CN201476804U - Photoelectric frost sensor - Google Patents
Photoelectric frost sensor Download PDFInfo
- Publication number
- CN201476804U CN201476804U CN2009202223210U CN200920222321U CN201476804U CN 201476804 U CN201476804 U CN 201476804U CN 2009202223210 U CN2009202223210 U CN 2009202223210U CN 200920222321 U CN200920222321 U CN 200920222321U CN 201476804 U CN201476804 U CN 201476804U
- Authority
- CN
- China
- Prior art keywords
- heat
- base
- pedestal
- upper cover
- photoelectric
- 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 - Fee Related
Links
Images
Landscapes
- Defrosting Systems (AREA)
Abstract
The utility model discloses a photoelectric frost sensor which comprises a base, a heat conductor, a light emitter, a light receiver, an upper cover board and a fixing element, wherein the base is a flat board with two heaves, a semi-cylindrical groove is arranged in the bottom side of the flat board, the heat conductor is nested in the groove of the substrate, the top part of the heat conductor extends out of the upper surface of the flat board of the substrate, the light emitter and the light receiver are respectively positioned in the inner sides of the two heaves of the base and connected with the upper cover board into a whole body, the upper cover board is connected with the two heaves of the base, and the base is connected with the fixing element. The base is made of an electric insulating material, a heat insulating material and the like, and the heat conductor is made of a heat conducting material. The photoelectric frost sensor has the effects of directly sensing the frost layer thickness of refrigerating devices such as air source heat pump units, heat pump type air conditioners in rooms and the like, effectively controlling the defrosting operation of the refrigerating devices such as air source heat pump units, heat pump type air conditioners in rooms and the like, and further avoiding the false defrosting accidents of the refrigerating devices.
Description
Technical field
The utility model relates to a kind of photoelectric frost measuring sensor, specifically, is at refrigerating plants such as net for air-source heat pump units, pump type heat room air conditioners, utilizes photoelectric conversion technique to realize the sensor of frost thickness monitoring.
Background technology
Frosting is the key issue that influences refrigerating plant operational efficiency such as net for air-source heat pump units, pump type heat room air conditioner.The existence and the growth of frost layer have increased the heat transfer resistance of refrigerating plant heat interchanger such as net for air-source heat pump units, pump type heat room air conditioner, have reduced heat transfer coefficient, have increased air flow resistance, must be to its control that defrosts.Existing defrosting control method comprises: 1) time defrosting method; 2) heat exchanger surface temperature-time defrosting control method; 3) pressure-temperature defrosting control method; 4) heat exchanger surface rate of temperature change defrosting control method; 5) heat exchanger surface and air temperature difference defrosting control method; 6) artificial intelligence defrosting control method.Above defrosting control method by measuring the variable that influences the frosting process, as temperature, pressure, time etc., as the criterion of defrosting control, and is not the existence and height of measuring the frost layer by direct, as the criterion of defrosting control.Therefore, refrigerating plants such as net for air-source heat pump units, pump type heat room air conditioner " mistake defrosting " accident of " frostless defrosting " and " having frost not remove " often occurs in actual moving process.Causing the reason of refrigerating plants such as net for air-source heat pump units, pump type heat room air conditioner " mistake defrosting " accident is to lack the sensor that can carry out directly frost thickness, accurately monitor.
The utility model content
The purpose of this utility model is to provide a kind of photoelectricity transformation principle that utilizes, and is used for the frost measuring sensor of refrigerating plants such as net for air-source heat pump units, pump type heat room air conditioner.
In order to solve the problems of the technologies described above, the photoelectric frost measuring sensor that the utility model provides, comprise pedestal 1, heat-conducting piece 2, optical transmitting set 3, optical receiver 4, upper cover plate 5 and fixture 6, wherein pedestal 1 is the flat board that has two projectioies, in dull and stereotyped bottom side semi-cylindrical recesses is set, heat-conducting piece 2 is nested in the groove of described pedestal 1, the upper surface of pedestal 1 flat board is stretched out at heat-conducting piece 2 tops, two projectioies at pedestal 1 are inboard, place optical transmitting set 3 and optical receiver 4 respectively, optical transmitting set 3 and optical receiver 4 link into an integrated entity with upper cover plate 5, and upper cover plate 5 is connected with two projectioies of pedestal 1, and pedestal 1 is connected with fixture 6.Described pedestal 1 is materials such as insulation, thermal insulation, and described heat-conducting piece 2 is a heat-conducting.
The beneficial effects of the utility model are: (1) can effectively control Defrosting of Refrigerating Plant operations such as net for air-source heat pump units, pump type heat room air conditioner; (2) can avoid refrigerating plants such as net for air-source heat pump units, pump type heat room air conditioner " to miss and defrost " generation of accident; (3) output voltage signal " 0-1 " characteristic sensitivity, repeatable strong; (4) simple to operate, applicability is stronger.
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Description of drawings
Fig. 1 is the structural representation of the utility model photoelectric frost measuring sensor;
Among the figure, 1-pedestal, 2-heat-conducting piece, 3-optical transmitting set, 4-optical receiver, 5-upper cover plate, 6-fixture.
Embodiment
From embodiment of the present utility model shown in Figure 1 as can be known, photoelectric frost measuring sensor mainly comprises pedestal 1, heat-conducting piece 2, optical transmitting set 3, optical receiver 4, upper cover plate 5 and fixture 6.
Wherein pedestal 1 can be made by bakelite, is the flat board that has two projectioies, and it is the 3mm semi-cylindrical recesses that radius is set in dull and stereotyped bottom side, and the material of described pedestal 1 also can be plastics.The material of heat-conducting piece 2 can be copper, and heat-conducting piece 2 is nested in the semi-cylindrical recesses of pedestal 1, and the upper surface of pedestal 1 flat board is stretched out at heat-conducting piece 2 tops, and the material of described heat-conducting piece 2 also can be aluminium.Two projectioies at pedestal 1 are inboard, place optical transmitting set 3 and optical receiver 4 respectively, and optical transmitting set 3 and optical receiver 4 link into an integrated entity with upper cover plate 5, and upper cover plate 5 is connected with two projectioies of pedestal 1, and pedestal 1 is connected with fixture 6.
Utilize fixture 6 that pedestal 1 is fixed on the heat exchange manifold, heat-conducting piece 2 is closely contacted with exchanger tube wall, when the exchanger tube wall frosting, the also frosting of the top of heat-conducting piece 2, step evolution fluctuation will take place in the output voltage of optical receiver 4 this moment, fluctuate according to this step evolution and can judge that refrigerating plants such as net for air-source heat pump units, pump type heat room air conditioner should carry out defrost operation.
Claims (1)
1. photoelectric frost measuring sensor, comprise pedestal, heat-conducting piece, optical transmitting set, optical receiver, upper cover plate and fixture, it is characterized in that, described pedestal (1) is the flat board that has two projectioies, in dull and stereotyped bottom side semi-cylindrical recesses is set, heat-conducting piece (2) is nested in the groove of pedestal (1), the dull and stereotyped upper surface of pedestal (1) is stretched out at heat-conducting piece (2) top, inboard in two projectioies of pedestal (1), place optical transmitting set (3) and optical receiver (4) respectively, optical transmitting set (3) and optical receiver (4) link into an integrated entity with upper cover plate (5), and upper cover plate (5) is connected with two projectioies of pedestal (1), and pedestal (1) is connected with fixture (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202223210U CN201476804U (en) | 2009-08-28 | 2009-08-28 | Photoelectric frost sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202223210U CN201476804U (en) | 2009-08-28 | 2009-08-28 | Photoelectric frost sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201476804U true CN201476804U (en) | 2010-05-19 |
Family
ID=42413054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202223210U Expired - Fee Related CN201476804U (en) | 2009-08-28 | 2009-08-28 | Photoelectric frost sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201476804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972890A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Auto-induction microwave defrosting air cooler |
| CN105972892A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Automatic induction microwave defrosting device for air cooler |
-
2009
- 2009-08-28 CN CN2009202223210U patent/CN201476804U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972890A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Auto-induction microwave defrosting air cooler |
| CN105972892A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Automatic induction microwave defrosting device for air cooler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101639346A (en) | Photoelectric frost measuring sensor | |
| US6581849B2 (en) | Automatic semi-conductor condensate flower-watering device | |
| CN201476804U (en) | Photoelectric frost sensor | |
| CN103410196B (en) | Radiation cooling water fetching device | |
| CN102645080A (en) | Control device and control method used for controlling air door heater according to humidity | |
| CN204854130U (en) | Can realize refrigerator of accuracyization frost | |
| CN209495507U (en) | A kind of defrosting control device for cold storage refrigerating system | |
| CN201000442Y (en) | Intelligentized rapid survey cold mirror dew point hygrometer | |
| CN203364526U (en) | Dew-point control system suitable for environmental testing | |
| CN203375605U (en) | Frostless semiconductor dehumidifier | |
| CN210347506U (en) | Building envelope heat transfer coefficient test overall process monitoring device | |
| CN201377956Y (en) | Anti-dewing device of intermediate parting strips of refrigerator | |
| CN202189879U (en) | Deicing dipole antenna | |
| CN206352924U (en) | A kind of device that the solidifying frost detection of refrigerator is carried out using weight | |
| CN204347667U (en) | A kind of dehumidification system being applicable to outdoor power cabinet | |
| CN110769660B (en) | Power consumption self-adaptation data information acquisition device | |
| CN204286633U (en) | A kind of long-range chilled-mirror type dew point instrument | |
| CN203731716U (en) | Anti-freezing defrosting solar flat plate collector | |
| CN103062967B (en) | Intelligent defrosting controller | |
| CN209497116U (en) | A kind of high-tension switch cabinet Intelligent dehumidifying device | |
| CN216567388U (en) | Temperature and humidity control device of jaboticaba tree planting canopy | |
| CN221425189U (en) | Control structure and refrigerating system for intelligently controlling cold air electromechanical defrosting of refrigeration house | |
| CN206284034U (en) | A kind of vegetable culture device | |
| CN210479674U (en) | Intelligent water temperature control system based on Internet of things | |
| CN2366798Y (en) | Frozen-proof and thermal insulation tube for solar energy water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20110828 |