Mechanical system of shaking head lamp

Mechanical systems cover a wide range, including materials, structures, mechanical properties, shell requirements, heat dissipation requirements and so on. The main considerations in selecting lamp materials are: meeting the functional requirements of lamps, manufacturing difficulty and economy. The main materials of 1200W shaking head lamp at home and abroad are steel, plastic and aluminum alloy. On the premise of satisfying the overall function of the lamp, the structural model of the lamp is designed, which is divided into different parts and made of different materials. For example, ACEDA-SPOT1200III1200W shaking head lamp, the lamp body shell is made of plastic parts, and the lamp body support frame, base, side plates and end plates are made of aluminum alloy castings, stamping parts and car parts.

The structure of the lamp determines its mechanical performance, heat dissipation, strength, noise, weight and other factors. The international and domestic 1200W shaking head lamps all adopt double-arm support structure, and the lamp body rotates horizontally by 540 and vertically by 255. The base part needs to be strengthened to meet the requirement of hanging upside down of the shaking light.

The mechanical properties of the lamp body are mainly reflected in the mechanical strength of the lamp body parts, so that the lamp body is not deformed, wear-resistant, corrosion-resistant, earthquake-resistant and compressive during continuous and effective working hours; The shell of lamps and lanterns must have strict waterproof, dustproof, antistatic and moisture-proof requirements. According to the degree of dustproof and waterproof, the protection grade requirements of different enclosures are classified: for example, the protection grade of computer lamps used indoors is usually IP20, and the protection grade of outdoor computer lamps is usually IP44.

The mechanical structure of 1200W high-power computer lamp is very important. If the cooling system is defective, it will usually lead to the drift of electrical parameters, the rupture of color films and films, and the appearance of patches, leading to serious consequences such as crash, out of step and out of control. Most professional 1200W computer lights around the world use rare gas discharge bubble light source. The start-up and stable operation of gas discharge bubbles depend on the design of circuit types and the selection of electrical components such as power supply and ballast. After the rare gas discharge bubble is started, generally no stabilization time is needed. In order to ensure stability, the difference between the maintenance voltage of the circuit and the instantaneous voltage of the bulb should be large enough during the whole AC cycle.

The start, stability, extinction and restart of light source should be designed according to the characteristics of light source. The starting voltage of rare gas discharge bubbles is very high, which requires transformers, starting devices and semi-oscillator circuits to improve the instantaneous starting voltage. The stability of light source after starting depends on the matching of ballast and circuit parameters. The basic function of ballast is to prevent the current from getting out of control and make the light source work under its normal electrical characteristics. Manufacturers usually use two kinds of ballasts, one is inductive rectifier and the other is electronic ballast. The advantage of inductance rectifier is good stability, but the disadvantage is that it is bulky and requires high strength, handling and loading and unloading of lamp body. Electronic ballast is essentially a power conversion circuit, which changes the frequency, waveform and amplitude of input power current. Its advantages are light weight and convenient handling. The disadvantages are high structural design requirements and high maintenance costs. DMX data format is widely used at home and abroad to write computer lamp program files. Principle of DMX5 12: The speed of DMX data stream is 250K, that is, each bit is standard 4 microseconds. The data format of DMX is divided into the following parts: 1)IDLE or NODMXsituation: when there is no DMX packet output, it will be a high-level signal; 2) break: the beginning of DMX packet is an 88 microsecond low-level output forecast (header); 3) Post-break mark (MAB): MAB is the high level of 8 microseconds or 2 pulses after break; 4)STARTCODE(SC): SC is the channel data at the beginning of the data stream, which has the same format as the channel data, and is generally 1 1 pulse or 44 microseconds; 5) Mark time between frames (MTBF): MTBF can be 0- 1 sec, less than 1 sec, and can be set to high level before the start bit of each channel; 6) Channel data (CD): the logical format of the channel data frame after SC is 1-5 12 or less; 7) marktimebetweenpacks (mtbp): send high level after sending valid data.

The computer lamp effect is produced by different modeling scenes, different color changes, different viewing angles, horizontal and vertical light angles, speed, strobe speed, aperture size changes and focal length changes. The work of all these attribute indexes is realized by the transmission of stepping motor. Through the definition and programming of electrical operation parameters of stepping motor, the control of computer lamp is completed.

Brand: Ou Xingde

Model: OX-66

Power: 250W/575W/ 1200W

Voltage:110-220v/50hz.

Light source: HWI dysprosium lamp

Service life: the export specification is 800H- 1000H.

Guangtongliang: 1 10000LM

Color: 8 patterns

Color temperature: 6000K

Rotation: rotate 360 degrees horizontally and scan 270 degrees vertically.

Material: Cow lamp body is made of aluminum alloy and steel, which is durable.

Fan: ball bearing 50000H.