Abstract: A junction box includes a cable connecting box including an insulative box and a wire connecting module assembled to the insulative box. The insulative box has a receiving cavity, a bottom wall under the receiving cavity, a plurality of walls surrounding around the receiving cavity, at least a supporting portion located in the walls, a locking slot defined between the supporting portion and one of the walls, and a resilient locking portion received in the locking slot. A cover covers the cable connecting box and comprises a latching portion protruding outwardly from a side of the cover to lock with the resilient locking portion in the locking slot. In this arrangement, the junction box is convenient for users service.

Abstract: A junction box includes a cable connecting box, a cover covering the cable connecting box and an o-ring sealing between the cover and the cable connecting box. The cable connecting box includes an insulative block, a plurality of contacting foils retained in the insulative block, a plurality of diodes connecting with two neighborly contacting foils and four walls surrounding around the insulative block. The cover defines a sealing slot for receiving the o-ring. The sealing slot has a bump at a place of the molding joint of the cover to enlarge a deformation of the o-ring for improving a waterproof effect of the junction box.

Abstract: A screw retaining mechanism includes a hollow stud and a nut is matched with the hollow stud. The hollow stud has a plurality of elastic plates extending from a free end thereof and along a peripheral wall thereof An opening is located between two adjacent elastic plates. An inner wall of the nut has a plurality of tubers protruding in the axial direction to match into the opening. The elastic plate defines a first side face and a second side face opposite to the first side face. Said first side face is used to guide the tubers into the opening and the second side face prevent the tuber fall off from the stud.

Abstract: A flux-switching machine stator comprising two or more C-cores, each C-core having two legs and a back portion joining the legs, and a permanent magnet arranged between legs of adjacent C-cores. Each leg has a main portion and a tip portion further from the back portion characterized in that the tip portion of each leg is angled relative to the main portion of the respective leg.

Abstract: An electrical connector includes an insulative housing, a plurality of terminals retained in insulative housing, and a metal shell covering the insulative housing and including an inner side wall, a rear wall spaced from the inner side wall along a front-to-back direction, and an outer side wall bent forwardly from an outer side of the rear wall. The inner side wall defines an opening, and an inclined extensive plate extending forwardly and outwardly from an edge of the opening. The outer side wall has a retaining hole, and a front plate enclosing a front side of the retaining hole. The extensive plate has a hook bending inwardly and hitching the front plate after the hook passes through the retaining hole for preventing the outer side wall from moving forwardly and overly.

Abstract: An electrical connector 100 includes an insulative housing 1, a plurality of contacts 2, a metal shell 3 and a grounding plate 4. The metal shell 3 includes a front shell 31 having a top wall 311 and an assembling portion 318 extending upwardly from the top wall 311 and having an accommodating slot 3181. The grounding plate 4 includes a base portion 41 inserted into the accommodating slot 3181 and a protruding portion 42 having an elastic mating portion 423 connected with a mating connector. The metal shell 3 further has a rear shell 32 having a vertical covering plate 321 having a resisting portion 3211 extending upwardly and a shielding plate 323 extending forwardly from a top of the covering plate 321. The resisting portion 3211 upwardly abuts against the top wall 311. The grounding plate 4 would be easily assembled to the metal shell 3.

Abstract: An electrical connector includes an insulative housing having a base with two opposite sides and a tongue extending forwardly from the base, a first insulator attached to one side of the base, a second insulator attached to the other side of the base, and a plurality of contacts including a first set of contacts sandwiched between the base and the first insulator, and a second set of contacts sandwiched between the base and the second insulator. The contacts each has a contact portion arranged on the tongue for mating with a corresponding plug.

Abstract: An electrical connector adapted for at least two different mating connectors, comprises an insulative housing and a plurality of contacts retained on the housing. The insulative housing has a base and a tongue forwardly extending from the base. Each contact has a retaining portion retained in the base, a contact portion extending to the tongue from one end of the retaining portion, and at least one soldering portion extending out of the insulative housing from another end of the retaining portion. The contacts comprise two pairs of outer contacts at two sides thereof and at least one middle contact between said two pairs of outer contacts to connect with one contact of one mating connector or two contacts of another mating connector.

Abstract: A junction box (100) includes a cable connecting box, a cover (2) covering the cable connecting box, and a cable (4) connecting with the cable connecting box. The cable (4) connecting box has an insulative block (5), a number of contacting foils (6), and a number of diodes (31) connecting adjacent contacting foils (6). The junction box (100) further includes a plurality of clips (9) mounted in the insulative block (5) and electrically connecting with the contacting foils (6). The clip (9) includes a clamp spring (91) and an elastic plate (92) received in the clamp spring (91) to resist the clamping spring (91). As a result, the clamp spring (91) will not resist the cable connecting box so as to improve an using life of the junction box (100).

Abstract: A PV (photovoltaic) junction box comprises a case, a lid covering the case and a plurality of terminals received within the case. The case has a bottom wall and defines a positive input port and a negative output port, and each terminal having a planar main body retained to the main body. The terminals comprise a first terminal, a second terminal, a third terminal and a fourth terminal, and the main bodies of the terminals are different.

Abstract: A junction box includes a cable connecting box including an insulative box and a wire connecting module assembled to the insulative box. The insulative box has a receiving cavity, a bottom wall under the receiving cavity, a plurality of walls surrounding around the receiving cavity, at least a supporting portion located in the walls, a locking slot defined between the supporting portion and one of the walls, and a resilient locking portion received in the locking slot. A cover covers the cable connecting box and comprises a latching portion protruding outwardly from a side of the cover to lock with the resilient locking portion in the locking slot. In this arrangement, the junction box is convenient for users service.

Abstract: A junction box includes a cable connecting box, a cover covering the cable connecting box and a cable electrically connecting with the cable connecting box. The cable connecting box including an insulative box and a wire connecting module, the insulative box comprising a plurality of walls extending upwardly and a receiving cavity surround by the walls, the walls including a front wall defining a plurality of mounting holes for the cable passing through. The cover includes a plurality of separating walls extending downwardly from a peripheral of the cover to engage with the walls of the insulative box and a pretending wall being parallel to the separating wall and located in front of the front wall. The adding pretending wall provides a longer distance for the junction box to ensure a safe creepage distance for the user to use the junction box.

Abstract: A junction box includes a cable connecting box and a cover covering the cable connecting box. The cable connecting box includes an insulative block, a plurality of contacting foils retained in the insulative block and a plurality of diodes connecting with two neighborly contacting foils. The contacting foils are insert-molded with the insulative block. The insulative block comprises a hook and the cable connecting box comprises a front wall with a depressing slot corresponding to the hook. The hook and the depressing slot engage with each other, when the insulative block is damaged, the user can remove the insulative block away from the junction box by levering the hook.

Abstract: A junction box includes a cable connecting box and a cover covering the cable connecting box. The cable connecting box includes an insulative block, a plurality of contacting foils retained in the insultative block and a plurality of diodes. Each diode connects with two neighborly contacting foils. The contacting foils are insert-molded with the insulative block. Based on thermal radiation properties of the plastic material is superior to that of the metal material, as the contacting foils transfer the heat to the insulative block, the insulative block would deliver the heat to the cable connecting box, then the heat would be delivered to the cover. Such that, the heat dissipates outside quickly from the junction box.

Abstract: A junction box includes a cable connecting box, a cover covering the cable connecting box and an o-ring sealing between the cover and the cable connecting box. The cable connecting box includes an insulative block, a plurality of contacting foils retained in the insultative block, a plurality of diodes connecting with two neighborly contacting foils and four walls surrounding around the insulative block. The cover defines a sealing slot for receiving the o-ring. The sealing slot has a bump at a place of the molding joint of the cover to enlarge a deformation of the o-ring for improving a waterproof effect of the junction box.

Abstract: An electrical connector (100) includes an insulative housing (1) defining a main body (10) and a tongue plate (11) extending from the main body, and a number of terminals (2) retained in the insulative housing and being arranged in two rows. Each terminal has a contacting portion (201) extending into the tongue plate, a retaining portion (202) retained in the main body, a bending portion (22) extending from the retaining portion, and a tail portion (23) extending from the bending portion and comprising a mounting portion (231) for being mounted on a PCB. The bending portions (22) in each one of the two rows bending oppositely to the other row from the respective retaining portions. A distance between the two rows of the mounting portions (231) is greater than a distance between the two rows of the contacting portions (201). A distance between each two adjacent mounting portions (231) in each row is greater than a distance between the two respective contacting portions (201).

Abstract: A synchronous permanent magnet machine includes a permanent magnet arrangement for producing a magnetic field having a flux density distribution that is approximately sinusoidal. The permanent magnet arrangement includes a permanent magnet pole with both low and high energy-product magnets. The permanent magnet pole includes a low energy-product magnet and a high energy-product magnet which have different directions of magnetization, or a disposition of low/high energy-product magnets within the permanent magnet pole is asymmetric with respect to the central region of the permanent magnet pole.

Abstract: An electrical connector (100) includes a first housing (1) and a second housing (3) retained to the first housing (1). The first housing (1) has a mating surface (11) and a mounting surface (12) at two sides thereof. The second housing (3) has a joint surface (31) to joint with the mounting surface (12). The first housing (1) defines a locking slot (131) recessed from the mounting surface (12). The second housing (3) is formed with a pair of spring arms (34) extending out of the joint surface (31) to resist opposed two inner walls of the locking slot (131).