Connecting assembly and compressor

Abstract

The utility model provides a connecting assembly and a compressor. The connecting assembly is used for connecting a compressor shell and an oil level sensor. The connecting assembly comprises a liquid viewing mirror adapter, a liquid viewing mirror and a liquid viewing mirror, wherein the liquid viewing mirror adapter is fixed on the compressor shell; the first end of the connecting piece is detachably connected with the visual liquid mirror adapter, the second end of the connecting piece is detachably connected with the locking piece, and the connecting piece and the locking piece can abut against the two axial sides of an annular boss arranged on the periphery of the oil level sensor in a surrounding mode respectively; the oil level sensor can penetrate through the liquid sight glass connector, the connecting piece and the locking piece. Therefore, disassembly and assembly are easy, time and labor are saved, and replacement is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the compressor technical field, specifically relates to a connecting assembly and compressor. BACKGROUND

[0002] In order to observe the oil condition inside the compressor, generally, a sight glass assembly is arranged on the shell of the compressor, in the use process, the user can visually observe the oil inside the compressor through the wide-angle sight glass of the sight glass assembly, and then draw the conclusion whether the oil is appropriate or whether the oil needs to be filled. However, this kind of way of using the sight glass assembly needs the user to observe frequently, which is time-consuming and laborious, and the operation is complicated, and when the oil in the compressor is less, it cannot be reacted in time.

[0003] Although there is a way of using the oil level sensor to detect the oil in the compressor in the prior art, the oil level sensor is more complicated to disassemble and assemble with the shell of the compressor, and the oil level sensor cannot be replaced in time when it fails. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a connecting assembly and compressor, which is used for connecting the compressor shell and the oil level sensor, and is simple to disassemble and assemble, time-saving and labor-saving, and convenient to replace.

[0005] In order to achieve the above purpose, the present application provides the following technical scheme:

[0006] A connecting assembly for connecting a compressor shell and an oil level sensor, comprising:

[0007] A sight glass adapter fixed on the compressor shell;

[0008] A connecting piece and a locking piece, the first end of the connecting piece is detachably connected with the sight glass adapter, the second end of the connecting piece is detachably connected with the locking piece, and the connecting piece and the locking piece can abut on the axial two sides of the annular boss arranged around the outer periphery of the oil level sensor, respectively.

[0009] Wherein, the sight glass adapter, the connecting piece and the locking piece are provided for the oil level sensor to pass through.

[0010] Optionally, the sight glass adapter has a first internal thread, the first end of the connecting piece is provided with a first external thread, and the first internal thread is matched with the first external thread to threadedly connect the sight glass adapter with the connecting piece.

[0011] Optionally, a first sealing structure is arranged between the sight glass adapter and the connecting piece.

[0012] Optionally, an outer periphery of the connecting piece is provided with an annular step towards the sight glass adapter, and the first sealing structure comprises a first sealing ring abutting between the sight glass adapter and the annular step.

[0013] Optionally, a second end of the connecting piece is provided with a second external thread, the locking piece is provided with a second internal thread, and the second external thread is matched with the second internal thread to threadedly connect the connecting piece with the locking piece.

[0014] Optionally, an inner periphery surface of the locking piece is provided with an annular inner edge, and when the connecting piece is connected with the locking piece, the second end of the connecting piece clamps the annular boss of the oil level sensor with the annular inner edge.

[0015] Optionally, a second sealing structure is arranged between the connecting piece and the annular boss of the oil level sensor, and / or between the annular boss and the annular inner edge.

[0016] A compressor comprising a compressor housing, an oil level sensor and the connecting assembly according to any one of the above.

[0017] Optionally, the oil level sensor has a mounting joint, an outer periphery surface of the mounting joint is provided with the annular boss, an outer diameter of the annular boss is greater than an inner diameter of the connecting piece and the annular inner edge, and is less than an inner diameter of the locking piece.

[0018] Optionally, the oil level sensor comprises a tubular element and a floating element, the tubular element is fixed to the compressor housing and is arranged at least partially inside the compressor housing, the floating element is arranged inside the compressor housing and surrounds the tubular element, and the mounting joint is provided with a calibration plane on an outer periphery of the locking piece, the calibration plane is perpendicular or parallel to a movement path of the floating element of the oil level sensor.

[0019] The connecting assembly and the compressor provided in the application utilize the original sight glass adapter in the original sight glass assembly to realize the connection of the oil level sensor, which is beneficial to saving cost, updating and iterating the original compressor, and adjusting the oil detection mode according to actual conditions. Moreover, the first end of the connecting piece is detachably connected with the sight glass adapter, the second end of the connecting piece is detachably connected with the locking piece, and then the oil level sensor is mounted and connected on the sight glass adapter through the connecting piece and the locking piece. Since the sight glass adapter is fixed on the compressor housing, the installation of the oil level sensor is realized, which is simple to disassemble and assemble, saves time and effort, and is convenient to replace. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only are a part of the present application, and for those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 An installation schematic view of a connecting assembly according to some embodiments of the present application;

[0022] Figure 2 An installation sectional view of a connecting assembly according to some embodiments of the present application;

[0023] Figure 3 An exploded view of a connecting assembly according to some embodiments of the present application;

[0024] Figure 4 A sectional view of a connecting piece according to some embodiments of the present application;

[0025] Figure 5 A sectional view of a locking piece according to some embodiments of the present application;

[0026] Figure 6 A sectional view of an oil level sensor according to some embodiments of the present application.

[0027] In the drawings: 1, sight glass adapter; 2, first sealing ring; 3, connecting piece; 4, second sealing ring; 5, oil level sensor; 6, locking piece; 31, first outer diameter part; 32, second outer diameter part; 33, third outer diameter part; 34, annular step; 51, annular boss; 52, calibration plane; 53, floating element; 54, first tubular part; 55, second tubular part; 61, first inner diameter part; 62, second inner diameter part. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort fall within the scope of the present application.

[0029] As Figures 1-6As shown in the figure, this application provides a connecting assembly for connecting a compressor housing and an oil level sensor 5, including a sight glass adapter 1, a connector 3, and a locking member 6. The sight glass adapter 1, connector 3, and locking member 6 are all configured as cylindrical structures with hollow through holes, allowing the oil level sensor 5 to pass through the hollow through holes and penetrate the sight glass adapter 1, connector 3, and locking member 6.

[0030] The sight glass adapter 1 is fixed to the compressor housing. Specifically, the compressor housing has a channel opening into which the sight glass adapter 1 extends and is welded. Furthermore, the inner circumferential surface of the sight glass adapter 1 has a first internal thread, and the first end of the connector 3 has a first external thread. The first internal thread and the first external thread are matched. During connection, the connector 3 and the sight glass adapter 1 are threaded together via the first internal thread and the first external thread, thus achieving a detachable connection between the connector 3 and the sight glass adapter 1. This simplifies assembly and disassembly, saving time and effort.

[0031] It should be noted that the sight glass adapter 1 is part of the sight glass assembly. Existing sight glass assemblies include a sight glass lens and a sight glass adapter. The sight glass lens is threaded into the interior of the sight glass adapter to seal the hollow through-hole of the adapter, allowing the user to visually inspect the oil inside the compressor through the sight glass lens. In this solution, the sight glass adapter 1 within the existing sight glass assembly is used to connect to the liquid level sensor, which helps save costs, allows for the upgrading of existing compressors, and facilitates the adjustment of the oil detection method according to actual conditions.

[0032] like Figure 4 As shown, the connector 3 includes a first outer diameter portion 31, a second outer diameter portion 32, and a third outer diameter portion 33 arranged sequentially along the axial direction. The first end of the connector 3 is close to the first outer diameter portion 31, and the second end of the connector 3 is close to the third outer diameter portion 33. The outer periphery of the first outer diameter portion 31 is provided with a first external thread for mating and connecting with the first internal thread of the sight glass adapter 1. The outer diameter of the second outer diameter portion 32 is larger than the outer diameters of the first outer diameter portion 31 and the third outer diameter portion 33, so that the second outer diameter portion 32 protrudes radially from the first outer diameter portion 31 and the third outer diameter portion 33. That is, the second outer diameter portion 32 is an annular protrusion surrounding the outer circumference of the connector 3. The annular protrusion forms an annular step 34 on the side facing the first outer diameter portion 31. When the sight glass adapter 1 is connected to the connector 3, the end face of the sight glass adapter 1 abuts against the annular step 34. Specifically, the end face of the sight glass adapter 1 is parallel to the surface where the annular step 34 is located, which helps to improve the sealing of the connection between the sight glass adapter 1 and the connector 3.

[0033] A first sealing ring 2 is arranged between the sight glass adapter 1 and the annular step 34 to form a first sealing structure, further improving the sealing of the connection between the sight glass adapter 1 and the connecting piece 3. In addition, the first sealing structure can also be a sealing tape arranged between the first outer thread and the first inner thread.

[0034] As shown in Figure 1 , 3 , the second outer diameter portion 32 is circumferentially provided with a plurality of grooves extending in the axial direction of the second outer diameter portion 32, so that the outer periphery of the second outer diameter portion 32 forms an anti-skid pattern, facilitating the user to screw the connecting piece 3 to realize the disassembly of the sight glass adapter 1 and the connecting piece 3.

