CN101907224B - Mixing filling compound device for vehicle expansion valve thermo-bulb and use method thereof - Google Patents
Mixing filling compound device for vehicle expansion valve thermo-bulb and use method thereof Download PDFInfo
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- CN101907224B CN101907224B CN2010102170672A CN201010217067A CN101907224B CN 101907224 B CN101907224 B CN 101907224B CN 2010102170672 A CN2010102170672 A CN 2010102170672A CN 201010217067 A CN201010217067 A CN 201010217067A CN 101907224 B CN101907224 B CN 101907224B
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Abstract
The invention discloses a mixing filling compound device for a vehicle expansion valve thermo-bulb and a use method thereof. The vehicle expansion valve adjusts the opening degree thereof by sensing the temperature change through the thermo-bulb. The air in the thermo-bulb not only has a preset pressure but also is absolutely sealed. The invention can aerate and seal at one time and can ensure the sealing property of the thermo-bulb. The device of the invention comprises a cylinder, a mandril, a pressing block, a support rack, a first air inlet, a second air inlet, a sealing ring, a fixing seat, and the like. An upper arm, a lower arm and a base are parts of a welder. The expansion valve thermo-bulb and a sealing ball are placed in the fixing seat, and then are compressed, vacuum-pumped, aerated, maintained and at last the point welder is started so as to seal. The invention is modified from a point welder. The device has low cost, simple operation and high production efficiency.
Description
Technical field
The present invention relates to a kind of mixing filling integrated apparatus and using method thereof of auto expansion valve bulb.
Background technique
Expansion valve is a vitals in the automotive air-conditioning system, and it plays a part the throttling step-down and regulates flow.Usually, expansion valve is made up of valve body, bulb, balance tube three parts.What fill in the bulb is the refrigerant (being refrigeration agent) that is in the vapor liquid equilibrium saturation state, and this part refrigerant does not communicate with intrasystem refrigerant.Expansion valve is when dispatching from the factory, and valve needs certain aperture, so need to charge into the refrigerant and the helium of certain pressure in the expansion valve bulb, changes controlling opening of valve thereby refrigerant is used for temperature sensor, and helium then is used to guarantee the aperture of dispatching from the factory of expansion valve.
Gas filling technology in the bulb of expansion valve is comparatively complicated, not only will guarantee the pressure of gas in the bulb, also will guarantee its tightness.Existing processing technology is at copper pipe of the opening of bulb welding, from copper pipe gas is charged into, charge into finish after, with the copper pipe pincers after the tight and fusion again with gas input disconnection, guarantee its tightness.This kind processing method waste copper pipe material, the cost of production height, and the sealing at copper pipe place also is difficult to guarantee, the process step complexity, and work efficiency is low.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of mixing filling integrated apparatus and using method thereof of auto expansion valve bulb is provided.
The mixing filling integrated apparatus of auto expansion valve bulb comprises spot welding machine, spot welding machine is provided with support, goes up horn and following horn, comprises air cylinder fixed plate, cylinder, cylinder output shaft, shaft joint, upper guide bush, push rod, briquetting, fixed base, air outlet, seal ring, supporting frame, first suction port, second suction port, pressure gauge connection mouth and following fixing rod; Air cylinder fixed plate is fixed in support, cylinder is fixed in air cylinder fixed plate, fix by shaft joint between cylinder output shaft and the push rod, push rod passes upper guide bush, upper guide bush by screw in last horn, fixed base is fixed in fixing rod down, following fixing rod passes down horn and is fixed in the following horn, and supporting frame is fixed in the fixed base center, the air outlet, first suction port, second suction port and pressure gauge connection mouth are fixed in the fixed base side, and all communicate with fixed base inside, the air outlet links to each other with vacuum valve, and first suction port links to each other with the refrigerant valve, and second suction port links to each other with the helium valve, the pressure gauge connection mouth is connected with pressure gauge, and seal ring is fixed in the fixed base end face.
The using method of the mixing filling integrated apparatus of auto expansion valve bulb may further comprise the steps:
1) closes vacuum valve, helium valve, refrigerant valve;
2) sealing solder is put on the supporting frame, puts into the expansion valve bulb again, open cylinder, the expansion valve bulb is pressed on fixed base, make to be sealing state between expansion valve bulb and the fixed base by briquetting;
3) open vacuum valve, close helium valve and refrigerant valve, vacuumize, reach requirement up to vacuum pressure, time-delay is waited for, if air pressure has rising that gas leak phenomenon then has been described, needs device is regulated, if there is not gas leakage, then carries out next step;
4) close vacuum valve and helium valve, open the refrigerant valve, charge into refrigerant, continue to fill, reach requirement up to pressure, this pressure can be malleation and also can be negative pressure;
5) close vacuum valve, helium valve and refrigerant valve, time-delay waits for that if in waiting time, differing more than 10% of detected pressures and setting refrigerant pressure thinks that then coolant injection is wrong, and then beacon is bright, otherwise continues;
6) close vacuum valve and refrigerant valve, open the helium valve, fill helium, reach requirement up to pressure;
7) close vacuum valve, helium valve and refrigerant valve, time-delay waits for that if in waiting time, the gap of detected pressures and setting helium pressure reaches more than 10%, and it is wrong to think that then helium fills, and then beacon is bright, otherwise continues;
8) filled finishing, the opening point welding machine carries out spot welding, and gas is packaged in the expansion valve bulb.
Description of drawings
Fig. 1 is the schematic representation of the mixing filling integrated apparatus of auto expansion valve bulb of the present invention;
Fig. 2 is the fixed base schematic representation of the mixing filling integrated apparatus of auto expansion valve bulb of the present invention;
Among the figure, support 1, air cylinder fixed plate 2, cylinder 3, cylinder output shaft 4, shaft joint 5, upper guide bush 6, last horn 7, push rod 8, briquetting 9, fixed base 10, following horn 11, air outlet 12, seal ring 13, supporting frame 14, first suction port 15, second suction port 16, pressure gauge connection mouth 17 and following fixing rod 18.
Embodiment
As shown in Figure 1, the mixing filling integrated apparatus of auto expansion valve bulb comprises spot welding machine, spot welding machine is provided with support 1, goes up horn 7 and following horn 11, comprises air cylinder fixed plate 2, cylinder 3, cylinder output shaft 4, shaft joint 5, upper guide bush 6, push rod 8, briquetting 9, fixed base 10, air outlet 12, seal ring 13, supporting frame 14, first suction port 15, second suction port 16, pressure gauge connection mouth 17 and following fixing rod 18; Air cylinder fixed plate 2 is fixed in support 1, cylinder 3 is fixed in air cylinder fixed plate 2, fix by shaft joint 5 between cylinder output shaft 4 and the push rod 8, push rod 8 passes upper guide bush 6, upper guide bush 6 by screw in last horn 7, fixed base 10 is fixed in fixing rod 18 down, following fixing rod 18 passes down horn 11 and is fixed in the following horn 11, supporting frame 14 is fixed in fixed base 10 centers, air outlet 12, first suction port 15, second suction port 16 and pressure gauge connection mouth 17 are fixed in fixed base 10 sides, and all communicate with fixed base 10 inside, air outlet 12 links to each other with vacuum valve, and first suction port 15 links to each other with the refrigerant valve, and second suction port 16 links to each other with the helium valve, pressure gauge connection mouth 17 is connected with pressure gauge, seal ring 13 be fixed in fixed base 10 ends to.
As shown in Figure 2, fixed base 10 is provided with seal ring 13, the sealing when guaranteeing that briquetting 9 is pressed on the expansion valve bulb on the fixed base.Be provided with supporting frame 14 in the fixed base 10 in order to place sealing solder.
The using method of the mixing filling device of auto expansion valve bulb may further comprise the steps:
1) closes vacuum valve, helium valve, refrigerant valve;
2) sealing solder is put on the supporting frame 14, puts into the expansion valve bulb again, open cylinder 3, the expansion valve bulb is pressed on fixed base 10, make to be sealing state between expansion valve bulb and the fixed base 10 by briquetting 9;
3) open vacuum valve, close helium valve and refrigerant valve, vacuumize, reach requirement up to vacuum pressure, time-delay is waited for, if air pressure has rising that gas leak phenomenon then has been described, needs device is regulated, if there is not gas leakage, then carries out next step;
4) close vacuum valve and helium valve, open the refrigerant valve, charge into refrigerant, continue to fill, reach requirement up to pressure, this pressure can be malleation and also can be negative pressure;
5) close vacuum valve, helium valve and refrigerant valve, time-delay waits for that if in waiting time, differing more than 10% of detected pressures and setting refrigerant pressure thinks that then coolant injection is wrong, and then beacon is bright, otherwise continues;
6) close vacuum valve and refrigerant valve, open the helium valve, fill helium, reach requirement up to pressure;
7) close vacuum valve, helium valve and refrigerant valve, time-delay waits for that if in waiting time, the gap of detected pressures and setting helium pressure reaches more than 10%, and it is wrong to think that then helium fills, and then beacon is bright, otherwise continues;
8) filled finishing, the opening point welding machine carries out spot welding, and gas is packaged in the expansion valve bulb.
Claims (2)
1. the mixing filling integrated apparatus of an auto expansion valve bulb, comprise spot welding machine, spot welding machine is provided with support (1), goes up horn (7) and following horn (11), it is characterized in that comprising air cylinder fixed plate (2), cylinder (3), cylinder output shaft (4), shaft joint (5), upper guide bush (6), push rod (8), briquetting (9), fixed base (10), air outlet (12), seal ring (13), supporting frame (14), first suction port (15), second suction port (16), pressure gauge connection mouth (17) and following fixing rod (18); Air cylinder fixed plate (2) is fixed in support (1), cylinder (3) is fixed in air cylinder fixed plate (2), fix by shaft joint (5) between cylinder output shaft (4) and the push rod (8), push rod (8) passes upper guide bush (6), upper guide bush (6) by screw in last horn (7), fixed base (10) is fixed in fixing rod (18) down, following fixing rod (18) passes down horn (11) and is fixed in the following horn (11), supporting frame (14) is fixed in fixed base (10) center, air outlet (12), first suction port (15), second suction port (16) and pressure gauge connection mouth (17) are fixed in fixed base (10) side, and all communicate with fixed base (10) inside, air outlet (12) links to each other with vacuum valve, first suction port (15) links to each other with the refrigerant valve, second suction port (16) links to each other with the helium valve, pressure gauge connection mouth (17) is connected with pressure gauge, and seal ring (13) is fixed in fixed base (10) end face.
2. the using method of the mixing filling integrated apparatus of an auto expansion valve bulb is characterized in that may further comprise the steps:
1) closes vacuum valve, helium valve, refrigerant valve;
2) sealing solder is put on the supporting frame (14), puts into the expansion valve bulb again, open cylinder (3), the expansion valve bulb is pressed on fixed base (10), make to be sealing state between expansion valve bulb and the fixed base (10) by briquetting (9);
3) open vacuum valve, close helium valve and refrigerant valve, vacuumize, reach requirement up to vacuum pressure, time-delay is waited for, if air pressure has rising that gas leak phenomenon then has been described, needs device is regulated, if there is not gas leakage, then carries out next step;
4) close vacuum valve and helium valve, open the refrigerant valve, charge into refrigerant, continue to fill, reach requirement up to pressure, this pressure can be malleation and also can be negative pressure;
5) close vacuum valve, helium valve and refrigerant valve, time-delay waits for that if in waiting time, differing more than 10% of detected pressures and setting refrigerant pressure thinks that then coolant injection is wrong, and then beacon is bright, otherwise continues;
6) close vacuum valve and refrigerant valve, open the helium valve, fill helium, reach requirement up to pressure;
7) close vacuum valve, helium valve and refrigerant valve, time-delay waits for that if in waiting time, the gap of detected pressures and setting helium pressure reaches more than 10%, and it is wrong to think that then helium fills, and then beacon is bright, otherwise continues;
8) filled finishing, the opening point welding machine carries out spot welding, and gas is packaged in the expansion valve bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102170672A CN101907224B (en) | 2010-07-02 | 2010-07-02 | Mixing filling compound device for vehicle expansion valve thermo-bulb and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102170672A CN101907224B (en) | 2010-07-02 | 2010-07-02 | Mixing filling compound device for vehicle expansion valve thermo-bulb and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101907224A CN101907224A (en) | 2010-12-08 |
| CN101907224B true CN101907224B (en) | 2011-12-28 |
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| CN2010102170672A Active CN101907224B (en) | 2010-07-02 | 2010-07-02 | Mixing filling compound device for vehicle expansion valve thermo-bulb and use method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2436140A (en) * | 2006-03-16 | 2007-09-19 | Kubota Kk | Air conditioning device of a vehicle |
| CN200982764Y (en) * | 2006-12-09 | 2007-11-28 | 奇瑞汽车有限公司 | Automobile air conditioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072031U (en) * | 1990-09-30 | 1991-02-27 | 巫清舜 | Steam jet type cooling device for car |
| JP4386874B2 (en) * | 2005-09-20 | 2009-12-16 | 株式会社ケーヒン | Air conditioner for vehicles |
-
2010
- 2010-07-02 CN CN2010102170672A patent/CN101907224B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2436140A (en) * | 2006-03-16 | 2007-09-19 | Kubota Kk | Air conditioning device of a vehicle |
| CN200982764Y (en) * | 2006-12-09 | 2007-11-28 | 奇瑞汽车有限公司 | Automobile air conditioner |
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| Publication number | Publication date |
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| CN101907224A (en) | 2010-12-08 |
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Denomination of invention: The mixed filling compound device of the temperature sensor of the automobile expansion valve and its application method Effective date of registration: 20221104 Granted publication date: 20111228 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG BOWEI AUTO AIR-CONDITIONER Co.,Ltd. Registration number: Y2022330002912 |