Bearing support, compressor and refrigeration equipment

Abstract

The utility model discloses a bearing support, a compressor and refrigeration equipment, and relates to the technical field of refrigeration. Wherein the bearing bracket comprises a mounting part and a connecting part, and the mounting part is used for mounting a bearing; the connecting part is connected to the periphery of the mounting part at an included angle; a welding position welded with the shell is arranged at one end, deviating from the mounting part, of the connecting part; the connecting part is provided with a dividing groove, and the dividing groove is located between the welding position and the mounting part so that the welding position can extend in the axial direction of the mounting part. According to the technical scheme, the welding reliability of the bearing support and the compressor shell can be improved, and meanwhile the position degree of the bearing on the support is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a bearing bracket, a compressor and a refrigeration device. Background Art

[0002] A scroll compressor typically uses a motor to rotate the crankshaft, which in turn drives the compressor pump to compress the refrigerant gas. The compressor pump consists of an orbiting scroll, a fixed scroll, an upper support assembly, a lower support assembly, and a crankshaft. The upper and lower support assemblies are welded to the upper and lower portions of the housing, respectively, to support both ends of the crankshaft.

[0003] In the scroll compressor of the related art, the gap between the part of the bracket near the welding point and the shell is uneven, which can easily cause cracks between the welding point and the shell, affecting the connection reliability, and can also easily affect the position of the bearing on the bracket. Utility Model Content

[0004] The main purpose of the utility model is to provide a bearing bracket, aiming to improve the welding reliability of the bearing bracket and the compressor housing, while ensuring the position accuracy of the bearing on the bracket.

[0005] To achieve the above objectives, the bearing bracket proposed in the present invention includes:

[0006] A mounting portion, used for mounting a bearing;

[0007] A connecting portion connected to the periphery of the mounting portion at an angle, wherein one end of the connecting portion facing away from the mounting portion has a welding position for welding to the shell, and the welding position extends along the axial direction of the mounting portion;

[0008] The connecting portion is provided with a dividing groove, and the dividing groove is located between the welding position and the mounting portion.

[0009] In one embodiment of the present application, the dividing groove is provided at the connection between the connecting portion and the mounting portion.

[0010] In one embodiment of the present application, the lower end of the welding position extends along the axial direction of the mounting portion to be flush with or protrudes from the lower surface of the mounting portion.

[0011] In one embodiment of the present application, the welding position is arranged in an arc shape away from the wall surface of the mounting portion so as to be adapted to the inner wall surface of the shell.

[0012] In one embodiment of the present application, the connecting portion is vertically connected to the mounting portion, and the connecting portion extends along the axial direction of the mounting portion.

[0013] In one embodiment of the present application, a welding spot is provided on a wall surface of the welding position away from the mounting portion, and the welding spot is located at a central portion of the welding position.

[0014] In one embodiment of the present application, the bearing bracket is an integrated structure.

[0015] In one embodiment of the present application, the mounting portion includes:

[0016] The center support area is provided with a center mounting hole;

[0017] at least two legs spaced apart and arranged on the periphery of the central support area and extending radially outward from the central support area;

[0018] The connecting portion is arranged at the outer peripheral edge of the supporting leg, the welding position is located at the end of the supporting leg away from the central mounting hole, and the dividing groove is arranged at the connection between the supporting leg and the welding position.

[0019] To achieve the above-mentioned purpose, the present application also provides a compressor, comprising a shell and the above-mentioned bearing bracket, wherein the bearing bracket is arranged in the shell, and the connecting portion is welded and fixed to the shell through the welding position.

[0020] To achieve the above objectives, the present application also provides a refrigeration device, including the above compressor.

[0021] In the bearing bracket of the utility model technical solution, the mounting portion is used to install the bearing, the connecting portion is connected to the periphery of the mounting portion at an angle, and the end of the connecting portion away from the mounting portion has a welding position for welding and fixing with the shell, and the welding position extends along the axial direction of the shell. By providing a dividing groove on the connecting portion, the dividing groove is located between the welding position and the mounting portion, and the welding position and the mounting portion can be divided, so that the gap between the welding position and the shell is uniform. When the welding position and the shell are welded, the cooling rate of the solder between the two is uniform. At the same time, the welding position will not be affected by the tensile stress of the mounting portion, so that the shrinkage rate of the solder between the welding position and the shell is consistent. In this way, the force between the shell and the solder can be made more uniform, avoiding the generation of cracks; at the same time, it can also reduce the deformation effect of welding on the bearing bracket, thereby reducing the effect on the bearing position on the bearing bracket, and improving the assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a structural schematic diagram of an embodiment of a bearing bracket of the present utility model.

[0024] Description of Figure Numbers:

[0025] Label name Label name 1 Installation Department 2 Connection 11 Central support area 2a Welding position 12 outriggers 201 Split slot 101 Center mounting hole

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or an option in which both A and B are satisfied.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] In a scroll compressor, the bearing bracket is usually welded to the compressor casing. However, in related technologies, the gap between the bearing bracket near the welding point and the casing is uneven. After welding, the cooling rate of the molten pool at different positions may be different, which can easily lead to uneven shrinkage of the molten pool at different positions. Cracks are easily generated between the welding point and the casing, affecting the connection reliability; at the same time, it will also cause the bearing bracket to be deformed due to uneven force, affecting the position accuracy of the bearing on the bearing bracket.

[0032] To this end, the present invention proposes a bearing bracket that aims to provide a dividing groove on the portion of the bearing bracket near the welding position to make the gap between the welding portion and the housing uniform, which helps to improve the quality of the weld point at the weld and avoid cracks. At the same time, it can reduce the impact of welding on the position of the bearing on the bearing bracket and improve assembly accuracy. It can be understood that the bearing bracket is used in a scroll compressor, which includes a housing, an orbiting scroll, a fixed scroll, an upper bracket assembly, a lower bracket assembly, a crankshaft and a motor. The upper bracket assembly may include an upper bearing bracket and an upper bearing, and the lower bracket assembly may include a lower bearing bracket and a lower bearing. The upper bearing bracket and the lower bearing bracket can be welded to the upper and lower portions of the housing, respectively, so that the upper bearing and the lower bearing respectively support the two ends of the crankshaft. During operation, the motor drives the crankshaft to rotate, thereby driving the orbiting scroll to move relative to the fixed scroll to achieve the function of refrigerant gas compression. It should be noted that the bearing bracket provided in this application can be an upper bearing bracket or a lower bearing bracket. The specific structure of the bearing bracket will be described below in the form of an embodiment.

[0033] like Figure 1 As shown, the bearing bracket includes a mounting portion 1 and a connecting portion 2; the mounting portion 1 is used to mount the bearing; the connecting portion 2 is connected to the periphery of the mounting portion 1 at an angle, and the end of the connecting portion 2 facing away from the mounting portion 1 has a welding position 2a for welding to the shell, and the welding position 2a extends along the axial direction of the mounting portion 1; the connecting portion 2 is provided with a dividing groove 201, and the dividing groove 201 is located between the welding position 2a and the mounting portion 1.

[0034] The bearing bracket is mounted in the housing, wherein the mounting portion 1 is used to mount the bearing, which supports the crankshaft. Optionally, the mounting portion 1 is provided with a central mounting hole 101 for assembling the bearing. The connecting portion 2 is connected to the outer periphery of the mounting portion 1 at an angle, and the connecting portion 2 is fixedly connected to the housing to secure the bearing bracket to the housing. In this embodiment, the end of the connecting portion 2 facing away from the mounting portion 1 has a welding position 2a for welding to the housing. By providing a dividing groove 201 on the connecting portion 2, the dividing groove 201 is located between the welding position 2a and the mounting portion 1, so that the welding position 2a can extend along the axial direction of the housing, thereby making the gap between the welding position 2a and the housing uniform. When the welding position 2a is welded to the housing, due to the uniform gap between the welding position 2a and the housing, the contact area between the solder and the air is more uniform during cooling, and the cooling rate is more uniform. At the same time, the welding position 2a is not affected by the tensile stress of the mounting portion 1, so that the shrinkage rate of the solder between the welding position 2a and the housing is more consistent. In this way, the force between the housing and the solder is more uniform, which can prevent the occurrence of cracks.

[0035] In addition, the bearing is installed in the central mounting hole 101 of the mounting part 1, and the connecting part 2 is connected to the mounting part 1. Therefore, when the welding quality between the welding position 2a of the connecting part 2 and the shell is improved, the deformation effect of the welding on the bearing bracket can be reduced, and then the influence on the bearing position on the bearing bracket can be reduced, thereby improving the assembly accuracy.

[0036] The connecting portion 2 is connected to the periphery of the mounting portion 1 at an angle. It is understood that the connecting portion 2 and the mounting portion 1 can be connected at an acute angle, an obtuse angle, or perpendicularly. A welding position 2a is provided at the end of the connecting portion 2 facing away from the mounting portion 1. Optionally, the welding position 2a extends axially along the housing, which can increase the mating area between the bearing bracket and the housing and enhance the connection strength between the bearing bracket and the housing.

[0037] The connecting portion 2 is provided with a dividing groove 201, which can separate the welding position 2a from the mounting portion 1. This ensures that when the welding position 2a is welded to the housing, the welding position 2a is not subjected to the stress and tension of the mounting portion 1, thereby improving the welding quality. It is understood that the specific location of the dividing groove 201 can be determined according to actual conditions, for example, it can be set at the junction of the connecting portion 2 and the mounting portion 1, or it can be set at a position on the connecting portion 2 near the welding position 2a, etc. The specific location is not limited here. In actual application, the shape and structure of the dividing groove 201 can also be determined according to actual conditions, for example, it can be a rectangular groove, a circular groove, a square groove, or other groove structures.

[0038] Optionally, the connecting portion 2 and the mounting portion 1 may be an integrally formed structure or a separate structure. In this embodiment, considering the cost and difficulty of the molding process, the connecting portion 2 and the mounting portion 1 are preferably an integrally formed structure, which can be manufactured by stamping to improve production efficiency.

[0039] In summary, in the bearing bracket of the technical solution of the present invention, the mounting portion 1 is used to mount the bearing, the connecting portion 2 is connected to the periphery of the mounting portion 1 at an angle, and the end of the connecting portion 2 facing away from the mounting portion 1 has a welding position 2a for welding and fixing with the shell. By providing a dividing groove 201 on the connecting portion 2, the dividing groove 201 is located between the welding position 2a and the mounting portion 1, so that the welding position 2a can extend along the axial direction of the shell, so that the gap between the welding position 2a and the shell is uniform. When the welding position 2a is welded to the shell, the cooling rate of the solder between the two is uniform. At the same time, the welding position 2a will not be affected by the tensile stress of the mounting portion 1, so that the shrinkage rate of the solder between the welding position 2a and the shell is consistent. In this way, the force between the shell and the solder can be made more uniform, avoiding the generation of cracks; at the same time, it can also reduce the deformation effect of welding on the bearing bracket, thereby reducing the effect on the bearing position on the bearing bracket, and improving the assembly accuracy.

[0040] In one embodiment of the present application, Figure 1 The dividing groove 201 is provided at the connection between the connecting portion 2 and the mounting portion 1 .

[0041] It is understood that the location of the dividing groove 201 can be determined according to actual circumstances, as long as it can separate the welding position 2a from the mounting portion 1. In this embodiment, by providing the dividing groove 201 at the junction of the connecting portion 2 and the mounting portion 1, on the one hand, the two structures extending in different directions can be separated, so that the welding position 2a on the connecting portion 2 is not subjected to the tensile stress of the mounting portion 1 when welded to the shell; on the other hand, the area of ​​the welding position 2a extending along the axial direction of the shell can be increased, so that there is a sufficient welding fitting length between the welding position 2a and the shell, thereby ensuring welding quality.

[0042] In addition, compared with the solution of extending the welding position 2a upward in the related art, the welding position 2a of this embodiment does not need to be extended upward, will not occupy too much space in the compressor casing, will not affect the installation of other components, and makes the internal structural layout of the compressor more compact.

[0043] Furthermore, the lower end of the welding position 2 a extends along the axial direction of the mounting portion 1 to be flush with or protrudes from the lower surface of the mounting portion 1 .

[0044] Such an arrangement can increase the matching area between the welding position 2a and the shell, so that there is a sufficient welding matching length between the welding position 2a and the shell, thereby ensuring the welding quality.

[0045] In one embodiment of the present application, Figure 1 The welding position 2a is arranged in an arc shape away from the wall surface of the mounting portion 1 so as to be adapted to the inner wall surface of the shell.

[0046] It can be understood that the inner wall surface of the shell is in an arc shape. By setting the welding position 2a in an arc shape away from the wall surface of the mounting portion 1, the arc shape of the welding position 2a is adapted to the arc shape of the inner wall surface of the shell, which can ensure that the gap between the welding position 2a and the shell is uniform, and the gap around the welding point is consistent, which can further improve the welding quality and the connection strength between the bearing bracket and the shell.

[0047] Such a design can further improve the positioning of the bearing bracket and the bearing, and enhance the assembly accuracy.

[0048] In one embodiment of the present application, Figure 1 The connecting portion 2 is vertically connected to the mounting portion 1 , and the connecting portion 2 extends along the axial direction of the mounting portion 1 .

[0049] In this embodiment, the connection portion 2 forms a right-angle connection with the mounting portion 1. Compared to other connections such as obtuse and acute angles, this further enhances the structural strength of the bearing bracket. By extending the connection portion 2 axially along the mounting portion 1, the extension direction of the connection portion 2 aligns with the axial direction of the housing. This aligns the extension direction of the welding position 2a with the axial direction of the housing, resulting in a uniform gap between the welding position 2a and the housing.

[0050] In one embodiment of the present application, a welding spot is provided on the wall surface of the welding position 2 a away from the mounting portion 1 , and the welding spot is located at the center of the welding position 2 a .

[0051] In this embodiment, a welding point is set at the center of the welding position 2a so that the welding position 2a and the shell are located at the center of the welding position 2a, so that the force on the welding position 2a is more uniform, which can improve the connection reliability between the bearing bracket and the shell.

[0052] Of course, in actual application, it is also possible not to set the welding point on the welding position 2a in advance. During assembly, the bearing bracket can be installed in the shell so that the welding position 2a is aligned with the positioning groove on the shell, and then the shell and the welding position 2a are welded through the positioning groove.

[0053] In one embodiment of the present application, Figure 1The mounting portion 1 includes a central supporting area 11 and at least two legs 12, the central supporting area 11 is provided with a central mounting hole 101; at least two legs 12 are arranged at intervals on the periphery of the central supporting area 11 and extend radially outward from the central supporting area 11; the connecting portion 2 is provided on the outer peripheral edge of the leg 12, the welding position 2a is located at the end of the leg 12 away from the central mounting hole 101, and the dividing groove 201 is provided at the connection between the leg 12 and the welding position 2a.

[0054] This embodiment illustrates the structure of the mounting portion 1. A central mounting hole 101 is provided in the central support region 11 for mounting a bearing and providing a positional limit for the bearing. At least two legs 12 are spaced apart around the periphery of the central support region 11. Legs 12 extend radially outward from the central support region 11. Welding positions 2a are located at the ends of the legs 12 facing away from the central mounting hole 101, allowing them to be welded to the compressor casing, thereby supporting and securing the central support region 11.

[0055] By providing the connection portion 2 at the outer peripheral edge of the leg 12, the connection area between the connection portion 2 and the mounting portion 1 can be increased, thereby improving the connection strength between the connection portion 2 and the mounting portion 1. The dividing groove 201 is provided at the connection between the leg 12 and the welding position 2a, so that the dividing groove 201 does not affect the connection strength between the connection portion 2 and the mounting portion 1. The welding position 2a can be reliably fixed to the mounting portion 1 through the connection portion 2. Therefore, when the bearing bracket is welded to the housing via the welding position 2a, the assembly reliability of the bearing bracket and the housing can be guaranteed.

[0056] As an example, at least two legs 12 are evenly spaced around the periphery of the mounting portion 1. By providing at least two legs 12 to support the mounting portion 1, the force applied to the mounting portion 1 is more balanced and the support strength is higher. Optionally, the number of legs 12 can be 2, 3, or 4, etc.

[0057] The present invention also provides a compressor comprising a housing and a bearing bracket. The specific structure of the bearing bracket is similar to that of the aforementioned embodiments. Since the present compressor utilizes all of the technical solutions of all of the aforementioned embodiments, it at least possesses all of the beneficial effects of the technical solutions of the aforementioned embodiments, and therefore, no further details are given here. The bearing bracket is disposed within the housing, and a connecting portion 2 is welded to the housing via a welding position 2a.

[0058] The present invention also provides a refrigeration device including a compressor. The specific structure of the compressor is as described above. Since the present refrigeration device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. Optionally, the refrigeration device can be a refrigerator, an air conditioner, a cold chain vehicle, etc.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A bearing bracket, characterized in that: Applied to a compressor, the compressor has a housing, and the bearing bracket is used to be installed in the housing; the bearing bracket includes: A mounting portion for mounting a bearing; and A connecting portion connected to the periphery of the mounting portion at an angle, wherein one end of the connecting portion facing away from the mounting portion has a welding position for welding to the shell, and the welding position extends along the axial direction of the mounting portion; The connecting portion is provided with a dividing groove, and the dividing groove is located between the welding position and the mounting portion.

2. The bearing bracket according to claim 1, wherein: The dividing groove is provided at the connection between the connecting portion and the mounting portion.

3. The bearing bracket according to claim 2, characterized in that: The lower end of the welding position extends along the axial direction of the mounting portion until it is flush with or protrudes from the lower surface of the mounting portion.

4. The bearing bracket according to claim 1, wherein: The welding position is arranged in an arc shape away from the wall surface of the mounting portion so as to be adapted to the inner wall surface of the shell.

5. The bearing bracket according to claim 1, wherein: The connecting portion is vertically connected to the mounting portion, and the connecting portion extends along the axial direction of the mounting portion.

6. The bearing support according to any one of claims 1 to 5, characterized in that: A welding spot is provided on a wall surface of the welding position away from the mounting portion, and the welding spot is located at the center of the welding position.

7. The bearing support according to any one of claims 1 to 5, characterized in that: The bearing bracket is an integrated structure.

8. The bearing support according to any one of claims 1 to 5, characterized in that: The mounting portion includes: The center support area is provided with a center mounting hole; at least two legs spaced apart and arranged on the periphery of the central support area and extending radially outward from the central support area; The connecting portion is arranged at the outer peripheral edge of the supporting leg, the welding position is located at the end of the supporting leg away from the central mounting hole, and the dividing groove is arranged at the connection between the supporting leg and the welding position.

9. A compressor, characterized in that: It comprises a shell and a bearing bracket according to any one of claims 1 to 8, wherein the bearing bracket is arranged in the shell, and the connecting portion is welded and fixed to the shell through the welding position.

10. A refrigeration device, characterized in that: Comprising the compressor of claim 9.

Images