CN104343688A - Welding part, compressor lower bracket and compressor - Google Patents
Welding part, compressor lower bracket and compressor Download PDFInfo
- Publication number
- CN104343688A CN104343688A CN201310337988.6A CN201310337988A CN104343688A CN 104343688 A CN104343688 A CN 104343688A CN 201310337988 A CN201310337988 A CN 201310337988A CN 104343688 A CN104343688 A CN 104343688A
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- weldment
- support arm
- central part
- radiating body
- compressor
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Classifications
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- 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
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- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a welding part, a compressor lower bracket and a compressor. The welding part comprises a center part, a support arm, an annular cooling body and a welding part, wherein the support arm is arranged at the periphery of the center part, and outwards extends along the center part; the annular cooling body is arranged at one side, far from the center part, of the support arm, and is supported at the periphery of the center part through the support arm; and the welding part is arranged on the annular cooling body. According to the welding part, when the welding part is fixedly welded on another structure, heat generated in the welding process passes through the annular cooling body, is transferred to the support arm, and finally arrives at the center part; and after passing through the annular cooling body and the support arm, the heat generated in the welding process is continuously decreased, so that the heat finally transferred to the center part is reduced so as to prevent a structure arranged in the center part from being deformed.
Description
Technical field
The present invention relates to compressor field, more specifically, relate to a kind of weldment, compressor lower support frame and compressor.
Background technique
Scroll compressor because its efficiency is high, volume is little, quality is light, operate steadily and be widely used in refrigeration and the field such as air-conditioning and heat pump.In general, scroll compressor is made up of closed shell, fixed scroll, orbiter, supporting frame, bent axle, anti-rotation mechanism and motor, the molded line of dynamic and static scroll is all spiralitys, the relative fixed scroll bias of orbiter also differs 180 degree of installations, they axially can contact (being then several point cantact on cross section) on several straight lines in theory, the end of vortex body molded line is touched with relative vortex body bottom connection, so define a series of crescent-shaped space between dynamic and static scroll, i.e. element volume.At orbiter with the center of fixed scroll for rotating center and when doing revolution translation without rotation with certain turning radius, outer ring crescent-shaped space just can constantly move to center, now, refrigerant is pushed to central space gradually, its volume constantly reduces and pressure constantly raises, until communicate with central exhaust port, high pressure refrigerant is discharged the pump housing.
In scroll compressor, supporting frame is made up of upper bracket, lower support frame, and described lower support frame is a kind of weldment, is colded pressing within the compressor by bearing together with upper bracket.Supporting frame plays support and balanced action to the axle system that rotor, bent axle, equilibrium block etc. form, the bearing of upper bracket, lower support frame and the journal engagement of bent axle, make center line of shafting maintain Vertical direction and overlap with casing centerline, now, crankshaft journal and bearing fit even, evenly, compressor shaft system can keep good running state, and Overall Power Consumption is also minimum for rotor and stator gap.
Shown in Fig. 1 and Fig. 2, in existing structure, lower support frame 100 device is made up of weld part, support arm, central part, support arm is distribution in " ten " word shape, is connected to weld part and central part, during assembling, bearing is colded pressing in lower support frame 100 central part, be set to crankshaft journal place with frock again, then weld part and compressor housing be welded and fixed, complete lower support frame assembling.
In addition, also there is in existing structure a kind of combined type lower support structure, be made up of welding ring, bolt, central part, during assembling, first welding ring is welded and fixed on housing, then has the central part of bearing to be fixed to above welding ring with bolt by colding pressing, complete lower support frame assembling.
But, above-mentioned lower support structure all existing defects, the first structure is directly connected by support arm with central part due to weld part, and during welding, welding heat can be delivered to central part and bearing, because welding heating value is large, bearing can be caused to produce distortion, and bearing coordinates uneven with crankshaft journal, cause axle system to be tilted, the phenomenons such as the operation of axle system is bad, the increase of compressor power consumption, there will be compressor stuck phenomenon time serious.The second lower support structure quotes split-type structural, although avoid the distortion of welding and causing, owing to using Split type bolt linkage structure, add part usage quantity, assembling also becomes more complicated, adds cost and process complexity.
Summary of the invention
The present invention aims to provide a kind of weldment, compressor lower support frame and compressor, and to solve weldment of the prior art when welding, heat is directly passed to from support arm the problem that central part easily causes the malformation being arranged on central part.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of weldment, this weldment comprises central part; Support arm, be arranged on the periphery of central part, and centrally portion stretches out; Circular radiating body, is arranged on the side away from central part of support arm, and is supported on the periphery of central part by support arm; Weld part, is arranged on circular radiating body.
Further, support arm is multiple, and circular radiating body is divided into multiple radiating segment by multiple support arm, and adjacent two support arms, radiating segment between adjacent two support arms and central part form heat-dissipating space.
Further, weld part comprises the first welding hole, and the first welding hole is arranged on circular radiating body, and away from the position that circular radiating body and support arm contact.
Further, the first welding hole is arranged on the outside of circular radiating body, and the inner side relative with the first welding hole of circular radiating body is provided with projection.
Further, weld part also comprises welding step, and welding step is arranged on the periphery of circular radiating body.
Further, circular radiating body also comprises multiple straightway and the arc section being connected adjacent two straightways, and the link position of support arm and circular radiating body is positioned on straightway, arc section offers the second welding hole.
Further, support arm is three or four, and three or four support arms are evenly distributed on the periphery of central part.
Further, weldment also comprises positioning hole, and positioning hole is arranged on the position that support arm contacts with weld part.
Further, be provided with in heat-dissipating space and heat-dissipating space is divided into bilevel thin walled structures, thin walled structures is provided with spill port.
According to a further aspect in the invention, provide a kind of compressor lower support frame, this compressor lower support frame is made up of above-mentioned weldment.
In accordance with a further aspect of the present invention, provide a kind of compressor, this compressor comprises compressor lower support frame, and this compressor lower support frame is made up of above-mentioned weldment, and bent axle and the supplementary bearing of compressor are arranged on the central part of weldment.
According to embodiments of the invention, weldment comprises central part, support arm, circular radiating body and weld part.Wherein, support arm is arranged on the periphery of central part, and centrally portion stretches out; Circular radiating body is arranged on the side away from central part of support arm, and is supported on the periphery of central part by support arm; Weld part is arranged on circular radiating body, is weldingly fixed in other structures by weldment by the effect of weld part.In this process, the heat that welding produces is first through circular radiating body, then just support arm can be passed to, finally arrive central part, after circular radiating body and support arm, the heat that welding process produces constantly reduces, and the heat being finally passed to central part is reduced, and then prevents the structure generation deformation being arranged on central part place.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the plan view of existing weldment;
Fig. 2 diagrammatically illustrates the sectional view of existing weldment;
Fig. 3 diagrammatically illustrates the sectional view of scroll compressor of the present invention;
Fig. 4 diagrammatically illustrates the plan view of the first embodiment of weldment of the present invention;
Fig. 5 diagrammatically illustrates the sectional view of the first embodiment of weldment of the present invention;
Fig. 6 diagrammatically illustrates the plan view of the second embodiment of weldment of the present invention;
Fig. 7 diagrammatically illustrates the plan view of the 3rd embodiment of weldment of the present invention;
Fig. 8 diagrammatically illustrates the plan view of the 4th embodiment of weldment of the present invention;
Fig. 9 diagrammatically illustrates the sectional view of the 4th embodiment of weldment of the present invention;
Figure 10 diagrammatically illustrate the weldment of the fourth embodiment of the present invention and case weld well after partial sectional view;
Figure 11 diagrammatically illustrates the plan view of the 5th embodiment of scroll compressor of the present invention;
Figure 12 diagrammatically illustrates the plan view of the 6th embodiment of weldment of the present invention; And
Figure 13 diagrammatically illustrates the sectional view of the 6th embodiment of weldment of the present invention.
Description of reference numerals:
1, housing; 2, orbiter; 3, upper bracket; 4, return tube; 5, bent axle; 5B, main journal; 5A, countershaft neck; 6, stator; 7, lower support frame; 8, rotor; 9A, supplementary bearing; 9B, main bearing; 10, central part; 11, lower cover; 12, oil baffle; 20, support arm; 40, weld part; 31, circular radiating body; 32, protruding; 41, the first welding hole; 42, the second welding hole; 43, step is welded; 34, straightway; 35, arc section; 50, positioning hole; 60, heat-dissipating space; 61, thin walled structures; 62, spill port; S2, bottom oil sump; Space residing for S1, motor.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Shown in composition graphs 3, Fig. 4 and Fig. 5, according to the first embodiment of the present invention, weldment comprises central part 10, support arm 20, circular radiating body 31 and weld part 40.Wherein, support arm 20 is arranged on the periphery of central part 10, and centrally portion 10 stretches out; Circular radiating body 31 is arranged on the side away from central part 10 of support arm 20, and is supported on the periphery of central part 10 by support arm 20; Weld part 40 is arranged on circular radiating body 31, by the effect of weld part 40, weldment is weldingly fixed in other structure, in this process, the heat that welding produces, first through circular radiating body 31, then just can be passed to support arm 20, finally arrives central part 10, after circular radiating body 31 and support arm 20, the heat that welding process produces constantly reduces, and the heat being finally passed to central part 10 is reduced, and then prevents the structure generation deformation being arranged on central part 10 place.
In an embodiment of the present invention, above-mentioned weldment can be utilized to make the lower support frame 7 of compressor, now, the bent axle 5 of compressor is arranged in the mounting hole offered in weldment central part 10, supplementary bearing 9A sets up on central part 10, when weldment is weldingly fixed on housing 1 time, the heat that welding produces is first through circular radiating body 31, then just support arm 20 can be passed to, finally arrive central part 10, after circular radiating body 31 and support arm 20, the heat that welding process produces constantly reduces, the heat being finally passed to central part 10 is reduced, and then prevent the bent axle 5 and the supplementary bearing 9A generation thermal distortion that are arranged on central part 10 place, avoid supplementary bearing 9A and the uneven and various adverse effects caused of bent axle 5 journal engagement.
In the present embodiment, support arm 20 is multiple, multiple support arms 20 that circular radiating body 31 is arranged on central part 10 periphery are divided into multiple radiating segment, and adjacent two support arms 20, radiating segment between adjacent two support arms 20 and central part 10 form heat-dissipating space 60, when weldment being made compressor lower support frame 7, compressor lower support frame 7 is welded on housing 1, the heat now produced can distribute rapidly in heat-dissipating space 60, thus decrease the heat being passed to central part 10, effectively prevent the bent axle 5 at central part 10 place and the thermal distortion of supplementary bearing 9A further.Consider the steadiness supported, the quantity of support arm 20 should not be less than 2.Preferably, the support arm 20 of the present embodiment is three or four, and above-mentioned three or four support arms 20 equably, are removably distributed in the periphery of central part 10, support circular radiating body 31.
Specifically, the number that weld part 40 comprises the first welding hole 41, first welding hole 41 equals the multiple of the number of support arm 20.The first above-mentioned welding hole 41 is arranged on the outside of circular radiating body 31, and the position that the first welding hole 41 contacts away from circular radiating body 31 and support arm 20, ensure that the heat that welding process produces distributes as much as possible on circular radiating body 31, the heat being finally passed to central part 10 is reduced as much as possible.Preferably, first welding hole 41 is positioned on the center line of the angle that two adjacent support arms 20 are formed, now, first welding hole 41 to central part 10 apart from longer, therefore solder joint rapid heat dissipation during welding, the heat being delivered to the supplementary bearing 9A at central part 10 place is few, suppress the thermal distortion of supplementary bearing 9A, thus keep the no-float of main bearing 9B, the supplementary bearing 9A of compressor and the main journal 5B of bent axle 5 and countershaft neck 5A, the gap uniformity between stator 6, rotor 8, maintain the good operation of axle system.During assembling, first supplementary bearing 9A is colded pressing in central part 10, then be set to bent axle 5 countershaft neck 5A place with frock clamping lower support frame 7, then by the first welding hole 41, lower support frame 7 and housing 1 are welded and fixed, complete the installation of lower support frame 7.
Shown in Figure 6, according to a second embodiment of the present invention, the structure of weldment and the basically identical of the first embodiment, difference is that the inner side relative with the first welding hole 41 of circular radiating body 31 is provided with protruding 32, projection 32 and the first welding hole 41 are located along the same line, and add thickness and the volume of the material at the first welding hole 41 place.When welding, inhibit the thickness due to circular radiating body 31 less and crackle may be occurred when welding, causing the phenomenon of not prison welding.When the lower support frame 7 utilizing the weldment of the present embodiment as compressor, one can be obtained and can reduce supplementary bearing 9A thermal distortion, the firm welding of compressor lower support frame 7 can be improved again when material increases minimum, reduce the manufacture cost of enterprise.
Shown in Figure 7, according to the third embodiment of the invention, the structure of weldment is substantially identical with the first embodiment, when utilizing the weldment of the present embodiment as compressor lower support frame, its assembly process is also basically the same as those in the first embodiment, difference is, the circular radiating body 31 of the present embodiment comprises multiple straightway 34 and the arc section 35 being connected adjacent two straightways 34, the arranged outside of arc section 35 has the second welding hole 42, and support arm 20 is positioned on straightway 34 with the link position of circular radiating body 31, because the second welding hole 42 is positioned on arc section 35, avoid the position that support arm 20 contacts with straightway 34, the heat produced in welding process is made to be passed to central part 10 as few as possible, thus suppress the thermal distortion being arranged on the structure at central part 10 place.
Shown in composition graphs 8, Fig. 9 and Figure 10, according to a fourth embodiment of the invention, weldment structure is substantially identical with the first embodiment, difference is, first welding hole 41 is not set in the present embodiment, but the first welding hole 41 being arranged on instead the welding step 43 of the periphery of circular radiating body 31, welding step 43 structure ringwise, its external diameter is greater than the internal diameter of housing 1 but is less than the external diameter of housing 1.Using the weldment of the present embodiment as the assembly process of the lower support frame 7 of compressor be: first supplementary bearing 9A is colded pressing in lower support frame 7 central part 10, then lower support frame 7 is put into housing 1 along the countershaft neck 5A of bent axle 5, make the upper-end surface of welding step 43 and the lower end surface overlap joint of housing 1, simultaneously, compressor lower cover 11 is inserted in circular radiating body 31, the end face of lower cover 11 is overlapped with the lower end surface of welding step 43, now, the lower end surface of housing 1, between the end face of welding step 43 and lower cover 11, there is certain space, the heat produced when can prevent from welding is passed to rapidly the central part 10 of lower support frame 7.Finally, use girth welding technology housing 1, lower support frame 7, lower cover 11 to be welded together, form weld seam, complete the fixing of lower support frame 7 and lower cover 11.In the present embodiment, due to add at lower support frame 7 welding step 43, make the welding of lower support frame 7 can weld with lower cover 11 together with complete, decrease the welding process of lower support frame 7, simplify the assembly technology of compressor.
Shown in Fig. 3 and Figure 11, according to a fifth embodiment of the invention, weldment is substantially identical with the mechanism of the first embodiment, difference is, the weldment of the present embodiment also comprises the positioning hole 50 of the return tube 4 for fixing compressor, and this positioning hole 50 is arranged on position that support arm 20 contacts with weld part 40 and along the through lower support frame 7 of axis of bent axle 5.During with lower support frame 7 as compressor of the weldment of the present embodiment, in assembly process, lower support frame 7 is except being inserted in housing 1 along the diameter of axle of bent axle 5, positioning hole 50 is inserted in the bottom of return tube 4 simultaneously along the return tube 4 of being drawn by upper bracket 3, because the diameter of positioning hole 50 is slightly larger than return tube 4 external diameter, therefore will become more easy for the fixing of return tube 4 bottom, and decrease the use of return tube 4 fixed element, reduce the manufacturing cost of enterprise.
Shown in composition graphs 3, Figure 12 and 13, according to a sixth embodiment of the invention, the structure of weldment is substantially identical with the structure of the first embodiment, difference is, be provided with and be divided into up and down by heat-dissipating space 60 thin walled structures 61 that (here refer to during weldment horizontal positioned up and down upper and lower) is two-layer in heat-dissipating space 60, thin walled structures 61 is provided with spill port 62.During with lower support frame 7 as compressor of the weldment of the present embodiment, complete the installation of lower support frame 7 according to the assembly method of the first embodiment after, due to the existence of thin walled structures 61, space S 1 residing for motor is separated with bottom oil sump S2 by lower support frame 7, now, when dropping to bottom compressor from the mixed gas of compression chamber discharge, meeting direct collision is to thin walled structures 61, refrigerant in mixed gas is discharged because baffling effect rises to exhaust outlet of compressor, the stirring of the lubricant oil of the bottom oil sump S2 preventing down current from causing, oil can be suppressed to raise up, reduce compressor oil drainage rate.And lubricant oil in mixed gas can directly be attached on thin walled structures 61 due to effect of impact, and get back in the oil sump S2 of bottom by spill port 62, realize the circulation of oil.Therefore, thin walled structures 61 has the effect identical with compressor oil baffle 12, adopts the lower support frame 7 with thin walled structures 61 no longer to need mounting block oiled-plate method 12, decreases compressor components use amount.
Refer again to shown in Fig. 3, according to a seventh embodiment of the invention, provide a kind of compressor, comprise compressor lower support frame 7, upper bracket 3, bent axle 5 etc., wherein compressor lower support frame 7 is the compressor lower support frame 7 of above-mentioned any embodiment, the bent axle of compressor is arranged in the mounting hole of support 7, and be supported on lower support frame 7 by the supplementary bearing 9A be arranged on the central part 10 of lower support frame 7, when lower support frame 7 is welded with housing 1, the heat that welding process produces can reduce under the effect of circular radiating body 31, the heat being passed to central part 10 is reduced, thus prevent the bent axle 5 and the supplementary bearing 9A generation thermal distortion that are arranged on central part 10, avoid supplementary bearing 9A and the uneven and various adverse effects caused of bent axle 5 journal engagement.The working principle illustrating compressor is: main bearing 9B colds pressing and to coordinate in upper bracket 3 and with the countershaft neck 5B of bent axle 5, supplementary bearing 9A to cold pressing in lower support frame 7 central part 10 and coordinates with the main shaft diameter 5A of bent axle 5, upper bracket 3, lower support frame 7 complete the support of shaft radial direction by main bearing 9B, supplementary bearing 9A, when stator 6 is energized, rotor 8 is with moving axis system to operate, thus driving orbiter 2 translation by bent axle 5 head, compression chamber realizes the process of air-breathing, compression, exhaust.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
(1) weldment circular radiating body be arranged so that the heat portion that welding process produces distributes as much as possible, reduce the heat being passed to central part, and then prevent the structure generation thermal distortion being arranged on central part, when with the lower support frame of weldment as compressor, supplementary bearing can be avoided with crankshaft journal to coordinate uneven and various adverse effects that are that cause.
(2) compressor lower support frame is provided with the positioning hole of location return tube, makes the fixing easier of return tube.
(3) stirring of the lubricant oil of the thin walled structures bottom oil sump that can prevent down current from causing, suppresses oil to raise up, reduces compressor oil drainage rate.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a weldment, is characterized in that, comprising:
Central part (10);
Support arm (20), is arranged on the periphery of described central part (10), and stretches out along described central part (10);
Circular radiating body (31), is arranged on the side away from described central part (10) of described support arm (20), and is supported on the periphery of described central part (10) by described support arm (20);
Weld part (40), is arranged on described circular radiating body (31).
2. weldment according to claim 1, it is characterized in that, described support arm (20) is for multiple, described circular radiating body (31) is divided into multiple radiating segment by multiple described support arm (20), adjacent two described support arms (20), is positioned at radiating segment between adjacent two described support arms (20) and described central part (10) forms heat-dissipating space (60).
3. according to claim 1 weldment, it is characterized in that, described weld part (40) comprises the first welding hole (41), and described first welding hole (41) is arranged on described circular radiating body (31), and away from the position that described circular radiating body (31) and described support arm (20) contact.
4. weldment according to claim 3, it is characterized in that, described first welding hole (41) is arranged on the outside of described circular radiating body (31), and the inner side relative with described first welding hole (41) of described circular radiating body (31) is provided with projection (32).
5. weldment according to claim 1, is characterized in that, described weld part (40) also comprises welding step (43), and described welding step (43) is arranged on the periphery of described circular radiating body (31).
6. weldment according to claim 1, it is characterized in that, described circular radiating body (31) also comprises multiple straightway (34) and the arc section (35) being connected adjacent two described straightways (34), described support arm (20) is positioned on described straightway (34) with the link position of described circular radiating body (31), described arc section (35) offers the second welding hole (42).
7. weldment according to claim 1, is characterized in that, described support arm (20) is three or four, and three or four described support arms (20) are evenly distributed on the periphery of described central part (10).
8. weldment according to any one of claim 1 to 7, is characterized in that, described weldment also comprises positioning hole (50), and described positioning hole (50) is arranged on the position that described support arm (20) contacts with described weld part (40).
9. weldment according to claim 2, is characterized in that, is provided with and described heat-dissipating space (60) is divided into bilevel thin walled structures (61), described thin walled structures (61) is provided with spill port (62) in described heat-dissipating space (60).
10. a compressor lower support frame, is characterized in that, the weldment of described compressor lower support frame according to any one of claim 1 to 9 is formed.
11. 1 kinds of compressors, comprise compressor lower support frame, and the weldment of described compressor lower support frame according to any one of claim 1 to 9 is formed, and bent axle (5) and the supplementary bearing (9A) of described compressor are arranged on the central part (10) of described weldment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310337988.6A CN104343688A (en) | 2013-08-05 | 2013-08-05 | Welding part, compressor lower bracket and compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310337988.6A CN104343688A (en) | 2013-08-05 | 2013-08-05 | Welding part, compressor lower bracket and compressor |
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| CN104343688A true CN104343688A (en) | 2015-02-11 |
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| CN201310337988.6A Pending CN104343688A (en) | 2013-08-05 | 2013-08-05 | Welding part, compressor lower bracket and compressor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107191379A (en) * | 2017-07-03 | 2017-09-22 | 广东美的暖通设备有限公司 | Lower bearing bracket component and screw compressor for screw compressor |
| CN108019352A (en) * | 2016-10-28 | 2018-05-11 | 大金工业株式会社 | The welding method and compressor of compressor |
| CN112065715A (en) * | 2020-08-19 | 2020-12-11 | 广州万宝集团压缩机有限公司 | Scroll compressor and thermoregulation device |
| CN112833095A (en) * | 2021-01-04 | 2021-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing vibration reduction structure, compressor, air conditioning system, heat pump system and dehumidifier |
| CN113458642A (en) * | 2021-07-27 | 2021-10-01 | 松下压缩机(大连)有限公司 | Welding method of scroll compressor |
| CN116917620A (en) * | 2021-03-01 | 2023-10-20 | 大金工业株式会社 | Compressor and refrigeration cycle device |
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| CN108019352A (en) * | 2016-10-28 | 2018-05-11 | 大金工业株式会社 | The welding method and compressor of compressor |
| CN108019352B (en) * | 2016-10-28 | 2020-01-31 | 大金工业株式会社 | Welding method of compressor and compressor |
| CN107191379A (en) * | 2017-07-03 | 2017-09-22 | 广东美的暖通设备有限公司 | Lower bearing bracket component and screw compressor for screw compressor |
| CN112065715A (en) * | 2020-08-19 | 2020-12-11 | 广州万宝集团压缩机有限公司 | Scroll compressor and thermoregulation device |
| CN112833095A (en) * | 2021-01-04 | 2021-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing vibration reduction structure, compressor, air conditioning system, heat pump system and dehumidifier |
| CN116917620A (en) * | 2021-03-01 | 2023-10-20 | 大金工业株式会社 | Compressor and refrigeration cycle device |
| CN116917620B (en) * | 2021-03-01 | 2024-07-30 | 大金工业株式会社 | Compressor and refrigeration cycle device |
| US12085319B2 (en) | 2021-03-01 | 2024-09-10 | Daikin Industries, Ltd. | Compressor with welding pin connection |
| CN113458642A (en) * | 2021-07-27 | 2021-10-01 | 松下压缩机(大连)有限公司 | Welding method of scroll compressor |
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