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electronic pump

An electronic pump and rotor technology, applied in the field of thermal cycle system, can solve problems such as wear function and failure of limit device

Active Publication Date: 2020-10-27
ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The electronic pump includes a rotor assembly. The rotor assembly includes an impeller and a rotor. The impeller and the rotor rotate around the pump shaft. The axial impeller along the pump shaft is limited by the limit device. Wear and tear or even functional failure

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0016] figure 1 It is a structural schematic diagram of an embodiment of the electronic pump 100. The electronic pump 100 includes a pump casing that can form a pump inner cavity. In this embodiment, the pump casing includes a pump cover 10, an isolation sleeve 20, and a motor casing. body 30; in the present embodiment, the pump cover 10, the spacer 20 and the motor housing 30 are respectively injection molded, the pump cover 10 and the spacer 20 and the spacer 20 and the motor housing 30 are fixedly connected by screws 120 or bolts, The joint of pump cover 10 and spacer 20 and the joint of spacer 20 and motor housing 30 are all provided with sealing ring 130, which can improve the tightness of joint; spacer 20 separates the pump cavity into wet cavity 91 and dry cavity 92, the wet cavity 91 can have working medium flowing through it, and the dry ca...

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PUM

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Abstract

An electronic pump comprises a rotor assembly. The rotor assembly comprises a rotor and an impeller. The impeller comprises an upper cover plate, a lower cover plate and a blade. The blade is formed between the upper cover plate and the lower cover plate. The blade comprises a first blade body and a second blade body. The outer edge of the upper cover plate is defined as a first circumference, thesecond blade body starts from a second circumference, the diameter of the first circumference serves as a first diameter, the diameter of the second circumference serves as a second diameter, and thesecond diameter is equal to 0.6-0.7 time of the first diameter; the first blade body starts from a third circumference, the diameter of the third circumference serves as a third diameter, balancing holes are formed in the lower cover plate of the impeller, the centers of the balancing holes are located in a fourth circumference, the diameter of the fourth circumference is used as a fourth diameter, and the fourth diameter is larger than the third diameter and smaller than the second diameter; and in this way, pressure of the upper side and the pressure of the lower side of the lower cover plate are balanced, the axial force generated by upward movement of the rotor assembly is reduced, the reduction of the wear of a limiting component is facilitated, and the service life of the electronicpump is prolonged.

Description

【Technical field】 [0001] The invention relates to a heat cycle system, in particular to an electronic pump. 【Background technique】 [0002] In recent decades, electronic pumps have gradually replaced traditional mechanical pumps and have been widely used in thermal cycle systems. The electronic pump has the advantages of no electromagnetic interference, high efficiency and environmental protection, stepless speed regulation, etc., and can well meet the requirements of the market. [0003] The electronic pump includes a rotor assembly. The rotor assembly includes an impeller and a rotor. The impeller and the rotor rotate around the pump shaft. The axial impeller along the pump shaft is limited by the limit device. However, when the electronic pump is running, the rotor assembly will cause the limit device to stop. Wear and tear or even functional failure. [0004] Therefore, it is necessary to improve the existing technology to solve the above technical problems. 【Content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/06F04D29/66F04D29/22
CPCF04D13/06F04D29/2266F04D29/669
Inventor 不公告发明人
Owner ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD