CN2461101Y - Refrigerater control circuit experimental instrument - Google Patents
Refrigerater control circuit experimental instrument Download PDFInfo
- Publication number
- CN2461101Y CN2461101Y CN 00259344 CN00259344U CN2461101Y CN 2461101 Y CN2461101 Y CN 2461101Y CN 00259344 CN00259344 CN 00259344 CN 00259344 U CN00259344 U CN 00259344U CN 2461101 Y CN2461101 Y CN 2461101Y
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- China
- Prior art keywords
- control circuit
- lamp
- relay
- compressor
- temperature controller
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- 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
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model relates to an experimental instrument for a control circuit of a refrigerater, which comprises a control circuit of a refrigerator and a control basal plate, wherein, the control circuit is formed form the connection of a starting relay, a refrigerating compressor, a protection relay, a temperature controller, a lamp, a switch, a starting capacitor, etc. via a circuit; the components are reasonably arranged on the control basal plate. The experimental instrument can be used for students to understand and control the electric working principle, the main parts, the structure, the use, the maintenance, etc. of the refrigerator. The utility model has the advantages of simple structure convenient operation, and low price.
Description
The utility model relates to a kind of teaching experimental equipment, is specially a kind of refrigerator control circuit experiment instrument.
At present, similar teaching experimental is to copy refrigerator reality, make with organic glass, be divided into refrigeration and electric two parts, experiment effect is good, still, this apparatus structure complexity, troublesome poeration, cost an arm and a leg, its price can't be born for general teaching applying unit up to more than 10,000 yuan of Renminbi, therefore promotes being restricted.
The purpose of this utility model is to design a kind of refrigerator control circuit experiment instrument simple in structure, easy to operate, low-cost.
The refrigerator control circuit experiment instrument of the utility model design is made of refrigerator control circuit and control basal plate.Wherein, refrigerator control circuit as shown in Figure 1, it by gravity type starting relay 1, refrigeration compressor 2, protective relay 3, temperature controller 4, lamp switch 5, attaching plug 6, lamp inside the box 7, start capacitor 8 and connect and compose through circuit.Wherein the working coil M of refrigeration compressor 2 end, actuating coil S hold an end of the coil that connects starting relay 1 respectively and an end of normally open contact.And the other end of the other end of the coil of starting relay 1 and normally open contact is connected with the two ends that start capacitor 8 respectively.The center tap C termination protective relay 3 of compressor 2, protective relay 3 connects temperature controller 4, and attaching plug 6 two-route wire connect temperature controller 4 respectively and start capacitor 8, constitute the starting control loop.In addition, lamp switch 5, lamp 7 are connected on the two-route wire of plug 6, constitute lighting loop.
The principle of work of above-mentioned refrigerator control circuit is as follows: after attaching plug 6 energisings; electric current is by starting capacitor 8; enter starting relay 1; be added on the compressor start coil S; simultaneously, other one road electric current is added on the working coil M of compressor 2 by the coil of starting relay 1; two road electric currents are got back to power supply by center tap C, protective relay 3, temperature controller 4.When working moment at the beginning because compressor 2 starting currents are big, so that the coil electricity on the starting relay 1, the normally opened contact closure on the starting relay 1.After several seconds, because compressor enters normal operating conditions, the power supply that acts on the actuating coil is reduced, the sucking coil of starting relay 1 loosens, and compressor for refrigeration enters normal operating conditions.Capacitor 8 is to start moment, owing to start the power supply increase and charge the assistance starting to electric capacity.Lamp inside the box 7 and switch 5 are illumination and the switch control that is used in the refrigerator, and the time and the door of refrigerator of switch lamp are synchronous.Promptly opening the door is that lamp is bright, and closing the door then, lamp goes out.
The components and parts of foregoing circuit all are arranged on the control basal plate 9, and its layout as shown in Figure 2.Wherein compressor 2 is arranged at the substrate upper left corner, and starting relay 1 is arranged at the compressor below.Protective relay 3, temperature controller 4, capacitor 8, lamp inside the box 7 and switch 5 are arranged at the middle part, and power supply and switch 6 thereof are arranged at the right side.
The purpose of this experiment is to make the student understand, grasp structure, principle, use and the maintenance of refrigerator electrical installation principle, main parts size.
Fig. 1 is this experiment instrument control circuit figure.
Fig. 2 is the arrangenent diagram of components and parts on control basal plate of this experiment instrument.
Number in the figure: 1 is starting relay, and 2 is refrigeration compressor, 3 protective relays, and 4 is temperature controller, and 5 is lamp switch, and 6 is attaching plug, and 7 is lamp inside the box, 8 for starting capacitor.
Embodiment: gravity type starting relay 1 adopts CSR type, 220V.Refrigeration compressor 2 adopts slip pipe slide block structure totally-enclosed compressor, 220V, 93W.Temperature controller 4 adopts WDF 20D type, 220V.Protective relay 3,220V.Switch 5:220V, bulb 7:220V, 15W.Substrate size 40 * 60cm.By shown in Figure 2 these components and parts are arranged on the control basal plate.Connect by circuit shown in Figure 1, promptly get this experiment instrument.
Claims (2)
1, a kind of refrigerator control circuit experiment instrument, constitute by refrigerator control circuit and control basal plate, it is characterized in that this control circuit is by gravity type starting relay (1), refrigeration compressor (2), protective relay (3), temperature controller (4), lamp switch (5), attaching plug (6), lamp inside the box (7) and startup capacitor (8) connect and compose through circuit, wherein, the working coil M end of refrigeration compressor (2), actuating coil 5 ends connect an end of starting relay (1) coil respectively and often open an end that melts head, the center tap C termination protective relay (3) of compressor (2), protective relay (3) connects temperature controller (4); The other end of the coil of starting relay (1) and the other end of contact are connected with startup capacitor (8) respectively; The two-way of attaching plug connects temperature controller (4) respectively and starts capacitor (8), constitutes the starting control loop; The two-route wire of lamp switch (5) and lamp (7) plug (6) constitutes lighting loop.
2, refrigerator control circuit experiment instrument according to claim 1 is characterized in that the components and parts of control circuit are arranged on the control basal plate, and wherein, compressor (2) is arranged at the substrate upper left corner, and starting relay (1) is arranged at compressor (2) below; Protective relay (3), lamp (7), temperature controller (4), switch (5) are arranged at the middle part, and power supply and switch (6) are arranged at the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00259344 CN2461101Y (en) | 2000-11-28 | 2000-11-28 | Refrigerater control circuit experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00259344 CN2461101Y (en) | 2000-11-28 | 2000-11-28 | Refrigerater control circuit experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2461101Y true CN2461101Y (en) | 2001-11-21 |
Family
ID=33615369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00259344 Expired - Fee Related CN2461101Y (en) | 2000-11-28 | 2000-11-28 | Refrigerater control circuit experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2461101Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299992A (en) * | 2015-11-26 | 2016-02-03 | 广东美的制冷设备有限公司 | Compressor control system, air conditioner and compressor control method |
-
2000
- 2000-11-28 CN CN 00259344 patent/CN2461101Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299992A (en) * | 2015-11-26 | 2016-02-03 | 广东美的制冷设备有限公司 | Compressor control system, air conditioner and compressor control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |