CN114593376A - Novel non-driven LED filament lamp - Google Patents

Abstract

The invention discloses a novel non-driving LED filament lamp, comprising a bulb shell and a lamp cap connected to the bottom of the bulb shell, a core column connected with the lamp cap is arranged inside the bulb shell, and a plurality of filaments are surrounded around the core column, so The core column is provided with a current conversion device. The above technical solution converts the input alternating current into direct current through the cooperation of bridge stacks, electrolysis, fuses and other components, replacing the integrated drive module to save the assembly process of the integrated drive module, and achieves the same function through the cooperation of electronic components. On the premise that the life of the whole lamp is not affected, the work efficiency is improved and the production cost is reduced.

Description

A New Type of Driverless LED Filament Lamp

technical field

The invention relates to the technical field of LED lamps, in particular to a novel non-driven LED filament lamp.

Background technique

As the fourth generation of green, energy-saving, power-saving and long-life lighting fixtures, LED light sources have emerged, attracted wide attention, and developed rapidly. The current LED light source is a low-voltage, high-current semiconductor device that must provide a suitable DC current to emit light normally. The technology of DC-driven LED light source has become more and more mature. Since the power supply used in our daily lighting is high-voltage AC (AC100-220V), we must use step-down technology to obtain a lower voltage, commonly used transformers or switching power supplies Step down, then convert the AC into DC, and then into a DC constant current source, in order to make the LED light source emit light. Therefore, in the prior art LED lamps, there must be a certain space for arranging the driving modules, which leads to the fact that the LED lamps with drivers are usually complicated in structure and relatively high in manufacturing cost.

According to data, LED filament lamps on the market are usually equipped with integrated drive modules. Although compared with the previous generation of energy-saving lamps, tungsten filament lamps, incandescent lamps and other aspects of power consumption, luminous flux, and color temperature adjustment, there is a great progress, but A complete integrated drive module is also required.

Chinese patent document CN107671414A discloses a "non-driving LED bulb". A positive terminal and a negative terminal are used, and the wiring is drawn from the positive terminal and connected with a cement resistor and a high-voltage lamp bead light source in turn, and then connected to the negative terminal. The above technical solutions do not improve the bulb itself, and it is difficult to effectively replace the integrated drive module.

SUMMARY OF THE INVENTION

The invention mainly solves the technical problem that the original technical solution needs to assemble an integrated driving module to realize normal operation, and provides a new type of non-driving LED filament lamp. After conversion into direct current, it replaces the integrated drive module to save the assembly process of the integrated drive module. The same function is achieved through the cooperation of electronic components, which improves the work efficiency and reduces the production cost under the premise that the life of the whole lamp is not affected. .

The above technical problems of the present invention are mainly solved by the following technical solutions: the present invention includes a bulb and a lamp cap connected to the bottom of the bulb, the bulb is provided with a stem connected to the bulb, and the stem is surrounded by Several filaments are provided, and a current conversion device is provided on the stem. The bottom of the lamp holder is the live wire end of the lamp holder, the connection between the lamp holder and the bulb is the neutral wire end of the lamp holder, the stem is used to set the circuit structure and the filament, and the current conversion device is used to realize the conversion of alternating current to direct current and filter the current and optimize the anti-surge. .

Preferably, the current conversion device includes an arrangement bridge stack DB1 and an electrolysis assembly that are connected in sequence, the arrangement bridge stack DB1 is connected to the AC input end, and the filter electrolysis is connected to the positive and negative electrodes of the filament. The current conversion device can be packaged as a module combination, which is simpler and faster to assemble and has higher production efficiency.

Preferably, the pin 1 of the finishing bridge stack DB1 is connected to the live wire of the AC input terminal, the pin 2 is connected to one end of the electrolytic assembly, the pin 3 is connected to the neutral wire of the AC input terminal, and the pin 4 is connected to the other end of the electrolytic assembly. . The finishing bridge stack DB1 is used to rectify AC to DC.

Preferably, the electrolysis assembly includes a filter electrolysis C1, one end of the filter electrolysis C1 is connected to the positive electrode of the filament and is connected to the pin 1 of the finishing bridge stack DB1, and the other end of the filter electrolysis C1 is connected to the negative electrode of the filament while being connected to the filament. Pin 4 of the sorting bridge stack DB1 is connected, and a discharge resistor R1 is provided between the other end of the filtering electrolysis C1 and the pin 2 of the sorting bridge stack DB1. The filter electrolysis C1 is used to filter the ripple, and the discharge resistor R1 is used to prevent slow extinction when the light is turned off.

Preferably, both ends of the filter electrolysis C1 are connected in parallel with a varistor RV, and a constant current device D is arranged between the other end of the filter electrolysis C1 and the negative electrode of the filament. The varistor RV is used to prevent surge damage to the device, and the constant current device D is used to provide constant current to the LED lamp bead.

Preferably, a varistor RV is provided between the pin 1 of the sorting bridge stack DB1 and the pin 3 of the sorting bridge stack DB1, and a constant current device D is provided between the other end of the filtering electrolysis C1 and the negative electrode of the filament.

Preferably, both ends of the filter electrolysis C1 are connected in parallel with a varistor RV, and a constant current device D is sequentially arranged between the positive electrode and the negative electrode of the filament.

Preferably, a varistor RV is provided between the pin 1 of the sorting bridge stack DB1 and the pin 3 of the sorting bridge stack DB1, and a constant current device D is sequentially provided between the positive electrode and the negative electrode of the filament.

Preferably, an FR fuse resistor is provided between the pin 1 of the finishing bridge stack DB1 and the live wire of the AC input terminal. When the circuit is abnormal, the FR fuse resistor acts as a protection circuit, that is, a fuse.

The beneficial effects of the present invention are: through the coordination of components such as bridge stacks, electrolysis, fuses, etc., the input alternating current is converted into direct current after passing through, replacing the integrated driving module to save the assembly process of the integrated driving module, and realizing the cooperation of electronic components. The same function improves the work efficiency and reduces the production cost under the premise that the life of the whole lamp is not affected.

Description of drawings

FIG. 1 is a schematic structural diagram of an unpackaged light bulb according to the present invention.

FIG. 2 is a schematic structural diagram of an encapsulated light bulb according to the present invention.

FIG. 3 is a driving circuit diagram of a rear pressure-sensitive internal constant current according to the present invention.

FIG. 4 is a driving circuit diagram of a front pressure-sensitive internal constant current according to the present invention.

FIG. 5 is a driving circuit diagram of a rear pressure-sensitive external constant current according to the present invention.

FIG. 6 is a driving circuit diagram of a front pressure-sensitive external constant current according to the present invention.

In the figure, 1 bulb, 2 lamp head live wire end, 3 lamp head neutral wire end, 4 stem, 5 filament, 6 fuse, 7 finishing bridge stack DB1, 8 electrolytic components, 9 electronic component packaging modules.

Detailed ways

The technical solutions of the present invention will be further described in detail below through examples and in conjunction with the accompanying drawings.

Example: A novel non-driven LED filament lamp of this example, as shown in FIG. 1 , includes a bulb 1 and a lamp cap connected to the bottom of the bulb 1 , and the bulb 1 is provided with a stem 4 connected to the lamp cap inside. A plurality of filaments 5 are arranged around the core column 4, and a current conversion device is arranged on the core column 4. The bottom of the lamp holder is the live wire terminal 2 of the lamp holder, the connection between the lamp holder and the bulb is the neutral wire terminal 3 of the lamp holder, the stem is used to set the circuit structure and filament, and the current conversion device is used to realize the conversion of alternating current to direct current and filter the current to prevent waves. Surge optimization.

The current conversion device includes a sorting bridge stack DB17 and an electrolysis assembly 8 connected in sequence, the sorting bridge stack DB17 is connected to the AC input end, and the filtering electrolysis 8 is connected to the positive and negative electrodes of the filament 5 . Pin 1 of the finishing bridge stack DB1 is connected to the live wire of the AC input terminal, pin 2 is connected to one end of the electrolytic assembly 8, pin 3 is connected to the neutral wire of the AC input terminal, and pin 4 is connected to the other end of the electrolytic assembly 8. The finishing bridge stack DB1 is used to rectify AC to DC. There is an FR fuse resistor between pin 1 of the finishing bridge stack DB1 and the live wire of the AC input terminal. When the circuit is abnormal, the FR fuse resistor plays the role of protecting the circuit, that is, the fuse 6. As shown in Figure 2, the current conversion device can be packaged as a module combination, which is simpler and faster to assemble and has higher production efficiency.

The electrolysis assembly 8 includes a filter electrolysis C1, one end of the filter electrolysis C1 is connected to the positive electrode of the filament 5 and is connected to the pin 1 of the finishing bridge stack DB1, and the other end of the filter electrolysis C1 is connected to the negative electrode of the filament 5 and is connected to the finishing bridge stack at the same time. The pin 4 of DB1 is connected, and a discharge resistor R1 is provided between the other end of the filtering electrolysis C1 and the pin 2 of the finishing bridge stack DB1. The filter electrolysis C1 is used to filter the ripple, and the discharge resistor R1 is used to prevent slow extinction when the light is turned off. Both ends of the filter electrolysis C1 are connected in parallel with a varistor RV, and a constant current device D is arranged between the other end of the filter electrolysis C1 and the negative electrode of the filament 5 . The varistor RV is used to prevent surge damage to the device, and the constant current device D is used to provide constant current to the LED lamp bead.

Circuit parallel scheme 1 is shown in Figure 4, a varistor RV is set between pin 1 of the finishing bridge stack DB1 and pin 3 of the finishing bridge stack DB1, and a varistor RV is set between the other end of the filter electrolysis C1 and the negative electrode of the filament 5. There is a constant current device D.

The circuit parallel scheme 2 is shown in Fig. 5, the two ends of the filter electrolysis C1 are connected in parallel with the varistor RV, and the constant current device D is sequentially arranged between the positive electrode and the negative electrode of the filament 5. The constant current device D is separated from other integrated circuit components to facilitate later replacement.

The circuit parallel scheme 3 is shown in Fig. 6, a varistor RV is arranged between the pin 1 of the finishing bridge stack DB1 and the pin 3 of the finishing bridge stack DB1, and a constant current device is arranged between the positive pole and the negative pole of the filament 5 in turn D.

During operation, alternating current is input from the lamp cap, and passes through the current conversion device arranged on the core column 4, including the finishing bridge stack DB17, the electrolytic assembly 8, the varistor RV and the constant current device D and other components, to convert the alternating current into direct current, and to The current is filtered, optimized for surge protection, and then the output lights the filament. Components such as finishing bridge stack DB17, electrolytic component 8, varistor RV and constant current device D can be packaged into a module combination, which is simpler and faster to assemble and has higher production efficiency.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in similar manners, but will not deviate from the spirit of the present invention or go beyond the definitions of the appended claims range.

Although the terms such as current conversion device and finishing bridge stack are used more in this paper, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; it is contrary to the spirit of the present invention to interpret them as any kind of additional limitation.

Claims (9)

1. A novel non-driven LED filament lamp, characterized in that it comprises a bulb (1) and a lamp holder connected to the bottom of the bulb (1), and the bulb (1) is internally provided with a stem (4) that is connected to the lamp holder. ), a plurality of filaments (5) are arranged around the core column (4), and a current conversion device is arranged on the core column (4). 2. A novel non-driven LED filament lamp according to claim 1, characterized in that the current conversion device comprises a finishing bridge stack DB1 (7) and an electrolysis assembly (8) which are connected in sequence, and the finishing bridge stack DB1 (7) is connected to the AC input terminal, and the filter electrolysis (8) is connected to the positive and negative electrodes of the filament (5). 3. A novel non-driven LED filament lamp according to claim 2, characterized in that, the pin 1 of the finishing bridge stack DB1 is connected with the AC input terminal live wire, and the pin 2 is connected with one end of the electrolytic assembly (8) , pin 3 is connected to the neutral line of the AC input terminal, and pin 4 is connected to the other end of the electrolytic assembly (8). 4. A novel non-driven LED filament lamp according to claim 2 or 3, characterized in that the electrolysis assembly (8) comprises a filter electrolysis C1, and one end of the filter electrolysis C1 is connected to the positive electrode of the filament (5). At the same time, it is connected to the pin 1 of the finishing bridge stack DB1, the other end of the filter electrolysis C1 is connected to the negative electrode of the filament (5) and is connected to the pin 4 of the finishing bridge stack DB1, and the other end of the filter electrolysis C1 is connected to the finishing bridge stack. There is a discharge resistor R1 between pins 2 of DB1. 5. A new type of non-driven LED filament lamp according to claim 4, characterized in that, both ends of the filter electrolysis C1 are connected in parallel with a varistor RV, and the other end of the filter electrolysis C1 and the negative electrode of the filament (5) are connected in parallel. There is a constant current device D between them. 6. The novel non-driven LED filament lamp according to claim 4, wherein a varistor RV is provided between the pin 1 of the finishing bridge stack DB1 and the pin 3 of the finishing bridge stack DB1, A constant current device D is arranged between the other end of the filtering electrolysis C1 and the negative electrode of the filament (5). 7. A new type of non-driven LED filament lamp according to claim 4, characterized in that, both ends of the filter electrolysis C1 are connected in parallel with a varistor RV, and a constant voltage is arranged between the positive electrode and the negative electrode of the filament (5) in turn. flow device D. 8. The novel non-driven LED filament lamp according to claim 4, wherein a varistor RV is provided between the pin 1 of the finishing bridge stack DB1 and the pin 3 of the finishing bridge stack DB1, A constant current device D is arranged between the positive electrode and the negative electrode of the filament (5). 9 . The novel non-driven LED filament lamp according to claim 1 , wherein a FR fuse resistor is provided between the pin 1 of the finishing bridge stack DB1 and the live wire of the AC input terminal. 10 .

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