flow control device

A flow control device and valve core technology, applied in valve devices, cocks including cut-off devices, multi-port valves, etc., can solve problems such as decreased sealing performance, and achieve the effect of improving internal sealing performance

Active Publication Date: 2020-05-19
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the coolant reversing device is widely used in the hybrid and pure electric vehicle industries. However, the sealing performance of the reversing device may decrease after a period of use, which will affect the use.

Method used

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other Embodiment approach

[0024] In other embodiments, the spool can be integrally formed with other materials such as ceramics, plexiglass, or metal, or a sealing contact structure of other materials such as ceramics, plexiglass, or metal is embedded on the outside of the spool 2, specifically the sealing contact portion of the spool 2 The main body part 20 protrudes outwards along the radial direction of the valve core, that is, the sealing contact part of the valve core 2 is fitted and assembled with the main body part 20 or the sealing contact part and the main body part 20 are integrally structured. The sealing contact part of 2 is a ceramic arc-shaped contact surface or a metal arc-shaped contact surface or a plexiglass arc-shaped contact surface. The surface roughness of the arc-shaped contact surface is greater than 0.03 μm and less than 0.48 μm, and the surface is relatively smooth to meet the sealing contact performance .

[0025] Driven by the transmission element, the spool 2 reciprocates a...

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PUM

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Abstract

A flow control device for a heat exchanging system comprises a shell, a valve element and a transmission element; the shell forms a containing part, a first connection port and a second connection port; the valve element comprises a body part, a first circulating channel and a sealing contact part; the first circulating channel comprises at least one circulating port which outwards penetrates thebody part; the valve element can move relative to the shell; the first connection port and the second connection port can be connected through the first circulating channel; the sealing contact part and the inner periphery side of the shell are in movable sealing arrangement; the inner periphery side of the shell is provided with the shell contact part making contact with the sealing contact part;and the inner sealing performance of the product is improved.

Description

technical field [0001] This invention relates to electronically controlled flow control devices. Background technique [0002] The electric vehicle thermal management system includes a coolant circulation system, which is composed of heat converters, power electronics, drive motors, on-board chargers, water storage pots, electric water pumps, reversing valves, high-temperature areas of cooling water tanks, high-voltage PTCs, and air-conditioning radiators , the reversing device is connected through pipeline circulation, which can be used to switch the flow direction of the coolant; for example, a hybrid vehicle usually adds a PTC heating device to make up for the lack of engine waste heat. At this time, it may be necessary to switch the coolant to the PTC heating device. In the process of switching the PTC heating device, it is also necessary to use a reversing valve to switch the flow direction of the coolant. [0003] At present, coolant reversing devices are widely used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/085F16K5/08
CPCF16K5/08F16K11/0853
Inventor 不公告发明人
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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