CN2872585Y - Multi-electrode fluorescent light tube - Google Patents

Abstract

A multi-electrode fluorescent lamp is characterized in that 3-8 electrodes are respectively disposed on the fixed electrode brackets on both sides of the fluorescent lamp. When the fluorescent lamp is under low pressure condition, the physical phenomenon of cathode discharge by the electrode of the lowest resistance value among the several electrodes on the fixed electrode bracket on each side of the fluorescent lamp occurs, so that the service life of the electrode in the multi-electrode fluorescent lamp is prolonged by one time to several times comparing to that of the electrode in the single electrode fluorescent lamp in the prior art. As the service life of the fluorescent lamp is determined by the service life of the electrode, therefore the multi-electrode fluorescent lamp effectively prolongs the service life of the fluorescent lamp, improves the cost performance of the fluorescent lamp, and has simple structure.

Description

Multi-electrode fluorescent tube

Technical field

The utility model relates to a kind of electrode suppor device of fluorescent tube, relates in particular to a kind of multi-electrode fluorescent tube.

Background technology

The performance of the fluorescent lamp spot electricity consumption utmost point is one of crucial factor that influences fluorescent lifetime.After fluorescent lamp comes out, people just begin the aspects such as decomposition activation technology of electrode emission material in material, shape, structure, coiling mode, electrode electronic emission material (electronics powder) composition and coating method, the exhaust process at electrode and constantly study, in the hope of improving the technical performance of lamp with electrode, and constantly make progress at aspects such as reducing electrode electronic emission material effusion power and anti-ion bombardment performance, existing fluorescent lamp electrode technical performance is improved constantly, make reach 8000～12000 hours the useful life of lamp.But light " sputter " and " evaporation " phenomenon of burning-point process generation that begins to produce at fluorescent tube, make the actual life of fluorescent lamp and calculate to differ greatly useful life, thereby reduced the price function ratio of fluorescent tube.

The utility model content

The purpose of this utility model is to provide a kind of electrode life long, and price function is than high multi-electrode fluorescent tube.

The purpose of this utility model is to realize by following technical measures: with the fixed electrode seal wire of two VEs on each fixed electrode support stem stem, be cut into a long seal wire,, a short-length guidewires, and according to the size of fluorescent tube internal diameter, after lamp is processed into ring-type with wire, be welded on respectively on the long seal wire and short-length guidewires of fixed electrode, on the formation plane balancing, following ring-type seal wire, article 3 ,～8 the two ends of a filament are welded on respectively, on the following ring-type seal wire, coat the electronics powder, make to have 3～8 vertical electrodes on the fixed electrode support, and have the fixed electrode support horn mouth of 3～8 vertical electrodes and two inputs of fluorescent tube are sealedly and fixedly connected respectively two.

Four fixed electrode seal wire A, A1, B, B1 can also be arranged on the fixed electrode support stem stem, A is connected with A1, B is connected with B1, article 2, filament is installed on fixed electrode seal wire A and the B, other 2 filaments are installed on fixed electrode seal wire A1 and the B1, coat the electronics powder, make to have 4 strip electrodes on the fixed electrode support and have the fixed electrode support horn mouth of 4 strip electrodes and two inputs of fluorescent tube are sealedly and fixedly connected respectively two.

3 filaments have been installed respectively on the fixed electrode seal wire of two VEs on the fixed electrode support stem stem, coat the electronics powder, make on the fixed electrode support to have 3 strip electrodes, and have the fixed electrode support horn mouth of 3 strip electrodes and two inputs of fluorescent tube are sealedly and fixedly connected respectively two.

Barrel-shaped metal baffle plate is installed on the independent seal wire of each fixed electrode support stem stem, and with electrodes surrounding, screen is obstructed with circuit.

The beneficial effects of the utility model are: according to being separately installed with many strip electrodes on the fixed electrode support of fluorescent tube two ends, after making the finished product fluorescent tube by other lamp manufacturing process, when switching on work by ballast at every turn, many strip electrodes are in fluorescent tube under hypobaric condition, every end is mainly by the little wherein physical phenomenon of carrying out cathodic discharge of resistance value, the electrode life that makes multi-electrode fluorescent tube prolongs one times to several times than the electrode life of the single electrode fluorescent tube of prior art, because the useful life of depending on electrode useful life of fluorescent tube, thereby the working life that has prolonged fluorescent tube effectively, improved the price function ratio of fluorescent tube, and simple in structure, it is few to increase cost.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Fig. 1 is the structural representation that has 4 vertical electrodes on the fixed electrode support.

Fig. 2 is the structure for amplifying schematic diagram of fixed electrode support among Fig. 1 embodiment.

