Electromagnetic valve and manufacturing method thereof
A manufacturing method and technology for solenoid valves, which are applied in coil manufacturing, circuits, valve details, etc., can solve the adverse effects of solenoid valve technology development and reliability, weak bonding at the joint between the skeleton and the injection molded part, and material and surface quality. Difficulty and other problems, to achieve the effect of good packaging effect, thinning and miniaturization, and reducing the production process
Active Publication Date: 2014-03-26
CHINA FIRST AUTOMOBILE
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Problems solved by technology
The advantage of this manufacturing method is that the coil parts are simple to make and easy to implement, but there are also obvious disadvantages: one is that the structure of the skeleton 7 and the injection part 8 has an adverse effect on miniaturization to a certain extent, and the other is that the skeleton 7 and the injection molding Part 8 is completed first and then, and it is difficult to maintain consistency in material and surface quality, which will cause the bond between the skeleton and the injection part 9 to be weak, and there is a hidden danger of easy detachment
The above shortcomings have adversely affected the technological development and reliability of solenoid valves
Method used
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[0022] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0023] Such as figure 2 , image 3 As shown: the solenoid valve 1 in the embodiment is mainly composed of an iron core 3, a coil part 5 and a sheath 4, the coil part 5 is set on the iron core 3 along the axial direction of the iron core 3, and the coil part 5 is insulated The material is kept electrically insulated from the iron core 3; the upper end of the iron core 3 is provided with two lead wire lead-out holes 14, and the coil part 5 has two lead-out wires 2 leading out, and a part of the length of the lead-out wire 2 is Encapsulated by insulating material, the lead wire 2 passes through the two lead wire lead-out holes 14 on the upper end of the iron core 3 with its part encapsulated by the insulating material, and the lead wire 2 has an electrical connector outside the solenoid valve 1; the sheath 4 is arranged outside the coil part 5 and the iron core...
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The invention discloses an electromagnetic valve and a manufacturing method thereof. The electromagnetic valve comprises an iron core, a coil assembly and a sheath, and is characterized in that the coil assembly mainly consists of a coil and an integral injection molding material, wherein the coil is completely encapsulated in the integral injection molding material; and the integral injection molding material forms an insulating material between the coil assembly and the iron core. According to the electromagnetic valve, lightening and thinning of the coil assembly in the axial direction and miniaturization in the radial direction can be realized, the coil in the coil assembly is not required to be wound on a framework which is premade and is used as one of product components, but a non-framework structure is directly adopted, so that the production process of the framework is reduced, and the process flow is simplified; and the coil assembly is changed to be formed through one-time integral injection modeling, so that a good packaging effect is achieved, and the reliability of the electromagnetic valve is greatly improved. In batch production of the electromagnetic valve, the consistency of performance of the coil assemblies of the electromagnetic valves between batches can be guaranteed excellently, so that the consistency of performance of the electromagnetic valve is greatly improved.
Description
technical field [0001] The invention relates to an electromagnetic valve used in various electrical equipment such as relays, contactors, and electromagnetic switching valves and a manufacturing method thereof, belonging to the technical field of electromagnetic valve design and manufacture. Background technique [0002] Solenoid valve is an automatic actuator widely used in modern industry. As an important industrial product directly related to enterprise safety production and technological development, it plays a pivotal role in many fields. Actuators in many low-voltage electrical products (such as contactors, relays, circuit breakers, etc.) ) are heavily dependent on such products. The electromagnet is an important part of the solenoid valve. In actual use, the electromagnet is divided into various types, such as E type, solenoid type, clapping type, disc type, etc. Disc electromagnets are widely used in some occasions where the working stroke is short, the response re...
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IPC IPC(8): F16K31/06H01F5/00H01F41/06
Inventor 胡林峰吴松蔡珍辉王凌云
Owner CHINA FIRST AUTOMOBILE