CN220727148U - Electromagnetic valve piston component - Google Patents
Electromagnetic valve piston component Download PDFInfo
- Publication number
- CN220727148U CN220727148U CN202322436900.8U CN202322436900U CN220727148U CN 220727148 U CN220727148 U CN 220727148U CN 202322436900 U CN202322436900 U CN 202322436900U CN 220727148 U CN220727148 U CN 220727148U
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- CN
- China
- Prior art keywords
- piston
- sealing plug
- diameter
- mounting groove
- solenoid valve
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 84
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000002788 crimping Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model provides an electromagnetic valve piston component, which comprises a piston and a sealing plug for sealing a valve port of an electromagnetic valve, wherein the piston is provided with a mounting groove, the mounting groove comprises a large-diameter section and a small-diameter section, the small-diameter section is close to the bottom, the large-diameter section is close to an opening, the sealing plug comprises a large-diameter part and a small-diameter part, the sealing plug is arranged in the mounting groove and is fixedly riveted on the side wall of the piston, the large-diameter part is matched with the large-diameter section, the small-diameter part is matched with the small-diameter section, when the side wall of the riveting piston is tightly pressed on the sealing plug, the opening end of the side wall of the piston is thin, the thickness of the bottom end of the side wall is larger than that of the opening end, the sealing plug is not deformed inwards, the surface of the sealing plug is flat, and the sealing tightness of the sealing plug on the valve port is ensured.
Description
Technical Field
The utility model relates to an electromagnetic valve in the field of automobile air conditioners, in particular to an electromagnetic valve piston component.
Background
In the prior art, the utility model 201510489760.8 provides a solenoid valve piston component, which comprises a piston and a sealing plug for sealing a valve port of the solenoid valve, wherein the piston is provided with a mounting groove, the sealing plug is arranged in the mounting groove, a gap is formed between the bottom of the mounting groove and the bottom of the sealing plug, and the gap is communicated with a valve cavity of the solenoid valve outside the piston component; the sealing plug is used for contacting and sealing the valve port of the electromagnetic valve or keeping away from the valve port, the sealing plug is provided with a sealing plug channel which is communicated with the bottom of the sealing plug and the electromagnetic valve cavity outside the piston part, and the gap is communicated with the electromagnetic valve cavity outside the piston part through the sealing plug channel. However, the side wall of the piston is a thin wall, and when the side wall of the riveting piston presses the sealing plug, the whole thin wall comprises the bottom end which deforms inwards to press the sealing plug, and the part of the sealing plug protrudes outwards, so that poor sealing performance of the sealing plug on the valve port is caused.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a solenoid valve piston component.
The technical scheme of the utility model is as follows: the utility model provides a solenoid valve piston part, includes the piston and is used for sealing the sealing plug of solenoid valve port, its characterized in that, the piston is equipped with the mounting groove, the mounting groove includes major diameter section and minor diameter section, and wherein the minor diameter section is close to the bottom, and the major diameter section is close to the opening part, the sealing plug includes major diameter portion and minor diameter portion, the sealing plug is arranged in the mounting groove and the riveting piston lateral wall is fixed, major diameter portion with major diameter section cooperation, minor diameter portion with minor diameter section cooperation.
Further, the sealing plug includes a plurality of side grooves extending through the large diameter portion.
Further, the depth of the side groove is smaller than half of the difference between the diameters of the large diameter part and the small diameter part of the sealing plug.
Further, the piston forms a riveting part after riveting the side wall of the piston, and the inner diameter of the riveting part is larger than the diameter of the small diameter part of the sealing plug.
Further, the piston comprises a plurality of radial small holes communicated with the electromagnetic valve cavity outside the piston part and the bottom end of the mounting groove, and the radial small holes penetrate through the side wall of the piston.
Further, a first step surface is formed between the large-diameter section and the small-diameter section, a second step surface is formed between the large-diameter part and the small-diameter part of the sealing plug, the first step surface is attached to the second step surface, and the bottom surface of the sealing plug is attached to the bottom surface of the mounting groove.
Further, the radial small hole is communicated with the first step surface.
Further, the piston includes at least one axial aperture communicating with the solenoid valve chamber outside the piston member and the bottom surface of the mounting groove, the axial aperture penetrating the bottom wall of the piston.
Further, the mounting groove of the piston is in an annular arrangement, the middle part of the piston, which is positioned in the mounting groove, is provided with a bulge, and the sealing plug is fixed by riveting the bulge.
Further, the bulge comprises a step surface, and the sealing plug is fixed by pressing the bulge through riveting to press the pressing ring.
By applying the technical scheme of the utility model, the electromagnetic valve piston component comprises a piston and a sealing plug for sealing a valve port of the electromagnetic valve, wherein the piston is provided with an installation groove, the installation groove comprises a large-diameter section and a small-diameter section, the small-diameter section is close to the bottom, the large-diameter section is close to the opening, the sealing plug comprises a large-diameter part and a small-diameter part, the sealing plug is arranged in the installation groove and is fixed on the side wall of the riveting piston, the large-diameter part is matched with the large-diameter section, the small-diameter part is matched with the small-diameter section, when the side wall of the riveting piston is tightly pressed against the sealing plug, the opening end of the side wall of the piston is thin, the bottom end thickness of the side wall is larger than that of the opening end, the sealing plug cannot be deformed inwards to extrude the sealing plug, the surface of the sealing plug is flat, and the sealing property of the sealing plug to the valve port is ensured.
Drawings
FIG. 1 is a schematic cross-sectional structural view of an embodiment of a solenoid valve piston assembly of the present utility model;
FIG. 2 is a schematic cross-sectional view of the piston of FIG. 1 in accordance with the present utility model;
FIG. 3 is a schematic cross-sectional view of the sealing plug of FIG. 1 in accordance with the present utility model;
FIG. 4 is a schematic top view of the sealing plug of FIG. 3 according to the present utility model;
fig. 5 is a schematic view of the solenoid valve piston assembly of the present utility model applied to a solenoid valve.
Number in the figure: the valve comprises a valve body 1, a coil assembly 2, a valve cover 3, a liquid inlet channel 101, a liquid outlet channel 102, a valve port 103, a piston component 10, a piston 11, a protrusion 111, a riveting part 112, a radial small hole 113, a piston side wall 114, a mounting groove 115, a large diameter section 1151, a small diameter section 1152, a first step surface 1153, a bottom surface 1154, a 116 axial small hole 117, a step surface 117, a sealing plug 12, a large diameter part 121, a small diameter part 122, a second step surface 123, a side groove 124, a through hole 125 and a pressure ring 13.
Detailed Description
The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.
Referring to fig. 1 to 5, the present embodiment discloses a solenoid valve piston member for use in a refrigerant circuit of an automobile air conditioning system or the like. The piston part 10 of the solenoid valve comprises a piston 11 and a sealing plug 12, the piston 11 being provided with a mounting groove 115 for mounting the sealing plug 12. Specifically, the mounting groove 115 of the piston 11 may be provided in a ring shape, the middle portion of the piston 11 located in the mounting groove 115 is further provided with a protrusion 111, the protrusion includes a step surface 117, the height of the step surface 117 is H, correspondingly, the middle portion of the sealing plug 12 is provided with a through hole 125, after the sealing plug 12 is placed in the mounting groove 115, the protrusion 111 is inserted into the through hole 125, and the height H of the through hole 125 is not greater than H, so as to further position the sealing plug 12. In order to prevent the sealing plug 12 from being displaced from the opening of the mounting groove 115, a pressing ring 13 is further provided, the step surface 117 positions the pressing ring 13, and then the pressing ring 13 and the protrusion 111 are riveted, so that the sealing plug 12 is limited in the mounting groove 115 by the pressing ring 13, the pressing ring is not required, and the sealing plug is fixed by riveting the protrusion. When the side wall of the riveting piston compresses the sealing plug, the opening end of the side wall of the piston is thin, the thickness of the bottom end of the side wall is larger than that of the opening end, the bottom end of the side wall cannot deform inwards to squeeze the sealing plug, the surface of the sealing plug is smooth, and the sealing property of the sealing plug to the valve port is guaranteed.
Wherein the mounting groove 115 includes a large diameter section 1151 and a small diameter section 1152, wherein the small diameter section is near the bottom and the large diameter section is near the opening. The large diameter section 1151 has a diameter D1 and the small diameter section 1152 has a diameter D1. The sealing plug 12 includes a large diameter portion 121 and a small diameter portion 122, the large diameter portion 121 having a diameter D2, and the small diameter portion 122 having a diameter D2. The sealing plug is arranged in the mounting groove and is fixed by riveting the side wall of the piston, the large-diameter part is matched with the large-diameter section, and the small-diameter part is matched with the small-diameter section. A first step surface 1153 is formed between the large-diameter section and the small-diameter section, a second step surface 123 is formed between the large-diameter section and the small-diameter section of the sealing plug, the first step surface is attached to the second step surface, and the bottom surface of the sealing plug is attached to the bottom surface 1154 of the mounting groove.
In this embodiment, the sealing plug includes a plurality of side grooves 124 penetrating through the large diameter portion, and the depth of the side grooves 124 is less than half of the difference between the diameters of the large diameter portion and the small diameter portion of the sealing plug, that is, only penetrating through the large diameter portion. The piston 11 forms a riveting part 112 after riveting the piston side wall 114, wherein the internal diameter of the riveting part is d3, and d3 is larger than the diameter d2 of the small diameter part of the sealing plug 12, so that the side groove 124 is prevented from being blocked by the riveting part. The piston includes a plurality of radial apertures 113 communicating with the solenoid valve chamber outside the piston member and the bottom end of the mounting groove, the radial apertures 113 extending through the side wall 114 of the piston. The radial small hole 114 is communicated with the first step surface 1153, the piston comprises at least one axial small hole 116 communicated with the electromagnetic valve cavity outside the piston part and the bottom surface of the mounting groove, and the axial small hole 116 penetrates through the bottom wall of the piston, so that the sealing plug is smoothly mounted and cannot be deformed due to temperature change or refrigerant entering.
The reference 5 shows that the electromagnetic valve piston component 10 is applied to an electromagnetic valve, the electromagnetic valve comprises a valve body 1 and a coil assembly 2, a liquid inlet channel 101, a liquid outlet channel 102 and a valve cavity communicated with the liquid inlet channel are arranged on the valve body, a valve port 103 communicated with the liquid outlet channel is arranged on the valve cavity, the electromagnetic valve comprises a valve cover 3 and the piston component 10 which axially moves relative to the valve cover, and the bottom of the valve cover is positioned in the valve cavity; the electromagnetic valve further comprises a reset spring, a sleeve, a fixed armature, a valve needle and a compression spring, wherein an axial through hole is formed in the fixed armature, the valve needle penetrates through the axial through hole, the reset spring is sleeved on the valve needle, the bottom end of the reset spring abuts against the bottom wall of the fixed armature, and the top end of the reset spring abuts against the end face of the piston part. When the piston 11 moves along the valve cavity, the sealing plug 12 can be driven to contact and seal the valve port of the electromagnetic valve or be far away from the opening valve port. The sealing plug 12 can be made of a material with good wear resistance and sealing performance, such as F4 or nylon, and the piston 11 moves according to a certain pressure difference, often made of a metal material, and the sealing plug 12 is separately arranged in the piston 11 to form the piston part 10.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. The electromagnetic valve piston component comprises a piston and a sealing plug for sealing a valve port of the electromagnetic valve, and is characterized in that the piston is provided with a mounting groove, the mounting groove comprises a large-diameter section and a small-diameter section, the small-diameter section is close to the bottom, the large-diameter section is close to the opening, the sealing plug comprises a large-diameter part and a small-diameter part, the sealing plug is arranged in the mounting groove and is fixed on the side wall of the piston in a riveting mode, the large-diameter part is matched with the large-diameter section, and the small-diameter part is matched with the small-diameter section.
2. A solenoid valve piston assembly according to claim 1 wherein said sealing plug includes a plurality of side grooves extending through said large diameter portion.
3. A solenoid valve piston assembly according to claim 2 wherein said side groove depth is less than half the difference between the diameters of said large and small bore portions of said sealing plug.
4. A solenoid valve piston assembly according to claim 3 wherein said piston forms a swage portion after crimping the piston sidewall, said swage portion having an inner diameter greater than the sealing plug minor diameter portion diameter.
5. The solenoid valve piston assembly of claim 1 wherein said piston includes a plurality of radial apertures communicating with a solenoid valve chamber external to said piston assembly and a bottom end of said mounting groove, said radial apertures extending through a sidewall of said piston.
6. The solenoid valve piston assembly of claim 5 wherein a first stepped surface is formed between said major and minor diameter sections and a second stepped surface is formed between said major and minor diameter portions of said sealing plug, said first and second stepped surfaces being in engagement and said sealing plug bottom surface being in engagement with said mounting groove bottom surface.
7. The solenoid valve piston assembly of claim 6, wherein said radial bore communicates with said first land.
8. The solenoid valve piston assembly of claim 1 wherein said piston includes at least one axial aperture communicating with a solenoid valve chamber external to said piston assembly and a bottom surface of said mounting groove, said axial aperture extending through a bottom wall of said piston.
9. The solenoid valve piston assembly of claim 1 wherein said piston mounting groove is annular and said piston has a boss in the middle of said mounting groove and said sealing plug is secured by staking said boss.
10. The solenoid valve piston assembly of claim 9 wherein said boss includes a stepped surface and said sealing plug is secured against the compression ring by staking said boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322436900.8U CN220727148U (en) | 2023-09-08 | 2023-09-08 | Electromagnetic valve piston component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322436900.8U CN220727148U (en) | 2023-09-08 | 2023-09-08 | Electromagnetic valve piston component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220727148U true CN220727148U (en) | 2024-04-05 |
Family
ID=90500309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322436900.8U Active CN220727148U (en) | 2023-09-08 | 2023-09-08 | Electromagnetic valve piston component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220727148U (en) |
-
2023
- 2023-09-08 CN CN202322436900.8U patent/CN220727148U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |