CN207719108U - The electromagnetic relay of coil foot insert injection molding - Google Patents
The electromagnetic relay of coil foot insert injection molding Download PDFInfo
- Publication number
- CN207719108U CN207719108U CN201721399964.3U CN201721399964U CN207719108U CN 207719108 U CN207719108 U CN 207719108U CN 201721399964 U CN201721399964 U CN 201721399964U CN 207719108 U CN207719108 U CN 207719108U
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- CN
- China
- Prior art keywords
- coil foot
- seal wire
- coil
- foot
- insert injection
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of electromagnetic relays of coil foot insert injection molding, including bobbin and coil foot；Coil foot is vertical bar shaped rod piece, and the middle section of coil foot is fixed on by insert injection molding mode in bobbin, and bobbin is equipped with the stitch hole of perforation；The seal wire slot on bobbin is formed in after stripping forming come set winding foot using seal wire mandril when bobbin is additionally provided with insert injection moulding；Seal wire slot is U-shape to be paperwrapped in coil foot from three sides, and the bottom edge of the U-shape of seal wire slot is set as leading to external opening, and the direction being open and stitch hole are perpendicular.The utility model first can position coil foot by the seal wire mandril of mold, prevent injection moulding process coil foot from causing to deform due to impact when being flowed by molten condition plastics or shift, realize the high-precision positioning in bobbin of coil foot, meet design requirement at a distance from ensuring the relay yoke of thus bobbin assembling between coil foot, to can ensure that dielectric withstanding voltage meets design requirement.
Description
Technical field
The utility model is related to a kind of electromagnetic relay, more particularly to a kind of electromagnetism of coil foot insert injection molding after
Electric appliance.
Background technology
It includes line that electromagnetic relay, which generally includes components, the coil such as pedestal, coil, iron core, armature, yoke, dynamic spring, quiet spring,
Coil and the enameled 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 matches, and when coil working, armature is drawn to iron core and drives the stationary contact phase of the movable contact and quiet spring that move spring
Contact.
A kind of electromagnetic relay of the prior art, coil foot one end are connected by arc-welding and coil enameled wire, and the other end is led
Go out to be formed the coil drive leading foot of relay, the middle section of the coil foot of this electromagnetic relay is embedded in bobbin completely
In, that is, insert injection molding mode is used, using the middle section of coil foot as insert injection molding in bobbin, by
Run through entire bobbin in coil foot, therefore the length of coil foot design is longer, coil foot is easy by molten in insert injection moulding
Melt impact when state plastics flow and cause to deform or shift, causes position inaccurate of the coil foot in bobbin, to
Cause distance between coil foot and yoke that can not ensure, is susceptible to dielectric withstanding voltage between coil foot and yoke and design requirement is not achieved
Drawback.
Utility model content
The purpose of the utility model is to overcome the deficiencies of the prior art, provide a kind of electricity of coil foot insert injection molding
Magnetic relay, by the way that seal wire slot is arranged on bobbin so that during insert injection moulding, the seal wire thimble of mold can be passed through
High-precision positioning is carried out to coil foot, it is ensured that thus the relay yoke of bobbin assembling between coil foot at a distance from meet and set
Meter requires, to can ensure that dielectric withstanding voltage meets design requirement.
Technical solution adopted by the utility model to solve its technical problems is：A kind of electricity of coil foot insert injection molding
Magnetic relay, including bobbin and coil foot；The coil foot is vertical bar shaped rod piece, and the middle section of the coil foot passes through embedding
Part injection molding is fixed in bobbin, and the bobbin is equipped with the stitch hole of perforation to adapt in the coil foot
Between part；It is formed in after stripping forming come set winding foot using seal wire mandril when the bobbin is additionally provided with insert injection moulding
Seal wire slot on bobbin, the seal wire slot are U-shape to be paperwrapped in the coil foot, the U-shaped shape of the seal wire slot from three sides
The bottom edge of shape is set as leading to external opening, 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 slot is in that direction is opposite with the external opening of leading to of seal wire slot.
The external opening of leading to of the seal wire slot is circle.
The seal wire slot leads to external first formed when being additionally provided with insert injection moulding between the coil foot that be open
Plastic entity part.
The inclined shape in both sides of the U-shape of the seal wire slot.
The both sides of the U-shape of the seal wire slot are in increase gradually to the opening direction of the U-shaped mouth.
The both sides of the U-shape of the seal wire slot are tangent with coil foot respectively, so that the two of the U-shape of seal wire slot
The the second plastic entity part formed when being additionally provided with insert injection moulding between side and the coil foot.
The cross section of the coil foot is square.
The cross section of the coil foot 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 foot insert injection molding of the utility model is that coil foot is used insert injection moulding
Molding mode is fixed on composition bobbin component in bobbin, and the coil foot of corresponding number is first penetrated in injection molding, then uses mould
The seal wire mandril of tool limits coil foot, and seal wire mandril is strip circle rod piece, and one end for limiting is equipped with U-shaped card
Mouthful, seal wire mandril is stuck in using U-shaped bayonet at a position of the middle section of coil foot, is then injected into the cavity of mold molten
Melt the shape that state plastics form bobbin, the limit because of seal wire mandril to coil foot, coil foot can prevent inserts
Impact when molten condition plastics flow when injection molding, seal wire mandril is deviate from after injection molding, and the position that seal wire mandril exits is formed
Seal wire slot, seal wire slot surround structure in three sides.
Compared with prior art, the utility model has the beneficial effects that：
1, the utility model as a result of when bobbin is additionally provided with insert injection moulding using seal wire mandril come set winding
Foot and the seal wire slot on bobbin is formed in after stripping forming, the seal wire slot is that U-shape is described to be paperwrapped in from three sides
Coil foot, the bottom edge of the U-shape of the seal wire slot are set as leading to external opening, and in the direction being open and the stitch hole
Heart line is perpendicular.The structure of the utility model first can position coil foot by the seal wire mandril of mold, and injection moulding process is prevented
Coil foot is caused to deform or be shifted due to impact when being flowed by molten condition plastics, to realize that coil foot is online
High-precision positioning in coil, it is ensured that thus bobbin assembling relay yoke between coil foot at a distance from meet design want
It asks, to can ensure that dielectric withstanding voltage meets design requirement.
2, the utility model is as a result of tangent with coil foot respectively by the both sides of the U-shape of seal wire slot, in this way, making
Obtain seal wire slot leads to external the first plastic entity portion formed when being additionally provided with insert injection moulding between the coil foot that is open
Point, the second plastic entity portion formed when being additionally provided with insert injection moulding between the both sides of the U-shape of seal wire slot and the coil foot
Point, coil foot is wrapped from three sides using the first plastic entity part and the second plastic entity part, can so that metal fillings is miscellaneous
Matter will not contact when entering seal wire slot with coil pin, it can be ensured that the dielectric withstanding voltage between coil foot and yoke is met the requirements.
The utility model is described in further detail with reference to the accompanying drawings and embodiments；But a kind of line of the utility model
The electromagnetic relay of circle foot insert injection molding is not limited to embodiment.
Description of the drawings
Fig. 1 is the D structure schematic diagram of example The utility model；
Fig. 2 is the vertical view of example The utility model；
Fig. 3 is the organigram of the coil foot of example The utility model；
Fig. 4 is that the seal wire mandril of the mold of example The utility model limits schematic diagram to coil foot；
Fig. 5 is the insert injection molding schematic diagram of example The utility model；
Fig. 6 is the insert injection molding sectional view of example The utility model；
Fig. 7 is the portions the A enlarged diagram in Fig. 6；
Fig. 8 is the seal wire mandril abjection schematic diagram of example The utility model；
Fig. 9 is the sectional view of the bobbin of example The utility model；
Figure 10 is the portions the B enlarged diagram in Fig. 9.
Specific implementation mode
Embodiment
Shown in Fig. 1, Fig. 2, a kind of electromagnetic relay of coil foot insert injection molding of the utility model, including base
Seat 1, bobbin 2, coil foot 3, yoke 4, moving spring armature component 5 and quiet spring 6；Bobbin 2, yoke 4 and quiet spring 6 are separately mounted to
In pedestal 1, the armature corresponding matching of moving spring armature component 5 yoke 4 knife-edge part, the dynamic spring point of moving spring armature component 5 with it is quiet
The stationary contact of spring 6 is in matched position.
Shown in Fig. 3 to Figure 10, the coil foot 3 is vertical bar shaped rod piece, and the middle section of the coil foot 3 passes through embedding
Part injection molding is fixed in bobbin 2, and the bobbin 2 is equipped with the stitch hole 21 of perforation to adapt to the coil foot
3 middle section；Using seal wire mandril 7 come set winding foot and in stripping forming when the bobbin 2 is additionally provided with insert injection moulding
The seal wire slot 22 being formed in afterwards on bobbin, the seal wire slot 22 be U-shape to be paperwrapped in the coil foot 3 from three sides, should
The bottom edge of the U-shape of seal wire slot 22 is set as leading to external opening 221, 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 slot 22 and the opening for leading to outside of seal wire slot
221 is opposite in direction.
In the present embodiment, the external opening 221 of leading to of seal wire slot is circle.
In the present embodiment, when being additionally provided with insert injection moulding between the opening 221 and the coil foot 3 for leading to outside of seal wire slot
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 slot 22.
In the present embodiment, the both sides 224 of the U-shape of seal wire slot 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 slot 22 are tangent with coil foot 3 respectively, so that seal wire slot
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 foot 3
225。
In the present embodiment, the cross section of coil foot 3 is square.Certainly, the cross section of coil foot 3 can also be set as round.
In the present embodiment, bobbin 2 has the iron core hole 23 for being used for inserting iron core, the stitch hole 21 and 23 phase of iron core hole
Vertically.
A kind of electromagnetic relay of coil foot insert injection molding of the utility model is to note coil foot 3 using inserts
Modeling molding mode is fixed on composition bobbin component in bobbin 2, the coil foot 3 of corresponding number is first penetrated in injection molding, then
Coil foot 3 is limited with the seal wire mandril 7 of mold, seal wire mandril 7 is strip circle rod piece, and one end for limiting is equipped with
U-shaped bayonet 71, seal wire mandril 7 are stuck in using U-shaped bayonet 71 at a position of the middle section of coil foot 3, then to mold
Injection molten condition plastics form the shape of bobbin, the limit because of seal wire mandril 7 to coil foot 3, coil in cavity
Foot 3 can prevent impact when molten condition plastics flow when insert injection moulding, and seal wire mandril 7 is deviate from after injection molding, seal wire top
The position that bar 7 exits forms seal wire slot 22, and seal wire slot 22 surrounds structure in three sides.
Described in Fig. 7, the both sides of the U-shaped bayonet 71 of seal wire mandril 7 are equipped with inclined-plane in the place of clamping coil foot 3
711, after mold clamping, seal wire mandril 7 moves to the position of setting, and 3 three face of coil foot is protected.In injection moulding process, line
When being deformed or shifting by molten plastic impact, the inclined-plane 711 of mandril 7 connects with 3 seamed edge of coil foot in line circle foot 3
It touches, to limit the deformation or displacement of coil foot 3.Due to mandril 7 and 3 seamed edge linear contact of coil foot, remaining place is all empty
Chamber, in injection moulding process, filling plastic expires chamber portion, and after injection molding, mandril 7 exits, in the periphery shape of coil foot 3
At 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 foot 3 from three sides, which can make metal fillings impurity enter seal wire slot 22
Shi Buhui is contacted with coil pin 3, it can be ensured that the dielectric withstanding voltage between coil foot 3 and yoke is met the requirements.
A kind of electromagnetic relay of coil foot insert injection molding of the utility model is used in bobbin 2 equipped with embedding
The seal wire slot 22 on bobbin is formed in after stripping forming come set winding foot using seal wire mandril 7 when part is molded, this is led
Silk slot 22 to lead to external 221 direction of opening perpendicular with the stitch hole 21, the seal wire slot 22 is U-shape with from three
While being paperwrapped in the coil foot 3.The structure of the utility model first can position coil foot 3 by the seal wire mandril 7 of mold, prevent
Only injection moulding process coil foot 3 is caused to deform or be shifted due to impact when being flowed by molten condition plastics, so as to reality
Existing coil foot high-precision positioning in bobbin 2, it is ensured that thus between the relay yoke and coil foot of bobbin assembling away from
From design requirement (as shown in Figure 2) is met, to can ensure that dielectric withstanding voltage meets design requirement.
The preferred embodiment of above-mentioned only the utility model, does not impose any limitation on the present invention.Though
So the utility model has been disclosed with preferred embodiment as above, however is not limited to the utility model.It is any to be familiar with this field
Technical staff, in the case where not departing from technical solutions of the utility model range, all using the technology contents of the disclosure above
Many possible changes and modifications are made to technical solutions of the utility model, or are revised as equivalents equivalent embodiment.Therefore,
Every content without departing from technical solutions of the utility model, according to made to the above embodiment of the utility model technical spirit
What simple modification, equivalent variation and modification, should all fall in the range of technical solutions of the utility model are protected.
Claims (10)
1. a kind of electromagnetic relay of coil foot insert injection molding, including bobbin and coil foot；The coil foot is vertical bar
The middle section of shape rod piece, the coil foot is fixed on by insert injection molding mode in bobbin, and the bobbin is equipped with
The stitch hole of perforation is to adapt to the middle section of the coil foot；It is characterized in that：The bobbin is additionally provided with insert injection moulding
Shi Liyong seal wire mandrils carry out set winding foot and are formed in the seal wire slot on bobbin after stripping forming, and the seal wire slot is U
To be paperwrapped in the coil foot from three sides, the bottom edge of the U-shape of the seal wire slot is set as leading to external opening shape shape, and opens
The direction and the stitch hole of mouth are perpendicular.
2. the electromagnetic relay of coil foot insert injection molding according to claim 1, it is characterised in that：The seal wire slot
U-shape U-shaped mouth opening and seal wire slot to lead to external opening opposite in direction.
3. the electromagnetic relay of coil foot insert injection molding according to claim 2, it is characterised in that：The seal wire slot
External opening of leading to be circle.
4. the electromagnetic relay of coil foot insert injection molding according to claim 2 or 3, it is characterised in that：It is described to lead
Silk slot leads to external the first plastic entity part formed when being additionally provided with insert injection moulding between the coil foot that is open.
5. the electromagnetic relay of coil foot insert injection molding according to claim 2, it is characterised in that：The seal wire slot
U-shape the inclined shape in both sides.
6. the electromagnetic relay of coil foot insert injection molding according to claim 5, it is characterised in that：The seal wire slot
U-shape both sides to the opening direction of the U-shaped mouth in gradually increasing.
7. the electromagnetic relay of coil foot insert injection molding according to claim 6, it is characterised in that：The seal wire slot
U-shape both sides it is tangent with coil foot respectively so that between the both sides of the U-shape of seal wire slot and the coil foot
It is additionally provided with the second plastic entity part formed when insert injection moulding.
8. the electromagnetic relay of coil foot insert injection molding according to claim 1, it is characterised in that：The coil foot
Cross section be square.
9. the electromagnetic relay of coil foot insert injection molding according to claim 1, it is characterised in that：The coil foot
Cross section be circle.
10. the electromagnetic relay of coil foot 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 |
|---|---|---|---|
| CN201721399964.3U CN207719108U (en) | 2017-10-27 | 2017-10-27 | The electromagnetic relay of coil foot insert injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721399964.3U CN207719108U (en) | 2017-10-27 | 2017-10-27 | The electromagnetic relay of coil foot insert injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207719108U true CN207719108U (en) | 2018-08-10 |
Family
ID=63060810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721399964.3U Withdrawn - After Issue CN207719108U (en) | 2017-10-27 | 2017-10-27 | The electromagnetic relay of coil foot insert injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207719108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833795A (en) * | 2017-10-27 | 2018-03-23 | 厦门宏发汽车电子有限公司 | A kind of electromagnetic relay of coil pin insert injection molding |
-
2017
- 2017-10-27 CN CN201721399964.3U patent/CN207719108U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833795A (en) * | 2017-10-27 | 2018-03-23 | 厦门宏发汽车电子有限公司 | A kind of electromagnetic relay of coil pin insert injection molding |
| CN107833795B (en) * | 2017-10-27 | 2020-02-18 | 厦门宏发汽车电子有限公司 | Electromagnetic relay formed by injection molding of coil pin insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180810 Effective date of abandoning: 20200218 |
|
| AV01 | Patent right actively abandoned |