High-frequency ceramic lamp holder
By designing a high-frequency ceramic lamp holder structure and mixing hydrogen and xenon gas, the problems of electrode damage and glass tube breakage caused by high-frequency electric arc in the lamp holder were solved, achieving efficient and stable discharge and lighting effects, suitable for complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-13
AI Technical Summary
The existing lamp holder has a circular arc structure in the ceramic insulation base, which causes high-frequency electric arcs, resulting in electrode damage and glass tube breakage.
Design a high-frequency ceramic lamp holder with a structure consisting of a positive terminal, a negative terminal, and an insulating end. Insulation is achieved through the insulating end to increase the creepage distance. A mixture of hydrogen and xenon gas is used to achieve instant on/off illumination. The insulation strength and conductivity are improved by using high-frequency ceramic materials and metallic nickel materials.
It effectively suppresses the generation of high-frequency electric arcs, avoids electrode ablation and glass tube breakage, improves the insulation strength and service life of lamps, adapts to complex environments, reduces power consumption, and improves luminous efficacy and spectral control capabilities.
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Figure CN223993256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lighting device, and more particularly to a high-frequency ceramic lamp holder. Background Technology
[0002] Lighting sources are divided into two types: solid-state light sources and gas light sources. Common solid-state light sources include incandescent lamps and LED light sources. However, incandescent lamps have low luminous efficacy and short lifespan. Although LED light sources have high luminous efficacy and long lifespan, they suffer from severe light decay when used for high-power lighting.
[0003] Common gas light sources are divided into low-pressure gas discharge lamps and high-pressure gas discharge lamps. Among them, low-pressure gas discharge lamps include straight tube fluorescent lamps and spiral tube energy-saving lamps. However, straight tube fluorescent lamps and spiral tube energy-saving lamps have a relatively short service life.
[0004] High-pressure gas discharge lamps include high-pressure sodium lamps and metal halide lamps. However, high-pressure sodium lamps have poor light quality, with a color rendering index of only 30%. When used for road lighting, they have low visibility of objects and pose safety hazards. On the other hand, although metal halide lamps have better light quality, a color rendering index of more than 80%, and a longer lifespan, they are high-pressure gas discharge lamps and have difficulty achieving ionization, resulting in the inability to light up immediately upon switching on.
[0005] In particular, in the lamp holder part of existing lamps, since most of the ceramic insulating bases are arc-shaped, high-frequency electric arcs will be generated at the lamp holder position when the lamp is powered on. The generation of high-frequency electric arcs will directly cause varying degrees of damage to the electrodes and cause the glass tube to break. Utility Model Content
[0006] To address the above-mentioned technical problems, this utility model provides a high-frequency ceramic lamp holder. In this high-frequency ceramic lamp holder, no high-frequency electric arc is generated at the lamp holder position, which can reduce the risk of arc discharge and avoid electrode damage and glass tube breakage.
[0007] Therefore, the technical solution of this utility model is a high-frequency ceramic lamp holder, including a lamp holder assembly, which consists of a positive terminal, a negative terminal, and an insulating end, with the positive terminal and the negative terminal being insulated from each other through the insulating end;
[0008] The positive terminal is located at the upper part of the lamp holder assembly, the insulating end is located at the middle part of the lamp holder assembly, and the negative terminal is located at the lower part of the lamp holder assembly. The positive terminal, the insulating end, and the negative terminal are fixedly connected in sequence.
[0009] The positive end has a hollow structure, with an internal cavity and external threads on its outer surface.
[0010] The insulating end includes an upper insulating end section, an intermediate insulating end section, and a lower insulating end section, which are arranged sequentially from top to bottom. The upper end of the upper insulating end section is fixedly connected to the lower end of the positive terminal.
[0011] The upper section, middle section, and lower section of the insulating end together form an insulating end with a T-shaped cylindrical structure.
[0012] The negative terminal includes a negative terminal conductive cover and a negative terminal conductive post. The negative terminal conductive cover is located at the lower section of the negative terminal, and the negative terminal conductive post is located at the radial middle of the negative terminal conductive cover. The negative terminal conductive cover is located outside the lower section of the insulating end and is fixedly connected to the lower section of the insulating end. The negative terminal conductive post is located inside the insulating end. One end of the negative terminal conductive post is fixedly connected to the negative terminal conductive cover, and the other end of the negative terminal conductive post communicates with the internal receiving chamber of the positive terminal.
[0013] Preferably, the middle section of the insulating end is inverted trapezoidal in shape.
[0014] Preferably, the upper end of the lamp head assembly is provided with a limiting bracket assembly, a lamp wick assembly and a discharge tube assembly, and the lower end of the lamp wick assembly is fixedly connected to the upper end of the lamp head assembly.
[0015] The lamp wick assembly includes a lamp wick body, and the upper end of the lamp wick body is respectively provided with a negative electrode lead-out rod and a positive electrode lead-out rod, and one end of the negative electrode lead-out rod and the positive electrode lead-out rod are respectively fixed inside the lamp wick body;
[0016] The discharge tube assembly includes a gas discharge tube, with a positive electrode rod and a negative electrode rod on both sides of the gas discharge tube, and one end of the positive electrode rod and the negative electrode rod are respectively connected to the two ends inside the gas discharge tube.
[0017] One end of the negative lead wire leading rod located inside the lamp core body is connected to the negative terminal conductive post on the lamp head assembly, and the other end of the negative lead wire leading rod is connected to the other end of the negative lead wire leading rod. One end of the positive lead wire leading rod located inside the lamp core body is connected to the positive terminal on the lamp head assembly, and the other end of the positive lead wire leading rod is connected to the other end of the limiting bracket assembly.
[0018] A power-conducting circuit is formed between the positive electrode guide rod, the limiting bracket assembly, the positive electrode lead-out guide rod, the positive and negative terminals, the negative electrode lead-out guide rod, and the negative electrode guide rod.
[0019] The negative electrode lead-out rod, the positive electrode lead-out rod, and the limiting bracket assembly together provide fixed support for the discharge tube assembly.
[0020] Preferably, the interior of the gas discharge tube is a vacuum-sealed structure, and the interior of the gas discharge tube contains a mixture of hydrogen and xenon gas.
[0021] Preferably, the limiting bracket assembly includes a limiting ring and a supporting guide rod. The limiting ring is located at the upper section of the limiting bracket assembly, and the supporting guide rod is located at the lower section of the limiting bracket assembly. The limiting ring has a circular structure and is arranged laterally, while the supporting guide rod is arranged longitudinally.
[0022] The discharge tube assembly also includes two connecting posts, which are fixedly connected to the upper and lower sides of the gas discharge tube, respectively. The discharge tube assembly is arranged vertically.
[0023] The positive electrode rod and the negative electrode rod are located inside the two connecting posts respectively. The end of the positive electrode rod away from the gas discharge tube is fixedly connected to the upper end of the support rod, and the lower end of the support rod is fixedly connected to the positive electrode lead-out rod.
[0024] Preferably, an insulating sleeve is provided at the middle position of the support guide rod, and a degassing agent is provided at the upper end of the insulating sleeve on the support guide rod. The degassing agent, the insulating sleeve, and the position where the support guide rod connects to the positive electrode lead-out guide rod are sequentially attached.
[0025] Preferably, a first electrode connecting rod is provided between the end of the positive electrode rod away from the gas discharge tube and the upper end of the supporting rod. The first electrode connecting rod is U-shaped. One end of the U-shaped first electrode connecting rod is fixedly connected to the end of the positive electrode rod away from the gas discharge tube, and the other end of the U-shaped first electrode connecting rod is fixedly connected to the upper end of the supporting rod.
[0026] Preferably, a first extension guide rod is provided between the positive electrode guide rod and the first electrode connecting guide rod. The first extension guide rod is longitudinally arranged inside the lower section of the outer shell, and the two ends of the first extension guide rod are fixedly connected to the positive electrode guide rod and the first electrode connecting guide rod, respectively.
[0027] A second extension rod and a second electrode connecting rod are respectively provided between the negative electrode lead-out rod and the negative electrode rod. The second extension rod is arranged longitudinally, and the second electrode connecting rod is arranged laterally.
[0028] One end of the second extension rod is fixedly connected to the negative electrode rod, the other end of the second extension rod is fixedly connected to one end of the second electrode connecting rod, and the other end of the second electrode connecting rod is fixedly connected to the negative electrode wire lead-out rod.
[0029] The negative electrode lead-out rod is longitudinally positioned at the upper end of the lamp core body, while the positive electrode lead-out rod is transversely positioned at the upper end of the lamp core body.
[0030] Preferably, the connections between the U-shaped first electrode connecting rod and the first electrode connecting rod, the U-shaped first electrode connecting rod and the first extension rod, the first extension rod and the positive electrode connecting rod, the negative electrode connecting rod and the second extension rod, the second extension rod and the second electrode connecting rod, the second electrode connecting rod and the negative electrode wire lead-out rod, the negative electrode wire lead-out rod and the negative electrode wire, the positive electrode wire and the positive electrode wire lead-out rod, and the positive electrode wire lead-out rod and the first electrode connecting rod are all fixed by welding.
[0031] Preferably, the outer diameter of the positive end is 40mm±2mm, the height of the positive end is 30mm±2mm, the outer diameter of the upper section of the insulating end is 40mm±2mm, the height of the upper section of the insulating end is 5mm±1mm, the maximum outer diameter of the middle section of the inverted trapezoidal insulating end is 14mm±1mm, the minimum outer diameter of the middle section of the inverted trapezoidal insulating end is 10mm±1mm, the outer diameter of the lower section of the insulating end is 10mm±1mm, and the total height of the middle section and the lower section of the inverted trapezoidal insulating end is 9mm±1mm.
[0032] The beneficial effects of this utility model are:
[0033] Increasing the total height of the middle and lower sections of the inverted trapezoidal insulation end to mm ± mm increases the creepage distance during discharge. The main benefits of increasing the creepage distance include:
[0034] (1) Enhanced insulation strength and longer creepage distance can effectively block the conductive path formed by pollutants (such as dust and water stains), reducing the risk of leakage tracking and surface discharge.
[0035] (2) Adapt to complex environments. In scenarios with high pollution levels such as humidity and dust, extending the creepage distance can reduce the negative impact of environmental factors on insulation performance.
[0036] (3) To increase the overall structural safety, firstly, according to relevant standards, the discharge equipment needs to meet the withstand voltage requirements by increasing the creepage distance to prevent arc breakdown from causing safety accidents.
[0037] Secondly, by lengthening the negative end lamp post, the discharge path along the insulation surface is significantly lengthened, requiring a higher voltage to break down the insulation layer (according to the formula U=E⋅d, where d is the creepage distance), thereby suppressing the generation of high-frequency arcs and preventing electrode ablation or glass tube breakage.
[0038] Furthermore, the extended creepage path can reduce leakage current density (I=J⋅S, where S is the effective area), reduce the risk of partial discharge caused by moisture bridging or dirt conduction, and extend the life of the lamp.
[0039] Furthermore, a long creepage path can disperse the high-frequency charge distribution, reduce the electric field concentration effect, and prevent the insulating material from breaking down due to electrical stress.
[0040] Meanwhile, by lengthening the lamp post and adopting a spiral or multi-segment insulation structure, the effective creepage path is expanded without increasing the overall size, while reserving space for optical components and heat dissipation structures. Attached Figure Description
[0041] Figure 1 This is a schematic diagram of the lamp holder assembly structure in this utility model;
[0042] Figure 2 This is a utility model Figure 1 Sectional view of AA;
[0043] Figure 3 This is a complete structural front view of the present invention applied to a lighting fixture;
[0044] Figure 4 This is a top view of the complete structure of this utility model applied to a lighting fixture;
[0045] Figure 5 This is a schematic diagram of the outer shell structure of this utility model;
[0046] Figure 6 This is a schematic diagram of the discharge tube assembly structure in this utility model;
[0047] Figure 7 This is a schematic diagram of the lamp wick assembly structure in this utility model;
[0048] Figure 8 This is a schematic diagram of the discharge tube assembly structure in this utility model.
[0049] Explanation of symbols in the diagram:
[0050] 1. Outer shell; 101. Upper section of outer shell; 102. Lower section of outer shell; 2. Limiting bracket assembly; 201. Limiting ring; 202. First electrode connecting guide rod; 203. Supporting guide rod; 204. Insulating sleeve; 205. Degassing agent; 3. Lamp wick assembly; 301. Lamp wick body; 302. Positive electrode wire; 303. Negative electrode wire; 304. Negative electrode wire lead-out guide rod; 305. Positive electrode wire lead-out guide rod; 4. Lamp holder assembly; 401. Positive terminal; 401 01. Receiving chamber; 402. Negative end; 40201. Negative end conductive cover; 40202. Negative end conductive post; 403. Insulating end; 40301. Upper section of insulating end; 40302. Middle section of insulating end; 40303. Lower section of insulating end; 5. Discharge tube assembly; 501. Gas discharge tube; 502. Positive electrode rod; 503. Negative electrode rod; 504. Connecting post; 6. First extension rod; 7. Second extension rod; 8. Second electrode connecting rod. Detailed Implementation
[0051] The present invention will be further described below with reference to the embodiments.
[0052] pass Figures 1-8 As can be seen, the quantum lamp has an outer shell 1, a limiting bracket assembly 2, a lamp wick assembly 3, a lamp head assembly 4, and a discharge tube assembly 5. The limiting bracket assembly 2, the lamp wick assembly 3, and the discharge tube assembly 5 are all located inside the outer shell 1, and the lamp head assembly 4 is fixedly connected to the bottom end of the outer shell 1.
[0053] The lamp wick assembly 3 includes a lamp wick body 301. The upper end of the lamp wick body 301 is provided with a negative electrode lead-out rod 304 and a positive electrode lead-out rod 305. One end of the negative electrode lead-out rod 304 and the positive electrode lead-out rod 305 are respectively fixed inside the lamp wick body 301. The negative electrode lead-out rod 304 and the positive electrode lead-out rod 305 can realize the transmission of electricity.
[0054] The discharge tube assembly 5 includes a gas discharge tube 501, which is an olive-shaped unit structure. It is made of high-purity alumina powder and manufactured by a one-time molding process without secondary machining. It has high mechanical strength and strong anti-resonance performance.
[0055] The gas discharge tube 501 has a positive electrode rod 502 and a negative electrode rod 503 on both sides. One end of the positive electrode rod 502 and the negative electrode rod 503 are connected to the two ends inside the gas discharge tube 501, respectively. After being energized, arc discharge is achieved.
[0056] The lamp holder assembly 4 includes a positive terminal 401, a negative terminal 402, and an insulating terminal 403. The positive terminal 401 and the negative terminal 402 are insulated from each other by the insulating terminal 403.
[0057] One end of the negative lead wire lead rod 304 located inside the lamp core body 301 is connected to the positive terminal 401 of the lamp head assembly 4, and the other end of the negative lead wire lead rod 304 is connected to the other end of the negative lead rod 503. One end of the positive lead wire lead rod 305 located inside the lamp core body 301 is connected to the negative terminal 402 of the lamp head assembly 4, and the other end of the positive lead wire lead rod 305 is connected to the other end of the limiting bracket assembly 2.
[0058] A complete power-carrying circuit is formed between the positive electrode guide rod 502, the limiting bracket assembly 2, the positive electrode wire lead-out guide rod 305, the lamp holder assembly 4, the negative electrode wire lead-out guide rod 304, and the negative electrode guide rod 503.
[0059] The negative electrode lead-out rod 304, the positive electrode lead-out rod 305, and the limiting bracket assembly 2 together form a fixed support for the discharge tube assembly 5, fixing the discharge tube assembly 5 in the middle position of the outer shell 1.
[0060] Regarding the specific discharge principle of the gas discharge tube 501, the interior of the gas discharge tube 501 is a vacuum-sealed structure. The interior of the gas discharge tube 501 contains a mixture of hydrogen and xenon gas. When energized, hydrogen gas is easily ionized due to its low ionization energy level. The principle of instant lighting is that when the special gas (hydrogen) reaches a very low pressure, it is easily broken down and generates a gas arc under this voltage, achieving the instant lighting effect.
[0061] During arc discharge, the gas pressure inside the gas discharge tube 501 of this quantum lamp is at a medium pressure, i.e., less than 0.5 MPa. The working gas pressure of the gas discharge tube 501 and the purpose of adding hydrogen gas to the gas discharge tube 501 are both to achieve instant lighting of the light source, which is the main technical point of this utility model.
[0062] More importantly, mixing hydrogen and xenon can reduce the starting voltage of the lamp. Because hydrogen has a low ionization energy (about 13.6 eV) and is easy to ionize, it can act as a "combustion accelerant" to promote discharge start-up. Although xenon has a higher ionization energy (about 121.3 eV), in the mixed gas, hydrogen generates free electrons through collision ionization, providing ionization seeds for xenon, thereby reducing the overall system's starting voltage requirement.
[0063] Furthermore, it can improve discharge stability. Due to the large atomic weight and long excited state lifetime of xenon, it can maintain a stable plasma channel and reduce the risk of arc oscillation or extinction. The high thermal conductivity and diffusivity of hydrogen can dissipate heat quickly, suppress plasma contraction caused by local overheating, and further stabilize the discharge.
[0064] At the same time, it can optimize the spectral output. Since hydrogen produces strong ultraviolet light (Lyman series) and visible light (such as Balmer lines) when it is discharged, and xenon emits strong ultraviolet light (about 170-200 nm) and visible light (such as the excited state transition of Xe⁺) under high voltage discharge, the two can be mixed to expand the spectral range, making it more suitable for scenarios that require a wide wavelength light source (such as ultraviolet curing, fluorescence detection or laser pump source).
[0065] Moreover, xenon itself is non-toxic and chemically stable. When mixed, it can reduce the risk of leakage of a single gas and is highly safe. Therefore, the mixture of hydrogen and xenon gas achieves lower energy consumption, higher stability and more flexible spectral control through synergistic effect, and even becomes an ideal choice for special discharge technology.
[0066] To achieve better structural stability, the outer shell 1 is composed of an upper section 101 and a lower section 102. The upper section 101 is a semi-circular structure, and the lower section 102 is a cylindrical structure.
[0067] The limiting bracket assembly 2 includes a limiting ring 201 and a support guide rod 203. The limiting ring 201 is located in the upper section of the limiting bracket assembly 2, and the support guide rod 203 is located in the lower section of the limiting bracket assembly 2. The limiting ring 201 is arranged laterally inside the upper section 101 of the outer shell, and the support guide rod 203 is arranged longitudinally on one side inside the lower section 102 of the outer shell.
[0068] Since the upper section 101 of the outer shell is a semi-circle that is narrower at the top and wider at the bottom, the limiting ring 201 can play a limiting role inside the upper section 101 of the outer shell, reducing the swaying amplitude of the limiting bracket assembly 2 inside the outer shell 1. The shape of the upper section 101 of the outer shell can also be designed as other shapes and structures that can play a limiting role for the upper section 101 of the outer shell.
[0069] The discharge tube assembly 5 also includes two connecting posts 504. The two connecting posts 504 are fixedly connected to the upper and lower sides of the gas discharge tube 501 respectively. The discharge tube assembly 5 is longitudinally arranged in the middle position inside the lower section 102 of the outer shell.
[0070] The positive electrode rod 502 and the negative electrode rod 503 are located inside the two connecting posts 504 respectively. The end of the positive electrode rod 502 away from the gas discharge tube 501 is fixedly connected to the upper end of the support rod 203, and the lower end of the support rod 203 is fixedly connected to the positive electrode lead-out rod 305.
[0071] To further increase the overall stability of the limiting bracket assembly 2, the limiting ring 201 is fitted with the inner circumference of the upper section 101 of the outer shell. By directly contacting and fixing the limiting ring 201 with the inner circumference of the upper section 101 of the outer shell, the problem of the limiting ring 201 shaking can be avoided, thereby preventing the overall lamp from shaking due to external factors and causing the limiting ring 201 and the outer shell 1 to collide with each other.
[0072] In order to eliminate corona discharge and corresponding tip discharge at the opposite end, an insulating sleeve 204 is provided at the middle position on the support guide rod 203. The insulating sleeve 204 can be made of materials with insulating properties such as ceramics and glass fiber.
[0073] A degassing agent 205 is provided on the support guide rod 203 at the upper end of the insulating sleeve 204. The degassing agent 205 is mainly used to remove or reduce the residual oxygen, water vapor and other impurities in the outer casing 1 after sealing, thereby protecting the sensitive components inside and extending the life of the bulb.
[0074] To increase the stability of the insulating sleeve 204 during application, the degassing agent 205, the insulating sleeve 204, and the support guide rod 203 are sequentially and closely fitted at the connection points with the positive electrode lead-out guide rod 305. This prevents damage to related components caused by the sliding of the insulating sleeve 204 when the lamp is shaken. Figure 1 As can be seen, the insulating sleeve 204 is located radially symmetrically in the gas discharge tube 501, which can avoid the problem of current interference and eliminate corona during discharge.
[0075] To improve the position and stability of the discharge tube assembly 5, a first electrode connecting rod 202 is provided between the end of the positive electrode rod 502 away from the gas discharge tube 501 and the upper position of the support rod 203. The first electrode connecting rod 202 is U-shaped. One end of the U-shaped first electrode connecting rod 202 is fixedly connected to the end of the positive electrode rod 502 away from the gas discharge tube 501, and the other end of the U-shaped first electrode connecting rod 202 is fixedly connected to the upper position of the support rod 203.
[0076] By bending the first electrode connecting rod 202 into a U-shaped structure, the stress on the first electrode connecting rod 202 can be eliminated to the maximum extent, increasing the stability of the first electrode connecting rod 202 structure. After bending, the first electrode connecting rod 202 will not exhibit significant stress deformation during long-term use of the lamp. On the one hand, this ensures that the discharge tube assembly 5 will not experience significant displacement. On the other hand, it avoids the problem of loose connection between the first electrode connecting rod 202 and the support rod 203 and the positive electrode rod 502 due to stress deformation of the first electrode connecting rod 202.
[0077] To meet the assembly standards of lamps of different heights and widths, the negative lead wire guide rod 304 is longitudinally arranged inside the lower section 102 of the housing, and the positive lead wire guide rod 305 is transversely arranged inside the lower section 102 of the housing. The two are arranged in the same direction, which on the one hand enables quick installation and convenient operation, and on the other hand prevents the problem of tip discharge caused by reverse arrangement.
[0078] More importantly, depending on the actual height and diameter of the outer casing 1, for example, when the outer casing 1 is tall, the length of the negative electrode lead-out rod 304 needs to be increased to ensure that the gas discharge tube 501 is located in the longitudinal middle position inside the outer casing 1, thereby ensuring the uniformity of the light source distribution and ensuring efficient lighting effect. For another example, when the outer diameter of the outer casing 1 is large, the size of the corresponding gas discharge tube 501 will usually be larger. In this case, the length of the positive electrode lead-out rod 305 needs to be increased to ensure that the gas discharge tube 501 and the supporting rod 203 have a sufficient safe distance, to minimize the problem of current interference and ensure the normal operation of gas discharge.
[0079] To better meet the assembly standards for lighting fixtures at different heights, the following implementation method is adopted:
[0080] A first extension rod 6 is provided between the positive electrode guide rod 502 and the first electrode connecting guide rod 202. The first extension rod 6 is longitudinally arranged inside the lower section 102 of the outer shell. Both ends of the first extension rod 6 are fixedly connected to the positive electrode guide rod 502 and the first electrode connecting guide rod 202, respectively. A second extension rod 7 and a second electrode connecting guide rod 8 are provided between the negative electrode lead-out guide rod 304 and the negative electrode guide rod 503, respectively. The second extension rod 7 is longitudinally arranged inside the lower section 102 of the outer shell. The second electrode connecting guide rod 8 is transversely arranged inside the lower section 102 of the outer shell. One end of the second extension rod 7 is fixedly connected to the negative electrode guide rod 503. The other end of the second extension rod 7 is fixedly connected to one end of the second electrode connecting guide rod 8. The other end of the second electrode connecting guide rod 8 is fixedly connected to the negative electrode lead-out guide rod 304.
[0081] In this embodiment, by connecting the first extension rod 6 and the second extension rod 7 to the two ends of the positive electrode rod 502 and the negative electrode rod 503 respectively, the first extension rod 6 and the second extension rod 7 of appropriate length are selected according to the actual height and diameter of the outer shell 1, in order to achieve longitudinal centering and fixation of the gas discharge tube 501.
[0082] More importantly, the two ends of the gas discharge tube 501 are respectively welded and fixed by the second electrode connecting rod 8 to the negative electrode lead wire lead rod 304 and by the first extension rod 6 to the first electrode connecting rod 202. In actual operation, the radial position of the gas discharge tube 501 can be adjusted by adjusting the radial welding position of the negative electrode lead wire lead rod 304 to the second electrode connecting rod 8 and the radial welding of the first extension rod 6 to the first electrode connecting rod 202. This allows for fine adjustment of the radial position of the gas discharge tube 501, improving the assembly accuracy of the gas discharge tube 501. At the same time, it can adjust the parallelism of the discharge tube assembly 5 relative to the outer shell 1, ensuring that the quantum lamp can achieve the best lighting effect.
[0083] The connections between the U-shaped first electrode connecting rod 202 and the first electrode connecting rod 202, the U-shaped first electrode connecting rod 202 and the first extension rod 6, the first extension rod 6 and the positive electrode connecting rod 502, the negative electrode connecting rod 503 and the second extension rod 7, the second extension rod 7 and the second electrode connecting rod 8, the second electrode connecting rod 8 and the negative electrode wire lead-out rod 304, the negative electrode wire lead-out rod 304 and the negative electrode wire 303, the positive electrode wire 302 and the positive electrode wire lead-out rod 305, and the positive electrode wire lead-out rod 305 and the first electrode connecting rod 202 are all fixed by welding. This can effectively improve the reliability of the connection between related components and the stability of the conductivity between related components, and minimize problems such as arc interference and current breakdown.
[0084] The outer shell 1 is made of high borosilicate glass, but it can also be made of other materials with high transparency, high temperature resistance and explosion protection.
[0085] To further ensure the lamp's high-efficiency lighting performance, the limiting ring 201, the first electrode connecting rod 202, the supporting rod 203, the negative electrode lead-out rod 304, the positive electrode lead-out rod 305, the first extension rod 6, the second extension rod 7, and the second electrode connecting rod 8 are all made of metallic nickel. Metallic nickel has excellent conductivity, which can effectively reduce resistance, reduce power loss and heat generation, and improve the bulb's energy efficiency. If nano-nickel materials are used, their conductivity is even better, and their free electron density is higher, which can further optimize the current transmission efficiency.
[0086] Furthermore, metallic nickel has excellent corrosion resistance. Nickel is highly stable in humid or corrosive environments, and a protective layer can be formed through electroplating to prevent oxidation and chemical corrosion, thus extending the lifespan of the bulb.
[0087] At the same time, metallic nickel also has outstanding high-temperature stability because of its high melting point (about 1453°C). It can maintain stable performance even in the high-temperature environment when the bulb is working, avoiding poor contact due to material softening.
[0088] The main body of the lamp wick 301 is made of glass.
[0089] Regarding the specific structure of the lamp wick body 301, the lamp wick body 301 is provided with a positive electrode wire 302 and a negative electrode wire 303. The upper part of the positive electrode wire 302 and the negative electrode wire 303 is located inside the lamp wick body 301, and the lower part of the positive electrode wire 302 and the negative electrode wire 303 is located outside the bottom end of the lamp wick body 301. One end of the positive electrode wire 302 is welded and fixed to the positive electrode wire lead-out rod 305, and the other end of the positive electrode wire 302 is welded and fixed to the negative terminal 402 of the lamp holder assembly 4. One end of the negative electrode wire 303 is welded and fixed to the negative electrode wire lead-out rod 304, and the other end of the negative electrode wire 303 is welded and fixed to the positive terminal 401 of the lamp holder assembly 4, thereby completing a complete power circuit.
[0090] Regarding the dimensional proportions of the components of the quantum lamp, in this patent, the outer diameter of the outer shell 1 is 46mm±2mm, the length of the outer shell 1 is 140mm±2mm, the outer diameter of the limiting ring 201 is 40mm±1mm, the maximum length from the limiting ring 201 to the lamp core body 301 is 125mm±2mm, and the total length of the gas discharge tube 501 and the two connecting posts 504 in the discharge tube assembly 5 is 50mm±2mm.
[0091] The positive terminal 401 of the lamp holder assembly 4 is located at the upper section of the lamp holder assembly 4, the insulating end 403 is located at the middle section of the lamp holder assembly 4, and the negative terminal 402 is located at the lower section of the lamp holder assembly 4. The positive terminal 401, the insulating end 403, and the negative terminal 402 are fixedly connected in sequence.
[0092] The positive terminal 401 has a hollow structure, and the inside of the positive terminal 401 has a receiving chamber 40101. The outer surface of the positive terminal 401 has external threads.
[0093] The cavity 40101 is used to accommodate the positive and negative wires, and the external thread on the outer surface of the positive terminal 401 is used to assemble and conduct electricity with the lamp holder.
[0094] The insulating end 403 on the lamp holder assembly 4 is made of high-frequency ceramic material, which has significant technical advantages:
[0095] First, high-frequency ceramic materials have extremely low dielectric constants, which can effectively suppress high-frequency electromagnetic interference (EMI), avoid circuit coupling parasitic capacitance problems, simplify filter design and improve electromagnetic compatibility.
[0096] Secondly, high-frequency ceramic materials can maintain structural stability in high-temperature environments, have a low coefficient of thermal expansion, and can withstand rapid temperature changes without cracking. For example, silicon nitride ceramics can still be used for a long time at a high temperature of 1600℃, making them suitable for high-temperature scenarios such as tunnel lights.
[0097] Furthermore, ceramic materials are non-conductive, with a breakdown field strength as high as 10-30 kV / mm (such as alumina ceramics), and a tracking index (CTI) ≥600V, far exceeding the insulation capacity of metallic materials. Combined with extended creepage distance, the high insulation strength of ceramics can reduce the risk of arc discharge.
[0098] Furthermore, high-frequency ceramic materials exhibit strong corrosion resistance to chemical media such as acids, alkalis, and salts, and their dense, non-porous surface provides excellent dust and water resistance.
[0099] Meanwhile, ceramic materials have a high thermal conductivity, which can quickly dissipate the heat generated by the lamp head, avoiding performance degradation caused by heat accumulation. The microporous structure of ceramics can increase the heat dissipation area.
[0100] The insulating end 403 includes an upper insulating end section 40301, an intermediate insulating end section 40302, and a lower insulating end section 40303. The upper insulating end section 40301, the intermediate insulating end section 40302, and the lower insulating end section 40303 are arranged sequentially from top to bottom. The upper end of the upper insulating end section 40301 is fixedly connected to the lower end of the positive terminal 401.
[0101] The upper insulating section 40301, the middle insulating section 40302, and the lower insulating section 40303 together form an insulating end 403 with a T-shaped cylindrical structure.
[0102] The T-shaped structure reduces the spread of the discharge arc when assembled with the lamp holder. Together with the lamp holder, it isolates the arc impact and prevents arc backflow, thereby suppressing the generation of high-frequency arcs, avoiding electrode ablation or glass tube breakage, and further improving the service life of the lamp.
[0103] The negative terminal 402 on the lamp holder assembly 4 includes a negative terminal conductive cover 40201 and a negative terminal conductive post 40202. The negative terminal conductive cover 40201 is located at the lower section of the negative terminal 402, and the negative terminal conductive post 40202 is located at the radial center of the negative terminal conductive cover 40201. The negative terminal conductive cover 40201 is located outside the lower section of the insulating end 40303 and is fixedly connected to the lower section of the insulating end 40303. The negative terminal conductive post 40202 is located inside the insulating end 403. One end of the negative terminal conductive post 40202 is fixedly connected to the negative terminal conductive cover 40201, and the other end of the negative terminal conductive post 40202 communicates with the receiving chamber 40101 inside the positive terminal 401.
[0104] In actual assembly, the positive electrode wire 302 on the lamp core assembly 3 is welded and fixed to the positive terminal 401, and the negative electrode wire 303 is inserted into the receiving chamber 40101 inside the positive terminal 401 and welded and fixed to the negative terminal conductive post 40202, thus completing the welding and fixing of the positive and negative electrode wires of the lamp.
[0105] To increase the stability of the insulation end 403 itself, the following embodiment is adopted:
[0106] In this embodiment, the middle section 40302 of the insulating end is in the shape of an inverted trapezoid. The inverted trapezoidal middle section 40302 of the insulating end forms a reliable support at the middle position of the insulating end 403, which can increase the overall rigidity of the insulating end 403 and increase the impact resistance of the insulating end 403.
[0107] Regarding the size proportions of the lamp holder assembly 4, the outer diameter of the positive terminal 401 is 40mm ± 2mm, the height of the positive terminal 401 is 30mm ± 2mm, the outer diameter of the upper insulating section 40301 is 40mm ± 2mm, the height of the upper insulating section 40301 is 5mm ± 1mm, the maximum outer diameter of the inverted trapezoidal middle insulating section 40302 is 14mm ± 1mm, the minimum outer diameter of the inverted trapezoidal middle insulating section 40302 is 10mm ± 1mm, the outer diameter of the lower insulating section 40303 is 10mm ± 1mm, and the total height of the inverted trapezoidal middle insulating section 40302 and the lower insulating section 40303 is 9mm ± 1mm.
[0108] In particular, by increasing the total height of the inverted trapezoidal middle section 40302 and lower section 40303 of the insulation end to 9mm±1mm, the creepage distance during discharge can be increased. The main benefits of increasing the creepage distance include:
[0109] 1. Enhanced insulation strength and longer creepage distance can effectively block the conductive path formed by contaminants (such as dust and water stains), reducing the risk of tracking and surface discharge.
[0110] 2. Adaptable to complex environments: In scenarios with high pollution levels such as humidity and dust, extending the creepage distance can reduce the negative impact of environmental factors on insulation performance.
[0111] 3. To increase overall structural safety, firstly, according to relevant standards, discharge equipment must meet the withstand voltage requirements by increasing the creepage distance to prevent safety accidents caused by arc breakdown.
[0112] Secondly, by lengthening the negative end lamp post, the discharge path along the insulation surface is significantly lengthened, requiring a higher voltage to break down the insulation layer (according to the formula U=E⋅d, where d is the creepage distance), thereby suppressing the generation of high-frequency arcs and preventing electrode ablation or glass tube breakage.
[0113] Furthermore, the extended creepage path can reduce leakage current density (I=J⋅S, where S is the effective area), reduce the risk of partial discharge caused by moisture bridging or dirt conduction, and extend the life of the lamp.
[0114] Furthermore, a long creepage path can disperse the high-frequency charge distribution, reduce the electric field concentration effect, and prevent the insulating material from breaking down due to electrical stress.
[0115] Meanwhile, by lengthening the lamp post and adopting a spiral or multi-segment insulation structure, the effective creepage path is expanded without increasing the overall size, while reserving space for optical components and heat dissipation structures.
[0116] The processing method for the aforementioned quantum lamp includes the following steps:
[0117] Step (1): Select a high borosilicate glass tube with a suitable outer diameter and cut it to the set length.
[0118] Step (2): Use a sealing machine to seal one end of the cut borosilicate glass tube to form the upper part 101 of the outer shell.
[0119] Step (3): Select a matching specification lamp core body 301, and weld one end of the negative electrode lead-out rod 304 and the positive electrode lead-out rod 305 to one end of the negative electrode lead-out rod 303 and the positive electrode lead-out rod 302 inside the lamp core body 301, respectively. At the same time, fix the ends of the negative electrode lead-out rod 304 and the positive electrode lead-out rod 305 that are welded to the wires inside the glass core column through a sintering process. After fixing, the negative electrode lead-out rod 304 is longitudinally set on one side of the upper end of the lamp core body 301, and the positive electrode lead-out rod 305 is transversely set on the other side of the upper end of the lamp core body 301.
[0120] Step (4): Weld the other end of the negative electrode lead wire out of the guide rod 304 to one end of the second electrode connecting guide rod 8 for fixation.
[0121] Step (5): Select high-purity alumina powder and form the structure of the discharge tube assembly 5 consisting of a gas discharge tube 501 and two connecting columns 504 by one-time molding and high-temperature sintering.
[0122] Then, the inside of the gas discharge tube 501 is evacuated using a glove box. Next, according to the actual color temperature requirements, halogen pills of the corresponding specifications are added. Then, hydrogen and xenon are filled into the gas discharge tube 501 to obtain a mixed gas. The filling ratio of hydrogen and xenon is 1:1.
[0123] Finally, a plasma sealing machine is used to seal the positive electrode rod 502 and the negative electrode rod 503 inside the two connecting posts 504 respectively, and the gas pressure inside the gas discharge tube 501 is set to a standard of less than 5 atmospheres.
[0124] Step (6): Bend the upper part of the limiting bracket assembly 2 into a circle to form a limiting bracket assembly 2 with a circular limiting ring 201. The limiting bracket assembly 2 is set vertically.
[0125] The first electrode connecting rod 202 is bent into a U-shape. The U-shaped first electrode connecting rod 202 is set horizontally. One end of the U-shaped first electrode connecting rod 202 is welded and fixed to the upper part of the support rod 203.
[0126] Step (7): Weld a connecting seat with degassing agent 205 to the lower end of the support guide rod 203 at the welding position of the first electrode connecting guide rod 202 and the support guide rod 203. Then, insert the insulating sleeve 204 into the support guide rod 203 at the lower end of the degassing agent 205.
[0127] Then, the other end of the positive lead wire lead rod 305 is welded and fixed to the support rod 203 at the position adjacent to the lower end of the insulating sleeve 204. After fixing, the welded position is in sequence attached to the insulating sleeve 204 and the degassing agent 205.
[0128] Step (8): Weld the first extension rod 6 and the second extension rod 7 to the outer positions of the positive electrode rod 502 and the negative electrode rod 503 respectively. Then, weld and fix the other end of the first extension rod 6 to the other end of the first electrode connecting rod 202, and weld and fix the other end of the second extension rod 7 to the other end of the second electrode connecting rod 8.
[0129] Step (9): Select a matching lamp holder assembly 4, and weld the other ends of the positive electrode wire 302 and the negative electrode wire 303 to the inner surface of the positive terminal 401 and the negative terminal conductive post 40202 on the negative terminal 402 of the lamp holder assembly 4, respectively. Then, fix the lamp core body 301 to the upper end of the lamp holder assembly 4.
[0130] After being fixed, the limiting bracket assembly 2, the lamp wick assembly 3, the lamp head assembly 4, and the discharge tube assembly 5 together constitute a complete gas discharge circuit light source system. Furthermore, the discharge tube assembly 5 and the lamp wick assembly 3 are both located at the center of the lamp head assembly 4.
[0131] Step (10): Test the brightness effect of the light source by powering on. After the test is passed, put the outer shell 1 into the outside of the overall structure including the lamp core assembly 3, the limiting bracket assembly 2, and the discharge tube assembly 5. Finally, seal and fix the outer shell 1 and the lamp head assembly 4.
[0132] After sealing and fixing, the discharge tube assembly 5 is located at the longitudinal and radial middle positions of the outer shell 1, the support guide rod 203 is located on one side close to the inside of the lower section 102 of the outer shell, the insulating sleeve 204 is radially symmetrically arranged with the gas discharge tube 501, and the limiting ring 201 is laterally arranged inside the upper section 101 of the outer shell and fits against the inner circumference of the upper section 101 of the outer shell.
[0133] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A high frequency ceramic base, characterized by: The lamp cap assembly is composed of a positive electrode end, a negative electrode end and an insulating end, and the positive electrode end and the negative electrode end are insulated by the insulating end; The positive electrode end is located at the upper section of the lamp cap assembly, the insulating end is located at the middle section of the lamp cap assembly, and the negative electrode end is located at the lower section of the lamp cap assembly, and the positive electrode end, the insulating end and the negative electrode end are sequentially fixedly connected; The positive electrode end is a hollow structure, and the inside of the positive electrode end is provided with a containing cavity; The insulating end comprises an upper section, a middle section and a lower section, which are sequentially arranged from top to bottom, and the upper end of the upper section is fixedly connected with the lower end of the positive electrode end; The insulating end is a cylindrical structure with a T-shaped cross section; The negative electrode end comprises a negative electrode end conductive cover and a negative electrode end conductive column, the negative electrode end conductive cover is located at the lower section of the negative electrode end, the negative electrode end conductive column is located at the radial middle position of the negative electrode end conductive cover, the negative electrode end conductive cover is located at the outer position of the lower section of the insulating end and is fixedly connected with the lower section of the insulating end, and the negative electrode end conductive column is located in the inside of the insulating end, one end of the negative electrode end conductive column is fixedly connected with the negative electrode end conductive cover, and the other end of the negative electrode end conductive column is in communication with the containing cavity in the inside of the positive electrode end.
2. The high frequency ceramic base of claim 1, wherein: The shape of the middle section of the insulating end is an inverted trapezoid.
3. The high frequency ceramic base of claim 1, wherein: The upper end of the lamp cap assembly is provided with a limiting support assembly, a wick assembly and a discharge tube assembly, and the lower end of the wick assembly is fixedly connected with the upper end of the lamp cap assembly; The wick assembly comprises a wick main body, and the upper end of the wick main body is respectively provided with a negative electrode wire leading-out guide rod and a positive electrode wire leading-out guide rod, and one end of each of the negative electrode wire leading-out guide rod and the positive electrode wire leading-out guide rod is fixedly arranged in the inside of the wick main body; The discharge tube assembly comprises a gas discharge tube, and the two sides of the gas discharge tube are respectively provided with a positive electrode guide rod and a negative electrode guide rod, and one end of each of the positive electrode guide rod and the negative electrode guide rod is in communication with the two ends in the inside of the gas discharge tube; One end of the negative electrode wire leading-out guide rod in the inside of the wick main body is connected with the negative electrode end conductive column on the lamp cap assembly, the other end of the negative electrode wire leading-out guide rod is connected with the other end of the negative electrode guide rod, one end of the positive electrode wire leading-out guide rod in the inside of the wick main body is connected with the positive electrode end on the lamp cap assembly, and the other end of the positive electrode wire leading-out guide rod is connected with the other end of the limiting support assembly; The positive electrode guide rod, the limiting support assembly, the positive electrode wire leading-out guide rod, the positive electrode end and the negative electrode end, the negative electrode wire leading-out guide rod and the negative electrode guide rod form a current loop; The negative electrode wire leading-out guide rod, the positive electrode wire leading-out guide rod and the limiting support assembly jointly form a fixed support for the discharge tube assembly.
4. The high frequency ceramic base of claim 3, wherein: The inside of the gas discharge tube is a vacuum sealed structure, and the inside of the gas discharge tube is provided with a mixed gas of hydrogen and xenon.
5. The high frequency ceramic base of claim 3, wherein: The limiting support assembly comprises a limiting ring and a support guide rod, the limiting ring is located at the upper segment of the limiting support assembly, the support guide rod is located at the lower segment of the limiting support assembly, the limiting ring is circular and horizontally arranged, and the support guide rod is vertically arranged; The discharge tube assembly further comprises two connecting columns, the two connecting columns are respectively fixedly connected with the upper and lower sides of the gas discharge tube, and the discharge tube assembly is vertically arranged; The positive electrode guide rod and the negative electrode guide rod are respectively located inside the two connecting columns, the upper end of the support guide rod is fixedly connected with the positive electrode guide rod, and the lower end of the support guide rod is fixedly connected with the positive electrode wire leading guide rod.
6. The high frequency ceramic base of claim 3, wherein: An insulating sleeve is arranged at the middle position of the support guide rod, a gas absorber is arranged at the upper end of the insulating sleeve, and the gas absorber, the insulating sleeve and the support guide rod are sequentially arranged.
7. The high frequency ceramic base of claim 3, wherein: A first electrode connecting guide rod is arranged between the upper end of the support guide rod and the end of the positive electrode guide rod away from the gas discharge tube, the first electrode connecting guide rod is in the shape of U, one end of the U-shaped first electrode connecting guide rod is fixedly connected with the end of the positive electrode guide rod away from the gas discharge tube, and the other end of the U-shaped first electrode connecting guide rod is fixedly connected with the upper end of the support guide rod.
8. The high frequency ceramic base of claim 7, wherein: A first extension guide rod is arranged between the positive electrode guide rod and the first electrode connecting guide rod, the first extension guide rod is vertically arranged inside the lower segment of the outer shell, and the two ends of the first extension guide rod are fixedly connected with the positive electrode guide rod and the first electrode connecting guide rod respectively. A second extension guide rod and a second electrode connecting guide rod are respectively arranged between the negative electrode wire leading guide rod and the negative electrode guide rod, the second extension guide rod is vertically arranged, and the second electrode connecting guide rod is horizontally arranged. One end of the second extension guide rod is fixedly connected with the negative electrode guide rod, the other end of the second extension guide rod is fixedly connected with one end of the second electrode connecting guide rod, and the other end of the second electrode connecting guide rod is fixedly connected with the negative electrode wire leading guide rod. The negative electrode wire leading guide rod is vertically arranged at the upper end of the lampwick main body, and the positive electrode wire leading guide rod is horizontally arranged at the upper end of the lampwick main body.
9. The high frequency ceramic lamp holder of claim 8, wherein: The connection modes between the U-shaped first electrode connecting guide rod and the first electrode connecting guide rod, the U-shaped first electrode connecting guide rod and the first extension guide rod, the first extension guide rod and the positive electrode guide rod, the negative electrode guide rod and the second extension guide rod, the second extension guide rod and the second electrode connecting guide rod, the second electrode connecting guide rod and the negative electrode wire leading guide rod, the negative electrode wire leading guide rod and the negative electrode wire, the positive electrode wire and the positive electrode wire leading guide rod, and the positive electrode wire leading guide rod and the first electrode connecting guide rod are all welding fixation.
10. A high frequency ceramic lamp holder according to any one of claims 1-9, characterized in that: The outer diameter of the positive electrode end is 40 mm ± 2 mm, the height of the positive electrode end is 30 mm ± 2 mm, the outer diameter of the upper section of the insulating end is 40 mm ± 2 mm, the height of the upper section of the insulating end is 5 mm ± 1 mm, the maximum outer diameter of the middle section of the insulating end in the inverted trapezoidal shape is 14 mm ± 1 mm, the minimum outer diameter of the middle section of the insulating end in the inverted trapezoidal shape is 10 mm ± 1 mm, the outer diameter of the lower section of the insulating end is 10 mm ± 1 mm, and the total height of the middle section of the insulating end in the inverted trapezoidal shape and the lower section of the insulating end is 9 mm ± 1 mm.