Fig. 3 is the structural representation that 4 fixed electrode seal wires are installed 4 strip electrodes on the fixed electrode support stem stem.

Fig. 4 is the structure for amplifying schematic diagram of fixed electrode support among Fig. 3 embodiment.

Fig. 5 is the structural representation that two fixed electrode seal wires are installed 3 strip electrodes on the fixed electrode support.

Fig. 6 is the structure for amplifying schematic diagram of fixed electrode support among Fig. 5 embodiment.

Fig. 7 is the structural representation that the multi-electrode support is placed barrel-shaped metal baffle plate.

Fig. 8 is the structure for amplifying schematic diagram of fixed electrode support among Fig. 7 embodiment.

Embodiment

As shown in Figure 2, in the fixed electrode support J of multi-electrode fluorescent tube, the fixed electrode seal wire of two VEs on the fixed electrode support J stem stem is cut into a long seal wire 4 and a short-length guidewires 5 after shaping, and according to the size of fluorescent tube internal diameter, after lamp is processed into two breach ring-types with wire, be welded on respectively on long seal wire 4 and the short-length guidewires 5, form the last annular seal wire 7 and the following annular seal wire 6 of plane balancing, wherein the two ends of annular seal wire 6 should keep certain distance with long seal wire 4 down, filament 8,9,10,11 two ends are welded on respectively on annular seal wire 6 and the following annular seal wire 7, filament 8,9,10,11 coat the electronics powder respectively, make fixed electrode support J have 4 vertical electrodes, and have 4 vertical fixed electrode support J1 with two, J2 puts two inputs 12 of fluorescent lamp tube cell 1 respectively into, in 14, (as shown in Figure 1) its stem stem horn mouth 2,13 respectively with two inputs 12 of fluorescent lamp tube cell, 14 are sealedly and fixedly connected, by other lamp manufacturing process, be processed into the finished product fluorescent tube of multi-electrode fluorescent lamp.Because in the physical process that fluorescent tube starts, fluorescent tube is under the effect of effective voltage, electrical breakdown takes place earlier in gas between two end electrodes, cause glow discharge then, transfer to arc discharge by glow discharge then, form thermion electric arc, reach local equilibrium at last, the normal burning-point of fluorescent lamp.Causing cathode emission material loss main cause is that sputter and evaporation cause, electrode blast temperature rise causes that cathode emission material sheet peels off during startup, can reduce the storage capacity of coating significantly, and be the reason that causes the oxidation material evaporation during normal burning-point, the working life of fluorescent lamp is actually by electrode decision, when negative electrode can not be from heat emission that oxide coating obtains enriching, fluorescent tube is not to be not easy to start, be exactly in glow discharge " stranded ", this will make all residue cathode materials spatter very soon, even and if lamp is also bad.Thereby improve the storage capacity of decomposition activation rear oxidation thing coating effectively, just can prolong the useful life of establishing electrode effectively.Experiment is found, at the electrode suppor at fluorescent tube two ends many strip electrodes is installed respectively, and under hypobaric condition, every end is mainly by a little physical phenomenon of carrying out cathodic discharge of resistance value in pipe.In actual use, after the electric ballast energising, every end discharges by a little electrode of resistance value, lights fluorescent tube.Because when fluorescent tube starts and the cathode oxidation coating sputter that produces in the process of normal ignition and the evaporation of tungsten filament, the electrode resistance value of operate as normal is increased, when resistance value occurring than other under electric situation greatly, the electrode that another resistance value is little can carry out cathodic discharge again when starting, light fluorescent tube, so constantly circulation, make the every strip electrode that is installed on the fixed electrode support stem stem all have an opportunity when starting, to carry out work, when the last item electrode can not be from heat emission that oxide covering obtains enriching, the life-span of fluorescent tube just finished.The practice explanation, have many strip electrodes on every end fixed electrode support stem stem, its cathode is than having only the cathode of a strip electrode to factor two to several times on the every end fixed electrode of the prior art stem stem, thereby prolonged one times to several times of negative electrode useful life effectively, it also is the working life that has improved fluorescent tube effectively, adopt multielectrode fixed electrode support, be applicable to the application of straight tube, endless tube, compact and combined fluorescent tube.Tube diameter is Φ 12～Φ 32, and power of lamp tube is 15W～300W.

Among Fig. 4, on every end fixed electrode support stem stem four fixed electrode seal wire A, A1, B, B1 are arranged, A is connected with A1, B is connected with B1, filament 6,7 is installed on fixed electrode seal wire A, the B, and filament 4,5 is installed on fixed electrode seal wire A1, the B1, coats the electronics powder, make on fixed electrode support J1 and the fixed support J2 to have four strip electrodes respectively, and fixed electrode support J1 and fixed electrode support J2 are put into respectively in two inputs of fluorescent lamp tube cell 1 (as shown in Figure 3).Two inputs of the horn mouth of two fixed electrode supports and fluorescent tube are sealedly and fixedly connected respectively, by other lamp manufacturing process, be processed into the finished product fluorescent tube of four electrode fluorescence lamps, the fluorescent tube caliber is Φ 12～Φ 32, power of lamp tube is 15W～300W, and other operation principle is the same with Fig. 1, Fig. 2.

In Fig. 6, article three, filament 4,5,6 is installed in respectively on the fixed electrode seal wire A and fixed electrode seal wire B on the fixed electrode support J stem stem, coat the electronics powder, make fixed electrode support J have three electrodes, fixed electrode support J1 and fixed electrode support J2 are put into two inputs (as shown in Figure 5) of fluorescent lamp tube cell, its stem stem horn mouth is sealedly and fixedly connected with two input ports of fluorescent lamp tube cell respectively, by other lamp manufacturing process, is processed into the finished product fluorescent tube of three electrode fluorescence lamps.The fluorescent tube caliber is Φ 9～Φ 32, and power of lamp tube is 7W～300W, and other operation principle is the same with Fig. 1, Fig. 2.

As shown in Figure 8, barrel-shaped metal baffle plate 5 is fixed on the independent seal wire 4 on the fixed electrode support J stem stem, a plurality of electrodes 6 on the fixed electrode J stem stem are surrounded, screen is obstructed with circuit, and will adorn in the fixed electrode support J1 of metal baffle plate and two inputs that fixed electrode support J2 puts fluorescent lamp tube cell 1 into (as shown in Figure 7), two inputs of the horn mouth of two fixed electrode supports and fluorescent tube are sealedly and fixedly connected respectively, by other lamp manufacturing process, be processed into multi-electrode fluorescent tube with barrel-shaped baffle plate.In the process of fluorescent tube startup and normal burning-point, barrel-shaped metal baffle plate each strip electrode of having avoided effectively coexisting on the electrode suppor pollutes mutually and prevents the cathode vaporation tube wall, simultaneously, do not collect the device of anode current owing to there is other on the electrode, most of electric current must be received by transmitting coil itself, and this part power is exactly a big chunk in the desired heating transmitting coil energy, increase barrel-shaped metal baffle plate, the effect of article on plasma body is to reduce near the electric arc cross section of anode, increase current density, thereby also increased near the negative electrode electron density, this has also reduced near the electric arc cross section of anode, increases current density, thereby has also increased near the electron density the negative electrode, this has also reduced cathode fall, has improved the efficient of fluorescent tube effectively.

Claims (5)

1. multi-electrode fluorescent tube, it is characterized in that: the fixed electrode seal wire of two VEs on each fixed electrode support stem stem, wherein one is long seal wire, another is a short-length guidewires, be welded with respectively on the long seal wire of fixed electrode and the short-length guidewires plane balancing on, following annular lamp wire guide, on, weld respectively at the two ends of following ring-type seal wire and 3～8 filaments, promptly have 3～8 vertical electrodes on a fixed electrode support, two have the fixed electrode support horn mouth of 3～8 vertical electrodes and two inputs of fluorescent tube are sealedly and fixedly connected respectively, tube diameter is Φ 12mm～Φ 32mm, and power of lamp tube is 15W～300W.

2. multi-electrode fluorescent tube according to claim 1, it is characterized in that: on the fixed electrode support stem stem four fixed electrode seal wires (A), (A1), (B), (B1) can also be arranged, (A) be connected with (A1), (B) be connected with (B1), article 2～4, filament be installed in fixed electrode seal wire (A) and (B) on, other 2～4 filaments be installed in fixed electrode seal wire (A1) and (B1) on, promptly have 4～8 strip electrodes on a fixed electrode support.

3. multi-electrode fluorescent tube according to claim 1 is characterized in that: on two fixed electrode seal wires on the fixed electrode support stem stem 3～5 strip electrodes can also be installed directly.

4. according to claim 1,2 described multi-electrode fluorescent tubes, it is characterized in that: on the independent seal wire of each fixed electrode support stem stem barrel-shaped metal baffle plate can also be installed, with electrodes surrounding, screen is obstructed with circuit.

5. according to claim 1,3 described multi-electrode fluorescent tubes, it is characterized in that: on the independent seal wire of each fixed electrode support stem stem barrel-shaped metal baffle plate can also be installed, with electrodes surrounding, screen is obstructed with circuit.

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