CN101205920B - Device for preventing cyclone compressor from superheating - Google Patents
Device for preventing cyclone compressor from superheating Download PDFInfo
- Publication number
- CN101205920B CN101205920B CN200610130464XA CN200610130464A CN101205920B CN 101205920 B CN101205920 B CN 101205920B CN 200610130464X A CN200610130464X A CN 200610130464XA CN 200610130464 A CN200610130464 A CN 200610130464A CN 101205920 B CN101205920 B CN 101205920B
- Authority
- CN
- China
- Prior art keywords
- oil
- scroll compressor
- protection device
- overheat protection
- bimetallic material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention provides an overheating prevention device for scroll compressor, when the scroll compressor operates improperly, an open sectional area of a switching unit is designed to be increased to recover and collect oil of a high pressure part, so that the operation of the overheating prevention device can be more quickly, thereby improving the running efficiency of the overheating prevention device of the scroll compressor. The related overheating prevention device of the scroll compressor has simple structure, simple and convenient manufacture and installation. The overheating prevention device of the scroll compressor of the invention comprises an oil conduct part which conducts oil collected in an oil collecting part which is arranged on a fixed scroll into a motor protection apparatus of a drive motor; a bimetallic material tube which is made of materials with different heat expansion coefficients, provided with one side communicated with the oil conduct part, opens and closes the oil conduct part while generating changes along with the variation and curve degree of oil temperature.
Description
Technical field
The present invention relates to scroll compressor, thereby particularly be related to the oil of collecting high-voltage section and increase that the opening/closing unit open cross-sections is long-pending to make running more rapidly and improve the overheat protection device (OVERHEATING PREVENTION APPARATUS FOR SCROLLCOMPRESSOR) of the scroll compressor of running efficiency.
Background technique
In general, scroll compressor is the low noise efficient rate compressor that is widely used in the air conditioner field.The drive manner of scroll compressor is following: 2 spools carry out relative rotatablely moving, and between spool, form a plurality of paired pressing chambers; Pressing chamber is volume reducing when move at the center constantly, thereby the refrigerant of continuous suction is compressed, and discharges after the compression again.The scroll compressor of the prior art that constitutes as stated is provided with overheat protection device, and its effect is in the scroll compressor abnormal running, can prevent that scroll compressor from producing superheating phenomenon.
Below, in conjunction with Fig. 1 to Fig. 4, the overheat protection device of prior art scroll compressor is described.
Fig. 1 to Fig. 4 is the drawing that shows the overheat protection device of prior art scroll compressor.Fig. 1 shows the longitudinal section of prior art scroll compressor internal structure.Fig. 2 shows the longitudinal section of internal structure of the overheat protection device of prior art scroll compressor.Fig. 3 shows the planimetric map of internal structure of the overheat protection device of prior art scroll compressor.Fig. 4 shows the longitudinal section of open state of overheat protection device of the scroll compressor of prior art.
To shown in Figure 4, the scroll compressor of prior art is by constituting like the bottom like Fig. 1: the inner shell 110 that forms the containing space of sealing; Be housed in the inside of shell 110 and the press part 130 that refrigerant is compressed; Be arranged on the inside of shell 110 and the drive motor 170 of driving force is provided to press part 130.
Here, a side of shell 110 is provided with and sucks and discharge the suction pipe 111 and discharge tube 113 that refrigerant is used.The inside of shell 110 also is provided with upper bracket 115 and lower bracket 117, and upper bracket 115 is used to support press part 130 and drive motor 170 with lower bracket 117.
In addition, the bottom in the shell 110 is formed with the oily accommodation section 119 that is used to accommodate oil 120.Drive motor 170 is by constituting like the bottom: the stator 171 that is fixed on shell 110 inside; Be arranged on the inside of stator 171, and be the rotor 173 that the center is rotated with running shaft 175.
In addition, a side of stator 171 is provided with electric motor protective device 179, and in overheated, electric motor protective device 179 can make drive motor 170 shut down.The axle center of running shaft 175 is formed with fuel feeding path 176, and fuel feeding path 176 is used for upwards supplying with oil 120.The upper end of running shaft 175 is formed with eccentric part 177.
