CN204165240U - Air-heater heating resistance wire delay closing circuit system - Google Patents
Air-heater heating resistance wire delay closing circuit system Download PDFInfo
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- CN204165240U CN204165240U CN201420554977.3U CN201420554977U CN204165240U CN 204165240 U CN204165240 U CN 204165240U CN 201420554977 U CN201420554977 U CN 201420554977U CN 204165240 U CN204165240 U CN 204165240U
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- heating resistor
- resistance wire
- delay closing
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Abstract
The utility model discloses air-heater heating resistance wire delay closing circuit system, comprise the heating resistor R1 that a resistance is less than or equal to 20K ohm, be connected with power supply U1 after the input tandem tap J1 of heating resistor R1, also comprise a dynamic circuit connector type relay K 1, the coil two ends of dynamic circuit connector type relay K 1 are contact 1 respectively, contact 2, the armature two ends of dynamic circuit connector type relay K 1 are contact 3 and contact 4 respectively, wherein, contact 1 is connected to the output of heating resistor R1, ground connection after the tandem tap J1 of contact 2, contact 3 meets power supply U1, connect ground connection after hot blast motor S1 in contact 4, the output of heating resistor R1 is also in series with ground connection after electric capacity C4.Be a kind of simple, safety, effectively, the air-heater heating resistance wire delay closing circuit system of low cost.
Description
Technical field
The utility model relates to motor delay technique, specifically air-heater heating resistance wire delay closing circuit system.
Background technology
Delay technique, the technology of comparative maturity in the prior art, existing time delay has a variety of, has the delay circuit that triode is combined to form, and also has 555 time base circuits, these circuit are all not suitable for the work delay circuit of direct current generator or DC coil, the actuating coil rated voltage of the direct current generator of general low-voltage is DC12V or 15V, D.C. resistance about 2 Ω, and operating current is larger, if power supply is for a long time to coil power supply, just likely burn out power supply or coil.
In air-heater, such as Household hot blower fan, factory's plastic packaging heat gun, air-heater after washing one's hands, do not possess the function of delay switching-off, the operation of people to air-heater is: power-on switch, the now blower motor of air-heater, heating resistor all works, this just can blow out hot blast, during closedown, direct closedown blower motor, so at this moment, because heating resistor also exists a large amount of heats, can not discharge, therefore air-heater can be damaged, normal operation first opens blower motor, then heating resistor is opened, after using a period of time, first close heating resistor, now blower fan is also in work, at this moment, the motor of manual-lock blower fan, the heat that heating resistor produces can be discharged like this, but there are at least 2 buttons in this air-heater, a button control heating resistor, another button control blower motor, control twice is needed when people operate, do not meet the operating habit of people, general people still ignore the safety of equipment, operating process still closes blower motor and heating resistor simultaneously.
Utility model content
The purpose of this utility model be to provide a kind of simple, safety, effectively, the air-heater heating resistance wire delay closing circuit system of low cost.
The purpose of this utility model is achieved through the following technical solutions: air-heater heating resistance wire delay closing circuit system, comprise the heating resistor R1 that a resistance is less than or equal to 20K ohm, be connected with power supply U1 after the input tandem tap J1 of heating resistor R1, also comprise a dynamic circuit connector type relay K 1, the coil two ends of dynamic circuit connector type relay K 1 are contact 1 respectively, contact 2, the armature two ends of dynamic circuit connector type relay K 1 are contact 3 and contact 4 respectively, wherein, contact 1 is connected to the output of heating resistor R1, ground connection after the tandem tap J1 of contact 2, contact 3 meets power supply U1, connect ground connection after hot blast motor S1 in contact 4, the output of heating resistor R1 is also in series with ground connection after electric capacity C4.
Principle of the present utility model is: whether switch J1 controls heating resistor R1 and work, and switch J1 closes, then heating resistor R1 heating is started working, and switch J1 disconnects, then heating resistor R1 heating quits work.Hot blast motor S1 is the air-blower control parts of air-heater, and during its work, blower fan rotates.When blower fan normally works, switch J2, switch J1 closes, now electric current is to heating resistor R1, heating resistor R1 starts working, the now coil two ends conduction of dynamic circuit connector type relay K 1, the armature of dynamic circuit connector type relay K 1 closes, hot blast motor S1 starts working, electric capacity C4 starts charging simultaneously, after when one section, electric capacity C4 is in charging complete state, when needing to close air-heater, now switch J1 is in closure state, as long as switch J2 does not close, then the armature of dynamic circuit connector type relay K 1 closes all the time, hot blast motor S1 works all the time, at this moment, when we close air-heater, direct cut-off switch J2, then electric capacity C4 starts electric discharge, electric current is through the coil of dynamic circuit connector type relay K 1, it is closed that such dynamic circuit connector type relay K 1 can allow armature continue, hot blast motor S1 is also in running order, heat in blower fan is discharged, after a period of time, after the discharge capacity of electric capacity C4 weakens, it is closed that the electric current that electric capacity C4 discharges can not make armature continue, now, armature disconnects, hot blast motor S1 power-off does not work.So just can first close heating resistor R1 by a switch control rule, then close hot blast motor S1, reach and allow the object of hot blast motor S1 time-delay closing, ensure the safety of air-heater.
Switch J1 can be normally closed, its major function coordinates switch J2 to carry out discharge and recharge to electric capacity C4, control dynamic circuit connector type relay K 1 simultaneously, namely under the closed adjustment of switch J2, cut-offfing of switch J1 is same as control dynamic circuit connector type relay K 1, thus whether control hot blast motor S1 works, generally, situation switch J1 is normally closed, and switch J2 controls hot blast motor S1 and carries out time-delay closing control.
When power supply U1 is the dc source formed after Transformer Rectifier by civil power, then the input of switch J1 is also connected with the electric capacity C3 of ground connection.Electric capacity C3 plays the object of protection circuit.
The input of heating resistor R1 is also connected with Light-Emitting Diode LED1, the resistance R2 of series connection, resistance R2 ground connection.Light-Emitting Diode LED1, resistance R2 are as working indicating.
The dc source that power supply U1 is dc source or is formed after Transformer Rectifier by civil power.
Preferably, the voltage of heating resistor R1 input is 15V or more than 15V.
Preferably, the capacitance of electric capacity C3 is more than or equal to 3.3mF.
The utility model has the advantage of: structure is simple, and cost is low, simple and quick, can realize air-heater time-delay closing fast, easily with Single switch.
Accompanying drawing explanation
Fig. 1 is after switch J2 disconnects one end time, dynamic circuit connector type relay K 1 armature time delay a period of time after the schematic diagram that automatically disconnects.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1.
Air-heater heating resistance wire delay closing circuit system, comprise the heating resistor R1 that a resistance is less than or equal to 20K ohm, be connected with power supply U1 after the input tandem tap J1 of heating resistor R1, also comprise a dynamic circuit connector type relay K 1, the coil two ends of dynamic circuit connector type relay K 1 are contact 1 respectively, contact 2, the armature two ends of dynamic circuit connector type relay K 1 are contact 3 and contact 4 respectively, wherein, contact 1 is connected to the output of heating resistor R1, ground connection after the tandem tap J1 of contact 2, contact 3 meets power supply U1, connect ground connection after hot blast motor S1 in contact 4, the output of heating resistor R1 is also in series with ground connection after electric capacity C4.
Principle of the present utility model is: whether switch J1 controls heating resistor R1 and work, and switch J1 closes, then heating resistor R1 heating is started working, and switch J1 disconnects, then heating resistor R1 heating quits work.Hot blast motor S1 is the air-blower control parts of air-heater, and during its work, blower fan rotates.When blower fan normally works, switch J2, switch J1 close, now electric current is to heating resistor R1, heating resistor R1 starts working, the now coil two ends conduction of dynamic circuit connector type relay K 1, the armature of dynamic circuit connector type relay K 1 closes, hot blast motor S1 starts working, and electric capacity C4 starts charging simultaneously, after when one section, electric capacity C4 is in charging complete state, when needing to close air-heater, now switch J1 is in closure state, as long as switch J2 does not close, then the armature of dynamic circuit connector type relay K 1 closes all the time, and hot blast motor S1 works all the time.
As Fig. 1, at this moment, when we close air-heater, direct cut-off switch J2, then electric capacity C4 starts electric discharge, electric current is through the coil of dynamic circuit connector type relay K 1, and it is closed that such dynamic circuit connector type relay K 1 can allow armature continue, and hot blast motor S1 is also in running order, heat in blower fan is discharged, after a period of time, after the discharge capacity of electric capacity C4 weakens, when the cathode voltage of electric capacity is 45.6mV, it is closed that the electric current that electric capacity C4 discharges can not make armature continue, now, armature disconnects, and hot blast motor S1 power-off does not work.So just can first close heating resistor R1 with a switch, then close hot blast motor S1, reach and allow the object of hot blast motor S1 time-delay closing, ensure the safety of air-heater.
Switch J1 can be normally closed, its major function coordinates switch J2 to carry out discharge and recharge to electric capacity C4, control dynamic circuit connector type relay K 1 simultaneously, namely under the closed adjustment of switch J2, cut-offfing of switch J1 is same as control dynamic circuit connector type relay K 1, thus whether control hot blast motor S1 works, generally, situation switch J1 is normally closed, and switch J2 controls hot blast motor S1 and carries out time-delay closing control.
