CN108167505A - A kind of refrigerant quantifies digital display meter group - Google Patents
A kind of refrigerant quantifies digital display meter group Download PDFInfo
- Publication number
- CN108167505A CN108167505A CN201810161834.9A CN201810161834A CN108167505A CN 108167505 A CN108167505 A CN 108167505A CN 201810161834 A CN201810161834 A CN 201810161834A CN 108167505 A CN108167505 A CN 108167505A
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- Prior art keywords
- refrigerant
- hole
- valve body
- digital display
- weight sensor
- Prior art date
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 93
- 238000005303 weighing Methods 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 54
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000005429 filling process Methods 0.000 description 11
- 239000002826 coolant Substances 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
-
- 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
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/13—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing having piezoelectric or piezoresistive properties
Abstract
The present invention provides a kind of refrigerants to quantify digital display meter group, it solves the problems, such as that existing refrigerant digital display meter group filling precision is bad.This refrigerant quantifies solenoid valve, check weighing module and the control unit that digital display meter group includes housing and is set in housing, solenoid valve includes the valve body with refrigerant injection hole and refrigerant tap, check weighing module includes strip weight sensor, and control unit and weight sensor are located at valve body the upper side and lower side respectively；It is equipped with upper connecting rod and lower link above and below housing vertically respectively, upper connecting rod and lower link are in direct rod shape and the two position face, the upper end of upper connecting rod and the lower end of lower link are respectively connected with hook, and the lower end of upper connecting rod and the upper end of lower link are extend into housing, upper connecting rod and valve body are fixedly connected with, one end of weight sensor is fixedly connected with valve body, and the extrusion that weight sensor can be squeezed when lower link stress is equipped between the upper end of lower link and the other end of weight sensor.The present invention has the advantages that filling is with high accuracy.
Description
Technical field
The present invention relates to a kind of coolant charging device, particularly a kind of refrigerant quantifies digital display meter group.
Background technology
Refrigerant digital display meter group typically refers to the device that people are used for filling refrigerant, can be usually the refrigeration such as air-conditioning, refrigerator-freezer
Equipment adds refrigerant.
A kind of existing refrigerant digital display meter group definite quantity adder of coolant as disclosed in Chinese patent library【Application number：
200910074376.6；Publication number：CN 20091118A】, including claim cabinet, weighing sensor, bistable electromagnetic valve, battery,
Microcontroller and its control circuit board, the first connector, the second connector, display screen and operation button, the first connector and the second connector point
Do not connect with described bistable electromagnetic valve inlet and outlet, microcontroller and its control circuit board respectively with weighing sensor, bistable state
Solenoid valve, display screen, battery and operation button are connected, and are additionally arranged rotary compressor, its air entry be sequentially connected filter,
Pressure gauge and third connector, its gas outlet connect oil eliminator, condenser, pressure gauge and the 4th connector respectively.
Above-mentioned charging point is in use, refrigerant steel cylinder is placed on title cabinet, and passes through weighing sensor, solenoid valve and list
The quantitative injection of refrigerant is realized in the cooperation of piece machine, is had the advantages that easy to use.
But above-mentioned charging point still has a problem that：Weighing sensor is completely in title cabinet inside, operator without
Method understands the position for judging weighing sensor, and refrigerant steel cylinder can be caused not exert a force on weighing sensor completely, influences to fill
Precision.
Invention content
The purpose of the present invention is being directed to existing technology, there are the above problems, it is proposed that and a kind of refrigerant quantifies digital display meter group,
The technical issues of solution is how to improve filling precision.
The purpose of the present invention can be realized by following technical proposal：A kind of refrigerant quantifies digital display meter group, including housing and
Solenoid valve, check weighing module in housing and the control unit for solenoid valve being controlled to open and close by check weighing module, it is described
Solenoid valve include the valve body with refrigerant injection hole and refrigerant tap, which is characterized in that the check weighing module include be in
The weight sensor of strip, and control unit and weight sensor are located at the upper side and lower side of valve body respectively；The housing
Above and below be equipped with upper connecting rod and lower link vertically respectively, upper connecting rod and lower link in direct rod shape and the two position face,
The upper end of the upper connecting rod and the lower end of lower link are respectively connected with hook, and the lower end of upper connecting rod and the upper end of lower link are stretched
Enter into housing, the upper connecting rod and valve body are fixedly connected with, and one end and the valve body of the weight sensor are fixedly connected with, and lower company
The extrusion of weight sensor can be squeezed when lower link stress by being equipped between the upper end of bar and the other end of weight sensor.
The course of work is as follows：
Whole table group carries out suspension fixation by upper hook, lower hook suspension refrigerant steel cylinder, and refrigerant injection hole with
Refrigerant steel cylinder intracavity connects, refrigerant tap and compressor of air conditioner orifice；When hanging refrigerant steel cylinder under lower hook, weight
Quantity sensor stress generates voltage output, by collection voltages value, the weight of refrigerant steel cylinder can be calculated, and by right
Than the total weight of steel cylinder before and after filling, the two makes the difference, you can obtains the weight of filled refrigerant.
During filling, user presets adding amount needed for refrigerant, and weight sensor is measured the weight of gained by control unit
Amount is compared after treatment with preset value, if the practical filling weight of refrigerant is right up to preset value, controls solenoid valve
It closes, terminates filling process；Conversely, if practical filling weight is less than preset value, solenoid valve is kept to be in opening, is continued
Filling until practical filling value matches with preset value, finally completes filling process.After system restarting, as above mistake is recycled
Journey.
First, by the way that upper connecting rod and lower link is set to be faced in direct rod shape and the two position, make check weighing point and suspension
Point can keep the balance of two stress points in this way on same straight line, to prevent the shaking in filling process, to improve filling
Precision；Secondly, upper connecting rod and weight sensor are connected with valve body and are in valve body both sides, to reduce between above-mentioned two stress point
Distance, so as to further prevent the shaking in filling process, then further improve filling precision.
In above-mentioned refrigerant quantifies digital display meter group, above-mentioned weight sensor is inclined to set.Weight sensor by
Force direction is inclined to set by setting weight sensor for straight down, to reduce torque by reducing the arm of force, so as to
The interference to weight sensor is reduced, to improve the accuracy of detection of weight sensor, so as to further improve filling precision.
Run through in above-mentioned refrigerant quantifies digital display meter group, on the weight sensor and offer and lower link face
Through-hole, and the upper end of lower link passes through through-hole, the extrusion is the nut being screwed onto outside lower link upper end, and nut against
On weight sensor.
Alternatively, run through in above-mentioned refrigerant quantifies digital display meter group, on the weight sensor and open up
There is the through-hole with lower link face, and the upper end of lower link passes through through-hole, the extrusion is on the upper end side wall of lower link
The briquetting annularly protruded, and briquetting is resisted against on weight sensor.
In above-mentioned refrigerant quantifies digital display meter group, the aperture of the through-hole is more than the diameter of the upper end of lower link.
In above-mentioned refrigerant quantifies digital display meter group, the valve wall of the valve body is equipped with the resigning mouthful with nut face,
And nut is located in resigning mouthful.Using above-mentioned design, the distance between check weighing point and hitch point can be further reduced, so as to carry
Height filling precision.
In above-mentioned refrigerant quantifies digital display meter group, the weight sensor is fixedly connected with by screw and valve body.
Bleed-off passage is equipped in above-mentioned refrigerant quantifies digital display meter group, in the valve body, is injected for connecting refrigerant
Flow channels of hole and refrigerant tap and for controlling flow channels and refrigerant injection hole is connected or that blocks automatically controls
Mechanism, the bleed-off passage has inlet and outlet, and outlet is connected with flow channels, and pumping is fixed in the housing
Pipe, one end of exhaust tube and the inlet communication, and the other end of exhaust tube is extend out to outside housing, the valve body is equipped with
The manual control mechanism that bleed-off passage can be controlled to be connected or block.During installation, exhaust tube is connected with external air extractor；In refrigerant
Before filling, inlet and outlet is in conducting state, and solenoid valve is closed, and passes through air extractor in compressor of air conditioner
Portion carries out vacuumizing to form negative pressure, after end of operation, blocks inlet and outlet.By preceding in compressor of air conditioner in refrigerant injection
Portion carries out vacuumizing to form negative pressure, refrigerant can be made to enter inside compressor much smootherly, and circulation was trapped in reduce refrigerant
Amount in road, to improve injection precision.
In above-mentioned refrigerant quantifies digital display meter group, the bleed-off passage be set on flow channels side, bleed-off passage by
Cavity and in strip hole one and hole two form, the one end in the hole one and hole two is connected with cavity, and hole one and hole
Two other end is respectively above-mentioned inlet and outlet, and between flow channels and cavity, described is manual in the hole two
Control mechanism is within the cavity.Using above-mentioned design, have the advantages that simple in structure, easy to assembly.
In above-mentioned refrigerant quantifies digital display meter group, the manual control mechanism includes the sealing bar being set in cavity,
And the outer end of sealing bar is extend out to outside housing, the sealing bar and valve body bolt, and by close between sealing bar and valve body
Sealed knot is configured to seal, and rotary seal bar can be such that the inner end of sealing bar is inserted into hole one and block hole one and cavity.
In above-mentioned refrigerant quantifies digital display meter group, the inner end side wall of the sealing bar is the conical surface one, the hole one
Hole wall on have with the one matched conical surface two of the conical surface, and the conical surface one and the conical surface two can be close when sealing bar is inserted into hole one
It reclines and forms sealing.Using above-mentioned design, the connection for disconnecting hole one and cavity can be stablized, inlet and outlet is blocked in realization
Purpose.
In above-mentioned refrigerant quantifies digital display meter group, the sealing structure includes the sealing ring being fixed in valve body, close
Seal is sleeved on outside sealing bar, and the madial wall of sealing ring and lateral wall respectively with sealing bar side wall and valve interior wall tight abutment.
Alternatively, in above-mentioned refrigerant quantifies digital display meter group, the manual control mechanism includes plug
In the cavity and plug can be driven to be inserted into or stretch out the electromagnet in hole one with fixed.
Alternatively, in above-mentioned refrigerant quantifies digital display meter group, the sealing structure includes being set on sealing
Annular groove on bar side wall and the 0 shape circle in annular groove, and the peripheral surface of 0 shape circle and the inner wall of valve body offset.
Compared with prior art, this refrigerant quantifies digital display meter group and has the following advantages：
1st, by the way that upper connecting rod and lower link is set to be faced in direct rod shape and the two position, make at check weighing point and hitch point
In on same straight line, the balance of two stress points can be kept in this way, to prevent the shaking in filling process, to improve filling essence
Degree；Secondly, upper connecting rod and weight sensor are connected with valve body and are in valve body both sides, to reduce between above-mentioned two stress point
Distance so as to further prevent the shaking in filling process, then further improves filling precision.
2nd, the Impact direction of weight sensor is straight down, and is inclined to set by setting weight sensor, with logical
The reduction arm of force is crossed to reduce torque, so as to reduce the interference to weight sensor, to improve the accuracy of detection of weight sensor, from
And further improve filling precision.
It 3rd, so both can be with by the mechanism for vacuumizing and in the organization's integration that refrigerant conveys a to solenoid valve
The step of improving whole table group property easy to assembly, and can shortening during coolant charging, to improve the convenience of filling process
And reduce the probability of the maloperation in filling process.
Description of the drawings
Fig. 1 is the forward sight structure diagram that this refrigerant quantifies digital display meter group.
Fig. 2 is that this refrigerant quantifies the structure diagram of digital display meter group inside housings.
Fig. 3 is the schematic cross-sectional view that this refrigerant quantifies digital display meter group.
Fig. 4 is the dimensional structure diagram of solenoid valve.
Fig. 5 is the schematic cross-sectional view of solenoid valve.
Fig. 6 is schematic cross-sectional view of the solenoid valve in other direction.
In figure, 1, housing；2nd, solenoid valve；2a, valve body；2a1, refrigerant injection hole；2a2, refrigerant tap；2a3, it crosses and circulates
Road；2a4, bleed-off passage；2a4a, cavity；2a4b, Kong Yi；2a4c, hole two；2b, automaton；2c, resigning mouthful；3rd, again
Quantity sensor；4th, upper connecting rod；5th, lower link；6th, it links up with；7th, control unit；8th, inlet tube；9th, drain pipe；10th, exhaust tube；11、
Sealing bar；12nd, knob；13rd, sealing ring；14th, screw；15th, extrusion；16th, liquid crystal display；17th, key group.
Specific embodiment
The following is specific embodiments of the present invention and with reference to attached drawing, technical scheme of the present invention is further described,
But the present invention is not limited to these embodiments.
Embodiment one
As shown in Figures 1 to 6, this refrigerant quantify digital display meter group by housing 1, solenoid valve 2, check weighing module, upper connecting rod 4, under
The compositions such as connecting rod 5, hook 6, control unit 7, manual control mechanism.
Wherein, solenoid valve 2, check weighing module and control unit 7 are arranged inside housing 1, and control unit 7 passes through check weighing
Module controls the keying of solenoid valve 2.
Specifically, as shown in figure 5, solenoid valve 2 includes valve body 2a, there is refrigerant injection hole 2a1 and refrigerant on valve body 2a
The tap 2a2 and flow channels 2a3 for connecting refrigerant injection hole 2a1 and refrigerant tap 2a2.Valve body 2a, which is equipped with, to be used
In control flow channels 2a3 and refrigerant injection hole 2a1 conductings or the automatic controls blocked.Wherein, pass through robot brain
It is the prior art that structure, which realizes flow channels 2a3 and refrigerant injection hole 2a1 conductings or blocks this part, with what is sold on the market
General solenoid valve 2 is identical, not described in detail herein.It or can be referring to solenoid valve a kind of disclosed in Chinese patent library【Application number：
201010286545.5】Or a kind of solenoid valve【Application number：201120473371.3】.
It further illustrates, inlet tube 8 and drain pipe 9 is fixed in housing 1, wherein, one end and the refrigerant of inlet tube 8 inject
Hole 2a1 is connected, and the other end of inlet tube 8 is extend out to outside housing 1；One end of drain pipe 9 is connected with refrigerant tap 2a2, and
The other end of drain pipe 9 is extend out to outside housing 1.
As shown in fig. 6, bleed-off passage 2a4 is equipped in valve body 2a, and bleed-off passage 2a4 has inlet and outlet.Wherein, go out
Mouth is connected with flow channels 2a3；Exhaust tube 10, one end of exhaust tube 10 and inlet communication, and exhaust tube 10 are fixed in housing 1
The other end extend out to outside housing 1.Valve body 2a is equipped with the manual control mechanism that bleed-off passage 2a4 can be controlled to be connected or block.
Specifically, as shown in fig. 6, bleed-off passage 2a4 is set on flow channels 2a3 sides, bleed-off passage 2a4 is by cavity
2a4a and in strip one 2a4b of hole and two 2a4c of hole form.Wherein, one end of two 2a4c of one 2a4b of hole and hole is and cavity
2a4a is connected, and the other end of two 2a4c of one 2a4b of hole and hole is respectively above-mentioned inlet and outlet.Two 2a4c of hole is located at overcurrent
Between channel 2a3 and cavity 2a4a, manual control mechanism is located in cavity 2a4a and for two 2a4c of one 2a4b of control hole and hole
It is connected or blocks.In the present embodiment, manual control mechanism includes the sealing bar 11 being set in cavity 2a4a, and sealing bar 11
Outer end is extend out to outside housing 1.Sealing bar 11 and valve body 2a bolts, and pass through sealing structure shape between sealing bar 11 and valve body 2a
Into sealing.Rotary seal bar 11 can be such that the inner end of sealing bar 11 is inserted into one 2a4b of hole and block one 2a4b of hole and cavity
2a4a.It is preferred that the outer end of sealing bar 11 is connected with knob 12, to facilitate rotary seal bar 11.
Wherein,
The mode that sealing bar 11 blocks hole one 2a4b and cavity 2a4a is as follows：The inner end side wall of sealing bar 11 is the conical surface one,
Have on the hole wall of one 2a4b of hole with the one matched conical surface two of the conical surface, and the conical surface one and the conical surface two are inserted into hole one in sealing bar 11
When in 2a4b can closely against and form sealing, hole one 2a4b and cavity 2a4a are separated with stabilization.
Sealing structure is specific as follows：Including the sealing ring 13 being fixed in valve body 2a, sealing ring 13 is sleeved on outside sealing bar 11,
And the madial wall and lateral wall of sealing ring 13 respectively with 11 side wall of sealing bar and valve body 2a inner wall tight abutments so that valve body 2a and
Reliable sealing is formed between sealing bar 11, to improve the stability of the work of solenoid valve 2.
As shown in Figures 2 and 3, check weighing module includes the weight sensor 3 in strip, and weight sensor 3 is inclined sets
It puts.At this point, weight sensor 3 and control unit 7 are located at the upper side and lower side of valve body 2a respectively.Divide above and below housing 1
It is not equipped with upper connecting rod 4 and lower link 5 not vertically, upper connecting rod 4 and lower link 5 are in direct rod shape and the two position face.Upper connecting rod 4
Upper end and the lower end of lower link 5 are respectively connected with hook 6, and the lower end of upper connecting rod 4 and the upper end of lower link 5 extend into housing 1
It is interior.The lower end of upper connecting rod 4 and valve body 2a are fixedly connected with；One end of weight sensor 3 is fixedly connected with valve body 2a, and preferred weight senses
Device 3 is fixedly connected with by screw 14 and valve body 2a.It is equipped between the upper end of lower link 5 and the other end of weight sensor 3 and connects instantly
The extrusion 15 of weight sensor 3 can be squeezed during 5 stress of bar.
In the present embodiment, through the through-hole offered with 5 face of lower link on weight sensor 3, and lower link 5 is upper
End is across through-hole, and extrusion 15 is the nut being screwed onto outside 5 upper end of lower link, and nut is resisted against on weight sensor 3.Into one
Step explanation, the aperture of through-hole are more than the diameter of the upper end of lower link 5；The valve wall of valve body 2a is equipped with the resigning mouthful with nut face
2c, and nut is located in resigning mouthful 2c.
This refrigerant quantifies digital display meter group and further includes liquid crystal display 16, key group 17 and lithium battery group, pressure as depicted in figs. 1 and 2
Force snesor.Wherein, liquid crystal display 16 is located at 1 positive upper half area of housing, fills refrigerant type for showing, fills in advance cold
Matchmaker's weight has filled refrigerant weight, the parameters such as refrigerant pressure and temperature, and has indicated coolant charging progress and device remaining capacity；
Key group 17 is located at 16 lower section of liquid crystal display, for the control in the parameter setting and filling process before coolant charging；1 back side of housing
Lithium battery group is installed, the side setting for the power supply of whole table group, and housing 1 can be the charging interface of lithium battery group charging；
Pressure sensor is arranged in drain pipe 9, for measuring refrigerant discharge pressure.
In the present embodiment, liquid crystal display 16, key group 17, lithium battery group, charging interface, control unit 7, check weighing module,
The structure and connection mode of the components such as solenoid valve 2, pressure sensor are existing, a kind of cold with reference to disclosed in Chinese patent library
Matchmaker's quantitative filling device【Application number：2009100743766；Publication number：CN 101581520A】.
Operation principle is as follows：During installation, exhaust tube 10 is connected with external air extractor；
Before coolant charging, inlet and outlet is in conducting state, and solenoid valve 2 is closed, and passes through pumping dress
It puts and compressor of air conditioner inside vacuumize forming negative pressure, after end of operation, rotary seal bar 11 is to block inlet and outlet.
Whole table group carries out suspension fixation by upper hook 6, and lower hook 6 hangs refrigerant steel cylinder, and refrigerant injection hole 2a1 and refrigerant
Steel cylinder intracavity connects, refrigerant tap 2a2 and compressor of air conditioner orifice；When 6 times suspension refrigerant steel cylinders of lower hook, weight
3 stress of quantity sensor generates voltage output, by collection voltages value, the weight of refrigerant steel cylinder can be calculated, and by right
Than the total weight of steel cylinder before and after filling, the two makes the difference, you can obtains the weight of filled refrigerant.
During filling, user presets adding amount needed for refrigerant, and weight sensor 3 is measured gained by control unit 7
Weight is compared after treatment with preset value, if the practical filling weight of refrigerant is right up to preset value, controls electromagnetism
Valve 2 is closed, and terminates filling process；Conversely, if practical filling weight is less than preset value, solenoid valve 2 is kept to be in opening,
Continue to fill, until practical filling value matches with preset value, finally complete filling process.After system restarting, cycle is such as
Upper process.
Embodiment two
The present embodiment two is essentially identical with the structure and principle of embodiment one, and different place is：Extrusion 15 is
The briquetting annularly protruded on the upper end side wall of lower link 5, and briquetting is resisted against on weight sensor 3.
Embodiment three
The present embodiment three is essentially identical with the structure and principle of embodiment one, and different place is：Manual control machine
Structure includes plug and is fixed in cavity 2a4a and plug can be driven to be inserted into or stretch out the electromagnet in one 2a4b of hole.
Example IV
The present embodiment four is essentially identical with the structure and principle of embodiment one, and different place is：Sealing structure packet
Include the annular groove on 11 side wall of sealing bar and the 0 shape circle in annular groove, and the peripheral surface of 0 shape circle and valve body 2a
Inner wall offset.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of refrigerant quantifies digital display meter group, the solenoid valve that including housing and is set in housing, check weighing module and pass through survey
Molality block includes come control unit that solenoid valve is controlled to open and close, the solenoid valve with refrigerant injection hole and refrigerant tap
Valve body, which is characterized in that the check weighing module includes the weight sensor in strip, and control unit and weight sensor point
Not Wei Yu valve body the upper side and lower side；It is equipped with upper connecting rod and lower link, upper company above and below the housing vertically respectively
In direct rod shape and the two position face, the upper end of the upper connecting rod and the lower end of lower link are respectively connected with extension for bar and lower link
Hook, and the lower end of upper connecting rod and the upper end of lower link are extend into housing, the upper connecting rod and valve body are fixedly connected with, described
One end of weight sensor is fixedly connected with valve body, and is equipped between the upper end of lower link and the other end of weight sensor and is connected instantly
The extrusion of weight sensor can be squeezed during bar stress.
2. refrigerant according to claim 1 quantifies digital display meter group, which is characterized in that above-mentioned weight sensor is inclined to be set
It puts.
3. refrigerant according to claim 1 or 2 quantifies digital display meter group, which is characterized in that is passed through on the weight sensor
The through-hole offered with lower link face is worn, and the upper end of lower link passes through through-hole, the extrusion is is screwed onto lower link
Nut outside upper end, and nut is resisted against on weight sensor.
4. refrigerant according to claim 3 quantifies digital display meter group, which is characterized in that the weight sensor passes through screw
It is fixedly connected with valve body.
5. refrigerant according to claim 3 quantifies digital display meter group, which is characterized in that the valve wall of the valve body be equipped with
The resigning mouthful of nut face, and nut is located in resigning mouthful.
6. refrigerant according to claim 1 quantifies digital display meter group, which is characterized in that it is logical that pumping is equipped in the valve body
Road, for the flow channels that connect refrigerant injection hole and refrigerant tap and for flow channels and refrigerant injection hole to be controlled to lead
Automatic controls that is logical or blocking, the bleed-off passage has inlet and outlet, and outlet is connected with flow channels, described
Housing in be fixed with exhaust tube, one end of exhaust tube and the inlet communication, and the other end of exhaust tube extend out to housing
Outside, the valve body is equipped with the manual control mechanism that inlet and outlet can be controlled to connect or block.
7. refrigerant according to claim 6 quantifies digital display meter group, which is characterized in that the bleed-off passage was set on circulation
Road side, bleed-off passage by cavity and are formed in the hole one of strip and hole two, and the one end in the hole one and hole two is and chamber
Body connects, and the other end in hole one and hole two is respectively above-mentioned inlet and outlet, and the hole two is located at flow channels and chamber
Between body, the manual control mechanism is within the cavity.
8. refrigerant according to claim 7 quantifies digital display meter group, which is characterized in that the manual control mechanism includes setting
It is extend out to outside housing in the outer end of the sealing bar in cavity, and sealing bar, the sealing bar and valve body bolt, and sealing bar
It is formed and sealed by sealing structure between valve body, rotary seal bar can be such that the inner end of sealing bar is inserted into hole one and block hole
One and cavity.
9. refrigerant according to claim 8 quantifies digital display meter group, which is characterized in that the inner end side wall of the sealing bar is
The conical surface one, have on the hole wall in the hole one with the one matched conical surface two of the conical surface, and the conical surface one and the conical surface two are inserted in sealing bar
When entering into hole one can closely against and form sealing.
10. refrigerant according to claim 1 quantifies digital display meter group, which is characterized in that the sealing structure includes fixing
Sealing ring in valve body, sealing ring are sleeved on outside sealing bar, and the madial wall of sealing ring and lateral wall respectively with sealing bar side wall
With valve interior wall tight abutment.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060230775A1 (en) * | 2005-04-19 | 2006-10-19 | Govekar Craig F | Refrigerant charging using line having a control valve |
| CN201041441Y (en) * | 2006-06-10 | 2008-03-26 | 深圳市元征科技股份有限公司 | Refrigerator measuring complementary system for coolant filling apparatus |
| CN101581520A (en) * | 2009-05-14 | 2009-11-18 | 王丑 | Definite quantity adder of coolant |
| CN201363976Y (en) * | 2009-03-11 | 2009-12-16 | 耿功业 | Full-automatic refrigerant quantitative adding machine |
| DE202010013793U1 (en) * | 2009-09-30 | 2011-03-03 | Texa S.P.A. | Multiple tank system for refilling coolant in an air conditioning system of a motor vehicle |
| CN103090937A (en) * | 2012-03-23 | 2013-05-08 | 台州朗讯机械有限公司 | Electronic scale capable of quantitatively adding liquid and method for quantitatively adding liquid |
| CN203043136U (en) * | 2013-02-21 | 2013-07-10 | 林莉莉 | Transfusion alarm |
| US20140260351A1 (en) * | 2013-03-12 | 2014-09-18 | Service Solutions U.S. Llc | Method and apparatus for improving the charge accuracy of a refrigerant recovery unit |
| CN204085725U (en) * | 2014-07-17 | 2015-01-07 | 台州朗讯机械有限公司 | A kind of Multifunctional coolant measures digital display meter device |
| CN204788600U (en) * | 2015-06-02 | 2015-11-18 | 罗能干 | Operating instrument of refrigerant able to programme filling balance |
| CN204890790U (en) * | 2015-08-12 | 2015-12-23 | 泰州学院 | Automatic monitoring infusion set |
| CN105988412A (en) * | 2016-05-24 | 2016-10-05 | 浙江金刚汽车有限公司 | Automobile air-conditioning system sealing detection and refrigerant injection device |
| CN206038040U (en) * | 2016-06-27 | 2017-03-22 | 金华市威科工贸有限公司 | Multiport refrigerant caliber |
| CN106581813A (en) * | 2017-01-10 | 2017-04-26 | 吴新社 | Gravity transfusion pump |
| CN208058084U (en) * | 2018-02-27 | 2018-11-06 | 温岭市维朋制冷设备有限公司 | A kind of refrigerant quantifies digital display meter group |
-
2018
- 2018-02-27 CN CN201810161834.9A patent/CN108167505B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060230775A1 (en) * | 2005-04-19 | 2006-10-19 | Govekar Craig F | Refrigerant charging using line having a control valve |
| CN201041441Y (en) * | 2006-06-10 | 2008-03-26 | 深圳市元征科技股份有限公司 | Refrigerator measuring complementary system for coolant filling apparatus |
| CN201363976Y (en) * | 2009-03-11 | 2009-12-16 | 耿功业 | Full-automatic refrigerant quantitative adding machine |
| CN101581520A (en) * | 2009-05-14 | 2009-11-18 | 王丑 | Definite quantity adder of coolant |
| DE202010013793U1 (en) * | 2009-09-30 | 2011-03-03 | Texa S.P.A. | Multiple tank system for refilling coolant in an air conditioning system of a motor vehicle |
| CN103090937A (en) * | 2012-03-23 | 2013-05-08 | 台州朗讯机械有限公司 | Electronic scale capable of quantitatively adding liquid and method for quantitatively adding liquid |
| CN203043136U (en) * | 2013-02-21 | 2013-07-10 | 林莉莉 | Transfusion alarm |
| US20140260351A1 (en) * | 2013-03-12 | 2014-09-18 | Service Solutions U.S. Llc | Method and apparatus for improving the charge accuracy of a refrigerant recovery unit |
| CN204085725U (en) * | 2014-07-17 | 2015-01-07 | 台州朗讯机械有限公司 | A kind of Multifunctional coolant measures digital display meter device |
| CN204788600U (en) * | 2015-06-02 | 2015-11-18 | 罗能干 | Operating instrument of refrigerant able to programme filling balance |
| CN204890790U (en) * | 2015-08-12 | 2015-12-23 | 泰州学院 | Automatic monitoring infusion set |
| CN105988412A (en) * | 2016-05-24 | 2016-10-05 | 浙江金刚汽车有限公司 | Automobile air-conditioning system sealing detection and refrigerant injection device |
| CN206038040U (en) * | 2016-06-27 | 2017-03-22 | 金华市威科工贸有限公司 | Multiport refrigerant caliber |
| CN106581813A (en) * | 2017-01-10 | 2017-04-26 | 吴新社 | Gravity transfusion pump |
| CN208058084U (en) * | 2018-02-27 | 2018-11-06 | 温岭市维朋制冷设备有限公司 | A kind of refrigerant quantifies digital display meter group |
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| CN108167505B (en) | 2023-11-21 |
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Address after: No. 998 Jiulong Avenue, Chengxi Street, Wenling City, Taizhou City, Zhejiang Province, 317500 Applicant after: Zhejiang weipeng refrigeration equipment Co.,Ltd. Address before: No. 998 Jiulong Avenue, Chengxi Street, Wenling City, Taizhou City, Zhejiang Province, 317500 Applicant before: WENLING WIPCOOL REFRIGERATION EQUIPMENT Co.,Ltd. |
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