Upper flange, compressor, air conditioner

Abstract

This invention provides an upper flange, a compressor, and an air conditioner. The upper flange includes a journal, an annular receiving groove and an oil inlet channel formed within the annular wall of the journal. A damping ring is housed within the annular receiving groove. An oil supply channel is formed on the inner peripheral wall of the journal, and the oil supply channel communicates with the annular receiving groove through the oil inlet channel. According to this invention, when lubricating oil in the oil supply channel flows into the annular receiving groove through the oil inlet channel, an oil film is formed between the damping ring and the groove wall of the annular receiving groove. The oil film on the damping ring forms a good damping structure, which can reduce the vibration transmission of the shaft system to the upper flange, thereby significantly improving the noise problem caused by shaft vibration of the compressor.

Description

Technical Field

[0001] This invention belongs to the field of compressor technology, specifically relating to an upper flange, a compressor, and an air conditioner. Background Technology

[0002] A fully enclosed rotary compressor mainly consists of a pump body assembly, a rotor assembly, a drive motor, and a housing. The motor drives an eccentric wheel shaft, which in turn rotates the rolling rotor within a cylindrical cylinder, causing a change in working volume to compress the refrigerant gas. As its working principle reveals, the vibration excitation source of a fully enclosed rotary compressor is primarily the rotor shaft vibration. This vibration is transmitted to the housing through the upper flange, causing housing vibration and radiating noise outwards. Furthermore, when used in a standalone air conditioning system, shaft vibration (the upper deflection mode of the shaft) is further transmitted to the panel or intake / exhaust pipes, causing resonance in the panel or pipes and further amplifying the vibration. Currently, there are limited solutions to the noise problem caused by shaft vibration. For example: firstly, changing the shaft mass to adjust the shaft mode and move it away from the panel or pipe modes, but this method is ineffective due to the dense pipe modes; secondly, adding a vibration damping unit between the pump body assembly and the housing, but this method is difficult to manufacture and extremely challenging for mass production. Summary of the Invention

[0003] Therefore, the present invention provides an upper flange that can solve the noise problem caused by shaft vibration of the compressor.

[0004] To solve the above problems, the present invention provides an upper flange, including a journal, wherein an annular receiving groove and an oil inlet channel are formed in the annular wall of the journal, the annular receiving groove contains a vibration damping ring, and an oil supply channel is formed on the inner peripheral wall of the journal, the oil supply channel being connected to the annular receiving groove through the oil inlet channel.

[0005] In some embodiments, an oil outlet channel is formed on the annular wall of the journal, the oil outlet channel is located above the oil inlet channel, and the annular receiving groove is connected to the oil supply channel through the oil outlet channel.

[0006] In some embodiments, a plurality of axial grooves are formed on the inner peripheral wall of the damping ring, and each of the axial grooves is distributed at intervals along the circumference of the damping ring.

[0007] In some embodiments, a bottom circumferential groove is formed at one bottom end of the vibration damping ring, and each of the axial grooves communicates with the bottom circumferential groove.

[0008] In some embodiments, a top circumferential groove is formed at one top end of the damping ring, and each of the axial grooves communicates with the top circumferential groove; and / or, a middle circumferential groove is also formed on the inner circumferential wall of the damping ring, and each of the axial grooves communicates with the middle circumferential groove.

[0009] In some embodiments, the upper flange further includes a flange body, the journal is located on the flange body, and a damping assembly is assembled on the flange body, the damping assembly being installed radially along the flange body.

[0010] In some embodiments, the damping assembly includes a guide, an elastic element, a mass block, and a connecting plate. The guide is fixed to the flange body and extends radially along the flange body. The elastic element, the mass block, and the connecting plate are all assembled on the guide. One end of the elastic element is connected to the mass block, and the other end of the elastic element is connected to the connecting plate. The mass block is slidable along the guide.

[0011] In some embodiments, the flange body has a mounting groove and a threaded hole, the threaded hole communicating with the mounting groove, the guide is a bolt, the bolt is threaded into the threaded hole, and a portion of the bolt is located within the mounting groove, and the mass block is located within the mounting groove.

[0012] In some embodiments, two flexible elements are provided in the mounting groove, and the mass block is located between the two flexible elements along the radial direction of the flange body.

[0013] In some embodiments, there are multiple damping components, and each damping component is evenly spaced along the circumference of the flange body.

[0014] The present invention also provides a compressor, including the aforementioned upper flange.

[0015] The present invention also provides an air conditioner, including the aforementioned compressor.

[0016] The present invention provides an upper flange, a compressor, and an air conditioner, which have the following beneficial effects:

[0017] When the lubricating oil in the oil supply channel flows into the annular receiving groove through the oil inlet channel, an oil film will be formed between the damping ring and the groove wall of the annular receiving groove. The oil film on the damping ring forms a good damping structure, which can reduce the vibration transmission of the shaft to the upward flange, thereby significantly improving the noise problem caused by the shaft vibration of the compressor. Attached Figure Description

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the upper flange from a first-view perspective, representing an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the upper flange from a second perspective, representing an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the vibration damping ring body inside the upper flange in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the shock-absorbing assembly on the upper flange in an embodiment of the present invention.

[0023] The reference numerals in the attached figures are as follows:

[0024] 1. Journal; 2. Annular receiving groove; 3. Oil inlet channel; 4. Vibration damping ring; 5. Oil supply channel; 6. Oil outlet channel; 7. Axial groove; 8. Bottom circumferential groove; 9. Top circumferential groove; 10. Middle circumferential groove; 11. Flange body; 12. Vibration damping assembly; 121. Guide component; 122. Elastic component; 123. Mass block; 124. Connecting plate; 13. Mounting groove; 14. Flexible component. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. 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.

[0026] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0027] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0029] See also Figures 1 to 4 As shown, according to an embodiment of the present invention, an upper flange is provided, including a journal 1. An annular receiving groove 2 and an oil inlet channel 3 are formed in the annular wall of the journal 1. The annular receiving groove 2 contains a vibration damping ring 4. An oil supply channel 5 is formed on the inner peripheral wall of the journal 1. The oil supply channel 5 is connected to the annular receiving groove 2 through the oil inlet channel 3.

[0030] In this technical solution, when the lubricating oil in the oil supply channel 5 flows into the annular receiving groove 2 through the oil inlet channel 3, an oil film is formed between the damping ring 4 and the groove wall of the annular receiving groove 2. The oil film on the damping ring 4 forms a good damping structure, which can reduce the vibration transmission of the shaft system to the upward flange, thereby significantly improving the noise problem caused by the shaft vibration of the compressor. The damping ring 4 can be made of rubber or be an annular spring wave plate.

[0031] See also Figure 1 and Figure 2 As shown, an oil outlet channel 6 is formed on the annular wall of the journal 1, located above the oil inlet channel 3. The annular receiving groove 2 is connected to the oil supply channel 5 through the oil outlet channel 6. During the rotation of the shaft system, it rubs against the journal 1, generating a large amount of heat between the shaft system and the journal 1. This results in a high temperature for the journal 1 during operation, which can accelerate the aging of the damping ring 4 if it is exposed to a high-temperature environment for a long time. By setting the oil outlet channel 6, the lubricating oil flows from the oil inlet channel 3 into the annular receiving groove 2 and then flows out from the oil outlet channel 6, thus achieving the flow of lubricating oil between the oil supply channel 5 and the annular receiving groove 2. This effectively cools the damping ring 4 and protects it. Furthermore, the flow of lubricating oil between the oil supply channel 5 and the annular receiving groove 2 also better dissipates vibration energy. It should be noted that, in order to facilitate the installation of the damping ring 4, the annular receiving groove 2 can be extended to the top end face of the journal 1, so that the damping ring 4 can be easily inserted into the annular receiving groove 2 from the top of the journal 1. When the annular receiving groove 2 extends to the top end face of the journal 1, the oil outlet channel 6 can be formed on the top end face of the journal 1.

[0032] See Figure 3 As shown, multiple axial grooves 7 are formed on the inner peripheral wall of the damping ring 4, and each axial groove 7 is distributed at intervals along the circumference of the damping ring 4.

[0033] In this embodiment, the arrangement of each axial groove 7 facilitates the flow of lubricating oil, increases the contact area between the lubricating oil and the damping ring 4, and thus improves the cooling effect of the lubricating oil on the damping ring 4. Simultaneously, when each axial groove 7 is filled with lubricating oil, the oil film thickness is increased, resulting in better damping and vibration reduction.

[0034] See Figure 3 As shown, a bottom circumferential groove 8 is formed at one end of the bottom of the damping ring 4, and each axial groove 7 is connected to the bottom circumferential groove 8.

[0035] In this technical solution, the bottom circumferential groove 8 allows the lubricating oil entering the annular receiving groove 2 to quickly fill the circumference of the damping ring 4, thus facilitating the uniform flow of lubricating oil into each axial groove 7. It also increases the contact area between the lubricating oil and the damping ring 4, further enhancing the cooling effect of the lubricating oil on the damping ring 4. It is understandable that the bottom circumferential groove 8 also increases the amount of lubricating oil that can be accommodated in the annular receiving groove 2, further improving the damping and vibration reduction effect.

[0036] See Figure 3 As shown, a top circumferential groove 9 is formed at one end of the top of the vibration damping ring 4, and each axial groove 7 is connected to the top circumferential groove 9.

[0037] In this embodiment, by setting the top circumferential groove 9, the lubricating oil in each axial groove 7 can be collected and flow out together from the oil outlet channel 6, which is conducive to the circulation of lubricating oil. At the same time, it also increases the contact area between the lubricating oil and the damping ring 4, further improving the cooling effect of the lubricating oil on the damping ring 4. It can be understood that the setting of the top circumferential groove 9 also increases the amount of lubricating oil that can be contained in the annular receiving groove 2, further improving the damping and vibration reduction effect. It should be noted that a middle circumferential groove 10 can also be formed on the inner circumferential wall of the damping ring 4. The middle circumferential groove 10 is located between the bottom circumferential groove 8 and the top circumferential groove 9. Each axial groove 7 is connected to the middle circumferential groove 10. The function of setting the middle circumferential groove 10 is similar to that of the bottom circumferential groove 8 or the top circumferential groove 9, and will not be described in detail here.

[0038] See also Figure 1 and Figure 2 As shown, the upper flange also includes a flange body 11, a journal 1 on the flange body 11, and a damping assembly 12 assembled on the flange body 11. The damping assembly 12 is installed radially along the flange body 11.

[0039] In this technical solution, by assembling the damping component 12 on the flange body 11, the residual energy transmitted from the shaft vibration can be absorbed, preventing the vibration from being transmitted to the compressor casing, thereby better solving the noise problem caused by shaft vibration. It is understood that shaft vibration is mainly transmitted radially along the upper flange, so installing the damping component 12 radially along the flange body 11 can better absorb shaft vibration.

[0040] See also Figure 1 and Figure 3 As shown, the damping assembly 12 includes a guide 121, an elastic element 122, a mass block 123, and a connecting plate 124. The guide 121 is fixed on the flange body 11 and extends radially along the flange body 11. The elastic element 122, the mass block 123, and the connecting plate 124 are all assembled on the guide 121. One end of the elastic element 122 is connected to the mass block 123, and the other end of the elastic element 122 is connected to the connecting plate 124. The mass block 123 can slide along the guide 121.

[0041] In this embodiment, when the shaft vibration is transmitted to the flange body 11, the vibration forces the mass block 123 to slide along the guide member 121. The mass block 123 is also connected to the elastic member 122. Therefore, with the cooperation of the elastic member 122, the mass block 123 will move back and forth along the guide member 121. The mass block 123 consumes vibration energy during the back and forth movement, thereby absorbing the shaft vibration and preventing the vibration from being transmitted to the compressor housing.

[0042] See Figure 1As shown, the flange body 11 has a mounting groove 13 and a threaded hole (not shown in the figure). The threaded hole communicates with the mounting groove 13. The guide 121 is a bolt, which is threaded into the threaded hole. A portion of the bolt is located in the mounting groove 13. The mass block 123 is located in the mounting groove 13.

[0043] In this technical solution, when the guide element 121 is a bolt, the threaded hole formed on the flange body 11 facilitates the installation of the guide element 121, and the mounting groove 13 formed on the flange body 11 facilitates the installation of the mass block 123. The elastic element 122 and the connecting plate 124 can both be located within the mounting groove 13; alternatively, the flange body 11 can also have a passage hole that communicates with the mounting groove 13. The passage hole and the threaded hole are aligned with the mounting groove 13, and the bolt passes through both the passage hole and the threaded hole, then is threaded into the threaded hole. The connecting plate 124 is located on the side of the passage hole away from the mounting groove 13, and the elastic element 122 passes through the passage hole and connects to the mass block 123. Specifically, the elastic element 122 is preferably a spring, and the spring, mass block 123, and connecting plate 124 are all fitted onto the bolt.

[0044] See Figure 1 As shown, two flexible members 14 are provided within the mounting groove 13, and a mass block 123 is located between the two flexible members 14 along the radial direction of the flange body 11. If the mass block 123 is subjected to a large forced movement, the two flexible members 14 can prevent the mass block 123 from colliding with the wall of the mounting groove 13, thus preventing new vibrations and noise. Simultaneously, the collision between the mass block 123 and the two flexible members 14 can also dissipate vibration energy. Specifically, the two flexible members 14 can be fitted onto bolts and adhered to the wall of the mounting groove 13; the flexible members 14 can be gaskets made of rubber.

[0045] See also Figure 1 and Figure 3 As shown, there are multiple damping components 12, which are evenly distributed along the circumference of the flange body 11, thus achieving all-round absorption of the residual energy transmitted by shaft vibration. Preferably, there are four damping components 12, which are arranged at 90-degree intervals between each other along the circumference of the flange body 11.

[0046] The present invention also provides a compressor, including the aforementioned upper flange.

[0047] The present invention also provides an air conditioner, including the aforementioned compressor.

[0048] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. An upper flange, characterized in that, The journal (1) includes an annular receiving groove (2) and an oil inlet channel (3) formed in the annular wall of the journal (1). The annular receiving groove (2) extends to the top end face of the journal (1). The annular receiving groove (2) contains a damping ring (4). An oil supply channel (5) is formed on the inner peripheral wall of the journal (1). The oil supply channel (5) is connected to the annular receiving groove (2) through the oil inlet channel (3). An oil outlet channel (6) is formed on the annular wall of the journal (1). The oil outlet channel (6) is located above the oil inlet channel (3). The annular receiving groove (2) is connected to the oil supply channel (5) through the oil outlet channel (6). It also includes a flange body (11), the journal (1) is located on the flange body (11), and a damping assembly (12) is assembled on the flange body (11), the damping assembly (12) being installed radially along the flange body (11); The shock absorption assembly (12) includes a guide (121), an elastic element (122), a mass block (123), and a connecting plate (124). The guide (121) is fixed on the flange body (11) and extends radially along the flange body (11). The elastic element (122), the mass block (123), and the connecting plate (124) are all assembled on the guide (121). One end of the elastic element (122) is connected to the mass block (123), and the other end of the elastic element (122) is connected to the connecting plate (124). The mass block (123) can slide along the guide (121). The flange body (11) has an installation groove (13) and a threaded hole. The threaded hole communicates with the installation groove (13). The guide (121) is a bolt. The bolt is threaded into the threaded hole, and a portion of the bolt is located in the installation groove (13). The mass block (123) is located in the installation groove (13). Two flexible elements (14) are provided in the mounting groove (13), and the mass block (123) is located between the two flexible elements (14) along the radial direction of the flange body (11).

2. The upper flange according to claim 1, characterized in that, Multiple axial grooves (7) are formed on the inner peripheral wall of the damping ring (4), and each of the axial grooves (7) is distributed at intervals along the circumference of the damping ring (4).

3. The upper flange according to claim 2, characterized in that, The bottom end of the damping ring (4) is formed with a bottom circumferential groove (8), and each of the axial grooves (7) is connected to the bottom circumferential groove (8).

4. The upper flange according to claim 2, characterized in that, The top end of the damping ring (4) is formed with a top circumferential groove (9), and each of the axial grooves (7) is connected to the top circumferential groove (9); and / or, the inner circumferential wall of the damping ring (4) is also formed with a middle circumferential groove (10), and each of the axial grooves (7) is connected to the middle circumferential groove (10).

5. The upper flange according to claim 1, characterized in that, The number of the shock-absorbing components (12) is multiple, and each shock-absorbing component (12) is evenly distributed along the circumference of the flange body (11).

6. A compressor, characterized in that, Includes the upper flange as described in any one of claims 1 to 5.

7. An air conditioner, characterized in that it includes the compressor as described in claim 6.

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