Scroll plate assembly, scroll compressor and vehicle

Abstract

The invention provides a scroll plate assembly, a scroll compressor and a vehicle, the scroll plate assembly comprises a first scroll plate and a switch component, the first scroll plate is used for enclosing an air suction space with a second scroll plate, the first scroll plate is provided with an air suction hole, and the air suction hole is used for communicating with the air suction space; the switch component is movably connected with the first scroll plate, and the switch component is used for opening or closing the air suction hole. According to the scroll plate assembly, the scroll compressor and the vehicle, the air suction hole can be opened or closed through the switch component so as to control the flow of fluid flowing into the air suction space, and therefore the compression volume of the air suction space can be adjusted; according to the scroll compressor, the problem of fluid leakage caused by gap enlargement or non-uniformity of the air suction space formed by the movable disc component and the static disc component in the compression process can be prevented, the use reliability of the scroll compressor can be improved, and the service life of the scroll compressor can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fluid compression, and particularly relates to a scroll disc assembly, a scroll compressor and a vehicle. BACKGROUND

[0002] The scroll compressor is a volumetric compression compressor, and the compression components mainly include a dynamic scroll disc and a static scroll disc. The scroll compressor has the advantages of small volume, simple structure and convenient maintenance, and can provide efficient and stable gas compression effect, and is therefore widely used in the industrial field.

[0003] However, in the scroll compressor provided by the related art, the height of the suction space is changed by adjusting and fixing the position of the static scroll disc in the axial direction, so as to achieve the purpose of adjusting the volume of the suction space. This form of variable volume requires moving the static scroll disc, which will affect the meshing state between the dynamic scroll disc and the static scroll disc after moving, causing the static scroll disc to be deflected and friction failure, or causing the gap to be large or unevenly distributed, thereby reducing the compression efficiency and affecting the reliability and service life of the scroll compressor. SUMMARY

[0004] To overcome the deficiencies of the prior art, the present application provides a scroll disc assembly, a scroll compressor and a vehicle, which can control the flow rate of fluid flowing into the suction space, thereby achieving the adjustment of the compression volume of the suction space. At the same time, the problems of meshing deviation or friction failure between the dynamic disc member and the static disc member caused by moving the static disc member can be avoided, and the problem of fluid leakage caused by the gap between the suction space formed by the dynamic disc member and the static disc member being large or uneven during compression can be prevented, which is beneficial to ensuring the compression efficiency of the scroll compressor. Moreover, since the static disc member does not need to move axially relative to the dynamic disc member to adjust the compression volume of the suction space, the coaxial problem between the dynamic disc member and the static disc member caused by the movement of the static disc member relative to the dynamic disc member can be avoided, which is beneficial to reducing the manufacturing difficulty and cost of the scroll compressor. The static disc member does not need to move axially relative to the dynamic disc member, which can also improve the reliability and service life of the scroll compressor.

[0005] In a first aspect, the present application provides a scroll disc assembly, which comprises:

[0006] a first scroll disc, which is used to enclose a suction space with a second scroll disc, and is provided with a suction hole for communicating with the suction space; and

[0007] a switching component, which is movably connected with the first scroll disc, and is used to open or close the suction hole.

[0008] In a possible implementation, the position of the suction hole and the position of the switch component at least partially overlap in the axial direction of the first scroll plate.

[0009] In a possible implementation, the switch component is movably arranged in the axial direction of the first scroll plate.

[0010] In a possible implementation, the first scroll plate comprises a first plate body and a first scroll tooth protruding from one side of the first plate body, at least part of the switch component is located on the side of the first plate body away from the first scroll tooth, the first scroll tooth and the first plate body are used to enclose the suction space with the second scroll plate; the suction hole is arranged on the first plate body and extends to the first scroll tooth.

[0011] In a possible implementation, the length of the suction hole in the direction perpendicular to the axial direction of the first scroll plate decreases in the direction from the first plate body to the first scroll tooth.

[0012] In a possible implementation, the suction hole comprises a first opening and a second opening, the first opening is arranged on the side of the first plate body away from the first scroll tooth, the second opening is arranged on the first scroll tooth, the inner wall of the suction hole comprises a first inclined surface; the switch component comprises a second inclined surface and a connecting surface connected to each other, when the first inclined surface and the second inclined surface are fitted, the switch component closes the first opening and the second opening, and the connecting surface is located in the second opening and is coplanar with part of the first scroll tooth.

[0013] In a possible implementation, the number of the suction holes is multiple, the number of the suction spaces enclosed by the first scroll plate and the second scroll plate is multiple, and at least one of the suction holes is used to communicate with a corresponding one of the suction spaces.

[0014] In a possible implementation, along the extension direction of the first scroll tooth, one of the suction holes is arranged on the first scroll tooth every 90°.

[0015] In a possible implementation, the first scroll tooth comprises an inner tooth surface and an outer tooth surface, the inner tooth surface and the outer tooth surface are arranged opposite to each other in the radial direction of the first scroll tooth, and the inner tooth surface is arranged towards the center of the first scroll tooth; in the two symmetrically arranged suction spaces enclosed by the first scroll plate and the second scroll plate, the opening of the suction hole on one of the suction spaces is arranged on the inner tooth surface, and the opening of the suction hole on the other of the suction spaces is arranged on the outer tooth surface.

[0016] In a possible implementation, the first disc body comprises a first part and a second part, the first part and the second part are arranged in a stacked manner, the first part is connected with the first spiral tooth; the first part is provided with a first channel on a side facing the second part, the air suction hole is arranged on an inner wall of the first channel; the first part is provided with an air inlet on a circumferential side wall, the first channel is in communication with the air inlet.

[0017] In a possible implementation, the switch component comprises a driving member and an adjusting member, the driving member is arranged in connection with the adjusting member, the driving member is used to drive the adjusting member to extend into or out of the air suction hole in a depth, and the adjusting member is movably arranged in the air suction hole.

[0018] In a possible implementation, the switch component further comprises a reset member, the reset member is connected between the driving member and the adjusting member.

[0019] In a possible implementation, the first scroll disc is a static scroll disc.