When power supply U1 is the dc source formed after Transformer Rectifier by civil power, then the input of switch J1 is also connected with the electric capacity C3 of ground connection.Electric capacity C3 plays the object of protection circuit.
The input of heating resistor R1 is also connected with Light-Emitting Diode LED1, the resistance R2 of series connection, resistance R2 ground connection.Light-Emitting Diode LED1, resistance R2 are as working indicating.
The dc source that power supply U1 is dc source or is formed after Transformer Rectifier by civil power.
Preferably, the voltage of heating resistor R1 input is 15V or more than 15V.
Preferably, the capacitance of electric capacity C3 is more than or equal to 3.3mF.
As mentioned above, then well the utility model can be realized.
Claims (6)
1. air-heater heating resistance wire delay closing circuit system, it is characterized in that: comprise the heating resistor R1 that a resistance is less than or equal to 20K ohm, be connected with power supply U1 after the input tandem tap J1 of heating resistor R1, also comprise a dynamic circuit connector type relay K 1, the coil two ends of dynamic circuit connector type relay K 1 are contact 1 respectively, contact 2, the armature two ends of dynamic circuit connector type relay K 1 are contact 3 and contact 4 respectively, wherein, contact 1 is connected to the output of heating resistor R1, ground connection after the tandem tap J1 of contact 2, contact 3 meets power supply U1, connect ground connection after hot blast motor S1 in contact 4, the output of heating resistor R1 is also in series with ground connection after electric capacity C4.
2. air-heater heating resistance wire delay closing circuit system according to claim 1, is characterized in that: the input of switch J1 is also connected with the electric capacity C3 of ground connection.
3. air-heater heating resistance wire delay closing circuit system according to claim 1, is characterized in that: the input of heating resistor R1 is also connected with the Light-Emitting Diode LED1 of series connection, resistance R2, resistance R2 ground connection.
4. air-heater heating resistance wire delay closing circuit system according to claim 1, is characterized in that: the dc source that power supply U1 is dc source or is formed after Transformer Rectifier by civil power.
5. air-heater heating resistance wire delay closing circuit system according to claim 1, is characterized in that: the voltage of heating resistor R1 input is 15V or more than 15V.
6. air-heater heating resistance wire delay closing circuit system according to claim 1, is characterized in that: the capacitance of electric capacity C3 is more than or equal to 3.3mF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420554977.3U CN204165240U (en) | 2014-09-25 | 2014-09-25 | Air-heater heating resistance wire delay closing circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420554977.3U CN204165240U (en) | 2014-09-25 | 2014-09-25 | Air-heater heating resistance wire delay closing circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204165240U true CN204165240U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420554977.3U Expired - Fee Related CN204165240U (en) | 2014-09-25 | 2014-09-25 | Air-heater heating resistance wire delay closing circuit system |
Country Status (1)
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| CN (1) | CN204165240U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266364A (en) * | 2014-09-25 | 2015-01-07 | 成都锐奕信息技术有限公司 | Delay closing device of heating resistance wire of hot-air blower |
| CN105828461A (en) * | 2016-05-16 | 2016-08-03 | 苏州经贸职业技术学院 | Shutdown-delay and cooling control circuit for electric heating equipment and cooling protection method |
| CN110701762A (en) * | 2019-11-18 | 2020-01-17 | 广东美的暖通设备有限公司 | Over-temperature protection circuit of air conditioner, air conditioner and over-temperature protection method of air conditioner |
-
2014
- 2014-09-25 CN CN201420554977.3U patent/CN204165240U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266364A (en) * | 2014-09-25 | 2015-01-07 | 成都锐奕信息技术有限公司 | Delay closing device of heating resistance wire of hot-air blower |
| CN105828461A (en) * | 2016-05-16 | 2016-08-03 | 苏州经贸职业技术学院 | Shutdown-delay and cooling control circuit for electric heating equipment and cooling protection method |
| CN105828461B (en) * | 2016-05-16 | 2022-04-26 | 苏州经贸职业技术学院 | Shutdown delay cooling control circuit and cooling protection method for electric heating equipment |
| CN110701762A (en) * | 2019-11-18 | 2020-01-17 | 广东美的暖通设备有限公司 | Over-temperature protection circuit of air conditioner, air conditioner and over-temperature protection method of air conditioner |
| CN110701762B (en) * | 2019-11-18 | 2021-05-28 | 广东美的暖通设备有限公司 | Over-temperature protection circuit of air conditioner, air conditioner and over-temperature protection method of air conditioner |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20150925 |
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| EXPY | Termination of patent right or utility model |