Compressor and method of manufacturing the same

Abstract

The application provides a compressor, which comprises a shell and a secondary bearing, the shell comprises a shell part and a mounting plate, the shell part has a mounting cavity; the mounting plate is connected with the shell part, and the mounting plate is located at the periphery of the mounting cavity; the compressor comprises a main bearing cover and a main bearing, the main bearing cover is connected with the shell part, and the main bearing cover is located at the periphery of the mounting cavity, the main bearing cover has a main bearing through hole, and the main bearing is located in the main bearing through hole; the mounting plate has a mounting hole channel, the mounting hole channel is communicated with the mounting cavity, the mounting hole channel is arranged through the mounting plate, and the secondary bearing is at least partially located in the mounting hole channel. The application can improve the coaxiality of the processing mounting hole channel. The application also provides a manufacturing method of the compressor.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and more particularly to a compressor and a method for manufacturing the same. Background Technology

[0002] A compressor can compress low-pressure, low-temperature refrigerant gas into high-pressure, high-temperature refrigerant gas. The main compression components of a scroll compressor are a stationary scroll and a moving scroll, which mesh to form a compression chamber to compress the incoming gas.

[0003] In related technologies, refer to Figure 12 The compressor includes a housing 1, which includes a housing portion 11 and a mounting plate 12. The housing portion 11 has a mounting cavity 111. The mounting plate 12 is located around the mounting cavity 111 and is integrally formed with the housing portion 11. A secondary bearing seat 114 protrudes from one end face of the mounting plate 12 facing the mounting cavity 111. The secondary bearing seat 114 is located inside the mounting cavity 111 and has a secondary bearing groove 115. Since the secondary bearing groove 115 does not penetrate the mounting plate 12, when machining the secondary bearing groove 115 on the mounting plate 12, a longer cutting tool needs to be inserted into the mounting cavity 111 from the side of the mounting cavity 111 away from the mounting plate 12 to machine the secondary bearing groove 115. The longer cutting tool is prone to vibration, and the coaxiality of the machined secondary bearing groove 115 is not high. Summary of the Invention

[0004] This application provides a compressor, including a housing and a secondary bearing. The housing includes a housing portion and a mounting plate, the housing portion having a mounting cavity. The mounting plate is connected to the housing portion and is located around the mounting cavity. The compressor includes a main bearing cover and a main bearing. The main bearing cover is connected to the housing portion and is located around the mounting cavity. The main bearing cover has a main bearing through hole, and the main bearing is located in the main bearing through hole.

[0005] The mounting plate has mounting holes that extend through the mounting plate, and the secondary bearing is at least partially located within the mounting holes.

[0006] In this application, the mounting plate has mounting channels that communicate with the mounting cavity. The mounting channels are set through the mounting plate, allowing the mounting channels to be processed from the side of the mounting plate away from the mounting cavity without having to extend into the mounting cavity to process the mounting channels, thus improving the coaxiality of the processed holes.

[0007] This application also provides a method for manufacturing a compressor, comprising the following steps:

[0008] A housing is provided, the housing including a housing portion and a mounting plate, the housing portion having a mounting cavity, the mounting plate being connected to the housing portion and located around the mounting cavity;

[0009] A mounting hole is formed on the mounting plate from the side opposite to the mounting cavity; wherein the mounting hole communicates with the mounting cavity and extends through the mounting plate.

[0010] In this application, mounting holes are formed on the side of the mounting plate away from the mounting cavity, thereby improving the coaxiality of the mounting holes. Attached Figure Description

[0011] Figure 1 This is a perspective view of one embodiment of the compressor in this application;

[0012] Figure 2 This is a cross-sectional view of the compressor in this application;

[0013] Figure 3 for Figure 2 An exploded view used to show the barrier plate;

[0014] Figure 4 for Figure 3 An enlarged view of circle A in the middle, used to show the baffle plate and the sealing part;

[0015] Figure 5 for Figure 3 Exploded view;

[0016] Figure 6 for Figure 5 A front view of the inner and outer shell, used to show the mounting cavity, the first through hole, the second through hole, and the machining space;

[0017] Figure 7 for Figure 3 A three-dimensional sectional view of the main bearing cover and the main shaft;

[0018] Figure 8 for Figure 7 A three-dimensional sectional view of the main bearing cap;

[0019] Figure 9 This is a perspective view of another embodiment of the compressor in this application;

[0020] Figure 10 for Figure 9 A three-dimensional sectional view;

[0021] Figure 11 for Figure 10 Exploded view.

[0022] Figure 12This is a 3D diagram of the related technology. Detailed Implementation

[0023] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0024] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0025] Reference Figure 1 as well as Figure 2 This application provides one embodiment of a compressor, including a motor unit 7, a control unit 6, and a scroll unit 8. The compressor has a height direction Z. The control unit 6, the motor unit 7, and the scroll unit 8 are distributed sequentially along the height direction Z of the compressor. The control unit 6 is connected to the motor unit 7, and the motor unit 7 is connected to the scroll unit 8.

[0026] Reference Figure 2 as well as Figure 6 The outer casing 1 includes a casing portion 11 and a mounting plate 12. The casing portion 11 has a mounting cavity 111, a first connecting hole 112, and a second connecting hole 113. The first connecting hole 112, the mounting cavity 111, and the second connecting hole 113 are distributed sequentially along the height direction Z. The first connecting hole 112 is closer to the control unit 6 than the mounting cavity 111, and the mounting cavity 111 is closer to the first connecting hole 112 than the second connecting hole 113. The first connecting hole 112 penetrates the casing portion 11 along the height direction Z, enabling communication between the first connecting hole 112 and the outside of the casing portion 11, and the first connecting hole 112 is connected to the mounting cavity 111. The second connecting hole 113 penetrates the casing portion 11 along the height direction Z, enabling communication between the second connecting hole 113 and the outside of the casing portion 11, and the second connecting hole 113 is connected to the mounting cavity 111.

[0027] Reference Figure 3 as well as Figure 4 The mounting plate 12 is located on the side of the first through hole 112 away from the mounting cavity 111. In some embodiments, the mounting plate 12 is located inside the first through hole 112. In some embodiments, the mounting plate 12 covers at least part of the first through hole 112. The mounting plate 12 and the housing part 11 are integral parts. In some embodiments, the connection between the mounting plate 12 and the housing part 11 can be a welding connection, a snap-fit ​​connection, a bolt connection, or an adhesive connection.

[0028] Reference Figure 3 as well as Figure 5The mounting plate 12 has a mounting channel 121 for mounting the secondary bearing 53. The mounting channel 121 extends through the mounting plate 12 along the height direction Z, so that the mounting channel 121 is connected to the first connecting hole 112. The mounting channel 121 and the mounting cavity 111 are connected to each other through the first connecting hole 112. In some embodiments, the mounting cavity 111, the first connecting hole 112 and the second connecting hole 113 are all cylindrical.

[0029] Reference Figure 5 as well as Figure 6 The mounting plate 12 has a machining space 3 on the side opposite to the first connecting hole 112. When machining the mounting hole 121 on the mounting plate 12, the tool can be fed from the machining space 3, thereby reducing the required tool length. The reduced tool length can effectively reduce tool vibration during machining and improve the coaxiality of the mounting hole 121. In related technologies, the mounting hole 121 is machined on the control unit 6. Since the control unit 6 needs to be reconnected to the housing 1, the coaxiality of the mounting hole 121 and the housing 1 is also affected by the assembly accuracy between the control unit 6 and the housing 1. By directly forming the mounting hole 121 on the housing 1, on the one hand, the impact of assembly accuracy on the coaxiality of the mounting hole 121 is reduced, the cost is reduced, and the accuracy is improved. On the other hand, the length of the spindle 5 is shortened, saving the material of the spindle 5.

[0030] Reference Figure 5 as well as Figure 6 An embedding groove 122 is provided on one end face of the mounting plate 12 away from the first connecting hole 112. The embedding groove 122 is connected to the mounting channel 121. The embedding groove 122 is exposed to the outside of the outer shell 1. The embedding groove 122 and the mounting channel 121 are aligned and arranged. The diameter of the embedding groove 122 is larger than the diameter of the mounting channel 121. In some embodiments, both the embedding groove 122 and the mounting channel 121 are cylindrical.

[0031] Reference Figure 4 as well as Figure 5 The compressor includes a baffle plate 2 and a sealing part 23. The baffle plate 2 has a sealing groove 24 on its peripheral sidewall. The sealing groove 24 is annular. The sealing part 23 is an annular sealing ring. The annular sealing ring is at least partially located in the sealing groove 24. The annular sealing ring abuts against the sidewall of the sealing groove 24, thereby improving the sealing performance between the baffle plate 2 and the inner wall of the sealing groove 24. The sealing groove 24 may also be multiple separate arc-shaped grooves. The sealing part 23 is strip-shaped, and at least part of the sealing part 23 is located in the sealing groove 24.

[0032] Reference Figure 4 as well as Figure 5The baffle plate 2 is located in the embedded groove 122 and is cylindrical. The embedded groove 122 is circular. The baffle plate 2 is fixedly connected or limited to the mounting plate 12. Specifically, the control unit 6 includes a controller housing 4 and a control plate 41. The control plate 41 is located in the controller housing 4. The controller housing 4 has an abutment part 42. The controller housing 4 is fixedly connected or limited to the mounting plate 12. The controller housing 4 and the mounting plate 12 can be connected by bolts, welded, or fixed pins.

[0033] When the baffle plate 2 and the mounting plate 12 are installed together, the embedded groove 122 can preposition the baffle plate 2 on the mounting plate 12, which facilitates the subsequent connection of the baffle plate 2 and the mounting plate 12.

[0034] Reference Figure 4 as well as Figure 5 The contact portion 42 faces the blocking plate 2 and abuts against the blocking plate 2, thereby pressing the blocking plate 2 into the embedding groove 122; this achieves the simultaneous connection of the controller housing 4 and the mounting plate 12, while also pressing the blocking plate 2 into the embedding groove 122, resulting in a simple structure; in some embodiments, the blocking plate 2 is fixedly connected to the housing portion 11; in some embodiments, the blocking plate 2 blocks and covers at least part of the mounting hole 121.

[0035] Reference Figure 3 as well as Figure 7 The compressor includes a main shaft 5, a stator 51, a rotor 52, a main bearing cover 54, an oil seal 55, a main bearing 541, and a secondary bearing 53. The main bearing cover 54 is at least partially located between the housing portion 11 and the scroll portion 8. The main bearing cover 54 is at least partially located in the second connecting hole 113. The main bearing cover 54 has a main bearing through hole 542, which includes a main bearing 541 groove, an oil seal 55 groove 5422, and a main shaft 5 through hole.

[0036] Reference Figure 7 as well as Figure 8 The main bearing 541 groove is located on the end face of the main bearing cover 54 away from the mounting cavity 111, and the main bearing 541 groove is aligned with the mounting cavity 111; the oil seal 55 groove 5422 is located at the bottom of the main bearing 541 groove, and the oil seal 55 groove 5422 is aligned with the main bearing 541 groove; the main shaft 5 through hole is located at the bottom of the oil seal 55 groove 5422, and the main shaft 5 through hole is aligned with the oil seal 55 groove 5422. The main shaft 5 through hole penetrates the main bearing cover 54 along the height direction Z, so as to realize the connection between the main shaft 5 through hole and the mounting cavity 111.

[0037] Reference Figure 3 as well as Figure 7The oil seal 55 is located in the oil seal 55 groove 5422, the main bearing 541 is located in the main bearing 541 groove, and the auxiliary bearing 53 is located in the mounting hole 121. One end of the main shaft 5 is inserted into the inner ring of the auxiliary bearing 53, and the other end of the main shaft 5 passes through the main shaft 5 through hole and is inserted into the oil seal 55 and the inner ring of the main bearing 541 in sequence.

[0038] Reference Figure 3 as well as Figure 5 The rotor 52 is located inside the mounting cavity 111, the main shaft 5 passes through the rotor 52, and the rotor 52 is fixedly connected to the main shaft 5. The stator 51 is located outside the rotor 52, and the stator 51 is located inside the mounting cavity 111, and the stator 51 is fixedly connected to the inner wall of the mounting cavity 111.

[0039] During machining, the cutting tool is fed along the machining space 3, greatly shortening the required tool length and reducing tool vibration caused by excessive tool length during machining. This improves the machining accuracy of the mounting channel 121. After machining the mounting channel 121, the embedding groove 122 is machined. During installation, the auxiliary bearing 53 is installed in the mounting channel 121, the annular sealing ring is installed in the sealing groove 24 on the baffle plate 2, and then the baffle plate 2 is pressed into the sealing groove 24.

[0040] In this way, when installing the secondary bearing 53, it is not necessary to insert the secondary bearing 53 into the mounting cavity 111 for installation. The secondary bearing 53 can be placed into the mounting channel 121 through the machining space 3. In related technologies, the operable space is within the mounting cavity 111. This application increases the operable space for installers, making the installation process of the secondary bearing 53 more convenient. The blocking plate 2 is first pressed into the embedding groove 122 to achieve the pre-positioning of the blocking plate 2, which facilitates the subsequent connection of the controller housing 4 and the mounting plate 12 by the installer. The abutting part 42 on the controller housing 4 abuts against the blocking plate 2, so as to connect the controller housing 4 and the mounting plate 12 at the same time, and limit the blocking plate 2 to the mounting plate 12, simplifying the structure.

[0041] Reference Figure 9 , Figure 10 as well as Figure 11 This application also provides another embodiment of the compressor, which differs from the above embodiment in that: the sealing part 23 includes a circular sealing gasket, which is located between the baffle plate 2 and the mounting plate 12. The baffle plate 2, the sealing gasket, and the mounting plate 12 are distributed sequentially along the height direction Z, and the sealing gasket completely covers the mounting hole 121. The baffle plate 2 has a first through hole 25, and the sealing gasket has a second through hole 231. The sealing gasket abuts against the mounting plate 12 and the baffle plate 2.

[0042] Reference Figure 9 , Figure 10 as well as Figure 11The controller housing 4 does not have an abutment part 42. The mounting plate 12 does not have an embedding groove 122. The blocking plate 2 is located on the side of the mounting plate 12 away from the mounting cavity 111. The blocking plate 2 is fixedly connected or limited to the mounting plate 12.

[0043] Reference Figure 9 , Figure 10 as well as Figure 11 Specifically, the compressor includes a blocking part 22 and a threaded part 21. The length direction of the threaded part 21 is parallel to the height direction Z. The threaded part 21 passes through the first through hole 25 and the second through hole 231 in sequence, and the threaded part 21 is threadedly connected to the mounting plate 12. The blocking part 22 and the threaded part 21 are integral parts. The blocking part 22 is located on the side of the blocking plate 2 away from the mounting plate 12, and the blocking part 22 abuts against the blocking plate 2.

[0044] In some embodiments, the blocking plate 2 and the mounting plate 12 can be welded, bonded, snap-fitted, or threadedly connected. In some embodiments, four threaded portions 21 and four blocking portions 22 are provided, with each of the four threaded portions 21 corresponding to one of the four blocking portions 22. Specifically, the threaded portions 21 and the blocking portions 22 are integral parts. The threaded portions 21 are evenly distributed circumferentially along the axis of the blocking plate 2. Four first through holes 25 and four second through holes 231 are provided. The four first through holes 25 are evenly distributed circumferentially along the axis of the blocking plate 2, and each of the four first through holes 25 corresponds to one of the four threaded portions 21. The four second through holes 231 are evenly distributed circumferentially along the axis of the sealing gasket, and each of the four second through holes 231 corresponds to one of the four threaded portions 21.

[0045] During installation, the threaded part 21 is passed through the first through hole 25 and the second through hole 231 in sequence, and then the threaded part 21 is threadedly connected to the mounting plate 12, so that the blocking part 22 abuts against the blocking plate 2. The sealing height between the blocking plate 2 and the mounting plate 12 is adjusted by the tightening degree of the threaded part 21.

[0046] This application also provides a method for manufacturing a compressor, comprising the following steps:

[0047] A housing 1 is provided, comprising a housing portion 11 and a mounting plate 12. The housing portion has a mounting cavity 111, a first through hole 112, and a second through hole 113. The first through hole 112 and the second through hole 113 are respectively located on opposite sides of the mounting cavity 111. The first through hole 112 communicates with the outside of the housing portion 11 and with the mounting cavity 111. The second through hole 113 communicates with the outside of the housing portion 11 and with the mounting cavity 111. The first through hole 112 is closer to the mounting cavity 111 than the mounting plate 12.

[0048] A cutting tool is provided, and the space of the mounting plate 12 away from the mounting cavity 111 is defined as the machining space 3. The cutting tool performs machining on the mounting plate 12 from the machining space 3, and forms a mounting channel 121 on the mounting plate 12. The mounting channel 121 penetrates the mounting plate 12 along the height direction Z, so that the mounting channel 121 is connected to the mounting cavity 111 and the machining space 3. This reduces the length required by the cutting tool, greatly improves the coaxiality of the machining of the mounting channel, and makes the installation of the secondary bearing more convenient. The cutting tool also forms an embedding groove 122 on the mounting plate 12.

[0049] A secondary bearing 53 is provided, and the secondary bearing 53 is installed into the mounting channel 121 through the self-machined space 3, which increases the operable space during installation and greatly facilitates the installation of the secondary bearing 53 into the mounting channel 121.

[0050] A baffle plate 2 is provided, the baffle plate 2 having an annular sealing groove 24;

[0051] A ring-shaped sealing ring is provided and installed in the sealing groove 24;

[0052] Press the baffle plate 2 with the annular sealing ring into the embedded groove 122;

[0053] A controller housing 4 is provided, which has an abutment part 42. The controller housing 4 is connected to the mounting plate 12 so that the abutment part 42 abuts against the blocking plate 2, and the blocking plate 2 is confined in the embedded groove 122. The structure is simple.

