A kind of based on temperature controlled intelligent desk lamp
Technical field
The utility model belongs to household appliance technical field, particularly a kind of based on temperature controlled intelligent desk lamp.
Background technology
Desk lamp is one of modal household electrical appliance in household, most desk lamp all needs hand push button to control the switch of lamp, yet the life-span of button is limited, after a period of time, button can damage, cause a series of potential safety hazards such as electric leakage, desk lamp is increased to temp control switch can be addressed this problem well.
Utility model content
The problem existing for background technology, it is a kind of based on temperature controlled intelligent desk lamp that the utility model provides.
The technical scheme that the utility model adopts is: a kind of based on temperature controlled intelligent desk lamp, comprise: desk lamp main body, push-button switch, lighting circuit and external city plug, described push-button switch, lighting circuit and external city plug are connected in series, and described lighting circuit is arranged in described desk lamp main body, it is characterized in that: described intelligent desk lamp also comprises: supply module, single-chip microcomputer, temperature sensor, amplifier, relay coil, relay normally open contact and state switch, described supply module and described single-chip microcomputer are connected in series, described temperature sensor is connected with described single-chip microcomputer input, described single-chip microcomputer output and described amplifier, after being connected in series, relay coil is connected with described supply module, described supply module and described external city plug are connected in series, described state switch one end and described relay normally open contact, after being connected in series, lighting circuit is connected in series with described external city plug, the described state switch other end and described push-button switch, after being connected in series, lighting circuit is connected in series with described external city plug, described supply module, single-chip microcomputer, amplifier, relay coil and relay normally open contact are arranged in described desk lamp main body.
As preferably, described temperature sensor and air contact-making surface are provided with one deck insulating material.
As preferably, described state switch is single-pole double-throw switch (SPDT).
As preferably, the described relay being comprised of relay coil and relay normally open contact is 220V AC relay, and rated current is not less than 2 times of desk lamp rated current.
Compared with prior art, the utility model is owing to adopting said apparatus, make desk lamp automatically to cut off or to switch on power according to the variation of temperature, when staff touching temperature sensor, temperature sensor receives the signal of variations in temperature, thereby has controlled single-chip microcomputer output high level to relay coil, then reaches the effect that lamp is unlocked, save like this access times of button, reduced the danger of electric leakage.
Accompanying drawing explanation
Fig. 1: be circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
Ask for an interview Fig. 1, the technical scheme that the utility model adopts is: a kind of based on temperature controlled intelligent desk lamp, comprising: desk lamp main body 1, push-button switch 2, lighting circuit 3, supply module 4, single-chip microcomputer 5, temperature sensor 6, amplifier 7, relay coil 8, relay normally open contact 9, state switch 10 and external city plug 11, supply module 4 is connected in series with single-chip microcomputer 5, and temperature sensor 6 is connected with single-chip microcomputer 5 inputs, single-chip microcomputer 5 outputs and amplifier 7, after relay coil 8 is connected in series, be connected with supply module 4, supply module 4 is connected in series with external city plug 11, state switch 10 one end and relay normally open contact 9, after being connected in series, lighting circuit 3 is connected in series state switch 10 other ends and push-button switch 2 with external city plug 11, after being connected in series, lighting circuit 3 is connected in series lighting circuit 3 with external city plug 11, supply module 4, single-chip microcomputer 5, amplifier 7, relay coil 8 and relay normally open contact 9 are arranged in desk lamp main body 1.
Wherein, temperature sensor 6 is provided with one deck insulating material with air contact-making surface, state switch 10 is single-pole double-throw switch (SPDT), and the relay being comprised of relay coil 8 and relay normally open contact 9 is 220V AC relay, and rated current is not less than 2 times of desk lamp rated current.
During the utility model work, 220V power supply is powered for single-chip microcomputer by power module 4, and state switch 10 is controlled the mode of opening lighting circuit.
When state switch 10 is switched to temperature control mode, 220V power supply is connected with relay normally open contact 9, when staff touch temperature transducer 6, single-chip microcomputer 5 output high level, through amplifier 7, relay coil 8 energisings, relay normally open contact 9 closures, lighting circuit normal operation.
When state switch 10 is switched to button control pattern, 220V power supply and push-button switch 2 are directly connected, and press the button switch 2, lighting circuit normal operation.
These are only preferred embodiment of the present utility model; be not intended to limit protection range of the present utility model; therefore, all any modifications of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model within spirit of the present utility model and principle.