CN220505949U - Plastic package stator and electromagnetic valve using same - Google Patents
Plastic package stator and electromagnetic valve using same Download PDFInfo
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- CN220505949U CN220505949U CN202322199590.2U CN202322199590U CN220505949U CN 220505949 U CN220505949 U CN 220505949U CN 202322199590 U CN202322199590 U CN 202322199590U CN 220505949 U CN220505949 U CN 220505949U
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- 239000004033 plastic Substances 0.000 title claims abstract description 42
- 229920003023 plastic Polymers 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000012797 qualification Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000011089 mechanical engineering Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Magnetically Actuated Valves (AREA)
- Electromagnets (AREA)
Abstract
The utility model provides a plastic envelope stator and use its solenoid valve, this plastic envelope stator includes coil assembly and uses it to mould plastics the water proof cover that forms for the inserts, and coil assembly includes coil former, enameled wire, magnetic conduction cover and yoke, its characterized in that: the magnetic conduction sleeve is a tubular structure formed by rolling strip metal, limiting structures for limiting the circumferential gap from increasing are arranged at two ends of the circumferential direction of the magnetic conduction sleeve, and the water-proof sleeve comprises a sleeve part and a flange part, wherein the sleeve part is injection-molded on the tubular inner wall surface of the magnetic conduction sleeve, and the flange part extends outwards radially from one end of the sleeve part. According to the plastic-sealed stator, the limit structure for limiting the increase of the circumferential opening gap is arranged on the magnetic conduction sleeve, so that the problem that the coil frame radially expands and breaks an enameled wire due to the fact that the magnetic conduction sleeve is impacted and expanded by injection plastic in the injection molding process is solved, and the qualification rate of the plastic-sealed stator is improved.
Description
Technical Field
The utility model relates to a plastic package stator, in particular to an electromagnetic valve applying the plastic package stator, and the IPC classification number of the electromagnetic valve is F16K31/06.
Background
The existing structure of the stator applied to the electromagnetic valve, as shown in patent publication number CN111928007B, comprises a stator assembly part with a magnetic conduction sleeve, and in order to improve the magnetic performance of the electromagnetic valve, a water-blocking sleeve with a thinner wall thickness is generally injection-molded on the inner wall of the magnetic conduction sleeve of the stator assembly part. After the injection molding water-proof sleeve of the existing stator assembly, the stator assembly is easy to be broken by enameled wires, the qualification rate of electromagnetic valve production is affected, and the low-voltage starting performance of the existing electromagnetic valve is poor. Accordingly, there is a need for improvement.
For terms and knowledge, unless indicated by the specification, see "IEC electric standard term dictionary" (Chinese Standard Press 1992 version 1) "," electric manufacturing technology "(mechanical industry Press 1982 version 1)", "mechanical engineering handbook" and "electric engineering handbook" (mechanical industry Press 1978-1983 version 1 and 1997 version 2) "," valve handbook-type selection "(chemical industry Press 2013 version 1)", and special requirements (including mechanical requirements) of electric automatic controllers for household and similar uses of electric water valves of national standard GB/T21465 ", valve terms GB 14536.9", and QB/T1291 "automatic Water inlet solenoid valve for washing machines" national light industry Standard.
Disclosure of Invention
In order to solve the problems, the utility model provides the following technical scheme:
a plastic encapsulated stator comprising: the coil assembly and use it to mould plastics the water proof cover that forms for the inserts, the coil assembly includes the cylindric coil former that has the cavity, twines enameled wire on the coil former, installs in the downthehole magnetic conduction cover of coil former, cover locate the coil former outside and with the yoke that magnetic conduction cover is connected, its characterized in that: the magnetic conduction sleeve is a tubular structure formed by rolling strip metal, limiting structures for limiting the circumferential gap from increasing are arranged at two ends of the circumferential direction of the magnetic conduction sleeve, and the water-proof sleeve comprises a sleeve part and a flange part, wherein the sleeve part is injection-molded on the tubular inner wall surface of the magnetic conduction sleeve, and the flange part extends outwards radially from one end of the sleeve part.
According to the plastic-sealed stator, the limit structure for limiting the expansion of the circumferential gap and the increase of the volume is arranged on the magnetic conduction sleeve, so that the problem that the coil frame expands and breaks an enameled wire due to the fact that the magnetic conduction sleeve is expanded by impact of injection plastic in the injection molding process is solved, and the qualification rate of the plastic-sealed stator is improved.
Further, the limiting structures which limit the circumferential gap to be increased are arranged at the two circumferential ends of the magnetic conduction sleeve, specifically, a dovetail groove is formed in one circumferential end of the magnetic conduction sleeve, and a buckle matched with the dovetail groove is arranged at the other circumferential end of the magnetic conduction sleeve.
Further, the plastic-packaged stator further comprises a plastic-packaged shell which is injection-molded on the coil assembly, and the enameled wire is accommodated in an accommodating cavity which is surrounded by the coil frame, the magnet yoke and the plastic-packaged shell.
Further, the sleeve part is a hollow columnar body with two open ends, and a columnar plug is welded at the opening of one end of the sleeve part far away from the flange part.
The utility model also discloses an electromagnetic valve:
the utility model provides a solenoid valve, includes valve gap, spring, is equipped with movable iron core, the valve plug subassembly of rubber stopper and the arbitrary plastic envelope stator of above-mentioned, and valve gap lid is located on the plastic envelope stator, its characterized in that: the valve plug assembly cover is arranged on the flange part and comprises a valve plug and valve plug rubber sleeved on the valve plug, the valve plug is provided with an axial valve plug hole, the spring and the movable iron core are arranged on the sleeve part, and the movable iron core axially pushed by the spring enables the rubber plug to be clung to the valve plug hole.
According to the electromagnetic valve, the low-voltage starting capability of the electromagnetic valve is improved by improving the structure of the plastic package stator.
The utility model, in its more specific design and technical effects, is further described in the detailed description with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic perspective view of a plastic encapsulated stator according to the present utility model;
FIG. 2 is an axial cross-sectional view of a plastic encapsulated stator of the present utility model;
FIG. 3 is a schematic perspective view of a coil assembly;
fig. 4 is a schematic perspective view of a magnetic conductive sleeve according to the present utility model;
fig. 5 is a schematic perspective view of a second embodiment of a magnetic conductive sleeve according to the present utility model;
fig. 6 is an axial cross-sectional view of a second embodiment of a plastic encapsulated stator of the present utility model;
FIG. 7 is a schematic perspective view of the solenoid valve of the present utility model;
FIG. 8 is an axial cross-sectional view of the solenoid valve of the present utility model;
wherein: 1-housing cavity, 2-mounting cavity, 2 '-mounting cavity, 10-molded stator, 10' -molded stator, 20-bonnet, 21-water inlet, 22-water outlet, 30-spring, 40-rubber stopper, 50-moving core, 100-coil assembly, 110-bobbin, 120-enameled wire, 130-magnetically permeable sleeve, 131-dovetail slot, 131 '-groove, 132-snap, 132' -snap, 140-yoke, 150-insert, 200-water-blocking sleeve, 200 '-water-blocking sleeve, 210-sleeve, 210' -sleeve, 220-flange, 220 '-flange, 300-molded case, 300' -molded case, 400-plug, 500-plug assembly, 510-valve plug, 511-valve plug, 520-plug rubber
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1:
referring to fig. 1 to 3, the utility model discloses a plastic-sealed stator 10, which comprises a coil assembly 100 and a water-proof sleeve 200 formed by injection molding with the coil assembly 100 as an injection molding insert, wherein the coil assembly 100 comprises a cylindrical coil frame 110 with a hollow hole, an enameled wire 120 wound on the coil frame 110, a magnetic conduction sleeve 130 arranged on the hollow hole of the coil frame 110, a magnetic yoke 140 sleeved outside the coil frame 110 and connected with the magnetic conduction sleeve 130, and an inserting piece 150 fixed on the coil frame 110 and electrically connected with the enameled wire 120; the water blocking sleeve 200 includes a cylindrical sleeve portion 210 having both open ends and being hollow and injection-molded on the tubular inner wall surface of the magnetic conductive sleeve 130, and a flange portion 220 extending radially outward from one end of the sleeve portion. Further, referring to fig. 4, for the convenience of production and processing, the magnetic conductive sleeve 130 of the present utility model is a tubular structure (with circumferential connection slits) formed by rolling strip metal. Further, in order to reduce the problem that the coil frame expands and breaks the enameled wire due to the impact of high-pressure plastic on the large magnetic conductive sleeve 130 when the plastic package stator 10 is subjected to injection molding of the water-proof sleeve 200, two ends of the magnetic conductive sleeve 130 in the circumferential direction are provided with limiting structures for limiting the expansion of circumferential gaps and the increase of volume of the magnetic conductive sleeve 130.
According to the plastic-sealed stator, the limit structure for limiting the expansion of the circumferential gap and the increase of the volume is arranged on the magnetic conduction sleeve, so that the problem that the coil frame expands and breaks an enameled wire due to the fact that the magnetic conduction sleeve is expanded by impact of injection plastic in the injection molding process is solved, and the qualification rate of the plastic-sealed stator is improved.
Preferably, as shown in fig. 4, the limiting structure of the magnetic conductive sleeve 130 for limiting the increase of the circumferential opening gap of the present utility model is specifically: one end of the magnetic conduction sleeve 130 in the circumferential direction is provided with a dovetail groove 131, the other end of the magnetic conduction sleeve 130 in the circumferential direction is provided with a buckle 132 matched with the dovetail groove, and after the magnetic conduction sleeve 130 is coiled into a tube shape, the buckle 132 stretches into the dovetail groove 131. The problem that the coil former expands and breaks the enameled wire caused by the fact that the magnetic conduction sleeve is limited to be propped open when the plastic package shell is injection molded while the circumferential gap of the magnetic conduction sleeve is reduced is solved, and the magnetic performance of the plastic package stator is improved while the production qualification rate of the plastic package stator is improved. Of course, as other embodiments, as shown in fig. 5, the limiting structure of the magnetic sleeve 130' for limiting the increase of the circumferential opening gap may be designed as a groove 131' at one circumferential end of the magnetic sleeve and a buckle 132' at the other circumferential end of the magnetic sleeve, where the buckle 132' is sleeved into the groove 131' after being rounded; or the limiting structure for limiting the increase of the circumferential opening gap can be designed into other fastening structures in the mechanical engineering manual.
Referring to fig. 1 and 2, the plastic encapsulated stator 10 of the present utility model further includes a plastic encapsulation 300 injection molded onto the coil assembly 100. After the injection molding of the plastic package 300 is completed, the coil assembly 100 encloses the bobbin 110, the yoke 140 and the plastic package 300 into the accommodating cavity 1, and the enamel wire 110 is accommodated in the accommodating cavity 1. The design can reduce the influence of external environments on the coil assembly and improve the working stability of the plastic package stator.
Further, as shown in fig. 2, the plastic sealed stator 10 of the present embodiment is further provided with a columnar plug 400 at the opening of the end of the sleeve portion 210 away from the flange portion, and the plug 400 is welded to the sleeve portion 210. According to the design, the opening at one end of the sleeve part is sealed, the probability of water leakage of the installation cavity 2 for accommodating the opening and closing part is avoided, and the quality stability of the electromagnetic valve using the plastic package stator is improved.
Example 2:
this embodiment is similar to embodiment 1 except that the structure of the water blocking sleeve 200' is different from that of embodiment 1. Referring to fig. 6, the plastic-sealed stator 10 'includes a coil assembly 100 and a water-blocking sleeve 200' formed by injection molding the coil assembly 100 as an injection molding insert, wherein the water-blocking sleeve 200 'includes a cylindrical sleeve portion 210' injection molded on a tubular inner wall surface of the magnetic conductive sleeve 130, and a flange portion 220 'extending radially outward from one end of the sleeve portion, and an axial end of the sleeve portion 210' is open and an axial end thereof is closed. In the plastic-sealed stator of the present embodiment, the sleeve portion 210' directly forms the mounting cavity 2' when the water-blocking sleeve 200' is injection-molded, so that the subsequent mounting process can be reduced, and the seal plug 400 of embodiment 1 can be saved.
The utility model also discloses an electromagnetic valve:
referring to fig. 7 and 8, the electromagnetic valve of the present utility model includes the plastic sealed stator 10, the valve cover 20 covered on the plastic sealed stator 10, the spring 30, the movable iron core 50, the rubber plug 40 arranged at one axial end of the movable iron core 50, and the valve plug assembly 500, wherein the valve cover 20 is provided with the water inlet 21 and the water outlet 22; the valve plug assembly 500 is covered on the flange portion 220 of the plastic package stator 10, and comprises a valve plug 510 and a valve plug rubber 520 sleeved on the valve plug, wherein the valve plug 510 is axially provided with a valve plug hole 511. When the rubber plug is mounted, the spring 30 and the movable iron core 50 are mounted in the mounting cavity 2 formed by the sleeve part 210, and the movable iron core 50 axially pushed by the spring 30 enables the rubber plug 40 to be closely attached to the valve plug hole 511.
The comparison of the low-voltage starting test of the electromagnetic valve of the background technical scheme and the electromagnetic valve of the utility model comprises the following steps: the electromagnetic valve and the electromagnetic valve of the utility model are respectively 8 and installed on the same workbench, then the electromagnetic valve is electrified, the electrified voltage is gradually increased upwards from 70V, and when the electromagnetic valve is increased until the electromagnetic valve can be just started and stopped continuously, the voltage is recorded as the starting voltage required by the electromagnetic valve. The low voltage start test results are as follows:
according to the electromagnetic valve disclosed by the utility model, the sleeve part of the magnetic circuit part is prevented from being opened by improving the structure of the plastic package stator, so that the magnetic conductivity is influenced, and the low-voltage starting capability of the electromagnetic valve is improved.
Claims (5)
1. A plastic encapsulated stator comprising: the coil assembly (100) and use it to mould plastics water proof sleeve (200, 200') that forms for the inserts, coil assembly (100) are including having cylindricality coil former (110) in cavity, twine enameled wire (120) on the coil former, install in the downthehole magnetic conduction cover (130) of coil former cavity, cover locate the coil former outside and be connected yoke (140) with the magnetic conduction cover, its characterized in that: the magnetic conductive sleeve (130) is of a tubular structure formed by rolling strip metal, limiting structures for limiting the circumferential gap from increasing are arranged at two ends of the circumferential direction of the magnetic conductive sleeve, and the water blocking sleeve (200, 200 ') comprises sleeve parts (210, 210 ') which are injection-molded on the tubular inner wall surface of the magnetic conductive sleeve and flange parts (220, 220 ') which extend outwards radially from one end of the sleeve parts.
2. The plastic packaged stator according to claim 1, wherein: limiting structures for limiting the circumferential gap of the magnetic conduction sleeve (130) from increasing are arranged at two circumferential ends of the magnetic conduction sleeve (130), specifically, a dovetail groove (131) is formed in one circumferential end of the magnetic conduction sleeve (130), and a buckle (132) matched with the dovetail groove is arranged at the other circumferential end of the magnetic conduction sleeve.
3. The plastic packaged stator according to claim 1 or 2, characterized in that: the coil assembly further comprises plastic packages (300, 300 ') which are injection-molded on the coil assembly (100), wherein the enameled wire (120) is accommodated in an accommodating cavity (1, 1 ') which is formed by the coil frame (110), the magnet yoke (140) and the plastic packages (300, 300 ').
4. The plastic packaged stator according to claim 1, wherein: the sleeve part (210) is a hollow columnar body with two open ends, and a columnar plug (400) is welded at the opening of one end of the sleeve part (210) far away from the flange part.
5. The utility model provides a solenoid valve, includes valve gap (20), spring (30), is equipped with movable iron core (50) of rubber buffer (40), valve plug subassembly (500), its characterized in that: further comprising the plastic encapsulated stator of any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322199590.2U CN220505949U (en) | 2023-08-16 | 2023-08-16 | Plastic package stator and electromagnetic valve using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322199590.2U CN220505949U (en) | 2023-08-16 | 2023-08-16 | Plastic package stator and electromagnetic valve using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505949U true CN220505949U (en) | 2024-02-20 |
Family
ID=89864888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322199590.2U Active CN220505949U (en) | 2023-08-16 | 2023-08-16 | Plastic package stator and electromagnetic valve using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505949U (en) |
-
2023
- 2023-08-16 CN CN202322199590.2U patent/CN220505949U/en active Active
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| GR01 | Patent grant | ||
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