[0054] The above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. The understanding of this specification should be based on those skilled in the art. For example, directional descriptions such as "front", "back", "left", "right", "up", and "down" are only used to describe the relationship between objects and are not substantial limitations. "Multiple" means at least two or more.

[0055] Although this specification has described the present application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present application, and all technical solutions and improvements that do not depart from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A compressor, characterized in that, The compressor includes a housing and a secondary bearing. The housing includes a housing portion and a mounting plate, the housing portion having a mounting cavity. The mounting plate is connected to the housing portion and is located around the mounting cavity. The compressor includes a main bearing cover and a main bearing. The main bearing cover is connected to the housing portion and is located around the mounting cavity. The main bearing cover has a main bearing through hole, and the main bearing is located in the main bearing through hole. The mounting plate and the housing are integral parts. The housing has a first through hole and a second through hole. The mounting plate has a machining space on the side opposite to the first through hole. The mounting plate has a mounting channel that extends through the mounting plate. The secondary bearing is at least partially located in the mounting channel.

2. The compressor according to claim 1, characterized in that, The compressor includes a baffle plate, at least partially located on the side of the auxiliary bearing opposite to the mounting cavity. The baffle plate is fixedly connected or limited to the housing. The baffle plate covers at least a portion of the mounting hole. The compressor includes a threaded portion and a blocking portion. The threaded portion is connected to the blocking portion and penetrates the baffle plate. The threaded portion is threadedly connected to the mounting plate. The blocking portion is located on the side of the baffle plate opposite to the mounting plate and abuts against the baffle plate.

3. The compressor according to claim 2, characterized in that, The compressor includes a sealing part located between the mounting plate and the baffle plate, and the sealing part completely covers the mounting hole. The baffle plate abuts against the sealing part, and the sealing part abuts against the mounting plate. The threaded part penetrates the sealing part.

4. The compressor according to claim 1, characterized in that, The compressor includes a baffle plate, which is at least partially located on the side of the auxiliary bearing away from the mounting cavity. The baffle plate is fixedly connected or limitedly connected to the housing. The mounting plate has an embedding groove that communicates with the mounting channel. The baffle plate is located in the embedding groove and completely covers the mounting channel. The baffle plate is fixedly connected or limitedly connected to the mounting plate.

5. The compressor according to claim 4, characterized in that, The compressor includes a controller housing, which is at least partially located on the side of the baffle plate away from the mounting cavity. The controller housing is connected to the housing portion and abuts against the baffle plate.

6. The compressor according to claim 4, characterized in that, The compressor includes a sealing part, the baffle plate has a sealing groove, the sealing part is located in the sealing groove, and the sealing part abuts against the inner wall of the embedded groove.

7. The compressor according to claim 2 or 4, characterized in that, The first through hole and the second through hole are respectively located on opposite sides of the mounting cavity. The first through hole penetrates the housing portion, and the second through hole penetrates the housing portion. The first through hole is closer to the mounting cavity than the mounting plate; or the mounting plate is located inside the first through hole. The mounting plate completely covers the first through hole, the blocking plate completely covers the mounting channel, and the blocking plate is sealed to the mounting plate.

8. The compressor according to any one of claims 1 to 7, characterized in that, The compressor includes a main shaft, a stator, a rotor, and a secondary bearing. The secondary bearing is located in the mounting hole. One end of the main shaft passes through the inner ring of the secondary bearing, and the other end of the main shaft passes through the inner ring of the main bearing. The rotor and the stator are both located in the mounting cavity. The rotor is connected to the main shaft, and the stator is connected to the housing portion. The stator is located on the periphery of the rotor.

9. A method for manufacturing a compressor, characterized in that, Includes the following steps: A housing is provided, the housing including a housing portion and a mounting plate, the housing portion having a mounting cavity, the mounting plate being connected to the housing portion and located around the mounting cavity; The mounting plate and the housing are integral parts. The housing has a first through hole and a second through hole. The mounting plate has a processing space on the side opposite to the first through hole. The mounting plate is processed from the side opposite to the mounting cavity to form a mounting channel. The mounting channel communicates with the mounting cavity and is disposed through the mounting plate.

10. The method for manufacturing a compressor according to claim 9, characterized in that, After the step of machining the mounting plate to form mounting holes from the side of the mounting plate opposite to the mounting cavity, the method further includes the following steps: The mounting plate is machined from the side of the mounting plate opposite to the mounting cavity to form an embedding groove; A secondary bearing is provided, and the secondary bearing is installed into the mounting hole; A baffle plate is provided, and the baffle plate is installed into the embedding groove.

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