CN213929629U - Normally closed electromagnetic valve structure of automobile ABS - Google Patents

Abstract

The utility model discloses a car ABS normally closed solenoid valve structure belongs to the automotive technology field, which comprises an outer shell, quiet iron core and movable iron core, install quiet iron core in the shell and move the iron core, interference fit laser welding is fixed between shell and the quiet iron core, it has first mounting groove to move the upper end of iron core and open the chisel, fixedly connected with return spring in the first mounting groove, install the disk seat in the shell, interference fit and laser welded fastening between disk seat and the shell, it is located between shell and the disk seat to move the iron core, move the lower extreme of iron core and install the steel ball, steel ball and move interference fit between the iron core, finally can realize through the coil of cover on its shell whether circular telegram produce the electromagnetic force, whether the brake fluid of control wheel cylinder flows into low pressure energy storage ware, thereby improve braking effect.

Description

Normally closed electromagnetic valve structure of automobile ABS

Technical Field

The utility model relates to the field of automotive technology, more specifically say, relate to a car ABS normally closed solenoid valve structure.

Background

The latest national standard "nomenclature and definition of types of cars and trailers" (GB/T3730.1-2001) in China defines cars as follows: power-driven, non-rail-borne vehicles with 4 or more than 4 wheels, mainly used for: carrying personnel and/or goods; a vehicle for towing persons and/or goods; the application is special.

The common automobile ABS normally closed solenoid valve at present has the problems of low pressure reduction opening pressure, low response speed and poor consistency, and provides an automobile ABS normally closed solenoid valve structure for solving the problems.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide an automobile ABS normally closed solenoid valve structure, it can realize through the coil of cover on its shell whether circular telegram produce the electromagnetic force, whether the brake fluid of control wheel cylinder flows into low pressure energy storage ware to improve braking effect.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides a car ABS normally closed solenoid valve structure, includes shell, quiet iron core and moves the iron core, install quiet iron core in the shell and move the iron core, interference fit laser welding is fixed between shell and the quiet iron core, it has first mounting groove to move the upper end of iron core and open, fixedly connected with return spring in the first mounting groove, install the disk seat in the shell, interference fit and laser welded fastening between disk seat and the shell, it is located between shell and the disk seat to move the iron core, move the lower extreme of iron core and install the steel ball, steel ball and move interference fit between the iron core, finally can realize through the cover whether circular telegram of coil on its shell produces the electromagnetic force, whether the brake fluid of control wheel cylinder flows into low pressure accumulator to improve braking effect.

As an optimized proposal of the utility model, the static iron core is internally provided with the oil hole.

As an optimized proposal of the utility model, a pressure balance cavity is arranged between the shell and the static iron core.

As an optimized proposal of the utility model, the lower end of the static iron core is provided with a cross-shaped overflow groove.

As an optimized proposal of the utility model, the left and right ends of the movable iron core are provided with oil grooves.

As a preferred scheme of the utility model, the shell top is equipped with circular platform, the circular platform diameter is 3.8mm, it can be under electromagnetic force and return spring elastic force effect to move the iron core, reciprocating sliding in the shell.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the scheme includes that an oil hole is formed in a static iron core, brake fluid can flow into a pressure balance cavity conveniently due to the arrangement of the oil hole, the pressure balance cavity is arranged between a shell and the static iron core, the pressure balance cavity is arranged to reduce the hydraulic pressure applied to the static iron core conveniently and reduce the requirement on welding strength, a cross-shaped overflow groove is formed in the lower end of the static iron core, the cross-shaped overflow groove is formed in the lower end of the dynamic iron core, when the dynamic iron core is attracted by electromagnetic force to move upwards, the brake fluid between the dynamic iron core and the static iron core can be discharged quickly, the contact area between the dynamic iron core and the dynamic iron core is reduced, demagnetization is released more quickly, oil passing grooves are formed in the left end and the right end of the dynamic iron core, the two oil passing grooves are formed to reduce the hydraulic resistance in the moving process of the dynamic iron core, a circular platform is arranged to print and read codes by laser conveniently, and the diameter of the circular platform is 3.8mm, the movable iron core can slide in the shell in a reciprocating way under the action of electromagnetic force and the elastic force of the return spring.

Drawings

Fig. 1 is a sectional view of an ABS normally closed solenoid valve structure of an automobile according to the present invention;

fig. 2 is a perspective view of a static iron core 2 of an ABS normally closed solenoid valve structure of an automobile according to the present invention;

fig. 3 is a partial sectional view of an ABS normally closed solenoid structure of the present invention;

fig. 4 is a perspective view of the structural casing 1 of the ABS normally closed solenoid valve of the present invention;

fig. 5 is a perspective view of the movable iron core 3 of the ABS normally closed solenoid valve structure of the present invention.

The reference numbers in the figures illustrate:

1. a housing; 2. a stationary iron core; 3. a movable iron core; 4. a valve seat; 5. steel balls; 6. an oil passing hole; 7. a circular platform; 8. a pressure balance chamber; 9. a first mounting groove; 10. a return spring; 11. an overflow trough; 12. and (4) passing through an oil groove.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-5, an automobile ABS normally closed solenoid valve structure comprises a housing 1, a stationary core 2 and a movable core 3, the stationary core 2 and the movable core 3 are installed in the housing 1, the housing 1 and the stationary core 2 are fixed by interference fit laser welding, a first mounting groove 9 is drilled in the upper end of the movable core 3, a return spring 10 is fixedly connected in the first mounting groove 9, a valve seat 4 is installed in the housing 1, the valve seat 4 and the housing 1 are fixed by interference fit and laser welding, the movable core 3 is located between the housing 1 and the valve seat 4, a steel ball 5 is installed at the lower end of the movable core 3, and the steel ball 5 and the movable core 3 are in interference fit.

In this embodiment, install quiet iron core 2 in the shell 1 and move iron core 3, interference fit laser welding is fixed between shell 1 and the quiet iron core 2, the upper end of moving iron core 3 is opened and is chiseled there is first mounting groove 9, fixedly connected with return spring 10 in the first mounting groove 9, install disk seat 4 in the shell 1, interference fit and laser welding are fixed between disk seat 4 and the shell 1, it is located between shell 1 and the disk seat 4 to move iron core 3, move the lower extreme of iron core 3 and install steel ball 5, steel ball 5 and move interference fit between the iron core 3.

Specifically, referring to fig. 1-3, the stationary core 2 is provided with an oil hole 6 therein.

In this embodiment, the oil passing hole 6 is provided in the stationary core 2, and the oil passing hole 6 is provided to allow brake fluid to flow into the pressure balance chamber 8.

Specifically, referring to fig. 1-3, a pressure balance chamber 8 is provided between the housing 1 and the stationary core 2.

In this embodiment, be equipped with pressure balance chamber 8 between shell 1 and quiet iron core 2, pressure balance chamber 8 is equipped with for the convenience of reducing the hydraulic pressure that quiet iron core 2 receives, reduces the requirement to welding strength.

Specifically, referring to fig. 1-3, a cross-shaped overflow chute 11 is drilled at the lower end of the static iron core 2.

In this embodiment, the lower end of the static iron core 2 is provided with the cross-shaped overflow groove 11, the cross-shaped overflow groove 11 is used for facilitating the brake fluid between the movable iron core 3 and the static iron core 2 to be discharged rapidly when the movable iron core 3 is attracted by the electromagnetic force and moves upwards, the contact area with the movable iron core 3 is reduced, and the demagnetization release is faster.

Specifically, referring to fig. 5, oil passing grooves 12 are bored at the left and right ends of the movable iron core 3.

In this embodiment, the oil grooves 12 are cut at the left and right ends of the movable iron core 3, and the two oil grooves 12 are cut to reduce the fluid resistance in the movement process of the movable iron core 3.

Specifically, referring to the figure, a circular platform 7 is disposed at the top of the housing 1, the diameter of the circular platform 7 is 3.8mm, and the movable iron core 3 can slide in the housing 1 in a reciprocating manner under the action of electromagnetic force and the elastic force of the return spring 10.

In this embodiment, the circular platform 7 is provided for facilitating laser code printing and code reading, the diameter of the circular platform 7 is 3.8mm, and the movable iron core 3 can slide in the housing 1 in a reciprocating manner under the action of electromagnetic force and the elastic force of the return spring 10.

The working principle is as follows: the static iron core 2 is internally provided with an oil passing hole 6, the oil passing hole 6 is arranged for facilitating the brake fluid to flow into a pressure balance cavity 8, the pressure balance cavity 8 is arranged between the shell 1 and the static iron core 2, the pressure balance cavity 8 is arranged for facilitating the reduction of the hydraulic pressure borne by the static iron core 2 and the reduction of the requirement on welding strength, the lower end of the static iron core 2 is provided with a cross-shaped overflow groove 11, the cross-shaped overflow groove 11 is arranged for facilitating the rapid discharge of the brake fluid between the movable iron core 3 and the static iron core 2 when the movable iron core 3 is attracted by electromagnetic force to move upwards, the contact area with the movable iron core 3 is reduced, the demagnetization release is rapid, the oil passing grooves 12 are arranged at the left end and the right end of the movable iron core 3, the two oil passing grooves 12 are arranged for facilitating the reduction of the hydraulic resistance in the moving process of the movable iron core 3, and the circular platform 7 is, the diameter of the circular platform 7 is 3.8mm, the movable iron core 3 can slide in the shell 1 in a reciprocating manner under the action of electromagnetic force and the elastic force of the return spring 10, and finally whether the coil sleeved on the shell is electrified to generate the electromagnetic force can be realized to control whether brake fluid of the wheel cylinder flows into the low-pressure accumulator or not, so that the braking effect is improved.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention.

Claims (6)

1. The utility model provides an automobile ABS normally closed solenoid valve structure, includes shell (1), quiet iron core (2) and moves iron core (3), its characterized in that: install quiet iron core (2) in shell (1) and move iron core (3), interference fit laser welding is fixed between shell (1) and quiet iron core (2), the upper end of moving iron core (3) is opened and is chiseled first mounting groove (9), fixedly connected with return spring (10) in first mounting groove (9), install disk seat (4) in shell (1), interference fit and laser welded fastening between disk seat (4) and shell (1), it is located between shell (1) and disk seat (4) to move iron core (3), move the lower extreme of iron core (3) and install steel ball (5), steel ball (5) and move interference fit between iron core (3).

2. The ABS normally closed electromagnetic valve structure of the automobile according to claim 1, characterized in that: and an oil passing hole (6) is formed in the static iron core (2).

3. The ABS normally closed electromagnetic valve structure of the automobile according to claim 1, characterized in that: and a pressure balance cavity (8) is arranged between the shell (1) and the static iron core (2).

4. The ABS normally closed electromagnetic valve structure of the automobile according to claim 1, characterized in that: the lower end of the static iron core (2) is provided with a cross-shaped overflow groove (11).

5. The ABS normally closed electromagnetic valve structure of the automobile according to claim 1, characterized in that: oil passing grooves (12) are drilled at the left end and the right end of the movable iron core (3).

6. The ABS normally closed electromagnetic valve structure of the automobile according to claim 1, characterized in that: the magnetic suspension type magnetic suspension motor is characterized in that a circular platform (7) is arranged at the top of the shell (1), the diameter of the circular platform (7) is 3.8mm, and the movable iron core (3) can slide in the shell (1) in a reciprocating mode under the action of electromagnetic force and elastic force of a return spring (10).

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