Integrated solenoid structure and external solenoid valve of electric control shock absorber having the same

Abstract

The utility model provides an integrated solenoid structure and an external solenoid valve of an electric-controlled shock absorber having the same, the integrated solenoid structure comprising a shell, a rear magnetic conductive plate and a winding bracket; a mounting cavity with a left end opening is arranged on the left portion of the shell, the rear magnetic conductive plate is fixed on the inner end portion of the mounting cavity, the winding bracket is arranged inside the mounting cavity and the right end of the winding bracket is fixed to the left end of the rear magnetic conductive plate, the winding bracket and the rear magnetic conductive plate are both arranged coaxially with the mounting cavity, a coil is wound on the winding bracket, a wiring terminal is arranged on the right portion of the shell, a lead wire of the coil passes through a wire hole on the rear magnetic conductive plate and is electrically connected to a conductive pin in the wiring terminal, the external solenoid valve of the electric-controlled shock absorber comprises the above-mentioned integrated solenoid structure; the utility model can make the assembly of the external solenoid valve of the electric-controlled shock absorber more convenient, and has excellent installation performance, and can also make the structure of the external solenoid valve of the electric-controlled shock absorber more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electronically controlled shock absorber solenoid valves, in particular to an integrated solenoid structure and an electronically controlled shock absorber external solenoid valve having the same. Background Art

[0002] The external solenoid valve of the electronically controlled shock absorber is an important component of the electronically controlled shock absorber for vehicles. The external solenoid valve of the electronically controlled shock absorber is used to control the flow rate of the oil in the electronically controlled shock absorber for vehicles to change the damping force of the electronically controlled shock absorber for vehicles, thereby improving the comfort of driving a car. For this purpose, Chinese Patent Publication No.: CN118149142A discloses a solenoid valve and a shock absorber. In the solenoid valve, when the floating ring is located at the position closest to the overflow valve body, the pilot valve cavity is connected to the oil return channel through the pressure relief structure, so the working fluid can enter the oil return channel through the pressure relief structure, and because the floating ring is located at the position closest to the overflow valve body, the working fluid can only enter the oil return channel through the pressure relief structure with a smaller cross-sectional area, thereby generating damping for the working fluid entering the oil return channel; however, in the above-mentioned solenoid valve structure, the various components in the electromagnetic drive part of the solenoid valve are of a split structure, so there is a disadvantage that the solenoid valve structure is poorly compact, that is, excellent installation performance cannot be obtained. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an integrated solenoid structure and an external solenoid valve of an electronically controlled shock absorber having the same, which can make the assembly of the external solenoid valve of the electronically controlled shock absorber more convenient and have excellent installation performance. In addition, it can make the structure of the external solenoid valve of the electronically controlled shock absorber more compact.

[0004] The utility model provides an integrated solenoid structure, comprising a shell, a rear magnetic conductive plate and a winding bracket; a mounting cavity with an opening at the left end is arranged on the left portion of the shell, the rear magnetic conductive plate is fixed on the inner end portion of the mounting cavity, the winding bracket is arranged inside the mounting cavity and the right end of the winding bracket is fixed to the left end of the rear magnetic conductive plate, the winding bracket and the rear magnetic conductive plate are both coaxially arranged with the mounting cavity, a coil is wound on the winding bracket, a wiring terminal is arranged on the right portion of the shell, and a lead wire of the coil passes through a wire hole on the rear magnetic conductive plate and is electrically connected to a conductive pin in the wiring terminal.

[0005] After adopting the above structure, the utility model can directly assemble the integrated solenoid structure formed by pre-assembling the shell, the rear magnetic conductive plate, the winding bracket and the coil with the related components in the external solenoid valve of the electronically controlled shock absorber, so that the assembly of the external solenoid valve of the electronically controlled shock absorber is more convenient and has excellent installation performance. In addition, the structure of the external solenoid valve of the electronically controlled shock absorber can be made more compact.

[0006] In a possible implementation manner, an embedding groove is provided on the inner end of the installation cavity, and the rear magnetic conductive plate is embedded in the embedding groove and tightly matched with the embedding groove.

[0007] An external electromagnetic valve of an electric control shock absorber comprises a valve seat, a fluid flow control valve core assembly, a magnetic shell and a movable armature push rod assembly; the fluid flow control valve core assembly and the magnetic shell are sequentially arranged on the inner side of the valve seat from left to right, the magnetic shell is fixed to the valve seat, the right end of the fluid flow control valve core assembly is fixed to the left end of the magnetic shell, a concave cavity is arranged at the right end of the magnetic shell, a magnetic shell inner column is arranged at the middle of the inner end of the concave cavity, the magnetic shell inner column extends from left to right along the axial direction of the magnetic shell, and the inner side of the magnetic shell inner column is shaped A accommodating chamber with an opening at the left end is formed, a movable armature push rod assembly is installed in the accommodating chamber, a control head is fixed to the left end of the movable armature push rod assembly, and the left end of the control head abuts against the liquid flow control valve core assembly; the external solenoid valve of the electronically controlled shock absorber also includes the above-mentioned integrated solenoid structure; the outer shell is fixed to the right part of the valve seat, the right end of the magnetic shell abuts against the rear magnetic plate, the winding bracket is inserted into the gap between the outer wall of the inner column of the magnetic shell and the inner wall of the magnetic shell, and the right end of the inner column of the magnetic shell abuts against the rear magnetic plate.

