CN207834085U - A kind of plug-in type inductor - Google Patents

Abstract

The utility model is related to technical field of electronic components, for solving the problems, such as that uniform densely packed coil loosens, disclose a kind of plug-in type inductor, include the coil of skeleton and winding thereon, it is provided with the shank being connect with coil spot welding on the skeleton end face, the skeleton includes roll bar, it is set to the upper cover body on roll bar top, and the lower cover for installing shank, described its circumferential direction of lower cover upper edge offers several extends to lower cover bottom end with the wire lead slot with the spot welding of shank end for coil, its key points of the technical solution are that with hold-in winding uniformly it is close around, tight advantage.

Description

A kind of plug-in type inductor

Technical field

The utility model is related to technical field of electronic components, more particularly to a kind of plug-in type inductor.

Background technology

Inductor is generally made of skeleton, winding, shielding case, encapsulating material, magnetic core or iron core etc., and winding refers to having rule Determine one group of coil of function, it is the element of inductor；Winding is divided into single layer and multilayer, Single-layer Windings or multilayer Winding be divided into for it is close around（The circle of conducting wire one suffers a circle when coiling）With two kinds of spaced winding.

Such as plug-in type I-shaped inductance just belongs to close around type, this inductance generally comprises I-shaped skeleton, magnetic core and coil, Need coil is uniformly close to be layer by layer wound on spool stand, relatively common problem is, when coil one end point is welded in winding stand one end When, other end winding needs to return to the same end spot welding after completing, and forms two inserted terminals, and the process of coiling is returned in coil In, coil is easy to slide with skeleton, on the one hand be easy to cause a welding end fracture；The sliding of still further aspect, coil is easy The winding section completed is wound before causing to loosen, and causes coil is uniformly close to be destroyed around state, and coil point welding end is disconnected It splits and is further exacerbated by the coil uniformly close destruction around state, and coil disengaging is uniformly close around state, being easy to cause resistance becomes larger, electricity Magnetic force reduces, and when energization, or even since vibration can lead to the friction aggravation of coil turn-to-turn, causes insulating layer to damage, and then generate circle Between short circuit burn coil.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of plug-in type inductor, have Hold-in winding is uniformly close around, tight advantage.

The above-mentioned technical purpose of the utility model technical scheme is that：

A kind of plug-in type inductor includes skeleton and winding coil thereon, is provided on the skeleton end face and coil The shank of spot welding connection, the skeleton include roll bar, are set to the upper cover body on roll bar top and for installing shank Lower cover, described its circumferential direction of lower cover upper edge offer it is several for coil extend to lower cover bottom end with shank end points The wire lead slot of weldering.

So set, one end by coil is connect with a wherein shank spot welding, the other end is in roll bar, shape It is spoted weld on an other shank followed by across wire lead slot around state at uniformly close, forms a circuit, coil passes through Wire lead slot is slidably connected compared to coil and lower cover outer wall, it is therefore prevented that the opposite sliding of coil and lower cover, and coil has Have certain rigidity, after wire lead slot inner bending so that wind that the coil of completion can stablize in wire lead slot, it is not easy to Slide, be otherwise easy to cause coil uniformly it is close around one section loosen so that coil uniformly the close destruction around state, and The loosening of coil causes to increase the pulling force of a welding end, and coil is caused to be easily broken off with point welding end, and the fracture of coil can aggravate Coil loosens situation, thus the setting of wire lead slot have the advantages that hold-in winding it is uniform it is close around, it is tight；

Meanwhile coil is located in wire lead slot, it is therefore prevented that coil leads to crack conditions positioned at lower cover outer wall due to abrasion Generation.

Further preferably：The lower cover in wire lead slot in being provided with for stopping that coil skids off the block of wire lead slot.

So set, since coil is during around wire lead slot, it may occur that bending, and the angle bent cannot mistake Greatly, it needs coil to be in the state tensed, not so after coil deformation recovery, leads to one section of coil sag of welding end, into And influence uniformly it is close around one section relax, coordinate the uniform close around state of coil, by the way that block is arranged, ensureing coil In the case of tension, additionally it is possible to prevent coil from being skidded off out of wire lead slot, thus as available from the above, the setting of block makes coil protect The state of tension is held, and wire lead slot will not be skidded off, two effects all play the destruction for preventing coil close around state.

Further preferably：The lower cover slide axially along roll bar be provided with for prevent coil loosen abutting bar, The locating part for limiting its sliding is provided on the abutting bar.

So set, since coil to point one section of welding end is even at tension, but this section with uniformly it is close around End will produce an angle so that with uniformly it is close around one section of adjacent with angle circle easily toward the sliding of angle direction, It is powered in coil, since vibration can cause coil to be more prone to loosen, and is easy to cause the friction aggravation of coil turn-to-turn, Insulating layer damage is caused, and then generates turn-to-turn short circuit and burns coil situation, abutting bar is provided with by the way that sliding is arranged, is pushing against bar After abutting so that close-packed section is constantly in the state pushed against with to the junction of one end for putting welding end, can prevent it is close around The relaxation of section, ensures the uniform close holding around state of close-packed section.

Further preferably：The locating part includes several limiting slots opened up along abutting bar glide direction and setting In push against bar on the matched limited block of limiting slot.

So set, pushing against bar by sliding, and coordinate the setting of upper limit position block and limiting slot so that pushing against bar will not Reverse slide occurs so that push against bar and be always maintained to the abutting state of coil.

Further preferably：The abutting bar is circumferentially provided with multiple along lower cover.

So set, by the way that multiple abutting bars are arranged, the abutting by different abutting bar different locations to coil, further So that coil be constantly in uniformly it is close around state.

Further preferably：The abutting boom end is provided with and the matched coordinating block of coil shape.

So set, by push against boom end be provided with the matched coordinating block of coil, can prevent from pushing against bar and line Circle slides so that abutting state can be constantly in by pushing against bar.

Further preferably：The sliding groove slided with roll bar is offered in the upper cover body, the upper cover body is in sliding groove Inside it is provided with the rubber ring pushed against with roll bar.

So set, since individual pen is wound coil in roll bar, and without when having wound roll bar, being powered due to coil Vibration, is easy to cause the loosening of coil, slidably by upper cover body, and increases between upper cover body and roll bar with rubber ring is closed Frictional force so that upper cover body sliding pushes against coil, and upper cover body is not easy reverse slide again so that coil be in it is uniform it is close around State, and upper cover body and roll bar is detachable so that and the dismounting of coil is more convenient, if upper cover body is skidded off, then lead-off line Circle is not loosened in coil, can be directly set in another roll bar, realizes recycling for coil, time saving It is laborsaving, improve working efficiency.

And the sliding of upper cover body, can adapt to the different number of turns coil it is close around and different-diameter size coil.

Further preferably：It is provided on the lower cover and is used to support the bearing that lower cover wears to prevent stop welding end.

So set, since the spot welding distal process of coil and shank goes out lower cover, when shank carries out grafting, hold At spot welding easy to wear, by the way that bearing is arranged, it can play the role of protecting at spot welding.

In conclusion the utility model having the beneficial effect that in contrast to the prior art：Coordinate upper stopper by wire lead slot, makes Coil can be tensed and be welded with shank, and coil is less likely to occur to slide, and causes the loosening of coil, and can prevent It is excessive to welding end pulling force, influence the connection of coil and shank；Coordinate the limit of upper limit part solid by several abutting bars Be set for using so that coil is in the close state around abutting, cooperation be upper cover body slidably so that coil in roll bar either Single-turn or multi-turn is wound, and can keep uniformly close around state.

Description of the drawings

Fig. 1 is the structural schematic diagram of embodiment middle skeleton；

Fig. 2 is the sectional view of embodiment Fig. 1；

Fig. 3 is the enlarged drawing of A in embodiment Fig. 2；

Fig. 4 is the enlarged drawing of B in embodiment Fig. 2；

Fig. 5 is the bottom view of embodiment Fig. 1.

Reference numeral：1, shank；2, skeleton；21, roll bar；22, upper cover body；221, groove；23, lower cover；231, draw Wire casing；3, block；4, bar is pushed against；5, limiting slot；6, limited block；7, coordinating block；8, sliding groove；9, rubber ring；10, bearing；11、 Sliding slot；12, plate is abutted；13, part is replied；14, magnetic core.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

A kind of plug-in type inductor, it is shown referring to Fig.1, including skeleton 2, magnetic core 14（See Fig. 2）And coil（Do not show in figure Go out）.

Wherein, skeleton 2 includes roll bar 21 and the upper cover body 22 and lower cover 23 for being respectively arranged at 21 both ends of roll bar, magnetic core 14 It is arranged in roll bar 21, for coil in roll bar 21, the bottom end of lower cover 23 is provided with two shanks 1, two shanks 1 It is symmetrical arranged, and 23 bottom end of lower cover is provided with and is used to support the bearing 10 that lower cover 23 wears to prevent stop welding end, bearing 10 be symmetrical arranged there are two, be located at the outside of two shanks 1.

It is worth noting that with reference to shown in Fig. 2, upper cover body 22 is slidably mounted in roll bar 21, and the bottom end of upper cover body 22 is opened Equipped with the matched sliding groove 8 of spiral, sliding groove 8 is rounded, and the diameter of sliding groove 8 is more than the diameter of roll bar 21, and on Lid 22 is in being provided with the rubber ring 9 pushed against with roll bar 21 in sliding groove 8（See Fig. 4）.

Referring to Fig.1 with shown in Fig. 5, its circumferential direction of 23 upper edge of lower cover offers several extends to 23 bottom of lower cover for coil End is with the wire lead slot 231 with 1 end spot welding of shank, and there are two the settings of wire lead slot 231, and two wire lead slots 231 are symmetrically opened in On the outer wall of lower cover 23, race diameter is more than the diameter of inner ring, and lower cover 23 is provided in wire lead slot 231 for hindering Gear coil skids off the block 3 of wire lead slot 231, and two pieces of blocks 3 in two wire lead slots 231 are in symmetrical state.

It is noted that with reference to shown in Fig. 2, sliding slot is offered on the vertical direction of 10 linkage section of lower cover 23 and bearing 11, lower cover 23 is provided with the abutting bar 4 for preventing coil from loosening in sliding in sliding slot 11, pushes against bar 4 and is placed in vertical, and And push against bar 4 and be on lower cover 23 and bearing 10, due to there are two the settings of bearing 10, thus pushes against bar 4 and is also equipped with two, And the top for pushing against bar 4 is provided with and the matched coordinating block of coil shape 7.Coordinating block 7 is set as flat in 21 side of roll bar Face is provided with arc side in other side.

The locating part being provided on bar 4 for limiting its sliding is pushed against, locating part includes several along abutting 4 glide direction of bar The limiting slot 5 opened up, push against bar 4 in 5 side of limiting slot be provided with 5 matched limited block 6 of limiting slot, push against bar 4 it is another Side is provided with abutting plate 12 in contact, and the other side for abutting plate 12 is equipped with several bullets being connected with lower cover 23 Spring, spring are located in sliding slot 11.

The course of work：

Coil end point is welded on a shank 1, passes through the block 3 in wire lead slot 231 and wire lead slot 231, then It is even it is close be wound in roll bar 21, down pass through another wire lead slot 231 and block 3, spoting weld an other shank 1.

When coil roll bar 21 belong to single layer uniformly it is close around when, by manually pushing upper cover body 22 so that upper cover body 22 with Coil abuts, and plays the role of limit, prevents the relaxation of coil.

When coil double layer uniformly it is close around when, pass through sliding push against bar 4 so that coordinating block 7 is abutted with coil, prevents coil Loosen, and push against bar 4 under the cooperation of limited block 6 and limiting slot 5 so that reverse slide will not be occurred by pushing against bar 4, and to The limited block 6 on abutting bar 4 having nothing to do under the cooperation of fishplate bar 12 and spring is limited in limiting slot 5.

The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention It encloses, the scope of protection of the utility model is determined by the attached claims.

Claims (8)

1. Include the coil of skeleton (2) and winding thereon 1. a kind of plug-in type inductor, be provided on skeleton (2) end face with The shank (1) of coil spot welding connection, it is characterized in that：The skeleton (2) includes roll bar (21), is set to roll bar (21) top Upper cover body (22) and lower cover (23) for installing shank (1), the lower cover (23) is if its circumferential direction of upper edge offers It does and extends to lower cover (23) bottom end for coil with the wire lead slot (231) with shank (1) end spot welding.
2. 2. a kind of plug-in type inductor according to claim 1, it is characterized in that：The lower cover (23) is in wire lead slot (231) it is provided in for stopping that coil skids off the block (3) of wire lead slot (231).
3. 3. a kind of plug-in type inductor according to claim 1, it is characterized in that：The lower cover (23) is along roll bar (21) axis Sliding is provided with the abutting bar (4) for preventing coil from loosening, described push against is provided on bar (4) for limiting its sliding Locating part.
4. 4. a kind of plug-in type inductor according to claim 3, it is characterized in that：The locating part includes several along abutting bar (4) limiting slot (5) and be set on abutting bar (4) and limiting slot (5) matched limited block (6) that glide direction opens up.
5. 5. a kind of plug-in type inductor according to claim 3, it is characterized in that：The abutting bar (4) is along lower cover (23) It is circumferentially provided with multiple.
6. 6. a kind of plug-in type inductor according to claim 3, it is characterized in that：Abutting bar (4) end set have with The matched coordinating block of coil shape (7).
7. 7. a kind of plug-in type inductor according to claim 1, it is characterized in that：It offers and rolls up in the upper cover body (22) The sliding groove (8) of bar (21) sliding, the upper cover body (22) are provided with the rubber ring abutted with roll bar (21) in the sliding groove (8) (9)。
8. 8. a kind of plug-in type inductor according to claim 1, it is characterized in that：It is provided with and is used on the lower cover (23) Support lower cover（23）To prevent the bearing (10) of stop welding end abrasion.