CN101291555A - Light with dimmer - Google Patents

Abstract

A light or light kit ( 10 ) is disclosed which includes a switch housing ( 11 ), a plurality of light sockets ( 12 ), and a pull chain type switch ( 13 ) which includes a pull chain or cord ( 13 '). A light bulb ( 15 ) is mounted within each light socket. The light kit also includes a controller or dimmer module ( 17 ) electrically coupled between the pull chain switch and the light socket. The dimmer module may gradually change the light intensity with the actuation of the pull chain switch through the continual pulling of the pull chain.

Description

Lamp with dimmer

The cross reference of related application

The application's case is advocated the rights and interests of the 60/875th, No. 324 U.S. Provisional Patent Application case of application on December 16th, 2006.

Technical field

The present invention relates to lamp and dimmer, and relate in particular to and have the dimmer that the tractive chain impels the lamp of lamp dimming.

Background technology

Light fixture exists for many years.Some light fixtures are coupled to ceiling fan, are called as the ceiling fan light fixture sometimes.Many these lamps and light fixture all have the connection/stopcock that is activated by stay cord or chain, and term rope, chain, line or similar structures can be used as chain jointly at this paper.Tractive motion on the tractive chain changes makes lamp switch change scram position into from on-position, or vice versa.Thus, lamp is lighted fully or is turn-offed.

Need a kind ofly to have some illumination intensities but the also lamp of manually actuable.Therefore, the present invention is primarily aimed in this type of lamp is provided.

Summary of the invention

The present invention relates to a kind of lamp, it comprises: shell; At least one lamp socket, it is coupled to described shell; Dimmer, it is coupled to described lamp socket, described dimmer circuit comprises the tractive chain, is coupled to the tractive chain switch of described tractive chain, with be coupled to described tractive chain switch and be installed in light adjusting circuit in the described shell, whereby, the actuating of described tractive chain impels the described light adjusting circuit of described tractive chain actuation of the switch, to reduce the power that arrives described lamp socket.

The invention further relates to a kind of lamp, it comprises: shell; At least one lamp socket, it is coupled to described shell; Bulb, it is coupled to described at least one lamp socket; Tractive chain switch; The tractive chain, it is coupled to described tractive chain switch; Control member, it is coupled to described tractive chain switch, and to be used to control the illumination intensity of described bulb, described control member incrementally changes the illumination intensity of described bulb by the lasting actuating of described tractive chain switch.

Description of drawings

Fig. 1 comprises the end view of ceiling fan of implementing the lamp of principle of the present invention with preferred form.

Fig. 2 is the block diagram of circuit of the lamp of Fig. 1.

Fig. 3 is the circuit diagram of the lamp of Fig. 1.

Embodiment

Next referring to accompanying drawing, show lamp or light fixture 10 with preferred form of the present invention.Lamp 10 comprises switch housing 11, and switch housing 11 is coupled to a series of four lamp sockets 12 through being shown as, although the number of lamp socket can change; And tractive chain switch 13, it comprises the tractive chain or restricts 13 '.Bulb 15 is installed in each lamp socket 12.Tractive chain switch 13 can be the single-pole single-throw throw switch, and its electric current of being responsible for flowing to by control bulb 15 turns on and off bulb 15.Light fixture 10 also comprises controller or the dimmer module 17 of electric coupling between tractive chain switch 13 and lamp socket 12.

As showing best among Fig. 2, light organ module 14 comprise can be electrically coupled to conventional AC household current source AC to DC transducer 21.Transducer 21 converts the 120VAC input current to the 12VDC output current.The power electronic assembly that circuit is tackled its full wave bridge rectifier circuit and support has good heat management.Transducer 21 is coupled to 5 hint adjusters 22, described linear regulator can make the 12VDC input current drop to through regulate+5VDC output.Adjuster 22 is coupled to microcontroller 24, for example the NEC UPD78F9200 type of the NEC Corporation of America in the Irving of Texas town manufacturing.This microcontroller is 8 8-digit microcontrollers, and it is used to handle tractive chain switch 13 input control signals, and provides output pulse width modulation (PWM)/duty cycle signal for illumination or the grade of light-modulating mode.Microcontroller 24 is coupled to tractive chain switch 13 by RC timing circuit 26.Timing circuit 26 is resistor-capacitor circuit timing circuits, and it provides time delay for tractive chain switch 13, thereby sets up the initial function of light-modulating mode.

Pulse width modulation transistor driver 29 is coupled in the output of microcontroller 24, its be in essence be used to guarantee suitable square wave current and voltage level be enough to the incandescent lamp triac driver electronic circuit 31 that is coupled to it carry out brightness adjustment control general negative-just-the negative crystal pipe.Electronic circuit 31 is used for coming level of illumination control is connected or turned down to bulb continuously by the power level that is provided to lamp socket.Described electronic circuit can be the BTA08B triac by the STMicroelectronics manufacturing of Geneva, Switzerland.

Fig. 3 shows the circuit diagram referring to the described assembly of Fig. 2.

In use, tractive chain 11 ' actuating make switch 11 be in complete lighting position.If strong pull and rapid release tractive chain 11 ', lamp module would turn-off the power that arrives bulb immediately so.Yet, if strong pull tractive chain 11 ', and make it maintain drop-down position, and promptly continuing to activate or constantly leave behind from the position of its initial illumination, light grade or intensity will reduce gradually or incrementally so.Term " incrementally " is intended to expression and reduces with a succession of recognizable increment, or the level and smooth or continuous transformation of throwing light on and reducing.

Control the process that makes power turn-off or turn down gradually luminous intensity immediately by timing circuit 26, wherein timing circuit sensing rapid release is with the shutoff immediately of initial power, or the continuous tractive action of sensing is with initial progressively light modulation.

In a single day described electronic circuit has the memory feature in microcontroller, wherein selected luminous intensity, the recirculation of power (connection/shutoff) will make light adjusting circuit turn back to the luminous intensity of previous selection.

Should be appreciated that dimmer also can be through design increasing luminous intensity gradually, rather than reduce luminous intensity.Thus, dimmer can arbitrary mode change luminous intensity.

Should also be clear that can electronic applications known to the skilled multiple mode come the design dimmer circuit, and dimmer circuit is not limited to the specific embodiment shown in the accompanying drawing.

Should also be clear that described lamp can be designed to independently lamp or through design to be coupled to the lamp of ceiling fan F or other object.

Therefore as seen, now provide a kind of be used to the have lamp of tractive chain or the light organ of light fixture.Though specificly describe the present invention in detail with reference to the preferred embodiments of the present invention, but should be appreciated that, can be under not breaking away from as situation by the described the spirit and scope of the present invention of appended claims, to the present invention make many modifications, interpolation and deletion (except that those clearly state).

Claims (10)

1. lamp, it comprises,

Shell;

At least one lamp socket, it is coupled to described shell;

Dimmer, it is coupled to described lamp socket, and described dimmer circuit comprises the tractive chain, is coupled to the tractive chain switch of described tractive chain and is coupled to described tractive chain switch and is installed in light adjusting circuit in the described shell,

Whereby, the actuating of described tractive chain impels the described light adjusting circuit of described tractive chain actuation of the switch, to reduce the power that arrives described lamp socket.

2. lamp according to claim 1, wherein said light adjusting circuit comprises microcontroller, and described microcontroller has can store the memory capabilities of selecting power level,

Whereby, if described light adjusting circuit turn-offs the power that arrives described socket, the actuating subsequently of described tractive chain switch makes described power level turn back to described selection power level.

3. lamp according to claim 1, wherein said light adjusting circuit comprises timing circuit, described timing circuit can be when described timing circuit senses the actuating of the first kind of described tractive chain switch, turn-off the power that arrives described lamp socket immediately, and when described timing circuit senses the actuating of second type of described tractive chain switch, turn-off the power that arrives described lamp socket gradually.

4. lamp according to claim 3, wherein said light adjusting circuit comprises microcontroller, and described microcontroller has can store the memory capabilities of selecting power level,

Whereby, if described light adjusting circuit turn-offs the power that arrives described socket, the actuating subsequently of described tractive chain switch makes described power level turn back to described selection power level.

5. lamp according to claim 1, wherein said shell are suitable for cooperating with ceiling fan.

6. lamp, it comprises,

Shell;

At least one lamp socket, it is coupled to described shell;

Bulb, it is coupled to described at least one lamp socket;

Tractive chain switch;

The tractive chain, it is coupled to described tractive chain switch;

Control member, it is coupled to described tractive chain switch, being used to control the illumination intensity of described bulb,

Described control member incrementally changes the illumination intensity of described bulb by the lasting actuating of described tractive chain switch.

7. lamp according to claim 6, wherein said control member comprises microcontroller, and it has can store the memory capabilities of selecting power level,

Whereby, if described control member turn-offs the power that arrives described socket, the actuating subsequently of described tractive chain switch makes described power level turn back to described selection power level.

8. lamp according to claim 6, wherein said control member comprises timing circuit, it can turn-off the power that arrives described lamp socket immediately when described control member senses the actuating of the first kind of described tractive chain switch, and turn-offs the power that arrives described lamp socket gradually when described control member senses the actuating of second type of described tractive chain switch.

9. lamp according to claim 8, wherein said control member comprises microcontroller, and it has can store the memory capabilities of selecting power level,

Whereby, if described control member turn-offs the power that arrives described socket, the actuating subsequently of described tractive chain switch makes described power level turn back to described selection power level.

10. lamp according to claim 6, wherein said shell are fit to cooperate with ceiling fan.

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