Circumferential rotation constraint type scroll compressor support and compressor
By designing a channel structure that combines a through groove and a stepped platform on the scroll compressor bracket, a complex interlocking mechanism is achieved, solving the problem of circumferential movement of the bracket and improving the connection reliability and stability of the compressor.
Patent Information
- Application Number
- CN202522081500.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2035-09-28
AI Technical Summary
Traditional compressor brackets are prone to circumferential movement during long-term start-stop or harsh operating conditions, leading to damage and wear of internal components and affecting compressor performance.
A circumferential rotation constraint type scroll compressor bracket is designed, which adopts a channel structure combining a through groove and a stepped platform. Through the stamping process, it forms a complex interlock with the compressor housing, providing radial clamping force and end face limiting function to restrict the circumferential rotation and axial movement of the bracket.
It effectively prevents the bracket from loosening, improves connection reliability and rigidity, and enhances the stability and service life of the compressor.
Smart Images
Figure CN223523962U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the compressor technical field, specifically, especially, it relates to a circumferential rotation restraint type scroll compressor support and compressor. BACKGROUND
[0002] The compressor mechanism and the motor are usually arranged in the shell of the compressor and the relative position is fixed, which allows the motor to drive the compressor mechanism. The driving shaft usually extends between the motor and the compressor mechanism and is fixed between the upper support and the lower support, so as to transmit the rotating force generated by the motor to the compressor mechanism. When each component moves, the high-precision positional relationship between each component needs to be ensured to prevent damage or unnecessary wear of each component.
[0003] The upper support can be fixed in the shell and the relative position is determined by riveting the upper support into the shell. Although the conventional riveted upper support can be fixed in the shell, it usually lacks circumferential fixation, which may cause the circumferential movement of the upper support under the condition of long-time start-stop of the compressor or under the condition of encountering harsh working conditions, so that the internal components of the compressor are damaged or excessively worn, and finally the performance of the compressor is reduced or even scrapped. CONTENT OF THE UTILITY MODEL
[0004] According to the technical problem proposed above, a circumferential rotation restraint type scroll compressor support is provided, which realizes a mechanical interlocking structure capable of effectively preventing circumferential rotation, dispersing assembly stress and greatly improving the connection reliability of the support and the shell of the compressor by arranging a unique through groove combined with a stepped sink on the contact end face of the support arm.
[0005] The technical means adopted by the utility model are as follows:
[0006] A circumferential rotation restraint type scroll compressor support, comprising a support frame body, a bearing hole for accommodating a scroll compressor crankshaft is arranged in the middle of the support frame body, at least three radially outwardly extending support arms are uniformly distributed on the circumferential side of the support frame body, and a contact end face for contacting the inner wall of the shell of the compressor is arranged at the end of each support arm.
[0007] At least two mutually parallel through grooves are machined on the contact end face in the transverse direction, so as to divide the contact end face into at least three convex structures.
[0008] At least one side end of at least one convex structure is provided with a stepped sink structure, the stepped sink structure is directly connected with the adjacent through groove, and the two are combined to form a continuous channel structure with stepped turns.
[0009] The technical scheme provides a core mechanical structure, a special and continuous channel structure is designed on the contact end face of the support arm of the support frame, the structure is combined by a through groove and a stepped sink, and the structure is used for forming complex and efficient interlocking with the stamping embedded material of the compressor shell.
[0010] The structure is a basis for realizing all subsequent functions. When stamping, the shell material flows into the continuous channel, not only fills the groove to clamp the protruding structure from the side, but also fills and wraps the stepped sink. The "embedded" interlocking can extremely effectively limit the circumferential rotation and axial movement of the support frame relative to the shell, fundamentally solves the loosening problem that may exist in the traditional point riveting or simple groove fixing, and greatly improves the rigidity and reliability of the connection.
[0011] Further, the number of support arms is 3-6, and the support arms are uniformly distributed along the circumference of the support frame.
[0012] The technical scheme optimizes and limits the number and distribution of the support arms to achieve the best balance between structural strength, material cost, space utilization and force balance. The design of 3-6 support arms and uniform distribution ensures that the support frame can obtain stable and symmetrical support in the compressor. Too few (such as 2) may cause unstable support and be prone to vibration and eccentric wear; too many may complicate the structure, increase the cost and occupy too much internal space. Uniform distribution ensures that the force of the crankshaft is uniformly transmitted to the shell through the support frame, avoids local stress concentration, and improves the running stability and service life of the whole machine.
[0013] Further, the depth of the stepped sink structure is less than the depth of the through groove.
[0014] The technical scheme accurately controls the depth relationship between the stepped sink structure and the through groove to optimize the flowability of the metal material during stamping and the mechanical interlocking strength after forming. The depth of the stepped sink is less than the depth of the through groove, forming a structure combining a "shallow pit" and a "deep groove". This ensures that the material will preferentially and sufficiently fill the deeper through groove during stamping, ensuring that the main clamping force (provided by the clamping part) is strong enough. At the same time, the shallower stepped sink is also sufficient to form a limiting part to provide effective rotation restriction. This depth difference design avoids the problem of insufficient filling of the stamping material or excessive stamping force due to the excessive depth of the sink, optimizes the process and ensures the interlocking effect.
[0015] Further, the surface of the stepped sink structure is a plane or an inclined plane, and the height difference between the stepped sink structure and the adjacent protruding structure is used to adapt to the stamping deformation amount of the shell.
[0016] The technical scheme provides a flexible design scheme for the stepped sink structure, so that it can better adapt to different manufacturing tolerances and actual stamping shapes. The stepped sink surface is designed as a plane or an inclined plane, which increases the adaptability of the design. An inclined plane can better guide the flow of the stamping material and accommodate a certain range of shape changes due to plastic deformation. The height difference between the stepped sink surface and the adjacent protruding structure is the key to forming effective limiting, and the design ensures that even with manufacturing deviations, the limiting part formed by stamping can reliably contact the stepped sink surface, realize stable circumferential constraint, and improve the yield and consistency of the product.
[0017] A scroll compressor, the bracket is arranged in the compressor housing, the side wall of the compressor housing is plastically deformed by a stamping process to form a stamping embedded part protruding inwardly;
[0018] The stamping embedded part comprises:
[0019] A clamping part corresponding to the through groove region of the bracket, the material of the clamping part is embedded in the through groove, and the clamping part is in interference fit with the side wall of the through groove and the side surface of the protruding structure between the two through grooves to clamp and fix the protruding structure;
[0020] A limiting part corresponding to the end region of the protruding structure, the material of the limiting part is embedded in the stepped sink structure of the end of the protruding structure, and the limiting part is in contact with the surface and / or side wall of the stepped sink structure;
[0021] The clamping part and the limiting part jointly form multiple constraints on the axial movement and circumferential rotation of the bracket.
[0022] The technical scheme provides a complete scroll compressor product comprising the innovative bracket, and specifically defines the final mechanical interlocking form and function of the housing and the bracket after the stamping process. The "stamping embedded part" formed by stamping the side wall of the compressor housing is explicitly divided into two functional regions, i.e., a "clamping part" and a "limiting part".
[0023] The clamping part: the material is embedded in a deep groove, tightly holds the protruding structure from the side, and mainly provides radial clamping force and part of the axial fixing force.
[0024] The limiting part: the material is embedded in a shallow table, blocks from the end surface, and mainly provides torque resisting circumferential rotation and auxiliary axial fixing force.
[0025] The two parts jointly form a multiple constraint mechanism combining "clamping" and "blocking", which solves all the problems mentioned in the background art (circumferential rotation and axial movement), and finally creates a scroll compressor product with more compact structure, more reliable connection, more stable operation and longer service life.
[0026] To sum up, the technical scheme of the application realizes mechanical interlocking fixation by innovatively designing a continuous channel structure formed by the combination of the through groove and the stepped sink in the contact end face of the support arm, and combining with the shell stamping process. The design can provide radial clamping force and end face limiting effect at the same time, form multiple constraints on the axial movement and circumferential rotation of the support, thereby greatly enhancing the rigidity and reliability of the connection, effectively preventing looseness and abnormal sound during the operation of the compressor, and improving the stability and service life of the product. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0028] Figure 1 It is a perspective view of the uppermost and lowermost convex structures of the contact end face of the support body of the present application, and the first and last ends of each convex structure are provided with stepped sink structures.
[0029] Figure 2 It is a perspective view of the uppermost and lowermost convex structures of the contact end face of the present application, and the first and last ends of each convex structure are provided with stepped sink structures. Figure 1 It is a top view of the present application.
[0030] Figure 3 It is a perspective view of the uppermost and lowermost convex structures of the contact end face of the present application, and the first and last ends of each convex structure are provided with stepped sink structures.
[0031] Figure 4 It is a top view of the present application. Figure 3
[0032] It is a front view of the present application. Figure 5 Figure 3 It is a front view of the present application.
