CN203394761U - Weld assembly, lower bracket of compressor and compressor - Google Patents
Weld assembly, lower bracket of compressor and compressor Download PDFInfo
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- CN203394761U CN203394761U CN201320475665.9U CN201320475665U CN203394761U CN 203394761 U CN203394761 U CN 203394761U CN 201320475665 U CN201320475665 U CN 201320475665U CN 203394761 U CN203394761 U CN 203394761U
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- weldment
- support arm
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Abstract
The utility model provides a weld assembly, a lower bracket of a compressor, and a compressor. The weld assembly comprises a center section, a support arm, an annular radiator and a welding section, wherein the support arm is arranged at the periphery of the center section and extends outwards along the center section; the annular radiator is arranged at one side of the support arm, far away from the center section, and is supported at the periphery of the center section through the support arm; the welding section is arranged on the annular radiator. According to the weld assembly, the lower bracket and the compressor, the heat generated in a welding process firstly passes through the annular radiator, then is transmitted to the support arm, and finally reaches the center section when the weld assembly is welded and fixed on other structures; the heat generated in the welding process is continuously reduced after passing through the annular radiator and the support arm, so that the heat which is finally transmitted to the center section is reduced. Thus, the structure arranged at the center section is prevented from deforming.
Description
Technical field
The utility model relates to compressor field, more specifically, relates to a kind of weldment, compressor lower support frame and compressor.
Background technique
Scroll compressor is because its efficiency is high, volume is little, quality is light, in the fields such as being widely used in refrigeration and air-conditioning and heat pump of operating steadily.In general, scroll compressor consists 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 installations, they axially can contact (on cross section, being several somes contacts) on several straight lines in theory, touch with relative vortex body bottom connection the end of vortex body molded line, so formed a series of crescent-shaped spaces, i.e. element volume between dynamic and static scroll.At orbiter, take the center of fixed scroll while doing the revolution translation without rotation as rotating center and 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 dwindles and pressure constantly raises, until communicate with central row pore, high pressure refrigerant is discharged from the pump housing.
In scroll compressor, supporting frame consists of upper bracket, lower support frame, and described lower support frame is a kind of weldment, together with upper bracket, bearing is colded pressing in compressor.Supporting frame plays and supports and balanced action the axle system of the compositions such as rotor, bent axle, equilibrium block, the bearing of upper bracket, lower support frame coordinates with the axle journal of bent axle, make center line of shafting maintain Vertical direction and overlap with housing center line, now, crankshaft journal and bearing fit are even, rotor and stator gap are even, and compressor shaft system can keep good running state, and Overall Power Consumption is also minimum.
Shown in Fig. 1 and Fig. 2, in existing structure, lower support frame 100 devices are comprised of weld part, support arm, central part, support arm is " ten " word shape and distributes, and is connecting weld part and central part, during assembling, bearing is colded pressing in lower support frame 100 central parts, with frock, be set to crankshaft journal place again, then weld part and compressor housing be welded and fixed, complete lower support frame assembling.
In addition, in existing structure, also there is a kind of combined type lower support structure, by welding ring, bolt, central part, formed, during assembling, first welding ring is welded and fixed on housing, then with bolt, by colding pressing, has the central part of bearing to be fixed to above welding ring, complete lower support frame assembling.
But, all there is defect in above-mentioned lower support structure, the first structure is because weld part is directly connected by support arm with central part, and during welding, welding heat can be delivered to central part and bearing, because welding heating value is large, can cause that bearing produces distortion, bearing coordinates inhomogeneous with crankshaft journal, causes 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 when serious.The second lower support structure is quoted split-type structural, although the distortion of having avoided welding to cause, owing to using Split type bolt linkage structure, has increased part usage quantity, assembling also becomes more complicated, has increased cost and process complexity.
Model utility content
The utility model 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 that is arranged on central part.