[0020] In a second aspect, the application provides a scroll compressor, characterized in that the scroll compressor comprises:

[0021] The scroll disc assembly and the second scroll disc described above, the second scroll disc and the first scroll disc enclose the air suction space.

[0022] In a third aspect, the application provides a vehicle, comprising:

[0023] The scroll compressor described above.

[0024] The scroll plate assembly, scroll compressor, and vehicle provided in this application have an intake port connected to the intake space. A switching component is movably connected to the first scroll plate, and the switching component is used to open or close the intake port to control the flow rate of fluid into the intake space, thereby achieving adjustable compression volume of the intake space. Therefore, in the scroll compressor provided in this application, the stationary plate component does not need to move axially relative to the moving plate component to achieve adjustable compression volume of the intake space. This avoids problems such as meshing deviation or friction failure between the moving and stationary plate components caused by moving the stationary plate component. It also prevents fluid leakage during compression due to increased or uneven gaps in the intake space formed by the moving and stationary plate components, thus ensuring the compression efficiency of the scroll compressor. Furthermore, since the stationary plate component does not need to move axially relative to the moving plate component to achieve adjustable compression volume of the intake space, it avoids coaxiality problems between the moving and stationary plate components that would arise from the need for the stationary plate component to move relative to the moving plate component, thereby reducing the manufacturing difficulty and cost of the scroll compressor. The stationary disc component does not need to move axially relative to the moving disc component, which can also improve the reliability and service life of the scroll compressor. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are merely some implementation methods provided by the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is an assembly structure diagram of a scroll compressor provided in an embodiment of this application from a first-view perspective;

[0027] Figure 2 This is an assembly structure diagram of a scroll compressor provided in an embodiment of this application from a second perspective;

[0028] Figure 3 yes Figure 2 The scroll compressor shown is a cross-sectional view along the AA direction;

[0029] Figure 4 This is a partial cross-sectional view of a scroll compressor in the off state according to an embodiment of this application;

[0030] Figure 5 This is a partial cross-sectional view of a scroll compressor in the open state according to an embodiment of this application;

[0031] Figure 6 This is a cross-sectional view of a switch component closing the intake port according to an embodiment of this application;

[0032] Figure 7 is a sectional view of a switch component opening an air suction hole provided by an embodiment of the present application;

[0033] Figure 8 is an assembly structure diagram of a scroll compressor from a third perspective provided by an embodiment of the present application;

[0034] Figure 9 is a sectional view of a scroll compressor along a B-B direction shown in Figure 8

[0035] Figure 10 is a sectional view of a scroll compressor along a C-C direction shown in Figure 8

[0036] Figure 11 is an assembly structure diagram of a first scroll plate and a second scroll plate provided by an embodiment of the present application;

[0037] Figure 12 is an assembly structure diagram of a first scroll plate and a switch component provided by an embodiment of the present application Figure 1 ;

[0038] Figure 13 is an assembly structure diagram of a first scroll plate and a switch component provided by an embodiment of the present application Figure 2 ;

[0039] Figure 14 is a structure diagram of a switch component provided by an embodiment of the present application;

[0040] Figure 15 is an assembly structure diagram of a scroll plate assembly from a first perspective provided by an embodiment of the present application;

[0041] Figure 16 is an assembly structure diagram of a scroll plate assembly from a second perspective provided by an embodiment of the present application;

[0042] Figure 17 is a sectional view of an assembly structure of a first scroll plate and a second scroll plate along a D-D direction shown in Figure 11 DETAILED DESCRIPTION

[0043] The technical solutions of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] ​​​The following description of the embodiments is provided as an example to illustrate the particular embodiments that can be used to implement the present application. The directional terms mentioned in the description of the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "top surface", "side surface", "bottom surface", "top wall", "side wall", "bottom wall", "inner side wall", "peripheral side wall", and the like, are only the directions with reference to the additional drawings, and therefore, the directional terms used are for better, clearer illustration and understanding of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In the description of the present application, "connection" and "coupling" are used without specific description, and include direct connection (coupling) and indirect connection (coupling).

[0045] The scroll compressor is a high-efficiency and stable gas compression device, which has the advantages of small size, simple structure, easy maintenance, etc., and can provide high-efficiency and stable gas compression effect. Therefore, it is widely used in the industrial field. For example: air compression field, medical instrument field, refrigeration field, air separation field, oil and gas field, air conditioning field, cold storage and refrigerator field, heat pump field, etc. The scroll compressor is a volumetric compression compressor, and the compression components mainly consist of a dynamic scroll plate and a static scroll plate.

[0046] However, in the scroll compressor provided by the related art, the height of the suction space is changed by adjusting and fixing the position of the static scroll plate axially, so as to achieve the purpose of adjusting the volume of the suction space. This form of variable volume requires moving the static scroll plate, which will affect the meshing state between the dynamic scroll plate and the static scroll plate after moving, causing the static scroll plate to be skewed and causing friction failure, or causing the gap to be large or unevenly distributed, resulting in a decrease in compression efficiency.

[0047] At the same time, in the above-mentioned related art, in order to cooperate with the movement of the static scroll plate, a reset member between the dynamic scroll plate support plate and the dynamic scroll plate surface is used to realize the extension and retraction function. During the extension and retraction process, the deformation of the reset member must be uniform on the entire plane to ensure perfect contact between the dynamic plate support plate and the static scroll plate tooth top. This is difficult to achieve, and the cooperation between the dynamic scroll plate support plate and the static scroll plate tooth top is prone to deviation, which in turn is prone to cause friction and leakage. In order to solve the problems in the above-mentioned related art, a lot of cost is needed to deal with the coaxial problem during movement, the uneven gap problem and the increased leakage point problem, which results in a significant increase in the manufacturing difficulty and cost of the scroll compressor. At the same time, this structure also has the problems of reduced reliability and service life of the scroll compressor.

[0048] In view of the technical problems existing in the above-mentioned related technologies, this application provides a scroll plate assembly, a scroll compressor, and a vehicle. The stationary plate component of the scroll compressor can achieve adjustable compression volume of the suction space without axial movement relative to the moving plate component. This avoids problems such as meshing deviation or friction failure between the moving and stationary plate components caused by moving the stationary plate component. It also prevents fluid leakage during compression due to increased or uneven gaps in the suction space formed by the moving and stationary plate components, thus ensuring the compression efficiency of the scroll compressor. Furthermore, since the stationary plate component can achieve adjustable compression volume of the suction space without axial movement relative to the moving plate component, it avoids coaxiality problems between the moving and stationary plate components that would arise from the need for the stationary plate component to move relative to the moving plate component, thereby reducing the manufacturing difficulty and cost of the scroll compressor. The fact that the stationary plate component does not need axial movement relative to the moving plate component also improves the reliability and service life of the scroll compressor.

[0049] This application provides a vehicle that includes a scroll compressor.

[0050] The scroll compressor provided in this application will be described in detail below with reference to the accompanying drawings.

[0051] Please see Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a first-view assembly structure diagram of a scroll compressor according to an embodiment of this application. Figure 2 This is a second-view assembly structure diagram of a scroll compressor according to an embodiment of this application. Figure 3 yes Figure 2 The scroll compressor shown is a cross-sectional view along the AA direction.

[0052] The scroll compressor 1000 provided in this application includes a scroll plate assembly 100, a housing member 200, a second scroll plate 300, a connecting member 400, and a drive member 500. The housing member 200 forms the outer shell of the scroll compressor 1000. The scroll plate assembly 100, the second scroll plate 300, the connecting member 400, and the drive member 500 are all disposed within the housing member 200. The scroll plate assembly 100 is fixed within the housing member 200, and the second scroll plate 300 is movably disposed within the housing member 200 and cooperates with the scroll plate assembly 100. The connecting member 400 connects the second scroll plate 300 and the drive member 500. The drive member 500 drives the second scroll plate 300 to move via the connecting member 400, so that the second scroll plate 300 and the scroll plate assembly 100 compress fluid to form a compressed fluid. In this embodiment, the scroll plate assembly 100 is a stationary plate assembly, and the second scroll plate 300 is a moving plate.

[0053] The housing component 200 includes a first housing 201, a second housing 202, and a cover plate 203. The first housing 201 is connected between the second housing 202 and the cover plate 203. The first housing 201 is provided with a machine inlet 204, and the second housing 202 is provided with a machine outlet 205. Fluid flows into the scroll compressor 1000 through the machine inlet 204, and the compressed fluid flows out from the machine outlet 205.

[0054] The second scroll plate 300 and the scroll plate assembly 100 are housed within the second housing 202. The second scroll plate 300 and the scroll plate assembly 100 together form an intake space 600, which is used to compress fluid. Fluid flows into the scroll compressor 1000 through the machine inlet 204 and enters the intake space 600. After being compressed in the intake space 600, the fluid flows out from the machine outlet 205.

[0055] The connecting component 400 includes a crankshaft 401, a bearing 402, and a cross slip ring 403. The crankshaft 401 and the bearing 402 are disposed within the first housing 201. The crankshaft 401 is connected between the second scroll plate 300 and the driving component 500. The bearing 402 is sleeved on the crankshaft 401. The cross slip ring 403 is disposed within the second housing 202 and is connected between the crankshaft 401 and the second scroll plate 300.

[0056] The driving component 500 is a driving motor. The driving component 500 includes a motor stator 501 and a motor rotor 502. Both the motor stator 501 and the motor rotor 502 of the driving component 500 are disposed in the first housing 201. The driving component 500 drives the crankshaft 401 to drive the second scroll plate 300 to rotate axially, so that the volume of the air intake space 600 formed by the second scroll plate 300 and the scroll plate assembly 100 changes, thereby compressing the fluid located in the air intake space 600.

[0057] During operation, the scroll compressor 1000 receives fluid through the inlet 204, flows through the drive component 500, and then enters the suction space 600 through the gap between the peripheral wall of the second scroll plate 300 and the inner wall of the second housing 202, as well as the suction port 21. After the second scroll plate 300 and the first scroll plate 20 perform work to change the volume of the suction space 600, the compressed fluid flows out from the exhaust port 24 at the center of the first scroll plate 20. After passing through the exhaust chamber 60 formed between the second housing 202 and the first scroll plate 20, oil-gas separation is achieved, and finally the fluid is discharged from the outlet 205.

[0058] Please see Figures 3 to 5 , Figure 4 This is a partial cross-sectional view of a scroll compressor in the off state according to an embodiment of this application. Figure 5This is a partial cross-sectional view of a scroll compressor in the open state, provided in an embodiment of this application.

[0059] This application provides a scroll plate assembly 100, which includes a first scroll plate 20 and a switching component 40.

[0060] In the scroll compressor 1000 provided in this application, a first scroll plate 20 and a second scroll plate 300 enclose a suction space 600. A suction hole 21 is provided on the first scroll plate 20, and the suction hole 21 communicates with the suction space 600. A switching component 40 is movably connected to the first scroll plate 20, and the switching component 40 is used to open or close the suction hole 21. Thus, the switching component 40 can pass through the suction hole 21 and form an adjustable-diameter air inlet with the inner wall of the suction hole 21, thereby achieving adjustable compression volume of the suction space 600.

[0061] The scroll plate assembly 100 provided in this application, when applied in a scroll compressor 1000, is movably connected to the first scroll plate 20 via a switching component 40. The switching component 40 is used to open or close the suction port 21, so that the switching component 40 is movably disposed within the suction port 21. When the switching component 40 moves within the suction port 21, the opening or closing of the suction port 21 can be adjusted to control the flow rate of fluid flowing into the suction space 600, thereby achieving adjustment of the compression volume of the suction space 600. Therefore, the scroll assembly 100 provided in this application, when applied to a scroll compressor 1000, allows for adjustable compression volume of the suction space 600 without axial movement of the first scroll 20 relative to the second scroll 300. This avoids meshing deviations or frictional failures between the second scroll 300 and the first scroll 20 caused by moving the first scroll 20. It also prevents fluid leakage during compression due to increased or uneven gaps in the suction space 600 formed by the second scroll 300 and the first scroll 20, thus ensuring the compression efficiency of the scroll compressor 1000. Furthermore, since the first scroll 20 does not need axial movement relative to the second scroll 300 to achieve adjustable compression volume of the suction space 600, it avoids coaxiality issues between the second scroll 300 and the first scroll 20 caused by the need for the first scroll 20 to move relative to the second scroll 300, thereby reducing the manufacturing difficulty and cost of the scroll compressor 1000. Moreover, the first scroll plate 20 does not need to move axially relative to the second scroll plate 300, which can improve the reliability and service life of the scroll compressor 1000.

[0062] It is understood that the movement of the switch component 40 can be driven by, but is not limited to, motor drive or electromagnetic drive. When driven by a motor, the rotation needs to be converted into linear motion through a transmission structure. When driven by an electromagnetic drive, linear motion is achieved through magnetic attraction or repulsion. This application does not limit this.

[0063] Please see Figures 3 to 5 In some embodiments, at least one of the first scroll plate 20 and the second scroll plate 300 is provided with an intake port 21 communicating with the intake space 600. A switching component 40 is installed in the intake port 21, and the switching component 40 is used to form an adjustable-diameter air inlet with the inner wall of the intake port 21, so that the switching component 40 can open or close the intake port 21, thereby realizing the adjustable compression volume of the intake space 600. Fluid flows into the scroll compressor 1000 through the machine inlet 204 and enters the intake space 600 through the intake port 21. After being compressed in the intake space 600, the fluid flows out from the machine outlet 205. In other words, the intake port 21 can be provided in either the first scroll plate 20 or the second scroll plate 300, or both the first scroll plate 20 and the second scroll plate 300 can be provided with intake ports 21, and the intake port 21 communicates with the intake space 600 formed by the first scroll plate 20 and the second scroll plate 300.

[0064] Please see Figures 3 to 5 In this embodiment, the first scroll plate 20 is a stationary scroll plate, and the second scroll plate 300 is a moving scroll plate, as an example for illustration. It is understood that in some other embodiments, the first scroll plate 20 can be a moving scroll plate, and the second scroll plate 300 can be a stationary scroll plate, and this application does not limit this.

[0065] Please see Figures 3 to 5 In one embodiment, the positions of the suction port 21 and the switching component 40 are at least partially overlapped along the axial direction of the first scroll plate 20. By ensuring that the suction port 21 and the switching component 40 are at least partially overlapped along the axial direction of the first scroll plate 20, the area of ​​the overlap between the switching component 40 and the suction port 21 can be adjusted during the movement of the switching component 40, thereby controlling the flow rate of fluid into the suction space 600 and thus adjusting the compression volume of the suction space 600.

[0066] Furthermore, the switching component 40 is movable along the axial direction of the first scroll plate 20. Because the switching component 40 is movable along the axial direction of the first scroll plate 20, and the suction port 21 overlaps with the switching component 40 at least partially along the axial direction of the first scroll plate 20, the area of ​​the overlapping portion between the switching component 40 and the suction port 21 can be adjusted during the axial movement of the switching component 40 along the first scroll plate 20. This allows for more precise control of the flow rate of fluid into the suction space 600, thereby improving the accuracy of adjusting the compression volume of the suction space 600.

[0067] please Figures 3 to 5 In the scroll plate assembly 100 provided in this embodiment, the intake port 21 is disposed on the first scroll plate 20, a portion of the switching components 40 is disposed in the exhaust chamber 60 on the side of the first scroll plate 20 opposite to the second scroll plate 300, and another portion of the switching components 40 is movably disposed in the intake port 21. By adjusting the insertion depth of the portion of the switching components 40 located in the intake port 21, the size of the opening formed by the portion of the switching components 40 located in the intake port 21 and the inner wall of the intake port 21 can be adjusted, thereby realizing the adjustable compression volume of the intake space 600.

[0068] In the scroll disk assembly 100 provided in this embodiment, the first scroll disk 20 includes a first disk body 22 and a first scroll tooth 23. The first scroll tooth 23 is disposed on the side of the first disk body 22 facing the second scroll disk 300, and the first scroll tooth 23 is spiral-shaped, extending spirally from the center of the first disk body 22 to the periphery. An air intake hole 21 is disposed on the first disk body 22 and extends to the first scroll tooth 23, that is, the air intake hole 21 penetrates the first disk body 22 and at least part of the first scroll tooth 23. The opening of the air intake hole 21 on the side of the first scroll disk 20 facing the second scroll disk 300 is completely located on the first scroll tooth 23, and the opening of the air intake hole 21 on the side of the first scroll disk 20 facing the second scroll disk 300 is located on the first scroll tooth 23 near the first disk body 22. The first scroll tooth 23, the first disc body 22, and the second scroll disc 300 enclose and form the suction space 600 of the scroll compressor 1000, and the suction port 21 communicates with the suction space 600. Part of the switching components 40 are disposed on the side of the first disc body 22 opposite to the first scroll tooth 23, and another part of the switching components 40 are movably disposed along the axial direction of the first disc body 22, so that the other part of the switching components 40 can open or close the suction port 21, thereby adjusting the size of the opening formed by the portion of the switching component 40 located inside the suction port 21 and the inner wall of the suction port 21, thus enabling the adjustment of the compression volume of the suction space 600.

[0069] Please see Figures 3 to 5In one embodiment, the air intake hole 21 is provided on the side of the first disk body 22 facing away from the second scroll disk 300, corresponding to the first scroll tooth 23. That is, the air intake hole 21 is a hole cut on the first disk body 22 and the first scroll tooth 23, and one wall of the air intake hole 21 is coplanar with one side wall of the first scroll tooth 23, so that the opening of the air intake hole 21 on the side of the first scroll disk 20 facing the second scroll disk 300 is completely located on the first scroll tooth 23.

[0070] Specifically, in the scroll plate assembly provided in this embodiment, the length of the suction port 21 in the axial direction perpendicular to the first scroll plate 20 decreases from the first plate body 22 toward the first scroll tooth 23. In other words, the suction port 21 is wedge-shaped, and the switching component 40 includes a wedge block, which is movably disposed within the suction port 21. The driving component 43 is used to control the insertion depth of the wedge block within the suction port 21. When the wedge block is fully disposed within the suction port 21, the surface of the wedge block located in the suction port 21 is coplanar with the tooth surface of the first scroll tooth 23. That is, when the wedge block is fully disposed within the suction port 21, the surface of the wedge block located in the suction port 21 at the opening of the first scroll tooth is coplanar with the tooth surface of the first scroll tooth 23. Since one side end face of the wedge block will completely restore the tooth surface shape of the cut first scroll tooth 23, it will not affect the compression volume of the suction space 600 and will not bring additional clearance volume to the scroll compressor 1000. Therefore, when the wedge block is fully positioned within the intake port 21, the volumetric efficiency loss of the intake space 600 of the scroll compressor 1000 is almost zero. Furthermore, the assembly between the switching component 40 and the first scroll plate 20 is simple, and the sealing between them is also simple, minimizing the likelihood of additional leakage. This results in a smaller reduction in the isentropic efficiency of the scroll compressor 1000 formed by the scroll plate assembly 100. Simultaneously, because the variable capacity control section of the scroll compressor 1000 formed by the scroll plate assembly 100 provided in this embodiment has a simple structure and assembly, the scroll compressor 1000 has high reliability. Moreover, since the structure of the variable capacity control section is stationary, it does not increase the additional energy consumption of the drive component 500, resulting in high energy utilization.

[0071] Please see Figures 3 to 7 , Figure 6 This is a cross-sectional view of a switch component closing the intake port according to an embodiment of this application. Figure 7 This is a cross-sectional view of a switch component opening the intake port according to an embodiment of this application.

[0072] The scroll plate assembly 100 provided in this embodiment has an intake port 21 including a first opening 211 and a second opening 212. The first opening 211 is located on the side of the first plate body 22 opposite to the first scroll tooth 23, and the second opening 212 is located on the first scroll tooth 23. The inner wall of the intake port 21 includes a first inclined surface 213. The switching component 40 includes a connected second inclined surface 41 and a connecting surface 42. When the first inclined surface 213 is in contact with the second inclined surface 41, the switching component 40 closes the first opening 211 and the second opening 212. The connecting surface 42 is located at the second opening 212 and partially coplanar with the first scroll tooth 23. By closing the first opening 211 and the second opening 212 with the switching component 40, and with the connecting surface 42 located at the second opening 212 and partially coplanar with the first scroll tooth 23, the compression volume of the intake space 600 is not affected, and no additional clearance volume is introduced to the scroll compressor 1000 formed by the scroll plate assembly 100. Therefore, when the switching component 40 closes the intake port 21, the volumetric efficiency loss of the intake space 600 of the scroll compressor 1000 is almost zero.

[0073] Please see Figures 3 to 10 , Figure 8 This is a third-person view assembly structure diagram of a scroll compressor according to an embodiment of this application. Figure 9 yes Figure 8 The cross-sectional view of the scroll compressor shown is along the BB direction. Figure 10 yes Figure 8 The scroll compressor shown is a cross-sectional view along the CC direction.

[0074] In the scroll disk assembly 100 provided in this embodiment, the first disk body 22 includes a first part 221 and a second part 222, which are stacked. A first scroll tooth 23 is connected to the side of the first part 221 opposite to the second part 222, and the first scroll tooth 23 extends spirally from the center of the first part 221 to the periphery. The first part 221 and the second part 222 are fixedly stacked by bolts. To ensure the sealing performance of the stack between the first part 221 and the second part 222, a sealing ring is provided between the first part 221 and the second part 222 to improve the sealing performance of the stack between the first part 221 and the second part 222.

[0075] In the scroll compressor 1000 formed by the scroll disk assembly 100 provided in this embodiment, the second scroll disk 300 includes a second disk body 31 and a second scroll tooth 32. The second scroll tooth 32 is spiral-shaped and extends spirally from the center of the second disk body 31 to the periphery. The second disk body 31 and the first part 221 are stacked and spaced apart from each other. The end of the first scroll tooth 23 facing away from the first part 221 contacts the second disk body 31, and the end of the second scroll tooth 32 facing away from the second disk body 31 contacts the first part 221. The first scroll tooth 23 and the second scroll tooth 32 mesh with each other, and the first scroll tooth 23 and the second scroll tooth 32 enclose and form an air intake space 600.

[0076] A first channel 221a is provided on the side of the first part 221 facing the second part 222, and the first channel 221a is recessed on the side of the first part 221 facing away from the second part 222. An air inlet 221b is provided on the peripheral sidewall of the first part 221, and the air inlet 221b is recessed towards the center of the first part 221. The first channel 221a communicates with the air inlet 221b. An air intake hole 21 penetrates the first part 221 and is at least partially connected to the first vortex tooth 23 of the first part 221. The air intake hole 21 communicates with the first channel 221a and the air intake space 600.

[0077] The first part 221 has a connected first channel 221a and an air inlet 221b. The first channel 221a is annularly arranged on the surface of the first part 221 facing the second part 222. The air inlet 221b is located on the peripheral sidewall of the first part 221 and penetrates the first part 221 axially. This allows the fluid flowing into the machine inlet 204 to sequentially pass through the drive member 500, the gap between the second scroll plate 300 and the inner sidewall of the housing member 200, the air inlet 221b, the first channel 221a, and the suction hole 21 into the suction space 600. The fluid is compressed under the action of the second scroll teeth 32 and the first scroll teeth 23. The compressed fluid sequentially passes through the exhaust port 24 at the center of the first scroll plate 20, the exhaust chamber 60 formed between the second housing 202 and the first scroll plate 20, and finally exits from the machine outlet 205 (the fluid flow direction is as follows). Figure 9 and Figure 10 (As indicated by the middle arrow).

[0078] Please see Figures 9 to 17 , Figure 11 This is an assembly structure diagram of a first scroll disk and a second scroll disk provided in an embodiment of this application. Figure 12 This application provides an embodiment of a structure for assembling a first scroll disk with a switching component. Figure 1 , Figure 13 This application provides an embodiment of a structure for assembling a first scroll disk with a switching component.Figure 2 , Figure 14 This is a structural diagram of a switching component provided in an embodiment of this application. Figure 15 This is a first-view assembly structure diagram of a scroll disk assembly according to an embodiment of this application. Figure 16 This is a second-view assembly structure diagram of a scroll disk assembly according to an embodiment of this application. Figure 17 yes Figure 11 The assembly structure of the first and second scroll disks shown is a cross-sectional view along the DD direction.

[0079] The scroll plate assembly 100 provided in this embodiment has multiple suction ports 21. In the scroll compressor 1000 formed by the scroll plate assembly 100, the first scroll plate 20 and the second scroll plate 300 surround and form multiple suction spaces 600, and at least one suction port 21 communicates with one suction space 600. The multiple suction ports 21 and multiple suction spaces 600, with at least one suction port 21 communicating with one suction space 600, ensure that each suction space 600 can compress fluid, which is beneficial for improving the compression efficiency of the scroll compressor 1000.

[0080] In the scroll compressor 1000 formed by the scroll disk assembly 100 provided in this embodiment, there are multiple switching components 40, each of which cooperates with a corresponding intake port 21. Each intake space 600 is connected to at least one intake port 21, and each intake port 21 corresponds to one switching component 40, so that the compression volume of each intake space 600 of the scroll compressor 1000 is adjustable, thereby facilitating the adjustment of the overall compression volume of the scroll compressor 1000.

[0081] Please see Figures 9 to 17 In some embodiments, each air intake space 600 is connected to a plurality of air intake holes 21, and the number of air intake holes 21 connected to each air intake space 600 is equal. For example, the number of air intake holes 21 connected to each air intake space 600 is 2, or the number of air intake holes 21 connected to each air intake space 600 is 3, etc., and this application does not limit this.

[0082] Please see Figures 9 to 17 In some embodiments, an air intake hole 21 is provided on the first scroll plate 20 every 90° so that the multiple air intake holes 21 are evenly distributed on the first plate body 22 and the first scroll teeth 23. By periodically and evenly distributing the multiple air intake holes 21 on the first plate body 22 and the first scroll teeth 23, the scroll compressor 1000 becomes more stable during the compression of fluid, which helps to reduce the noise generated during the operation of the scroll compressor 1000.

[0083] It is important to understand that the multiple switching components 40 corresponding to the multiple suction holes 21 are translational valves. The movement of the switching components 40 allows for an adjustable diameter of the opening formed by the switching component 40 and the inner wall of the suction hole 21, thereby adjusting the compression volume of the suction space 600. When the switching component 40 is fully closed, the second inclined surface 41 of the switching component 40 abuts against the first inclined surface 213 of the corresponding suction hole 21, completely closing the suction hole 21. Furthermore, the connecting surface 42 of the switching component 40 engages with the tooth surface of the first vortex tooth 23, allowing the first vortex tooth 23 to completely return to its original tooth surface shape. This ensures that the switching component 40 and the wall of the suction hole 21 are completely fitted together, preventing leakage from the suction space 600.

[0084] Please see Figures 9 to 17 Specifically, the switch component 40 includes a drive member 43 and an adjusting member 44. The drive member 43 and the adjusting member 44 are connected and configured. The drive member 43 controls the depth to which the adjusting member 44 extends into the air intake hole 21. The drive member 43 is located on the side of the second part 222 opposite to the first part 222. The adjusting member 44 is movably inserted through the second part 222 and movably disposed within the first channel 221a communicating with the air intake hole 21. One end of the drive member 43 is located on the side of the second part 222 opposite to the first part 221, that is, one end of the drive member 43 is disposed in the exhaust chamber 60 formed between the second part 222 and the second housing 202. The other end of the drive member 43 is inserted through the second part 222 and fixedly connected to the second part 222. The adjusting member 44 is movably connected to the side of the drive member 43 located on the second part 222 facing the first part 221. The adjusting member 44 is movably received within the first channel 221a and is movably inserted into the air intake hole 21. To ensure a tight seal between the drive component 43 and the second part 222, a sealing element is provided between them to improve the sealing performance. The adjusting element 44 is the aforementioned wedge-shaped block, which is movably disposed within the suction hole 21. This allows the diameter formed by the adjusting element 44 of the switching component 40 and the inner wall of the suction hole 21 to be adjustable, thereby adjusting the compression volume of the suction space 600. Consequently, the assembly of the switching component 40 and the first scroll plate 20 is simple, and the sealing performance is good.

[0085] Please see Figures 9 to 17 In one embodiment, the switch component 40 further includes a reset member 45 connected between the drive member 43 and the adjustment member 44. The reset member 45 is used to remove the adjustment member 44 from the air intake hole 21 after the adjustment member 44 extends into the air intake hole 21, so that the switch component 40 can open or close the air intake hole 21.

[0086] Specifically, the switching component 40 uses electromagnetic drive to cause the driving component 43 to drive the adjusting component 44 to move axially along the first scroll plate 20, thereby opening or closing the intake port 21. The reset component 45 is an elastic component, used to elastically connect the driving component 43 and the adjusting component 44.

[0087] Please see Figures 9 to 17 In the vortex disk assembly 100 provided in this embodiment, the first vortex tooth 23 includes an inner tooth surface 231 and an outer tooth surface 232, which are arranged opposite to each other along the radial direction of the first vortex tooth 23. The first vortex tooth 23 also includes a tooth head 233 and a tooth tail 234. The tooth head 233 is located at the exhaust port 24 near the center of the first part 221. The first vortex tooth 23 extends spirally from the inside to the outside, and the tooth tail 234 is located near the periphery of the first part 221. In the two symmetrically arranged suction spaces 600, the opening of the suction hole 21 on one suction space 600 is located on the inner tooth surface 231, and the opening of the suction hole 21 on the other suction space 600 is located on the outer tooth surface 232.

[0088] Specifically, such as Figure 15 As shown, the suction space 600 includes a first cavity 601, a second cavity 602, a third cavity 603, and a fourth cavity 604 arranged sequentially. The first cavity 601 and the second cavity 602 are symmetrically arranged, as are the third cavity 603 and the fourth cavity 604. A suction hole 21 is provided on the outer tooth surface 232 of the first spiral tooth 23 forming the first cavity 601, and a suction hole 21 is provided on the inner tooth surface 231 of the first spiral tooth 23 forming the second cavity 602. The suction holes 21 connecting the first cavity 601 and the second cavity 602 are spaced 180° apart along the spiral direction on the first spiral tooth 23, meaning they are arranged opposite each other in the radial direction of the first spiral tooth 23. Two spaced-apart suction holes 21 are provided on the outer tooth surface 232 of the first spiral tooth 23 forming the third cavity 603, and two spaced-apart suction holes 21 are provided on the inner tooth surface 231 of the first spiral tooth 23 forming the fourth cavity 604. Specifically, one suction hole 21 connecting to the third cavity 603 is spaced 90° apart in a spiral direction from the suction hole 21 connecting to the second cavity 602, and the other suction hole 21 connecting to the third cavity 603 is spaced 180° apart in a spiral direction from the suction hole 21 connecting to the second cavity 602. Similarly, one suction hole 21 connecting to the fourth cavity 604 is spaced 90° apart in a spiral direction from the other suction hole 21 connecting to the third cavity 603, and the other suction hole 21 connecting to the fourth cavity 604 is spaced 180° apart in a spiral direction from the suction hole 21 connecting to the third cavity 603.

[0089] In other words, starting from the tail 234 of the first vortex tooth 23, an air intake hole 21 is provided at the bottom of the tooth surface of the first vortex tooth 23 every 90°. To ensure a nearly symmetrical air intake state in each symmetrical closed air intake space 600, the opening position of the air intake hole 21 needs to be changed every 180° in each pair of symmetrically arranged closed air intake spaces 600, so that the opening positions of the air intake hole 21 are respectively distributed on the inner tooth surface 231 or the outer tooth surface 232 of the first vortex tooth 23. From the tail 234 to the head 233 of the first vortex tooth 23, if the openings of the first two air intake holes 21 are set on the inner tooth surface 231 of the first vortex tooth 23, then the openings of the next two air intake holes 21 need to be set on the outer tooth surface 232 of the first vortex tooth 23, and so on.

[0090] It should be understood that the designer can determine the position of the last intake port 21 on the first scroll tooth 23 according to the required range of volume variation. Since the central intake space 600 of the scroll compressor 1000 is connected to the exhaust chamber 60 and has virtually no compression work capacity, the intake port 21 can only be located in the intake space 600 immediately adjacent to the central intake space 600 (i.e., the first chamber 601 and the second chamber 602). Depending on different volume variation requirements, the interval between the intake ports 21 along the spiral direction can be set to other values ​​less than or greater than 90°, and the width of the intake ports 21 can also be set to different values; this application does not impose any restrictions on this.

[0091] Please see Figures 9 to 17 In some embodiments, the first scroll tooth 23 includes an inner tooth surface 231 and an outer tooth surface 232, which are arranged radially opposite to each other along the first scroll tooth 23. Each intake hole 21 has an opening on the inner tooth surface 231, or each intake hole 21 has an opening on the outer tooth surface 232; this application does not limit this. By setting the opening positions of the intake holes 21 on the first scroll tooth 23 to be all on the inner tooth surface 231 or all on the outer tooth surface 232, instead of changing the opening direction every 180° along the spiral direction, it is possible to ensure that intake and volume change always occur only in one of the pair of intake spaces 600, while the other intake space 600 remains under normal compression. This improves the symmetry of the compression parameters within the cavity when the two symmetrical intake spaces 600 move to the exhaust port 24 of the first scroll disk 20, optimizes exhaust performance, and thus achieves noise reduction in the scroll compressor 1000 during operation.

[0092] Please see Figures 4 to 7 , Figure 4 and Figure 5 The comparison shows the switch component 40 in both fully closed and partially open states. Figure 4 and Figure 6When the corresponding switch component 40 is completely shut down, the scroll compressor 1000 does not change capacity. Figure 5 and Figure 7 This corresponds to the situation where the opening portion of the switch component 40 changes capacity.

[0093] It is important to understand that, without changing the geometry and distribution density of the intake ports 21, the scroll compressor 1000 can achieve different degrees of capacity variation by adjusting the opening and closing status and degree of the switching components 40. When the scroll compressor 1000 needs to vary its capacity, the opening and closing status of these switching components 40 can be rationally designed according to the target displacement. Generally, as the displacement of the scroll compressor 1000 changes from large to small, the switching components 40 at the intake ports 21 of the 1st, 2nd, ..., Nth pairs of intake spaces 600 can be opened sequentially (starting from the tail 234 and ending at the head 233). Typically, for a target displacement, only one pair of intake ports 21 in symmetrical positions of the intake spaces 600 can be opened (the intake ports 21 in other positions of the intake spaces 600 are closed). If necessary, several pairs of intake ports 21 in adjacent intake spaces 600 can be opened simultaneously. Many types of capacity variation can be derived from this, based on the target requirements, to achieve different capacity variation effects of the scroll compressor 1000.

[0094] This application enables the scroll compressor 1000 to change its capacity within a certain range from 0 by setting several pairs of symmetrical suction holes 21 and switching components 40. By designing different switching states and opening sizes of the switching components 40, and arranging suction holes 21 of different numbers and widths, the scroll compressor 1000 can achieve continuous capacity change in different states.

[0095] In some other embodiments, the suction port 21 of the scroll compressor 1000 may be disposed on the second scroll plate 300, and the switching component 40 may be disposed on the side of the second scroll plate 300 away from the first scroll plate 20, and the switching component 40 may be movably disposed within the suction port 21.

[0096] The second scroll plate 300 includes a second plate body 31 and second scroll teeth 32, with the second scroll teeth 32 disposed on the side of the second plate body 31 facing the first scroll plate 20. An air intake hole 21 penetrates the second plate body 31 and at least a portion of the second scroll teeth 32, with the opening of the air intake hole 21 on the side of the second scroll plate 300 facing the first scroll plate 20 completely located on the second scroll teeth 32.

[0097] In the scroll compressor 1000 provided in this embodiment, the structure of the suction port 21 and the switching component 40 arranged on the first scroll plate 20 is changed to be arranged on the second scroll plate 300. The structure of the suction port 21 and the switching component 40 is similar to that of the suction port 21 and the switching component 40 arranged on the first scroll plate 20, and will not be described in detail here.