[0033] Figure 6 It is a perspective view of the uppermost and lowermost convex structures of the contact end face of the present application, and the first and last ends of each convex structure are provided with stepped sink structures.
[0034] Figure 7 It is a top view of the present application. Figure 6
[0035] It is a front view of the present application. Figure 8 Figure 6 It is a perspective view of the support and the compressor of the present application.
[0036] Figure 9
[0037] Figure 10 The support assembly position sectional view of the utility model.
[0038] Figure 11 The clamping part embedding position sectional view.
[0039] Figure 12 The limiting part and the stepped sink structure cooperation position sectional view.
[0040] In the figure: 1, support frame body;11, bearing hole;12, support arm;13, contact end face;14, through recess;15, convex structure;16, stepped sink structure;
[0041] 100, compressor shell;101, clamping part;102, limiting part;
[0042] A, channel structure. DETAILED DESCRIPTION
[0043] It should be noted that the embodiments and the features in the embodiments in the utility model can be combined with each other without conflict.The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.
[0044] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.The description of the at least one exemplary embodiment is actually only illustrative, not as any limitation on the utility model and its application or use.Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.
[0045] It should be noted that the terms used here are only for describing the specific embodiments, not intended to limit the exemplary embodiments according to the utility model.As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form, and in addition, it should be understood that when the terms "contain" and / or "include" are used in the specification, it means that there is a feature, step, operation, device, component and / or their combination.
[0046] The foregoing description, for purposes of explanation, sets forth specific values and arrangements of components and steps that are subject to many options. The intent is to be accurate in describing the principles and novel features of the application. Thus, although the application has been described with reference to specific embodiments thereof, it will be apparent to those of ordinary skill in the art that a number of changes can be made to the embodiments described without departing from the spirit and scope of the application. For example, the various features of the application can be combined in any combination, where possible. Accordingly, the scope of the application is to be construed as encompassing modifications and variations of the specific examples described herein, subject only to the conditions of the prior art.
[0047] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the protection scope of the present application: the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.
[0048] For the convenience of description, spatial relative terms such as "on", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the example term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.
[0049] In addition, it should be noted that the use of "first", "second" and the like words to limit parts, only for the convenience of distinguishing the corresponding parts, if there is no further declaration, the above words have no special meaning, therefore, it cannot be understood as a limitation on the protection scope of the present application.
[0050] AsFigures 1 to 8 As shown in the drawings, a circumferential rotation constraint type scroll compressor support, taking two through grooves 14 as an example, comprises a support frame body 1, a bearing hole 11 for accommodating a scroll compressor crankshaft is arranged in the middle of the support frame body 1, at least three radially outwardly extending support arms 12 are uniformly distributed on the circumferential side of the support frame body 1, a contact end face 13 for contacting the inner wall of the compressor shell is arranged at the end of each support arm 12, at least two mutually parallel through grooves 14 are machined on the contact end face 13 in the transverse direction, thereby separating the contact end face 13 into at least three convex structures 15;
[0051] At least one side end of the convex structure 15 is provided with a stepped sunken platform structure 16, the stepped sunken platform structure 16 is directly connected with the adjacent through groove 14, and the two form a continuous channel structure A with a stepped turn.
[0052] As shown in the drawings, the stepped sunken platform structure 16 is arranged at the end of each convex structure 15; Figures 1 to 2
[0053] As shown in the drawings, the stepped sunken platform structure 16 is staggered at the end of each convex structure 15; Figures 3 to 5
[0054] As shown in the drawings, the stepped sunken platform structure 16 is arranged at the end of each convex structure 15. Figures 6 to 8
[0055] Further, the number of support arms 12 is 3-6, which are uniformly distributed along the circumference of the support frame.
[0056] Further, the depth of the stepped sunken platform structure 16 is less than the depth of the through groove 14.
[0057] Further, the surface of the stepped sunken platform structure 16 is a plane or an inclined plane, and the height difference between the stepped sunken platform structure 16 and the adjacent convex structure 15 is used to adapt to the stamping deformation amount of the shell.
[0058] As shown in the drawings, a scroll compressor is provided with the above support in the compressor shell 100, the side wall of the compressor shell 100 is plastically deformed by a stamping process to form an inwardly convex stamping embedding part (including a clamping part 101 and a limiting part 102); Figure 9 Figure 10 The stamping embedding part comprises:
[0059] The stamping embedding part comprises:
[0060] a clamping portion 101 corresponding to the area of the through grooves 14 of the bracket, the material of the clamping portion 101 being embedded in the through grooves 14 and forming an interference fit with the side walls of the through grooves 14 and the side faces of the protruding structures 15 between the two through grooves 14, so as to clamp and fix the protruding structures 15;
[0061] a limiting portion 102 corresponding to the end area of the protruding structures 15, the material of the limiting portion being embedded in the stepped sink structure 16 at the end of the protruding structures 15 and being in contact with the surface and / or side wall of the stepped sink structure 16;
[0062] The clamping portion 101 and the limiting portion 102 jointly form multiple constraints on the axial movement and circumferential rotation of the bracket.
[0063] The assembly process of the utility model with the above technical solution is as follows:
[0064] First, the circumferential rotation constraint type scroll compressor bracket is centered with the bearing hole 11 of the support frame body 1 and is axially placed in the pre-set installation position inside the compressor shell 100.
[0065] Subsequently, the compressor shell 100 and the bracket are aligned and fixed, so as to ensure that the contact end faces 13 at the ends of the support arms 12 are tightly attached to the predetermined contact area of the inner wall of the shell.
[0066] Then, a special stamping equipment is used to apply an accurate stamping force from the outside of the compressor shell 100 to the area of the contact end faces 13 at the ends of the support arms 12. Under this pressure, the shell side wall locally plastically deforms and protrudes inward (forming the clamping portion 101 and the limiting portion 102).
[0067] During the stamping process, the shell material first flows into the through grooves 14 on the contact end faces 13, fills the groove space and tightly wraps the side walls and the protruding structures 15 therebetween, so as to form the clamping portion 101 which clamps and fixes the bracket from the radial and axial directions, as shown in Figure 11 .
[0068] At the same time, part of the material continues to flow and fills into the stepped sink structure 16 at the end of the protruding structure 15, forming a limiting portion 102 matching the shape thereof. The limiting portion 102 is in contact with the side and bottom or inclined surface of the stepped sink structure 16, constituting an effective mechanical stopper, as shown in Figure 12 .
[0069] Finally, after the stamping is completed, the shell material completely fills the continuous channel structure A formed by the through groove 14 and the stepped sink structure 16, thereby integrally forming the stamping embedded part (the clamping part 101 and the limiting part 102) with clamping and limiting functions at one time. The embedded part and the complex curved surface structure of the support are embedded with each other, multiple and reliable constraints on the axial movement and the circumferential rotation of the support are formed, and the entire assembly process is completed.
[0070] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A circumferential rotation constraint type scroll compressor support, comprising a support frame body (1) having a bearing hole (11) in the middle for accommodating a crankshaft of a scroll compressor, and at least three radially outwardly extending support arms (12) uniformly distributed on the circumference of the support frame body (1), and each of the support arms (12) has a contact end face (13) at the end thereof for contacting the inner wall of a compressor shell, characterized in that: at least two mutually parallel through grooves (14) are machined on the contact end face (13) in the transverse direction, thereby separating the contact end face (13) into at least three raised structures (15); at least one side end of at least one of the raised structures (15) is provided with a stepped sink structure (16), and the stepped sink structure (16) is directly connected with the adjacent through groove (14), so that the two form a continuous channel structure (A) with a stepped transition. The number of support arms (12) is 3-6, and they are uniformly distributed along the circumference of the support frame. The depth of the stepped sink structure (16) is less than the depth of the through groove (14).
2. The stent of claim 1, wherein: The surface of the stepped sink structure (16) is a plane or an inclined plane, and the height difference between it and the adjacent raised structure (15) is used to adapt to the stamping deformation amount of the shell.
3. The stent of claim 1, wherein: The support frame as claimed in any one of claims 1-4 is arranged in a compressor shell (100), and the side wall of the compressor shell (100) is plastically deformed by a stamping process to form an inwardly protruding stamping embedding part.
4. The stent of claim 1, wherein: The stamping embedding part comprises:
5. A scroll compressor characterized by, a clamping part (101) corresponding to the area of the through groove (14) of the support frame, the material of the clamping part (101) is embedded in the through groove (14), and forms an interference fit with the side wall of the through groove (14) and the side surface of the raised structure (15) between the two through grooves (14), so as to clamp and fix the raised structure (15); a limiting part (102) corresponding to the end area of the raised structure (15), the material of the limiting part is embedded in the stepped sink structure (16) at the end of the raised structure (15), and contacts the surface and / or side wall of the stepped sink structure (16); the clamping part (101) and the limiting part (102) jointly form multiple constraints on the axial movement and circumferential rotation of the support frame.