CN2384248Y - Low-temp automatic compensator for refrigerator - Google Patents
Low-temp automatic compensator for refrigerator Download PDFInfo
- Publication number
- CN2384248Y CN2384248Y CN 99221669 CN99221669U CN2384248Y CN 2384248 Y CN2384248 Y CN 2384248Y CN 99221669 CN99221669 CN 99221669 CN 99221669 U CN99221669 U CN 99221669U CN 2384248 Y CN2384248 Y CN 2384248Y
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- CN
- China
- Prior art keywords
- temperature sensor
- utility
- model
- temperature
- heater strip
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- Expired - Lifetime
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model relates to a low-temperature automatic compensator for a refrigerator, which has a control board CP, compensation heating wires CH, a compressor C, an environmental temperature sensor S1, etc., wherein, the control board has a single chip computer IC1 and a power amplification module IC2; an end foot R30 of the IC1 is connected with an end foot 4 of the IC2; an end foot 13 of the IC2 is connected with coils of a relay RLY3 of the compensation heating wires; the environmental temperature sensor S1, a refrigerating temperature sensor S2 and a freezing temperature sensor S3 are respectively connected with end foots R30, R31 and R32 of the IC1; the IC1 and the IC2 are respectively D4074344S and ULN2002AN. When the temperature of the utility model is lower that the set temperature, a compensation heating wire circuit is broken to carry out heating; when the temperature of the utility model is higher than the set temperature, the circuit is switched off to stop heating. The utility model has the advantage that automatic operation can be totally realized.
Description
The utility model relates to a kind of improvement of structure of refrigerator.
For common double temperature single cycle refrigeration refrigerator, lower in environment temperature, near temperature of refrigerating chamber, promptly below 16 ℃ the time, frequency situation on the low side can appear not starting or starting.In this case, start frequency in order to start refrigerator or to improve refrigerator, people paste the compensation heater strip that adds certain power below the cold storage chamber of refrigerator evaporator, open the low temp compensating heater strip by manual control, pressure improves the temperature of reefer, when environment temperature is brought up to more than 16 ℃, needs by manually closing the low temp compensating heater strip, like this, just there is accuracy that environment temperature is judged and to the problem of the loaded down with trivial details property of heater strip operation.Before the present invention finishes, do not see as yet in the document relevant for record of the present utility model, do not see relevant for constructed products of the present utility model and sell, do not see the product that people use the utility model device in daily life yet.
The purpose of this utility model is to provide a kind of refrigerator low temperature autocompensation installation, makes that people need not environment temperature is made judgement accurately, also need not heater strip is carried out loaded down with trivial details operation.
The utility model is realized with following technical proposals:
Refrigerator low temperature autocompensation installation is by control panel CP, compensation heater strip CH, and compressor C,
Environment temperature sensor S1, refrigerated storage temperature sensor S2, chilling temperature sensor S3 forms, single-chip microcomputer IC1 is arranged on the control panel CP, power amplifier module IC2, the end pin R30 of IC1 links to each other with the end pin 4 of IC2, and the end pin 13 of IC2 links to each other with the coil of compensation heater strip relay R LY3, environment temperature sensor S1, refrigerated storage temperature sensor S2, chilling temperature sensor S3 is respectively with the end pin R30 of IC1, R31, R32 links to each other.IC1, IC2 are respectively single-chip microcomputer HD4074344S, power amplification mould ULN2003AN.Before the table top of refrigerator in the panel, an environment temperature sensor is set, environment temperature sensor is connected with the computer control panel, environment temperature sensor reaches the computer control panel with the environment temperature transducing signal, on the computer control panel after A/D conversion, with the judgement of making comparisons of the predefined temperature of computer control panel, when environment temperature is lower than predefined temperature, output signal is connected the compensation heater strip circuit that is connected on the computer control panel, the compensation heater strip heats reefer, when environment temperature is higher than predefined temperature, output signal disconnects the compensation heater strip circuit that is connected on the computer control panel, the compensation heater strip stops reefer being heated, and all mentioned operations is all finished automatically, need not people and participates in.
The utility model has following good effect:
Owing to be provided with environment temperature sensor, environment temperature sensor is connected with the computer control panel, and signal is reached the computer control panel, with the judgement of making comparisons of the predefined temperature of computer control panel, when being lower than the temperature of setting, compensation heater strip circuit is connected, and heats, when being higher than the temperature of setting, circuit disconnects, stop heating, all realize operation automatically, need not people and participate in.
Below in conjunction with accompanying drawing the utility model is described in more detail:
Fig. 1 is a circuit diagram of the present utility model;
Fig. 2 is an electronic devices and components wiring diagram of the present utility model.
In the drawings, CP is a control panel, and CH is the compensation heater strip, and C is a compressor, and S1 is an environment temperature sensor, and S2 is the refrigerated storage temperature sensor, and S3 is the chilling temperature sensor, and IC1 is single-chip microcomputer HD4074344S, and IC2 is power amplifier module ULN2003AN.
When environment temperature sensor S1 experiences environment temperature and is lower than 16 ℃, the analog quantity that the end pin R30 of IC1 collects is converted to digital quantity through A/D, compare with programmed values, make the judgement of connecting the compensation heater strip, through the end pin 4 of the end pin R13 of IC1 output+5V signal to IC2, be enlarged into+the 12V signal by IC2, export the coil of compensation heater strip relay R LY3 to through end pin 13, make the contact adhesive of compensation heater strip relay R LY3, make the compensation heater strip obtain alternating current 220V voltage, thereby begin to carry out temperature compensation; When environment temperature sensor S1 experiences environment temperature and is higher than 16 ℃, the analog quantity that the end pin R30 of chip IC 1 collects is converted to digital quantity through A/D, compare with programmed values, make the judgement that disconnects the compensation heater strip, end pin R13 through IC1 stops+output of 5V signal, and the end pin 13 of IC2 also stops simultaneously+output of 12V, the coil losing electricity of compensation heater strip relay R LY3, the contact discharges, and makes the compensation heater strip stop heating.Can see that in Fig. 1 only when compressor C shut down, the coil of the compressed machine C of compensation heater strip ability formed the loop, realizes the compensation heating.When compressor is started shooting, the short circuit of compensation heater strip, the compensation heater strip does not heat.
Claims (2)
1. refrigerator low temperature autocompensation installation, it is characterized in that it is by control panel CP, compensation heater strip CH, compressor C, environment temperature sensor S1, refrigerated storage temperature sensor S2, chilling temperature sensor S3, single-chip microcomputer IC1 is arranged on the control panel CP, power amplifier module IC2, the end pin R30 of IC1 links to each other with the end pin 4 of IC2, and the end pin 13 of IC2 links to each other with the coil of compensation heater strip relay R LY3, environment temperature sensor S1, refrigerated storage temperature sensor S2, chilling temperature sensor S3 is respectively with the end pin R30 of IC1, R31, R32 links to each other.
2. refrigerator low temperature autocompensation installation according to claim 1 is characterized in that single-chip microcomputer IC1 and the power amplifier module IC2 on the said control panel CP is respectively HD4074344S and ULN2003AN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221669 CN2384248Y (en) | 1999-07-17 | 1999-07-17 | Low-temp automatic compensator for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221669 CN2384248Y (en) | 1999-07-17 | 1999-07-17 | Low-temp automatic compensator for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384248Y true CN2384248Y (en) | 2000-06-21 |
Family
ID=34012195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99221669 Expired - Lifetime CN2384248Y (en) | 1999-07-17 | 1999-07-17 | Low-temp automatic compensator for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384248Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331155A (en) * | 2011-10-19 | 2012-01-25 | 合肥美的荣事达电冰箱有限公司 | Refrigeration device and composite control device for same |
| CN104913568A (en) * | 2015-06-15 | 2015-09-16 | 南京创维电器研究院有限公司 | Large-capacity refrigerator |
-
1999
- 1999-07-17 CN CN 99221669 patent/CN2384248Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331155A (en) * | 2011-10-19 | 2012-01-25 | 合肥美的荣事达电冰箱有限公司 | Refrigeration device and composite control device for same |
| CN104913568A (en) * | 2015-06-15 | 2015-09-16 | 南京创维电器研究院有限公司 | Large-capacity refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |