CN107833795A - A kind of electromagnetic relay of coil pin insert injection molding - Google Patents
A kind of electromagnetic relay of coil pin insert injection molding Download PDFInfo
- Publication number
- CN107833795A CN107833795A CN201711026653.7A CN201711026653A CN107833795A CN 107833795 A CN107833795 A CN 107833795A CN 201711026653 A CN201711026653 A CN 201711026653A CN 107833795 A CN107833795 A CN 107833795A
- Authority
- CN
- China
- Prior art keywords
- coil pin
- seal wire
- insert injection
- bobbin
- injection molding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H50/443—Connections to coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former
Abstract
The invention discloses a kind of electromagnetic relay of coil pin insert injection molding, including bobbin and coil pin；Coil pin is vertical bar shaped rod member, and the center section of coil pin is fixed in bobbin by insert injection molding mode, and bobbin is provided with the stitch hole of insertion；The seal wire groove on bobbin is formed come set winding pin and after stripping forming using seal wire push rod when bobbin is additionally provided with insert injection moulding；Seal wire groove be U-shape to be paperwrapped in coil pin from three sides, the base of the U-shape of seal wire groove is set to the opening for leading to outside, and the direction being open and stitch hole are perpendicular.The present invention can first be positioned by the seal wire push rod of mould to coil pin, prevent injection moulding process coil pin from causing to deform or shifting due to impact when being flowed by molten condition plastics, realize the high-precision positioning in bobbin of coil pin, ensure that the distance thus between the relay yoke and coil pin of bobbin assembling meets design requirement, so as to can ensure that dielectric withstanding voltage meets design requirement.
Description
Technical field
The present invention relates to a kind of electromagnetic relay, more particularly to a kind of electromagnetism relay of coil pin insert injection molding
Device.
Background technology
Electromagnetic relay, which generally includes part, the coil such as pedestal, coil, iron core, armature, yoke, dynamic spring, quiet spring, includes line
Coil and the enamel-covered wire being wrapped on bobbin, bobbin is on pedestal, and iron core is inserted in bobbin, and yoke is matched with coil
Frame；Armature and dynamic spring often form moving spring armature component, and armature then coordinates the knife-edge part in yoke, move spring movable contact then with it is quiet
The stationary contact of spring is engaged, and when coil working, armature is drawn to iron core and drives the stationary contact phase of the movable contact and quiet spring of dynamic spring
Contact.
A kind of electromagnetic relay of prior art, coil pin one end are connected by arc-welding and coil enamel-covered wire, and the other end is led
Go out to be formed the coil drive leading foot of relay, the center section of the coil pin of this electromagnetic relay is embedded in bobbin completely
In, that is, using insert injection molding mode, using the center section of coil pin as insert injection molding in bobbin, by
Run through whole bobbin in coil pin, therefore the length of coil pin design is longer, in insert injection moulding, coil pin is easily by molten
Melt impact when state plastics flow and cause to deform or shift, cause position inaccurate of the coil pin in bobbin, so as to
Cause distance between coil pin and yoke not ensure, dielectric withstanding voltage between coil pin and yoke easily occur and do not reach design requirement
Drawback.
The content of the invention
It is an object of the invention to overcome the deficiency of prior art, there is provided a kind of electromagnetism of coil pin insert injection molding after
Electrical equipment, by setting seal wire groove on bobbin so that, can be by the seal wire thimble of mould to line during insert injection moulding
Enclose pin and carry out high-precision positioning, it is ensured that thus the distance between the relay yoke and coil pin of bobbin assembling meets that design will
Ask, so as to can ensure that dielectric withstanding voltage meets design requirement.
The technical solution adopted for the present invention to solve the technical problems is：A kind of electromagnetism of coil pin insert injection molding after
Electrical equipment, including bobbin and coil pin；The coil pin is vertical bar shaped rod member, and the center section of the coil pin is noted by inserts
Modeling molding mode is fixed in bobbin, and the bobbin is provided with the stitch hole of insertion to adapt to the pars intermedia of the coil pin
Point；Formed when the bobbin is additionally provided with insert injection moulding using seal wire push rod come set winding pin after stripping forming in coil
Seal wire groove on frame, the seal wire groove be U-shape to be paperwrapped in the coil pin from three sides, the U-shape of the seal wire groove
Base is set to the opening for leading to outside, and the direction being open and the stitch hole are perpendicular.
The opening of the U-shaped mouth of the U-shape of the seal wire groove and the opening for leading to outside of seal wire groove are in opposite direction.
The opening for leading to outside of the seal wire groove is circle.
The seal wire groove leads to first formed when being additionally provided with insert injection moulding between the opening of outside and the coil pin
Plastic entity part.
The inclined shape in both sides of the U-shape of the seal wire groove.
Opening direction from the both sides of the U-shape of the seal wire groove to the U-shaped mouth in gradually increasing.
The both sides of the U-shape of the seal wire groove are tangent with coil pin respectively, so that the two of the U-shape of seal wire groove
The the second plastic entity part formed when being additionally provided with insert injection moulding between side and the coil pin.
The cross section of the coil pin is square.
The cross section of the coil pin is circle.
The bobbin has the iron core hole for being used for inserting iron core, and the stitch hole and iron core hole are perpendicular.
A kind of electromagnetic relay of coil pin insert injection molding of the present invention, is that coil pin is used into insert injection molding
Mode is fixed on composition bobbin component in bobbin, the coil pin of respective amount is first penetrated in injection, then with mould
Seal wire push rod is spacing to the progress of coil pin, and seal wire push rod is strip circle rod member, is provided with U-shaped bayonet socket for spacing one end, leads
Silk push rod is stuck in an opening position of the center section of coil pin using U-shaped bayonet socket, then injects molten into the die cavity of mould
State plastics form the shape of bobbin, and insert injection moulding can be prevented to the spacing of coil pin, coil pin because of seal wire push rod
When the flowing of molten condition plastics when impact, seal wire push rod is deviate from after injection molding, and the position that seal wire push rod exits forms seal wire
Groove, seal wire groove surround structure in three sides.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the present invention as a result of when bobbin is additionally provided with insert injection moulding using seal wire push rod come set winding pin and
The seal wire groove on bobbin is formed after stripping forming, the seal wire groove is U-shape to be paperwrapped in the coil from three sides
Pin, the base of the U-shape of the seal wire groove are set to the opening for leading to outside, and the center line in the direction being open and the stitch hole
It is perpendicular.The structure of the present invention can first be positioned by the seal wire push rod of mould to coil pin, prevent injection moulding process coil pin
Cause to deform or shift due to impact when being flowed by molten condition plastics, so as to which coil pin height in bobbin can be realized
The positioning of precision, it is ensured that thus the distance between the relay yoke and coil pin of bobbin assembling meets design requirement, so as to
Ensure that dielectric withstanding voltage meets design requirement.
2nd, the present invention is as a result of tangent with coil pin respectively by the both sides of the U-shape of seal wire groove, so so that lead
Silk groove leads to the first plastic entity part formed when being additionally provided with insert injection moulding between the opening of outside and the coil pin, leads
The the second plastic entity part formed when being additionally provided with insert injection moulding between the both sides of the U-shape of silk groove and the coil pin, profit
Coil pin is wrapped from three sides with the first plastic entity part and the second plastic entity part, metal fillings impurity can be caused to enter
It will not be contacted during seal wire groove with coil pin, it can be ensured that the dielectric withstanding voltage between coil pin and yoke meets to require.
The present invention is described in further detail below in conjunction with drawings and Examples；A kind of but coil pin inserts of the present invention
The electromagnetic relay of injection molding is not limited to embodiment.
Brief description of the drawings
Fig. 1 is the D structure schematic diagram of the embodiment present invention；
Fig. 2 is the top view of the embodiment present invention；
Fig. 3 is the organigram of the coil pin of the embodiment present invention；
Fig. 4 is the seal wire push rod of the mould of the embodiment present invention to the spacing schematic diagram of coil pin；
Fig. 5 is the insert injection molding schematic diagram of the embodiment present invention；
Fig. 6 is the insert injection molding sectional view of the embodiment present invention；
Fig. 7 is the A portions enlarged diagram in Fig. 6；
Fig. 8 is the seal wire push rod abjection schematic diagram of the embodiment present invention；
Fig. 9 is the sectional view of the bobbin of the embodiment present invention；
Figure 10 is the B portions enlarged diagram in Fig. 9.
Embodiment
Embodiment
Referring to shown in Fig. 1, Fig. 2, a kind of electromagnetic relay of coil pin insert injection molding of the invention, including pedestal 1,
Bobbin 2, coil pin 3, yoke 4, moving spring armature component 5 and quiet spring 6；Bobbin 2, yoke 4 and quiet spring 6 are separately mounted to pedestal
In 1, the armature corresponding matching of moving spring armature component 5 is in the knife-edge part of yoke 4, dynamic spring point and the quiet spring 6 of moving spring armature component 5
Stationary contact is in the position being engaged.
Referring to shown in Fig. 3 to Figure 10, the coil pin 3 is vertical bar shaped rod member, and the center section of the coil pin 3 passes through embedding
Part injection molding is fixed in bobbin 2, and the bobbin 2 is provided with the stitch hole 21 of insertion to adapt to the coil pin
3 center section；Using seal wire push rod 7 come set winding pin and in stripping forming when the bobbin 2 is additionally provided with insert injection moulding
The seal wire groove 22 formed afterwards on bobbin, the seal wire groove 22 be U-shape to be paperwrapped in the coil pin 3 from three sides, should
The base of the U-shape of seal wire groove 22 is set to the opening 221 for leading to outside, and the direction of opening 221 and the stitch hole 21
Center line is perpendicular.
In the present embodiment, the opening 222 of the U-shaped mouth of the U-shape of seal wire groove 22 and the opening for leading to outside of seal wire groove
221 in opposite direction.
In the present embodiment, the opening 221 for leading to outside of seal wire groove is circle.
In the present embodiment, when being additionally provided with insert injection moulding between the opening 221 for leading to outside of seal wire groove and the coil pin 3
The the first plastic entity part 223 formed.
In the present embodiment, the 224 inclined shape of both sides of the U-shape of seal wire groove 22.
In the present embodiment, the both sides 224 of the U-shape of seal wire groove 22 are to the direction of the opening 222 of the U-shaped mouth in gradually
Increase.
In the present embodiment, the both sides 224 of the U-shape of seal wire groove 22 are tangent with coil pin 3 respectively, so that seal wire groove
The the second plastic entity part formed when being additionally provided with insert injection moulding between the both sides 224 of 22 U-shape and the coil pin 3
225。
In the present embodiment, the cross section of coil pin 3 is square.Certainly, the cross section of coil pin 3 can also be set to circular.
In the present embodiment, bobbin 2 has the iron core hole 23 for being used for inserting iron core, the stitch hole 21 and the phase of iron core hole 23
Vertically.
The present invention a kind of coil pin insert injection molding electromagnetic relay, be by coil pin 3 using insert injection moulding into
Type mode is fixed on composition bobbin component in bobbin 2, and the coil pin 3 of respective amount is first penetrated in injection, then uses mould
The seal wire push rod 7 of tool carries out spacing to coil pin 3, and seal wire push rod 7 is strip circle rod member, and U-shaped is provided with for spacing one end
Bayonet socket 71, seal wire push rod 7 are stuck in an opening position of the center section of coil pin 3 using U-shaped bayonet socket 71, then to the die cavity of mould
Interior injection molten condition plastics form the shape of bobbin, and because of seal wire push rod 7 to the spacing of coil pin 3, coil pin 3 can
Impact when molten condition plastics flow during preventing insert injection moulding, seal wire push rod 7 is deviate from after injection molding, and seal wire push rod 7 moves back
The position gone out forms seal wire groove 22, and seal wire groove 22 surrounds structure in three sides.
Referring to described in Fig. 7, the both sides of the U-shaped bayonet socket 71 of seal wire push rod 7 are provided with inclined-plane in the place of clamping coil pin 3
711, after mould matched moulds, seal wire push rod 7 moves to the position of setting, and the face of coil pin 3 three is protected.In injection moulding process, line
When being deformed or shifting by molten plastic impact, the inclined-plane 711 of push rod 7 connects circle pin 3 with the seamed edge of coil pin 3 in line
Touch, so as to the deformation or displacement of limiting coil pin 3.Due to push rod 7 and the seamed edge linear contact of coil pin 3, remaining place is all empty
Chamber, in injection moulding process, the full chamber portion of filling plastic, after injection molding, push rod 7 exits, so as in the periphery shape of coil pin 3
Into the first plastic entity part 223 and the second plastic entity part 225, as shown in Figure 10, the first plastic entity part 223 and
Two plastic entity parts 225 wrap coil pin 3 from three sides, and the partly plastic can cause metal fillings impurity to enter seal wire groove 22
Shi Buhui contacts with coil pin 3, it can be ensured that the dielectric withstanding voltage between coil pin 3 and yoke meets to require.
A kind of electromagnetic relay of coil pin insert injection molding of the present invention, employ and noted in bobbin 2 provided with inserts
The seal wire groove 22 on bobbin, the seal wire groove are formed come set winding pin and after stripping forming using seal wire push rod 7 during modeling
22 direction of opening 221 and the stitch hole 21 of leading to outside is perpendicular, and the seal wire groove 22 is U-shape with from San Bianbao
It is around in the coil pin 3.The structure of the present invention can first be positioned by the seal wire push rod 7 of mould to coil pin 3, prevent from being molded
Journey coil pin 3 is caused to deform or shifted due to impact when being flowed by molten condition plastics, so as to realize coil pin
The high-precision positioning in bobbin 2, it is ensured that thus the distance between the relay yoke and coil pin of bobbin assembling meets to set
Meter requires (as shown in Figure 2), so as to can ensure that dielectric withstanding voltage meets design requirement.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.It is although of the invention
It is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those skilled in the art, do not taking off
In the case of from technical solution of the present invention scope, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
More possible changes and modifications, or it is revised as equivalents equivalent embodiment.Therefore, it is every without departing from technical solution of the present invention
Content, according to the technology of the present invention essence to any simple modifications, equivalents, and modifications made for any of the above embodiments, it all should fall
In the range of technical solution of the present invention protection.
Claims (10)
1. a kind of electromagnetic relay of coil pin insert injection molding, including bobbin and coil pin；The coil pin is vertical bar
Shape rod member, the center section of the coil pin are fixed in bobbin by insert injection molding mode, and the bobbin is provided with
The stitch hole of insertion is to adapt to the center section of the coil pin；It is characterized in that：The bobbin is additionally provided with insert injection moulding
Shi Liyong seal wire push rods carry out set winding pin and the seal wire groove on bobbin are formed after stripping forming, and the seal wire groove is U
For shape shape to be paperwrapped in the coil pin from three sides, the base of the U-shape of the seal wire groove is set to the opening for leading to outside, and opens
The direction and the stitch hole of mouth are perpendicular.
2. the electromagnetic relay of coil pin insert injection molding according to claim 1, it is characterised in that：The seal wire groove
U-shape U-shaped mouth opening and seal wire groove the opening for leading to outside in opposite direction.
3. the electromagnetic relay of coil pin insert injection molding according to claim 2, it is characterised in that：The seal wire groove
Lead to outside opening for circle.
4. the electromagnetic relay of the coil pin insert injection molding according to Claims 2 or 3, it is characterised in that：It is described to lead
Silk groove leads to the first plastic entity part formed when being additionally provided with insert injection moulding between the opening of outside and the coil pin.
5. the electromagnetic relay of coil pin insert injection molding according to claim 1, it is characterised in that：The seal wire groove
U-shape the inclined shape in both sides.
6. the electromagnetic relay of coil pin insert injection molding according to claim 5, it is characterised in that：The seal wire groove
U-shape opening direction from both sides to the U-shaped mouth in gradually increasing.
7. the electromagnetic relay of coil pin insert injection molding according to claim 6, it is characterised in that：The seal wire groove
U-shape both sides it is tangent with coil pin respectively so that between the both sides of the U-shape of seal wire groove and the coil pin
It is additionally provided with the second plastic entity part formed during insert injection moulding.
8. the electromagnetic relay of coil pin insert injection molding according to claim 1, it is characterised in that：The coil pin
Cross section be square.
9. the electromagnetic relay of coil pin insert injection molding according to claim 1, it is characterised in that：The coil pin
Cross section for circle.
10. the electromagnetic relay of coil pin insert injection molding according to claim 1, it is characterised in that：The coil
Frame has the iron core hole for being used for inserting iron core, and the stitch hole and iron core hole are perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711026653.7A CN107833795B (en) | 2017-10-27 | 2017-10-27 | Electromagnetic relay formed by injection molding of coil pin insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711026653.7A CN107833795B (en) | 2017-10-27 | 2017-10-27 | Electromagnetic relay formed by injection molding of coil pin insert |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107833795A true CN107833795A (en) | 2018-03-23 |
| CN107833795B CN107833795B (en) | 2020-02-18 |
Family
ID=61650783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711026653.7A Active CN107833795B (en) | 2017-10-27 | 2017-10-27 | Electromagnetic relay formed by injection molding of coil pin insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107833795B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1697112A (en) * | 2005-05-19 | 2005-11-16 | 厦门宏发电声有限公司 | Coil component of electromagnetic relay |
| EP1615251A1 (en) * | 2004-07-07 | 2006-01-11 | Tyco Electronics AMP GmbH | Relay, in particular for a plug installation, and method for the production thereof |
| CN201527934U (en) * | 2009-09-22 | 2010-07-14 | 厦门宏发电声股份有限公司 | Electromagnetic relay |
| CN103996527A (en) * | 2014-05-30 | 2014-08-20 | 四川省科威电工有限责任公司 | Coil injection 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 |
| CN205452189U (en) * | 2015-12-24 | 2016-08-10 | 浙江正泰电器股份有限公司 | Ac contactor's coil skeleton |
| CN205609446U (en) * | 2016-04-14 | 2016-09-28 | 厦门宏发电声股份有限公司 | Relay base structure |
| CN106206166A (en) * | 2016-08-29 | 2016-12-07 | 厦门宏发信号电子有限公司 | A kind of electromagnetic relay being molded yoke |
| CN106340425A (en) * | 2015-07-13 | 2017-01-18 | 浙江正泰电器股份有限公司 | Connecting structure for voltage input of relay coil, and processing method of connecting structure |
| CN106920713A (en) * | 2015-12-24 | 2017-07-04 | 浙江正泰电器股份有限公司 | The coil rack of A.C. contactor |
| CN207719108U (en) * | 2017-10-27 | 2018-08-10 | 厦门宏发汽车电子有限公司 | The electromagnetic relay of coil foot insert injection molding |
-
2017
- 2017-10-27 CN CN201711026653.7A patent/CN107833795B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1615251A1 (en) * | 2004-07-07 | 2006-01-11 | Tyco Electronics AMP GmbH | Relay, in particular for a plug installation, and method for the production thereof |
| CN1697112A (en) * | 2005-05-19 | 2005-11-16 | 厦门宏发电声有限公司 | Coil component of electromagnetic relay |
| CN201527934U (en) * | 2009-09-22 | 2010-07-14 | 厦门宏发电声股份有限公司 | Electromagnetic relay |
| CN203850221U (en) * | 2014-05-15 | 2014-09-24 | 厦门宏发电声股份有限公司 | Electromagnetic relay coil frame |
| CN103996527A (en) * | 2014-05-30 | 2014-08-20 | 四川省科威电工有限责任公司 | Coil injection mold |
| CN106340425A (en) * | 2015-07-13 | 2017-01-18 | 浙江正泰电器股份有限公司 | Connecting structure for voltage input of relay coil, and processing method of connecting structure |
| CN205452189U (en) * | 2015-12-24 | 2016-08-10 | 浙江正泰电器股份有限公司 | Ac contactor's coil skeleton |
| CN106920713A (en) * | 2015-12-24 | 2017-07-04 | 浙江正泰电器股份有限公司 | The coil rack of A.C. contactor |
| CN205609446U (en) * | 2016-04-14 | 2016-09-28 | 厦门宏发电声股份有限公司 | Relay base structure |
| CN106206166A (en) * | 2016-08-29 | 2016-12-07 | 厦门宏发信号电子有限公司 | A kind of electromagnetic relay being molded yoke |
| CN207719108U (en) * | 2017-10-27 | 2018-08-10 | 厦门宏发汽车电子有限公司 | The electromagnetic relay of coil foot insert injection molding |
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| Publication number | Publication date |
|---|---|
| CN107833795B (en) | 2020-02-18 |
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