Patent application number | Description | Published |
20090060750 | Fluid transportation device - A fluid transportation device includes a valve seat, a valve cap, a valve membrane, multiple buffer chambers, a vibration film and an actuator. The valve membrane is arranged between the valve seat and the valve cap, and includes several hollow-types valve switches, which includes at least a first valve switch and a second valve switch. The multiple buffer chambers include a first buffer chamber between the valve membrane and the valve cap and a second buffer chamber between the valve membrane and the valve seat. The vibration film is separated from the valve cap when the fluid transportation device is in a non-actuation status, thereby defining a pressure cavity. The actuator is connected to the vibration film. When the actuator is driven to be subject to deformation, the vibration film connected to the actuator is transmitted to render a volume change of the pressure cavity and result in a pressure difference for moving the fluid. | 03-05-2009 |
20090159830 | Fluid transportation device - A fluid transportation device includes a valve seat, a valve cap, a valve membrane, multiple buffer chambers, and an actuating module. The valve seat has an inlet channel and an outlet channel. The valve cap is disposed on the valve seat. The valve membrane is arranged between the valve seat and the valve cap. The multiple buffer chambers include a first buffer chamber between the valve membrane and the valve cap and a second buffer chamber between the valve membrane and the valve seat. Each of the first buffer chamber and the second buffer chamber has a flow-guiding structure extended from an outer edge to a center thereof. The actuating module has a periphery fixed on the valve cap. A pressure cavity is defined between the actuating module and the valve cap. Another flow-guiding structure is formed at an inner edge of the pressure cavity. | 06-25-2009 |
20090217994 | Multi-channel fluid conveying apparatus - A multi-channel fluid conveying apparatus, for delivering a fluid, includes a valve seat, a valve cover, a valve membrane, a plurality of temporary-deposit chambers, and an actuating device. The valve seat includes at least one inlet channel and at least one outlet channel. The valve cover is arranged on the valve seat. The valve membrane is interposed between the valve seat and the valve cover and includes a plurality of valve structures made of the same material with the same thickness, wherein at least one of the valve structures has a rigidity different from those of other valve structures. The plurality of temporary-deposit chambers is interposed between the valve membrane and the valve cover and between the valve membrane and the valve seat. The actuating device is, having a periphery, fixed to the valve cover. | 09-03-2009 |
20090242060 | Fluid transportation device having multiple double-chamber actuating structrures - A fluid transportation device includes a flow-gathering module and multiple double-chamber actuating structures. The flow-gathering module includes two surfaces opposed to each other, multiple first flow paths and multiple second flow paths running through the two surfaces, an inlet channel arranged between the two surfaces and communicated with the multiple first flow paths, and an outlet channel arranged between the two surfaces and communicated with the multiple second flow paths. The multiple double-chamber actuating structures are arranged on the flow-gathering module side by side. Each double-chamber actuating structure includes a first chamber and a second chamber symmetrically arranged on the two surface of the flow-gathering module. Each of the first chamber and the second chamber includes a valve cap arranged over the flow-gathering module, a valve membrane arranged between the flow-gathering module and the valve cap, and an actuating member having a periphery fixed on the valve cap. | 10-01-2009 |
20090242061 | Dual-cavity fluid conveying apparatus - A dual-cavity fluid conveying apparatus includes a flow-converging device, a first cavity body, and a second cavity body. The flow-converging device includes two sides corresponding to each other; a first channel and a second channel both passing through the two sides; and an inlet passage and an outlet passage both arranged between the two sides and communicated with the first channel and the second channel, respectively. The first cavity body and the second cavity body are symmetrically disposed at the two sides of the flow-converging device, wherein the first cavity body and the second cavity body each includes a valve cover disposed on one side of the flow-converging device, a valve membrane interposed between the one side of the flow-converging device and the valve cover, and an actuating device disposed circumferentially on the valve cover so as to define, together with the valve cover, a pressure chamber. | 10-01-2009 |
20100301701 | VOLTAGE CONVERTER AND DRIVING SYSTEM USING SUCH VOLTAGE CONVERTER - A voltage converter is provided for receiving a low input DC voltage and driving a piezoelectric actuator of a fluid transportation device. The voltage converter includes plural capacitors, a resistor and a boost chip. The boost chip is connected with the plural capacitors and the resistor, has a switch element and a polar switching circuit, and receives the low input DC voltage. The low input DC voltage is increased and multiplied to a high DC voltage by a switching operation of the switch element. The high DC voltage is converted into an output AC voltage by the polar switching circuit so as to drive the piezoelectric actuator. An operating frequency of the boost chip is controlled by the plural capacitors and the resistor. | 12-02-2010 |
20120081420 | PRINTING SYSTEM - The present invention relates to a printing system, which comprises: a data receiving and processing unit connected with the electronic device, for receiving a printing signal from the electronic device and processing the printing signal into a data signal; and an ink-jet head module including a control chip and an ink-jet heating chip. The control chip includes a wireless transmission module and a control circuit, wherein the wireless transmission module includes an antenna, a front-end processing unit, an instruction unit, a clock transmission unit, and a modulation and demodulation unit. Besides, the control circuit includes a control processing unit, a coding and decoding processing unit, and a memory device, to receive the data signal processed by the wireless transmission module and transform the processed data signal into a control signal. In addition, the ink-jet heating chip is connected with the control circuit for executing the ink-jet printing. | 04-05-2012 |
20120081471 | INK-JET CHIP - The present invention relates to an ink-jet chip, adaptive for a printing device, at least comprising: a plurality of ink-jet heating elements and an ink-jet signal generating circuit. The ink-jet signal generating circuit at least includes: a counter electrically connected with the printing device, for receiving a counter control signal and a pulse signal, and generating a plurality of counter signals corresponding to the counter control signal and the pulse signal; and a decoder electrically connected with the counter, for receiving and decoding the plurality of counter signals, for generating a plurality of address signals, and selecting a corresponding ink-jet heating element basing on the plurality of address signals. | 04-05-2012 |
20120242726 | INK-JET HEAD - The present invention related to an ink-jet head, adaptive for an ink cartridge including at least one ink tank, the ink jet head includes: a nozzle board, having a plurality of nozzles; and an ink-jet chip, being used for controlling the ink-jetting and having a total area region consisting of a length and a width, wherein the total area region includes: a non-wiring region, where at least one ink flow channel being installed therein; and a wiring region, where an internal circuit being installed therein; wherein the internal circuit includes a plurality of ink-jet unit sets, and every ink-jet units of the plurality of ink-jet unit sets include a heater installed correspondingly to the nozzle; wherein the area of the wiring region of the ink-jet chip is less than 77% of the area of the total area region of the ink-jet chip. | 09-27-2012 |
20120242746 | INKJET PRINTHEAD - The present invention related to an inkjet printhead, adaptive for an ink cartridge including three ink-supplying tank, the inkjet printhead includes: a nozzle plate having a plurality of nozzles; and an inkjet chip for controlling ink jetting and having a total area region having a length and a width, the total area region including: a non-wiring region for installing three single ink-supplying flow channels; and a wiring region for installing an internal circuit including a plurality inkjet unit assembly, each inkjet unit of the inkjet unit assembly including a heater installed correspondingly to the nozzle; wherein an area of the wiring region of the inkjet chip is or less than 77% of a total area of the inkjet chip. | 09-27-2012 |
20120242752 | INKJET PRINTHEAD - The present invention related to an inkjet printhead, adaptive for an ink cartridge including one ink-supplying tank, the inkjet printhead includes: a nozzle plate having a plurality of nozzles; and an inkjet chip for controlling ink jetting and having a total area region having a length and a width, the total area region including: a non-wiring region for installing one single ink-supplying flow channels; and a wiring region for installing an internal circuit including a plurality inkjet unit assembly, each inkjet unit of the inkjet unit assembly including a heater installed correspondingly to the nozzle; wherein an area of the wiring region of the inkjet chip is or less than 82% of a total area of the inkjet chip. | 09-27-2012 |
20120242763 | INK-JET HEAD - The present invention related to an ink-jet head, adaptive for an ink cartridge including two ink tanks, the ink-jet head includes: a nozzle board, having a plurality of nozzles; and an ink-jet chip, being used for controlling the ink-jetting and having a total area region consisting of a length and a width, wherein the total area region includes: a non-wiring region, where two ink flow channels being installed therein; and a wiring region, where an internal circuit being installed therein; wherein the internal circuit includes a plurality of ink-jet unit sets, and every ink-jet units of the plurality of ink-jet unit sets include a heater installed correspondingly to the nozzle; wherein the area of the wiring region of the ink-jet chip is less than 77% of the area of the total area region of the ink-jet chip. | 09-27-2012 |