An add-on housing is provided comprising a frame-shaped basic shape which encloses a receiving region for receiving a contact insert or a holding frame fitted with plug-in connector modules, wherein at least two fastening surfaces having fastening openings are integrally formed on the outside of the frame-shaped basic shape, wherein the add-on housing has snap-fastening means or devices which engage through the fastening openings in order to mechanically fasten the add-on housing to a through-hole in a device wall. A method for fastening an add-on housing to a through-hole in a device wall is also provided, wherein: the add-on housing has fastening openings which are in alignment with corresponding fastening openings in the device wall; snap-fastening means or devices having a box-shaped main body and having opposing and resiliently mounted base portions laterally protruding from said main body are inserted into the mutually aligned fastening openings in the add-on housing and the device wall; the base portions, upon insertion into the fastening openings, are first pressed into the box-shaped main body and then extend to engage the device wall.

[Problem] Provided is an airtight terminal that is configured to lessen distortion-borne stress caused in a metallic outer ring as a result of screw fastening or other fixing means to prevent the stress from readily propagating to an insulating material in a sealed place of a lead.

[Solution] An airtight terminal is provided that includes a metallic outer ring 13 having through holes 11 formed for screw fastening and sealing holes 12, leads 14 inserted through the sealing holes 12 in the metallic outer ring 13, and pieces of an insulating, material 15 to seal gaps between the metallic outer ring 13 and the respective leads 14. The metallic outer ring 13 is provided with pairs of cavities 13a and steps 13b surrounding the respective sealing holes 12.

A processing apparatus includes a chuck table that holds a workpiece, a processing unit that processes the workpiece held by the chuck table, and a panel that surrounds components including the chuck table and the processing unit. Power source sockets are disposed on the panel, and electric apparatuses including an inspection device, a personal computer, a fan, and a cleaner are connected to the power source sockets and are used.

A processing apparatus includes a chuck table that holds a workpiece, a processing unit that processes the workpiece held by the chuck table, and a panel that surrounds components including the chuck table and the processing unit. Power source sockets are disposed on the panel, and electric apparatuses including an inspection device, a personal computer, a fan, and a cleaner are connected to the power source sockets and are used.

An electronic equipment comprises a case and a connector which is attached to the case. The connector comprises a housing and a waterproofing member. The waterproofing member is sandwiched by a mating connector and a side portion of the housing in a second direction when the connector is mated with the mating connector. The waterproofing member has at least one first contact portion, at least one second contact portion, at least one third contact portion and at least one fourth contact portion. The third contact portion is pressed against the side portion in the second direction by elasticity of the waterproofing member upon the mating of the connector with the mating connector. The fourth contact portion is pressed against and in contact with the mating connector in the second direction by the elasticity of the waterproofing member upon the mating of the connector with the mating connector.

An electronic equipment comprises a case and a connector which is attached to the case. The connector comprises a housing and a waterproofing member. The waterproofing member is sandwiched by a mating connector and a side portion of the housing in a second direction when the connector is mated with the mating connector. The waterproofing member has at least one first contact portion, at least one second contact portion, at least one third contact portion and at least one fourth contact portion. The third contact portion is pressed against the side portion in the second direction by elasticity of the waterproofing member upon the mating of the connector with the mating connector. The fourth contact portion is pressed against and in contact with the mating connector in the second direction by the elasticity of the waterproofing member upon the mating of the connector with the mating connector.

The invention relates to an electrical plug connector, with a housing (1) with at least one insertion opening (2) for a complementary plug connector and a contact carrier (3), arranged in the housing (1), for the electrical contacts accessible through the insertion opening(s). Two concentrically arranged housing parts (5, 6) are connected to one another via a base (8) on the end opposite the at least one insertion opening (2). Between the housing parts (5, 6), an annular intermediate space (7) is formed as an annular receiving opening for the plug extension of a complementary plug connector. A receiving space (9) for the contact carrier (3) is provided inside the internal housing part (6).

The invention relates to an electrical plug connector, with a housing (1) with at least one insertion opening (2) for a complementary plug connector and a contact carrier (3), arranged in the housing (1), for the electrical contacts accessible through the insertion opening(s). Two concentrically arranged housing parts (5, 6) are connected to one another via a base (8) on the end opposite the at least one insertion opening (2). Between the housing parts (5, 6), an annular intermediate space (7) is formed as an annular receiving opening for the plug extension of a complementary plug connector. A receiving space (9) for the contact carrier (3) is provided inside the internal housing part (6).

A connection component including: a main body to be attached to a case; and an annular ring that is elastic and into which the main body is inserted, wherein the annular ring deforms between a first thickness at which the annular ring is in contact with the main body and is not in contact with the case when a compressive force that acts in an insertion direction into the case does not occur, and a second thickness at which the annular ring is in contact with both the main body and the case when the compressive force that acts in the insertion direction into the case occurs.

A connection component including: a main body to be attached to a case; and an annular ring that is elastic and into which the main body is inserted, wherein the annular ring deforms between a first thickness at which the annular ring is in contact with the main body and is not in contact with the case when a compressive force that acts in an insertion direction into the case does not occur, and a second thickness at which the annular ring is in contact with both the main body and the case when the compressive force that acts in the insertion direction into the case occurs.