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pump device

A technology for pump devices and power conversion devices, applied in pump devices, electromechanical devices, pumps, etc., to achieve the effects of self-support and balance, good heat dissipation, and space saving

Active Publication Date: 2016-10-26
HITACHI IND EQUIP SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using a variable-speed pump unit that operates the pump at variable speeds according to water consumption can save energy, but installation of a control panel including an inverter is required to adopt a variable-speed pump unit

Method used

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Experimental program
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Embodiment Construction

[0038] Hereinafter, details of embodiments of the present invention will be described with reference to the drawings.

[0039] first, figure 1 It is an embodiment of the present invention, and shows, for example, the overall structure of a pump device installed outdoors. In the figure, reference numeral 1 denotes a pump casing, and reference numeral 10 denotes a cover covering the outer periphery of the rotating electric machine assembly. Symbol 20 represents a cooling cover. Symbol 40 denotes a terminal box with a built-in noise filter, and the external dimensions of the box housing the above-mentioned pump casing, cover, terminal box with a built-in noise filter, and power conversion device are limited to a pump with an induction motor installed as a pump device already installed. The external dimensions of the device are the same or less. As will be described later, the motor of the present invention is characterized in its cooling structure and the component arrangement...

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Abstract

The present invention provides a space-saving pump device capable of reliably dissipating heat and capable of variable-speed operation control with a single pump device. A pump device in which a pump part provided in a pump housing and having an impeller is integrally formed with a rotary motor that rotationally drives the impeller, and in the pump device, the rotary motor includes: a casing having a plurality of cooling Heat sink; stator, which is installed on the casing; rotor, which is fixed to the rotating shaft of the rotating electric machine, and is formed by arranging a plurality of permanent magnets in a cylindrical shape; bearings for supporting the rotating shaft; end covers for installing bearings; fans, for installing The end of the end cover on the side opposite to the side where the pump unit is installed; the cover covering the case; the power conversion device mounted on a part of the case; and the control board mounted on the other part of the case.

Description

technical field [0001] The present invention relates to, for example, a pump device installed as a water supply line (water supply line) of a factory or a part of a product. Background technique [0002] Conventionally, pump devices are used for various purposes such as water supply to houses, water supply in factories, and assembly of products to customers. [0003] Among them, when supplying water in the factory or installing in customer assembled products, since it needs to be installed in the middle of the piping, when replacing the pump unit, it is necessary to have the same installation dimensions or the same external dimensions as the installed pump unit. Furthermore, most of the pump devices used for water supply in factories operate at a fixed speed with a maximum rotation speed using commercial power. Using a variable-speed pump device that operates the pump at variable speeds according to water consumption can save energy, but installation of a control panel incl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/06F04D15/00F04D29/58H02K5/18H02K9/14H02K11/00
CPCF04D13/06F04D29/5806H02K5/18H02K9/04F04D15/0066F04D29/5813H02K9/14H02K11/33F04D15/00H02K5/20H02K11/00H02K9/06
Inventor 富田敏夫冈藤启高桥伸一藤田幸央
Owner HITACHI IND EQUIP SYST CO LTD