CN201449093U - Detector for refrigerating cycle - Google Patents
Detector for refrigerating cycle Download PDFInfo
- Publication number
- CN201449093U CN201449093U CN2006900001022U CN200690000102U CN201449093U CN 201449093 U CN201449093 U CN 201449093U CN 2006900001022 U CN2006900001022 U CN 2006900001022U CN 200690000102 U CN200690000102 U CN 200690000102U CN 201449093 U CN201449093 U CN 201449093U
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- Prior art keywords
- cooling medium
- mentioned
- detector
- thermistor
- freeze cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a detector for the refrigerating cycle (1), which is provided with a shell part (2), two cooling medium inflow and outflow pipes (5 and 6), more than one lead parts (8a, 8b and 8c) and more than one thermistances (9t and 9w), wherein the shell part tightens and seals a cover part (3) presenting in a circular arch shape and a base part (4) presenting in a flat shape; the two cooling medium inflow and outflow pipes (5 and 6) are respectively inserted inside two cooling medium inflow and outflow through holes (4a and 4b) which are arranged on the base part (4) and are encapsulated in an air-tight way, and the two cooling medium inflow and outflow pipes are vertically installed corresponding to the base part (4); and the more than one lead parts (8a, 8b and 8c) are inserted inside more than one lead part insertion pores (4c, 4d and 4e) which are arranged on the base part (4) and are encapsulated through a glass (7) in an air-tight and insulation way; and the more than one thermistances (9t and 9w) are arranged inside the shell part (2), and at least one terminal are connected with the more than one lead parts (8a, 8b and 8c).
Description
Technical field
The utility model relates to the detector that a kind of freeze cycle is used, and is installed in the pipe arrangement in the freeze cycle, detects the physical quantity (temperature and pressure etc.) of the cooling medium of circulation.
Background technology
When detection is circulated in the temperature of the cooling medium in the pipe arrangement in the freeze cycle, generally be at the outside of pipe arrangement mounting temperature sensor, detect the temperature of cooling medium indirectly across the tube wall of pipe arrangement.Because the situation of this structure is an indirect detection, so do not claim to have the higher detection precision.
In addition, when detecting the flow (pressure) of cooling medium, need directly to detect, so detecting element must be arranged on the inside of pipe arrangement.As an example of the structure that directly detects like this, the known structure that has patent documentation 1 to be put down in writing.
Patent documentation 1: the spy opens the 2005-172658 communique
Patent documentation 2: the spy opens flat 8-189847 communique
Patent documentation 3: the spy opens flat 4-23393 communique
In the structure of above-mentioned patent documentation 1, in advance detecting element (ultrasonic vibrator) is installed on the element assembly (relaying terminal and fuselage etc.).And, in the time of in detecting element being installed in the pipe arrangement that cooling medium circulates, by the opening on the tube wall that is arranged on pipe arrangement this detecting element being stretched out in pipe arrangement detecting element, and element assembly screw thread is fixed on the periphery of pipe arrangement.
But, in said structure, because be the mode that the element assembly is installed in the periphery of pipe arrangement, i.e. the mode of back assembling, institute is so that complex structure, and the seal construction that makes the cooling medium of the high pressure that is used to make freeze cycle not leak becomes complicated.In addition, because be contained in mist of oil in the cooling medium, so there is the problem that detects unstable properties attached on the detecting element.In addition, patent documentation the 2, the 3rd illustrates the communique of the technology relevant with the utility model.Patent documentation 2 shows by soldering pipe arrangement is installed in structure on the basal part, and patent documentation 3 shows the structure via the glass capsulation lead-in wire.
The utility model content
The detector that provides a kind of freeze cycle to use is provided the purpose of this utility model, is the structure of the physical quantity that directly detects cooling medium, and can make and simplify the structure, and in addition, can prevent as far as possible that mist of oil is attached on the detecting element.
The utility model is in a kind of pipe arrangement that is installed in the freeze cycle, detect the detector that the freeze cycle of physical quantity of the cooling medium of circulation is used, and it is characterized by, and has: shell portion will for the cover portion of dome shape and flat basal part is fastening seals; Two through holes that the cooling medium inflow and outflow is used are arranged on the above-mentioned basal part; Two cooling medium inflow and outflow pipes are inserted respectively and are led in the through hole that above-mentioned two cooling medium inflow and outflows are used and encapsulated airtightly, and vertically are mounted with respect to above-mentioned basal part; More than one leading part inserts and uses pore, is arranged on the above-mentioned basal part; More than one leading part is inserted into above-mentioned more than one leading part and inserts with being encapsulated by airtight and insulation ground in the pore and via glass; More than one thermistor is arranged in the above-mentioned shell portion and at least one terminal is connected with above-mentioned more than one leading part.
The detector that freeze cycle of the present utility model is used constitutes, has the fastening and shell portion of sealing of the cover portion that will be dome shape and flat basal part, and two cooling medium inflow and outflow pipes are inserted lead in the through hole that two cooling medium inflow and outflows that are arranged on basal part are used and encapsulation airtightly, and more than one leading part is inserted into the more than one leading part insertion that is arranged on basal part to be used in the pore and the airtight and insulation ground encapsulation via glass, and the terminal of more than one thermistor is connected with this more than one leading part, therefore, it is the structure that directly detects the physical quantity of cooling medium, and can make and simplify the structure, in addition, can prevent as much as possible adhering to of mist of oil.
Description of drawings
Fig. 1 is the longitudinal section of the detector of expression the 1st embodiment of the present utility model.
Fig. 2 is the upward view of detector.
Fig. 3 is the loop diagram of freeze cycle.
Fig. 4 is the frame loop diagram of measuring physical.
Fig. 5 is the electric loop figure of the concrete loop example of expression measuring physical.
Fig. 6 is the performance plot that expression is used for the dependency relation of measuring physical, actual coolant temperature and output voltage.
Fig. 7 is the performance plot that expression is used for the dependency relation of measuring physical, actual pressure cooling medium and output voltage.
Fig. 8 is the figure that is equivalent to Fig. 1 of expression the 2nd embodiment of the present utility model.
Fig. 9 is the figure that is equivalent to Fig. 1 of expression the 3rd embodiment of the present utility model.
Figure 10 is the figure that is equivalent to Fig. 1 of expression the 4th embodiment of the present utility model.
Figure 11 is the minor loop figure of freeze cycle of the connection status of expression detector.
Figure 12 is the figure that is equivalent to Figure 11 of expression the 5th embodiment of the present utility model.
Description of reference numerals
1 detector
2 shell portions
3 cover portions
4 basal parts
The through hole that 4a, the inflow and outflow of 4b cooling medium are used
4c, 4d, 4e leading part insert uses pore
5,6 cooling medium inflow and outflow pipes
7 glass
8a, 8b, 8c leading part
9t, 9w thermistor
10 cooling medium loops
11 compressors
12 condensers
15 heat exchangers
30 measuring physicals
31 signal conditioning circuits
40 controllers
45 handling parts
The specific embodiment
Illustrate in greater detail the utility model with reference to accompanying drawing.
Fig. 1 to Fig. 7 represents the 1st embodiment of the present utility model.At first, Fig. 3 is an integrally-built block diagram of roughly representing to be assembled with the freeze cycle C of the detector 1 that the freeze cycle of present embodiment uses.As shown in Figure 3, freeze cycle C has the cooling medium loop 10 of the ring-type that makes cooling medium R circulation.Among Fig. 3, cooling medium R is represented by the arrow of the dotted line of representing circulating direction.Cooling medium loop 10 has compressor 11, condenser 12, cooling medium drier 13, electric expansion valve 14, heat exchanger (cooler) 15 and the reservoir 16 that is connected in series successively via the cooling medium pipe arrangement as basic structure.
Near condenser 12, be provided with the condenser fan 17 that air cooling is used.In addition, hot gas bypass circuit 18 is connected in series capillary 19 and control valve 20.Be connected between one end of this bypass circulation 18 and compressor 11 and the condenser 12, be connected between the other end and electric expansion valve 14 and the heat exchanger 15.And then, be connected with the system of being cooled 25 at the secondary side 15s of heat exchanger 15.At this moment, cooling medium 10 is connected with the primary side 15f of heat exchanger 15.
Thus, the cooling water W of the object that is cooled that cooling is equipped with in the system of being cooled 25 (with reference to the arrow of solid line), in the secondary side 15s of heat exchanger 15 and the circulation between the system 25 that is cooled, and by be cooled in the heat exchange of the cooling medium R of the primary side 15f of heat exchanger 15 circulation.At this moment, the basic functions of cool cycles C (action) is identical with known freeze cycle.And, in the cooling medium stream Ka of the discharge side of the compressor 11 of such freeze cycle C, be provided with detector 1.
As shown in Figures 1 and 2, the shell portion 2 of detector 1 comprises the cover portion 3 that is dome shape and and flat basal part 4 capsul portion 2 in fastening with the peristome of this cover portion 3.Cover portion 2 and basal part 4 for example are made of iron plate (SPCC), and both are for example fastened by electric welding.
On basal part 4, be provided with through hole 4a, 4b that two cooling medium inflow and outflows are used.Two cooling medium inflow and outflow pipes 5,6 are inserted respectively and are passed among through hole 4a, the 4b that these two cooling medium inflow and outflows use, and are encapsulated airtightly via glass 7.And two cooling medium inflow and outflow pipes 5,6 are vertically installed with respect to flat basal part 4.
In addition, on basal part 4, at position, with through hole 4a, 4b is mutually liftoff for example is provided with more than one that 3 leading part inserts with pore 4c, 4d, 4e near the upper side among Fig. 2.Through hole 4a, 4b are provided in the position near the downside slightly among Fig. 2 as shown in Figure 2.In addition, the rib 4f of reinforcement usefulness is darted on the basal part 4 by top in Fig. 1.Sell leading part 8a, the 8b, the 8c that constitute by 3 lead-in wires and be inserted into above-mentioned 3 leading parts insertion with being encapsulated by airtight and insulation ground among pore 4c, 4d, the 4e and via glass 7.
And then, be equipped with more than one for example two thermistor 9t, 9w in the inside of shell portion 2.One of them thermistor 9t, the terminal of one side (left terminal among Fig. 1) is connected with leading part 8a, and the opposing party's terminal is connected with leading part 8b as common lead.Another thermistor 9w, the terminal of one side (right terminal among Fig. 1) is connected with leading part 8c, and the opposing party's terminal is connected with leading part 8b as common lead.Above-mentioned two thermistor 9t, 9w face cooling medium R in shell portion 2.
On the other hand, three leading part 8a, 8b that stretch out to the outside of shell portion 2,8c are connected with controller 40 as shown in Figure 3.Constitute measuring physical 30 by this controller 40 and above-mentioned detector 1.
Then, the concrete structure of above-mentioned measuring physical 30 is described with reference to Fig. 4～Fig. 7. be built in two thermistor 9t in the above-mentioned detector 1, the thermistor 9t of a side among the 9w plays a role as the detector unit that detects coolant temperature, the opposing party's thermistor 9w plays a role as the flow detecting element that detects cooling medium consumption. above-mentioned two thermistor 9t, 9w constitutes detector unit portion 9. under the situation of this structure, use thermistor 9t as detector unit, thereby following advantage is arranged: can easily be formed in these two aspect all only detector unit portions 9. of cost and accuracy of detection
And, the hot rolling production line (hot line) of the end of thermistor 9t (being the leading part 8b of detector 1) and dc source (for example DC12[V]) 41 is connected, and the other end (being the leading part 8a of detector 1) is connected with auxiliary voltage adjusting portion 42 via resistance R 1.In addition, connect resistance R 2 in parallel with respect to thermistor 9t.At this moment, the resistance variations based on variations in temperature of the selected thermistor 9t of resistance R 1 and R2 is the resistance of straight line as far as possible.
On the other hand, the two ends of resistance R 1 are connected with the resistance value test section 43 that detects the resistance value of thermistor 9t based on the terminal voltage Vd (detection signal Sd) of resistance R 1.The outlet side of resistance value test section 43 is connected with the output voltage adjusting portion 44 of the size of the output (voltage) of regulating resistance value test section 43.From this output voltage adjusting portion 44 output output voltage V a (output signal So), this output voltage V o is provided to handling part 45.
Thereby auxiliary voltage adjusting portion 42, resistance value test section 43 and output voltage adjusting portion 44 constitute carries out the signal conditioning circuit 31 that signal is handled to the detection signal Sd (terminal voltage Vd) based on the testing result of detector unit portion 9.This signal conditioning circuit 31 constitutes the physical quantity Md of testing agency with the detector unit portion 9 of containing thermistor 9t.In addition, constitute controller 40 by signal conditioning circuit 31 and handling part 45.
Figure 5 illustrates the loop example of signal conditioning circuit 31.Among this figure, OP1, OP2, OP3 represent operational amplifier, and Rv1 represents the variable resistor of output voltage adjusting usefulness, and R11～R19 represents resistance (fixed resistance).In addition, among Fig. 5, mark identical symbol and make this structure clear and definite on the part identical with Fig. 4.
On the other hand, handling part 45 has coolant temperature transformation component 34 and pressure cooling medium transformation component 35 as shown in Figure 4, and above-mentioned output voltage V a is provided respectively to these coolant temperature transformation components 34 and pressure cooling medium transformation component 35.Coolant temperature transformation component 34, the database D t that use utilizes the dependency relation of the output voltage V a (output signal So) of actual coolant temperature Trd and signal conditioning circuit 31 to try to achieve in advance has the function that the output voltage V a that will be provided from signal conditioning circuit 31 is converted to coolant temperature Tr.
Fig. 6 is coolant temperature Trd[℃ of reality that the basis of database Dt is done in expression] with output voltage V a[V] the performance plot of dependency relation.In this Fig. 6, Tra represents water temperature 35[℃] time performance plot, Trb represents water temperature 20[℃] time performance plot, Trc represents water temperature 5[℃] time performance plot.In addition, water temperature is by the temperature of the cooling water W of heat exchanger shown in Figure 2 15 coolings.
Pressure cooling medium transformation component 35, use in advance the database D p that tries to achieve by the dependency relation of the output voltage V a (output signal So) of the pressure cooling medium Prd of reality and signal conditioning circuit 31, have the function that the output voltage V a that will be provided from signal conditioning circuit 31 is transformed to pressure cooling medium Pr.Fig. 7 is the pressure cooling medium Prd[MPa of reality that is expressed as the basis of database D p] with output voltage V a[V] the performance plot of dependency relation.
In Fig. 7, Pra represents water temperature 32[℃] performance plot when (the rotating speed Ur:2500[rpm of condenser fan 17]), Prb represents water temperature 20[℃] performance plot when (Ur:1710[rpm]), and Prc represents water temperature 5[℃] performance plot when (Ur:900[rpm]).In addition, water temperature is by the temperature of the cooling water W of heat exchanger shown in Figure 2 15 coolings.In addition, compressor 11 makes rotating speed and low pressure certain, the rotating speed Ur of condenser fan 17 is changed, thereby make pressure cooling medium Prd[MPa] change, cooling medium Tr is 15[℃].
Thereby, handling part 45 has can carry out the computer function that various data are handled, the software that promptly has the hardware of CPU, RAM and ROM etc. and carry out the handling procedure etc. of above-mentioned conversion process. on the other hand, the output of coolant temperature transformation component 34 and pressure cooling medium transformation component 35 is provided to efferent 46 and shows the output processing of necessity of processing and stores processor etc. and in addition, coolant temperature transformation component 34 and pressure cooling medium transformation component 35 constitute physical quantity mapping device Mc.
In addition, in controller 40, the 47th, liquid backflow test section uses in the time of can be on the cooling medium stream Kb in the suction side that detector 1 is connected compressor 11.The liquid backflow phenomenon is that the cooling medium R that do not carry out heat exchange fully becomes vaporific even aqueous and is back to the phenomenon of compressor 11, when the liquid backflow phenomenon takes place, vaporific cooling medium R is aqueous by compressor 11 boil down tos, therefore becomes the failure cause of compressor 11.Detector 1 is because thermistor 9w directly faces cooling medium R, so can easily detect the liquid backflow phenomenon.That is, if because the liquid backflow phenomenon causes vaporific cooling medium R to return, it will paid on thermistor 9w.The cooling medium R that is paying cools off thermistor 9w hastily when gasification.Its result, output voltage V s reduces sharp, therefore can detect the liquid backflow phenomenon by the size that monitors this output voltage V s.
Thereby, in backflow test section 47, preestablish the threshold value that can detect the liquid backflow phenomenon, if output voltage V s arrives this threshold value and then detects to the liquid backflow phenomenon is arranged.And,, can directly stop to control unusual processing of the running etc. of compressor 11 if detect the liquid backflow phenomenon and then detection signal is provided to efferent 46.
Be used for the opposing party's the thermistor 9w of the detection of cooling medium consumption, constitute loop 51 with resistance R 3, R4, R5, the tie point of the tie point of resistance R 3 and R5 and thermistor 9w and resistance R 4 is connected with resistance value test section 52 respectively.In addition, the tie point of thermistor 9w and resistance R 3 is connected on the hot rolling production line of dc source 41, and the tie point of resistance R 4 and R5 is connected with ground wire via transistor Q (colelctor electrode emit during).
On the other hand, the outlet side of resistance value test section 52 is connected with heating current configuration part 53, and the outlet side of heating current configuration part 53 is connected with the base stage of transistor Q.And resistance R 4 is provided to handling part 45 with the tie point current potential (output voltage V s) of R5.The loop example of resistance value test section 52 shown in Figure 5 and heating current configuration part 53.Among Fig. 5, OP4, OP5 represent operational amplifier, and Rv2 represents the variable resistor of electric current adjusting usefulness, and R21～R29 represents resistance (fixed resistance).In addition, on the part identical, mark identical symbol and make this structure clear and definite with Fig. 4.
On the other hand, handling part 45 has cooling medium consumption transformation component 54, and above-mentioned output voltage V s is provided to cooling medium consumption transformation component 54.In cooling medium transformation component 54, output voltage V s is transformed to cooling medium consumption, and is provided to efferent 46.Cooling medium consumption transformation component 54 uses in advance the tables of data Df that is tried to achieve by the dependency relation of the cooling medium consumption of reality and output voltage V s, has the function that output voltage V s is transformed to cooling medium consumption.In addition, when conversion, consider the parameter of water temperature, coolant temperature etc. as required.
Then, with reference to each figure the using method of above-mentioned measuring physical 30 and the action of critical piece are described.
