JPH11182433A - Enclosed compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembling method of an enclosed compressor where the strength of welding between a supporting frame and an enclosed vessel is large, while this supporting frame is installed in the enclosed vessel after being welded from the outside of this vessel. SOLUTION: This is an enclosed compressor 1B equipped with a motor- operated element 2 installed in an enclosed vessel 1, a compressive element 3 driven by this motor-operated element 2, and a supporting frame 7 being welded from the outside of the enclosed vessel 1 and installed in this vessel 1, and supporting this compressive element 3, and it is welded so as to have a welding hole 11 preinstalled in a welding position 10 of the enclosed vessel 1 connected to a recess 12 installed on an outer surface of the supporting frame 7 being faced to this welding hole 11 as corresponding to this hole 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor used for refrigerators and air conditioners.

[0002]

2. Description of the Related Art Conventionally, a hermetic compressor 1A used in a refrigeration cycle of an air conditioner or the like has a structure shown in FIG. 5, for example. Cylindrical closed container 1 with both ends closed
The electric element 2 and the compression element 3 are built in the inside. The electric element 2 includes a stator 4 fixed to the inner wall surface side of the closed container 1 and a rotor 5 rotatably supported inside the stator 4, and a rotary shaft 6 penetrates the rotor 5. Is joined to. The rotation shaft 6 is rotatably supported by a support frame 7 that forms a part of the compression element 3. Then, the refrigerant gas is sucked into the compression element 3 through the suction pipe 8, and the refrigerant gas compressed and compressed by the refrigerant gas is once discharged into the high-pressure space in the sealed container 1,
It is discharged from the discharge pipe 9. The support frame 7 is attached to the inside of the closed container 1 by welding from the outside of the closed container 1. Reference numeral 10 denotes a welding position. Conventionally, in order to weld the support frame 7 from the outside of the sealed container 1, an appropriate welding hole 11 is provided in advance at a welding position 10 of the sealed container 1, and the support frame 7 inside the sealed frame 1 is provided through the welding hole 11. Is connected by welding. A shows an enlarged view of the weld. However, such welding has a problem in that the welding area is small and the strength of welding is insufficient.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a support frame 7 which is welded from the outside of a closed vessel 1 and is mounted in the closed vessel 1, and the strength of welding between the support frame 7 and the closed vessel 1 is reduced. It is to provide a large hermetic compressor.

[0004]

That is, in order to solve the above-mentioned problems, the invention according to claim 1 comprises an electric element provided in a closed container, a compression element driven by the electric element, A hermetic compressor having a support frame that is welded from the outside and is mounted in the hermetic container and supports the compression element, wherein a welding hole provided in advance at a welding position of the hermetic container, A recess provided corresponding to the welding hole is connected and welded to an outer surface of the support frame facing the welding hole. Since the concave portion is provided on the outer surface of the support frame corresponding to the welding hole, the welding area of the welded portion is increased, so that the welding strength can be increased.

According to a second aspect of the present invention, there is provided a motorized element provided in an airtight container, a compression element driven by the motorized element, and a welding element welded from the outside of the airtight container. A hermetic compressor equipped with a support frame that supports the compression element, and a welding hole provided in advance at a welding position of the hermetic container,
The welding member made of a material suitable for welding embedded in the outer surface of the support frame facing the welding hole is connected to a recess provided corresponding to the welding hole and welded. It is assumed that. The welding member made of a material suitable for welding embedded in the outer surface of the support frame is provided with a concave portion corresponding to the welding hole, so that the welding area of the welding portion is increased, and the welding member is suitable for welding. Can be further increased.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings shown in FIGS. FIG. 1 is an explanatory view for explaining an overall configuration and a welded portion of an embodiment of the hermetic compressor of the present invention, and FIG. 2 is a perspective view of the hermetic compressor of the present invention shown in FIG. FIG. 3 is an exploded perspective view of the hermetic compressor of the present invention shown in FIG. In FIG. 1, a hermetic compressor 1B of the present invention is provided with a welding hole 11 at a welding position 10 of a sealed container 1 in advance, and a welding hole 11 on an outer surface of a support frame 7 facing the welding hole 11. A concave portion 12 is provided corresponding to
The support frame 7 is provided with a welding hole 11 from outside the closed container 1.
The configuration is the same as that of the hermetic compressor 1A shown in FIG. 5 except that the and the recess 12 are connected and welded and mounted in the hermetic container 1. B shows an enlarged view of the weld. Since the concave portion 12 is provided on the outer surface of the support frame 7 corresponding to the welding hole 11, the welding area of the welded portion is increased, so that the welding strength can be increased. The hermetic compressor 1B of the present invention shown in FIG.
In the example described above, the same applies to the welded portion between the sub-support frame 33 and the closed casing 1.

2 and 3, reference numeral 14 denotes an end cap, 9 denotes a discharge pipe, 15 denotes a mounting bracket, 16 denotes a partition plate for partitioning the interior of the sealed container 1 into a high-pressure section and a low-pressure section, and 17 denotes a sealing material. 18 is a guide of the float valve mechanism, 19
Is a float valve, which is fixed to the discharge port of the fixed scroll 20 to constitute a float valve mechanism. 21
Is a key integrally attached to the fixed scroll 20,
Reference numeral 22 denotes a tip seal attached to the tip of the wrap of the fixed scroll 20. Reference numeral 23 denotes an orbiting scroll, and at the tip of the wrap, similarly to the fixed scroll 20,
The tip seal 24 is attached. Reference numeral 25 denotes an Oldham ring for restricting the rotation of the orbiting scroll 23, and reference numeral 7 denotes a support frame for fixing the fixed scroll 20, to which an oil cover 26 is attached. 27
Is a cylindrical body, and forms the closed container 1 in combination with the end cap 14 and the bottom 37. Reference numeral 28 denotes a terminal, and 29 denotes a terminal cover, which is connected to a lead wire of the stator 4 shrink-fitted or press-fitted into the body 27. 8 is a suction pipe. Reference numeral 6 denotes a rotating shaft. The eccentric portion is attached to the orbiting scroll 23, and the crank portion is supported by the support frame 7. Reference numeral 30 denotes an oil pickup attached to the end of the rotating shaft 6. Reference numeral 5 denotes a rotor, which is a balancer at the top and bottom (an end member that also serves as a balance weight).
1 and 32 are attached and extrapolated to the rotating shaft 6. 33
Is a sub-support frame that supports the rotating shaft 6, and a thrust bearing is provided below the auxiliary support frame by attaching a thrust 34 with a cover 35. Reference numeral 36 denotes an attachment leg attached to the bottom 37.

In FIG. 4, another hermetic compressor 1C of the present invention is provided with a welding hole 11 at a welding position 10 of the sealed container 1 in advance, and an outer surface of a support frame 7 facing the welding hole 11. A welding member 13 made of a material suitable for welding is buried (for example, a steel round pin having a diameter of 6 mm is press-fitted and buried). And the welding member 1
3 has a recess 12 corresponding to the welding hole 11. The support frame 7 is mounted inside the sealed container 1 by welding the welding hole 11 and the concave portion 12 provided on the welding member 13 from outside the sealed container 1. Except for this, the hermetic compressor 1C of the present invention is the same as the hermetic compressor 1A shown in FIG. C shows an enlarged view of the weld. In the example of another hermetic compressor 1C of the present invention shown in FIG. 4, the same applies to the welded portion between the sub-support frame 33 and the hermetic container 1. Since the recess 12 is provided in the welding member 13 corresponding to the welding hole 11 on the outer surface of the support frame 7, the welding area of the welding portion is increased, and the welding strength is further increased because the welding member 13 is suitable for welding. it can. Although a plurality of welding positions 10 are shown in FIGS. 1 to 4, the number of welding positions 10 is not limited to this. For example, the number of welding positions 10 is the number of legs of the support frame 7 in contact with the closed casing 1. It is preferable that the number of welding positions 10 be equal to
Preferably it is equal to the number of 3 feet.

Since the present invention is not limited to the above embodiment, various modifications can be made without departing from the spirit of the appended claims.

[0010]

According to the hermetic compressor of the present invention, the support frame 7 is welded from the outside of the closed vessel 1 and mounted in the closed vessel 1, and the strength of welding between the support frame 7 and the closed vessel 1 is large. . If the recess 12 is provided in the welding member 13 embedded in the outer surface of the support frame 7 in correspondence with the welding hole 11, the welding strength can be further increased.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating an overall configuration and a welded portion of an embodiment of a hermetic compressor according to the present invention.

FIG. 2 is a perspective view of the hermetic compressor of the present invention shown in FIG.

FIG. 3 is an exploded perspective view of the hermetic compressor of the present invention shown in FIG.

FIG. 4 is an explanatory diagram illustrating the overall configuration and a welded portion of another hermetic compressor of the present invention.

FIG. 5 is an explanatory diagram illustrating the overall configuration and a welded portion of a conventional hermetic compressor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A, 1B, 1C Hermetic compressor 1 Airtight container 2 Electric element 3 Compression element 4 Stator 5 Rotor 5 6 Rotating shaft 7 Support frame 10 Welding position 11 Welding hole 12 Depression 13 Welding member 33 Secondary support frame

 ──────────────────────────────────────────────────の Continuing on the front page (72) Fumihiko Kurita 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Yoshinori Tobo 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. An electric element provided in a closed container, a compression element driven by the electric element, and a welding element mounted on the closed container welded from the outside of the closed container to support the compression element. A hermetic compressor having a support frame, the welding hole provided in advance at a welding position of the hermetic container, and corresponding to the welding hole on the outer surface of the support frame facing the welding hole. A hermetic compressor characterized in that a recess provided is connected and welded. 2. An electric element provided in an airtight container, a compression element driven by the electric element, and mounted in the airtight container by being welded from outside the airtight container to support the airtight element. A sealed compressor having a support frame and a welding hole provided in advance at a welding position of the sealed container, and suitable for welding embedded in an outer surface of the support frame facing the welding hole. A hermetic compressor characterized in that a welding member made of a material is connected to and welded to a concave portion provided corresponding to the welding hole.