WO2020199583A1 - 压缩机 - Google Patents

压缩机 Download PDF

Info

Publication number
WO2020199583A1
WO2020199583A1 PCT/CN2019/115923 CN2019115923W WO2020199583A1 WO 2020199583 A1 WO2020199583 A1 WO 2020199583A1 CN 2019115923 W CN2019115923 W CN 2019115923W WO 2020199583 A1 WO2020199583 A1 WO 2020199583A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
shaped
bottom bearing
welding
side wall
Prior art date
Application number
PCT/CN2019/115923
Other languages
English (en)
French (fr)
Inventor
束宏飞
郭伟平
Original Assignee
艾默生环境优化技术(苏州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 艾默生环境优化技术(苏州)有限公司 filed Critical 艾默生环境优化技术(苏州)有限公司
Publication of WO2020199583A1 publication Critical patent/WO2020199583A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00

Definitions

  • the present disclosure relates to a compressor, and in particular, to a compressor with an improved bottom bearing support bracket of the compressor.
  • Compressors can be used in, for example, refrigeration systems, air conditioning systems, and heat pump systems.
  • the compressor includes a housing and the following components arranged in the housing: a compression mechanism for compressing a working fluid (such as a refrigerant); a motor including an output shaft for driving the compression mechanism to perform a compression operation
  • a working fluid such as a refrigerant
  • the bottom bearing bracket is usually fixed to the housing by spot welding, and is coupled to the output shaft to provide support for the output shaft.
  • the output shaft of the motor rotates at a high speed to drive the compression mechanism to perform a compression operation
  • the bottom bearing housing bracket provides support for the output shaft to keep the output shaft rotating stably.
  • the radial load generated by the rotation of the output shaft is transmitted to the bottom bearing bracket, and the radial load is then transferred to and acts on the welding point between the bottom bearing bracket and the housing.
  • the compressor works longer
  • the cyclical change of the radial load caused by the cyclical change of the output shaft speed makes the welding point prone to fatigue fracture failure.
  • the present disclosure provides a compressor that improves the bottom bearing bracket support of the compressor so as to strengthen the welding strength between the bottom bearing bracket support and the casing.
  • a housing is provided;
  • a compression mechanism the compression mechanism being adapted to compress a working fluid
  • a motor including an output shaft for driving the compression mechanism to perform a compression operation
  • a bottom bearing assembly the bottom bearing assembly provides support for the output shaft and includes a bottom bearing seat bracket,
  • the bottom bearing support bracket is provided with a joint part, and a strip-shaped welding part is formed between the joint part and the housing and is welded and joined by the strip-shaped welding part.
  • the housing includes a cylindrical side wall portion and a bottom cover, and the joint is welded to the cylindrical side wall portion and/or the bottom cover.
  • the joint is an annular joint extending along the entire outer periphery of the bottom bearing bracket.
  • the annular joint is in the form of a flange extending in the axial direction of the bottom bearing bracket, and the strip-shaped weld is formed on the cylindrical side of the annular joint.
  • the wall part and/or the side of the bottom cover is formed on the cylindrical side of the annular joint.
  • the strip-shaped welding part is a single annular welding part, and the single annular welding part is formed between the annular joint part, the cylindrical side wall portion and the bottom cover.
  • the single annular welding part is welded and joined together.
  • the manufacturing steps can be simplified, avoiding, for example, connecting the ring-shaped joint portion and the bottom cover
  • the cylindrical side wall portion and the bottom cover and the cylindrical side wall portion are respectively welded and joined to reduce manufacturing costs.
  • the joint portion includes at least two arc-shaped joint portions spaced apart along the outer periphery of the bottom bearing housing bracket.
  • the at least two arc-shaped joints protrude outward in the radial direction of the bottom bearing housing bracket or extend and protrude in the axial direction of the bottom bearing housing bracket, the at least The joint surfaces of the two arc-shaped joint portions welded to the cylindrical side wall portion and/or the bottom cover have arc-shaped surfaces extending along the outer periphery.
  • the cylindrical side wall portion and/or the bottom cover includes at least two welding gaps corresponding to the at least two arc-shaped joints one by one, and the arc-shaped joints
  • the strip-shaped welding part is formed between the welding gap and the welding gap.
  • the cylindrical side wall portion and/or the bottom cover includes a positioning through hole, and before the joint part and the housing are welded and joined through the strip-shaped welding part, A pre-positioned welding point is formed in an area of the joint portion corresponding to the positioning through hole, thereby performing welding between the joint portion and the cylindrical side wall portion and/or the bottom cover.
  • the bottom bearing assembly includes a shaft mounting sleeve, the shaft mounting sleeve is fixed to the center through hole of the bottom bearing support bracket by welding, threaded connection or interference connection, and The drive shaft is supported by passing through the shaft mounting sleeve and the center through hole of the bottom bearing bracket.
  • the bottom bearing support bracket is made by stamping or cutting with a sheet metal structure.
  • the compressor of the present disclosure brings at least the following beneficial technical effects: the compressor of the present disclosure can significantly improve the welding strength between the bottom bearing support bracket and the housing, and avoid stress concentration at the welding position. Therefore, the manufacturing steps of the compressor can be simplified, and the compressor of the present disclosure has a simple structure, is easy to process and manufacture, and has high cost-effectiveness.
  • Figure 1a shows a longitudinal sectional perspective view of a prior art compressor.
  • Fig. 1b shows a partial perspective view of the prior art compressor in Fig. 1a, in which a bottom bearing support bracket is shown.
  • Fig. 1c shows a partial cut-away perspective view of the prior art compressor in Fig. 1a, in which a partial enlarged view of the bottom bearing support bracket is shown.
  • Figure 2a shows a partial longitudinal sectional perspective view of a compressor according to a preferred embodiment of the present disclosure.
  • Fig. 2b shows a partial enlarged view of the bottom bearing support bracket of the compressor in Fig. 2a.
  • Fig. 3 shows another partial longitudinal sectional perspective view of the compressor in Fig. 2a.
  • Fig. 4 shows a partial perspective view of the compressor in Fig. 2a.
  • FIGS. 1a-4 The preferred embodiments of the present disclosure will now be described in detail with reference to FIGS. 1a-4.
  • the following description is merely exemplary in nature and is not intended to limit the present disclosure and its applications or uses.
  • a scroll compressor (hereinafter also referred to as a "compressor") is adopted as an example of the compressor of the present disclosure in the following exemplary embodiments, and the scroll compressor is exemplarily shown as a vertical compressor.
  • Type scroll compressor the compressor according to the present disclosure is not limited to this type, but may be any other type of compressor.
  • FIGS. 1a to 1c show prior art scroll compressors. First, the general structure of the prior art scroll compressor will be briefly described with reference to FIGS. 1a to 1c.
  • the scroll compressor P1 may include: a substantially cylindrical housing P30; an electric motor (not shown in the figure); an output shaft 10 of the motor; a lower part of the housing P30 is connected to the output shaft P10
  • the bottom bearing bracket P20 that provides support for the output shaft P10
  • the main bearing bracket 18 that is connected to the output shaft P10 and provides support for the output shaft P10 at the upper part of the housing P30; and is arranged above the main bearing seat 18 and is operable
  • a scroll compression mechanism (not shown in the figure) coupled to the output shaft P10, wherein the scroll compression mechanism includes a movable scroll and a fixed scroll and is configured to be adapted to be compressed under the drive of the output shaft P10 Working fluid (e.g. refrigerant).
  • Working fluid e.g. refrigerant
  • the housing P30 includes a cylindrical side wall part P301, a bottom cover, and a top cover (not shown in the figure).
  • the bottom bearing bracket P20 is welded to the cylindrical side wall part P301
  • the bottom cover is welded to the cylindrical side wall part P301, so as to realize the closure of the housing P30.
  • the bottom bearing support bracket P20 includes an integrally molded shaft mounting sleeve P204 and four joint parts P202 (also called "legs").
  • the shaft mounting sleeve P204 receives the output shaft P10 and carries the output shaft P10. As shown in the cross-sectional view shown in Fig.
  • the joint P202 is hollow inside, and a welding core Pc is inserted in the hollow part.
  • the four welding cores Pc and the cylindrical side wall part P301 are spot welded.
  • the joint P202 is welded to the cylindrical side wall portion P301, thereby fixing the bottom bearing bracket P20 to the housing P30.
  • the welding core Pc adopts a material that is more favorable to the welding bonding strength than the joint P202, for example, a material that is easier to fuse with solder.
  • the welding joint area of this spot welding configuration is too small.
  • the four welding points shown in the figure bear all the radial load.
  • the present disclosure aims to provide a compressor that improves the bottom bearing bracket support of the compressor so as to strengthen the welding strength between the bottom bearing bracket support and the housing.
  • the present disclosure improves the configuration of the bottom bearing support bracket to realize the welding connection between the bottom bearing support bracket and the housing through a strip-shaped welding part.
  • FIG. 2a shows a partial longitudinal sectional perspective view of the scroll compressor 1 according to a preferred embodiment of the present disclosure.
