Pump and manufacturing method thereof
First Claim
1. A pump comprising:
- a pump unit having an impeller for sucking and/or discharging liquid;
a motor unit for driving the pump unit;
a case for accommodating the pump unit;
a partition plate for isolating the motor unit from the pump unit; and
a mold resin integrally formed with the motor unit to protect the motor unit,wherein a bottom portion of a cylindrical portion projecting from the partition plate to the motor unit has a liquid-free surface having a convex spherical shape.
2 Assignments
0 Petitions
Accused Products
Abstract
A pump includes a pump unit having an impeller for sucking and/or discharging liquid; a motor unit for driving the pump unit; a case for accommodating the pump unit; a partition plate for isolating the motor unit from the pump unit; and a mold resin integrally formed with the motor unit to protect the motor unit. Further, a bottom portion of a cylindrical portion projecting from the partition plate to the motor unit has a liquid-free surface having a convex spherical shape. Moreover, a method of manufacturing a pump, the method includes the steps of installing a partition plate at a lower half; installing a stator and a controlling part at the partition plate; closing the lower half with an upper half; curing resin after filling the resin into a cavity formed between the lower and the upper half; opening a mold; and extracting a molded motor product.
16 Citations
3 Claims
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1. A pump comprising:
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a pump unit having an impeller for sucking and/or discharging liquid; a motor unit for driving the pump unit; a case for accommodating the pump unit; a partition plate for isolating the motor unit from the pump unit; and a mold resin integrally formed with the motor unit to protect the motor unit, wherein a bottom portion of a cylindrical portion projecting from the partition plate to the motor unit has a liquid-free surface having a convex spherical shape. - View Dependent Claims (2)
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3. A method of manufacturing a pump, the method comprising the steps of:
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installing a partition plate at a lower half; installing a stator and a controlling part at the partition plate; closing the lower half with an upper half; curing resin after filling the resin into a cavity formed between the lower and the upper half; opening a mold; and extracting a molded motor product.
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Specification
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- Resources
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Current AssigneePanasonic Electric Works Company Limited (Panasonic Holdings Corporation)
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Original AssigneeAsahi Matsushita Electric Works Ltd. (Panasonic Holdings Corporation)
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InventorsAkiyoshi, Takuya
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Application NumberUS11/730,956Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current417/423.110CPC Class CodesF04D 13/0626 Details of the canF04D 29/628 especially adapted for liqu...
