阅读说明：本技术 一种汽车刹车用电磁阀环滤网及其安装结构 (Solenoid valve ring filter screen for automobile brake and mounting structure thereof ) 是由 蒋开洪 严力 王伟玮 毛睿 于 2020-10-27 设计创作，主要内容包括：本发明公开了一种汽车刹车用电磁阀环滤网及其安装结构,所述的环滤网包括滤网主体,所述的滤网主体的侧壁中部为一圈过滤网区域,所述的过滤网区域包括横向等距布置的纬线筋和竖向等距布置的经线筋,所述的纬线筋和经线筋交叉布置形成过滤网孔。本发明不会产生分体式过滤网网布在使用时脱出、撕裂的风险,从而使得电磁阀的性能得到保障。(The invention discloses an electromagnetic valve ring filter screen for an automobile brake and a mounting structure thereof, wherein the ring filter screen comprises a filter screen main body, the middle part of the side wall of the filter screen main body is a circle of filter screen area, the filter screen area comprises weft ribs which are transversely arranged at equal intervals and warp ribs which are vertically arranged at equal intervals, and the weft ribs and the warp ribs are arranged in a crossed manner to form filter mesh holes. The invention can not generate the risk that the mesh cloth of the split type filter screen is separated and torn when in use, thereby ensuring the performance of the electromagnetic valve.)

1. The utility model provides an electromagnetic valve ring filter screen for automobile brake, its characterized in that, ring filter screen (2) including filter screen main part (6), the lateral wall middle part of filter screen main part (6) be regional (10) of round filter screen, regional (10) of filter screen including weft muscle (7) that horizontal equidistance arranged and vertical equidistance arranged warp muscle (5), weft muscle (7) and warp muscle (5) cross arrangement form filter mesh hole (9).

2. The solenoid valve ring screen for an automobile brake of claim 1, wherein: the two axial ends of the ring filter screen (2) form frameworks (11), and a filter screen area (10) is formed between the frameworks (11) at the two ends.

3. The solenoid valve ring screen for an automobile brake of claim 2, wherein: the filter screen area (10) is uniformly divided by a plurality of axially arranged support ribs (8).

4. The solenoid valve ring screen for an automobile brake of claim 1, wherein: the weft ribs (7) are arranged on the outer side of the ring filter screen (2), and the warp ribs (5) are arranged on the inner side of the ring filter screen (2).

5. The solenoid valve ring screen for automobile brake of claim 4, wherein: the filtering meshes (9) are square or rectangular, and the length of the shortest side is not less than 0.1 mm.

6. The solenoid valve ring screen for automobile brake of claim 4, wherein: the cross sections of the weft ribs (7) and the warp ribs (5) are triangular with rounded tops.

7. The mounting structure of the electromagnetic valve ring filter screen for the automobile brake according to claim 1, characterized in that: including solenoid valve assembly (1) and mount pad (3), mount pad (3) on be provided with side opening (4) and bottom outlet (32), the upside of bottom outlet (32) set gradually bottom mounting hole (33) and middle part mounting hole (31), solenoid valve assembly (1) insert bottom mounting hole (33) from top to bottom in, ring filter screen (2) cover in the outside of solenoid valve assembly (1) and install in middle part mounting hole (31), side opening (4) be linked together with middle part mounting hole (31), solenoid valve assembly (1) and middle part mounting hole (31) hug closely ring filter screen (2) from top to bottom.

Technical Field

The invention relates to the field of electromagnetic valves for automobile brakes, in particular to an electromagnetic valve ring filter screen for an automobile brake and an installation structure thereof.

Background

The electromagnetic valve is one of indispensable components of automobile brake products, and is widely applied to ABS, ESP and integrated brake-by-wire products for automobile brakes at present. The annular filter screen is one of indispensable parts forming the solenoid valve assembly, and the main function of the annular filter screen is to prevent external pollutants (burrs, particles, fibers and the like) with certain sizes from entering the interior of the solenoid valve, so that phenomena such as valve port blockage, abnormal sealing performance, clamping stagnation of moving parts in the solenoid valve and the like are caused, and finally the performance failure of the solenoid valve and an assembly is caused.

The design scheme of the traditional split type ring filter screen is that a thin-wall plastic filter screen cloth or a filter steel mesh is fixed in a filter screen plastic framework in an insert injection molding mode, and the split type ring filter screen in the form has the risks of tearing the screen cloth, separating from the framework and the like under the conditions of pressure impact and high and low temperature change of pipeline brake fluid, so that the function of the ring filter screen is failed, and the electromagnetic valve and a product assembly have the risk of failure. There is a need for a ring screen construction that is reliable, durable, and easy to install.

Disclosure of Invention

The invention provides an electromagnetic valve ring filter screen for an automobile brake and a mounting structure thereof, which can avoid the risk that screen cloth of a split type filter screen is separated and torn when in use, thereby ensuring the performance of an electromagnetic valve.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an electromagnetic valve ring filter screen for automobile brake, the ring filter screen include the filter screen main part, the lateral wall middle part of filter screen main part be the round filter screen region, the filter screen region warp muscle that the weft muscle and the vertical equidistance that arrange including horizontal equidistance, weft muscle and warp muscle cross arrangement form the filter screen hole.

Preferably, the two axial ends of the ring filter screen form frameworks, and a filter screen area is formed between the frameworks at the two ends.

Preferably, the filter screen area is uniformly divided by a plurality of axially arranged support ribs.

Preferably, the weft ribs are arranged on the outer side of the ring filter screen, and the warp ribs are arranged on the inner side of the ring filter screen.

Preferably, the filter mesh is square or rectangular, and the length of the shortest side of the filter mesh is not less than 0.1 mm.

Preferably, the cross-sectional shapes of the weft ribs and the warp ribs are triangles with rounded tops.

The invention also comprises an installation structure of the electromagnetic valve ring filter screen for the automobile brake, which comprises an electromagnetic valve assembly and an installation seat, wherein the installation seat is provided with a side hole and a bottom hole, the upper side of the bottom hole is sequentially provided with a bottom installation hole and a middle installation hole, and the electromagnetic valve assembly is inserted into the bottom installation hole from top to bottom.

The ring filter screen is sleeved on the outer side of the solenoid valve assembly and is arranged in the middle mounting hole, the side hole is communicated with the middle mounting hole, and the solenoid valve assembly and the middle mounting hole are tightly attached to the ring filter screen from top to bottom.

Compared with the prior art, the invention has the beneficial effects that:

the ring filter screen is suitable for an electromagnetic valve for automobile braking, an original mesh fabric insert injection molding form is omitted, the small hole characteristics of the filter mesh fabric and a plastic framework are molded through ultra-precise injection molding, and the ring filter screen has the advantages of simple injection molding process, good consistency, low unit price and the like. The integral structure is high in strength, and the risk that the split type filter screen cloth is separated and torn when the split type filter screen cloth is used is avoided, so that the performance and the service life of the electromagnetic valve are guaranteed.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view structural diagram of the present invention;

FIG. 3 is a top view of the present invention;

fig. 4 is a schematic view of the mounting structure of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the invention relates to an electromagnetic valve ring filter screen for an automobile brake, wherein the ring filter screen 2 comprises a filter screen main body 6, the middle part of the side wall of the filter screen main body 6 is a circle of filter screen area 10, the filter screen area 10 comprises weft ribs 7 which are transversely arranged at equal intervals and warp ribs 5 which are vertically arranged at equal intervals, and the weft ribs 7 and the warp ribs 5 are arranged in a crossing manner to form filter mesh holes 9.

The ring filter screen 2 is a thin-wall precise plastic piece, nylon which meets the working temperature, is compatible with brake fluid and has excellent flowing property is required to be selected as an injection molding material, and meanwhile, the nylon is required to be matched with a precise injection molding machine, and the precise injection molding machine has the characteristics of high mold temperature control precision, high injection pressure control precision, high feeding quantity control precision and the like. The ring screen 2 can be manufactured in stable batches, with the materials and the injection molding machine meeting the requirements.

The weft ribs 7, the warp ribs 5 and the filter screen main body 6 are integrally formed through a precision injection molding machine, so that the filter screen area 10 is very firm, and the condition of separation or tearing can not occur.

In order to improve the intensity of whole ring filter screen 2, easy to assemble, ring filter screen 2's axial both ends form skeleton 11, form filter screen region 10 between the skeleton 11 at both ends, skeleton 11 can be mutually supported with the mounting hole, realizes ring filter screen 2's stable installation.

In order to improve whole ring filter screen 2's intensity, filter screen region 10 carry out evenly to cut apart by the brace rod 8 of a plurality of axial arrangement, the skeleton 11 at two ends of brace rod 8 go up ring filter screen 2 both ends, the brace rod 8 can maintain the stability of filter screen structure and size, make ring filter screen 2 after the completion of moulding plastics simultaneously, during the ejecting product of drawing of patterns, the product can not produce the deformation that influences the function because of ejecting power, the feed inlet that uses when the middle part of brace rod 8 also conveniently sets up injection moulding, feed inlet aperture optimal control is about 0.6 mm.

Preferably, the weft ribs 7 are arranged on the outer side of the ring filter screen 2, the warp ribs 5 are arranged on the inner side of the ring filter screen 2, and the weft ribs 7 and the warp ribs 5 are not arranged on the same plane, so that a filter screen area 10 formed by the weft ribs 7 and the warp ribs 5 is three-dimensional and has higher strength.

The filtering meshes 9 are square or rectangular, the length of the shortest side is not less than 0.1mm, and the size is reasonable, so that the stable forming process can be met.

The cross-sectional shapes of the weft ribs 7 and the warp ribs 5 are triangles with rounded corners at the tops so as to facilitate demoulding, the cross-sectional height is more than or equal to 0.2mm, and the space between the adjacent weft ribs 7 and the space between the adjacent warp ribs 5 are more than or equal to 0.1 mm.

An embodiment as mounting structure of solenoid valve ring filter screen for automobile brake, including solenoid valve assembly 1 and mount pad 3, mount pad 3 on be provided with side opening 4 and bottom outlet 32, the upside of bottom outlet 32 set gradually bottom mounting hole 33 and middle part mounting hole 31, solenoid valve assembly 1 insert in bottom mounting hole 33 from top to bottom.

The ring filter screen 2 is sleeved outside the solenoid valve assembly 1 and is installed in the middle installation hole 31, the side hole 4 is communicated with the middle installation hole 31, the solenoid valve assembly 1 and the middle installation hole 31 closely attach the ring filter screen 2 up and down, and specifically, the maximum outer diameter area of the framework 11 at the upper end of the ring filter screen 2 is in interference fit with the middle installation hole 31 of the solenoid valve installation hole; the minimum inner hole of the framework 11 at the lower end of the ring filter screen 2 is in interference fit with the corresponding assembly position of the electromagnetic valve assembly 1 without the ring filter screen; and the electromagnetic valve assembly 1 without the ring filter screen is in interference fit with the matching area of the bottom mounting hole 33.

The annular filter screen 2 can be stably and firmly installed due to the three-part interference fit relationship, and when the brake fluid pressure at the side hole 4 is higher than the brake fluid pressure at the bottom hole 32 and the electromagnetic valve is in a conduction state, the brake fluid from the side hole 4 can only enter the electromagnetic valve assembly 1 without the annular filter screen through filtration outside the filter screen area 10 of the annular filter screen 2, and finally flows out of the bottom hole 32.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.