  • the scroll compressor 1 includes: a substantially cylindrical housing 30, which includes a cylindrical side wall portion 301, a bottom cover 303, and a top cover (not shown in the figure); an electric motor ( Figure Not shown in); the output shaft 10 of the motor; the lower part of the housing 30 is connected to the output shaft 10 and provides a bottom bearing assembly for supporting the output shaft 10.
  • the bottom bearing assembly includes a bottom bearing bracket 20 and a bottom bearing The shaft mount sleeve 204 at the center through hole of the seat bracket 20.
  • the bottom bearing bracket 20 has an inverted "U"-shaped cross-section as a whole, wherein the bottom bearing bracket 20 includes a joint 202, which extends along the entire bottom bearing bracket 20
  • the outer periphery extends and protrudes in the direction of the output shaft 10 to form an annular flange, and the outer side wall of the annular flange faces the housing 30 for welding.
  • the outer side wall of the annular flange abuts against the cylindrical side wall portion 301 and the bottom cover 303 of the housing 30, and simultaneously with the cylindrical side wall portion 301 and the bottom cover 303.
  • a ring-shaped welded portion L is formed by welding, that is, the ring-shaped flange, the cylindrical side wall portion 301, and the bottom cover 303 are welded to the ring-shaped flange, the cylindrical side wall portion 301 and the bottom cover 303 only by one-time welding and only through this ring-shaped weld At the same time, it is not necessary to perform two welding steps of welding the joint 202 with the cylindrical side wall portion 301 and welding the cylindrical side wall portion 301 with the bottom cover 303 separately as in the prior art described above. This simplifies the manufacturing process and saves manufacturing costs.
  • the joint 202 of the bottom bearing support bracket 20 is welded to the housing 30 to form an annular welding portion, the radial load borne by the bottom bearing support bracket 20 is evenly distributed across the entire ring shape of the outer periphery of the bottom bearing support bracket 20 On the welding part L, so as to avoid the stress concentration at a welding point, thereby significantly reducing the risk of fracture and failure of the welding part due to fatigue load, and greatly extending the service life.
  • the bottom bearing bracket 20 and its joint 202 have Compared with the simpler configuration of the prior art, it is convenient to be formed by machining, for example, it can be formed by stamping of sheet metal structure or other machining methods, instead of using molding. This is also conducive to manufacturing flexibility and cost savings.
  • the shaft mounting sleeve 204 can also be made into a separate component by machining and assembled with the bottom bearing bracket 20 through welding, screw connection or interference connection, so that It is convenient to flexibly replace the shaft installation sleeve 204 when the shaft installation sleeve 204 is damaged or fails, without the need to replace the bottom bearing assembly as a whole. This also greatly improves manufacturing flexibility and contributes to cost savings.
  • FIGS. 3 and 4 four positioning through holes O (only two are shown in the figure) are provided in the side wall of the cylindrical side wall portion 301 opposite to the joint 202.
  • the joint 202 is pre-welded and positioned to the cylindrical side wall part 301 and the bottom cover 303 at the four positioning through holes O.
  • the number of positioning through holes O may be any number according to actual applications. And it can also be arranged on the bottom cover 303 or on both the cylindrical side wall portion 301 and the bottom cover 303. There is no restriction on this, as long as the bottom bearing bracket 20 can be easily positioned.
  • the joint 202 of the bottom bearing bracket 20 is not limited to the above-mentioned annular flange-like configuration, but is configured to follow the bottom bearing bracket 20 At least two arc-shaped joints are spaced apart on the outer periphery, preferably 4 evenly distributed arc-shaped joints.
  • the arc-shaped joint portion may be a part that is flush with the outer periphery of the bottom bearing support bracket 20, or it may be an arc-shaped flange protruding perpendicular to the surface of the bottom bearing support bracket 20 as in the above preferred embodiment, or It may be an arc-shaped "teeth" that protrudes radially outwards of the bottom bearing support bracket 20, or a boss portion that protrudes perpendicular to the surface of the bottom bearing support bracket 20 and protrudes radially outward at the same time, And so on, as long as it can be joined with the housing 30 through a strip weld.
  • the area corresponding to each of the arc-shaped joints on the housing 30 is provided with welding gaps, preferably 4 corresponding welding gaps, so as to facilitate the removal from the housing.
  • the arc-shaped joint is welded to the outside of the body 30.
  • a positioning through hole O may be provided on the housing 30 to perform spot welding on the arc-shaped joint portion at a predetermined position.
  • the arc-shaped joint may be welded to the cylindrical side wall portion 301 or the bottom cover 303, or It is welded to the cylindrical side wall part 301 and the bottom cover 303 at the same time, that is, the welding gap may be provided on the cylindrical side wall part 301 or the bottom cover 303, or on both.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

一种压缩机(1)，压缩机(1)包括：壳体(30)；压缩机构，压缩机构适于压缩工作流体；马达，马达包括用于驱动压缩机构实施压缩操作的输出轴(10)；底轴承组件，底轴承组件为输出轴(10)提供支承并且包括底轴承座支架(20)，底轴承座支架(20)设置有接合部(202)，接合部(202)与壳体(30)之间形成有条状焊接部(L)并通过条状焊接部(L)而焊接接合。该压缩机(1)能够显著提高其中的底轴承座支架(20)与壳体(30)之间的焊接强度、避免焊接位置处发生应力集中，能够简化压缩机(1)的制造步骤，并且该压缩机(1)结构简单、易于加工制造，具有较高的成本效益。

Description

压缩机
本申请要求以下中国专利申请的优先权：于2019年4月1日提交中国专利局的申请号为201920432515.7、发明创造名称为“压缩机”的中国专利申请。该专利申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及一种压缩机，具体地，涉及一种对压缩机的底轴承座支架进行改进的压缩机。
背景技术
本部分提供了与本公开相关的背景信息，这些信息并不必然构成现有技术。
压缩机(例如涡旋压缩机)可以应用于例如制冷系统、空调系统和热泵系统中。压缩机包括壳体和设置在所述壳体内的下述部件：用于压缩工作流体(例如制冷剂)的压缩机构；马达，所述马达包括用于驱动所述压缩机构实施压缩操作的输出轴；以及底轴承座支架，所述底轴承座支架通常通过点焊接而固定至壳体，并且联接至所述输出轴来为所述输出轴提供支承。在压缩机工作期间，马达的输出轴高速旋转以驱动所述压缩机构实施压缩操作，所述底轴承座支架为所述输出轴提供支承以使输出轴保持稳定旋转。由此，输出轴旋转产生的径向载荷传递至底轴承座支架中，径向载荷随即传递至并作用于底轴承座支架与壳体之间的焊接点位置，随着压缩机工作时间的延长以及由于输出轴转速的周期变化而导致的径向载荷周期变化，使得所述焊接点易于发生疲劳断裂失效。
鉴于上述问题，期望的是能够加强底轴承座支架与壳体之间的焊接强度。
发明内容
在本部分中提供本公开的总体概要，而不是本公开完全范围或本公开所有特征的全面公开。
本公开的目的是在上面提到的一个或多个技术问题方面进行改进。总体而言，本公开提供了一种对压缩机的底轴承座支架进行改进从而能够加强底轴承 座支架与壳体之间的焊接强度的压缩机。
根据本公开的一个方面，提供了壳体；
压缩机构，所述压缩机构适于压缩工作流体；
马达，所述马达包括用于驱动所述压缩机构实施压缩操作的输出轴；以及
底轴承组件，所述底轴承组件为所述输出轴提供支承并且包括底轴承座支架，
其特征在于，所述底轴承座支架设置有接合部，所述接合部与所述壳体之间形成有条状焊接部并通过所述条状焊接部而焊接接合。
根据本公开的一个方面，所述壳体包括筒形侧壁部分和底盖，所述接合部焊接至所述筒形侧壁部分和/或所述底盖。
根据本公开的一个方面，所述接合部是沿着所述底轴承座支架的整个外周缘延伸的环形接合部。
根据本公开的一个方面，所述环形接合部呈沿所述底轴承座支架的轴向方向延伸的凸缘形式，所述条状焊接部形成在所述环形接合部的面向所述筒形侧壁部分和/或所述底盖的侧面上。
根据本公开的一个方面，所述条状焊接部为单条环形焊接部，所述环形接合部、所述筒形侧壁部分和所述底盖三者之间形成有所述单条环形焊接部并且通过所述单条环形焊接部而焊接接合在一起。通过设置沿着所述底轴承座支架的整个外周缘延伸的环形接合部，能够更好地确保所述底轴承座支架的整个外周缘均匀地焊接接合至所述壳体，从而形成完整的单条环形焊接部，因而环形焊接部各个点位共同承受径向载荷，从而大大减小可能产生的应力集中，显著提高所述底轴承座支架与所述壳体之间的焊接接合强度。并且，通过将所述环形接合部、所述筒形侧壁部分和所述底盖一起通过一条环形焊接部而焊接接合在一起，能够简化制造步骤，免于例如将所述环形接合部与所述筒形侧壁部分以及所述底盖与所述筒形侧壁部分分别实施焊接接合，降低制造成本。
根据本公开的一个方面，所述接合部包括沿着所述底轴承座支架的外周缘间隔开设置的至少两个弧形接合部。
根据本公开的一个方面，所述至少两个弧形接合部沿所述底轴承座支架的径向方向向外凸出或沿所述底轴承座支架的轴向方向延伸凸出，所述至少两个弧形接合部的与所述筒形侧壁部分和/或所述底盖焊接的接合面具有沿着所述 外周缘延伸的弧形表面。
根据本公开的一个方面，所述筒形侧壁部分和/或所述底盖上包括与所述至少两个弧形接合部一一对应的至少两个焊接缝隙，在所述弧形接合部与所述焊接缝隙之间形成有所述条状焊接部。
根据本公开的一个方面，所述筒形侧壁部分和/或所述底盖包括定位通孔，在将所述接合部与所述壳体通过所述条状焊接部而焊接接合之前，在所述接合部的对应于所述定位通孔的区域中形成作为预定位的焊接点，由此实施所述接合部与所述筒形侧壁部分和/或所述底盖之间的焊接。
根据本公开的一个方面，所述底轴承组件包括轴安装套筒，所述轴安装套筒通过焊接、螺纹连接或过盈连接而固定至所述底轴承座支架的中心通孔处，所述驱动轴穿过所述轴安装套筒和所述底轴承座支架的中心通孔而被支承。
根据本公开的一个方面，所述底轴承座支架采用钣金结构冲压或切削加工制成。
通过如上所述构型，本公开的压缩机至少带来如下有益技术效果：本公开的压缩机能够显著提高其中的底轴承座支架与壳体之间的焊接强度、避免焊接位置处发生应力集中，能够简化压缩机的制造步骤，并且本公开的压缩机结构简单、易于加工制造，具有较高的成本效益。
附图说明
根据以下参照附图的详细描述，本公开的前述及另外的特征和特点将变得更加清楚，这些附图仅作为示例并且不一定是按比例绘制。在附图中采用相同的附图标记指示相同的部件，在附图中：
图1a示出现有技术的压缩机的纵向剖视立体图。
图1b示出图1a中的现有技术的压缩机的局部立体图，其中示出了底轴承座支架。
图1c示出图1a中的现有技术的压缩机的局部剖视立体图，其中示出了底轴承座支架的局部放大图。
图2a示出根据本公开的一个优选实施方式的压缩机的局部纵向剖视立体图。
图2b示出图2a中的压缩机的底轴承座支架的局部放大图。
图3示出图2a中的压缩机的另一局部纵向剖视立体图。
图4示出图2a中的压缩机的局部立体图。
参考标记列表
涡旋压缩机1、P1；壳体30、P30；筒形侧壁部分301、P301
底盖303；底轴承座支架20、P20；接合部202、P202
焊接点P0；主轴承座P18；焊接芯部Pc；轴安装套筒204、P204
输出轴10、P10；焊接部L；定位通孔O；
具体实施方式
现在将结合附图1a-4对本公开的优选实施方式进行详细描述。以下的描述在本质上只是示例性的而非意在限制本公开及其应用或用途。
为了便于描述，在下述示例性实施方式中采用涡旋压缩机(下文也简称为“压缩机”)作为本公开的压缩机的一个示例，并且所述涡旋压缩机示例性地示出为立式涡旋压缩机。然而根据本公开的压缩机并不限于此类型，而可以是任何其他类型的压缩机。
图1a至图1c示出了现有技术的涡旋压缩机。首先，参照图1a至图1c概要地描述现有技术的涡旋压缩机的总体结构。
如图所示，涡旋压缩机P1可以包括：呈大致筒状的壳体P30；电动马达(图中未示出)；马达的输出轴10；于壳体P30内的下部联接至输出轴P10并为输出轴P10提供支承的底轴承座支架P20；于壳体P30内的上部联接至输出轴P10并为输出轴P10提供支承的主轴承座18；以及设置在主轴承座18上方且操作性地联接至输出轴P10的涡旋压缩机构(图中未示出)，其中，所述涡旋压缩机构包括动涡旋盘和定涡旋盘并且构造成适于在输出轴P10的驱动下压缩工作流体(例如制冷剂)。
其中，如图所示，壳体P30包括筒形侧壁部分P301、底盖以及顶盖(图中未示出)，在现有技术中，底轴承座支架P20焊接至筒形侧壁部分P301，随后再将底盖焊接至筒形侧壁部分P301，从而实现壳体P30的封闭。底轴承座支架P20包括一体模制成形的轴安装套筒P204和四个接合部P202(也称“腿部”)，轴安装套筒P204接纳输出轴P10并承载输出轴P10。如图1c所示的 截面图所示，接合部P202为内部中空的，其中空部分插置有焊接芯部Pc，通过将焊接芯部Pc与筒形侧壁部分P301实施点焊接而将四个接合部P202焊接至筒形侧壁部分P301，从而将底轴承座支架P20固定至壳体P30。优选地，为了提高点焊接的强度，焊接芯部Pc采用比接合部P202更有利于焊接结合强度的材料，例如采用更易于与焊料熔合的材料。然而，尽管如此，这种点焊接合构型的焊接结合区域太小，图中所示的四个焊接点承受了全部的径向载荷，在输出轴P10旋转操作过程中，由于转速周期性变化、启动和关闭等导致的一系列载荷变化都会导致焊接点处于的疲劳应力作用下，因而有必要改善底轴承座支架P20与壳体P30之间的焊接接合强度。并且，由于现有技术的底轴承座支架P20上的接合部P202的上述较复杂的中空结构，使其制造和加工复杂性和成本较高，因而通常采用模制制造，相应的模具也导致成本增加。
针对上述技术问题，本公开旨在提供一种对压缩机的底轴承座支架进行改进从而能够加强底轴承座支架与壳体之间的焊接强度的压缩机。总体上，本公开通过对底轴承座支架的构型进行改进以实现底轴承座支架与壳体之间通过条状焊接部而焊接接合。
下面将参照图2a至图4来详细描述根据本公开的一个优选实施方式的涡旋压缩机1。如图2a示出根据本公开的一个优选实施方式的涡旋压缩机1的局部纵向剖视立体图。
如图所示，涡旋压缩机1包括：呈大致筒状的壳体30，壳体30包括筒形侧壁部分301、底盖303以及顶盖(图中未示出)；电动马达(图中未示出)；马达的输出轴10；于壳体30内的下部联接至输出轴10并为输出轴10提供支承的底轴承组件，底轴承组件包括底轴承座支架20和设置在底轴承座支架20的中心通孔处的轴安装套筒204。在本实施方式中，如图所示，底轴承座支架20总体上具有倒“U”形横截面，其中，底轴承座支架20包括接合部202，接合部202沿底轴承座支架20的整个外周缘延伸并沿输出轴10的方向凸出形成环状凸缘，该环状凸缘的外侧壁面向壳体30以进行焊接。参照图2b可知，在本实施方式中，该环状凸缘的外侧壁同时抵接壳体30的筒形侧壁部分301和底盖303，并同时与筒形侧壁部分301和底盖303焊接而形成一条环形的焊接部L，也就是说，仅通过一次性焊接、仅通过这一条环形焊接部L而将该环状凸缘、筒形侧壁部分301和底盖303三者焊接在一起，而无需如前所述的现 有技术那样，分别实施将接合部202与筒形侧壁部分301焊接以及将筒形侧壁部分301与底盖303焊接的两次焊接步骤。从而简化了制造过程，节省了制造成本。
并且，由于底轴承座支架20的接合部202与壳体30焊接形成一条环形的焊接部，因此，底轴承座支架20承受的径向载荷被均匀分布于底轴承座支架20外周的整条环形焊接部L上，从而避免应力集中于某一处的焊接点，从而显著降低了焊接部由于承受疲劳载荷而断裂失效的风险，大大延长了使用寿命。
另一方面，由于焊接强度提高，不再需要在焊接部处采用不同于底轴承座支架20的其他部位的材料的更利于焊接熔合的特定材料，因而底轴承座支架20及其接合部202具有相比现有技术的更简单的构型，因而便于通过机械加工成形，例如可以通过钣金结构冲压或其他机械加工方法制成，而不必再采用模制成形。这也有利于制造的灵活性和节约成本。并且，在根据本公开的实施方式中，轴安装套筒204也可以通过机械加工制成单独的构件并与底轴承座支架20通过焊接、螺纹连接或过盈连接而配装在一起，这样也便于在轴安装套筒204损坏或失效的情况下灵活地更换轴安装套筒204，而无需整体更换底轴承组件。这也大大提高了制造灵活性并利于节约成本。
另一方面，如图3和图4所示，在筒形侧壁部分301的与接合部202相对的侧壁中设置有4个定位通孔O(图中仅示出两个)，在将接合部202与筒形侧壁部分301和底盖303焊接在一起之前，为了便于焊接操作，于4个定位通孔O处将接合部202预先焊接定位至筒形侧壁部分301和底盖303的预定位置处。应当理解的是，尽管本实施方式中示出了4个定位通孔O均位于筒形侧壁部分301上，但是本公开不限于此，定位通孔O的数目根据实际应用可以是任意数目，并且也可以设置在底盖303上或设置在筒形侧壁部分301和底盖303两者上，对此没有限制，只要能够便于将底轴承座支架20定位即可。
此外，根据本公开的另一个未图示出的示例性实施方式，底轴承座支架20的接合部202不限于上述环形凸缘状的构型，而是构造为沿着底轴承座支架20的外周缘间隔开设置的至少两个弧形接合部，优选地为4个均匀分布的弧形接合部。所述弧形接合部可以是与底轴承座支架20的外周缘平齐的部分也可以是如上述优选实施方式中的那样垂直于底轴承座支架20的表面凸出的 弧形凸缘，或者可以是沿底轴承座支架20的径向向外凸出的弧形“齿部”，又或者是同时垂直于底轴承座支架20的表面凸出且径向向外凸出的凸台部，等等，只要能够确保与壳体30通过条状焊接部接合即可。并且，针对这种实施方式，为了便于焊接操作，在壳体30上的与每个所述弧形接合部对应的区域设置有焊接缝隙，优选地为4个相应的焊接缝隙，从而便于从壳体30的外部对所述弧形接合部实施焊接。并且，也可以如上所述地在壳体30上设置定位通孔O以对所述弧形接合部实施预定位点焊。
此外，需指出的是，根据壳体30的筒形侧壁部分301和底盖303的尺寸和形状的不同，所述弧形接合部可以焊接至筒形侧壁部分301或底盖303，或者同时焊接至筒形侧壁部分301和底盖303，即，焊接缝隙可以设置在筒形侧壁部分301上或底盖303上，或者设置在二者之上。
尽管在前述实施方式中描述了根据本公开的涡旋压缩机的示例性实施方式，但是，本公开并不限于此，而是在不背离本公开的保护范围的情况下，可以进行各种改型、替换和组合。
显而易见的是，通过将不同的实施方式及各个技术特征以不同的方式进行组合或者对其进行改型，可以进一步设计得出各种不同的实施方式。
上文结合具体实施方式描述了根据本公开的优选实施方式的涡旋压缩机。可以理解，以上描述仅为示例性的而非限制性的，在不背离本公开的范围的情况下，本领域技术人员参照上述描述可以想到多种变型和修改。这些变型和修改同样包含在本公开的保护范围内。

Claims (11)

  1. 一种压缩机，所述压缩机包括：
    壳体；
    压缩机构，所述压缩机构适于压缩工作流体；
    马达，所述马达包括用于驱动所述压缩机构实施压缩操作的输出轴；以及
    底轴承组件，所述底轴承组件为所述输出轴提供支承并且包括底轴承座支架，
    其特征在于，所述底轴承座支架设置有接合部，所述接合部与所述壳体之间形成有条状焊接部并通过所述条状焊接部而焊接接合。
  2. 根据权利要求1所述的压缩机，其中，所述壳体包括筒形侧壁部分和底盖，所述接合部焊接至所述筒形侧壁部分和/或所述底盖。
  3. 根据权利要求2所述的压缩机，其中，所述接合部是沿着所述底轴承座支架的整个外周缘延伸的环形接合部。
  4. 根据权利要求3所述的压缩机，其中，所述环形接合部呈沿所述底轴承座支架的轴向方向延伸的凸缘形式，所述条状焊接部形成在所述环形接合部的面向所述筒形侧壁部分和/或所述底盖的侧面上。
  5. 根据权利要求3所述的压缩机，其中，所述条状焊接部为单条环形焊接部，所述环形接合部、所述筒形侧壁部分和所述底盖三者之间形成有所述单条环形焊接部并且通过所述单条环形焊接部而焊接接合在一起。
  6. 根据权利要求2所述的压缩机，其中，所述接合部包括沿着所述底轴承座支架的外周缘间隔开设置的至少两个弧形接合部。
  7. 根据权利要求6所述的压缩机，其中，所述至少两个弧形接合部沿所述底轴承座支架的径向方向向外凸出或沿所述底轴承座支架的轴向方向延伸 凸出，所述至少两个弧形接合部的与所述筒形侧壁部分和/或所述底盖焊接的接合面具有沿着所述外周缘延伸的弧形表面。
  8. 根据权利要求6所述的压缩机，其中，所述筒形侧壁部分和/或所述底盖上包括与所述至少两个弧形接合部一一对应的至少两个焊接缝隙，在所述弧形接合部与所述焊接缝隙之间形成有所述条状焊接部。
  9. 根据权利要求2至8中任一项所述的压缩机，其中，所述筒形侧壁部分和/或所述底盖包括定位通孔，在将所述接合部与所述壳体通过所述条状焊接部而焊接接合之前，在所述接合部的对应于所述定位通孔的区域中形成作为预定位的焊接点，由此实施所述接合部与所述筒形侧壁部分和/或所述底盖之间的焊接。
  10. 根据权利要求1至8中任一项所述的压缩机，其中，所述底轴承组件包括轴安装套筒，所述轴安装套筒通过焊接、螺纹连接或过盈连接而固定至所述底轴承座支架的中心通孔处，所述输出轴穿过所述轴安装套筒和所述底轴承座支架的中心通孔而被支承。
  11. 根据权利要求1至8中任一项所述的压缩机，其中，所述底轴承座支架采用钣金结构冲压或切削加工制成。
PCT/CN2019/115923 2019-04-01 2019-11-06 压缩机 WO2020199583A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201920432515.7U CN209800270U (zh) 2019-04-01 2019-04-01 压缩机
CN201920432515.7 2019-04-01

Publications (1)

Publication Number Publication Date
WO2020199583A1 true WO2020199583A1 (zh) 2020-10-08

Family

ID=68827464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/115923 WO2020199583A1 (zh) 2019-04-01 2019-11-06 压缩机

Country Status (2)

Country Link
CN (1) CN209800270U (zh)
WO (1) WO2020199583A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7071670B2 (ja) * 2020-08-25 2022-05-19 ダイキン工業株式会社 圧縮機、及び圧縮機の製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006291787A (ja) * 2005-04-08 2006-10-26 Mitsubishi Electric Corp 圧縮機、圧縮機の組立方法
JP2010121450A (ja) * 2008-11-17 2010-06-03 Panasonic Corp 冷凍空調用圧縮機
CN203394761U (zh) * 2013-08-05 2014-01-15 珠海格力节能环保制冷技术研究中心有限公司 焊接件、压缩机下支架及压缩机
CN103807170A (zh) * 2014-03-11 2014-05-21 张云娣 一种过高压及缺氟保护的柔性涡旋压缩机
CN207377807U (zh) * 2017-09-19 2018-05-18 艾默生环境优化技术(苏州)有限公司 用于压缩机的底轴承支架和压缩机
CN108799110A (zh) * 2017-05-03 2018-11-13 丹佛斯商用压缩机公司 具有包括第一和第二筒状边缘部分的基板的涡旋压缩机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006291787A (ja) * 2005-04-08 2006-10-26 Mitsubishi Electric Corp 圧縮機、圧縮機の組立方法
JP2010121450A (ja) * 2008-11-17 2010-06-03 Panasonic Corp 冷凍空調用圧縮機
CN203394761U (zh) * 2013-08-05 2014-01-15 珠海格力节能环保制冷技术研究中心有限公司 焊接件、压缩机下支架及压缩机
CN103807170A (zh) * 2014-03-11 2014-05-21 张云娣 一种过高压及缺氟保护的柔性涡旋压缩机
CN108799110A (zh) * 2017-05-03 2018-11-13 丹佛斯商用压缩机公司 具有包括第一和第二筒状边缘部分的基板的涡旋压缩机
CN207377807U (zh) * 2017-09-19 2018-05-18 艾默生环境优化技术(苏州)有限公司 用于压缩机的底轴承支架和压缩机

Also Published As

Publication number Publication date
CN209800270U (zh) 2019-12-17

Similar Documents

Publication Publication Date Title
JP5171310B2 (ja) 気密型電動機
KR102552016B1 (ko) 모터용 로터 조립체
JP2013224652A (ja) 電動圧縮機
JPH0718436B2 (ja) 鋼板製中間ケーシング及び該中間ケーシングを用いた多段ポンプ
KR0175182B1 (ko) 로터리식 압축기
WO2020199583A1 (zh) 压缩机
JP5118568B2 (ja) ガスタービンの排気ディフューザ
JP2018119595A (ja) 電動弁及び冷凍サイクルシステム
TW201410989A (zh) 利用雷射熔化風扇絕緣架與軸筒之結合結構及其方法
JPH10299681A (ja) 流体機械
US5183400A (en) Pipe connection structure of a compressor
US20070210670A1 (en) Motor
KR101190065B1 (ko) 스크롤압축기 및 이의 조립방법
TW201719043A (zh) 軸接頭及泵裝置
US10539146B2 (en) Centrifugal pump
CN109538302B (zh) 涡轮转子结构和涡轮发动机
CN209800285U (zh) 一种泵
JP2011085143A (ja) 圧縮機の溶接方法、及びその溶接方法を用いて溶接された圧縮機
WO2020039774A1 (ja) 送風機
JPH0650283A (ja) 全周流型ポンプ
JP2016156365A (ja) 遠心ファン
JP2008248889A (ja) 密閉型圧縮機
CN211908524U (zh) 一种电机定子固定结构、电机以及压缩机
JP4415178B2 (ja) スクロール流体機械及びその組立方法
CN111365281A (zh) 轴承支座、具有其的气悬浮压缩机及空调

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19922526

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19922526

Country of ref document: EP

Kind code of ref document: A1