Scroll compressor and refrigeration equipment

Abstract

The invention discloses a scroll compressor and refrigeration equipment. The scroll compressor comprises a machine shell, a crankshaft, an auxiliary rack assembly and an oil baffle plate, an oil pool is arranged at the bottom of the machine shell. The crankshaft is arranged in the machine shell. The auxiliary rack assembly is arranged in the machine shell and connected with the lower end of the crankshaft in an assembled mode. The oil baffle plate comprises a first plate body installed on the auxiliary rack assembly and a second plate body arranged on the periphery of the first plate body, the second plate body and the first plate body are connected in an included angle mode, and the first plate body is located above the oil pool so as to stabilize the oil level in the oil pool. According to the technical scheme, the effect of better stabilizing the oil level of the oil pool can be achieved, the amount of oil entrained upwards in the oil pool is reduced, and the purpose of reducing the oil spitting rate of the compressor is achieved.

Description

Technical Field

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

[0002] In a scroll compressor, the lubricating oil in the oil pool in the casing flows through the oil passage in the crankshaft to various positions that require lubrication, so as to lubricate the friction pair structure in the scroll compressor.

[0003] In the related technology, the oil level in the oil pool is easily disturbed by the airflow inside the compressor. The oil stirred by the airflow is easily mixed with the refrigerant and discharged through the exhaust hole, resulting in a large amount of oil discharge from the scroll compressor. The discharged lubricating oil enters the refrigeration system of the entire machine, which will reduce the heat exchange efficiency and thus affect the energy efficiency of the entire machine. Summary of the invention

[0004] The main purpose of the present invention is to provide a scroll compressor, aiming to reduce the oil discharge amount of the scroll compressor and improve the energy efficiency of the compressor and refrigeration equipment.

[0005] To achieve the above object, the present invention provides a scroll compressor, comprising:

[0006] A casing, wherein an oil pool is provided at the bottom of the casing;

[0007] A crankshaft, disposed in the casing;

[0008] A sub-frame assembly, disposed in the casing and assembled and connected to the lower end of the crankshaft; and

[0009] The oil baffle comprises a first plate body mounted on the auxiliary frame assembly and a second plate body arranged at the periphery of the first plate body, the second plate body is connected to the first plate body at an angle, and the first plate body is located above the oil pool to stabilize the oil level in the oil pool.

[0010] In an embodiment of the present application, the second plate is located on a side of the first plate facing the oil pool.

[0011] In one embodiment of the present application, the second plate is vertically connected to the first plate.

[0012] In an embodiment of the present application, the outer peripheral wall of the second plate body abuts against the housing.

[0013] In an embodiment of the present application, the second plate is located on a side of the first plate away from the oil pool.

[0014] In one embodiment of the present application, the second plate body extends obliquely from an edge of the first plate body toward a direction away from the oil pool.

[0015] In one embodiment of the present application, the first plate body is provided with a plurality of oil return holes penetrating through the upper and lower sides of the plate body.

[0016] In one embodiment of the present application, the first plate body is a disc structure, and a plurality of the oil return holes are distributed at intervals around the central axis of the first plate body.

[0017] In one embodiment of the present application, the sub-frame assembly includes:

[0018] A support ring, fixedly connected to the housing;

[0019] A sub-frame, used to be assembled with the lower end of the crankshaft and fixedly installed below the support ring; and

[0020] A cushion block is arranged below the auxiliary frame; the first plate body is installed at the bottom of the cushion block, and in the radial direction, the oil return hole is located on the outside of the cushion block.

[0021] In one embodiment of the present application, the auxiliary frame includes a bearing support portion and a plurality of connecting arms arranged on the outer periphery of the bearing support portion, the lower end of the crankshaft is assembled on the bearing support portion, the connecting arm is fixedly connected to the support ring, and the cushion block is arranged on the outer periphery of the bearing support portion;

[0022] The first plate body is provided with a central mounting hole, and is sleeved on the outer periphery of the bearing support portion through the central mounting hole.

[0023] In one embodiment of the present application, a first assembly hole is provided on the first plate body, a second assembly hole is provided on the cushion block, and a third assembly hole is provided on the sub-frame, and the first assembly hole, the second assembly hole and the third assembly hole are sequentially connected in the axial direction; the scroll compressor also includes a fastener, and the fastener is sequentially penetrated and fixed in the first assembly hole, the second assembly hole and the third assembly hole.

[0024] In one embodiment of the present application, the first assembly hole is located between the central mounting hole and the oil return hole.

[0025] In one embodiment of the present application, the support ring has a plurality of support claws fixedly connected to the inner wall of the casing, and the oil baffle plate is provided with avoidance openings corresponding to the plurality of support claws.

[0026] To achieve the above object, the present application also provides a refrigeration device, including the above scroll compressor. The scroll compressor includes:

[0027] A casing, wherein an oil pool is provided at the bottom of the casing;

[0028] A crankshaft, disposed in the casing;

[0029] A sub-frame assembly, disposed in the casing and assembled and connected to the lower end of the crankshaft; and

[0030] The oil baffle comprises a first plate body mounted on the auxiliary frame assembly and a second plate body arranged at the periphery of the first plate body, the second plate body is connected to the first plate body at an angle, and the first plate body is located above the oil pool to stabilize the oil level in the oil pool.

[0031] In the scroll compressor of the technical solution of the present invention, an oil pool is provided at the bottom of the casing, a crankshaft is arranged in the casing, and a sub-frame assembly is assembled with the lower end of the crankshaft. An oil baffle plate is arranged on the sub-frame assembly, and the oil baffle plate includes a first plate body installed on the sub-frame assembly and a second plate body arranged on the periphery of the first plate body. The second plate body is connected to the first plate body at an angle, so that the first plate body is opposite to the middle area of ​​the oil pool liquid surface, and the second plate body is opposite to the peripheral area of ​​the oil pool liquid surface, which can be more closely fitted with the oil surface, play a role in better stabilizing the oil level of the oil pool, reduce the amount of oil in the oil pool that is sucked upward, and achieve the purpose of reducing the oil discharge rate of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 It is a structural schematic diagram of an embodiment of a scroll compressor of the present invention;

[0034] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0035] Figure 3 for Figure 1 A schematic structural diagram of an embodiment of an oil baffle in a scroll compressor;

[0036] Figure 4 for Figure 3 A full cross-sectional view of an embodiment of a middle oil baffle;

[0037] Figure 5 for Figure 1 A schematic structural diagram of another embodiment of an oil baffle in a scroll compressor;

[0038] Figure 6 for Figure 5 A full cross-sectional view of an embodiment of a middle oil baffle;

[0039] Figure 7 It is a structural schematic diagram of another embodiment of the scroll compressor of the present invention;

[0040] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0041] Fig. 9 for Figure 7 A schematic structural diagram of an embodiment of an oil baffle in a scroll compressor;

[0042] Fig.10 for Fig. 9 A full cross-sectional view of an embodiment of a middle oil baffle;

[0043] Fig.11 for Figure 7 A schematic structural diagram of another embodiment of an oil baffle in a scroll compressor;

[0044] Fig.12 for Fig.11 A full cross-sectional view of an embodiment of a middle oil baffle.

[0045] Description of Figure Numbers:

[0046] Label name Label name 1 chassis 331 Second mounting hole 11 Oil pool 4 Oil baffle 2 Crankshaft 41 The first plate 3 Sub-frame assembly 42 The second plate 31 Support ring 401 Oil return hole 311 Installation Department 402 Center mounting hole 312 Support claw 403 Avoidance 312a Mounting boss 404 First assembly hole 32 Sub-frame 5 Motor 321 Bearing support 6 Main frame components 322 Connecting arm 71 Orbiting scroll 323 The third assembly hole 72 Static vortex disk 33 Pads

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] The present invention provides a scroll compressor. Figure 1 and Figure 7 The scroll compressor includes a casing 1 and a motor 5, a crankshaft 2, a sub-frame assembly 3, a main frame assembly 6, a movable scroll 71 and a fixed scroll 72 arranged in the casing 1. The main frame assembly 6 is arranged at the upper part of the casing 1, and the movable scroll 71 and the fixed scroll 72 are installed above it. The movable scroll 71 and the fixed scroll 72 cooperate with each other to form a compression chamber. The motor 5 is installed below the main frame assembly 6 and is connected to the crankshaft 2. The upper end of the crankshaft 2 passes through the main frame assembly 6 and is connected to the movable scroll 71. The sub-frame assembly 3 is arranged at the lower part of the casing 1, and the lower end of the crankshaft 2 is assembled and connected to the sub-frame assembly 3. An oil pool 11 is provided at the bottom of the casing 1.

[0053] According to the structure of the scroll compressor, it can be understood that the refrigerant enters the pump body from the air intake port of the casing 1, and is discharged from the compression chamber into the casing 1 after being compressed. At this time, the high-temperature and high-pressure refrigerant gas flows downward from the main frame assembly 6 to the middle cavity of the casing 1. A part of the refrigerant will be directly discharged into the circulation system of the refrigeration equipment through the exhaust port on the casing 1, and the other part of the refrigerant will continue to flow downward to the area below the motor 5, and then return to the middle cavity of the casing 1 and be discharged from the compressor from the exhaust port. The refrigerant airflow flowing to the bottom of the motor 5 can take away the heat generated by the operation of the motor 5, but it will disturb the oil pool 11 at the bottom of the casing 1. At the same time, the oil pump housing at the lower end of the crankshaft 2 rotates driven by the crankshaft 2, and it will also stir the oil in the oil pool 21, causing the lubricating oil in the oil pool 11 to be sucked into the refrigerant gas to participate in the circulation, and the compressor has a large oil discharge rate.

[0054] Based on this, see Figure 1 , Figure 2 , Figure 7 and Figure 8 In this embodiment, an oil baffle plate 4 is installed on the sub-frame assembly 3. The oil baffle plate 4 includes a first plate body 41 and a second plate body 42 arranged on the periphery of the first plate body 41. The second plate body 42 is connected to the first plate body 41 at an angle. The first plate body 41 is located above the oil pool 11 to stabilize the oil level in the oil pool 11.

[0055] By installing the oil baffle plate 4 on the sub-frame assembly 3, on the one hand, it can block the disturbance of the refrigerant airflow under the motor 5 to the oil in the oil pool 11, and on the other hand, it can stabilize the liquid level of the oil pool 11. Specifically, during the operation of the compressor, the oil in the oil pool 11 will form a structure similar to a "V" shape after being stirred, that is, at this time, the oil surface of the oil pool 11 is not a plane, but a shape with a lower middle and a higher periphery. By setting a second plate body 42 at an angle on the periphery of the first plate body 41, the first plate body 41 is connected to the sub-frame assembly 3 and corresponds to the middle position of the oil surface of the oil pool 11, so as to fit with the middle area of ​​the oil surface, and the second plate body 42 corresponds to the peripheral position of the oil surface of the oil pool 21 to stabilize the peripheral area of ​​the oil surface, thereby reducing the amount of oil in the oil pool 21 that is sucked upward, thereby achieving the purpose of reducing the oil discharge rate of the compressor.

[0056] It can be understood that the second plate body 42 can be arranged on the side of the first plate body 41 away from the oil pool 11 or on the side facing the oil pool 11, that is, the second plate body 42 can be folded upward or downward relative to the first plate body 41. When the second plate body 42 is arranged away from the oil pool 11, the second plate body 42 and the first plate body 41 form a shape with a low middle area and a high peripheral area, so that it can be more compatible with the shape of the oil surface of the oil pool 11 during the operation of the compressor. Compared with the existing planar oil baffle structure, it can fit the oil surface better and stabilize the oil surface better. When the second plate body 42 is arranged toward the oil pool 11, the second plate body 42 plays a blocking role on the peripheral area of ​​the oil pool 11 to stabilize the peripheral oil liquid level by pressing, thereby reducing the amount of oil sucked into the oil pool 11.

[0057] In practical application, the shape and structure of the first plate body 41 can be determined according to the actual situation, such as circular, rectangular or other special shapes. In this embodiment, in order to achieve a better oil blocking effect, the first plate body 41 adopts a circular structure, which can be adapted to the shape of the oil surface of the oil pool 11 of the compressor. Correspondingly, the outer ring shape of the second plate body 42 can also adopt a circular shape to adapt to the shape of the compressor casing 1 to achieve a better oil blocking effect. Optionally, the cross-sectional shape of the second plate body 42 can be an arc shape or a rectangular shape.

[0058] Optionally, the oil baffle plate 4 is a metal part. In actual application, the first plate body 41 is fixedly installed with the auxiliary frame assembly 3, and can be connected by screws or rivets. The second plate body 42 and the first plate body 41 can be separately formed or integrally formed. In order to improve the forming efficiency, in this embodiment, the second plate body 42 and the first plate body 41 are integrally formed by stamping.

[0059] In the scroll compressor of the technical solution of the present invention, an oil pool 11 is provided at the bottom of the casing 1, the crankshaft 2 is arranged in the casing 1, and the sub-frame assembly 3 is assembled with the lower end of the crankshaft 2. By arranging an oil baffle plate 4 on the sub-frame assembly 3, the oil baffle plate 4 includes a first plate body 41 installed on the sub-frame assembly 3 and a second plate body 42 arranged on the periphery of the first plate body 41, and the second plate body 42 is connected to the first plate body 41 at an angle, so that the first plate body 41 is opposite to the middle area of ​​the liquid surface of the oil pool 11, and the second plate body 42 is opposite to the peripheral area of ​​the liquid surface of the oil pool 11, which can be more closely fitted with the oil surface, play a role in better stabilizing the oil surface of the oil pool 21, reduce the amount of oil in the oil pool 11 that is sucked upward, and achieve the purpose of reducing the oil discharge rate of the compressor.

[0060] In one embodiment of the present application, please refer to Figures 1 to 6 The second plate body 42 is located on a side of the first plate body 41 facing the oil pool 11 .

[0061] In this embodiment, the second plate body 42 extends toward the oil pool 11 relative to the first plate body 41, so that during the operation of the compressor, the second plate body 42 can play a blocking and stabilizing role in the peripheral area of ​​the oil pool 11 where the liquid level is higher, thereby reducing the amount of oil in the oil pool 11 that is sucked upward.

[0062] By arranging the second plate body 42 to extend downward from the edge of the first plate body 41 , the second plate body 42 can be an annular plate structure, which is integrally formed by a stamping process, thereby simplifying the process and reducing the cost.

[0063] Furthermore, in practical applications, the angle between the second plate body 42 and the first plate body 41 can be determined according to actual conditions, such as being inclined relative to the central axis of the first plate body 41 , or being parallel to the central axis of the first plate body 41 .

[0064] As an example, the second plate body 42 is vertically connected to the first plate body 41, and the extension direction of the second plate body 42 is parallel to the central axis of the first plate body 41. In this way, the lower surface of the oil baffle plate 4 roughly forms a "∩"-shaped structure. When the oil in the oil pool 11 is stirred during the operation of the compressor, the oil level will be stirred within the enclosure formed by the first plate body 41 and the second plate body 42, thereby reducing the amount of oil entrained by the refrigerant gas above the oil baffle plate 4.

[0065] In addition, the second plate body 42 is vertically connected to the first plate body 41, which further simplifies the molding process.

[0066] Furthermore, the outer peripheral wall of the second plate body 42 abuts against the casing 1. In this embodiment, by abutting the outer peripheral wall of the second plate body 42 against the casing 1, on the one hand, the refrigerant gas above the oil baffle plate 4 can be prevented from entering the oil pool 11 from the gap between the second plate body 42 and the casing 1, and on the other hand, the oil in the oil pool 11 can be prevented from entering the oil baffle plate 4 from the gap between the second plate body 42 and the casing 1 and being sucked by the refrigerant. Thereby, the oil circulation rate can be further reduced, and the oil discharge rate of the compressor can be reduced.

[0067] In another embodiment of the present application, please refer to Figures 7 to 12 The second plate body 42 is located on a side of the first plate body 41 away from the oil pool 11 .

[0068] In this embodiment, the second plate body 42 and the first plate body 41 form a structure with a low middle and a high periphery, which can be more adapted to the oil surface shape of the oil pool 11 with a low middle and a high periphery during the operation of the compressor, and can fit the oil surface more closely, thereby achieving a better effect of stabilizing the oil surface.

[0069] Furthermore, the second plate body 42 extends obliquely relative to the first plate body 41 , and at this time the second plate body 42 forms a funnel-shaped structure, and the lower surface of the second plate body 42 is adapted to the peripheral area of ​​the oil surface in the oil pool 11 , and can stabilize the disturbed oil surface.

[0070] As an example, the angle θ between the second plate 42 and the plane where the first plate 41 is located satisfies 15°≤θ≤60°. It is understandable that the angle θ between the second plate 42 and the plane where the first plate 41 is located cannot be too large or too small. If it is too large, the second plate 42 will be tilted too much in the direction away from the oil pool 11, and the second plate 42 will not have the effect of blocking the oil; if it is too small, the second plate 42 and the first plate 41 are almost in the same plane, and at this time, the "V" shape of the oil surface of the oil pool 11 is not well adapted, and the effect of stabilizing the oil surface is poor. In this embodiment, the angle θ between the second plate 42 and the plane where the first plate 41 is located is set to be not less than 15° and not more than 60° to ensure a better effect of stabilizing the oil surface. In actual application, the angle θ between the second plate 42 and the plane where the first plate 41 is located can be 15°, 18°, 20°, 24°, 25°, 30°, 35°, 40°, 45°, 48°, 50°, 53°, 55°, 58° or 60°, etc. The specific angle selection can be determined by referring to the "V"-shaped oil surface in the oil pool at different speeds of the compressor, and is not limited here.

[0071] In one embodiment of the present application, please refer to Figure 3 and Fig. 9 The first plate body 41 is provided with a plurality of oil return holes 401 penetrating the upper and lower sides of the first plate body 41 .

[0072] In this embodiment, an oil return hole 401 is provided on the first plate body 41 so that the oil sucked upward in the oil pool 11 or the oil pumped up by the crankshaft 2 can fall back on the oil baffle plate 4 and fall back into the oil pool 11 through the oil return hole 401 .

[0073] It can be understood that, taking the second plate body 42 being located above the first plate body 41 as an example, the oil return hole 401 is set on the first plate body 41, and the oil return hole 401 is located near the middle of the oil baffle plate 4, and its position is lower than the position of the second plate body 42. At this time, the upper surface of the second plate body 42 plays the role of guiding the return oil, and the oil dripping on the second plate body 42 can be guided downward to the first plate body 41 and flow into the oil pool 11 from the oil return hole 401, thereby improving the oil return efficiency and preventing the oil from gathering above the oil baffle plate 4 and being sucked in for the second time.

[0074] Furthermore, the first plate body 41 is a disc structure, and a plurality of oil return holes 401 are distributed at intervals around the central axis of the first plate body 41 .

[0075] In this embodiment, a plurality of oil return holes 401 are provided on the first plate body 41 to increase the oil return area, and the plurality of oil return holes 401 are evenly distributed around the circumference of the first plate body 41, so that the first plate body 41 can return oil in the circumference, thereby preventing oil from gathering on the first plate body 41. In addition, the first plate body 41 returns oil evenly in the circumference, so that the force on the first plate body 41 is more even, thereby improving the structural stability.

[0076] Optionally, the number of the oil return holes 401 may be 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc. The specific number may be determined according to actual conditions and is not limited here.

[0077] In one embodiment of the present application, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 The auxiliary frame assembly 3 includes a support ring 31, an auxiliary frame 32 and a cushion block 33. The support ring 31 is fixedly connected to the casing 1; the auxiliary frame 32 is used to be assembled with the lower end of the crankshaft 2 and fixedly installed below the support ring 31; the cushion block 33 is arranged below the auxiliary frame 32; the first plate body 41 is installed at the bottom of the cushion block 33, and in the radial direction, the oil return hole 401 is located on the outside of the cushion block 33.

[0078] This embodiment describes the structure of the sub-frame assembly 3. The sub-frame 32 is used to support the lower end of the crankshaft 2, and the support ring 31 plays the role of fixing the sub-frame 32 and the casing 1. The cushion block 33 is installed below the sub-frame 32, and the first plate body 41 is installed at the bottom of the cushion block 32, thereby increasing the distance between the motor 5 and the oil baffle 4. On the one hand, it can extend the airflow path of the refrigerant flowing down from the top of the motor 5, which is more conducive to the separation of oil and gas in the refrigerant gas; on the other hand, it can reduce the distance between the oil baffle 4 and the oil pool 11, so as to achieve a better effect of stabilizing the oil surface.

[0079] In the radial direction of the first plate body 41 , the oil return hole 401 is arranged outside the cushion block 33 to prevent the oil return hole 401 from being blocked, so as to ensure smooth oil return.

[0080] Furthermore, the support ring 31 includes a mounting portion 311 and a plurality of support claws 312, the plurality of support claws 312 are arranged at intervals on the outer periphery of the mounting portion 311, and extend radially outward from the mounting portion 311 to be connected to the housing 1. The sub-frame 32 includes a bearing support portion 321 and a plurality of connecting arms 322 arranged on the outer periphery of the bearing support portion 321, the lower end of the crankshaft 2 is assembled on the bearing support portion 321, the bearing support portion 321 is assembled on the mounting portion 311, the connecting arms 322 are fixedly connected to the support claws 312, and the cushion block 33 is arranged on the outer periphery of the bearing support portion 321; the first plate body 41 is provided with a central mounting hole 402, and is sleeved on the outer periphery of the bearing support portion 321 through the central mounting hole 402.

[0081] In this embodiment, the bearing support portion 321 is used to assemble the crankshaft 2, and the crankshaft 2 can rotate relative to the bearing support portion 321. The upper end of the bearing support portion 321 is assembled on the mounting portion 311, which plays a role in limiting positioning. At least two connecting arms 322 are distributed at intervals on the outer periphery of the bearing support portion 321. The number of the connecting arms 322 is consistent with the number of the supporting claws 312, and the connecting arms 322 correspond to the supporting claws 312 one by one. Through the fixed connection between the connecting arms 322 and the supporting claws 312, the fixed connection between the auxiliary frame 32 and the supporting ring 31 is realized. Optionally, the connecting arms 322 and the supporting claws 312 can be fixed by screw locking.

[0082] As an example, the bearing support part 621 is a cylindrical structure, the cushion block 33 can be an annular structure, which is sleeved on the outer periphery of the bearing support part 321, and the first plate body 41 is sleeved on the outside of the bearing support part 321 through the center mounting hole 402 and fixedly connected to the bottom of the cushion block 33.

[0083] Furthermore, a first assembly hole 404 is provided on the first plate body 41, a second assembly hole 331 is provided on the cushion block 33, and a third assembly hole 323 is provided on the sub-frame 32. The first assembly hole 404, the second assembly hole 331 and the third assembly hole 323 are sequentially connected in the axial direction; the scroll compressor also includes a fastener (not shown), which is sequentially penetrated and fixed to the first assembly hole 404, the second assembly hole 331 and the third assembly hole 323.

[0084] In this embodiment, the first assembly hole 404 of the first plate body 41, the second assembly hole 331 of the cushion block 33, and the third assembly hole 323 on the sub-frame 32 are connected in sequence in the axial direction, and fasteners such as screws are passed through and fixed in sequence to achieve the fixed installation function of the oil baffle plate 4, the cushion block 33 and the sub-frame 32.

[0085] Optionally, at least two first assembly holes 404 are provided on the first plate body 41, and the at least two first assembly holes 404 are evenly arranged around the circumference of the first plate body 41 to enhance the connection reliability between the first plate body 41 and the auxiliary frame assembly 3. In practical applications, the first assembly hole 404 can be arranged in the area between the central mounting hole 402 and the oil return hole 401 of the first plate body 41, and in the circumferential direction, the first assembly hole 404 can be correspondingly arranged at a position between two adjacent oil return holes 401 to ensure the structural strength of the first plate body 41.

[0086] By locating the first assembly hole 404 between the central mounting hole 402 and the oil return hole 401 , the oil return hole 401 is located in the area outside the cushion block 33 , which makes oil return more convenient.

[0087] Furthermore, in order to ensure the connection reliability between the support ring 31 and the housing 1 , the support claw 312 has an assembly boss 312 a extending in the axial direction, and the oil baffle plate 4 is provided with an avoidance opening 403 corresponding to the assembly boss 312 a .

[0088] As an example, see Figure 5 , Figure 6 , Fig.11 and Fig.12 , the assembly boss 312a is welded and fixed to the housing 1. The assembly boss 312a is extended downward from the support claw 312, and the assembly boss 312a is connected to the support claw 312 at a right angle. The structural strength of the support ring 31 is enhanced by setting the right-angle structure. At the same time, the assembly boss 312a increases the connection area between the support ring 31 and the housing 1, so that the fixed connection between the support ring 31 and the housing 1 is more stable and reliable. The oil baffle plate 4 is provided with an avoidance port 403 corresponding to the assembly boss 312a, which can prevent structural interference and can use the avoidance port 403 to return oil.

[0089] The present invention further proposes a refrigeration device, which includes a scroll compressor. The specific structure of the scroll compressor refers to the above embodiment. Since the refrigeration device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Optionally, the refrigeration device can be a refrigerator, an air conditioner, a cold chain vehicle, etc.

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

Claims

1. A scroll compressor, characterized in that: include: A casing, wherein an oil pool is provided at the bottom of the casing; A crankshaft, disposed in the casing; A sub-frame assembly, disposed in the casing and assembled and connected to the lower end of the crankshaft; as well as The oil baffle comprises a first plate body mounted on the auxiliary frame assembly and a second plate body arranged at the periphery of the first plate body, the second plate body is connected to the first plate body at an angle, and the first plate body is located above the oil pool to stabilize the oil level in the oil pool.

2. The scroll compressor according to claim 1, characterized in that: The second plate body is located on a side of the first plate body facing the oil pool.

3. The scroll compressor according to claim 2, characterized in that: The second plate body is vertically connected to the first plate body.

4. The scroll compressor according to claim 3, characterized in that: The outer peripheral wall of the second plate body abuts against the housing.

5. The scroll compressor according to claim 1, wherein: The second plate is located on a side of the first plate facing away from the oil pool.

6. The scroll compressor according to claim 5, characterized in that: The second plate body extends obliquely from an edge of the first plate body toward a direction away from the oil pool.

7. The scroll compressor according to any one of claims 1 to 6, characterized in that: The first plate body is provided with a plurality of oil return holes penetrating through the upper and lower sides of the plate body.

8. The scroll compressor according to claim 7, wherein: The first plate body is a disc structure, and a plurality of the oil return holes are distributed at intervals around the central axis of the first plate body.

9. The scroll compressor according to claim 7, wherein: The sub-frame assembly comprises: A support ring, fixedly connected to the housing; A sub-frame, used to be assembled with the lower end of the crankshaft and fixedly installed below the support ring; and A cushion block is arranged below the auxiliary frame; the first plate body is installed at the bottom of the cushion block, and in the radial direction, the oil return hole is located on the outside of the cushion block.

10. The scroll compressor according to claim 9, characterized in that The auxiliary frame includes a bearing support part and a plurality of connecting arms arranged on the outer periphery of the bearing support part, the lower end of the crankshaft is assembled on the bearing support part, the connecting arm is fixedly connected to the support ring, and the cushion block is arranged on the outer periphery of the bearing support part; The first plate body is provided with a central mounting hole, and is sleeved on the outer periphery of the bearing support portion through the central mounting hole.

11. The scroll compressor according to claim 10, wherein: The first plate body is provided with a first assembly hole, the cushion block is provided with a second assembly hole, and the sub-frame is provided with a third assembly hole, and the first assembly hole, the second assembly hole and the third assembly hole are sequentially connected in the axial direction; the scroll compressor also includes a fastener, and the fastener is sequentially penetrated and fixed in the first assembly hole, the second assembly hole and the third assembly hole.

12. The scroll compressor according to claim 11, wherein: The first assembly hole is located between the central mounting hole and the oil return hole.

13. The scroll compressor according to claim 9, wherein: The support ring has a plurality of support claws fixedly connected to the inner wall of the casing, and the oil baffle plate is provided with avoidance openings corresponding to the plurality of support claws.

14. A refrigeration device, characterized in that: It comprises a scroll compressor as claimed in any one of claims 1 to 13.

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