Gas compressor with rotor structure
By introducing insulating resin sheets, mica tape, and epoxy resin pads into the rotor structure, combined with insulating inserts, the problem of electrical flow on the surface of the coils at both ends of the rotor is solved, achieving better insulation and stable connection, and improving the overall practicality of the gas compressor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI SHENZHOULONG GAS TECH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-04-28
AI Technical Summary
In existing rotary gas compressors, insulation is mostly achieved through insulating paper when the rotor and stator are fitted together. However, electrical current may still exist on the surface of the coils at both ends of the rotor, making it difficult to achieve all-round insulation.
The structure employs insulating resin sheets, mica tape, and epoxy resin pads, combined with insulating inserts, to form a multi-layered insulation layer, enhancing the insulation effect at both ends of the rotor. It is then stably connected to the positioning bolts via mounting plates and clips.
The insulation effect at both ends of the rotor is improved, enhancing the overall practicality and facilitating disassembly and installation, thus achieving comprehensive insulation treatment.
Smart Images

Figure CN224174264U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rotor gas compression technology, specifically a rotor-structured gas compressor. Background Technology
[0002] Rotary compressors are driven by an engine or electric motor, with one rotor driven by an oil film formed by oil injection from the main rotor, or by synchronous gears at the ends of the main rotor and the concave rotor.
[0003] Current rotary gas compressors require the cooperation of the rotor and stator to operate normally. However, the current method of rotor insulation mostly involves inserting insulating paper into the slots inside the rotor. Although this method can prevent electrical flow between the coil and the rotor, electrical flow may still exist on the surface of the coil at both ends of the rotor. Therefore, the method of insulation by inserting insulating paper is not very practical and is difficult to achieve comprehensive insulation.
[0004] Therefore, this utility model provides a gas compressor with a rotor structure. Utility Model Content
[0005] To overcome the shortcomings of existing technologies and address the issue that current rotor-structured gas compressors require the cooperation of the rotor and stator for normal operation, and that the current method of rotor insulation mostly involves inserting insulating paper into the slots inside the rotor, this method, while preventing electrical flow between the coils and the rotor, still allows electrical flow to the coil surfaces at both ends of the rotor. Therefore, the overall practicality of insulation by inserting insulating paper is poor, and it is difficult to achieve comprehensive insulation. This utility model proposes a rotor-structured gas compressor.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a gas compressor with a rotor structure, comprising a compressor body, a liquid storage pipe fixed at the top of the compressor body, a suction pipe connected to one end of the liquid storage pipe, and an air inlet pipe connected to the other end of the liquid storage pipe.
[0007] The compressor body has a drive structure inside its cavity, and the output end of the drive structure is connected to a rotating shaft. A retaining strip is fixed on the outer surface of the rotating shaft, and a bolt hole is opened at one end of the retaining strip. A rotor is sleeved on the outer side of the rotating shaft. A stator is fixed on the inner side wall of the compressor body. An insulating resin sheet is connected to one end of the rotor, and a mica tape is connected to the other end of the insulating resin sheet. An epoxy resin pad is connected to the end of the mica tape away from the insulating resin sheet, and a groove is opened on one side of the epoxy resin pad.
[0008] Furthermore, an installation plate is distributed on the side of the epoxy resin pad away from the mica tape, and a gasket is fixed on the side wall of the installation plate. A locking block is distributed on one side of the gasket, and a positioning bolt passes through the inner side of the locking block.
[0009] Furthermore, the locking strips are symmetrically distributed along the vertical center line of the rotating shaft, and the bolt holes are symmetrically distributed at both ends of the locking strips.
[0010] Furthermore, the inner wall of the rotor is provided with a slot whose diameter is adapted to the outer diameter of the clip, and the rotor is engaged with the rotating shaft through the clip.
[0011] Furthermore, the insulating resin sheet is distributed in a flat shape with the mica tape and the epoxy resin pad, and the insulating resin sheet, the mica tape and the epoxy resin pad are symmetrically distributed at both ends of the rotor.
[0012] Furthermore, the inner diameter of the groove is adapted to the outer diameter of the gasket ring, and the groove and the epoxy resin pad form an integrated structure.
[0013] Furthermore, the locking blocks are symmetrically distributed along the vertical center line of the mounting plate, and the inner side of each locking block has a through hole with a size that matches the positioning bolt.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The gas compressor with a rotor structure described in this utility model can easily achieve subsequent insulation treatment at both ends of the rotor by setting up insulating resin sheets, mica tape and epoxy resin pads, thereby improving the insulation effect of the entire rotor. Combined with the existing insulation method of inserting insulating paper, it not only has a better insulation effect, but also has higher overall practicality.
[0016] 2. The gas compressor with a rotor structure described in this utility model can easily achieve a stable connection between the insulation structure and the rotor through the installation plate, clamping block and positioning bolts, which not only facilitates the subsequent all-round insulation treatment of the rotor, but also makes it easy to disassemble. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a side view of the rotor structure in this utility model;
[0020] Figure 3This is a schematic diagram of the internal structure of the compressor body in this utility model;
[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the compressor body in this utility model;
[0022] Figure 5 This is a side view of the rotor structure in this utility model;
[0023] In the diagram: 1. Compressor body; 2. Liquid receiver pipe; 3. Suction pipe; 4. Inlet pipe; 5. Drive structure; 6. Shaft; 7. Clamping strip; 8. Bolt hole; 9. Rotor; 10. Stator; 11. Insulating resin sheet; 12. Mica tape; 13. Epoxy resin pad; 14. Groove; 15. Mounting plate; 16. Washer ring; 17. Clamping block; 18. Positioning bolt. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] Example 1:
[0026] like Figures 1 to 5 As shown, a rotary structure gas compressor of this utility model includes a compressor body 1, a liquid storage pipe 2 fixed at the top of the compressor body 1, a suction pipe 3 connected to one end of the liquid storage pipe 2, and an air inlet pipe 4 connected to the other end of the liquid storage pipe 2.
[0027] The compressor body 1 has a drive structure 5 in its inner cavity, and the output end of the drive structure 5 is connected to a rotating shaft 6. A retaining strip 7 is fixed on the outer surface of the rotating shaft 6, and a bolt hole 8 is opened at one end of the retaining strip 7. A rotor 9 is sleeved on the outer side of the rotating shaft 6. A stator 10 is fixed on the inner side wall of the compressor body 1. An insulating resin sheet 11 is connected to one end of the rotor 9, and a mica tape 12 is connected to the other end of the insulating resin sheet 11. An epoxy resin pad 13 is connected to the end of the mica tape 12 away from the insulating resin sheet 11, and a groove 14 is opened on one side of the epoxy resin pad 13.
[0028] During operation, firstly, the rotor 9 is fitted onto the outer surface of the rotating shaft 6. Since the inner wall of the rotor 9 has a slot with a diameter matching the retaining strip 7, this slot facilitates the engagement between the rotating shaft 6 and the rotor 9, allowing the rotor 9 to move by rotating the shaft 6. Then, the insulating resin sheet 11 is fitted onto the outer side of the rotating shaft 6, and then pushed laterally so that one end contacts one end of the rotor 9. Next, the mica tape 12 is placed on one side of the insulating resin sheet 11, adhering to it. Finally, the epoxy resin pad 13 is fitted onto the outer side of the rotating shaft 6, and then pushed laterally to adhere to the mica tape 12. Thus, the insulating resin sheet 11, mica tape 12, and epoxy resin pad 13 effectively... It serves the purpose of insulation and also protects the copper wire wound in the winding groove. When the gas compressor is working, after the insulation structure is installed, the mounting plate 15 can be snapped into one side of the epoxy resin pad 13, and the locking block 17 can penetrate the groove opened in the inner wall of the insulating resin sheet 11, mica tape 12 and epoxy resin pad 13 to contact the locking strip 7, so as to facilitate the subsequent positioning of the mounting plate 15 and other structures using the positioning bolts 18. During operation, the suction pipe 3 works to input gas into the inner side of the compressor body 1 through the intake pipe 4, and then the drive structure 5 works to make the rotating shaft 6 connected to its output end rotate, so as to facilitate the rotation of the rotor 9 by the rotation of the rotating shaft 6. The rotation of the rotor 9, together with the stator 10, can realize the normal operation of the entire gas compressor.
[0029] Furthermore, an installation plate 15 is distributed on the side of the epoxy resin pad 13 away from the mica tape 12, and a gasket 16 is fixed on the side wall of the installation plate 15. A locking block 17 is distributed on one side of the gasket 16, and a positioning bolt 18 passes through the inner side of the locking block 17.
[0030] During operation, the mounting plate 15 is first fitted onto the outside of the rotating shaft 6. Then, the mounting plate 15 is pushed laterally, causing it to move laterally. As the mounting plate 15 moves laterally, the washer ring 16 fixed on its side wall also moves laterally, allowing the washer ring 16 to be inserted into the inside of the groove 14. This facilitates better positioning of the epoxy resin pad 13 and other structures. At the same time, the locking block 17 passes through the inner side of the insulating resin sheet 11, mica tape 12, and epoxy resin pad 13 and contacts one end of the locking strip 7. Then, the positioning bolt 18 passes through the inner side of the locking block 17 and extends into the bolt hole 8 on one end of the locking strip 7. This achieves the positioning of the insulating resin sheet 11, mica tape 12, and epoxy resin pad 13, ensuring their stability during the subsequent rotation of the rotor 9 and facilitating subsequent disassembly, thus improving overall practicality.
[0031] Furthermore, the clips 7 are symmetrically distributed along the vertical center line of the rotating shaft 6, and the bolt holes 8 are symmetrically distributed at both ends of the clips 7;
[0032] During operation, the symmetrically arranged locking strips 7 can be used to facilitate the subsequent engagement connection between the rotor 9 and the rotating shaft 6. When the positioning bolt 18 is inserted into the inner side of the bolt hole 8, the subsequent connection between the mounting plate 15 and the rotor 9 can be achieved, and the two ends of the rotor 9 are insulated.
[0033] Furthermore, the inner sidewall of the rotor 9 is provided with a slot whose diameter is adapted to the outer diameter of the retaining strip 7, and the rotor 9 is engaged with the rotating shaft 6 through the retaining strip 7.
[0034] During operation, the rotor 9 is engaged with the outside of the rotating shaft 6, and then engaged with the retaining strip 7 through the slot opened on the inner side wall of the rotor 9, so that the rotor 9 can be driven to rotate when the rotating shaft 6 rotates.
[0035] Furthermore, the insulating resin sheet 11 is distributed in a flat shape with the mica tape 12 and the epoxy resin pad 13, and the insulating resin sheet 11, the mica tape 12 and the epoxy resin pad 13 are symmetrically distributed at both ends of the rotor 9.
[0036] During operation, the stacking of insulating resin sheet 11, mica tape 12 and epoxy resin pad 13 facilitates better subsequent insulation protection of both ends of rotor 9.
[0037] Furthermore, the inner diameter of the groove 14 is adapted to the outer diameter of the gasket 16, and the groove 14 and the epoxy resin gasket 13 form an integrated structure.
[0038] During operation, when the mounting plate 15 is engaged with the epoxy resin pad 13, the pad ring 16 will be engaged inside the groove 14, which facilitates better positioning of the epoxy resin pad 13 and also provides simple protection for the epoxy resin pad 13.
[0039] Furthermore, the locking blocks 17 are symmetrically distributed along the vertical center line of the mounting plate 15, and the inner side of the locking blocks 17 is provided with through holes of a size that are compatible with the positioning bolts 18.
[0040] During operation, since the locking blocks 17 are symmetrically distributed on one side of the mounting plate 15, and the locking blocks 17 are compatible with the slots opened on the inner sidewalls of the insulating resin sheet 11, mica tape 12 and epoxy resin pad 13, when the mounting plate 15 drives the locking blocks 17 to connect with the locking strips 7 fixed on the surface of the rotating shaft 6, it is convenient to perform subsequent positioning processing of the insulating resin sheet 11, mica tape 12 and epoxy resin pad 13.
[0041] Specific working principle:
[0042] First, the rotor 9 is fitted onto the outer surface of the rotating shaft 6, and connected to the rotating shaft 6 via the retaining strip 7, facilitating the subsequent movement of the rotor 9 by rotating the shaft 6. Then, the insulating resin sheet 11 is fitted onto the outside of the rotating shaft 6, and then pushed laterally so that one end of the insulating resin sheet 11 contacts one end surface of the rotor 9. Next, the mica tape 12 is placed on one side of the insulating resin sheet 11, adhering to it. Then, the epoxy resin pad 13 is fitted onto the outside of the rotating shaft 6, and pushed laterally so that it adheres to the mica tape 12. Thus, the insulating resin sheet 11, mica tape 12, and epoxy resin pad 13 effectively achieve insulation, while also protecting the winding groove. The copper wire is protected. When the gas compressor is working, after the insulation structure is installed, the mounting plate 15 can be snapped into one side of the epoxy resin pad 13, and the locking block 17 can penetrate the groove opened in the inner wall of the insulating resin sheet 11, mica tape 12 and epoxy resin pad 13 to contact the locking strip 7, so as to facilitate the subsequent positioning treatment of the mounting plate 15 and other structures by using the positioning bolts 18. When working, the suction pipe 3 works to input gas into the inner side of the compressor body 1 through the intake pipe 4, and then the drive structure 5 works to make the rotating shaft 6 connected to its output end rotate, so as to facilitate the subsequent rotation of the rotor 9 by using the rotation of the rotating shaft 6. The rotation of the rotor 9, together with the stator 10, can realize the normal operation of the entire gas compressor.
[0043] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A gas compressor with a rotor structure, characterized in that, It includes a compressor body (1), a liquid storage pipe (2) fixed at the top of the compressor body (1), a suction pipe (3) connected to one end of the liquid storage pipe (2), and an air inlet pipe (4) connected to the other end of the liquid storage pipe (2); The compressor body (1) has a drive structure (5) in its inner cavity, and the output end of the drive structure (5) is connected to a rotating shaft (6). The outer surface of the rotating shaft (6) is fixed with a retaining strip (7), and one end of the retaining strip (7) is provided with a bolt hole (8). The outer side of the rotating shaft (6) is fitted with a rotor (9). The inner side wall of the compressor body (1) is fixed with a stator (10). One end of the rotor (9) is connected with an insulating resin sheet (11), and the other end of the insulating resin sheet (11) is connected with a mica tape (12). The end of the mica tape (12) away from the insulating resin sheet (11) is connected with an epoxy resin pad (13), and one side of the epoxy resin pad (13) is provided with a groove (14).
2. A gas compressor with a rotor structure according to claim 1, characterized in that, The epoxy resin pad (13) has a mounting plate (15) distributed on the side away from the mica tape (12), and a gasket (16) is fixed on the side wall of the mounting plate (15). A locking block (17) is distributed on one side of the gasket (16), and a positioning bolt (18) passes through the inner side of the locking block (17).
3. A gas compressor with a rotor structure according to claim 1, characterized in that, The locking strips (7) are symmetrically distributed along the vertical center line of the rotating shaft (6), and the bolt holes (8) are symmetrically distributed at both ends of the locking strips (7).
4. A gas compressor with a rotor structure according to claim 1, characterized in that, The inner wall of the rotor (9) has a slot with a diameter that matches the outer diameter of the clip (7), and the rotor (9) is engaged with the shaft (6) through the clip (7).
5. A gas compressor with a rotor structure according to claim 1, characterized in that, The insulating resin sheet (11) is distributed in a flat shape with the mica tape (12) and the epoxy resin pad (13), and the insulating resin sheet (11), the mica tape (12) and the epoxy resin pad (13) are symmetrically distributed at both ends of the rotor (9).
6. A gas compressor with a rotor structure according to claim 2, characterized in that, The inner diameter of the groove (14) is adapted to the outer diameter of the gasket (16), and the groove (14) and the epoxy resin pad (13) form an integrated structure.
7. A gas compressor with a rotor structure according to claim 2, characterized in that, The locking blocks (17) are symmetrically distributed along the vertical center line of the mounting plate (15), and the inner side of the locking blocks (17) is provided with through holes of a size that are compatible with the positioning bolts (18).