CN101307972B - Coolant reclaiming machine control circuit - Google Patents
Coolant reclaiming machine control circuit Download PDFInfo
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- CN101307972B CN101307972B CN2008100630640A CN200810063064A CN101307972B CN 101307972 B CN101307972 B CN 101307972B CN 2008100630640 A CN2008100630640 A CN 2008100630640A CN 200810063064 A CN200810063064 A CN 200810063064A CN 101307972 B CN101307972 B CN 101307972B
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- 239000002826 coolant Substances 0.000 title claims description 28
- 239000003507 refrigerant Substances 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 230000011664 signaling Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 3
- 241000009298 Trigla lyra Species 0.000 claims description 2
- 230000006870 function Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000004378 air conditioning Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides a control circuit of a refrigerant reclaiming device, belonging to the refrigerant reclaiming technical field. The invention solves the problems of single function, troublesome maintenance and so on of the prior refrigerant reclaiming device. The control circuit of a refrigerant reclaiming device comprises a central processor, a power source module supplying power to the whole control circuit, and a storage and a signal input and output module which are connected to the central processor, wherein, the central processor is also connected with a valve control circuit for controlling an electromagnetic valve on inner pipelines of the reclaiming device and a relay control circuit for controlling the running of a compressor and a vacuum pump in the reclaiming device; and the central processor sends control signals to the valve control circuit and the relay circuit so as to control the on/off of the pipelines in the reclaiming device and the working conditions of the compressor and the vacuum pump. The control circuit can complete only needs to a series of work of refrigerant reclamation and injection only according to the operational command inputted by a user. The control circuit of the refrigerant reclaiming device has the advantages of convenience, rapidness, unified control, various functions and so on.
Description
Technical field
The invention belongs to the refrigerant reclaiming technical field, relate to the control circuit of a kind of control circuit, particularly a kind of refrigerant reclaiming device.
Background technology
In the prior art, air conditioning for automobiles, central air-conditioning, freezer, refrigerator etc. all exist the problem of refrigeration plant maintenance, all need use special equipment air-conditioning system is cleaned and annotated refrigerant at set intervals.Coolant reclaiming machine in the market is exactly to design for this reason, and is different according to each tame factory design, and on the market coolant reclaiming machine all has refrigerant recovering mostly, vacuumizes and function such as refrigerant filling at present.
But most of coolant reclaiming machines lack a whole set of perfect control circuit carries out system's control, has brought bigger inconvenience to the user.This has just caused the function of present coolant reclaiming machine comparatively single, only has simple recovery and adds pouring functions.Utilize coolant reclaiming machine can't solve the problem that occurs in the air-conditioning system, the maintenance of air-conditioning system comparatively bothers.
Summary of the invention
The objective of the invention is to existing the problems referred to above in the existing coolant reclaiming machine, and proposed a kind ofly to unify to control, the control circuit of the coolant reclaiming machine of diverse in function.
The object of the invention can be realized through following technical proposal: a kind of control circuit of coolant reclaiming machine; It is characterized in that; This control circuit comprises central processing unit, to the power module of The whole control circuit supply and be connected memory and the signal input/output module on the central processing unit; Also be connected with the valve controling circuit of magnetic valve on the control recovery machine internal duct and the control relay circuit of control recovery machine inner compressor, vavuum pump work on the described central processing unit; Above-mentioned central processing unit sends control signal to valve controling circuit and relay circuit, the working condition of the break-make of each pipeline and compressor, vavuum pump in the control coolant reclaiming machine.
When the user operates, through input/output module central processing unit is sent the operations instruction, central processing unit then sends control signal corresponding according to these concrete operational orders to valve controling circuit and control relay circuit.Magnetic valve in the coolant reclaiming machine on each pipeline is controlled by valve controling circuit; The magnetic valve that coolant reclaiming machine need close and open in each stage of reclaiming has nothing in common with each other, and these all are by central processing unit the various control signals that valve controling circuit sent to be controlled.Same, the vavuum pump in the coolant reclaiming machine and the working condition of compressor are controlled by control relay circuit, send control signal by central processing unit equally.
In the control circuit of above-mentioned coolant reclaiming machine, described signal input/output module comprises display and the keyboard that is connected on the central processing unit.The user sends operations instruction through keyboard to central processing unit, and the various data messages the during work of recovery machine can show on display, and is more convenient during use.
In the control circuit of above-mentioned coolant reclaiming machine, be connected with weight sensor on the described central processing unit, be connected with the A/D signaling conversion circuit between weight sensor and the central processing unit.Refrigerant jar in the recovery machine is placed on the weight sensor, and refrigerant surplus in the test refrigerant jar makes things convenient for the timely coolant adding of user.The analog signal of weight sensor output is input in the central processing unit after converting data signal to through the A/D signaling conversion circuit again.
In the control circuit of above-mentioned coolant reclaiming machine; Described A/D signaling conversion circuit comprises the sample circuit of the A/D converter, amplifier and the collection analog signal that are connected in turn; Described sample circuit is connected with weight sensor, and A/D converter is connected with central processing unit.The analog signal that common sample circuit collects is less, therefore needs to amplify through amplifier, make things convenient for A/D converter conversion.
Compared with prior art, the control circuit of this coolant reclaiming machine only needs can accomplish according to the operational order of user's input the complete set work of refrigerant recovering and filling, and is convenient and swift.The control program that only needs to revise central processing unit in addition changes the working condition of break-make and the compressor of each magnetic valve etc., can increase easily to utilize refrigerant that air-conditioning system is cleaned and function such as mediation, makes the functional diversities of coolant reclaiming machine.
Description of drawings
Fig. 1 is the principle schematic of the control circuit in this coolant reclaiming machine.
The specific embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.
As shown in Figure 1, the control circuit of this coolant reclaiming machine comprises central processing unit, to the power module of The whole control circuit supply and be connected the memory on the central processing unit.The keyboard that utilization is connected on the central processing unit instructs to the control circuit input operation, then shows concrete job step and each item operational data on the display.Control program and each item storage are in memory.
And the operate as normal of whole coolant reclaiming machine all has valve controling circuit and control relay circuit to control; Central processing unit sends control signal according to the work order of user's input to these two circuit, controls the working condition of magnetic valve, compressor and vavuum pump on the coolant reclaiming machine pipeline indirectly.
When starting working, the information that shows on the display guides the user to use keyboard input service instruction, and central processing unit sends control signal corresponding to control relay circuit and valve controling circuit after receiving concrete work order.Valve controling circuit receives after the control signal corresponding break-make of corresponding solenoid valve on the control piper, and same control relay circuit also makes compressor and vavuum pump be in the relevant work state after receiving control signal.And each item job schedule can show through display.
After the work in some stages was accomplished, display can guide the user to import next step work order again, accomplishes until whole maintenance, maintenance work.
Usually the refrigerant jar in the recovery machine is placed on the weight sensor, the surplus of refrigerant in the test refrigerant jar, surplus is presented on the display through central processing unit, makes things convenient for the timely coolant adding of user.Carry out the signal conversion and be connected sample circuit, amplifier and A/D converter between weight sensor and the central processing unit successively; The analog signal of weight sensor output is at first by the sample circuit collection; And then through the signal amplification of amplifier and the conversion of A/D converter, the data signal of final output just is input in the central processing unit.
Also storing some language character libraries in the memory, is the language that variable display shows through keyboard operation.And some significant data information also can be come out through the printer prints that is connected on the central processing unit.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (2)
1. the control circuit of a coolant reclaiming machine; It is characterized in that; This control circuit comprises central processing unit, to the power module of The whole control circuit supply and be connected memory and the signal input/output module on the central processing unit; Also be connected with the valve controling circuit of magnetic valve on the control recovery machine internal duct and the control relay circuit of control recovery machine inner compressor, vavuum pump work on the described central processing unit; Above-mentioned central processing unit sends control signal to valve controling circuit and relay circuit, the working condition of the break-make of each pipeline and compressor, vavuum pump in the control coolant reclaiming machine; Valve controling circuit receives after the control signal corresponding break-make of corresponding solenoid valve on the control piper, and control relay circuit also makes compressor and vavuum pump be in the relevant work state after receiving control signal; Be connected with weight sensor on the described central processing unit, be connected with the A/D signaling conversion circuit between weight sensor and the central processing unit; The surplus of refrigerant in the weight sensor test refrigerant jar; Surplus is presented on the display through central processing unit; Described A/D signaling conversion circuit comprises the sample circuit of the A/D converter, amplifier and the collection analog signal that are connected in turn; Described sample circuit is connected with weight sensor, and A/D converter is connected with central processing unit.
2. the control circuit of coolant reclaiming machine according to claim 1 is characterized in that, described signal input/output module comprises display and the keyboard that is connected on the central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100630640A CN101307972B (en) | 2008-07-09 | 2008-07-09 | Coolant reclaiming machine control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100630640A CN101307972B (en) | 2008-07-09 | 2008-07-09 | Coolant reclaiming machine control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101307972A CN101307972A (en) | 2008-11-19 |
| CN101307972B true CN101307972B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100630640A Active CN101307972B (en) | 2008-07-09 | 2008-07-09 | Coolant reclaiming machine control circuit |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527696B (en) * | 2022-02-16 | 2025-02-28 | 湖南三一中型起重机械有限公司 | Solenoid valve control system, method and operating machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5963198A (en) * | 1996-12-23 | 1999-10-05 | Snap-On Technologies, Inc. | Low-cost user interface for refrigerant recycling machine |
| CN2757052Y (en) * | 2004-11-13 | 2006-02-08 | 王绪和 | Automatic vacuum pumping liquid filler of digital refrigerating liquid |
| 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 |
| CN201255543Y (en) * | 2008-07-09 | 2009-06-10 | 冯纪方 | Control circuit of coolant recovering machine |
-
2008
- 2008-07-09 CN CN2008100630640A patent/CN101307972B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5963198A (en) * | 1996-12-23 | 1999-10-05 | Snap-On Technologies, Inc. | Low-cost user interface for refrigerant recycling machine |
| CN2757052Y (en) * | 2004-11-13 | 2006-02-08 | 王绪和 | Automatic vacuum pumping liquid filler of digital refrigerating liquid |
| 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 |
| CN201255543Y (en) * | 2008-07-09 | 2009-06-10 | 冯纪方 | Control circuit of coolant recovering machine |
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| CN101307972A (en) | 2008-11-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YUHUAN LANGXUN BRASS INDUSTRY CO., LTD. Free format text: FORMER OWNER: FENG JIFANG Effective date: 20120913 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120913 Address after: 317609 valve industrial zone (Yuhuan County), Taizhou, Zhejiang, China (Long Xi) Patentee after: Yuhuan Lang Copper Co.,Ltd. Address before: 317609 Yuhuan County Zhejiang valve industrial park Yuhuan lucent Copper Co., Ltd. Patentee before: Feng Jifang |
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| CI01 | Publication of corrected invention patent application |
Correction item: Patentee Correct: Yuhuan Langxun Brass Industry Co., Ltd.|317609 valve industrial zone (Yuhuan County), Taizhou, Zhejiang, China (Long Xi) False: Yuhuan Lang Copper Co., Ltd.|317609 valve industrial zone (Yuhuan County), Taizhou, Zhejiang, China (Long Xi) Number: 42 Volume: 28 |
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| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: YUHUAN LANGXUN BRASS INDUSTRY CO., LTD.:317609 TAIZHOU, ZHEJIANG PROVINCE TO: YUHUAN LANGXUN COPPER INDUSTRY CO., LTD.:317609 TAIZHOU, ZHEJIANG PROVINCE |
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| C56 | Change in the name or address of the patentee |
Owner name: TAIZHOU LANGXUN MACHINERY CO., LTD. Free format text: FORMER NAME: YUHUAN LANGXUN COPPER INDUSTRY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 317609 valve industrial zone (Yuhuan County), Taizhou, Zhejiang, China (Long Xi) Patentee after: TAIZHOU LANGXUN MACHINERY Co.,Ltd. Address before: 317609 valve industrial zone (Yuhuan County), Taizhou, Zhejiang, China (Long Xi) Patentee before: Yuhuan Langxun Brass Industry Co.,Ltd. |
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| CP03 | Change of name, title or address |
Address after: 317609 Yuhuan Valve Industrial Park, Taizhou City, Zhejiang Province (Longxi) Patentee after: Taizhou Lucent Tools Co.,Ltd. Address before: 317609 Yuhuan Valve Industrial Park, Taizhou City, Zhejiang Province (Longxi) Patentee before: TAIZHOU LANGXUN MACHINERY Co.,Ltd. |
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| CP03 | Change of name, title or address |