Pressure sensor capable of improving assembling efficiency by using spring electrode

A pressure sensor, comprising:

• a metal diaphragm configured to have a pressure sensing part disposed thereover;
• a first support configured to be coupled with the metal diaphragm;
• a first printed circuit board configured to be disposed over the pressure sensing part while being supported to the first support and electrically connected to the pressure sensing part;
• a connector configured to have a lower portion press-fitted with the first printed circuit board;
• a second printed circuit board configured to be electrically connected to the first printed circuit board through the connector while being press-fitted with an upper portion of the connector and supported by the connector while being spaced apart upward of the first printed circuit board;
• a second support configured to be disposed over the second printed circuit board;
• and
• a spring electrode configured to have an upper end protruding upward of the second support while penetrating through the second support and have a lower end connected to the second printed circuit board.