CN205876661U - Compressor and air conditioner - Google Patents
Compressor and air conditioner Download PDFInfo
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- CN205876661U CN205876661U CN201620776650.XU CN201620776650U CN205876661U CN 205876661 U CN205876661 U CN 205876661U CN 201620776650 U CN201620776650 U CN 201620776650U CN 205876661 U CN205876661 U CN 205876661U
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Abstract
The utility model provides a compressor and air conditioner. Wherein the compressor includes: a temperature detecting element, the inside horizontal position of casing who sets up at the compressor, the minimum oil level parallel and level of permitting when a horizontal position and compressor normal operating, the 2nd temperature detecting element, casing the 2nd inside horizontal position who sets up at the compressor, the 2nd horizontal position's perpendicular distance exceeds a horizontal position default distance, the controller is connected with a temperature detecting element and the 2nd temperature detecting element for obtains the contrast temperature that warning temperature that a temperature detecting element detected and the 2nd temperature detecting element detected, calculate the first temperature difference of contrast temperature and warning temperature, and relatively it presets warm extent with first, and relatively go out a first temperature difference be lighter than first when presetting the difference in temperature, control compressor oil return. It can make things convenient for, whether accurate definite compressor lacks oil under each running state, avoids lacking the oil maloperation of oil return in time.
Description
Technical field
This utility model relates to air-conditioning technical field, particularly relates to a kind of compressor and air-conditioner.
Background technology
Refrigeration oil is the oil of the lubrication for each moving component of refrigeration compressor, is commonly called as lubricating oil.Will the most in the running
Must assure that certain fuel head ability fuel feeding is to each moving component, it is to avoid each moving component rubs and damages, and works as pressure
The refrigeration oil of contracting motor spindle is seldom or during oil-free, and each moving component of compressor easily occurs abnormal to rub and damage, and oil starvation is
Compressor produces the one of the main reasons of fault at present.
At present, the oil starvation protection of compressor only relies only on the oil return operation of air-conditioner refrigerating system.And at actual motion
In, according to the accumulated running time of compressor, compressor being carried out oil return operation, this method has some limitations, may
There will be compressor and have the maloperation of oil but oil return, cause compressor raising frequency repeatedly or frequency reducing to cause fluctuations in indoor temperature big, relax
Adaptive is substantially reduced, and there is also owing to compressor accumulated running time is inadequate simultaneously, and compressor reality oil starvation can not
Returning oil condition in time, cause compressor each parts inordinate wear because of oil starvation, reliability is substantially reduced.
Utility model content
In consideration of it, be necessary can not accurately determine that the compressor oil starvation whether oil starvation causes can not be timely for conventional art
The problem of oil return, it is provided that a kind of compressor and air-conditioner, it is possible to determine compressor whether oil starvation accurately, it is to avoid oil starvation is not in time
The maloperation of oil return.
For reaching utility model purpose, it is provided that a kind of compressor, including:
First detector unit, is arranged on the first horizontal level of the enclosure interior of described compressor, described first water
The minimum pasta allowed when mean place is properly functioning with described compressor is concordant；
Second detector unit, is arranged on the second horizontal level of the enclosure interior of described compressor, described second water
The vertical dimension of mean place exceeds described first horizontal level predeterminable range；
Controller, is connected with described first detector unit and described second detector unit, for acquisition first
The warning temperature of detector unit detection and the controlled temperature of described second detector unit detection, calculate described comparison temperature
Degree and the difference of described warning temperature, obtain the first temperature gap, and relatively described first temperature gap and first preset the temperature difference
Size, and compare described first temperature gap less than described first preset the temperature difference time, control described compressor oil return.
Wherein in an embodiment, described first horizontal level flushes with the bent axle inlet port position of described compressor.
Wherein in an embodiment, described second horizontal level is between the motor and upper flange of described compressor.
Wherein in an embodiment, the vertical dimension of the second horizontal level is higher than upper flange more than 10 millimeters.
Wherein in an embodiment, described first detector unit and described second detector unit are positioned at described
Compressor same in the radial direction.
Wherein in an embodiment, described first detector unit is multiple, multiple described first temperature detection units
At least one in part is arranged on described first horizontal position, and remaining described first detector unit is with the first horizontal position
It is set to be centrally disposed in the horizontal position of differing heights.
Wherein in an embodiment, described first detector unit and described second detector unit are arranged on institute
State in the circumferential angle A of compressor.
Wherein in an embodiment, also include:
3rd detector unit, is arranged on the exhaustor outside or inside of described compressor, is used for detecting described compression
The exhaust port temperatures of machine；
Described controller, is connected with described 3rd detector unit, for compare described first temperature gap little
After described first presets the temperature difference, obtain described exhaust port temperatures, calculate described warning temperature or described controlled temperature and institute
Stating the difference of exhaust port temperatures, obtain the second temperature gap, relatively described second temperature gap and second presets temperature extent,
And when comparing described second temperature gap and presetting the temperature difference more than or equal to described second, control described compression and normally transport
OK, when comparing described second temperature gap and presetting the temperature difference less than described second, described compressor oil return is controlled.
Wherein in an embodiment, described controller, it is additionally operable to described in comparison guard against temperature and described controlled temperature
Size, selects the bigger temperature in described warning temperature and described controlled temperature, and bigger temperature and described aerofluxus described in calculating
The difference of mouth temperature, obtains described second temperature gap.
This utility model also provides for a kind of air-conditioner, including above-mentioned compressor.
The beneficial effects of the utility model include:
Above-mentioned compressor and air-conditioner, the first detector unit detection warning temperature, the second detector unit detection
Controlled temperature, controller calculates controlled temperature and guards against the temperature gap of temperature as the first temperature gap, and compares the first temperature
Degree difference presets temperature extent with first, if comparing the first temperature gap to preset the temperature difference less than first, then comparison is described
The temperature difference of temperature and warning temperature is smaller, and compressor is in oil starvation state, needs to carry out oil return operation, it is to avoid compressor oil starvation
And can not the maloperation of oil return in time, improve the fault that compressor causes because of oil starvation, improve the reliability of compressor, extend compression
The service life of machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of the single cylinder compressor in an embodiment；
Fig. 2 is the plan structure schematic diagram of single cylinder compressor described in Fig. 1；
Fig. 3 is the structural representation of the duplex cylinder compressor in an embodiment；
Fig. 4 is the plan structure schematic diagram of duplex cylinder compressor described in Fig. 3；
Fig. 5 is the work process schematic diagram that the compressor in an embodiment carries out when oil starvation is protected；
Fig. 6 is the work process schematic diagram that the compressor in another embodiment carries out when oil starvation is protected；
Fig. 7 is the work process schematic diagram that the compressor in another embodiment carries out when oil starvation is protected；
Fig. 8 is the work process schematic diagram that the compressor in further embodiment carries out when oil starvation is protected.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
This utility model compressor and air-conditioner are further elaborated by example.Should be appreciated that described herein being embodied as
Example, only in order to explain this utility model, is not used to limit this utility model.
In one embodiment, Fig. 1 to Fig. 4 is seen, it is provided that a kind of compressor, including: the first detector unit 10,
It is arranged on first horizontal level within housing 1 of compressor, allows when the first horizontal level is properly functioning with compressor
Low pasta is concordant.Second detector unit 11, is arranged on second horizontal level within housing 1 of compressor, the second level
The vertical dimension of position exceeds the first horizontal level predeterminable range.Controller (not shown), with the first detector unit
10 and second detector unit 11 connect, for obtain first detector unit 10 detection warning temperature and the second temperature
The controlled temperature of detecting element 11 detection, calculates the difference of controlled temperature and warning temperature, obtains the first temperature gap, and compare
First temperature gap and first presets temperature extent, and when comparing the first temperature gap and presetting the temperature difference less than first,
Control compressor oil return.
The present embodiment, the warning temperature at minimum pasta that the first detector unit detection compressor allows time properly functioning
Degree, the second detector unit 11 detects compressor housing 1 internal vertical distance higher than the comparison at minimum pasta predeterminable range
Temperature, controller is higher than the comparison at minimum pasta predeterminable range by the warning temperature at relatively minimum pasta and vertical dimension
Temperature judges whether compressor is in oil starvation state, if warning temperature and controlled temperature differ greatly, illustrates to guard against temperature
Measure is the temperature of refrigeration oil, and controlled temperature measurement is the gas temperature within compressor, deposits at minimum pasta
At refrigeration oil, so that it is determined that compressor not oil starvation；If warning temperature and controlled temperature difference less, then explanation warning temperature and
Controlled temperature is likely to be all the gas temperature within compressor, now illustrates do not have refrigeration oil at minimum pasta, thus
Determine that compressor is in oil starvation state.Wherein, when compressor is properly functioning, the warning temperature of detection is the temperature in compressor oil sump
Degree, the controlled temperature of detection is the gas temperature above oil sump within compressor housing 1, and vertical dimension is preset higher than minimum pasta
Distance refers to exceed the position of pasta when compressor is properly functioning, such as: when compressor is properly functioning at the highest pasta, or
Position between the minimum pasta of person and the highest pasta.
