Igniter assembly and gas generator

An igniter assembly, comprising:

• an igniter including a container made of metal and an ignition charge, the igniter being configured to emit a combustion product of the ignition charge to an outside of the container when a lid wall portion is ruptured when the igniter is operated, the container including a peripheral wall portion having a tubular shape and the lid wall portion configured to close one end portion of the peripheral wall portion, the ignition charge being filled in an accommodating space defined by the peripheral wall portion and the lid wall portion;
• and
• a tubular wall portion made of resin and formed in a tubular shape in a manner that the peripheral wall portion is surrounded, the tubular wall portion inwardly forming an emitting space in which the combustion product of the ignition charge is emitted, wherein
• the lid wall portion includes an annular outer peripheral region portion disposed inside the peripheral wall portion in a radial direction of the peripheral wall portion, and a central region portion positioned inside the outer peripheral region portion in a radial direction, an outer periphery of the outer peripheral region portion is connected to the peripheral wall portion at a first connection portion, and an outer periphery of the central region portion is connected to the outer peripheral region portion at a second connection portion,
• the outer peripheral region portion is formed thicker than the central region portion, and
• a thickness of the annular outer peripheral region portion in an axial direction of the peripheral wall portion is greater than a thickness of the peripheral wall portion in a radial direction of the peripheral wall portion, such that upon activation of the igniter assembly, the annular outer peripheral region portion is configured to deform at the first connection portion in an upward direction by a first angle with respect to a central axis of the igniter assembly, and the central region portion is configured to deform in the upward direction at the second connection portion by a second angle with respect to the annular outer peripheral region portion.

An igniter assembly, comprising:

• an igniter including a container made of metal and an ignition charge, the igniter being configured to emit a combustion product of the ignition charge to an outside of the container when a lid wall portion is ruptured when the igniter is operated, the container including a peripheral wall portion having a tubular shape and the lid wall portion configured to close one end portion of the peripheral wall portion, the ignition charge being filled in an accommodating space defined by the peripheral wall portion and the lid wall portion;
• and
• a tubular wall portion made of resin and formed in a tubular shape in a manner that the peripheral wall portion is surrounded, the tubular wall portion inwardly forming an emitting space in which the combustion product of the ignition charge is emitted, wherein
• the lid wall portion includes an annular outer peripheral region portion disposed inside the peripheral wall portion in a radial direction of the peripheral wall portion, and a central region portion positioned inside the outer peripheral region portion in a radial direction, an outer periphery of the outer peripheral region portion is connected to the peripheral wall portion at a first connection portion, and an outer periphery of the central region portion is connected to the outer peripheral region portion at a second connection portion,
• the outer peripheral region portion is formed thicker than the central region portion, and
• an outer peripheral edge of the central region portion includes a thick edge to form a three-step thickness in the lid wall portion, such that upon activation of the igniter assembly, the annular outer peripheral region portion is configured to deform at the first connection portion in an upward direction by a first angle with respect to a central axis of the igniter assembly, and the central region portion is configured to deform in the upward direction at the second connection portion by a second angle with respect to the annular outer peripheral region portion.