CN105826132B - Positioning stablity and uniformity good relay base structure when can realize quadric injection mould - Google Patents
Positioning stablity and uniformity good relay base structure when can realize quadric injection mould Download PDFInfo
- Publication number
- CN105826132B CN105826132B CN201610231527.4A CN201610231527A CN105826132B CN 105826132 B CN105826132 B CN 105826132B CN 201610231527 A CN201610231527 A CN 201610231527A CN 105826132 B CN105826132 B CN 105826132B
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- CN
- China
- Prior art keywords
- bobbin
- positioning
- injection mould
- relay base
- quadric injection
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses it is a kind of can realize quadric injection mould when the positioning stablity and good relay base structure of uniformity, two copper material lead-out tablets as coil leading foot in bobbin one end are formed when including bobbin and being once molded, copper material lead-out tablet is not provided with the other end of bobbin, but when the other end of coil block sets quadric injection mould for the location division with injection mold realization positioning, with when the correspondence position of two copper material lead-out tablets of bobbin one end and quiet spring band is positioned using laser welding, the location division can make coil block realize positioning on preset direction.The present invention passes through the improvement to relay base structure, can eliminate because quiet spring band deformation and with coil integral molded plastic after caused by internal stress, it can ensure that the leading-out terminal of relay after integral molded plastic is straight, so as to realize high-efficient automatic production and ensure performance.
Description
Technical field
The present invention relates to relay technical field, positioning stablity and one when can realize quadric injection mould more particularly to one kind
The good relay base structure of cause property.
Background technology
The base portion of existing electromagnetic relay includes：Static contact spring piece, the stationary contact being welded on static contact spring piece, static contact spring piece are drawn
Terminal, coil block, coil leading-out terminal, and this portion envelops is connected into the parts of plastics of an entirety.Wherein, coil
Component includes bobbin, the copper cash being wound on bobbin, iron core and copper lead-out tablet, wherein, bobbin is by iron core and copper
This two parts parcel connection of matter lead-out tablet forms the parts of plastics of an entirety, and bobbin is fabricated to can be with the skeleton of coiling copper cash
Shape.
The base portion of this electromagnetic relay is in manufacturing process, it is necessary to carry out Shooting Technique twice.It is molded for the first time
Technique is that iron core, copper lead-out tablet are formed into the one-piece parts for including bobbin by injection-moulded plastic, shape after coiling copper cash
Into coil block, copper lead-out tablet has four corners for being located at bobbin respectively.And second of Shooting Technique is by coil block
With quiet spring band injection together with, on quiet spring band include static contact spring piece, the stationary contact being welded on static contact spring piece, static contact spring piece leading-out terminal,
Coil leading-out terminal.
Shown in Figure 1, this relay base structure of prior art, after being once molded, coil block 100 has four
Individual copper material lead-out tablet 101, this four copper material lead-out tablets 101 are to form one with bobbin 102 when being molded first time, four
Individual copper material lead-out tablet 101 is distributed in two ends of bobbin 102, has often held two copper material lead-out tablets 101.By coil block
Four copper material lead-out tablets 101 at both ends are placed on the quiet correspondence position of spring band 200, pass through copper material lead-out tablet 101 and quiet spring band
200 correspondence positions carry out laser welding, and then this integral part is sent into mould and carries out integral molded plastic parcel so that quiet spring band
Relay leading-out terminal 201 on 200 is reconnected into an entirety with coil block 100 by injection molding manner.
A big drawback is existing for prior art：Coil block 100 carries out secondary combinatorial injection molding shaping simultaneously with quiet spring band 200
After redundance cut-out on quiet spring band 200, crooked skew occurs (as shown in Figure 2 and Figure 3) in relay leading-out terminal 201.Draw
Go out terminal 201 occur skew can cause production can not realize automatic high-efficiency manufacture, in some instances it may even be possible to manufacturing equipment can be damaged；Simultaneously
The crooked skew of leading-out terminal 201 can also influence client and install and use relay, make installation not in place, and then bring hidden danger of quality.
The content of the invention
It is an object of the invention to overcome the deficiency of prior art, there is provided positioning stablity when one kind can realize quadric injection mould
And the relay base structure that uniformity is good, by the improvement to relay base structure, it is whole that quiet spring band and coil can be eliminated
Caused internal stress in body injection moulding process, it is ensured that the leading-out terminal of relay is straight after integral molded plastic, so as to
Realize high-efficient automatic production and ensure relay performance.
The technical solution adopted for the present invention to solve the technical problems is：Positioning stablity when one kind can realize quadric injection mould
And the relay base structure that uniformity is good, including bobbin and once be molded when formed bobbin one end two conducts
The copper material lead-out tablet of coil leading foot, copper material lead-out tablet is not provided with the other end of bobbin, but in coil block
For realizing the location division of positioning with injection mold when the other end sets quadric injection mould, with two copper materials of bobbin one end
When the correspondence position of lead-out tablet and quiet spring band is positioned using laser welding, the location division can make coil on preset direction
Component realizes positioning.
The location division is to form at least one positioning hole on the other end of bobbin after bobbin is once molded.
The location division is to form a positioning hole on the other end of bobbin after bobbin is once molded.
The location division is to form two positioning holes on the other end of bobbin after bobbin is once molded.
The cross section of the positioning hole is circular square or oval or triangle.
The cross section of the positioning hole is polygon.
The location division is the two positioning square grooves formed after bobbin is once molded on the other end of bobbin.
The location division is to be arranged on positioning side that is on the iron core of coil block and corresponding at the bobbin other end
Groove.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is not provided with copper material lead-out tablet as a result of the other end in bobbin, but in the another of coil block
For realizing the location division of positioning with injection mold when one end sets quadric injection mould, to draw in the two of bobbin one end copper material
When slice and the correspondence position of quiet spring band are positioned using laser welding, it is fixed that the location division can also be realized on preset direction
Position.This structure of the present invention, is entered by the two copper material leading-out terminals (i.e. copper material lead-out tablet) for retaining bobbin one end
Row laser welding, the positioning of coil block and quiet spring band is realized, prevent coil block from being offset in vertical and horizontal so that coil group
The iron core endface position of part is reliable, the position location of injection mold when iron core end face is used as secondary combinatorial injection molding.Simultaneously by setting
Put and carry out the cooperation of the other end in the other end of location division of coil block and injection mold, realize the overall horizontal of coil block
And longitudinal register.Because coil block is only one end and quiet spring band laser welding, the other end does not contact directly with quiet spring band, therefore
Caused coil block slight position skew will not be integrally and then inclined with dynamic and static spring band during the iron core end face positioning of laser welding side
Move.After secondary combinatorial injection molding during the cooling meat of plastics, the contraction of plastics can produce an extruding to coil block and become
Shape, coil block position is set to have slight shift.And above-mentioned same reason is based on, the slight shift of coil block will not also cause quiet
Spring band overall offset.Therefore the torsion of the relay base part leading-out terminal formed after secondary combinatorial injection molding can effectively be overcome
Offset problem.
Meanwhile increase location division and injection mold progress by being not provided with that one end of copper material lead-out tablet in coil block
Coordinate, realize the overall transverse direction and longitudinal direction positioning of coil block.The location division being arranged on coil block is carried out with injection mold
Coordinate positioning, because the positioning does not contact directly with quiet spring band, therefore can be when further raising injection precision, will not
Make quiet spring band produce skew due to the skew of coil block and the contraction of plastics to reverse.
The location division directly with quiet spring band connection, does not realize that coil block, quiet spring band and mould position two-by-two, therefore moulds
This one end that expecting the deformation of quiet spring band during part injection can be positioned by location division discharges, and is not transferred to and quiet spring band connection
On relay leading-out terminal, it is ensured that the leading-out terminal of relay is straight after integral molded plastic, realizes that high-efficient automatic produces
And ensure performance.
The present invention is described in further detail below in conjunction with drawings and Examples；But the present invention's can realize secondary injection
Positioning stablity and the good relay base structure of uniformity are not limited to embodiment during modeling.
Brief description of the drawings
Fig. 1 is the schematic diagram when relay base structure of prior art is engaged before quadric injection mould with quiet spring band；
Fig. 2 is D structure signal of the relay base structure of prior art after quadric injection mould and after the shearing of quiet spring band
Figure；
Fig. 3 is front view of the relay base structure of prior art after quadric injection mould and after the shearing of quiet spring band；
Fig. 4 is the schematic diagram of the coil block of the relay base structure of the present invention of embodiment one；
Fig. 5 is the schematic diagram of the coil block (upset one side) of the relay base structure of the present invention of embodiment one；
Fig. 6 is the coil block (upset one side) of the relay base structure of the present invention of embodiment one not around copper cash state
Schematic diagram；
Fig. 7 is the signal when relay base structure of the present invention of embodiment one is engaged before quadric injection mould with quiet spring band
Figure；
Fig. 8 is (upset when the relay base structure of the present invention of embodiment one is engaged before quadric injection mould with quiet spring band
Schematic diagram simultaneously)；
Fig. 9 is D structure signal of the relay base structure of the present invention after quadric injection mould and after the shearing of quiet spring band
Figure；
Figure 10 be the relay base structure of the present invention after quadric injection mould and after the shearing of quiet spring band (upset one side) it is vertical
Body organigram；
Figure 11 is the front view of relay base structure shown in Fig. 9；
Figure 12 is the coil block of the relay base structure of the present invention of embodiment two not around the schematic diagram of copper cash state；
Figure 13 is showing when the relay base structure of the present invention of embodiment two is engaged before quadric injection mould with quiet spring band
It is intended to；
Figure 14 is the coil block of the relay base structure of the present invention of embodiment three not around the schematic diagram of copper cash state；
Figure 15 is showing when the relay base structure of the present invention of embodiment three is engaged before quadric injection mould with quiet spring band
It is intended to；
Figure 16 is the coil block of the relay base structure of the example IV present invention not around the schematic diagram of copper cash state；
Figure 17 is the schematic diagram of the iron core of the coil block of the relay base structure of the example IV present invention；
Figure 18 is showing when the relay base structure of the example IV present invention is engaged before quadric injection mould with quiet spring band
It is intended to.
Embodiment
Embodiment one
It is shown in Figure 4, a kind of positioning stablity when can realize quadric injection mould of the invention and the good relay of uniformity
Understructure, including bobbin 1 and once be molded when formed the one end of bobbin 1 two copper materials as coil leading foot
Matter lead-out tablet 11, copper material lead-out tablet is not provided with the other end of bobbin 1, but the other end setting in coil block is secondary
For realizing the location division of positioning with injection mold during injection, with two copper material lead-out tablets of bobbin one end and quiet spring band
Correspondence position using laser welding position when, the location division can make on preset direction coil block realize positioning.
Coil block includes bobbin, iron core, copper lead-out tablet and copper cash, and first time Shooting Technique is by iron core 3, copper lead-out tablet 11
One one-piece parts for including bobbin 1 is formed by injection-moulded plastic, coil block 10 is formed after coiling copper cash 15.
In the present embodiment, the location division is that two formed after bobbin 1 is once molded on the other end of bobbin 1 are fixed
Position square groove 12.
Referring again to shown in Fig. 1 to Fig. 3, in the prior art, relay base structure is after being once molded, coil block
100 have four copper material lead-out tablets 101, and wherein the two of one end copper material lead-out tablet 101 is used for connecting as coil leading foot
Copper cash, other end of two copper material lead-out tablets 101 do not realize the function that relay needs, this four copper material lead-out tablets
101 are usually used to and are played the role of positioning in quadric injection mould, realize longitudinal direction and horizontal general location, prior art it is this after
Electrical equipment understructure, although bobbin welds positioning stablity after positioning by four lead-out tablets 101 and quiet spring band 200, by
Problem on deformation in itself be present in quiet spring band 200, and the size of quiet spring band 200 can not accomplish it is completely the same, therefore bobbin with it is quiet
The end laser welding of spring band 200 4 can produce slight deformation when cooperation again with injection mold after being fixed, and the deformation can not lead to
Cross and further improve dimensional accuracy to solve, and improving cost is very high.The deformation can be consolidated after integral molded plastic by plastic wraps
Change can not be eliminated voluntarily, therefore can produce an internal stress, and internal stress can cause the relay exit being connected on quiet spring band
Son 201 distorts, and causes the leading-out terminal of relay after being molded not straight (as shown in Figure 2 and Figure 3), is influenceing performance
It can not also realize that automatic high-efficiency manufactures simultaneously.
Referring to shown in Fig. 4 to Figure 11, a kind of positioning stablity when can realize quadric injection mould of the invention and uniformity are good
Relay base structure, for prior art, by retaining two copper material leading-out terminals of the one end of bobbin 1 (i.e.
Copper material lead-out tablet) 11 progress laser weldings, the positioning of coil block 10 and quiet spring band 2 is realized, prevents coil block 10 vertical
To and lateral shift so that the position of iron core end face 31 of the iron core 3 of coil block 10 is reliable, and iron core end face 31 is used as secondary combination
The position location of injection mold during injection.Simultaneously by being arranged on coil block 10 other end of location division (i.e. bobbin 1
Two positioning square grooves 12) and injection mold (for example injection mold can be inserted in two positioning sides by setting contact pin or latch
In groove 12) carry out the other end cooperation, realize coil block 10 overall transverse direction and longitudinal direction positioning.Because coil block 10 is only
One end and the quiet laser welding of spring band 2, the other end do not contact directly with quiet spring band 2, therefore the iron core end face 31 of laser welding side is fixed
The caused slight position of coil block 10 skew will not be with the overall and then skew of dynamic and static spring band 2 during position.After secondary combinatorial injection molding
During the cooling meat of plastics, the contraction of plastics can produce a crimp to coil block 10, make coil block 10
It is equipped with slight shift.And above-mentioned same reason is based on, the slight shift of coil block 10 will not also cause quiet spring band 2 overall partially
Move.Therefore the torsion offset problem of the relay base part leading-out terminal formed after secondary combinatorial injection molding can effectively be overcome.
Meanwhile increase location division (i.e. bobbin 1 by being not provided with coil block 10 that one end of copper material lead-out tablet
Two positioning square grooves 12) coordinated with injection mold, realize the overall transverse direction and longitudinal direction positioning of coil.It is arranged on coil
Location division (i.e. two of bobbin 1 positioning square grooves 12) carries out cooperation positioning with injection mold, due to the positioning not with quiet spring band 2
Directly contact, it is in free movement state that the coil other end is exactly for quiet spring band 2, therefore can improve note further
When moulding precision, quiet spring band 2 will not be made to produce skew due to the skew of coil block 10 and the contraction of plastics and reversed.
The location division (i.e. two positioning square grooves 12 of bobbin 1) is not connected directly with quiet spring band 2, realizes coil block
10th, quiet spring band 2 positions two-by-two with mould, thus parts of plastics be molded when quiet spring band 2 deformation can by location division position this
One end discharge, be not transferred to on the relay leading-out terminal 21 of quiet spring band connection, it is ensured that relay after integral molded plastic
The leading-out terminal 21 of device is straight, realizes high-efficient automatic production and ensures performance.
Embodiment two
Referring to shown in Figure 12 to Figure 13, a kind of positioning stablity when can realize quadric injection mould of the invention and uniformity are good
Relay base structure, it is with the difference of embodiment one, location division is to be formed after bobbin is once molded in bobbin
The other end on two positioning holes 13.
Wherein, the positioning hole 13 is circular port, i.e., the cross section of positioning hole is circle.
Certainly, the cross section of positioning hole can also be square or oval or triangle, or polygon etc..
Embodiment three
Referring to shown in Figure 14 to Figure 15, a kind of positioning stablity when can realize quadric injection mould of the invention and uniformity are good
Relay base structure, it is with the difference of embodiment one, location division is to be formed after bobbin is once molded in bobbin
The other end on a positioning hole 14.
Wherein, the positioning hole 14 is circular port.
Example IV
Referring to shown in Figure 16 to Figure 18, a kind of positioning stablity when can realize quadric injection mould of the invention and uniformity are good
Relay base structure, it is with the difference of embodiment one, the location division is to be arranged on the iron core 3 of coil block
And the positioning square groove 32 corresponded at the bobbin other end.
Iron core 3 is installed in bobbin, belongs to a part for coil block 10, and positioning square groove 32 is its that be located at iron core 3
Middle one end, the end of iron core 3 are also to be at the bobbin other end.
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 (8)
1. a kind of positioning stablity when can realize quadric injection mould and the good relay base structure of uniformity, it is characterised in that：Bag
Include bobbin and two copper material lead-out tablets as coil leading foot in bobbin one end are formed when being once molded, online
The other end of coil is not provided with copper material lead-out tablet, but is used for and injection when the other end of coil block sets quadric injection mould
Mould realizes the location division of positioning, is swashed with being used in the correspondence position of two copper material lead-out tablets of bobbin one end and quiet spring band
When photocoagulation positions, the location division can make coil block realize positioning on preset direction.
2. positioning stablity according to claim 1 when can realize quadric injection mould and the good relay base knot of uniformity
Structure, it is characterised in that：The location division is that formation is at least one fixed on the other end of bobbin after bobbin is once molded
Position hole.
3. positioning stablity according to claim 2 when can realize quadric injection mould and the good relay base knot of uniformity
Structure, it is characterised in that：The location division is to form a positioning hole on the other end of bobbin after bobbin is once molded.
4. positioning stablity according to claim 2 when can realize quadric injection mould and the good relay base knot of uniformity
Structure, it is characterised in that：The location division is to form two positioning holes on the other end of bobbin after bobbin is once molded.
5. the good relay bottom of positioning stablity when can realize quadric injection mould and uniformity according to Claims 2 or 3 or 4
Holder structure, it is characterised in that：The cross section of the positioning hole is circular square or oval or triangle.
6. the good relay bottom of positioning stablity when can realize quadric injection mould and uniformity according to Claims 2 or 3 or 4
Holder structure, it is characterised in that：The cross section of the positioning hole is polygon.
7. positioning stablity according to claim 1 when can realize quadric injection mould and the good relay base knot of uniformity
Structure, it is characterised in that：The location division is to form two positioning sides on the other end of bobbin after bobbin is once molded
Groove.
8. positioning stablity according to claim 1 when can realize quadric injection mould and the good relay base knot of uniformity
Structure, it is characterised in that：The location division is to be arranged on the iron core of coil block and correspond at the bobbin other end
Position square groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231527.4A CN105826132B (en) | 2016-04-14 | 2016-04-14 | Positioning stablity and uniformity good relay base structure when can realize quadric injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231527.4A CN105826132B (en) | 2016-04-14 | 2016-04-14 | Positioning stablity and uniformity good relay base structure when can realize quadric injection mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105826132A CN105826132A (en) | 2016-08-03 |
| CN105826132B true CN105826132B (en) | 2017-12-19 |
Family
ID=56526817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610231527.4A Active CN105826132B (en) | 2016-04-14 | 2016-04-14 | Positioning stablity and uniformity good relay base structure when can realize quadric injection mould |
Country Status (1)
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| CN (1) | CN105826132B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19627845C1 (en) * | 1996-07-10 | 1997-09-18 | Siemens Ag | Electromagnetic relay assembled at lowest cost and highest precision |
| CN2544410Y (en) * | 2002-05-29 | 2003-04-09 | 宁波福特继电器有限公司 | Ultrasmall high sensitivity relay |
| CN100424802C (en) * | 2005-09-22 | 2008-10-08 | 厦门宏发电声有限公司 | Electronic magnetic relay |
| CN201527934U (en) * | 2009-09-22 | 2010-07-14 | 厦门宏发电声股份有限公司 | Electromagnetic relay |
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2016
- 2016-04-14 CN CN201610231527.4A patent/CN105826132B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105826132A (en) | 2016-08-03 |
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