[0035] As shown in Figure 5 , the locking piece 6 includes a first inner diameter portion 61 and a second inner diameter portion 62 arranged in the axial direction, the first inner diameter portion 61 is provided with a second outer thread, and the third outer diameter portion 33 in the connecting piece 3 is provided with a second outer thread, the second outer thread and the second inner thread are matched, so that the locking piece 6 and the connecting piece 3 are threadedly connected through the second outer thread and the second inner thread, thereby realizing the detachable connection of the connecting piece 3 and the locking piece 6, which is simple to disassemble and saves time and effort.

[0036] The inner diameter of the first inner diameter portion 61 is greater than the inner diameter of the second inner diameter portion 62, so that the second inner diameter portion 62 is radially retracted relative to the first inner diameter portion 61, that is, the second inner diameter portion 62 is an annular inner edge arranged around the inner periphery of the locking piece 6. During the threaded connection of the locking piece 6 and the connecting piece 3, the end face of the connecting piece 3 (i.e. the end face of the third outer diameter portion 33 away from the second outer diameter portion 32) and the annular inner edge gradually approach, and then can be respectively abutted on the axial two sides of the annular boss 51 of the oil level sensor 5, that is, the connecting piece 3 and the locking piece 6 clamp the annular boss 51. In this way, through the connection of the locking piece 6 and the connecting piece 3, the installation and fixation of the oil level sensor can be realized, which is simple to operate, saves time and effort, and is conducive to the rapid disassembly and assembly of the oil level sensor 5.

[0037] Among them, the two sides of the annular boss 51 in the axial direction are respectively parallel to the end face of the third outer diameter portion 33 and the end face of the second inner diameter portion 62, such as the above four are parallel, so that the annular boss 51 is in close contact with the end face of the third outer diameter portion 33, and the annular boss 51 is in close contact with the end face of the second inner diameter portion 62, thereby improving the sealing performance when the connecting piece 3 and the locking piece 6 are connected.

[0038] A second sealing ring 4 is arranged between the end surface of the third outer diameter portion 33 of the connecting piece 3 and the annular boss 51 to form a second sealing structure, thereby improving the sealing between the connecting piece 3 and the oil level sensor 5 and further improving the sealing when the connecting piece 3 is connected to the locking piece 6. In addition, the second sealing structure can further include a third sealing ring arranged between the annular boss 51 and the second inner diameter portion 62, thereby improving the sealing between the locking piece 6 and the oil level sensor 5 and further improving the sealing when the connecting piece 3 is connected to the locking piece 6.

[0039] As shown in Figure 1 , 3 , the outer periphery of the locking piece 6 is provided with an external hexagonal structure to facilitate the user to rotate the locking piece 6 to quickly disassemble and assemble the locking piece 6 and the connecting piece 3.

[0040] It should be noted that the annular boss 51 is a part of the oil level sensor and is used to fix the oil level sensor 5. The annular boss 51 can be designed based on the original design of the oil level sensor 5 and can be additionally provided on the original oil level sensor 5, which is not limited herein.

[0041] The embodiment of the present application provides a compressor, which comprises a compressor shell, an oil level sensor 5, and a connecting assembly. The connecting assembly is the connecting assembly in the above embodiment, and the oil level sensor 5 can be mounted on the compressor shell through the connecting assembly.

[0042] The compressor further comprises an oil groove arranged at the lower part of the compressor shell, and the oil level sensor 5 extends into the compressor shell and is used to detect the oil level in the oil groove.

[0043] As shown in Figure 6 , the oil level sensor 5 device comprises a tubular element and a floating element 53. The tubular element is fixed to the compressor shell and is at least partially arranged inside the compressor shell. The floating element 53 is arranged inside the compressor shell, surrounds the tubular element, and can float on the oil contained in the oil groove. The tubular element comprises a first tubular portion 54, a second tubular portion 55, and an arc-shaped connecting portion. The first tubular portion 54 has a first longitudinal axis, the second tubular portion 55 has a second longitudinal axis, and the first longitudinal axis and the second longitudinal axis are perpendicular. The arc-shaped connecting portion connects the first tubular portion 54 to the second tubular portion 55. In use, the first tubular portion 54 is arranged vertically and is at least partially immersed in the oil groove, the second tubular portion 55 is arranged horizontally and is mounted and fixed on the compressor shell through the connecting assembly, and the floating element 53 is arranged around the outer periphery of the first tubular portion 54 and can slide relative to the first tubular portion 54 in the vertical direction.