In addition, fixedly spool 131 is formed with the interconnecting part 135 that is used to be communicated with high pressure side and low voltage side.Fixedly spool 131 above be provided with thermally responsive valve assembly body 145.The effect of thermally responsive valve assembly body 145 is, when the temperature of cold media air rises, and open communication portion 135, the oil that on high-tension side refrigerant is contained flows to low voltage side.
In addition, fixedly spool 131 above be provided with along the valve accommodation section 137 of its thickness direction depression, valve accommodation section 137 is used to accommodate and thermally responsive valve assembly body 145 is set.One side of interconnecting part 135 is provided with pipe 152, and the effect of pipe 152 is that the oil that flows through interconnecting part 135 is directed to electric motor protective device 179.
Thermally responsive valve assembly body 145 on the scroll compressor that is arranged on prior art that constitutes as stated is by constituting like the bottom: the valve plate 146 of disc-shape; Circle hook shape, and a plurality of finger pieces (finger) 150 that prolong laterally along radial direction; Be arranged on the fixture 149 of valve plate 146 upsides.
Here, two kinds of metallic material that valve plate 146 is to use each other different thermal expansion coefficient form along the thickness direction layered arrangement, and two kinds of metallic material are bonded together.The central position of valve plate 146 is formed with shielding portion 147.Shielding portion 147 protrudes downwards along thickness direction, and is used to cover the inlet of interconnecting part 135.Be formed with a plurality of through holes 148 around the shielding portion 147.
That is, thermally responsive valve assembly body 145 is that the arranged outside of fixture 149 is useful on a plurality of finger pieces 150 that are pressed into fixture 149 by the metal construction be combined into of different heat expansion coefficient.When scroll compressor was in normal state, valve plate 146 was in closed condition; When scroll compressor was in abnormal condition, valve plate 146 can be in open state.
When the temperature of the cold media air of discharging rose, in the thermally responsive valve assembly body 145 that constitutes as stated, valve plate 146 produced distortion, thereby on the ingress of interconnecting part 135, rises.Therefore, oil flow into interconnecting part 135 through through hole 148, and flow to low voltage side along pipe 152.
That is, flowing to the oil of low voltage side from the inner high pressure sides of shell 110, is that inside temperature along with scroll compressor its temperature that rises also rises.When the excessive temperature of oil rose, electric motor protective device 179 entrys into service finally made drive motor 170 shut down, thereby can prevent the superheating phenomenon of scroll compressor.
But there is following problem points in the overheat protection device of the scroll compressor of the prior art that constitutes as stated.The sectional area that the valve plate 146 of the thermally responsive valve assembly body 145 of the overheat protection device of the scroll compressor of formation prior art can be opened; Be when making thermally responsive valve assembly body 145, to set, so its sectional area can be greater than the sectional area of having set.So the sectional area of circulation oil can be narrow, therefore, the oil mass that is delivered to electric motor protective device 179 can be fewer, thereby prolong the running opening time of electric motor protective device 179.
In addition, because the complex structure of thermally responsive valve assembly body 145, therefore, with its manufacturing and to be installed to the operation meeting of scroll compressor more loaded down with trivial details, thereby increased manufacturing expense.
Summary of the invention
The object of the present invention is to provide a kind of overheat protection device of scroll compressor of new structure, the oil of the high-voltage section that is collected in scroll compressor is recovered to low voltage section sooner, thereby reduce the discharge of oil.In the improper running of scroll compressor; In order to reclaim the oil that is collected in high-voltage section; Make the long-pending overheat protection device of open cross-sections of opening/closing unit greater than prior art; Thereby make the running of overheat protection device rapider, and then improve the running efficiency of the overheat protection device of scroll compressor.Meanwhile, the overheat protection device of scroll compressor of the present invention is simple in structure, and manufacturing and installation are also very convenient.
To achieve these goals, the technological scheme of the present invention's employing is:
Related scroll compressor comprises following component part: shell; Be arranged on enclosure, produce driving force, and be provided with the drive motor of the electric motor protective device of temporarily disconnected motor power when crossing load; Be arranged on enclosure, form pressing chamber, and be provided with collection separates fuel-displaced oil collection portion from refrigerant fixedly spool above it with spinning reel; The oil that is collected in oily collection portion is directed to the oily guide portion of the electric motor protective device of drive motor.
The overheat protection device of scroll compressor involved in the present invention comprises that the one of which side is communicated with oily guide portion and opens and closes the bimetallic material pipe that is made by materials having different thermal expansion coefficient of oily guide portion when changing along with its degree of crook of variation of oil temperature.Oil collection portion is provided with the oil cut-out portion of protrusion, and oily cut-out portion can be separated from from the entry end of bimetallic material pipe.
To achieve these goals, another technological scheme of the present invention's employing is:
The overheat protection device of related scroll compressor is by constituting like the bottom: shell; Be arranged on enclosure, produce driving force, and be provided with the drive motor of the electric motor protective device of the power supply of temporarily disconnected motor when crossing load; Be arranged on enclosure, form pressing chamber, and be provided with the fixedly spool of the oil collection portion of the oil that collection separates from refrigerant above it with spinning reel; Be directed to the oily guide portion of the electric motor protective device of drive motor with being collected in the fixing oil of the oil collection portion of spool; Secure bond is in a side of oily guide portion, and for the variation along with the oil temperature that is collected in oily collection portion opens and closes oily guide portion, twined and the bimetallic material tower tray that forms by the different bimetallic material band of the interval thermal expansion coefficient of difference.
The effect of invention
The overheat protection device of the scroll compressor of the present invention that constitutes as stated has following effect.Be recovered to low voltage section owing to will be collected in the oil of the high-voltage section of scroll compressor, thereby reduce the discharge of oil.In addition; In the improper running of scroll compressor; In order to reclaim the oil that is collected in high-voltage section; Make the long-pending overheat protection device of open cross-sections of opening/closing unit, thereby make the running of overheat protection device rapider, and then improve the running efficiency of the overheat protection device of scroll compressor greater than prior art.Meanwhile, the overheat protection device of scroll compressor of the present invention is simple in structure, and makes and install also very easy.
Description of drawings
Fig. 1 to Fig. 4 is the drawing of overheat protection device that shows the scroll compressor of prior art.
Fig. 1 is the longitudinal section of internal structure that shows the scroll compressor of prior art.
Fig. 2 is the longitudinal section of internal structure of overheat protection device that shows the scroll compressor of prior art.
Fig. 3 is the planimetric map of internal structure of overheat protection device that shows the scroll compressor of prior art.
Fig. 4 is the longitudinal section of open state of overheat protection device that shows the scroll compressor of prior art.
Fig. 5 to Figure 12 is the drawing of overheat protection device that shows the scroll compressor of the embodiment of the invention.
Fig. 5 is the longitudinal section of internal structure that shows the scroll compressor that is provided with overheat protection device of first embodiment of the invention.
Fig. 6 is the longitudinal section of overheat protection device of the scroll compressor of magnifying show first embodiment of the invention.
Fig. 7 is the longitudinal section of open state of overheat protection device that shows the scroll compressor of first embodiment of the invention.
Fig. 8 is the longitudinal section of variation of overheat protection device of the scroll compressor of magnifying show first embodiment of the invention.
Fig. 9 and Figure 10 are the schematic representation of structure of overheat protection device that shows the scroll compressor of second embodiment of the invention.
Figure 11 is the profile of open state of overheat protection device that shows the scroll compressor of second embodiment of the invention.
Figure 12 is the longitudinal section of variation of overheat protection device that shows the scroll compressor of the embodiment of the invention.
The description of symbols of accompanying drawing major component
110: shell 120: oil
130: press part 131: fixing spool
134: exhaust port 140:O type circle
144a: high pressure side 144b: low voltage side
155: oil pipe 161: spinning reel
170: drive motor 179: electric motor protective device
200: opening and closing device 205: interconnecting part
207: oily collection portion 208: entry end
300: bimetallic material pipe 301: the right angle face
302: plane of inclination 400: oily cut-out portion
500: bimetallic material tower tray 501: the bimetallic material band
520: the second bulges of 510: the first bulges
530: oily suction tank
Embodiment
Below, will combine accompanying drawing, the embodiment of the overheat protection device of scroll compressor of the present invention is elaborated.
In order to combine accompanying drawing to be convenient to explain the overheat protection device of the scroll compressor of the embodiment of the invention, the identical part of structure in the additional drawing gives identical symbol with the declaratives of the scroll compressor of prior art and for explanation.
Fig. 5 to Figure 12 is the drawing of overheat protection device that shows the scroll compressor of the embodiment of the invention.Fig. 5 is the longitudinal section of internal structure that shows the scroll compressor that is provided with overheat protection device of first embodiment of the invention.
As shown in Figure 5, the scroll compressor that is provided with overheat protection device of first embodiment of the invention comprises like the bottom: shell 110; Be arranged on shell 110 inside, produce driving force, and be provided with the drive motor 170 of the electric motor protective device 179 of temporarily disconnected motor power when crossing load; Be arranged on shell 110 inside, form pressing chamber with spinning reel 161, and be provided with the fixedly spool 201 of collection above it from the oil collection portion 207 of refrigerant isolated oily 120; The oil 120 of fixedly oil collection portion 207 collections of spool 201 is directed to the oily guide portion of the electric motor protective device 179 of drive motor 170; The one of which end is communicated with oily guide portion, and along with oil 120 variation of temperature, when its degree of crook changes, opens and closes the bimetallic material pipe 300 that is made by the different material of thermal expansion coefficient of oily guide portion.
Here, bimetallic material pipe 300 is to be made up of with the second big pipe portion 320 of thermal expansion coefficient the first little pipe portion 310 of thermal expansion coefficient.And the first pipe portion 310 and the second pipe portion 320 form along its outer tube surface butt joint.
In addition, the entry end of bimetallic material pipe 300 is face of meeting at right angles 301 or plane of inclination 302 with respect to the oil circuit (not shown) of the inside that is formed on bimetallic material pipe 300.And the other end of bimetallic material pipe 300 is fixed on a side of oily guide portion.
In addition, be provided with O type circle (Oldham ' sring) 140 between spinning reel 161 and the upper bracket 115, the effect of O type circle (Oldham ' s ring) 140 is to prevent the rotation of spinning reel 161.
Below, will combine Fig. 6 and Fig. 7, the operation process of the overheat protection device of the scroll compressor that constitutes is as stated described.
Fig. 6 is the longitudinal section of overheat protection device of the scroll compressor of magnifying show first embodiment of the invention.Fig. 7 is the longitudinal section of open state of overheat protection device that shows the scroll compressor of first embodiment of the invention.
As shown in Figure 6, the overheat protection device of the scroll compressor of first embodiment of the invention comprises like the bottom: in order to collect the oil 120 that is included in the refrigerant, and the fixing top oil collection portion 207 that forms along the depression of direction thereafter of spool 131; The low voltage side 144b of an other side of spool 131 is interconnected with being formed on fixedly in order to make the high pressure side 144a that is formed on fixing spool 131 1 sides, in oil collection portion 207 to the fixing oily guide portion of the outside perforation of spool 131; One of which end fixed oil guide portion also is connected with oily guide portion, and its degree of crook is when changing along with the temperature variation of oil 120, opens and closes the bimetallic material pipe 300 that is made up of two kinds of different materials of thermal expansion coefficient of oily guide portion.
Here, bimetallic material pipe 300 is to be made up of with the second big pipe portion 320 of thermal expansion coefficient the first little pipe portion 310 of thermal expansion coefficient, and, form along its tube outside butt joint by the first pipe portion 310 and the second pipe portion 320.Because the first pipe portion 310 has different thermal expansion coefficient separately with the second pipe portion 320, therefore, along with the variation of temperature of oil 120, bimetallic material pipe 300 can produce bending.
That is, as shown in Figure 6, when scroll compressor was in normal operation, because the temperature of oil 120 is a low temperature, so bimetallic material pipe 300 was kept original state.On the contrary; When scroll compressor is in improper operating condition, produce under the influence of high temperature; The temperature of oil 120 also rises to high temperature thereupon, at this moment, because the thermal dilation difference of the first pipe portion 310 and the second pipe portion 320; The form generation bending change of bimetallic material pipe 300 is varied to shape as shown in Figure 7.
At this time, bimetallic material pipe 300 is to bent by the smaller first pipe portion, 310 1 lateral bendings of thermal expansion.Therefore, the global shape of bimetallic material pipe 300 produces crooked.Be collected in the oil 120 of oily collection portion 207, will flow into the oil circuit (not shown) of its inner formation through an end of bimetallic material pipe 300.
In addition, like Fig. 6 and shown in Figure 7, the oil collection portion 207 of overheat protection device that constitutes the scroll compressor of first embodiment of the invention is provided with oily cut-out portion 400.In the normal operation of scroll compressor, the entry end of bimetallic material pipe 300 touches a side of oily cut-out portion 400, thereby cuts off the inflow of oil 120.In the improper running of scroll compressor, bimetallic material pipe 300 produces bending change, thereby the entry end that makes bimetallic material pipe 300 is separated from from a side of oil cut-out portion 400, thereby oil 120 is flowed into through entry end.
Promptly; Because oily collection portion 207 is provided with aforesaid oily cut-out portion 400; Therefore, the overheat protection device of scroll compressor is when scroll compressor runs well, and is as shown in Figure 6; The entry end of bimetallic material pipe 300 touches a side of oily cut-out portion 400, thereby cuts off the inflow of oil 120.
In the improper running of scroll compressor; As shown in Figure 7, under the influence of the thermal dilation difference of the first pipe portion 310 and the second pipe portion 320, bimetallic material pipe 300 produces bending change; Therefore; The entry end of bimetallic material pipe 300 is separated from from the one side of oil cut-out portion 400, thereby can make the oil circuit (not shown) of oil 120 inboard through being formed on bimetallic material pipe 300 flow to oily guide portion, then; Be delivered to scroll compressor stops the running of drive motor when overheated electric motor protective device from an other side of oily guide portion, therefore can prevent the overheated of scroll compressor.
Here, oil 120 has certain viscosity, and is blended in the refrigerant with atomize, is collected in oily collection portion 207 after being solidified.When its temperature was lower, its viscosity ratio was higher, therefore not too can flow.But in the scroll compressor running, if superheating phenomenon takes place, under the effect of the heat that is delivered to scroll compressor, oil becomes the condition of high temperature, and at this time the viscosity ratio of oil is lower, and is easy to flow.
As stated, thereby at high temperature viscosity reduces the oil 120 change the state that can flow easily into, and oil circuit (not shown) that will be through being formed on bimetallic material pipe 300 inboards and oily guide portion, oil pipe 155 flow to electric motor protective device 197.
The shape of the bimetallic material pipe 300 of above-mentioned formation is following: when scroll compressor is in normal operation; As shown in Figure 6, with
curved shape; When scroll compressor is in improper operating condition, under the effect of the thermal expansion of the first pipe portion 310 and the second pipe portion 320, produce crooked, thereby be varied to " I " shape as shown in Figure 7.In addition; For the end that oily cut-out portion 400 can be touched with the bimetallic material pipe 300 of
curved shape; Oil cut-out portion 400 is arranged on the bottom surface of oily collection portion 207; And, adjacent with the position of bimetallic material pipe 300.
But it is to be limited in aforesaid shape that the shape of the shape of bimetallic material pipe 300 and oily cut-out portion 400 has more than.For the shape of the bending of bimetallic material pipe 300, if can open and close bimetallic material pipe 300, its any other shape and position also can be adopted.
As stated, the entry end of the bimetallic material pipe 300 that oil 120 flows into, with respect to the direction that is formed on the inner oil circuit of bimetallic material pipe 300 face 301 that meets at right angles, still, having more than is to be limited in this.If oil 120 can be through the inner oil circuit of bimetallic material pipe 300, and flows very smoothly, and oil 120 can to flow into oil circuit very smoothly inner, it is no matter be that what shape all is fine.
Below, in conjunction with Fig. 8 the variation of the entry end of bimetallic material pipe 300 is described.
Fig. 8 is the longitudinal section of variation of overheat protection device of the scroll compressor of magnifying show first embodiment of the invention.As shown in Figure 8; The entry end shape of bimetallic material pipe 300 of overheat protection device of scroll compressor that constitutes first embodiment of the invention is following: with respect to being formed on the inner oil circuit direction of bimetallic material pipe 300, the entry end of bimetallic material pipe 300 is into the plane of inclination 302 of certain inclination.
That is, constitute the entry end of bimetallic material pipe 300 of overheat protection device of the scroll compressor of first embodiment of the invention, be with certain angle tilt with respect to being formed on bimetallic material pipe 300 inner oil circuit directions, thereby form plane of inclination 302.The sectional area that therefore, can make oil 120 flow into oil circuit (not shown) becomes bigger.
In the scroll compressor running; Oil 120 plane of inclination 302 at an end that is formed on bimetallic material pipe 300 that has bigger sectional area; Can flow into the oil circuit (not shown) that is formed on bimetallic material pipe 300 inside more smoothly; Therefore, oil 120 can flow to electric motor protective device 197 more smoothly, thereby can prevent the overheated of scroll compressor.
As stated, the entry end of bimetallic material pipe 300 is with respect to the oil circuit direction of the inside that is formed on bimetallic material pipe 300 meet at right angles face 301 or plane of inclination 302.But having more than is to be limited to above-mentioned shape, so long as the shape of the inflow of oil 120 smoothnesses all is fine.
In addition; Constituting the bimetallic material pipe 300 of overheat protection device of the scroll compressor of first embodiment of the invention, is to fix through the structure that the one of which end is pressed into oily guide portion one side, therefore; Surrounding environment is under pressure or when impacting, its combination force can not descend yet.
Below, will combine Fig. 9 to Figure 11, the structure of the overheat protection device of the scroll compressor of second embodiment of the invention is described.
Fig. 9 and Figure 10 are the schematic representation of structure of overheat protection device that shows the scroll compressor of second embodiment of the invention.Figure 11 is the profile of open state of overheat protection device that shows the scroll compressor of second embodiment of the invention.
Be provided with like Fig. 9 and comprise like the bottom to the scroll compressor of the overheat protection device of second embodiment of the invention shown in Figure 11: shell 110; Be arranged on shell 110 inside, produce driving force, and be provided with the drive motor 170 of the electric motor protective device 179 of temporarily disconnected motor power when crossing load; Be arranged on shell 110 inside, form pressing chambers, and be provided with the fixedly spool 201 of the oil collection portion 207 of the oil 120 that collection separates from refrigerant above it with spinning reel 161; Be directed to the oily guide portion of the electric motor protective device 179 of drive motor 170 with being collected in the fixing oil 120 of the oil collection portion 207 of spool 201; Secure bond is in a side of oily guide portion, and the temperature variation of collecting oil 120 along with oil collection portion opens and closes oily guide portion, twined and the bimetallic material tower tray 500 that forms by the different bimetallic material band 501 of the interval thermal expansion coefficient of difference.
Here; First bulge 510 that bimetallic material band 501 is processed by the little material of thermal expansion coefficient and arranged along its length direction butt joint by second bulge 520 that the big material of thermal expansion coefficient is processed forms; And first bulge 510 and second bulge 520 are alternately arranged with certain spacing each other.
That is, first bulge of being processed by the little material of thermal expansion coefficient 510 and the bimetallic material bands of alternately being arranged each other by second bulge 520 that the big material of thermal expansion coefficient is processed 501 twine and form the outward appearance of bimetallic material tower tray 500.Because the difference of each material coefficient of thermal expansion coefficient; Therefore; Along with the variation of temperature of oil 120, the demi-inflation that thermal expansion coefficient is big in first bulge 510 and second bulge 520 enlarges, thereby is formed for the oil inflow groove 530 that oil 120 flows into; And, make oil 120 flow into groove 530 and flow into through oil.Perhaps, first bulge 510 and second bulge 520 are eliminated to expand and are enlarged, and cut-out oil 120 flows into groove 530 inflows through oil.
Here, first bulge 510 and second bulge 520 of formation bimetallic material band 501 can be to be processed by thermal expansion coefficient two kinds of materials that there were significant differences.First bulge 510 can be to be processed by the bigger copper of thermal expansion coefficient, lead alloy or nickel, manganese, ferro-alloy or nickel, molybdenum, ferro-alloy or manganese, nickel, Cu alloy material.Second bulge can be that the little nickel of thermal expansion coefficient, ferroalloy materials are processed.
The bimetallic material tower tray 500 that the bimetallic material band 501 that constitutes as stated constitutes when scroll compressor runs well, because oil 120 is to be in low-temperature condition, is therefore kept original shape.In the improper running of scroll compressor, after the heat that produces was delivered to oil, when the temperature of oil 120 rose to high temperature, first bulge 510 and second bulge 520 were under the effect of thermal expansion, and its shape changes.
At this time; In bimetallic material tower tray 500; First bulge of being processed by the big material of thermal expansion 510 produces bigger expansion than second bulge of being processed by the little material of thermal expansion 520; Therefore, the gap that is positioned at the face of first bulge, 510 sides becomes big, thereby is formed for the oil inflow groove 530 that oil 120 flows into.Be collected in the oil 120 of oily collection portion 207, will flow into groove 530 through oil and flow into its inner oil circuit (not shown) that forms.Flow into the oil 120 that groove 530 flows into through oil, will flow to electric motor protective device 197 very smoothly through being formed on bimetallic material tower tray 500 inboard oil circuit (not shown) and oily guide portion.
In addition, can be under oil 120 pressure effect in order to make bimetallic material tower tray 500 to lower recess, bimetallic material tower tray 500 upwards is wound in more and more littler cone shape by bimetallic material band 501 from the bottom of oil collection portion 207.And the one of which end is pressed into a side that is fixed on oily guide portion.
In the overheat protection device of the scroll compressor of the present invention in aforesaid each embodiment, oily guide portion is by constituting like the bottom: interconnecting part 205; To be directed to the oil pipe 155 of electric motor protective device 179 through the oil 120 that interconnecting part 205 flows.The low voltage side 144b of the opposite side of spool is interconnected with being formed on fixedly in order to make the high pressure side 144a that is formed on fixing spool one side, and interconnecting part 205 is to the outside perforation of fixing spool 201 from oil collection portion 207.
Below, in conjunction with Figure 12 the concrete structure that constitutes oily guide portion interconnecting part 205 is described.
Figure 12 is the longitudinal section of variation of overheat protection device that shows the scroll compressor of the embodiment of the invention.Shown in figure 12, be arranged on the oily guide portion of overheat protection device of each embodiment's of the present invention scroll compressor, be to the certain angle of the lopsidedness that is provided with electric motor protective device with respect to the axle direction of scroll compressor.
In the overheat protection device of the scroll compressor in aforesaid each embodiment of the present invention; The interconnecting part 205 of oil in the guide portion is that the low voltage side 144b of an other side of spool is interconnected in order to make the high pressure side 144a that is formed on a fixing side of spool and to be formed on fixedly; Be formed at inflow entrance (not shown) beginning of the bottom surface of oily collection portion 207 from opening, arrive the fixedly outside of spool 201 through the fixing internal run-through of spool 201.Through changing the formation direction of interconnecting part 205, refrigerant is flowed more smoothly.
Promptly; With as stated in same content; Interconnecting part 205 forms the inclination of several angle with respect to the axle direction of scroll compressor, thereby can make under the effect of oil 120 at gravity of the internal flow of interconnecting part 205, flows more smoothly; Therefore, make the rapid running of overheat protection device become possibility.
Claims (5)
1. the overheat protection device of a scroll compressor, related scroll compressor comprises: shell; Be arranged on enclosure, produce driving force, and be provided with the drive motor of the electric motor protective device of temporarily disconnected motor power when crossing load; Be arranged on enclosure, form pressing chamber, and be provided with collection separates fuel-displaced oil collection portion from refrigerant fixedly spool above it with spinning reel; Be directed to the oily guide portion of the electric motor protective device of drive motor with being collected in the fixing oil of the oil collection portion of spool;
It is characterized in that: the overheat protection device of scroll compressor comprises that the one of which side is communicated with oily guide portion and opens and closes the bimetallic material pipe that is made by materials having different thermal expansion coefficient of oily guide portion when changing along with its degree of crook of variation of oil temperature; Oil collection portion is provided with the oil cut-out portion of protrusion, and oily cut-out portion can be separated from from the entry end of bimetallic material pipe.
2. the overheat protection device of scroll compressor according to claim 1 is characterized in that: the first pipe portion that the bimetallic material pipe is processed by the little material of thermal expansion coefficient and formed along its outer tube surface butt joint by the second pipe portion that the big material of thermal expansion coefficient is processed.
3. the overheat protection device of scroll compressor according to claim 1 is characterized in that: the entry end of bimetallic material pipe, and with respect to being formed on the inner oil circuit direction of bimetallic material pipe meet at right angles face or plane of inclination.
4. the overheat protection device of scroll compressor according to claim 1, it is characterized in that: an end of bimetallic material pipe is pressed into a side that is fixed on oily guide portion.
5. the overheat protection device of scroll compressor according to claim 4; It is characterized in that; The oil guide portion is by constituting like the bottom: the low voltage side of the other side of spool is interconnected in order to make the high pressure side that is formed on fixing spool one side and to be formed on fixedly, thus the interconnecting part that forms to the fixing outside perforation of spool in oil collection portion; To be directed to the oil pipe of electric motor protective device through the oil that interconnecting part flows; Interconnecting part forms the several angle inclination with respect to the axle direction of scroll compressor to the direction that is provided with electric motor protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610130464XA CN101205920B (en) | 2006-12-20 | 2006-12-20 | Device for preventing cyclone compressor from superheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610130464XA CN101205920B (en) | 2006-12-20 | 2006-12-20 | Device for preventing cyclone compressor from superheating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101205920A CN101205920A (en) | 2008-06-25 |
| CN101205920B true CN101205920B (en) | 2012-04-18 |
Family
ID=39566331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610130464XA Expired - Fee Related CN101205920B (en) | 2006-12-20 | 2006-12-20 | Device for preventing cyclone compressor from superheating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205920B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5141407A (en) * | 1990-10-01 | 1992-08-25 | Copeland Corporation | Scroll machine with overheating protection |
| CN1310301A (en) * | 2000-02-24 | 2001-08-29 | 司考柔技术公司 | Sealed compressor with hot oil-operated protection switch |
| US6485268B1 (en) * | 2000-10-17 | 2002-11-26 | Scroll Technologies | Oil utilized as motor protector trip for scroll compressor |
| CN1629493A (en) * | 2003-12-19 | 2005-06-22 | Lg电子株式会社 | Overheating protection apparatus of scroll compressor |
-
2006
- 2006-12-20 CN CN200610130464XA patent/CN101205920B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5141407A (en) * | 1990-10-01 | 1992-08-25 | Copeland Corporation | Scroll machine with overheating protection |
| CN1310301A (en) * | 2000-02-24 | 2001-08-29 | 司考柔技术公司 | Sealed compressor with hot oil-operated protection switch |
| US6485268B1 (en) * | 2000-10-17 | 2002-11-26 | Scroll Technologies | Oil utilized as motor protector trip for scroll compressor |
| CN1629493A (en) * | 2003-12-19 | 2005-06-22 | Lg电子株式会社 | Overheating protection apparatus of scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101205920A (en) | 2008-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100869929B1 (en) | Scroll compressor | |
| JP5813215B2 (en) | Hermetic compressor and vapor compression refrigeration cycle apparatus including the hermetic compressor | |
| US6905320B2 (en) | Scroll-type fluid machine | |
| US20090035168A1 (en) | Scroll-type refrigerant compressor | |
| CN102725526A (en) | Compressor and refrigeration device | |
| KR102274758B1 (en) | Scroll compressor | |
| CN103384769B (en) | Scroll compressor | |
| JP6597744B2 (en) | Oil separator | |
| US11236745B2 (en) | Scroll compressor having injection passage including first and second outlet passage sections | |
| CN101205920B (en) | Device for preventing cyclone compressor from superheating | |
| JP2003083272A (en) | Screw compressor | |
| CN211449040U (en) | Compressor with a compressor housing having a plurality of compressor blades | |
| CN105201846B (en) | Rotary compressor | |
| CN100467871C (en) | Horizontal type orbiting vane compressor | |
| JP2009074485A (en) | Scroll compressor | |
| KR101130465B1 (en) | Overheating prevention apparatus for scroll compressor | |
| JP6445948B2 (en) | Screw compressor | |
| CN208534767U (en) | A kind of oil separation device and compressor | |
| JPH0777188A (en) | Scroll compressor | |
| JPS62126288A (en) | Sealed type scroll compressor | |
| JP5285455B2 (en) | Compressor | |
| JP4848432B2 (en) | Scroll compressor | |
| JP5556368B2 (en) | Scroll compressor | |
| CN201159150Y (en) | Embedded centrifugal type oil separator of compressor | |
| JP2013500415A (en) | Hermetic compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20161220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |