CN202857062U - Emergency lamp - Google Patents
Emergency lamp Download PDFInfo
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- CN202857062U CN202857062U CN 201220482705 CN201220482705U CN202857062U CN 202857062 U CN202857062 U CN 202857062U CN 201220482705 CN201220482705 CN 201220482705 CN 201220482705 U CN201220482705 U CN 201220482705U CN 202857062 U CN202857062 U CN 202857062U
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Abstract
The utility model relates to an emergency lamp comprising a processor unit, a battery unit, an output unit and an input unit. The battery unit, the output unit and the input unit are respectively connected with the processor unit. The output unit at least comprises a light source, and a light path of the light source is provided with a light path guiding device. The light source is a light emitting diode lamp. A power supply circuit of the light source is provided with a current sensor which is formed by the parallel connection of a resistor and a capacitor and is used for converting a current signal into a voltage signal and then sending the voltage signal to the processor unit. The processor unit controls the current to be constant. According to the emergency lamp, the light path guiding device is a Fresnel lens, so light emitted by the light source is controlled and emitted toward the ground, equal irradiation of the light of the light source toward the periphery of the light source is prevented, and the effective lighting efficiency of the light source can be improved.
Description
Technical field
The utility model relates to a kind of emergency light of lighting technical field, particularly relates to a kind of emergency light that can the effective supply light efficiency.
Background technology
The emergency lighting system of domestic use is take self-powered independent control type as main, and normal power source connects in the general lighting current supply circuit, at ordinary times to the emergency light charge in batteries, and when normal power source cuts off, stand-by power supply (storage battery) automatic power.Each lamp interior of the emergency light of this form has a large amount of electronic devices and components such as transformation, voltage stabilizing, charging, inversion, storage battery, and emergency light battery when use, maintenance, fault all need discharge and recharge.Another kind is centrally connected power source centralized control type, without independent current source, during the normal illumination power failure, is powered by central power supply system in the emergency luminaire.In the emergency lighting system of this form, the electronic circuit of all lamp interior complexity has been saved, and emergence lighting lamp and common light fixture are as good as, and central power supply system is arranged in the special-purpose room.Self-powered independent control type emergency luminaire because in each emergency luminaire with stand-by power supply (storage battery), so supply line is not had special requirement, supply line's fault can't have influence on stand-by power supply and have an effect.When breaking down, emergency light generally also only affects this light fixture itself, and little on the whole system impact.
But the battery in the existing self-powered independent control type emergency light will manually be done charge and discharge cycles one time with some months, and not so battery life will shorten very soon, but safeguards so just very inconvenient.In addition, existing emergency light all is just to understand bright light when having a power failure, even the residing place of this emergency light is dim unglazed, this emergency light can not provide illumination yet.
This shows, above-mentioned existing emergency light obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.The problem that exists in order to solve emergency light, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, finished by development but have no for a long time applicable design always, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious wish of relevant dealer solves.
The utility model content
Main purpose of the present utility model is, overcome the defective that existing emergency light exists, and provide a kind of emergency light of new structure, technical problem to be solved is can make to adjust the light direction of illumination, thereby improve the efficient of illumination, thereby more be suitable for practicality, and have the value on the industry.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of emergency light that the utility model proposes, it mainly comprises processor unit, battery unit, and output unit and input unit, described battery unit, output unit and input unit are connected to processor unit; Described output unit comprises light source at least, and is provided with the light path guider in the light path of light source.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Preferably, aforesaid emergency light, wherein said light source are LED light lamp, are provided with the current sensor that is made of resistance and Capacitance parallel connection at the power supply circuits of light source, be delivered to processor unit after current signal is changed into voltage signal, processor unit control electric current keeps constant.
Preferably, aforesaid emergency light, wherein said output unit also comprises one or more in loud speaker, USB interface and the alarm lamp.
Preferably, aforesaid emergency light, wherein said battery unit comprises transformer, management of charging and discharging module and battery pack, described management of charging and discharging module is used for control battery pack is charged or discharge process.
Preferably, aforesaid emergency light, wherein said input unit comprises the power failure sensing module, this power failure sensing module is used for the incoming end of monitoring power supply, when not having voltage in the electrical network, the power failure sensing module can be judged as power supply and have a power failure, and processor unit can be controlled light source luminescent.
Preferably, aforesaid emergency light, wherein said input unit also comprises one or more in illuminant module, sound transducer, Smoke Sensor, infrared sensor and the approach switch, illuminant module is used for the brightness of monitoring emergency light environment of living in; Whether sound transducer is used for monitoring emergency light environment of living in sound; Infrared sensor is used for the infrared radiation situation of monitoring of environmental; Described approach switch is used for monitoring whether interventional instrument of described USB interface.
Preferably, aforesaid emergency light, wherein said management of charging and discharging module is after battery pack is full of, and when battery capacity descends after 20%, again charging the battery to battery capacity is full of; This management of charging and discharging module is also regularly carried out the auto charge and discharge circulation.
Preferably, aforesaid emergency light, wherein said light path guider is Fresnel Lenses.
By technique scheme, the utility model emergency light has following advantages at least:
The LED lamp that is used for emergency light in the utility model is 2 strings 17 structures also, the driving voltage that the LED lamp needs is approximately 6.4v, common way is raised to cell voltage 6.4v exactly as the constant voltage drive source, directly be added on the LED, this way has a not enough place, single LED lamp is actually needs constant current driven, and in the utility model, the electric current that each LED lamp needs is 20mA.Because the LED lamp is when different ambient temperatures, its volt-ampere feature can great changes will take place, if constant voltage drives, drive source can't guarantee the current constant on the LED lamp, and prominent large prominent little electric current can cause two kinds of consequences: the LED luminosity is unstable and the LED light decay is too fast.
And the utility model has all adopted the constant current processing for each paths of LEDs lamp, it adopts the resistance in 1 Europe and the electric capacity of 1uF to consist of current sensor, be delivered on the AD mouth of processor unit after current signal changed into voltage signal, processor unit makes the electric current on the LED remain constant by adjusting the duty ratio of PWM port behind this circuit sensory current.Adopt the LED lighting technology, the single of this emergency light is triggered extending to 8-12 hour from 3 hours cruising time.(traditional lead-acid battery emergency light flying power is 1.5 hours).
In addition, answer emergency light different with tradition, the utility model also has a USB charge function, when the USB joint is arranged on the USB interface, after perceiving by approach switch, processor unit can make the output voltage of booster circuit into 5V to equipment charge, after transfering to the USB joint, processor unit again current constant mode is powered to LED.
Common emergency light all is just to understand bright light when having a power failure, and the utility model in addition, photo-sensitive cell and high sensitivity sonic transducer have also been added, when surround lighting is very dark, and during somebody's movable sound, emergency light of the present utility model also can bright light, this function can advantage the time broken and when not having a power failure when the king light in corridor, emergency light also can be light, thereby realized the function of Intelligent luminous.
Battery in traditional emergency light will manually be done charge and discharge cycles one time with some months, not so battery life will shorten very fast, but safeguard so just very inconvenient, the utility model has also added the Intelligent lithium battery management of charging and discharging, after battery is full of, only has battery capacity to descend after 20%, just again charge the battery, or per 6 months automatic dischargings, circulation of charging, battery just can not maintain full state for a long time like this, is conducive to improve battery life.
Because to the adequately protecting and use constant current to drive of battery, the life-span of emergency light of the present utility model will reach the 2-3 of 8-10 rather than traditional emergency light.
Multi-functional, alarming function that the utility model is also integrated, at first, processor unit carries out overall monitor to lithium battery, when battery overcurrent, overheated or when other abnormal conditions occur, provides without exception warning, and cuts off input, output, waits for that the user processes.After abnormal conditions were eliminated, system can allow battery normally recover again running automatically.Secondly, also be furnished with Smoke Sensor and loud speaker, when the residing on-the-spot smog of system is excessive when the fire sign is arranged, can allow loud speaker send sharp-pointed chimes of doom, thus the reminding user fire preventing.
The utility model adopts flat film Fei Nier lens technologies and LED light-emitting component, makes product thinner, and its volume is approximately 16cm x 8cm x 3.8cm; Weight is approximately about 380 grams.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and cooperate accompanying drawing to be described in detail as follows.
Description of drawings
Fig. 1 is the structured flowchart of the utility model emergency light.
Fig. 2 is the mechanical structure schematic diagram of the utility model emergency light.
Fig. 3 is the circuit theory diagrams of the utility model one embodiment.
Embodiment
Be to reach technological means and the effect that predetermined utility model purpose is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of emergency light, structure, feature and the effect thereof that the utility model proposes, be described in detail as follows.
Seeing also shown in Figure 1ly, is the structural representation of emergency light of the present utility model.Emergency light of the present utility model mainly comprises processor unit 10, battery unit 20, and output unit 30 and input unit 40, described battery unit 20, output unit 30 and input unit 40 are connected to processor unit 10.Described battery unit 20 comprises transformer 21, management of charging and discharging module 22 and battery pack 23; Described input unit comprises power failure sensing module 41, illuminant module 42, sound transducer 43, Smoke Sensor 44, infrared sensor 45 and approach switch 46.
Described battery unit 20 is used for from electrical network power taking and storing electricity, and (when perhaps environment is dim) provides electric weight to output unit under the control of processor unit 10 can't normal power supply the time, thereby makes the light source luminescent in the output unit 30 that illumination is provided.Described transformer 21 is used for changing the alternating current of municipal AC85-265V into direct current in order to battery pack 23 is charged.Battery pack 23 is preferably lithium ion battery (Li-ion battery) or lithium polymer battery (Li-polymer).
Management of charging and discharging module 22 is used for control battery pack 23 is charged or discharge process.After battery pack 23 was full of, when battery capacity descends after 20%, again charging the battery to battery capacity was full of, and this is different from traditional emergency light reduces battery with regard to timely charging when battery pack is discontented with life-span.In addition, this management of charging and discharging module 22 is also regularly carried out the auto charge and discharge circulation, the circulation of for example automatically discharging, charge in per 6 months, and battery just can not maintain full state for a long time like this, is conducive to improve battery life yet.Because to the adequately protecting and use constant current to drive of battery, the life-span of emergency light of the present utility model can reach the 2-3 of 8-10 rather than traditional emergency light.Described battery pack 23 is used for storing electric weight, and provides electric weight to output unit 30 under the control of processor unit 10, for example to light source or USB excuse power supply.
Described output unit 30 comprises light source 31, loud speaker 32, USB interface 33 and alarm lamp 34, and wherein light source 31 is necessary device for illumination is provided, and other devices are optional equipments.Under the control of processor unit 10, carry out luminous.Better, this light source 31 adopts the LED lamp as light source, preferably adopts 2 strings 17 structure also, and the driving voltage that the LED lamp needs is approximately 6.4v.Existing common way is raised to cell voltage 6.4v exactly as the constant voltage drive source, directly be added on the LED, this way has a not enough place, and single LED lamp is actually needs constant current driven, in in utility model, the electric current that each LED lamp needs is 20mA.Because the LED lamp is when different ambient temperatures, its volt-ampere feature can great changes will take place, if constant voltage drives, drive source can't guarantee the current constant on the LED lamp, and prominent large prominent little electric current can cause two kinds of consequences: the one, LED luminosity is unstable; The 2nd, LED light decay is too fast.So, the utility model is provided with the current sensor 311 of resistance and electric capacity formation, be delivered to processor unit 10 after current signal is changed into voltage signal, processor unit 10 makes the electric current on the LED remain constant by adjusting the duty ratio of PWM port behind this circuit sensory current.Simultaneously, as shown in Figure 2, emergency light of the present utility model also comprises housing 1 and panel 2 on mechanical structure, light path at light source 31 on panel 2 is provided with light path guider 312, this light path guider is preferably Fresnel Lenses, thereby can make controlledly directive ground of light that light source sends, the light that prevents light source to around impartial irradiation, thereby can improve the effective lighting efficient of light source.Because the effect of emergency light is to provide light to the people who is in without in the luminous environment, and general people stands in and advances on the ground, and the space for surpassing more than 2 meters then need not the light that provides the same with territory lighting brightness.In addition, this Fresnel Lenses can be finely tuned in use the angle of this Fresnel Lenses, thereby can make the user better adjust the range of exposures of light to be coupling or hinged mode is installed on the panel for the user.Loud speaker 32 is used for providing voice signal, plays prompting and alarm function.Described USB interface 33 is used for outwards providing the 5V direct current, to satisfy mobile phone or IPAD charging, with Function Extension all scopes to family's articles for use, donkey friend and temporary lighting.When this USB interface insertion is recharged equipment, approach switch 46 can detect equipment and insert, processor unit 10 can control circuits provides the direct current of 5V to USB interface, when the equipment of USB interface is pulled out post-processor unit again can be with current constant mode to light source power supply.Described alarm lamp 34 is used for providing the light warning signal, with flash model or normal bright mode, and the state of this emergency light of prompting user or case of emergency occurs.For example, the electric weight of expression battery pack, charged state, discharge condition perhaps is in the malfunction lamp.
Described input unit comprises power failure sensing module 41, illuminant module 42, sound transducer 43, Smoke Sensor 44, infrared sensor 45 and approach switch 46.The sensing module 41 that wherein has a power failure is necessary devices, and other device is option means.This power failure sensing module 41 is used for the power access end of monitoring transformer 21, when the incoming end of power supply does not namely have voltage (or electric current) in the municipal electrical network, power failure sensing module 41 can be judged as power supply and have a power failure, and with this notification processor unit 10 as a result, it is luminous that processor unit can be controlled light source 31, thereby carry out emergency lighting.Illuminant module 42 is used for the brightness of monitoring emergency light environment of living in; Whether sound transducer 43 is used for monitoring emergency light environment of living in sound.When surround lighting is very dark, and during somebody's movable sound, it is luminous that processor unit can be controlled light source 31, and when the king light in corridor had been broken and do not had a power failure, emergency light also can be light, thereby realized the function of Intelligent luminous during the advantage of this function.Described Smoke Sensor 44 is used for the smog situation of monitoring of environmental, mainly be for fire alarm, when the residing on-the-spot smog of emergency light excessive, when the fire sign is arranged, the processor unit of emergency light can allow loud speaker 32 send sharp-pointed chimes of doom, thus the reminding user fire preventing.Infrared sensor 45 is used for the infrared radiation situation of monitoring of environmental, matches with illuminant module, in the situation that environment is dim, when the people being arranged or have fire condition to occur, this emergency light can start that light source throws light on or start simultaneously loud speaker reports to the police.Described approach switch 46 is used for monitoring whether interventional instrument of described USB interface, when the equipment that monitored inserts, is then provided the DC power supply of 5V to USB interface by processor unit control.
As shown in Figure 3, be the circuit theory diagrams of an embodiment of the present utility model.The port LOADSW control electronic switch Q2(MOSFET of processor unit MCU), simultaneous processor unit MCU is also by port AD0 sampling cell voltage, processor unit MCU opened port LOADSW automatically in per 6 months, battery BT1 is discharged to load R2, until the cell voltage of processor unit MCU sampling is lower than safe voltage, processor unit MCU can automatically shut down electronic switch Q2, then processor unit MCU opens the Enable Pin of charging integrated circuit U3 by port INSW, make battery BT1 enter the self-charging state until reach battery capacity 95% till.Thereby realize carrying out in per 6 months circulation discharge-charging once, the abundant chemism of activated batteries, thereby realize battery from maintenance function, avoid the too early decline of battery capacity and guaranteed designed life of battery.
Resistance R 1 forms current sampling circuit as current sensor jointly with capacitor C 1, convert the current value on the light source led to port AD1 that magnitude of voltage passes to processor unit MCU according to the conversion proportion of 1V/1A, behind the processor unit MCU sensory current electric current and set point are made comparisons, if electric current is greater than set point, processor unit MCU can reduce the duty ratio of port PWM, make current reduction, otherwise, processor unit MCU can increase port PWM duty ratio, make Current rise, so just realize the constant current driving, guaranteed the current stabilization of light source led.
Because LED is the semiconductor device to the electric current sensitivity, has again negative temperature coefficient, thereby in application process, need to stablize its operating state (electric current) because the electric current of the brightness of LED and the LED that flows through is nonlinear function, current stabilization its brightness also just stable.Otherwise, when electric current is too high, LED will generate heat in a large number and brightness also unstable, more seriously, when electric current be higher than rated current 20% the time, the life-span of LED can reduce half, can cause also that simultaneously serious look declines.Therefore, the benefit that adopts constant current to drive is the useful life that can fully guarantee LED, has avoided too early look to decline and has guaranteed the lighting quality of LED.
The present embodiment has adopted the Fresnel Lenses diaphragm to conduct LED light at the light path end of light source led, these lens can focus on the LED light of dispersing as requested, also can control as requested the crevice projection angle of LED light, can also form specifically on demand among a small circle surround, such as: corridor, passageway, doorway etc.
Under normal circumstances, the port INSW of processor unit MCU is controlling the Enable Pin of the integrated circuit U3 that charges, when cell voltage be reduced to preset the charging window lower in limited time, processor unit MCU assigns charging instruction and charges the battery to integrated circuit U3, until till the battery capacity 95%.Otherwise processor unit MCU forbids that U3 charges the battery.
Another state is, when processor unit MCU detects AC adapter (transformer) when not having voltage (power down mode), processor unit MCU opens the Enable Pin of the integrated circuit U2 that boosts by its port OUTSW, allow battery begin discharge and make LED " bright light ", until cell voltage drops to till lower the prescribing a time limit of preset charged window.Realized thus the automatic charge and discharge management of product, also realized over and reached the purpose of protecting battery.
When the user presses button SW0, the processor unit MCU cell voltage of at first sampling, then the corresponding relation according to cell voltage and battery electric quantity calculates the electric weight that battery had at that time automatically, then pass through respectively 3 IO ports of processor unit MCU, the battery capacity indication lamp of correspondence is lighted, thus the demonstration of realization battery dump energy level.
When the cell voltage of processor unit MCU by port AD sampling is lower than default safe voltage, processor unit MCU can turn-off by port OUTSW the Enable Pin EN of the integrated circuit U2 that boosts, the integrated circuit U2 that boosts namely stops to boost and exporting and enter resting state, simultaneously can processor unit MCU stop clock oscillation and enter the resting state of low-power consumption, avoid the overdraw of cell safety capacity and damage battery.So realized the function of POWER DOWN.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. emergency light is characterized in that: comprise processor unit, and battery unit, output unit and input unit, described battery unit, output unit and input unit are connected to processor unit; Described output unit comprises light source at least, and is provided with the light path guider in the light path of light source.
2. emergency light according to claim 1, it is characterized in that, described light source is LED light lamp, power supply circuits at light source are provided with the current sensor that is made of resistance and Capacitance parallel connection, be delivered to processor unit after current signal is changed into voltage signal, processor unit control electric current keeps constant.
3. emergency light according to claim 2 is characterized in that, described output unit also comprises one or more in loud speaker, USB interface and the alarm lamp.
4. emergency light according to claim 1 is characterized in that, described battery unit comprises transformer, management of charging and discharging module and battery pack, and described management of charging and discharging module is used for control battery pack is charged or discharge process.
5. emergency light according to claim 1 is characterized in that, described input unit comprises the power failure sensing module, this power failure sensing module is used for the incoming end of monitoring power supply, when not having voltage in the electrical network, the power failure sensing module can be judged as power supply and have a power failure, and processor unit can be controlled light source luminescent.
6. emergency light according to claim 3, it is characterized in that, described input unit comprises one or more in illuminant module, sound transducer, Smoke Sensor, infrared sensor and the approach switch, and illuminant module is used for the brightness of monitoring emergency light environment of living in; Whether sound transducer is used for monitoring emergency light environment of living in sound; Infrared sensor is used for the infrared radiation situation of monitoring of environmental; Described approach switch is used for monitoring whether interventional instrument of described USB interface.
7. each described emergency light is characterized in that according to claim 1-6, and described light path guider is Fresnel Lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482705 CN202857062U (en) | 2012-09-20 | 2012-09-20 | Emergency lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482705 CN202857062U (en) | 2012-09-20 | 2012-09-20 | Emergency lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202857062U true CN202857062U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220482705 Expired - Fee Related CN202857062U (en) | 2012-09-20 | 2012-09-20 | Emergency lamp |
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| Country | Link |
|---|---|
| CN (1) | CN202857062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233387A (en) * | 2019-04-24 | 2019-09-13 | 昆明理工大学 | A kind of automatic-control illumination lamp seat and its control method |
-
2012
- 2012-09-20 CN CN 201220482705 patent/CN202857062U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233387A (en) * | 2019-04-24 | 2019-09-13 | 昆明理工大学 | A kind of automatic-control illumination lamp seat and its control method |
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Legal Events
| 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: 20130403 Termination date: 20150920 |
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| EXPY | Termination of patent right or utility model |