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Electromagnetic valve and heat management method

A solenoid valve and thermal management technology, applied in the field of thermal management, can solve the problems of complex hardware structure of the solenoid valve control unit, and achieve the effect of low cost, high performance and restraining the temperature rise of the coil

Pending Publication Date: 2020-10-27
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (4) If in order to control the temperature resistance of the coil of the solenoid valve, it is necessary to determine the temperature of the medium near the coil, a temperature sensor needs to be installed additionally, which will cause the hardware structure of the solenoid valve control unit to become more complicated

Method used

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  • Electromagnetic valve and heat management method
  • Electromagnetic valve and heat management method

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Embodiment 1

[0031] figure 1 A schematic structural diagram of a solenoid valve 1 according to an embodiment of the present disclosure is shown. and, figure 1 Also schematically shows the structure of the pipeline provided with the solenoid valve 1 . Such as figure 1 As shown, similar to the existing solenoid valve, the solenoid valve 1 of the embodiment of the present disclosure includes: a coil 10 and a magnetic core 20 . In this case, an electromagnetic field is formed when the coil 10 is energized and disappears after the coil 10 is de-energized. The magnetic core 20 operates according to the electromagnetic force generated by the electromagnetic field formed by energizing the coil 10 to control the fluid flowing in the pipeline where the electromagnetic valve 1 is installed. Specifically, under the action of electromagnetic force, the magnetic core 20 can change the opening degree of the port A and the opening degree of the port B, so as to distribute the flow of the fluid flowing...

Embodiment 2

[0049] As mentioned in the disadvantage (3) of the existing solenoid valve in the background technology section, as the coil temperature increases, the temperature resistance of the coil will decrease, which will finally affect the control performance of the solenoid valve, such as linear control performance, etc. . In other words, the coil temperature plays a crucial role in ensuring the temperature resistance of the coil and the control performance of the solenoid valve. Therefore, in order to perform linear control of the solenoid valve, it is necessary to accurately sense the temperature of the coil.

[0050] However, as described in the disadvantage (4) of the existing solenoid valve in the background technology section, in order to control the temperature resistance of the coil of the solenoid valve, a temperature sensor needs to be additionally provided, and this will lead to changes in the hardware structure of the solenoid valve control unit. more complicated. In or...

Embodiment 3

[0075] On the basis of the above-mentioned embodiment 2 of the present disclosure, as image 3 As shown, the solenoid valve according to the embodiment of the present disclosure further includes a sending module 60 . Wherein, the sending module 60 is connected with the computing module 50, and is used to transmit the temperature T of the coil 10 calculated by the computing module 50 at the K+1th moment k+1 sent to the thermal management system, wherein the thermal management system is based on the temperature T of the coil 10 at the K+1th moment k+1 To control the current applied to the coil 10 for corresponding thermal management.

[0076] Among them, the sending module of the embodiment of the present disclosure can be, for example, a communication module that can communicate with the thermal management system through short-distance communication such as Bluetooth or NFC, or can communicate with the thermal management system through long-distance communication such as a wir...

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Abstract

The invention provides an electromagnetic valve and a heat management method. The electromagnetic valve comprises a coil, a magnetic core and a cavity, wherein the coil forms an electromagnetic fieldunder an electrified circumstance, and the electromagnetic field disappears after outage of the coil; the magnetic core acts according to an electromagnetic force generated by the electromagnetic field to control a fluid flowing in a pipeline provided with the electromagnetic valve; and the cavity is provided with a flow guide hole, the flow guide hole is used for importing the fluid into the cavity and exporting the fluid in the cavity, and the coil is immersed in the fluid under a circumstance that the fluid is stored in the cavity. The electromagnetic valve provided by the invention is higher in performance while keeping an unchanged cost or is lower in cost while keeping unchanged performance. The heat management method provided by the invention can achieve coil temperature detection without a sensor, so that a hardware structure of an electromagnetic valve control circuit can be simpler.

Description

technical field [0001] The present disclosure relates to the technical field of thermal management, and in particular to a wet temperature-sensing solenoid valve and a thermal management method that can be applied to the thermal management of a whole vehicle. Background technique [0002] With the increasingly stringent environmental protection measures around the world, hybrid engines or pure electric engines have become a focus of automotive research and development due to their energy-saving and low-emission characteristics. For hybrid or pure electric engine systems, thermal management is becoming more and more important in pursuit of higher efficiency operation. At present, in order to realize a low-cost intelligent thermal management module (English: thermal management module; abbreviation: TMM), the concept of using a solenoid valve is proposed. That is, by controlling the current applied to the coil of the solenoid valve, the flow rate of fluid such as coolant flowi...

Claims

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Application Information

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IPC IPC(8): F16K31/06H01F7/06H01F27/10
CPCF16K31/0675H01F27/10H01F7/06
Inventor 汪路杨炳春吴寒
Owner SCHAEFFLER TECH AG & CO KG
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