Machine cover assembly, compressor and air conditioner

Abstract

The utility model discloses a machine cover assembly, a compressor and an air conditioner, the machine cover assembly comprises a machine cover body, an impeller cavity, a motor and a motor, the impeller is rotatably arranged in the impeller cavity; wherein the machine cover body is provided with a flexible part used for cutting the edge of the impeller on the inner wall of the impeller cavity, and the hardness of the flexible part is smaller than that of the outer edge of the impeller. According to the machine cover assembly, the flexible part with the small hardness is arranged between the machine cover body and the impeller, the outer edge of the impeller cuts the flexible part, so that the gap matched with the impeller in shape is formed between the impeller and the machine cover body, and the working efficiency of the impeller is guaranteed while the gap is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a cover assembly, a compressor and an air conditioner. Background Art

[0002] In related technologies, since the air compressor operates at a high speed, an open impeller is generally used for the impeller, forming a certain gap between the impeller and the cover. The size of this gap directly affects the efficiency of the impeller. If the gap is too small, the cover will cause friction on the impeller, affecting the rotation of the impeller. If the gap is too large, it will affect the compression efficiency of the impeller. Therefore, how to reduce the gap while ensuring the working efficiency of the impeller has become an urgent problem to be solved in this field. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a cover assembly. The cover assembly of the present application comprises a flexible portion with relatively low hardness disposed between the cover body and the impeller. The flexible portion is then cut along the outer edge of the impeller to form a gap between the impeller and the cover body that matches the shape of the impeller. This gap is reduced while maintaining the operating efficiency of the impeller.

[0004] The utility model also provides a compressor having the cover assembly.

[0005] The utility model also provides an air conditioner with the compressor.

[0006] According to the utility model, the machine cover assembly includes: a machine cover body, an impeller cavity is formed in the machine cover body; an impeller is rotatably arranged in the impeller cavity; wherein the machine cover body is formed with a flexible portion on the inner wall of the impeller cavity for edge cutting of the impeller, and the hardness of the flexible portion is less than the hardness of the outer edge of the impeller.

[0007] According to the utility model, a flexible part is provided between the cover body and the impeller in the cover assembly. The hardness of the flexible part is less than the hardness of the outer edge of the impeller. During the rotation of the impeller, the outer edge of the impeller can cut the flexible part to form a gap between the impeller and the flexible part that adapts to the shape of the impeller, thereby reducing the gap between the impeller and the cover body, avoiding the friction of the cover body on the impeller, and ensuring the working efficiency of the impeller.

[0008] According to some embodiments of the present invention, the cover body includes: a channel portion, an air intake channel is formed in the channel portion and is arranged opposite to the impeller, and the inner wall of the channel portion forms the flexible portion; a volute, the volute is arranged around the outer periphery of the channel portion, an impeller chamber connected to the air intake channel is formed inside the volute, and the impeller is arranged in the impeller chamber.

[0009] According to some embodiments of the present invention, the outer edge of the impeller is constructed as an arc extending away from the channel portion and concave toward the center, and the flexible portion is arranged around the side of the channel portion facing the impeller and forms an arc surface convex toward the outer edge of the impeller.

[0010] According to some embodiments of the present invention, the flexible portion and the channel portion are integrally formed.

[0011] According to some embodiments of the present invention, the flexible portion is detachably connected to the channel portion.

[0012] According to some embodiments of the present invention, a coating layer is formed on the inner surface of the channel portion, the coating layer is configured as the flexible portion, and the material of the coating layer is tetrafluoroethylene.

[0013] According to some embodiments of the present invention, the thickness of the coating layer is d and satisfies 0<d≤5mm.

[0014] According to some embodiments of the present invention, the flexible portion is configured as a plastic part.

[0015] The following briefly describes a compressor according to another embodiment of the present invention.

[0016] The compressor according to the present invention has the cover assembly described in any one of the above embodiments. Since the compressor according to the present invention has the cover assembly described in any one of the above embodiments, the impeller in the compressor has higher working efficiency and the compressor is more efficient.

[0017] The air conditioner according to the present invention is briefly described below.

[0018] The air conditioner according to the present invention includes the compressor described in any one of the above embodiments. Since the air conditioner according to the present invention includes the compressor described in any one of the above embodiments, the working efficiency of the air conditioner is higher.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic structural diagram of a cover assembly according to some embodiments of the present utility model;

[0022] Figure 2 yes Figure 1AA cross-section diagram in.

[0023] Reference numerals:

[0024] Cover assembly 1;

[0025] Cover body 11, channel portion 111, volute 112;

[0026] impeller 12; flexible portion 13. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In related technologies, since the air compressor operates at a high speed, an open impeller is generally used for the impeller, forming a certain gap between the impeller and the cover. The size of this gap directly affects the efficiency of the impeller. If the gap is too small, the cover will cause friction on the impeller, affecting the rotation of the impeller. If the gap is too large, it will affect the compression efficiency of the impeller. Therefore, how to reduce the gap while ensuring the working efficiency of the impeller has become an urgent problem to be solved in this field.

[0029] Reference below Figure 1-Figure 2 A cover assembly according to an embodiment of the present invention is described.

[0030] According to the utility model, the cover assembly 1 includes: a cover body 11, in which an impeller 12 cavity is formed; an impeller 12, which is rotatably arranged in the impeller 12 cavity; wherein, the cover body 11 has a flexible portion 13 formed on the inner wall of the impeller 12 cavity for edge cutting of the impeller 12, and the hardness of the flexible portion 13 is less than the hardness of the outer edge of the impeller 12.

[0031] Specifically, an impeller 12 cavity is formed inside the cover body 11, and the impeller 12 is rotatably arranged in the impeller 12 cavity. The impeller 12 promotes the gas flow by the rotation of the blades. To ensure the rotation efficiency of the impeller 12, a gap needs to be reserved between the impeller 12 and the cover body 11 to prevent the cover body 11 from blocking the rotation of the impeller 12. A flexible portion 13 is formed on the inner wall of the cover body 11. The hardness of the flexible portion 13 is less than the hardness of the outer edge of the impeller 12. During the rotation of the impeller 12, the outer edge of the impeller 12 can cut the flexible portion 13, which allows a smaller gap to be reserved between the impeller 12 and the cover body 11 during installation, or the outer edge of the impeller 12 is stopped against the flexible portion 13. As the impeller 12 rotates, a suitable gap can be formed between the impeller 12 and the cover body 11 by relying on the cutting action of the impeller 12 on the flexible portion 13, which can not only avoid the friction of the cover body 11 on the impeller 12, but also ensure the efficiency of the impeller 12.

[0032] Among them, the flexible part 13 can be arranged at a position of the cover body 11 close to the impeller 12. The hardness of the flexible part 13 is less than the hardness of the outer edge of the impeller 12, so that the impeller 12 can form a shape that adapts to the impeller 12 on the inner side of the flexible part 13 through cutting, thereby ensuring the efficiency of the impeller 12. The rest of the cover body 11 can be constructed of hard materials to ensure the overall strength of the cover body 11; the overall hardness of the cover body 11 can be less than the hardness of the impeller 12, so that an adaptive gap can be formed between the impeller 12 and the cover body 11 through cutting of the impeller 12.

[0033] According to the cover assembly 1 of the present invention, a flexible portion 13 is provided between the cover body 11 and the impeller 12. The hardness of the flexible portion 13 is less than the hardness of the outer edge of the impeller 12. During the rotation of the impeller 12, the outer edge of the impeller 12 can cut the flexible portion 13 to form a gap between the impeller 12 and the flexible portion 13 that adapts to the shape of the impeller 12, thereby reducing the gap between the impeller 12 and the cover body 11, avoiding the friction of the cover body 11 on the impeller 12, and ensuring the working efficiency of the impeller 12.

[0034] According to some embodiments of the present invention, the cover body 11 includes: a channel portion 111, an air intake channel is formed in the channel portion 111 and is arranged opposite to the impeller 12, and the inner wall of the channel portion 111 forms a flexible portion 13; a volute 112, the volute 112 is arranged around the outer periphery of the channel portion 111, and an impeller 12 cavity connected to the air intake channel is formed inside the volute 112, and the impeller 12 is arranged in the impeller 12 cavity.

[0035] Specifically, an air intake channel is formed inside the channel portion 111, and air can enter the impeller 12 cavity through the air intake channel, and the airflow is pushed by the rotation of the impeller 12. The channel portion 111 is directly opposite to the impeller 12, so that the airflow can directly impact the blades of the impeller 12 after passing through the air intake channel, thereby improving the efficiency of the impeller 12. The inner wall of the channel portion 111 forms a flexible portion 13, which reduces the gap between the flexible portion 13 and the impeller 12, making the arrangement between the impeller 12 and the cover body 11 tighter. The volute 112 is arranged around the outer periphery of the channel portion 111. The main function of the volute 112 is to guide the flow direction of the airflow in the impeller 12 cavity, collect the airflow accelerated by the impeller 12 and transport the airflow. The impeller 12 cavity is formed inside the volute 112, and the impeller 12 cavity is connected to the air intake channel of the channel portion 111, ensuring that the fluid can smoothly enter and be accelerated by the impeller 12. The canopy assembly 1 achieves smooth airflow entry, acceleration, and deflection through the ingenious combination of the channel portion 111 and the volute 112. The hardness of the flexible portion 13 formed on the inner wall of the channel portion 111 is less than that of the outer edge of the impeller 12. The impeller 12 can cut the flexible portion 13 through its outer edge to form an adaptive gap between the flexible portion 13 and the impeller 12, reducing friction between the canopy body 11 and the impeller 12 and ensuring its operating efficiency.

[0036] According to some embodiments of the present invention, the outer edge of the impeller 12 is constructed as an arc extending away from the channel portion 111 and concave toward the center, and the flexible portion 13 is arranged around the side of the channel portion 111 facing the impeller 12 and forms an arc surface convex toward the outer edge of the impeller 12.

[0037] Specifically, the outer edge of impeller 12 extends away from channel portion 111, enabling the outer edge of impeller 12 to more effectively contact the airflow entering through the intake channel during impeller 12 rotation, thereby improving the airflow acceleration and energy conversion efficiency of impeller 12. The outer edge of impeller 12 is constructed in an arc shape that is concave toward the center. This arc shape helps reduce airflow separation and vortex generation at the edge of impeller 12, and also improves the stability and efficiency of impeller 12. The flexible portion 13 surrounds the side of channel portion 111 facing impeller 12, facilitating the impeller 12's cutting of the flexible portion 13. The flexible portion 13 has a curved surface that convexes toward the outer edge of impeller 12, allowing it to more closely conform to the outer edge of impeller 12 during rotation, reducing the gap between impeller 12 and the flexible portion 13. Furthermore, the convex curved surface guides the flow of fluid, reducing impact and wear on impeller 12 and flexible portion 13.

[0038] According to some embodiments of the present invention, the flexible portion 13 and the channel portion 111 are integrally formed.

[0039] Specifically, the flexible portion 13 and the channel portion 111 can be integrally formed through a molding process such as injection molding or die casting to ensure a tight connection between the flexible portion 13 and the channel portion 111. The flexible portion 13 and the channel portion 111 are integrally formed, which not only simplifies the manufacturing process, reduces assembly steps and potential assembly errors, but also helps to improve the structural strength and stability of the entire cover assembly 1, making the connection between the flexible portion 13 and the channel portion 111 more secure and reliable.

[0040] According to some embodiments of the present invention, the flexible portion 13 and the channel portion 111 are detachably connected.

[0041] Specifically, the flexible part 13 and the channel part 111 can be detachably connected by means of bolts, snaps or bonding, thereby improving the convenience of maintenance of the flexible part 13. When the flexible part 13 needs to be replaced due to wear or damage, the flexible part 13 can be removed from the channel part 111 and a new flexible part 13 can be installed without replacing the entire cover assembly 1, thereby reducing maintenance costs. By using flexible parts 13 of different materials, different working conditions or performance requirements can be adapted, thereby increasing the flexibility and applicability of the cover assembly 1.

[0042] According to some embodiments of the present invention, a coating layer is formed on the inner surface of the channel portion 111 , the coating layer is configured as the flexible portion 13 , and the material of the coating layer is tetrafluoroethylene.

[0043] Specifically, the flexible portion 13 is constructed by forming a coating on the inner surface of the channel portion 111. The flexible portion 13 is not realized by a separate structural part, but a specific material is directly attached to the inner surface of the channel portion 111 through a coating process, which simplifies the assembly steps of the flexible portion 13. At the same time, tetrafluoroethylene is used as the coating material. Since tetrafluoroethylene has a low hardness, it is convenient for the impeller 12 to cut the coating. At the same time, it can also improve the corrosion resistance of the cover assembly 1 and reduce costs.

[0044] According to some embodiments of the present invention, the thickness of the coating layer is d and satisfies 0<d≤5mm.

[0045] Specifically, the coating thickness d is limited to within 0-5 mm. The coating is cut by impeller 12 to form an adaptive gap between impeller 12 and cover body 11, reducing friction between impeller 12 and cover body 11 and ensuring the efficiency of impeller 12. If the coating is too thick, the gap between impeller 12 and cover body 11 will increase, reducing the efficiency of impeller 12. If the coating is too thin, friction will occur between cover body 11 and impeller 12, affecting the efficiency and safety of impeller 12. By limiting the coating thickness d to between 0-5 mm, the coating can be ensured to achieve optimal performance in cover assembly 1, improving the reliability and service life of the equipment.

[0046] According to some embodiments of the present invention, the flexible portion 13 is constructed as a plastic part.

[0047] Specifically, the flexible portion 13 is constructed of plastic parts such as nylon. The plastic material has a low hardness, which facilitates the cutting of the impeller 12. At the same time, the plastic parts have strong corrosion resistance, which is beneficial to extending the service life of the flexible portion 13. The plastic material has a low cost and good processing performance. It can be easily made into various shapes of structural parts through injection molding, pressing and other processes to meet the design requirements of the cover assembly 1.

[0048] The following briefly describes the compressor according to the present invention.

[0049] The compressor according to the present invention has the cover assembly 1 described in any one of the above embodiments. Since the compressor according to the present invention has the cover assembly 1 described in any one of the above embodiments, the impeller 12 in the compressor has higher working efficiency and the compressor is more efficient.

[0050] The air conditioner according to the present invention is briefly described below.

[0051] The air conditioner according to the present invention includes the compressor described in any one of the above embodiments. Since the air conditioner according to the present invention includes the compressor described in any one of the above embodiments, the working efficiency of the air conditioner is higher.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0053] In the description of the present invention, "first feature" and "second feature" may include one or more such features.

[0054] In the description of the present invention, “plurality” means two or more.

[0055] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact via another feature therebetween.

[0056] In the description of the present invention, a first feature “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0057] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cover assembly, characterized in that: include: A cover body, wherein an impeller cavity is formed in the cover body; an impeller rotatably disposed in the impeller chamber; in The cover body is formed with a flexible portion on the inner wall of the impeller cavity for cutting the edge of the impeller, and the hardness of the flexible portion is less than the hardness of the outer edge of the impeller.

2. The cover assembly according to claim 1, wherein: The cover body comprises: a channel portion, wherein an air inlet channel is formed in the channel portion and is arranged opposite to the impeller, and an inner wall of the channel portion forms the flexible portion; The volute is arranged around the outer periphery of the channel portion, and an impeller chamber connected to the air inlet channel is formed inside the volute, and the impeller is arranged in the impeller chamber.

3. The cover assembly according to claim 2, wherein: The outer edge of the impeller is configured as an arc extending away from the channel portion and concave toward the center. The flexible portion is arranged around a side of the channel portion facing the impeller and forms an arc surface convex toward the outer edge of the impeller.

4. The cover assembly according to claim 3, wherein: The flexible portion and the channel portion are integrally formed.

5. The cover assembly according to claim 3, wherein: The flexible portion is detachably connected to the channel portion.

6. The cover assembly according to claim 2, wherein: A coating layer is formed on the inner surface of the channel portion, the coating layer serves as the flexible portion, and the material of the coating layer is tetrafluoroethylene.

7. The cover assembly according to claim 6, wherein: The thickness of the coating layer is d and satisfies 0<d≤5mm.

8. The cover assembly according to claim 2, wherein: The flexible portion is configured as a plastic part.

9. A compressor, characterized in that: The invention comprises a cover assembly as described in any one of claims 1 to 8.

10. An air conditioner, characterized in that: Including the compressor according to claim 9.

Images