CN105826132A - Relay base structure capable of realizing positioning stability and good consistency during secondary injection molding - Google Patents
Relay base structure capable of realizing positioning stability and good consistency during secondary injection molding Download PDFInfo
- Publication number
- CN105826132A CN105826132A CN201610231527.4A CN201610231527A CN105826132A CN 105826132 A CN105826132 A CN 105826132A CN 201610231527 A CN201610231527 A CN 201610231527A CN 105826132 A CN105826132 A CN 105826132A
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- China
- Prior art keywords
- bobbin
- base structure
- relay base
- location
- injection mould
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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
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- 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 a relay base structure capable of realizing positioning stability and good consistency during secondary injection molding. The relay base structure includes a coil rack and two copper leading-out sheets which are formed on one end of the coil rack during primary injection molding and serve as coil leading-out pins, and the other end of the coil rack is not provided with copper leading-out sheets, but the other end of a coil component is provided with a positioning part used for realizing positioning with an injection mold during secondary injection molding, so that when corresponding positions of the two copper leading-out sheets of the one end of the coil rack and a static spring belt adopt laser welding positioning, the positioning part can enable the coil component to realize positioning in a preset direction. Through improvement of a relay base structure, internal stress generated after integral injection molding of a coil due to deformation of the static spring belt can be eliminated, leading-out terminals of a relay can be guaranteed to be straight after integral injection molding, and thus efficient automated production can be realized and performance can be guaranteed.
Description
Technical field
The present invention relates to relay technical field, particularly relate to a kind of be capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good.
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 leading-out terminal, coil block, coil leading-out terminal, and this portion envelops connects into an overall parts of plastics.Wherein, coil block includes bobbin, the copper cash being wound on bobbin, iron core and copper lead-out tablet, wherein, bobbin is to wrap up connecting by iron core and these two parts of copper lead-out tablet forming an overall parts of plastics, and bobbin is fabricated to can be with the frame configuration of coiling copper cash.
The base portion of this electromagnetic relay, in manufacturing process, needs to carry out twice Shooting Technique.Shooting Technique is that by injection-moulded plastic, iron core, copper lead-out tablet are formed an one-piece parts comprising bobbin for the first time, forms coil block after coiling copper cash, and copper lead-out tablet has four corners laying respectively at bobbin.And second time Shooting Technique be coil block is moulded in quiet spring band together with, quiet spring band includes 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 once injection, coil block 100 has four copper material lead-out tablets 101, these four copper material lead-out tablets 101 are to form one when injection for the first time with bobbin 102, four copper material lead-out tablets 101 are distributed in two ends of bobbin 102, and often end is respectively arranged with two copper material lead-out tablets 101.Four copper material lead-out tablets 101 at coil block two ends are placed on quiet spring band 200 correspondence position, laser welding is carried out by copper material lead-out tablet 101 and quiet spring band 200 correspondence position, then this integral part is sent in mould and carries out integral molded plastic parcel so that the relay leading-out terminal 201 on quiet spring band 200 reconnects into an entirety with coil block 100 by injection molding manner.
The big drawback that prior art exists is: after coil block 100 and quiet spring band 200 carry out secondary combinatorial injection molding shaping and cut off by redundance on quiet spring band 200, relay leading-out terminal 201 there will be crooked skew (as shown in Figure 2 and Figure 3).Leading-out terminal 201 occurs that skew can cause production cannot realize automatic high-efficiency manufacture, in some instances it may even be possible to can damage manufacture equipment；The crooked skew of leading-out terminal 201 simultaneously also can affect client and install and use relay, makes installation not in place, and then brings hidden danger of quality.
Summary of the invention
It is an object of the invention to overcome the deficiency of prior art, there is provided a kind of and be capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, by the improvement to relay base structure, produced internal stress during can eliminating quiet spring band and coil integral molded plastic, after can ensure that integral molded plastic, the leading-out terminal of relay is straight such that it is able to realizes high-efficient automatic and produces and ensure relay performance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of be capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, two copper material lead-out tablets as coil leading foot of bobbin one end it are formed at when including bobbin and being once molded, the other end at bobbin is not provided with copper material lead-out tablet, but when the other end of coil block arranges quadric injection mould for realizing the location division of location with injection mold, when using laser welding location with the correspondence position of two copper material lead-out tablets in bobbin one end with quiet spring band, described location division can make coil block realize location on preset direction.
Described location division is at least one hole, location being formed on the other end of bobbin after bobbin is once molded.
Described location division is the hole, a location being formed on the other end of bobbin after bobbin is once molded.
Described location division is the hole, two location being formed on the other end of bobbin after bobbin is once molded.
The cross section in hole, described location is circular square or oval or triangle.
The cross section in hole, described location is polygon.
Described location division is two the location square grooves being formed on the other end of bobbin after bobbin is once molded.
Described location division is to be arranged on the iron core of coil block and correspond to the location square groove at the bobbin other end.
Compared with prior art, the invention has the beneficial effects as follows:
Due to the fact that the other end that have employed at bobbin is not provided with copper material lead-out tablet, but when the other end of coil block arranges quadric injection mould for realizing the location division of location with injection mold, when using laser welding location with the correspondence position of two copper material lead-out tablets in bobbin one end with quiet spring band, described location division can also realize location on preset direction.This structure of the present invention, laser welding is carried out by retaining two copper material leading-out terminals (i.e. copper material lead-out tablet) of bobbin one end, realize the location of coil block and quiet spring band, prevent coil block from offseting at vertical and horizontal, the iron core endface position making coil block is reliable, the position location of injection mold when iron core end face is used as secondary combinatorial injection molding.Carry out coordinating of the other end with injection mold by being arranged on the other end of location division of coil block, it is achieved the overall transverse direction and longitudinal direction location of coil block simultaneously.Owing to coil block is only one end and quiet spring band laser welding, the other end does not directly contact with quiet spring band, and the coil block slight position skew that therefore the iron core end face of laser welding side causes when positioning will not the and then skew of band dynamic and static spring band entirety.After secondary combinatorial injection molding during the cooling meat of plastics, the contraction of plastics can produce a crimp to coil block, makes coil block position have slight shift.And based on above-mentioned same reason, the slight shift of coil block is also not result in quiet spring band overall offset.The torsion offset problem of the relay base part leading-out terminal formed after therefore can effectively overcoming secondary combinatorial injection molding.
Meanwhile, coordinate with injection mold by being not provided with that increase location division, one end of copper material lead-out tablet at coil block, it is achieved the overall transverse direction and longitudinal direction location of coil block.The location division being arranged on coil block carries out coordinating location with injection mold, owing to this location does not directly contact with quiet spring band, therefore quiet spring band can will not be made due to the skew of coil block and the contraction of plastics to produce skew and to reverse improving injection precision further when.
This location division is not directly connected with quiet spring band, realize coil block, quiet spring band positions two-by-two with mould, therefore during parts of plastics injection, the deformation of quiet spring band can be discharged by this one end that location division positions, it is not transferred on the relay leading-out terminal that is connected with quiet spring band, after can ensure that integral molded plastic, the leading-out terminal of relay is straight, it is achieved high-efficient automatic produces and ensures performance.
Below in conjunction with drawings and Examples, the present invention is described in further detail；But positioning stablity when being capable of quadric injection mould of the present invention and the good relay base structure of concordance are not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is the relay base structure of prior art schematic diagram when matching with quiet spring band before quadric injection mould；
Fig. 2 is the relay base structure of prior art D structure schematic diagram after quadric injection mould and after the shearing of quiet spring band；
Fig. 3 is the relay base structure of prior art front view 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 embodiment one present invention；
Fig. 5 is the schematic diagram of the coil block (upset one side) of the relay base structure of embodiment one present invention；
Fig. 6 is that the coil block (upset one side) of the relay base structure of embodiment one present invention is not around the schematic diagram of copper cash state；
Fig. 7 is the relay base structure of embodiment one present invention schematic diagram when matching with quiet spring band before quadric injection mould；
Fig. 8 is the relay base structure of embodiment one present invention schematic diagram of (upset one side) when matching with quiet spring band before quadric injection mould；
Fig. 9 is the relay base structure of present invention D structure schematic diagram after quadric injection mould and after the shearing of quiet spring band；
Figure 10 is the D structure schematic diagram that the relay base structure of the present invention (overturns one side) after quadric injection mould and after the shearing of quiet spring band；
Figure 11 is the front view of relay base structure shown in Fig. 9；
Figure 12 is that the coil block of the relay base structure of embodiment two present invention is not around the schematic diagram of copper cash state；
Figure 13 is the relay base structure of embodiment two present invention schematic diagram when matching with quiet spring band before quadric injection mould；
Figure 14 is that the coil block of the relay base structure of embodiment three present invention is not around the schematic diagram of copper cash state；
Figure 15 is the relay base structure of embodiment three present invention schematic diagram when matching with quiet spring band before quadric injection mould；
Figure 16 be the relay base structure of embodiment four present invention coil block not around copper cash state schematic diagram；
Figure 17 is the schematic diagram of the iron core of the coil block of the relay base structure of embodiment four present invention；
Figure 18 is the relay base structure of embodiment four present invention schematic diagram when matching with quiet spring band before quadric injection mould.
Detailed description of the invention
Embodiment one
Shown in Figure 4, the present invention a kind of is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, two copper material lead-out tablets 11 as coil leading foot of bobbin 1 one end it are formed at when including bobbin 1 and being once molded, the other end at bobbin 1 is not provided with copper material lead-out tablet, but when the other end of coil block arranges quadric injection mould for realizing the location division of location with injection mold, when using laser welding location with the correspondence position of two copper material lead-out tablets in bobbin one end with quiet spring band, described location division can make coil block realize location on preset direction.Coil block includes bobbin, iron core, copper lead-out tablet and copper cash, and Shooting Technique is that by injection-moulded plastic, iron core 3, copper lead-out tablet 11 are formed an one-piece parts comprising bobbin 1 for the first time, forms coil block 10 after coiling copper cash 15.
In the present embodiment, this location division is two the location square grooves 12 being formed on the other end of bobbin 1 after bobbin 1 is once molded.
nullReferring again to shown in Fig. 1 to Fig. 3，In prior art，Relay base structure is after once injection，Coil block 100 has four copper material lead-out tablets 101，Wherein two copper material lead-out tablets 101 of one end are used for connecting copper cash as coil leading foot，Other end of two copper material lead-out tablets 101 do not realize the function that relay needs，These four copper material lead-out tablets 101 are usually used to when quadric injection mould play the role of positioning，Realize longitudinal and horizontal general location，This relay base structure of prior art，Although bobbin welds positioning stablity after positioning by four lead-out tablets 101 with quiet spring band 200，But owing to quiet spring band 200 itself exists problem on deformation，And the size of quiet spring band 200 cannot accomplish completely the same，Therefore bobbin can produce slight deformation when of fixing coordinate with injection mold with quiet spring band 200 4 end laser welding，This deformation cannot solve by improving dimensional accuracy further，And improving cost is the highest.This deformation is after integral molded plastic, cannot can be eliminated voluntarily by plastic wraps solidification, therefore an internal stress can be produced, internal stress can cause the relay leading-out terminal 201 being connected on quiet spring band to distort, the leading-out terminal of relay the most straight (as shown in Figure 2 and Figure 3) after causing injection, while affecting performance, also cannot realize automatic high-efficiency manufacture.
See shown in Fig. 4 to Figure 11, the present invention a kind of is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, for prior art, laser welding is carried out by retaining two copper material leading-out terminals (i.e. copper material lead-out tablet) 11 of bobbin 1 one end, realize the location of coil block 10 and quiet spring band 2, prevent coil block 10 from offseting at vertical and horizontal, iron core end face 31 position making the iron core 3 of coil block 10 is reliable, the position location of injection mold when iron core end face 31 is used as secondary combinatorial injection molding.Simultaneously by being arranged on the other end of location division of coil block 10 (i.e. two location square grooves 12 of bobbin 1) with injection mold (such as, injection mold can be by arranging contact pin or latch be inserted in two location square grooves 12) carry out the cooperation of the other end, it is achieved the overall transverse direction and longitudinal direction location of coil block 10.Owing to coil block 10 is only one end and quiet spring band 2 laser welding, the other end does not directly contact with quiet spring band 2, and the coil block 10 slight position skew that therefore the iron core end face 31 of laser welding side causes when positioning will not the overall and then skew of band dynamic and static spring band 2.After secondary combinatorial injection molding during the cooling meat of plastics, the contraction of plastics can produce a crimp to coil block 10, makes coil block 10 position have slight shift.And based on above-mentioned same reason, the slight shift of coil block 10 is also not result in quiet spring band 2 overall offset.The torsion offset problem of the relay base part leading-out terminal formed after therefore can effectively overcoming secondary combinatorial injection molding.
Meanwhile, coordinate with injection mold by being not provided with that increase location division, one end (i.e. two of bobbin 1 location square grooves 12) of copper material lead-out tablet at coil block 10, it is achieved the overall transverse direction and longitudinal direction of coil positions.The location division (i.e. two location square grooves 12 of bobbin 1) being arranged on coil carries out coordinating location with injection mold, owing to this location does not directly contact with quiet spring band 2, the coil other end is exactly in free movement state for quiet spring band 2, therefore quiet spring band 2 can will not be made due to the skew of coil block 10 and the contraction of plastics to produce skew and to reverse improving injection precision further when.
This location division (i.e. two location square grooves 12 of bobbin 1) is not directly connected with quiet spring band 2, realize coil block 10, quiet spring band 2 positions two-by-two with mould, therefore during parts of plastics injection, the deformation of quiet spring band 2 can be discharged by this one end that location division positions, it is not transferred on the relay leading-out terminal 21 that is connected with quiet spring band, after can ensure that integral molded plastic, the leading-out terminal 21 of relay is straight, it is achieved high-efficient automatic produces and ensures performance.
Embodiment two
See shown in Figure 12 to Figure 13, the present invention a kind of is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, being with the difference of embodiment one, location division is the hole 13, two location being formed on the other end of bobbin after bobbin is once molded.
Wherein, this hole, location 13 is circular port, and the cross section i.e. positioning hole is circle.
Certainly, the cross section in hole, location can also be square or oval or triangle, or polygon etc..
Embodiment three
See shown in Figure 14 to Figure 15, the present invention a kind of is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, being with the difference of embodiment one, location division is the hole 14, a location being formed on the other end of bobbin after bobbin is once molded.
Wherein, this hole, location 14 is circular port.
Embodiment four
See shown in Figure 16 to Figure 18, the present invention a kind of is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, being with the difference of embodiment one, described location division is to be arranged on the iron core 3 of coil block and correspond to the location square groove 32 at the bobbin other end.
Iron core 3 is installed in bobbin, belongs to a part for coil block 10, and location square groove 32 is the wherein one end being located at iron core 3, and this end of iron core 3 is also at the bobbin other end.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any pro forma restriction to the present invention.Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those of ordinary skill in the art, in the case of without departing from technical solution of the present invention scope, technical solution of the present invention is made many possible variations and modification by the technology contents that all may utilize the disclosure above, or is revised as equivalents Equivalent embodiments.Therefore, every content without departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should fall in the range of technical solution of the present invention is protected.
Claims (8)
1. one kind is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, it is characterized in that: when including bobbin and be once molded, be formed at two copper material lead-out tablets as coil leading foot of bobbin one end, the other end at bobbin is not provided with copper material lead-out tablet, but when the other end of coil block arranges quadric injection mould for realizing the location division of location with injection mold, when using laser welding location with the correspondence position of two copper material lead-out tablets in bobbin one end with quiet spring band, described location division can make coil block realize location on preset direction.
The most according to claim 1 it is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, it is characterised in that: described location division is at least one hole, location being formed on the other end of bobbin after bobbin is once molded.
The most according to claim 2 it is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, it is characterised in that: described location division is the hole, a location being formed on the other end of bobbin after bobbin is once molded.
The most according to claim 2 it is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, it is characterised in that: described location division is the hole, two location being formed on the other end of bobbin after bobbin is once molded.
5. according to the relay base structure that positioning stablity when being capable of quadric injection mould described in Claims 2 or 3 or 4 and concordance are good, it is characterised in that: the cross section in hole, described location is circular square or oval or triangle.
6. according to the relay base structure that positioning stablity when being capable of quadric injection mould described in Claims 2 or 3 or 4 and concordance are good, it is characterised in that: the cross section in hole, described location is polygon.
The most according to claim 1 it is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, it is characterised in that: described location division is two the location square grooves being formed on the other end of bobbin after bobbin is once molded.
The most according to claim 1 it is capable of the relay base structure that positioning stablity and concordance during quadric injection mould are good, it is characterised in that: described location division is to be arranged on the iron core of coil block and correspond to the location square groove at the bobbin other end.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN105826132A true CN105826132A (en) | 2016-08-03 |
| CN105826132B CN105826132B (en) | 2017-12-19 |
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| 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 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225190A (en) * | 1996-07-10 | 1999-08-04 | 西门子公司 | Process for manufacturing an electromagnetic relay |
| CN2544410Y (en) * | 2002-05-29 | 2003-04-09 | 宁波福特继电器有限公司 | Ultrasmall high sensitivity relay |
| CN1937133A (en) * | 2005-09-22 | 2007-03-28 | 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 |
-
2016
- 2016-04-14 CN CN201610231527.4A patent/CN105826132B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225190A (en) * | 1996-07-10 | 1999-08-04 | 西门子公司 | Process for manufacturing an electromagnetic relay |
| CN2544410Y (en) * | 2002-05-29 | 2003-04-09 | 宁波福特继电器有限公司 | Ultrasmall high sensitivity relay |
| CN1937133A (en) * | 2005-09-22 | 2007-03-28 | 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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| Publication number | Publication date |
|---|---|
| CN105826132B (en) | 2017-12-19 |
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