32results about How to "Reduce assembly volume" patented technology

A portable, multi-mode, multi-user cooler for storing and selectively dispensing beverages. A plastic, cylindrical container forms a hopper that mounts a removable top. Multiple, external recessed channels are formed in the container at radially spaced-apart locations. Deployable legs formed of multiple segments are housed within the channels when retracted. A plurality of user-actuable dispensing spigots that are radially spaced-apart around the periphery of the body are located between adjacent legs. Legs are deployed by unfolding them once removed from the storage channels. Selectively deployable, coaxial sleeves fitted to leg elements can be slidably deployed to lock the knees in axial alignment to secure and brace the legs. An internal divider partitions the container volume into separate compartments aligned with separate radially spaced-apart spigots.

A portable, multi-mode, multi-user cooler for storing and selectively dispensing beverages. A plastic, cylindrical container forms a hopper that mounts a removable top. Multiple, external recessed channels are formed in the container at radially spaced-apart locations. Deployable legs formed of multiple segments are housed within the channels when retracted. A plurality of user-actuable dispensing spigots that are radially spaced-apart around the periphery of the body are located between adjacent legs. Legs are deployed by unfolding them once removed from the storage channels. Selectively deployable, coaxial sleeves fitted to leg elements can be slidably deployed to lock the knees in axial alignment to secure and brace the legs. An internal divider partitions the container volume into separate compartments aligned with separate radially spaced-apart spigots.

A miniaturized voltage-transforming device includes a first circuit board and a second circuit board parallel to and separated from each other by a predetermined distance so that there is no physical connection therebetween, and a transformer having a plurality of primary-side pins and a plurality of secondary-side pins, wherein the transformer is located beside the first circuit board and the second circuit board, and has its primary-side pins and secondary-side pins directly or indirectly connected to the first circuit board and the second circuit board physically, so that the transformer is electrically connected to the first circuit board and the second circuit board via the primary-side pins and the secondary-side pins.

A slim speaker includes a casing having an enlarged front opening and a rear end with a magnetic circuit mounted thereto; a voice coil located over a central area of the magnetic circuit; a diaphragm located between the enlarged front opening of the casing and the voice coil; and a damper located behind the diaphragm to space from the latter. The diaphragm has at least one V-shaped bent section provided at a middle portion for bearing on a corresponding position on the damper. With these arrangements, the diaphragm not only has an effectively reduced overall height to largely reduce the assembled volume of the slim speaker and allow the slim speaker to be easily mounted in the limited inner space of an electric product, but also stabilizes the vibration of the voice coil to enable good resonance of sound.

The present invention provides a self-draining oil buoyancy regulating device for underwater robots, wherein the accumulator, lower hatch cover, hatch trunk, upper hatch cover and bladder are connected; the water-proof connector is fixed on the upper hatch cover; the depth-pressure sensor is settled on the lower hatch cover; the upper valve block, hydraulic-operated check valve and lower valve block are connected; the lower valve block is fixed on the lower hatch cover; the pump outlet pressure sensor and the accumulator pressure sensor are on the lower valve block; the directional valve and the upper valve block are connected; the hydraulic pump motor assembly and the relief valve are both connected with the lower valve block; the depth-pressure sensor, pump outlet pressure sensor and accumulator pressure sensor are all connected with the control panel; the control panel is connected with the external power supply and the host computer.

The invention belongs to the technical field of preparation of printed circuit boards and discloses a preparation method of a PCB with a step groove. The method comprises the following steps of (A) providing a bottom substrate and fabricating a circuit pattern on the bottom substrate; (B) providing a to-be-laminated substrate, embedding a glue stop block into one side, toward the bottom substrate,of the to-be-laminated substrate, and laminating and molding the to-be-laminated substrate and the bottom substrate which are superimposed from top to bottom into a multi-layer board; (C) forming a groove corresponding to the glue stop block in the other side, opposite to the bottom substrate, of the multi-layer board, taking out the glue stop block from the groove and obtaining a first groove with a nonmetallic side wall; and (D) forming a second groove of which the cross section area is smaller than that of the first groove in the bottom of the first groove to obtain the PCB with the step groove. According to the preparation method, through the arrangement of the glue stop block before laminating and molding, the first groove can be accurately formed in a circuit pattern region betweenthe to-be-laminated substrate and the bottom substrate; and through the arrangement of the second groove, the space of the step groove is more fully utilized.

The invention provides a circuit breaker. The movable end of the vacuum interrupter of the pole is fixedly electrically connected to a movable conductive rod, and a lower outlet seat is provided in the accommodating cavity, and the movable conductive rod forms a sliding electrical connection with the lower outlet seat. When the movable end of the vacuum interrupter moves, it drives the movable conductive rod to move at the same time, and the movable conductive rod forms a sliding electrical connection with the lower outlet seat to replace the direct connection between the movable end of the vacuum interrupter and the soft conductor in the prior art. The lead-out circuit can be realized by directly connecting the hard copper bar with the lower outlet seat rigidly, with stable structure, easy assembly and low cost. The pole is set on the channel steel, and the channel steel is driven to rotate by the channel steel rotation drive mechanism. The rotation of the channel steel drives the pole to turn over, so that the pole is between the working state of connecting the external power supply end and the power consumption end and the detached storage state switch to realize the function of the isolating switch, save the isolating switch and related components, reduce the assembly volume, and simplify the assembly.

The invention relates to the technical field of circuit board production, and discloses a PCB having multi-step ladder grooves. One side of the PCB is provided with a first groove, and the groove bottom and the groove wall of the first groove are metallized; a second groove is formed in the groove bottom of the first groove, and the groove bottom and the groove wall of the second groove are metallized; a through slot is formed in the groove bottom of the second groove, and the groove wall of the through slot is not metallized. The PCB with the multi-step ladder grooves according to the presentinvention can realize the mounting of the special-shaped components or the selective mounting of the components, fully utilize the space of the ladder grooves, and reduce the installation volume of the PCB.

The invention discloses a positioning device based on mechanical counting of a motor, comprising a shell. The shell is internally provided with a driving gear, a clockwise gear set and an anticlockwise gear set, wherein the clockwise gear set and the anticlockwise gear set are fit with the driving gear; the clockwise gear set comprises a pair of differential gears which are arranged at the same axis and have different tooth numbers; the anticlockwise gear set comprises a pair of differential gears which are coaxially arranged and have different tooth numbers; the shell is also internally provided with a clockwise stroke regulating mechanism and an anticlockwise stroke regulating mechanism which are fit with the clockwise gear set and the anticlockwise gear set respectively; and the clockwise gear set and the anticlockwise gear set are arranged at the same axis. By using the positioning device based on the mechanical counting of the motor, the inner structure of the device can be effectively regulated, so that the inner structure is more compact, simultaneously, and the whole volume of the positioning device can be effectively reduced. The positioning device disclosed by the invention can be used in the positioning field of curtain machines.

The invention relates to the technical field of circuit board production, and discloses a PCB manufacturing method. The method comprises the steps of: S1, providing an upper substrate with a first through groove opened, a middle substrate with a second through groove opened and a lower substrate, and sequentially stacking the upper substrate, the middle substrate and the lower substrate so that the second through groove of the middle substrate is located below the first through groove of the upper substrate; S2, filling the glue blocking material in the first through groove and the second through groove, and pressing the upper substrate, the middle substrate and the lower substrate to form a multilayer board; S3, taking out the glue blocking material, and forming a step groove by the firstthrough groove and the second through groove; S4, carrying out copper deposition and electroplating on the groove wall of the step groove, and metalizing the groove wall of the step groove; and S5, opening a third through groove on the bottom of the groove of the step groove. According to the PCB manufacturing method of the invention, the mounting of the special-shaped component and different sizes of component are realized by forming a step groove with multiple layers of steps on the PCB, thereby reducing the occupied space of the PCB.

The invention relates to the technical field of circuit board production, and discloses a manufacturing method of a PCB, comprising the following steps: S1, providing a first substrate having a firstthrough groove, a second substrate, a third substrate having a second through groove and a fourth substrate, and forming a circuit pattern on the surface of the fourth substrate; S2, sequentially laminating the first substrate, the second substrate, the third substrate and the fourth substrate, and forming a multilayer board by compression; S3, subjecting the multilayer board to copper immersion and electroplating to metallize the groove wall and the groove bottom of a first groove; S4, milling the groove bottom of the first groove at the top of the second through groove to form a second groove; and S5, forming a third through groove in the groove bottom of the second groove. The manufacturing method of the PCB according to the present invention realizes the mounting of the special-shapedcomponent and a plurality of components of different sizes, reduces the occupied space of the PCB, and forms a circuit pattern at the groove bottom of the stepped groove, which is beneficial to further miniaturization of the PCB.

Some embodiments of the present disclosure provide the design and manufacture of an ultra-small chip assembly. The ultra-small chip assembly comprises a die, a plate-like back electrode disposed on the back-side of the die, and one or more plate-like positive electrodes disposed on the front-side of the die. The ultra-small chip assembly is configured such that one end of the plate-like back electrode extends beyond a first side of the die, and each of the one or more plate-like positive electrodes includes an end which extends beyond a second side of the die. By attaching both the plate-like back electrode and the plate-like positive electrodes on the surfaces of the die, and directly using the exposed ends of the plate-like electrodes as the lead-out electrodes for the chip assembly, the electrical connections outside of the die only occupy a very small volume.

The present invention relates to a kind of back light module including one light guiding board and at least one cold cathode fluorescent lamp. The light guiding board includes at least one incident plane, and the cold cathode fluorescent lamp is set opposite to the incident plane of the light guiding board. The cold cathode fluorescent lamp is one closed glass tube with electrodes inserted to its two ends, and glass tube has V-grooves carved on its two ends.