Disclosure of utility model
The utility model mainly aims to provide a bearing bracket, which aims to improve the welding reliability of the bearing bracket and a compressor shell and ensure the position degree of a bearing on the bracket.
In order to achieve the above object, the bearing bracket according to the present utility model includes:
A mounting portion for mounting a bearing;
The connecting part is connected to the periphery of the mounting part in an included angle, one end of the connecting part, which is away from the mounting part, is provided with a welding position for welding with the shell, and the welding position extends along the axial direction of the mounting part;
the connecting portion is provided with a dividing groove, and the dividing groove is located between the welding position and the mounting portion.
In an embodiment of the application, the dividing groove is disposed at a connection portion between the connection portion and the mounting portion.
In an embodiment of the application, the lower end of the welding position extends to be flush with or protrude from the lower surface of the mounting part along the axial direction of the mounting part.
In an embodiment of the application, the welding position is arranged in an arc shape away from the wall surface of the mounting part and is used for adapting to the inner wall surface of the shell.
In an embodiment of the present application, the connection portion is connected to the mounting portion perpendicularly, and the connection portion extends along an axial direction of the mounting portion.
In an embodiment of the application, a welding spot is arranged on a wall surface of the welding position, which is away from the mounting part, and the welding spot is positioned at the central part of the welding position.
In an embodiment of the application, the bearing support is of a unitary structure.
In an embodiment of the present application, the mounting portion includes:
The central supporting area is provided with a central mounting hole;
At least two support legs which are arranged at intervals on the periphery of the central support area and extend outwards from the central support area in a radial direction;
The connecting portion is arranged on the peripheral edge of the supporting leg, the welding position is located at one end, deviating from the central mounting hole, of the supporting leg, and the dividing groove is arranged at the connecting position of the supporting leg and the welding position.
In order to achieve the above object, the present application further provides a compressor, including a housing and the bearing bracket described above, wherein the bearing bracket is disposed in the housing, and the connection portion is welded and fixed with the housing through the welding position.
In order to achieve the above object, the present application also provides a refrigeration apparatus including the above compressor.
According to the technical scheme, in the bearing support, the mounting part is used for mounting the bearing, the connecting part is connected to the periphery of the mounting part in an included angle mode, one end of the connecting part, which is away from the mounting part, is provided with the welding position used for being welded and fixed with the shell, the welding position extends along the axial direction of the shell, and the dividing groove is arranged between the welding position and the mounting part and can divide the welding position and the mounting part, so that a gap between the welding position and the shell is uniform, when the welding position and the shell are welded, the welding flux between the welding position and the shell is uniform, meanwhile, the welding position cannot be influenced by the pulling stress of the mounting part, so that the shrinkage speed of the welding flux between the welding position and the shell is consistent, acting force between the shell and the welding flux is more uniform, the generation of cracks is avoided, meanwhile, the deformation influence of the welding on the bearing support can be reduced, the influence of bearing position on the bearing support can be reduced, and the assembly precision is improved.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present utility model), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
Meanwhile, the meaning of "and/or" and/or "appearing throughout the text is to include three schemes, taking" a and/or B "as an example, including a scheme, or B scheme, or a scheme that a and B satisfy simultaneously.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In the scroll compressor, a bearing bracket is usually welded and fixed with a shell of the compressor, but in the related art, gaps between parts, close to welding parts, of the bearing bracket and the shell are uneven, cooling speeds of a welded solution pool at different positions can be different, shrinkage of the solution pool at the different positions is easy to cause, cracks are easy to generate between the welding parts and the shell to influence connection reliability, and meanwhile uneven stress of the bearing bracket is also caused to deform to influence position accuracy of a bearing on the bearing bracket.
Therefore, the utility model provides the bearing bracket, and aims to ensure that the gap between the welding part and the shell is uniform by arranging the dividing groove on the part, close to the welding position, of the bearing bracket, thereby being beneficial to improving the quality of welding spots at the welding part, avoiding generating cracks, reducing the influence of welding on the position degree of a bearing on the bearing bracket and improving the assembly precision. It is understood that the bearing support is applied to a scroll compressor, the scroll compressor includes a housing, a movable scroll provided in the housing, a fixed scroll, an upper support assembly, a lower support assembly, a crankshaft and a motor, the upper support assembly may include an upper bearing support and an upper bearing, and the lower support assembly may include a lower bearing support and a lower bearing, wherein the upper bearing support and the lower bearing support may be welded to an upper portion and a lower portion in the housing, respectively, so that the upper bearing and the lower bearing support both ends of the crankshaft, respectively. When the compressor runs, the motor drives the crankshaft to rotate, and then drives the movable scroll to move relative to the fixed scroll so as to realize the function of compressing refrigerant gas. It should be noted that the bearing support provided by the utility model can be an upper bearing support or a lower bearing support. The specific structure of the bearing bracket will be described in the following by way of example.
As shown in fig. 1, the bearing support comprises a mounting part 1 and a connecting part 2, wherein the mounting part 1 is used for mounting a bearing, the connecting part 2 is connected to the periphery of the mounting part 1 in an included angle, one end of the connecting part 2, which is away from the mounting part 1, is provided with a welding position 2a used for being welded with a shell, the welding position 2a extends along the axial direction of the mounting part 1, the connecting part 2 is provided with a dividing groove 201, and the dividing groove 201 is positioned between the welding position 2a and the mounting part 1.
The bearing bracket is arranged in the shell, wherein the mounting part 1 is used for mounting a bearing, the bearing plays a role in supporting a crankshaft, the mounting part 1 is optionally provided with a central mounting hole 101 for assembling the bearing, the connecting part 2 is connected to the periphery of the mounting part 1 in an included angle manner, and the connecting part 2 is fixedly connected with the shell to play a role in fixing the bearing bracket with the shell. In this embodiment, the one end of connecting portion 2 facing away from installation department 1 has the welding position 2a that is used for with casing welded fastening, through set up division groove 201 on connecting portion 2, this division groove 201 is located between welding position 2a and installation department 1, can make the axial extension of welding position 2a along the casing, thereby make the clearance between welding position 2a and the casing even, when welding position 2a and the casing welding, because the clearance between welding position 2a and the casing is even, the solder between the two is even more with the area of contact of air when cooling, cooling rate is even more, simultaneously welding position 2a also can not receive the pulling stress influence of installation department 1, make the shrink speed of solder between welding position 2a and the casing more unanimous, so, the effort between casing and the solder is even more, can avoid the production of crackle.
In addition, the bearing is installed in the center mounting hole 101 of the mounting portion 1, and the connecting portion 2 is connected to the mounting portion 1, so that when the welding quality between the welding position 2a of the connecting portion 2 and the shell is improved, the deformation influence of welding on the bearing support can be reduced, the influence of the bearing position on the bearing support can be reduced, and the assembly precision is improved.
The connection portion 2 is connected to the periphery of the mounting portion 1 at an included angle, and it can be appreciated that the connection portion 2 and the mounting portion 1 may be connected at an acute angle, an obtuse angle, or vertically. One end of connecting portion 2 deviating from installation department 1 sets up welding position 2a, and optionally, this welding position 2a extends along the axial of casing, can play the effect of increase bearing support and casing cooperation area, reinforcing bearing support and casing's joint strength.
The connecting portion 2 is provided with a dividing groove 201, and the dividing groove 201 can divide the welding position 2a from the mounting portion 1, so that the welding position 2a can not be pulled by the stress of the mounting portion 1 when the welding position 2a is welded with the housing, and the welding quality is improved. It will be appreciated that the specific position of the dividing groove 201 may be determined according to the actual situation, for example, may be disposed at the connection portion of the connection portion 2 and the mounting portion 1, or may be disposed at a position on the connection portion 2 near the welding position 2a, etc., and the specific position is not limited herein. In practical applications, the shape and structure of the dividing groove 201 may be a rectangular groove, a circular groove, a square groove, or other shape groove structures, for example.
Alternatively, the connecting portion 2 and the mounting portion 1 may be an integrally formed structure or a separate structure. In this embodiment, in consideration of cost and difficulty in molding process, it is preferable that the connection portion 2 and the mounting portion 1 are integrally molded, and can be manufactured by press molding, thereby improving production efficiency.
In summary, in the bearing bracket according to the technical scheme of the utility model, the mounting part 1 is used for mounting a bearing, the connecting part 2 is connected to the periphery of the mounting part 1 in an included angle, one end of the connecting part 2, which is away from the mounting part 1, is provided with the welding position 2a used for being welded and fixed with the shell, and the dividing groove 201 is arranged on the connecting part 2, and is positioned between the welding position 2a and the mounting part 1, so that the welding position 2a extends along the axial direction of the shell, a gap between the welding position 2a and the shell is uniform, when the welding position 2a and the shell are welded, the cooling speed of the welding material between the welding position 2a and the shell is uniform, and meanwhile, the welding position 2a is not influenced by the pulling stress of the mounting part 1, so that the contraction speed of the welding material between the welding position 2a and the shell is consistent, thus the acting force between the shell and the welding material is more uniform, the generation of cracks is avoided, and meanwhile, the deformation influence of the bearing bracket can be reduced, and the bearing position on the bearing bracket can be further reduced, and the assembly precision is improved.
In an embodiment of the present application, as shown in fig. 1, a dividing groove 201 is provided at the connection portion of the connection portion 2 and the mounting portion 1.
It is to be understood that the installation position of the dividing groove 201 may be determined according to the actual situation, as long as the welding position 2a can be separated from the mounting portion 1. In this embodiment, the dividing groove 201 is disposed at the connection position between the connecting portion 2 and the mounting portion 1, so that on one hand, two structures with different extending directions can be separated, and the welding position 2a on the connecting portion 2 will not receive the pulling stress of the mounting portion 1 when being welded with the housing, and on the other hand, the area of the welding position 2a extending along the axial direction of the housing can be increased, so that a sufficient welding fit length is provided between the welding position 2a and the housing, and welding quality is ensured.
In addition, compared with the scheme of extending the welding position 2a upwards in the related art, the welding position 2a of the embodiment does not need to be extended upwards, does not occupy excessive space in the shell of the compressor, does not influence the installation of other components, and ensures that the structural layout in the compressor is more compact.
Further, the lower end of the welding position 2a extends to be flush with or protrude from the lower surface of the mounting portion 1 in the axial direction of the mounting portion 1.
By the arrangement, the matching area of the welding position 2a and the shell can be increased, so that the welding position 2a and the shell have enough welding matching length, and welding quality is ensured.
In an embodiment of the application, as shown in fig. 1, the welding position 2a is arranged in an arc shape away from the wall surface of the mounting part 1 for adapting to the inner wall surface of the housing.
It can be understood that the inner wall of casing is circular arc, through deviating from the wall of installation department 1 with welding position 2a and personally submitting the arcuation setting for the cambered surface shape looks adaptation of welding position 2a and casing inner wall can guarantee that the clearance between welding position 2a and the casing is even, makes the clearance around the solder joint unanimous, can further promote welding quality, promotes the joint strength of bearing bracket and casing.
By means of the design, the position degree of the bearing support and the bearing can be further improved, and the assembly precision is improved.
In an embodiment of the present application, as shown in fig. 1, the connection portion 2 is connected to the mounting portion 1 vertically, and the connection portion 2 extends along the axial direction of the mounting portion 1.
In this embodiment, the connecting portion 2 and the mounting portion 1 form a right-angle connection structure, and can further improve the structural strength of the bearing bracket compared with other connection structures such as obtuse angles and acute angles. By extending the connecting portion 2 in the axial direction of the mounting portion 1 so that the extending direction of the connecting portion 2 coincides with the axial direction of the housing, the extending direction of the welding position 2a coincides with the axial direction of the housing, so that the gap between the welding position 2a and the housing is uniform.
In one embodiment of the application, a welding spot is arranged on the wall surface of the welding position 2a, which faces away from the mounting part 1, and the welding spot is positioned at the central part of the welding position 2 a.
In this embodiment, a welding spot is disposed at the central position of the welding position 2a, so that the welding position of the welding position 2a and the casing is located at the center of the welding position 2a, so that the stress of the welding position 2a is more uniform, and the connection reliability of the bearing bracket and the casing can be improved.
Of course, in practical application, welding spots are not required to be arranged on the welding position 2a in advance, when the bearing bracket is assembled, after the bearing bracket is installed in the shell, the welding position 2a is aligned with a positioning groove on the shell, and then the shell and the welding position 2a are welded through the positioning groove.
In an embodiment of the present application, as shown in fig. 1, the mounting portion 1 includes a central supporting area 11 and at least two supporting legs 12, the central supporting area 11 is provided with a central mounting hole 101, the at least two supporting legs 12 are arranged at intervals on the periphery of the central supporting area 11 and extend radially outwards from the central supporting area 11, the connecting portion 2 is arranged at the periphery edge of the supporting legs 12, the welding position 2a is located at one end of the supporting legs 12 away from the central mounting hole 101, and the dividing groove 201 is arranged at the connection position of the supporting legs 12 and the welding position 2 a.
In this embodiment, the structure of the mounting portion 1 is illustrated, and the central supporting region 11 is provided with a central mounting hole 101 for mounting a bearing, so as to perform a limiting and positioning function on the bearing. At least two supporting legs 12 are arranged at intervals on the periphery of the central supporting area 11, the supporting legs 12 extend outwards from the central supporting area 11 in the radial direction, and the welding position 2a is located at one end, away from the central mounting hole 101, of the supporting legs 12 and is used for being welded and fixed with a shell of the compressor, so that the function of supporting and fixing the central supporting area 11 is achieved.
By providing the connection portion 2 on the outer peripheral edge of the leg 12, the connection area between the connection portion 2 and the mounting portion 1 can be increased, and the connection strength between the connection portion 2 and the mounting portion 1 can be improved. The division groove 201 is arranged at the connection part of the supporting leg 12 and the welding position 2a, so that the division groove 201 does not influence the connection strength between the connecting part 2 and the mounting part 1, the welding position 2a can be reliably fixed with the mounting part 1 through the connecting part 2, and the assembly reliability of the bearing bracket and the housing can be ensured when the welding position 2a is fixedly welded with the housing.
As an example, at least two landing legs 12 are uniformly arranged around the periphery of the installation part 1 at intervals, and the installation part 1 is supported by arranging at least two landing legs 12, so that the stress of the installation part 1 is more balanced, and the support strength is higher. Alternatively, the number of legs 12 may be 2, 3, 4, or the like.
The utility model also provides a compressor, which comprises a shell and a bearing bracket, wherein the specific structure of the bearing bracket refers to the embodiment, and as the compressor adopts all the technical schemes of all the embodiments, the compressor at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted. Wherein, the bearing bracket is arranged in the shell, and the connecting part 2 is welded and fixed with the shell through a welding position 2 a.
The utility model also provides a refrigeration device which comprises a compressor, wherein the specific structure of the compressor refers to the embodiment, and as the refrigeration device adopts all the technical schemes of all the embodiments, the refrigeration device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein. Alternatively, the refrigeration device may be a refrigerator, an air conditioner, a cold chain car, or the like.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.