CN207111430U - Bent axle, rolling rotor-type micro-compressor and refrigeration system - Google Patents
Bent axle, rolling rotor-type micro-compressor and refrigeration system Download PDFInfo
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- CN207111430U CN207111430U CN201720688489.5U CN201720688489U CN207111430U CN 207111430 U CN207111430 U CN 207111430U CN 201720688489 U CN201720688489 U CN 201720688489U CN 207111430 U CN207111430 U CN 207111430U
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- eccentric part
- bent axle
- oil groove
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- eccentric
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Abstract
The utility model discloses a kind of bent axle, rolling rotor-type micro-compressor and refrigeration system.The bent axle includes：There is an eccentric block positioned at the eccentric part in long axle portion and the short axle portion at both ends, the connection long axle portion and the short axle portion, the eccentric part respectively；Wherein, there is axially extending oil-through-hole inside the bent axle, there is axially extending oil groove on the outer wall of the eccentric part, the eccentric part has the eccentric part oilhole radially extended for connecting the oil-through-hole and the oil groove, for the eccentric part on each section of the axial direction perpendicular to the eccentric part, the shape of the oil groove is identical；The depth C of the oil groove meets following condition： D1 is the external diameter of the eccentric block, and D2 is the aperture of the eccentric part oilhole.The tank structure pattern of above-mentioned bent axle is simple, easy to process, and eccentric part and piston effectively can be lubricated friction pair this.
Description
Technical field
Compressor Technology field is the utility model is related to, specifically, is related to a kind of bent axle, rolling rotor-type Mini compressed
Machine and refrigeration system.
Background technology
Micro-compressor is generally referred under ASHRAE/T1 operating modes, and nominal capacity is less than 1KW refrigeration compressor, micro-
Type compressor has the characteristics that small volume, in light weight, high power, low energy consumption, with small vibration, variable ratio frequency changer and easily controllable, extensively should
For portable refrigeration system, food cooling system, miniature refrigerating system, temperature control pig, electronic refrigerating system, medical treatment into
As in the systems such as system, mini cooling water system.
Compared with traditional huge discharge compressor, micro-compressor equally has multiple friction pairs, is run in micro-compressor
During, if these friction pairs can not effectively be lubricated, after long-play, the friction for causing micro-compressor is damaged
Consumption rise, friction pair are easy to frictionally damage occur, reduce the operational efficiency and compression efficiency of micro-compressor.It is therefore, miniature
Need also exist for setting oil groove to be lubricated friction pair in compressor.
Compared with traditional huge discharge compressor, the size of rolling rotor-type micro-compressor is small, and the eccentric part by bent axle is high
The limitation of degree and external diameter, the oil groove pattern of bent axle will cause to process according to the oil groove pattern of similar traditional huge discharge compressor
Difficulty significantly improves.But in order to improve the reliability of rolling rotor-type micro-compressor, the eccentric part position of bent axle still needs
Oil groove is set, so as to eccentric part and piston, this is lubricated to friction pair.
Utility model content
For problems of the prior art, the purpose of this utility model is that providing one kind is applied to rolling rotor-type
The bent axle of micro-compressor, the eccentric part of bent axle are provided with the oil groove passed through for lubricating oil, with to eccentric part and piston this to rubbing
Pair is wiped to be lubricated.
To achieve the above object, on the one hand, the utility model provides a kind of bent axle of rolling rotor-type micro-compressor, institute
Stating bent axle includes：Respectively positioned at the eccentric part in long axle portion and the short axle portion at both ends, the connection long axle portion and the short axle portion, institute
Stating eccentric part has an eccentric block；
Wherein, there is axially extending oil-through-hole inside the bent axle, have on the outer wall of the eccentric part axially extending
Oil groove, the eccentric part has the eccentric part oilhole radially extended for connecting the oil-through-hole and the oil groove, the bias
On each section of the axial direction perpendicular to the eccentric part, the shape of the oil groove is identical in portion；
The depth C of the oil groove meets following condition：
D1 is the external diameter of the eccentric block, and D2 is the aperture of the eccentric part oilhole.
In one embodiment, the outlet of the eccentric part oilhole is being hung down positioned at the bottom of the oil groove, the eccentric part
Directly on each section of the axial direction of the eccentric part, the bottom width W1 of the oil groove is more than or equal to eccentric part oil
The aperture D2 in hole.
In one embodiment, the top width W2 of the oil groove is more than or equal to the bottom width W1 of the oil groove.
In one embodiment, the bottom width W1 and top width W2 of the oil groove meet following condition：D2≤W1≤
1.618 × D2, W1≤W2≤(W1+2C).
In one embodiment, the bottom surface of the oil groove is the cambered surface of plane or depression.
In one embodiment, the oil groove extends to the outer wall of the eccentric part from the bottom of the outer wall of the eccentric part
Top.
On the other hand, the utility model provides a kind of rolling rotor-type micro-compressor, the miniature pressure of rolling rotor-type
Contracting machine includes above-mentioned bent axle.
In one embodiment, the rolling rotor-type micro-compressor also includes the pump housing；
The pump housing includes：
Cylinder, the cylinder have a cylinder chamber and the blade groove on cylinder chamber's inner peripheral surface, the bent axle it is inclined
Center portion is located in the cylinder chamber；
For closing the upper bearing (metal) and lower bearing of the cylinder chamber, at least part of the long axle portion of the bent axle is set in institute
State in the bearing hole of upper bearing (metal), at least part in the short axle portion of the bent axle is set in the bearing hole of the lower bearing；
Piston, the piston are located in the cylinder chamber, and the piston bush is outside the eccentric block of the bent axle；
Blade, the blade is prominent into the cylinder chamber out of described blade groove and is abutted with the piston, the leaf
The cylinder chamber is divided into high-pressure side and low-pressure side by piece.
In one embodiment, the rolling rotor-type micro-compressor also includes the electricity that revolving force is provided for the bent axle
Machine, the motor include stator and rotor.
Another further aspect, the utility model provide a kind of refrigeration system, and the refrigeration system includes：Condenser, evaporator, change
To valve and above-mentioned rolling rotor-type micro-compressor.
Compared with prior art, bent axle provided by the utility model, rolling rotor-type micro-compressor and refrigeration system be extremely
Have the advantages that less：Oil groove is provided with the outer wall of the eccentric part of bent axle of the present utility model, the tank structure pattern
Simply, it is easy to process, eccentric part and piston can be effectively lubricated friction pair this, be advantageous to improve rolling rotor-type
The reliability of micro-compressor.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature and advantage of the present utility model will
Become readily apparent from.
Fig. 1 is the schematic cross-section of the rolling rotor-type micro-compressor of the utility model embodiment.
Fig. 2 is the stereogram of the bent axle of the utility model embodiment.
Fig. 3 is the front view of the eccentric block of the bent axle of the utility model embodiment.
Fig. 4 is schematic cross-section of the eccentric block along AA lines in Fig. 3.
Fig. 5 is a kind of enlarged drawing of S portion in Fig. 4.
Fig. 6 is another enlarged drawing of S portion in Fig. 4.
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, these embodiments are provided so that this practicality is new
The design of example embodiment more comprehensively and completely, and is comprehensively communicated to those skilled in the art by type.It is identical in figure
Reference represent same or similar structure, thus repetition thereof will be omitted.
The word of expression position and direction described in the utility model, is the explanation carried out by taking accompanying drawing as an example, but root
According to needing to make a change, make change and be all contained in scope of protection of the utility model.
Fig. 1 is the schematic cross-section of the rolling rotor-type micro-compressor of the utility model embodiment, and Fig. 2 is that this practicality is new
The stereogram of the bent axle of type embodiment.Referring to Figures 1 and 2, the utility model provides a kind of rolling rotor-type micro-compressor,
The rolling rotor-type micro-compressor includes a bent axle 10 for being used to transmit revolving force.
Bent axle 10 includes long axle portion 11, short axle portion 13 and eccentric part 12.Long axle portion 11 and short axle portion 13 are located at bent axle respectively
10 both ends, eccentric part 12 connect long axle portion 11 and short axle portion 13 between long axle portion 11 and short axle portion 13, and eccentric part 12 has
There is an eccentric block 121.
The inside of bent axle 10 has axially extending oil-through-hole 14, and oil-through-hole 14 will be located at rolling rotor-type by pump oil mechanism
The lubricating oil of Mini compressed motor spindle oil sump is from bottom to top delivered to multiple friction pairs.Reference picture 4, in the present embodiment, oil-through-hole
14 be circular hole, in other embodiments, oil-through-hole 14 or other kinds of hole.
There is axially extending oil groove 122, eccentric part 12 has connection oil-through-hole 14 and oil groove on the outer wall of eccentric part 12
The 122 eccentric part oilhole 123 radially extended.Lubricating oil in oil-through-hole 14 flows into eccentric part 12 by eccentric part oilhole 123
Oil groove 122 in, in rolling rotor-type micro-compressor running, the lubricating oil in oil groove 122 flows to eccentric part
Between 12 eccentric block 121 and piston 24, realize to this lubrication to friction pair of eccentric block 121 and piston 24.It is preferred that oil groove
122 extend to the top of the outer wall of eccentric part 12 from the bottom of the outer wall of eccentric part 12, and the tank structure is advantageous to expand lubrication
The flow range of oil, improve to this lubricant effect to friction pair of eccentric block 121 and piston 24.
In the utility model, eccentric part 12 on each section of the axial direction perpendicular to eccentric part 12, oil groove 122
Shape is identical, and in other words, the oil groove 122 of eccentric part 12 is a straight trough.It is eccentric in traditional huge discharge rolling rotor compressor
The oil groove in portion is processed to obtain by wire rod quality, and therefore, eccentric part is in each section of the axial direction perpendicular to eccentric part
On, the shape of oil groove is different, and closer to the midpoint of eccentric part axial direction, the area of section of oil groove is bigger.For rolling
Turn minor micro-compressor, limited by the height of eccentric part 12 and external diameter of bent axle 10, will be led using existing oil groove pattern
Difficulty of processing is caused to significantly improve, tank structure pattern of the present utility model is simple, easy to process, is advantageous to improve rolling rotor-type
The reliability of micro-compressor.
In the utility model, the depth C of oil groove 122 meets following condition：
D1 is the external diameter of eccentric block 121, and D2 is the aperture of eccentric part oilhole 123.
Inventor it has been investigated that, the depth of oil groove 122When, what is processed is a plane,
Groove can not be formed,When, groove could be formed；2 × D2 of C ＜ can ensure the bottom of oil groove 122 and bent axle
10 oil-through-hole 14 keeps certain distance in radial directions, prevents the groove to be formed to be through to the oil-through-hole 14 of bent axle 10, on
State bent axle 10 of the tank structure especially suitable for rolling rotor-type micro-compressor.
In one embodiment, reference picture 3, Fig. 4 and Fig. 5, the outlet of eccentric part oilhole 123 are located at the bottom of oil groove 122,
On each section of the axial direction perpendicular to eccentric part 12, the bottom width W1 of oil groove 122 is more than or equal to partially eccentric part 12
The aperture D2 of center portion oilhole 123, the tank structure be advantageous to avoid interference with lubricating oil eccentric part oilhole 123 and oil groove 122 it
Between flowing, lubricating oil is more swimmingly flowed to oil groove 122 from eccentric part oilhole 123.Alternatively, the top of oil groove 122
Portion width W2 is more than or equal to the bottom width W1 of oil groove 122, and the tank structure is advantageous to lubricating oil and bias is flowed to from oil groove 122
The outer wall in portion 12, improve the lubricant effect of lubricating oil.
In one embodiment, the bottom width W1 and top width W2 of oil groove 122 meet following condition：D2≤W1≤
On the one hand 1.618 × D2, W1≤W2≤(W1+2C), the tank structure can ensure the smooth outflow of lubricating oil, another aspect side
Just processing oil groove 122.
Reference picture 5, in the present embodiment, the bottom surface of oil groove 122 is plane, bottom width W1 and the eccentric part oil of oil groove 122
The aperture D2 in hole 123 is roughly equal, and the midpoint at the midpoint and the bottom of oil groove 122 of eccentric part oilhole 123 substantially overlaps, eccentric part
The opening of oilhole 123 is substantially smooth to transit to oil groove 122.
Reference picture 6, in another embodiment, the bottom surface of oil groove 122 is the cambered surface of depression, the bottom width W1 of oil groove 122
Roughly equal with the aperture D2 of eccentric part oilhole 123, the midpoint of the midpoint of eccentric part oilhole 123 and the bottom of oil groove 122 is substantially
Overlap, the opening of eccentric part oilhole 123 is substantially smooth to transit to oil groove 122.
In other embodiments, the bottom surface of oil groove 122 can also be other shapes, the shape of preferably regular easy processing,
It is the shapes such as semicircle, triangle to include but is not limited to.
In one embodiment, reference picture 1, rolling rotor-type micro-compressor also include the pump housing, and the pump housing includes：Cylinder
21st, upper bearing (metal) 22, lower bearing 23, piston 24 and blade 25.
Cylinder 21 has cylinder chamber and the blade groove on cylinder chamber's inner peripheral surface, and the eccentric part 12 of bent axle 10 is located at cylinder
It is indoor.Upper bearing (metal) 22 and lower bearing 23 are engaged the opening of closing cylinder chamber, wherein, at least part of the long axle portion 11 of bent axle 10
It is set in the bearing hole of upper bearing (metal) 22, at least part in the short axle portion 13 of bent axle 10 is set in the bearing hole of lower bearing 23.
In the present embodiment, upper bearing (metal) 22 and lower bearing 23 are connected by least one screw 26 with the cylinder body of cylinder 21, in other implementations
In example, upper bearing (metal) 22 and lower bearing 23 can also be connected with cylinder 21 by other means.
Piston 24 is located in cylinder chamber, and piston 24 is sheathed on outside the eccentric block 121 of bent axle 10.Blade 25 out of blade groove to
Protrude in cylinder chamber and abutted with piston 24, cylinder chamber is divided into high-pressure side and low-pressure side by blade 25, in the rotation of bent axle 10
In the presence of power and eccentric block 121, piston 24 carries out eccentric rotary, by the cold of the refrigerant boil down to HTHP of low-temp low-pressure
Matchmaker, endoporus of the refrigerant of HTHP through the air gap between stator 31 and rotor 32 and rotor 32 flow to blast pipe 60.
Alternatively, blade 25 has blade body 251 and leaf spring 252, and blade body 251 abuts with piston 24, leaf
Flat spring 252 is placed in blade trench bottom, and during compressor operating, the elastic force of leaf spring 252 enables to blade sheet
The outer surface of body 251 and piston 24 is brought into close contact, guarantee there is good sealing effectiveness between the two, be effectively isolated high-pressure side with
Low-pressure side.
Alternatively, rolling rotor-type micro-compressor also includes the motor 30 that revolving force is provided for bent axle 10, the motor 30
Including stator 31 and rotor 32.In the present embodiment, stator 31 is located at outside rotor 32, and bent axle 10 is equipped with the endoporus of rotor 32
A part for long axle portion 11, in the presence of rotor 32, bent axle 10 rotates, and drives the eccentric block 121 of eccentric part 12 and be arranged
Piston 24 on eccentric block 121 carries out eccentric rotary.
Alternatively, rolling rotor-type micro-compressor also includes housing 40, and the pump housing, bent axle 10 and motor 30 are placed in housing
In 40.In the present embodiment, the pump housing is placed in the lower space of housing 40, and motor 30 is placed in the upper space of housing 40.It is optional
Ground, gas-liquid separator 50 is additionally provided with outside housing 40, for the liquid refrigerant and lubricating oil that prevent from not evaporating with low pressure
Refrigerant enters the pump housing through air inlet pipe, produces liquid hit phenomenon.Alternatively, blast pipe 60 and binding post 70 are additionally provided with housing 40.
The utility model also provides a kind of refrigeration system, and refrigeration system includes：Condenser, evaporator, reversal valve and above-mentioned
Rolling rotor-type micro-compressor, the refrigeration system includes but is not limited to be air conditioner and refrigerator.
To sum up, oil groove is provided with the outer wall of the eccentric part of bent axle of the present utility model, the tank structure pattern is simple, adds
Work is convenient, eccentric part and piston can be effectively lubricated friction pair this, be advantageous to the raising miniature pressure of rolling rotor-type
The reliability of contracting machine.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as not departing from the utility model to limitation of the present utility model, one of ordinary skill in the art
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.
Claims (10)
1. a kind of bent axle of rolling rotor-type micro-compressor, it is characterised in that the bent axle includes：It is located at the length at both ends respectively
Axle portion and short axle portion, the eccentric part for connecting the long axle portion and the short axle portion, the eccentric part have an eccentric block；
Wherein, there is axially extending oil-through-hole inside the bent axle, there is axially extending oil on the outer wall of the eccentric part
Groove, the eccentric part have the eccentric part oilhole radially extended for connecting the oil-through-hole and the oil groove, and the eccentric part exists
On each section of the axial direction of the eccentric part, the shape of the oil groove is identical；
The depth C of the oil groove meets following condition：
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D1 is the external diameter of the eccentric block, and D2 is the aperture of the eccentric part oilhole.
2. bent axle according to claim 1, it is characterised in that the outlet of the eccentric part oilhole is positioned at the bottom of the oil groove
Portion, for the eccentric part on each section of the axial direction perpendicular to the eccentric part, the bottom width W1 of the oil groove is big
In the aperture D2 equal to the eccentric part oilhole.
3. bent axle according to claim 2, it is characterised in that the top width W2 of the oil groove is more than or equal to the oil groove
Bottom width W1.
4. bent axle according to claim 1, it is characterised in that the bottom width W1 and top width W2 of the oil groove meet
Following condition：D2≤W1≤1.618 × D2, W1≤W2≤(W1+2C).
5. bent axle according to claim 1, it is characterised in that the bottom surface of the oil groove is the cambered surface of plane or depression.
6. bent axle according to claim 1, it is characterised in that the oil groove extends from the bottom of the outer wall of the eccentric part
To the top of the outer wall of the eccentric part.
7. a kind of rolling rotor-type micro-compressor, it is characterised in that the rolling rotor-type micro-compressor will including right
Seek the bent axle described in 1 to 6 any one.
8. rolling rotor-type micro-compressor according to claim 7, it is characterised in that the miniature pressure of rolling rotor-type
Contracting machine also includes the pump housing；
The pump housing includes：
Cylinder, the cylinder have cylinder chamber and the blade groove on cylinder chamber's inner peripheral surface, the eccentric part of the bent axle
In the cylinder chamber；
For closing the upper bearing (metal) and lower bearing of the cylinder chamber, at least part of the long axle portion of the bent axle is set on described
In the bearing hole of bearing, at least part in the short axle portion of the bent axle is set in the bearing hole of the lower bearing；
Piston, the piston are located in the cylinder chamber, and the piston bush is outside the eccentric block of the bent axle；
Blade, the blade is prominent into the cylinder chamber out of described blade groove and is abutted with the piston, and the blade will
The cylinder chamber is divided into high-pressure side and low-pressure side.
9. rolling rotor-type micro-compressor according to claim 7, it is characterised in that the miniature pressure of rolling rotor-type
Contracting machine also includes the motor that revolving force is provided for the bent axle, and the motor includes stator and rotor.
10. a kind of refrigeration system, it is characterised in that the refrigeration system includes：Condenser, evaporator, reversal valve and right will
Seek the rolling rotor-type micro-compressor described in 7 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688489.5U CN207111430U (en) | 2017-06-14 | 2017-06-14 | Bent axle, rolling rotor-type micro-compressor and refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688489.5U CN207111430U (en) | 2017-06-14 | 2017-06-14 | Bent axle, rolling rotor-type micro-compressor and refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111430U true CN207111430U (en) | 2018-03-16 |
Family
ID=61593439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720688489.5U Active CN207111430U (en) | 2017-06-14 | 2017-06-14 | Bent axle, rolling rotor-type micro-compressor and refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386353A (en) * | 2018-04-17 | 2018-08-10 | 珠海凌达压缩机有限公司 | Pump assembly and compressor and air conditioner |
| CN109441825A (en) * | 2018-12-12 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft and rotor-type compressor |
-
2017
- 2017-06-14 CN CN201720688489.5U patent/CN207111430U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386353A (en) * | 2018-04-17 | 2018-08-10 | 珠海凌达压缩机有限公司 | Pump assembly and compressor and air conditioner |
| CN109441825A (en) * | 2018-12-12 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft and rotor-type compressor |
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