An improved perforating gun with novel endplates is disclosed along with a corresponding method of assembly. The endplate includes a base with a first end separated from a second end separated by a curved sidewall centered around a longitudinal axis and a set of tube tabs flexibly coupled to the base and extending from the second end. Each of the set of tube tabs has a retaining lip and is generally oriented in a direction of the longitudinal axis. The endplate may include an optional carrier tab with an integrated alignment pin. Selected embodiments may also include a zero-tension connector with a sliding contact mounted within a cavity of a housing, a through-wire connected to the sliding contact. The novel endplate reduces the cost and complexity of manufacture and installation.

A corrosion prevention structure for connectors includes: a boot which covers plural connectors for power distribution to be concentrated together on a front side of a battery and through which plural cables extending respectively from the plural connectors are inserted; and a clamp which tightly binds the plural cables over the boot.

A corrosion prevention structure for connectors includes: a boot which covers plural connectors for power distribution to be concentrated together on a front side of a battery and through which plural cables extending respectively from the plural connectors are inserted; and a clamp which tightly binds the plural cables over the boot.

A panelboard assembly for a harsh and/or hazardous environment is provided. The panelboard assembly includes a core assembly. The core assembly includes a main breaker assembly configured to be electrically connected to a power supply, and a branch breaker assembly electrically connected to the main breaker assembly and configured to be electrically connected to one or more loads, and a power distribution heatsink assembly. The power distribution heatsink assembly includes an electrically-conductive heatsink having a first end and an opposing second end, the first end electrically connected to the core assembly and an electrically-nonconductive isolator electrically insulating the heatsink.

An electric tool includes a body, a battery pack, and a guide portion including a primary guide unit and a secondary guide unit. The primary guide unit and the secondary guide unit each extend in a preset direction and the primary guide unit and the secondary guide unit each are arranged in the longitudinal direction between a connecting portion of the battery pack and a mounting portion of the body. The primary guide unit and the secondary guide unit implement rigid mating. The primary guide unit includes primary mating surfaces mating with each other in the transverse direction, the secondary guide unit includes secondary mating surfaces mating with each other in the transverse direction, and a ratio of a width of a transverse gap between the primary mating surfaces to a width of a transverse gap between the secondary mating surfaces is greater than or equal to 0.3.

An electric tool includes a body, a battery pack, and a guide portion including a primary guide unit and a secondary guide unit. The primary guide unit and the secondary guide unit each extend in a preset direction and the primary guide unit and the secondary guide unit each are arranged in the longitudinal direction between a connecting portion of the battery pack and a mounting portion of the body. The primary guide unit and the secondary guide unit implement rigid mating. The primary guide unit includes primary mating surfaces mating with each other in the transverse direction, the secondary guide unit includes secondary mating surfaces mating with each other in the transverse direction, and a ratio of a width of a transverse gap between the primary mating surfaces to a width of a transverse gap between the secondary mating surfaces is greater than or equal to 0.3.

A connector assembly including a shielding cage and a liquid cooling cabin. The shielding cage has an insertion space and a window in communication with the insertion space. The liquid cooling cabin is configured to allow a cooling liquid to circulate and flow inside, the liquid cooling cabin comprises a shell having an opening, a thermal coupling cover provided at the opening of the shell, and an elastic sealing unit sealing a gap between the thermal coupling cover and the shell, the thermal coupling cover having a thermal coupling plate entering into the insertion space via the window of the shielding cage, the thermal coupling plate being capable of elastically moving in a direction close to the shell and elastically restoring in a direction away from the shell by a function of the elastic sealing unit.

A connector assembly including a shielding cage and a liquid cooling cabin. The shielding cage has an insertion space and a window in communication with the insertion space. The liquid cooling cabin is configured to allow a cooling liquid to circulate and flow inside, the liquid cooling cabin comprises a shell having an opening, a thermal coupling cover provided at the opening of the shell, and an elastic sealing unit sealing a gap between the thermal coupling cover and the shell, the thermal coupling cover having a thermal coupling plate entering into the insertion space via the window of the shielding cage, the thermal coupling plate being capable of elastically moving in a direction close to the shell and elastically restoring in a direction away from the shell by a function of the elastic sealing unit.

An interface connector disposed at a circuit board, comprising a housing, a first heat dissipating member, and a second heat dissipating member. A first accommodating space is disposed in the housing. The first accommodating space accommodates a first mating connector. One side of the housing is disposed at the circuit board. The first heat dissipating member is disposed at the outside of the housing. The first heat dissipating member passes through the housing and extends into the first accommodating space to be connected with the first mating connector. The second heat dissipating member is disposed at the circuit board. The second heat dissipating member passes through the circuit board and the housing and extends into the housing. The heat from the first mating connector is dissipated through the components of the first heat dissipating member. Thus the heat dissipation issue of mating connector having high power chips can be solved.

An interface connector disposed at a circuit board, comprising a housing, a first heat dissipating member, and a second heat dissipating member. A first accommodating space is disposed in the housing. The first accommodating space accommodates a first mating connector. One side of the housing is disposed at the circuit board. The first heat dissipating member is disposed at the outside of the housing. The first heat dissipating member passes through the housing and extends into the first accommodating space to be connected with the first mating connector. The second heat dissipating member is disposed at the circuit board. The second heat dissipating member passes through the circuit board and the housing and extends into the housing. The heat from the first mating connector is dissipated through the components of the first heat dissipating member. Thus the heat dissipation issue of mating connector having high power chips can be solved.