At first, detector 1 is connected with freeze cycle C.Figure 3 illustrates detector 1 is connected in series situation on the cooling medium stream Ka of the discharge side of compressor 11.At this moment, the half-way of cutting apart cooling medium stream Ka, as shown in Figure 1, on a side cooling medium stream Kaf, connect a side cooling medium inflow and outflow pipe 5, and on the opposing party's cooling medium stream Kar, connect the opposing party's cooling medium inflow and outflow pipe 6.At this moment, when managing 5,6, also can use the method for known connection cooling medium stream (pipe) such as soldering and welding with stream Kaf, when Kar is connected.
And if make freeze cycle C action, then cooling medium R circulates in cooling medium loop 10, and cooling fluid W is by heat exchanger 15 coolings (temperature adjustment).In addition, the output pressure (pressure cooling medium Pr) of the temperature of cooling medium R (coolant temperature Tr) and cooling medium R is detected by the measuring physical 30 of present embodiment.Promptly, the cooling medium R that discharges by the action of freeze cycle C and from compressor 11, circulation and flowing in the shell portion 2 of detector 1 in cooling medium stream Kaf and cooling medium inflow and outflow pipe 5, and circulation and get back to condenser 12 sides in cooling medium inflow and outflow pipe 6 and cooling medium stream Kar.
In shell portion 2, two thermistor 9t, 9w face cooling medium R, so cooling medium R directly contacts with thermistor 9t, 9w, and the resistance value of thermistor 9t, 9w and coolant temperature Tr change accordingly.At this moment, for the additional dc voltage of thermistor 9t (be illustrated as 12[V]), therefore, electric current flows by the shunt circuit of thermistor 9t and resistance R 1 and then by the resistance R 1 that is connected in series from dc source 41.
On the other hand, regulate the voltage of usefulness, for example 9[V for the additional auxiliary voltage of resistance R 1 from auxiliary voltage adjusting portion 42], therefore the auxiliary voltage with respect to thermistor 9t is 3[V to the maximum], can suppress the self-heating of thermistor 9t effectively.Thus, be the terminal voltage Vd (detection signal Sd) of resistance R 1 and detecting and the proportional voltage of the resistance value of thermistor 9t by resistance value test section 43 based on the resistance value of thermistor 9t, and this voltage is provided to output voltage adjusting portion 44.In addition, the variable resistance Rv1 (with reference to Fig. 5) that is regulated usefulness by built-in output voltage from 44 outputs of output voltage adjusting portion has regulated big or small output voltage V a (output signal So).
On the other hand, the output voltage V a from 44 outputs of output voltage adjusting portion is provided to coolant temperature transformation component 34 and pressure cooling medium transformation component 35 both sides.In coolant temperature transformation component 34, read the coolant temperature Tr corresponding from database (tables of data) Dt, and be provided to efferent 46 with output voltage V a.Thus, in efferent 46, the coolant temperature Tr of acquisition is shown in real time by digital display part, and is provided to control system as control data etc.In addition, be stored in the storage portion as historical data as required.Under illustrative situation, coolant temperature Tr is used as Monitoring Data.That is, monitor coolant temperature Tr,, the running of compressor 11 is stopped if it reaches predefined boundary temperature.Thus, can realize the protection of compressor 11.
In addition, in pressure cooling medium transformation component 35, read the pressure cooling medium Pr corresponding from database (tables of data) Dr, and be provided to efferent 46 with output voltage V a.Thus, in efferent 46, the pressure cooling medium Pr of acquisition is shown in real time by digital display part, and is provided to control system as control data etc.In addition, be stored in the storage portion as historical data as required.Under illustrative situation, pressure cooling medium Pr is used as control data, the rotating speed of control condenser fan 17 and compressor 11 with the big or small corresponding of this pressure cooling medium Pr.
Thus, measuring physical 30 according to such present embodiment, constitute, obtain output signal So (Va) by detection signal Sd (Vd) based on the testing result that the detector unit portion 2 that can detect coolant temperature Tr is installed, and then the So conversion of this output signal tried to achieve coolant temperature Tr and pressure cooling medium Pr, therefore, can utilize single detector unit portion 2 to detect coolant temperature Tr and pressure cooling medium Pr both sides.Thereby, do not need to detect the pressure sensor of the special use of pressure cooling medium Pr, can realize that the significantly cost of component costs and assembly cost reduces, and, can guarantee unfavorable in the structure design of layout etc. of the assembling space and the distribution that reduces by half.
And, with cooling medium R detector unit portion 2 is installed with facing, therefore, can directly detect coolant temperature Tr, can improve accuracy of detection and control accuracy more, and directly contact cooling medium R, therefore for example can easily obtain the coolant temperature Tr information in addition of liquid backflow phenomenon and cooling medium consumption etc.In addition, the coolant temperature transformation component 4 that has carried out conversion because used database D t, (try to achieve, so can easily obtain the reliably coolant temperature Tr of (correctly) by more easy mechanism by output voltage V dependency relation a) by the coolant temperature Trd of reality and the output signal So of signal conditioning circuit 3 for described database D t.And, the pressure cooling medium transformation component 5 that has carried out conversion because used database D p, (try to achieve, so can easily obtain the reliably pressure cooling medium Pr of (correctly) by more easy mechanism by output voltage V dependency relation a) by the pressure cooling medium Prd of reality and the output signal So of signal conditioning circuit 5 for described database D p.
In addition, in the above-described embodiments, detector 1 has and will be the fastening and shell portion 2 of sealing of the cover portion 3 of dome shape and flat basal part 4, with two cooling medium inflow and outflow pipes 5, the 6 slotting through hole 4a that use in two cooling medium inflow and outflows that are arranged on the basal part 4 that lead to, encapsulate among the 4b and airtightly, and with three leading part 8a, 8b, 8c is inserted into three leading parts insertion pore 4c that are arranged on the basal part 4,4d, airtight and the insulation ground encapsulation among the 4e and via glass, at these three leading part 8a, 8b, be connected with two thermistor 9t on the 8c, the terminal of 9w. thus, the structure of the physical quantity (temperature and flow) that directly detects cooling medium R can be become, and simplifying the structure of detector 1 integral body can be made.
Particularly in the detector 1 of said structure, the cooling medium that flows in shell portion 2 from cooling medium inflow and outflow pipe 5 contacts with the inner surface of the cover portion 3 of circular arch shape and flows, and then conversion 180 degree directions, flows out by cooling medium inflow and outflow pipe 6.Therefore, owing to cooling medium flow that and the inner surface of the cover portion 3 of circular arch shape contacts and cooling medium is changed direction hastily flows, the mist of oil that is contained in the trace in the cooling medium is separated.Thereby, make mist of oil be difficult for paying on thermistor 9t, 9e, can carry out stable mensuration by thermistor 9t, 9w.
And, in the detector 1 of said structure, as shown in Figures 1 and 2, thermistor 9t, 9w are disposed discretely from the straight line between two through hole 4a, the 4b of concatenating group bottom 4, therefore, flowing of cooling medium can directly not contact with thermistor 9t, 9w, so further lower mist of oil adhering to thermistor 9t, 9w.
In addition, in the detector 1 of said structure, utilize glass 7 (glass capsulation) with leading part 8a, 8b, 8c and cooling medium inflow and outflow pipe 5,6 equidirectionals be installed on the flat basal part 4, therefore, can utilize heating once simultaneously leading part 8a, 8b, 8c and cooling medium inflow and outflow pipe 5,6 to be encapsulated in basal part 4 based on heating furnace.Therefore, can make, can reduce manufacturing cost by simple manufacturing process.
In addition, when for example being installed in cooling medium inflow and outflow pipe 5,6 on the basal part 4, after the operation of carrying out soldering, must carry out operation, have manufacturing process's complicated problems leading part 8a, 8b, 8c glass capsulation by soldering.On the contrary, after carrying out leading part 8a, 8b, 8c are carried out the operation of glass capsulation, carry out the operation of soldering cooling medium inflow and outflow pipe and when installing, manufacturing process's complexity, heat wave during soldering simultaneously and glass capsulation part and may cause the harmful effect of thermal shock etc.In addition, divide other parts to form and assembling afterwards, then will become the structure of the such complexity of conventional art (patent documentation 1) if utilize.
Fig. 8 shows the 2nd embodiment of the present utility model.In addition, the identical symbol of mark on the structure identical with the 1st embodiment.In the 2nd embodiment, as shown in Figure 8, in the mode of not stretching out cooling medium inflow and outflow pipe 5,6 is set to shell portion 2 inside with respect to flat basal part 4, and, dispose cooling medium inflow and outflow pipe 5,6 (promptly up and down configuration detector 1) on the contrary and be installed among cooling medium stream Kaf, the Kar (pipe arrangement) among the freeze cycle C in the mode of extending downwards.According to this structure, discharge to the outside of detector 1 by cooling medium inflow and outflow pipe 5,6 by the oil of the flow separation of cooling medium.That is, be difficult for being trapped in the shell portion 2 by the oil of the flow separation of cooling medium, and be easy to discharge this oil to the outside of shell portion 2.In addition, the structure of the 2nd embodiment outside above-mentioned is the structure identical with the 1st embodiment.
Fig. 9 illustrates the 3rd embodiment of the present utility model.In addition, the identical symbol of mark on the structure identical with the 1st embodiment.In the 3rd embodiment, as shown in Figure 9, a leading part 8a only is set, and a thermistor 9t only is set in shell portion 2.Under the situation of this structure, the side's of thermistor 9t terminal is connected with leading part 8a, and the opposing party's terminal is connected with basal part 4.
And the structure of the 3rd embodiment outside above-mentioned is the structure identical with the 1st embodiment.Thereby, in the 3rd embodiment, can obtain the action effect roughly the same with the 1st embodiment.Particularly in the 3rd embodiment, the number that makes thermistor 9t is one, and to make leading part 8a be one, therefore, can make to simplify the structure.
Figure 10 and Figure 11 illustrate the 4th embodiment of the present utility model. in addition, the identical symbol of mark on the structure identical with the 1st embodiment. in the 4th embodiment, as shown in figure 10, for example, be provided with the detection stream Ks that arrives another cooling medium stream Kc from cooling medium stream Ka branch, and the cooling medium inflow and outflow pipe 5 that is connected with detector 1 in this detection with the half-way of stream Ks and cooling medium inflow and outflow pipe 6. figure 11 illustrates the concrete example that is connected of the 4th embodiment.
Figure 11 shows the example midway of the cooling medium stream Ksf of branch that is connected in parallel between the half-way Kem of inside cooling medium stream Ke of the first cooling medium stream Ka that detector 1 is connected in the discharge side of compressor 11 and condenser 12.In addition, in inner cooling medium stream Ke, be provided with heat release fin 12f.In addition, in illustrative freeze cycle C, be connected with bypass circulation 18, therefore, be illustrated in the situation that goes up the connection cooling medium stream Ksf of branch with respect to the tie point (branch point) of this bypass circulation 18 for the cooling medium stream Kay in downstream by solid line.And then the tie point that is illustrated in respect to bypass circulation 18 by dummy line (double dot dash line) is the situation of the last cooling medium stream Ksf of branch of connection of cooling medium stream Kax of upstream side.
And the structure of the 4th embodiment outside above-mentioned is the structure identical with the 1st embodiment.Thereby, in the 4th embodiment, can obtain the action effect roughly the same with the 1st embodiment.Particularly in the 4th embodiment, be provided with the cooling medium stream Ksf of branch, thereby can improve the accuracy of detection of thermistor 9t, 9w, and following advantage is arranged: even if in thermistor 9t, 9w streaming current and also can reduce electric current when using always.
Figure 12 illustrates the 5th embodiment of the present utility model.In addition, the identical symbol of mark on the structure identical with the 4th embodiment.In the 5th embodiment, as shown in figure 12, the cooling medium stream Ksd of branch that is connected in parallel between the second cooling medium stream Kc of the first cooling medium stream Ka that detector 1 is connected in the discharge side of compressor 11 and the outflow side of condenser 12 midway.At this moment, the tie point that is illustrated in respect to bypass circulation 18 by solid line is the structure of the last cooling medium stream Ksd of branch of connection of cooling medium stream Kay in downstream.And the tie point that is illustrated in respect to bypass circulation 18 by dummy line (double dot dash line) is the structure of the last cooling medium stream Ksd of branch of connection of cooling medium stream Kax of upstream side.
And the structure of the 5th embodiment outside above-mentioned is the structure identical with the 4th embodiment.Thereby, in the 5th embodiment, can obtain the action effect roughly the same with the 4th embodiment.
As mentioned above, as with detector 1 and freeze cycle C ways of connecting, at least for example understand: the Fig. 1 that is connected in series with respect to cooling medium stream (major loop) and Fig. 3, Fig. 8, connected mode (full flow pattern) shown in Figure 9; Figure 10, Figure 11 that branch's stream is connected in parallel with cooling medium stream (primary flow path) and is connected and connected mode (bypass type) shown in Figure 12 with this branch's stream.And,, can select various link positions or the connected mode corresponding with purpose because use single detector unit portion 9 (detector 1).In addition, full flow pattern is used in suction side and bypass type and is used in the use of discharging side etc. and distinguishes also effective.
More than, understand illustrated embodiments in detail, but the utility model is not defined to each such embodiment, at aspects such as the structure of thin portion, shape, material, quantity, numerical value, can at random change in the scope that does not break away from purport of the present utility model, appends, eliminate.
For example, constitute the thermistor 9t (removing 9w) of detector unit portion 2, not getting rid of is the parts of situation that plural thermistor is made up.In addition, detector 1 can be as described above be connected with the cooling medium stream Kb of the suction side of compressor 11, in addition, can consider the various connected modes outside the illustration.And then, showing coolant temperature transformation component 34 uses in advance the database D t that tries to achieve by the dependency relation of the output signal So of the coolant temperature Trd of reality and signal conditioning circuit 3 and carries out conversion, and the example that pressure cooling medium transformation component 35 uses in advance the database D p that tries to achieve by the pressure cooling medium Prd of reality and the dependency relation of the output signal So of signal conditioning circuit 5 to carry out conversion, but also can be by based on the transportation processing of the arithmetic expression of function to indicate and try to achieve.In addition, freeze cycle C for example understands the cooling purposes, but also can be the heating purposes.
Utilize possibility on the industry
As mentioned above, the detector that freeze cycle of the present utility model is used is for detection of the physical quantity (temperature and flow etc.) of the cooling medium that flows in the freeze cycle that is assembled into to the equipment of aircondition and refrigerator etc.
Claims (4)
1. detector (1) that freeze cycle is used is mounted in the pipe arrangement in the freeze cycle (C), detects the detector (1) that the freeze cycle of physical quantity of the cooling medium of circulation is used, and it is characterized by, and has:
Shell portion (2), the cover portion (3) that will be dome shape are fastening and seal with flat basal part (4);
Two through holes (4a, 4b) that the cooling medium inflow and outflow is used are arranged on the above-mentioned basal part (4);
Two cooling medium inflow and outflow pipes (5,6) are inserted respectively and are led in the through hole (4a, 4b) that above-mentioned two cooling medium inflow and outflows are used and encapsulation airtightly, and vertically are mounted with respect to above-mentioned basal part;
More than one leading part inserts with pore (4c, 4d, 4e), is arranged on the above-mentioned basal part (4);
More than one leading part (8a, 8b, 8c) is inserted into above-mentioned more than one leading part and inserts with airtight in the pore (4c, 4d, 4e) and via glass (7) and insulation ground is packed;
More than one thermistor (9t, 9w) is arranged in the above-mentioned shell portion (2) and at least one terminal is connected with above-mentioned more than one leading part (8a, 8b, 8c).
2. the detector (1) that freeze cycle as claimed in claim 1 is used is characterized by,
Above-mentioned cooling medium inflow and outflow pipe (5,6) encapsulates airtightly via glass (7) and above-mentioned through hole (4a, 4b).
3. the detector (1) that freeze cycle as claimed in claim 1 or 2 is used is characterized by,
Above-mentioned thermistor (9t, 9w) disposes discretely from the straight line that links between above-mentioned two through holes (4a, 4b).
4. the detector (1) that freeze cycle as claimed in claim 1 or 2 is used is characterized by,
Above-mentioned cooling medium inflow and outflow pipe (5,6), not being provided with to the mode that stretch out the inside of above-mentioned shell portion (2) with respect to above-mentioned flat basal part (4),
And above-mentioned cooling medium inflow and outflow pipe (5,6) disposes and is installed in the pipe arrangement in the freeze cycle in the mode of extending downwards.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2006/325767 WO2008078379A1 (en) | 2006-12-25 | 2006-12-25 | Detector for refrigerating cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449093U true CN201449093U (en) | 2010-05-05 |
Family
ID=39562178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006900001022U Expired - Fee Related CN201449093U (en) | 2006-12-25 | 2006-12-25 | Detector for refrigerating cycle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2008078379A1 (en) |
| CN (1) | CN201449093U (en) |
| WO (1) | WO2008078379A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154516A (en) * | 2016-03-30 | 2019-01-04 | 江森自控科技公司 | liquid detecting system |
| CN109300763A (en) * | 2017-07-25 | 2019-02-01 | 东京毅力科创株式会社 | The application method of substrate processing device and substrate processing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5509160B2 (en) * | 2011-08-01 | 2014-06-04 | シャープ株式会社 | Temperature sensor mounting structure of air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012166U (en) * | 1983-07-02 | 1985-01-26 | 株式会社ボッシュオートモーティブ システム | Receiver tank refrigerant amount detection device |
| JPS6310366U (en) * | 1986-07-07 | 1988-01-23 | ||
| JPH06180546A (en) * | 1992-12-15 | 1994-06-28 | Toshiba Corp | Intellectual examination system |
| JP3834030B2 (en) * | 2003-12-12 | 2006-10-18 | 株式会社不二工機 | Refrigerant state detection device |
-
2006
- 2006-12-25 CN CN2006900001022U patent/CN201449093U/en not_active Expired - Fee Related
- 2006-12-25 WO PCT/JP2006/325767 patent/WO2008078379A1/en active Application Filing
- 2006-12-25 JP JP2008550939A patent/JPWO2008078379A1/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154516A (en) * | 2016-03-30 | 2019-01-04 | 江森自控科技公司 | liquid detecting system |
| CN109300763A (en) * | 2017-07-25 | 2019-02-01 | 东京毅力科创株式会社 | The application method of substrate processing device and substrate processing device |
| CN109300763B (en) * | 2017-07-25 | 2020-10-16 | 东京毅力科创株式会社 | Substrate processing apparatus and method for operating substrate processing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008078379A1 (en) | 2008-07-03 |
| JPWO2008078379A1 (en) | 2010-04-15 |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20121225 |