[0098] The channel connecting the air intake hole 21 can be set on the side wall of the back pressure cavity of the second disc body 31 away from the first disc body 22, or the channel connecting the air intake hole 21 can be set on the upper annular surface of the back pressure cavity, or the channel connecting the air intake hole 21 can be set at both of the above locations.

[0099] An air intake hole 21 adjacent to the air intake space 600 is periodically positioned at the bottom of the second vortex tooth 32, and the tooth surface of the second vortex tooth 32 is opened, so that the opening of the air intake hole 21 is located on the second vortex tooth 32. Part of the switching component 40 is disposed in the back pressure cavity of the second disk body 31 away from the first disk body 22, while another part of the switching component 40 extends movably into the air intake hole 21.

[0100] If the second scroll plate 300 does not require axial dynamic adjustment (i.e., the second scroll plate 300 is axially fixed), then no additional channel similar to the first channel 221a mentioned above needs to be provided on the second scroll plate 300. After the fluid enters through the channel connected to the suction port 21, it enters directly into the suction port 21 through the back pressure chamber of the second plate body 31 away from the first plate body 22, and then reaches the suction space 600.

[0101] If the back pressure cavity of the second disk body 31, which is away from the first disk body 22, is to be used for axial dynamic adjustment of the second scroll disk 300, then a channel similar to the above-mentioned air inlet 221b needs to be set in the second scroll disk 300. In this case, the channel connecting the air intake hole 21 needs to be set on the outer wall surface of the second disk body 31.

[0102] The above are some embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A scroll disk assembly (100), characterized in that, The scroll disk assembly (100) includes: A first scroll plate (20) is provided, which, together with a second scroll plate (300), forms an air intake space (600). The first scroll plate (20) is provided with an air intake hole (21), which communicates with the air intake space (600). A switch component (40) is movably connected to the first scroll plate (20), and the switch component (40) is used to open or close the air intake hole (21).

2. The scroll disk assembly (100) as described in claim 1, characterized in that, Along the axial direction of the first scroll plate (20), the position of the air intake (21) and the position of the switch component (40) at least partially overlap.

3. The scroll disk assembly (100) as described in claim 2, characterized in that, The switching component (40) is movable along the axial direction of the first scroll plate (20).

4. The scroll disk assembly (100) as described in claim 3, characterized in that, The first scroll plate (20) includes a first plate body (22) and a first scroll tooth (23) protruding from one side of the first plate body (22). At least a portion of the switch component (40) is located on the side of the first plate body (22) away from the first scroll tooth (23). The first scroll tooth (23) and the first plate body (22) are used to form the air intake space (600) with the second scroll plate (300). The air intake hole (21) is provided on the first plate body (22) and extends to the first scroll tooth (23).

5. The scroll disk assembly (100) as described in claim 4, characterized in that, The length of the air intake hole (21) in the axial direction perpendicular to the first vortex disk (20) decreases from the first disk body (22) toward the first vortex tooth (23).

6. The scroll disk assembly (100) as described in claim 4, characterized in that, The air intake hole (21) includes a first opening (211) and a second opening (212). The first opening (211) is located on the side of the first disc body (22) away from the first vortex tooth (23), and the second opening (212) is located on the first vortex tooth (23). The inner wall of the air intake hole (21) includes a first inclined surface (213). The switching component (40) includes a second inclined surface (41) and a connecting surface (42) connected together. When the first inclined surface (213) is in contact with the second inclined surface (41), the switching component (40) closes the first opening (211) and the second opening (212). The connecting surface (42) is located in the second opening (212) and is partially coplanar with the first vortex tooth (23).

7. The scroll disk assembly (100) as described in claim 4, characterized in that, The number of air intake holes (21) is multiple, and the number of air intake spaces (600) formed by the first vortex disk (20) and the second vortex disk (300) is multiple, and at least one of the air intake holes (21) is used to communicate with a corresponding air intake space (600).

8. The scroll disk assembly (100) as described in claim 4, characterized in that, Along the extending direction of the first vortex tooth (23), an air intake hole (21) is provided on the first vortex tooth (23) at 90° intervals.

9. The scroll disk assembly (100) as claimed in claim 4, characterized in that, The first vortex tooth (23) includes an inner tooth surface (231) and an outer tooth surface (232). The inner tooth surface (231) and the outer tooth surface (232) are arranged opposite to each other along the radial direction of the first vortex tooth (23), and the inner tooth surface (231) is arranged towards the center of the first vortex tooth (23). In the two symmetrically arranged air intake spaces (600) enclosed by the first vortex disk (20) and the second vortex disk (300), the opening of the air intake hole (21) on one air intake space (600) is arranged on the inner tooth surface (231), and the opening of the air intake hole (21) on the other air intake space (600) is arranged on the outer tooth surface (232).

10. The scroll disk assembly (100) as claimed in claim 4, characterized in that, The first disk body (22) includes a first part (221) and a second part (222), the first part (221) and the second part (222) are stacked, and the first part (221) is connected to the first vortex tooth (23); The first part (221) has a first channel (221a) on the side facing the second part (222), and the air intake hole (21) is located on the inner wall of the first channel (221a); An air inlet (221b) is provided on the peripheral sidewall of the first part (221), and the first channel (221a) is connected to the air inlet (221b).

11. The scroll disk assembly (100) as claimed in claim 1, characterized in that, The switching component (40) includes a driving member (43) and an adjusting member (44). The driving member (43) is connected to the adjusting member (44). The driving member (43) is used to drive the adjusting member (44) to extend into or out of the air intake hole (21) to a certain depth. The adjusting member (44) is movably inserted into the air intake hole (21).

12. The scroll disk assembly (100) as claimed in claim 11, characterized in that, The switching component (40) further includes a reset component (45), which is connected between the driving component (43) and the adjusting component (44).

13. The scroll disk assembly (100) as claimed in any one of claims 1 to 12, characterized in that, The first vortex disk (20) is a static vortex disk.

14. A scroll compressor (1000), characterized in that, include: The scroll disk assembly (100) and the second scroll disk (300) as described in any one of claims 1 to 13, wherein the second scroll disk (300) and the first scroll disk (20) form the air intake space (600).

15. A vehicle, characterized in that, include: The scroll compressor (1000) as described in claim 14.

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