Electric shock-proof lamp tube plug and LED lamp tube

By introducing an elastic conductive mechanism into the plug of the LED lamp, the circuit is made conductive when the plug is inserted and disconnected when it is pulled out, which solves the problem of the copper needle electrode being electrified in the LED lamp and improves safety and ease of use.

CN224414938UActive Publication Date: 2026-06-26ZHONGSHAN YISHI LIGHTING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN YISHI LIGHTING TECH CO LTD
Filing Date
2026-05-22
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing LED lighting fixtures, the copper pin electrodes of the end caps at both ends of the bracket are directly connected, causing the unconnected end caps to become live, posing a serious risk of electric shock and violating the safety design regulations for lighting fixtures.

Method used

It adopts an elastic conductive mechanism to achieve automatic circuit switching through the insertion and removal of the plug. The copper pin is connected to the internal circuit only when the plug is in place, and it is automatically disconnected after being pulled out, so as to achieve single-end power supply and the other end is insulated and not energized.

Benefits of technology

It eliminates the risk of electric shock at the source, improves safety performance, meets the safety design requirements of lighting fixtures, has a compact structure, is easy to assemble, is flexible in use, and is inexpensive.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224414938U_ABST
    Figure CN224414938U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of anti-electric shock lamp tube plug and LED lamp tube, including plug cover, copper needle and anti-electric shock component, plug cover is equipped with socket slot, copper needle is located in socket slot, anti-electric shock component includes the elastic conductive mechanism of symmetrical arrangement in copper needle outside;Elastic conductive mechanism can be connected copper needle with lamp tube internal power line when external plug is inserted, automatically disconnect when plug is pulled out, so that copper needle is in insulation non-live state.LED lamp tube includes lamp tube support, lampshade, drive board, LED light source board and both ends of anti-electric shock lamp tube plug.The utility model automatically realizes circuit on-off by plugging action, only wiring terminal conduction, non-wiring end copper needle whole process is not electrified, avoids electric shock hidden danger from the source, meets luminaire safety requirement;Two end plug structure is universal, can be powered at any end, overall structure is compact, action is reliable, easy to install, applicable to all kinds of integrated LED lamp tube use.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, and in particular, to an anti-electric shock lamp tube plug and an LED lamp tube. Background Technology

[0002] Currently, in conventional integrated LED tubes on the market, the copper electrode pins inside the end caps of the bracket are directly interconnected through internal wires to form a complete circuit. When either end cap is connected to a mains power supply, all exposed and touchable copper pins at both ends become energized. Since these pins are directly exposed and can be touched by hand, the unconnected end caps pose a serious risk of electric shock during installation, wiring, and maintenance, failing to meet the safety design requirements of lighting regulations and resulting in poor safety during use. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an anti-electric shock lamp tube plug and an LED lamp tube, which can achieve safe isolation by energizing one end and de-energizing the other end.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An anti-electric shock lamp tube plug includes a plug cover, copper pins, and an anti-electric shock component; the plug cover has a socket groove on its lower outer surface, and two copper pins are provided and located at the center of the socket groove; the anti-electric shock component includes a pair of elastic conductive mechanisms symmetrically arranged on the outside of the two copper pins, the elastic conductive mechanisms being used to connect the copper pins to the power line inside the lamp tube when an external plug is inserted into the socket groove, and to disconnect the connection between the copper pins and the power line inside the lamp tube when the plug is pulled out.

[0006] Furthermore, the elastic conductive mechanism includes a pressure rod, a spring, a U-shaped conductive sheet, and a rotating shaft; the bottom of the socket slot has a through hole, a shaft hole, and a rotating groove, with the shaft hole located above the rotating groove; the pressure rod slides through the through hole, and one end of the pressure rod is fixedly connected to one end of the U-shaped conductive sheet, which is also used to connect the power cord inside the lamp tube; the spring passes through the pressure rod and is compressed between the pressure rod and the bottom surface of the socket slot; a rotating sleeve is provided in the middle of the U-shaped conductive sheet, which is located in the rotating groove, and the other end of the U-shaped conductive sheet is initially located in front of the tail of the copper needle and maintains a distance; the rotating shaft passes through the shaft hole and the rotating sleeve in sequence.

[0007] Furthermore, the head of the pressure rod is provided with a pressure rod cap.

[0008] Furthermore, a nut is provided at the tail end of the pressure rod.

[0009] Furthermore, the portion of the rotating shaft located in the shaft hole is provided with threads and the top of the rotating shaft is provided with a nut, and the shaft hole is a threaded hole.

[0010] Furthermore, a pair of through mounting holes are provided at the bottom of the socket slot, and an annular flange and a circular cover plate are provided at the tail of the copper pin in sequence. The size of the annular flange is smaller than that of the circular cover plate, and the annular flange and the circular cover plate are located on the front and rear sides of the mounting holes, respectively.

[0011] Furthermore, both the plug and the pressure rod are made of insulating material.

[0012] An LED tube includes a tube bracket, a lampshade, a driver board, an LED light source board, and anti-electric shock tube plugs respectively disposed at both ends of the tube bracket; the lampshade is installed at the bottom of the tube bracket, the driver board and the LED light source board are respectively installed inside the tube bracket, and the driver board is connected to an elastic conductive mechanism through a power line.

[0013] The beneficial effects of this utility model are as follows: By setting an elastic conductive mechanism inside the plug, the circuit is automatically switched on and off by the insertion and removal of the plug. The copper pin is only connected to the internal circuit when the plug is fully inserted, and it is automatically disconnected after being removed. This achieves single-end power supply, and the copper pin at the non-connection end is completely insulated and non-energized, eliminating the risk of electric shock at the source and greatly improving safety performance. The plugs at both ends have completely identical structures, allowing power to be supplied from either end, making it flexible and convenient to use. The overall structure is compact, simple to assemble, reliable in operation, and low in cost. It can be perfectly adapted to existing integrated LED tubes, meets the safety design requirements of lighting fixtures, and has strong practicality.

[0014] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 This is a front view of the anti-electric shock lamp tube plug of this utility model;

[0017] Figure 2 This is a schematic diagram of the back of the anti-electric shock lamp tube plug of this utility model;

[0018] Figure 3 This is an exploded diagram of the anti-electric shock lamp tube plug of this utility model;

[0019] Figure 4 This is a perspective view of the LED tube of this utility model;

[0020] Figure 5 This is an exploded view of the LED tube of this utility model;

[0021] Figure 6 This is a cross-sectional view of the LED tube of this utility model.

[0022] Legend:

[0023] 100: Anti-electric shock lamp tube plug

[0024] 110: End cap; 111: Socket groove; 112: Through hole; 113: Shaft hole; 114: Rotary groove; 1111: Mounting hole

[0025] 120: Copper needle; 1211: Annular flange; 1212: Circular cover plate

[0026] 130: Elastic conductive mechanism; 131: Pressure rod; 1311: Pressure rod cap; 1312: Nut; 132: Spring; 133: U-shaped conductive sheet; 1331: Rotating sleeve; 134: Shaft; 1341: Thread; 1342: Nut

[0027] 200: Lamp tube bracket; 210: Power cord

[0028] 300: Lampshade

[0029] 400: Driver board

[0030] 500: LED light source board. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] 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.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] Combination Figure 1 , Figure 2 , Figure 3 As shown, in this embodiment, an anti-electric shock lamp tube plug 100 includes a plug cover 110, copper pins 120, and an anti-electric shock component. The plug cover 110 is made of insulating material, and a socket groove 111 is provided on the lower side of its outer surface for inserting an external power plug. Two copper pins 120 are provided and symmetrically arranged in the center of the socket groove 111 for contacting the plug electrodes to conduct electricity.

[0036] In this embodiment, as Figure 1 , Figure 3 As shown, the anti-electric shock component includes a pair of elastic conductive mechanisms 130 symmetrically arranged on the outside of the two copper pins 120. The elastic conductive mechanism 130 can be triggered by pressure when the external plug is inserted into the socket slot 111, thereby connecting the copper pins 120 with the power line 210 inside the lamp tube. When the plug is pulled out of the socket slot 111, the elastic conductive mechanism 130 automatically resets, disconnecting the copper pins 120 from the power line 210, so that the copper pins 120 are in an insulated and non-energized state.

[0037] like Figure 3 As shown, in this embodiment, the elastic conductive mechanism 130 includes a pressure rod 131, a spring 132, a U-shaped conductive sheet 133, and a rotating shaft 134. The bottom of the socket slot 111 has a through hole 112, a shaft hole 113, and a rotating groove 114, with the shaft hole 113 located above the rotating groove 114. The pressure rod 131 is made of insulating material and slides through the through hole 112, allowing it to slide back and forth along the through hole 112. One end of the pressure rod 131, passing through the through hole 112, is fixedly connected to one end of the U-shaped conductive sheet 133. This end of the U-shaped conductive sheet 133 is also connected to the internal power line 210 of the lamp tube, thus enabling circuit connection.

[0038] In this embodiment, the spring 132 is sleeved on the pressure rod 131 and compressed between the pressure rod 131 and the bottom surface of the socket groove 111, providing the pressure rod 131 with an outward restoring elastic force; a rotating sleeve 1331 is integrally formed in the middle position of the U-shaped conductive sheet 133, and the rotating sleeve 1331 is placed in the rotating groove 114 and can rotate freely around the rotating shaft 134; the other end of the U-shaped conductive sheet 133 is located in front of the tail of the copper needle 120 in the initial state and maintains an insulating distance from the copper needle 120, at which time the circuit is in the open state.

[0039] In this embodiment, the rotating shaft 134 is sequentially inserted through the shaft hole 113 and the rotating sleeve 1331, and the U-shaped conductive sheet 133 is rotatably assembled inside the plug cover 110. The portion of the rotating shaft 134 located in the shaft hole 113 is provided with threads 1341, and the top is provided with a nut 1342. The shaft hole 113 is a matching threaded hole, so that the rotating shaft 134 can be stably fixed and the rotation is reliable.

[0040] Combination Figure 3 As shown, in this embodiment, the head of the pressure rod 131 is provided with a pressure rod cap 1311 to facilitate the smooth pressing of the plug; the tail of the pressure rod 131 is provided with a nut 1312 to limit and prevent the pressure rod 131 from coming out of the through hole 112. A pair of through mounting holes 1111 are opened at the bottom of the socket groove 111. The tail of the copper pin 120 is provided with an annular flange 1211 and a circular cover plate 1212 in sequence. The annular flange 1211 and the circular cover plate 1212 are located on the front and rear sides of the mounting hole 1111, respectively, to achieve a stable assembly of the copper pin 120 and prevent loosening or falling off.

[0041] This technical solution also includes an LED lamp tube in this embodiment, such as... Figure 4 , Figure 5 , Figure 6 As shown, the lamp includes a lamp holder 200, a lamp cover 300, a driver board 400, an LED light source board 500, and two sets of anti-electric shock lamp plugs 100. The two sets of anti-electric shock lamp plugs 100 are respectively installed at the left and right ends of the lamp holder 200, with identical structures and interchangeable. The lamp cover 300 is snapped onto the bottom of the lamp holder 200. The driver board 400 and the LED light source board 500 are fixedly installed inside the lamp holder 200. The driver board 400 is connected to the elastic conductive mechanism 130 through a power cable 210 to form a complete power supply circuit.

