Mounting structure of liquid sensor and liquid container
A technology of liquid sensor and installation structure, applied in liquid/fluid solid measurement, liquid level indicator, instrument, etc., can solve problems such as difficulty in ensuring sealing ability, wrong judgment, dimensional deviation, etc., to ensure detection accuracy and simplify manufacturing process Effect
Inactive Publication Date: 2006-07-26
SEIKO EPSON CORP
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Problems solved by technology
However, since the sensor unit is bonded to the periphery of the opening, the deviation in size makes it difficult to ensure the sealing ability
In addition, when the sensor unit is directly bonded to the periphery of the opening of the container main body or the periphery of the opening of the module, it may be easily affected by ink fluctuations or air bubbles in the ink, thereby causing erroneous judgments
Method used
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[0124] figure 1 A schematic configuration of an inkjet printer (liquid ejecting device) using an ink cartridge with a liquid sensor according to the present invention is shown. exist figure 1 Among them, the reference number 1 represents the bracket. The carriage 1 is guided to the guide member 4 by the timing belt 3 actuated by the carriage motor 2 , and reciprocates in the axial direction of the drum 5 .
[0125] An inkjet print head 12 is mounted on a side of the carriage 1 opposite to the recording paper 6, and an ink cartridge 7 for supplying ink to the print head 12 is detachably mounted thereon.
[0126] The cover member 31 is arranged at a starting position (right side in the figure) which is a non-printing area of the printer. When the print head 12 mounted on the carriage 1 moves to the starting position, the cover member 31 is pressed against the nozzle forming surface of the print head 12 to form a closed space between the cover member and the nozzle forming...
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The present invention provides a mounting structure of a liquid sensor comprising: a vibration cavity forming base portion which has a first surface and a second surface opposed to each other and in which a cavity for receiving a medium as a detection target is formed to be open toward the first surface side and a bottom surface of the cavity can vibrate; a sensor including a piezoelectric element having a first electrode formed on the second surface side of the vibration cavity forming base portion, a piezoelectric layer formed on the first electrode, and a second electrode formed on the piezoelectric layer; a mounting target member which is mounted with the sensor, the mounting target member having an upstream space which communicates with the cavity through an upstream flow path and a downstream space which communicates with the cavity through a downstream flow path; and an elastic seal member which is disposed between the sensor and the mounting target member and which seals a space between the sensor and the mounting target member.
Description
technical field [0001] The present invention relates to a liquid sensor and a liquid container having the same, and more particularly, the present invention relates to a mounting structure of a liquid sensor and a liquid container suitable for detecting a remaining amount of liquid in a liquid ejection device. Background technique [0002] As a representative example of a conventional liquid ejecting device, an inkjet printer including an inkjet printhead for printing an image is known. Examples of other liquid ejecting apparatuses may include apparatuses including pigment ejection heads for manufacturing color filters of liquid crystal displays, etc., apparatuses including electrode materials (conductive electrodes) for forming electrodes of organic EL displays, field emission displays (FEDs), etc. paste) ejection head, a device including an active organic material ejection head for manufacturing a biochip, and a device including a sample ejection head as a precision pipett...
Claims
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Login to View More IPC IPC(8): B41J2/175G01F23/296
Inventor 张俊华鳄部晃久
Owner SEIKO EPSON CORP