CN205207190U - Keep off oil cover and have said scroll compressor who keeps off oil cover - Google Patents
Keep off oil cover and have said scroll compressor who keeps off oil cover Download PDFInfo
- Publication number
- CN205207190U CN205207190U CN201521071188.5U CN201521071188U CN205207190U CN 205207190 U CN205207190 U CN 205207190U CN 201521071188 U CN201521071188 U CN 201521071188U CN 205207190 U CN205207190 U CN 205207190U
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- China
- Prior art keywords
- clamping part
- oil blocking
- blocking cover
- cover
- cylinder section
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Abstract
The utility model discloses first aspect provides one kind and keeps off the oil cover, including barrel portion and clamping part, wherein, the clamping part is in with the ring -type setting the one end of barrel portion, the clamping part includes the edge outside ring, the edge of extending of barrel portion one end the periphery of ring is even set up from the outside bellied flute profile claw structure of ring outer peripheral face, flute profile claw structure is flexible construction. The utility model discloses on the other hand provides a scroll compressor, including upper bracket bearing apron, main balancing piece, still include as above any one keep off the oil cover, wherein, main balancing piece holds keep off in the barrel portion of oil cover, the clamping part buckle that keeps off the oil cover is in the lower extreme of upper bracket bearing apron. The utility model provides a keep off oil cover structure and can effectively improve the firm nature of keeping off oily cover and support or bracket bearing cover connection, can also improve and keep off oil cover assembly efficiency, reduce component assembly quantity, reduced manufacturing cost to a certain extent.
Description
Technical field
The utility model relates to a kind of oil blocking cover, particularly relates to a kind of scroll compressor with described oil blocking cover, belongs to compressor apparatus technical field.
Background technique
Within air-conditioning systems, compressor oil shortage ratio is large, after too much refrigeration oil enters refrigeration system with refrigerant, can make the long-pending oil of system and reduce cooling system or heating performance.Compressor oil shortage ratio problem is must strictly the technical problem of control in compressor is produced.In order to solve compressor oil shortage ratio high problem, some prior aries have all carried out the optimal design of dependency structure to scroll compressor on component, gas circuit and oil circuit.Such as, in the scroll compressor sample that the brands such as paddy wheel, great Jin provide, main equilibrium block adds an equilibrium block oil blocking cover, to suppress main equilibrium block in axle system movement process, the refrigerant in housing and oil gas are produced to disturbance and strengthen compressor oil shortage ratio.This oil blocking cover structure offers screw hole usually, adopts screw to be fastenedly connected fixing by main equilibrium block and oil blocking cover.Being such as in the patent documentation of CN201010193463.6 at number of patent application, being connected with adopting screw between oil blocking cover shown in the drawings of main equilibrium block at it.The main equilibrium block of many scroll compressors all adopts screw to be connected fastening assembly technology with fastening between oil blocking cover.
But, adopt screw to connect and there is certain problem.Such as, in production line batch production, if when screw exists the situation of not tightening, screw can get loose because of the vibration of compressor operation generation, drops in the enameled cable line bag of compression motor, causes enameled cable to strike sparks, and then motor is sintered, compressor operation produces fault.Some oil blocking cover screw for assemble from bottom to top, screw incomplete fastening time, vibration gets loose to fall on motor and causes the hidden danger of compressor fault larger.Airtight compressor cavity inner body adopts screw to be linked and packed, and really occurs causing the situation of motor sparking, compressor operation fault because screw gets loose in concrete practice.Adopt screw fastening to be connected between compressor inner body, particularly oil blocking cover with main equilibrium block, certain potential safety hazard is existed to compressor, therefore there is the space of improvement.
Model utility content
The purpose of this utility model is to provide a kind of oil blocking cover and has the scroll compressor of described oil blocking cover, with screw in solving the inner oil blocking cover of scroll compressor and adopting screw to be connected between main equilibrium block compressor operation is vibrated easily loosening dropping cause motor to strike sparks or cause the potential problem of compressor operation fault.
