading the second pressure driving liquid is provided on the side wall of the second cavity 120. Thus, the first pressure driving liquid in the first cavity 110 is unloaded through the first unloading channel 114, thereby reducing the pressure in the first cavity 110; similarly, the second pressure driving liquid in the second cavity 120 is unloaded through the second unloading channel 124, thereby reducing the pressure in the second cavity 120. On the basis of this embodiment, the compressor 10 further includes a third valve body 330 and a fourth valve body 340. The third valve body 330 is used to control the opening and closing of the first unloading channel 114, and the fourth valve body 340 is used to control the opening and closing of the second unloading channel 124. Specifically, the third valve body 330 and the fourth valve body 340 can be solenoid valves; in this embodiment, the third valve body 330 is disposed on a third pipeline connecting the first unloading channel 114 and the first unloading device, and the fourth valve body 340 is disposed on a fourth pipeline connecting the second unloading channel 124 and the second unloading device. The first unloading device and the second unloading device can be the same or different.

[0037] Specifically, the self-pressure of the first pressure driving liquid and the self-pressure of the second pressure driving liquid can be different. At this time, the first slide valve 210 is driven to move by the first pressure driving liquid, and the second slide valve 220 is driven to move by the second pressure driving liquid so that the first slide valve 210 and the second slide valve 220 are in contact. When the pressure received by the first slide valve 210 is different from the pressure received by the second slide valve 220, the first slide valve 210 and the second slide valve 220 move in different directions, thereby realizing the adjustment of the compression ratio of the compressor 10 under the full-load condition of the compressor 10.

[0038] Such as Figures 1 to 3As shown, of course, the self-pressure of the first pressure driving liquid and the self-pressure of the second pressure driving liquid can also be the same. At this time, the pressure exerted by the first pressure driving liquid in the first cavity 110 on the first slide valve 210 can be adjusted by opening and closing the first valve body 310 and the third valve body 330, and the pressure exerted by the second pressure driving liquid in the second cavity 120 on the second slide valve 220 can be adjusted by opening and closing the second valve body 320 and the fourth valve body 340; when the pressure exerted by the second pressure driving liquid in the second cavity 120 on the second slide valve 220 is greater than the pressure exerted by the first pressure driving liquid in the first cavity 110 on the first slide valve 210, the first slide valve 210 and the second slide valve 220 move to fit together and the first slide valve 210 and the second slide valve 220 move simultaneously in the direction of squeezing the first cavity 110. At this time, when the compressor 10 is in a full-load condition, the pressure ratio of the compressor 10 is increased; when the pressure exerted by the second pressure driving liquid in the second cavity 120 on the second slide valve 220 is less than the pressure exerted by the first pressure driving liquid in the first cavity 110 on the first slide valve 210, the first slide valve 210 and the second slide valve 220 move to fit together and the first slide valve 210 and the second slide valve 220 move simultaneously in the direction of squeezing the second cavity 120. At this time, when the compressor 10 is in a full-load condition, the pressure ratio of the compressor 10 can be decreased.

[0039] Further, when the first slide valve 210 and the second slide valve 220 are in contact and move simultaneously, the third valve body 330 is opened to unload the pressure in the first cavity 110. At this time, the first slide valve 210 and the second slide valve 220 can move synchronously to the outlet position of the first unloading channel 114. Thus, there is a pressure ratio for the compressor 10, that is, the corresponding pressure ratio of the compressor 10 can be indicated by fixedly setting the outlet position of the first unloading channel 114; further, in this embodiment, the number of the first unloading channels 114 is at least two, and the first unloading channels 114 are arranged at intervals along the moving direction of the first slide valve 210. According to the above description and reasoning, the inlet position of each first unloading channel 114 corresponds to a pressure ratio of the compressor 10. Therefore, by setting at least two first unloading channels 114, the pressure ratios of two compressors can be correspondingly indicated. At this time, the inlet position of the first unloading channel 114 indicates the position where the pressure ratio of the compressor 10 is larger, because in the direction of squeezing the first cavity 110, the pressure ratio of the compressor gradually increases.

[0040] As Figures 1 to 3As shown, similarly, in one embodiment, the number of the second unloading channels 124 of the compressor 10 is at least two, and the second unloading channels 124 are arranged at intervals along the moving direction of the second slide valve 220. At this time, the inlet positions of the respective second unloading channels 124 correspond to a compression ratio of the compressor 10. Therefore, setting at least two second unloading channels 124 can correspondingly indicate the compression ratios of two compressors. At this time, the inlet positions of the second unloading channels 124 indicate the positions where the compression ratio of the compressor 10 is relatively low, because the compression ratio of the compressor gradually decreases in the direction of squeezing the second cavity 120.

[0041] As Figures 1 to 3 shown, further, since one end of the elastic resetting member 230 is connected to one end of the first slide valve 210, and the other end of the elastic resetting member 230 is connected to one end of the second slide valve 220. When the fourth valve body 340 is opened and the second valve body 320 is closed, the second cavity 120 is in a pressure relief state at this time. At the same time, the third valve body 330 is opened and the first slide valve 210 is closed. At this time, the first cavity 110 is in a pressure relief state. The first slide valve 210 and the second slide valve 220 are separated under the action of the elastic resetting member 230, and the through hole 160 formed between the first slide valve 210 and the second slide valve 220 gradually increases, thereby adjusting the flow rate of the compressor 10.

[0042] To further illustrate the usage method of the above compressor 10, several specific embodiments are listed below. It is necessary to note that the first pressure driving liquid and the second pressure driving liquid are both high-pressure lubricating oil, and the first liquid supply device and the second liquid supply device are the same high-pressure oil device 410 and a high-pressure cavity is provided in the high-pressure oil device 410. The first unloading device and the second unloading device are the same low-pressure unloading device 420 and a low-pressure cavity is provided therein. Among them, the outlet of the first supply channel 112 is arranged at the bottom wall of the first cavity 110. The number of the third valve bodies 330 is at least two. One of the third valve bodies 330 is marked as Va2, and the remaining third valve bodies 330 are marked as Van. The first valve body 310 is marked as Va1. The inlet of the first unloading channel 114 correspondingly controlled by Va2 (the third valve body 330) is closer to the outlet of the first supply channel 112 than the inlets of the first unloading channels 114 correspondingly controlled by the remaining Van (the third valve bodies 330); the outlet of the second supply channel 122 is arranged at the bottom wall of the second cavity 120. The number of the fourth valve bodies 340 is at least two. One of the fourth valve bodies 340 is marked as Vb2, and the remaining fourth valve bodies 340 are marked as Vbn. The second valve body 320 is marked as Vb1. The inlet of the second unloading channel 124 correspondingly controlled by Vb2 is closer to the outlet of the second supply channel 122 than the inlets of the second unloading channels 124 correspondingly controlled by the remaining Van (the fourth valve bodies 340).

[0043] Embodiment 1

[0044] As Figure 1 shown, in this embodiment, Vb1 (the second valve body 320) is open, Vb2 (the fourth valve body 340) is closed, Va1 (the first valve body 310) is closed, Va2 (the third valve body 330) is open, and high-pressure lubricating oil enters the second cavity 120 to push the first slide valve 210 and the second slide valve 220 to move together, delaying the exhaust. At this time, the compression ratio of the compressor 10 increases; when the second slide valve 220 moves to the leftmost limit position (it should be noted that the leftmost limit position can be set according to the compression ratio requirement. In this embodiment, the leftmost limit position is the inlet position of the first unloading passage 114 controlled by Va2 (the third valve body 330)), at this time, Va1 (the first valve body 310) is opened to ensure that the first slide valve 210 and the second slide valve 220 will not disengage. At this time, the compression ratio of the compressor 10 is adjusted to the maximum.

[0045] Embodiment Two

[0046] As Figure 2 shown, in this embodiment, the number of the second unloading passages 124 is at least two and they are arranged at intervals along the axial direction of the second cavity 120. When the compressor 10 is at the maximum compression ratio, a second unloading passage 124 with an inlet located at the middle position of the second cavity 120 is set. When Vbn (the fourth valve body 340) controlling this second unloading passage 124 is opened and Va1 (the first valve body 310) is kept open, the first slide valve 210 and the second slide valve 220 move together to this middle position (i.e., the inlet position of this second unloading passage 124). At this time, the compressor 10 is adjusted to the intermediate compression ratio.

[0047] Embodiment Three

[0048] As Figure 3 shown, Vb1 (the second valve body 320) is closed, Vb2 (the fourth valve body 340) is open, and the second slide valve 220 returns to the maximum stroke under the action of the elastic reset member 230 and remains stationary; Va1 (the first valve body 310) is closed and Van (the third valve body 330) is opened. The first valve body 310 moves to the left to the corresponding position (i.e., the inlet position of the first unloading passage 114 controlled by Van (the third valve body 330)). At this time, the first slide valve 210 and the second slide valve 220 are separated and arranged at intervals to form a through hole 160, and the compressor 10 is adjusted to a partial load, that is, the flow rate of the compressor 10 is adjusted.

[0049] Embodiment Four

[0050] Since an elastic reset member 230 is provided between the first slide valve 210 and the second slide valve 220, when the machine stops, the first slide valve 210 and the second slide valve 220 can be reset to both sides, enabling no-load starting, with a small starting current and low starting power consumption. During the starting process, Va1 (the first valve body 310) is opened, Va2 (the third valve body 330) and Van (the third valve body 330) are closed, Vb1 (the second valve body 320) is closed, and Vb2 (the third valve body 330) is opened. The high-pressure oil drives the first slide valve 210 to move to the right. When the first slide valve 210 fits with the second slide valve 220, the compressor 10 reaches the full-load state. At this time, the second slide valve 220 moves to the rightmost side of the second cavity 120 (the specific position is set with corresponding limit parts as needed. In this embodiment, it is the position where it abuts against the second cover 140, and the movement of the second slide valve 220 is restricted by the second cover 140. At this time, the compressor 10 is at the minimum pressure ratio).

[0051] As Figure 1 shown, based on any of the above embodiments, the volume of the first cavity 110 and / or the second cavity 120 of the compressor 10 is adjustable. In this way, the adjustment range of the pressure ratio of the compressor 10 can be adjusted. In this embodiment, the compressor housing 100 includes a housing body 150, a first cover 130, and a second cover 140. The housing body 150 is provided with an installation cavity and a first opening and a second opening communicating with the installation cavity. The first cover 130 is telescopically arranged at the first opening, and the first cover 130, the first slide valve 210, and the inner wall of the installation cavity enclose the first cavity 110. The second cover 140 is telescopically arranged at the second opening, and the second cover 140, the second slide valve 220, and the inner wall of the installation cavity enclose the second cavity 120. The size of the first cavity 110 is adjusted by telescopically adjusting the first cover 130, and the size of the second cavity 120 is adjusted by telescopically adjusting the second cover 140. In this embodiment, the inner wall of the first opening is provided with a first internal thread structure, and the first cover 130 is threadedly connected with the first internal thread structure; and / or the inner wall of the second opening is provided with a second internal thread structure, and the second cover 140 is threadedly connected with the second internal thread structure. In this way, the size of the first cavity 110 and / or the second cavity 120 is adjusted by the threaded connection mode of the first cover 130 and / or the second cover 140 with the housing body 150.

[0052] It should be noted that the compressor flow rate refers to the actual suction gas volume flow rate of the compressor, with the unit of m 3 / h; the compressor load refers to the ratio of the current actual suction gas volume flow rate of the compressor to the maximum suction gas volume flow rate that can be achieved currently, with the unit of 100%.

[0053] It is worth mentioning that an embodiment also relates to an air conditioner including the compressor 10 in any of the above embodiments.

[0054] When the above air conditioner is in use, when the slide valve assembly is in the first working state, the first slide valve 210 and the second slide valve 220 are in contact and move synchronously. At this time, the compressor 10 is in a full load state. By synchronously moving the first slide valve 210 and the second slide valve 220, the compression ratio of the compressor 10 is adjusted, so that when the compressor 10 faces different working conditions, the compression ratio of the compressor 10 can be adaptively adjusted to improve the operating efficiency of the compressor 10; when the slide valve assembly is in the second working state, the first slide valve 210 and the second slide valve 220 are separated, and a through hole 160 is formed at an interval between the first slide valve 210 and the second slide valve 220. The through hole 160 communicates with the cavity for installing the rotor, so that the flow rate of the compressor is reduced and the load of the compressor 10 is reduced. Since the first slide valve 210 and the second slide valve 220 move relative to each other, the size of the through hole 160 becomes larger or smaller, and thus the flow rate and load of the compressor can be adjusted; thus, the compressor 10 of the present application can adjust the compression ratio of the compressor 10 when the compressor 10 is in a full load state, and at the same time, the flow rate of the compressor 10 can also be adjusted, so that the compressor 10 can maintain a high operating efficiency when facing different working conditions.

[0055] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0056] The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A compressor, characterized in that, Comprising: A compressor housing, in which a slide valve chamber is provided; And A slide valve assembly, which is arranged in the slide valve chamber. The slide valve assembly includes a first slide valve and a second slide valve. The first slide valve is arranged at one end of the slide valve assembly, and the second slide valve is arranged at the other end of the slide valve assembly. The first slide valve and the second slide valve can move relative to the slide valve chamber so that the slide valve assembly includes a first working state and a second working state; when the slide valve assembly is in the first working state, the first slide valve and the second slide valve are in contact and move synchronously; when the slide valve assembly is in the second working state, the first slide valve and the second slide valve are separated and move relatively, and the first slide valve and the second slide valve form a through hole communicating with the cavity for installing the rotor. Wherein, the other end of the first slide valve and the inner wall of the slide valve chamber enclose a first cavity, and the other end of the second slide valve and the inner wall of the slide valve chamber enclose a second cavity. A first supply channel for supplying a first pressure driving liquid into the first cavity is provided on the side wall of the first cavity, and a second supply channel for supplying a second pressure driving liquid into the second cavity is provided on the side wall of the second cavity; a first unloading channel for unloading the first pressure driving liquid is further provided on the side wall of the first cavity, and a second unloading channel for unloading the second pressure driving liquid is provided on the side wall of the second cavity.

2. The compressor according to claim 1, characterized in that, The slide valve assembly further includes an elastic reset member. One end of the elastic reset member is connected to one end of the first slide valve, and the other end of the elastic reset member is connected to one end of the second slide valve. When the slide valve assembly is in the first working state, the first slide valve and the second slide valve are stressed and squeeze the elastic reset member so that the first slide valve and the second slide valve are in contact and move synchronously; when the slide valve assembly is in the second working state, the elastic reset member pushes the first slide valve and / or the second slide valve so that the first slide valve and the second slide valve are separated and move relatively.

3. The compressor according to claim 1, characterized in that, It further includes a first valve body and a second valve body. The first valve body is used to control the opening and closing of the first supply channel, and the second valve body is used to control the opening and closing of the second supply channel.

4. The compressor according to claim 1, characterized in that, The number of the first unloading channels is at least two, and the first unloading channels are arranged at intervals along the moving direction of the first slide valve.

5. The compressor according to claim 1, wherein It further includes a third valve body and a fourth valve body. The third valve body is used to control the opening and closing of the first unloading channel, and the fourth valve body is used to control the opening and closing of the second unloading channel.

6. The compressor according to claim 1, wherein, The number of the second unloading channels is at least two, and the second unloading channels are arranged at intervals along the moving direction of the second slide valve.

7. The compressor according to any one of claims 1 to 6, characterized in that, The volume of the first cavity and / or the second cavity is adjustable.

8. The compressor according to claim 7, characterized in that, The compressor housing includes a housing body, a first cover body and a second cover body. The housing body is provided with an installation cavity, a first opening and a second opening communicating with the installation cavity. The first cover body is telescopically arranged at the first opening, and the first cover body, the first slide valve and the inner wall of the installation cavity enclose the first cavity. The second cover body is telescopically arranged at the second opening, and the second cover body, the second slide valve and the inner wall of the installation cavity enclose the second cavity.

9. The compressor according to claim 8, wherein The inner wall of the first opening is provided with a first internal thread structure, and the first cover body is in threaded engagement with the first internal thread structure; and / or the inner wall of the second opening is provided with a second internal thread structure, and the second cover body is in threaded engagement with the second internal thread structure.

10. An air conditioner, characterized in that, A compressor according to any one of claims 1 to 9.

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