CN209812929U - ABS integrated electromagnetic valve secondary plastic sealing structure - Google Patents

Abstract

A secondary plastic sealing structure of an ABS integrated electromagnetic valve comprises a primary filling material, a secondary filling material, a coil assembly and a connecting piece; the coil assembly and the connecting piece are arranged side by side; the primary filling material is arranged on the periphery of the coil assembly; the secondary filling material is arranged on the periphery of the primary filling material and the periphery of the connecting piece. The utility model splits the original one-time plastic sealing process of the product into two-time plastic sealing processes, the first plastic sealing amount is smaller, the injection pressure is relatively lower, and the impact on the coil assembly in the injection process is smaller, thereby improving the qualification rate of the electrical property of the coil; the secondary filling material is sealed and molded for the second time, so that the warping degree of the secondarily molded bottom plate is reduced; the impact of secondary filling materials on the coil assembly during secondary injection molding is avoided, so that the qualification rate of products is improved.

Description

ABS integrated electromagnetic valve secondary plastic sealing structure

Technical Field

The utility model relates to a solenoid valve seals moulds technical field, especially relates to a structure is moulded to integrated solenoid valve secondary of ABS.

Background

The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Solenoid valves are used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured.

The electromagnetic valve sealing plastic is to perform sealing plastic treatment on the surface of the electromagnetic valve, the electromagnetic valve sealing plastic is different from general antirust treatment, and high-adhesiveness flexible rubber resin is sprayed on a coil assembly to isolate the coil assembly in the electromagnetic valve from the outside, so that the functions of corrosion resistance and rust resistance are achieved, and the service life of the electromagnetic valve is prolonged.

In the prior art, one-time plastic sealing molding treatment is adopted, and during injection molding, filler is affected by material shrinkage, so that the shrinkage deformation of a thick wall is large, the shrinkage deformation of a thin wall is small, and the warping condition of a bottom plate is caused. Because the filling material package material volume is big, when moulding plastics, in order to prevent that the material from not moulding plastics and just cooling, need increase injection pressure and the temperature of moulding plastics to coil pack in the solenoid valve has caused great impact, produces a large amount of unqualified products.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a structure is moulded to ABS integrated solenoid valve secondary seal through once sealing the former process split of moulding of product and become twice and seal the process of moulding, has reduced post forming's bottom plate warpage degree, secondary stopping when having avoided the second time to mould plastics impact to coil pack to the qualification rate of product has been improved.

(II) technical scheme

In order to solve the problems, the utility model provides an ABS integrated solenoid valve secondary plastic sealing structure, which comprises a primary filling material, a secondary filling material, a coil assembly and a connecting piece;

the coil assembly and the connecting piece are arranged side by side;

the primary filling material is arranged on the periphery of the coil assembly; the secondary filling material is arranged on the periphery of the primary filling material and the periphery of the connecting piece.

Preferably, a boss is arranged on the primary filling material; the plurality of bosses are arranged side by side along the horizontal direction; the secondary filling material is provided with a connecting groove; a plurality of connecting grooves are arranged side by side along the horizontal direction; the bosses correspond to the connecting grooves one by one; the boss is matched with the connecting groove structure.

Preferably, the section of the boss is trapezoidal; the two side faces of the boss in the horizontal direction gradually incline towards the outside from top to bottom.

Preferably, the primary filling material is provided with a first corrugated groove; a second corrugated groove is formed in the secondary filling material; the first corrugation groove and the second corrugation groove are matched in structure.

Preferably, the secondary filling material is provided with a groove; the bottom surface of the groove is connected with the bottom of the primary filling material.

Preferably, the size of the groove is gradually reduced from the groove bottom to the notch.

Preferably, the primary filler and the secondary filler are both made of rubber resin material.

The above technical scheme of the utility model has following profitable technological effect: the original one-time plastic sealing process of the product is split into two plastic sealing processes, the first one-time filling material is sealed and molded for the first time, the one-time filling material is sealed and molded on the periphery of the coil assembly, the first plastic sealing amount is small, the injection molding pressure is relatively low, and the coil assembly is subjected to smaller impact in the injection molding process, so that the qualified rate of the electrical performance of the coil is improved; the secondary packing material is sealed for the second time, the secondary packing material is sealed for the second time and is moulded on the primary packing material and the periphery of the connecting piece, the primary packing material is wrapped on the coil assembly in the primary packing material, the wall thickness of the secondary packing material is reduced, the warping degree of the secondary-formed bottom plate is reduced, the flatness of the bottom plate can be ensured only by certain deformation compensation, and in addition, when the secondary injection molding is carried out, because of the protection of the primary packing material, the impact of the secondary packing material on the coil assembly when the secondary injection molding is carried out is avoided, so that the qualified rate of products is improved.

Drawings

Fig. 1 is a schematic structural diagram of an ABS integrated solenoid valve sealing structure in the prior art.

Fig. 2 is the utility model provides a structure schematic diagram after ABS integrated solenoid valve secondary seals moulds structure for the first time.

Fig. 3 is the utility model provides a structure schematic diagram after ABS integrated solenoid valve secondary seals moulds structure secondary seal.

Reference numerals: 1. primary filling; 2. secondary filling materials; 3. a coil assembly; 4. a connecting member.

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. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1, for the sealing and molding structure of the ABS integrated solenoid valve in the prior art, a one-step sealing and molding process is adopted, the filler 10 is filled on the coil assembly 3 and the connecting piece 4 at one time, and during the injection molding, the filler is affected by the shrinkage of the material, which results in large shrinkage deformation at the thick wall and small shrinkage deformation at the thin wall, thereby causing the warpage of the bottom plate, and the thick wall with large deformation has large difficulty in compensating the deformation of the mold during the mold opening, which improves the difficulty of mold design. Because the amount of the filler 10 is large, the injection pressure and the injection temperature need to be increased during injection molding in order to prevent the material from being cooled before injection molding is finished, thereby causing large impact on the coil assembly 3 and producing a large amount of unqualified products.

As shown in fig. 2-3, the utility model provides a secondary plastic sealing structure of an ABS integrated solenoid valve, which comprises a primary filling material 1, a secondary filling material 2, a coil assembly 3 and a connecting piece 4;

the coil assembly 3 and the connecting piece 4 are arranged side by side;

the primary filling material 1 is arranged on the periphery of the coil assembly 3; the secondary filling material 2 is arranged on the periphery of the primary filling material 1 and the connecting piece 4.

In the utility model, the original one-time plastic sealing process of the product is split into two plastic sealing processes, the first one-time plastic sealing filler 1 is molded at the periphery of the coil component 3, the first plastic sealing amount is smaller, the injection pressure is relatively lower, and the impact on the coil component 3 in the injection process is smaller, so that the qualified rate of the electrical property of the coil is improved; the secondary packing material 2 is sealed for the second time, the secondary packing material 2 is sealed and moulded on the primary packing material 1 and the periphery of the connecting piece 4, the primary packing material 1 is wrapped on the coil component 3 in the primary packing material, the wall thickness of the secondary packing material is reduced, the warping degree of the secondary-formed bottom plate is reduced, the flatness of the bottom plate can be ensured only by certain deformation compensation, and in the secondary injection molding process, the secondary packing material 2 impacts the coil component 3 in the secondary injection molding process is avoided due to the protection of the primary packing material 1, so that the qualified rate of products is improved.

In an alternative embodiment, the primary filling material 1 is provided with a boss; the plurality of bosses are arranged side by side along the horizontal direction; the secondary filling material 2 is provided with a connecting groove; a plurality of connecting grooves are arranged side by side along the horizontal direction; the bosses correspond to the connecting grooves one by one; the boss is matched with the connecting groove structure.

It should be noted that, during the first injection molding, the primary filler 1 is provided with the boss, during the second injection molding, the secondary filler 2 plugs the bottom of the primary filler 1, the contact area between the secondary filler 2 and the primary filler 1 is increased, the connection structure between the secondary filler 2 and the primary filler 1 is firmer, the sealing performance is better, and the protection effect of the primary filler 1 and the secondary filler 2 on the ABS integrated solenoid valve is better.

In an alternative embodiment, the boss is trapezoidal in cross-section; the two side faces of the boss in the horizontal direction gradually incline towards the outside from top to bottom.

It should be noted that, the boss is embedded in the connecting groove, the connecting groove structure is matched with the boss structure, the limiting effect of the connecting groove on the boss is better, and the firmness of the connecting structure of the secondary filler 2 and the primary filler 1 is further improved, so that the protection effect of the primary filler 1 and the secondary filler 2 on the ABS integrated solenoid valve is further improved.

In an alternative embodiment, the primary filling material 1 is provided with a first corrugation groove; a second corrugated groove is formed in the secondary filling material 2; the first corrugation groove and the second corrugation groove are matched in structure.

It should be noted that, during the second injection molding, the material on one side of the joint between the secondary filler 2 and the primary filler 1 is distributed along the surface of the first corrugated groove on the primary filler 1, the joint area between the secondary filler 2 and the primary filler 1 is increased, the joint structure between the secondary filler 2 and the primary filler 1 is tighter, the sealing performance is better, and the connection reliability is better.

In an alternative embodiment, the secondary filling material 2 is provided with a groove; the bottom surface of the groove is connected with the bottom of the primary filling material 1.

It should be noted that, the bottom of the primary filling material 1 is connected with the bottom surface of the groove, the connection effect of the secondary filling material 2 and the primary filling material 1 is better, and the secondary filling material 2 is not easy to fall off from the primary filling material 1.

In an alternative embodiment, the groove has a decreasing dimension from the groove bottom to the notch.

It should be noted that, the limit of the primary filling material 1 to the secondary filling material 2 is improved, and the connection firmness of the primary filling material 1 and the secondary filling material 2 is ensured.

In an alternative embodiment, the primary filling material 1 and the secondary filling material 2 are both made of a rubber resin material.

The rubber resin refers to a modified resin made from natural rubber or synthetic rubber as a main raw material, and includes chlorinated rubber, cyclized rubber and the like; the rubber resin is a generic name of resins made by modifying natural rubber or synthetic rubber. The modification aims to maintain the water resistance, corrosion resistance, electric insulation and the like of rubber, and improve the adhesion of the rubber, namely the solubility in organic solvents and the surface hardness. Mainly comprises chlorinated rubber, cyclized rubber, styrene-butadiene rubber with high styrene content and the like. The primary filling material 1 and the secondary filling material 2 are both made of rubber resin materials, have good water resistance, corrosion resistance and electrical insulation performance, and are suitable for the use environment of the electromagnetic valve.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (7)

1. The secondary plastic sealing structure of the ABS integrated electromagnetic valve is characterized by comprising a primary filling material (1), a secondary filling material (2), a coil assembly (3) and a connecting piece (4);

the coil assembly (3) and the connecting piece (4) are arranged side by side;

the primary filling material (1) is arranged on the periphery of the coil assembly (3); the secondary filling material (2) is arranged on the periphery of the primary filling material (1) and the periphery of the connecting piece (4).

2. The ABS integrated electromagnetic valve secondary plastic sealing structure as claimed in claim 1, wherein a boss is arranged on the primary filling material (1); the plurality of bosses are arranged side by side along the horizontal direction; the secondary filling material (2) is provided with a connecting groove; a plurality of connecting grooves are arranged side by side along the horizontal direction; the bosses correspond to the connecting grooves one by one; the boss is matched with the connecting groove structure.

3. The ABS integrated solenoid valve secondary plastic sealing structure as claimed in claim 2, wherein the cross section of the boss is trapezoidal; the two side faces of the boss in the horizontal direction gradually incline towards the outside from top to bottom.

4. The ABS integrated electromagnetic valve secondary plastic sealing structure according to claim 1, wherein the primary filling material (1) is provided with a first corrugated groove; a second corrugated groove is formed in the secondary filling material (2); the first corrugation groove and the second corrugation groove are matched in structure.

5. The ABS integrated electromagnetic valve secondary plastic sealing structure as claimed in claim 1, wherein the secondary filling material (2) is provided with a groove; the bottom surface of the groove is connected with the bottom of the primary filling material (1).

6. The ABS integrated solenoid valve secondary plastic sealing structure as claimed in claim 5, wherein the size of the groove gradually decreases from the groove bottom to the groove opening.

7. The ABS integrated solenoid valve secondary plastic sealing structure as claimed in claim 1, wherein the primary filling material (1) and the secondary filling material (2) are both made of rubber resin material.