12results about How to "Make electrical connections" patented technology

The utility model relates to a technical field of automobile component testing, specifically relates to a high and low temperature testing device for testing automobile headlamp, including box and mounting mechanism, and mounting mechanism includes frame, a plurality of heavy load slide rails, a plurality of carriers, a plurality of first probe module, a plurality of second probe module and a plurality of fixed assemblies, and the frame is arranged in the inside of box, a plurality of heavy load slide rails are fixedly connected with the clamping, and the both ends of a plurality of carriers are slidably connected with corresponding heavy load slide rails respectively, a plurality of first probe module are fixedly connected with the frame, a plurality of second probe module are fixedly connected with corresponding carriers respectively and are located in the side of corresponding first probe module, and one end of heavy load slide rail is provided with a lock catch, and a plurality of fixed assemblies are arranged in the side of corresponding carrier respectively, through the setting of above -mentioned structure, the problem that the temperature range is not enough wide, the temperature change rate is not high and the detection efficiency is relatively low of the existing high and low temperature test box is solved.

This invention discloses a transformer testing device, whose switching mechanism includes: three busbar assemblies for electrical connection to the three-phase bushing terminals of the transformer; two sliding contact assemblies, each comprising multiple slidingly engaged slider contacts spaced apart, with each busbar assembly connected and disconnected via the sliding contact assemblies; and a pushing device for driving the slider contacts of the sliding contact assemblies to move, thereby electrically connecting or disconnecting the slider contacts. Operators can quickly connect and disconnect the transformer terminals by controlling the pushing device. The device is simple in structure and easy to operate. Furthermore, when the switching mechanism is in the closed state, the contact is achieved through the contact of the slider contacts. Compared to a disconnector, the contact between the slider contacts is surface contact, which is more reliable, has a larger contact area, and eliminates the shearing force experienced during disconnection and opening of a disconnector, thus solving the problem of contact surface wear.

The utility model relates to the field of automobile seat, concretely relates to a vehicle seat electrical plug structure and seat, including plug unit and socket unit, plug unit includes the sheath for installing in the metal pole inside and the first connecting terminal in the sheath, socket unit includes the seat body and installs the second connecting terminal on the seat body, and the first elastic sheet for clamping is installed to the metal pole outside wall on the seat body, through the application scheme, realize user can easily pull out the metal pole of headrest from the seat thoroughly, and the electrical plug structure is automatically disconnected after pulling out, when the metal pole is inserted into the seat again, the electrical plug structure is automatically connected, solved the problem that the metal pole on the headrest cannot pull out thoroughly from the top of seat at present.

The QFN frame structure of the utility model discloses includes pad, chip operation area and pin array. The edge of pad is periodic concave-convex structure. Chip operation area is located in the central region of pad, and the shape of chip operation area is square, and the length of the side length of chip operation area is greater than 3.0mm. Pin array is set up in the outer edge of pad. The QFN frame structure of the application can solve the miniaturization demand problem, through the periodic concave-convex structure of the edge of pad, not only can reduce stress concentration, alleviate delamination risk, simultaneously, under the premise of not increasing the size of package, increase the operation space of chip, this means that in the same space, can handle larger chip, greatly improve the operation efficiency, save time and resources.

The utility model discloses a stackable power supply module's magnetic shielding casing relates to power supply module technical field, including casing main part and positioning hole, casing main part includes high magnetic conductive metal layer, insulation buffer layer and shielding effectiveness enhancement layer, the outer surface of insulation buffer layer is provided with the shielding effectiveness enhancement layer, and the positioning hole is provided with the shielding effectiveness enhancement layer. A positioning column is arranged at the top of the shell body, and the positioning hole is formed in the bottom of the shell body. According to the magnetic shielding shell of the stackable power supply module, the top and the bottom of the shell main body adopt complementary concave-convex groove design, the top is provided with a convex positioning column and a groove type electrical connection interface, and the bottom is correspondingly provided with a positioning hole matched with the positioning column and a convex type electrical connection plug. The electrical connection plug of the lower power module shell body can be accurately inserted into the electrical connection interface of the upper shell body, electrical connection between the power modules is achieved, and no extra connecting wire is needed.

The utility model provides a charging pile. Relates to the technical field of charging equipment. The charging pile comprises a charging gun, a first shell, a second shell, a first circuit board located in the first shell and a second circuit board located in the second shell. A part of the plurality of power devices are positioned in the first shell and are fixed on the first circuit board, and the other part of the plurality of power devices are positioned in the second shell and are fixed on the second circuit board; the side, away from the first shell, of the second shell is used for being hung on the bearing piece. The plurality of power devices are electrically connected to form a power conversion circuit, and the charging gun is electrically connected with the output end of the power conversion circuit; the first shell is connected with the second shell, and an air duct is arranged between the first shell and the second shell; the air conditioner further comprises a fan and an air opening, the arrangement direction of the fan and the air opening is perpendicular to the arrangement direction of the first shell and the second shell, the air channel is located between the fan and the air opening, and the fan faces the air channel. The charging pile can meet the heat dissipation requirement of the charging pile with high-density layout.

This utility model discloses a solder mask opening structure for surface mount components, relating to the field of printed circuit board design technology. The solder mask opening structure for surface mount components includes a printed circuit board, which comprises a solder mask layer and a metal layer. A solder mask opening is provided on the solder mask layer. The metal layer is connected to the solder mask layer, and a first pad and a second pad are provided on the side of the metal layer facing the solder mask layer. The technical solution of this utility model fully considers the characteristics of small pad spacing and tiny solder shoulder size of 01005 surface mount components. By eliminating the solder mask bridge between the first and second pads, the first and second pads are fully exposed within the solder mask opening. Furthermore, by controlling the reasonable gap between the outer walls of the first and second pads and the inner wall of the solder mask opening, the solder paste printing and soldering process is optimized, fundamentally solving common problems such as solder balls, tombstoning, and cold solder joints in the SMT soldering process of 01005 surface mount components.

The utility model discloses a waterproof connecting plug structure relates to connecting plug technical field, the utility model discloses a male plug subassembly, female plug subassembly and butt joint subassembly, male plug subassembly includes first connecting terminal, and first connecting terminal one end is installed with first locating ring, female plug subassembly includes second connecting terminal, and second connecting terminal is installed with second locating ring, and second connecting terminal surface is equipped with sealing element, butt joint subassembly includes outer thread cover and screw cap, and outer thread cover is movably installed on first connecting terminal surface, and screw cap movably installs on second connecting terminal surface, the utility model discloses the thread connection of outer spiral cover and screw cap can make the butt joint and the separation process of connecting plug structure relatively simple, compared with some waterproof performance good but the existing plug connecting structure of installation butt joint complicated, and the device can improve the work efficiency of installation and dismounting under the performance of guaranteeing the performance of strict waterproof.

This application provides a covered power distribution automation feeder terminal, including a housing, a bus circuit board, a mounting bracket, an input / output circuit board, and a power supply assembly. The housing includes a base and a cover, which together form a first accommodating cavity for accommodating functional modules. Multiple electrical connection sockets are provided on the inner wall of the base to enable electrical connection between external devices and the terminal. One side of the bus circuit board is a mating surface, and the other side is a component surface. The mating surface has electrical connection plugs that match the electrical connection sockets of the base, and the component surface integrates electronic components. The mounting bracket spans above the bus circuit board and includes a base plate and a vertical plate. The vertical plate is vertically fixed to the inner wall of the base, and the base plate extends vertically to the vertical plate, forming a stable support structure. The input / output circuit board is fixed to the mounting bracket and together with the mounting bracket, forms a second accommodating cavity. The power supply assembly is installed in the second accommodating cavity and fixed to the inner sidewall of the base plate.

The utility model discloses a detachable lithium battery module. The detachable lithium battery module comprises a box body, a module, a magnetic connection bar, a battery management system circuit board and an upper cover, the module is positioned in the box body, the module comprises a plurality of battery cells, the plurality of battery cells are linearly arranged, and positive electrodes and negative electrodes of the adjacent battery cells are sequentially alternated along the arrangement direction; a plurality of magnetic connection rows, one magnetic connection row is arranged between each group of adjacent battery cells, and the magnetic connection rows are bridged between the different-name electrodes of the adjacent battery cells; an elastic buffer is arranged on the surface of the side, facing the module, of the battery management system circuit board and abuts against the magnetic attraction connecting row. And the upper cover is detachably connected with the box body. According to the invention, electrical connection between the battery cells is realized through the magnetic connection bar, and the reliability and maintainability of connection are improved. And the elastic buffer can effectively relieve the vibration and impact of the battery cell in the working process. And the box body and the upper cover are detachable, so that the maintenance cost is reduced.

The utility model discloses a novel connector capable of being quickly plugged, which belongs to the technical field of connectors and comprises a connector body, and the connector body comprises a plug shell and a socket shell. The fixing assembly comprises a fixing disc, a sliding rod, a clamping block, a reset spring and a fixing barrel, the fixing disc is provided with a sliding groove, the sliding rod is arranged in the sliding groove in a sliding mode, the clamping block is arranged at one end of the sliding rod, and the fixing barrel is provided with a first clamping hole; according to the utility model, through the arrangement of the fixing assembly, when plugging is needed, a user translates the plug shell and the socket shell towards the direction close to each other, and the two clamping blocks are close to each other; and when the clamping block moves to the first clamping hole, the clamping block is completely clamped in the first clamping hole under the resilience force of the reset spring, so that the plug shell and the socket shell are fixed, the pins and the pin holes are electrically connected, and the operation is simple and rapid.