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Characteristics of M1 heating mat
| Characteristics of M1 heating mat | |
|---|---|
| Supply voltage | 12 V |
| Power | 32 W for full powering of the strips, 16 W for selective powering |
| Maximum heating temperature | 60 °C |
| Mat dimensions | 470×300 mm |
| Additional information | The upper “patches” enable fastening the mat to the seat or back-rest |
Values of thermal power for courses made of carbon threads
| Width and resistance of the heating strip | Supply voltage | Power 1 (I×U), W | Power 2 (I2·R), W | Power 3 (U2/R), W |
|---|---|---|---|---|
| 1 course 219 W | U = 12 V | 0.60 | 0.55 | 0.66 |
| U = 24 V | 2.64 | 2.65 | 2.63 | |
| 2 courses 109 W | U = 12 V | 1.20 | 1.09 | 1.32 |
| U = 24 V | 5.52 | 5.77 | 5.28 | |
| 3 courses 77 W | U = 12 V | 1.80 | 1.73 | 1.87 |
| U = 24 V | 8.16 | 8.90 | 7.48 | |
| 4 courses 56 W | U = 12 V | 2.52 | 2.47 | 2.57 |
| U = 24 V | 11.52 | 12.90 | 10.29 | |
| 5 courses 45 W | U = 12 V | 3.24 | 3.28 | 3.20 |
| U = 24 V | 14.88 | 17.30 | 12.80 | |
| 6 courses 37 W | U = 12 V | 4.08 | 4.28 | 3.89 |
| U = 24 V | 18.96 | 23.09 | 15.57 |
Resistance measurements for individual heating strips of the fabric made of carbon yarn
| Number of courses made of carbon yarn | Length of the strip after 24-hour relaxation, cm | Length of the course after stretching, cm | Length increase, % | Average resistance value of the strip after 24-hour relaxation, Ω | Average resistance value of the strip after stretching, Ω | Change in resistance value, % |
|---|---|---|---|---|---|---|
| 1 | 15.0 | 22 | 47 | 219 | 179 | -18.3 |
| 2 | 16.0 | 22 | 38 | 109 | 98 | -9.7 |
| 3 | 16.5 | 22 | 33 | 77 | 73 | -5.3 |
| 4 | 17.0 | 22 | 29 | 56 | 57 | 1.8 |
| 5 | 17.5 | 22 | 26 | 45 | 45 | 0.0 |
| 6 | 18.0 | 22 | 22 | 37 | 38 | 2.7 |
Selection of the number of carbon yarn strips and strips and courses made of cotton yarn in a knitted radiator
| Variant | Number of carbon yarn courses in 1 strip | Number of cotton yarn courses in 1 strip | Number of carbon yarn strips | Equivalent resistance of the radiator, Riz, Ω | Number of cotton yarn strips | Number of remaining courses | Heaating surface, % | Current I, A | Thermal power of the heater, PQi, W |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | 8 | 13 | 3.46 | 12 | 74 | 69 | 2.70 | 25.2 |
| 2 | 5 | 9 | 13 | 3.46 | 12 | 62 | 74 | 2.70 | 25.2 |
| 3 | 5 | 10 | 13 | 3.46 | 12 | 50 | 79 | 2.70 | 25.2 |
| 4 | 5 | 8 | 8 | 5.62 | 7 | 139 | 41 | 1.68 | 15.9 |
| 5 | 5 | 8 | 9 | 5.00 | 8 | 126 | 46 | 1.91 | 18.2 |
| 6 | 5 | 8 | 10 | 4.50 | 9 | 113 | 52 | 2.11 | 20.0 |