Rotary compressor and heating and ventilation device
By optimizing the relationship between the thickness of the intermediate plate and the pump body structure displacement, the problems of material waste and mechanical failure caused by the fixed thickness of the intermediate plate in existing compressors have been solved, the intermediate plate has been made universal, the compressor's flexibility has been improved and the manufacturing cost has been reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PANASONIC WANBAO GUANGZHOU COMPRESSOR
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-19
AI Technical Summary
The fixed thickness of the intermediate plate in the current compressor design leads to unreasonable material use, waste and mechanical failure risks, increased manufacturing costs, and insufficient flexibility and adaptability.
By optimizing the relationship between the thickness of the intermediate plate and the pump body structure displacement, the thickness of the intermediate plate is designed to meet the condition 28×ln(H)-47.5≤V≤28×ln(H)-25, thus achieving the universality of the intermediate plate and making it suitable for multiple different displacement requirements.
It improves the design flexibility and response speed of the compressor, reduces the number of different specifications of boards, simplifies inventory management and reduces manufacturing costs.
Smart Images
Figure CN224380101U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, and in particular to a rotary compressor and heating and ventilation equipment. Background Technology
[0002] A compressor generally consists of a compressor housing, a pump body, a stator, a rotor, and a receiver. During the compression process of the refrigerant in the pump body, the refrigeration oil dissolves in the refrigerant. The refrigerant mixed with the refrigeration oil then passes through the refrigerant passages between the stator and rotor, the space above the stator, and finally exits the compressor from the exhaust port at the top of the compressor housing.
[0003] Currently, in existing compressor designs, the thickness of the intermediate plate slot is fixed, which limits the compressor's flexibility and adaptability under different operating conditions. Because the thickness of the intermediate plate lacks consideration of the displacement, the use of materials is unreasonable, resulting in material waste and mechanical failure risks, and manufacturing costs also increase accordingly. Utility Model Content
[0004] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a rotary compressor and HVAC equipment. By optimizing the selection of the thickness of the intermediate plate, the versatility of the intermediate plate for different displacements can be improved, ensuring the performance of the compressor while reducing the number of different specifications of plates, simplifying inventory management and manufacturing costs.
[0005] To achieve the above objectives, a first aspect of this utility model provides a rotary compressor, including a compressor housing and a motor and pump structure disposed inside the compressor housing, wherein the motor is drivenly connected to the pump structure; the pump structure includes a first cylinder, an intermediate plate, and a second cylinder arranged sequentially along the axial direction, wherein the intermediate plate separates the first cylinder and the second cylinder;
[0006] The displacement of the pump body structure is denoted as V, which satisfies the relationship: 2.0≤V≤30.0; the thickness of the intermediate plate is denoted as H, which satisfies the relationship: 28×ln(H)-47.5≤V≤28×ln(H)-25; wherein, the unit of the displacement of the pump body structure is cc, and the unit of the thickness of the intermediate plate is mm.
[0007] Therefore, the rotary compressor according to this utility model embodiment, by designing the thickness of the intermediate plate and the displacement of the pump body structure, satisfies the following relationship: 28×ln(H)-47.5≤V≤28×ln(H)-25. In this way, by reasonably selecting the thickness of the intermediate plate, the intermediate plate can be adapted to multiple different displacement values, thereby achieving material universality to meet the needs of different displacements. For example, in the design of the same series of products, using an intermediate plate of the same thickness can adapt to the needs of multiple different displacements, improving the design flexibility and response speed. In addition, while ensuring the performance of the compressor, the number of different specifications of plates can be reduced, thereby effectively simplifying inventory management and reducing manufacturing costs.
[0008] In one implementation, V satisfies the relationship: 8.0 ≤ V ≤ 24.0.
[0009] In one implementation, H satisfies the relationship: 5.86≤H≤15.93.
[0010] In one embodiment, the pump body structure further includes a first bearing and a second bearing. The first bearing is disposed on the first cylinder, and the first bearing and the intermediate plate enclose the first cylinder to form a first compression chamber. The second bearing is disposed on the second cylinder, and the second bearing and the intermediate plate enclose the second cylinder to form a second compression chamber.
[0011] In one embodiment, the pump body structure further includes a first silencer cover and a second silencer cover. The first silencer cover is disposed on the first bearing, and the first silencer cover and the first bearing form a first silencer cavity, which is connected to the first compression cavity. The second silencer cover is disposed on the second bearing, and the second silencer cover and the second bearing form a second silencer cavity, which is connected to the second compression cavity. The pump body structure has a connecting channel that passes through the first bearing, the first cylinder, the intermediate plate, the second cylinder, and the second bearing, and the connecting channel connects the first silencer cavity and the second silencer cavity respectively.
[0012] In one embodiment, a flange is provided on the outer periphery of the first cylinder or the second cylinder, and the flange is connected to the inner peripheral wall of the compressor housing.
[0013] In one embodiment, the compressor housing is a sealed container for storing refrigeration oil, and the pump structure is used to compress the refrigerant.
[0014] As one implementation, the refrigerant compressed by the pump body structure is at least a natural refrigerant, an HFC refrigerant, or an HFO refrigerant.
[0015] In one embodiment, the refrigeration oil is at least one of POE oil and PVE oil, or a mixture thereof.
[0016] A second aspect of this utility model provides a heating, ventilation, and air conditioning (HVAC) device, which includes the rotary compressor described in any of the preceding embodiments. According to this utility model, by optimizing the selection of the thickness of the intermediate plate, the versatility of the intermediate plate for different displacements can be improved, ensuring compressor performance while reducing the number of plates of different specifications, simplifying inventory management and manufacturing costs.
[0017] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description
[0018] Figure 1 This is one of the structural schematic diagrams of the pump body structure of the rotary compressor according to an embodiment of the present utility model;
[0019] Figure 2 This is a second schematic diagram of the pump body structure of the rotary compressor according to an embodiment of the present utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the intermediate plate of the rotary compressor according to an embodiment of the present utility model;
[0021] Figure 4 This is a schematic diagram showing the relationship between the displacement of the rotary compressor and the thickness of the intermediate plate in an embodiment of this utility model.
[0022] Explanation of reference numerals in the attached drawings: 10. Pump body structure; 12. First silencer cover; 13. First bearing; 14. First cylinder; 15. Intermediate plate; 16. Second cylinder; 17. Second bearing; 18. Second silencer cover. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.
[0025] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0026] In related technologies, a compressor generally consists of a compressor housing, a pump body, a stator, a rotor, and a receiver. During the compression process of the refrigerant in the pump body, the refrigeration oil dissolves in the refrigerant. The refrigerant mixed with the refrigeration oil then passes through the refrigerant channels between the stator and rotor, the space above the stator, and finally exits the compressor from the exhaust port at the top of the compressor housing. Currently, in existing compressor designs, the thickness of the intermediate plate slot is fixed, which limits the compressor's flexibility and adaptability under different operating conditions. Because the thickness of the intermediate plate lacks consideration of the displacement, it leads to unreasonable material usage, material waste, and the risk of mechanical failure, and also increases manufacturing costs.
[0027] Therefore, this utility model provides a rotary compressor and HVAC equipment. According to this utility model, by optimizing the selection of the thickness of the intermediate plate, the versatility of the intermediate plate for different displacements can be improved, ensuring compressor performance while reducing the number of plates of different specifications, simplifying inventory management and manufacturing costs.
[0028] Please see Figures 1 to 4The first aspect of this utility model provides a rotary compressor, including a compressor housing and a motor and pump structure 10 disposed inside the compressor housing. The motor is drivenly connected to the pump structure 10. The pump structure 10 includes a first cylinder 14, an intermediate plate 15, and a second cylinder 15 arranged sequentially along the axial direction. The intermediate plate 15 separates the first cylinder 14 and the second cylinder 15. The displacement of the pump structure 10 is denoted as V, which satisfies the relationship: 2.0 ≤ V ≤ 30.0. The thickness of the intermediate plate 15 is denoted as H, which satisfies the relationship: 28 × ln(H) - 47.5 ≤ V ≤ 28 × ln(H) - 25. The unit of the displacement of the pump structure 10 is cc, and the unit of the thickness of the intermediate plate 15 is mm.
[0029] Therefore, the rotary compressor according to this utility model embodiment, by designing the thickness of the intermediate plate 15 and the displacement of the pump body structure 10, satisfies the following relationship between the thickness of the intermediate plate 15 and the displacement of the pump body structure 10: 28×ln(H)-47.5≤V≤28×ln(H)-25. In this way, by reasonably selecting the thickness of the intermediate plate 15, the intermediate plate 15 can be adapted to multiple different displacement values, thereby achieving material universality to meet the needs of different displacements. For example, in the design of the same series of products, using the intermediate plate 15 of the same thickness can adapt to the needs of multiple different displacements, improving the design flexibility and response speed. In addition, while ensuring the performance of the compressor, the number of different specifications of plates can be reduced, thereby effectively simplifying inventory management and reducing manufacturing costs.
[0030] Specifically, when the displacement of the pump body structure 10 in this embodiment of the present invention is 2.0cc, i.e., V = 2, according to the formula 28 × ln(H) - 47.5 ≤ V, when the displacement is minimum, 28 × ln(H) - 47.5 = 2, thus the minimum thickness of the intermediate plate 15 is H = 5.86; when the displacement of the pump body structure 10 in this embodiment of the present invention is 30.0cc, i.e., V = 30, according to the formula 28 × ln(H) - 47.5 ≤ V, when the displacement is maximum, 28 × ln(H) - 47.5 = 30, thus the maximum thickness of the intermediate plate 15 is H = 15.93. Therefore, when the displacement of the pump body structure 10 in this embodiment of the present invention is in the range of 2.0cc to 30.0cc, the thickness of the intermediate plate 15 is correspondingly in the range of 5.86mm to 15.93mm. In this way, by rationally designing the thickness of the intermediate plate 15, designers can flexibly adjust the thickness of the intermediate plate 15 according to specific needs to meet the requirements of different displacements. For example, in the design of the same series of products, using an intermediate plate 15 of the same thickness can adapt to the needs of multiple displacements, improving design flexibility and response speed.
[0031] In this embodiment of the present invention, the pump body structure 10 further includes a first bearing 13 and a second bearing 16. The first bearing 13 is disposed on the first cylinder 14, and the first bearing 13 and the intermediate plate 15 enclose the first cylinder 14 to form a first compression chamber. The second bearing 16 is disposed on the second cylinder 15, and the second bearing 16 and the intermediate plate 15 enclose the second cylinder 15 to form a second compression chamber. In addition, the pump body structure 10 also includes a first silencer cover 12 and a second silencer cover 17. The first silencer cover 12 is disposed on the first bearing 13, and the first silencer cover 12 and the first bearing 13 form a first silencer cavity, which is connected to the first compression cavity. The second silencer cover 17 is disposed on the second bearing 16, and the second silencer cover 17 and the second bearing 16 form a second silencer cavity, which is connected to the second compression cavity. The pump body structure 10 is provided with a connecting channel through the first bearing 13, the first cylinder 14, the intermediate plate 15, the second cylinder 15, and the second bearing 16, and the connecting channel is respectively connected to the first silencer cavity and the second silencer cavity.
[0032] The compressor housing of this embodiment is a sealed container for storing refrigeration oil, and the pump structure 10 is used to compress the refrigerant. The refrigerant compressed by the pump structure 10 is at least a natural refrigerant, an HFC refrigerant, or an HFO refrigerant. Furthermore, the refrigeration oil is at least one of POE oil and PVE oil, or a mixture thereof.
[0033] Optionally, in some embodiments of the present invention, a flange is provided on the outer periphery of the first cylinder 14 or the second cylinder 15, and the flange is connected to the inner peripheral wall of the compressor housing.
[0034] Optionally, in some embodiments of the present invention, the displacement value V of the pump body structure 10 satisfies the relationship: 8.0≤V≤24.0.
[0035] A second aspect of this utility model provides a heating, ventilation, and air conditioning (HVAC) device, which includes the rotary compressor described in any of the preceding embodiments. According to this utility model, by optimizing the thickness selection of the intermediate plate 15, the versatility of the intermediate plate 15 for different displacements can be improved, ensuring compressor performance while reducing the number of different specification plates, simplifying inventory management and manufacturing costs.
[0036] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the rotary compressor and HVAC equipment of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A rotary compressor, characterized in that: The system includes a compressor housing and a motor and pump structure disposed inside the compressor housing. The motor is drivenly connected to the pump structure. The pump structure includes a first cylinder, an intermediate plate, and a second cylinder arranged sequentially along the axial direction. The intermediate plate separates the first cylinder and the second cylinder. The displacement of the pump body structure is denoted as V, which satisfies the relationship: 2.0≤V≤30.0; the thickness of the intermediate plate is denoted as H, which satisfies the relationship: 28×ln(H)-47.5≤V≤28×ln(H)-25; wherein, the unit of the displacement of the pump body structure is cc, and the unit of the thickness of the intermediate plate is mm.
2. The rotary compressor according to claim 1, characterized in that: The V satisfies the relationship: 8.0 ≤ V ≤ 24.
0.
3. The rotary compressor according to claim 1, characterized in that: The condition H satisfies the relationship: 5.86≤H≤15.
93.
4. The rotary compressor according to claim 1, characterized in that: The pump body structure further includes a first bearing and a second bearing. The first bearing is disposed on the first cylinder, and the first bearing and the intermediate plate form a first compression chamber around the first cylinder. The second bearing is disposed on the second cylinder, and the second bearing and the intermediate plate form a second compression chamber around the second cylinder.
5. The rotary compressor according to claim 4, characterized in that: The pump body structure further includes a first silencer cover and a second silencer cover. The first silencer cover is disposed on the first bearing, and the first silencer cover and the first bearing form a first silencer cavity, which is connected to the first compression cavity. The second silencer cover is disposed on the second bearing, and the second silencer cover and the second bearing form a second silencer cavity, which is connected to the second compression cavity. The pump body structure has a connecting channel through the first bearing, the first cylinder, the intermediate plate, the second cylinder, and the second bearing, and the connecting channel connects the first silencer cavity and the second silencer cavity respectively.
6. The rotary compressor according to claim 1, characterized in that: A flange is provided on the outer periphery of the first cylinder or the second cylinder, and the flange is connected to the inner peripheral wall of the compressor housing.
7. The rotary compressor according to claim 1, characterized in that: The compressor housing is a sealed container for storing refrigeration oil, and the pump body structure is used to compress refrigerant.
8. The rotary compressor according to claim 7, characterized in that: The refrigerant compressed by the pump body structure is at least a natural refrigerant, an HFC refrigerant, or an HFO refrigerant.
9. The rotary compressor according to claim 7, characterized in that: The refrigeration oil is at least one of POE oil and PVE oil, or a mixture thereof.
10. A heating, ventilation, and air conditioning (HVAC) device, characterized in that: Including the rotary compressor according to any one of claims 1 to 9.