A quick-change lamp holder and installation method thereof

Abstract

The present invention relates to the field of lighting, and specifically to a quick-change lamp holder and a method for installing the same. A quick-change lamp holder comprises an insulator and a metal shell, one end of the insulator extends into the interior of the metal shell and is connected to the metal shell, a clamp is provided on the outer surface of the end of the insulator connected to the metal shell, a thread is provided in the middle of the metal shell, the insulator is connected to the metal shell by clamping the clamp into the thread, and a lamp foot is provided at the other end of the insulator. By providing a clamping connection between the insulator and the metal shell, it is convenient to install the insulator and the metal shell to form a whole, and by installing the lamp holder on the lamp body, the matching of the lamp holder and the lamp holder is improved. The problem of inconvenient installation and mismatch between the lamp holder and the lamp holder in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the field of lighting, and in particular to a quick-changeover lamp holder and a mounting method thereof. Background Art

[0002] High-intensity gas discharge lamps are widely used in indoor and outdoor lighting such as roads, warehouses, and agriculture due to their high luminous efficiency, long life, and good color rendering. As an important part of the bulb, the lamp holder plays the role of power supply and fixation; the quality of its shell, the simplicity of installation, and the degree of versatility determine the product's market trend.

[0003] Traditional lamp holders are composed of metal shells and insulating parts (glass, ceramic). With the competition in the market, some manufacturers use low-quality ordinary insulators to assemble lamp holders. Because the lamp holders work in a high-temperature working environment for a long time, they are prone to cracking or discoloration under the action of electric fields and air, which eventually leads to reduced insulation performance and safety accidents. Secondly, the lamp holders of traditional light sources generally use E39 / E40 threaded lamp holders. Due to the long threaded part, the bulb needs to be rotated in the lamp holder for a long time during installation and replacement. What's more, the lamp holder contacts the lamp holder contact piece too tightly or too loosely during rotation, causing damage to the shrapnel or poor contact, thereby increasing the work intensity and difficulty of the user. Finally, due to the diversity and complexity of products on the market, some lamp holders and lamp holders are still not matched. Under the trend of globalization, the market also needs a lamp holder with strong versatility and higher cost performance to match the lamp holder to meet market demand.

[0004] In summary, it is of great significance to design and manufacture a lamp holder that is easy to install, has strong versatility, is resistant to high temperature, corrosion, has high insulation, low loss, and can withstand sudden changes in temperature. Summary of the invention

[0005] In order to solve the problems of inconvenient installation and mismatch between lamp cap and lamp holder in the prior art, the present invention proposes a quick-change lamp cap and its installation method, which solves the above technical problems. The technical solution of the present invention is as follows:

[0006] A quick-changeover lamp holder comprises an insulator and a metal shell, one end of the insulator extends into the interior of the metal shell and is connected to the metal shell, a clamping block is provided on the outer surface of the end of the insulator connected to the metal shell, a thread is provided in the middle of the metal shell, the insulator is connected to the metal shell by clamping the clamping block into the thread, and a lamp foot is provided at the other end of the insulator.

[0007] By providing a clamping connection between the insulator and the metal shell, it is convenient to install the insulator and the metal shell to form a whole, and by installing the lamp cap on the lamp body, the matching performance of the lamp cap and the lamp holder is improved.

[0008] Furthermore, the insulator is in the shape of a cylinder with a variable outer diameter, and the outer diameter of one end of the insulator connected to the metal shell is greater than the outer diameter of the other end of the insulator.

[0009] Furthermore, a hollow cavity is provided inside one end of the insulator connected to the metal shell, and two axially extending mounting holes are opened at the other end of the insulator. The mounting holes are communicated with the hollow cavity, and lamp pins are fixedly arranged in the mounting holes.

[0010] Furthermore, there are eight card blocks, which are evenly distributed along the circumference of the outer surface of the metal shell.

[0011] Furthermore, the mounting hole comprises a front hole, a middle hole and a rear hole which are connected in sequence, the front hole and the middle hole are circular holes, the aperture of the front hole is larger than the aperture of the middle hole, the rear hole is connected to the hollow cavity, and the aperture of the rear hole gradually increases in the direction approaching the hollow cavity.

[0012] Furthermore, the insulator is provided with heat dissipation holes, and the side wall of the insulator corresponding to the hollow cavity is provided with fixing holes.

[0013] Furthermore, there are two lamp pins, one of which is provided with a D-shaped column base, and the other of which is provided with an O-shaped column base.

[0014] Furthermore, the insulator is insulating ceramic, the metal shell is made of nickel-plated copper, the thread in the middle of the metal shell is 3-4 turns, and the lamp pin is made of stainless steel 304 by one-time die-casting.

[0015] A method for installing a quick-change lamp holder comprises the following steps:

[0016] S1. Place the lamp pin into the mounting hole of the insulator, and fix the lamp pin in the mounting hole by stamping in the mounting hole;

[0017] S2. Extend one end of the insulator provided with a clamping block into the interior of the metal shell, and the clamping block on the insulator is clamped into the thread in the middle of the metal shell to achieve the connection between the insulator and the metal shell.

[0018] Furthermore, it also includes S3, that a fixing hole is opened at one end of the insulator connected to the metal shell, and the metal shell is punched so that the punching residue extends into the fixing hole.

[0019] Based on the above technical solution, the technical effects that can be achieved by the present invention are:

[0020] 1. The quick-change lamp holder of the present invention has 8 clamping blocks on the insulator to match and contact with the metal shell, so as to realize the clamping connection between the insulator and the metal shell, facilitate the installation of the insulator and the metal shell to form a whole, and by installing the lamp holder on the lamp body, the matching of the lamp holder and the lamp holder is improved;

[0021] 2. The quick-change lamp holder of the present invention has lamp feet made of high-quality stainless steel 304 die-casting in one step, with high installation strength. The stainless steel 304 material can play a role in corrosion resistance and high temperature resistance. The lamp feet include two lamp feet, one lamp foot is provided with a D-shaped column base, and the other lamp foot is provided with an O-shaped column base, which is convenient for distinguishing the lamp head line (live wire) and the lamp tail line (neutral wire) to reduce the starting voltage of the bulb and prevent accidental electric shock. After the lamp foot is inserted into the lamp holder, it only needs to be rotated ≤1 / 4 circle to match the lamp holder, thereby reducing the difficulty of screwing the lamp head into the lamp holder. At the same time, the column base on the lamp foot can increase the contact area, making the contact closer and preventing the phenomenon of falling off or poor contact.

[0022] 3. The quick-change lamp holder of the present invention has an insulator made of insulating ceramic, which is made of 95% aluminum. The ceramic body and the mounting holes and heat dissipation holes on its surface are all formed in one step, and has the characteristics of firm structure, precise installation dimensions, clean and smooth ceramic surface, no cracks, high temperature resistance and corrosion resistance;

[0023] 4. The metal shell of the quick-change lamp holder of the present invention is made of copper plated with nickel. The base of the shell is copper, which has high conductivity. Then a special process is used to plate a nickel layer on the copper surface, which has the effect of oxidation resistance and corrosion resistance. The metal shell is rolled with 3-4 turns of thread to match and fix with the inner sleeve, which enhances its universal performance and reduces the difficulty of screwing the lamp holder into the lamp holder.

[0024] 5. The quick-change lamp holder of the present invention is provided with fixing holes and heat dissipation holes on the insulator. By punching the metal shell outside the insulator, the residual material after punching extends into the fixing holes, thereby achieving fixation between the insulator and the metal shell; the heat dissipation holes can be used to reduce the temperature inside the lamp holder and the lamp holder, thereby increasing the life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of the quick-change lamp holder of the present invention;

[0026] Figure 2 A bottom view of the quick-change lamp holder of the present invention;

[0027] Figure 3 It is a schematic structural diagram of the metal shell of the quick-change lamp holder of the present invention;

[0028] Figure 4A bottom view of the insulator and the lamp pin of the quick-change lamp holder of the present invention after being assembled;

[0029] Figure 5 for Figure 4 AA cross-section diagram;

[0030] In the figure: 1-metal shell; 11-thread; 2-insulator; 21-block; 22-hollow cavity; 23-mounting hole; 24-fixing hole; 3-lamp foot; 31-first lamp foot; 311-O-shaped column base; 32-second lamp foot; 321-D-shaped column base. DETAILED DESCRIPTION

[0031] The content of the present invention will be further described below in conjunction with the accompanying drawings.

[0032] like Figure 1-5 As shown, this embodiment provides a quick-change lamp holder, including a metal shell 1, an insulator 2 and a lamp pin 3, one end of the metal shell 1 is connected to one end of the insulator 2, and the other end of the insulator 2 is provided with the lamp pin 3.

[0033] The metal shell 1 is in the shape of a cylinder with two ends open. A thread 11 is provided in the middle of the metal shell 1. One end of the metal shell 1 is slightly expanded to facilitate connection with the lamp body. The other end of the metal shell 1 is connected to the insulator 2. Specifically, the end of the insulator 2 connected to the metal shell 1 can be inserted into the interior of the metal shell 1 and connected to the metal shell 1. The material of the metal shell is copper-plated nickel. Specifically, the metal shell uses copper with high conductivity to make the shell base, and then the nickel layer is plated on the surface of the shell base to play the role of oxidation resistance and corrosion resistance. Preferably, the thread 11 on the metal shell 1 is 3-4 turns, so as to match and fix with the inner sleeve of the lamp body, while enhancing its versatility.

[0034] The insulator 2 is cylindrical with a variable outer diameter, and the outer diameter of one end of the insulator 2 connected to the metal shell 1 is greater than the outer diameter of the other end of the insulator 2. A block 21 is provided on the outer surface of the end of the insulator 2 connected to the metal shell 1, and the block 21 protrudes from the outer surface of the insulator 2 and extends axially. There are multiple blocks 21, and multiple blocks 21 are arranged at intervals, so that the outer surface of the end of the insulator 2 connected to the metal shell 1 presents a "concave-convex" groove structure. Preferably, there are 8 blocks 21, and the 8 blocks 21 are evenly distributed on the outer surface of the end of the insulator 2 connected to the metal shell 1. By setting the block 21, the clamping connection between the insulator 2 and the metal shell 1 can be achieved. Specifically, when connected, the insulator 2 extends into the interior of the metal shell 1, and the clamping connection between the insulator 2 and the metal shell 1 is achieved by clamping the block 21 on the insulator 2 into the thread 11 of the metal shell 1.

[0035] A hollow cavity 22 is provided inside one end of the insulator 2 connected to the metal shell 1, and an axially extending mounting hole 23 is provided at the other end of the insulator 2. There are two mounting holes 23, which penetrate the other end of the insulator 2 and communicate with the hollow cavity 22. The mounting holes 23 are used to set the lamp pins 3. Specifically, the mounting holes 23 include a front section hole, a middle section hole and a rear section hole which are connected in sequence. The front section hole and the middle section hole are circular holes, and the aperture of the front section hole is larger than the aperture of the middle section hole. The rear section hole is connected with the hollow cavity 22, and the rear section hole is outwardly expanded, that is, the aperture of the rear section hole gradually increases in the direction close to the hollow cavity.

[0036] The insulator 2 is provided with heat dissipation holes and fixing holes 24. Specifically, the fixing holes 24 are located on the side wall of the insulator 2 corresponding to the hollow cavity 22. Preferably, the axis of the fixing hole 24 is perpendicular to the axis of the insulator 2; preferably, there are two fixing holes 24, and the two fixing holes are evenly distributed on the side wall of the insulator 2. By providing two fixing holes 24, after the insulator 2 and the metal shell 1 are snapped together, the metal shell 1 covers the insulator 2, and the metal shell 1 is stamped. The stamping margin extends into the interior of the fixing hole 24 of the insulator 2 and is twisted with the insulator 2, further enhancing the firmness between the insulator 2 and the metal shell 1.

[0037] The insulator 2 is an insulating ceramic made of 95% aluminum. The ceramic body and the mounting holes and heat dissipation holes on the surface are formed in one step, and have the characteristics of firm structure, precise installation dimensions, clean and smooth ceramic surface, and no cracks in the ceramic body. The insulation strength of 95% aluminum can reach 15KV / mm, and the expansion coefficient is low, and it can withstand sudden changes in temperature. The ceramic body connection adopts a design method of 8 "concave and convex" slots to match the metal shell; there are two fixing holes 21 on both sides of the ceramic body, and the axes of the two fixing holes 21 are perpendicular to the extension direction of the lamp foot 3.

[0038] The lamp pin 3 is installed in the mounting hole 23 of the insulator 2. There are two lamp pins 3, namely the first lamp pin 31 and the second lamp pin 32. The two lamp pins 3 are installed in the two mounting holes 23 respectively. The first lamp pin 31 and the second lamp pin 32 are metal lamp pins. One end of the first lamp pin 31 and the second lamp pin 32 is fixedly set in the mounting hole 23, and the other end of the first lamp pin 31 and the second lamp pin 32 both extend out of the mounting hole 23. The first lamp pin 31 and the second lamp pin 32 are both provided with axially extending through holes, so that the stem of the lamp body can pass through the two lamp pins. A column base is provided on one end of the two lamp pins extending out of the mounting hole 23. Preferably, an O-shaped column base 311 is provided on the first lamp pin 31, and a D-shaped column base 321 is provided on the second lamp pin 32. The two shapes of lamp pins correspond to the contact models inside the lamp holder and cannot be changed during the installation process. Such a design makes it easier to distinguish the lamp head line (live wire) and the lamp tail line (neutral wire), thereby reducing the starting voltage of the bulb and preventing accidental electric shock. After the lamp pin is inserted into the lamp holder, it only needs to be rotated ≤1 / 4 circle to match the lamp holder, thereby reducing the difficulty of screwing the lamp holder into the lamp holder. At the same time, the column base on the lamp pin can increase the contact area, making the contact closer and preventing it from falling off or poor contact.

[0039] Furthermore, the lamp pin 3 is mounted in the mounting hole 23 by stamping. Specifically, the first lamp pin 31 and the second lamp pin 32 are respectively placed in the two mounting holes 23, and the mounting holes are stamped by a stamping device to fix the lamp pin 3 and the insulator 2 to each other.

[0040] This embodiment also provides a method for installing a quick-change lamp holder, comprising the following steps:

[0041] S1. The lamp pin 3 is placed in the mounting hole 23 of the insulator 2, and the lamp pin 3 is fixed in the mounting hole 23 by stamping in the mounting hole 23;

[0042] S2. Extend one end of the insulator 2 provided with the clamping block into the metal shell 1, and the clamping block 21 on the insulator 2 is clamped into the thread 11 in the middle of the metal shell 1 to achieve the connection between the insulator 2 and the metal shell 1.

[0043] Furthermore, the method further includes reinforcing the metal shell 1 and the insulator 2, specifically, step S3. A fixing hole 24 is formed at one end of the insulator 2 connected to the metal shell 1, and the metal shell 1 is punched so that the punching residue extends into the fixing hole 24. Preferably, the axis of the fixing hole 24 is perpendicular to the axis of the insulator 2; preferably, there are two fixing holes 24, and the two fixing holes are evenly distributed on the side wall of the insulator 2.

[0044] The above-mentioned quick-change lamp holder structure and installation method enable the lamp holder to form an integral whole before use. When installed with the lamp body, the inner sleeve of the lamp body only needs to be extended into the interior of the metal shell and threadedly connected with the metal shell, which is very convenient to install. After the lamp holder is installed on the lamp body, it is convenient to match and connect with the lamp holder, and it has strong versatility.

[0045] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A quick-change lamp holder, comprising an insulator (2) and a metal shell (1), characterized in that: One end of the insulator (2) extends into the interior of the metal shell (1) and is connected to the metal shell (1); a clamping block (21) is provided on the outer surface of the end of the insulator (2) connected to the metal shell (1); a thread (11) is provided in the middle of the metal shell (1); the insulator (2) is connected to the thread (11) by clamping the clamping block (21) into the thread (11); and a lamp pin (3) is provided at the other end of the insulator (2); there are two lamp pins (3), one of which is provided with a D-shaped column base (321), and the other of which is provided with an O-shaped column base (311).

2. A quick-change lamp holder as claimed in claim 1, characterized in that: The insulator (2) is in the shape of a cylinder with a variable outer diameter, and the outer diameter of one end of the insulator (2) connected to the metal shell (1) is greater than the outer diameter of the other end of the insulator (2).

3. A quick-change lamp holder as claimed in claim 1 or 2, characterized in that: A hollow cavity (22) is provided inside one end of the insulator (2) connected to the metal shell (1), and two axially extending mounting holes (23) are provided at the other end of the insulator (2), the mounting holes (23) being in communication with the hollow cavity (22), and a lamp foot (3) is fixedly provided in the mounting holes (23).

4. A quick-change lamp holder as claimed in claim 3, characterized in that: There are eight clamping blocks (21), and the clamping blocks (21) are evenly distributed along the circumference of the outer surface of the metal shell (1).

5. A quick-change lamp holder as claimed in claim 3, characterized in that: The mounting hole (23) comprises a front hole, a middle hole and a rear hole which are connected in sequence, the front hole and the middle hole are circular holes, the diameter of the front hole is larger than the diameter of the middle hole, the rear hole is connected to the hollow cavity (22), and the diameter of the rear hole gradually increases in a direction approaching the hollow cavity (22).

6. A quick-change lamp holder as claimed in claim 4, characterized in that: The insulator (2) is provided with heat dissipation holes, and the side wall of the insulator (2) corresponding to the hollow cavity (22) is provided with fixing holes (24).

7. A quick-change lamp holder as claimed in claim 1, characterized in that: The insulator (2) is insulating ceramic, the metal shell (1) is made of nickel-plated copper, the thread (11) in the middle of the metal shell (1) is 3-4 turns, and the lamp foot (3) is made of stainless steel 304 by one-step die-casting.

8. A method for installing a quick-change lamp holder as claimed in any one of claims 3 to 4 and 6, characterized in that: The steps include: S1. Place the lamp pin into the mounting hole of the insulator, and fix the lamp pin in the mounting hole by stamping in the mounting hole; S2. Extend one end of the insulator provided with a clamping block into the interior of the metal shell, and the clamping block on the insulator is clamped into the thread in the middle of the metal shell to achieve the connection between the insulator and the metal shell.

9. The installation method according to claim 8, characterized in that: It also includes S3, a fixing hole is opened at one end of the insulator connected to the metal shell, and the metal shell is punched so that the punching residue extends into the fixing hole.

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