Temperature Monitoring Apparatus For Textile Machines

Abstract: The present invention generally relates to the field of temperature monitoring system for electric machines and generators. More particularly the present invention relates to the field of wireless monitoring system for textile machines and machinery components. BACKGROUND OF THE INVENTION Electric machine is a term of machine using electromagnetic force such as electric motors and electric generators, etc. Electric machine converts electrical energy into mechanical energy by electromagnetic force. The reverse of this conversion of mechanical energy into electrical energy is done by electric generator. It operates through interaction between electric motor"s magnetic field and winding currents to generate rotary force. Electric motors are widely utilized to produce linear and rotary force that converts electrical energy into motion. Those machines i.e motors are commonly used for diverse applications such as industrial, households, machine tools and etc. All electric machines are powered by either alternating or direct current. The continual running of an^ electric machine leads to generation of operational temperature. Also, gradual increase in the load of the electric machine leads to increasing the operational temperature. The rise in operational temperature of an electric motor affects the performance of that motor and damages the concentrated rotary coil windings. Diverse method and technique have been devised to reduce the temperature and monitor the operational temperature of an electric machine. Normally, the motor heat is reduced by fan mounted to the shaft of the motor. In the existing method, temperature of the electric machine is measured by electric thermal sensitive resisting means such as thermistors. The electric thermal sensitive resisting means whose prime function is to exhibit a predictable and precise change in electrical resistance when subjected to a corresponding change in body temperature. Decrease in electrical resistance when electrical thermal sensitive resisting means subjected to a corresponding change in body temperature shows the negative temperature coefficient. Increase in electrical resistance when the electrical thermal sensitive resisting means subjected to a corresponding change in body temperature shows the positive temperature coefficient. Indian patent application 201727027873 discloses a protection device for a servomotor for detecting the temperature of an electric motor. The protection device have temperature and resistance detection unit. Temperature detection unit detects the temperature of U-phase coil, V-phase coil and W-phase coil by temperature sensing means. The resistance detection unit detects the resistance value of corresponding coils. The change in resistance of the coil leads change in coils temperature. If the temperature exceeds a set temperature resulting to stops the driving motor. Indian patent application 201621010876 discloses a motor protection relay with multiple sensor interface. The temperature, pressure, load and"speed sensing means detect the driving motor state and sends the signal to the CPU. According to the sensed values from sensing means the CPU activates the driving motor relay switch. However, the depicted existing disclosure detects and monitor the electric machine temperature by electric thermal sensitive resisting means and sends the signal through wire. To overcome the disadvantages present in the existing methods and to solve the above depicted problems, the present invention provides a wireless temperature monitoring system for Electric machines such as motors and generators. OBJECTIVE OF THE INVENTION The primary object of the present invention is to monitor the electric machine temperature and wirelessly communicate the sensed data to the server. Another object of the present invention is to introduce wireless electrical thermal sensitive resisting means to monitor the temperature of the electric machines such as motor. Yet another object of the present invention is to transmit the detected temperature value from electric machine to control or monitoring unit through wireless data transmission such as Wi-Fi, Bluetooth, IR, ZigBee and radio frequency. Still further object of the present invention is to communicate the temperature value of an electric machine at every instant time through wireless network by using user interface device such computer, tablet, mobile phone and etc. Those and another advancement of the present invention is to prevent the electric machine causes due to excess temperature rise and user can able to monitor the operating temperature value of electric machine continuously. BRIEF DESCRIPTION OF THE DRAWINGS The above and other aspects, features, and advantages of certain exemplary embodiment of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings in which: Figure 1 is a schematic view of electric machine mounted with wireless sensing means in accordance with the present invention. Figure 2 is a detailed view of wireless sensing means in accordance with the present invention. Figure 3 is a schematic view of wireless data transmission system in accordance with the present invention. Figure 4a discloses the block diagram of a wireless thermal electric resisting means in accordance with the present invention Figure 4b depicts the block diagram of base station in accordance with the present invention. SUMMARY OF THE INVENTION Figure 1 illustrates the schematic view of electric machine mounted with electric thermal sensitive resisting means (11) in accordance with the present invention. An exemplary embodiment of an electric motor (11) comprises of different parts such as shaft (16), terminal box (13), End shield (12), fan cover (14), stator frame (17) and at least one wireless electric thermal sensing means (15). The shaft (16) is connected to the rotor of the electric motor and concentrically mounted on the center portion of the stator frame. The stator frame (17) has stator winding slots to wound the electric coils inside the slots. The winding coils are electrically connected to the terminal box (13). The end shield (12) is used to shield one of the open portion of the stator frame (17) and also provide support to the shaft. Fan cover (14) is utilized to provide shield on another open portion of the stator frame (17). The wireless electric thermal sensing means (15) is mounted on the outer surface of the stator frame (17) for measuring the temperature value of the electric motor. The wireless electric sensing means (15) measures the changes in operational temperature of said electric motor. Figure 2 illustrates a detailed view of wireless electric thermal sensing means (15) in accordance with the present invention. The wireless electric thermal sensing means is mounted preferably on the stator frame (17) outer surface for measuring the operating motor temperature. The wireless sensing means (15) comprises of sensing means mount pad (24), sensor (23), battery (not shown) and transmitting means (22). The sensing means (23) senses the outer surface temperature and converts the value into electrical signals. Then the electrical signals are transmitted through transmitting means (22). Said transmitting means transmits the sensed data preferably through wireless mode. Figure 3 depicts the schematic view of wireless data transmission system (31) in accordance with the present invention. Plurality of motors mounted in the various spinning machines are comprising at least a wireless sensing means (11). Said wireless sensing means are wirelessly connected to the base station (32). The base station (32) collects the data from plurality of wireless sensing means through wireless transmitting means. The wireless modules are preferably a Zigbee, IR, Bluetooth, Wi-Fi and Radio frequency based on the requirement. The base station (32) stores the collected data in a server. The base station (32) is connected to the router (33) for transmitting data from plurality of sensing means. The router (33) is wirelessly connected to the user interface device for monitoring the temperature value from plurality of sensing means. The user interface device such as computer (34), tablet (35) and mobile phone (36). The user interface device have a Wi-Fi, Bluetooth and internet connectivity to get the on time information from plurality of sensing means. The user interface device such as tablet (35) and mobile phone (26) have an inbuilt mobile application to display the measured value. Figure 4a discloses the block diagram of a wireless thermal electric resisting means in accordance with the embodiment of present invention. The wireless sensing means (41) comprises of a sensor (43), battery (42) and transmitting means (44). The sensing means (43) have a metal strip which is having contact with stator frame. The electric current passes through the metal strip when it is contact with stator frame. The heat should be passed from stator frame to metal strip which causes the resistivity change in the metal strip; Based on the resistivity of metal strip the temperature values should be fluctuated. The electric signal is transmitted to the transmitting means (44). Figure 4b depicts the block diagram of base station data receiving unit (51) in accordance with the embodiment of present invention. The base station data receiving unit (51) comprises ofvreceiving means (55), base station (54), router (53) and battery (52). The receiving means (55) collects the data from plurality of wireless sensing means and stored in a base station. The collected data are processed in the micro controller provided at the base station and transferred to the router device (53). The router sends the collected data to various user interface devices.

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