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The electromagnetic valve

A solenoid valve and valve seat technology, applied in the field of solenoid valves, can solve the problem of inability to discharge air to the outside

Inactive Publication Date: 2016-08-24
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, in the electromagnetic valve described in the above-mentioned Patent Document 1, although the air stagnant in the portion where the gasket moves in the axial direction can be discharged to the outside, there is a problem that the air stagnated in the portion other than this portion (for example, in the case itself) cannot be exhausted. The formed gap or the entire spring housing part) may be discharged to the outside

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no. 1 approach

[0080] Embodiments of the present invention will be described below based on the drawings. Figure 1 ~ Figure 4 The first embodiment of the solenoid valve according to the present invention is shown. The solenoid valve V1 of this embodiment is, for example, a normally closed solenoid valve that is incorporated in a hydraulic control device of a hydraulic brake device for a vehicle and that is placed in the brake fluid. Used in hydraulic control. In addition, in this solenoid valve V1 , a plunger 20 , a spring 30 , a solenoid 40 , and the like are assembled in a case 10 .

[0081] The case 10 accommodates the plunger 20 , the spring 30 , etc. inside, and includes: a cylindrical guide member 11 that assists axial movement of the plunger 20 ; and a cylindrical seat member 12 . , the seat member 12 is fluid-tightly assembled to the guide member 11 so that its position can be adjusted in the axial direction. figure 1 The inner circumference of the left end. Furthermore, the hous...

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Abstract

The solenoid valve includes a housing, a plunger, a spring, and a solenoid. The housing includes: a cylindrical guide member that assists the axial movement of the plunger; a seat member that is assembled to the guide member and has a valve hole; and is opposed to the end of the guide member by a predetermined amount in the axial direction. a fixed iron core arranged; and a sleeve connected to the outer periphery of the end portion of the fixed iron core and the outer periphery of the guide member in a liquid-tight manner to integrally connect the fixed iron core and the guide member. The plunger core is provided with a communication hole that communicates with the passage (communicated with the inlet and outlet) at one end, and communicates with the storage part of the spring at the other end to pass through in the axial direction; The gap portion between the end portion of the fixed core and the end portion of the guide member communicates with the communication hole. Therefore, when the working fluid flows from the inlet to the outlet, the air in the electromagnetic valve can be discharged to the outside by the working fluid passing through the passage to the communication hole and flowing from the passage to the outside of the housing.

Description

technical field [0001] The present invention relates to a solenoid valve, for example, to a hydraulic control device incorporated in a hydraulic brake device for a vehicle, and to a solenoid valve for hydraulic control of brake fluid (working fluid). Background technique [0002] This solenoid valve generally has: [0003] A casing having an inlet and an outlet of the working fluid, and a passage connecting the inlet and the outlet, and having a passage provided in the passage and formed at one end the valve hole of the valve seat; [0004] a plunger housed in the housing, having a valve portion capable of seating on or away from the valve seat, and capable of moving in the axial direction; [0005] a spring housed in the housing and biasing the plunger in the axial direction; and [0006] The solenoid is assembled in the case and generates an attractive force against the load (urging force) of the spring on the plunger by energization. [0007] In this solenoid valve, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
CPCF16K27/029F16K31/0665F16K31/0693B60T8/363F16K1/00F16K31/0655
Inventor 佐藤圭山田章裕七原正辉
Owner TOYOTA JIDOSHA KK
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