CN202792803U - Refrigerator with formaldehyde detecting device - Google Patents
Refrigerator with formaldehyde detecting device Download PDFInfo
- Publication number
- CN202792803U CN202792803U CN 201220333386 CN201220333386U CN202792803U CN 202792803 U CN202792803 U CN 202792803U CN 201220333386 CN201220333386 CN 201220333386 CN 201220333386 U CN201220333386 U CN 201220333386U CN 202792803 U CN202792803 U CN 202792803U
- Authority
- CN
- China
- Prior art keywords
- refrigerator
- formaldehyde
- examination device
- formaldehyde examination
- module
- 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 provides a refrigerator with a formaldehyde detecting device. The formaldehyde detecting device is arranged on the refrigerator. The formaldehyde detecting device is connected to a refrigerator circuit. The formaldehyde detecting device comprises a formaldehyde sensing module which is connected with a signal amplification module which is in communication with a conversion analysis module which is connected with a display window. The refrigerator with the formaldehyde detecting device is low in cost, arranged hardware on the refrigerator can be used for a formaldehyde detecting power supply, the conversion analysis module and the display window, extra cost does not need to be added, and accordingly detecting cost is lower than that of other detecting modes, common families can all afford the refrigerator, detecting results are visualized, formaldehyde content can be detected for a long time, and the appearance of the whole refrigerator is simple and attractive.
Description
Technical field
The utility model relates to a kind of refrigerator, is specifically related to a kind of refrigerator with the formaldehyde examination device, belongs to the refrigerator production technical field.
Background technology
In recent years, along with the improvement of people's housing condition, acquired new furniture, the phenomenon of the chamber that embellishes the new house is more and more general, but simultaneously in the room air composition and the content of pernicious gas also increasing, wherein general with formaldehyde and endanger huge.Whether content of formaldehyde exceeds standard and has become numerous consumer demands in the detection air, but in the market common checkout gear exist complex operation, price high, be unsuitable for the shortcoming such as long term monitoring, and the relevant formaldehyde examination device of ornaments can take the interior space separately, affects indoor attractive in appearance, clean and tidy.
The utility model content
For the deficiency that prior art exists, technical problem to be solved in the utility model is, a kind of refrigerator with the formaldehyde examination device is provided, and intuitively as seen testing result can detect for a long time content of formaldehyde, and the refrigerator monnolithic case is succinctly attractive in appearance.
For solving the problems of the technologies described above, technical solution adopted in the utility model is, a kind of refrigerator with the formaldehyde examination device, at refrigerator the formaldehyde examination device is set, its formaldehyde examination device connects refrigerator circuit, and the formaldehyde examination device comprises the formaldehyde sensing module, and the formaldehyde sensing module connects the signal amplification module, signal amplification module and transformational analysis module communication, the transformational analysis module connects display window.
The above-mentioned refrigerator with the formaldehyde examination device, its formaldehyde sensing module is for detecting the semiconductor type sensor of content of formaldehyde.
The above-mentioned refrigerator with the formaldehyde examination device, its signal amplification module is amplifying circuit, receives the voltage analog signal of formaldehyde sensing module transmission and amplifies this signal.
The above-mentioned refrigerator with the formaldehyde examination device, its transformational analysis module comprises the master board of analyzing and processing signal data, master board connects the refrigerator display panel circuit that amplifying signal is carried out the A/D conversion process.
The above-mentioned refrigerator with the formaldehyde examination device, its master board connects alarm.
The above-mentioned refrigerator with the formaldehyde examination device, its formaldehyde examination device is embedded on the refrigerator freezing door, and the formaldehyde examination crust of the device arranges passage.
Refrigerator with the formaldehyde examination device of the present utility model makes refrigerator have the formaldehyde of detection and warning function.
The formaldehyde examination device connects refrigerator circuit, provides power supply by refrigerator, the continuation that assurance detects and stability, and simultaneously effective reduced volume is convenient to be embedded in refrigerator door or the shell.
The formaldehyde sensing module adopts the semiconductor type sensor to detect content of formaldehyde free in the air that enters passage, and convert corresponding voltage analog signal to, after the amplifying circuit amplification of this voltage analog signal by the signal amplification module, by the refrigerator display panel circuit this signal is carried out the A/D conversion process and obtain data signal, and by master board, that is: refrigerator display panel MCU carries out analyzing and processing to data signal, be presented on the display window after drawing testing result, if the testing result severe overweight then starts alarm.
The utlity model has following advantage and useful technique effect:
1, easy to operate, testing result intuitively as seen, average family can carry out indoor formaldehyde content and detect, and need not by professional testing agency or buys professional instrument.
2, with low cost, PARA FORMALDEHYDE PRILLS(91,95) checkout gear power supply, transformational analysis module and display window all can use refrigerator to have hardware, need not to increase extra cost, so testing cost is lower than other detection modes, and average family all can be accepted.
3, can monitor by long-term, stable PARA FORMALDEHYDE PRILLS(91,95) content, uninterruptedly show in real time testing result, rather than through showing disposable result after the long-time sample detecting.
4, detect accurately, be quick on the draw, can judge pollution level according to testing result, when serious pollution, can reach alarm.
5, the formaldehyde examination device is hidden in the refrigerator freezing door inboard, and volume is little, does not take the interior space, also can not affect refrigerator outward appearance and overall performance.
Description of drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is formaldehyde sensing module circuit diagram of the present utility model;
Fig. 3 is the utility model signal amplification module circuit diagram;
Fig. 4 is use view of the present utility model.
In the above-mentioned accompanying drawing:
The 1-refrigerator, 2-formaldehyde examination device, 3-refrigerator circuit, 4-formaldehyde sensing module, 5-signal amplification module, 6-transformational analysis module, 7-display window, 8-master board, 9-refrigerator display panel circuit, 10-alarm, 11-passage.
The specific embodiment
Such as Fig. 1 and shown in Figure 4, the refrigerator with the formaldehyde examination device of present embodiment arranges formaldehyde examination device 2 at refrigerator 1, and formaldehyde examination device 2 is embedded on refrigerator 1 door of refrigerator, and formaldehyde examination device 2 shells arrange passage 11.Formaldehyde examination device 2 connects refrigerator circuit 3, and formaldehyde examination device 2 comprises formaldehyde sensing module 4, and formaldehyde sensing module 4 connects signal amplification module 5, signal amplification module 5 and 6 communications of transformational analysis module, and transformational analysis module 6 connects display window 7.Formaldehyde sensing module 4 is for detecting the semiconductor type sensor of content of formaldehyde.Signal amplification module 5 is amplifying circuit, receives the voltage analog signal of formaldehyde sensing module transmission and amplifies this signal.Transformational analysis module 6 comprises the master board 8 of analyzing and processing signal data, and master board 8 connects the refrigerator display panel circuit 9 that amplifying signal is carried out the A/D conversion process.Master board 8 connects alarm 10.
As shown in Figure 2, formaldehyde sensing module 4 is selected the semiconductor type sensor, provides 5V voltage by refrigerator circuit, and the working sensor condition is: between the environment temperature-10 ℃ ~ 50 ℃, humidity is lower than the condensation point, meets home environment fully.The operation principle of formaldehyde sensing module is: with the increase of content of formaldehyde in the air, the resistance of circuit inductance resistance R s in the formaldehyde sensing module will diminish, its concrete Changing Pattern can be with reference to the β (Rs of selected formaldehyde sensing module, gas/Rs, air) value change curve, the variation of Rs resistance causes the variation of output voltage V out.By regulating trimmer potentiometer VR, the PARA FORMALDEHYDE PRILLS(91,95) sensing module is calibrated, and guarantees that reference voltage is accurate.
As shown in Figure 3, signal amplification module 5 is selected the LMV324I operational amplifier that the Vout analog voltage signal is carried out the multichannel amplification and is processed, output analog voltage signal ADC_SENSOR.Analog voltage signal ADC_SENSOR carries out the A/D conversion process by refrigerator display panel circuit 9, and master board 8 refrigerator master board MCU carry out analyzing and processing to the data signal that obtains, and draw testing result.
Result of determination with formaldehyde examination is divided into Three regions in advance: be pollution-free when content of formaldehyde is lower than the 0.1mg/m3 that stipulates among the GB-18883; It is intermediate pollution when content of formaldehyde is between 0.1mg/m3 ~ 0.3mg/m3; It is serious pollution when content of formaldehyde is higher than 0.3mg/m3.
When refrigerator master board MCU judges which interval detected value belongs to, and result of determination is presented on the display screen, the user can understand intuitively pollution condition rather than only see detection numerical value,
If the testing result severe overweight then starts alarm 10.
Unaffected for guaranteeing the refrigerator product front appearance, the formaldehyde examination device is installed in the chamber door side, and its concrete mounting means is: with the embedded reveal face that is fixed in of mounting box, then formaldehyde examination device 2 is installed in the door foaming operation, connect the refrigerator inside circuit, end cap is installed at last.End cap is concordant with the door body side surface, does not affect outward appearance.A plurality of passages 11 are arranged on the end cap, unaffected to guarantee formaldehyde sensor sensitivity.
The above, only be to preferred embodiment of the present utility model, be not to be that the utility model is done other forms of restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every the utility model scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to protection domain of the present utility model according to technical spirit of the present utility model.
Claims (6)
1. refrigerator with the formaldehyde examination device, at refrigerator the formaldehyde examination device is set, it is characterized in that: described formaldehyde examination device connects refrigerator circuit, the formaldehyde examination device comprises the formaldehyde sensing module, the formaldehyde sensing module connects the signal amplification module, signal amplification module and transformational analysis module communication, the transformational analysis module connects display window.
2. the refrigerator with the formaldehyde examination device according to claim 1 is characterized in that: described formaldehyde sensing module is for detecting the semiconductor type sensor of content of formaldehyde.
3. the refrigerator with the formaldehyde examination device according to claim 1, it is characterized in that: described signal amplification module is amplifying circuit, receives the voltage analog signal that the formaldehyde sensing module sends and also amplifies this signal.
4. the refrigerator with the formaldehyde examination device according to claim 1, it is characterized in that: described transformational analysis module comprises the master board of analyzing and processing signal data, master board connects the refrigerator display panel circuit that amplifying signal is carried out the A/D conversion process.
5. the refrigerator with the formaldehyde examination device according to claim 4 is characterized in that: described master board connection alarm.
6. the refrigerator with the formaldehyde examination device according to claim 1, it is characterized in that: described formaldehyde examination device is embedded on the refrigerator freezing door, and the formaldehyde examination crust of the device arranges passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333386 CN202792803U (en) | 2012-07-11 | 2012-07-11 | Refrigerator with formaldehyde detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333386 CN202792803U (en) | 2012-07-11 | 2012-07-11 | Refrigerator with formaldehyde detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202792803U true CN202792803U (en) | 2013-03-13 |
Family
ID=47820055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220333386 Expired - Lifetime CN202792803U (en) | 2012-07-11 | 2012-07-11 | Refrigerator with formaldehyde detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202792803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277954A (en) * | 2013-06-06 | 2013-09-04 | 合肥美的电冰箱有限公司 | Refrigerator |
| CN107884455A (en) * | 2017-12-12 | 2018-04-06 | 朱明君 | A kind of refrigerator with formaldehyde examination device |
-
2012
- 2012-07-11 CN CN 201220333386 patent/CN202792803U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277954A (en) * | 2013-06-06 | 2013-09-04 | 合肥美的电冰箱有限公司 | Refrigerator |
| CN107884455A (en) * | 2017-12-12 | 2018-04-06 | 朱明君 | A kind of refrigerator with formaldehyde examination device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100565124C (en) | A kind of portable grain information detection device | |
| CN201955259U (en) | Air sampler | |
| CN205175464U (en) | Quality intelligence short -term test appearance is synthesized to portable air | |
| CN201307022Y (en) | Indoor air real-time monitoring and warning alarm | |
| CN203324245U (en) | Air quality detection device | |
| CN202792803U (en) | Refrigerator with formaldehyde detecting device | |
| CN201417180Y (en) | Temperature and humidity detection alarm | |
| CN203385442U (en) | Indoor air quality monitor | |
| CN203083613U (en) | Multi-sensor instrument | |
| CN202836624U (en) | Intelligent home environmental management device | |
| CN205144562U (en) | Intelligence PFT detector | |
| CN204202646U (en) | A kind of indoor air quality monitor | |
| CN204314274U (en) | The baseline air generator of calibration air quality | |
| CN201653956U (en) | Household USB plug and play gas detector | |
| CN202734862U (en) | Device capable of monitoring quality of environment through cell phone | |
| CN205003145U (en) | Multi -functional portable water quality testing appearance | |
| CN208606795U (en) | A kind of multi-parameter environment monitoring device | |
| CN203116785U (en) | Measurement revising membrane-type gas meter | |
| CN204165600U (en) | A kind of air quantity shield | |
| CN203552395U (en) | Household movable smoke alarm detector | |
| CN206787617U (en) | A kind of intelligent integrated determining instrument of indoor air quality | |
| CN206234977U (en) | A kind of air quality detector device that can control VMC | |
| CN203163771U (en) | Temperature and humidity monitoring and early warning instrument | |
| CN208283325U (en) | A kind of wall buried type air detection instrument | |
| CN201876448U (en) | Toxic gas detector for chemical laboratory |
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: HISENSE (SHANDONG) REFRIGERATOR CO., LTD. Free format text: FORMER OWNER: HISENSE (BEIJING) ELECTRICAL EQUIPMENT CO., LTD. Effective date: 20140403 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 266101 QINGDAO, SHANDONG PROVINCE TO: 266061 QINGDAO, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140403 Address after: 266061 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. Address before: 266101 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE BEIJING ELECTRIC Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |