CN206206167U - Compressor and electric refrigerator - Google Patents
Compressor and electric refrigerator Download PDFInfo
- Publication number
- CN206206167U CN206206167U CN201621135307.3U CN201621135307U CN206206167U CN 206206167 U CN206206167 U CN 206206167U CN 201621135307 U CN201621135307 U CN 201621135307U CN 206206167 U CN206206167 U CN 206206167U
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- compressor
- detector unit
- upper flange
- control device
- counterbore
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Abstract
The utility model discloses a kind of compressor and electric refrigerator, belong to Compressor Technology field, to be designed the problems such as solving existing method high cost.The utility model compressor includes upper flange, stator winding and control device, and detector unit is provided with the axle journal of upper flange and/or in stator winding, and detector unit signal is connected to control device.The utility model compressor and electric refrigerator can judge whether oil starvation runs compressor, and low cost is applied widely, and range and certainty of measurement are guaranteed instead of existing fuel level sensor；Using safer, service life is longer.
Description
Technical field
The utility model is related to Compressor Technology field, more particularly to a kind of compressor and the refrigeration including the compressor
Electrical equipment.
Background technology
Inside the compressor of the electric refrigerators such as air-conditioning, refrigerator, heat can be constantly produced in the course of the work.Operating mode is more severe
When compressor rotating speed will be higher, its internal multiple contact surface high-speed friction and then produce huge heat, easily cause axle
Or the heavy wear of the part such as flange；Refrigerant or refrigeration oil are influenceed can qualitative change by high temperature, so as to influence overall performance
And reliability；Rotating speed motor load higher is bigger, electric current is bigger, it is more serious to generate heat, and easily causes motor demagnetization and even burns, can
The serious accidents such as blast can be triggered.
In order to avoid causing to produce substantial amounts of heat because of friction, existing compressor need to generally be equipped with fuel level sensor, utilize
Fuel level sensor come judge whether oil starvation run.Unit operation oil return frequency, frequency reducing or shutdown are controlled if oil starvation.The method
Defect is：The range and limited precision of fuel level sensor, and it is relatively costly, it is impossible to extensive use within the compressor.
Utility model content
A purpose of the present utility model is the compressor for proposing that a kind of low cost, measuring accuracy are high.
Another purpose of the present utility model is to propose a kind of electric refrigerator of long service life.
It is up to this purpose, on the one hand, the utility model uses following technical scheme：
A kind of compressor, including upper flange, stator winding and control device, at the axle journal of the upper flange and/or institute
State and detector unit is provided with stator winding, the detector unit signal is connected to the control device.
Particularly, counterbore is provided with the lateral surface of the axle journal of the upper flange, the detector unit is arranged on
In the counterbore；0.3 times to 0.5 times in upper flange axle journal height of the distance between the counterbore and upper end of the upper flange
Between.
Further, binding agent is filled with the counterbore, the detector unit is arranged in the binding agent.
Particularly, the detector unit passes through wire transmission, is wirelessly transferred or is loaded into transmission side in forceful electric power cable
Formula is realized being connected with the signal of the control device.
Further, when the detector unit is connected by wire transmission mode with the control device signal,
Through hole is provided with the housing of compressor, sealing plate is provided with the through hole, binding post is inserted with the sealing plate, it is described
Binding post is connected to the detector unit by wiring.
Further, be provided with boss on the lateral surface of the sealing plate, the through hole along its axis direction in step-like,
The boss is located on the medial surface of the housing or lateral surface.
On the other hand, the utility model uses following technical scheme：
A kind of electric refrigerator, including above-mentioned compressor.
The utility model compressor is provided with detector unit at the axle journal of upper flange and/or in stator winding, can
Judge whether oil starvation runs compressor, and low cost is applied widely, and range and certainty of measurement have with instead of existing fuel level sensor
Ensure；Judge whether motor overheats, judge whether motor overloads or occur stall by stator winding temperature detection, and then adopt
The measure of taking avoids compressor motor overheating generation explosion accident on fire；Using safer, service life is longer.
Brief description of the drawings
Fig. 1 is the sectional view of the compressor that the utility model preferred embodiment one is provided；
Fig. 2 is the partial enlarged drawing at A in Fig. 1；
Fig. 3 is the partial enlarged drawing at B in Fig. 1；
Fig. 4 is the structural representation of sealing plate and second fit system of housing that the utility model preferred embodiment one is provided
Figure.
In figure：
1st, upper flange；2nd, stator winding；3rd, detector unit；4th, binding agent；5th, housing；6th, sealing plate；7th, binding post；
8th, wiring；11st, counterbore；51st, through hole；61st, boss.
Specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by specific embodiment.
Preferred embodiment one：
This preferred embodiment discloses a kind of compressor, as depicted in figs. 1 and 2, the compressor include upper flange 1, stator around
Group 2 and control device, detector unit 3 are provided with the axle journal of upper flange 1, temperature inspection are provided with stator winding 2
Survey element 3 or be both provided with detector unit 3 at the axle journal of upper flange 1 and in stator winding 2, detector unit 3 is believed
Number it is connected to control device.
Generally the necked part of upper flange 1 is not immersed in lubricating oil, can be fast when being rubbed with crankshaft high-speed
Speed produces substantial amounts of heat, if compressor oil drainage rate is excessive or oil-way lubrication effect difference if easily cause the axle journal position of upper flange 1
Place's oil starvation operation is put, so that unstable wear, causes position seals failure, crankshaft breakdown or compressor damage etc. expendable
Failure.By detecting and monitoring the temperature of upper flange, the electric machine assembly in compression case body etc., can realize inside compressor
Early warning/warning function, it is timely to find whether oil starvation runs compressor, and then improvement system control strategy protects pressure to reach in time
Contracting machine runs for a long time, reliably on safe operating area and frequency range, reduces the probability that compressor breaks down.
The control method of the compressor is by detecting that the temperature value at the axle journal of upper flange 1 and/or in stator winding 2 is
It is no more than threshold value come judge compressor whether oil starvation operation, judging that compressor can adopt after the oil starvation running status to unit
Take control measure.The control measure are intended to protect unit, including but not limited to frequency reducing, operation oil return frequency, standby and shutdown.
When only detection upper flange 1 axle journal at or stator winding 2 in temperature value when, carried out with threshold value using the temperature value
Compare；When while detecting the temperature value in the temperature value and stator winding 2 at the axle journal of upper flange 1, two temperature values difference
It is compared with each self-corresponding threshold value, can is that compressor oil starvation fortune is judged when any of which temperature value exceedes threshold value
Row, can also be two temperature values above threshold value when just judge that compressor oil starvation runs.When while detecting the axle journal of upper flange 1
During temperature value in the temperature value and stator winding 2 at place, the threshold value corresponding to two temperature values can be the same or different.
Number of thresholds corresponding to each temperature value is not limited, and can only set a threshold value, can also include at least two
Threshold value, threshold values quantity number according to system control speed, efficiency and effect and specifically determine.Threshold values quantity is more at most by threshold values
The region quantity for marking off is more, and the control logic of selection, the judgement of current set state and controller to threshold values will
Ask higher, the mode of operation that compressor can be performed is also more.
The specific mounting means of detector unit 3 is not limited, it is preferred that set on the lateral surface of the axle journal of upper flange 1
There is counterbore 11, detector unit 3 is arranged in counterbore 11.In view of lubricant effect at the more upward position of the axle journal of upper flange 1
More tested, so 0.3 times to 0.5 times in upper flange axle journal height of the distance between upper end of counterbore 11 and upper flange 1
Between.The bottom of counterbore 11 need to be not less than 1mm with distance of round in upper flange, it is ensured that the reliability of upper flange inner circle intensity.
Binding agent 4 is filled with counterbore 11, during detector unit 3 is arranged on binding agent 4 (can also by welding and
The mode fixed temperature detection elements 3 such as binding).The species of detector unit 3 includes but is not limited to thermocouple and thermal resistance, uses
In the temperature of detection counterbore 11 bottom；Binding agent 4 needs the characteristic with the corrosion of high temperature resistant, resistance to refrigerant and refrigeration oil, uses
It is firmly sticked in counterbore 11 in by detector unit 3.The sensing part of detector unit 3 should connect with the bottom of counterbore 11
Touch, to detect the temperature closest to upper flange inner circle, it is ensured that testing result is more accurate.
In view of the temperature inside stator winding 2 is generally significantly higher than in the temperature of its outer surface, therefore stator winding 2
Detector unit 3 must go deep into the inside of winding coil, or in advance by temperature during the wire winding for making stator winding 2
Degree detecting element 3 is placed in one.
Transmission means is realized and control during detector unit 3 passes through wire transmission, is wirelessly transferred or is loaded into forceful electric power cable
The signal connection of device processed.
When detector unit 3 is connected by wire transmission mode with control device signal, on the housing 5 of compressor
It is provided with to be provided with sealing plate 6, sealing plate 6 in through hole 51, through hole 51 and is inserted with binding post 7, binding post 7 is connected by wiring 8
It is connected to detector unit 3.
The material of the different sealing plate 6 in practical application, it can also be different from the connected mode between housing 5,
Including but not limited to welding, end face seal, axial seal and chemistry are gluing.The quantity of binding post 7 will according to number of signals
Depending on asking；Sealing is preferably realized using artistic glass sintering between binding post 7 and sealing plate 6；Between binding post 7 and sealing plate 6
By the vitreum isolated insulation of high impedance, insulation impedance value need to reach does not influence the standard of shallow temperature signal transmission (general
More than 1k megohms), while vitreum sintering process must reach the high pressure resistant and high temperature resistant requirement as housing 5.
As shown in Figure 3 and Figure 4, sealing plate 6 mainly has two kinds with the fit system of housing 5, is set on the lateral surface of sealing plate 6
Be equipped with boss 61, through hole 51 along its axis direction in step-like, boss 61 be located on the lateral surface of housing 5 (as shown in Figure 3) or
On medial surface (as shown in Figure 4).Structure fabrication process shown in Fig. 3 is simple, but sealing does not have the structure shown in Fig. 4 good；By
Acted in by internal pressure, the respective outer side edges mode shown in Fig. 4 is more firm, but the processing technology of interior step is slightly complicated.
In the control method of the compressor, first threshold can be only set, be judged to when temperature is less than first threshold
Compressor lubrication is normal, and compressor continues executing with current operation mode；It is judged to that compressor lacks when temperature is higher than first threshold
Oil operation, controls compressor shutdown.
First threshold and Second Threshold can also be set simultaneously, wherein, first threshold is less than Second Threshold (such as the first threshold
It is 180 DEG C to be worth, and Second Threshold is 230 DEG C).It is judged to that compressor lubrication is normal (in normal when temperature is less than first threshold
Operation area), parts normal work is not limited in this region inner compressor frequency, raising frequency or can adjust other mechanisms
Make unit Effec-tive Function, i.e. compressor continues executing with current operation mode.
When temperature higher than first threshold and during less than Second Threshold load can not continue to improve, control compressor keeps current
Load declines load by reducing rotating speed, or runtime oil return frequency so that refrigeration oil return compression
Machine, compressor and freeze oil increases, so as to strengthen lubricant effect, making the temperature of temperature anomaly position reduces.
It is judged to that compressor oil starvation runs when temperature is higher than Second Threshold, in order to ensure the safety of compressor, controller
Stopping signal should be sent, it is to avoid lasting start causes compressor damage or damage.
Preferred embodiment two：
This preferred embodiment discloses a kind of electric refrigerator, including the compressor as described in preferred embodiment one.Refrigeration electricity
Device can be but be not limited to air-conditioning and refrigerator；Wherein, compressor can be but be not limited to single-stage single cylinder roller, multistage many
The products such as cylinder, vortex, linear, rotary cylinder type, piston type and screw compressor.
Note, above are only preferred embodiment of the present utility model and the know-why used.Those skilled in the art
It will be appreciated that the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various
Significantly change, readjust and substitute without departing from protection domain of the present utility model.Therefore, although implement more than
Example is described in further detail to the utility model, but the utility model is not limited only to above example, is not taking off
In the case of conceiving from the utility model, more other Equivalent embodiments can also be included, and scope of the present utility model is by institute
Attached right is determined.
Claims (7)
1. a kind of compressor, including upper flange (1), stator winding (2) and control device, it is characterised in that in the upper flange
(1) detector unit (3), detector unit (3) letter are provided with axle journal and/or in the stator winding (2)
Number it is connected to the control device.
2. compressor according to claim 1, it is characterised in that set on the lateral surface of the axle journal of the upper flange (1)
Counterbore (11) is equipped with, the detector unit (3) is arranged in the counterbore (11)；The counterbore (11) and the upper flange
(1) the distance between upper end is between 0.3 times to 0.5 times of upper flange axle journal height.
3. compressor according to claim 2, it is characterised in that binding agent (4), institute are filled with the counterbore (11)
Detector unit (3) is stated to be arranged in the binding agent (4).
4. the compressor according to any one of claims 1 to 3, it is characterised in that the detector unit (3) is by having
Transmission means is realized being connected with the signal of the control device during line transmits, is wirelessly transferred or is loaded into forceful electric power cable.
5. compressor according to claim 4, it is characterised in that when the detector unit (3) is by wire transmission
When mode is connected with the control device signal, it is provided with the housing (5) of compressor in through hole (51), the through hole (51)
It is provided with sealing plate (6), the sealing plate (6) and is inserted with binding post (7), the binding post (7) is connected to by wiring (8)
The detector unit (3).
6. compressor according to claim 5, it is characterised in that be provided with boss on the lateral surface of the sealing plate (6)
(61), the through hole (51) is in step-like, medial surface or outer of the boss (61) positioned at the housing (5) along its axis direction
On side.
7. a kind of electric refrigerator, it is characterised in that including the compressor as described in any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621135307.3U CN206206167U (en) | 2016-10-18 | 2016-10-18 | Compressor and electric refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621135307.3U CN206206167U (en) | 2016-10-18 | 2016-10-18 | Compressor and electric refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206206167U true CN206206167U (en) | 2017-05-31 |
Family
ID=58757078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621135307.3U Active CN206206167U (en) | 2016-10-18 | 2016-10-18 | Compressor and electric refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206206167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321440A (en) * | 2016-10-18 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor, refrigeration appliance and control method of compressor |
-
2016
- 2016-10-18 CN CN201621135307.3U patent/CN206206167U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321440A (en) * | 2016-10-18 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor, refrigeration appliance and control method of compressor |
| CN106321440B (en) * | 2016-10-18 | 2018-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | The control method of compressor, electric refrigerator and compressor |
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