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Automotive electrical gas pump

專利號(hào)
US11177722B2
公開日期
2021-11-16
申請(qǐng)人
PIERBURG PUMP TECHNOLOGY GMBH(DE Neuss)
發(fā)明人
Frank Buerger; Andreas Wulf; Wolfgang Pilenz
IPC分類
H02K9/22; H02K11/33; F02M37/08; F04D13/06; F04D29/42; F04D29/58; H02K1/12; H02K5/04; H02K7/14
技術(shù)領(lǐng)域
stator,motor,mounting,pump,frame,yoke,coil,gas,electro,automotive
地域: Neuss

摘要

An automotive electrical gas pump includes an electronically commutated motor which drives a motor rotor to rotate within a motor can. The motor has a motor stator which comprises at least one static electro-magnetic coil. An electronic circuit board drives the at least one electro-magnetic coil. A mounting frame includes a motor can and a stator bed. The stator bed embeds the motor stator at least in part. The mounting frame is made of a plastic material which includes a thermally high-conductive filler material.

說(shuō)明書

1 2 3 4 5 6 7 8 9 10 11 12 13
CROSS REFERENCE TO PRIOR APPLICATIONS

This application is a U.S. National Phase application under 35 U.S.C. § 371 of International Application No. PCT/EP2016/082286, filed on Dec. 22, 2016. The International Application was published in English on Jun. 28, 2018 as WO 2018/113965 A1 under PCT Article 21(2).

FIELD

The present invention relates to an automotive electrical gas pump.

BACKGROUND

The present invention in particular relates to an automotive gas pump comprising an electronically commutated motor, wherein the motor comprises a motor stator with at least one static electro-magnetic coil and a motor rotor rotating within a motor can. The motor drives a pump rotor. The gas pump further comprises an electronic circuit board for driving the electro-magnetic coil.

An automotive gas pump comprising a brushless electronically commutated motor comprises a printed circuit board with power semi-conductors for commutating the motor. The power semi-conductors can heat up significantly when the automotive gas pump is driven under a full load. High thermal load can destroy the power semi-conductors. The state of the art suggests cooling the power semi-conductors to overcome these problems.

權(quán)利要求

1
What is claimed is:1. An automotive electrical gas pump comprising:a pump housing;a motor arranged in the pump housing, the motor being configured to be electronically commutated and to drive a motor rotor to rotate within a motor can, the motor comprising a motor stator which comprises a single static electro-magnetic coil;an electronic circuit board arranged in the pump housing, the electric circuit board being configured to drive the at least one electro-magnetic coil; anda mounting frame arranged in the pump housing, the mounting frame comprising a motor can and a stator bed which is configured to at least in part embed the motor stator, the mounting frame being made of a plastic material comprising a thermally high-conductive filler material,wherein,the mounting frame is provided separately from the pump housing.2. The automotive electrical gas pump as recited in claim 1, wherein the automotive electrical gas pump is a flow pump.3. The automotive electrical gas pump as recited in claim 1, wherein,the motor stator further comprises a magnet yoke, andthe mounting frame is configured to be in a thermal contact with the at least one electro-magnetic coil and with the magnet yoke of the motor stator.4. The automotive electrical gas pump as recited in claim 1, wherein the plastic material of the mounting frame is a polyamide plastic.5. The automotive electrical gas pump as recited in claim 1, wherein the thermally high-conductive filler material consists of ceramic particles.6. The automotive electrical gas pump as recited in claim 5, wherein the thermal conductivity of the mounting frame is in a range of 2-10 W/(m×K).7. The automotive electrical gas pump as recited in claim 1, wherein the thermally high-conductive filler material consists of mineral particles.8. The automotive electrical gas pump as recited in claim 7, wherein the thermal conductivity of the mounting frame is in a range of 2-10 W/(m×K).9. The automotive electrical gas pump as recited in claim 1, wherein the mounting frame further comprises a plurality of ribs.10. The automotive electrical gas pump as recited in claim 1, further comprising:a separate cover;a pump gas section; andan electronics chamber comprising the electric circuit board,wherein,the separate cover is configured to separate the pump gas section from the electronics chamber.11. The automotive electrical gas pump as recited in claim 10, wherein the separate cover and the mounting frame are made of different materials.
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