Heater for motor vehicle

A heater for a motor vehicle comprising:

• a heat source part;
• a heat source part rod including a rod sidewall and a rod cover which receives the heat source part;
• a first heat radiating plate including a first heat generation region and a first air movement region, the first air movement region having at least one first air through-hole, which has a slit-shape with a line direction, formed therein, the heat source part disposed on a first side of the first heat radiating plate, and the rod sidewall formed integrally with the first heat radiating plate;
• and
• a second heat radiating plate including a second heat generation region and a second air movement region, the second air movement region having at least one second air through-hole formed therein,
• wherein the heat source part is disposed between the first heat radiating plate and the second heat radiating plate, and
• wherein the second air through-hole, which has a slit shape with a line direction, is disposed so that the line direction of the second air through-hole intersects the line direction of the first air through-hole when viewed in a direction of air movement,
• wherein the heat source part includes a positive temperature coefficient device, an electrode plate electrically contacting the positive temperature coefficient device, and an insulating guide member insulating the positive temperature coefficient device and the electrode plate from the rod sidewall,
• wherein the insulating guide member is formed in a tube shape with a slit-shaped electrode plate receiver into which the electrode plate is inserted, the slit-shaped electrode plate receiver is a hollow inner space of the insulating guide member, and
• wherein the insulating guide member has an opening part penetrating through surfaces of the tube shape, wherein the slit-shaped electrode plate receiver communicates with the opening part, and the positive temperature coefficient device is inserted into the opening part, wherein the positive temperature coefficient device is electrically contacting the electrode plate.