For solving the problems of the technologies described above, according to Yi Ge of the present utility model aspect, provide a kind of weldment, this weldment comprises central part; Support arm, is arranged on the periphery of central part, and stretches out along central part; Circular radiating body, is arranged on the side away from central part of support arm, and by support arm, is supported on the periphery of central part; Weld part, is arranged on circular radiating body.
Further, support arm is a plurality of, and a plurality of support arms are divided into a plurality of radiating segments by circular radiating body, and adjacent two support arms, the 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 the position contacting away from circular radiating body and support arm.
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 a plurality of straightways and the arc section that is connected adjacent two straightways, and the link position of support arm and circular radiating body is positioned on straightway, offers the second welding hole on arc section.
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, in heat-dissipating space, be provided with heat-dissipating space is divided into bilevel thin walled structures, on thin walled structures, be provided with spill port.
According on the other hand of the present utility model, a kind of compressor lower support frame is provided, this compressor lower support frame consists of above-mentioned weldment.
According to of the present utility model, provide a kind of compressor more on the one hand, this compressor comprises compressor lower support frame, and this compressor lower support frame consists of above-mentioned weldment, and the bent axle of compressor and supplementary bearing are arranged on the central part of weldment.
According to embodiment of the present utility model, weldment comprises central part, support arm, circular radiating body and weld part.Wherein, support arm is arranged on the periphery of central part, and stretches out along central part; Circular radiating body is arranged on the side away from central part of support arm, and by support arm, is supported on the periphery of central part; Weld part is arranged on circular radiating body, and the effect by weld part is weldingly fixed on weldment in other structures.In this process, first the heat that welding produces passes through circular radiating body, then just can be passed to support arm, finally arrive central part, after circular radiating body and support arm, the heat that welding process produces constantly reduces, and the heat that is finally passed to central part is reduced, and then prevent from being arranged on the structure generation deformation at central part place.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the plan view of existing weldment;
Fig. 2 has schematically shown the sectional view of existing weldment;
Fig. 3 has schematically shown the sectional view of scroll compressor of the present utility model;
Fig. 4 has schematically shown the first embodiment's of weldment of the present utility model plan view;
Fig. 5 has schematically shown the first embodiment's of weldment of the present utility model sectional view;
Fig. 6 has schematically shown the second embodiment's of weldment of the present utility model plan view;
Fig. 7 has schematically shown the 3rd embodiment's of weldment of the present utility model plan view;
Fig. 8 has schematically shown the 4th embodiment's of weldment of the present utility model plan view;
Fig. 9 has schematically shown the 4th embodiment's of weldment of the present utility model sectional view;
Weldment and housing that Figure 10 has schematically shown the 4th embodiment of the present utility model weld partial sectional view afterwards;
Figure 11 has schematically shown the 5th embodiment's of scroll compressor of the present utility model plan view;
Figure 12 has schematically shown the 6th embodiment's of weldment of the present utility model plan view; And
Figure 13 has schematically shown the 6th embodiment's of weldment of the present utility model sectional view.
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, projection; 41, the first welding hole; 42, the second welding hole; 43, welding step; 34, straightway; 35, arc section; 50, positioning hole; 60, heat-dissipating space; 61, thin walled structures; 62, spill port; S2, bottom oil sump; S1, the residing space of motor.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Shown in Fig. 3, Fig. 4 and Fig. 5, according to the first embodiment of the present utility model, 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 stretches out along central part 10; Circular radiating body 31 is arranged on the side away from central part 10 of support arm 20, and by support arm 20, is supported on the periphery of central part 10; Weld part 40 is arranged on circular radiating body 31, effect by weld part 40 is weldingly fixed on weldment in other structure, in this process, first the heat that welding produces passes 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 that is finally passed to central part 10 is reduced, and then prevent from being arranged on the structure generation deformation at central part 10 places.
In a kind of embodiment of the present utility model, can utilize above-mentioned weldment to make the lower support frame 7 of compressor, now, the bent axle 5 of compressor is arranged in the mounting hole of offering in weldment central part 10, supplementary bearing 9A sets up on central part 10, when weldment being weldingly fixed on housing 1, first the heat that welding produces passes through circular radiating body 31, then just can be passed to support arm 20, finally arrive central part 10, after circular radiating body 31 and support arm 20, the heat that welding process produces constantly reduces, the heat that is finally passed to central part 10 is reduced, and then prevent that the bent axle 5 and the supplementary bearing 9A that are arranged on central part 10 places from thermal distortion occurring, avoid supplementary bearing 9A to coordinate various adverse effects inhomogeneous and that cause with bent axle 5 axle journals.
In the present embodiment, support arm 20 is a plurality of, a plurality of support arms 20 that circular radiating body 31 is arranged on central part 10 peripheries are divided into a plurality of radiating segments, and two adjacent support arms 20, radiating segment between adjacent two support arms 20 and central part 10 form heat-dissipating space 60, when weldment is made to compressor lower support frame 7, compressor lower support frame 7 is welded on housing 1, the heat now producing can distribute rapidly heat-dissipating space 60 is interior, thereby reduced the heat that is passed to central part 10, further effectively prevent the thermal distortion of bent axle 5 and the supplementary bearing 9A at central part 10 places.Consider the steadiness supporting, 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, and circular radiating body 31 is supported.
Specifically, weld part 40 comprises that the number of the first welding hole 41, the first welding holes 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, guarantee that the heat that welding process produces distributes as much as possible on circular radiating body 31, reduces the heat that is finally passed to central part 10 as much as possible.Preferably, the first welding hole 41 is positioned on the center line of two adjacent support arm 20 formed angles, now, the first welding hole 41 is longer to central part 10 distance, solder joint rapid heat dissipation while therefore welding, and the heat of supplementary bearing 9A that is delivered to central part 10 places is few, suppress the thermal distortion of supplementary bearing 9A, thereby the no-float that keeps main bearing 9B, the supplementary bearing 9A of compressor and the main journal 5B of bent axle 5 and countershaft neck 5A, the gap between stator 6, rotor 8 is even, maintains 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 places 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 the second embodiment of the present utility model, the structure of weldment and the first embodiment's is basically identical, difference is that the inner side relative with the first welding hole 41 of circular radiating body 31 is provided with projection 32, projection the 32 and first welding hole 41 is located along the same line, and has increased thickness and the volume of the material at the first welding hole 41 places.In when welding, suppressed, because the thickness of circular radiating body 31 is compared with little and may occur crackle when the welding, to cause the phenomenon of not prison welding.When the weldment that utilizes the present embodiment is during as the lower support frame 7 of compressor, can obtain and a kind ofly can reduce supplementary bearing 9A thermal distortion, can increase the firm welding that improves compressor lower support frame 7 minimum in the situation that at material again, reduced the manufacture cost of enterprise.
Shown in Figure 7, according to the 3rd embodiment of the present utility model, the structure of weldment and the first embodiment are basic identical, the weldment that utilizes the present embodiment is during 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 a plurality of straightways 34 and the arc section 35 that is 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, avoided the position that support arm 20 contacts with straightway 34, make the heat producing in welding process be passed to as few as possible central part 10, thereby inhibition is arranged on the thermal distortion of the structure at central part 10 places.
Shown in Fig. 8, Fig. 9 and Figure 10, according to the 4th embodiment of the present utility model, weldment structure and the first embodiment are basic identical, difference is, the first welding hole 41 is not set in the present embodiment, but the first welding hole 41 is arranged on instead to the welding step 43 of the periphery of circular radiating body 31, and welding step 43 is structure ringwise, and its external diameter is greater than the internal diameter of housing 1 but is less than the external diameter of housing 1.The assembly process of the lower support frame 7 using the weldment of the present embodiment as compressor is: first supplementary bearing 9A is colded pressing in lower support frame 7 central parts 10, then lower support frame 7 is put into housing 1 along the countershaft neck 5A of bent axle 5, make to weld the lower end surface overlap joint of step 43 upper-end surface and housing 1, simultaneously, compressor lower cover 11 is inserted in to circular radiating body 31, make the end face and welding step 43 lower end surface overlap joint of lower cover 11, 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 producing in the time of can preventing from welding is passed to rapidly the central part 10 of lower support frame 7.Finally, use boxing technology that housing 1, lower support frame 7, lower cover 11 are welded together, form weld seam, complete the fixing of lower support frame 7 and lower cover 11.In the present embodiment, owing to having increased welding step 43 at lower support frame 7, the welding of lower support frame 7 can be completed together with lower cover 11 welding, reduced the welding process of lower support frame 7, simplified the assembly technology of compressor.
Shown in Fig. 3 and Figure 11, according to the 5th embodiment of the present utility model, weldment and the first embodiment's mechanism is basic identical, difference is, the weldment of the present embodiment also comprises the positioning hole 50 for the return tube 4 of fixing compressor, and this positioning hole 50 is arranged on position that support arm 20 contacts with weld part 40 and along the axial perforation lower support frame 7 of bent axle 5.With the weldment of the present embodiment during as the lower support frame 7 of compressor, in assembly process, lower support frame 7 is inserted in housing 1 except the diameter of axle along bent axle 5, the bottom that positioning hole 50 is inserted in return tube 4 along the return tube 4 of being drawn by upper bracket 3 simultaneously, because the slightly larger in diameter of positioning hole 50 is in return tube 4 external diameters, therefore for the fixing of return tube 4 bottoms, will become more easy, reduce the use of return tube 4 fixed elements, reduce the manufacturing cost of enterprise.
Shown in Fig. 3, Figure 12 and 13, according to the 6th embodiment of the present utility model, the structure of weldment and the first embodiment's structure is basic identical, difference is, in heat-dissipating space 60, be provided with heat-dissipating space 60 be divided into up and down (here refer to up and down weldment horizontal positioned time upper and lower) two-layer thin walled structures 61, on thin walled structures 61, be provided with spill port 62.With the weldment of the present embodiment during as the lower support frame 7 of compressor, according to the first embodiment's assembly method, complete after the installation of lower support frame 7, existence due to thin walled structures 61, lower support frame 7 is separated the residing space S 1 of motor with bottom oil sump S2, now, when the mixed gas of discharging from compression chamber drops to compressor bottom, can direct collision arrive thin walled structures 61, refrigerant in mixed gas is discharged because baffling effect rises to exhaust outlet of compressor, prevent the stirring of the lubricant oil of the bottom oil sump S2 that down current causes, can suppress oil raises up, reduce compressor oil drainage rate.And lubricant oil in mixed gas is because effect of impact can directly be attached on thin walled structures 61, and get back in the oil sump S2 of bottom by spill port 62, realize oily circulation.Therefore, thin walled structures 61 has the effect identical with compressor oil baffle 12, adopts 7 of the lower support frames with thin walled structures 61 no longer to need mounting block oiled-plate method 12, has reduced compressor components use amount.
Refer again to shown in Fig. 3, according to the 7th embodiment of the present utility model, a kind of compressor is provided, comprise compressor lower support frame 7, upper bracket 3, bent axle 5 etc., the compressor lower support frame 7 that wherein compressor lower support frame 7 is above-mentioned arbitrary 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 being 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 that is passed to central part 10 is reduced, thereby prevent that the bent axle 5 and the supplementary bearing 9A that are arranged on central part 10 from thermal distortion occurring, avoid supplementary bearing 9A to coordinate various adverse effects inhomogeneous and that cause with bent axle 5 axle journals.The working principle that illustrates compressor is: main bearing 9B colds pressing and coordinates in upper bracket 3 and with the countershaft neck 5B of bent axle 5, supplementary bearing 9A colds pressing and coordinates in lower support frame 7 central parts 10 and with the main shaft diameter 5A of bent axle 5, upper bracket 3, lower support frame 7 complete the support radially to axle system by main bearing 9B, supplementary bearing 9A, the in the situation that of stator 6 energising, the running of rotor 8 band moving axis systems, thereby by bent axle 5 heads, drive orbiter 2 translations, that compression chamber is realized is air-breathing, the process of compression, exhaust.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
(1) the heat portion that welding process produces that is arranged so that of weldment circular radiating body distributes as much as possible, reduce the heat that is passed to central part, and then prevent from being arranged on the structure generation thermal distortion of central part, when during as the lower support frame of compressor, avoiding supplementary bearing to coordinate various adverse effects inhomogeneous and that cause with crankshaft journal with weldment.
(2) on compressor lower support frame, be provided with the positioning hole of location return tube, make the fixing easier of return tube.
(3) thin walled structures can prevent the stirring of the lubricant oil of the bottom oil sump that down current causes, suppresses oil and raises up, and reduces compressor oil drainage rate.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
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 by described support arm (20), is supported on the periphery of described central part (10);
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 a plurality of, a plurality of described support arms (20) are divided into a plurality of radiating segments by described circular radiating body (31), and adjacent two described support arms (20), the radiating segment and the described central part (10) that are positioned between adjacent two described support arms (20) form 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 it is upper that described the first welding hole (41) is arranged on described circular radiating body (31), and the position contacting away from described circular radiating body (31) and described support arm (20).
4. weldment according to claim 3, it is characterized in that, described the first welding hole (41) is arranged on the outside of described circular radiating body (31), and the inner side relative with described the 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 a plurality of straightways (34) and the arc section (35) that is connected adjacent two described straightways (34), described support arm (20) is positioned at described straightway (34) above with the link position of described circular radiating body (31), offers the second welding hole (42) on described arc section (35).
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. according to the weldment described in any one in claim 1 to 7, it 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, in described heat-dissipating space (60), is provided with described heat-dissipating space (60) is divided into bilevel thin walled structures (61), is provided with spill port (62) on described thin walled structures (61).
10. a compressor lower support frame, is characterized in that, described compressor lower support frame consists of the weldment described in any one in claim 1 to 9.
11. 1 kinds of compressors, comprise compressor lower support frame, and described compressor lower support frame is that in claim 1 to 9, the weldment described in any one forms, and the bent axle of described compressor (5) and supplementary bearing (9A) are arranged on the central part (10) of described weldment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475665.9U CN203394761U (en) | 2013-08-05 | 2013-08-05 | Weld assembly, lower bracket of compressor and compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475665.9U CN203394761U (en) | 2013-08-05 | 2013-08-05 | Weld assembly, lower bracket of compressor and compressor |
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| Publication Number | Publication Date |
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| CN203394761U true CN203394761U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320475665.9U Expired - Fee Related CN203394761U (en) | 2013-08-05 | 2013-08-05 | Weld assembly, lower bracket of compressor and compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343688A (en) * | 2013-08-05 | 2015-02-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Welding part, compressor lower bracket and compressor |
| CN105485017A (en) * | 2016-01-26 | 2016-04-13 | 广东美的暖通设备有限公司 | Mounting structure of thrust bearing and vortex-compressor |
| CN106351841A (en) * | 2016-11-24 | 2017-01-25 | 黄石艾博科技发展有限公司 | Reinforced inner support structure for refrigeration compressor |
| WO2020199583A1 (en) * | 2019-04-01 | 2020-10-08 | 艾默生环境优化技术(苏州)有限公司 | Compressor |
-
2013
- 2013-08-05 CN CN201320475665.9U patent/CN203394761U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343688A (en) * | 2013-08-05 | 2015-02-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Welding part, compressor lower bracket and compressor |
| CN105485017A (en) * | 2016-01-26 | 2016-04-13 | 广东美的暖通设备有限公司 | Mounting structure of thrust bearing and vortex-compressor |
| CN106351841A (en) * | 2016-11-24 | 2017-01-25 | 黄石艾博科技发展有限公司 | Reinforced inner support structure for refrigeration compressor |
| WO2020199583A1 (en) * | 2019-04-01 | 2020-10-08 | 艾默生环境优化技术(苏州)有限公司 | Compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 |