CN201754251U - Cooling and heating control circuit - Google Patents
Cooling and heating control circuit Download PDFInfo
- Publication number
- CN201754251U CN201754251U CN2010202603621U CN201020260362U CN201754251U CN 201754251 U CN201754251 U CN 201754251U CN 2010202603621 U CN2010202603621 U CN 2010202603621U CN 201020260362 U CN201020260362 U CN 201020260362U CN 201754251 U CN201754251 U CN 201754251U
- Authority
- CN
- China
- Prior art keywords
- loop
- cooling
- triode
- relay
- control circuit
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 title abstract description 10
- 239000004065 semiconductor Substances 0.000 claims abstract description 20
- 230000005669 field effect Effects 0.000 claims description 13
- 238000010792 warming Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model discloses a cooling and heating control circuit, which comprises a triode and a medium-power relay. A base electrode of the triode is connected with a cooling and heating transfer switch through a resistor, a collecting electrode of the triode is connected with a first external power supply through a diode, the collecting electrode of the triode is further connected with an electromagnet of a relay in series, and the other end of the electromagnet is also connected with the first external power supply. The medium-power relay comprises a first loop and a second loop, wherein the first loop comprises a first normally open contact and a first normally close contact, the second loop comprises a second normally open contact and a second normally close contact, the first normally open contact and the second normally close contact are connected with a second external power supply, and the first normally close contact and the second normally open contact are connected with each other, and are connected with a switch signal end through a field transistor. The first loop and the second loop are further connected with a first semiconductor cooling plate and a second semiconductor cooling plate. The cooling and heating control circuit has relatively simple structure, and greatly increases stability and reliability simultaneously. Because the field transistor is used as a switch for control, break-make noise of the relay cannot be generated during the process of temperature control.
Description
Technical field
The utility model relates to a kind of control circuit, especially a kind of cooling and warming control circuit.
Background technology
What traditional cold and hot control circuit adopted is the double relay structure, circuit structure more complicated, the stability of product, the property examined is poor, in temperature control, return simultaneously the break-make noise of generation relay, during user's rest, relatively seriously influence user's sleep at night.
Summary of the invention
In order to solve traditional control deficiency, this product is adopted as single relay control, utilize the normally closed of relay, normally opened contact, the principle that heats in conjunction with semiconductor refrigerating, cooperate field effect transistor, carry out switch control, its advantage circuit structure is simple relatively, and reliability improves greatly simultaneously, owing to adopt field effect transistor to do switch control, can not produce the noise of relay on-off in the temperature controlled processes of place.
The disclosed a kind of refrigerating/heating control circuit of the utility model is characterized in that, comprising:
One triode, the base stage of described triode links to each other with a cooling and warming switch by a resistance, the collector of described triode links to each other with first external power by a diode, the collector of described triode also is in series with the electromagnet of a relay, and the other end of described electromagnet also links to each other with first external power;
Power relay in one, comprise first, second loop, described first loop comprises first normally opened contact and first normally closed contact, described second loop comprises second normally opened contact and second normally closed contact, described first normally opened contact is connected second external power with second normally closed contact, described first normally closed contact links to each other with described second normally opened contact, and links to each other with the switching signal end by a field effect transistor; Described first loop also is connected first semiconductor chilling plate and second semiconductor chilling plate with second loop.
Reasonable is that described field effect transistor is a big current low voltage N channel field-effect pipe.
Reasonable is that described first, second external power is the direct supply of 12V.
The utility model is converted to automatic switching current direction and on-off action under the state of heating in refrigeration, this design is applicable to that simultaneously any employing semiconductor refrigerating heats the household appliances of middle low power, its advantage is, circuit structure is simple and practical, stable and reliable for performance, simultaneously with low cost, in product, realize easily.
Description of drawings
Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
See also accompanying drawing, refrigerating/heating control circuit of the present utility model comprises a triode Q1, the base stage of triode Q1 links to each other with a cooling and warming switch K1 by a resistance R 2, the collector of triode Q1 links to each other with the 12V power supply of outside by a diode D1, the collector of triode Q1 also is in series with the electromagnet of relay R J1 in addition, be pin 7 and pin 8, the other end of this electromagnet also links to each other with the 12V power supply.
In addition, also comprise a middle power relay RJ1 in the control circuit, this relay is a two-way, promptly illustrate road 1 and 2, four contacts (are contact 3,4,5,6), wherein respectively there is a normally opened contact (being contact 3,5) on road 1 and road 2, and a normally closed contact (is contact 2 and 4,1 and 6), road 1 is connected semiconductor chilling plate S1 and semiconductor chilling plate S2 respectively with 2 the other end.Wherein the contact 3,6 also are connected with one+12V power supply, the main effect of this relay R J1 in the The whole control circuit is that the direction of current conversion is used, in addition, the other end of the normally opened contact 5 on 1 normally closed contact 4 and road 2 on the road, be connected with a big current low voltage N channel field-effect pipe Q2, in the The whole control circuit, play on-off action.
The utility model is applied to semiconductor chilling plate S1 and S2, the characteristics of this cooling piece are because electronics is directed mobile, in the certain electron hole of the inner generation of semiconductor, and the generation refrigeration, so when semiconductor refrigerating, the one side that will produce cold is cold, the form of one side heat, in conjunction with this form of its generation,, both can change the characteristic of its refrigerating/heating by changing direction of current through semiconductor chilling plate.
Use control circuit of the present utility model when work, and when main frame accessory power supply switch was not opened, from the switching signal of CPU output, N channel field-effect pipe Q2 controlled stage (switching signal) was a low voltage signal, not conducting of N channel field-effect pipe Q2, semiconductor chilling plate S1 and S2 all do not work.
When cooling and warming switch K1 is set to freeze, offer triode Q1 low voltage signal, then not conducting, 7, the 8 pin no currents of relay R J1 pass through, not adhesive of relay R J1, then normally closed contact 1,6 pin of relay R J1 is connected in the positive level of semiconductor chilling plate S1 and S2+the 12V voltage end, and another organizes normally closed contact 2,4 are connected in ground by N channel field-effect pipe Q2 with the negative level of semiconductor chilling plate S1 and S2, and then control circuit provides refrigeration.
When cooling and warming switch K1 is set to heat, offer triode Q1 high voltage signal, it is the 5V signal, then triode Q1 conducting, the pin 7 of the electromagnet of relay R J1,8 have electric current to pass through, relay R J1 adhesive, pin 1 and the pin 5 of relay R J1, pin 2 is communicated with simultaneously with pin 3, and have electric current to enter by the negative pole of semiconductor chilling plate S1 and S2 this moment, the positive pole of semiconductor chilling plate is connected in ground by N channel field-effect pipe Q2, at this moment, because direction of current changes, control circuit provides heating performance.
The utility model is converted to automatic switching current direction and on-off action under the state of heating in refrigeration, this design is applicable to that simultaneously any employing semiconductor refrigerating heats the household appliances of middle low power, its advantage is, circuit structure is simple and practical, stable and reliable for performance, simultaneously with low cost, in product, realize easily.
More than all embodiment only for the explanation the utility model usefulness, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.
Claims (3)
1. a cooling and warming control circuit is characterized in that, comprising:
One triode, the base stage of described triode links to each other with a cooling and warming switch by a resistance, the collector of described triode links to each other with first external power by a diode, the collector of described triode also is in series with the electromagnet of a relay, and the other end of described electromagnet also links to each other with first external power;
Power relay in one, comprise first, second loop, described first loop comprises first normally opened contact and first normally closed contact, described second loop comprises second normally opened contact and second normally closed contact, described first normally opened contact is connected second external power with second normally closed contact, described first normally closed contact links to each other with described second normally opened contact, and links to each other with the switching signal end by a field effect transistor; Described first loop also is connected first semiconductor chilling plate and second semiconductor chilling plate with second loop.
2. cooling and warming control circuit according to claim 1 is characterized in that,
Described field effect transistor is a big current low voltage N channel field-effect pipe.
3. cooling and warming control circuit according to claim 2 is characterized in that,
Described first, second external power is the direct supply of 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202603621U CN201754251U (en) | 2010-07-16 | 2010-07-16 | Cooling and heating control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202603621U CN201754251U (en) | 2010-07-16 | 2010-07-16 | Cooling and heating control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201754251U true CN201754251U (en) | 2011-03-02 |
Family
ID=43621983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202603621U Expired - Lifetime CN201754251U (en) | 2010-07-16 | 2010-07-16 | Cooling and heating control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201754251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739565A (en) * | 2016-02-22 | 2016-07-06 | 黄焕珠 | Constant temperature box capable of refrigerating and heating |
| CN106200706A (en) * | 2015-04-30 | 2016-12-07 | 佛山市顺德区美的电热电器制造有限公司 | The control device of semiconductor chilling plate |
-
2010
- 2010-07-16 CN CN2010202603621U patent/CN201754251U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200706A (en) * | 2015-04-30 | 2016-12-07 | 佛山市顺德区美的电热电器制造有限公司 | The control device of semiconductor chilling plate |
| CN105739565A (en) * | 2016-02-22 | 2016-07-06 | 黄焕珠 | Constant temperature box capable of refrigerating and heating |
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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: ZHU WENJUAN Free format text: FORMER OWNER: CHEN YONGJIANG Effective date: 20140410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201109 MINHANG, SHANGHAI TO: 200011 HUANGPU, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140410 Address after: 200011, room 2, building 370, Lane 704, China Road, Shanghai, Huangpu District Patentee after: Zhu Wenjuan Address before: 201109, No. 1525, Minhang District Road, Shanghai Patentee before: Chen Yongjiang |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI SHUIXING HOME TEXTILE CO., LTD. Free format text: FORMER OWNER: ZHU WENJUAN Effective date: 20140714 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yulu Inventor before: Chen Yongjiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200011 HUANGPU, SHANGHAI TO: 201401 FENGXIAN, SHANGHAI Free format text: CORRECT: INVENTOR; FROM: CHEN YONGJIANG TO: LI YULU |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140714 Address after: 201401, No. 1487, Shanghai Hangzhou highway, Shanghai, Fengxian District Patentee after: Shanghai Shuixing Home Textile Co., Ltd. Address before: 200011, room 2, building 370, Lane 704, China Road, Shanghai, Huangpu District Patentee before: Zhu Wenjuan |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110302 |
|
| CX01 | Expiry of patent term |