Static scroll plate assembly, scroll compressor and refrigeration equipment

Abstract

The invention discloses a static scroll plate assembly, a scroll compressor and refrigeration equipment. Wherein the static scroll plate assembly comprises a plate body and a non-return structure, the plate body is provided with a compression channel and an air supply channel, and the air supply channel is provided with a first end communicated with the compression channel and a second end used for being connected with an enthalpy increasing pipe fitting; the non-return structure is arranged on the disc body, the non-return structure is provided with a movable valve element, and the valve element can move relative to the air supply channel so that the air supply channel can be communicated from the second end to the first end in a one-way mode; the movement direction of the valve element is not parallel to the axial direction of the air supply channel. According to the technical scheme, impact caused by the fact that gas in the compression cavity flows backwards into the gas supplementing and enthalpy increasing system can be prevented, and vibration and noise are reduced. And meanwhile, the movement direction of the valve element is not parallel to the axial direction of the air supply channel, so that the blocking force to the supplied air flow can be reduced, the flow of the supplied air flow is increased, and the air supply enthalpy increasing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a fixed scroll assembly, a scroll compressor and a refrigeration device. Background Art

[0002] The scroll compressor includes a fixed scroll and a movable scroll. The movable scroll is assembled with the fixed scroll and can move relative to the fixed scroll. When the scroll compressor is working, the movable scroll moves relative to the fixed scroll, so that the refrigerant forms a continuous operation of suction, compression and discharge in the compression chamber defined by the fixed scroll and the movable scroll, thereby realizing the process of suction, compression and exhaust of the compressor.

[0003] In the related art, an air replenishment and enthalpy increase channel is usually set to replenish air in the compression chamber to improve the performance of the compressor. However, the process of the refrigerant gas flowing into the scroll compressor through the enthalpy increase channel is actually in a pulsating form. When the air replenishment and enthalpy increase pressure is higher than the pressure in the compression chamber, the enthalpy increase airflow is sprayed into the compression chamber. When the pressure in the air replenishment and enthalpy increase channel is lower than the pressure in the compression chamber, the airflow in the compression chamber will flow into the enthalpy increase channel, forming a reflux phenomenon. The above process causes air replenishment and reflux to occur alternately, causing the refrigerant gas to form periodic pulsations, which can easily cause impacts on the air replenishment and enthalpy increase system, causing abnormal vibration or noise. Summary of the invention

[0004] The main purpose of the present invention is to provide a static scroll assembly, which is intended to prevent the gas in the compression chamber from flowing back into the air replenishment and enthalpy increase system, thereby reducing abnormal vibration and noise.

[0005] To achieve the above object, the fixed scroll assembly proposed in the present invention comprises:

[0006] A disc body, provided with a compression channel and an air supplement channel, wherein the air supplement channel has a first end communicating with the compression channel and a second end for connecting to an enthalpy increasing pipe; and

[0007] A check structure is arranged on the disc body, and the check structure has a movable valve core. The valve core can move relative to the air supply channel to make the air supply channel unidirectionally conductive from the second end to the first end; wherein the movement direction of the valve core is not parallel to the axial direction of the air supply channel.

[0008] In one embodiment of the present application, a first inclined surface is provided on a side of the valve core facing the second end, and the supplementary air flow flowing in from the second end can act on the first inclined surface to drive the valve core to move to open the supplementary air channel.

[0009] In one embodiment of the present application, the valve core is slidably disposed on the disc body.

[0010] In one embodiment of the present application, the disc body is provided with a first mounting hole connected to the air supplement channel on one side of the air supplement channel, and the extension direction of the first mounting hole forms an angle with the axial direction of the air supplement channel;

[0011] The valve core is slidably disposed in the first mounting hole, and is used for extending into or withdrawing from the air supplement channel to block or open the air supplement channel.

[0012] In one embodiment of the present application, the first mounting hole passes through the outer surface of the disk body and the air supply channel; the non-return structure also includes a first fixing member arranged on the outer surface of the disk body, and the first fixing member is sealingly connected to the first mounting hole to block the end of the first mounting hole away from the air supply channel.

[0013] In one embodiment of the present application, the first mounting hole is disposed above the air supply channel to penetrate the air supply channel and the top surface of the disk body; and the first fixing member is mounted on the top surface of the disk body.

[0014] In one embodiment of the present application, the check structure also includes an elastic member arranged in the first mounting hole, one end of the elastic member is connected to the first fixing member, and the other end is connected to the valve core, so as to drive the valve core to extend into the air supply channel and isolate the air supply channel.

[0015] In an embodiment of the present application, the movement direction of the valve core is perpendicular to the axial direction of the air supplement channel.

[0016] In one embodiment of the present application, the valve core is rotatably disposed on the disc body.

[0017] In one embodiment of the present application, the valve core is a valve plate structure; the check structure also includes a rotating shaft connected to the valve core, the rotating shaft is located on one side of the air supply channel, and the valve core can be flipped relative to the disk body through the rotating shaft to isolate or open the air supply channel.

[0018] In one embodiment of the present application, the disk body is provided with a mounting groove connected to the air supply channel, the non-return structure further includes a second fixing member for blocking the mounting groove, and at least part of the valve core and the rotating shaft are located in the mounting groove.

[0019] In one embodiment of the present application, the mounting groove is provided at the top of the disk body, and the second fixing member is interference-fitted at the top of the mounting groove; and the rotating shaft is located above the air supply channel.

[0020] In one embodiment of the present application, a second inclined surface is provided on one side of the valve core facing the first end, and the first inclined surface and the second inclined surface are respectively provided on two opposite sides of the valve core;

[0021] The airflow flowing in from the first end can act on the second inclined surface to drive the valve core to rotate, so as to block the air supply channel.

[0022] In an embodiment of the present application, the valve core further includes a sealing surface connecting the first inclined surface and the second inclined surface, and the valve core flipping can drive the sealing surface to abut against or separate from the wall of the air supply channel.

[0023] To achieve the above objectives, the present application also provides a scroll compressor, including a housing, a movable scroll assembly arranged in the housing, and the above-mentioned fixed scroll assembly, wherein the movable scroll assembly cooperates with the fixed scroll assembly to define a compression chamber.

[0024] To achieve the above objectives, the present application also provides a refrigeration device, including the above scroll compressor.

[0025] In the static vortex disk assembly of the technical solution of the present invention, the disk body is provided with a compression channel and an air supply channel, the first end of the air supply channel is connected to the compression channel, and the second end is used to connect the enthalpy increasing pipe, so as to realize the function of air supplying and enthalpy increasing to the compression chamber through the air supply channel. By arranging a check structure on the disk body, the check structure has a valve core that can move relative to the air supply channel, so that the air supply channel is unidirectionally conducted from the second end to the first end, so as to prevent the gas in the compression chamber from flowing back into the air supply and enthalpy increasing system to cause impact, and reduce vibration and noise. At the same time, the movement direction of the valve core is not parallel to the axial direction of the air supply channel, which can reduce the blocking force on the air supply airflow, increase the flow rate of the air supply airflow, and improve the efficiency of air supply and enthalpy increasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of an embodiment of a scroll compressor of the present invention;

[0028] Figure 2 It is a structural schematic diagram of an embodiment of a fixed scroll assembly of the present invention;

[0029] Figure 3 for Figure 2 A partial enlarged view of the M in the middle;

[0030] Figure 4 for Figure 2 A top view of an embodiment of the present invention;

[0031] Figure 5 for Figure 2 A schematic diagram of the structure of the disk body of the embodiment;

[0032] Figure 6 for Figure 2 A schematic structural diagram of a non-return structure in an embodiment;

[0033] Figure 7 It is a structural schematic diagram of another embodiment of the fixed scroll assembly of the present invention;

[0034] Figure 8 for Figure 7 A local enlarged view of the N position in the middle;

[0035] Fig. 9 for Figure 7 A schematic structural diagram of a disc body in the embodiment;

[0036] Fig.10 for Figure 7 Schematic diagram of the structure of the valve core in the embodiment.

[0037] Description of Figure Numbers:

[0038] Label name Label name 100 Disk body 211 First slope 101 Compression Channel 212 second slope 102 Air supply channel 213 Sealing surface 102a First End 220 First fixing piece 102b Second end 221 Fixed part 103 First mounting hole 222 Sealing part 104 Mounting slot 230 Elastic parts 200 Non-return structure 240 Shaft 210 Valve core 250 Second fixing member 210a Connection hole 300 case

[0039] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] The present invention proposes a static scroll assembly, which aims to provide a check structure in the enthalpy-increasing air supply channel so that the airflow in the air supply channel is unidirectionally conducted from the enthalpy-increasing pipe to the compression chamber, thereby preventing the gas in the compression chamber from flowing back into the air supply enthalpy-increasing system and causing an impact on the structure of the enthalpy-increasing system, reducing abnormal vibration and noise, and achieving the effect of improving the performance of the compressor.

[0045] In the embodiment of the present invention, Figure 2 , Figure 3 , Figure 7 as well as Figure 8 As shown, the fixed scroll assembly includes a disk body 100 and a non-return structure 200 .

[0046] The disc body 100 is provided with a compression channel 101 and an air supply channel 102, and the air supply channel 102 has a first end 102a connected to the compression channel 101 and a second end 102b for connecting the enthalpy increasing pipe; the non-return structure 200 is provided on the disc body 100, and the non-return structure 200 has a movable valve core 210, and the valve core 210 can move relative to the air supply channel 102 so that the air supply channel 102 is unidirectionally guided from the second end 102b to the first end 102a; wherein the movement direction of the valve core 210 is not parallel to the axial direction of the air supply channel 102.

[0047] In a scroll compressor, the disk body 100 of the fixed scroll assembly cooperates with the orbiting scroll assembly, and the compression channel 101 of the disk body 100 cooperates with the corresponding compression channel on the orbiting scroll to form a compression chamber. The compression function of the refrigerant gas is achieved through the movement of the orbiting scroll relative to the fixed scroll. In order to improve the performance of the compressor, an air supply channel 102 can be provided on the disk body 100 to supplement the refrigerant in the compression chamber. The first end 102a of the air supply channel 102 is connected to the compression channel 101, and the second end 102b is connected to the enthalpy increasing pipe in the system. Therefore, when air supply and enthalpy increasing are needed, the refrigerant gas can be input into the air supply channel 102 from the second end 102b through the enthalpy increasing pipe and sprayed into the compression chamber through the first end 102a; when air supply and enthalpy increasing are not needed, the refrigerant gas can be stopped from being introduced into the air supply channel 102. However, under this structure, since the gas in the compression chamber has a certain pressure, the refrigerant gas in the compression chamber can easily enter the air supply channel 102 from the first end 102a, and is likely to flow back into the enthalpy increasing pipe to cause impact. Based on this, the present embodiment sets a check structure 200 on the disk body 100. The check structure 200 has a movable valve core 210. The valve core 210 can move relative to the air supply channel 102 so that the air supply channel 102 can only be unidirectionally conducted from the second end 102b to the first end 102a, that is, the air flow can only flow into the compression chamber but not flow back. In this way, the refrigerant in the compression chamber can be prevented from flowing back into the air supply enthalpy increase system to cause impact, thereby eliminating enthalpy increase pulsation and reducing vibration and noise.

[0048] It can be understood that the air flow flows along the axial direction from the second end 102b to the first end 102a in the air supply channel 102, and the movement of the valve core 210 can block or connect the air supply channel 102. In this embodiment, the movement direction of the valve core 210 is set to be non-parallel to the axial direction of the air supply channel 102. In the process of the valve core 210 opening the air supply channel 102, compared with the movement of the valve core 210 being parallel to the axial direction of the air supply channel 102 (in this way, the valve core 210 is always in the flow path of the air supply flow), the valve core 210 of this embodiment will not occupy too much flow cross-sectional area of ​​the air supply channel 102, which can reduce the resistance to the air supply flow, increase the air supply flow rate, and improve the enthalpy increase air supply efficiency.

[0049] As an example, the valve core 210 can be a sliding motion or a rotating motion. When the valve core 210 is a sliding motion, the valve core 210 can slide in a direction that is at an angle to the axial direction of the air supply channel 102. In this way, when air supply is required to increase enthalpy, the valve core 210 moves in a direction away from the air supply channel 102 to open the air supply channel 102. At this time, the cross-sectional area of ​​the air supply channel 102 is the flow cross-sectional area of ​​the air supply airflow, thereby increasing the flow rate of the air supply airflow. When the valve core 210 is a rotating motion, the valve core 210 can rotate relative to the air supply channel 102 (such as a valve plate, a baffle, etc.). In this way, when air supply is required to increase enthalpy, the valve core 210 can rotate toward the wall of the air supply channel 102 to open the air supply channel 102. In this way, too much flow cross-sectional area of ​​the air supply channel 102 will not be occupied, and the resistance to the air supply airflow will be reduced, thereby increasing the flow rate of the air supply airflow. In actual application, the movement mode of the valve core 210 can be determined according to actual conditions and is not limited here.

[0050] In actual application, the specific structure of the valve core 210 can be determined according to the actual situation, such as a block structure, a plate structure, a strip structure or other shapes. The driving force of the movement of the valve core 210 can also be determined according to the actual situation, such as a specially set driving member to drive the movement of the valve core 210, or the valve core 210 itself The structural design and the coordination of the air supply airflow can realize the function of driving the movement of the valve core 210, or it can also be that there are both a driving member and its own structural design to simultaneously realize the function of the valve core 210, etc. The specific driving method of the movement of the valve core 210 is not limited here. In addition, the way the valve core 210 moves from the position of opening the air supply channel 102 to the position of blocking the air supply channel 102 is also not limited, such as it can also be a sliding motion or a rotational motion, and its driving force can be its own gravity, or a driving member is set, or it can be realized by the coordination of its own structural design and the refrigerant airflow, etc.

[0051] In the static vortex disk assembly of the technical solution of the present invention, the disk body 100 is provided with a compression channel 101 and an air supply channel 102, the first end 102a of the air supply channel 102 is connected to the compression channel 101, and the second end 102b is used to connect the enthalpy increasing pipe, so as to realize the function of air supplying and enthalpy increasing to the compression chamber through the air supply channel 102. By arranging a check structure 200 on the disk body 100, the check structure 200 has a valve core 210 that can move relative to the air supply channel 102, so that the air supply channel 102 is unidirectionally conducted from the second end 102b to the first end 102a, so as to prevent the gas in the compression chamber from backflowing into the air supply and enthalpy increasing system to cause impact, and reduce vibration and noise. At the same time, the movement direction of the valve core 210 is not parallel to the axial direction of the air supply channel 102, which can reduce the blocking force on the air supply airflow, increase the flow rate of the air supply airflow, and improve the efficiency of air supply and enthalpy increasing.

[0052] In one embodiment of the present application, please refer to Figure 2 , Figure 3 , Figure 7 as well as Figure 8 A first inclined surface 211 is disposed on one side of the valve core 210 facing the second end 102 b , and the supplementary air flow flowing in from the second end 102 b can act on the first inclined surface 211 to drive the valve core 210 to move to open the supplementary air channel 102 .

[0053] In this embodiment, a first inclined surface 211 is provided on the side of the valve core 210 facing the second end 102b, and the first inclined surface 211 can play a role of a switching guide. When air replenishment and enthalpy increase are required, the air replenishment flow enters the air replenishment channel 102 from the second end 102b and acts on the first inclined surface 211. The first inclined surface 211 pushes the valve core 210 to move in a direction that is not parallel to the axial direction of the air replenishment channel 102, so as to open the air replenishment channel 102 and realize the air replenishment and enthalpy increase function.

[0054] The first inclined surface 211 of the present embodiment plays the role of switching transmission of the valve core 210. The function of driving the valve core 210 to move can be achieved through the air flow without the need for an additional dedicated driving component to drive the valve core 210 to move, thereby simplifying the structure and reducing costs.

[0055] In actual application, the movement mode of the valve core 210 can be determined according to actual conditions. The following is an example of the structure of the valve core 210 with different movement modes:

[0056] See also Figures 2 to 6 In one embodiment of the present application, the valve core 210 is slidably disposed on the disk body 100 .

[0057] In this embodiment, taking the sliding connection between the valve core 210 and the disc body 100 as an example, a first inclined surface 211 is provided on the side of the valve core 210 facing the second end 102b. At this time, the valve core 210 is equivalent to a wedge-shaped block structure. When the air flow acts on the first inclined surface 211, the valve core 210 can be pushed to move toward the outside of the air channel 102 to open the air channel 102. When air is not needed, the valve core 210 can slide from the outside of the air channel 102 to the inside of the air channel 102 to block the air channel 102, such as by its own gravity or a structure such as a driving member to achieve reset to ensure the blocking effect.

[0058] For further information, see Figure 2 and Figure 3 The disk body 100 is provided with a first mounting hole 103 connected to the air supply channel 102 on one side of the air supply channel 102, and the extension direction of the first mounting hole 103 forms an angle with the axial direction of the air supply channel 102; the valve core 210 is slidably arranged in the first mounting hole 103, and is used to extend into or withdraw from the air supply channel 102 to isolate or open the air supply channel 102.

[0059] A first mounting hole 103 for mounting the valve core 210 is provided on the disk body 100, and the first mounting hole 103 is connected to the air supply channel 102, so that when the valve core 210 slides along the first mounting hole 103, it can extend into the air supply channel 102 to cut off the air supply channel 102, or retreat from the air supply channel 102 to the first mounting hole 103 to open the air supply channel 102.

[0060] The first mounting hole 103 in this embodiment is located on one side of the air supply channel 102. With such a configuration, the valve core 210 will extend from the first mounting hole 103 into the air supply channel 102 only when the air supply channel 102 needs to be blocked. In other words, the structure for mounting the valve core 210 will not occupy the original space of the air supply channel 102. Compared with the method of directly setting the check structure 200 in the air supply channel 102, this embodiment can reduce the enthalpy increase clearance volume and improve the efficiency of the compressor. The extension direction of the first mounting hole 103 is at an angle to the axial direction of the air supply channel 102. It can be understood that the axial direction of the first mounting hole 103 can be inclined or vertically set relative to the axial direction of the air supply channel 102, as long as it can ensure that the valve core 210 slides along the first mounting hole 103 into the air supply channel 102 or retreats into the first mounting hole 103.

[0061] For further information, see Figures 3 to 6 The first mounting hole 103 passes through the outer surface of the disk body 100 and the air supply channel 102; the non-return structure 200 also includes a first fixing member 220 arranged on the outer surface of the disk body 100, and the first fixing member 220 is sealed and connected to the first mounting hole 103 to block the end of the first mounting hole 103 away from the air supply channel 102.

[0062] It can be understood that the first mounting hole 103 is used to install the valve core 210. In order to facilitate installation, the first mounting hole 103 of this embodiment penetrates the outer surface of the disc body 100 and the air supply channel 102, that is, the first mounting hole 103 has a mounting opening on the outer surface of the disc body 100, so that the valve core 210 can be smoothly assembled into the first mounting hole 103 from the outside of the disc body 100, simplifying the difficulty of installation. Based on this structure, in order to prevent the refrigerant from leaking from the mounting opening, this embodiment sets a first fixing member 220 on the outer surface of the disc body 100, and the first fixing member 220 is sealed and connected with the first mounting hole 103, so as to achieve the blocking function of the first mounting hole 103 and prevent the refrigerant gas from leaking from the first mounting hole 103.

[0063] As an example, see Figure 3 and Figure 6The first fixing member 220 includes a fixing portion 221 and a sealing portion 222. The fixing portion 221 may be a "T"-shaped structure. The sealing portion 222 is sleeved on one end of the fixing portion 221 inserted into the first mounting hole 103 to achieve the sealing function between the first fixing member 220 and the first mounting hole 103. Optionally, the fixing portion 221 is fixedly mounted to the disk body 100 by screws. Alternatively, as an example, the first fixing member 220 is a "T"-shaped structure and can be directly mounted to the first mounting hole 103 by interference fit, which can ensure sealing and reduce the number of processes.

[0064] In actual application, the first mounting hole 103 can be a side or top surface that penetrates the disc body 100, and accordingly, the first fixing member 220 can be installed on the side or top surface of the disc body 100. In this embodiment, considering the internal structure layout of the compressor and the structure of the fixed scroll disc, as an example, the first mounting hole 103 is arranged above the air supply channel 102 to connect the air supply channel 102 and the top surface of the disc body 100; the first fixing member 220 is installed on the top surface of the disc body 100. By arranging the first mounting hole 103 above the air supply channel 102, the valve core 210 slides in the first mounting hole 103, so that when air supply is not needed, the valve core 210 can move downward to the air supply channel 102 under its own gravity to cut off the air supply channel 102, without the need to set up an additional reset drive member to drive the valve core 210 to move, so that the structure can be simplified and the cost can be saved. In addition, arranging the first mounting hole 103 at the top of the disc body 100 can simplify the difficulty of the processing technology and improve the processing efficiency.

[0065] To make the check more effective, refer to Figure 3 and Figure 6 The check structure 200 also includes an elastic member 230 disposed in the first mounting hole 103 , one end of the elastic member 230 is connected to the first fixing member 220 , and the other end is connected to the valve core 210 , so as to drive the valve core 210 to extend into the air supply channel 102 and isolate the air supply channel 102 .

[0066] By providing the elastic member 230, a driving force is provided for the valve core 210 to move toward the air supply channel 102, so that the valve core 210 has a better effect of isolating the air supply channel 102, and can further prevent the gas in the compression chamber from flowing back into the air supply enthalpy increase system.

[0067] As an example, the elastic member 230 is a spring, which is sandwiched between the first fixing member 220 and the valve core 210. When air replenishment is needed, the air flow drives the valve core 210 to move toward the first mounting hole 103 through the first inclined surface 211 to compress the elastic member 230; when air replenishment is stopped, the valve core 210 moves toward the air replenishment channel 102 under the dual effects of its own gravity and the elastic force of the elastic member 230 to block the air replenishment channel 102.

[0068] For further information, see Figures 3 to 5 The movement direction of the valve core 210 is perpendicular to the axial direction of the air supply channel 102 .

[0069] By making the movement direction of the valve core 210 perpendicular to the axial direction of the air supply channel 102, the valve core 210 is extended or retracted radially along the air supply channel 102. Such an arrangement can improve the transmission efficiency. The valve core 210 can be pushed to move to open the air supply channel 102 by a smaller air supply flow driving force. At the same time, the valve core 210 can also improve the isolation ability of the air supply channel 102.

[0070] In practical applications, the axial direction of the first mounting hole 103 can be perpendicular to the axial direction of the air supply channel 102 , so that the sliding direction of the valve core 210 is perpendicular to the axial direction of the air supply channel 102 .

[0071] See also Figures 7 to 10 In another embodiment of the present application, the valve core 210 is rotatably disposed on the disk body 100 .

[0072] In this embodiment, taking the rotatable connection between the valve core 210 and the disc body 100 as an example, a first inclined surface 211 is provided on the side of the valve core 210 facing the second end 102b. At this time, the valve core 210 is equivalent to a baffle or inclined plate structure with an inclined surface. When the air supply flow acts on the first inclined surface 211, it can push the valve core 210 to rotate relative to the air supply channel 102 to open the air supply channel 102. When air supply is not needed, the valve core 210 can be reset and rotated to block the air supply channel 102 by its own gravity or a structure such as a driving member.

[0073] For further information, see Figure 8 and Fig.10 the check structure 200 also includes a rotating shaft 240 connected to the valve core 210, the rotating shaft 240 is located on one side of the air supply channel 102, and the valve core 210 can be flipped relative to the disk body 100 by the rotating shaft 240 to block or open the air supply channel 102.

[0074] By setting the valve core 210 as a valve plate structure, the shaft 240 is located on one side of the air supply channel 102, so that one end of the valve core 210 can be rotatably connected to the disk body 100 through the shaft 240, and the other end can be flipped around the shaft 240 to open or block the air supply channel 102.

[0075] The valve core 210 is rotatably connected to the disk body 100 via the rotating shaft 240. It is understandable that the valve core 210 and the rotating shaft 240 may be fixedly connected, and the rotating shaft 240 may be rotatably connected to the disk body 100; or the valve core 210 and the rotating shaft 240 may be rotatably connected, and the rotating shaft 240 may be fixedly connected to the disk body 100. As an example, a connection hole 210a is provided at one end of the valve core 210, and the rotating shaft 240 is movably inserted into the connection hole 210a, and the rotating shaft 240 is fixedly connected to the disk body 100.

[0076] For further information, see Figures 7 to 9 The disk body 100 is provided with a mounting groove 104 communicating with the air supply channel 102 , the check structure 200 further includes a second fixing member 250 for blocking the mounting groove 104 , and at least a portion of the valve core 210 and the rotating shaft 240 are located in the mounting groove 104 .

[0077] By providing a mounting groove 104 for mounting the valve core 210 on the disk body 100 , the mounting groove 104 is communicated with the air supply channel 102 , so that the valve core 210 can open or block the air supply channel 102 when rotating in the mounting groove 104 .

[0078] It can be understood that the installation groove 104 is used to install the valve core 210. In order to facilitate installation, the installation groove 104 of this embodiment penetrates the outer surface of the disc body 100 and the air supply channel 102, that is, the installation groove 104 has an installation port on the outer surface of the disc body 100, so that the valve core 210 can be smoothly assembled into the installation groove 104 from the outside of the disc body 100, simplifying the difficulty of installation. Based on this structure, in order to prevent the refrigerant from leaking from the installation port, the second fixing member 250 is provided on the outer surface of the disc body 100 in this embodiment. The second fixing member 250 is sealed and connected with the installation groove 104, so as to achieve the function of blocking the installation groove 104 and prevent the refrigerant gas from leaking from the installation groove 104.

[0079] As an example, the second fixing member 250 can be directly installed in the installation groove 104 by interference fit, which can ensure sealing and reduce the number of working steps.

[0080] In actual application, the mounting groove 104 can be arranged on the side or top surface of the disk body 100, and correspondingly, the second fixing member 250 can be installed on the side or top surface of the disk body 100. In this embodiment, considering the internal structure layout of the compressor and the structure of the fixed scroll disk, as an example, the mounting groove 104 is arranged on the top of the disk body 100, and the second fixing member 250 is interference-fitted with the top of the mounting groove 104; the rotating shaft 240 is located above the air supply channel 102. In other embodiments, the rotating shaft 240 can also connect the valve core 210 and the second fixing member 250, and the valve core 210 rotates around the rotating shaft 240 to realize flipping in the mounting groove 104 to open or block the air supply channel 102.

[0081] It can be understood that the mounting groove 104 in this embodiment is located on the flow path of the air supply channel 102, that is, the air supply channel 102 is provided with the mounting groove 104. By locating the rotating shaft 240 above the air supply channel 102, the valve core 210 can be turned up and down in the mounting groove 104, and the center of gravity of the valve core 210 when not subject to external force is lower than the rotation center. When air supply is required, the air supply flow acts on the first inclined surface 211 to drive the valve core 210 to turn upward relative to the rotating shaft 240 to open the air supply channel 102. When the air supply is stopped, the valve core 210 can turn downward under the action of its own gravity until the bottom of the valve core 210 is against the bottom wall of the mounting groove 104 to achieve the function of isolating the air supply channel 102, without the need to additionally set a reset drive to drive the valve core 210 to rotate. Such a setting can simplify the structure and save costs.

[0082] To make the check more effective, refer to Figure 8 and Fig.10 A second inclined surface 212 is provided on one side of the valve core 210 facing the first end 102a, and the first inclined surface 211 and the second inclined surface 212 are respectively provided on opposite sides of the valve core 210; the airflow flowing in from the first end 102a can act on the second inclined surface 212 to drive the valve core 210 to rotate, so as to isolate the air supply channel 102.

[0083] By setting a second inclined surface 212 on the side of the valve core 210 away from the first inclined surface 211, when the air supply is stopped, the refrigerant flow flowing into the compression chamber can act on the second inclined surface 212, providing a driving force for the valve core 210 to rotate from the open position to the isolation position, so that the valve core 210 can better isolate the air supply channel 102, and can further prevent the gas in the compression chamber from flowing back into the air supply enthalpy increase system.

[0084] It should be noted that, in the present embodiment, when air replenishment is needed, the air replenishment airflow drives the valve core 210 to flip upward through the first inclined surface 211 to open the air replenishment channel; when the air replenishment is stopped, the valve core 210 is reset and flipped under the combined action of its own gravity and the refrigerant airflow entering from the first end 102a, so that the end face of the valve core 210 is sealed against the wall of the installation groove 104, thereby achieving a better non-return effect.

[0085] As an example, the valve core 210 can be an inclined plate structure, and a sealing surface 213 is provided at one end of the valve core 210 away from the rotation center, and the sealing surface 213 connects the first inclined surface 211 and the second inclined surface 212. When air replenishment is not required (initial position), the sealing surface 213 is sealed against the wall of the mounting groove 104. When air replenishment is required, the air replenishment airflow drives the valve core 210 to flip through the first inclined surface 211, so that the sealing surface 213 leaves the wall of the mounting groove 104 to open the air replenishment channel 102, thereby realizing the air replenishment function. When the air replenishment stops, the valve core 210 rotates under gravity, and at the same time, the airflow in the compression chamber flows into the air replenishment channel 102 to act on the second inclined surface 212, so that the valve core 210 is reset and flipped to the sealing surface 213 and the wall of the mounting groove 104 are sealed against each other, thereby realizing the partition effect.

[0086] In order to further enhance the non-return effect, an elastic member may be provided to reset the valve core 210 . Optionally, the elastic member may be a torsion spring structure provided at the rotating shaft 240 , or may be a spring connected to the valve core 210 , and the like.

[0087] The present invention also provides a scroll compressor, see Figure 1 The scroll compressor includes a housing 300, an orbiting scroll assembly and a fixed scroll assembly disposed in the housing 300. The specific structure of the fixed scroll assembly refers to the above embodiment. Since the scroll compressor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the orbiting scroll assembly and the fixed scroll assembly cooperate to define a compression chamber.

[0088] The present invention also proposes a refrigeration device, which includes a scroll compressor. The specific structure of the scroll compressor refers to the above-mentioned embodiment. Since the refrigeration device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0089] Optionally, the refrigeration equipment may be an air conditioner, a refrigerator, or a cold chain transport vehicle, etc.

[0090] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fixed scroll assembly, characterized in that: include: The disc body is provided with a compression channel and an air supplement channel, wherein the air supplement channel has a first end communicating with the compression channel and a second end for connecting to an enthalpy increasing pipe; and A check structure is arranged on the disc body, and the check structure has a movable valve core. The valve core can move relative to the air supply channel to make the air supply channel unidirectionally conductive from the second end to the first end; wherein the movement direction of the valve core is not parallel to the axial direction of the air supply channel.

2. The fixed scroll assembly according to claim 1, characterized in that: A first inclined surface is provided on one side of the valve core facing the second end, and the supplementary air flow flowing in from the second end can act on the first inclined surface to drive the valve core to move and open the supplementary air channel.

3. The fixed scroll assembly according to claim 2, characterized in that: The valve core is slidably arranged on the disc body.

4. The fixed scroll assembly according to claim 3, characterized in that: The disc body is provided with a first mounting hole on one side of the air supplement channel, which is in communication with the air supplement channel, and the extending direction of the first mounting hole forms an angle with the axial direction of the air supplement channel; The valve core is slidably matched with the first mounting hole, and is used to extend into or withdraw from the air supplement channel to block or open the air supplement channel.

5. The fixed scroll assembly according to claim 4, characterized in that: The first mounting hole passes through the outer surface of the disk body and the air supply channel; the non-return structure also includes a first fixing member arranged on the outer surface of the disk body, and the first fixing member is sealed and connected to an end of the first mounting hole away from the air supply channel.

6. The fixed scroll assembly according to claim 5, characterized in that: The first mounting hole is arranged above the air supplement channel to penetrate the air supplement channel and the top surface of the disk body; the first fixing member is mounted on the top surface of the disk body.

7. The fixed scroll assembly according to claim 5, characterized in that: The non-return structure further includes an elastic member disposed in the first mounting hole, one end of the elastic member is connected to the first fixing member, and the other end is connected to the valve core, so as to drive the valve core to extend into the air supply channel and isolate the air supply channel.

8. The fixed scroll assembly according to any one of claims 3 to 7, characterized in that: The movement direction of the valve core is perpendicular to the axial direction of the air supplement channel.

9. The fixed scroll assembly according to claim 2, wherein: The valve core is rotatably arranged on the disc body.

10. The fixed scroll assembly according to claim 9, wherein: The valve core is a valve plate structure; the check structure also includes a rotating shaft connected to the valve core, and the rotating shaft is located on one side of the air supply channel; the valve core can be flipped relative to the disk body through the rotating shaft to block or open the air supply channel.

11. The fixed scroll assembly according to claim 10, wherein: The disc body is provided with a mounting groove communicated with the air supplement channel, the non-return structure further comprises a second fixing member for blocking the mounting groove, and at least part of the valve core and the rotating shaft are located in the mounting groove.

12. The fixed scroll assembly according to claim 11, wherein: The installation groove is arranged at the top of the disk body, and the second fixing member is interference-fitted at the top of the installation groove; and the rotating shaft is located above the air supplement channel.

13. The fixed scroll assembly according to any one of claims 9 to 12, characterized in that: A second inclined surface is provided on one side of the valve core facing the first end, and the first inclined surface and the second inclined surface are respectively provided on two opposite sides of the valve core; The airflow flowing in from the first end can act on the second inclined surface to drive the valve core to rotate and block the air supply channel.

14. The fixed scroll assembly according to claim 13, wherein: The valve core further includes a sealing surface connecting the first inclined surface and the second inclined surface. The valve core can be turned over to drive the sealing surface to abut against or separate from the wall surface of the air supplement channel.

15. A scroll compressor, characterized in that: The invention comprises a shell, an orbiting scroll assembly arranged in the shell, and a fixed scroll assembly according to any one of claims 1 to 14, wherein the orbiting scroll assembly cooperates with the fixed scroll assembly to define a compression chamber.

16. A refrigeration device, characterized in that: Comprising the scroll compressor of claim 15.

Images