T5 changes the T8 conversion support
Technical field
The utility model relates to a kind of lamp bracket, relates in particular to a kind of T5 and changes the T8 conversion support.
Background technology
Existing fluorescent lamp has a variety of models, and as T12, T10, T8, T5, T4 etc., wherein the fluorescent tube length of T12, T10, T8 and pin be apart from being identical, and the fluorescent tube length of T5, T4 and pin be apart from the weak point than T8, and using maximum at present is fluorescent tube and the light fixture of T8.In theory, thin more fluorescent tube efficient is high more, that is to say that the thinner luminous efficiency of the fluorescent tube of equal-wattage is higher, and therefore, for energy-conservation consideration, the T5 fluorescent tube more and more is subjected to user's welcome.Because T5 fluorescent tube length and pin apart from the weak point than T8 fluorescent tube, therefore can't be installed the little fluorescent tube of T5 on the lamp socket of the big fluorescent tube of existing T8, if change original lamp socket, then will expend great amount of manpower and cost.In order to overcome this defective, fluorescent tube crossover sub and support have also appearred in the market, the two ends of T5 fluorescent tube can be contained on the fluorescent tube crossover sub, again the fluorescent tube crossover sub be directly installed on the lamp socket of original T8 fluorescent tube, not need to dismantle the lamp socket and the support of existing T8 fluorescent tube.But this fluorescent tube crossover sub and support are used to insert the direction that the plug post of T8 fluorescent tube lamp socket jack arranges can not be regulated, if the plug post and the orientation of T8 fluorescent tube lamp socket jack of this fluorescent tube crossover sub are inequality but orthogonal, then need to change the fluorescent tube crossover sub or the support of the orientation of other plug post, bring inconvenience to setter.And traditional tube lamp ballast mostly is the reactance ballast, and power consumption is easily generated heat, and noise is arranged, not environmental protection.
In sum: T5 of the prior art changes the T8 conversion support and exists that the orientation of plug post can not be regulated, the defective of not environmental protection of power consumption.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, easy to use, the orientation of plug post can be regulated, the T5 of the environmental protection of economizing on electricity changes the T8 conversion support.
The technical scheme that the utility model adopted is: the utility model comprises electric ballast, two conversion heads, two corresponding adaptive electrical connections of described conversion head with described electric ballast, described electric ballast is made up of circuit board and package casing, described conversion head comprises plug portion, socket part, described plug portion and described socket part are connected as one, described plug portion and T8 lamp socket are suitable, described socket part and T5 fluorescent tube are suitable, described plug portion comprises two plug posts, housing, brace, the power supply lead wire terminal, described socket part comprises pedestal, the socket core, described two plug posts are fixedly connected on described hull outside, described two plug posts are electrically connected with the power supply lead wire terminal by described brace, described socket core is arranged at the inside of described pedestal, described socket core comprises two binding posts, be provided with circumferentially uniform axial convex tendon of two edges in the described housing, the boss sidewall of described pedestal one side is provided with circumferentially uniform axial notch of four edges, the corresponding adaptive grafting with described groove of described convex tendon.
The circuit of described electric ballast comprises resistance R 1, R2, R3, R4, R5, R6, capacitor C 1, C2, C3, C4, C5, C6, C7, C8, crystal diode D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, DB3, transistor Q1, Q2, inductance L 1, L2-1, L2-2, L2-3, L3-L4, fluorescent tube LAMP, fuse F1, power supply phase line and zero line are imported by D1 through described F1 and L1 respectively, D2, D3, the rectifier circuit that D4 formed, the input of described rectifier circuit described capacitor C 1 in parallel, the output anode of described rectifier circuit connects described D7, C2, C4, R1, C7, the Q1 collector electrode, the output negative terminal of described rectifier circuit connects described C3, D8, C5, C8, L2-2, R6, the other end of described C3 and described D6 negative pole, the D7 positive pole is connected, described D5 positive pole meets described C2, the D8 negative pole, the positive pole of described D6 connects the negative pole of described D5, the negative pole of D13, described C4, be connected in parallel on the output of described rectifier circuit after the C5 series connection, described R2 is in parallel with described D11, the positive pole of described D11 meets described C8, DB3, the negative pole of described D11 meets described R1, C7, L2-1, L2-3, the other end of described L2-1 connects the base stage of described Q1 by described R3, the described D9 of reverse parallel connection between the base stage of described Q1 and emitter, the emitter of described Q1 and the inter-collector of described Q2 connect described R5, the other end of described DB3 connects described R4, the Q2 base stage, described R4 and described L2-2 join, the described D10 of reverse parallel connection between the base stage of described Q2 and emitter, the emitter of described Q2 meets described R6, described L2-3, connect the negative pole of described D12 after the L3-4 series connection, described D12, the positive interpolar of D13 connects C6, described D12 is connected in parallel on the two ends of described fluorescent tube LAMP one head lamp silk, and described D13 is connected in parallel on the two ends of described fluorescent tube LAMP other end filament.
The beneficial effects of the utility model are: owing to be provided with circumferentially uniform axial convex tendon of two edges in the housing described in the utility model, the boss sidewall of described pedestal one side is provided with circumferentially uniform axial notch of four edges, described convex tendon and described groove plug, like this, no matter two jacks of T8 fluorescent tube lamp socket are horizontally set or vertical the setting, described convex tendon and described groove part can change the horizontal and vertical array direction of plug post by pegging graft, make described plug post can insert described socket core smoothly, adopt electric ballast economize on electricity environmental protection, so the utility model is simple in structure, easy to use, the orientation of plug post can be regulated, the economize on electricity environmental protection.
Description of drawings
Fig. 1 is the plug of the utility model conversion head and the structural representation of first kind of connected mode of socket;
Fig. 2 is the plan structure schematic diagram of conversion head shown in Figure 1;
Fig. 3 is the plug of the utility model conversion head and the structural representation of second kind of connected mode of socket;
Fig. 4 is the plan structure schematic diagram of conversion head shown in Figure 3;
Fig. 5 is the structural representation of the utility model plug post and housing;
Fig. 6 is the structural representation of the utility model socket;
Fig. 7 is the syndeton schematic diagram of the utility model and T5 fluorescent tube;
Fig. 8 is the circuit theory diagrams of electric ballast of the present utility model.
Embodiment
As Fig. 1~shown in Figure 8, the utility model comprises electric ballast 5, two conversion heads, two described conversion heads and described electric ballast 5 corresponding adaptive electrical connections, described electric ballast 5 is made up of circuit board and package casing, described conversion head plug portion 1, socket part 2, described plug portion 1 is connected as one with described socket part 2, described plug portion 1 is suitable with the T8 lamp socket, described socket part 2 is suitable with the T5 fluorescent tube, described plug portion 1 comprises two plug posts 11, housing 12, brace 13, power supply lead wire terminal 131, described socket part 2 comprises pedestal 21, socket core 22, described two plug posts 11 are fixedly connected on described housing 12 outsides, described two plug posts 11 are electrically connected with power supply lead wire terminal 131 by described brace 13, described socket core 22 is arranged at the inside of described pedestal 21, described socket core 22 comprises two binding posts 221, be provided with circumferentially uniform axial convex tendon 121 of two edges in the described housing 12, the boss sidewall of described pedestal 21 1 sides is provided with circumferentially uniform axial notch 211 of four edges, described convex tendon 121 and described groove 211 corresponding adaptive grafting.
The circuit of described electric ballast comprises resistance R 1, R2, R3, R4, R5, R6, capacitor C 1, C2, C3, C4, C5, C6, C7, C8, crystal diode D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, DB3, transistor Q1, Q2, inductance L 1, L2-1, L2-2, L2-3, L3-L4, fluorescent tube LAMP, fuse F1, power supply phase line and zero line are imported by D1 through described F1 and L1 respectively, D2, D3, the rectifier circuit that D4 formed, the input of described rectifier circuit described capacitor C 1 in parallel, the output anode of described rectifier circuit connects described D7, C2, C4, R1, C7, the Q1 collector electrode, the output negative terminal of described rectifier circuit connects described C3, D8, C5, C8, L2-2, R6, the other end of described C3 and described D6 negative pole, the D7 positive pole is connected, described D5 positive pole meets described C2, the D8 negative pole, the positive pole of described D6 connects the negative pole of described D5, the negative pole of D13, described C4, be connected in parallel on the output of described rectifier circuit after the C5 series connection, described R2 is in parallel with described D11, the positive pole of described D11 meets described C8, DB3, the negative pole of described D11 meets described R1, C7, L2-1, L2-3, the other end of described L2-1 connects the base stage of described Q1 by described R3, the described D9 of reverse parallel connection between the base stage of described Q1 and emitter, the emitter of described Q1 and the inter-collector of described Q2 connect described R5, the other end of described DB3 connects described R4, the Q2 base stage, described R4 and described L2-2 join, the described D10 of reverse parallel connection between the base stage of described Q2 and emitter, the emitter of described Q2 meets described R6, described L2-3, connect the negative pole of described D12 after the L3-4 series connection, described D12, the positive interpolar of D13 connects C6, described D12 is connected in parallel on the two ends of described fluorescent tube LAMP one head lamp silk, and described D13 is connected in parallel on the two ends of described fluorescent tube LAMP other end filament.
Four described terminals 221 of the present utility model are wired to four corresponding output end of electric ballast 5 respectively, the power supply lead wire end 131 of described lead terminal 13 is wired to two power ends of electric ballast 5 respectively, and this circuit is installed on the pcb board and is packaged in the housing.In actual the use, T5 fluorescent tube 4 is installed on original T8 lamp socket, only need the two ends of T5 fluorescent tube 4 are installed in respectively in two described conversion heads of the present utility model, then the utility model is installed on original T8 lamp socket, the purpose that can realize not removing original T8 lamp socket and install and use energy-conservation T5 fluorescent tube, save manpower, save cost.When the jack of T8 lamp socket is transversely arranged, described convex tendon 121 of the present utility model is plugged as shown in Figure 1 and Figure 2 with described groove 211; When the jack vertical array of T8 lamp socket, described convex tendon 121 of the present utility model is plugged as shown in Figure 3, Figure 4 with described groove 211.When original grafting direction not to the time, can easily described plug post 11 orientations be changed, adjust at any time.
The utility model can be widely used in lighting field.