For this purpose, the utility model is by the following technical solutions:
The utility model first aspect provides a kind of oil blocking cover, comprises cylinder section and clamping part, wherein,
Described clamping part is arranged on one end of described cylinder section with ring-type;
Described clamping part comprises along the outward extending ring in described cylinder section one end, the flute profile pawl structure from described ring outer circumferential face outwardly convex that evenly arranges along the periphery of described ring; Described flute profile pawl structure is flexible structure.
Preferably, described flute profile pawl comprises the first straightway, the second straightway and arc section, and described arc section is connected between the first straightway and the second straightway, makes to form several angle between described first straightway and described second straightway.
Preferably, the quantity of described flute profile pawl is 4 to 16.
Preferably, described oil blocking cover is the thin sheet metal part of integral type.
Preferably, the internal diameter of described clamping part is identical with the internal diameter of described cylinder section, and the external diameter of described clamping part is greater than the external diameter of described cylinder section.
Or preferably, the internal diameter of described clamping part is less than the internal diameter of described cylinder section, the external diameter of described clamping part is less than the external diameter of described cylinder section.
The utility model provides a kind of scroll compressor on the other hand, comprises upper bracket bearing cover, main equilibrium block, also comprises any one oil blocking cover as above, wherein,
Described main equilibrium block is contained in the cylinder section of described oil blocking cover;
The clamping part of described oil blocking cover is buckled in the lower end of described upper bracket bearing cover.
Preferably, described upper bracket bearing cover lower end forms annular boss, inside described annular boss, be provided with annular groove.
Preferably, described annular groove is suitable for the clamping part of described oil blocking cover being snapped under pressure and being fastened in described groove.
Preferably, the cross section of described groove is triangle.
The oil blocking cover structure that the utility model provides can effectively solve the problem, and improve the fixing that oil blocking cover is connected with support or bracket bearing cover plate, oil blocking cover efficiency of assembling can also be improved, reduce Assembly of the parts quantity, reduce cost of production to a certain extent.
Accompanying drawing explanation
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is the generalized section of the scroll compressor described in the utility model embodiment.
Fig. 2 is the schematic perspective view of the oil blocking cover described in one of the utility model embodiment.
Fig. 3 is that the described oil blocking cover of one of the utility model embodiment and upper bracket bearing cover assemble and decompose enlarged diagram.
Fig. 4 is that the oil blocking cover described in one of the utility model embodiment press-fits stress deformation schematic diagram.
Fig. 5 is that the oil blocking cover described in one of the utility model embodiment press-fits rear flute profile pawl cooperation place enlarged diagram.
Fig. 6 is the schematic perspective view of the oil blocking cover described in two of the utility model embodiment.
Fig. 7 is the assembling of the oil blocking cover described in two enlarged diagram of the utility model embodiment.
Embodiment
Below preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
The oil blocking cover that the utility model preferred embodiment provides can be used in the scroll compressor of air-conditioning system.As shown in Figure 1, scroll compressor comprises closed shell, is provided with the parts such as fixed scroll, orbiter, anti-rotation cross slip-ring, upper bracket, lower support frame, bent axle, motor, main equilibrium block 3, oil blocking cover 1 in closed shell.In side, upper bracket direction, the interference of main equilibrium block 3 is fitted on bent axle.Upper bracket bearing hole end face is provided with upper bracket bearing cover 2.Open Side Down for oil blocking cover shell portion, and main equilibrium block is fully enclosed in cylindrical shell.
Oil blocking cover embodiment one
As described in Figure 2, the oil blocking cover 1 that one of the utility model embodiment provides comprises cylinder section 1a and clamping part 1b generally.In order to illustrate conveniently, oil blocking cover 1 illustrates in axial substantially horizontal, but in actual use, oil blocking cover can be axially vertical placement.Particularly, clamping part 1b clamping part is arranged on one end of described cylinder section 1a with ring-type.Preferably, clamping part 1b comprises along the outward extending ring in described cylinder section one end, the flute profile pawl structure from described ring outer circumferential face outwardly convex that evenly arranges along the periphery of described ring, and described flute profile pawl structure is that flexible structure or described flute profile pawl structure are made up of micro-elasticity material.
Flute profile pawl structure comprises the first straightway, the second straightway and arc section, arc section is connected between the first straightway and the second straightway, make to form several angle between the first straightway and the second straightway, and then make the second straightway can carry out certain elastic movement relative to the first straightway.
As shown in Figure 3, in the present embodiment, the internal diameter of preference card buckle portion is identical with the internal diameter of cylinder section, is d1, and the outside diameter d of clamping part is greater than the external diameter of described cylinder section.
As shown in FIG. 1, when in the closed shell that oil blocking cover is assemblied in scroll compressor, main equilibrium block 3 is contained in the cylinder section of oil blocking cover 1; The clamping part of oil blocking cover 1 is buckled in the lower end of upper bracket bearing cover 2.
In order to enable oil blocking cover be engaged between equilibrium block and upper bracket bearing cover better, as shown in Fig. 3, Fig. 4, Fig. 5, the lower end of upper bracket bearing cover 2 forms annular boss, is provided with annular groove 2a inside annular boss.Described annular groove is suitable for the clamping part of described oil blocking cover being snapped under pressure and being fastened in described groove.Preferably, the cross section of described groove 2a is designed to triangle, has the first limit and Second Edge.As shown in Figure 7, be greater than the diameter D1 of the circle formed by another end points on the first limit by the connect diameter D of circle that end points formed of the first limit and Second Edge, be less than the diameter D2 of the circle formed by another end points of Second Edge.Meanwhile, the outside diameter d of clamping part should be greater than the first limit and Second Edge and to connect the diameter D1 of circle that end points formed.
Preferably, oil blocking cover flute profile pawl size d and annular groove dimension D, D2 at D=d-(1 ~ 1.3mm), time within the scope of D2=d+ (0.1 ~ 0.15) dmm, easily assembling and connect firm, oil blocking cover and can not produce noise because loosening.
As shown in Figure 4, when press-fiting, under the acting in conjunction of pressure assembling force F and upper bracket bearing cover sidewall directed force F 1, the flute profile pawl 1b of oil blocking cover 1 can be stressed, produce hettocyrtosis distortion from dotted line position P1 to center and reach position P, so that flute profile pawl 1b can enter in the groove 2a of bearing cover 2 smoothly.For keeping original flute profile state, stressed bending after flute profile grippers have the spring-back force of self-recovery original appearance, as shown in Figure 4, under the effect of this spring-back force, make flute profile pawl be fitted on the groove 2a wall of the triangle of bearing cover tightly, namely the tension force of flute profile pawl is relied on to realize fastening assembling, and the limited impression 2a of upper bracket bearing cover carries out spacing to flute profile pawl 1b, ensure that oil blocking cover 1 does not get loose, safe and reliable.
Oil blocking cover embodiment two
As shown in figures 6 and 7, the utility model embodiment's two oil blocking covers provided 1 also comprise cylinder section 1a and clamping part 1b generally.But different from embodiment one, the internal diameter of described clamping part 1b is less than the internal diameter of described cylinder section 1a, and the external diameter 1b of described clamping part is also less than the external diameter of described cylinder section 1a.In order to illustrate conveniently, oil blocking cover 1 also axial substantially horizontal illustrates, but in actual use, oil blocking cover can be axially vertical placement.
When the oil blocking cover that embodiment two provides is in the closed shell being assembled to scroll compressor, main equilibrium block 3 is contained in the cylinder section of oil blocking cover 1; The clamping part of oil blocking cover 1 is buckled in the lower end of upper bracket bearing cover 2.
Identical described in the cooperation of the annular groove on upper bracket bearing cover 2 and clamping part and above-described embodiment one, repeat no more.
In addition, in the above two embodiments, preferably, the quantity of flute profile pawl is 4 to 16.More preferably, the quantity of flute profile pawl is 12 as shown in Figure 2.Preferably, oil blocking cover is the sheet metal part that integral type is thin, and by impact briquetting, thickness is 0.15 ~ 0.3mm about.
Compared with existing structure, the utility model has the following advantages:
1) adopt flute profile pawl to coordinate with annular groove, by mechanical tension force and annular groove spacing fastening, fastening without the need to screw connection, this assembly technology is simple, efficiency is high, safe and reliable.The potential problem adopting screw to connect fastening existence can be solved
2) the direct impact briquetting of panel beating thin pieces oil blocking cover, structure is simple, press-fits convenience, cost is low.
3) processing of support annular oil groove adopts common turnery processing to realize, and lower than processing screw hole precision, reduces machining accuracy and cost requirement.
4) part usage quantity is decreased.
Technology contents of the present utility model and technical characteristics have disclosed as above; but those of ordinary skill in the art still may do all replacement and the modification that do not deviate from the utility model spirit based on teaching of the present utility model and announcement; therefore; the utility model protection domain should be not limited to the content that embodiment discloses; and various do not deviate from replacement of the present utility model and modification should be comprised, and contained by the utility model claim.
Claims (10)
1. an oil blocking cover, is characterized in that, comprises cylinder section and clamping part, wherein,
Described clamping part is arranged on one end of described cylinder section with ring-type;
Described clamping part comprises along the outward extending ring in described cylinder section one end, the flute profile pawl structure from described ring outer circumferential face outwardly convex that evenly arranges along the periphery of described ring; Described flute profile pawl structure is flexible structure.
2. oil blocking cover as claimed in claim 1, it is characterized in that, described flute profile pawl comprises the first straightway, the second straightway and arc section, and described arc section is connected between the first straightway and the second straightway, makes to form several angle between described first straightway and described second straightway.
3. oil blocking cover as claimed in claim 2, it is characterized in that, the quantity of described flute profile pawl is 4 to 16.
4. oil blocking cover as claimed in claim 3, it is characterized in that, described oil blocking cover is the thin sheet metal part of integral type.
5. oil blocking cover as claimed in claim 4, it is characterized in that, the internal diameter of described clamping part is identical with the internal diameter of described cylinder section, and the external diameter of described clamping part is greater than the external diameter of described cylinder section.
6. oil blocking cover as claimed in claim 4, it is characterized in that, the internal diameter of described clamping part is less than the internal diameter of described cylinder section, and the external diameter of described clamping part is less than the external diameter of described cylinder section.
7. a scroll compressor, comprises upper bracket bearing cover, main equilibrium block, it is characterized in that, also comprise the oil blocking cover according to any one of claim 1-6, wherein,
Described main equilibrium block is contained in the cylinder section of described oil blocking cover;
The clamping part of described oil blocking cover is buckled in the lower end of described upper bracket bearing cover.
8. scroll compressor as claimed in claim 7, is characterized in that, described upper bracket bearing cover lower end forms annular boss, inside described annular boss, be provided with annular groove.
9. scroll compressor as claimed in claim 8, it is characterized in that, described annular groove is suitable for the clamping part of described oil blocking cover being snapped under pressure and being fastened in described groove.
10. scroll compressor as claimed in claim 9, it is characterized in that, the cross section of described groove is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521071188.5U CN205207190U (en) | 2015-12-18 | 2015-12-18 | Keep off oil cover and have said scroll compressor who keeps off oil cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521071188.5U CN205207190U (en) | 2015-12-18 | 2015-12-18 | Keep off oil cover and have said scroll compressor who keeps off oil cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207190U true CN205207190U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521071188.5U Expired - Fee Related CN205207190U (en) | 2015-12-18 | 2015-12-18 | Keep off oil cover and have said scroll compressor who keeps off oil cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402134A (en) * | 2015-12-18 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil-proofing cover and scroll compressor comprising same |
-
2015
- 2015-12-18 CN CN201521071188.5U patent/CN205207190U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402134A (en) * | 2015-12-18 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil-proofing cover and scroll compressor comprising same |
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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 |
Granted publication date: 20160504 Termination date: 20211218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |