CN101410669A - Lighting device - Google Patents
Lighting device Download PDFInfo
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- CN101410669A CN101410669A CN 200780011486 CN200780011486A CN101410669A CN 101410669 A CN101410669 A CN 101410669A CN 200780011486 CN200780011486 CN 200780011486 CN 200780011486 A CN200780011486 A CN 200780011486A CN 101410669 A CN101410669 A CN 101410669A
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- lighting device
- light source
- lighting
- power supply
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A lighting device which includes a body with at least two contacts, an energy storage device which is connected to the contacts and which stores electrical energy when the contacts are connected to an electrical power source, a first light source, and a switch arrangement which is responsive to disconnection of the power source from the contacts and which then switches to connect the first light source to the energy storage device.
Description
Technical field
The present invention relates to lighting device, it is suitable in case of emergency providing illumination to a certain degree.
Background technology
The power failure that takes place in shelter, office, factory or other place or building at night or under than the dark situation lighting condition can cause serious consequence.For example, when power failure took place, the personnel in the factory may just operate machines, and may face the dangerous obstacle in the dark.If power failure or interruption are to result from the operation of the breaker at distribution board or panel place, so, ideally, should automatically give personnel, so that these personnel can find described breaker in the dark with adequate illumination.If power interruptions is to result from comprehensive power failure, so again, wish to throw light on so that people can carry out necessary function, for example go to bed, wash one's face and rinse one's mouth, eat or similar thing.These examples only are exemplary, not as restriction, and be to be presented to be used to show different types of problem, it can be interrupted and make the people to place oneself in the midst of in the dark or be under the dark surrounding environment lighting condition and occur being considered to natural constant supply of electric power.
Emergency lighting system and uninterruptible power system are effectively, but they are very expensive usually, and they are designed in case of emergency provide the illumination or the electric power of basic degree.
The present invention relates to a kind of cheap lighting device, it can solve above-mentioned situation at least in part.
Summary of the invention
The invention provides a kind of lighting device, it comprises the body that has at least two contact points, links to each other with described contact point and carries out the energy accumulating device of store electrical energy when described contact point is connected to power supply, first light source, and in response to power supply from the disconnection of described contact point and be switched subsequently so that described first light source is connected to the switching device of described energy accumulating device.
Described energy accumulating device can be the compact battery or the similar device of long-life, low pressure.
The power supply that described first and second contact points are connected can be the main line AC power, and described lighting device can comprise and produces the rectifier be used to the DC current that described energy accumulating device charges.
Described switching device can automatically switch between first pattern and second pattern, is connected with described energy accumulating device disconnection when described contact point is connected to described power supply at first light source described in described first pattern; Be connected with described energy accumulating device when described power supply is not connected with described first and second contact points at first light source described in described second pattern.
Described body can be any suitable shape or size.In a kind of form of the present invention, described body is configured to be connected with electric light, for example ceiling light or desk lamp.If the switch of described electric light is away from described electric light, so described switch can carry out bridge joint by the capacitor that is parallel to described switch.This just allows described energy storing device can be recharged when described switch is opened, and if power supply be interrupted, described first light source can be provided energy.The capacitor of described switch and described bridge joint can form the part of described lighting device and be introduced into wherein.Described first light source, described energy accumulating device and described switching device can be carried on the described body surface or inside directly or indirectly.For example, these elements can be carried on the printed circuit board (PCB) that is installed in successively on the described body or on other substrate.
To the small part body can be transparent so that when described first light source is energized, allow the described body of light transmission.Replacedly, although be not preferred, described first light source can be located in the outside that its at least a portion is positioned at described body.In the another kind distortion, described body comprises the window of being made by transparent material, and the light that is come out by described first light emitted can see through this window.In another distortion, described body comprises hole or opening, can pass through described hole or opening from the light of described first light source.
Described switching device preferably includes transistor or similar semiconductor devices, and it is off state when described energy storing device just is being recharged, and it no longer is applied on the described contact point or the conducting automatically when being interrupted of described power supply at power supply.
Described lighting device can comprise secondary light source, and it is provided energy when described energy accumulating device just is being recharged, and is not provided energy when described first light source is connected to described energy accumulating device.
Preferably, each light source all is a semiconductor devices, light emitting diode (LED) for example, as with white heat or gas discharge device opposite.LED is easy to switch, but and can send in a kind of mode of Energy Efficient and be other illumination of acceptor level.
Described contact point can comprise or can be connected to the terminal that is easy to be connected to electric lead with linearity or parallel mode.
Can introduce dropping equipment being used to produce suitable voltage in described lighting device, described suitable voltage is by rectification and be used for described energy accumulating device and charge.
Described lighting device can provide with various forms.In this preferred consideration on the one hand is following at least:
1. this device should be cheap;
2. this device should be little and inconspicuous, and should merge ideally or introduce in electric or miscellaneous equipment standard or traditional; And
3. when being activated, this device should be luminous in the long relatively time, should be several hrs on the order of magnitude.Because this device is alternative fully as the conventional light source that breaks down not, thus not exigent light intensity rank, and on the contrary, as long as the low level lighting level in case of emergency is provided.
Under a kind of form of the present invention, described lighting device is suitable for being complementary with socket.This can be single or multitapped socket.For making this device effective, described socket is connected directly under main power source or the alternate manner can be connected to described main power source by a switch.In the example of back, described switch will be preferably in the top mode of having described by the capacitor bridge joint.
Described lighting device can integrally be included in top cover or the lid that is used for plug, and described top cover or lid automatically make the circuit of described lighting device be electrically connected with power supply when being meshed with the pedestal of described plug.
In a kind of optimal way of the present invention, described lighting device is the form of plug, and described contact point comprises respectively or be electrically connected to pin, and described pin stretches out from described body and is used for the jack corresponding with electrical socket and is meshed.
Described body can be formed for the body of described plug, and can comprise pedestal and the top cover that pin is installed, and described top cover can be transparent to small part, and it is for being meshed with described pedestal removedly.For example, described top cover preferably holds the element of this electric device.
Described plug can comprise that connector is used to connect described pin to electric lead-this will allow described plug to be used as traditional plug with to power devices.
In another preferred embodiment, described lighting device is attached on the top cover of light switch socket.
Description of drawings
The present invention is by being described further by way of example with reference to the accompanying drawings, wherein:
Fig. 1 shows the physical arrangement schematic diagram according to the lighting device of a kind of form of the present invention;
Fig. 2 shows a kind of electrical circuit diagram in the described lighting device shown in Figure 1;
Fig. 3 shows a kind of improved circuit diagram;
Fig. 4 and Fig. 5 are the enlarged diagrams of a kind of improved form of the described lighting device shown in Fig. 1;
Fig. 6 is the pedestal of the described lighting device in Fig. 4 and Fig. 5 and the plane of top cover;
Fig. 7 is the side view in the cross section of described lighting device when assembling among Fig. 4,5,6; And
Fig. 8 and Fig. 9 have shown other form of the present invention.
The specific embodiment
Accompanying drawing 1 shows according to lighting device 10 of the present invention, and it comprises plug 12 and lighting circuit 14.Described plug is traditional basically.Described plug comprises that described top cover or cover 18 can adopt any similar techniques well known in the prior art and pedestal to mesh removedly by pedestal 16 and top cover or cover 18 formed bodies.Usually, described pedestal 16 and top cover 18 be in shape for leg-of-mutton (only this situation is illustrated), and be engaged with each other when forming the body of described socket when these parts, and they limit a described intrinsic volume.At least be that described top cover 18 adopts transparent or semitransparent material to make.
Three electrode terminals or the contact point that are formed by conductive base pin are installed in the downside of described pedestal and extend this downside.These terminals comprise a grounding pin 22, a charged pin 24 and a neutral pin 26.
Small wall is extended around the periphery of described pedestal, and opening 32 is formed in about centre position of the wall between described pin 24 and 26.When plug used, the electric lead 34 that extends out from the external equipment (not shown) passed described opening, and was connected to described charged pin 24 and described neutral pin 26 respectively.Under many circumstances, unshowned earth connection is connected to described grounding pin 22.Described lighting circuit 14 is connected between described charged pin 24 and the described neutral pin 26, and it comprises little printed circuit board (PCB) 40 and a plurality of electricity component that is installed on the described circuit board, as shown in Figure 2.
The voltage that sends lower powered relatively light emitting diode 48, the bridge rectifier circuit 50 of ruddiness when described lighting circuit 14 sends white light when comprising the long-life rechargeable battery of small low-voltage (for example Ni-MH battery) 42, transistor 44, energising efficient LED 46, energising and also be used as constant-current source reduces circuit 52.Described circuit 14 has the contact 54 and 56 that is connected to described pin 24 and 26 respectively.
If apply electrical power to described pin 24 and 26, if promptly described plug is inserted in the electrical socket, so preferably the device that is connected to described plug by electric lead then can be worked.
Supply voltage is reduced effectively by described circuit 52, and the described voltage that is reduced is applied to described bridge rectifier 50.The little electric current that numerical value is determined by resistor 60,62 and capacitor 64 will flow to described battery 42 and come described battery is charged.Described electric current flows through described light emitting diode 48 and energy is provided for the device that sends other ruddiness of low intensity level.This diode is forward biased, and described transistorized base-emitter knot is back-biased.Described transistor thereby remain on off state automatically.There is not electric current to flow through described light emitting diode 46 to described transistorized colelctor electrode.
If no matter which kind of is former thereby make power interruptions or fault will not have electric current to flow into described circuit through contact point 54 and 56 so.Preexist will be removed in the reverse biased of described transistorized base-emitter knot.Capacitor 66 is charged to the numerical value that resistance value determined by its capacitance and resistor 68, and described transistor is by forward bias and be switched on.The circuit described efficient LED 46 of flowing through subsequently.Therefore, after the power supply that is connected to described electrode terminal was interrupted, described diode 46 almost was provided energy immediately.What this diode sent only crosses described transparent cap 18 significantly and by transmission.According to the size of described battery 42, the efficient and the characteristic of described diode 46, time that will luminous lasting several hrs.Enough allow the user to find the road easily in the dark by the formed illumination intensity of described diode.Further, if described plug is removed from socket, described plug can be used as portable light source.
If power supply is resumed to described electrode terminal, so described light emitting diode 46 also is turned off when described transistor turn-offs, and described light emitting diode 48 is provided energy powering and indicating described battery 42 just to be charged once more with the indication power supply again.
It also is feasible introducing P cock 70 between described battery and described emitter stage.This switch be user-operable and can be used to when non-transformer offers described circuit 14 conducting on request or turn-off described transistor 44, and therefore make described light emitting diode 46 also conducting or shutoff.This switch can be arranged in a position easily, for example in a side of described wall 30, referring to Fig. 1.
Described resistor 68 can be that a kind of its resistance value relies on device with the light that ambient lighting changes.This resistor is positioned so that it be not exposed to the light that described diode 46 is sent.If the generation power failure, and when the rank of ambient lighting enough high, then described transistor 44 is held off state.This transistor only is switched on when existing power failure and ambient lighting rank to descend.This function will help to make makes the effective time period of light maximize according to battery.
The circuit 74 that Fig. 3 shows is a kind of distortion of circuit shown in Figure 2.The element that has same reference number among element among Fig. 3 and Fig. 2 is identical.Only the difference in described two kinds of circuit is made an explanation.
Described contact point 54 and 56 connected in series at power supply to the conductor 78 of electric light 80.Described conductor has by the tandem tap 82 of capacitor 84 bridge joints.If this switch 82 is opened, the little electric current described capacitor of flowing through.This electric current is carried out rectification and is used to described battery 42 is charged by described bridge rectifier 52.Described electric current does not have discernible influence to described lamp 80.If described switch 82 is closed, described charging process will take place.Yet,, will not have electric current to flow into described circuit 74 so if no matter which kind of is former thereby described power supply is interrupted or breaks down.The reverse biased that the base-emitter of described transistor 44 is tied will be eliminated, and this transistor is by forward bias and be switched on.The efficient LED 46 that electric current is flowed through subsequently and is provided energy.Described circuit thereby carry out work in the mode that is similar to described circuit 14.
Described switch 82 and described capacitor 84 are included in the body of this device so that integrated unit is provided, perhaps can be by separated.The body of described lighting device is represented by a dot-dash wire frame 90, preferably is made up of the shell of conventional electric power mechanism, for example socket, light switch or other similar means.This method allow lighting device can a kind of inconspicuous mode, lower cost, provide in the place that power equipment is used, and therefore, power supply effectively and can be used for battery is charged, thereby need not further cost.
The little switch of user-operable can be connected and come conducting as requested between described battery and the described emitter stage or turn-off described transistor and therefore conducting or turn-off described light emitting diode 46.
Photo-resistor or like can be used on the described lighting device and only are switched on when the decline of power failure and ambient lighting rank takes place so that guarantee described transistor.
Fig. 4 and Fig. 5 are the exploded views of lighting device 10A, and it is a kind of modification of scheme shown in Figure 1.Fig. 6 is the pedestal of described device and the plane of top cover, the cross sectional side view of this device when Fig. 7 then is assembling.
Described lighting device 10 has the pedestal 16 that lighting circuit 14 is installed.By contrast, described lighting device 10A has and is actually traditional pedestal 16.Described lighting circuit (called after 14A) is not fixed to described pedestal, but is fixed to the top cover of called after 18A.
Described top cover is made by transparent plastic material, and has the cross sectional shape that is essentially traditional.Yet in order to hold described circuit 14A, this top cover has the degree of depth of increase, called after 100.Two narrow columns 102 and 104 extend upward from the planar end plate 106 of this top cover respectively.The cross section of these columns is X-shapes.
Described circuit 14A is installed on the printed circuit board (PCB) 40A, and described circuit board is designed to and adjacent column 102 and 104 fits.Lead 108 and 110 exposes and corresponds respectively to the contact point 54 and 56 described in Fig. 2.
In the time of in described circuit 14A is inserted into into described top cover, the front end of described circuit board 40A rests on the inner surface of described end plate 106.Described lead 108 and 110 is shaped as the end that covers described column 102 and 104.Fixed head 114 meshes with described top cover subsequently.Described fixed head is shaped as and fits snugly in the described top cover, and has two holes 116 and 118, and described column 102 and 104 extends out by described hole respectively.The 3rd hole 120 on the described fixed head provides passage for the fixedly tubular structure 122 on the inner surface of described end plate 106.The 4th hole 122 allows tubular pin 126 to be positioned in an end that is close to ground terminal 22A.
Described lighting device 10A thereby form by plug 12A and the described lighting circuit 14A that is completely contained in the described top cover 18A.Described plug 12A is essentially traditional, and the electric lead (not shown) can be connected on described grounding pin 22A, charged pin 24A and the neutral pin 26A by traditional approach.When described top cover and the engagement of described pedestal, described lead 108 and 110 automatically electrically contacts with described opposite end charged and neutral pin.Described plug 12A uses with normal mode, and described lighting device can separate with described plug engagement or with described plug as required, to be electrically connected with the pin of described plug according to traditional approach.In this process, described lighting device is also disturbed never in any form.In case during the engagement of described top cover and described pedestal, trip bolt 128 passes the centre bore 130 on the described pedestal 16 and is meshed with the boring 122 of described structure so that keep described top cover be meshed with described pedestal (referring to Fig. 7).
Fig. 8 has shown another embodiment of the present invention.In this case, lighting device 10B is suitable for being fixed on the cover plate 140 of light switch.Described cover plate has the hole 142 that is used for electric switch 144.
Three apertures 146,148,150 pass described cover plate and are formed on the appropriate location.Usually the lighting device 10B of kind has transparent shell 156 as described above, and it contains the circuit that is similar to circuit shown in Figure 3.If neutral conductor is to be present on the described light switch, described circuit can be similar to circuit shown in Figure 2.Two leads 170 and 172 extend out and pass centre bore 148 the described cover plate from described shell.
Described shell has two flexible clips, and it is meshed by elastic reaction with described hole 146 and 150 respectively.When engagement, described shell is fixed on the outer surface of described cover plate safely.Described lead is crossed over described switch 144 in mode shown in Figure 3 and is connected.
If generation power failure, device shown in Figure 8 can work according to same way as previously described, and the battery that is recharged when power supply does not interrupt in the described lighting circuit is automatically connected so that power for passing the luminous light emitting diode of described housing 156 or the light-emitting devices of other efficiently low light emission level.
When building is connected up, but the improvement of equipment existing equipment shown in Figure 8 perhaps also can be used as new equipment and is provided.It will be very easily that the described lighting device that links to each other with cover plate is provided, thereby can be provided for the light switch of Emergency Light with low relatively one-tenth originally.
Fig. 9 has shown lighting apparatus 10C, and it is similar to device shown in Figure 8, provides on the cover plate 174 of socket.Described equipment has the circuit of type shown in Figure 2, and it is connected to the live wire and the neutral conductor that is positioned at supply socket.
Described lighting device can adopt different forms, for example:
(a) as the illumination box, it is connected to and is adapted to before the inlet wire light switch of common type on lobby lamp or the bedside lamp;
(b) as little adapter, it adapts to places in the standard light fixture, for example between ceiling light, described lamp and the light fixture; When power supply broke down, LED was provided energy, and it will also illuminate immediate zone when it is installed into eminence.
(c) be positioned at little plastic casing on the end that is clipped in the multitap adapter.In this mode, described adapter will be lighted (illuminated) when power failure.All elements of described device can be contained in the described shell, and this shell can be partly or integrally adopted limpid or transparent plastic material is made, and are used to protect described element and are used to allow the transmission of described light emitting diode issued light by this material; And,
(d) described device can be introduced in the electrical socket that is installed to wall, and it has the diode 46 that extends to the cover plate of described socket to small part, or introduces after the transparent window of described cover plate.
Owing to provide little and had lighting device cramped construction, efficient and relatively cheap, under various forms, the present invention all has specific benefits.Described lighting device is introduced in or the body that otherwise is associated can adopt various styles and outward appearance.The one side of particular importance is, provides and conventional electric power equipment for example socket, plug, light switch or the similar ability of the described lighting device that combines of equipment.Because the low cost of described lighting device, for house, factory, hospital or similar place of using a large amount of these devices, it is feasible, and each installs all in conjunction with described circuit.All light sources will automatically be energized when main power source breaks down.
Claims (22)
1, a kind of lighting device comprises:
The body that has at least two contact points;
Energy storing device, it is connected with described contact point and is used for storage of electrical energy when described contact point is connected to power supply;
First light source; And
Switching device, it is in response to the disconnection of power supply and described contact point and switch to then described first light source is connected to described energy accumulating device.
2, lighting device according to claim 1, wherein said energy accumulating device are long-life low-voltage miniature batteries.
3, lighting device according to claim 1, it comprises rectifier, is used to produce DC current and thinks that described energy storing device charges.
4, lighting device according to claim 1, wherein said switching device switches between first pattern and second pattern automatically, and described first light source disconnects with described energy storing device when described contact point is connected to described power supply in described first pattern; Described first light source is connected to described energy accumulating device when described power supply is not connected with described first and second contact points in described second pattern.
5, lighting device according to claim 1, wherein said body are configured as one of the following: the body of light switch; The shell of electrical socket; The body of plug.
6, lighting device according to claim 1, wherein said body are configured to be used for the top cover of the pedestal of electrical socket, and described energy storage device, described first light source and switching device are positioned at described top cover.
7, lighting device according to claim 1 wherein is that described energy accumulating device and described switching device are carried on the printed circuit board (PCB) that is installed on the described body at least.
8, lighting device according to claim 7, wherein two leads extend out and constitute two contact points respectively from described printed circuit board (PCB).
9, lighting device according to claim 1, wherein at least a portion of body is transparent in to allow passing described body from the light of described first light source that is energized, perhaps described first light source is oriented to the outside that its part is in described body.
10, lighting device according to claim 1, wherein said switching device comprises semiconductor device, it is turned off when described energy accumulating device just is being recharged, and it is switched on when power supply is turned off automatically.
11, lighting device according to claim 1, it comprises secondary light source, it is energized when described energy accumulating device is recharged, and it is not energized when described first light source is connected to described energy accumulating device.
12, lighting device according to claim 1, it comprises that voltage reduces device, it produces the voltage less than supply voltage, and this voltage is by rectification be used to described energy accumulating device to charge.
13, lighting device according to claim 1, wherein said body is formed at least a portion of the body of plug and described contact point, comprise or be electrically connected to, be used for being meshed with the corresponding jack of electrical socket from the extended corresponding pin of described body.
14, lighting device according to claim 1, wherein said body is formed for the shell of described energy accumulating device, described first light source and described switching device, and described housing is safe to the outer surface of electrical equipment.
15, lighting device according to claim 14, wherein said electrical equipment are switch or electrical socket.
16, lighting device according to claim 1, it comprises one of the following at least:
(a) optical sensor, it is used for preventing that described first light source is energized when the ambient lighting rank is good; And
(b) be used to control the switch that is connected of described first light source and described energy storing device.
17, lighting device according to claim 1, wherein said first light source is a semiconductor device.
18, lighting device according to claim 1, wherein said body is installed in the outer surface of the top cover of switch or socket.
19, a kind of lighting device comprises:
Plug with body, this body has at least two pins, and described pin extends so that mesh with corresponding jack the electrical socket from described body; And
Circuit, it comprise link to each other with described pin and when described pin is connected power supply the energy storing device of storage of electrical energy;
First light source; And,
Switching device, its in response to described pin with the disconnection of power supply and switch then so that described light source is connected with described energy storing device.
20, lighting device according to claim 19, wherein said body comprises pedestal and transparent cap, is furnished with described energy storing device, first light source and switching device in the described transparent cap.
21, lighting device according to claim 19, wherein said pin comprise and are used for the structure that is meshed with the outer electric lead that stretches.
22, lighting device according to claim 21, wherein said pedestal are meshed with described top cover so that described pin and described circuit are electrically contacted.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA200600784 | 2006-01-27 | ||
| ZA2006/00784 | 2006-01-27 | ||
| ZA2006/9193 | 2006-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101410669A true CN101410669A (en) | 2009-04-15 |
Family
ID=40572790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200780011486 Pending CN101410669A (en) | 2006-01-27 | 2007-01-24 | Lighting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101410669A (en) |
| ZA (1) | ZA200806471B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102460008A (en) * | 2009-06-17 | 2012-05-16 | 皇家飞利浦电子股份有限公司 | Illumination device comprising an internal power source and an interface for connecting the illumination device to an external power supply |
-
2007
- 2007-01-24 CN CN 200780011486 patent/CN101410669A/en active Pending
-
2008
- 2008-07-24 ZA ZA200806471A patent/ZA200806471B/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102460008A (en) * | 2009-06-17 | 2012-05-16 | 皇家飞利浦电子股份有限公司 | Illumination device comprising an internal power source and an interface for connecting the illumination device to an external power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200806471B (en) | 2009-04-29 |
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Open date: 20090415 |