CN207610445U - A kind of simple type oil eliminator for automotive air-conditioning system - Google Patents
A kind of simple type oil eliminator for automotive air-conditioning system Download PDFInfo
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- CN207610445U CN207610445U CN201721696161.4U CN201721696161U CN207610445U CN 207610445 U CN207610445 U CN 207610445U CN 201721696161 U CN201721696161 U CN 201721696161U CN 207610445 U CN207610445 U CN 207610445U
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Abstract
The utility model is related to a kind of simple type oil eliminators for automotive air-conditioning system, including point oily bend pipe, oil storage cavity；Oily bend pipe is divided to fasten the upper position in oil storage cavity in such a way that both ends are exposed, it is refrigerant inlet end and refrigerant exit end to divide the both ends of oily bend pipe, it is provided with a point hydraulic fluid port on the straight pipe being connected in point larger side cambered surface of the radius of curvature of oily bend pipe or with the side cambered surface end, hydraulic fluid port is divided to be located in oil storage cavity；It is equipped with oil-returning structure in the lower end of oil storage cavity, along oily outbound course, oil-returning structure is sequentially connected by throttle orifice, outage and oil return opening and is constituted, and outage is cross section gradually increased variable cross-section hole.This simple type oil eliminator is by gaseous coolant and liquid cryogenic machine oil during dividing oily curved Bottomhole pressure, under the action of weight and inertia, realize oily separation, oil is by dividing hydraulic fluid port to enter in oil storage cavity, and it is returned to by oil-returning structure in the compressor of air-conditioning system, it is smaller with product, it is simple in structure, the advantages of vibration resistance.
Description
Technical field
The utility model belongs to automobile air conditioning technology field, more particularly to a kind of simple type oil for automotive air-conditioning system
Separator.
Background technology
In automotive air-conditioning system, the oil content in refrigerant influences the exchange capability of heat of air-conditioning very big.Test result shows：
When oil content 3%, exchange capability of heat declines about 2%；When oil content 10%, exchange capability of heat declines about 16%；When oil content 15%, change
Thermal energy power declines about 28%.Currently, in the case that automotive air-conditioning system installs oil eliminator additional in place, oil content 10% or so,
Exchange capability of heat is set to have a greatly reduced quality；And after installing oil eliminator additional, it is ensured that oil content is less than 3%, can make the heat exchange of air-conditioning
Ability is dropped by less than 2%.
A point oily principle for the common oil eliminator of existing market mainly has following three kinds：
1, strainer point oil：Multistorey strainer mesh is placed on the path of refrigerant movement, is contained in the gaseous coolant of compressor discharge
Oil droplet encounter strainer and be retained down, reach the result of Oil-gas Separation.
2, inertia point oil：Because the density of liquid cryogenic machine oil is more than the density of gaseous coolant, therefore liquid cryogenic machine oil
Inertia be more than gaseous coolant inertia, when encounter block need change direction when, gaseous coolant change direction needed for power ratio
It is smaller, it is easy to change direction, and the power that liquid cryogenic machine oil changes direction needs is bigger, it is not easy to change direction；Another party
The viscosity of face liquid cryogenic machine oil is more than gaseous coolant.Using the above characteristic, some baffles are done, refrigerant is made to do curvilinear motion, liquid
State refrigerant collides due to not allowing malleable direction with baffle, is retained down in addition viscosity is larger, thus by gaseous coolant
It is detached with liquid cryogenic machine oil.
3, whirlwind point oil：The gaseous coolant for being mixed with liquid cryogenic machine oil is set to be revolved along the inner surface of cylinder in cylinder
Transhipment is dynamic, because the density of liquid cryogenic machine oil is more than the density of gaseous coolant, therefore while moving in a circle is required centripetal
Power is more than gaseous coolant, so in motion process, liquid refrigerants gradually close to the inner surface of cylinder, and gaseous coolant then with compared with
Minor radius moves in a circle, and is not contacted substantially with cylindrical inner wall, and because the viscosity of liquid cryogenic machine oil is larger, therefore along circle
The inner wall of column deposits, to detach liquid cryogenic machine oil with gaseous coolant.
There are mainly two types of oil return control modes common at present：
1, floating ball oil return controls
This structure is that there are one levers, one section of lever to connect a cone in shoe cream room, and cone is used for blocking
Or suitably open oil return opening, the other end of lever connects one floating ball, when oil level it is high when, floating ball rises, drive lever around
Fulcrum rotates, and the cone of the lever other end is mobile and opens oil return opening, and oil level is higher, and unlatching is bigger.This device generally compared with
It is used in big oil eliminator.The shortcomings that this oil eliminator, is that volume is big, and not vibration resistance.Therefore be not suitable in air conditioning for automobiles
It uses.
2, capillary oil return controls
This oil-returning structure is that a capillary suitably chooses capillary although this structure cannot adjust the size of oil return opening
The internal diameter of pipe can control recirculating oil quantity within the acceptable range.The disadvantage is that capillary is thinner, intensity is smaller, in car engine
Under the caused vibration of machine, fracture is easy tod produce.
Invention content
The utility model provides a kind of small volume to solve technical problem present in known technology, simple in structure,
Vibration resistance is suitble to the simple type oil eliminator for automotive air-conditioning system used in automotive air-conditioning system.
The utility model is adopted the technical scheme that solve technical problem present in known technology：
A kind of simple type oil eliminator for automotive air-conditioning system, it is characterised in that：Including point oily bend pipe, a shoe cream room
Body；Oily bend pipe is divided to install the upper position for being fixed on oil storage cavity in such a way that both ends are exposed, one end of point oily bend pipe is refrigerant
Input end, the other end are refrigerant exit end, in point larger side cambered surface of the radius of curvature of oily bend pipe or with side cambered surface end
It is provided with a point hydraulic fluid port on the connected straight pipe in end, it is described that hydraulic fluid port is divided to be located in oil storage cavity；It is provided in the lower end of oil storage cavity
Oil-returning structure, along oily outbound course, the oil-returning structure is sequentially connected by throttle orifice, outage and oil return opening and is constituted, described
Outage is cross section gradually increased variable cross-section hole.
Further：It is connected in point smaller side cambered surface of the radius of curvature of oily bend pipe or with the side cambered surface end straight
Gas returning port is provided on pipeline section, the gas returning port is located in oil storage cavity.
Further：Gas returning port is opened in 0~25mm of side cambered surface end that distance divides the radius of curvature of oily bend pipe smaller
On straight pipe in range.
Further：Hydraulic fluid port is divided to be opened in the 0~15mm of side cambered surface end that distance divides the radius of curvature of oily bend pipe larger
On straight pipe in range.
Further：The throttle orifice is cylindrical hole, a diameter of 0.2~φ of φ 0.6mm of throttle orifice, the length of throttle orifice
For 0~2mm.
Further：Described point of hydraulic fluid port is in circular hole.
Further：Described point of hydraulic fluid port is slotting structure, and the gear oil crimp being folded in pipe is formed in the oily side of meeting cracked.
Further：Position close to throttle orifice in oil storage cavity is equipped with filter screen.
Further：The angle of plane and horizontal plane where described point of oily bend pipe should be within the scope of 45 °~90 °, point oil
The upper end of bend pipe is refrigerant exit end, and the lower end of point oily bend pipe is refrigerant inlet end.
The utility model has the advantages and positive effects of：
This simple type oil eliminator, the gaseous coolant and liquid cryogenic machine of compressor discharge are used in automotive air-conditioning system
Oil is entered by refrigerant inlet end in point oily bend pipe, since the density of liquid cryogenic machine oil is more than the density of gaseous coolant, because
This is in the effect of gravity and inertia, the larger side of the radius of curvature of refrigerator oil close to bend pipe, when flowing to point hydraulic fluid port, due to used
Property so that refrigerator oil and gaseous coolant is generated centrifugal action, refrigerator oil and part gaseous coolant are together through dividing hydraulic fluid port to enter oil storage
Cavity.In oil storage cavity, due to the difference of density, gaseous coolant is upper, and in the case where gas returning port is arranged, part is extra
Gaseous coolant reenters a point oily bend pipe by gas returning port and flows to refrigerant exit end, into condenser；And refrigerator oil is due to density
The larger bottom for sinking to oil storage cavity, and by throttle orifice under the action of differential pressure, then through outage, returned finally by oil return opening
Return compressor.It is detached with gas coolant in this way, realizing oil, avoids a large amount of refrigerator oils and enter condenser and evaporator, shadow
Ring heat transfer effect.The advantages of this oil eliminator component parts is few, has small volume, simple in structure, vibration resistance, is particularly suitable for
It is used in automotive air-conditioning system.
Description of the drawings
Fig. 1 is the structural schematic diagram of the first embodiment of the utility model；
Fig. 2 is the structural schematic diagram of second of embodiment of the utility model；
Fig. 3 is the structural schematic diagram of the third embodiment of the utility model.
In figure：1a, point oily bend pipe；1-1a, refrigerant inlet end；1-2a, refrigerant exit end；1-3a, divide hydraulic fluid port；1-3-1a、
The oily crimp of gear；1-4a, gas returning port；2a, oil storage cavity；2-1a, chamber body part；2-2a, oil return export over-hang part；3a, section
Discharge orifice；4a, outage；5a, oil return opening；6a, filter screen；1b, point oily bend pipe；1-1b, refrigerant inlet end；1-2b, refrigerant exit
End；1-3b, divide hydraulic fluid port；1-4b, gas returning port；2b, oil storage cavity；3b, throttle orifice；4b, outage；5b, oil return opening；6b, filtering
Net；1c, point oily bend pipe；1-1c, refrigerant inlet end；1-2c, refrigerant exit end；1-3c, divide hydraulic fluid port；The oily crimp of 1-3-1c, gear；1-
4c, gas returning port；2c, oil storage cavity；3c, throttle orifice；4c, outage；5c, oil return opening；6c, filter screen.
Specific implementation mode
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing：
Embodiment one：
Refer to Fig. 1, a kind of simple type oil eliminator for automotive air-conditioning system, including point oily bend pipe 1a, shoe cream room
Body 2a.Described point of oily bend pipe is to be made of the circular arc type bend loss of two straight pipes of two straight pipes and connection.The oil storage cavity by
The cylindrical type or square-column-shaped chamber body part 2-1a that are uprightly arranged and the returning close to bottom in chamber body part side is set
Oil output over-hang part 2-2a.Oily bend pipe is divided to install the upper position for being fixed on oil storage cavity in such a way that both ends are exposed, point oil is curved
The setting direction of pipe is preferred：The plane and horizontal plane at place are in the range of 45 °~90 °, preferably 90 °.Divide the one of oily bend pipe
End is refrigerant inlet end, and the other end is refrigerant exit end.Consider in terms of being easily installed connection and being divided to oily effect two, point oil
The lower end of bend pipe is preferably refrigerant inlet end 1-1a, and the upper end of point oily bend pipe is preferably refrigerant exit end 1-2a.It is curved in circular arc type
It is provided with a point hydraulic fluid port 1-3a, institute on the straight pipe being connected in the larger side cambered surface of radius of curvature or with the side cambered surface end on pipeline section
Point hydraulic fluid port is stated to be located in oil storage cavity.Above-mentioned cambered surface end refer to gaseous coolant and oil by after circular arc type bend loss with straight pipe
One end of linking.It is in the case that refrigerant inlet end upper end is refrigerant exit end in a point lower end for oily bend pipe, cambered surface end is arc
The upper end in face；And be in the case that refrigerant exit end upper end is refrigerant inlet end in a point lower end for oily bend pipe, cambered surface end is not
The lower end of cambered surface.The lower end of oil storage cavity is provided with oil-returning structure, along the direction of oil output, the oil-returning structure is by saving
Discharge orifice 3a, outage 4a and oil return opening 5a are sequentially connected composition, and the outage is cross section gradually increased variable cross-section hole.Its
The effect of middle throttle orifice is：Control oil return speed and the pressure difference of throttle orifice both sides.
In above-mentioned oil separator structure：In point smaller side cambered surface of the radius of curvature of oily bend pipe or with side cambered surface end
It is further provided with gas returning port 1-4a on the connected straight pipe in end, the gas returning port is located in oil storage cavity.The setting position of gas returning port
Setting to be less than with the static pressure of gas returning port position divides the static pressure of hydraulic fluid port position to be advisable.Gas returning port is set, can smoothly enter into convenient for gaseous coolant
It in oil storage cavity, is matched preferably with air-conditioning system in throttle orifice, can also be not provided with return-air hole, such energy consumption smaller.
Cambered surface end in this section equally refers to gaseous coolant and oily one end by being connected with straight pipe after circular arc type bend loss.
In above-mentioned oil separator structure：When gas returning port is opened on the straight pipe being connect with circular arc type bend loss end,
Gas returning port is further preferably opened within the scope of 0~25mm of side cambered surface end that distance divides the radius of curvature of oily bend pipe smaller
On straight pipe.
In above-mentioned oil separator structure：When dividing hydraulic fluid port to be opened on the straight pipe being connect with circular arc type bend loss end,
Hydraulic fluid port is divided further preferably to be opened within the scope of 0~15mm of side cambered surface end that distance divides the radius of curvature of oily bend pipe larger
On straight pipe.
In above-mentioned oil separator structure：The throttle orifice is cylindrical hole, a diameter of 0.2~φ of φ 0.6mm of throttle orifice, section
The length of discharge orifice is 0~2mm.
In above-mentioned oil separator structure：Hydraulic fluid port is divided preferably to use the following two kinds structure：
Structure one：Described point of hydraulic fluid port is in circular hole.
Structure two：Described point of hydraulic fluid port is slotting structure, and the gear oil crimp 1-3- being folded in pipe is formed in the oily side of meeting cracked
1a.The above-mentioned oily side of meeting cracked refers specifically to：Use lower end for refrigerant inlet end in a point oily bend pipe, upper end is the knot at refrigerant exit end
When structure, the oily side of meeting cracked refers to the upper avris to crack；And using upper end for refrigerant inlet end in a point oily bend pipe, lower end goes out for refrigerant
When the structure at mouth end, the oily side of meeting cracked refers to the lower avris to crack.
In above-mentioned oil separator structure：Position close to throttle orifice in oil storage cavity is equipped with filter screen 6a.It was arranged
The granule foreign contained in oil can be filtered out, improve the cleannes of oil return, considerably reduce the blocking of throttle orifice by strainer
Rate.
Embodiment two：
Fig. 2 is referred to, the present embodiment and the difference of embodiment one are：
Oil bend pipe 1b is divided to be made of circular arc type bend pipe, oil storage cavity 2b divides hydraulic fluid port 1-3b using the thin straight tube being obliquely installed
It being opened in the larger side cambered surface of radius of curvature, gas returning port 1-4b is opened on the smaller side arc surface of radius of curvature, by
The oil-returning structure that throttle orifice 3b, outage 4b and oil return opening 5b are constituted is set up directly on the lower end of oil storage cavity.
In addition to the above-mentioned feature different from embodiment one, other structures, such as refrigerant inlet end 1-1b and refrigerant exit end
The setting of 1-2b, the preferable shape for dividing hydraulic fluid port, the preferable shape of throttle orifice and dimensional parameters, filter screen setting etc. with implementation
Example one is identical, and details are not described herein.
Embodiment three：
Fig. 3 is referred to, the present embodiment and the difference of embodiment one are：
Oil storage cavity 2c uses the thin bend pipe knot that the curved bend pipeline section by two sections of straight pipes of two sections of straight pipes and connection is constituted
Structure, the oil-returning structure being made of throttle orifice 3c, outage 4c and oil return opening 5c are arranged in the straight pipe of lower part.
In addition to the above-mentioned feature different from embodiment one, other structures, for example divide the shape of oily bend pipe 1c, divide hydraulic fluid port 1-3c
Installation position, the installation position of gas returning port 1-4c, refrigerant inlet end 1-1c and refrigerant exit end 1-2c setting, divide hydraulic fluid port
Preferable shape, the preferable shape of throttle orifice and dimensional parameters, filter screen setting, divide on hydraulic fluid port the setting for keeping off oily crimp 1-3-1c
Deng identical as embodiment one, details are not described herein.
Oil storage cavity in above-described embodiment two and embodiment three uses capillary structure, compared to embodiment one, shoe cream room
Body can make the better cavity body structure of volume smaller, craftsmanship.
A point oily bend pipe in this oil eliminator is not limited to circular arc bend pipe structure in above three embodiments, as long as bend pipe
(such as Archimedes spiral) and it is provided with a point hydraulic fluid port, plays the role of detaching refrigerator oil, be the protection domain of this patent.
Oil-returning structure in this oil eliminator can be processed directly on oil storage cavity, and a component, group also can be individually made
It is assembled again with oil storage cavity after dress.
Claims (9)
1. a kind of simple type oil eliminator for automotive air-conditioning system, it is characterised in that：Including point oily bend pipe, an oil storage cavity；
Oily bend pipe is divided to install the upper position for being fixed on oil storage cavity in such a way that both ends are exposed, one end of point oily bend pipe is refrigerant inlet
End, the other end are refrigerant exit end, in point larger side cambered surface of the radius of curvature of oily bend pipe or with the side cambered surface end phase
It is provided with a point hydraulic fluid port on straight pipe even, it is described that hydraulic fluid port is divided to be located in oil storage cavity；The lower end of oil storage cavity is provided with oil return
Structure, along oily outbound course, the oil-returning structure is sequentially connected by throttle orifice, outage and oil return opening and is constituted, the oil extraction
Hole is cross section gradually increased variable cross-section hole.
2. the simple type oil eliminator according to claim 1 for automotive air-conditioning system, it is characterised in that：It is curved in point oil
It is provided with gas returning port, the return-air on the straight pipe being connected in the smaller side cambered surface of the radius of curvature of pipe or with the side cambered surface end
Mouth is located in oil storage cavity.
3. the simple type oil eliminator according to claim 2 for automotive air-conditioning system, it is characterised in that：Gas returning port is opened
It is located on the straight pipe within the scope of 0~25mm of side cambered surface end that distance divides the radius of curvature of oily bend pipe smaller.
4. the simple type oil eliminator according to claim 1 for automotive air-conditioning system, it is characterised in that：Hydraulic fluid port is divided to open
It is located on the straight pipe within the scope of 0~15mm of side cambered surface end that distance divides the radius of curvature of oily bend pipe larger.
5. the simple type oil eliminator according to claim 1 for automotive air-conditioning system, it is characterised in that：The throttling
Hole is cylindrical hole, and the length of a diameter of 0.2~φ of φ 0.6mm of throttle orifice, throttle orifice are 0~2mm.
6. the simple type oil eliminator according to claim 1 for automotive air-conditioning system, it is characterised in that：Described point of oil
Mouth is in circular hole.
7. the simple type oil eliminator according to claim 1 for automotive air-conditioning system, it is characterised in that：Described point of oil
Mouth is slotting structure, and the gear oil crimp being folded in point oily bend pipe is formed in the oily side of meeting cracked.
8. the simple type oil eliminator according to claim 1 for automotive air-conditioning system, it is characterised in that：In shoe cream room
Filter screen is installed close to the position of throttle orifice in vivo.
9. the simple type oil eliminator according to claim 1 for automotive air-conditioning system, it is characterised in that：Described point of oil
The angle of plane and horizontal plane where bend pipe should be within the scope of 45 °~90 °, and the upper end of point oily bend pipe is refrigerant exit end, point
The lower end of oily bend pipe is refrigerant inlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696161.4U CN207610445U (en) | 2017-12-08 | 2017-12-08 | A kind of simple type oil eliminator for automotive air-conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696161.4U CN207610445U (en) | 2017-12-08 | 2017-12-08 | A kind of simple type oil eliminator for automotive air-conditioning system |
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| CN207610445U true CN207610445U (en) | 2018-07-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050738A (en) * | 2017-12-08 | 2018-05-18 | 天津三电汽车空调有限公司 | A kind of simple type oil eliminator for automotive air-conditioning system |
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2017
- 2017-12-08 CN CN201721696161.4U patent/CN207610445U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050738A (en) * | 2017-12-08 | 2018-05-18 | 天津三电汽车空调有限公司 | A kind of simple type oil eliminator for automotive air-conditioning system |
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