CN104064404B - Electromagnetic relay coil support and manufacture method thereof - Google Patents
Electromagnetic relay coil support and manufacture method thereof Download PDFInfo
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- CN104064404B CN104064404B CN201410205275.9A CN201410205275A CN104064404B CN 104064404 B CN104064404 B CN 104064404B CN 201410205275 A CN201410205275 A CN 201410205275A CN 104064404 B CN104064404 B CN 104064404B
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- mold insert
- mould mold
- insert
- electromagnetic relay
- thimble
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Abstract
The invention discloses an electromagnetic relay coil support and a manufacture method thereof. The coil support comprises a coil support body in which a terminal hole for mounting a coil terminal is arranged; the terminal hole is of a half-blind hole structure which is composed of a cylindrical main hole, a cylindrical surface-layer entity and at least two side holes, wherein the surface-layer entity and the main hole are identical in diameter, the surface-layer entity is connected to one end of the main hole to seal the opening of the end of the main hole, the at least side holes surround the surface-layer entity and contact the same, and one end of each side hole communicates with external while the other end of each side hole is connected to the periphery of the main hole to communicate with the main hole. According to the electromagnetic relay coil support, relative dimensional accuracy of the coil support terminal hole can be improved, and the disadvantages that, in a plug-in mounting process, the coil terminal generates flocks which may enter the relay to cause pollution is avoided..
Description
Technical field
The present invention relates to a kind of electromagnetic relay, more particularly to a kind of can plug-in mounting coil terminals electromagnetic relay coil
Frame and preparation method thereof.
Background technology
Currently, with the raising of living standards of the people, the family such as colour TV, air-conditioning, electric refrigerator, washing machine, water heater, soy bean milk making machine
The application of electrical appliance is more prevalent, and has the trend progressively promoted to the region such as samll cities and towns and rural area；External in North America, West Europe etc.
Developed country, in addition to above-mentioned general household electrical appliance, the top grade household electric such as automatic dish-washing machine, electric heat mat, electronic masseur
Device has also stepped into common family substantially.
Constantly improve with present science and technology, household electrical appliances manufacturer is improve production efficiency, carries out automatization to electronic devices and components
Mechanical hand assembles, and the components and parts such as relay are inserted in circuit board, but because the presence of relay pin production process is necessarily askew
Tiltedly, manufacturer when being assembled, some relays just can not be good is inserted in circuit board, cause failure welding, serious
Whole circuit board is scrapped.
The terminal hole of the bobbin of existing product has through-hole structure and two kinds of blind hole structure, and corresponding is using two kinds of moulds
Structure is being made.
Fig. 1 is the Mold Making structural representation of prior art bobbin through-hole structure, and Fig. 2 leads to for prior art bobbin
The Mold Making partial schematic sectional view of pore structure, Fig. 3 is the coil holder structure schematic diagram of prior art through-hole structure, and Fig. 4 is
The coil holder structure cross-sectional schematic of prior art through-hole structure, Fig. 5 is the A portion enlarged diagram in Fig. 4.As Fig. 1 to Fig. 5 institute
Show, making during bobbin through-hole structure is using upper mould mold insert 11 and lower mould mold insert 12, lower mould mold insert 12
Fuse 121 is in the recess directly push up upper mould mold insert 11, is used for assembling the terminal hole 13 of coil terminals in bobbin 10
For through-hole structure, this structural termination relative position dimensional accuracy is high, but because terminal hole 13 is through hole, in coil terminals plug-in mounting
During easily produce soft flocks, cause relay internal medium to pollute, cause product to be not turned on losing efficacy.
Fig. 6 is the Mold Making structural representation of prior art bobbin blind hole structure, and Fig. 7 is that prior art bobbin is blind
The Mold Making partial schematic sectional view of pore structure, Fig. 8 is the coil holder structure schematic diagram of prior art blind hole structure, and Fig. 9 is
The coil holder structure cross-sectional schematic of prior art blind hole structure, Figure 10 is the B portion enlarged diagram in Fig. 9.As Fig. 6 to Figure 10
Shown, making during bobbin blind hole structure is using upper mould mold insert 21 and lower mould mold insert 22, lower mould mold insert 22
Fuse 221 there is no top in the recess of upper mould mold insert 21, be used for assembling the terminal hole 23 of coil terminals in bobbin 20
For total blindness's pore structure, because the fuse 221 of mould does not position completely, in injection moulding process, fuse 221 easily causes this structure
Crooked, lead to the terminal hole 23 of bobbin to misplace, after terminal hole 23 loads coil terminals, coil terminals relative size precision is low,
Lead to relay finished product pin crooked, manufacturer causes failure welding so that circuit board is scrapped when using.
Content of the invention
It is an object of the invention to overcoming the deficiency of prior art, provide a kind of electromagnetic relay coil frame and its making side
Method, can improve the relative size precision of bobbin terminal hole, be avoided that coil terminals produce soft flocks during plug-in mounting and enter again
Enter the drawbacks of pollute inside relay.
The technical solution adopted for the present invention to solve the technical problems is：A kind of electromagnetic relay coil frame, including coil
Frame body, is provided with the terminal hole for installing coil terminals in bobbin body, and described terminal hole is half-blindness pore structure.
Described half-blindness pore structure is by the main aperture of cylindrical shape, the top layer entity of cylindrical shape and at least lateral opening structure of two
Become, described top layer entity is identical with the diameter of described main aperture, and top layer entity is connected to one end of main aperture to close being somebody's turn to do of main aperture
End opening, described at least two lateral opening is looped around the periphery of described top layer entity and is connected with the periphery of described top layer entity
Touch, lateral opening one end is communicated with outside, the lateral opening other end is connected with the periphery of main aperture to be made lateral opening to be connected with main aperture.
The lateral opening periphery being looped around described top layer entity in uniform shape of described at least two.
Described half-blindness pore structure is mutually to inlaying and adopt injection mo(u)lding by upper mould mold insert and lower mould mold insert
Mode is made, and the upper end of this lower mould mold insert is the thimble insert structure of prior art, under this upper mould mold insert
End be provided with least two from bottom surface extend downwardly and side face that described thimble insert structure can be held tightly claw, when under mould
When mould mold insert is matched with upper mould mold insert, the side face of thimble insert structure is contacted with claw, the top of thimble insert structure
Face is provided with preset gap with the bottom surface of upper mould mold insert；After injection mo(u)lding, formed described lateral opening at claw, gap location is formed
Described top layer entity.
Described lateral opening be four.
Described lateral opening be three.
Described lateral opening be two.
A kind of manufacture method of electromagnetic relay coil frame, including：
Select to make upper mould mold insert and the lower mould mold insert of terminal hole, the upper end of lower mould mold insert is existing skill
The thimble insert structure of art, the lower end of upper mould mold insert is provided with least two and can hold described top tightly from what bottom surface extended downwardly
The jaw structure of the side face of pin insert structure；
During the mounting of bobbin unitary mould, simultaneously by the lower end of upper mould mold insert and lower mould mold insert
Upper end is set in together, makes the side face in thimble insert structure for the jaw structure holding of upper mould mold insert, and thimble insert structure
Top surface and the bottom surface of upper mould mold insert between retain certain interval；
In bobbin unitary mould injection moulding process, the matching part to upper mould mold insert and lower mould mold insert simultaneously
Carry out injection process, make on injected plastics material coating mould the matching part of mould mold insert and lower mould mold insert and filling described between
Gap；
After molding, when removing bobbin unitary mould, also remove described upper mould mold insert and lower mould mold insert, obtain
To bobbin.
Described jaw structure adopts four, and four jaw structures are evenly distributed on the periphery of thimble insert structure.
Described jaw structure adopts three, and three jaw structures are evenly distributed on the periphery of thimble insert structure.
Described jaw structure adopts two, and two jaw structures are evenly distributed on the periphery of thimble insert structure.
A kind of electromagnetic relay coil frame of the present invention and preparation method thereof, combines prior art through-hole structure bobbin
With the advantage of blind hole structure bobbin, using half-blindness pore structure, lower mould mold insert is using conventional thimble for bobbin terminal hole
Insert structure, upper mould mold insert adopts jaw structure, with the cooperation of thimble mold insert, holds thimble mold insert tightly, realizes the half of bobbin
Blind hole designs.When upper mould mold insert and lower mould mold insert coordinate, do not contact between mold insert, leave certain interval, by four
The claw side in week is positioned, and so in injection mo(u)lding, gap can be formed half-blind hole by filling plastic, coil top surface.Pawl
Minor structure can be not limited to concrete shape, can carry out different designs according to structure, the quantity of jaw structure should be at least
Two, such as two pawls, three-jaw, four paws or more multijaw, all can achieve and effectively position, but a pawl cannot be realized effectively positioning, excellent
Choosing is three-jaw and four paws.Such half-blind hole designs molding, and dimensional accuracy is high, simultaneously during coil terminals plug-in mounting, produces
Raw soft flocks all remains in terminal in the hole, soft flocks will be caused to drop out because of being used in turn of product, cause interiors of products environment
Pollution, leads to relay failure.
Compared with prior art, the invention has the beneficial effects as follows：
1st, because the terminal hole of the present invention is half-blindness pore structure, this half-blindness pore structure is by under upper mould mold insert and mould
Mould mold insert is mutually made to edge and using injection molding, and the upper end of this lower mould mold insert is the thimble of prior art
Insert structure, the lower end of this upper mould mold insert be provided with least two from top surface stretch out and described thimble edge can be held tightly
The claw of the side face of part structure, in such manner, it is possible to realize effective positioning of thimble insert structure (i.e. fuse), thus improving terminal hole
Relative size precision, preferably resolve prior art relay coil pin skew problem；
2nd, because the terminal hole of the present invention is half-blindness pore structure, half-blindness pore structure is by the main aperture of cylindrical shape, cylindrical shape
Top layer entity and at least lateral opening composition of two, the advantage remaining prior art blind hole using top layer entity, make plug-in mounting line
The soft flocks that circle terminal produces is stayed in bobbin terminal hole, thus reducing the pollution of relay internal medium；
3rd, mould structure ensures precision, coil holder easy to manufacture, dimensionally stable.
Below in conjunction with drawings and Examples, the present invention is described in further detail；But a kind of electromagnetic relay of the present invention
Bobbin and preparation method thereof is not limited to embodiment.
Brief description
Fig. 1 is the Mold Making structural representation of prior art bobbin through-hole structure；
Fig. 2 is the Mold Making partial schematic sectional view of prior art bobbin through-hole structure；
Fig. 3 is the coil holder structure schematic diagram of prior art through-hole structure；
Fig. 4 is the coil holder structure cross-sectional schematic of prior art through-hole structure；
Fig. 5 is the A portion enlarged diagram in Fig. 4；
Fig. 6 is the Mold Making structural representation of prior art bobbin blind hole structure；
Fig. 7 is the Mold Making partial schematic sectional view of prior art bobbin blind hole structure；
Fig. 8 is the coil holder structure schematic diagram of prior art blind hole structure；
Fig. 9 is the coil holder structure cross-sectional schematic of prior art blind hole structure；
Figure 10 is the B portion enlarged diagram in Fig. 9；
Figure 11 is the Mold Making structural representation of the bobbin half-blindness pore structure of the present invention；
Figure 12 is the structural representation one of the bobbin of the present invention；
Figure 13 is the structural representation two of the bobbin of the present invention；
Figure 14 is the sectional view along the line C-C in Figure 13；
Figure 15 is the D portion enlarged diagram in Figure 14；
Figure 16 is the upper mould mold insert of the present invention and the cooperation schematic diagram of lower mould mold insert；
Figure 17 is the E portion enlarged diagram in Figure 16；
Figure 18 is the structural representation of the upper mould mold insert of the present invention.
Specific embodiment
Embodiment
Referring to shown in Figure 11 to Figure 18, a kind of electromagnetic relay coil frame of the present invention, including bobbin body 30, online
It is provided with the terminal hole 3 for installing coil terminals, described terminal hole 3 is half-blindness pore structure in coil body.
Described half-blindness pore structure is by the main aperture 31 of cylindrical shape, the top layer entity 32 of cylindrical shape and four lateral opening 33 structures
Become, described top layer entity 32 is identical with the diameter of described main aperture 31, and top layer entity 32 is connected to one end of main aperture 31 to close
This end opening of main aperture, described four lateral opening 33 peripheries being looped around described top layer entity 32 week with described top layer entity 32
While contacting, lateral opening 33 one end is communicated with outside, and lateral opening 33 other end is connected with the periphery of main aperture 31 makes lateral opening 33 and master
Hole 31 is connected.
Described four lateral opening 33 peripheries being looped around described top layer entity 32 in uniform shape.
Described half-blindness pore structure 3 is mutually to edge and using being molded into by upper mould mold insert 4 and lower mould mold insert 5
Type mode is made, and the upper end of this lower mould mold insert 5 is the thimble insert structure 51 of prior art, this upper mould mold insert
4 lower end be provided with four from bottom surface extend downwardly and side face that described thimble insert structure can be held tightly claw 41, work as mould
When the lower mould mold insert 5 of tool is matched with upper mould mold insert 4, the side face of thimble insert structure 51 is contacted with four claws 41, top
The top surface of pin insert structure 51 is provided with preset gap 50 with the bottom surface of upper mould mold insert 4；After injection mo(u)lding, shape at claw 41
Become described lateral opening 33, at gap 50, form described top layer entity 32.
The lateral opening of the present embodiment is four, it is of course also possible to be two, three or more.
