CN203273001U - Electromagnetic coil of electromagnetic water inlet valve - Google Patents
Electromagnetic coil of electromagnetic water inlet valve Download PDFInfo
- Publication number
- CN203273001U CN203273001U CN 201320261459 CN201320261459U CN203273001U CN 203273001 U CN203273001 U CN 203273001U CN 201320261459 CN201320261459 CN 201320261459 CN 201320261459 U CN201320261459 U CN 201320261459U CN 203273001 U CN203273001 U CN 203273001U
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- electromagnetic
- water inlet
- coil
- inlet valve
- electromagnetic coil
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Abstract
The utility model provides an electromagnetic coil of an electromagnetic water inlet valve. The electromagnetic coil of the electromagnetic water inlet valve comprises a coil bobbin, enameled wires, connecting terminals and an outer shell, wherein terminal protruding structures are arranged on the connecting terminals, an insulating cover is connected to a terminal connecting portion of the coil bobbin in an inserting mode, an inserting groove is formed in the terminal connecting portion of the coil bobbin, a plug matched with the inserting groove is arranged on the contact face between the insulating cover and the terminal connecting portion of the coil bobbin, and two insulating concave holes which are matched with the terminal protruding structures are further formed in the contact face so that the insulating cover can cover the terminal protruding structures and part of the connecting terminals. A full plastic package body which is made of a new material BMC in an injection molding mode, wherein the BMC is a bulk molding compound, and is usually called unsaturated polyester bulk molding compound in China. The electromagnetic coil of the electromagnetic water inlet valve has the advantages of preventing the phenomenon that insulativity between the connecting terminals is reduced due to aging of the outer shell of the electromagnetic coil, ensuring the advantages of being firm in welding and saving materials in the prior art, reducing the probability of faults, and prolonging the service life.
Description
Technical field
The utility model belongs to the electromagnetic water inlet valve field, relates to a kind of electromagnetic coil of electromagnetic water inlet valve.
Background technique
All be provided with electromagnetic coil on electromagnetic water inlet valve used in everyday.During the electromagnetic coil no electric circuit, iron core is pressed on the diaphragm plate center hole, and in back pressure chamber, hydraulic pressure is large, and the barrier film pressurized seals the water outlet on valve seat.After the electromagnetic coil energising, iron core is picked up, and the water in back pressure chamber flows out through the diaphragm plate center hole, and in back pressure chamber, hydraulic pressure reduces.Therefore barrier film moves on, exposes the water outlet on valve seat, and inlet valve is opened thus.
The electromagnetic coil of electromagnetic water inlet valve is the vitals of electromagnetic water inlet valve, and electromagnetic coil directly provides power for the switching of inlet valve.Be wound with enameled cable on coil rack in electromagnetic coil, the two ends of enameled cable winding are welded on respectively on two splicing ears.
As shown in Figure 5, a kind of electromagnetic coil to be arranged now in order reducing costs, to reduce welding consumables and use the splicing ear with terminal protruding structure.The terminal protruding structure protrudes from the surface of splicing ear, has in conjunction with firmly during with the welding of enameled cable end, saves the advantages such as welding consumables.But, because the coil case envelope is moulded employing phenolic moulding powder or common engineering plastics, as ABS, PP etc.The electric insulation grade of shell is bad, and physical life is short, easily seeps water after use a period of time, causes the fault of electromagnetic coil short circuit.
The model utility content
The utility model provides a kind of electromagnetic coil of electromagnetic water inlet valve, and purpose is the firm welding that had both guaranteed prior art, the advantage of economical with materials, and further reinforced insulation, reduce fault again, increases the service life.
To achieve these goals, the technological scheme taked of the utility model is:
The electromagnetic coil of described electromagnetic water inlet valve, comprise coil rack, enameled cable, splicing ear and shell, has the terminal protruding structure on described splicing ear, described splicing ear intercalation is at the terminal connection part of described coil rack, described electromagnetic coil also comprises insulating lid, described insulating lid is plugged on described terminal connection part, covers described terminal protruding structure; The surface of contact of described insulating lid and described terminal connection part is provided with two insulation shrinkage pools that are complementary with described terminal protruding structure.
Described surface of contact is provided with plug, and described terminal connection part is provided with the slot that is complementary with described plug.
Be provided with two insulating spacers on described coil rack, described insulating spacer is L shaped; It is inboard that described insulating spacer is positioned at described splicing ear, and described insulating spacer contacts with inner side surface with the upper surface of described splicing ear.
Described shell is the injection molded Full-plastics sealed body of BMC material.
Adopt technique scheme, prevented that electromagnetic coil from reducing the insulating properties between splicing ear because shell is aging.Both guaranteed the firm welding of prior art, the advantage of economical with materials has reduced again the probability of fault, has extended working life.
Description of drawings
Fig. 1 is the structural representation of the electromagnetic coil of the utility model electromagnetic water inlet valve;
Fig. 2 is the structural representation of the terminal connection part of structure coil skeleton shown in Figure 1;
Fig. 3 is the plan view after structure shown in Figure 2 is removed insulating lid;
Fig. 4 is the worm's eye view of the insulating lid of structure shown in Figure 1;
Fig. 5 is the structural representation of the electromagnetic coil described in background technique.
Being labeled as in figure:
1, coil rack; 2, enameled cable; 3, splicing ear; 4, shell; 5, terminal protruding structure; 6, insulating spacer; 7, slot; 8, insulating lid; 9, plug; 10, insulation shrinkage pool.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, embodiment of the present utility model is described in further detail, and to help those skilled in the art, inventive concept of the present utility model, technological scheme is had more complete, accurate and deep understanding.
The utility model provides a kind of electromagnetic coil of electromagnetic water inlet valve.As shown in Figure 1, electromagnetic coil comprises coil rack 1, enameled cable 2, splicing ear 3 and shell 4.Coil rack 1 is the integral structure that thermoplastic resin is made, and enameled cable 2 is on coil rack 1.The terminal connection part of coil rack 1 has groove, and splicing ear 3 is plugged on terminal connection part by groove.
To shown in Figure 4, has terminal protruding structure 5 as Fig. 2 on splicing ear 3.The two ends of enameled cable 2 are welded on respectively on two terminal protruding structures 5, make like this enameled cable 2 enough firm with the combination of splicing ear 3, have also saved welding consumables.For reinforced insulation, be provided with two insulating spacers 6 at the groove position, lean against respectively the inboard of two splicing ears 3.Insulating spacer 6 is L shaped, the upper surface of a face contact splicing ear 3, the inner side surface of another face contact splicing ear 3.If but the aging insulating properties that causes of shell 4 descends, the terminal protruding structure 5 that exposes outside is easy to cause short circuit.
For preventing the problems referred to above, be plugged with an insulating lid 8 at terminal connection part.Insulating lid 8 is positioned at the same face with terminal protruding structure 5.Slot 7 is arranged on terminal connection part, with the plug 9 of slot 7 coupling on the surface of contact of insulating lid 8 and terminal connection part.Also have two insulation shrinkage pools 10 that are complementary with terminal protruding structure 5 on this surface of contact, make insulating lid 8 can cover terminal protruding structure 5 and part splicing ear 3.Even shell 4 insulating properties of plastic packaging descend like this, electromagnetic coil still can use a period of time, has extended its working life.
Conventional enclosure 4 adopts phenolic moulding powder or common engineering plastics, as ABS or polypropylene, has injection molding technique loaded down with trivial details, and electric insulating quality is poor, the shortcoming that physical life is short.The utility model adopts by new material BMC(BMC, the domestic unsaturated polyester BMC that often is called) injection molded Full-plastics sealed body.The main raw material of BMC is by the GF(short glass fiber), the UP(unsaturated resin), the MD(filler-calcium carbonate) and the material bulk prepreg of various additive through fully mixing.Have lightweight, high-strength, insulation, corrosion-resistant, utilization ratio is high, molding rate is high, constant product quality, the advantage such as easy to operate.The Full-plastics sealed body directly uses the BMC injection machine to process, and has improved productivity effect.The electric insulation grade can reach the E level, and physical life reaches more than 50000 times, and scrappage is reduced to below 0.1%.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the concrete realization of the utility model is not subject to the restrictions described above; as long as the various improvement of having adopted method design of the present utility model and technological scheme to carry out; or directly apply to other occasions without improvement, all in protection domain of the present utility model.
Claims (4)
1. the electromagnetic coil of an electromagnetic water inlet valve, comprise coil rack (1), enameled cable (2), splicing ear (3) and shell (4), has terminal protruding structure (5) on described splicing ear (3), described splicing ear (3) intercalation is at the terminal connection part of described coil rack (1), it is characterized in that: described electromagnetic coil also comprises insulating lid (8), described insulating lid (8) is plugged on described terminal connection part, covers described terminal protruding structure (5); Described insulating lid (8) is provided with the surface of contact of described terminal connection part two insulation shrinkage pools (10) that are complementary with described terminal protruding structure (5).
2. the electromagnetic coil of electromagnetic water inlet valve according to claim 1, it is characterized in that: described surface of contact is provided with plug (9), and described terminal connection part is provided with the slot (7) that is complementary with described plug (9).
3. the electromagnetic coil of electromagnetic water inlet valve according to claim 2 is characterized in that: be provided with two insulating spacers (6) on described coil rack (1), described insulating spacer (6) is L shaped; Described insulating spacer (6) is positioned at described splicing ear (3) inboard, and described insulating spacer (6) contacts with inner side surface with the upper surface of described splicing ear (3).
4. the electromagnetic coil of according to claim 1,2 or 3 described electromagnetic water inlet valves, it is characterized in that: described shell (4) is the injection molded Full-plastics sealed body of BMC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261459 CN203273001U (en) | 2013-05-14 | 2013-05-14 | Electromagnetic coil of electromagnetic water inlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261459 CN203273001U (en) | 2013-05-14 | 2013-05-14 | Electromagnetic coil of electromagnetic water inlet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203273001U true CN203273001U (en) | 2013-11-06 |
Family
ID=49503413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320261459 Expired - Lifetime CN203273001U (en) | 2013-05-14 | 2013-05-14 | Electromagnetic coil of electromagnetic water inlet valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203273001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318083A (en) * | 2014-07-31 | 2016-02-10 | 株式会社鹭宫制作所 | Stator coil of electric valve and electric valve having same |
| CN108662151A (en) * | 2017-03-28 | 2018-10-16 | 浙江三花智能控制股份有限公司 | Electric expansion valve and refrigeration system with it |
-
2013
- 2013-05-14 CN CN 201320261459 patent/CN203273001U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318083A (en) * | 2014-07-31 | 2016-02-10 | 株式会社鹭宫制作所 | Stator coil of electric valve and electric valve having same |
| CN108662151A (en) * | 2017-03-28 | 2018-10-16 | 浙江三花智能控制股份有限公司 | Electric expansion valve and refrigeration system with it |
| CN108662151B (en) * | 2017-03-28 | 2022-05-17 | 浙江三花智能控制股份有限公司 | Electronic expansion valve and refrigeration system with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |