Stator mounting structure and compressor

Abstract

The utility model provides a stator mounting structure and a compressor, the stator mounting structure is used for mounting a stator in a housing with a cavity, a gap is formed between at least part of the outer peripheral wall of the stator and the inner peripheral wall of the housing, and the mounting structure is arranged at the gap. The mounting structure comprises a mounting cavity defined by the outer peripheral wall of the stator and the inner peripheral wall of the shell, and a connecting piece arranged in the mounting cavity in the axial direction of the stator, and the stator and the shell are fixedly connected together through the connecting piece. According to the stator installation structure, the gap is formed between the stator and the shell, the stator can be conveniently installed in and taken out of the shell, the installation cavity and the connecting piece are arranged at the gap, the connecting piece is installed in the installation groove, the stator and the shell can be fixedly connected together, and the connection between the stator and the shell can be removed by taking down the connecting piece. Therefore, the stator can be installed in the housing, and the stator can be dismounted and maintained conveniently, so that the maintenance cost of the stator can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and in particular to a stator mounting structure; at the same time, the utility model also relates to a compressor provided with the stator mounting structure. Background Art

[0002] The existing electric compressor consists of three parts: a controller, a motor, and a compressor. The motor consists of a stator and a rotor. The rotor fits with the main shaft through an interference fit, and the stator is fixed to the compressor housing. The current method of fixing the stator is to first heat the housing to expand the housing, and then install the stator into the housing. As the size of the inner hole of the housing cools, the stator is tightly held in the housing. However, the assembly process of heating the housing requires heating, which increases energy consumption. At the same time, if problems such as improper assembly or deflection occur during assembly, it is difficult to rework and disassemble, which leads to an increase in the number of scrapped products and easily causes waste. Utility Model Content

[0003] In view of this, the present invention aims to provide a stator mounting structure to facilitate the installation of the stator in a housing and to facilitate the disassembly and maintenance of the stator.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A stator mounting structure is provided for mounting a stator in a housing having a cavity, wherein a gap is formed between at least a portion of the outer peripheral wall of the stator and the inner peripheral wall of the housing; the mounting structure is provided at the gap, and includes a mounting cavity formed by the outer peripheral wall of the stator and the inner peripheral wall of the housing, and a connecting member provided in the mounting cavity along the axial direction of the stator, wherein the connecting member securely connects the stator and the housing together.

[0006] Furthermore, the installation cavity includes a first groove provided on the outer peripheral wall of the stator and extending along its own axial direction, and a second groove corresponding to the first groove and provided on the inner peripheral wall of the housing.

[0007] Furthermore, a groove bottom of the first groove is provided with a groove body which is concave inwardly arranged along the radial direction of the stator, and groove walls of the first groove located on both sides of the groove body are connected to the connecting member.

[0008] Furthermore, the center line of the stator is concentrically arranged with the center line of the housing, and the gap is equidistantly arranged along the outer circumference of the stator; the mounting cavities are multiple and spaced apart along the circumference of the stator, and the connecting members are arranged in a one-to-one correspondence with the mounting cavities.

[0009] Furthermore, the center line of the stator is eccentrically arranged with respect to the center line of the housing, and a portion of the outer peripheral wall of the stator abuts against the housing, a gap is formed between another portion of the outer peripheral wall and the housing, and the mounting cavity is arranged at the largest gap.

[0010] Furthermore, the connecting member is provided with a radially outwardly protruding limiting portion, which can abut against the stator to limit the insertion depth of the connecting member in the installation cavity; and / or the connecting member is made of an elastic material.

[0011] Furthermore, the connecting member and the installation cavity are interference fit; or, the connecting member and the installation cavity are clearance fit, and the connecting member is connected to the installation cavity via a filling body filled in the installation cavity.

[0012] Furthermore, the inner circumference of the shell is provided with a radial inward convexity, and a plurality of protrusions are arranged at intervals along the circumference of the shell, and at least one of the protrusions is arranged corresponding to the gap.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The stator mounting structure described in the utility model facilitates the installation and removal of the stator in the housing by forming a gap between the stator and the housing, and by providing a mounting cavity and a connecting piece at the gap, the connecting piece is installed in the mounting groove, so that the stator and the housing can be fixed together. The connection between the stator and the housing can be released by removing the connecting piece, which not only facilitates the installation of the stator in the housing, but also facilitates the disassembly and maintenance of the stator, thereby helping to reduce the maintenance cost of the stator.

[0015] In addition, the first groove and the second groove have a simple structure, are easy to process and form, and are conducive to improving the connection effect between the connecting member and the stator and the housing, thereby helping to improve the fixing effect of the stator on the housing. By providing a groove body at the bottom of the first groove, it is conducive to reducing the contact area between the connecting member and the first groove, thereby helping to reduce the radial deformation of the stator, and further ensuring the reliability of the stator. When the center line of the stator is concentric with the center line of the housing, and the gap is equidistantly arranged along the outer circumference of the stator, the coordination of multiple connecting members and the mounting cavity is conducive to improving the fixing stability of the stator on the housing. When the center line of the stator is eccentric with the center line of the housing, the mounting cavity is arranged at the largest gap, which is conducive to improving the fixing effect of the stator on the housing.

[0016] Furthermore, the provision of a stopper limits the insertion depth of the connector within the mounting cavity, thereby facilitating easier installation. The connector is made of an elastic material, providing a shock-absorbing effect during connection. The interference fit between the connector and the mounting cavity ensures a secure connection between the stator and the housing. The clearance fit between the connector and the mounting cavity, combined with the filling of the filler, ensures a secure connection between the stator and the housing, also achieving a good connection. The provision of multiple protrusions on the housing reduces the contact area between the stator and the housing, further facilitating installation and removal of the stator. At least the alignment of the protrusions with the clearances facilitates the arrangement and installation of the connector.

[0017] In addition, another object of the present invention is to provide a compressor, comprising a housing having a cavity, and a motor assembly disposed in the housing, wherein the stator in the motor assembly is mounted on the housing via the stator mounting structure as described above.

[0018] Furthermore, it also includes a controller provided on the shell, and the controller can abut against the connecting member to prevent the connecting member from escaping from the installation cavity.

[0019] The compressor of the present invention enables the stator in the motor assembly to be mounted on the housing through the stator mounting structure as described above, which facilitates the installation and removal of the stator.

[0020] In addition, the abutment between the controller and the connecting piece can prevent the connecting piece from falling out of the installation cavity, thereby further improving the reliability of the connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a structural diagram of the stator mounting structure according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the stator mounting structure according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic structural diagram of a connector in one structural form when the gaps are arranged equidistantly according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic structural diagram of a connector in another structural form when the gaps are arranged equidistantly according to an embodiment of the present utility model;

[0026] Figure 5This is a schematic structural diagram of a stator provided with a slot according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the structure when the gaps are not set at equal distances according to an embodiment of the present utility model;

[0028] Figure 7 This is a structural schematic diagram of the housing and controller in an assembled state according to an embodiment of the present utility model.

[0029] Description of reference numerals:

[0030] 1. Housing; 2. Stator; 3. Connector; 4. Mounting cavity; 5. Controller;

[0031] 100, gap; 101, protrusion; 102, groove;

[0032] 301, limit part;

[0033] 401, second groove; 402, first groove. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0035] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "back" appear, they are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0037] This embodiment relates to a stator mounting structure for mounting a stator 2 in a housing 1 having a cavity, and solves the problem in the prior art that the stator 2 is mounted in an unreasonable manner, resulting in a complicated installation process and difficulty in disassembling and maintaining the stator 2.

[0038] In terms of the overall structure, a gap 100 is formed between at least part of the outer circumferential wall of the stator 2 and the inner circumferential wall of the housing 1. The mounting structure is arranged at the gap 100. The mounting structure includes a mounting cavity 4 formed by the outer circumferential wall of the stator 2 and the inner circumferential wall of the housing 1, and a connecting member 3 arranged in the mounting cavity 4 along the axial direction of the stator 2. The connecting member 3 securely connects the stator 2 and the housing 1 together.

[0039] The stator mounting structure described in this embodiment facilitates the installation and removal of the stator 2 into the housing 1 by forming a gap 100 between the stator 2 and the housing 1. By providing a mounting cavity 4 and a connector 3 at the gap 100 and installing the connector 3 into the mounting groove, the stator 2 and the housing 1 can be fixed together. The connection between the stator 2 and the housing 1 can be released by removing the connector 3. This not only facilitates the installation of the stator 2 in the housing 1, but also facilitates the disassembly and maintenance of the stator 2, thereby helping to reduce the maintenance cost of the stator 2.

