Claims:1. Solar Panel Cleaning Sprinkler with built-in Clamp and Pipe Holder comprising of Sprinkler, clamp and pipe holder in given design and configuration.
2. Solar Panel Cleaning Sprinkler with built-in Clamp and Pipe Holder as claimed in 1, wherein the Sprinkler Nozzle Design creates Rain Curtain pattern of 180 degrees to clean the panels.
3. Solar Panel Cleaning Sprinkler with built-in Clamp and Pipe Holder as claimed in 1, wherein the Clamp design clips on to any Solar Panel used in Residential or commercial solar plant for generation of electricity.
4. Solar Panel Cleaning Sprinkler with built-in Clamp and Pipe Holder as claimed in 1, wherein Pipe holder design is used to support the pipe. , Description:Field of Invention
The present invention relates to Automatic Cleaning of Solar Panels via Sprinkler method in most affordable and contactless way.

Background of the Invention
Solar Energy is one of the most prominent and promising sources of energy in recent times. Solar Energy installations both in Residential as well as commercial sectors are growing by leaps and bounds. Solar Panels form the most important part of this energy source which converts sunlight into electrical energy. Solar panels are installed outside where they can get maximum sunlight. Since they are outside, they are prone to outside dust, dirt, leaves, bird droppings etc. All these parameters reduce the output of the solar panels and in long run also reduces solar panel efficiency. With dust, dirt etc the output of solar panels falls by 30% to 40%. Regular cleaning of Solar panel is one of the main obstacles or the only drawback in this zero-maintenance system.
There are Automatic and Manual ways to clean the solar panels. Manual cleaning of solar panels is still the only route which more than 90 percent of Solar Plant owners go with. This is due to high prices and also feasibility of Automated Cleaning systems on non-standard installation area of the solar plants. Manual or Labour-intensive cleaning is also becoming expensive and also too much dependency on labour and difficulties in giving access to personnel for reaching rooftops in residential and commercial buildings are the issues in this method of cleaning.
Fixed automated Sprinkling systems are solutions which are more feasible for most of the solar installations in the market. These systems are not as costly as the robotics system also the maintenance is very less. Still these systems are relatively costly looking at the size of Power plants as well as parts and material used. Usually these systems employ agricultural and garden irrigation systems to design the solutions. There are no standard sprinkler systems in the market. Also, these systems are not efficient in terms of installations, water usage as well as pricing.
Below are the drawbacks of present sprinkler systems available:
a. Irrigation and garden sprinklers are substantial in size which need more installation space. Due to its size they cause shadows on other panels usually which are on back as well as those in cascade formation. Also, there are standard components and procedures for installation of solar panels so installing any equipment in between panels is not always possible.
b. These sprinklers have no provision of installing them on solar panels so drilling the frame of the panel and fixing them using custom brackets or using hard PVC piping and supporting them by tying them to structures are the present ways employed. Most of the Solar Panel manufacturers have no warranty against drilling or welding against the frame of solar panels. Also frame thickness is different for different solar panels which results in nonstandard brackets or parts for installation of these systems.
c. The water output from these sprinklers is quite high since the main purpose of these sprinklers is to provide abundant water to land. But solar panels need very less water to wash off layer of dirt, dust etc. Also, only a part of water spread is useful rest is wasted since the sprinklers are used to cover large areas whereas solar panels are installed in sections and require proper orientation as well as water spread according to their physical requirements. Thus, water wastage is also an issue faced while employing these sprinklers.
d. Cost of irrigation sprinklers, cost of custom brackets, cost of PVC / GI pipes used in plumbing as well as accessories and time required to install the system and no standards at present make these systems costly to employ in cleaning of the solar plants.

Description of the Invention
In order to solve the previously mentioned problems, the proposed invention has been made. The invention provides solution to all the problems and makes Automatic cleaning Sprinkler systems affordable and easy to install and use.
As per Fig. 1, the single unit can be virtually divided into 3 parts as mentioned, Sprinkler (1), Clamp (2) and Pipe holder (3).
The invented part clamps to most of the Solar Panels available in market which are used in Residential or commercial solar plant for generation of electricity. The Clamp does not require tightening or screwing, the part itself clips on to the solar panel such that once fit it does not disengage without manual intervention by pulling the lower part of clamp.
The invention Sprinkler is quite compact. As per Fig. 2, the overall dimensions of the unit / part are length (a) is 9cm, Height (b) is 5cm and Width (c) is 1.5cm. Distance between the panel and end part of sprinkler (d) is 1.2cm and height between top of the panel till top the Sprinkler (e) is 1.5cm.
Dimensions (c), (d) and (e) are of particular importance. Since Solar panels when in cascade for are quite near to each other the normal distance between them is 2 cm to 3 cm. Due to small dimensions of (c) and (d) of the invented part, the part can be installed without any effect to the installed panels. It will just fit right between the panels. Dimension (e) is also very small so as to cause any shadow on the panel which is situated at back or in cascade.
The Sprinkler Nozzle part as shown in Fig 3. is itself quite small. The overall dimensions are 2cm x 1 cm x 1cm. The Nozzle walls are designed specially so that they create the pattern of 180 degrees rain curtain with water or any cleaning liquid. All the water spread is aprayed on the Solar Panels and does effective rinsing of the panels in matter of just few seconds. The pattern created by the sprinkler is shown in Fig. 4.
One Sprinkler unit is used to clean two solar panels and subsequent designing can be done for multiple solar panels in any configuration.
As per Fig. 1, Pipe Holder as the name suggest is used to support the primary pipe. The pipe will not require any means to hold it.
For piping purpose in the invented Sprinkler, agricultural flexible HDPE irrigation pipes are selected as standard pipes. These pipes are quite robust and also inexpensive and readily available in market. As shown in Fig. 8, a primary HDPE Flexible irrigation pipe of 20-24mm diameter is passed through the pipe holder. A secondary pipe of 4mm is connected between the sprinkler nozzle input and primary pipe. All HDPE irrigation pipes and accessories are used to do the connections. The accessories are also quite inexpensive. The pipes can be connected to an residential or agricultural water pumps of correct specification. The water pump can be controlled manually or through automatic controller.
General installation of the Sprinkler is shown as per:
Fig. 5 Shows the part installed or clamped on Solar panel.
Fig. 6shows the top part on solar panel, clamped to the frame and position of Sprinkler.
Fig. 7 shows the bottom part of the installed part, clamped to bottom frame of solar panel.
Fig. 8 shows the part with Primary and Secondary piping.
Fig. 9 shows the water being sprayed on the panels.

The invented Sprinkler is also to be made of Robust ABS plastic. Given the dimensions of the invented unit the invented part will also be quite affordable. This whole system will bring down the cost of installing the Automatic Solar Panel Cleaning Sprinkler System. With a proper set of parts as described above, it will set standards for designing the cleaning system using sprinklers. Also, no special tools and equipment are needed for installation. Any person with set skills can design and install the system without having to experiment with it. The time and cost required for overall installation will also be very less.
Thus, the invented part, Solar Panel Cleaning Sprinkler with built-in Clamp and Pipe Holder can be seen as an innovative and major component of promoting the use of Automatic Solar Panel Cleaning systems.
Although the present invention has been described in accordance with the embodiments shown, one of ordinary skill in the art will readily recognize that there could be variations to the embodiments and those variations would be within the spirit and scope of the present invention. Accordingly, many modifications may be made by one of ordinary skill in the art without departing from the spirit and scope of the appended claims.