2K Patent Partnerschaft mbB

An on-board charger (100) is configured in an electric vehicle (200) equipped with an on-board battery (200A). The on-board charger (100) includes an AC-to-DC conversion circuit (1), an energy storage capacitor (Cbusl), a bidirectional conversion circuit (2), an AC conversion circuit (3), and a controller (4). The AC-to-DC conversion circuit (1) converts a first AC power source (Pac1) into a DC power source (Pdc). The bidirectional conversion circuit (2) bidirectionally converts the DC power source (Pdc) and an energy storage power source (Pb), and charges or discharges the on-board battery (200A) according to the energy storage power source (Pb). The AC conversion circuit (3) selectively provides a second AC power source (Pac2) according to either the first AC power source (Pac1) or the DC power source (Pdc), and the controller (4) continuously controls the AC conversion circuit (3) to provide the second AC power source (Pac2) to a load (400) according to residual power of the on-board charger (100) during a hold-up time after a power interruption of the first AC power source (Pac1).

This disclosure is directed to a heat dissipation module, an assembling method thereof and an electronic device having the same. The heat dissipation module is used for dissipating heat from a heat source (110) on a circuit board (100), the heat dissipation module has a fixing seat (200), a combination frame (300) and a heat dissipator (400). The fixing seat (200) is arranged on the circuit board (100) to locate the heat source (110) at or adjacent to a center of the fixing seat (200). The fixing seat (200) has a plurality of first latches (210). The combination frame (300) has a limiting structure (310) and a plurality of second latches (320). The second latches (320) are respectively snapped on the first latches (210) to fix the combination frame (300) on the fixing seat (200). The limiting structure (310) limits the heat dissipator (400) so that at least a portion of the heat dissipator (400) is limited in the combination frame (300) to attach the heat dissipator (400) to the heat source (110) along a vertical direction. Accordingly, the heat dissipator (400) may be quickly, stably and accurately installed on the circuit board (100) and sealed with the heat source (110). Moreover, the heat dissipator (400) is avoided from deformation caused by overload or uneven load during an installation process.

A waterproof connector and a waterproof cap thereof are disclosed. The waterproof connector includes: a connector body (1) including a metal case (11) having an inner circumferential surface (111) and an outer circumferential surface (112) with a recessed slot (12), the metal case has a buckling edge (121); and the waterproof cap (3) is sheathed with the metal case and includes an inner annular wall (31) having a waterproof flange (311) and an outer annular wall (33) having a buckling flange (3322), the waterproof flange and the buckling flange are disposed with a manner of facing each other, the buckling flange (3322) correspondingly penetrates into the recessed slot (12) and is reversely buckled at the buckling edge (121), the waterproof flange (311) abuts against the inner circumferential surface (111), and the waterproof flange and the buckling flange relatively abut and clamp the metal case (11).

A wire stripper (1) with a replaceable spring includes a stripper handle pair (10), a wire stripping structure (20), a spring set (30), and a pressing set (40). The stripper handle pair (10) includes a first handle (11), a second handle (12), and a pivot (13). The first handle (11) and the second handle (12) are pivotally connected via the pivot (13). The wire stripping structure (20) is correspondingly arranged on the stripper handle pair (10). The spring set (30) is removably mounted on the first handle (11) and the second handle (12). The spring set (30) includes a first pin (31) located on the first handle (11), a second pin (32) located on the second handle (12), and a first spring (33) straddling between the first pin (31) and the second pin (32). The pressing set (40) is disposed on the stripper handle pair (10). The spring set (30) is pressed by the pressing set (40) to be undetachable from the stripper handle pair (10). Accordingly, the spring set may be replaced as needed.

An in-vehicle infant-and-toddler monitoring method includes: (a) shooting a child seat in a rear seat in a vehicle by a rear-seat infant-and-toddler monitoring apparatus (1) to capture a video-and-audio signal, wherein the rear-seat infant-and-toddler monitoring apparatus (1) is directed toward the child seat; (b) inputting the video-and-audio signal into an artificial intelligence engine (121), to analyze a video of the video-and-audio signal to detect a facial expression of an infant or a toddler, and to analyze an audio emotion of the infant or the toddler based on an audio feature, to generate a notification event corresponding to a current emotion of the infant or the toddler; (c) sending the notification event by the rear-seat infant-and-toddler monitoring apparatus (1) to a front-seat display apparatus (2); (d) streaming and retrieving the video-and-audio signal by the front-seat display apparatus (2) from a video-and-audio processing module (12) based on the notification event to display the video-and-audio signal; and (e) notifying the rear-seat infant-and-toddler monitoring apparatus (1) by the front-seat display apparatus (2) based on the notification event to request a streaming video-and-audio packet to play the video-and-audio signal of the infant or the toddler by the front-seat display apparatus (2) in a front seat in the vehicle.

An electrical connector includes a connector body (21), a movable annular collar (22), and an elastic locking member (23). The connector body (21) includes a plug (211) and a peripheral wall (212) enclosing the plug (211). A plurality of hollow openings (213) are defined on the peripheral wall (212). The movable annular collar (22) is movably sleeved around the peripheral wall (212). The movable annular collar (22) includes abutting blocks (221), pressing blocks (222), and grooves (233). The elastic locking member (23) is positioned between the peripheral wall (212) and the movable annular collar (22). The elastic locking member (23) includes a ring (231) arranged around the peripheral wall (212), a plurality of elastic locking arms (232), and a plurality of push-out ribs (233). The end of each elastic locking arm (232) is positioned in a hollow opening (213) and is pressed by the pressing block (222) or positioned opposite the groove (223). The abutting blocks (221) abut against the lower portions of the push-out ribs (233).

A magnetic waterproof connection device having a first connector (1) and a second connector (2) is provided. The first connector (1) has a first connecting body (10), a first terminal seat (12), and a first plug-in portion (11) having a plugging end (110). The first terminal seat (12) is arranged in the first plug-in portion (11) corresponding to the plugging end (110). A first terminal (120) and a first magnetic member (121) are arranged in the first terminal seat (12). The second connector (2) has a second connecting body (2), a second terminal seat (22), and a second plug-in portion (21) corresponding to the plugging end (110). The second terminal seat (22) is arranged in the second plug-in portion (21). A second terminal (220) and a second magnetic member (221) are arranged in the second terminal seat (22). An annular sealing structure (23) is arranged outside the second plug-in portion (21). An internal wall of the plugging end (110) is tapered. The annular sealing structure (23) has a first sealing ring (231) and a second sealing ring (232) pressing on the internal wall of the plugging end (110).

A male connector (100) is used to plug in a female connector (200) defining a plugging hole (210) and a positioning slot (220) and includes an outer shell (111), a plug-in portion (112) and a plurality of conductors (120) inserted into the plug-in portion (112). The plug-in portion (112) has a first outer periphery (1121), a second outer periphery (1122) smaller than the first outer periphery (1121), a positioning structure (1123) arranged on the first outer periphery (1121), and a ring flange (1124) arranged on the second outer periphery (1122). The first outer periphery (1121) is located between the outer shell (111) and the second outer periphery (1122). When the male connector (100) plugs in the female connector (200), the plug-in portion (112) and at least part of the conductors (120) are accommodated in the plugging hole (210), the positioning structure (1123) is fixed to the positioning slot (220), the ring flange (1124) elastically bends toward the outer shell (111) and elastically abuts against an inner wall of the plugging hole (210) to improve waterproof effect.

The present invention provides a multi-angle clamping arm, comprising a first joint (10), a first extension rod (20), a second joint (30), a second extension rod (40), and a universal joint (50), wherein the first and second extension rods (20), (40) are connected to the first and second joints (10), (30), respectively. The first and second extension rods (20), (40) are each fixed at relative rotational angles to the first and second joints (10), (30) via first and second locking components (61), (63) that are not located at the pivot points. Accordingly, the first and second extension rods (20), (40) can be adjusted to a desired angle based on user's needs, and are locked by the first and second locking components (61), (63), which are not at the pivot points. This design allows the clamping arm to withstand larger rotational torques, preventing the first and second extension rods (20), (40) from drooping due to loosening, thus avoiding operational issues and preventing damage to the equipment.

A transformer module includes a primary side assembly, a secondary side assembly and a magnetic element. The primary side assembly has a first cover body, a first pillar body and a first coil. The first pillar body is connected to the first cover body. The first coil is wound on the first pillar body. The secondary side assembly has a second cover body, a second pillar body and a second coil. The second pillar body is connected to the second cover body. The second coil is wound on the second pillar body. The magnetic element is disposed between the primary side assembly and the secondary side assembly. The first pillar body is fixedly connected to the second pillar body, and the size of the first pillar body is larger than the size of the second pillar body.