CN201448909U - LED indicating circuit matching with mechanical switch used for soot absorber - Google Patents
LED indicating circuit matching with mechanical switch used for soot absorber Download PDFInfo
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- CN201448909U CN201448909U CN200920046868XU CN200920046868U CN201448909U CN 201448909 U CN201448909 U CN 201448909U CN 200920046868X U CN200920046868X U CN 200920046868XU CN 200920046868 U CN200920046868 U CN 200920046868U CN 201448909 U CN201448909 U CN 201448909U
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- low speed
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- mutual inductor
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Abstract
The utility model discloses an LED indicating circuit matching with a mechanical switch used for a soot absorber. A primary coil of a high-speed mutual inductance coil is connected in series between a high-speed key and a high-speed input end of a motor coil, a primary coil of a low-speed mutual inductance coil is connected in series between a low-speed key and a low-speed input end of the motor coil, a primary coil of a lighting mutual inductance coil is connected in series between a lighting key and the other end of a lighting lamp, one end of the primary coil of the high-speed mutual inductance coil is connected in series with a high-speed indicating lamp, one end of the primary coil of the low-speed mutual inductance coil is connected in series with a low-speed indicating lamp, and one end of the primary coil of the lighting mutual inductance coil is connected in series with a lighting indicating lamp. When various mechanical keys are correspondingly communicated with the commercial power, the primary coils of the corresponding mutual inductance coils induce the voltage lower than the primary coils for the work of the corresponding indicating lamps, the purpose of displaying various functions of the soot absorber through the matching mechanical key operation of various indicating lamps is achieved, and the use is convenient. By adopting the mutual inductance coils, the high voltage is converted to the low voltage, and the LED lamp is prevented from being damaged when directly connected in a strong current circuit in series.
Description
Technical field
The utility model relates to used for range hood switch indicating circuit field, especially a kind of LED indicating circuit of used for range hood mechanical switch adapted.
Background technology
The button operation type of range hood is divided into mechanical type and electronic type at present, the principle of mechanical type button is: button is directly connected civil power and motor or civil power and illuminating lamp work, the mechanical type button has the advantage that control principle is simple, cost is low, but the Presentation Function that does not have cooperation uses inconvenient.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of LED indicating circuit of used for range hood mechanical switch adapted, but the operation of cooperative mechanical formula button and show the range hood function.
The utility model for the technical scheme that solves its technical problem and adopt is:
A kind of LED indicating circuit of used for range hood mechanical switch adapted, described range hood comprises the mechanical switch group, motor and illuminating lamp, described mechanical switch group comprises four mechanical type buttons: the high speed key, the low speed key, illumination key and closing key, described mechanical switch group is fixedly arranged on the guidance panel, the coil public output of described motor and an end of illuminating lamp are attempted by on the civil power zero line, the public input of all the mechanical type buttons in the described mechanical switch group all is attempted by on the civil power live wire, the logical civil power of high speed keyed jointing is to the high speed input of motor coil, the logical civil power of low speed keyed jointing is to the low speed input of motor coil, the logical civil power of illumination keyed jointing is to the illuminating lamp other end, described high speed key and the interlocking of low speed key, described closing key sky connects and the closure of described closing key can spur high speed key and the disconnection of low speed key simultaneously, described LED indicating circuit comprises the high speed mutual inductor, the low speed mutual inductor, the illumination mutual inductor, the high speed indicator lamp, the low speed indicator lamp, lighting pilot lamp, the high speed load resistance, the low speed load resistance, lighting load resistance and shared load resistance, the logical civil power of described high speed keyed jointing to the structure of the high speed input of motor coil is: the primary coil of described high speed mutual inductor is connected between the high speed input of high speed key and motor coil; The logical civil power of described low speed keyed jointing to the structure of the low speed input of motor coil is: the primary coil of described low speed mutual inductor is connected between the low speed input of low speed key and motor coil; The logical civil power of described illumination keyed jointing to the structure of the illuminating lamp other end is: the primary coil of described illumination mutual inductor is connected between the illumination key and the illuminating lamp other end;
Connect with secondary coil one end of described low speed mutual inductor behind the secondary coil one end series high-speed indicator lamp of described high speed mutual inductor and the high speed load resistance behind low speed indicator lamp and the low speed load circuit circuit and connect, the circuit of secondary coil one end of this high, low speed mutual inductor also connects back connection shared load resistance one end, and the secondary coil other end of described high speed mutual inductor is connected the shared load resistance other end with the secondary coil other end of low speed mutual inductor and after connecing; The secondary coil one end series lighting indicator lamp of described illumination mutual inductor is connected the other end and the ground connection of the secondary coil of the mutual inductor that throws light on the circuit behind the lighting load resistance, the circuit of secondary coil one end of this illumination mutual inductor is attempted by shared common load circuit one end.
As further improvement of the utility model, the circuit of secondary coil one end of described high, low speed mutual inductor and connect the back and shared load resistance one end between be connected with rest lamp.
As further improvement of the utility model, also be in series with first crystal diode in order to rectification on the circuit of secondary coil one end of described high speed mutual inductor; Also be in series with second crystal diode in order to rectification on the circuit of secondary coil one end of described low speed mutual inductor; Also be in series with the 3rd crystal diode in order to rectification on the circuit of secondary coil one end of described illumination mutual inductor.
As further improvement of the utility model, be provided with circuit control panel, described LED indicating circuit is integrated on the described circuit control panel.
As further improvement of the utility model, be benchmark with the service orientation of range hood, described circuit control panel is located at described guidance panel behind, and described circuit control panel is pressed the corresponding electrical connection of described LED indicating circuit with described guidance panel.
The original state of closing key is closed, because the closure of closing key can spur the high speed key simultaneously and the low speed key disconnects, the original state of high speed key and low speed key is for disconnecting; The original state of illumination key is for disconnecting.
During concrete enforcement: during starter work:
Disconnect closing key, the running of closed high speed key starter, this moment, civil power was connected the high speed input of motor coil through the primary coil of high speed mutual inductor, motor runs up, the secondary coil of high speed mutual inductor produces mutual induction electromotive force, mutual inductance electric current after the first crystal diode rectification, flow through high speed indicator lamp, rest lamp, high speed load resistance and shared load resistance, high speed indicator lamp and rest lamp are lighted, and the indication motor runs up;
Closed low speed key, because the high, low speed key is interlocking, the high speed key disconnects in the time of low speed key closure, the high speed indicator lamp is not luminous, this moment, civil power was connected the low speed input of motor coil through the primary coil of low speed mutual inductor, the motor low-speed running, the secondary coil of low speed mutual inductor produces mutual induction electromotive force, mutual inductance electric current after the second crystal diode rectification, flow through low speed indicator lamp, rest lamp, low speed load resistance and shared load resistance, the low speed indicator lamp is lighted, reset etc. still for by illuminating state, the indication motor has run up;
When closing motor operation, only need closed closing key to get final product.
When starting illuminating lamp work:
Closed illumination key, this moment, civil power was connected illuminating lamp through the primary coil of illumination mutual inductor, illuminating lamp is lighted, the secondary coil of illumination mutual inductor produces mutual induction electromotive force, mutual inductance electric current after the 3rd crystal diode rectification, flow through lighting pilot lamp and lighting load resistance, lighting pilot lamp is lighted, and the guidance lighting lamp is lighted.
When closing illuminating lamp, only need to disconnect the illumination key and get final product.
Use the principle of mutual inductor, when the corresponding connection of mechanical type button civil power, the secondary coil of corresponding mutual inductor induces the voltage lower than primary coil, after the crystal diode rectification of correspondence, offer the suitable operating current of corresponding indicator lamp (the mutual inductance electric current after the rectification), thereby reach the operation of each indicator lamp cooperative mechanical formula button and show the purpose of each function (motor runs up, the illumination of motor low-speed running and illuminating lamp) of range hood, easy to use.
The utility model adopts mutual inductor that high voltage is changed into low-voltage, has both avoided the LED lamp directly to be serially connected in the forceful electric power loop and has damaged easily, plays buffer action again, prevents that the back utmost point that the prime interference causes from damaging.
The beneficial effects of the utility model are: the principle of using mutual inductor, when the corresponding connection of mechanical type button civil power, the secondary coil of corresponding mutual inductor induces the voltage lower than primary coil, after the crystal diode rectification of correspondence, offer the suitable operating current of corresponding indicator lamp (the mutual inductance electric current after the rectification), thereby reach the operation of each indicator lamp cooperative mechanical formula button and show the purpose of each function (motor runs up, the illumination of motor low-speed running and illuminating lamp) of range hood, easy to use.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model;
Fig. 2 is the schematic diagram of guidance panel described in the utility model.
The specific embodiment
Embodiment: a kind of LED indicating circuit of used for range hood mechanical switch adapted, described range hood comprises the mechanical switch group, motor M and illuminating lamp LED, described mechanical switch group comprises four mechanical type buttons: high speed key K1, low speed key K2, illumination key K3 and closing key K4, described mechanical switch group is fixedly arranged on the guidance panel 10, the coil public output X of described motor M and the end of illuminating lamp LED are attempted by on the civil power zero line N, the public input of all the mechanical type buttons in the described mechanical switch group all is attempted by on the civil power live wire L, high speed key K1 connects the high speed input X1 of civil power to motor M coil, low speed key K2 connects the low speed input X2 of civil power to motor M coil, illumination key K3 connects civil power to the illuminating lamp LED other end, described high speed key K1 and low speed key K2 interlocking, described closing key K4 sky connects and the closure of described closing key K4 can spur high speed key K1 and low speed key K2 disconnection simultaneously, described LED indicating circuit comprises high speed mutual inductor 1, low speed mutual inductor 2, illumination mutual inductor 3, high speed indicator lamp LED1, low speed indicator lamp LED2, lighting pilot lamp LED3, high speed load resistance R1, low speed load resistance R2, lighting load resistance R 3 and shared load resistance R 4, described high speed key K1 connection civil power to the structure of the high speed input X1 of motor M coil is: the primary coil of described high speed mutual inductor 1 is connected between the high speed input X1 of high speed key K1 and motor M coil; Described low speed key K2 connection civil power to the structure of the low speed input X2 of motor M coil is: the primary coil of described low speed mutual inductor 2 is connected between the low speed input X2 of low speed key K2 and motor M coil; Described illumination key K3 connection civil power to the structure of the illuminating lamp LED other end is: the primary coil of described illumination mutual inductor 3 is connected between the illumination key K3 and the illuminating lamp LED other end;
Connect with secondary coil one end of described low speed mutual inductor 2 behind the secondary coil one end series high-speed indicator lamp LED1 of described high speed mutual inductor 1 and the high speed load resistance R1 behind low speed indicator lamp LED2 and the low speed load circuit R2 circuit and connect, the circuit of secondary coil one end of this high, low speed mutual inductor 1,2 also connects back connection shared load resistance R 4 one ends, and the secondary coil other end of described high speed mutual inductor 1 is connected shared load resistance R 4 other ends with the secondary coil other end of low speed mutual inductor 2 and after connecing; The secondary coil one end series lighting indicator lamp LED3 of described illumination mutual inductor 3 is connected the other end and the ground connection of the secondary coil of the mutual inductor 3 that throws light on the circuit after the lighting load resistance R 3, the circuit of secondary coil one end of this illumination mutual inductor 3 is attempted by shared common load circuit R4 one end.
As further improvement of the utility model, the circuit of secondary coil one end of described high, low speed mutual inductor 1,2 and connect the back and shared load resistance R4 one end between be connected with rest lamp LED4.
As further improvement of the utility model, also be in series with the first crystal diode D1 in order to rectification on the circuit of secondary coil one end of described high speed mutual inductor 1; Also be in series with the second crystal diode D2 in order to rectification on the circuit of secondary coil one end of described low speed mutual inductor 2; Also be in series with the 3rd crystal diode D3 in order to rectification on the circuit of secondary coil one end of described illumination mutual inductor 3.
As further improvement of the utility model, be provided with circuit control panel 20, described LED indicating circuit is integrated on the described circuit control panel 20.
As further improvement of the utility model, be benchmark with the service orientation of range hood, described circuit control panel 20 is located at described guidance panel 10 behind, and described circuit control panel 20 is pressed the corresponding electrical connection of described LED indicating circuit with described guidance panel 10.
The original state of closing key is closed, because the closure of closing key K4 can spur high speed key K1 simultaneously and low speed key K2 disconnects, the original state of high speed key K1 and low speed key K2 is for disconnecting; The original state of illumination key K3 is for disconnecting.
During concrete enforcement: during starter work:
Disconnect closing key K4, closed high speed key K1 starter M running, this moment, civil power was connected the high speed input X1 of motor M coil through the primary coil of high speed mutual inductor 1, motor runs up, the secondary coil of high speed mutual inductor 1 produces mutual induction electromotive force, mutual inductance electric current after the first crystal diode D1 rectification, flow through high speed indicator lamp LED1, rest lamp LED4, high speed load resistance R1 and shared load resistance R 4, high speed indicator lamp LED1 and rest lamp LED4 are lighted, and indication motor M runs up;
Closed low speed key K2, because it is high, low speed key K1, K2 is interlocking, high speed key K1 disconnects in the time of low speed key K2 closure, the high speed indicator lamp is not luminous, this moment, civil power was connected the low speed input X2 of motor M coil through the primary coil of low speed mutual inductor 2, the motor low-speed running, the secondary coil of low speed mutual inductor 2 produces mutual induction electromotive force, the mutual inductance electric current low speed indicator lamp LED2 that after the second crystal diode D2 rectification, flows through, rest lamp LED4, low speed load resistance R2 and shared load resistance R 4, low speed indicator lamp LED2 is lighted, LED4 such as reset still for by illuminating state, indication motor M has run up;
When closing motor operation, only need closed closing key K4 to get final product.
When starting illuminating lamp work:
Closed illumination key K3, this moment, civil power was connected illuminating lamp through the primary coil of illumination mutual inductor 3, illuminating lamp is lighted, the secondary coil of illumination mutual inductor 3 produces mutual induction electromotive force, mutual inductance electric current after the 3rd crystal diode D3 rectification, flow through lighting pilot lamp LED3 and lighting load resistance R 3, lighting pilot lamp is lighted, and the guidance lighting lamp is lighted.
When closing illuminating lamp, only need to disconnect illumination key K3 and get final product.
Use the principle of mutual inductor, when the corresponding connection of mechanical type button civil power, the secondary coil of corresponding mutual inductor induces the voltage lower than primary coil, after the crystal diode rectification of correspondence, offer the suitable operating current of corresponding indicator lamp (the mutual inductance electric current after the rectification), thereby reach the operation of each indicator lamp cooperative mechanical formula button and show the purpose of each function (motor runs up, the illumination of motor low-speed running and illuminating lamp) of range hood, easy to use.
The utility model adopts mutual inductor that high voltage is changed into low-voltage, has both avoided the LED lamp directly to be serially connected in the forceful electric power loop and has damaged easily, plays buffer action again, prevents that the back utmost point that the prime interference causes from damaging.
Claims (5)
1. the LED indicating circuit of a used for range hood mechanical switch adapted, described range hood comprises the mechanical switch group, motor (M) and illuminating lamp (LED), described mechanical switch group comprises four mechanical type buttons: high speed key (K1), low speed key (K2), illumination key (K3) and closing key (K4), described mechanical switch group is fixedly arranged on the guidance panel (10), the coil public output (X) of described motor (M) and an end of illuminating lamp (LED) are attempted by on the civil power zero line (N), the public input of all the mechanical type buttons in the described mechanical switch group all is attempted by on the civil power live wire (L), high speed key (K1) is connected the high speed input (X1) of civil power to motor (M) coil, low speed key (K2) is connected the low speed input (X2) of civil power to motor (M) coil, illumination key (K3) is connected civil power to illuminating lamp (LED) other end, described high speed key (K1) and low speed key (K2) interlocking, described closing key (K4) sky connects and the closure of described closing key (K4) can spur high speed key (K1) and low speed key (K2) disconnection simultaneously, it is characterized in that: described LED indicating circuit comprises high speed mutual inductor (1), low speed mutual inductor (2), illumination mutual inductor (3), high speed indicator lamp (LED1), low speed indicator lamp (LED2), lighting pilot lamp (LED3), high speed load resistance (R1), low speed load resistance (R2), lighting load resistance (R3) and shared load resistance (R4), described high speed key (K1) connection civil power to the structure of the high speed input (X1) of motor (M) coil is: the primary coil of described high speed mutual inductor (1) is connected between the high speed input (X1) of high speed key (K1) and motor (M) coil; Described low speed key (K2) connection civil power to the structure of the low speed input (X2) of motor (M) coil is: the primary coil of described low speed mutual inductor (2) is connected between the low speed input (X2) of low speed key (K2) and motor (M) coil; Described illumination key (K3) connection civil power to the structure of illuminating lamp (LED) other end is: the primary coil of described illumination mutual inductor (3) is connected between the illumination key (K3) and illuminating lamp (LED) other end;
Circuit behind the secondary coil one end series high-speed indicator lamp (LED1) of described high speed mutual inductor (1) and high speed load resistance (R1) back connect with secondary coil one end of described low speed mutual inductor (2) low speed indicator lamp (LED2) and the low speed load circuit (R2) also connects, the circuit of secondary coil one end of this high, low speed mutual inductor (1,2) also connects the back and connects shared load resistance (R4) end, the secondary coil other end of the secondary coil other end of described high speed mutual inductor (1) and low speed mutual inductor (2) and connect after be connected shared load resistance (R4) other end; The secondary coil one end series lighting indicator lamp (LED3) of described illumination mutual inductor (3) is connected the other end and the ground connection of the secondary coil of illumination mutual inductor (3) with the circuit behind the lighting load resistance (R3), the circuit of secondary coil one end of this illumination mutual inductor (3) is attempted by shared common load circuit (R4) end.
2. the LED indicating circuit of used for range hood mechanical switch adapted according to claim 1 is characterized in that: the circuit of secondary coil one end of described high, low speed mutual inductor (1,2) and connect the back and shared load resistance (R4) end between be connected with rest lamp (LED4).
3. the LED indicating circuit of used for range hood mechanical switch adapted according to claim 1 is characterized in that: also be in series with first crystal diode (D1) on the circuit of secondary coil one end of described high speed mutual inductor (1); Also be in series with second crystal diode (D2) on the circuit of secondary coil one end of described low speed mutual inductor (2); Also be in series with the 3rd crystal diode (D3) on the circuit of secondary coil one end of described illumination mutual inductor (3).
4. according to the LED indicating circuit of claim 1,2 or 3 described used for range hood mechanical switch adapteds, it is characterized in that: be provided with circuit control panel (20), described LED indicating circuit is integrated on the described circuit control panel (20).
5. the LED indicating circuit of used for range hood mechanical switch adapted according to claim 4, it is characterized in that: the service orientation with range hood is a benchmark, described circuit control panel (20) is located at described guidance panel (10) behind, and described circuit control panel (20) is pressed the corresponding electrical connection of described LED indicating circuit with described guidance panel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920046868XU CN201448909U (en) | 2009-06-30 | 2009-06-30 | LED indicating circuit matching with mechanical switch used for soot absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920046868XU CN201448909U (en) | 2009-06-30 | 2009-06-30 | LED indicating circuit matching with mechanical switch used for soot absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448909U true CN201448909U (en) | 2010-05-05 |
Family
ID=42553630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920046868XU Expired - Lifetime CN201448909U (en) | 2009-06-30 | 2009-06-30 | LED indicating circuit matching with mechanical switch used for soot absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936562A (en) * | 2009-06-30 | 2011-01-05 | 樱花卫厨（中国）股份有限公司 | LED indicating circuit used together with mechanical switch for range hood |
| CN105556628A (en) * | 2013-06-21 | 2016-05-04 | Wago管理有限责任公司 | Monitoring circuit for detecting a switching state of an electrical switching contact and method therefor |
-
2009
- 2009-06-30 CN CN200920046868XU patent/CN201448909U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936562A (en) * | 2009-06-30 | 2011-01-05 | 樱花卫厨（中国）股份有限公司 | LED indicating circuit used together with mechanical switch for range hood |
| CN101936562B (en) * | 2009-06-30 | 2013-07-31 | 樱花卫厨（中国）股份有限公司 | LED indicating circuit used together with mechanical switch for range hood |
| CN105556628A (en) * | 2013-06-21 | 2016-05-04 | Wago管理有限责任公司 | Monitoring circuit for detecting a switching state of an electrical switching contact and method therefor |
| US9989594B2 (en) | 2013-06-21 | 2018-06-05 | Wago Verwaltungesellschaft Mbh | Monitoring circuit for detecting a switching state of an electrical switching contact and method therefor |
| CN105556628B (en) * | 2013-06-21 | 2019-05-28 | Wago管理有限责任公司 | The monitoring circuit of the switch state of electrical switch contact and method thus for identification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100505 Effective date of abandoning: 20090630 |
|
| RGAV | Abandon patent right to avoid regrant |