A kind of manufacture method of the electromagnetic relay coil frame of the present invention, including：
Select to make upper mould mold insert 4 and the lower mould mold insert 5 of terminal hole, the upper end of lower mould mold insert 5 is existing
Have a thimble insert structure 51 of technology, the lower end of upper mould mold insert be provided with four described from can holding tightly of extending downwardly of bottom surface
The jaw structure 41 of the side face of thimble insert structure；
During the mounting of bobbin unitary mould, simultaneously by the lower end of upper mould mold insert 4 and lower mould mold insert 5
Upper end be set in together, make the jaw structure 41 of upper mould mold insert hold side face in thimble insert structure 51 tightly, and thimble edge
Certain interval 50 is retained between the bottom surface of the top surface of part structure 51 and upper mould mold insert 4；
In bobbin unitary mould injection moulding process, the auxiliary section to upper mould mold insert 4 and lower mould mold insert 5 simultaneously
Position carries out injection process, makes the matching part of mould mold insert and lower mould mold insert and filling on injected plastics material coating mould described
Gap；
After molding, when removing bobbin unitary mould, also remove described upper mould mold insert and lower mould mold insert, obtain
To bobbin 30.
The jaw structure of the present embodiment adopts four, and four jaw structures are evenly distributed on the periphery of thimble insert structure；
Certainly, jaw structure can also using two, three or more, two, three or more jaw structures are evenly distributed on
The periphery of thimble insert structure.
A kind of electromagnetic relay coil frame of the present invention and preparation method thereof, combines prior art through-hole structure bobbin
With the advantage of blind hole structure bobbin, using half-blindness pore structure 3, lower mould mold insert 5 is using conventional top for bobbin terminal hole
Pin insert structure, upper mould mold insert 4 adopts jaw structure 41, with the cooperation of thimble mold insert, holds thimble mold insert tightly, realizes bobbin
Half-blind hole design.When upper mould mold insert 4 and lower mould mold insert 5 coordinate, do not contact between mold insert, between leaving necessarily
Gap, the claw side by surrounding is positioned, and so in injection mo(u)lding, by filling plastic, coil top surface can form half in gap
Blind hole.Jaw structure can be not limited to concrete shape, can carry out different designs according to structure, the quantity of jaw structure should
At least two, such as two pawls, three-jaw, four paws or more multijaw, all can achieve and effectively position, but a pawl cannot realize effectively fixed
Position, the present embodiment, as preference, employs four paws.Such half-blind hole designs molding, and dimensional accuracy is high, simultaneously in coil-end
During sub- plug-in mounting, the soft flocks of generation all remains in terminal in the hole, soft flocks will be caused to drop out because of being used in turn of product, make
Become interiors of products environmental pollution, lead to relay failure.
Above-described embodiment is only used for further illustrating a kind of electromagnetic relay coil frame of the present invention and preparation method thereof, but
The invention is not limited in embodiment, what every technical spirit according to the present invention was made to above example any simply repaiies
Change, equivalent variations and modification, each fall within the protection domain of technical solution of the present invention.
Claims (11)
1. a kind of electromagnetic relay coil frame it is characterised in that：Including bobbin body, it is provided with for pacifying in bobbin body
Install coil the terminal hole of terminal, and described terminal hole is half-blindness pore structure；
Described half-blindness pore structure is made up of the lateral opening of the main aperture of cylindrical shape, the top layer entity of cylindrical shape and at least two, institute
State top layer entity and be connected to one end of main aperture this end opening to close main aperture, described at least two lateral opening is looped around described table
The periphery of layer entity is simultaneously connected with main aperture.
2. electromagnetic relay coil frame according to claim 1 it is characterised in that：Described top layer entity and described main aperture
Diameter is identical, and the periphery of the lateral opening and described top layer entity of described at least two contacts, and lateral opening one end is communicated with outside, side
The other end in hole is connected with the periphery of main aperture to be made lateral opening to be connected with main aperture.
3. electromagnetic relay coil frame according to claim 2 it is characterised in that：Described at least two lateral opening is in uniform
Shape is looped around the periphery of described top layer entity.
4. electromagnetic relay coil frame according to claim 2 it is characterised in that：Described half-blindness pore structure is by mould
Upper mould mold insert and lower mould mold insert are mutually made to edge and using injection molding, the upper end of this lower mould mold insert
For thimble insert structure, the lower end of this upper mould mold insert be provided with least two from bottom surface extend downwardly and can hold tightly described
The claw of the side face of thimble insert structure, when lower mould mold insert is matched with upper mould mold insert, thimble insert structure
Side face is contacted with claw, and the top surface of thimble insert structure is provided with preset gap with the bottom surface of upper mould mold insert；It is molded into
After type, formed described lateral opening at claw, gap location forms described top layer entity.
5. electromagnetic relay coil frame according to claim 2 it is characterised in that：Described lateral opening be four.
6. electromagnetic relay coil frame according to claim 2 it is characterised in that：Described lateral opening be three.
7. electromagnetic relay coil frame according to claim 2 it is characterised in that：Described lateral opening be two.
8. a kind of manufacture method of electromagnetic relay coil frame it is characterised in that：Including：
Select to make upper mould mold insert and the lower mould mold insert of terminal hole, the upper end of lower mould mold insert is tied for thimble mold insert
Structure, the lower end of upper mould mold insert is provided with least two weeks that can hold described thimble insert structure tightly extending downwardly from bottom surface
The jaw structure in face；
During the mounting of bobbin unitary mould, simultaneously by the upper end of the lower end of upper mould mold insert and lower mould mold insert
It is set in together, make the side face in thimble insert structure for the jaw structure holding of upper mould mold insert, and the top of thimble insert structure
Certain interval is retained between the bottom surface of face and upper mould mold insert；
In bobbin unitary mould injection moulding process, the matching part of upper mould mold insert and lower mould mold insert is carried out simultaneously
Injection process, makes the matching part of mould mold insert and lower mould mold insert and the described gap of filling on injected plastics material coating mould；
After molding, when removing bobbin unitary mould, also remove described upper mould mold insert and lower mould mold insert, obtain line
Coil.
9. electromagnetic relay coil frame according to claim 8 manufacture method it is characterised in that：Described jaw structure is adopted
With four, four jaw structures are evenly distributed on the periphery of thimble insert structure.
10. electromagnetic relay coil frame according to claim 8 manufacture method it is characterised in that：Described jaw structure
Using three, three jaw structures are evenly distributed on the periphery of thimble insert structure.
The manufacture method of 11. electromagnetic relay coil framves according to claim 8 it is characterised in that：Described jaw structure
Using two, two jaw structures are evenly distributed on the periphery of thimble insert structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205275.9A CN104064404B (en) | 2014-05-15 | 2014-05-15 | Electromagnetic relay coil support and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205275.9A CN104064404B (en) | 2014-05-15 | 2014-05-15 | Electromagnetic relay coil support and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104064404A CN104064404A (en) | 2014-09-24 |
| CN104064404B true CN104064404B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410205275.9A Active CN104064404B (en) | 2014-05-15 | 2014-05-15 | Electromagnetic relay coil support and manufacture method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108312434B (en) * | 2018-03-22 | 2019-11-29 | 三友联众集团股份有限公司 | A kind of relay coil skeleton injection mold |
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| US6299478B1 (en) * | 2000-06-21 | 2001-10-09 | Hon Hai Precision Ind. Co., Ltd. | Elastic locking device for locking two components together |
| CN101079345A (en) * | 2006-05-26 | 2007-11-28 | 浙江三花制冷集团有限公司 | Coil framework and electromagnetic coil |
| CN202781599U (en) * | 2012-08-29 | 2013-03-13 | 晟扬精密模具（昆山）有限公司 | Embedded part for injection molding of round-corner deep-hole |
| CN103407082A (en) * | 2013-08-15 | 2013-11-27 | 无锡市新区伟创利模具厂 | Mounting structure for ejector pin mold insert of front mold |
| CN203850221U (en) * | 2014-05-15 | 2014-09-24 | 厦门宏发电声股份有限公司 | Electromagnetic relay coil frame |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201369883Y (en) * | 2008-11-07 | 2009-12-23 | 上海微电子装备有限公司 | Machine cabinet with connection indication device |
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- 2014-05-15 CN CN201410205275.9A patent/CN104064404B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299478B1 (en) * | 2000-06-21 | 2001-10-09 | Hon Hai Precision Ind. Co., Ltd. | Elastic locking device for locking two components together |
| CN101079345A (en) * | 2006-05-26 | 2007-11-28 | 浙江三花制冷集团有限公司 | Coil framework and electromagnetic coil |
| CN202781599U (en) * | 2012-08-29 | 2013-03-13 | 晟扬精密模具（昆山）有限公司 | Embedded part for injection molding of round-corner deep-hole |
| CN103407082A (en) * | 2013-08-15 | 2013-11-27 | 无锡市新区伟创利模具厂 | Mounting structure for ejector pin mold insert of front mold |
| CN203850221U (en) * | 2014-05-15 | 2014-09-24 | 厦门宏发电声股份有限公司 | Electromagnetic relay coil frame |
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| CN104064404A (en) | 2014-09-24 |
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