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Shenzhen 9mm exposed light
From：2019.04.25
Shenzhen 9mm exposed light shenzhen blue scene exposed light shenzhen blue scene perforated light 9mm white light exposed light price
The material in the LED guiding sign design not only restricts the form, function and structure of the sign, but also reflects in the material design and application. Therefore, reasonable and scientific material selection and design application is an extremely important link in the design of guiding signs. When designing the guide signs, we should also consider the use of the signs in different environments day and night. In particular, the guide signs in some outdoor environments rely on natural light during the day and LED lighting to make the signs shine at night. At present, there are three lighting methods for guiding signs. The external light illuminates the sign; the LED light source is placed in the guiding sign panel for internal transmission; and the exposed light source is placed on the surface of the guiding sign for spontaneous light. In recent years, LED light-emitting diodes (leds) have been widely used in marking light sources due to their advantages of power saving, safety and durability. However the chaos of all sorts of illuminant that follow also appeared: the light pollution that seeks brightness to cause only, blind design cannot achieve energy-saving effect, the signboard that safety lacks to cause is on fire, standard color cannot convey accurately, dead light attenuation causes visual effect difference to wait a moment. Therefore, the standardization of the light source of guiding signs has drawn more and more attention from practitioners, and the development trend of product standardization is more and more obvious.
The standardization of labeling light source products is an important measure to ensure product quality. The establishment of standard is not only beneficial to the development of the industry, but also a new opportunity for many practitioners. LED perforated character is a kind of self-illumination of guiding sign light source. Because of its simple production process, good effect, low cost and other advantages, LED perforated character gradually replaces the traditional inner luminous character. It is especially suitable for outdoor roof, exterior wall, facade and other places where there is night guiding demand in airports, stations, docks, hotels and shopping malls. LED perforated light is an important part of the identification light source. However, the guidance sign and street advertising become rampant and disorderly, causing visual pollution and reducing environmental quality. Therefore, there is an urgent need to standardize the standardization of the guidance sign light source perforated light.
I. naming and classification of perforated lamps
1, the name of the lamp: there is said to be exposed light, external leakage light, punching light, star light, punching light, etc., currently with perforated light as the mainstream, according to its in galvanized sheet, acrylic sheet, aluminum plate or aluminum plastic plate plate punching or cutting hole made of words or pattern, lamps and lanterns from the back through the front panel luminescence and named. The finished product is called a perforated word.
2, the lamp classification: (1) size points: from the appearance of diameter points have 6mm, 9mm, 12mm, 15mm, 20mm. (2) to the voltage points: from the use of voltage points are 5v, 12v, 24v, 36v, 48v, 220v. (3) in categories: monochrome (red, white, yellow, green and blue, etc.), full color (point control), colorful (group control), internal control. (4) to process points: 48v, 24v, 12v has a group of 48 lights, a group of 36 lights, a group of 18 lights, a group of 3 lights. At present, most commonly used for a single group, the voltage of 5v and 12v.
Ii. Application scope of perforated light
According to the lamp diameter and application requirements in electronic light boxes, decorative patterns, dynamic words, boutique words, store signs, roof characters, dynamic screen, landscape lighting and other carriers.
Iii. Technical specifications for perforated light products:
1. Visual comfort: color standard, large luminous Angle and clear identification are the basic visual requirements of identification light source. (1) is looking at the color accurate: positive visual color standards, consistent effect; The colour to lamplight does not have unified standard on the market at present, cause all sorts of light color multifarious, common client asks brightness only, but a few high end client are like the bank, enterprise to wait for a requirement to match colors according to printing standard, at present more general with the bank requirement color is a standard. For example, the commonly used white light on the roof of the bank takes the black night sky as the background, and the normal downstairs is the visual area. The current is 10ma, the brightness is 2000-3000mcd, the color temperature is 15000k, the wavelength is 474-480nm, and the luminous flux is 11.0-14.0lm. Other colors also provide parameters according to these requirements. (2) side view Angle: side brightness, color brightness and positive consistent; Due to the expansion of the city building is build higher and higher, and the wide streets is still the same, a lot of light need not only positive view and the range of the side is also a major visual area, some advertising logo the brightness of the light source to accentuate the positive the lamp bead design into contracts, bright positive visual effect, but due to the construction of lamp bead position deviation will cause some light bead on some dark, side visual areas appear on the side light or light color change and light color difference effect, such as color accurate information on damage seriously affect the enterprise image, so the request for the light source side of basic consistent with positive to light color and brightness. (3) far see clear and comfortable: brightness consistent, uniform, no color difference, no spot; The current landscape and advertising signs, screens, the pursuit of "only bright, the brighter the better" approach to bring unpredictable harm. Judgment identifies how many because of the complexity of the brightness of the light source are not clearly defined, so can only be measured by comfort, if a light was too bright to look into and affect the surrounding crowd life does not agree, brightness a white piece of green, the whole logo mixed snuff etc. These will affect the identity information accurately communicate and visual aesthetics, even damage the image of the city.
2. Stable effect: decline reduction, no discoloration and undead light are the three criteria for judging the effect of the identified light source. Many manufacturers only pursue brightness and reduce the price, often using small chip lamp beads, in order to pursue brightness and increase the current, which will speed up the LED chip attenuation and shorten the life of LED chip. Or USES the small chip or the white light source to add the colored diffuser to cause the lamp the luminescent point to increase, once the diffuser aging becomes yellow will appear the lamp color attenuation and the discoloration until the dead lamp. Attenuation, discoloration and dead light are the basic standards for judging the quality of light source. Once the light source becomes invalid, it will seriously damage the overall appearance of the logo and the transmission of information, seriously damaging the corporate image.
3. Energy saving and environmental protection: good light efficiency, high energy saving and no pollution are important requirements for energy saving and environmental protection of marking light source. Product efficiency: in the same life requirements, the chip small brightness is low, in order to achieve light efficiency needs to increase the number, so also not only increase the construction and material cost but also increase the power consumption; (2) product energy saving: in the same brightness requirements, small chip in order to improve the brightness needs to increase the current, so in increasing the power of the lamp at the same time also shorten the life of the lamp;
4. Material safety: heat dissipation, flame retardant, moisture proof and weather resistance are important guarantees for the safety of marking light source. Since most of the products with luminous signs are used in public places and installed in places such as high-altitude external walls, it is difficult to maintain the light source and even fire fighting. Therefore, LED products are required to have a long life and good quality in the changeable outdoor environment. Accurate design is required for lamp bead quality, chip current design, wire board heat dissipation performance and resistance heat dissipation function. The cold resistance, flame retardant and UV resistance of wire and rubber materials should also have certain scientific requirements. And in the production process of anti-static, waterproof process and other requirements, a lot of quality accidents are caused by heat caused by waterproof short circuit.
5. Standard construction: standard lighting, professional materials and standard installation are important guarantees for stable use of the sign. (1) standard aperture: maximum cascade 50pcs for single end power supply of 9mm series products; Maximum cascade 50pcs for single end power supply of 12mm series products; Wiring construction should connect the positive and negative terminals of each series of lights to the main line, but be careful not to supply power to a group of light sources with two power sources at the same time. (2) professional wire: power line should choose 2.5 square meters of professional anti-oxidation tin national standard wire, wiring to ensure that the product positive and negative pole and power output positive and negative pole is correctly connected, exposed wire and wire connection point must do insulation and protection treatment. (3) professional power supply: the selected power supply must have short circuit protection, overvoltage protection, overload protection and other functions, the output voltage of the power supply must be consistent with the working voltage of the lamp string, the rated load power must be reserved for 20% of the allowance. The power output shall be grouped according to the power of the power source, and the power of each group shall not exceed the average power of the power source. (4) standard wiring: in the process of product installation, if additional connection wire, need to be calculated by the professionals and choose the appropriate specifications and length of wire, otherwise it will increase the circuit loss, cause product power supply shortage or make the wire too hot, cause fire and other hazards. Insulated joint: exposed wire and connection must be insulated during installation and construction. Put an end to be like the picture above the positive pole and the negative pole with adhesive tape together at the same time, the bare tail line should also do a good job of insulation treatment is forbidden to connect the bare line to the word shell to cause safety hazards.
6. Inspection and maintenance: regular maintenance of signs and electrical system is a necessary measure for the safety of signs. (1) leakage protection switch: leakage protection switch with automatic trip protection function, can prevent the total single-phase electric shock accident in the process of electricity. When selecting leakage protector, it should be adapted to the circuit and electrical equipment used. And air switch does not have leakage protection function so should not be used. (2) word shell safe grounding: safe grounding is the high voltage equipment shell and the earth connection. A ground wire, also called a lightning conductor, is a conductor used to introduce electricity to the ground. Electrical equipment leakage, the current through the ground wire into the earth. It is necessary to connect the high-altitude iron word and power input to the ground wire. (3) steel lightning grounding: when the power electronic equipment encountered lightning, whether it is direct lightning or induction lightning, if the lack of corresponding protection, power electronic equipment will be greatly damaged or even scrapped. Therefore, the roof steel structure should be set lightning rod connected to the ground, in case of lightning endanger the safety of equipment and personnel. (4) access lightning conductor: lightning grounding must not be connected with the electrical ground wire together, if the lightning hit the moment, the voltage may reach hundreds of millions of volts, so that other lines produce high voltage instant burn things. If the signboard is higher than the lightning rod in the building or is too far away from the lightning rod should be set independently. (5) maintenance test: maintenance of lighting fixtures, electrical equipment at least once a month maintenance, insulation damage, wire exposed wire, cable should be replaced in a timely manner to ensure safety. Outdoor advertising facilities should be inspected in special weather lighting lines, lamps, electrical equipment and lightning protection facilities.
Iv. Installation and construction process of perforated light
1, plug the light: the appearance of conventional products suitable for 0.6mm to 3.0mm thick plate standard aperture of 9mm or 12mm word, put the perforated light into the word hole according to the hole position, monochrome light to plan the head and tail line and the main line reasonable layout, the full color light should be in accordance with the wiring diagram requirements lamp order, pay attention to the light into the line mark. 2. Wiring: adopt the national standard 2.5 square meters of national standard anti-oxidation tin-plating wire as the main line, connect the positive and negative poles of the head and tail of each series of lights into the main line, and make it waterproof, insulating and short-circuit proof. Full color signal line should be used with shielding function of the super five types of network line. 3. Test lamp: the lamp connected to the wire should be tested according to the actual power supply and the length of the wire. The lamp should be tested for more than 8 hours (it can be tested while installing the light). 4. Installation: in the process of packaging, transportation and installation construction, do not harm the lamp body, line and standard construction, install and test for 8 hours, observe whether the brightness is consistent from various perspectives, dead light color weakness and other conditions, try to simulate 8 hours a day for 3 days, if there is no defect can be removed installation frame. 5, maintenance: should be connected to the leakage protection switch, power grounding, lightning protection and other supporting facilities, and designated special daily maintenance, regular inspection of switches, lines, power, lamps and other products, timely repair defective products.
V. analysis of poor application of perforated light:
(a), applied to products produced in the combustion the cause of the fire analysis: 1, the line of fire: the first thing to check the wire with light load is needed to match, wire diameter is too small for a long time the super load is also easy to fire, secondly to check if there is a failure load, load have poor contact situation, load any rust aging, leakage occurred, and so on and so forth. 2, wire board fire: this situation is generally by increasing the current (current up to 30--40ma) resistance long-term heating, wire board is too thin and poor heat conductivity and then add plastic material not flame retardant lead to fire, the lamp in the case of positive and negative pole short circuit plastic material and wire not flame retardant is also easy to cause fire. 3, rubber fire: in order to reduce the cost of many manufacturers procurement of rubber is shuikou material repeated processing, this kind of rubber material needs to add some chemical ingredients and does not contain flame retardant and cold resistance and other functions. 4, joint fire: in order to facilitate wiring, some customers require lengthening the end and end of the line, hate a joint to a word, in fact, this is easy to cause contact point fever or even fire, some of the tape positive pole package to continue to package negative pole, so more likely to cause a short circuit fire.
Standard color: the standard red wavelength is generally 620-625nm. Increasing or decreasing the lamp brightness will change the color. The standard configuration of chip size and current is also an important factor to ensure the color standard and stability. 2, face whitening: through the fog-like shell using small chip, large current can also increase the Angle of light to attract the eye, but will change the lamp light color to reduce the life of the lamp, from a variety of perspectives to see different colors. 3, far view spot: in order to improve the brightness and save the cost of using small chip, large current, small Angle, but there will be a few lights due to plug slanting led to bright or dark, this practice not only appear on the visual spot phenomenon and increase the power at the same time will reduce the life. 4, far view slants yellow: the use of headlight cup with a small chip plus diffusion agent and lengthen the chip and the lamp holder distance, can increase the front of the luminous area, luminous Angle, brightness, but the front far view effect and side and other perspectives will appear color difference change.
(3) analysis of reasons for the inconsistency between the light color side and the front brightness, as well as the color changes, color changes and color deviation: There are many factors causing the inconsistency of brightness, mainly including production technology and lamp bead structure. 2, side face: one is the lamp bead chip depth problem caused by different luminous point near and far, and then the production process, especially the plastic pouring process when the lamp head is not even, there is the light of the lamp position is loose caused by the lamp skew. 3. Side vision heterochromia: most of the large glass lamp beads that cause this situation are powder of the chip, the color temperature and wavelength of the light emitting after covering a layer of diffusion powder on the chip will change, and the amount and thickness of powder will affect the consistency of brightness. 4, side color slant: this situation is basically 12v red and green perforated light, because the current 12v perforated light only white light, other colors need to be covered with a layer of color powder white light, the front view is more standard side look discoloration, and red, green light in the outdoor ultraviolet light is easy to fade.
(four), just installed when the special light over a few months gradually darkened, discoloration reason analysis:. 1, technical parameters: perforated light due to less equipment, low investment threshold of small production, technology also depends on the light can copy. In fact, each chip and current measurement are not the same. Scientific and reasonable configuration can achieve the goal of energy saving and stability. 2, the initial installation is very bright: this situation is generally the use of small chip or not the package of chip, increase the current (current up to 30--40ma) to improve the brightness will not only affect the life of the lamp and lamp beads and accessories heat will lead to fire and other accidents. 3, dim and fade: small chip lamp beads increase current technology products are not suitable for outdoor shopping malls, hotels and entertainment places that need to work for a long time, luminous time of 300-500 hours or more will gradually fade and discolor until the chip failure dead light. 4. Color change: 5v big-cup lamp beads with chip powder and 12v red and white chip powder