[0044] A mounting connector is provided at a position away from the first tubular portion 54 in the second tubular portion 55 of the oil level sensor 5. The outer diameter of the mounting connector is larger than the outer diameter of the second tubular portion 55, so that the mounting connector protrudes from the second tubular portion 55, which helps to improve the stability of the installation. An annular boss 51 as described in the above embodiment is provided at the middle of the outer peripheral surface of the mounting connector. The outer diameter of the annular boss 51 is larger than the outer diameter of the mounting connector, so that the annular boss 51 protrudes relative to the outer peripheral surface of the mounting connector and divides the outer peripheral surface of the mounting connector into a first outer peripheral surface and a second outer peripheral surface located on both axial sides of the annular boss 51. In this configuration, the first outer peripheral surface is closer to the first tubular portion 54 than the second outer peripheral surface. The outer diameter of the first outer peripheral surface is smaller than the inner diameter of the connector 3, allowing the connector 3 to be fitted onto the outer periphery of the first outer peripheral surface. The outer diameter of the second outer peripheral surface is smaller than the inner diameter of the second inner diameter portion 62 of the locking member 6, allowing the second inner diameter portion 62 to be fitted onto the outer periphery of the second outer peripheral surface. The outer diameter of the annular boss 51 is smaller than the inner diameter of the first inner diameter portion 61 of the locking member 6, allowing the first inner diameter portion 61 to be fitted onto the outer periphery of the annular boss 51. This arrangement facilitates the connection of the connector 3 and the locking member 6 abutting against the axial sides of the annular boss 51, respectively.

[0045] like Figures 1-3 As shown, a calibration plane 52 is provided on the second outer peripheral surface of the mounting connector. This calibration plane 52 is perpendicular or parallel to the sliding path of the floating element 53, that is, the calibration plane 52 is perpendicular or parallel to the extension direction (first longitudinal axis) of the first tubular portion 54. In this way, when installing the oil level sensor 5, the angle of the first tubular portion 54 (the floating path of the floating element 53) relative to the compressor housing can be obtained based on the angle of the calibration plane 52 relative to the compressor housing. This helps improve the installation accuracy and precision of the oil level sensor 5, and also improves the detection accuracy. For example, during installation, keeping the calibration plane 52 parallel to the plane where the base of the compressor housing is located ensures that the first tubular portion 54 (the floating path of the floating element 53) is perpendicular to the screen where the base is located.

[0046] In the specific design, there are two calibration planes 52, both of which are parallel to the sliding path of the floating element 53.

[0047] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0048] The block diagrams of the devices, apparatuses, devices, systems involved in the present application are only illustrative examples and are not intended to require or imply that the connection, arrangement, configuration must be as shown in the block diagram. As those skilled in the art will recognize, these devices, apparatuses, devices, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have", and the like are open-ended words, mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0049] It should be understood that the limiting words "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used for more clearly illustrating the technical solutions, and cannot be used to limit the protection scope of the present application.

[0050] The above description has been given for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A connection assembly for connecting a compressor housing and an oil level sensor, characterized by, include: The sight glass adapter is fixed to the compressor housing; The connector and the locking member are provided. The first end of the connector is detachably connected to the sight glass adapter, and the second end of the connector is detachably connected to the locking member. They can respectively abut against the axial sides of the annular boss surrounding the oil level sensor. The sight glass adapter, the connector, and the locking member allow the oil level sensor to pass through them.

2. The connection assembly of claim 1, wherein, The sight glass adapter has a first internal thread, and the first end of the connector has a first external thread. The first internal thread and the first external thread mate to make the sight glass adapter and the connector threadedly connected.

3. The connection assembly of claim 1, wherein, A first sealing structure is provided between the sight glass adapter and the connector.

4. The connection assembly of claim 3, wherein, The outer periphery of the connector is provided with an annular step facing the sight glass adapter, and the first sealing structure includes a first sealing ring abutting between the sight glass adapter and the annular step.

5. The connection assembly of claim 1, wherein, The second end of the connector is provided with a second external thread, and the locking member is provided with a second internal thread. The second external thread and the second internal thread cooperate to make the connector and the locking member threadedly connected.

6. The connection assembly of claim 1, wherein, The inner circumferential surface of the locking member is provided with an annular inner edge. When the connecting member is connected to the locking member, the second end of the connecting member and the annular inner edge clamp the annular boss of the oil level sensor.

7. The connection assembly of claim 6, wherein, A second sealing structure is provided between the connector and the annular boss of the oil level sensor, and / or between the annular boss and the inner edge of the annulus.

8. A compressor characterized by, It includes a compressor housing, an oil level sensor, and a connection assembly according to any one of claims 1-7.

9. The compressor of claim 8, wherein, The oil level sensor has a mounting connector, and the outer peripheral surface of the mounting connector is surrounded by the annular boss. The outer diameter of the annular boss is larger than the inner diameter of the connector and the inner edge of the annular ring, and smaller than the inner diameter of the locking member.

10. The compressor of claim 9, wherein, The oil level sensor includes a tubular element and a floating element. The tubular element is fixed to the compressor housing and is at least partially disposed inside the compressor housing. The floating element is disposed inside the compressor housing and surrounds the tubular element. The mounting joint protrudes from the outer periphery of the locking member and is provided with a calibration plane. The calibration plane is perpendicular to or parallel to the movement path of the floating element of the oil level sensor.

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