CN209199768U - A kind of positioning device and metallization jig for magnetic core - Google Patents

Abstract

This application provides a kind of positioning devices for magnetic core, including the first, second positioning steel disc, first positioning steel disc is divided into multiple first array elements, first array element includes multiple first steel disc mesh, and spaced the first protrusion of multiple groups and the second protrusion are offered on two apparent surfaces of the first steel disc mesh；Second positioning steel disc is divided into multiple second array units, and second array unit includes multiple second steel disc mesh, and the second steel disc mesh includes the first open end and the second open end, and the second open end is bonded with the first steel disc mesh, and smaller than the first open end；One group of magnetic core is positioned in the first steel disc mesh by the second steel disc mesh, and one group of first protrusion and the second protrusion are equipped between adjacent two magnetic cores in every group.The positioning device can make magnetic core can smoothly enter into the first positioning steel disc mesh, and will not be moved through wherein mostly and more than tolerance is required, and the magnetic core consistency after plated film is preferable.Present invention also provides the metallization jigs of magnetic core.

Description

A kind of positioning device and metallization jig for magnetic core

Technical field

The utility model relates to magnetic core coating technique field more particularly to a kind of positioning devices and metallization for magnetic core Jig.

Background technique

Currently, wound chip inductor is generally to ferrocart core, the material that ferrite is representative in circuit board paster technique Material is as magnetic core and supports skeleton, and fine copper wire coiling is used on magnetic core, and coil both ends draw be fixed on Skeleton Table respectively Wheat flour positioning sets to form electrode, to enable the lead of coil to be reliably welded on magnetic core surface, generally requires in advance to magnetic The end face of core covers metal film according to certain figure, this technique is referred to as the metallization of magnetic core.It is winding-type chip electricity The difficult point inducted during producing, the ratio that process costs account for entire device cost are up to 60%.

As the PVD process for substituting traditional water power depositing process, metal can specifically be exposed by needing to enter magnetic core proper alignment Change the exposure mask jig of end face, be then pushed into vacuum chamber and carry out plated film, since the PVD jig structure of magnetic core is complicated, and magnetic core is being put It sets in the jig and easily moves, easily deviated so as to cause PVD coating, the problems such as magnetic core consistency after plated film is poor.

Utility model content

In view of this, the present invention provides a kind of positioning device for magnetic core and metallization jigs, to solve magnetic Core is deviated excessive wherein and is influenced the plated film on magnetic core the problem of.

Specifically, in a first aspect, the utility model provides a kind of positioning device for magnetic core, comprising: be stacked First positioning steel disc and second positioning steel disc, wherein it is described first positioning steel disc is divided into multiple first array elements, institute Stating the first array element includes the multiple first steel disc mesh being intervally arranged, and the first steel disc mesh includes perpendicular to first party To first surface and second surface, relative spacing setting is offered on the first surface and the second surface and is parallel to The first protrusion of multiple groups of first direction and the second protrusion；The second positioning steel disc is divided into multiple second array units, institute Stating second array unit includes the multiple second steel disc mesh being intervally arranged, and the second steel disc mesh includes be oppositely arranged One open end and the second open end, the size of first open end are greater than second open end, second open end with The first steel disc mesh fits；One group of magnetic core is positioned at the first steel disc mesh by the second steel disc mesh In, and equipped with the first protrusion described in one group and the second protrusion between adjacent two magnetic cores in every group of magnetic core.

Wherein, every magnetic core includes electrode district and non-electrode region, between the first protrusion and the second protrusion described in one group between Stand-off distance is from the width for being greater than or equal to the non-electrode region.

Wherein, the spacing between two neighboring first protrusion is not more than the length of the non-electrode region.

Wherein, the size of second open end is bigger than the size of the first steel disc mesh.

Wherein, along first open end to the direction of second open end, the second steel disc mesh is divided into first Accommodating space and the second accommodating space, wherein the size of first accommodating space is bigger than the size of second accommodating space.

The second steel disc in the positioning device for magnetic core that the utility model first aspect provides, in the second positioning steel disc Mesh is wide at the top and narrow at the bottom, it can be passed through convenient for magnetic core and is positioned in the first steel disc mesh of steel disc into first, wherein upper width can Prevent occurring card slot phenomenon in magnetic core placement process, be conducive to improve production efficiency, under narrow make coating shape on subsequent magnetic core More precisely；And the setting of the protrusion of multiple groups first described in the first steel disc mesh and second protrusion, it can will place wherein One group of magnetic core in every magnetic core preferably position, prevent magnetic core or so offset excessive and cause the offset of coating thereon, And then solves the problems such as magnetic core consistency after plated film is poor.

Second aspect, the utility model provide a kind of metallization jig for magnetic core, and the metallization jig includes Chassis and cover board, the chassis include bracket, and are cascadingly set on the steel mesh piece on the bracket and above-mentioned positioning Device；Wherein, the bracket is divided into multiple third array elements；The steel mesh piece is divided into multiple 4th array lists Member, the 4th array element include the multipair steel mesh mesh being intervally arranged, and a pair of steel mesh mesh is used to place one Electrode district needed for exposing every magnetic core after magnetic core；4th array element is located at the forward projection region of the bracket, and by institute The covering of third array element is stated, first array element is located at the forward projection region of the steel mesh piece, and by the 4th array Unit covering.

Wherein, each pair of steel mesh mesh includes the first aperture and the second aperture, first aperture and the second aperture phase To being arranged and having gap between the two, the gap between first aperture and the second aperture is used to cover the non-electrical of every magnetic core Polar region.

Wherein, the size of the electrode district of the size of first aperture and second aperture and every magnetic core matches.

Wherein, the thickness of the second positioning steel disc is more thinner than the thickness of every magnetic core.

Wherein, the cover board is bonded by hard metal plate and softwood backing strap, and the softwood backing strap is used for and described second It is staggered relatively to fix magnetic core to position steel disc.

The metallization jig for being used to place magnetic core that the utility model second aspect provides, the structure of the metallization jig Simply, low in cost, may be implemented in large volumes, quickly and easily place magnetic core, be conducive to improve magnetic core placement efficiency, one Every magnetic core in group magnetic core can be positioned preferably in the metallization jig, will not be moved through more and be more than requirement public affairs Difference, and then the consistency of coating obtained by plated film is higher on magnetic core.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the metallization jig of magnetic core provided by the utility model；

Fig. 2 is the top view of the first positioning steel disc of positioning device in metallization jig in Fig. 1；

Fig. 3 is the enlarged drawing of the first steel disc mesh in Fig. 2；

Fig. 4 is the top view of the second positioning steel disc in positioning device；

Fig. 5 is the structural schematic diagram of the second steel disc mesh in Fig. 4, and (a) is top view, (b) is left view；

Fig. 6 is the partial top view of the positioning device after assembling；

Fig. 7 is the structural schematic diagram of a magnetic core to be placed；

Fig. 8 is the structural schematic diagram of bracket in metallization jig in Fig. 1；

Fig. 9 is the structural schematic diagram of steel mesh piece in metallization jig in Fig. 1；

Figure 10 is the enlarged drawing of steel mesh mesh in Fig. 9.

Specific embodiment

As described below is the preferred embodiment of the application, it is noted that for those skilled in the art For, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also considered as The protection scope of the application.

The utility model provides a kind of positioning device for magnetic core and the metallization jig with the positioning device.Ginseng See Fig. 1, which includes chassis 1 and cover board 2, and the chassis 1 includes bracket 11, and is cascadingly set on the branch Steel mesh piece 12 and positioning device 30 on frame 11.

Positioning device 30 is first introduced below.Positioning device 30 includes that fixed the first positioning steel disc 31 and the second positioning is laminated Steel disc 32.Referring to Figure 2 together and Fig. 3, the first positioning steel disc 31 is divided into multiple first array element 31a, described First array element 31a includes the multiple first steel disc mesh 310 being intervally arranged, and the first steel disc mesh 310 includes vertical In the first surface 310a and second surface 310b, the first surface 310a of first direction (arrow direction in Fig. 3) and institute State multiple groups the first protrusion 311 and the second protrusion for being provided with relative spacing setting on second surface 310b and being parallel to first direction 312。

Referring to Figure 4 together and Fig. 5, the second positioning steel disc 32 is divided into multiple second array unit 32a, described Second array unit 32a includes the multiple second steel disc mesh 320 being intervally arranged, and the second steel disc mesh 320 includes opposite The size of the first open end 321 and the second open end 322 being arranged, first open end 321 is greater than second open end 322, second open end 322 fits with the first steel disc mesh 310；One group of magnetic core passes through the second steel disc mesh 320 and be positioned in the first steel disc mesh 310, and the described in being equipped with one group between adjacent two magnetic cores in every group of magnetic core One protrusion 311 and the second protrusion 312.

