Device for directly replacing fluorescent lamp tube with LED lamp tube
By designing a device that includes a conversion drive power supply and a diffusing agent, alternating current is converted into direct current, solving the problem of direct replacement of fluorescent tubes with LED tubes, and achieving simplified installation and improved light diffusion.
Patent Information
- Application Number
- CN202422466335.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-10-12
AI Technical Summary
Old-style fluorescent tubes use alternating current and are controlled by electronic ballasts, while LED tubes are driven by direct current. This means that electronic ballasts cannot directly drive LED tubes, and removing the ballast is labor-intensive and time-consuming, making it difficult to directly replace fluorescent tubes with LED tubes.
A device comprising a plastic lamp tube, connector, lamp strip, lamp holder, and conversion driver power supply is designed. The conversion driver power supply converts AC power to DC power, and the connector and diffusing agent enhance the light diffusion capability. A conversion switch is provided to adapt to different wiring methods.
It enables direct replacement of fluorescent tubes with LED tubes, improves tube replacement capability and light diffusion effect, simplifies the installation process, and ensures uniform lighting of the lamp head.
Smart Images

Figure CN223622847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluorescent tube replacement technology, specifically a device for directly replacing fluorescent tubes with LED tubes. Background Technology
[0002] Currently, energy conservation is being advocated globally, and in the field of lighting, which is most closely related to our daily lives, LED tubes are undoubtedly the best energy-saving product available. They achieve the same effect as traditional fluorescent tubes with lower power consumption, and their lifespan is two to three times longer. Therefore, replacing existing fluorescent tubes is the most direct energy-saving solution.
[0003] However, the driving methods of old-fashioned fluorescent tubes and LED tubes are different. Old-fashioned fluorescent tubes use alternating current (AC) and are controlled by an electronic ballast at the front end to drive the tube. LED tubes, on the other hand, are driven by direct current (DC), and the front end is a power supply that converts AC to DC. In this case, the electronic ballast cannot directly drive the LED tube, and removing the electronic ballast is a laborious and time-consuming task. Some products cannot even be disassembled. Therefore, the technology of the tubes needs to be upgraded so that products with electronic ballasts can directly use LED tubes. Utility Model Content
[0004] The purpose of this invention is to provide a device that directly replaces fluorescent tubes with LED tubes, thereby solving the problem mentioned in the background art: old-style fluorescent tubes use alternating current (AC) and are controlled by an electronic ballast at the front end to drive the tubes to light up. LED tubes, on the other hand, are driven by direct current (DC), requiring an AC-to-DC power supply at the front end.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for directly replacing fluorescent tubes with LED tubes, comprising a plastic tube, connectors installed on both sides of the plastic tube, plugs installed inside the connectors, a light strip installed inside the plastic tube, a lamp holder installed at the front end of the light strip, and a conversion drive power supply installed on one side inside the plastic tube.
[0006] Preferably, the connectors are symmetrically distributed about the central axis of the plastic lamp tube, and two sets of plugs are installed inside the connectors.
[0007] Preferably, the lamp holders are evenly distributed at the front end of the lamp strip, and a ballast is installed inside the conversion drive power supply.
[0008] Preferably, the lamp holders are divided into two groups connected in parallel and then a single group is connected in series, and the voltage and current of the lamp holders are evenly distributed.
[0009] Preferably, the light strip is equipped with two wiring terminals, and the end face of the connector is equipped with a changeover switch.
[0010] Preferably, a connecting screw is installed inside one side of the connector, and a cross groove is formed on the outer side wall of the connecting screw.
[0011] Preferably, the middle position inside the plastic lamp tube is filled with a diffusing agent, and a first diffusion layer is fixed at both ends of the diffusing agent.
[0012] Preferably, the first diffusion layer is symmetrically distributed about the central axis of the diffusing agent, and the filling surface area between the diffusing agent and the first diffusion layer is the same.
[0013] Compared with the prior art, the beneficial effects of this utility model are: this device for directly replacing fluorescent tubes with LED tubes not only improves the tube replacement capability, but also improves the light diffusion capability of the device.
[0014] (1) The product is composed of a connector, a plastic lamp tube, a lamp strip, a lamp head, a conversion driver, and a plug. It is equipped with a conversion switch. The conversion driver can convert the AC voltage output by the traditional ballast into a DC 24-volt voltage to drive the lamp head to light up. The lamp heads are evenly distributed into two groups, and the lamp heads in each group are connected in parallel. Then, the two groups are connected in series to achieve the effect of even voltage and current distribution, ensuring that the output of each lamp head is similar. The product also has a conversion switch with three positions: position one, position two, and neutral. Because the traditional product has four terminals, while this product has two terminals, we need a conversion switch to convert the four pins to two pins to ensure that the product can be connected. When the lamp strip is installed on the traditional product, if the lamp head does not light up, the pin may be in position one, while the switch is in position two or neutral. At this time, press the conversion switch to position one.
[0015] (2) By filling the inside of the plastic lamp tube with a diffusing agent, the lamp head is evenly distributed on the end face of the lamp strip. With the cooperation of the diffusing agent and the first diffusing layer, the light emitted by the lamp head can be effectively diffused to a wider angle, thereby improving the lighting effect and the overall performance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 2 This is a top view of the structure of this utility model;
[0018] Figure 3 This is a side view of the structure of this utility model;
[0019] Figure 4 This is a partial cross-sectional view of the plastic lamp tube of this utility model.
[0020] In the diagram: 1. Connector; 2. Plastic lamp tube; 3. Lamp strip; 4. Lamp holder; 5. Converter driver; 6. Plug; 7. Connecting screw; 8. Diffuser; 9. First diffusion layer. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 One embodiment of this utility model is a device for directly replacing fluorescent tubes with LED tubes, including a plastic tube 2, connectors 1 installed on both sides of the plastic tube 2, plugs 6 installed inside the connectors 1, a light strip 3 installed inside the plastic tube 2, a lamp holder 4 installed at the front end of the light strip 3, and a conversion drive power supply 5 installed on one side inside the plastic tube 2.
[0023] The connector 1 is symmetrically distributed about the central axis of the plastic lamp tube 2, and two sets of plugs 6 are installed inside the connector 1.
[0024] The lamp holders 4 are evenly distributed at the front end of the lamp strip 3, and the ballast is installed inside the conversion drive power supply 5.
[0025] The lamp holder 4 is divided into two groups connected in parallel and then connected in series in a single group, so that the voltage and current of the lamp holder 4 are evenly distributed.
[0026] The light strip 3 is equipped with two wiring terminals, and the end face of the connector 1 is equipped with a changeover switch.
[0027] A connecting screw 7 is installed inside one side of the connector 1, and a cross groove is opened on the outer wall of the connecting screw 7.
[0028] The middle part of the inside of the plastic lamp tube 2 is filled with a diffusing agent 8, and the two ends of the diffusing agent 8 are fixed with a first diffusion layer 9.
[0029] The first diffusion layer 9 is symmetrically distributed about the central axis of the diffusing agent 8, and the filling surface area between the diffusing agent 8 and the first diffusion layer 9 is the same.
[0030] Furthermore, the conversion drive power supply 5 can convert the AC voltage output by the traditional ballast into a DC 24V voltage to drive the lamp head 4 to light up. The lamp head 4 is evenly distributed into two groups, and the lamp head 4 in each group is connected in parallel. Then, the two groups are connected in series to achieve the effect of even voltage and current distribution, ensuring that the output of each lamp head 4 is similar.
[0031] Further power is input at plug 6, then passes through and is output from the ballast to one side of lamp holder 4, and enters the conversion drive power supply 5. The conversion drive power supply 5 converts AC to DC, driving the lamp strip 3 to light up. If it does not light up, the conversion switch needs to be checked and adjusted.
[0032] Working principle: First, the diffuser 8 is filled inside the plastic lamp tube 2. The lamp head 4 is evenly distributed on the end face of the lamp strip 3. With the cooperation of the diffuser 8 and the first diffuser layer 9, the light emitted by the lamp head 4 can be effectively diffused to a wider angle. The power supply is connected at the plug 6, and then passes through and is output from the ballast to one side of the lamp head 4. After entering the conversion drive power supply 5, the conversion drive power supply 5 converts the AC power to DC power, driving the lamp strip 3 to light up. If it does not light up, there is a problem with the wiring of the lamp head pins on the other side. In this case, the conversion switch needs to be pressed, and the lamp strip 3 can be lit up.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A device for directly replacing fluorescent tubes with LED tubes, comprising a plastic tube (2), characterized in that: The plastic lamp tube (2) has connectors (1) installed on both sides. A plug (6) is installed inside the connector (1). A lamp strip (3) is installed inside the plastic lamp tube (2). A lamp head (4) is installed at the front end of the lamp strip (3). A conversion drive power supply (5) is installed on one side inside the plastic lamp tube (2).
2. The device for directly replacing fluorescent tubes with LED tubes according to claim 1, characterized in that: The connector (1) is symmetrically distributed about the central axis of the plastic lamp tube (2), and two sets of plugs (6) are installed inside the connector (1).
3. The device for directly replacing fluorescent tubes with LED tubes according to claim 1, characterized in that: The lamp holders (4) are evenly distributed at the front end of the lamp strip (3), and a ballast is installed inside the conversion drive power supply (5).
4. The device for directly replacing fluorescent tubes with LED tubes according to claim 1, characterized in that: The lamp holder (4) is divided into two groups connected in parallel and then connected in series in a single group. The voltage and current of the lamp holder (4) are evenly distributed.
5. The device for directly replacing fluorescent tubes with LED tubes according to claim 1, characterized in that: The light strip (3) is equipped with two wiring terminals, and the end face of the connector (1) is equipped with a changeover switch.
6. The device for directly replacing fluorescent tubes with LED tubes according to claim 1, characterized in that: A connecting screw (7) is installed inside one side of the connector (1), and a cross groove is provided on the outer side wall of the connecting screw (7).
7. The device for directly replacing fluorescent tubes with LED tubes according to claim 1, characterized in that: The plastic lamp tube (2) is filled with a diffusing agent (8) in the middle position, and a first diffusion layer (9) is fixed at both ends of the diffusing agent (8).
8. The device for directly replacing fluorescent tubes with LED tubes according to claim 7, characterized in that: The first diffusion layer (9) is symmetrically distributed about the central axis of the diffuser (8), and the filling surface area between the diffuser (8) and the first diffusion layer (9) is the same.