CN1782412A - High temperature preventing device of scroll compressor - Google Patents
High temperature preventing device of scroll compressor Download PDFInfo
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- CN1782412A CN1782412A CN 200410096517 CN200410096517A CN1782412A CN 1782412 A CN1782412 A CN 1782412A CN 200410096517 CN200410096517 CN 200410096517 CN 200410096517 A CN200410096517 A CN 200410096517A CN 1782412 A CN1782412 A CN 1782412A
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Abstract
The high temperature preventing device of scroll compressor is high temperature gas exhaust passage in the compressing part formed between the fixed scroll and the spiral scroll with temperature sensing valve to open or close the passage based on the temperature in the middle part. The passage is on one side of the output port of the fixed scroll and is a horizontal passage perpendicular to the vertical passage communicated with the compression part. The temperature sensing valve is inserted movably on the vertical passage and the opening and closing part is combined in the middle part and made of bimetal temperature sensing element. The present invention has raised reliability.
Description
Technical field
The present invention relates to a kind of high temperature preventing device of scroll compressor; particularly relate to a kind of induction and be formed at the fixedly intermediate pressure and the temperature of the pressure portion between the spool and spiral spool; start then and open and close the passage that communicates to low voltage section from high-voltage section; and start the protective gear be attached on the output gas rotation section, finish the high temperature preventing device of scroll compressor of the protection of compressor thus.
Background technique
Seeing also shown in Figure 1ly, is the longitudinal section figure of existing scroll compressor, and as shown in the figure, adopting the scroll compressor of the overheat protection device among the present invention is main body, and its inside is made up of following components: inner airtight seal container 1; The upper frame 2 that combines with the upper inside of above-mentioned seal container 1; The lower frame 3 of the inner lower combination of above-mentioned seal container 1; Between above-mentioned upper frame 2 and lower frame 3, possesses the motor 6 of said stator 4 and rotor 5.
The center of above-mentioned rotor 5 then combines with the crankshaft 7 that spiral with rotor 5 rotates.Above-mentioned upper frame 2 is fixed with fixedly spool 8, and meshes at the bottom and the rotatable spiral spool 9 of said fixing spool 8.The central part of above-mentioned spiral spool 9 bottoms then is at above-mentioned crankshaft 7, in the position of departing from above-mentioned crankshaft 7 centers, combines with centrifugal 7a in the upper end of crankshaft 7 and slide bushing 10.
The top of the fixedly spool 8 of above-mentioned seal container 1 has possessed the output chamber at high pressure sub-argument type silencing apparatus 20 inboard residual pressurized gas.Fixedly the intermediate portion of spool 8 also is provided with refrigerant suction pipe 11 when forming delivery outlet 8a.The refrigerant gas output tube that one side pressure of above-mentioned output chamber 20 is contracted, and portion is provided with throttle down 13 within it.In the bottom of above-mentioned seal container 1, filled machine oil 23 then to the supply of scroll compressor slides within position
Such a scroll compressor is at first to stator 4 power supplies of motor 6, and the rotor 5 of said stator 4 inside is with rotating with the interaction of stator 4.
The rotation of the crankshaft 7 that drives the intermediate portion engagement of above-mentioned rotor 5 thus and be provided with, and according to the rotation of above-mentioned crankshaft 7, the spiral spool 9 of centrifugal 7a setting is being done centrifugal motion at the centrifugal place of distance in the upper end of crankshaft 7, and at the axle center is initial point, and the place is rotated motion apart from turning radius.The rotating operation of also with good grounds above-mentioned spiral spool 9 is at its spiral spool 9 with fixedly form pressing chamber between each liner of spool 8 (spiral type shape portion).This pressing chamber is according to the rotating operation that continues and Mobility Center and reduce seal container 1, more strengthened the compression dynamics of the refrigerant gas that sucks to above-mentioned seal container (inside) by suction pipe 11.
The refrigeration agent extruded of compression is discharged into output chamber 21 by the output port that forms in the fixing spool 8 again thereupon, and flows into the next link of following in the process of going back to the compressed refrigerant of above-mentioned output chamber 21 outputs by the output tube 12 that is provided with in output chamber 21.
Generally speaking, the freezing link of the air-conditioning that adopts in the aforesaid scroll compressor is made up of compressor, the machine that condenses, rapid steamer and expanding petal (perhaps capillary tube).Also have after the refrigeration agent of the High Temperature High Pressure of carrying out going out according to compressor compresses when freezing then is to be sent to the machine that condenses, to outside discharges heat, again pass through expanding petal then, be converted to the refrigeration agent of low-temp low-pressure, in vaporizer, gasify, behind the heat around absorbing, repeat the process that sucks from compressor.
Under the normal situation of such a operation, the temperature of the high-voltage section of compressor can maintain necessarily below the mark, and this temperature plays important design variables effect in the working process of compressor, and performance, efficient, the reliability of compressor produced a very large impact.Simultaneously when the design compressor, when the temperature of compressor is set in certain admissible value, in the unimpeded operation of its scope inner compressor.But when unfortunately actual air-conditioning function of use was very many, perhaps each element of air-conditioning can shorten the life-span and the initiating failure of compressor in the time can not fully keeping.
In order to improve the problems referred to above, be U. S. Patent the 5th, 527 in prior art, the overheat protection device (Scroll machine with overheatingprotection) of scroll compressor is arranged in No. 158.In the prior art, temperature sense partly is positioned at the carry-out part upper end, and the gas of finishing output is at the start-up temperature inductive sensor.Simultaneously, the passage that connects from high side to low side has the temperature sense sensor.This temperature sense sensor is designed to and can directly be connected the high pressure side with low voltage side.That is, the field of induction High Temperature Gas just after finishing compression, is positioned on the output stream after the output beginning.Thereby directly sense of control is answered the gas of high temperature and in the switching of high side to low side through hole.
Existing technology is structurally most simple, but the bimetal element of temperature sense is with variation of temperature at this moment, and the sealed high pressure side is led to the low voltage side passage fully, causes the low inferior problem of power so leakage phenomenon takes place.
Simultaneously, utilize intermediate pressure vacuum preventing structure of the prior art, be utilize pressure-activated, so when following of no pressure condition rises the temperature of output gas, can not prevent the damage of press part.
This shows that the high temperature preventing device of above-mentioned existing scroll compressor obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.The problem that exists for the high temperature preventing device that solves scroll compressor, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that the high temperature preventing device of above-mentioned existing scroll compressor exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, high temperature preventing device in the hope of the scroll compressor of founding a kind of new structure, can improve the high temperature preventing device of general existing scroll compressor, make it have more practicability.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is; overcome the defective of the high temperature preventing device existence of existing scroll compressor; and provide a kind of high temperature preventing device of scroll compressor of new structure; technical problem to be solved is to make it utilize the pressure and temperature of the intermediate compression portion that forms according to the fixing effect of spool and spinning reel; when output gas rises to abnormal temperature; temperature sensing device is to the gas reaction of intermediate compression portion; start the parts of blocking output and suction side passage; and startup output gas is attached to the protective gear of rotation section; thereby the high temperature preventing device of the scroll compressor that can protect compressor is provided, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.The high temperature preventing device of a kind of scroll compressor that proposes according to the present invention in the press part 100 that fixedly forms between spool 8 and the spiral spool 9, forms the passage that discharges high-temperature gas.And, be provided with the temperature sense valve 300 that opens and closes passage 200 according to temperature at the intermediate portion of this passage 200.
The high temperature preventing device of aforesaid scroll compressor, delivery outlet 8a one side of wherein said fixedly spool 8 are communicated with and the vertical passage 210 of formation and the horizontal channel 220 that this vertical passage 210 is communicated with and forms.
The high temperature preventing device of aforesaid scroll compressor, wherein said temperature sense valve 300 formula that can move up and down in above-mentioned vertical passage 210 is inserted, and is arranged on switching parts 320 that horizontal channel 220 opens and closes and the upside of above-mentioned vertical passage 210 is provided with in the groove 211.Above-mentioned switching parts 320 change in the intermediate portion combination and according to temperature, and start the temperature sense parts 310 that open and close parts 320.
The high temperature preventing device of aforesaid scroll compressor, wherein said passage 200 be fixedly above the spool 8, attached other passage component, and fixedly forming vertical passage 210 and horizontal channel 220 in spool 8 and the passage component 201.
The high temperature preventing device of aforesaid scroll compressor has the mounting groove that above-mentioned switching parts 320 are installed in the wherein said horizontal channel 220.
The high temperature preventing device of aforesaid scroll compressor, wherein said high temperature inductive means 310 is part-spherical forms.Above-mentioned switching parts 320 are cylindrical, and are the structure that the central fixed hole 311 of temperature sense parts 320 firmly is set in the fixed groove 321 that the downside that opens and closes parts 320 forms.
The high temperature preventing device of aforesaid scroll compressor, the temperature sense parts 310 of wherein said temperature sense valve 300 are to be made by the mutually different two kinds of metals of thermal expansion.
The high temperature preventing device of aforesaid scroll compressor, wherein said temperature sense parts are bimetal element.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The present invention proposes a kind of high temperature preventing device of scroll compressor, and its structure is as follows: the high temperature preventing device of the scroll compressor among the present invention is a hermetic type compressor.The fixedly spool that forms press part and and the spiral spool between in the press part that forms, the position before the output beginning forms certain passage, and the parts that reflect temperature are set on this passage.
Can react the structure of said temperature, select the parts of different heat expansion for use,, start different parts in order to open and close output and suction passage.There are the parts of reflection to select bimetal element or marmem for use to temperature.
The parts of reaction said temperature are installed, and the field of induction High Temperature Gas can not be arranged on the passage that High Temperature Gas links from high side to low side, can be arranged in the field of other formation, promptly the operation of components that changes with temperature opens and closes the parts between high pressure side and the low voltage side.
Particularly, the high temperature preventing device of the scroll compressor among the present invention forms the passage that discharges High Temperature Gas in the press part that fixedly forms between spool and the spiral spool.And the intermediate portion setting of this passage can reflect temperature and open and close the temperature detection valve of passage.
Above-mentioned passage is by forming with the bottom: can move up and down the horizontal channel that formula is inserted at the vertical passage of the fixedly delivery outlet one side press part connection of spool with at this vertical passage; Therefore the said temperature Inductance valve inserts in the above-mentioned vertical passage formula that moves up and down, and opens and closes the switching parts of horizontal channel; Be provided with in the groove at the upside of above-mentioned vertical passage and be provided with, and opening and closing the combination of parts intermediate portion, the bimetal and the temperature sense parts that start according to temperature variation.
Aforesaid the present invention under the situation of not utilizing output gas, according to gas and the pressure that intermediate compression portion forms, prevents the rising of the output temperature degree that forms, thereby improves reliability under improper operating conditions.
Via as can be known above-mentioned, the invention relates to a kind of high temperature preventing device of scroll compressor, it forms the passage of discharging high-temperature gas at the press part that fixedly forms between spool and the spiral spool, then is provided with reaction according to temperature at the intermediate portion of this passage, opens and closes the temperature detection valve of passage.Above-mentioned passage is positioned at a fixedly side of the delivery outlet of spool, and its vertical passage of being communicated with press part vertical mutually and form the horizontal channel.The said temperature Inductance valve on above-mentioned vertical passage, by up and down movably mode insert, and open and close parts, and control the switching parts according to variation of temperature in the intermediate portion combination, the former parts of its manufacturing adopt bimetallic temperature sense parts.Do not utilize output gas of the present invention as this, and the gas and the pressure that directly utilize intermediate compression portion to form, be issued to the purpose of the rising that prevents to export gas temperature, improved reliability in improper operating conditions.
By technique scheme; the high temperature preventing device of the scroll compressor of special construction of the present invention; utilize the pressure and temperature of the intermediate compression portion that forms according to the fixing effect of spool and spinning reel; when output gas rises to abnormal temperature; temperature sensing device is to the gas reaction of intermediate compression portion; start the parts of blocking output and suction side passage, and start the protective gear of output gas, thereby the high temperature preventing device of the scroll compressor that can protect compressor is provided attached to the rotation section.It has above-mentioned many advantages and use value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it structurally or bigger improvement all arranged on the function, have large improvement technically, and produced handy and practical effect, and the high temperature preventing device of more existing scroll compressor has the multinomial effect of enhancement, thereby is suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the structure longitudinal section figure of existing scroll compressor.
Fig. 2 is the rip cutting figure of the scroll compressor of apparatus of the present invention employing.
Fig. 3 and Fig. 4 are that the formation of the high temperature preventing device of scroll compressor among the present invention and the part of effect enlarge sectional drawing.
8: fixing spool 8a: delivery outlet
9: spiral spool 100: press part
200: passage 201: passage component
210: vertical passage 211: upside is provided with groove
220: horizontal channel 221: safety groove
300: temperature sense valve 310: the temperature sense parts
311: fixed hole 320: open and close parts
321: fixed groove
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of high temperature preventing device, structure, feature and the effect thereof of the scroll compressor that foundation the present invention is proposed, describe in detail as after.
See also Fig. 2, Fig. 3 and shown in Figure 4, Fig. 2 is the longitudinal section figure of the scroll compressor of apparatus of the present invention employing, and Fig. 3 and Fig. 4 are that the formation of the high temperature preventing device of scroll compressor among the present invention and the part of effect enlarge sectional drawing.
As shown in the figure, the high temperature preventing device of spool compression of the present invention is that main body comprises following components at the scroll compressor that adopts: inner airtight seal container 1; The upper frame 2 of above-mentioned seal container 1 upper inside combination; The lower box portion 3 of the inner lower combination of above-mentioned seal container 1; Be provided with and possess the motor 6 of stator 4 and rotor 5 between above-mentioned upper frame 2 and the lower frame 3.
The center of above-mentioned rotor 5 combines with the crankshaft 7 that rotates with the rotation of rotor 5; Above-mentioned upper frame 2 is fixed with fixedly spool 8; Rotatable spiral spool 9 is meshed in the bottom of said fixing spool 8; The lower central part of above-mentioned spiral spool 9 is in the position at the center that breaks away from above-mentioned crankshaft 7, is provided with centrifugal 7a in the upper end of crankshaft 7 and slide bushing 10 to combine.
The top of the fixedly spool 8 of above-mentioned seal container 1 has possessed the output chamber 21 that has residual high pressure gas to high pressure sub-argument type baffler 20 homonymies.Fixedly there is delivery outlet 8a the centre of spool 8, and simultaneously, its upside combines delivery valve 22, and a side of upper frame 2 is provided with refrigerant suction pipe 11, and the opposite side of output chamber 20 is provided with the output tube 12 of output compression back refrigerant gas.
The high temperature preventing device of the scroll compressor that relates among the present invention is the passage 200 of purpose in the press part 100 formation discharging High Temperature Gas that fixedly form between spool 8 and the spiral spool 9 like this.The intermediate portion of this passage 200 has temperature sensor and opens and closes the temperature sense valve 300 of passage 200.
As shown in FIG., the delivery outlet 8a of said fixing spool 8 has with lower channel: side press part connection and the vertical passage 210 that forms and connection and formation horizontal channel 220 in this vertical passage 210.300 of said temperature Inductance valves are can be inserted into up or down in above-mentioned vertical passage 210, by switching parts 320 that open and close horizontal channel 220 and the upside that is arranged on above-mentioned vertical passage 210 groove 211 is set, it opens and closes parts 320 and is combined in the intermediate portion, and change with temperature, form thereby start the temperature sense parts that open and close parts.
Accompany the upper end portion of above-mentioned switching parts 320 in the above-mentioned horizontal channel 220, thereby, form safety groove in order to make horizontal channel 220 secure closed.
Said temperature inductive means 310 is part-spherical forms, and 320 of above-mentioned switching parts are cylindrical, and the fixed groove 321 that forms in the lower side that opens and closes parts 320 tightens the central fixed hole 311 that temperature sense parts 310 are set and fixed.
Said temperature inductive means 310 is selected thermal expansion two kinds of different parts that metal is done mutually for use, opens and closes parts in order to open and close above-mentioned passage 200 and to start.In the said temperature inductive means 310, for example to also can use marmem to select bimetal element for use.
Above-mentioned passage 200 is in said fixing spool 8, the form that can utilize vertical passage 210 and horizontal channel 220 directly to form, also can fixedly adhere to other passage component 201 above the spool 8, in fixedly spool 8 and passage component 201, use the state of vertical passage 210 and horizontal channel 220.
The high temperature preventing device of the scroll compressor as the present invention, before beginning, the temperature of the pressurized gas that forms in compression field is by temperature sense parts 310 inductions of the temperature sense valve 300 that is provided with in the vertical passage 210 of said fixing spool 8.In normal course of operation, as shown in Figure 3, open and close parts 320 sealing horizontal channels 220, but when abnormal running, promptly during abnormal high temperature, as shown in Figure 4, the bimetal element distortion of temperature induction part parts 310 simultaneously, move down opening and closing parts 320, like this since, open horizontal channel 220 and make High Temperature Gas enter low voltage section L from high-voltage section H.
Simultaneously, when the gas of the High Temperature High Pressure of such a high-voltage section H was discharged into low voltage section L, in order to protect the motor 6 of seal container 1 inside, heating also started for this reason and therefore the motor protection device that is provided with stops the operation of compressor.
Also have, after compressor stops, along with its said temperature of cools down detects valve 200 reinstatement attitudes, and pressure valve 300 attitude that also restores to the original state.
According to such operating principle, the temperature in the control high-voltage section exceeds the appropriate value of prior setting, thereby plays a protective role.
In the invention process process, though the optimum position of the part of the induction high-temperature gas of said temperature Inductance valve 300 is the passage 200 that connects from high side to low side, but not at this passage 200, and forming part in addition, and in this part, also can adopt vary with temperature and change the temperature sense parts, operate in the switching parts that open and close between high pressure side and the low voltage side.
The technological innovation of the high temperature preventing device of the scroll compressor of the present invention that above-mentioned structure like this constitutes all has many saving graces for technician of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (8)
1, a kind of high temperature preventing device of scroll compressor, it is characterized in that: in the press part (100) that fixedly forms between spool (8) and the spiral spool (9), form the passage of discharging high-temperature gas, and the intermediate portion in this passage (200) is provided with the temperature sense valve (300) that opens and closes passage (200) according to temperature.
2, the high temperature preventing device of scroll compressor according to claim 1, delivery outlet (8a) side that it is characterized in that wherein said fixedly spool (8) is communicated with and the vertical passage (210) of formation and the horizontal channel (220) that this vertical passage (210) is communicated with and forms.
3, the high temperature preventing device of scroll compressor according to claim 2, it is characterized in that wherein said temperature sense valve (300) formula that can move up and down inserts in above-mentioned vertical passage (210), and be arranged on switching parts (320) that horizontal channel (220) opens and closes and the upside of above-mentioned vertical passage (210) is provided with in the groove (211).Above-mentioned switching parts (320) change in the intermediate portion combination and according to temperature, and start the temperature sense parts (310) that open and close parts (320).
4, the high temperature preventing device of scroll compressor according to claim 2, it is characterized in that wherein said passage (200) is fixedly adhering to passage component (201) above the spool (8), and fixedly forming vertical passage (210) and horizontal channel (220) in spool (8) and the passage component (201).
5, the high temperature preventing device of scroll compressor according to claim 2 is characterized in that the mounting groove that above-mentioned switching parts (320) are installed is arranged in the wherein said horizontal channel (220).
6, the high temperature preventing device of scroll compressor according to claim 3 is characterized in that wherein said high temperature inductive means (310) is a part-spherical form.Above-mentioned switching parts (320) are cylindrical, and are the structure that the central fixed hole (311) of temperature sense parts (310) firmly is set in the fixed groove (321) that the downside that opens and closes parts (320) forms.
7, the high temperature preventing device of scroll compressor according to claim 6, the temperature sense parts (310) that it is characterized in that wherein said temperature sense valve (300) are to be made by the mutually different two kinds of metals of thermal expansion
8, the high temperature preventing device of scroll compressor according to claim 7 is characterized in that wherein said temperature sense parts are bimetal element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410096517 CN1782412A (en) | 2004-11-30 | 2004-11-30 | High temperature preventing device of scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410096517 CN1782412A (en) | 2004-11-30 | 2004-11-30 | High temperature preventing device of scroll compressor |
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| Publication Number | Publication Date |
|---|---|
| CN1782412A true CN1782412A (en) | 2006-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410096517 Pending CN1782412A (en) | 2004-11-30 | 2004-11-30 | High temperature preventing device of scroll compressor |
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| Country | Link |
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| CN (1) | CN1782412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112672724A (en) * | 2018-09-17 | 2021-04-16 | 黄国伦 | Pain exciting point and acupoint stimulator |
-
2004
- 2004-11-30 CN CN 200410096517 patent/CN1782412A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112672724A (en) * | 2018-09-17 | 2021-04-16 | 黄国伦 | Pain exciting point and acupoint stimulator |
| CN112672724B (en) * | 2018-09-17 | 2023-12-01 | 黄国伦 | Pain point and acupoint stimulator |
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