CN2290002Y - Automatic lighting, sterilization deodorization device for refrigerator - Google Patents

Abstract

The utility model relates to an automatic lighting, sterilization and deodorization device for a refrigerator, comprising a shaped ultraviolet lamp 1, a high voltage actuating glow starting electronic device 2 and a control device 3. The power supply line of the shaped ultraviolet lamp is connected to the output line of the electronic device, and the input line of the electronic device is connected to the door touching switch of a refrigerating chamber to meet the requirement that when a door is opened, the shaped ultraviolet lamp lights; a contact switch arranged in the control device can periodically and automatically times to switch the power supply of the electronic device on and off, so that the shaped ultraviolet lamp automatically times to radiate ultraviolet rays in a plurality of periods every day for disinfection and removing foreign odor. The lamp tube of the shaped ultraviolet lamp is a shaped structure. The utility model has the characteristics of small external dimension, few area occupation, and convenient food storage.

Description

Automatic illumination, sterilization and deodorization apparatus that refrigerator is used

The utility model relates to a kind of indoor electronics of refrigerator storage deodorizing device that throws light on automatically, sterilizes that is used for.

Existing be used for that the indoor electronics of refrigerator cold-storage throws light on automatically, bactericidal unit, comprise ultraviolet lamp, bidirectional triode thyristor SCR and controllable silicon power on/off control circuit, bidirectional triode thyristor is connected in the power supply circuits of ultraviolet lamp, its control utmost point (G) connects controllable silicon power on/off control circuit, control circuit can control ultraviolet lamp regularly work and radiation ultraviolet disinfection and double as illumination.Because the fluorescent tube of its ultraviolet lamp is " one " font, it is straight pipe type, the straight pipe type quartz burner is bigger in the appearance and size of length direction, power is that the length of five watt-hours reaches nearly 30 centimetres, causes the device appearance and size that is constituted bigger, influences seasoning food when being used in the refrigerating chamber, and because of the circuit reason, fluorescent tube needs three seconds more than time stably to light in the starter process, can not satisfy " it is promptly bright to open the door " requirement of illumination automatically.

The purpose of this utility model provides automatic illumination, the sterilization and deodorization apparatus that a kind of refrigerator is used, the appearance and size of this device length direction little and the institute take up space little, can reduce influence to seasoning food, and satisfy the automatic lighting requirement of " it is promptly bright to open the door ", and can periodicity self-timing eradiation ultraviolet disinfection.

Technical scheme is, the utility model includes corresponding ultraviolet radiation surface area, and special-shaped ultraviolet lamp 1 and the high multiplication of voltage excitation glow starting electronic device 2 that can make special-shaped ultraviolet lamp " instantaneous lighting " that length direction appearance and size is little, and the control device 3 of controlling special-shaped ultraviolet lamp periodicity self-timing eradiation ultraviolet disinfection, referring to Fig. 1, the supply line of abnormity ultraviolet lamp 1 connects the outlet line of high multiplication of voltage excitation glow starting electronic device 2, when packing refrigerator into, the incoming line of this electronic device connects power circuit, when its power connection, because the effect of this electronic device, can make that special-shaped ultraviolet lamp is instantaneous to be lighted, when the incoming line of this electronic device connects " door touches " switch of cold compartment of refrigerator door, when opening refrigerating-chamber door, special-shaped ultraviolet lamp can instantaneous lighting and satisfy the automatic lighting requirement of " it is promptly bright to open the door ".The quartz burner of abnormity ultraviolet lamp is a polymorphic structure, because original straight pipe type fluorescent tube is improved to not only can satisfy to be had corresponding ultraviolet radiation surface area, but also can reduce the special-shaped quartz burner of length direction appearance and size, the appearance and size of special-shaped ultraviolet lamp is reduced, reach less the purpose that takes up space, is convenient to install and seasoning food is reduced influence.When this device is packed refrigerator into, the incoming line of described control device connects power circuit, one switch contacts that periodically switch on and off electronic device and special-shaped ultraviolet lamp power supply is arranged in the control device self-timing, this switch contacts is located in the supply line of high multiplication of voltage excitation glow starting electronic device, the control device effect, by this switch control, make special-shaped ultraviolet lamp periodicity self-timing eradiation ultraviolet disinfection, eliminate the unusual smell.High multiplication of voltage excitation glow starting electronic device of the present utility model and control device volume are little, both can make separately, also can conjunctedly make, and are loaded on refrigerator cold-storage when indoor, can be installed with in the box body of original temperature controller or other positions, special-shaped ultraviolet lamp can replace original illuminating lamp.

Fig. 1 is a composition structure chart of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model;

Fig. 3 " n " is the shape assumption diagram of shape ultraviolet lamp, and Fig. 4 is the shape assumption diagram of " spirality " ultraviolet lamp;

Fig. 5 is the circuit embodiments figure of high multiplication of voltage excitation glow starting electronic device 2;

Fig. 6 is the circuit embodiments figure of control device 3.

The utility model is described in further detail below in conjunction with embodiment.

The enforcement structure of abnormity ultraviolet lamp.

The fluorescent tube of abnormity ultraviolet lamp can be " H " shape, " n " shape or spirality, and the quartz burner essence of described polymorphic structure is that the straight pipe type fluorescent tube with former ultraviolet lamp is improved to folding formula or rotary structure." H " shape wherein comprises single " H " shape and a plurality of " H " shape, and shown in Fig. 1 is the structure of single " H " shape; " n " wherein comprises single " n " shape and a plurality of " n " shape, Figure 3 shows that the structure of two " n " shapes, and Fig. 4 represents spiral quartz burner." one " font straight pipe type fluorescent tube is improved to folding formula or rotary structure, its technique effect is to satisfy when corresponding ultraviolet radiation surface area is arranged, can reduce the appearance and size of its length direction significantly, when especially being two or more " H " shape, " n ", its effect is then more obvious, thereby reaches the appearance and size that reduces ultraviolet lamp and take up space, reduce the purpose to the seasoning food effect less.Quartz burner with two " n " shapes is an example, when the diameter of " n " shape pipe is 12 millimeters, during 2 centimetres of two vertical tube center distance, satisfying when 84 square centimeters ultraviolet radiation surface area is arranged, only 5 centimetres of the height of " n " shape pipe, when its power is 5 watt-hours, radiation-curable spectral wavelength is about the ultraviolet ray of 205 nanometers.

High multiplication of voltage excitation glow starting electronic device circuitry embodiment is referring to Fig. 5.This circuit comprises rectification, filtering, current limliting, high multiplication of voltage excitation starter and protected location; the rectification unit input is the power input of this device circuit; the output of rectification unit connects filter unit; the output of filter unit connects the current limliting unit; the output of current limliting unit connects high multiplication of voltage excitation starter unit; the output of high multiplication of voltage excitation starter unit is the line output of this device, connects the incoming line of special-shaped ultraviolet lamp 1.In this example, high multiplication of voltage excitation starter unit is with Q ₁, L ₁, L ₂, L ₃Be core parts, L ₂With L ₁, L ₃Around on the contrary, protected location is with Q on toroidal core ₂Be core parts, Q ₁Base stage meet L ₁, L ₁Another termination L ₃An end, L ₃Another termination ballast coil T, the Q in the protected location ₂Base stage meets L ₂An end, Q ₂Colelctor electrode meet Q ₁Emitter stage.

Operation principle is, when connecting power supply, by D ₁-D ₄Rectification, C ₁Wave-wave, R ₁Deliver to high multiplication of voltage excitation starter unit after the current limliting, to C ₃, C ₄And by filament to C ₅Charging is because D in the circuit ₅, R ₂, C ₂Effect, have low slitting to occur in the circuit, form pulsating current, and Q ₁Conducting continually produces the switching pulse electric current under the effect by action the time, and through L ₁, L ₃Effect makes C ₅Two ends produce high multiplication of voltage exciting current and act on filament, the then instantaneous starter of special-shaped ultraviolet lamp and lighting.When the incoming line of this electronic device connect refrigerating-chamber door " door touches " switch, promptly when opening refrigerating-chamber door, ultraviolet lamp is instantaneous to be lighted.After ultraviolet lamp is lighted, as too high voltages appears, or during super-high-current, because L ₂With L ₁, L ₃On toroidal core around on the contrary, its phase place is also opposite, with Q ₂For the protected location input of core parts by coil L ₂Lotus root is bonded to the output of high multiplication of voltage excitation starter unit.Therefore, when too high voltages or super-high-current occur, by L ₂The lotus root cooperation with and form the positive feedback induced potential and add to Q in the protected location ₂Input, Q ₂Conducting is saturated immediately; the voltage that is added on the high multiplication of voltage excitation starter unit is descended; electric current also reduces thereupon; it is protected location plays constant current, slicing, anti-overvoltage, anti-overflow effectively to the output of high multiplication of voltage excitation starter unit protective effect; protect special-shaped ultraviolet lamp operate as normal under constant current, and help prolonging its service life.In addition, in force, the power input line road of this electronic device connects refrigerating-chamber door " door touches " switch.

The circuit embodiments of control device 3 is seen Fig. 6.This circuit comprises step-down, rectification, filtering, the work timing, rest timing and performance element, the input of pressure unit is the line input of this control device, pressure unit output connects rectification unit, rectification unit output connects filter unit, filter unit output connects interactional work timing unit and rests timing unit, the output of work timing unit connects performance element, one switch contacts is arranged in the performance element, after this control device is connected circuit, because the interaction of each unit, this switch contacts switches on and off the power supply of high multiplication of voltage excitation glow starting electronic device and special-shaped ultraviolet lamp periodically self-timing, light the radiation ultraviolet disinfection with making special-shaped ultraviolet lamp property performance period self-timing.In addition, the incoming line of this control device directly connects the refrigerator power supply.

The operation principle of control device circuit is, when connecting its power supply, through R ₁, R ₂, C ₁Step-down is by D ₁-D ₄Rectification, C ₂Filtering.Adopt ic chip as work timing unit and the core parts of timing unit of resting in this example, the circuit of this kind form is also referred to as dual time base circuit.1～7 pin and the top thereof of IC piece are divided into the work timing unit, and 8～14 pin and its underpart are for resting timing unit.When power supply is imported IC after filtering, because its 10 pin meets R ₃, C ₃, according to setting required time constant, C ₃Both end voltage can not be suddenlyd change, and makes 10 pin voltages near zero-bit, and the timing unit that rests is forced to reset, 9 pin output low levels, R ₇To C ₇Charging is because C ₇Effect, work timing unit 6 pin starting voltages be lower than 1/3rd " VC " when (referring to dc source voltage), work timing unit be triggered earlier, its output 5 pin are high level, D ₆Conducting is amplified promotion through triode Q, and the relay J of performance element gets electric adhesive, switch contacts J closure is connected the power supply that high multiplication of voltage encourages glow starting electronic device 2 and special-shaped ultraviolet lamp, referring to Fig. 2, the abnormity ultraviolet lamp is lighted the duty that enter the radiation ultraviolet disinfection, eliminates the unusual smell.The working time of abnormity ultraviolet lamp is by R ₅, C ₄Selected parameter is determined.Along with R ₅To C ₄C is worked as in the variation of charging ₄Two ends are IC piece 2 pin voltages when reaching 2/3rds " VC ", and the upset of work timing unit makes 5 pin become low level, D ₆End, the relay J dead electricity of performance element discharges, and its switch contacts J throws off automatically and cuts off the electricity supply, and special-shaped ultraviolet lamp is promptly finished the work in this cycle and stopped.Simultaneously, during the level upset of work timing unit 5 pin output by way of C ₆Deliver to and rest trigger end 8 pin of timing unit, at this moment, C ₃Full charge, this unit is in free duty, so this unit is triggered, output 9 pin become high level by low level, and control the work timing unit effectively, make special-shaped ultraviolet lamp be in the state of quitting work in the time of setting, and promptly rest the stage.Idle hours is by R ₄, to C ₅The time of charging is decided.Work as C ₅Both end voltage is when promptly 12 pin voltages rise to 2/3rds " VC ", and the timing unit that rests regularly finishes, and its output 9 pin become low level, and the signal of decline is through C ₇, R ₇Differential circuit is delivered to work timing unit trigger end 6 pin, and the timing unit of will working once more triggers, and begins effect, the relay J that makes performance element once more electric adhesive, its switch contacts auto-closing, special-shaped ultraviolet lamp then carry out second period work.Go round and begin again, special-shaped ultraviolet lamp is the work of property performance period self-timing, carry out every day in a plurality of cycles self-timing radiation ultraviolet disinfection, eliminate the unusual smell.

Mode of connection when the utility model is loaded on cold compartment of refrigerator can be referring to Fig. 2 or Fig. 6, and the power input line road of high multiplication of voltage excitation glow starting electronic device connects " door touches " switch 4, and control device 3 incoming lines directly connect power supply, and are in parallel with the circuit of electronic device.F end shown in Fig. 6 promptly connects the input circuit of electronic device, and when opening refrigerating-chamber door, " door touches " switch closure is connected power supply, and special-shaped ultraviolet lamp can instantaneously be lighted, and satisfies the automatic lighting requirement of " it is promptly bright to open the door ".

Detect through sample lamp about 215 nanometers of ultraviolet spectrum wavelength, the work of sample lamp is in the time of 15 minutes, sterilization rate to coli strain, staphylococcus aureus strains and Bacillus subtillis black mutation bacterial strain is 99.9%, works 60 minutes the time, and sterilization rate is 100%.Therefore, food and extend freshness date effectively.

The utlity model has following technique effect:

1. because the fluorescent tube of ultraviolet lamp is set to polymorphic structure, corresponding ultraviolet radiation table is arranged satisfying During area, can dwindle significantly its appearance and size, it is little to take up space during use, can reduce seasoning food Impact.

2. high multiplication of voltage excitation glow starting electronic device is set, can makes that special-shaped ultraviolet lamp is instantaneous to be lighted, and special-shaped ultraviolet lamp is had overcurrent, overvoltage protection effect, help prolonging its service life.

3. control device 3 is set, special-shaped ultraviolet lamp is periodically worked on self-timing ground, carry out every day in a plurality of cycles self-timing radiation ultraviolet disinfection, eliminate the unusual smell, easy to use.

Claims (5)

1, the automatic illumination that refrigerator is used, sterilization and deodorization apparatus, it is characterized in that this device includes corresponding ultraviolet radiation surface area, and the little special-shaped ultraviolet lamp of length direction appearance and size and can make the instantaneous high multiplication of voltage excitation glow starting electronic device of lighting of special-shaped ultraviolet lamp, and the control device of controlling this abnormity ultraviolet lamp periodicity self-timing radiation ultraviolet disinfection, the supply line of described special-shaped ultraviolet lamp connects the outlet line of high multiplication of voltage excitation glow starting electronic device, has one to switch on and off the power contact head switch that high multiplication of voltage encourages glow starting electronic device and special-shaped ultraviolet lamp in the described control device periodically self-timing.

2, automatic illumination, the sterilization and deodorization apparatus of using according to the described refrigerator of claim 1; the circuit that it is characterized in that described high multiplication of voltage excitation glow starting electronic device comprises rectification, filtering, current limliting, high multiplication of voltage excitation starter and protected location; the input of rectification unit is the power input of this electronic device circuit; rectification unit output connects filter unit; filter unit output connects the current limliting unit; the output termination high power of current limliting unit is pressed excitation starter unit, and described high multiplication of voltage excitation starter unit is with Q ₁, L ₁, L ₂, L ₃For the element of core is formed L ₂With L ₁, L ₃Around on the contrary, described protected location is with Q on toroidal core ₂For the element of core is formed Q ₂Base stage meet L ₂An end, Q ₂Colelctor electrode meet Q ₁Emitter stage, Q ₁Base stage meet L ₁, L ₁Another termination L ₃One end, L ₃Another termination ballast coil T, the power input line road of this electronic device connects " door touches " switch.

3, the automatic illumination of using according to the described refrigerator of claim 2, sterilization and deodorization apparatus, the circuit that it is characterized in that described control device comprises step-down, rectification, filtering, the work timing, rest timing and performance element, the input of pressure unit is the line input of this control device, pressure unit output connects rectification unit, rectification unit output connects filter unit, filter unit output connects interactional work timing unit and rests timing unit, the output of work timing unit connects performance element, switch contacts in the performance element and " door touches " switch in parallel, the input circuit of this control device directly connects the refrigerator power supply.

4, automatic illumination, the sterilization and deodorization apparatus of using according to claim 1 or 2 or 3 described refrigerators is characterized in that the fluorescent tube of described special-shaped ultraviolet lamp is " H " shape, or " n " shape, or spirality.

5, automatic illumination, the sterilization and deodorization apparatus of using according to the described refrigerator of claim 4, it is characterized in that described " H " shape, or " n " shape, or spiral special-shaped quartz burner is a plurality of " H " shape, or a plurality of " n " shapes, or a plurality of helical lamp.

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