CN2591727Y - Inductance assembly - Google Patents

Abstract

The utility model relates to an inductance component, which comprises a coil and a coating body which is coated out of the coil, wherein, the coil is provided with a winding part composed of a conducting wire which is wound with prearranges number of turns along a central line and two extension parts which are outwards extended out of two ends of the winding part. The coating body is integrally coated out of the winding part of the coil.

Description

Inductive component

[technical field]

The utility model relates to a kind of Inductive component, particularly relates to a kind of integrated Inductive component.

[background technology]

The structure design of general Inductive component, can be with required characteristic and specification such as frequency, electric current, volume, inductance value ... Deng difference and different, the structure of Inductive component in the past as shown in Figures 1 and 2, be to include by permeability magnetic material such as the made cladding 10 of ferroalloy, and a coil 13 that is covered by in this cladding.

This cladding 10 include can one correspondence covers on next a base 11 and a top board 12.This base 11 have one by the one end face toward the tank 111 of lower recess, an and jack-post 110 that erectly is built up in these tank 111 centre.This tank 111 has two side opening ends 112.These top cover 12 summarys become tabular, have two spacing convave troughs 121 that down cave in by one end face two opposition sides, these top cover 12 correspondences cover the manufacture on this base 11, be to adopt at top cover 12 and base 11 joints to be coated with portion's viscose, and this two members gluing is integral.

It is one curved around the pitch of the laps portion 131 that pre-fixing turn forms along a central axis by radius ground such as rectangular flat leads that this coil 13 has, and two extensions 132 that extended outward by these pitch of the laps portion 131 two ends respectively.This pitch of the laps portion 131 is before top cover 12 is bonding on base 11 during assembling, elder generation's correspondence is contained in the tank 111 of this base 11, and the axle encapsulation is combined in jack-post 110 outsides of base 11, and this two extension 132 is corresponding respectively one high and one lowly these side opening ends 112 that pass this tank 111, then just can bind at these base 11 end faces by aforementioned top cover 12, and with coil 13 fixed limits 11 of top cover 12 and bases.Again, as shown in Figure 2, the outer end of this two extension 132 can optionally up and in opposite directions paste in this two groove 121 of top cover 12 bendingly.

In the manufacture process of above-mentioned Inductive component in the past, except the base 11 of this cladding 10 closes processing with the some gluing that top cover 12 is carried out, can cause its operation comparatively to bother and increase beyond the cost, its coil 13 is sleeved on the structure that is provided with in the tank 111 of base 11, because coil 13 is contained in 12 of base 11 and top covers in the fit mode, can there be the space unavoidably, and both-side opening end 112 a unavoidable magnetic conduction gap especially, therefore except being easy to generate noise and vibration, and can cause bigger magnetic loss, and the quality factor of inductance (Quality Factor is called for short the Q value) can descend.

[utility model content]

It is a kind of with the one-body molded coil outside that is coated on of permeability magnetic material that the purpose of this utility model is to provide, and makes the Inductive component that can not have the space between permeability magnetic material and coil fully.

Of the present utility model kind of Inductive component includes the cladding that a coil and is coated on this coil outside.It is characterized in that: this coil has one curved around the pitch of the laps portion that pre-fixing turn forms along a central axis by a lead, and two extensions that extended outward by these pitch of the laps portion two ends respectively, and this cladding is the pitch of the laps portion outside that is coated on this coil one-body moldedly.

[description of drawings]

Below by most preferred embodiment and accompanying drawing Inductive component of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the three-dimensional exploded view of Inductive component in the past;

Fig. 2 is this assembled sectional view of Inductive component in the past;

Fig. 3 is the stereogram of one first embodiment of the utility model Inductive component;

Fig. 4 one is used for making the simple three-dimensional exploded view of mfg. moulding die of this Inductive component among first figure;

Fig. 5 is a combined right sectional view of this mfg. moulding die among Fig. 4, illustrates that a coil is positioned in the accommodation space by mould holding;

Fig. 6 one is similar to the view of Fig. 5, illustrates that the cladding that this coil is injected in this accommodation space coats; And

Fig. 7 one is similar to the view of Fig. 4, and second embodiment of the utility model Inductive component is described.

[embodiment]

Before preferred embodiment is described, be noted that in the content of the following description book similarly assembly is to represent with identical numbering.

As shown in Figure 3, first embodiment of the utility model Inductive component 2 includes a coil 21, and a cladding 22 that is coated on these coil 21 outsides.It is one curved around the pitch of the laps portion 211 that pre-fixing turn forms along a central axis by radius ground such as rectangular flat leads that this coil 21 has, and two extensions 212 that extended outward by these pitch of the laps portion 211 two ends respectively.

The utility model first embodiment includes a counterdie 3 so as to the mfg. moulding die that produces this Inductive component 2 as shown in Figure 4, and one is used for correspondence and is pressed together on the patrix 4 of these counterdie 3 end faces.This counterdie 3 is horizontal lengthy motion picture shape plate body, following basal wall 31 with a horizontal expansion, and most adjacent ground connection are by an end face of this time basal wall 31 leg 32 under the rectangular shaped as frame of consubstantiality extension up, so as to defining most opening following die cavitys 33 up, graphic comparatively cheer and bright for making, only having two following die cavitys 33 with this counterdie 3 in the present embodiment is that example explains, and still designs not as limit.

Each all can supply to bridge an aforesaid coil 21 on the leg 32 down, and each down leg 32 have parallel before, rear wall section 321,322 and two be connected in before, rear wall section 321, side wall sections 323 between 322 liang of ends, aforesaid die cavity 33 down is to be defined jointly by this time leg 32 and 31 of following basal walls, before being somebody's turn to do, rear wall section 321,322 all have front and back extends ground by the following location notch 324 of one end face toward lower recess, 325, these two times location notchs 324,325 have the long section that cooperates with the extension 212 of aforementioned coil 21, make central axis that coil 21 can its pitch of the laps portion 211 erectly perpendicular to infrabasal plate 31, make its two extension 212 respectively level bridge at these two times location notchs 324, on 325, this two side wall sections 323 is contour with front wall segments 321, and the height of this rear wall section 322 is up projection than this front wall segments 321 in the design, make this two times location notchs 324,325 is a low height, this design is in order to be to be a low high-level extension state in response to coil 21 its two extension 212 when bridging, to guarantee the vertical stable state of coil 21 its central axis.

This patrix 4 be can with the aforementioned counterdie 3 corresponding lengthy motion picture shape plate bodys that cover, have the last basal wall 41 of a horizontal expansion, and most adjacent ground connection are by a bottom surface of this time basal wall 41 leg 42 on the rectangular shaped as frame of consubstantiality extension down.Should go up basal wall 41 has one and runs through the hand-hole 411 that Qi Ding, bottom surface are used for injecting cladding 22.Leg 42 has parallel front and back walls section 421,422 on each, and two side wall sections 423 that are connected between 421,422 liang of ends of front and back walls section, and define a downward opening upper mould cave 43 jointly by leg on this 42 and last basal wall 41, and the shape of last leg 42 is to become the complementary shape that can correspondingly cover with the following leg 31 of aforementioned counterdie 3, these side wall sections 423 that just should go up leg 42 are identical with front wall segments 421 projecting degrees, have only the projecting degree of this rear wall section 422 less.

Cooperate shown in Figure 5, when all having bridged coil 21 on these following legs 32 of aforementioned counterdie 3, can then patrix 4 correspondences be covered at counterdie 3 end faces, borrow leg 42 on these of patrix 4 this moment, close respectively compressing on these following legs 32 that are combined in counterdie 3, and with two extensions 212 of each coil 21 respectively clamping be positioned on institute's correspondence, following leg 42,32 front wall segments 421,321 and rear wall section 422,322, this moment and by last, counterdie 4 is on each, following leg 42,32, define one jointly by last, following die cavity 43,33 be communicated with form be installed in space 5, make the pitch of the laps portion 211 of coil 21 be placed in this vacantly and be installed in the space 5.

As shown in Figure 6, each coil 21 be held be positioned 4,3 of upper and lower moulds after, then will contain the made fluidised form coating fluid of ferroalloy powder, inject and be full of this by the hand-hole 411 of patrix 4 and be installed in the space 5, become the solid-state cladding 22 that is coated on these pitch of the laps portion 211 outsides to condense.Coat fluid herein and can add that to help the solvent of stream effect made, inject being installed in the space 5 of 4,3 of upper and lower moulds, make the pitch of the laps portion 211 of each coil 21 be condensed into solid-state cladding 22 afterwards and coat by these hand-holes 411 by the ferroalloy powder fluid.

Then, toast these coils that integrally combines 21 and cladding 22, make cladding 22 sclerosis typings, so just can be made into desired Inductive component 2.

In addition, needs for whole coil 21 location, can be when coil 21 be inserted counterdie 3, just default two blocks 6 (being found in Fig. 6) on the machine table, be barred from this outside, two times location notchs, 324,325 ends of counterdie 3, so that subsequent job avoids two extensions 212 of coil 21 influenced and the front and back displacement by mobile the pushing of cladding 22 during injecting cladding 22.

Again, what deserves to be mentioned is, two extensions, 212 ends of the Inductive component 2 that present embodiment is made, can carry out bending process in addition, paste to the end face of cladding 22 and up and in opposite directions bend, its bending state is with aforementioned shown in Figure 2 identical, certainly cooperate this demand that makes, can down outstanding position be set in the collocation of upper substrate 41 bottom surfaces of patrix 4 in addition,, not show with graphic in addition at this so that constitute corresponding groove at cladding 22 end faces.

By the manufacture process of present embodiment Inductive component 2 as can be known, really assembling operation is processed in the bonding that does not need during manufacturing to carry out as Inductive component carried out in the past, therefore can reduce manufacturing cost, and made Inductive component 2, because its cladding 22 is pitch of the laps portion 211 outsides that are coated on coil 21 one-body moldedly, can not there be the space in 22 of pitch of the laps portion 211 and claddings, therefore can avoid producing noise and vibration, reduce magnetic loss, and promote the Q value of inductance.And in manufacture process, this coil 21 also can be located with being stabilized, the distance of itself and mould inner wall is fully separated and fixes, and guarantees the gauge thickness of magnetic conductor (cladding 22).

As shown in Figure 7, the coil 21 of the utility model second embodiment Inductive component 2 is different with previous embodiment, this coil 21 is curved around forming by rectangular round wire lead, and its two extension 212 is contour horizontal-extending states, and approximately the position at the intermediate altitude place of pitch of the laps portion 211.For difference in response to coil 21 shapes, in the mfg. moulding die of present embodiment, the projection degree forward and backward, side wall sections 321,322,323 of the following leg 32 of this counterdie 3 is identical, and the following location notch the 324, the 325th of front and back walls section 321,322 is designed to the semi-circular cross-section with the half of form fit of extension 212, and two extensions 212 can correspondence be bridged on these two times location notchs 324,325.And the projection degree forward and backward, side wall sections 421,422,423 of leg 42 is also identical on each of this patrix 4, and front and back walls section 421,422 all have one be depressed in its bottom surface and correspond respectively to aforementioned two times location notchs 324,325 on location notch 424,425, and can will be these rounded extensions 212 of cross section, clamping is positioned between these upper and lower location notchs of upper and lower mould 4,3.

Take a broad view of above-mentioned, Inductive component 2 of the present utility model is in manufacture process, the made cladding 22 of this ferroalloy powder is one-body molded coil 21 outsides that are coated on, make 21 of made cladding that integrally combines 22 and coils, can there be the space, and can reduce manufacturing cost, and effectively promote the quality of made Inductive component, so very practical really and progressive.

Claims (5)

1, a kind of Inductive component, include the cladding that a coil and is coated on this coil outside, it is characterized in that: this coil has one curved around pitch of the laps portion that pre-fixing turn forms along a central axis by a lead, and two extensions that extend outward by these pitch of the laps portion two ends respectively, this cladding is the pitch of the laps portion outside that is coated on this coil one-body moldedly.

2, Inductive component as claimed in claim 1 is characterized in that: this two extension is one high and one lowly to be extended outward by these pitch of the laps portion two ends respectively.

3, Inductive component as claimed in claim 1 is characterized in that: this two extension is etc. that the highland is extended outward by these pitch of the laps portion two ends respectively.

4, as claim 1,2,3 described Inductive components, it is characterized in that: this coil is curved around forming by rectangular flat lead.

5, as claim 1,2,3 described Inductive components, it is characterized in that: this coil is curved around forming by rectangular wire lead.

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