Compressor applied to air conditioning system, and air conditioning system
By adopting a bottom-mounted pump assembly structure and bearing design in the scroll compressor, the problems of complex structure and low cost performance of scroll compressors are solved, achieving simplified structure and improved energy efficiency.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN PICEA HAIZE ELECTRIC CO LTD
- Filing Date
- 2026-01-16
- Publication Date
- 2026-07-30
AI Technical Summary
Existing scroll compressors have complex structures and low cost-effectiveness. They require additional bearings below the motor to support the crankshaft, and the pump body is far from the bottom oil sump, resulting in high manufacturing costs.
The compressor adopts a vertical variable frequency scroll compressor with a pump body assembly at the bottom. The first and second bearing sections are set up by the stationary scroll plate and the bracket respectively to support the crankshaft, reducing the need for additional bearings. The compression chamber is formed by the meshing of the first and second scroll teeth, reducing leakage.
The compressor structure was simplified, manufacturing costs were reduced, and energy efficiency was improved by reducing leakage.
Smart Images
Figure CN2026073275_30072026_PF_FP_ABST
Abstract
Claims
1. A compressor for use in an air conditioning system, the air conditioning system comprising a refrigerant, an evaporator, a condenser, a throttling device, and the compressor, wherein the rated cooling capacity CC of the air conditioning system satisfies the relationship: 2500W ≤ CC ≤ 3700W, and the compressor comprises a vertical variable frequency scroll compressor, characterized in that, The compressor also includes: The housing (10) has a receiving cavity (101), and the bottom of the receiving cavity (101) is provided with an oil storage space (102) for storing lubricating oil. The motor (20) is disposed in the accommodating cavity (101), and the motor (20) includes a rotor (21) and a stator (22) sleeved on the outer periphery of the rotor (21); A pump body assembly (30) is disposed within the receiving cavity (101) and near the bottom of the receiving cavity (101). The pump body assembly (30) includes a crankshaft (31), a stationary scroll plate (32), a moving scroll plate (33), a bracket (34), and an anti-rotation device (35). The crankshaft (31) is rotatably disposed within the receiving cavity (101), and the crankshaft (31) passes through the motor (20). The static scroll plate (32), the moving scroll plate (33), and the support (34) are described. The static scroll plate (32) is provided with a first scroll tooth (321) on the side near the moving scroll plate (33). The moving scroll plate (33) is provided with a second scroll tooth (331) that meshes with the first scroll tooth (321). The first scroll tooth (321) and the second scroll tooth (331) mesh to form a compression cavity (301). The stationary scroll plate (32) has a first bearing portion (322) on the side opposite to the moving scroll plate (33), and the first bearing portion (322) has a first bearing hole (3221). The bracket (34) has a second bearing portion (341) on the side opposite to the moving scroll plate (33), and the second bearing portion (341) has a second bearing hole (3411). The moving scroll plate (33) has an eccentric bearing hole (332). The crankshaft (31) includes a first shaft section (311), an eccentric section (312), and a second shaft section (313). The first shaft section (311), the eccentric section (312), and the second shaft section (313) run along the crankshaft (33). 1) The axes are arranged sequentially, the motor (20) is sleeved on the first shaft segment (311), the stationary scroll plate (32) is sleeved on the side of the first shaft segment (311) near the eccentric segment (312) or the side of the second shaft segment (313) near the eccentric segment (312) through the first bearing hole (3221), the moving scroll plate (33) is sleeved on the eccentric segment (312) through the eccentric bearing hole (332), and the bracket (34) is sleeved on the side of the first shaft segment (311) near the eccentric segment (312) or the side of the second shaft segment (313) near the eccentric segment (312) through the second bearing hole (3411).
2. The compressor for use in an air conditioning system according to claim 1, characterized in that, The maximum radial dimension D1 of the stator (22) satisfies the following relationship: 96mm ≤ D1 ≤ 104mm; and / or, The maximum radial dimension D2 of the moving scroll disk (33) satisfies the following relationship: 76mm≤D2≤84mm.
3. The compressor for use in an air conditioning system according to claim 1, characterized in that, The maximum radial dimension D1 of the stator (22) satisfies the following relationship: 98mm ≤ D1 ≤ 102mm; and / or, The maximum radial dimension D2 of the moving scroll disk (33) satisfies the following relationship: 78mm≤D2≤82mm.
4. The compressor for use in an air conditioning system according to claim 1, characterized in that, The diameter D3 of the eccentric bearing hole (332) satisfies the following relationship: 14mm≤D3≤18mm.
5. The compressor for use in an air conditioning system according to claim 1, characterized in that, The second vortex tooth (331) is spirally arranged around the outer periphery of the eccentric bearing hole (332). The second vortex tooth (331) includes a vortex bearing (333), a first vortex head end (334), a first vortex body (335), and a first vortex tail end (336). The vortex bearing (333), the first vortex head end (334), the first vortex body (335), and the first vortex tail end (336) are arranged sequentially along the spiral direction of the second vortex tooth (331). The vortex bearing (333) has the eccentric bearing hole (332).
6. The compressor for use in an air conditioning system according to claim 5, characterized in that, Starting from the center of the eccentric bearing hole (332), draw a tangent OA to the end of the first vortex head (334), and starting from the center of the eccentric bearing hole (332), draw a tangent OB to the end of the first vortex tail (336). Along the spiral winding direction from the first vortex head (334) to the first vortex tail (336), the included angle θ1 between OA and OB satisfies the relationship: 220°≤θ1≤330°.
7. The compressor for use in an air conditioning system according to claim 5, characterized in that, Starting from the center of the eccentric bearing hole (332), draw a tangent OA to the end of the first vortex head (334), and starting from the center of the eccentric bearing hole (332), draw a tangent OB to the end of the first vortex tail (336). Along the spiral winding direction from the first vortex head (334) to the first vortex tail (336), the included angle θ1 between OA and OB satisfies the relationship: 240°≤θ1≤310°.
8. The compressor for use in an air conditioning system according to claim 5, wherein The minimum distance between the side of the first vortex tail end (336) near the outer edge of the moving vortex disk (33) and the outer edge of the moving vortex disk (33) is S1; The reverse extension of the tangent OB between the center of the eccentric bearing hole (332) and the end of the first vortex tail (336) is OC. OC has multiple first intersection points with the first vortex body (335). The minimum distance between the first intersection point farther from the center of the eccentric bearing hole (332) and the outer edge of the moving vortex disk (33) is S2. Among them, S1 and S2 satisfy the relationship: |S1-S2|≤1.5mm.
9. The compressor for use in an air conditioning system according to claim 5, characterized in that, The point closest to the first vortex head end (334) and the eccentric bearing hole (332) is D, and the line connecting point D and the center of the eccentric bearing hole (332) is OD; The intersection point E between the reverse extension of OD and the outer wall of the vortex bearing (333); Among them, the minimum distance between point D and the eccentric bearing hole (332) is G1, and the minimum distance between point E and the eccentric bearing hole (332) is G2. G1 and G2 satisfy the relationship: |G1-G2|≤1.5mm.
10. The compressor for use in an air conditioning system according to claim 1, characterized in that, The first vortex tooth (321) is spirally arranged around the outer periphery of the first bearing hole (3221). The minimum distance S between the side wall of the first vortex tooth (321) near the center of the first bearing hole (3221) and the outer edge of the moving vortex disk (33) satisfies the relationship: 1.5mm≤S≤3.5mm.
11. The compressor for use in an air conditioning system according to claim 1, characterized in that, The minimum distance G between the hole wall of the eccentric bearing hole (332) and the inner wall surface of the second vortex tooth (331) near the eccentric bearing hole (332) satisfies the following relationship: 1.5mm≤G≤3.5mm.
12. The compressor for use in an air conditioning system according to claim 1, characterized in that, The vortex profile of the second vortex tooth (331) includes the involute of the base circle (337).
13. The compressor for use in an air conditioning system according to claim 12, characterized in that, There is a predetermined distance C between the center point of the base circle (337) of the vortex profile and the center point of the eccentric bearing hole (332), wherein C satisfies the relationship: C≥2mm.
14. The compressor for use in an air conditioning system according to claim 1, characterized in that, One of the static vortex disk (32) and the bracket (34) is provided with a threaded hole (40) adapted to the locking member, and the other is provided with a through hole (50) for the locking member to pass through. The threaded hole (40) and a plurality of through holes (50) are provided correspondingly, and the locking member passes through both the corresponding threaded hole (40) and the through hole (50).
15. The compressor for use in an air conditioning system according to claim 14, characterized in that, When the pump body assembly (30) is working, the minimum radial distance S3 between the outer edge of the moving scroll disk (33) and the through hole (50) satisfies the following relationship: 1.8mm≤S3≤2.8mm.
16. The compressor for use in an air conditioning system according to claim 14, characterized in that, The diameter D4 of the through hole (50) satisfies the following relationship: D4≤4.6mm.
17. The compressor for use in an air conditioning system according to claim 14, characterized in that, The threaded hole (40) and the through hole (50) each include at least five, and each threaded hole (40) is provided in a one-to-one correspondence with each through hole (50); At least five of the threaded holes (40) are spaced circumferentially along the crankshaft (31) on the stationary scroll plate (32), and at least five of the through holes (50) are spaced circumferentially along the crankshaft (31) on the bracket (34); or, At least five of the threaded holes (40) are spaced apart on the bracket (34) along the circumference of the crankshaft (31), and at least five of the through holes (50) are spaced apart on the stationary scroll plate (32) along the circumference of the crankshaft (31).
18. The compressor for use in an air conditioning system according to claim 1, characterized in that, The stationary scroll plate (32) has an exhaust port (323) that connects the accommodating cavity (101) and the compression cavity (301). The stationary scroll plate (32) is located on the side of the moving scroll plate (33) near the motor (20), and the bracket (34) is located on the side of the moving scroll plate (33) away from the motor (20).
19. The compressor for use in an air conditioning system according to claim 1, characterized in that, The refrigerant includes R32 refrigerant or R290; Wherein, when the refrigerant includes R32 refrigerant, the displacement V1 of the compressor satisfies the relationship: 8cm3≤V1≤12cm3; or, When the refrigerant includes R290, the displacement V2 of the compressor satisfies the following relationship: 16cm3≤V2≤24cm3.
20. The compressor for use in an air conditioning system according to claim 1, characterized in that, The compressor also includes a liquid reservoir (60), and the housing (10) has an air inlet (11) and an air outlet (12). The air inlet (11) is connected to the liquid reservoir (60) and the compression chamber (301), and the air outlet (12) is connected to the accommodating chamber (101) and the outside. The liquid storage volume V3 of the liquid reservoir (60) satisfies the relationship 300mL≤V3≤500mL.
21. The compressor for use in an air conditioning system according to claim 1, characterized in that, The anti-rotation device (35) includes a cross slip ring, which is installed between the moving scroll plate (33) and the bracket (34); and / or, The housing (10) is provided with wiring terminals (70) for connecting the motor (20) and an external power supply.
22. An air conditioning system, characterized in that, The air conditioning system includes the compressor used in the air conditioning system as described in any one of claims 1 to 21.