Welding-free dimmable lamp holder structure

Abstract

The utility model relates to lighting lamp accessory technical field, specifically disclose a kind of welding-free dimming lamp head structure, including lamp head shell, lamp head upper cover, fixed structure and reset structure, lamp head shell upper end is connected with lamp head upper cover, the upper surface of lamp head upper cover is equipped with fixed hole, the fixed structure is arranged in the fixed hole of the upper surface of lamp head upper cover, reset structure is arranged in the top of lamp head shell, reset structure includes fixed disc, telescopic rod, telescopic sleeve and spring, two telescopic rods are fixedly connected on the upper surface of fixed disc, one telescopic sleeve is respectively set in the upper end of two telescopic rods, spring is arranged in the inside of two telescopic sleeves, by being provided with reset structure, when bulb is installed, bulb top extrusion fixed disc, drive telescopic rod compression spring, and the resilience of spring will be reversely acted on fixed disc, so that metal spring tightly adheres to the conductive contact of bulb, maintains contact pressure by the spring force compensation, ensure stable transmission of current.

Description

Technical Field

[0001] This utility model relates to the field of lighting accessories technology, and in particular to a solderless dimming lamp head structure. Background Technology

[0002] Dimmable lighting fixtures are lighting devices that can flexibly adjust the brightness of light according to the user's needs. They can create a variety of indoor lighting environments, providing both bright light for work and soft, dim ambient light for relaxation. They are also energy-efficient, effectively reducing unnecessary energy consumption compared to non-dimmable lighting fixtures. In the current lighting market, dimmable lighting fixtures are widely used in various scenarios such as homes, hotels, and commercial venues.

[0003] Traditional dimmable lamp holders have many problems in practical applications. In the wiring process, most lamp holders use soldering to connect the power cord, which requires professional tools and a high level of technical skill. Solder-free lamp holders require connecting the neutral and live wires of the power cord to the neutral and live wire terminals of the lamp holder. However, the neutral and live wire terminals and the fixing points of the live wire terminals are directly stressed, which can easily lead to metal fatigue and breakage, causing open circuit faults. Ordinary lamp holders have a relatively simple method of fixing the bulb. During use, if the bulb is frequently plugged and unplugged or subjected to external vibration, it is easy for it to loosen, which can affect the conductivity stability and even cause problems such as poor contact and flickering, reducing the lighting effect and user experience. When there is a certain thickness difference between the bulb contacts or the lamp holder is slightly deformed after long-term use, it cannot automatically adjust the contact pressure, resulting in unstable conductivity. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a solderless dimming lamp head structure.

[0005] The solderless dimming lamp head structure provided by this utility model includes: a lamp head shell, a lamp head cover, a fixing structure, and a reset structure. The upper end of the lamp head shell is threadedly connected to the lamp head cover. A fixing hole is opened on the upper surface of the lamp head cover. A fixing structure is set inside the fixing hole on the upper surface of the lamp head cover. The fixing structure includes a fixing tube and a fixing ring. The fixing tube is fixedly connected to the inner wall of the fixing hole on the upper surface of the lamp head cover. A fixing ring is threadedly connected to the lower outer surface of the fixing tube. A reset structure is set inside the top of the lamp head shell. The reset structure includes a fixing disc, a telescopic rod, a telescopic sleeve, and a spring. Two telescopic rods are fixedly connected to the upper surface of the fixing disc. A telescopic sleeve is sleeved on the upper end of each of the two telescopic rods. The upper ends of the two telescopic sleeves are fixedly connected to the top of the lamp head shell. A spring is set inside each of the two telescopic sleeves.

[0006] Preferably, the upper surface of the lamp holder housing has two through holes, and the inner walls of the two through holes on the upper surface of the lamp holder housing are respectively fixedly connected to the neutral wire terminal and the live wire terminal. The inner wall of the lamp holder housing is fixedly connected to a metal spiral side contact, which is electrically connected to the neutral wire terminal. The lower end of the live wire terminal is fixedly connected to a metal spring, which is electrically connected to the live wire terminal.

[0007] Preferably, the lower end of the fixed tube has several expansion joints on its outer surface, and the lower end of the fixed tube has threads on the outer surface of the expansion joints.

[0008] Preferably, the inner wall of the fixing ring is provided with a threaded hole, and the outer surface of the fixing ring is provided with an anti-slip groove.

[0009] Preferably, the upper surface of the fixing disc has a fixing hole, the lower end of the metal spring is fixedly connected to the inner wall of the fixing hole on the upper surface of the fixing disc, and the lower end of the metal spring extends through the fixing hole on the upper surface of the fixing disc to the bottom of the fixing disc.

[0010] Preferably, one end of the telescopic rod is fixedly connected to a limiting plate inside the telescopic sleeve, the lower end of the spring is fixedly connected to the upper surface of the limiting plate, and the upper end of the spring is fixedly connected to the inner wall of the telescopic sleeve.

[0011] Compared with related technologies, the solderless dimming lamp head structure provided by this utility model has the following beneficial effects:

[0012] 1. By setting up a fixed structure with neutral and live wire terminals, the neutral and live wires of the power supply can be connected without soldering, greatly simplifying the installation process and reducing installation difficulty. After the power supply wire is inserted into the fixed tube, rotating the fixing ring causes the expansion joint at the bottom of the fixed tube to contract because the diameter of the fixing ring hole is smaller than the diameter of the lower end of the fixed tube, thus firmly fixing the wire inside the fixed tube. This effectively prevents the neutral and live wires of the power supply from being directly stressed by the neutral wire terminal and the fixing point of the live wire terminal, avoiding the situation where the wire is separated from the terminal, and greatly improving the safety and reliability of the circuit connection.

[0013] 2. With a reset structure, when the bulb is installed, the top of the bulb presses against the fixed disc, which in turn compresses the spring on the telescopic rod. The spring's rebound force acts in the opposite direction on the fixed disc, causing the metal spring to fit tightly against the bulb's conductive contacts. This elastic contact method can adapt to bulb contacts of different thicknesses, and when the bulb is slightly loose, the spring force compensates to maintain the contact pressure and ensure stable current transmission. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the solderless dimming lamp head structure provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the lamp holder housing and lamp holder cover of this utility model;

[0016] Figure 3 This is an exploded structural diagram of the fixing tube and fixing ring of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the telescopic sleeve of this utility model.

[0018] The following are labeled in the diagram: 1. Lamp holder housing; 2. Lamp holder cover; 3. Fixing structure; 4. Reset structure; 5. Fixing tube; 6. Fixing ring; 7. Fixing disc; 8. Telescopic rod; 9. Telescopic sleeve; 10. Spring; 11. Neutral wire terminal; 12. Live wire terminal; 13. Metal spiral side contact; 14. Metal spring; 15. Limiting plate. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figure 1 , Figure 2 and Figure 3 The lamp head housing includes: a lamp head shell 1, a lamp head cover 2, a fixing structure 3, and a reset structure 4. The upper end of the lamp head shell 1 is threadedly connected to the lamp head cover 2. A fixing hole is provided on the upper surface of the lamp head cover 2. The fixing structure 3 is provided inside the fixing hole on the upper surface of the lamp head cover 2. The fixing structure 3 includes a fixing tube 5 and a fixing ring 6. The fixing tube 5 is fixedly connected to the inner wall of the fixing hole on the upper surface of the lamp head cover 2. The fixing tube 5 is used to pass the power cord between the lamp head cover 2 and the lamp head shell 1. The fixing ring 6 is threadedly connected to the lower outer surface of the fixing tube 5. The reset structure 4 is provided at the top inside the lamp head shell 1. The reset structure 4 includes a fixing disc 7, a telescopic rod 8, and a telescopic sleeve 9. The lamp holder housing 10 is equipped with two telescopic rods 8 fixedly connected to the upper surface of the fixed disc 7. Each of the two telescopic rods 8 has a telescopic sleeve 9 fitted onto its upper end. The upper ends of the two telescopic sleeves 9 are fixedly connected to the top of the lamp holder housing 1. Each of the two telescopic sleeves 9 has a spring 10 installed inside it. When the bulb is installed, the top of the bulb will press against the fixed disc 7, which will in turn drive the telescopic rods 8 to compress the spring 10. The rebound force of the spring 10 will act in the opposite direction on the fixed disc 7, so that the metal spring 14 fits tightly against the conductive contact of the bulb, ensuring stable conductivity. The elasticity can adapt to bulb contacts of different thicknesses, or maintain contact pressure through elastic compensation when the bulb is slightly loose.

[0021] In the specific implementation process, two through holes are opened on the upper surface of the lamp holder housing 1. The inner walls of the two through holes on the upper surface of the lamp holder housing 1 are respectively fixedly connected to the neutral wire terminal 11 and the live wire terminal 12. The neutral wire terminal 11 is used to connect the neutral wire of the power supply wire, and the live wire terminal 12 is used to connect the live wire of the power supply wire. The inner wall of the lamp holder housing 1 is fixedly connected to the metal spiral side contact 13, which is electrically connected to the neutral wire terminal 11. When the bulb with the screw is screwed in, the metal screw of the bulb and the metal spiral side contact 13 are in close contact, conducting the neutral wire current to the bulb and forming part of the conductive circuit. The lower end of the live wire terminal 12 is fixedly connected to the metal spring 14, which is electrically connected to the live wire terminal 12.

[0022] Among them, several expansion joints are provided on the outer surface of the lower end of the fixed tube 5, and threads are provided on the outer surface of the expansion joints at the lower end of the fixed tube 5. The expansion joints on the outer surface of the lower end of the fixed tube 5 enable the lower end of the fixed tube 5 to have elastic contraction ability, and can be tightened inward when the fixed ring 6 is tightened.

[0023] The fixing ring 6 has a threaded hole on its inner wall and an anti-slip groove on its outer surface. The anti-slip groove increases the friction on the outer surface of the fixing ring 6, making it easier for the user to rotate the fixing ring 6. The diameter of the hole in the fixing ring 6 is smaller than the diameter of the lower end of the fixing tube 5. When the fixing ring 6 is screwed into the lower end of the outer surface of the fixing tube 5, the expansion joint on the lower end of the fixing tube 5 contracts, making the diameter of the hole in the fixing tube 5 smaller. This fixes the power wire that passes through the fixing tube 5 inside the fixing tube 5, preventing the neutral and live wires of the power wire from being directly subjected to force at the fixing points of the neutral wire terminal 11 and the live wire terminal 12, and preventing the neutral and live wires of the power wire from detaching from the neutral wire terminal 11 and the live wire terminal 12.

[0024] The upper surface of the fixed disc 7 has a fixing hole. The lower end of the metal spring 14 is fixedly connected to the inner wall of the fixing hole on the upper surface of the fixed disc 7. The lower end of the metal spring 14 extends through the fixing hole on the upper surface of the fixed disc 7 to the bottom of the fixed disc 7. Under the elastic force of the spring 10, the fixed disc 7 pushes the metal spring 14 to press against the live wire contact of the bulb, so as to conduct the live wire current to the bulb and complete the conductive circuit.

[0025] The telescopic rod 8 is located inside the telescopic sleeve 9, with one end fixedly connected to a limiting piece 15. The lower end of the spring 10 is fixedly connected to the upper surface of the limiting piece 15, and the upper end of the spring 10 is fixedly connected to the inner wall of the telescopic sleeve 9. The limiting piece 15 is fixed at the end of the telescopic rod 8 located inside the telescopic sleeve 9 to prevent the telescopic rod 8 from detaching from the telescopic sleeve 9. At the same time, it serves as the lower support point of the spring 10 to ensure that the elastic force of the spring 10 can stably act on the telescopic rod 8.

[0026] The working principle of this utility model is as follows: First, the neutral and live wires of the power supply are respectively threaded into the fixing tube 5 of the lamp head cover 2. At this time, the lower end of the fixing tube 5 is kept in a natural state due to the expansion joint, and the wires can pass through smoothly. Then, the fixing ring 6 is rotated, and the inner thread of the fixing ring 6 engages with the thread at the lower end of the fixing tube 5. Because the diameter of the hole in the fixing ring 6 is smaller than the diameter at the lower end of the fixing tube 5, tightening will squeeze the expansion joint of the fixing tube 5, causing it to contract. The inner wall of the fixing tube 5 clamps the wires. The anti-slip groove on the outer surface of the fixing ring 6 allows for easy operation, thereby fixing the wires. Inside the fixed tube 5, to prevent the wires from being directly stressed by the fixed points of the terminals when pulled by external forces, thus preventing detachment, the neutral wire is then connected to the neutral terminal 11 inside the through hole of the lamp holder housing 1, and the live wire is connected to the live terminal 12. The circuit connection can be completed without soldering. After that, the bulb is installed by screwing the bulb with the screw head into the lamp holder housing 1 from below. The bulb screw head contacts the metal spiral side contact 13 on the inner wall of the lamp holder housing 1. At the same time, the top of the bulb presses upward against the fixing disc 7, and the fixing disc 7 moves upward, causing the two telescopic rods 8 to retract. As the telescopic rod 8 retracts into the telescopic sleeve 9, the limiting piece 15 at the end of the telescopic rod 8 compresses the spring 10 inside the telescopic sleeve 9. The spring 10, supported by the limiting piece 15, generates a rebound force, pushing the fixed disc 7 downwards. The fixed disc 7 then causes the metal spring piece 14 connected at its lower end to press tightly against the live wire contact at the bottom of the bulb. The upper end of the metal spring piece 14 is connected to the live wire terminal 12. At this time, the live wire current is conducted to the bulb through the live wire terminal 12 and the metal spring piece 14, while the neutral wire current is conducted to the bulb through the neutral wire terminal 11 and the metal spiral side contact 13. The contact conduction is transmitted to the bulb, forming a complete conductive circuit. During use, if the bulb is slightly loose or the contact thickness is different, the elasticity of the spring 10 will adjust the pressure of the metal spring 14 in real time through the telescopic rod 8 and the fixed disc 7 to ensure stable contact. At the same time, the cooperation between the telescopic rod 8 and the telescopic sleeve 9 restricts the movement direction of the fixed disc 7 to avoid deviation that could lead to poor contact. The lamp holder housing 1 and the lamp holder cover 2 are connected by threads to form a closed space, protecting the neutral and live wires of the internal power supply wires, the neutral wire terminal 11 and the live wire terminal 12.

[0027] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A solderless dimming lamp holder structure, comprising a lamp holder housing (1), a lamp holder cover (2), a fixing structure (3), and a resetting structure (4), characterized in that, The upper end of the lamp head housing (1) is threadedly connected to the lamp head cover (2). The upper surface of the lamp head cover (2) is provided with a fixing hole. The fixing hole on the upper surface of the lamp head cover (2) is provided with a fixing structure (3). The fixing structure (3) includes a fixing tube (5) and a fixing ring (6). The fixing tube (5) is fixedly connected to the inner wall of the fixing hole on the upper surface of the lamp head cover (2). The lower end of the fixing tube (5) is threadedly connected to the outer surface of the fixing ring (6). The top of the lamp head housing (1) is provided with a reset structure (4). The reset structure (4) includes a fixing disc (7), a telescopic rod (8), a telescopic sleeve (9), and a spring (10). The upper surface of the fixing disc (7) is fixedly connected to two telescopic rods (8). The upper ends of the two telescopic rods (8) are respectively fitted with a telescopic sleeve (9). The upper ends of the two telescopic sleeves (9) are fixedly connected to the top of the lamp head housing (1). The two telescopic sleeves (9) are each provided with a spring (10).

2. The solderless dimming lamp holder structure according to claim 1, characterized in that, The upper surface of the lamp holder housing (1) has two through holes. The inner walls of the two through holes on the upper surface of the lamp holder housing (1) are respectively fixedly connected to the neutral wire terminal (11) and the live wire terminal (12). The inner wall of the lamp holder housing (1) is fixedly connected to a metal spiral side contact (13). The metal spiral side contact (13) is electrically connected to the neutral wire terminal (11). The lower end of the live wire terminal (12) is fixedly connected to a metal spring (14). The metal spring (14) is electrically connected to the live wire terminal (12).

3. The solderless dimming lamp holder structure according to claim 1, characterized in that, The lower end of the fixed tube (5) has several expansion joints on its outer surface, and the lower end of the fixed tube (5) has threads on its outer surface at the expansion joints.

4. The solderless dimming lamp holder structure according to claim 1, characterized in that, The inner wall of the fixing ring (6) is provided with a threaded hole, and the outer surface of the fixing ring (6) is provided with an anti-slip groove.

5. The solderless dimming lamp holder structure according to claim 1, characterized in that, The upper surface of the fixed disc (7) is provided with a fixing hole, and the lower end of the metal spring (14) is fixedly connected to the inner wall of the fixing hole on the upper surface of the fixed disc (7). The lower end of the metal spring (14) extends through the fixing hole on the upper surface of the fixed disc (7) to the bottom of the fixed disc (7).

6. The solderless dimming lamp holder structure according to claim 1, characterized in that, The telescopic rod (8) is located inside the telescopic sleeve (9) with one end fixedly connected to a limiting piece (15), the lower end of the spring (10) is fixedly connected to the upper surface of the limiting piece (15), and the upper end of the spring (10) is fixedly connected to the inner wall of the telescopic sleeve (9).

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