Double-type linear scroll structure and scroll compressor

Abstract

The present invention relates to the technical field of scroll compressors, and in particular, to a double-profile movable scroll structure and a scroll compressor. The double-profile movable scroll structure is used to compress a fluid, and includes a base plate and two movable scroll profiles; at least one penetrating drive hole is provided on the base plate; the two scroll profiles have the same shape and size, and the two movable scroll profiles are symmetrically arranged on both sides of the axial direction of the base plate, so that the driving torque acting on the drive hole is equal to the compression torque of the fluid acting on the movable scroll profile. The double-profile movable scroll structure can balance the driving torque and the compression torque on the movable scroll, so as to overcome the overturning torque borne by the movable scroll, thereby improving the technical problem in the prior art that the movable scroll is subjected to a large overturning torque, which causes the movable scroll to flip and overturn, and then causes severe local friction on the side and bottom surfaces of the movable scroll profile, resulting in increased friction power consumption and reduced performance of the entire machine.

Description

Technical Field

[0001] The present invention relates to the technical field of scroll compressors, and in particular to a double-type linear movable scroll structure and a scroll compressor. Background Art

[0002] The structure of the movable scroll of the existing scroll compressor includes a base plate, a profile, an anti-rotation ring mounting hole, and a bearing mounting hole; wherein the profile is located on one side of the base plate, and the anti-rotation ring mounting hole and the bearing mounting hole are located on the other side of the base plate. When the compressor is working, the driving force acting on the movable scroll bearing mounting hole drives the movable scroll to make a circular translation; the force acting on the movable scroll anti-rotation ring mounting hole prevents the movable scroll from rotating; a closed working chamber is formed by the meshing of the movable scroll profile and the static scroll profile, and as the volume of the closed working chamber gradually decreases, the function of compressing the refrigerant in the closed working chamber is realized.

[0003] The existing scroll compressor movable scroll structure has the following problems:

[0004] 1. The existence of the bearing mounting hole and the anti-rotation ring mounting hole results in that only one side of the movable scroll base plate can be arranged with the profile line, which is not conducive to the spatial arrangement of the profile line.

[0005] 2. The driving force acting on the mounting hole of the movable scroll bearing and the refrigerant reaction force (i.e., compression torque) acting on the movable scroll profile are not on the same straight line, causing the movable scroll to be subjected to a large overturning torque, resulting in the movable scroll flipping and overturning. The side and bottom surfaces of the movable scroll profile have severe local friction, which increases friction power consumption and reduces the performance of the entire machine. Summary of the invention

[0006] The objects of the present invention include, for example, providing a double-profile movable scroll structure and a scroll compressor, which are capable of balancing the driving torque and the compression torque on the movable scroll so as to overcome the overturning torque borne by the movable scroll, thereby improving the technical problem in the prior art that the movable scroll is borne a large overturning torque, which causes the movable scroll to flip and overturn, thereby causing severe local friction on the side and bottom surfaces of the movable scroll profile, resulting in increased friction power consumption and reduced performance of the entire machine.

[0007] The embodiments of the present invention can be implemented as follows:

[0008] In a first aspect, the present invention provides a double-type linear scroll structure for compressing a fluid, comprising:

[0009] Base plate and two moving vortex profiles;

[0010] The substrate is provided with at least one penetrating driving hole;

[0011] The two vortex lines have the same shape and size, and the two moving vortex lines are symmetrically arranged on both sides of the axial direction of the substrate so that the driving torque acting on the driving hole is equal to the compression torque of the fluid acting on the moving vortex line.

[0012] The double-profile movable scroll structure of this scheme is provided with two movable scroll profiles of the same shape and size on both sides of the axial direction of the substrate, so that the compression torque of the compressed fluid (such as refrigerant) acting on the movable scroll profile is evenly distributed on both sides of the axial direction of the substrate. That is, both sides of the axial direction of the substrate have two identical compression torques extending in the radial direction of the substrate, and the two compression torques have the same magnitude, direction, and distance from the substrate. The driving hole penetrates the substrate, so that the driving torque acting on the driving hole can be located at the center position of the axial direction of the substrate.

[0013] Compared with the prior art, in which only one side of the substrate is provided with a profile line in the axial direction, resulting in the compression torque being located at a position deviated from the center of the substrate in the axial direction, the bearing mounting hole for applying the driving force is located at the other side of the substrate away from the profile line, resulting in the driving torque being located at the other side of the substrate deviated from the center in the axial direction. That is, the compression torque and the driving torque in the prior art are respectively located at the two sides of the axial direction of the substrate, so that the compression torque and the driving torque are not in the same straight line, thereby generating a tipping torque, causing the movable scroll to flip and overturn, resulting in the technical problem that the friction power consumption of the movable scroll is increased and the performance of the whole machine is reduced.

[0014] The two compression torques of this solution form a resultant torque located at the center of the substrate axis direction, and the driving torque is also located at the center of the substrate axis direction, and the resultant torque is the same in magnitude and opposite in direction to the driving torque. That is, the compression torque and the driving torque finally achieve a balance along the radial direction of the substrate, so that there is no overturning torque on the movable scroll, thus ensuring that the movable scroll does not flip over, achieving stable operation, reducing operating friction and power consumption, and improving the performance of the entire machine.

[0015] In an optional embodiment, the driving hole is located at an edge of the substrate away from the moving vortex profile.

[0016] In an optional embodiment, when the number of the driving holes is greater than 2, the plurality of driving holes are evenly distributed circumferentially on the substrate.

[0017] In an optional embodiment, the double-type linear movable scroll structure further includes a plurality of anti-rotation holes penetratingly provided on the base plate, and the anti-rotation holes are used to cooperate with the anti-rotation pins on the fixed scroll.

[0018] In an optional embodiment, the plurality of anti-rotation holes are all located at an edge of the substrate away from the moving vortex profile.

[0019] In an optional embodiment, the plurality of anti-rotation holes are evenly distributed circumferentially on the substrate.

[0020] In an optional embodiment, along the circumferential direction of the substrate, the driving hole is located between two adjacent anti-rotation holes.

[0021] In an optional embodiment, the double-type linear movable scroll structure further includes a plurality of protrusions; the protrusions are arranged on the edge of the base plate, and the anti-rotation holes and the driving holes are both arranged on the protrusions;

[0022] The height of the protrusion is equal to the sum of the axial thickness of the base plate and the axial thickness of the two movable vortex profiles.

[0023] In an optional embodiment, along the circumferential direction of the substrate, a peripheral wall of the substrate between adjacent protrusions forms a concave surface, and the concave surface is concave toward the center of the substrate.

[0024] In a second aspect, the present invention provides a scroll compressor, comprising a double-type linear movable scroll structure according to any one of the aforementioned embodiments.

[0025] The scroll compressor includes the above-mentioned double-line movable scroll structure, and thus has all the beneficial effects of the double-line movable scroll structure. Such a scroll compressor has stable and reliable force, the movable scroll is not subjected to overturning torque, its operation is more stable, and the friction power consumption is lower, so the overall performance is also better.

[0026] The beneficial effects of the embodiments of the present invention include, for example:

[0027] The double-profile movable scroll structure of the present invention includes a substrate and two movable scroll profiles. The driving hole is arranged through the substrate. The shapes and sizes of the two scroll profiles symmetrically arranged on both sides of the axial direction of the substrate are the same. Furthermore, the compression torque formed by the compression component torque evenly distributed on the two movable scroll profiles on both sides of the axial direction of the substrate is located at the axial center of the substrate. The penetrating driving hole enables the driving torque to be located at the axial center of the substrate. The compression torque is the same as the driving torque in magnitude but opposite in direction. In this way, the movable scroll is not subjected to the overturning torque, thereby improving the situation in the prior art where the overturning torque is generated due to the driving torque and the compression torque not being in the same straight line, and then the movable scroll flips, causing the operating friction power consumption to increase and affecting the performance of the whole machine.

[0028] The movable scroll of the scroll compressor of this solution is subjected to balanced force and will not generate overturning torque, thereby ensuring the stability and smoothness of the operation of the entire machine structure and further improving the performance of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a structural schematic diagram of a movable scroll in the prior art;

[0031] Figure 2 It is a structural schematic diagram of one side of the bearing mounting hole of the movable scroll in the prior art;

[0032] Figure 3 It is a schematic structural diagram of the side direction of the movable scroll in the prior art;

[0033] Figure 4 A schematic structural diagram of a double-type linear movable scroll structure of this embodiment of the present invention;

[0034] Figure 5 The double-profile movable scroll structure of this embodiment of the present invention has a structural schematic diagram of a positive side profile;

[0035] Figure 6 The double-profile movable scroll structure of this embodiment of the present invention has a structural schematic diagram of the opposite profile side;

[0036] Figure 7 A schematic structural diagram of the double-type linear movable scroll structure of this embodiment of the present invention from another perspective.

[0037] Icons: 11-base plate; 12-profile; 13-anti-rotation ring mounting hole; 14-bearing mounting hole; 20-double-profile movable scroll structure; 100-base plate; 110-drive hole; 120-anti-rotation hole; 200-moving scroll profile; 201-positive side profile; 202-negative side profile; 300-protrusion; 310-recessed surface. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0043] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0044] Figure 1 It is a schematic diagram of the structure of a movable scroll in the prior art. Figure 2 It is a schematic structural diagram of one side of the bearing mounting hole of the movable scroll in the prior art. Figure 3 It is a side view in the prior art, and shows the force applied to the movable scroll.

[0045] from Figure 1 , Figure 2 and Figure 3 It can be seen that the structure of the movable scroll of the existing scroll compressor includes a base plate 11, a profile 12, an anti-rotation ring mounting hole 13, and a bearing mounting hole 14; wherein the profile 12 is located on one side of the base plate, and the anti-rotation ring mounting hole 13 and the bearing mounting hole 14 are located on the other side of the base plate 11. When the compressor is working, the driving force acting on the movable scroll bearing mounting hole 14 drives the movable scroll to make a circular translation; the force acting on the movable scroll anti-rotation ring mounting hole 13 prevents the movable scroll from rotating; a closed working chamber is formed by the meshing of the movable scroll profile and the static scroll profile, and as the volume of the closed working chamber gradually decreases, the function of compressing the refrigerant in the closed working chamber is realized.

[0046] The existing scroll compressor movable scroll structure has the following problems:

[0047] 1. If Figure 1 and Figure 2 As shown, the existence of the bearing mounting hole and the anti-rotation ring mounting hole 13 results in that only one side of the movable scroll base plate 11 can be arranged with the profile line 12, which is not conducive to the spatial arrangement of the profile line.

[0048] 2. If Figure 3 As shown, the driving force acting on the movable scroll bearing mounting hole 14 and the refrigerant reaction force (i.e., compression torque) acting on the movable scroll profile 12 are not on the same straight line, causing the movable scroll to be subjected to a large overturning torque, resulting in the movable scroll flipping and overturning, severe local friction on the side and bottom of the movable scroll profile, increased friction power consumption, and reduced performance of the entire machine.

[0049] In order to improve the above technical problems, a double-type linear movable scroll structure and a scroll compressor are provided in the following embodiments.

[0050] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 This embodiment provides a double-profile movable scroll structure 20 for compressing fluid, including a base plate 100 and two movable scroll profiles 200 .

[0051] At least one penetrating driving hole 110 is provided on the substrate 100;

[0052] The two vortex lines have the same shape and size, and the two moving vortex lines 200 are symmetrically arranged on both sides of the axial direction of the substrate 100 so that the driving torque acting on the driving hole 110 is equal to the compression torque of the fluid acting on the moving vortex line 200.

[0053] Compared with the prior art in which only one side of the substrate 100 is provided with a profile line in the axial direction, resulting in the compression torque being located at a position deviated from the center of the substrate 100 in the axial direction, the bearing mounting hole for applying the driving force is located at the other side of the substrate 100 away from the profile line, resulting in the driving torque being located at the other side of the substrate 100 in the axial direction deviated from the center. That is, the compression torque and the driving torque in the prior art are respectively located at both sides of the axial direction of the substrate 100, so that the compression torque and the driving torque are not in the same straight line, thereby generating a tipping torque, causing the movable scroll to flip and overturn, resulting in the technical problem that the friction power consumption of the movable scroll is increased and the performance of the whole machine is reduced.

[0054] The two compression torques of this solution form a resultant torque located at the center of the axial direction of the substrate 100, and the driving torque is also located at the center of the axial direction of the substrate 100, and the resultant torque is the same in magnitude and opposite in direction to the driving torque. That is, the compression torque and the driving torque finally achieve a balance along the radial direction of the substrate 100, so that there is no overturning torque on the movable scroll, thus ensuring that the movable scroll does not flip over, achieving stable operation, reducing operating friction and power consumption, and improving the performance of the whole machine.

[0055] See also Figure 5 and Figure 6 Along the axial direction of the substrate 100, the two movable scroll profiles 200 of the double-profile movable scroll structure 20 are respectively named as the positive side profile 201 and the negative side profile 202. Further, it can be seen from the figure that the structures on both sides of the axial direction of the substrate 100 are completely the same and symmetrically arranged.

[0056] Please continue reading Figures 4 to 7 , to understand more structural details of the double-type linear scroll structure 20.

[0057] As can be seen from the figure, in this embodiment of the present invention, the driving hole 110 is located at the edge of the substrate 100 away from the movable vortex profile 200. The driving hole 110 is arranged at the edge of the substrate 100, so that the driving hole 110 can occupy the minimum disk area of ​​the substrate 100, thereby providing a larger space for the arrangement of the movable vortex profile 200. That is, such an arrangement can arrange the preset movable vortex profile 200 on a smaller area of ​​the substrate 100 while satisfying the performance of the movable scroll, thereby improving the space utilization of the movable scroll.

[0058] Furthermore, in this embodiment of the present invention, two drive holes 110 are provided on the substrate 100, and the two drive holes 110 are evenly distributed on the substrate 100. That is, along the center of the substrate 100, the two drive holes 110 are centrally symmetrically arranged, and the angle between the two is 180°. The arrangement of the two drive holes 110 can not only provide a greater driving force for the movable scroll than a single drive hole 110, but also balance the force on the movable scroll through the symmetrical arrangement of the two drive holes 110. At the same time, compared with multiple drive holes 110, this arrangement can also simplify the structure while ensuring a greater driving force, thereby improving the performance of the movable scroll.

[0059] It should be noted that when the number of the driving holes 110 is greater than 2, the multiple driving holes 110 are evenly distributed on the substrate 100 in the circumferential direction. The multiple driving holes 110 can ensure the stability and reliability of the circular translation of the movable scroll. Compared with the setting method of a single driving hole 110, the setting of multiple driving holes 110 can make the driving torque received by the movable scroll more balanced. The circumferential uniform distribution of the multiple driving holes 110 can ensure that the force on the movable scroll itself in the circumferential direction is more stable, which is conducive to the smoothness and stability of the movable scroll when performing circular translation.

[0060] It is understandable that in other embodiments of the present invention, the number of driving holes 110 may be 1, 3, or more than three, and the plurality of driving holes 110 may not be uniformly distributed circumferentially on the substrate 100, as long as the driving holes 110 can drive the movable scroll to perform circular translation to compress the fluid. This is only an example and is not limiting.

[0061] from Figures 4 to 6 It can be seen that in this embodiment of the present invention, the double-type linear movable scroll structure 20 also includes a plurality of anti-rotation holes 120 that are arranged through the substrate 100, and the anti-rotation holes 120 are used to cooperate with the anti-rotation pins on the fixed scroll. The anti-rotation holes 120 and the anti-rotation pins cooperate with each other so that the movable scroll can only move in a circular translation under the drive of the driving hole 110, but cannot rotate on its own, thus ensuring the reliability and stability of the compressed fluid of the movable scroll. Specifically, in this embodiment, six anti-rotation holes 120 are arranged on the substrate 100.

[0062] Furthermore, in the present embodiment, a plurality of anti-rotation holes 120 are located at the edge of the substrate 100 away from the movable vortex profile 200. Arranging the anti-rotation holes 120 at the edge of the substrate 100 can minimize the disk area of ​​the substrate 100 occupied by the anti-rotation holes 120, thereby providing a larger space for the arrangement of the movable vortex profile 200. That is, such an arrangement can arrange a preset movable vortex profile 200 on a substrate 100 of a smaller area while satisfying the performance of the movable scroll, thereby improving the space utilization of the movable scroll. On the other hand, the anti-rotation holes 120 arranged at the edge of the substrate 100 can be easily matched with the anti-rotation pin, and such an arrangement has less interference with other components, thereby improving the reliability of the double-profile movable scroll structure 20.

[0063] Optionally, in this embodiment of the present invention, a plurality of anti-rotation holes 120 are evenly distributed circumferentially on the substrate 100. The anti-rotation holes 120 evenly distributed circumferentially can ensure that when the anti-rotation holes 120 receive the force of the anti-rotation pin, the force is more stable, the overall structure of the movable scroll is more stable, and the overall performance of the double-line movable scroll structure 20 is improved.

[0064] Furthermore, in this embodiment of the present invention, along the circumferential direction of the base plate 100, the driving hole 110 is located between two adjacent anti-rotation holes 120. Such an arrangement can make the arrangement of the driving hole 110 and the anti-rotation hole 120 more compact, and the space utilization rate of the double-type linear movable scroll structure 20 is better.

[0065] Specifically, the distance between the driving hole 110 and the two adjacent anti-rotation holes 120 is the same. This ensures the stability of the force between the driving hole 110 and the adjacent anti-rotation holes 120. Furthermore, the center of the driving hole 110 is located at the center of the line connecting the centers of the two adjacent anti-rotation holes 120. This arrangement further ensures the stability of the force between the driving hole 110 and the anti-rotation hole 120, and avoids the unbalanced force between the anti-rotation hole 120 and the driving hole 110, which affects the force of the movable scroll.

[0066] It can also be seen from the figure that in this embodiment of the present invention, the double-profile movable scroll structure 20 also includes a plurality of protrusions 300; the protrusions 300 are arranged on the edge of the substrate 100, and the anti-rotation holes 120 and the drive holes 110 are both arranged on the protrusions 300; the height of the protrusions 300 is equal to the sum of the axial thickness of the substrate 100 and the axial thickness of the two movable scroll profiles 200.

[0067] Compared with the anti-rotation hole 120 and the driving hole 110 starting directly on the board surface of the substrate 100, the provision of the protrusion 300 can increase the depth of the anti-rotation hole 120 and the driving hole 110, thereby making the anti-rotation hole 120 and the driving hole 110 structure more reliable and stable.

[0068] Optionally, the protrusions 300 are all cylindrical members, which are arranged along the axis of the substrate 100, and the peripheral wall of the substrate 100 is connected to the outer wall of the cylindrical member in an arc shape. In this way, the stability of the connection between the substrate 100 and the protrusions 300 is ensured, and the force on the substrate 100 and the protrusions 300 is also more stable.

[0069] Furthermore, along the axial direction, the protrusion 300 extends to both sides of the substrate 100 respectively. And along the axial direction of the substrate 100, the height difference between the protrusion 300 and the surfaces on both sides of the substrate 100 is the same. That is, the height difference between the top of the protrusion 300 on the positive side profile 201 and the surface of the substrate 100 on that side is the same as the height difference between the top of the protrusion 300 on the negative side profile 202 and the surface of the substrate 100 on the negative side profile 202. Such an arrangement can ensure that the compression torque on both sides of the double profile movable scroll structure 20 remains the same.

[0070] It is not difficult to see that, along the axial direction, the height of the top of the protrusion 300 from the plate surface of the same side substrate 100 is equal to the height of the movable scroll profile 200 on that side. Such an arrangement can further ensure the stability of the force applied to the movable scroll.

[0071] It can also be seen from the figure that the end of the moving vortex profile 200 is connected to the protruding member 300. The connecting line of the two driving holes 110 is located near the starting end of the moving vortex profile 200.

[0072] In this embodiment of the present invention, along the circumferential direction of the substrate 100, the circumferential wall of the substrate 100 between adjacent protrusions 300 forms a recessed surface 310, and the recessed surface 310 is recessed toward the center of the substrate 100. The arrangement of the recessed surface 310 can further reduce the area of ​​the substrate 100 except the movable scroll line 200, thereby reducing the weight and volume of the double-line movable scroll structure 20, thereby reducing the overall power consumption and improving the stability and reliability of the overall performance.

[0073] like Figure 7 As shown, the double-profile movable scroll structure 20 of the present solution is provided with two movable scroll profiles 200 of the same shape and size on both axial sides of the substrate 100, so that the compression component torque of the compressed fluid (such as refrigerant) acting on the movable scroll profile 200 is evenly distributed on both axial sides of the substrate 100. That is, both sides of the axial direction of the substrate 100 have two identical compression component torques extending in the radial direction of the substrate 100, and the two compression component torques have the same magnitude, direction, and distance from the substrate 100. The driving hole 110 penetrates the substrate 100, so that the driving torque acting on the driving hole 110 can be located at the center position of the axial direction of the substrate 100.

[0074] It can be seen from the figure that when the compressor is running, the movable scroll is symmetrically subjected to a vertical downward refrigerant reaction force on both sides in the vertical direction, and is subjected to a vertical upward driving force at the symmetrical center line of the movable scroll. According to this force structure, there is no overturning moment of the movable scroll, so it can be ensured that the movable scroll does not flip over and over, thereby achieving smooth operation, reducing operating friction and power consumption, and improving the performance of the entire machine.

[0075] That is, the two compression components form a resultant moment (compression moment), and the driving moment is located at the center of the axial direction of the substrate 100. The compression moment and the driving moment are of the same magnitude and opposite direction, so that the compression moment and the driving moment are finally balanced along the radial direction of the substrate 100, so that there is no overturning moment of the movable scroll.

[0076] In a second aspect, the present invention provides a scroll compressor, comprising a double-type linear movable scroll structure 20 according to any one of the aforementioned embodiments.

[0077] The scroll compressor includes the above-mentioned double-line movable scroll structure 20, and thus has all the beneficial effects of the double-line movable scroll structure 20. Such a scroll compressor has stable and reliable force, the movable scroll is not subjected to overturning moment, its operation is more stable, and the friction power consumption is lower, so the overall performance is also better.

[0078] Furthermore, the scroll compressor includes two stationary scrolls, which are respectively meshed with the positive side profile 201 and the negative side profile 202 of the double-profile movable scroll structure 20, so that the scroll compressor has two symmetrical compression chambers, thereby improving the working efficiency of the scroll compressor.

[0079] In summary, the embodiment of the present invention provides a double-type linear movable scroll structure 20 and a scroll compressor, which have at least the following advantages:

[0080] 1. By arranging the driving hole 110 for driving the movable scroll to move and the anti-rotation hole 120 for preventing the movable scroll from rotating on the outer edge of the base plate 100, the profile line can be arranged on both sides of the movable scroll base plate 100;

[0081] 2. By arranging the same profile lines symmetrically on both sides of the movable scroll base plate 100 and arranging the driving hole 110 at the outer edge of the base plate 100, when the compressor is running, the movable scroll is subjected to a vertical downward refrigerant reaction force symmetrically on both sides in the vertical direction, and is subjected to a vertical upward driving force at the symmetric center line of the movable scroll;

[0082] 3. According to this force structure, there is no overturning moment on the movable scroll, so it can ensure that the movable scroll does not flip over, achieve smooth operation, reduce operating friction and power consumption, and improve the performance of the whole machine.

[0083] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A double-type linear scroll structure for compressing fluid, characterized in that: include: A base plate (100) and two moving vortex profiles (200); The substrate (100) is provided with at least one penetrating driving hole (110); The two vortex lines have the same shape and size, and the two moving vortex lines (200) are symmetrically arranged on both sides of the axial direction of the substrate (100), so that the driving torque acting on the driving hole (110) is equal to the compression torque of the fluid acting on the moving vortex line (200); The double-type linear movable scroll structure further comprises a plurality of anti-rotation holes (120) penetratingly arranged on the base plate (100), the anti-rotation holes (120) being used to cooperate with anti-rotation pins on the fixed scroll; the anti-rotation holes (120) and the anti-rotation pins cooperate with each other so that the movable scroll can only perform circular translation under the drive of the driving hole (110) but cannot rotate on its own, thereby ensuring the reliability and stability of the compressed fluid of the movable scroll; The double-profile movable scroll structure further comprises a plurality of protrusions (300); the protrusions (300) are arranged on the edge of the base plate (100), and the anti-rotation holes (120) and the driving holes (110) are both arranged on the protrusions (300); the height of the protrusions (300) is equal to the sum of the axial thickness of the base plate (100) and the axial thickness of the two movable scroll profiles (200); Along the axial direction of the substrate, the two movable scroll profiles of the double-profile movable scroll structure are the positive side profile and the negative side profile; Along the axial direction, the protrusions extend to both sides of the substrate respectively; and along the axial direction of the substrate, the height difference between the protrusions and the surfaces on both sides of the substrate is the same; the height difference between the top of the protrusion on the side of the positive side profile and the surface of the substrate on that side is the same as the height difference between the top of the protrusion on the side of the negative side profile and the surface of the substrate on the side of the negative side profile.

2. The double-type linear movable scroll structure according to claim 1 is characterized in that: The driving hole (110) is located at an edge of the substrate (100) away from the moving vortex profile (200).

3. The double-type linear movable scroll structure according to claim 1 is characterized in that: When the number of the driving holes (110) is greater than 2, the plurality of driving holes (110) are evenly distributed in the circumferential direction on the substrate (100).

4. The double-type linear movable scroll structure according to claim 1, characterized in that: The plurality of anti-rotation holes (120) are all located at an edge of the base plate (100) away from the moving vortex profile (200).

5. The double-type linear movable scroll structure according to claim 1, characterized in that: The plurality of anti-rotation holes (120) are evenly distributed in the circumferential direction on the substrate (100).

6. The double-type linear movable scroll structure according to claim 1, characterized in that: Along the circumferential direction of the substrate (100), the driving hole (110) is located between two adjacent anti-rotation holes (120).

7. The double-type linear movable scroll structure according to claim 1, characterized in that: Along the circumferential direction of the substrate (100), a circumferential wall of the substrate (100) located between adjacent protruding pieces (300) forms a recessed surface (310), wherein the recessed surface (310) is recessed towards the center of the substrate (100).

8. A scroll compressor, characterized in that: The scroll compressor comprises a double-type linear movable scroll structure according to any one of claims 1 to 7.

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