CN202281341U - Dynamic pressure monitoring device of air conditioner system - Google Patents
Dynamic pressure monitoring device of air conditioner system Download PDFInfo
- Publication number
- CN202281341U CN202281341U CN2011203846790U CN201120384679U CN202281341U CN 202281341 U CN202281341 U CN 202281341U CN 2011203846790 U CN2011203846790 U CN 2011203846790U CN 201120384679 U CN201120384679 U CN 201120384679U CN 202281341 U CN202281341 U CN 202281341U
- Authority
- CN
- China
- Prior art keywords
- pressure
- air
- conditioning system
- processor
- dynamic monitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a dynamic pressure monitoring device of an air conditioner system. The device comprises a pressure sensor, a processor and a prompting device which are electrically connected, wherein the pressure sensor is used for detecting a pressure signal of a cold medium in the air conditioner system under a liquid state and converting the pressure signal into a voltage signal to be output to the processor; the processor is used for converting the voltage signal into a pressure value of the air conditioner system in real time through circuit switching and computing; and the prompting device is used for prompting according to the pressure value of the air conditioner system, which is obtained by the processor. According to the dynamic pressure monitoring device of the air conditioner system, provided by the utility model, the pressure value of a cold medium high-pressure liquid state can be dynamically monitored, whether the cold medium pressure of an air conditioner is normal and the air conditioner operates normally are held at any time through the prompting device, so that the air conditioner system is more accurately controlled.
Description
Technical field
The utility model relates to engineering truck, is meant a kind of air-conditioning system pressure dynamic monitor that is used for engineering truck especially.
Background technology
In the normal use of engineering truck; Because air-conditioning self core body (evaporimeter, condenser) leaks inaccurate, the refrigerant normal loss of filling precision of quality problems, employee's assembly quality problem, coolant charging machine; The vehicle operation environment is abominable; And the user factor such as blindly keeps in repair, and causes air-conditioning not run well; Perhaps because of system pressure when too high, the user is the short circuit pressure switch situation that causes compressor damage or high-voltage tube to burst blindly; It is on the low side few refrigerant system pressure perhaps to occur, thereby the situation of not freezing causes that the client complains.
Therefore, whether air-conditioning system pressure normally just becomes a very important decision factor.How air-conditioning system force value dynamic real-time is shown, the applying working condition of being convenient to its air-conditioning of driver dynamic understanding becomes the problem that presses for solution.
The utility model content
The utility model proposes a kind of air-conditioning system pressure dynamic monitor, with the pressure of real-time monitoring air-conditioning system, confirms the applying working condition of air-conditioning more exactly.
A kind of air-conditioning system pressure of the utility model dynamic monitor comprises pressure sensor, processor and the suggestion device of electrical connection; Wherein pressure sensor is used for detecting the pressure signal of air-conditioning system refrigerant under liquid condition, and converts pressure signal into voltage signal and export to processor; Processor is used for voltage signal being converted in real time into the force value of air-conditioning system through circuit conversion and calculating; The force value of the air-conditioning system that suggestion device is used for obtaining according to processor is pointed out.
Preferably, in the above-mentioned air-conditioning system pressure dynamic monitor, suggestion device is pressure display unit and/or alarm.Wherein,
Pressure display unit is connected with processor, is used for the force value of the air-conditioning system that real-time video-stream processor obtains.
Alarm is connected with processor, is used for when the air-conditioning system pressure anomaly, sending alarm signal; And the air-conditioning system pressure anomaly comprises following three kinds of situation: the pressure of air-conditioning system is less than the first preset predetermined threshold; The pressure of air-conditioning system is greater than the second preset predetermined threshold; And the pressure of air-conditioning system is in the Preset Time interval: the pressure that the pressure drop-out value is lower than preset value, air-conditioning system stops to rise or the pressure oscillation scope surpasses preset range.
Preferably, in the above-mentioned air-conditioning system pressure dynamic monitor, also comprise control panel; Suggestion device is arranged on the control panel; And control panel also is provided with the compressor control button, is used for according to the information of suggestion device output compressor being controlled in real time.
Preferably, in the above-mentioned air-conditioning system pressure dynamic monitor, also be provided with air-conditioning system temperature on the control panel and regulate button.
Preferably, in the above-mentioned air-conditioning system pressure dynamic monitor, control panel also is provided with the air-conditioning system wind speed and regulates button.
Preferably, in the above-mentioned air-conditioning system pressure dynamic monitor, processor is an A/D converter.
The utility model air-conditioning system pressure dynamic display device has following advantage:
The utility model can detection of dynamic refrigerant highly pressurised liquid state force value, whether normal and whether operation of air conditioner normal, make the control of air-conditioning system more accurate if grasping air conditioner coolant pressure at any time.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor first embodiment;
Fig. 2 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor second embodiment;
Fig. 3 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor the 3rd embodiment;
Fig. 4 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor the 4th embodiment;
Fig. 5 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor the 5th embodiment;
Fig. 6 is among the utility model air-conditioning system pressure dynamic monitor embodiment, the measuring circuit figure of pressure sensor;
Fig. 7 is among the utility model air-conditioning system pressure dynamic monitor embodiment, the performance diagram of pressure sensor;
Fig. 8 is among the utility model air-conditioning system pressure dynamic monitor embodiment, the sketch map of control panel.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
With reference to Fig. 1, Fig. 1 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor first embodiment.
This embodiment comprises pressure sensor 11, processor 12 and the suggestion device 13 of electrical connection; Wherein, pressure sensor 11 is used for detecting the pressure signal of air-conditioning system refrigerant under liquid condition, and converts pressure signal into voltage signal and export to processor 12; And processor 12 is used for voltage signal being converted in real time into the force value of air-conditioning system through circuit conversion and calculating; The force value of the air-conditioning system that suggestion device 13 is used for obtaining according to processor 12 is pointed out.
The utility model air-conditioning system pressure dynamic monitor embodiment can dynamic monitoring refrigerant highly pressurised liquid state force value; Pass through suggestion device; Whether normal and whether operation of air conditioner normal, make the control of air-conditioning system more accurate if grasping air conditioner coolant pressure at any time.
Embodiment two
With reference to Fig. 2, Fig. 2 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor second embodiment.
This embodiment air-conditioning system pressure dynamic monitor comprises pressure sensor 11, processor 12 and the pressure display unit 131 of electrical connection; Wherein, pressure sensor 11 is used for detecting the pressure signal of air-conditioning system refrigerant under the highly pressurised liquid state, and converts pressure signal into voltage signal and export to processor 12; Processor 12 is used for voltage signal being converted in real time into the force value of air-conditioning system through circuit conversion and calculating; Pressure display unit 131 is connected with processor 12, is used for the force value of the air-conditioning system that real-time video-stream processor 12 obtains.
The utility model air-conditioning system pressure dynamic monitor embodiment can dynamic monitoring and is shown the force value of refrigerant highly pressurised liquid state, and whether normal and whether operation of air conditioner normal, make the control of air-conditioning system more accurate if grasping air conditioner coolant pressure at any time.
Embodiment three
With reference to Fig. 3, Fig. 3 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor the 3rd embodiment.
This embodiment air-conditioning system pressure dynamic monitor comprises pressure sensor 11, processor 12 and the alarm 132 of electrical connection; Wherein, pressure sensor 11 is used for detecting the pressure signal of air-conditioning system refrigerant under the highly pressurised liquid state, and converts pressure signal into voltage signal and export to processor 12; Processor 12 is used for voltage signal being converted in real time into the force value of air-conditioning system through circuit conversion and calculating; Alarm 132 is connected with processor 12, and the force value of the air-conditioning system that is used for confirming according to processor 12 is judged whether air-conditioning system pressure is unusual, and when pressure anomaly, sent alarm signal.
Here, whether just often to judge air-conditioning system pressure, can consider following three kinds of situation:
1), when the pressure (high-pressure) of air-conditioning system less than a certain predetermined value the time, send the chimes of doom of continuous " toot ", the expression hypotony;
2), when the pressure of air-conditioning system greater than another predetermined threshold value the time, send the chimes of doom of continuous two " toots ", the expression hypertonia;
3), obviously descend or do not rise always when the pressure of air-conditioning system, or the pressure oscillation scope is bigger, then sends the chimes of doom of continuous three " toot ", and abnormal conditions such as leaking perhaps obstruction have expressed possibility.
The utility model air-conditioning system pressure dynamic monitor embodiment can the dynamic monitoring air-conditioning system pressure, and have warning function, can be according to the abnormal conditions of force value dynamic reminding air conditioning pressure, intuitive is very strong, is convenient to the classification of failure judgement.
Embodiment four
With reference to Fig. 4, Fig. 4 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor the 4th embodiment.
This embodiment air-conditioning system pressure dynamic monitor comprises pressure sensor 11, processor 12, pressure display unit 131 and the alarm 132 of electrical connection; Wherein, pressure sensor 11 is used for detecting the pressure signal of air-conditioning system refrigerant under the highly pressurised liquid state, and converts pressure signal into voltage signal and export to processor 12; Processor 12 is used for voltage signal being converted in real time into the force value of air-conditioning system through circuit conversion and calculating; Pressure display unit 131 is connected with processor 12, is used for the force value of the air-conditioning system that real-time video-stream processor 12 obtains; Alarm 132 also is connected with processor 12, and the force value of the air-conditioning system that is used for confirming according to processor 12 is judged whether air-conditioning system pressure is unusual, and when pressure anomaly, sent alarm signal.
The utility model air-conditioning system pressure dynamic monitor embodiment has following advantage:
The first, pass through the cooperation of pressure sensor, processor and pressure display unit; Can dynamic monitoring and show the force value of refrigerant highly pressurised liquid state; Whether normal and whether operation of air conditioner normal, make the control of air-conditioning system more accurate if grasping air conditioner coolant pressure at any time.
The second, pass through the cooperation of pressure sensor, processor and alarm; Pressure that not only can the dynamic monitoring air-conditioning system, and have warning function, can be according to the abnormal conditions of force value dynamic reminding air conditioning pressure; Intuitive is very strong, is convenient to the classification of failure judgement.
Of embodiment two, whether just often to judge air-conditioning system pressure, can consider following three kinds of situation:
1), when the pressure (high-pressure) of air-conditioning system less than a certain predetermined value the time, send the chimes of doom of continuous " toot ", the expression hypotony;
2), when the pressure of air-conditioning system greater than another predetermined threshold value the time, send the chimes of doom of continuous two " toots ", the expression hypertonia;
3), obviously descend or do not rise always when the pressure of air-conditioning system, or the pressure oscillation scope is bigger, then sends the chimes of doom of continuous three " toot ", and abnormal conditions such as leaking perhaps obstruction have expressed possibility.
Embodiment five
With reference to Fig. 5, Fig. 5 is the structured flowchart of the utility model air-conditioning system pressure dynamic monitor the 5th embodiment.
This air-conditioning system pressure dynamic monitor embodiment comprises the pressure sensor 11, processor 12, pressure display unit 131, alarm 132 of electrical connection, the compressor control button 15 that is connected with compressor of air conditioner 17; And processor 12, pressure display unit 131 and compressor control button 15 all are arranged on the control panel 16.
Wherein, pressure sensor 11 is used for detecting the pressure signal of air-conditioning system refrigerant under the highly pressurised liquid state, and converts pressure signal into voltage signal and export to processor 12; Processor 12 is used for voltage signal being converted in real time into the force value of air-conditioning system through circuit conversion and calculating; Pressure display unit 131 is connected with processor 12, is used for the force value of the air-conditioning system that real-time video-stream processor 12 obtains; During air-conditioning system work; Pressure sensor 13 converts the pressure signal of air-conditioning system into voltage signal and exports to processor 12; Processor 12 is through the voltage signal of sampled pressure sensor; Through circuit conversion and calculating, on the pressure display unit 131 of control panel, show output to the force value of air-conditioning system.Alarm 132 also is connected with processor 12, and the force value of the air-conditioning system that is used for confirming according to processor 12 is judged whether air-conditioning system pressure is unusual, and when pressure anomaly, sent alarm signal.
Of above-mentioned three embodiment, whether just often to judge air-conditioning system pressure, can consider following three kinds of situation:
1) when the pressure (high-pressure) of air-conditioning system less than 1MPa the time, send the chimes of doom of continuous " toot ", the expression hypotony;
2) when pressure greater than 3MPa the time, send the chimes of doom of continuous two " toots ", the expression hypertonia;
3) when pressure or obviously descend and do not rise always, or the pressure oscillation scope is bigger, then sends the chimes of doom of continuous three " toot ", and abnormal conditions such as leaking perhaps obstruction have expressed possibility.
Certainly, also can confirm other abnormal conditions, and set alarm signal for it according to the operating mode of reality.
With reference to Fig. 6.Fig. 6 is the measuring circuit of pressure sensor 13.Wherein, pressure sensor 13 comprises three ports, port one, port 2 and port 3.Wherein, port one meets power supply V
CC(+5V); Port 3 power-interfaces (meeting GND), port 2 is the output of pressure sensor 13.A/D converter is a kind of form of processor, comprises two ports, and one of them port is connected with the port 2 of pressure sensor, and the port 3 of another port and pressure sensor meets GND simultaneously.And, also be connected with pull-up resistor R between pressure sensor and the A/D converter.
In one embodiment, the characteristic curve of pressure sensor 13 is as shown in Figure 7: wherein, and abscissa P
InBe input pressure, ordinate v
OutBe output voltage signal.Among this embodiment,
v
out＝v
cc×(0.29665×P
in+0.02)
The difference of present embodiment and embodiment three is, has increased a control panel 16, and pressure display unit 131, processor 12 and compressor control button 15 all are arranged on the control panel 16.
Therefore, present embodiment has following advantage:
The first, pass through the cooperation of pressure sensor, processor and pressure display unit; Can dynamic monitoring and show the force value of refrigerant highly pressurised liquid state; Whether normal and whether operation of air conditioner normal, make the control of air-conditioning system more accurate if grasping air conditioner coolant pressure at any time.
The second, pass through the cooperation of pressure sensor, processor and alarm; Pressure that not only can the dynamic monitoring air-conditioning system, and have warning function, can be according to the abnormal conditions of force value dynamic reminding air conditioning pressure; Intuitive is very strong, is convenient to the classification of failure judgement.
Three, adopt the compressor control button to realize dynamically control to compressor operation according to the plug-in of control panel and the size of air-conditioning system force value; And, because the compressor control button has substituted the pressure switch in the prior art mesohigh pipeline, therefore, reduced the trouble point of system, reduced maintenance cost.
In addition, can also be provided with other buttons on the control panel 16, for example, air-conditioning system temperature is regulated button, the air-conditioning system wind speed is regulated button etc.With the control of further reinforcement to air-conditioning system.
With reference to Fig. 8, Fig. 8 is in one embodiment, the structural representation of control panel.This control panel comprises that display 80, temperature rise button 70, temperature and fall button 71, wind speed and rise button 78, wind speed and fall button 79, system closing button 72, regulate button 73, compressor control button 74, inside and outside gas button 75 defrosting button 76 and mode key 77 automatically.Through these buttons, can realize corresponding function.
Among this embodiment, the same position that all appears at display 80 that pressure display and temperature show.When showing pressure, degree centigrade " ℃ " icon can not show, on the control panel long by a certain button or a certain Macintosh after, on control panel, show pressure; Reduced unit is a 1MP=10 kilogram pressure.This embodiment is shown as a kilogram pressure.
For example: if system pressure is: 0.53MP, then be shown as 05.3,
If system pressure is: 1.36MP, then be shown as 13.6,
If system pressure is: 2.25MP, then be shown as 22.5,
The system pressure value refreshed once in per 2 seconds
To sum up, the utlity model has following advantage:
The first, through pressure sensor can detection of dynamic refrigerant highly pressurised liquid state force value; Then force value is delivered on the control panel and dynamically shows; Play the effect of the leakage situation of dynamic tracking air conditioner coolant; And then whether normal and whether operation of air conditioner normal, make the control of system also more accurate if grasping air conditioner coolant pressure at any time.
The second, the utility model has been cancelled the pressure switch in the prior art mesohigh pipeline, thereby has reduced the trouble point, has reduced maintenance cost.
The 3rd, the control panel plug-in can dynamically be controlled compressor and run well according to the size of force value.
Four, have warning function, can be according to the abnormal conditions of force value dynamic reminding air conditioning pressure, intuitive is very strong, is convenient to the classification of failure judgement.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. an air-conditioning system pressure dynamic monitor is characterized in that,
The pressure sensor (11), processor (12) and the suggestion device (13) that comprise electrical connection; Wherein
Said pressure sensor (11) is used for detecting the pressure signal of air-conditioning system refrigerant under liquid condition, and converts said pressure signal into voltage signal and export to said processor (12); And
Said processor (12) is used for said voltage signal being converted in real time into the force value of air-conditioning system through circuit conversion and calculating;
The force value of the air-conditioning system that said suggestion device (13) is used for obtaining according to said processor (12) is pointed out.
2. air-conditioning system pressure dynamic monitor according to claim 1 is characterized in that,
Said suggestion device is pressure display unit (131);
Said pressure display unit (131) is connected with said processor (12), is used for showing in real time the force value of the air-conditioning system that said processor (12) obtains.
3. air-conditioning system pressure dynamic monitor according to claim 1 is characterized in that,
Said suggestion device is for comprising alarm (132);
Said alarm (132) is connected with said processor (12), is used for when said air-conditioning system pressure anomaly, sending alarm signal; And,
Said air-conditioning system pressure anomaly comprises following three kinds of situation:
The pressure of air-conditioning system is less than the first preset predetermined threshold;
The pressure of air-conditioning system is greater than the second preset predetermined threshold; And
The pressure of air-conditioning system is in the Preset Time interval: the pressure that the pressure drop-out value is lower than preset value, air-conditioning system stops to rise or the pressure oscillation scope surpasses preset range.
4. air-conditioning system pressure dynamic monitor according to claim 1 is characterized in that,
Said suggestion device comprises pressure display unit (131) and alarm (132); Wherein
Said pressure display unit (131) is connected with said processor (12), is used for showing in real time the force value of the air-conditioning system that said processor (12) obtains; And
Said alarm (14) is connected with said processor (12), is used for when said air-conditioning system pressure anomaly, sending alarm signal; And,
Said air-conditioning system pressure anomaly comprises following three kinds of situation:
The pressure of air-conditioning system is less than the first preset predetermined threshold;
The pressure of air-conditioning system is greater than the second preset predetermined threshold; And
The pressure of air-conditioning system is in the Preset Time interval: the pressure that the pressure drop-out value is lower than preset value, air-conditioning system stops to rise or the pressure oscillation scope surpasses preset range.
5. according to each described air-conditioning system pressure dynamic monitor in the claim 1 to 4, it is characterized in that,
Also comprise control panel (16);
Said suggestion device (13) is arranged on the said control panel (16); And
Said control panel (16) also is provided with compressor control button (15), is used for according to the information of said suggestion device (13) output compressor being controlled in real time.
6. air-conditioning system pressure dynamic monitor according to claim 5 is characterized in that,
Also be provided with air-conditioning system temperature on the said control panel (16) and regulate button.
7. air-conditioning system pressure dynamic monitor according to claim 6 is characterized in that,
Said control panel (16) also is provided with the air-conditioning system wind speed and regulates button.
8. air-conditioning system pressure dynamic monitor according to claim 1 is characterized in that,
Said processor (12) is an A/D converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203846790U CN202281341U (en) | 2011-10-11 | 2011-10-11 | Dynamic pressure monitoring device of air conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203846790U CN202281341U (en) | 2011-10-11 | 2011-10-11 | Dynamic pressure monitoring device of air conditioner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202281341U true CN202281341U (en) | 2012-06-20 |
Family
ID=46227508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203846790U Expired - Lifetime CN202281341U (en) | 2011-10-11 | 2011-10-11 | Dynamic pressure monitoring device of air conditioner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202281341U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075639A (en) * | 2012-12-30 | 2013-05-01 | 山东金宇轮胎有限公司 | Compressed air control system and method |
| CN104006934A (en) * | 2014-06-05 | 2014-08-27 | 珠海格力电器股份有限公司 | Detection system, method and device and air conditioner |
| CN104990204A (en) * | 2015-06-04 | 2015-10-21 | 广东美的制冷设备有限公司 | Variable-frequency air conditioner and pressure detection method and device thereof |
| CN105673470A (en) * | 2016-03-24 | 2016-06-15 | 安庆市鸿裕工业产品设计有限公司 | Operation pressure regulating and prompting device of compressor |
| CN106766028A (en) * | 2017-01-17 | 2017-05-31 | 上海元上科技股份有限公司 | A kind of closing pipe line control system |
| CN107467704A (en) * | 2017-07-25 | 2017-12-15 | 广州能之原科技股份有限公司 | A kind of tobacco heat pump dryer alarm for high voltage processing method and system |
| CN109406045A (en) * | 2018-09-27 | 2019-03-01 | 浙江众泰汽车制造有限公司 | Automotive air-conditioning system pressure test device and automotive air-conditioning system method for testing pressure |
| CN111238098A (en) * | 2018-11-29 | 2020-06-05 | 桂林航天工业学院 | Real-time monitoring system for air conditioner heat exchanger |
-
2011
- 2011-10-11 CN CN2011203846790U patent/CN202281341U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075639A (en) * | 2012-12-30 | 2013-05-01 | 山东金宇轮胎有限公司 | Compressed air control system and method |
| CN104006934A (en) * | 2014-06-05 | 2014-08-27 | 珠海格力电器股份有限公司 | Detection system, method and device and air conditioner |
| CN104006934B (en) * | 2014-06-05 | 2017-02-15 | 珠海格力电器股份有限公司 | Detection system, method and device and air conditioner |
| CN104990204A (en) * | 2015-06-04 | 2015-10-21 | 广东美的制冷设备有限公司 | Variable-frequency air conditioner and pressure detection method and device thereof |
| CN105673470A (en) * | 2016-03-24 | 2016-06-15 | 安庆市鸿裕工业产品设计有限公司 | Operation pressure regulating and prompting device of compressor |
| CN106766028A (en) * | 2017-01-17 | 2017-05-31 | 上海元上科技股份有限公司 | A kind of closing pipe line control system |
| CN107467704A (en) * | 2017-07-25 | 2017-12-15 | 广州能之原科技股份有限公司 | A kind of tobacco heat pump dryer alarm for high voltage processing method and system |
| CN109406045A (en) * | 2018-09-27 | 2019-03-01 | 浙江众泰汽车制造有限公司 | Automotive air-conditioning system pressure test device and automotive air-conditioning system method for testing pressure |
| CN111238098A (en) * | 2018-11-29 | 2020-06-05 | 桂林航天工业学院 | Real-time monitoring system for air conditioner heat exchanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202281341U (en) | Dynamic pressure monitoring device of air conditioner system | |
| CN201188050Y (en) | On-line monitoring device for SF6 gas leakage base on multi-sensor | |
| CN201258784Y (en) | Diesel engine generating set control measurement protective system | |
| CN104198935B (en) | A kind of dynamic pressure parameter of electric machine monitoring system and the method for monitoring | |
| CN201638348U (en) | Automobile air conditioner self-inspection alarm system | |
| CN205334254U (en) | Water level monitor control device | |
| CN103336524B (en) | A kind of Retarder electric-control system test and diagnostic device | |
| CN201130424Y (en) | System for monitoring dynamic quality of diesel locomotive | |
| CN102890210A (en) | Fault detection device and method | |
| CN102997606B (en) | Refrigerator | |
| CN201397473Y (en) | Testing equipment of traction controller | |
| CN201297940Y (en) | Motor meter and diagnostic system thereof | |
| CN208588938U (en) | Pure electric vehicle diagnoses debugging system | |
| CN104354596A (en) | Battery pack safety detection circuit and detection method | |
| CN103424148A (en) | Vehicle and on-line monitoring system of electric fan for vehicle | |
| CN112034822A (en) | Detection device and detection method for automatic switch controller | |
| CN204103460U (en) | The undervoltage protection device of Switching Power Supply and there is its Switching Power Supply | |
| CN202098419U (en) | Direct-alternating-current motor vehicle control system | |
| CN204103461U (en) | The undervoltage protection device of Switching Power Supply and there is its Switching Power Supply | |
| CN112782462A (en) | Direct-current voltage detection alarm system based on electric field measurement and detection method thereof | |
| CN201174595Y (en) | Selection type reactive compensating controller having diagnosis function | |
| CN206067423U (en) | A kind of air conditioning for automobiles diagnostic system and air conditioning for automobiles | |
| CN101804270B (en) | Differential pressure transmitter device of filter | |
| CN102928658A (en) | Refrigeration equipment, refrigerator and device with real-time energy consumption monitoring function | |
| CN220896323U (en) | Direct-current power supply device of vehicle air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130507 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130507 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |