CN102261508B - Electromagnetic valve - Google Patents
Electromagnetic valve Download PDFInfo
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- CN102261508B CN102261508B CN201010192685.6A CN201010192685A CN102261508B CN 102261508 B CN102261508 B CN 102261508B CN 201010192685 A CN201010192685 A CN 201010192685A CN 102261508 B CN102261508 B CN 102261508B
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- skeleton
- magnet case
- solenoid valve
- coil
- plate
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Abstract
The invention discloses an electromagnetic valve, relating to an electromagnetic valve for controlling the supply and stop of a coolant in a refrigeration system. The electromagnetic valve of the invention comprises a framework and a magnetic conductor, the two of which are covered with an insulating material, wherein the inner and outer edges of the two end faces of the framework are provided with waterproof structures and projection portions are arranged on the two end faces of the framework, so that a gap portion for the filling of the insulating material is formed between the coil framework and the magnetic conductor; therefore, the insulation property of the electromagnetic valve is improved.
Description
Technical field
The present invention relates to refrigeration control technical field, specifically a kind of solenoid valve controlling refrigerant break-make.
Background technique
Heating,Ventilating and Air Conditioning (HVAC), refrigeration etc. relate in the system of temperature control, adjustment often can use solenoid valve, so that the break-make of control piping system medium.
Fig. 1 is a kind of typical structure schematic diagram of prior art solenoid valve, and solenoid valve comprises coil and valve body, and coil is enclosed within valve body sleeve pipe, fastening with locking nut, the energising of coil or opening or closing of power-off Controlling solenoid valve.The line solenoid valve ring framework of prior art is arranged in the receiving cavity of magnet case, and the both ends of the surface of skeleton are directly matched with the fitting surface of magnet case, and between skeleton both ends of the surface and magnet case fitting surface, naked thing is filled, and may cause infiltration like this.Sleeve outer on the boring ratio valve body that coil flux guide coordinates with valve body sleeve pipe is large, sleeve pipe thorough coil during installation, outside coil, and there is gap in the static iron core upper-end surface of valve body, therefore the contact reliability of magnet case and valve body can not ensure, and the gap of the magnetic circuit of solenoid valve is increased; Thus affect magnetic property and the performance of solenoid valve, in solenoid valve, grounding insert-pin is placed between skeleton and magnet case simultaneously, may exist during injection moulding between grounding insert-pin and magnet case and enter plastics and not conducting hidden danger, product is difficult to reach real ground connection object, may there is potential safety hazard when thunderbolt or electric leakage.
Summary of the invention
The technical problem to be solved in the present invention is the defect overcoming the existence of above-mentioned prior art, by to the improvement on the electromagnetic valve structure of prior art, to improve service behaviour and the water-proof performance of solenoid valve, make the use of solenoid valve more safe and reliable, the present invention adopts following scheme for this reason:
A kind of solenoid valve, comprise coil and valve body, described coil comprises magnet case, skeleton and the enameled cable winding be wound on described skeleton, described coil also comprises coated described magnet case, the encapsulated layer of skeleton and enameled cable winding, the both ends of the surface of the close described magnet case of described skeleton be respectively arranged with lug boss, the end face of described lug boss and the fitting surface towards coil rack of magnet case inconsistent and locate, thus formed the both ends of the surface of skeleton and magnet case towards coil rack fitting surface between clearance portion, described clearance portion fill by described encapsulated layer.
Preferably, the both ends of the surface of the close described magnet case of described skeleton be respectively arranged with at least one group of waterproof construction, described waterproof construction is arranged on the position of the relative biased outward of the both ends of the surface of described skeleton, and described encapsulated layer covers described waterproof construction and is coated on the both ends of the surface of described skeleton.The both sides of such waterproof construction have encapsulated layer to cover.
Preferably, described waterproof construction is the enclosed construction of the both ends of the surface along described skeleton.
Preferably, described waterproof construction comprises water tight well and the jut in sharp shape around described water tight well, and described water tight well and jut all form a closed structure.Here sharp shape refers to that the top of jut is relatively little, and its base portion is relatively large, if cross section is acute angle-shaped or relatively little trapezoid shaped etc.
Optionally, described lug boss is the multiple boss on two end faces of the close described magnet case being arranged on described skeleton, the end face of described boss and the fitting surface of described magnet case inconsistent.
Preferably, described boss is respectively more than three or four.
Preferably, described magnet case comprises the first plate-like portion of the static iron core near described valve body, described first plate-like portion is provided with a through hole, the through hole of described first plate-like portion is less than the endoporus of the skeleton of described coil, and the upper-end surface of the described fitting surface of the first plate-like portion and the static iron core of described valve body is inconsistent and locate.
Preferably, described magnet case also comprises second plate-like portion relative with described first plate-like portion, described second plate-like portion is provided with a through hole, and the internal diameter of the through hole of described second plate-like portion be the 1.2-4 of the through hole of described first plate-like portion doubly, more suitable 2-4 doubly between.
Preferably, described coil and described valve body are fixed by bolt member, and the static iron core of described valve body is provided with tapped hole, and described bolt member is closed by the through hole of the first plate-like portion of described magnet case and the corresponding threaded holes of described static iron core.
Preferably, described coil also comprises grounding insert-pin parts, and described grounding insert-pin parts fix by welding or crimping with described magnet case.
Preferably, described magnet case is the integrative-structure of drawing.
Solenoid valve of the present invention, by improving product structure and packaging technology, make to be provided with clearance portion between the both ends of the surface of coil rack and magnet case fitting surface, insulating wrapped thing is made to fill this clearance portion during coated encapsulated layer, thus increase the thickness of watertight insulation and the distance of infiltration, thus can slowly infiltrate along the junction plane of magnet case and skeleton by anti-sealing, reach the object improving water-proof performance; Coil is arranged on valve body simultaneously, is fitted in magnet case fitting surface and static iron core upper-end surface, the magnetic circuit gap of magnet case and valve body is reduced, can improve the performance of solenoid valve like this; Making grounding insert-pin parts reliably be fixed together by welding or crimp with magnet case in addition, making grounding insert-pin parts, magnet case, valve body form effective equipotentiality body, ensure solenoid valve reliable ground, improve the Safety performance of solenoid valve.And waterproof construction is set at the outward edge of the both ends of the surface of skeleton, the coated insulating material of the coil component of solenoid valve and the binding ability of skeleton can be improved, the infiltration of further anti-sealing, vapour, and improve water-proof performance.
Accompanying drawing illustrates:
Fig. 1: be the structural representation of the solenoid valve of prior art;
Fig. 2: be the structural representation of a kind of embodiment of solenoid valve of the present invention;
Fig. 3: be the structural representation of the valve body of Fig. 2 solenoid valve;
Fig. 4: be the structural representation of the skeleton of Fig. 2 solenoid valve;
The partial schematic diagram of Fig. 5: Fig. 4 skeleton waterproof construction part;
Fig. 6: be the right elevation of Fig. 4 skeleton;
Fig. 7: be the left view of Fig. 4 skeleton;
Fig. 8: the structural representation before the coil encapsulation layer for Fig. 2 solenoid valve is coated;
Fig. 9: be the structural representation of a kind of mode of execution of the grounding insert-pin parts in Fig. 8;
Figure 10: be the structural representation of coil after encapsulated layer is coated of Fig. 2 solenoid valve.
Symbol description in figure:
20-coil, 30-valve body, 40-bolt member;
21-skeleton, 23-magnet case, 24-enameled cable winding, 25-grounding insert-pin parts, 26-encapsulated layer;
211-water tight well, 212-boss, 221-clearance portion;
231-magnet case through hole, 232-magnet case fitting surface;
31-static iron core, 32-sleeve pipe, 311-static iron core upper-end surface, 312-tapped hole.
Embodiment
For making those skilled in the art can understand technical conceive of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Wherein, Fig. 2 is the structural representation of a kind of embodiment of solenoid valve of the present invention, and Fig. 3 is the structural representation of the valve body part of Fig. 2 solenoid valve.As shown in the figure, solenoid valve comprises valve body 30 and coil 20, and valve body comprises static iron core 31, and the upper-end surface 311 of static iron core is provided with tapped hole 312, and coil 20 and valve body 30 are fixed together by bolt member 40, and the tapped hole 312 of static iron core 31 matches with bolt member 40.Particularly, coil 20 is enclosed within the circular casing 32 of valve body 30, and make the fitting surface 232 of magnet case 31 fit with the upper-end surface 311 toward the outer side of the static iron core 31 of valve body 30 or substantially fit, and fixed with bolt member 40, bolt member 40 is stretched in the static iron core 31 of valve body 30 by the through hole 231 on the first relatively little plate-like portion of magnet case 23 and to be screwed with static iron core and fixing.As can be seen from the figure, magnet case 23 towards the end face of size much smaller than the static iron core 31 of valve body 30 arranging the through hole 231 of the centre of the first plate-like portion 233 of fitting surface 232 outside solenoid valve, faying surface is there is between the fitting surface 232 of such magnet case 31 and the upper-end surface 311 toward the outer side of the static iron core 31 of valve body 30, thus reduce the magnetic circuit gap of solenoid valve, the performance of solenoid valve can be improved and reduce the temperature rise of the coil of solenoid valve, the working life of solenoid valve can be extended.
The through hole 231 set by first plate-like portion 233 of the static iron core 31 of the close described valve body 30 of magnet case 23 is less than the endoporus 216 of the skeleton 21 of described coil 20, and the fitting surface 232 of described first plate-like portion 233 is inconsistent and locate with the upper-end surface 311 of the static iron core 31 of described valve body 30.
The size of the intermediate throughholes 235 towards second plate-like portion 234 solenoid valve inside relative with described first plate-like portion 233 of magnet case is then roughly the same with the endoporus 216 of coil rack 21, like this, when coil and valve body assemble, static iron core one end of valve body just loads from the larger endoporus side of coil, until the upper-end surface 311 of the static iron core 31 of coil is inconsistent with the magnet case fitting surface of the inner side of the first plate-like portion 233 of the magnet case 23 of coil.The internal diameter of the through hole 235 of the second plate-like portion 234 be through hole (231) internal diameter of described first plate-like portion (233) 1.2-4 doubly between, the internal diameter of the through hole 235 of the second more suitable plate-like portion 234 be through hole (231) internal diameter of described first plate-like portion (233) 2-4 doubly between.
In addition, in order to make water or vapour can not infiltrate valve body 30 with the gap of coil 20, can also seal with O-ring seals between coil 20 and valve body sleeve pipe, between bolt member 40 and coil 20, O shape also can be adopted to enclose seal further; Wherein for ensureing sealing effect, the sealing of O shape circle is set to the seal form of constant compression amount.In addition, O RunddichtringO can also be arranged in the endoporus of coil component.
The skeleton 21 of its coil 20 is as shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, wherein Fig. 4 is the structural representation of the skeleton of Fig. 2 solenoid valve, Fig. 5 is the partial schematic diagram of Fig. 4 skeleton waterproof construction part, and Fig. 6 is the right elevation of Fig. 4 skeleton, and Fig. 7 is the left view of Fig. 4 skeleton.Skeleton 21 is substantially in circular, the middle space for holding winding, wherein side stretches out in edge shape portion, between the both ends of the surface and magnet case 23 of skeleton, insulating material also can be had to flow into make coil 20 when coated insulation material, outside lug boss is respectively arranged with in the both ends of the surface of skeleton, wherein lug boss is the boss 212 of four roundlet columns respectively in the present embodiment, and boss also can be arranged to 3 in addition; Or also can adopt the hollow cylinder that other structure is as overall near skeleton intermediate throughholes position, or the combination of the local of a hollow cylinder is as combination of 2 or 3 circular arcs etc., also can reach object of the present invention.As figure, the end face of boss, higher than skeleton both ends of the surface, makes boss end face match with magnet case fitting surface 232, is formed with clearance portion 221 between skeleton both ends of the surface and magnet case fitting surface 232 during assembling.Like this, between two end faces 210 of skeleton 21 and the fitting surface 232 of magnet case, be just present in clearance portion 221, the inflow of insulating material when being beneficial to coated.Can merge better and seal between insulating material and skeleton during in order to make coated, in the present embodiment, a waterproof construction is provided with respectively in the outside of two end faces of skeleton, particularly, waterproof construction comprises the jut 213 that water tight well 211 and cross section are sharp shape, when coated insulation material, the insulating material of high temperature can flow into water tight well 211 and the sharp shape part local of jut 213 is merged mutually with the insulating material of high temperature, thus can reach the effect of insulation and waterproof well.In order to the insulation and water-proof performance that make whole magnet case and skeleton improve, water tight well 211 and jut 213 are the enclosed constructions in roughly ring-type in the present embodiment.
In order to make insulating property better, several waterproof construction can also be set at two of a skeleton end face more, as in figure, also be provided with a waterproof construction 214 in the relative centre side of skeleton end face; Certainly at other position, also can also can have more than 3, but when arranging multiple, insulative water-proof performance can be better, but certain influence can be brought to manufacture cost.
In addition, good location can be had when the insulating material of coated outside and between skeleton to make magnet case, a wherein end face of skeleton is also provided with a positioning part 215, positioning part is roughly in thin-and-long in the present embodiment, in addition, positioning part also can be divided into the positioning part of the combination shape of multiple composition; And positioning part 215 is positioned at the relative inner of waterproof construction in the present embodiment.
Fig. 8 be the coil encapsulation layer of Fig. 2 solenoid valve coated before structural representation, Fig. 9 is the structural representation of a kind of mode of execution of grounding insert-pin parts in Fig. 8, and Figure 10 is the structural representation of Fig. 2 solenoid valve after coil encapsulated layer is coated.As shown in the figure, coil 20 comprises skeleton 21, is wound on the enameled cable winding 24 of annular space on described skeleton, enameled cable winding 24 is drawn by two inserted sheets, coil completes at backbone winding painting envelope curve winding and is connected after inserted sheet by enameled cable the end of a thread in addition, refill and join magnet case 23, then by welding or crimp the grounding insert-pin parts 25 connecting and be connected with magnet case.In the present embodiment, grounding insert-pin parts 25 comprise a fixed hole 252, and form soldering point 251 at fixed hole 252 and magnet case 23 to be connected with magnet case 23 conducting by welding, grounding insert-pin parts 25 also can adopt with magnet case 23 mode crimped in addition; And then on the coil component installing magnet case coated encapsulated layer 26, encapsulated layer 26 carry out coated while make coating be full of clearance portion 221, the thickness of such increase watertight insulation and length, and coating can be effectively combined with skeleton, thus anti-sealing slowly infiltrates along the junction plane of magnet case and skeleton, to reach the object improving waterproof.Then coil 20 is assembled with valve body 30 phase and is fixed by bolt member 40.
The assembly process of coil 20 is simply described below:
1, make skeleton, skeleton both ends of the surface are provided with waterproof construction and lug boss;
2, coil winding: coiling enameled cable winding on skeleton;
3, press-fit two power supply inserted sheets, and two of enameled cable the end of a thread and two power supply inserted sheets are reliably connected as welded;
4, magnet case is filled: the winding welded and magnet case are assembled;
5, grounding insert-pin parts riveted or be welded on magnet case;
6, the coil winding parts assembled are carried out coating and injection moulding.
In the present invention, the structure of the structure of valve body 30 compared with prior art static iron core 31 is distinguished to some extent, and other structure is substantially similar, no longer repeats here.
Content described in this specification embodiment is just enumerated the typical case that the present invention conceives way of realization, and protection scope of the present invention should not be regarded as being only limitted to the concrete form that embodiment states, comprises other similar form yet.The various orientation such as inside and outside, upper and lower mentioned in this specification in addition is just quoted for convenience of description, should not be considered limitation of the present invention.
Claims (10)
1. a solenoid valve, comprise coil (20) and valve body (30), described coil (20) comprises magnet case (23), skeleton (21) and the enameled cable winding (24) be wound on described skeleton (21), described coil (20) also comprises coated described magnet case (23), the encapsulated layer (26) of skeleton (21) and enameled cable winding (24), it is characterized in that the both ends of the surface of the close described magnet case (23) of described skeleton (21) are respectively arranged with lug boss, the fitting surface towards coil rack (232) of the end face of described lug boss and magnet case (23) is inconsistent and locate, thus the clearance portion (221) formed between the both ends of the surface of skeleton (21) and the fitting surface towards coil rack (232) of magnet case (23), described boss is in described clearance portion (221), described clearance portion (221) fill by described encapsulated layer (26), described lug boss surround by described encapsulated layer (26).
2. solenoid valve according to claim 1, it is characterized in that: the both ends of the surface of the close described magnet case (23) of described skeleton (21) are also respectively arranged with at least one group of waterproof construction, described waterproof construction is arranged on the position of the relative biased outward of the both ends of the surface of described skeleton (21), and described encapsulated layer (26) covers described waterproof construction and is coated on the both ends of the surface of described skeleton (21).
3. solenoid valve according to claim 2, is characterized in that: described waterproof construction forms the enclosed construction along the both ends of the surface of described skeleton.
4. solenoid valve according to claim 2, it is characterized in that: described waterproof construction comprises water tight well (211) and the jut (213) in sharp shape around described water tight well (211), and described water tight well (211) and jut (213) all form a closed structure.
5. according to claim 1-4 wherein arbitrary described solenoid valve, it is characterized in that: described lug boss is the multiple boss on two end faces of the close described magnet case being arranged on described skeleton, the end face of described boss and the fitting surface of described magnet case (23) inconsistent.
6. solenoid valve according to claim 5, is characterized in that: described boss is respectively more than three or four.
7. according to claim 1-4 wherein arbitrary described solenoid valve, it is characterized in that: described magnet case (23) comprises first plate-like portion (233) of the static iron core (31) near described valve body (30), described first plate-like portion (233) is provided with a through hole (231), the through hole (231) of described first plate-like portion (233) is less than the endoporus of the skeleton (21) of described coil (20), and the upper-end surface (311) of the fitting surface (232) of described first plate-like portion (233) and the static iron core (31) of described valve body (30) is inconsistent and locate.
8. solenoid valve according to claim 7, it is characterized in that: described magnet case (23) also comprises second plate-like portion (234) relative with described first plate-like portion (233), described second plate-like portion (234) is provided with a through hole (235), and the internal diameter of the through hole (235) of described second plate-like portion (234) is 1.2-4 times of the through hole (231) of described first plate-like portion (233).
9. solenoid valve according to claim 7, it is characterized in that: described coil (20) is fixed by bolt member (40) with described valve body (30), the static iron core (31) of described valve body (30) is provided with tapped hole (312), and described bolt member (40) is matched with the tapped hole (312) of described static iron core (31) by the through hole (231) of first plate-like portion (233) of described magnet case (23).
10. according to claim 1-4 wherein arbitrary described solenoid valve, it is characterized in that: described coil (20) also comprises grounding insert-pin parts (25), described grounding insert-pin parts (25) fix by welding or crimping with described magnet case (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010192685.6A CN102261508B (en) | 2010-05-27 | 2010-05-27 | Electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010192685.6A CN102261508B (en) | 2010-05-27 | 2010-05-27 | Electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102261508A CN102261508A (en) | 2011-11-30 |
| CN102261508B true CN102261508B (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010192685.6A Active CN102261508B (en) | 2010-05-27 | 2010-05-27 | Electromagnetic valve |
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| Country | Link |
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| CN (1) | CN102261508B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185162B (en) * | 2011-12-29 | 2016-07-06 | 浙江三花股份有限公司 | Electromagnetic valve and manufacture method thereof and screw assembly |
| CN103174551A (en) * | 2013-03-28 | 2013-06-26 | 无锡隆盛科技股份有限公司 | Built-in coil structure of motor-driven exhaust gas recirculation (EGR) valve of gasoline engine |
| CN104132177A (en) * | 2014-07-23 | 2014-11-05 | 成都气海机电制造有限公司 | Miniature solenoid valve |
| CN105202251B (en) * | 2015-10-23 | 2017-07-28 | 宁波星宇国均汽车电磁阀有限公司 | A kind of two-bit triplet switch electromagnetic valve |
| CN109973705B (en) * | 2017-12-27 | 2021-03-09 | 浙江三花汽车零部件有限公司 | Electromagnetic valve |
| CN108847330A (en) * | 2018-09-06 | 2018-11-20 | 苏州胜璟电磁科技有限公司 | A kind of electromagnet coil skeleton |
| CN110555253A (en) * | 2019-08-26 | 2019-12-10 | 华南理工大学 | method for calculating temperature rise of solenoid valve coil in automobile braking system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2791413Y (en) * | 2004-12-14 | 2006-06-28 | 浙江三花制冷集团有限公司 | Frame of electromagnetic coil |
| CN201284863Y (en) * | 2008-11-06 | 2009-08-05 | 浙江鸿森机械有限公司 | Solenoid valve for refrigerating device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59222687A (en) * | 1983-06-01 | 1984-12-14 | Nippon Denso Co Ltd | Solenoid valve and manufacturing method thereof |
| JPS6154571U (en) * | 1984-08-30 | 1986-04-12 | ||
| JPH043452Y2 (en) * | 1984-12-29 | 1992-02-04 |
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2010
- 2010-05-27 CN CN201010192685.6A patent/CN102261508B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2791413Y (en) * | 2004-12-14 | 2006-06-28 | 浙江三花制冷集团有限公司 | Frame of electromagnetic coil |
| CN201284863Y (en) * | 2008-11-06 | 2009-08-05 | 浙江鸿森机械有限公司 | Solenoid valve for refrigerating device |
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| Publication number | Publication date |
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| CN102261508A (en) | 2011-11-30 |
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Effective date of registration: 20160805 Address after: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Patentee after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Liquan village of Zhejiang County in Xinchang Province town under Patentee before: ZHEJIANG SANHUA Co.,Ltd. |
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Effective date of registration: 20220818 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |
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