[0040] Based on the above overall introduction, an exemplary structure of the stator mounting structure in this embodiment is as follows: Figure 1 and Figure 2 As shown in . As a preferred embodiment, the mounting cavity 4 includes a first groove 402 provided on the outer peripheral wall of the stator 2 and extending along its own axial direction, and a second groove 401 provided on the inner peripheral wall of the housing 1 corresponding to the first groove 402. Here, the mounting cavity 4 is formed between the first groove 402 and the second groove 401, which not only facilitates processing and molding, but also increases the contact area between the connecting member 3 and the stator 2 and the housing 1, thereby improving the connection effect between the connecting member 3, the stator 2 and the housing 1, and preventing the stator 2 from rotating relative to the housing 1, thereby having better installation reliability, thereby improving the fixing effect of the stator 2 on the housing 1.

[0041] In a specific implementation, the installation cavity 4 has an installation opening for the connector 3 to be installed, that is, the end of the first groove 402 toward which the connector 3 is inserted passes through the stator 2, and the other end of the first groove 402 can pass through the stator 2. The second groove 401 is provided corresponding to the first groove 402. In order to improve the installation convenience of the connector 3, in this embodiment, Figure 2 As shown in FIG, the connector 3 is provided with a radially outwardly protruding limit portion 301, which can abut against the stator 2 to limit the insertion depth of the connector 3 into the installation cavity 4. Here, the provision of the limit portion 301 can limit the insertion depth of the connector 3 into the installation cavity 4, thereby facilitating the installation of the connector 3.

[0042] The limiting portion 301 is preferably a limiting ring disposed along the circumference of the connector 3. This increases the contact area between the limiting portion 301 and the stator 2, thereby achieving a better limiting effect. Furthermore, the limiting ring has a simple structure and is easy to process and form. Of course, in practice, the limiting portion 301 may also include multiple limiting protrusions spaced apart along the circumference of the connector 3. The multiple limiting protrusions cooperate to abut against the stator 2, thereby achieving a better limiting effect.

[0043] As a feasible implementation, the connector 3 in this embodiment is interference-fitted with the mounting cavity 4, which helps ensure the connection between the stator 2 and the housing 1. When the connector 3 is made of a hard material, the connector 3 can be a cylindrical pin, a screw, a flat key, etc. In this case, the shape of the mounting cavity 4 is preferably adapted to the shape of the connector 3 to further improve the performance of the connector 3.

[0044] In this embodiment, the connector 3 can also be made of an elastic material, allowing it to provide a shock-absorbing effect while providing connection. When made of an elastic material, the connector 3 can be an elastic body made of rubber or an elastic sheet made of a spring. When the connector 3 is an elastic body, it is directly interference-fitted into the mounting cavity 4, with the shape of the elastic body being compatible with the mounting cavity 4.

[0045] Wherein, when the connecting member 3 is an elastic sheet, Figure 6 As shown in FIG, the elastic piece may be in a "U" shape, which is installed in the installation cavity 4 of the rectangular parallelepiped. Or the connecting member 3 may be Figure 5 The elastic cotter pin has an opening extending through the axial direction on one side and is elastic. In this case, the mounting cavity 4 is cylindrical. Alternatively, the connector 3 may be Figure 4 The expansion nail shown in also has better connection and shock absorption effects.

[0046] As another feasible embodiment, the connector 3 in this embodiment has a clearance fit with the mounting cavity 4, and the connector 3 is connected to the mounting cavity 4 via a filler filled in the mounting cavity 4. The clearance fit between the connector 3 and the mounting cavity 4, and the filling of the filler, can achieve a good connection between the stator 2 and the housing 1.

[0047] The filler in this embodiment can be glue or resin. During implementation, a fluid or semi-fluid material, such as glue or resin, can be first injected into the mounting cavity 4, and then the connector 3 can be inserted. As the glue or resin solidifies, the connector 3 is secured, connecting the stator 2 and the housing 1. It should be noted that the filler can be made of materials other than glue and resin, such as nylon and rubber. In this case, the filler ensures an interference fit between the connector 3 and the mounting cavity 4. This arrangement not only meets the connection requirements of the connector, but also provides a certain shock absorption effect.

[0048] In addition, if Figure 3 As shown in FIG, the inner circumference of the housing 1 is provided with a radially inward projection and a plurality of protrusions 101 spaced apart along the circumference of the housing 1, with at least one protrusion 101 corresponding to the gap 100. This arrangement helps reduce the contact area between the stator 2 and the housing 1, further facilitating the installation and removal of the stator 2. At least the placement of the protrusions 101 corresponding to the gap 100 facilitates the arrangement and installation of the connector 3.

[0049] As a feasible implementation method, Figure 3 and Figure 4 As shown in , the centerline of the stator 2 is concentrically arranged with the centerline of the housing 1, gaps 100 are equidistantly arranged along the outer circumference of the stator 2, a plurality of mounting cavities 4 are spaced apart along the circumference of the stator 2, and the connectors 3 are arranged in a one-to-one correspondence with the mounting cavities 4. In this case, gaps 100 are formed between each protrusion 101 and the stator 2. By concentrically arranging the centerline of the stator 2 with the centerline of the housing 1 and equidistantly arranged the gaps 100 along the outer circumference of the stator 2, the cooperation between the multiple connectors 3 and the mounting cavities 4 facilitates improving the stability of the stator 2 fixed to the housing 1.

[0050] In specific implementation, in this embodiment, the number of mounting cavities 4 and connecting members 3 is preferably set in a one-to-one correspondence with the protrusions 101, which helps to further ensure the installation stability of the stator 2. Of course, a solution in which multiple mounting cavities 4 are spaced apart between some protrusions 101 and the stator 2 is also feasible, as long as the connection requirements are met.

[0051] As another possible implementation method, Figure 6 As shown in , the centerline of the stator 2 in this embodiment can also be eccentrically arranged with respect to the centerline of the housing 1, with a portion of the outer peripheral wall of the stator 2 abutting against the housing 1, and a gap 100 formed between the other portion of the outer peripheral wall and the housing 1, and the mounting cavity 4 being arranged at the maximum gap 100. By eccentrically arranging the centerline of the stator 2 with respect to the centerline of the housing 1 and arranging the mounting cavity 4 at the maximum gap 100, the fixing effect of the stator 2 on the housing 1 is also improved. In this case, a better connection effect can be achieved with fewer mounting cavities 4 and connectors 3, further helping to reduce production costs.

[0052] Specifically, Figure 6 Taking the perspective shown in as a reference, the bottom of the stator 2 abuts against the protrusion 101 on the housing 1. The gap 100 between the two sides of the stator 2 and the corresponding protrusion 101 on the housing 1 is set to gradually increase from bottom to top. The gap 100 between the top of the stator 2 and the housing 1 is the largest. The mounting cavity 4 is set at the top and is opposite to the abutment between the stator 2 and the housing 1. In this case, at least one mounting cavity 4 and one connector 3 are required to meet the connection requirements. The width b of the maximum gap 100 is equal to the difference a between the inner radius of the housing 1 and the radius of the stator 2. Of course, the number of mounting cavities 4 and connectors 3 between the left and right sides of the stator 2 and the housing 1 can also be increased as long as the connection requirements are met.

[0053] In order to further improve the installation effect of the stator 2, as Figure 5As shown in FIG, the bottom of the first groove 402 is provided with a groove body 102, which is recessed radially inwardly along the stator 2. The groove walls of the first groove 402, located on either side of the groove body 102, are connected to the connector 3. In other words, the contact area between the connector 3 and the first groove 402 is located on the left and right sides of the line connecting the center of the mounting cavity 4 and the center of the stator 2. The provision of the groove body 102 at the bottom of the first groove 402 helps reduce the contact area between the connector 3 and the first groove 402, thereby reducing radial deformation of the stator 2 and thereby enhancing the reliability of the stator 2.

[0054] The stator mounting structure described in this embodiment optimizes its own structure and adopts a method of cooperating between the connecting member 3 and the mounting groove to achieve the fixation of the stator 2 on the housing 1. Compared with the solution of heating the housing 1 in the prior art, it is beneficial to reduce energy consumption and also facilitate the installation and removal of the stator 2 on the housing 1, thereby reducing the disassembly and maintenance costs of the stator 2.

[0055] In addition, this embodiment also relates to a compressor, comprising a housing 1 having a cavity, and a motor assembly disposed in the housing 1, wherein the stator 2 in the motor assembly is mounted on the housing 1 via the stator mounting structure as described above.

[0056] As a preferred embodiment, Figure 7 As shown in , the compressor in this embodiment further includes a controller 5 disposed on the housing 1. The controller 5 is capable of abutting against the connector 3 to prevent the connector 3 from falling out of the mounting cavity 4. Specifically, the controller 5 is disposed on the housing 1, with the housing portion of the controller 5 being located to the left of the connector 3 in the connected state and disposed close to the connector 3. In other words, the housing portion of the controller 5 is located on the path of the connector 3 from falling out of the mounting cavity 4, thereby preventing the connector 3 from falling out of the mounting cavity 4, thereby facilitating the reliability of the connector 3.

[0057] The compressor described in this embodiment enables the stator 2 in the motor assembly to be installed on the housing 1 through the stator mounting structure as described above, which is conducive to the installation and disassembly of the stator 2, and the components around the connecting member 3 are used to limit its escape from the mounting cavity 4, which is conducive to improving the connection effect between the stator 2 and the housing 1.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stator mounting structure for mounting a stator (2) in a housing (1) having a cavity, characterized in that: A gap (100) is formed between at least a portion of the outer peripheral wall of the stator (2) and the inner peripheral wall of the housing (1); The mounting structure is arranged at the gap (100), and comprises a mounting cavity (4) formed by the outer peripheral wall of the stator (2) and the inner peripheral wall of the housing (1), and a connecting member (3) arranged in the mounting cavity (4) along the axial direction of the stator (2), wherein the connecting member (3) securely connects the stator (2) and the housing (1) together.

2. The stator mounting structure according to claim 1, characterized in that: The mounting cavity (4) comprises a first groove (402) provided on the outer peripheral wall of the stator (2) and extending along its own axial direction, and a second groove (401) corresponding to the first groove (402) and provided on the inner peripheral wall of the housing (1).

3. The stator mounting structure according to claim 2, characterized in that: The bottom of the first groove (402) is provided with a groove body (102) which is concave inwardly arranged along the radial direction of the stator (2), and the groove walls of the first groove (402) located on both sides of the groove body (102) are connected to the connecting member (3).

4. The stator mounting structure according to claim 1, characterized in that: The center line of the stator (2) is concentrically arranged with the center line of the housing (1), and the gaps (100) are equidistantly arranged along the outer circumference of the stator (2); The installation cavities (4) are multiple and spaced apart along the circumference of the stator (2), and the connecting members (3) are arranged in a one-to-one correspondence with the installation cavities (4).

5. The stator mounting structure according to claim 1, characterized in that: The center line of the stator (2) and the center line of the housing (1) are eccentrically arranged, and a portion of the outer peripheral wall of the stator (2) abuts against the housing (1), and a gap (100) is formed between another portion of the outer peripheral wall and the housing (1), and the mounting cavity (4) is arranged at the largest gap (100).

6. The stator mounting structure according to claim 1, characterized in that: The connecting member (3) is provided with a radially outwardly protruding limiting portion (301), and the limiting portion (301) is capable of abutting against the stator (2) to limit the insertion depth of the connecting member (3) in the installation cavity (4); and / or, The connecting piece (3) is made of elastic material.

7. The stator mounting structure according to claim 1, characterized in that: The connecting member (3) and the mounting cavity (4) are interference fit; or, The connecting piece (3) is clearance-fitted with the installation cavity (4), and the connecting piece (3) is connected to the installation cavity (4) via a filling body filled in the installation cavity (4).

8. The stator mounting structure according to any one of claims 1 to 7, characterized in that: The inner circumference of the shell (1) is provided with a radial inward convexity, and a plurality of protrusions (101) are arranged at intervals along the circumference of the shell (1), and at least one of the protrusions (101) is arranged corresponding to the gap (100).

9. A compressor, characterized in that: The invention comprises a housing (1) having a cavity, and a motor assembly arranged in the housing (1), wherein a stator (2) in the motor assembly is mounted on the housing (1) by means of a stator mounting structure according to any one of claims 1 to 8.

10. The compressor according to claim 9, characterized in that: It also includes a controller (5) provided on the housing (1), and the controller (5) can abut against the connecting member (3) to prevent the connecting member (3) from falling out of the installation cavity (4).

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