It should be noted that above-mentioned " first direction " referred to can be the arrangement side perpendicular to the magnetic core in one group of magnetic core To.Such as in Fig. 3, first steel disc mesh 310 can horizontally more magnetic cores placed side by side, at this point, the first direction is The width direction of first steel disc mesh 310.

In the arrangement mode of the first steel disc mesh 310 in the first positioning steel disc 31 and the second positioning steel disc 32 The second steel disc mesh 320 arrangement mode it is identical, so just be convenient for every group of magnetic core smooth placement.With the first positioning steel disc 31 For, the first positioning steel disc 31 is divided with 6 × 4 array format by the first array element 31a, each first array element 31a Including the first steel disc mesh 310 by 6 longitudinal arrangements.Each steel disc mesh 310 can accommodate side by side 7 magnetic cores (referring to Fig. 2).Optionally, there are holes for the surrounding of the first array element 31a and second array unit 32a, for realizing the first positioning Steel disc 31 is fixedly connected with the second positioning steel disc 32.

The partial top view such as Fig. 6 institute for the positioning device 30 that first positioning steel disc 31 and the second positioning steel disc 32 are assembled into Show.Wherein, for convenient for being put into magnetic core, the size of first open end 321 is more bigger than the size of the second open end 322, such as Big 0.1-0.15mm (being all suitable for up and down with left and right directions).The size of second open end 322 is than the first steel disc mesh 310 size is bigger.Optionally, the size of the second open end 322 is 1-1.5% bigger than the size of the first steel disc mesh 310.Such as The size of second open end 322 is (more upper and lower than size 0.1-0.15mm big (being specifically as follows 0.1mm) of the first steel disc mesh 310 It is all suitable for left and right directions).Magnetic core can be convenient for putting from larger-size first open end 321 of the second steel disc mesh 320 in this way Enter, then can smoothly enter into the first steel disc mesh 310 of the first positioning steel disc 31 by the second open end 322, in every magnetic core It is not in card slot phenomenon when between two group of first adjacent protrusion and the second protrusion, the placement efficiency of magnetic core is higher.And And after magnetic core plated film, taken out from the positioning device with being relatively easy to.

Further, referring to (b) in Fig. 5, along first open end 321 to the direction of second open end 322, institute It states the second steel disc mesh 320 and has been divided into the first accommodating space 320a and the second accommodating space 320b, wherein first receiving The size of space 320a is bigger than the size of the second accommodating space 320b.And the outlet size of the second accommodating space 320b (i.e. the second open end 322) is more bigger than the size of the first steel disc mesh 310.In the present embodiment, the second steel disc mesh 320 space is up big and down small, stepped.Optionally, in the other embodiments of the application, the second steel disc mesh 320 Vertical sectional shape can also in inverted trapezoidal or shrink it is tubaeform etc., can make magnetic core when through the second steel disc mesh 320 more It is smooth without hindrance.

By upper description it is found that above-mentioned first protrusion 311 perpendicular to the first steel disc mesh 310 first surface 310a, second Protrusion 312 is phase based on first surface 310a and second surface 310b perpendicular to the second surface 310b of the first steel disc mesh 310 Setting is oppositely arranged so one first protrusion 311 and second protrusion 312 are that occur in group, and its setting direction is flat Row is in first direction；The first protrusion 311 and the second protrusion 312 in every group have gap, convenient for supporting the both ends of a magnetic core, And there are one group of first protrusion 311 and the second protrusion 312 between two adjacent magnetic cores.

Fig. 7 is the structural schematic diagram of a magnetic core to be placed, which includes electrode district 4a and non-electrode region 4b (Fig. 7 In white area be non-electrode region, dash area is electrode district).In Fig. 7, l1 represents the maximum length of magnetic core, magnetic core both sides For electrode district 4a, centre is non-electrode region 4b, and d2 represents the width of non-electrode region 4b, the width for the electrode district 4a that c1 is represented, figure In (2c1+d2) represent the width of magnetic core.

In conjunction with Fig. 3, for one group of first protrusion 311 and the second protrusion 312, the first protrusion 311 and the second protrusion 312 Between clearance distance Δ d, can be greater than or equal to magnetic core non-electrode region width d2.And it is first convex for adjacent two The distance between 311 Δ l are played, it can be no more than the length l1 (that is, maximum length l1 of magnetic core) of the non-electrode region of magnetic core.It is similar Ground, the distance between two adjacent second protrusions 312 Δ l are also not more than the length l1 of the non-electrode region of magnetic core.It can make in this way Magnetic core will not control offset excessively between two groups of adjacent first protrusions and the second protrusion, guarantee that one group of magnetic core can be first Proper alignment in steel disc mesh 310.

It is understood that the structure of the first protrusion 311 and the second protrusion 312 can be identical, now with the first protrusion 311 Structure is specifically described, and the structure of the first protrusion 311 includes but is not limited to following implementation:

In the embodiment of the application, referring to Fig. 3, first protrusion 311 includes sequentially connected first side Wall, second sidewall and third side wall, wherein the first side wall and third side wall are adjacent respectively at first surface 310a.These three sides Wall surrounds the cavity for concaving towards second surface 310b.In other words, the first protrusion 311 constitutes class door type structure at this time.

In the another embodiment of the application, first protrusion 311 is solid block, with seamless welding The alternate first surface 310a for being set to the first steel disc mesh 310 of mode on.In other words, the first protrusion 311 is one at this time The solid member of cuboid, mechanical strength with higher can more stably position magnetic core.

In the positioning device 30 for magnetic core that the utility model embodiment first aspect provides, in the second positioning steel disc 32 The second steel disc mesh 320 it is wide at the top and narrow at the bottom, can convenient for magnetic core pass through it into first positioning steel disc 31 the first steel disc net In hole 310, wherein upper width can prevent occurring card slot phenomenon in magnetic core placement process, be conducive to improve and place efficiency, under narrow make Coating shape is more accurate on subsequent magnetic core；And the protrusion of multiple groups first described in the first steel disc mesh 310 311 and the second protrusion 312 setting can preferably position the every magnetic core placed in one group of magnetic core therein, prevent magnetic core or so offset excessive And the offset of coating thereon is caused, and then solve the problems such as magnetic core consistency after plated film is poor.

A kind of metallization jig for placing magnetic core provided by the embodiment of the utility model, including chassis 1 and cover board 2, it is described Chassis 1 includes bracket 11, and stacks gradually the steel mesh piece 12 being fixedly arranged on the bracket 11 and positioning device 30.Wherein, fixed First positioning steel disc 31 of position device 30 fits with the steel mesh piece 12.

Wherein, the bracket 11 is divided into multiple third array element 11a；The steel mesh piece 12 is divided into multiple Four array element 12a, the 4th array element 12a include the multipair steel mesh mesh 121 being intervally arranged, the steel mesh mesh 121 are used for the electrode district needed for exposing every magnetic core after placing a magnetic core.Wherein, the 4th array element 12a is located at The forward projection region of the bracket 11, and the third array element 11a is covered, the first array element 31a is located at described The forward projection region of steel mesh piece 12, and the 4th array element 12a is covered.Optionally, the 4th array element 12a and institute The orthographic projection for stating third array element 11a is overlapped, and the orthographic projection of the first array element 31a is by the 4th array element The orthographic projection of 12a is completely covered.

In the present embodiment, the bracket 11 is divided into multiple third array elements of 6 × 4 array format arrangement 11a, each third array element 11a is a grid；Steel mesh piece 12 is with 6 × 4 array format by multiple 4th array elements 12a is divided, and each 4th array element 12a includes the multipair steel mesh mesh 121 arranged in 7 × 6 form, each pair of steel mesh mesh 121 include the first aperture 1211 and the second aperture 1212, the first aperture 1211 and the second aperture 1212 be oppositely arranged and the two it Between have a gap, the gap of a pair of first aperture 1211 and the second aperture 1212 is used to cover the non-electrode region of every magnetic core.

In the present embodiment, third array element 11a, the 4th array element 12a, the first array element 31a, second array list First 32a is rectangle.The shape of electrode district of the shape of the steel mesh mesh 121 and magnetism matches, can be rectangle or Square is trapezoidal for class as shown in Figures 9 and 10.

Wherein, size phase of the size of the first aperture 1211 and the second aperture 1212 with the electrode district 4a of the magnetic core Match.When magnetic core two sides electrode district to be prepared is not quite identical, the size of the first aperture 1211 and the second aperture 1212 can also With inconsistent, as long as being matched respectively with the size of upper and lower two electrode district.Preferably, the first aperture 1211 and the second aperture 1212 size is 3-7% smaller than the size of the electrode district 4a of magnetic core.

As described above, the gap of a pair of first aperture 1211 and the second aperture 1212 is for covering the non-electrode of every magnetic core Area, therefore, gap and the size phase of the non-electrode region 4b of the magnetic core between the first aperture 1211 and the second aperture 1212 Match.That is, the width d2 of magnetic core non-electrode region 4b is equal to the first aperture 1211 and the second aperture in each pair of steel mesh mesh in steel mesh piece 2 1212 spacing distance (for Fig. 9 as the meaning that the d2 in Figure 10 is represented, the h in Fig. 9 represents the width of steel mesh mesh 121). Preferably, the width h of steel mesh mesh 121 is consistent with the width of the first steel disc mesh 310.

In the utility model, bracket 11 is metallization jig overall deformation, and predominantly steel mesh piece 12, positioning in order to prevent The fixed of device 30 provides support, and provides cover board 2 hole required with the fixation on chassis 1.

Wherein, the cover board 2 is bonded by hard metal plate and softwood backing strap, and the softwood backing strap is used for and described second It is staggered relatively to position steel disc 32.

Preferably, the material of the softwood backing strap includes one of silica gel, fluorine silica gel and hardware cloth.The softwood backing strap It is made of soft material resistant to high temperature, and it is less to deflate at high temperature, in case metallization jig makes under high vacuum hot environment Used time has excessive gas and releases in metallization jig, and then pollutes and sputter indoor vacuum environment.

The softwood backing strap is to guarantee that magnetic core can be with steel mesh in order to fix the magnetic core being placed in positioning device 30 Piece 12 is adjacent to, and is not crushed.In addition, magnetic core must be close to steel mesh piece 12, otherwise in the electrode district preparation of subsequent magnetic core, It will expand around being mapped to, cause the plated film of electrode district bad.

Wherein, the hard metal plate is made of metal on-deformable under high temperature, the hard metal plate include duralumin plate and One of stainless steel plate.In the utility model metallization jig by soft or hard combination material, under high vacuum hot environment The frangible magnetic core of energy device, and do not have excessive gas and released in metallization jig, magnetic core can be close to steel mesh, be convenient for The preparation of the electrode district of subsequent magnetic core.

As described above, the steel mesh mesh 121 is used for after magnetic core is placed on positioning device 30, is exposed needed for magnetic core Electrode district 4a.Therefore, the thickness of the first positioning steel disc 31 and the thickness of magnetic core are thin.It is further preferred that described first is fixed The thin 230-300% of thickness of the thickness and magnetic core of position steel disc 31.Optionally, the steel mesh 12 with a thickness of 0.10-0.30mm.

For needing in the edge plated film of magnetic core, when the metallization jig for placing magnetic core to be placed to use in turn (i.e. the cover board 2 of metallization jig is in contact with operating platform), electrode district 4a needed for thus exposing magnetic core, when plated film just Exposure mask can be saved, steel mesh piece 12 can inherently play the role of exposure mask, convenient for plating out the electrode district 4a of model needed for magnetic core.

In one embodiment of the utility model, the third array element 11a, the 4th array element 12a, the first array Unit 31a, second array unit 32a surrounding there are hole, to be used for the bracket 11, steel mesh piece 12, positioning device 30 Between fixation and the cover board of the chassis 1 and 12 fixation.

In the another embodiment of the utility model, the chassis 1 is also possible to one end with cover board 2 and is flexibly connected, After having placed magnetic core, then chassis 1 and the other end of cover board 2 be fixed.

The metallization jig provided by the embodiment of the utility model for being used to place magnetic core, the structure letter of the metallization jig It is single, it is low in cost, it may be implemented to place magnetic core in large volumes, and magnetic core is put into more convenient, is conducive to the placement for improving magnetic core Efficiency will not deviate excessively back and forth in the metallization jig in every magnetic core, the plated film of the electrode district of subsequent magnetic core can be improved Consistency.

The above only expresses the several embodiments of the application, and the description thereof is more specific and detailed, but can not be because This and be interpreted as the limitation to the application the scope of the patents.It should be pointed out that for those of ordinary skill in the art, Under the premise of not departing from the application design, various modifications and improvements can be made, these belong to the protection scope of the application. Therefore, the scope of protection shall be subject to the appended claims for the application patent.

Claims (10)

1. a kind of positioning device for magnetic core, which is characterized in that the positioning device includes the first positioning steel being stacked Piece and the second positioning steel disc, wherein the first positioning steel disc is divided into multiple first array elements, the first array list Member includes the multiple first steel disc mesh being intervally arranged, and the first steel disc mesh includes the first surface perpendicular to first direction And second surface, relative spacing setting is offered on the first surface and the second surface and is parallel to the more of first direction The first protrusion of group and the second protrusion；The second positioning steel disc is divided into multiple second array units, the second array list Member includes multiple second steel disc mesh for being intervally arranged, and the second steel disc mesh includes the first open end being oppositely arranged and the The size of two open ends, first open end is greater than second open end, second open end and first steel disc Mesh fits；One group of magnetic core is positioned in the first steel disc mesh by the second steel disc mesh, and every group of magnetic core In adjacent two magnetic cores between be equipped with one group described in first protrusion and second protrusion.

2. positioning device according to claim 1, which is characterized in that every magnetic core includes electrode district and non-electrode region, and one Clearance distance between group first protrusion and the second protrusion is greater than or equal to the width of the non-electrode region.

3. positioning device according to claim 2, which is characterized in that the spacing between two neighboring first protrusion is not Greater than the length of the non-electrode region.

4. positioning device according to claim 1, which is characterized in that the size of second open end is than first steel The size of piece mesh is big.

5. positioning device according to claim 4, which is characterized in that along first open end to second open end Direction, the second steel disc mesh is divided into the first accommodating space and the second accommodating space, wherein first accommodating space Size is bigger than the size of second accommodating space.

6. a kind of metallization jig for magnetic core, which is characterized in that the metallization jig includes chassis and cover board, the bottom Disk includes bracket, and is cascadingly set on steel mesh piece on the bracket and as described in any one in claim 1-5 Positioning device；Wherein, the bracket is divided into multiple third array elements；The steel mesh piece is divided into multiple 4th arrays Unit, the 4th array element include the multipair steel mesh mesh being intervally arranged, and a pair of steel mesh mesh is used to place one Electrode district needed for exposing every magnetic core after magnetic core；4th array element is located at the forward projection region of the bracket, and will The third array element covering, first array element are located at the forward projection region of the steel mesh piece, and by described 4th gust Column unit covering.

7. metallization jig according to claim 6, which is characterized in that each pair of steel mesh mesh include the first aperture and Second aperture, first aperture and the second aperture are oppositely arranged and have between the two gap, and first aperture is opened with second Gap between hole is used to cover the non-electrode region of every magnetic core.

8. metallization jig according to claim 7, which is characterized in that the ruler of first aperture and second aperture The very little size with the electrode district of every magnetic core matches.

9. metallization jig according to claim 6, which is characterized in that thickness every magnetic of ratio of the second positioning steel disc The thickness of core is thinner.

10. metallization jig according to claim 6, which is characterized in that the cover board is by hard metal plate and softwood backing strap It is bonded, the softwood backing strap is used for staggered relatively to fix magnetic core with the second positioning steel disc.