Method for manufacturing rotor portion of motor integrated type pump and motor integrated type pump equipped with the rotor portion
A manufacturing method and integrated technology, which are applied to components of pumping devices for elastic fluids, manufacturing stator/rotor bodies, non-variable-capacity pumps, etc., can solve problems such as magnet deterioration, improve productivity, suppress Interference, the effect of improving production performance
Inactive Publication Date: 2012-06-13
PANASONIC CORP
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Problems solved by technology
[0007] However, even in the case where the above-mentioned exposed portion is blocked with other parts (such as a front cover), since deterioration occurs over time, a slight gap is generated at the boundary between the main body portion of the molded part and the plugged portion, and from The working fluid intruding into this tiny gap may also degrade the magnet
Method used
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Embodiment Construction
[0035] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figure 1 ~ Figure 4 The motor-integrated pump of this embodiment is shown. in, figure 1 It is a cross-sectional view of a motor-integrated pump, figure 2 It is a cross-sectional view of the mold at the initial stage of manufacturing the rotor part of the motor-integrated pump, image 3 It is a cross-sectional view of a mold in the final stage of manufacturing the rotor part of a motor-integrated pump, Figure 4 is along figure 2 A cross-sectional view taken along line A-A in .
[0036] Such as figure 1 As shown, a motor-integrated pump (hereinafter simply referred to as a pump) 1 of this embodiment is formed by integrally combining a pump unit 2 arranged on the right side in the figure and a motor unit 3 arranged on the left side in the figure.
[0037] The pump unit 2 is accommodated in the pump housing 4, and includes: a scroll impeller 5; a suction port 6 fo...
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Provided are a manufacturing method of a rotor of a motor integrated pump capable of more reliably restraining the influence of operating fluid of the pump on the magnet and a motor integrated pump with the rotor is provided. The method includes: a magnet support process, supporting a magnet (11) inserted in a die (30) through a first, second and third pins (40,41,42); and a support component removing process, drawing out the first, second and third pins (40,41,42) from a first cavity (34) of the die (30) through a first, second and third implementation components (46,47,48) in the process offilling resin in the die (30). Therefore, even if in the region wherein, magnet is supported by the first, second and third pins (40,41,42), the shaping resin can be used to overcast.
Description
technical field [0001] The present invention relates to a method of manufacturing a rotor portion of a motor-integrated pump in which a pump unit and a motor unit are integrated, and a motor-integrated pump including the rotor portion. Background technique [0002] Conventionally, as a motor-integrated pump, for example, a centrifugal pump using an impeller disclosed in Patent Document 1 is known. In the motor unit of the motor-integrated pump disclosed in Patent Document 1, a stator portion having a coil is disposed around a peripheral surface (outer peripheral surface) of a rotor portion having an annular magnet, and the rotor portion is rotated by energizing the coil. The impeller is integrated with the rotor part to form a rotating device, and as the rotor part rotates, the impeller rotates to discharge the fluid. [0003] In the rotary device in which the rotor part and the impeller are integrated, first, the magnet is inserted into the mold, and thermoplastic resin is...
Claims
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IPC IPC(8): F04D13/06F04D29/22H02K15/03
CPCB29C45/14008B29C45/17B29C45/18B29D99/0025B29L2031/08F04D13/06F04D29/22F05D2210/11F05D2230/20F05D2240/20
Inventor 秋吉卓也住田安弘仓住博章原田高宏
Owner PANASONIC CORP