Compressor in the present embodiment, the first detector unit 10 detection warning temperature, the second detector unit 11
Detection warning temperature, controller calculates the temperature gap of controlled temperature and warning temperature as the first temperature gap, and compares the
One temperature gap and first presets temperature extent, if comparing the first temperature gap to preset the temperature difference less than first, then illustrates
The temperature difference of controlled temperature and warning temperature is smaller, and compressor is in oil starvation state, needs to carry out oil return operation, it is to avoid compressor
Oil starvation and can not the maloperation of oil return in time, improve the fault that compressor causes because of oil starvation, improve the reliability of compressor, extend
The service life of compressor.Wherein, the first preset temperature is preferably 1.5 degrees Celsius.
In one embodiment, the first horizontal level flushes with the bent axle 4 inlet port position of compressor；Second horizontal level
Between the motor 3 and upper flange 6 of compressor.
Fig. 1 is to be provided with the first detector unit 10 and single cylinder pressure of the second detector unit 11 in an embodiment
The structural representation of contracting machine, Fig. 2 is the plan structure schematic diagram of the single cylinder compressor shown in Fig. 1.Single cylinder compressor includes: housing
1, it is arranged on the cylinder 2 bottom housing 1, is arranged on the motor 3 in the middle part of housing 1, and the bent axle being connected with cylinder 2 and motor 3
4, for the revolving force of motor 3 is transmitted to cylinder 2, to compress cold-producing medium, the bottom of housing 1 is additionally provided with connection cylinder 2
With the suction nozzle 5 of fluid reservoir, suction nozzle 5 is forming air entry 51 at housing 1, and the top of cylinder 2 is provided with upper flange 6,
The bottom of cylinder 2 is provided with lower flange 7, and the upper end cover of housing 1 is provided with exhaustor 8, for the gas after compression is discharged,
It is additionally provided with temperature line leading-out terminal 9, for drawing the connecting line of detector unit on housing 1 upper end cover.Wherein, motor 3
Including rotor 31 and the stator 32 being looped around rotor exterior, one end of bent axle 4 is connected through stator with motor 3.
Fig. 3 is to be provided with the first detector unit 10 and twin-tub pressure of the second detector unit 11 in an embodiment
The structural representation of contracting machine.Fig. 4 is the plan structure schematic diagram of the duplex cylinder compressor described in Fig. 3.Duplex cylinder compressor and single cylinder pressure
The difference of contracting machine is, it include two cylinders 2, respectively upper cylinder 20 and lower cylinder 21 and be arranged on upper cylinder 20 and under
Dividing plate 22 between cylinder 21, upper flange 6 is arranged on upper cylinder 20 top, and lower flange 7 is arranged on lower cylinder 21 bottom.
The minimum pasta allowed when compressor is properly functioning is relevant with the method for operation of compressor, therefore can be according to compression
The position of the first detector unit 10 that the actually used mode of machine adjusts, the neatest with the bent axle 4 inlet port position of compressor
Flat position be compressor properly functioning time allow minimum pasta, i.e. C=0.It is of course also possible to make according to the actual of compressor
The position horizontal level higher than bent axle 4 inlet port of the first detector unit 10, i.e. C > 0 is adjusted by method.Wherein, the first temperature
The connecting line of degree detecting element 10 is connected with temperature line leading-out terminal 9, by the warning temperature of circuit (such as cable) conveying detection,
Ensure that warning temperature can effectively be received.It is normal that position between motor 3 and the upper flange 6 of compressor is generally compressor
Vertical dimension during operation exceeds the position of minimum pasta predeterminable range.It should be noted that herein motor 3 and upper flange 6 it
Between refer between the bottom of motor 3 and the upper surface of upper flange 6.Preferably, the vertical dimension of the second horizontal level is higher than upper
Flange more than 10 millimeters, the i.e. value of B shown in Fig. 1 and Fig. 3 are more than or equal to 10 millimeters.Wherein, second detector unit 11
Connecting line is connected with temperature line leading-out terminal, by the controlled temperature of circuit (such as cable) conveying detection, it is ensured that controlled temperature energy
Enough effectively received.
In one embodiment, the first detector unit 10 and the second detector unit 11 are positioned at the same of compressor
In the radial direction.
In order to avoid the impact on detection data of the compressor internal circumferential change of temperature field, the first detecting element and the is set
Two detecting elements setting angle in compressor circumference is identical, the i.e. first detector unit 10 and the second detector unit
11 be positioned at compressor same in the radial direction, can avoid compressor circumference change of temperature field on detection temperature impact, carry
High detection is accurate, thus improves comfortableness and the reliability of compressor further.
In one embodiment, the first detector unit 10 is multiple, in multiple first detector units 10 extremely
Few one is arranged on the first horizontal position, and remaining first detector unit 10 is arranged on centered by the first horizontal level
The horizontal position of differing heights.
Preferably, remaining first detector unit 10 is arranged on different high centered by the first horizontal level at equal intervals
The horizontal position of degree.
Horizontal position at differing heights arrange the first detector unit 10 may determine that compressor internal each the
Whether there is oil under one detector unit 10 respective heights, thus take different oil return control programs.
In one embodiment, seeing Fig. 2, Fig. 4, the first detector unit 10 and the second detector unit 11 are installed
In compressor circumference angle A, i.e. with air entry position for compressor circumference initial angle (position shown in dotted line D) up time
Between 60 °～300 ° of pin, the impact on detection temperature of the air entry temperature can be avoided.Such as: the first detector unit 10 and
Two detector units 11 are installed at air entry position for clockwise 120 ° of compressor circumference initial angle, i.e. install
At dotted line E.
In one embodiment, also including: the 3rd detector unit, the exhaustor 8 being arranged on compressor is outside or interior
Portion, for detecting the exhaust port temperatures of compressor.Controller, is connected with the 3rd detector unit, for compare described
First temperature gap less than described first preset the temperature difference after, obtain exhaust port temperatures, calculate warning temperature or controlled temperature with
The difference of exhaust port temperatures, obtains the second temperature gap, compares the second temperature gap and second and presets temperature extent, Yi Ji
Compare the second temperature gap more than or equal to second preset the temperature difference time, control compression properly functioning, comparing the second temperature
When difference presets the temperature difference less than second, control compressor oil return.
When the first temperature gap presets the temperature difference less than first, the warning temperature of detection and controlled temperature may be all oil sumps
Interior temperature or warning temperature and controlled temperature are all the gas temperatures within compressor housing 1, in order to avoid erroneous judgement, need inspection
The exhaust port temperatures of measured compressed machine, then calculates warning temperature or the controlled temperature difference with exhaust port temperatures as the second temperature
Difference, and compare the second temperature gap and the second default temperature extent, when the second temperature gap is preset more than or equal to second
The temperature difference, illustrates that the warning temperature of detection and controlled temperature are all the temperature in oil sump, and now compressor is in oily state,
Now without carrying out oil return operation, control compressor and continue properly functioning, compressor can be avoided to have the maloperation of oily oil return,
Improve comfortableness, when the second temperature gap presets the temperature difference less than second, illustrate that the warning temperature of detection and controlled temperature are all pressures
Gas temperature in contracting casing body 1, compressor is now in oil starvation state, needs to carry out oil return operation, and compressor can be avoided to lack
Oil and can not the maloperation of oil return in time, improve the fault that compressor causes because of oil starvation, improve the reliability of compressor, extend and press
The service life of contracting machine.Wherein, second preset the temperature difference and be preferably 1 degree Celsius.
Wherein in an embodiment, controller, it is additionally operable to compare warning temperature and the size of controlled temperature, selects warning
Bigger temperature in temperature and controlled temperature, and calculate the difference of bigger temperature and described exhaust port temperatures, obtain the second temperature
Difference.
Owing to the exhaust port temperatures of compressor is typically greater than the temperature in compressor internal temperature or oil sump, in order to enter one
Walk avoids erroneous judgement, selects the bigger temperature that in warning temperature and controlled temperature, temperature value is bigger, calculates bigger temperature and row
The difference of QI KOU temperature is preset the temperature difference as the second temperature gap and second and is compared, when bigger temperature and exhaust port temperatures
Temperature gap presets the temperature difference more than or equal to second, then can ensure that less temperature with the temperature gap of exhaust port temperatures is also certainly
Preset the temperature difference more than or equal to second, the temperature guarding against the less temperature in temperature and controlled temperature with exhaust port temperatures can be avoided
Degree difference with second preset Temperature Difference Ratio relatively time, compressor is in oil starvation state and is but judged to there is oil condition, it is to avoid oil starvation and not
The problem of energy oil return in time, it is ensured that the reliability of compressor.Herein it should be noted that work as comfortableness and the reliability of compressor
When there is conflict, should first ensure that the priority of reliability of the reliability of compressor, i.e. compressor is more than comfortableness.
In one embodiment, a kind of air-conditioner is also provided for, including above-mentioned compressor.
Air-conditioner in the present embodiment can facilitate, determine compressor accurately under each running status whether oil starvation,
And do not carry out oil return operation determining when compressor has oil, carry out oil return operation when determining compressor oil starvation, can avoid
Oil oil return or oil starvation can not the maloperation of oil return in time, the fluctuations in indoor temperature that compressor raising frequency repeatedly or reduction cause can be avoided
Greatly, the problem of comfortableness difference, be substantially improved the fault that compressor causes because of oil starvation, improve the reliability of compressor.
For clearer explanation above-mentioned compressor and air-conditioner, see Fig. 5, carry out oil starvation below in conjunction with compressor
Work process during protection is described in detail, and it comprises the following steps:
S100, the warning temperature at minimum pasta allowed when detection compressor is properly functioning.
S200, it is the comparison temperature at predeterminable range that the enclosure interior of detection compressor exceeds the vertical dimension of minimum pasta
Degree.
S300, calculates the difference of controlled temperature and warning temperature, obtains the first temperature gap.
S400, compares the first temperature gap and first and presets temperature extent.
S420, when comparing the first temperature gap and presetting the temperature difference less than first, controls compressor oil return.
Use said method to facilitate, determine compressor accurately under each running status whether oil starvation, and really
Determine to carry out oil return operation during compressor oil starvation, can avoid oil starvation can not the maloperation of oil return in time, be substantially improved compressor because of
The fault that oil starvation causes, improves the reliability of compressor.
Further, see Fig. 6, also include: S410, preset more than or equal to first comparing the first temperature gap
During the temperature difference, control compressor properly functioning.
If comparing the first temperature gap to preset the temperature difference more than or equal to first, then illustrate that the warning temperature of detection is oil
Temperature in pond, the controlled temperature of detection is the gas temperature of compressor, and both Temperature Difference Ratios are relatively big, at compressor
In there being oil condition, it is not necessary to carry out oil return operation, control compressor and continue properly functioning, the mistake behaviour of oil oil return can be avoided
Make, it is to avoid the problem that fluctuations in indoor temperature is big, comfortableness is poor that compressor raising frequency repeatedly or reduction cause.
In one embodiment, when determining that the first temperature gap presets the temperature difference less than first, it is also possible to control compressor
Out of service.When determining compressor oil starvation, control that compressor is out of service also can be effectively prevented from compressor and cause because of oil starvation
Fault, extend compressor service life.
In one embodiment, see Fig. 7, after step S420, also include:
S500, the exhaust port temperatures of detection compressor.
S600, calculates the difference of warning temperature or controlled temperature and exhaust port temperatures, obtains the second temperature gap.
S700, compares the second temperature gap and second and presets temperature extent.
S710, when comparing the second temperature gap and presetting the temperature difference more than or equal to second, controls compression properly functioning.
S720, when comparing the second temperature gap and presetting the temperature difference less than second, controls compressor oil return.
Erroneous judgement can be avoided, improve the reliability of compressor further.
In one embodiment, seeing Fig. 8, step S600 includes:
S610, compares warning temperature and the size of controlled temperature, selects the bigger temperature in warning temperature and controlled temperature.
S620, calculates the difference of bigger temperature and described exhaust port temperatures, obtains the second temperature gap.
In one embodiment, step S500 includes:
S510, obtains the temperature from the 3rd detector unit, obtains exhaust port temperatures.
Wherein, the 3rd detector unit is arranged on the exhaustor outside or inside of compressor.
It should be noted that the first detector unit, the second detector unit and the 3rd temperature in above-described embodiment
Degree detecting element is temperature sensor.
In one embodiment, step S100 includes: S110, obtains the temperature from the first detector unit 10,
To warning temperature.
Wherein, the first detector unit 10 is arranged on the bent axle of the first horizontal level, the first horizontal level and compressor
Inlet port position flushes.
Step S200 includes: S210, obtains the temperature from the second detector unit 11, obtains controlled temperature.
Wherein, the second detector unit 11 is arranged on the second horizontal level, and the second horizontal level is positioned at described compressor
Motor and upper flange between.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the common skill of this area
For art personnel, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into
Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (10)
1. a compressor, it is characterised in that including:
First detector unit (10), is arranged on the first horizontal level that the housing (1) of described compressor is internal, and described first
The minimum pasta allowed when horizontal level is properly functioning with described compressor is concordant；
Second detector unit (11), is arranged on the second horizontal level that the housing (1) of described compressor is internal, and described second
The vertical dimension of horizontal level exceeds described first horizontal level predeterminable range；
Controller, is connected with described first detector unit (10) and described second detector unit (11), is used for obtaining
Warning temperature that first detector unit (10) detects and the controlled temperature that described second detector unit (11) detects, meter
Calculate the difference of described controlled temperature and described warning temperature, obtain the first temperature gap, and relatively described first temperature gap with
First presets temperature extent, and when comparing described first temperature gap and presetting the temperature difference less than described first, controls institute
State compressor oil return.
Compressor the most according to claim 1, it is characterised in that described first horizontal level and the bent axle of described compressor
(4) inlet port position flushes.
Compressor the most according to claim 1, it is characterised in that described second horizontal level is positioned at the electricity of described compressor
Between machine (3) and upper flange (6).
Compressor the most according to claim 3, it is characterised in that the vertical dimension of the second horizontal level is higher than upper flange 10
More than Hao meter.
Compressor the most according to claim 1, it is characterised in that described first detector unit (10) and described second
Detector unit (11) be positioned at described compressor same in the radial direction.
Compressor the most according to claim 5, it is characterised in that described first detector unit (10) is multiple, many
At least one in individual described first detector unit (10) is arranged on described first horizontal position, and remaining is described first years old
Detector unit (10) is arranged on the horizontal position of differing heights centered by the first horizontal level.
Compressor the most according to claim 6, it is characterised in that described first detector unit (10) and described second
Detector unit (11) is arranged in the circumferential angle A of described compressor.
Compressor the most according to claim 1, it is characterised in that also include:
3rd detector unit, is arranged on exhaustor (8) outside or inside of described compressor, is used for detecting described compressor
Exhaust port temperatures；
Described controller, is connected with described 3rd detector unit, for comparing described first temperature gap less than institute
State first preset the temperature difference after, obtain described exhaust port temperatures, calculate described warning temperature or described controlled temperature and described row
The difference of QI KOU temperature, obtains the second temperature gap, and relatively described second temperature gap and second presets temperature extent, and
When comparing described second temperature gap and presetting the temperature difference more than or equal to described second, control described compressor properly functioning,
When comparing described second temperature gap and presetting the temperature difference less than described second, control described compressor oil return.
Compressor the most according to claim 8, it is characterised in that described controller, is additionally operable to described in comparison guard against temperature
With the size of described controlled temperature, select the bigger temperature in described warning temperature and described controlled temperature, and described in calculating relatively
Big temperature and the difference of described exhaust port temperatures, obtain described second temperature gap.
10. an air-conditioner, it is characterised in that include the compressor described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776650.XU CN205876661U (en) | 2016-07-21 | 2016-07-21 | Compressor and air conditioner |
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| CN201620776650.XU CN205876661U (en) | 2016-07-21 | 2016-07-21 | Compressor and air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014927A (en) * | 2016-07-21 | 2016-10-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil shortage protection control method and device for compressor, compressor and air conditioner |
| CN107288886A (en) * | 2017-06-16 | 2017-10-24 | 特灵空调系统(中国)有限公司 | A kind of low-pressure cavity compressor system and its oil level control method |
-
2016
- 2016-07-21 CN CN201620776650.XU patent/CN205876661U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014927A (en) * | 2016-07-21 | 2016-10-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil shortage protection control method and device for compressor, compressor and air conditioner |
| CN107288886A (en) * | 2017-06-16 | 2017-10-24 | 特灵空调系统(中国)有限公司 | A kind of low-pressure cavity compressor system and its oil level control method |
| CN107288886B (en) * | 2017-06-16 | 2020-02-11 | 特灵空调系统(中国)有限公司 | Oil level control method for low-pressure cavity compressor system |
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