57results about How to "Simple injection molding process" patented technology

A case comprised of a metal-resin composite body having a connector including a terminal fitting, the connector being integrated with an opening of a wall of a case main body so that the connector sandwiches an edge of the wall. The connector is comprised of a base resin formed by injection molding so as to sandwich the wall. A separately-manufactured connector is welded to the base resin. Forming the base resin on the case main body provides a less complicated configuration of the case compared to a case where a connector is formed directly to the case main body.

The invention provides an injection molding production process capable of reducing the warping possibility of a plastic plate. The injection molding production process comprises following steps: 1. arranging a smooth platform, adding liquid to the surface of the smooth platform, and uniformly distributing the liquid on the surface of the smooth platform; 2. molding the plastic plate through the injection molding process; 3. arranging the demoulded plastic plate on the smooth platform; 4. applying force so as to enable the plastic plate to abrade the surface of the smooth platform distributed with liquid or enable the plastic plate to vibrate the smooth platform, carrying out vacuum adsorption on the plastic plate and the smooth platform through liquid, and retracting the applied force; 5. further cooling and shaping the plastic plate and the smooth platform subjected to vacuum adsorption; and 6. separating the cooled and shaped plastic plate from the smooth platform, and picking up the plastic plate. According to the injection molding process, the process flow is simple, the use range is wide, the plastic plate only needs to be flatly attached to the smooth platform distributed with liquid; due to the utilization of the vacuum adsorption force, the possibility of warping deformation of the plastic plate in the cooling and shaping process can be reduced, and on the basis of not modifying the original matched production device of injection molding production, the yield of the plastic plate is greatly increased, the injection molding production time is shortened, and the injection molding production process has market economic benefits.

An ink cartridge serving as a liquid container, comprises a liquid sensor having a piezoelectric element which detects a consumption state of the liquid contained in the container, and a consumption data memory as a memory means. The consumption data memory is a rewritable memory which stores consumption related data which are related to the detection of the consumption state using the liquid sensor. The consumption related data are, for example, consumption state data as a result of the detection. Even when the ink cartridge is removed, the consumption state data can still be utilized. The consumption related data may be a detection characteristic detected depending on the consumption state of the liquid.

A method for packaging lithium cell by injecting plastic. A face cover of a electric core assembly can be formed by this method. The electric core assembly may be a lithium ion electric core assemblyor a polymer electric core assembly, wherein the polymer electric core assembly was packaged by a metal flake in advance. The method for packaging a lithium cell includes: providing the electric coreassembly with a output terminal into a cavity of a mould and locating therein with a location pin; melting thermoplastic polyamide resin desired to be inject at 170 to 230 degrees Centigrade, to makethe viscosity of the thermoplastic polyamide resin in the range of 340OmPa s to 10,000 mPa s; injecting the said molten thermoplastic polyamide resin into the cavity of the metal mould at the pressureof the injecting plastic in the range of 1 MPa to 10MPa, so as to inject the said thermoplastic polyamide resin into the cavity of the metal mould and coat onto the front face of the electric core assembly to form a plastic face cover.

A transformer provided by the invention comprises a skeleton, a primary winding, a secondary winding and a magnetic core. Wherein the skeleton is integrally formed with the primary coil, the skeletoncomprises a bobbin, and first bosses and second bosses respectively arranged at both ends of the bobbin. The skeleton is provided with through holes penetrating the bobbin, the first boss and the second boss. The primary coil is a flat coil, and the primary coil is integrally embedded in the first boss. The secondary coil is wound around the bobbin and the pins of the secondary coil are arranged on the second boss. The magnetic core includes an insertion portion inserted into the through hole and an outer portion disposed on the outer side of the skeleton. The invention also provides a manufacturing method of a transformer, comprising the following steps: opening a mold, molding the transformer skeleton by injection molding through a mold, placing a primary coil into a mold while molding the skeleton, and integrally molding the primary coil and the skeleton; installing the secondary coil and wind the secondary coil onto the skeleton; installing the core and mounting the core to the skeleton.