Light source anion purifier

Abstract

The utility model discloses a light source negative ion purifier which comprises a lamp holder and a lamp cup connected with the lamp holder, the lamp cup is connected to a lampshade through a heat dissipation structure, a containing space is formed among the lamp cup, the heat dissipation structure and the lampshade, an LED light source plate is arranged on the lampshade through a clamping structure, a high-low voltage shielding structure is arranged in the lampshade, and the high-low voltage shielding structure is arranged in the lampshade. A negative-ion generator and an LED light source driving module which are communicated with a power supply are arranged in the high-low voltage shielding structure, the LED light source driving module is used for driving the LED light source plate to work, the high-low voltage shielding structure is shielded by filling a shielding material, the negative-ion generator is connected with a negative-ion output head through a wire, and the negative-ion output head is connected with the LED light source plate. And the negative ion output head extends out of the lampshade. According to the utility model, the high-low voltage separation technology is adopted, and the shielding structure design is adopted, so that the interference and influence of high negative pressure on the LED lamp panel and driving are avoided, the negative pressure is improved to more than 17000V, and the effects of air purification, sterilization, dust removal and formaldehyde removal are obvious.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, in particular to a light source negative ion purifier. Background Art

[0002] Considering the current problems in combining negative ion generators with LEDs, negative ion LED lighting fixtures use low-negative-voltage products with negative ion high-voltage output within -3800V. Negative-voltage output exceeding 3800V will have a great impact on LED lamps and drivers, or even directly burn them out. In addition, low-negative-voltage products have no intuitive impact on the environment or people, and their effect is minimal.

[0003] Currently, the negative ion generator and LED driver are separated. When operating at a negative voltage of 3800V, the electric field generated has minimal impact on the driver, allowing the driver to operate without malfunction for extended periods. However, when the negative ion voltage is increased to 5800V, the driver malfunctions after a short period of operation, indicating a significant impact of the electric field. After improving the circuit board insulation and shielding the electric field, the LED driver was then shielded from the electric field. When a metal casing proved ineffective, PC material was used for shielding, but this was ineffective. Glue filling was then applied, which provided favorable results. In summary, the negative pressure field from the negative ion generator significantly impacts the driver, feeding back into the driver circuitry and damaging it. Utility Model Content

[0004] In response to the above problems, the purpose of this utility model is to provide a light source negative ion purifier. This product adopts high and low voltage separation technology, and through shielding structure design, it avoids the interference and influence of high negative pressure on LED light board and drive, and increases the negative pressure to above 17000V, so that end users can clearly and intuitively feel the benefits brought by negative ion lamps, especially the significant effects on air purification, sterilization, dust removal and formaldehyde removal.

[0005] The technical solution for achieving the purpose of the utility model is: a light source negative ion purifier, comprising a lamp head and a lamp cup connected thereto, the lamp cup being connected to the lampshade through a heat dissipation structure, a accommodating space being formed between the lamp cup, the heat dissipation structure and the lampshade, an LED light source board being provided on the lampshade through a snap-on structure, a high and low voltage shielding structure being provided inside the lampshade, a negative ion generator and an LED light source driving module connected to a power supply being provided inside the high and low voltage shielding structure, the LED light source driving module being used to drive the LED light source board to work, the high and low voltage shielding structure being shielded by filling shielding material, the negative ion generator being connected to a negative ion output head through a wire, and the negative ion output head extending out of the lampshade.

[0006] Preferably, the high and low voltage shielding structure includes a first shielding cavity and a second shielding cavity, wherein the first shielding cavity and the second shielding cavity are respectively used to place the negative ion generator and the LED light source driving module, and further includes a shielding mechanism for shielding the first shielding cavity and the second shielding cavity;

[0007] The shielding mechanism is longitudinally provided with a wire trough cavity, which includes a light source board power line cavity for accommodating the light source board power line and a negative high-voltage line cavity for accommodating the negative high-voltage line. The light source board power line cavity and the negative high-voltage line cavity are shielded by a shielding plate.

[0008] The first and second shielding cavities, the cavity for the light source board power line, and the cavity for the negative high-voltage line are all filled with epoxy resin / silicone. The first and second shielding cavities, along with the shielding mechanism, are integrated to provide strong shielding capabilities. The first and second shielding cavities form the primary shielding layer, while the wire trough cavity forms the secondary shielding layer. This multi-layer shielding process enables a higher level of shielding for both high and low voltage signals.

[0009] Preferably, the first shielding cavity, the second shielding cavity, the cavity for the power line of the light source board, and the cavity for the negative high-voltage line are all evacuated after filling. The first shielding cavity, the second shielding cavity, the cavity for the power line of the light source board, and the cavity for the negative high-voltage line are first filled with epoxy resin / silicone for signal shielding, and then evacuated after filling to facilitate better shielding of the epoxy resin. After evacuation, the cavity is then dried.

[0010] Preferably, the shielding mechanism further comprises a shielding baffle, wherein the shielding baffle is provided with a power line placement slot. Since the top of the high and low voltage shielding structure is covered, the power line placement slot is provided on the shielding baffle to save height space and facilitate covering with the cover.

[0011] Preferably, the light source board power line cavity is provided with a power board power line slot for passing the power board power line, and the negative high-voltage line cavity is provided with a negative high-voltage line slot for passing the negative high-voltage line. The opening of the power board power line slot is lower than the opening of the negative high-voltage line slot. This arrangement creates a height difference, which is beneficial for signal shielding and isolation.

[0012] Preferably, the negative ion output head is a tungsten steel needle.

[0013] Preferably, the heat dissipation structure includes a heat dissipation base plate and several heat dissipation fins arranged around the heat dissipation base plate, the LED light source board is arranged at the lower part of the heat dissipation base plate, the high and low voltage shielding structure is arranged at the upper part of the heat dissipation base plate, the two ends of the heat dissipation fins are respectively connected to the lamp cup and the lampshade, and the several heat dissipation fins are fixed by reinforcing ribs.

[0014] Preferably, the snap-fit structure includes a snap-fit block provided on the LED light source board and a snap-fit groove provided on the lampshade, wherein the snap-fit block and the snap-fit groove cooperate to achieve snap-fit fixation. Snap-fit fixation is only one of the fixing methods, and other methods are also possible as long as they can achieve fixation. This application does not elaborate on them in detail.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects: (1) The utility model has an ingenious structure. The negative ion generator and the LED light source driver module are arranged in parallel in a mold and isolated from each other. The negative ion high-voltage output line and the LED driver output line are insulated by the pipeline and do not interfere with each other. The present application optimizes and improves the electric field isolation generated by the negative ions, adopts the epoxy resin glue treatment for sealing the negative ions and the driver at the same time, and uses PBT insulation material to form a double-layer insulation isolation protection. The negative ion high-voltage output line and the LED driver output line use high and low outlets to minimize the interference of negative pressure on the lamp line. The negative ion high-voltage line and the LED output line are returned from the back of the negative ion and use a high and low inlet method, directly inserted into the front, and the high-voltage line and the LED power line use their own channels, effectively avoiding the interference of the high-voltage electric field and magnetic field on the LED lamp line. After the PBT shell is encapsulated with epoxy resin, it successfully passed the negative high-voltage 20,000V pulse test for 100,000 times and passed the high-temperature test.

[0016] (2) The LED light source board of the present invention adopts rare earth ceramic materials, which have excellent thermal conductivity and insulation properties, greatly protecting the lamp beads and extending their lifespan; silicon nitride and magnesium oxide are added on the basis of aluminum oxide to improve the high-temperature stability of the circuit board and its excellent resistance to electric field interference; the ceramic structure is optimized to achieve rapid heat dissipation, and the circuit board circuit is made using an additive process. The circuit layer uses a silver paste process, and palladium and platinum are specially added to increase the conductive performance. The traditional ink process is abandoned, and the glass glaze process is used to achieve the ultimate insulation and anti-interference of the circuit board.

[0017] (3) The negative ion output head is made of tungsten steel, abandoning the traditional carbon brush head, and its service life is greatly enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention easier to understand, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is an explosion diagram of the utility model;

[0021] Figure 3 It is a cross-sectional view of the utility model;

[0022] Figure 4 It is a cutaway perspective view of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the high and low voltage shielding structure of the utility model;

[0024] Figure 6 for Figure 5 Top view of . DETAILED DESCRIPTION

[0025] Example 1

[0026] See Figures 1 to 6 The light source negative ion purifier of this embodiment includes a lamp head 1 and a lamp cup 2 connected thereto, the lamp cup is connected to a lampshade 10 through a heat dissipation structure 4, and a accommodating space is formed between the lamp cup, the heat dissipation structure and the lampshade, and an LED light source board 5 is provided on the lampshade through a snap-on structure, and a high and low voltage shielding structure 9 is provided inside the lampshade, and a negative ion generator 7 and an LED light source driving module 8 connected to a power supply 3 are provided in the high and low voltage shielding structure, and the LED light source driving module is used to drive the LED light source board 5 to work, and the high and low voltage shielding structure is shielded by filling shielding material, and the negative ion generator is connected to a negative ion output head 6 through a wire, and the negative ion output head extends out of the lampshade.

[0027] The high and low voltage shielding structure includes a first shielding cavity 9-1 and a second shielding cavity 9-2, wherein the first shielding cavity and the second shielding cavity are respectively used to place the negative ion generator and the LED light source driving module, and further includes a shielding mechanism for shielding the first shielding cavity and the second shielding cavity;

[0028] The shielding mechanism is provided with a wire trough cavity in the longitudinal direction, and the wire trough cavity includes a light source board power line cavity 9-3 for accommodating the light source board power line, and a negative high-voltage line cavity 9-4 for accommodating the negative high-voltage line. The light source board power line cavity and the negative high-voltage line cavity are shielded by a shielding plate 9-5.

[0029] The first and second shielding cavities, the cavity for the light source board power line, and the cavity for the negative high-voltage line are all filled with epoxy resin / silicone. The first and second shielding cavities, along with the shielding mechanism, are integrated to provide strong shielding capabilities. The first and second shielding cavities form the primary shielding layer, while the wire trough cavity forms the secondary shielding layer. This multi-layer shielding process enables a higher level of shielding for both high and low voltage signals.

[0030] After filling, the first and second shielding cavities, the light source board power line cavity, and the negative high-voltage line cavity are all vacuumed. The first and second shielding cavities, the light source board power line cavity, and the negative high-voltage line cavity are first filled with epoxy resin / silicone for signal shielding, and then vacuumed to facilitate better shielding of the epoxy resin. After vacuuming, they are then dried.

[0031] The shielding mechanism is further provided with a shielding baffle 9-6, on which a power line placement slot 9-7 is provided. Since the top of the high and low voltage shielding structure is covered, the power line placement slot is provided on the shielding baffle to save height space and facilitate covering with the cover.

[0032] The light source board power line cavity is provided with a power board power line slot 9-8 for passing the power board power line, and the negative high-voltage line cavity is provided with a negative high-voltage line slot 9-9 for passing the negative high-voltage line. The opening of the power board power line slot is lower than the opening of the negative high-voltage line slot. This arrangement creates a height difference, which facilitates signal shielding and isolation.

[0033] The negative ion output head is a tungsten steel needle.

[0034] The heat dissipation structure includes a heat dissipation base plate 4-1 and several heat dissipation fins 4-2 arranged around the heat dissipation base plate. The LED light source board is arranged at the lower part of the heat dissipation base plate, and the high and low voltage shielding structure is arranged at the upper part of the heat dissipation base plate. The two ends of the heat dissipation fins are respectively connected to the lamp cup and the lampshade, and the several heat dissipation fins are fixed by reinforcing ribs.

[0035] The clamping structure includes a clamping block provided on the LED light source board and a clamping slot provided on the lampshade, wherein the clamping block and the clamping slot cooperate to complete the clamping fixation. The clamping fixation is only one of the fixing methods, and other methods can also be used as long as the fixing is achieved. This application does not elaborate on them.

[0036] The LED light source board is made of rare earth ceramic material, including a ceramic substrate and a substrate circuit, and specifically includes the following steps:

[0037] A. Raw material preparation: Select suitable ceramic raw materials, such as alumina, silicon nitride, and magnesium oxide, and prepare the powders;

[0038] B. Powder processing: drying, sieving and mixing the raw powder to obtain a uniform powder mixture;

[0039] C. Compression molding: The powder mixture is molded by a compression machine;

[0040] D. Sintering: The formed ceramic substrate needs to be sintered, and the formed body is heated at high temperature to make the particles bond with each other;

[0041] E Machining: The sintered ceramic substrate also needs to be machined, including precision cutting, grinding, lapping and other processes to obtain the required precision and surface smoothness, thereby producing a ceramic substrate.

[0042] F is printed with solderable conductive silver paste on ceramic substrate;

[0043] G drying, temperature 150 degrees Celsius, time 30 minutes;

[0044] H sintering;

[0045] I printed solder mask, the solder mask material is glass glaze;

[0046] J is sintered again and fully inspected.

[0047] The assembly process of the high and low voltage shielding structure is as follows:

[0048] a. The high and low voltage shielding structure is formed in one piece.

[0049] b. Install the high and low voltage shielding structure into the light source negative ion purifier,

[0050] c. A negative ion generator and an LED light source driving module are installed in the high and low voltage shielding structure. The input ends of the negative ion generator and the LED light source driving module are connected in series to the power supply. The negative high-voltage line at the output end of the negative ion generator is connected to the tungsten steel needle through the negative high-voltage line groove and the negative high-voltage line cavity. The light source board power line at the output end of the LED light source driving module is connected to the LED light source board through the power line groove of the power board and the power line cavity of the light source board. The opening of the power line groove of the power board is lower than the opening of the negative high-voltage line groove.

[0051] d. Perform circuit test; if the test passes, proceed to the next step; if the test fails, return to step c.

[0052] e. Fill the cavities of the high and low voltage shielding structures with epoxy resin / silicone.

[0053] f Vacuum;

[0054] g baking;

[0055] h inspection and final scrapping / assembly.

[0056] In specific implementation, this application demonstrates through multiple sets of experiments:

[0057] November 27, 2022, Location: Derun Garden, Yuelu District

[0058] First experiment

[0059] Integrating the concept of negative ion streetlights, this is the first time negative ions have been incorporated into LED lights. Using conventional aluminum-based circuit boards, the negative ion output voltage is negative 3800V. The LED board is driven by a simple RC step-down circuit with a rectifier, filter, and current-limiting resistor. After three months of continuous use, the LED light decayed significantly, and the negative ion output was insignificant, making it completely worthless for civilian or commercial use.

[0060] February 3, 2023, Location: Derun Garden, Yuelu District

[0061] Second experiment

[0062] Using a conventional aluminum substrate as the light board, the negative ion output uses a negative 5800V, and the LED driver still uses a resistor-capacitor voltage reduction. After three days of continuous use, the lamp beads and driver are damaged, but the negative ion output is normal, and the negative ion output distance is increased.

[0063] February 16, 2023 Location: Derun Garden, Yuelu District

[0064] The third experiment

[0065] Using a conventional aluminum substrate as the light board, the negative ion uses a negative 5800V output, the LED light driver is changed to a non-isolated driver, and the driver is damaged after being lit continuously for a week.

[0066] March 8, 2023 Location: Derun Garden, Yuelu District

[0067] The fourth experiment

[0068] Using LED isolation driver, the negative ion output is still negative 5800V. After two weeks of continuous lighting, the driver is damaged.

[0069] April 18, 2023 Location: Derun Garden, Yuelu District

[0070] Use fiberglass board as the light board, negative ion negative ion uses negative 5800V output, the LED lamp driver is changed to non-isolated driver, and it is continuously lit for one month. The LED light decays seriously, and the heat dissipation of the circuit board is a big problem, so it is not applicable.

[0071] June 17, 2023 Location: Derun Garden, Yuelu District

[0072] Using ceramic panels as light panels, negative ions and drivers remain the same, but the driver burns out after two months of continuous lighting. August 26, 2023 Location: Derun Garden, Yuelu District

[0073] The negative ion output line and LED driver were electrically insulated and separated. After 2 months of use, all indicators were normal, but the negative ion output concentration was too low to reach normal use value.

[0074] October 28, 2023 Location: Derun Garden, Yuelu District

[0075] The negative ion output was adjusted to negative 10,000V. After half an hour of driving, the LED lamp beads and the driver were damaged one after another, but the output negative ion concentration increased greatly.

[0076] October 30, 2023 Location: Derun Garden, Yuelu District

[0077] Continuously adjust the insulation of the negative ion negative high-voltage line and the electric field protection performance of the LED driver.

[0078] November 7, 2023 Location: Derun Garden, Yuelu District

[0079] We coordinated with circuit board manufacturers on the structural parameters of ceramic circuit boards, added silicon nitride and magnesium oxide on the basis of 96 alumina to improve the high-temperature stability and excellent resistance to electric field interference of the circuit board, optimized the ceramic structure for rapid heat dissipation, and used additive technology to produce circuit board circuits. The circuit layer uses silver paste technology, and palladium and platinum are specially added to increase the conductivity. The traditional ink process is abandoned and the glass glaze process is used to achieve the ultimate insulation and anti-interference of the circuit board.

[0080] December 5, 2023 Location: Derun Garden, Yuelu District

[0081] Adjust the insulation performance of the negative ion generator and the electrical insulation performance of the LED driver, use epoxy resin or silicone glue to greatly increase the normal working time of the bulb.

[0082] January 18, 2024 Location: Derun Garden, Yuelu District

[0083] Increase the insulation protection function of each line and successfully pass 100,000 pulse tests.

[0084] February 24, 2024 Location: Derun Garden, Yuelu District

[0085] We began to conceive a mold that combines a negative ion generator with an LED driver, and at the same time increased the negative voltage output of the negative ion generator to negative 17KV.

[0086] March 21, 2024 Location: Derun Garden, Yuelu District

[0087] The negative ion generator and LED driver mold have been conceived, and the 3D printing model has been completed. Testing has begun. April 18, 2024 Location: Derun Garden, Yuelu District

[0088] The mold material was finally chosen to be PBT material with a temperature resistance of 120-140 degrees Celsius and a voltage resistance of more than 2000V. The wire used also has a voltage resistance of more than 2000V.

[0089] May 25, 2024 Location: Derun Garden, Yuelu District

[0090] The LED bulb with a negative ion output of -17KV has successfully passed 100,000 pulse aging tests and high temperature test experiments.

[0091] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A light source negative ion purifier, characterized by: The invention comprises a lamp holder (1) and a lamp cup (2) connected thereto, wherein the lamp cup is connected to a lampshade (10) via a heat dissipation structure (4), and a storage space is formed between the lamp cup, the heat dissipation structure, and the lampshade. An LED light source board (5) is provided on the lampshade via a snap-fit structure, and a high-low voltage shielding structure (9) is provided inside the lampshade. A negative ion generator (7) and an LED light source driving module (8) connected to a power source (3) are provided inside the high-low voltage shielding structure, and the LED light source driving module is used to drive the LED light source board (5) to work. The high-low voltage shielding structure is shielded by filling a shielding material. The negative ion generator is connected to a negative ion output head (6) via a wire, and the negative ion output head extends outside the lampshade.

2. The light source negative ion purifier according to claim 1, characterized in that: The high and low voltage shielding structure comprises a first shielding cavity (9-1) and a second shielding cavity (9-2), wherein the first shielding cavity and the second shielding cavity are respectively used to place a negative ion generator and an LED light source driving module, and further comprises a shielding mechanism for shielding the first shielding cavity and the second shielding cavity; The shielding mechanism is provided with a wire trough cavity in the longitudinal direction, the wire trough cavity including a light source board power line cavity (9-3) for accommodating the light source board power line, and a negative high-voltage line cavity (9-4) for accommodating the negative high-voltage line. The light source board power line cavity and the negative high-voltage line cavity are shielded by a shielding plate (9-5). The first shielding cavity, the second shielding cavity, the light source board power line cavity, and the negative high-voltage line cavity are all filled with epoxy resin / silicone.

3. The light source negative ion purifier according to claim 2, characterized in that: The first shielding cavity, the second shielding cavity, the light source board power line cavity, and the negative high-voltage line cavity are all vacuumed after being filled.

4. The light source negative ion purifier according to claim 2, characterized in that: The shielding mechanism is further provided with a shielding baffle (9-6), and the shielding baffle is provided with a power line placement slot (9-7).

5. The light source negative ion purifier according to claim 2, characterized in that: The light source board power line cavity is provided with a power board power line slot (9-8) for the power board power line to pass through, and the negative high-voltage line cavity is provided with a negative high-voltage line slot (9-9) for the negative high-voltage line to pass through, and the opening of the power board power line slot is lower than the opening of the negative high-voltage line slot.

6. The light source negative ion purifier according to claim 1, characterized in that: The negative ion output head is a tungsten steel needle.

7. The light source negative ion purifier according to claim 1, characterized in that: The heat dissipation structure includes a heat dissipation base plate (4-1) and a plurality of heat dissipation fins (4-2) arranged around the heat dissipation base plate, the LED light source board is arranged at the lower part of the heat dissipation base plate, the high and low voltage shielding structure is arranged at the upper part of the heat dissipation base plate, the two ends of the heat dissipation fins are respectively connected to the lamp cup and the lampshade, and the plurality of heat dissipation fins are fixed by reinforcing ribs.

8. The light source negative ion purifier according to claim 1, characterized in that: The clamping structure includes a clamping block provided on the LED light source board and a clamping slot provided on the lampshade, and the clamping block cooperates with the clamping slot to complete the clamping and fixing.

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