CN213088884U - Integrated electromagnetic valve - Google Patents
Integrated electromagnetic valve Download PDFInfo
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- CN213088884U CN213088884U CN202021558084.8U CN202021558084U CN213088884U CN 213088884 U CN213088884 U CN 213088884U CN 202021558084 U CN202021558084 U CN 202021558084U CN 213088884 U CN213088884 U CN 213088884U
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- plastic
- injection molding
- coil assembly
- valve body
- secondary injection
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Abstract
The utility model provides an integral type solenoid valve, including plastic envelope coil pack, the secondary portion of moulding plastics and valve body, plastic envelope coil pack coats at the terminal surface and is stamped the plastic envelope layer of making through injection plastic molding, and the secondary portion of moulding plastics includes and makes, is fixed in through injection plastic molding the external screw thread interface on the terminal surface, the valve body include with the internal thread interface of external screw thread interface looks adaptation, the secondary portion of moulding plastics and valve body pass through threaded connection, a serial communication port, be equipped with protruding structure on the terminal surface, when the secondary portion of moulding plastics crosses the limit and takes place relative circumferential motion with plastic envelope coil pack because of the moment of torsion that the valve body receives, provide the effort that the torsion opposite direction that the portion received with the secondary portion of. The end face of the plastic package coil assembly is provided with the protruding structure, so that the fixed connection relation between the secondary injection molding part and the plastic package coil assembly is protected, the secondary injection molding part cannot be separated from the plastic package coil assembly due to external torsion, and the structural reliability of the electromagnetic valve is improved.
Description
Technical Field
The utility model belongs to the solenoid valve field especially relates to an integral type solenoid valve, and the IPC is categorised to belong to F16K 35/04.
Background
For the existing integrated electromagnetic valve, the water-proof sleeve is manufactured by injection plastic molding on the basis of the plastic package coil assembly, and a gap still exists between the water-proof sleeve and the plastic package coil assembly due to the fact that the water-proof sleeve and the plastic package coil assembly are made of different plastics. The valve body is generally assembled on the waterproof sleeve in a threaded manner, and the torque force acting on the waterproof sleeve easily breaks the fixed connection relation formed by the waterproof sleeve and the plastic package coil assembly through injection molding, so that the waterproof sleeve rotates circumferentially relative to the plastic package coil assembly, and the waterproof sleeve is separated from the plastic package coil assembly, and the electromagnetic valve is damaged and fails.
For terms and common knowledge, refer to the mechanical engineering handbook and the electromechanical engineering handbook, published in 1983 or 1997 of mechanical industry Press.
Disclosure of Invention
The utility model discloses the required technical problem who solves is, improves the contact surface structure between water proof cover and the plastic envelope coil pack, resists outside torsion. The utility model adopts the following technical scheme:
the utility model provides an integral type solenoid valve, includes plastic envelope coil pack, the secondary portion of moulding plastics and valve body, plastic envelope coil pack coats at the terminal surface and is stamped the plastic envelope layer of making through injection plastic molding, and the secondary portion of moulding plastics includes and makes, is fixed in through injection plastic molding external screw thread interface on the terminal surface, the valve body include with the internal thread interface of external screw thread interface looks adaptation, the secondary portion of moulding plastics and valve body pass through threaded connection, its characterized in that, be equipped with protruding structure on the terminal surface, when the secondary portion of moulding plastics crosses the limit and takes place relative circumferential motion with plastic envelope coil pack because of the moment of torsion that the valve body receives, provide the portion of moulding plastics with the secondary portion of moulding plastics to.
Specifically, the plastic package coil pack is provided with a through hole in the central axis position, and the secondary injection molding part further comprises a sleeve part which is made of the external thread connector together through injection plastic molding and covers the wall surface of the through hole.
Specifically, the protruding structure includes the stopper, the stopper protrusion in the terminal surface, and use the through-hole is arranged at the circumferencial direction at interval each other as the center.
Preferably, the size of stopper is 1.7mm to 3.5mm high, and 2mm to 3mm wide.
Specifically, protruding structure includes annular protruding muscle, annular protruding muscle protrusion in the terminal surface, and center on through-hole circumference sets up.
Preferably, the annular ribs have the size of 1mm in height and 1mm in width.
Preferably, the protruding structure further comprises a radial rib protruding from the end face and radially arranged around the through hole.
The utility model discloses following beneficial effect has:
(1) the end face of the plastic package coil assembly is provided with the protruding structure, so that the fixed connection relation between the secondary injection molding part and the plastic package coil assembly is protected, the secondary injection molding part cannot be separated from the plastic package coil assembly due to external torsion, and the structural reliability of the electromagnetic valve is improved.
(2) The protruding structure is designed by the characteristic of the limiting block, and the contact surfaces between the secondary injection molding part and the plastic package coil assembly are mutually staggered, so that the secondary injection molding part can resist external torsion in a mode of providing supporting force for the secondary injection molding part, and the relative circumferential rotation of the secondary injection molding part and the plastic package coil assembly is limited.
(3) The convex structure is designed according to the characteristics of the annular convex rib, the contact surfaces between the secondary injection molding part and the plastic package coil assembly are mutually staggered, so that the secondary injection molding part can resist external torsion in a manner of providing friction force for the secondary injection molding part, and the relative circumferential rotation of the secondary injection molding part and the plastic package coil assembly is limited. Moreover, the contact area between the secondary injection molding part and the plastic package coil assembly is increased, and the gap between the water separating sleeve and the plastic package coil assembly is bent at multiple positions beyond the annular convex rib, so that the path of the gap is prolonged, and the effect of preventing external water vapor from permeating into the electromagnetic valve is achieved.
(4) The protruding structure can be designed by the characteristics of a limiting block and the superposition of the annular convex ribs, and radial convex ribs can be additionally arranged between the annular convex ribs so as to achieve the combination of beneficial effects.
(5) In order to ensure that the protruding structure has enough strength and prevent deformation and damage, the limiting block has the preferred size of 1.7mm to 3.5mm in height and 2mm to 3mm in width, and the annular convex rib has the preferred size of 1mm in height and 1mm in width.
Drawings
FIG. 1 is a schematic view showing an assembly of a solenoid valve according to embodiment 1;
fig. 2 is a perspective view of the plastic encapsulated coil assembly of embodiment 1;
fig. 3 is a perspective view of an alternative design of the plastic encapsulated coil assembly of example 1;
FIG. 4 is a cross-sectional view of a secondary injection part formed by secondary injection molding of the plastic-encapsulated coil assembly according to example 1;
fig. 5 is a perspective view of the valve body of embodiment 1;
fig. 6 is a perspective view of the plastic encapsulated coil assembly of embodiment 2;
FIG. 7 is a cross-sectional view of a secondary injection part formed by secondary injection molding of the plastic-encapsulated coil assembly according to example 2;
fig. 8 is a perspective view of an optimized design of the plastic encapsulated coil assembly of example 2;
fig. 9 is a perspective view of a plastic encapsulated coil assembly of embodiment 3;
fig. 10 is a sectional view of a secondary injection part formed by secondary injection molding of the plastic-molded coil assembly according to embodiment 3.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, the utility model provides an integral type solenoid valve, including plastic envelope coil pack 1, the secondary portion of moulding plastics 2 and valve body 3.
As shown in fig. 1 and 2, the plastic-encapsulated coil assembly 1 is manufactured by injection molding on the basis of the coil assembly, and includes a coil assembly and a plastic-encapsulated layer 11. The coil assembly is an electromagnetic control part of the electromagnetic valve and is used for controlling the on-off of the water path. The coil assembly is provided with a through hole 12 at its central axial position for injection plastic molding of the secondary injection molding part 2. Other structures and the theory of operation of coil pack belong to prior art, the utility model discloses no longer describe to this. The plastic package layer 11 is coated on the surface of the coil component through injection plastic molding, and the through hole 12 is not blocked.
On an end surface 111 of the plastic package coil assembly 1, the plastic package layer 11 is provided with protruding limit blocks 112, and the limit blocks 112 protrude from the end surface 111 and are circumferentially arranged at intervals with the through holes 12 as centers. The stopper 112 is formed with the molding layer 11, and as shown in fig. 3, the shape of the stopper 112 can be extended to form an arc shape.
To ensure that the stopper 112 has suitable strength, the stopper 112 is preferably designed to have a height of 1.7mm to 3.5mm and a width of 2mm to 3 mm.
As shown in fig. 4, the secondary injection part 2 is a water-proof jacket formed by another injection molding of plastic on the basis of the plastic-molded coil assembly 1, the plastic flows into the coil assembly through hole 12 and covers the wall surface of the through hole 12 to form a sleeve part 21 of the water-proof jacket, and the sleeve part 21 is hollow for accommodating the iron core. The plastic is molded on the end surface 111 of the plastic package coil assembly 1 with the limiting block 112 to form the interface part 22 of the water-proof sleeve, the interface part 22 is disc-shaped, the edge of the interface part is protruded, and the radial outer side of the interface part is provided with threads to form an external thread interface 221 of the water-proof sleeve. The bottom 222 of the interface portion communicates with the sleeve portion 21.
As shown in fig. 5, the valve body 3 is in a shell shape and has a cavity, and the cavity is provided with a water inlet, a water outlet and a mounting interface 31. The inner side of the mounting interface 31 is provided with threads to form an internal threaded interface 311 of the valve body, and the threads of the interface part 22 are matched to ensure that the valve body 3 and the secondary injection part 2 are fixedly assembled and connected through the threaded engagement of the external threaded interface 221 and the internal threaded interface 311. After the valve body 3 and the secondary injection molding part 2 are fixedly assembled, the cavity of the valve body 3 and the cavity of the bottom 222 of the interface part jointly form a valve cavity, the valve cavity is used for arranging a starting and closing piece, and the starting and closing piece enables a flow passage between the water inlet and the water outlet to be opened or closed under the power-on and power-off control of the electromagnetic control part. The structure of switching piece and iron core, the theory of operation of assembly step and solenoid valve belong to prior art, the utility model discloses no longer describe to this.
When the valve body 3 is assembled with the secondary injection part 2 by screw thread, a torque force needs to be applied to the valve body 3 to make the internal screw thread interface 311 of the valve body 3 and the external screw thread interface 221 of the secondary injection part 2 screwed together. Under the condition that the internal thread interface 311 and the external thread interface 221 are completely screwed, if torsion is continuously applied to the valve body 3, the torsion borne by the valve body 3 is over-limited, and at the moment, the torsion acting on the valve body 3 is transmitted to the secondary injection molding part 2 through the fixed connection relationship between the valve body 3 and the secondary injection molding part 2. Because the secondary injection molding part 2 is manufactured by injection molding on the basis of the plastic package coil assembly 1, the plastic for molding the secondary injection molding part 2 and the plastic package layer 11 of the end surface 111 of the plastic package coil assembly cannot be fused with each other, and therefore a fine gap exists between the contact surfaces of the secondary injection molding part 2 and the plastic package coil assembly 1. The contact between the bottom 222 of the interface part and the end face 111 of the plastic package coil assembly is staggered due to the arrangement of the limiting blocks 112, the contact area between the bottom 222 of the interface part and the end face 111 of the plastic package coil assembly is increased, and the friction force for limiting the relative circumferential rotation of the bottom 222 of the interface part and the end face 111 of the plastic package coil assembly is increased. Furthermore, the limiting block 112 extends into the bottom 222 of the interface part for a certain distance, and the secondary injection molding part 2 is blocked and positioned by the limiting block 112 in the circumferential direction, so as to be circumferentially and fixedly connected with the plastic package coil assembly 1. Therefore, when the torque applied to the valve body 3 is over-limited, the limiting block 112 provides the secondary injection molding part 2 with a friction force and a supporting force in a direction opposite to the direction of the torque applied to the secondary injection molding part 2, so that the circumferential rotation of the secondary injection molding part 2 relative to the plastic package coil assembly 1 is limited, the fixed connection relationship between the secondary injection molding part 2 and the plastic package coil assembly 1 is maintained, and the structural reliability of the solenoid valve is enhanced.
Example 2:
as shown in fig. 6, this embodiment 2 is an alternative design based on embodiment 1, and the limiting block 112 is replaced by an annular rib 113. Annular protruding muscle 113 is around through-hole 12, and protrusion in plastic envelope coil pack 1's terminal surface 111, after the 2 injection plastic molding of the part of moulding plastics of secondary, because protruding muscle 113 sets up around through-hole 12 circumference, as shown in fig. 7, the clearance between interface portion's bottom 222 and the plastic envelope coil pack terminal surface 111 crosses annular protruding muscle 113 and takes place many places to bend, make the route extension in clearance, the area of contact increase between interface portion's bottom 222 and the plastic envelope coil pack terminal surface 111, play and prevent outside steam from permeating the inside effect of solenoid valve. The plurality of annular ribs 113 can further enhance the effect of preventing the external water vapor from permeating. Similarly, the bottom 222 of the interface portion and the end surface 111 of the plastic-packaged coil assembly are in contact with each other in a staggered manner due to the arrangement of the annular convex ribs 113, the contact area between the bottom 222 of the interface portion and the end surface 111 of the plastic-packaged coil assembly is increased, and the friction force for limiting the relative circumferential rotation between the secondary injection molding part 2 and the plastic-packaged coil assembly 1 is increased.
To ensure that the annular bead 113 has a suitable strength, the annular bead 113 is preferably sized to be 1mm high and 1mm wide.
As shown in fig. 8, on the basis of this embodiment 2, there is an optimized design that radial ribs 114 are disposed between the annular ribs 113, and the radial ribs 114 protrude from the end surface 111 and are radially disposed around the through holes 12 to reinforce the effect of the protruding structure against torsion.
Example 3:
as shown in fig. 9 and 10, this embodiment 3 is a combination design of embodiments 1 and 2, a limiting block 112 as described in embodiment 1 and a protruding rib 113 as described in embodiment 2 are disposed on an end surface 111 of the plastic package coil assembly 1, and the limiting block 112 and the protruding rib 113 are attached together to form an annular step shape. The limiting block 112 and the rib 113 may also be disposed at intervals, and the position relationship between the two does not affect the action principle, but the action principle of this embodiment 3 is the same as that of embodiments 1 and 2, and will not be described again here.
Claims (7)
1. An integrated electromagnetic valve comprises a plastic package coil assembly (1), a secondary injection molding part (2) and a valve body (3), wherein a plastic package layer (11) made by injection plastic molding covers the end face (111) of the plastic package coil assembly (1), the secondary injection molding part (2) comprises an external thread interface (221) made by injection plastic molding and fixed on the end face (111), the valve body (3) comprises an internal thread interface (311) matched with the external thread interface (221), and the secondary injection molding part (2) is connected with the valve body (3) through threads, it is characterized in that the end surface (111) is provided with a convex structure, when the secondary injection molding part (2) and the plastic package coil assembly (1) generate relative circumferential movement due to the over-limit of the torque borne by the valve body (3), provides acting force to the secondary injection molding part (2) in the direction opposite to the torsion force applied to the secondary injection molding part (2).
2. The integrated electromagnetic valve according to claim 1, wherein the plastic-sealed coil assembly (1) is provided with a through hole (12) at a central axis position, and the secondary injection molding part (2) further comprises a sleeve part (21) which is formed by injection molding together with the external thread interface (221) and covers the wall surface of the through hole (12).
3. The integrated solenoid valve according to claim 2, wherein the protrusion structure comprises a stopper (112), and the stopper (112) protrudes from the end surface (111) and is arranged at intervals in a circumferential direction around the through hole (12).
4. The integrated solenoid valve according to claim 3, wherein the size of the stopper (112) is 1.7mm to 3.5mm high and 2mm to 3mm wide.
5. The integrated solenoid valve according to claim 2, wherein the protruding structure comprises an annular rib (113), and the annular rib (113) protrudes from the end surface (111) and is circumferentially disposed around the through hole (12).
6. The integrated solenoid valve according to claim 5, wherein the protruding structure further comprises radial ribs (114) disposed between the annular ribs (113), and the radial ribs (114) protrude from the end surface (111) and are radially disposed around the through hole (12).
7. The integrated solenoid valve according to claim 5, wherein the annular rib (113) has dimensions of height 1mm and width 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558084.8U CN213088884U (en) | 2020-07-31 | 2020-07-31 | Integrated electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558084.8U CN213088884U (en) | 2020-07-31 | 2020-07-31 | Integrated electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213088884U true CN213088884U (en) | 2021-04-30 |
Family
ID=75628154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021558084.8U Active CN213088884U (en) | 2020-07-31 | 2020-07-31 | Integrated electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213088884U (en) |
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2020
- 2020-07-31 CN CN202021558084.8U patent/CN213088884U/en active Active
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Effective date of registration: 20230616 Address after: 529000 No. 336 Qinglan Road, Jiangmen High-tech Development Zone, Guangdong Province Patentee after: HANYU GROUP Co.,Ltd. Address before: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: JIANGMEN TIANDI ELECTRICAL APPLIANCE Co.,Ltd. |