[0042] In this embodiment, when the device is working, the external power plug is inserted into the socket slot 111, and the front end of the plug presses against the pressure rod cap 1311, causing the pressure rod 131 to move inward and compress the spring 132. The pressure rod 131 drives the U-shaped conductive piece 133 to rotate around the rotating shaft 134, so that the free end of the U-shaped conductive piece 133 approaches and makes close contact with the tail of the copper needle 120, realizing the conduction between the copper needle 120 and the power line 210, and the lamp tube is powered on normally. When the plug is pulled out, the pressure rod 131 returns to its original position under the elastic force of the spring 132, driving the U-shaped conductive piece 133 to rotate in the opposite direction, so that the U-shaped conductive piece 133 separates from the copper needle 120, and the copper needle 120 returns to an insulated and non-energized state, achieving the effect of preventing electric shock. The plug at the other end of the plug that is not inserted always remains open-circuit and insulated, so there is no risk of electric shock when touched by hand, and it is safe and reliable to use.

[0043] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shockproof lamp tube plug, comprising a plug cover (110) and a copper needle (120), a socket groove (111) is formed on the lower side of the outer surface of the plug cover (110), the copper needle (120) has two and is arranged at the inner center position of the socket groove (111), characterized in that: The anti-electric shock lamp tube plug also includes an anti-electric shock component, which includes a pair of elastic conductive mechanisms (130) symmetrically arranged on the outside of the two copper pins (120). The elastic conductive mechanism (130) is used to connect the copper pins (120) and the power line (210) inside the lamp tube when the external plug is inserted into the socket slot (111), and to disconnect the connection between the copper pins (120) and the power line (210) inside the lamp tube when the external plug is pulled out of the socket slot (111).

2. The anti-electric shock lamp plug according to claim 1, characterized in that: The elastic conductive mechanism (130) includes a pressure rod (131), a spring (132), a U-shaped conductive sheet (133), and a rotating shaft (134); the bottom of the socket groove (111) is provided with a through hole (112), a shaft hole (113), and a rotating groove (114), with the shaft hole (113) located above the rotating groove (114); the pressure rod (131) slides through the through hole (112) and one end of the pressure rod (131) is fixedly connected to one end of the U-shaped conductive sheet (133), and one end of the U-shaped conductive sheet (133) is also used to connect to the inside of the lamp tube. The power cord (210) of the part; the spring (132) passes through the pressure rod (131) and is compressed between the pressure rod (131) and the bottom surface of the socket groove (111); a rotating sleeve (1331) is provided in the middle position of the U-shaped conductive sheet (133), the rotating sleeve (1331) is located in the rotating groove (114), and the other end of the U-shaped conductive sheet (133) is initially located in front of the tail of the copper needle (120) and maintains a distance; the rotating shaft (134) passes through the shaft hole (113) and the rotating sleeve (1331) in sequence.

3. The anti-electric shock lamp plug according to claim 2, characterized in that: The head of the pressure bar (131) is provided with a pressure bar cap (1311).

4. The anti-electric shock lamp plug according to claim 2, characterized in that: The tail of the pressure rod (131) is provided with a nut (1312).

5. The anti-electric shock lamp tube plug according to claim 2, characterized in that: The shaft (134) is provided with threaded threads (1341) on the portion of the shaft hole (113) and a nut (1342) is provided on the top of the shaft (134). The shaft hole (113) is a threaded hole.

6. The anti-electric shock lamp plug according to claim 2, characterized in that: The socket groove (111) has a pair of through mounting holes (1111) at the bottom. The copper pin (120) has an annular flange (1211) and a circular cover plate (1212) arranged at intervals at its tail. The size of the annular flange (1211) is smaller than that of the circular cover plate (1212). The annular flange (1211) and the circular cover plate (1212) are located on the front and rear sides of the mounting holes (1111), respectively.

7. The anti-electric shock lamp tube plug according to claim 2, characterized in that: Both the plug cap (110) and the pressure rod (131) are made of insulating material.

8. An LED tube, characterized in that: The lamp includes a lamp holder (200), a lamp cover (300), a driver board (400), an LED light source board (500), and anti-electric shock lamp plugs (100) as described in any one of claims 1 to 7 respectively disposed at both ends of the lamp holder (200). The lamp cover (300) is installed at the bottom of the lamp holder (200), and the driver board (400) and the LED light source board (500) are respectively installed inside the lamp holder (200). The driver board (400) is connected to the elastic conductive mechanism (130) through a power line (210).