CN2470864Y - Temp.-controlled relay - Google Patents
Temp.-controlled relay Download PDFInfo
- Publication number
- CN2470864Y CN2470864Y CN 00264077 CN00264077U CN2470864Y CN 2470864 Y CN2470864 Y CN 2470864Y CN 00264077 CN00264077 CN 00264077 CN 00264077 U CN00264077 U CN 00264077U CN 2470864 Y CN2470864 Y CN 2470864Y
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- CN
- China
- Prior art keywords
- circuit
- utility
- model
- load
- control
- 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
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Abstract
The utility model relates to a relay which controls heating or cooling, and which is composed of a power circuit, a control circuit, an alarm circuit and a probe conversion circuit. By turning on a triode transistor, then turning on an optic electronic coupler and a thyristor , the load can work and the temperature can be controlled through an electric contact thermometer, namely that is the on and off of the load. The utility model has the advantages of novel design, simple structure, convenient operation, reliable and safe control. The utility model is not easy to have failure and has a quick turning on, a high sensitivity, a wide applicable voltage range and a long service life; the utility model can be widely used in chemical, textile, pharmaceutical, scientific research, hospital, bacterial culture, seed cultivation, poultry incubating, and medicine storage industries.
Description
The utility model relates to a kind of relay of controlling heating or refrigeration.
Need heat or freeze in industries such as rubber, chemical industry, plastics, bakelite, weaving, pharmacy, scientific research, hotel, hospital, food processing, bacterium cultivation, cultivating seeds, poultry hatchings and reach constant temperature.The general structure of present employed thermostat relay is more complicated all, and price is also higher, and is fragile, the not easy-maintaining that breaks down not only, and cause damage to the user easily.
The purpose of this utility model provides thermostat relay a kind of simple in structure, safe in utilization, and is fragile to overcome prior art price height, deficiencies such as maintenance difficult.
The utility model is by a transformation current rectifying and wave filtering circuit 1, control circuit 2, warning circuit 3, probe change-over circuit 4 is formed, the 220V alternating current is the 12V direct current after the transformation rectification, for warning circuit 3 and probe change-over circuit 4 provide operating voltage, and the triode V in the while control circuit 2
GConducting makes photoelectrical coupler B then
GWork, conducting bidirectional triode thyristor V
M, drive load operation, describe formation of the present utility model in detail below in conjunction with accompanying drawing.
The utility model is a box structure, and power light, relay indicating light, control heat, control cold switch all are placed on above the box body.The utility model mainly is made up of power circuit 1, control circuit 2, warning circuit 3, probe change-over circuit 4.Power circuit 1 can adopt bridge rectifier circuit; Control circuit (2) comprises triode V
GWith photoelectrical coupler B
G, triode V
GBase stage connect probe change-over circuit 4, collector connects positive source, emission collection meets photoelectrical coupler B
GElectric contact thermometer WLK is positioned in the load 5, and through lead and probe switch SA
2(control and connect a point when hot, control cold butt joint b point) links to each other; Controllable silicon V
MOne termination alternating current, a termination load 5, the control utmost point meets photoelectrical coupler B
GFor preventing to cause the thermostat overtemperature because of accident or outer temperature influence, change-over circuit is corresponding also is provided with one by light emitting diode V with probe
L1With the warning circuit 3 that hummer H forms, warning circuit 3 one termination powers, the other end meets electric contact thermometer WLK through lead.When if load 5 is perception or capacitive load, need at controllable silicon V
MLast in parallel one by resistance R
6And capacitor C
2The absorption circuit of forming.
Principle of work of the present utility model is: 1. when control is hot, SA
2The probe switch is bonded to the control thermal site, i.e. a point, power turn-on switch S A
1, connect transformer B step-down, bridge rectifier circuit V via fuse FU
1Rectification, capacitor C
1Triode V is connected in filtering
GWith light emitting diode V
L1, hummer H; Positive electricity is through resistance R
1, switch S A
2Connect triode V
GBase stage, triode V
GConducting, photoelectrical coupler B
GStarting, controllable silicon V
MConnect load, relay indicating light D
LLuminous, oven heated, temperature rises.When being raised to predetermined temperature, electric contact thermometer WLK junction closure, both positive and negative polarity is connected, triode V
GLow level appears, V
GBy photoelectrical coupler B
G, controllable silicon V
MOutage, load quits work, power light D
HLuminous.When temperature dropped to predetermined value, electric contact thermometer WLK contact disconnected, and resets after the power failure, and reciprocation cycle reaches thermostatic control.When making thermostat surpass predetermined value as the influence because of accident or outer temperature, warning circuit sends sound and light alarm.
2, control when cold, SA
2The probe switch is to controlling cold position, i.e. b point, power turn-on switch S A
1, connect transformer B step-down, bridge rectifier circuit V via fuse FU
1Rectification, capacitor C
1Triode V is connected in filtering
G, positive electricity is through resistance R
1, switch S A
2The thermometer WLK that makes contact, at this moment because outer temperature is high, the WLK junction closure is connected triode V
GBase stage, triode V
GConducting, photoelectrical coupler B
GStarting, controllable silicon V
MConducting is also connected load, relay indicating light D
LLuminous; After the connection load was refrigeration plant, when thermostat temperature dropped to predetermined value, the contact of electric contact thermometer disconnected, triode V
GEnd photoelectrical coupler B
G, controllable silicon V
MAnd load has a power failure power light D
HLuminous.When temperature rose to predetermined value, electric contact thermometer WLK junction closure started again after the power failure, toward anti-circulation, reached thermostatic control.
The utility model has the advantages that: modern design, simple in structure, contactless, conducting is fast, highly sensitive, the voltage adaptation amplitude broad, be the several times of like product serviceable life, can be used for controlling heat and the cold different operating of control, and operation control is simple, dependable performance, failure rate is low, even break down, also is easy to maintenance, can not bring loss to the user, range of application is very extensive.
Description of drawings:
Accompanying drawing is electrical schematic diagram 1. power circuits 2. control circuits 3. warning circuits 4. probe change-over circuits of the present utility model 5. loads
Claims (3)
1, a kind of thermostat relay, it is made up of power circuit (1), control circuit (2), probe change-over circuit (4), and it is characterized in that: control circuit (2) comprises triode V
GWith photoelectrical coupler B
G, triode V
GBase stage connect probe change-over circuit (4), collector connects positive source, emission collection meets photoelectrical coupler B
GElectric contact thermometer WLK is positioned in the load (5), and through lead and probe switch SA
2Link to each other; Controllable silicon V
MOne termination alternating current, a termination load (5), the control utmost point meets photoelectrical coupler B
G
2, thermostat relay according to claim 1 is characterized in that: with the corresponding warning circuit (3) that is provided with of probe change-over circuit, the light emitting diode V in the warning circuit (3)
L1With hummer H one termination power, the other end meets electric contact thermometer WLK through lead.
3, thermostat relay according to claim 1 and 2 is characterized in that: at controllable silicon V
MLast in parallel one by resistance R
6And capacitor C
2The absorption circuit of forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00264077 CN2470864Y (en) | 2000-12-23 | 2000-12-23 | Temp.-controlled relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00264077 CN2470864Y (en) | 2000-12-23 | 2000-12-23 | Temp.-controlled relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2470864Y true CN2470864Y (en) | 2002-01-09 |
Family
ID=33618881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00264077 Expired - Fee Related CN2470864Y (en) | 2000-12-23 | 2000-12-23 | Temp.-controlled relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2470864Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034268A (en) * | 2012-11-30 | 2013-04-10 | 河南省电力公司驻马店供电公司 | Control room environment intelligent management device of unattended transformer substation |
-
2000
- 2000-12-23 CN CN 00264077 patent/CN2470864Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034268A (en) * | 2012-11-30 | 2013-04-10 | 河南省电力公司驻马店供电公司 | Control room environment intelligent management device of unattended transformer substation |
| CN103034268B (en) * | 2012-11-30 | 2015-09-23 | 河南省电力公司驻马店供电公司 | Unattended substation pulpit ambient intelligence management devices |
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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 |