阅读说明：本技术 一种电磁驱动执行机构 (Electromagnetic drive actuating mechanism ) 是由 赵敬刚 谢超华 张�林 张金伟 赵军 唐俊 齐邱豪 付林 于 2019-11-27 设计创作，主要内容包括：本发明提供一种电磁驱动执行机构,包括电磁线圈组件(1)、前轭套(2)和磁芯(4),所述电磁线圈组件(1)、前轭套(2)、磁芯(4)共同形成内腔(5),在前轭套(2)上形成与内腔(5)相通的油气循环通道(3),且油气循环通道(3)内腔界面棱边与外部空间界面棱边在磁芯(4)运动轴线的垂直面上的投影不重合。本发明可使发动机正时系统飞溅的机油不能非常容易地进入到电磁线圈组件的内腔中,而电磁线圈组件的内腔中的机油却能够容易地流出,从而有效地减少甚至避免发动机正时系统飞溅的机油进入到电磁线圈组件的内腔中而形成内腔积液,减轻了磁芯运动的阻力,具有结构简单、实施成本低等突出优点。(The invention provides an electromagnetic driving actuating mechanism which comprises an electromagnetic coil assembly (1), a front yoke bush (2) and a magnetic core (4), wherein the electromagnetic coil assembly (1), the front yoke bush (2) and the magnetic core (4) jointly form an inner cavity (5), an oil-gas circulation channel (3) communicated with the inner cavity (5) is formed on the front yoke bush (2), and the projection of an inner cavity interface edge and an outer space interface edge of the oil-gas circulation channel (3) on the vertical plane of the movement axis of the magnetic core (4) is not overlapped. The invention can ensure that the engine oil splashed by the engine timing system can not enter the inner cavity of the electromagnetic coil assembly very easily, and the engine oil in the inner cavity of the electromagnetic coil assembly can flow out easily, thereby effectively reducing and even avoiding the engine oil splashed by the engine timing system from entering the inner cavity of the electromagnetic coil assembly to form inner cavity accumulated liquid, lightening the resistance of the magnetic core movement, and having the outstanding advantages of simple structure, low implementation cost and the like.)

1. An electromagnetic drive actuating mechanism comprises an electromagnetic coil component (1), a front yoke bush (2) and a magnetic core (4), wherein the electromagnetic coil component (1), the front yoke bush (2) and the magnetic core (4) jointly form an inner cavity (5), and is characterized in that: an oil-gas circulation channel (3) is formed on the front yoke bush (2), the oil-gas circulation channel (3) is communicated with the inner cavity (5), and the projection of the interface edge of the inner cavity of the oil-gas circulation channel (3) and the projection of the interface edge of the outer space on the vertical plane of the movement axis of the magnetic core (4) are not superposed.

2. The electromagnetic drive actuator of claim 1, wherein: the oil-gas circulation channel (3) on the front yoke bush (2) is of a through hole structure, and the through hole is obliquely arranged relative to the magnetic core (4).

3. The electromagnetic drive actuator of claim 2, wherein: and an included angle between the axis of the oil-gas circulation channel (3) and the axis of the magnetic core (4) is an acute angle.

4. The electromagnetic drive actuator of claim 1, wherein: the oil-gas circulation channel (3) on the front yoke bush (2) is of a curved through hole structure, and the axis of the curved through hole is a broken line.

5. The electromagnetic drive actuator of claim 4, wherein: the axis of the curved through hole is a broken line of an L-shaped structure.

6. The electromagnetic drive actuator of claim 1, wherein: the front yoke bush (2) comprises an outer yoke body (6) and an inner yoke body (7), a fixed connecting structure is formed between the inner yoke body (7) and the outer yoke body (6), and an oil-gas circulation channel (3) is formed at the joint between the inner yoke body (7) and the outer yoke body (6).

7. The electromagnetic drive actuator of claim 6, wherein: fluid gaps are formed in the outer yoke body (6) and the inner yoke body (7) respectively, and the fluid gaps in the inner yoke body (7) and the fluid gaps in the outer yoke body (6) are combined together to form the oil-gas circulation channel (3).

8. The electromagnetic drive actuator according to claim 6 or 7, characterized in that: the inner yoke body (7) and the outer yoke body (6) form a fixed connection structure in an interference fit mode or a welding mode.

9. The electromagnetic drive actuator of claim 1, wherein: an auxiliary channel (8) is formed on the front yoke bush (2), the auxiliary channel (8) is communicated with the inner cavity (5) at a low position, and the oil-gas circulation channel (3) is communicated with the inner cavity (5) at a high position.

Technical Field

The invention relates to the field of control valve structure design, in particular to an electromagnetic driving actuating mechanism applied to a camshaft phase regulator and a gearbox of an internal combustion engine.

Background

The variable valve timing adjusting technology is characterized in that under a specific engine working condition, the opening angles of an intake valve and an exhaust valve of an internal combustion engine are controlled, and the overlap angle of the intake valve and the exhaust valve is changed, so that the purposes of increasing intake charge and efficiency, better organizing intake vortex, adjusting the explosion pressure and residual exhaust gas quantity of a cylinder and finally improving the comprehensive performances of the engine such as power, torque, emission, fuel economy and the like are achieved. In the working process of the existing electromagnetic driving actuating mechanism, engine oil splashed by an engine timing system can easily enter an inner cavity of an electromagnetic coil assembly to form accumulated liquid, so that the resistance of the movement of a magnetic core is increased.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the problems in the prior art, the electromagnetic drive actuating mechanism is provided, and the resistance of the movement of the magnetic core is reduced.

The technical problem to be solved by the invention is realized by adopting the following technical scheme: the utility model provides an electromagnetic drive actuating mechanism, includes solenoid assembly, preceding yoke bush and magnetic core, solenoid assembly, preceding yoke bush, magnetic core form the inner chamber jointly, preceding yoke bush on form oil gas circulation passageway, oil gas circulation passageway and inner chamber communicate with each other, just oil gas circulation passageway inner chamber interface edge does not coincide with the projection of exterior space interface edge on the perpendicular of magnetic core axis of motion.

Preferably, the oil-gas circulation channel on the front yoke bush is of a through hole structure, and the through hole is obliquely arranged relative to the magnetic core.

Preferably, an included angle between the axis of the oil-gas circulation channel and the axis of the magnetic core is an acute angle.

Preferably, the oil-gas circulation channel on the front yoke bush is of a curved through hole structure, and the axis of the curved through hole is a broken line.

Preferably, the axis of the curved through hole is a broken line of the L-shaped structure.

Preferably, the front yoke bush comprises an outer yoke body and an inner yoke body, a fixed connection structure is formed between the inner yoke body and the outer yoke body, and an oil-gas circulation channel is formed at a joint part between the inner yoke body and the outer yoke body.

Preferably, the outer yoke body and the inner yoke body are respectively provided with a fluid gap, and the fluid gap on the inner yoke body and the fluid gap on the outer yoke body are combined together to form an oil-gas circulation channel.

Preferably, the inner yoke and the outer yoke form a fixed connection structure in an interference fit manner or a welding manner.

Preferably, an auxiliary passage is formed on the front yoke bush, the auxiliary passage is communicated with the lower position of the inner cavity, and the oil-gas circulation passage is communicated with the upper position of the inner cavity.

Compared with the prior art, the invention has the beneficial effects that: the oil-gas circulation channel is formed on the front yoke bush and communicated with the inner cavity, and the projection of the interface edge of the inner cavity of the oil-gas circulation channel and the projection of the interface edge of the outer space on the vertical surface of the movement axis of the magnetic core are not overlapped, so that the engine oil splashed by the engine timing system can not enter the inner cavity of the electromagnetic coil assembly very easily, and the engine oil in the inner cavity of the electromagnetic coil assembly can flow out easily, therefore, the phenomenon that the engine oil splashed by the engine timing system enters the inner cavity of the electromagnetic coil assembly to form accumulated liquid in the inner cavity can be effectively reduced and even avoided, the movement resistance of the magnetic core is reduced, the structure is simple, the implementation cost is low, and the magnetic core can be guaranteed to move.

Drawings

Fig. 1 is a sectional view showing the construction of an electromagnetic actuator according to the present invention.

Fig. 2 is a schematic structural view of the front yoke bush in fig. 1 (embodiment 1).

Fig. 3 is a schematic structural view of the front yoke bush in fig. 1 (embodiment 2).

Fig. 4 is a schematic structural view of the front yoke bush in fig. 1 (embodiment 3).

Fig. 5 is a schematic structural view of the front yoke bush in fig. 1 (embodiment 4).

Part label name in the figure: 1-electromagnetic coil component, 2-front yoke bush, 3-oil gas circulation channel, 4-magnetic core, 5-inner cavity, 6-outer yoke body, 7-inner yoke body and 8-auxiliary channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.