[0008] In a possible embodiment, a protrusion with an outer diameter smaller than that of the inner column of the magnetic shell is coaxially arranged at the right end of the inner column of the magnetic shell, and an annular step is formed at the connection between the protrusion and the right end of the inner column of the magnetic shell. The protrusion is inserted into the inner hole of the rear magnetic conductive plate, and the annular step abuts against the left end of the rear magnetic conductive plate.

[0009] In a possible implementation manner, the left end of the shell is sleeved on the outside of the right end of the valve seat and is tightly matched with the valve seat.

[0010] In a possible implementation, an annular groove is provided on the outer peripheral wall of the valve seat, a sealing ring is embedded in the annular groove, and the sealing ring is tightly matched with the inner wall of the annular groove and the inner wall of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic cross-sectional view of an integrated solenoid structure;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the external solenoid valve of the electronically controlled shock absorber. DETAILED DESCRIPTION

[0013] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0014] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0015] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0016] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] See also Figure 1-2 As shown, the embodiment of the present application discloses an integrated solenoid structure, including a shell 1, a rear magnetic conductive plate 2 and a winding bracket 3; the left portion of the shell 1 is provided with a mounting cavity 11 with a left end opening, the rear magnetic conductive plate 2 is fixed on the inner end portion of the mounting cavity 11, the winding bracket 3 is arranged inside the mounting cavity 11 and the right end of the winding bracket 3 is fixed to the left end of the rear magnetic conductive plate 2, the winding bracket 3 and the rear magnetic conductive plate 2 are both coaxially arranged with the mounting cavity 11, a coil 4 is wound on the winding bracket 3, a wiring terminal 12 is provided on the right portion of the shell 1, and the lead wire of the coil 4 passes through the wire hole located on the rear magnetic conductive plate 2 and is electrically connected to the conductive pin in the wiring terminal 12; the above-mentioned shell and the wiring terminal are integrally injection molded by plastic material.

[0018] An embedding groove 13 is provided on the inner end of the mounting cavity 11, and the rear magnetic conductive plate 2 is embedded in the embedding groove 13 and tightly matched with the embedding groove 13; after adopting this structure, under the action of the embedding groove, the rear magnetic conductive plate can be embedded in the embedding groove and tightly matched with the embedding groove, so that the rear magnetic conductive plate and the outer shell can be easily fixed, and the coaxiality of the rear magnetic conductive plate and the mounting cavity can be ensured.

[0019] An external electromagnetic valve of an electric control shock absorber comprises a valve seat 5, a liquid flow control valve core assembly 6, a magnetic shell 7 and a movable armature push rod assembly 8; the liquid flow control valve core assembly 6 and the magnetic shell 7 are sequentially arranged on the inner side of the valve seat 5 from left to right, the magnetic shell 7 is fixed to the valve seat 5, the right end of the liquid flow control valve core assembly 6 is fixed to the left end of the magnetic shell 7, a concave cavity 71 is arranged on the right end of the magnetic shell 7, a magnetic shell inner column 72 is arranged in the middle of the inner end of the concave cavity 71, the magnetic shell inner column 72 extends from left to right along the axial direction of the magnetic shell 7, a accommodating cavity 73 with an opening at the left end is formed on the inner side of the magnetic shell inner column 72, the movable armature push rod assembly 8 is installed in the accommodating cavity 73, a control head 81 is fixed to the left end of the movable armature push rod assembly 8, and the left end of the control head 81 is connected to the liquid flow control valve The core assembly 6 is abutted; the external solenoid valve of the electronically controlled shock absorber also includes the above-mentioned integrated solenoid structure; the outer shell 1 is fixed to the right part of the valve seat 5, the right end of the magnetic shell 7 is abutted against the rear magnetic plate 2, the winding bracket 3 is inserted into the gap between the outer wall of the inner column 72 of the magnetic shell and the inner wall of the magnetic shell 7, and the right end of the inner column 72 of the magnetic shell is abutted against the rear magnetic plate 2; after the external solenoid valve of the electronically controlled shock absorber adopts the above-mentioned integrated solenoid structure, since the outer shell, the rear magnetic plate, the winding bracket and the coil in the integrated solenoid structure are pre-assembled into one, it can bring convenience to the assembly of the solenoid structure with the valve seat and the magnetic shell, and can make the structure of the external solenoid valve of the electronically controlled shock absorber more compact, more convenient to assemble, and have excellent installation performance.

[0020] The right end of the inner column 72 of the magnetic shell is coaxially provided with a protrusion 74 whose outer diameter is smaller than that of the inner column 72 of the magnetic shell. The connection between the protrusion 74 and the right end of the inner column 72 of the magnetic shell forms an annular step 75. The protrusion 74 is inserted into the inner hole of the rear magnetic conductive plate 2, and the annular step 75 abuts against the left end of the rear magnetic conductive plate 2. By adopting this structure, the right end of the inner column of the magnetic shell can be reliably abutted against the middle part of the rear magnetic conductive plate, and because the protrusion is inserted into the inner hole of the rear magnetic conductive plate, the rear magnetic conductive plate and the inner column of the magnetic shell can have excellent magnetic conductivity.

[0021] The left end of the shell 1 is sleeved on the outside of the right end of the valve seat 5 and tightly fits with the valve seat 5; by adopting this structure, the shell can be reliably and conveniently fixed to the right end of the valve seat, that is, it has the advantage of easy assembly of the shell and the valve seat.

[0022] An annular groove 51 is provided on the outer peripheral wall of the valve seat 5, and a sealing ring 9 is embedded in the annular groove 51. The sealing ring 9 is tightly fitted with the inner wall of the annular groove 51 and the inner wall of the outer shell 1. By adopting this structure, under the action of the sealing ring, the outer shell and the valve seat can be more reliably tightly fitted together, that is, the assembly firmness of the outer shell and the valve seat can be further improved, and the sealing ring can prevent dust and impurities from entering the installation cavity of the outer shell through the gap between the outer shell and the valve seat.

[0023] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An integrated solenoid structure, characterized in that: The invention comprises a shell (1), a rear magnetic conductive plate (2) and a winding bracket (3); the left part of the shell (1) is provided with a mounting cavity (11) with an opening at the left end; the rear magnetic conductive plate (2) is fixed on the inner end of the mounting cavity (11); the winding bracket (3) is arranged inside the mounting cavity (11) and the right end of the winding bracket (3) is fixed to the left end of the rear magnetic conductive plate (2); the winding bracket (3) and the rear magnetic conductive plate (2) are both arranged coaxially with the mounting cavity (11); a coil (4) is wound on the winding bracket (3); the right part of the shell (1) is provided with a wiring terminal (12); the lead wire of the coil (4) passes through a wire hole on the rear magnetic conductive plate (2) and is electrically connected to a conductive pin in the wiring terminal (12).

2. The integrated solenoid structure according to claim 1, characterized in that: An embedding groove (13) is provided on the inner end of the installation cavity (11), and the rear magnetic conductive plate (2) is embedded in the embedding groove (13) and tightly matched with the embedding groove (13).

3. An external electromagnetic valve of an electric control shock absorber, comprising a valve seat (5), a liquid flow control valve core assembly (6), a magnetic shell (7) and a movable armature push rod assembly (8); the liquid flow control valve core assembly (6) and the magnetic shell (7) are arranged on the inner side of the valve seat (5) from left to right, the magnetic shell (7) is fixed to the valve seat (5), the right end of the liquid flow control valve core assembly (6) is fixed to the left end of the magnetic shell (7), the right end of the magnetic shell (7) is provided with a concave cavity (71), the concave cavity A magnetic shell inner column (72) is provided in the middle of the inner end portion (71), and the magnetic shell inner column (72) extends from left to right along the axial direction of the magnetic shell (7), and the inner side of the magnetic shell inner column (72) forms a receiving cavity (73) with a left end opening, and the movable armature push rod assembly (8) is installed in the receiving cavity (73), and a control head (81) is fixed to the left end of the movable armature push rod assembly (8), and the left end of the control head (81) is in contact with the liquid flow control valve core assembly (6); characterized in that: The external solenoid valve of the electronically controlled shock absorber also includes an integrated solenoid structure as described in any one of claims 1 to 2; the outer shell (1) is fixed to the right part of the valve seat (5), the right end of the magnetic shell (7) abuts against the rear magnetic plate (2), the winding bracket (3) is inserted into the gap between the outer wall of the inner column (72) of the magnetic shell and the inner wall of the magnetic shell (7), and the right end of the inner column (72) of the magnetic shell abuts against the rear magnetic plate (2).

4. The external solenoid valve of the electronically controlled shock absorber according to claim 3 is characterized in that: The right end of the inner column (72) of the magnetic shell is coaxially provided with a protrusion (74) whose outer diameter is smaller than that of the inner column (72) of the magnetic shell. An annular step (75) is formed at the connection between the protrusion (74) and the right end of the inner column (72) of the magnetic shell. The protrusion (74) is inserted into the inner hole of the rear magnetic plate (2), and the annular step (75) abuts against the left end of the rear magnetic plate (2).

5. The external solenoid valve of the electronically controlled shock absorber according to claim 3 is characterized in that: The left end of the housing (1) is sleeved onto the outside of the right end of the valve seat (5) and is tightly fitted with the valve seat (5).

6. The external solenoid valve of the electronically controlled shock absorber according to claim 5, characterized in that: An annular groove (51) is provided on the outer peripheral wall of the valve seat (5), a sealing ring (9) is embedded in the annular groove (51), and the sealing ring (9) is tightly matched with the inner wall of the annular groove (51) and the inner wall of the outer shell (1).

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