A kind of control system regulating brightness and G9LED bulb thereof
Technical field
This utility model relates to lamp brightness control field, particularly relates to a kind of control system and G9LED bulb thereof being carried out brightness regulation by bulb switch.
Background technology
G9 type bulb is a kind of stitch type bulb, and this bulb is commonly used on the light fixtures such as modern European crystal pendant lamp.Traditional G9 lamp bulb is all to use halogen lamp as luminous source, uses this halogen lamp general mostly at 25-75W as the G9 lamp bulb power of luminous source, and power consumption is big, and service life is short.Although the more common electric filament lamp of the luminous efficiency of G9 halogen lamp is slightly higher, but it belongs to the electric filament lamp category of high energy consumption.Along with the execution of disabling electric filament lamp route map, G9 halogen lamp will be eliminated.Along with the development of LED technology, Novel LED light becomes, with its environmental protection and long service life, the best succedaneum that bulb is energy-conservation, and therefore, substituting G9 halogen lamp with G9LED bulb is inevitable trend.
Under normal circumstances, G9LED bulb is little due to volume, and the mode of driving uses resistance-capacitance depressurization to add the mode of constant current more mostly, and the defect of this type of drive is to use dimmer for light control, and switch more can not be used to dim.
Owing to G9 lamp bulb is to use on the light fixtures such as crystal pendant lamp in a large number, it it is a kind of subminiature bulb.So, the tunable optical of G9LED bulb to be realized must meet two essential conditions:
1. must use the driving chip that can dim, thus realize dimming function;
2. need to use the LED lamp bead of high pressure, be reduced as far as the area of PCB (Printed Circuit Board), just can be allowed to load bulb.
Further, LED bulb being replaced halogen lamp, the heat dissipation problem of LED chip also becomes the key that bulb quality changes well, if poor heat radiation can significantly shorten the service life of light fixture.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of control system regulating brightness and G9LED bulb thereof, cannot be in the less problem spatially realizing brightness regulation for solving G9LED bulb in prior art.
For achieving the above object and other relevant purposes, this utility model provides a kind of control system regulating brightness, it is applied to G9LED bulb, described G9LED bulb includes lamp body and LED light source, described lamp body includes that G9 lamp holder and PCB, described G9 lamp holder are connected to form current loop with the electrode of described PCB, and described control system is connected with described LED light source, and common arrangement is arranged in described PCB, described control system includes rectification module, division module and control module;First side of described rectification module is connected with described G9 lamp holder by described PCB, second side is connected with described division module, described LED light source and described control module, for providing power supply for described division module, described control module and described LED light source;Described division module is connected between the both positive and negative polarity of the second side of described rectification module, and according to user's control to the switch of described G9LED bulb, by the power switch signal that outfan is described control module output correspondence;First port of described control module is connected with the negative pole of the second side of described rectification module;Second port is connected with the negative pole of described LED light source, and the positive pole of described LED light source is connected with the positive pole of the second side of described rectification module;3rd port is connected with the outfan of described division module;Being preset with multiple different driving electric current in described control module, the number of times of the described power switch signal exported according to described division module is that described LED light source provides corresponding driving electric current.
In an embodiment of the present utility model, the minus earth of the second side of the described rectification module of described control system.
In an embodiment of the present utility model, described division module includes that the second resistance and the 4th resistance, one end of described second resistance are connected with the positive pole of the second side of described rectification module, and the other end is connected with one end of described 4th resistance;The other end of described 4th resistance is directly grounded;And the outfan of described division module is between described second resistance and described 4th resistance, described power switch signal exports to described control module from its outfan.
In an embodiment of the present utility model, described control module includes 2 resistance, 4 electric capacity, 1 diode and the driving chip of 1;Wherein, in described driving chip, it is preset with multiple different driving electric current, for selecting corresponding driving electric current to be supplied to described LED light source according to described power switch signal;Described driving chip includes 8 pins, and the first pin is directly grounded;Second pin passes through the second capacity earth;Three-prong passes through described diode and the 4th capacity earth;Described 4th pin is connected with the outfan of described division module and one end of the 3rd electric capacity respectively, and the other end of described 3rd electric capacity is directly grounded;5th pin passes through the 3rd resistance eutral grounding;6th pin passes through described 4th capacity earth;7th pin is connected with the positive pole of the second side of described rectification module by described LED light source;8th pin is connected with one end of the first electric capacity and one end of the first resistance respectively;The other end ground connection of described first electric capacity;The other end of described first resistance is connected with the positive pole of the second side of described rectification module.
In an embodiment of the present utility model, described LED light source includes at least one LED lamp bead;And described LED light source is when being multiple LED lamp bead, multiple LED lamp bead use series system to link together.
The invention also discloses a kind of G9LED bulb, including lamp body and LED light source, described lamp body includes that G9 lamp holder and PCB, described G9 lamp holder are connected to form current loop with the electrode of described PCB, and described G9LED bulb also includes control system;Described control system is connected with described LED light source, and common arrangement is installed in described PCB;It is preset with multiple different driving electric current in described control system, is that described LED light source selects corresponding driving electric current to realize the brightness regulation to described LED light source by controlling the number of times of the switch of described G9LED bulb.
In an embodiment of the present utility model, described control system includes rectification module, division module and control module;First side of described rectification module is connected with described G9 lamp holder by described PCB, second side is connected with described division module, described LED light source and described control module, for providing power supply for described division module, described control module and described LED light source;Described division module is connected between the both positive and negative polarity of the second side of described rectification module, and according to user's control to the switch of described G9LED bulb, by the power switch signal that outfan is described control module output correspondence;First port of described control module is connected with the negative pole of the second side of described rectification module;Second port is connected with the negative pole of described LED light source, and the positive pole of described LED light source is connected with the positive pole of the second side of described rectification module;3rd port is connected with the outfan of described division module;Being preset with multiple different driving electric current in described control module, the number of times of the described power switch signal exported according to described division module is that described LED light source provides corresponding driving electric current.
In an embodiment of the present utility model, described PCB uses double-face aluminium substrate;Described control system and the arrangement of described LED light source are arranged on the two sides of described double-face aluminium substrate.
In an embodiment of the present utility model, described PCB includes LED board, rebound and two-sided driving component palette;The arrangement of described LED light source is arranged on described LED board;The arrangement of described control system is arranged on described driving component palette;Described LED board and described driving component palette are linked together by described rebound.
In an embodiment of the present utility model, described G9LED bulb also includes cooling lamp holder and covers on outward described lamp body upper lamp shade, and wherein, described cooling lamp holder is connected between described PCB and described G9 lamp holder;Described lampshade is integral type or split type.
As it has been described above, a kind of control system regulating brightness of the present utility model and G9LED bulb thereof, by controlling the on and off switch number of times of G9LED bulb, thus realize the brightness regulation of the LED light source to G9LED bulb.G9 LED bulb of the present utility model light modulation is convenient, and overall volume is little, compact conformation, and heat dispersion is good, lighter in weight.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of a kind of control system regulating brightness disclosed in this utility model embodiment.
Fig. 2 is shown as the circuit connecting relation figure of a kind of control system regulating brightness disclosed in this utility model embodiment.
Fig. 3 is shown as the installation diagram of the structure of a kind of G9LED bulb disclosed in this utility model embodiment.
Fig. 4 is shown as the device arrangement schematic diagram of the another side of the PCB of the G9LED bulb shown in Fig. 3.
Fig. 5 is shown as the installation diagram of the structure of a kind of G9LED bulb disclosed in another embodiment of this utility model.
Element numbers explanation
110 rectification modules
120 division module
130 control modules
200 LED light sources
310 G9 lamp holders
320 PCB
321 LED boards
322 rebounds
323 drive component palette
330 lampshades
331 left lampshades
332 right lampshades
340 cooling lamp holders
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model being described below, those skilled in the art can be understood other advantages of the present utility model and effect easily by the content disclosed by this specification.
Refer to Fig. 1 to Fig. 5.Notice, structure depicted in this specification institute accompanying drawings, ratio, size etc., the most only in order to coordinate the content disclosed in description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still fall in the range of the technology contents disclosed in this utility model obtains and can contain.Simultaneously, in this specification cited as " on ", D score, "left", "right", the term of " middle " and " " etc., it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of this utility model, being altered or modified of its relativeness, changing under technology contents without essence, when being also considered as the enforceable category of this utility model.
This utility model provides a kind of control system regulating brightness and G9LED bulb thereof, and it increases control system at G9LED bulb, by controlling the number of times of the switch of G9LED bulb, completes the brightness regulation to G9LED bulb.
Embodiment 1
Present embodiment discloses the control system of a kind of regulation brightness being applied to G9LED bulb.Wherein, G9LED bulb includes lamp body and LED light source.Lamp body includes G9 lamp holder and PCB.G9 lamp holder is connected with the electrode of PCB, forms current loop.
Control system connects and is connected with LED light source, and common arrangement is arranged in described PCB.
The brightness of LED light source is to be determined by the size driving electric current of LED chip.Therefore, the present embodiment uses the method driving electric current of regulation LED light source to realize the regulation of brightness.The control system of the present embodiment, according to the needs of client, pre-sets multiple different driving electric current, and according to the on-off times of control G9LED bulb, control system is that LED light source provides corresponding driving electric current, thus realizes the regulation of the brightness to LED light source.
Such as, in control system, preset two drive electric current: first drives electric current and second to drive electric current, drives under electric current first, and the brightness of LED light source is 100%;Driving under electric current second, the brightness of LED light source is 5%.When first switching on the switch of G9LED bulb, control system provides the first driving electric current, i.e. LED light source brightness to be now 100% brightness under the first driving electric current for LED light source;When after closing switch, second time opens the switch of G9LED bulb, the driving electric current of LED light source is replaced by the second driving electric current by control system, and now, the brightness of LED light source is 5% brightness under the second driving electric current.So repeat the switch of G9LED bulb is controlled, it is achieved that the brightness regulation of the LED light source of G9LED bulb.
Certainly, the driving electric current preset in control system is not limited in two, can be multiple.Such as, control system is preset three and is driven electric current, is respectively as follows: the first driving electric current, the second driving electric current and the 3rd driving electric current, and the brightness of its LED light source corresponding respectively is 100%, 50% and 10%.When first switching on the switch of G9LED bulb, control system provides the first driving electric current, i.e. LED light source brightness to be now 100% brightness under the first driving electric current for LED light source;When after closing switch, second time opens the switch of G9LED bulb, the driving electric current of LED light source is replaced by the second driving electric current by control system, and now, the brightness of LED light source is 50% brightness under the second driving electric current;When after closing switch, third time opens the switch of G9LED bulb, the driving electric current of LED light source is replaced by the 3rd driving electric current by control system, and now, the brightness of LED light source is the 3rd 10% brightness driving under electric current.So repeat, thus realize the brightness regulation of the LED light source to G9LED bulb.
Further, the order that arranges driving electric current preset in control system is the most not necessarily set according to the order of the brightness increment of LED light source, and it can be set according to actual needs.Such as, presetting three and drive electric current in control system, be respectively as follows: the first driving electric current, the second driving electric current and the 3rd driving electric current, the brightness of its LED light source corresponding respectively is 10%, 50% and 100%.When first switching on the switch of G9LED bulb, control system provides the first driving electric current, i.e. LED light source brightness to be now 10% brightness under the first driving electric current for LED light source;When after closing switch, second time opens the switch of G9LED bulb, the driving electric current of LED light source is replaced by the second driving electric current by control system, and now, the brightness of LED light source is 50% brightness under the second driving electric current;When after closing switch, third time opens the switch of G9LED bulb, the driving electric current of LED light source is replaced by the 3rd driving electric current by control system, and now, the brightness of LED light source is the 3rd 100% brightness driving under electric current.
The brightness regulation of LED light source is based on the requirement in client, also may be designed as n level or within certain time period continuous light tuning.The change of light modulation can be designed as from the brightest (100%) light modulation to minimum (1%)--just as the sun sets, referred to as " sunset version ";The change of light modulation is also designed to from minimum (1%) light modulation to maximum (100%)--just as sunrise, referred to as " day publication ".
Protection domain of the present utility model is not limited in both and controls the implementation of LED light source brightness by controlling the on-off times selection driving electric current of G9LED bulb, as long as by the way of controlling the switch of G9LED bulb and selecting driving electric current thus control LED light source brightness all in protection domain of the present utility model.
As it is shown in figure 1, the control system of the G9LED bulb of the present embodiment includes rectification module 110, division module 120 and control module 130.First side of rectification module 110 is connected (not identifying in accompanying drawing) by PCB with G9 lamp holder, second side is connected with division module 120, control module 130 and LED light source 200, for providing power supply for division module 120, control module 130 and LED light source 200.
Division module 120 is connected between the both positive and negative polarity of the second side of rectification module 110, and according to user's control to the switch of G9LED bulb, is the power switch signal that control module 130 exports correspondence by outfan.
130 first ports of control module are connected with the negative pole of the second side of rectification module 110;Second port is connected with the negative pole of LED light source 200;3rd port is connected with the outfan of division module 120.Further, the positive pole of LED light source 200 is connected with the positive pole of the second side of rectification module 110.
Multiple different driving electric current it is preset with, the driving electric current being LED light source offer correspondence according to the number of times of the power switch signal of division module 120 output in control module.
The most as shown in Figure 4, the negative pole of the second side of the rectification module 110 of the control system of the present embodiment is directly grounded.
Division module 120 includes the second resistance R2 and the 4th resistance R4;One end of second resistance R2 is connected with the positive pole of the second side of rectification module 110, and one end of the other end and the 4th resistance R4 connects;The other end of the 4th resistance R4 is directly grounded.Further, drawing an outfan between the second resistance R2 and the 4th resistance R4, this outfan is connected with control module 130, for providing power switch signal for control module 130.
Control module 130 is made up of the driving chip U1 of 2 resistance, 4 electric capacity, 1 diode D1 and 1.Multiple different driving electric current it is preset with, for selecting corresponding driving electric current to be supplied to LED light source 200 according to power switch signal in driving chip U1.
Further, driving chip U1 be one by MCU (Micro Control Unit, micro-control unit are called for short single-chip microcomputer) and the circuit of analog circuit hybrid integrated, wherein, analog circuit includes light adjusting circuit and metal-oxide-semiconductor etc..The driving chip U1 of the present embodiment has 8 pins:
First pin GND, for ground pin;
Second pin LV, the low-tension supply provided for driving chip U1 internal circuit, each circuit for chip internal uses;
Three-prong GATE, provides additional gate voltage for driving chip U1, makes the metal-oxide-semiconductor of chip internal obtain bigger driving electric current;
4th pin PCR (Power Compensation Ratio), obtains switch triggering signal, thus obtains different power ratios at outfan;
5th pin RS, its over the ground between connect resistance, the electric current of LED light source is set;
6th pin VDD, the light adjusting circuit within driving chip U1 provides power supply;
7th pin DS, for the drain electrode of metal-oxide-semiconductor, is used for being connected with the negative pole of LED light source;
8th pin VIN, the input of external power source.
Wherein, the first pin GND is directly grounded.Second pin LV passes through the second electric capacity C2 ground connection.Three-prong GATE passes through diode D1 and the 4th electric capacity C4 ground connection.4th pin PCR is connected with the outfan of division module 120 and one end of the 3rd electric capacity C3 respectively, and the other end of the 3rd electric capacity C3 is directly grounded.5th pin RS passes through the 3rd resistance R3 ground connection.6th pin VDD passes through the 4th electric capacity C4 ground connection.7th pin DS is connected with the positive pole of the second side of rectification module 110 by LED light source 200.8th pin VIN is connected with one end of the first electric capacity C1 and one end of the first resistance R1 respectively, and the other end of the first electric capacity C1 is directly grounded;The other end of the first resistance R1 is connected with the positive pole of the second side of rectification module 110.
Wherein, the power switch signal obtained after the second resistance R2 and the 4th resistance R4 dividing potential drop, export the 4th pin PCR end to driving chip U1;Power switch signal triggers the electronic dimming circuit within driving chip U1, and this light adjusting circuit is by circuit compositions such as switching signal testing circuit and MCU and PWM (Pulse Width Modulation, pulse width modulation).Analog circuit is controlled by the numeral output utilizing single-chip microcomputer, is allowed to pulse width variations;The pulse width signal of change drives output circuit, makes the outfan of driving chip U1, the driving electric current driving LED light source 200 corresponding to the i.e. the 7th pin DS out-put supply switching signal, thus realizes the brightness regulation of G9LED bulb.
The requirement of light regulation that driving chip U1 foundation client is different to bulb, in advance at its memorizer ROM (Read only Memory, read only memory) in programmed, memorizer ROM is directly made MASK (mask), when large-scale production to reduce cost.
Further, in the present embodiment, LED light source 200 both can use one or more LED lamp bead.The forward voltage that the selection of LED light source 200 is based on LED light source 200 is determined.When LED light source 200 is multiple LED lamp bead, multiple LED lamp bead use the mode of series connection to link together.Further, LED light source can with use alternating voltage configure.
According to control system as shown in Figure 2, being not difficult to find out, the electronic devices and components that the control system of the present embodiment is used are considerably less, only 10.Less electronic devices and components are advantageously installed in control system arrangement in PCB.
Additionally, in order to highlight innovative part of the present utility model, the module the closest with the technical problem relation that solution this utility model is proposed is not introduced by the present embodiment, but this is not intended that in the present embodiment the module that there is not other.
Embodiment 2
Present embodiment discloses a kind of G9LED bulb that can regulate brightness.
As it is shown on figure 3, the G9LED bulb of the present embodiment includes lamp body, LED light source 200 and control system.Wherein, lamp body includes G9 lamp holder 310 and PCB 320.G9 lamp holder 310 is connected with the electrode of PCB 320, forms current loop.
LED light source 200 and control system link together, and arrangement is arranged in PCB 320 according to actual needs.
It is preset with multiple different driving electric current in control system, is the driving electric current that LED light source 200 selects correspondence by controlling the on-off times of G9LED bulb, to realize brightness regulation.
Wherein, control system includes rectification module, division module and control module.Rectification module is for providing power supply for division module, control module and LED light source;Division module is for according to user's control to the switch of G9LED bulb, providing corresponding power switch signal for control module;Control module is used for the number of times of the power switch signal according to division module offer provides the driving electric current of correspondence for LED light source 200.Specifically, control system uses the circuit shown in Fig. 2 in embodiment 1, does not repeats them here.
The G9LED bulb that can regulate brightness disclosed in the present embodiment is a kind of lower-powered bulb (power is less than or equal to 3.5W), and the arrangement of its lamp body, LED light source 200 and control system is as shown in Figure 3.
The PCB 310 of the lamp body of the G9LED bulb of the present embodiment uses double-face aluminium substrate, electronic devices and components (the resistance R1-R4 of LED light source 200 and control system, electric capacity C1-C4, diode D1, rectification module 110 and driving chip U1) rationally being arranged is arranged on the two sides of PCB 320.As it is shown on figure 3, electric capacity C1, electric capacity C2, electric capacity C4, diode D1 and LED light source 200 arrangement are arranged on the one side of PCB 320;As shown in Figure 4, resistance R1-R4, rectification module 110, driving chip U1 and LED light source 200 arrangement are arranged on the another side of PCB 320.
Further, the G9LED bulb of the present embodiment also includes a split type lampshade, including left lampshade 331 and right lampshade 332.Left lampshade 331 and right lampshade 332 are by covering on the outside of whole G9LED bulb outside G9 lamp holder 310.
Embodiment 3
Present embodiment discloses a kind of G9LED bulb that can regulate brightness.
As it is shown in figure 5, the G9LED bulb of the present embodiment includes lamp body, LED light source 200 and control system.Wherein, lamp body includes G9 lamp holder 310 and PCB 320.G9 lamp holder 310 is connected with the electrode of PCB 320, forms current loop.
LED light source 200 and control system link together, and arrangement is arranged in PCB 320 according to actual needs.
It is preset with multiple different driving electric current in control system, is the driving electric current that LED light source 200 selects correspondence by controlling the on-off times of G9LED bulb, to realize brightness regulation.
Wherein, control system includes rectification module, division module and control module.Rectification module is for providing power supply for division module, control module and LED light source;Division module is for according to user's control to the switch of G9LED bulb, providing corresponding power switch signal for control module;Control module is used for the number of times of the power switch signal according to division module offer provides the driving electric current of correspondence for LED light source 200.Specifically, control system uses the circuit shown in Fig. 2 in embodiment 1, does not repeats them here.
The G9LED bulb that can regulate brightness disclosed in the present embodiment is the bulb (power prints 3.5W) that a kind of relative power is bigger.Owing to its power becomes big, the therefore problem of LED light source 200 to be taken into full account heat radiation in the overall arrangement of G9LED bulb.
The arrangement of the lamp body of G9LED bulb of the present embodiment, LED light source 200 and control system is as shown in Figure 5.The G9LED bulb of the present embodiment also includes a cooling lamp holder 340.Cooling lamp holder is connected between PCB 320 and G9 lamp holder 310.In the present embodiment, cooling lamp holder 340 uses Ceramic lamp base.
Further, the PCB 320 of the present embodiment includes LED board 321, rebound 322 and two-sided driving component palette 323;The corresponding arrangement of LED light source 200 is arranged on LED board 321;The corresponding arrangement of the electronic devices and components (resistance R1-R4, electric capacity C1-C4, diode D1, rectification module 110 and driving chip U1) of control system is arranged on the two sides driving component palette 323;LED board 321 and driving component palette 323 are linked together by rebound 322.
Further, the G9LED bulb of the present embodiment also includes the lampshade 330 of integral type, and lampshade 330 is by covering on the outside of whole G9LED bulb outside G9 lamp holder 310.
It should be noted that, diagram provided in embodiment of the present utility model illustrates basic conception of the present utility model the most in a schematic way, component count, shape and size when only showing the assembly relevant with this utility model rather than implement according to reality in the most graphic are drawn, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout kenel is likely to increasingly complex.
And it is seen that, first embodiment is corresponding embodiment with the second embodiment and the 3rd embodiment, and first embodiment can coordinate enforcement with the second embodiment and the 3rd embodiment.The relevant technical details mentioned in first embodiment is still effective in the second embodiment and the 3rd embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in the second embodiment and the 3rd embodiment is also applicable in first embodiment.
In sum, a kind of control system regulating brightness of the present utility model and G9LED bulb thereof, by controlling the number of times of the on and off switch of G9LED bulb, thus realize the brightness regulation of the LED light source to G9LED bulb.G9LED bulb of the present utility model light modulation is convenient, and overall volume is little, compact conformation, and heat dispersion is good, lighter in weight.So, this utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and effect thereof, not for limiting this utility model.Above-described embodiment all can be modified under spirit and the scope of the present utility model or change by any person skilled in the art.Therefore, art has all equivalence modification or changes that usually intellectual is completed under without departing from the spirit disclosed in this utility model and technological thought such as, must be contained by claim of the present utility model.