JP2001068357A - Reactor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reactor which can support two coil bobbins simply and correctly in a predetermined junction condition, additionally can be forcibly integrated and improved in an assembly work. SOLUTION: This device comprises a first lock mechanism 9 which junctions an ant 10 and an ant trench 11 by relatively clamping from the vertical direction Z-Z being provided at thickness parts 5 and 5 of flanges 4 and 4 at terminal side of the vertical direction Z-Z rectangularly crossing the axial direction of coil bobbins on a contact surface 8 of two coil bobbins 1 and 2, and a second lock mechanism 12 which combines a notch trench 13 formed at the flange 4 and 4 of the coil bobbins 1 and 2 with engaging chips 14 by snapping from the vertical direction Z-Z being provided at another terminal side on the contact surface 8 of the two coil bobbins 1 and 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reactor incorporated in the primary side of a power supply circuit of a so-called television or the like and used for suppressing a harmonic current.

[0002]

2. Description of the Related Art Some reactors use two coil bobbins.

As a conventional technique for positioning the two coil bobbins, there is a technique described in Japanese Utility Model Laid-Open No. 7-3113.

In the prior art described in Japanese Utility Model Laid-Open Publication No. Hei 7-3113, four sets of engaging protrusions and engaging recesses are provided on the mating surfaces of the flanges of the two coil bobbins, and the engaging protrusions and the engaging protrusions are provided. The two coil bobbins are positioned by fitting the recesses relatively.

[0005]

However, in the above-mentioned prior art, only the two coil bobbins are positioned through the engagement between the engaging projections and the engaging recesses, and consideration is given to joining the two coil bobbins. It has not been.

Therefore, there is a problem that workability when assembling other parts such as when assembling a core into two coil bobbins is poor.

The present invention has been proposed in view of the above, and an object of the present invention is to enable two coil bobbins to be easily and accurately held in a desired connection state, and to be firmly integrated. An object of the present invention is to provide a reactor capable of improving assembling workability.

Another object of the present invention is to provide a reactor selectively applicable to a pin terminal type or lead type reactor.

[0009]

In order to achieve the above object, in the present invention, a longitudinal direction orthogonal to the axial direction XX of the coil bobbin on the mating surface 8 of the two coil bobbins 1 and 2 each wound with the coil 17 is provided. A dovetail 10 and a dovetail groove 11 are relatively fitted from the longitudinal direction ZZ into the thick portions 5, 5 of the flanges 4, 4 on one end side of the ZZ, and joined.
A lock mechanism 9 is provided, and on the other end side of the mating surface 8 of the two coil bobbins 1 and 2 in the vertical direction Z-Z,
A second lock mechanism 12 is provided for snap-connecting the notch groove 13 formed in the flanges 4 and 4 of the coil bobbins 1 and 4 and the engagement piece 14 from the vertical direction Z-Z.

In order to achieve the above object, according to the present invention, pin terminals 16 are planted on the thick portions 5 of the flanges 4 of the two coil bobbins 1 and 2, respectively, to constitute a pin terminal type.

Further, in order to achieve the above object, according to the present invention, a lead wire lead-out groove 15 is formed in the flange 4 of the two coil bobbins 1 and 2, and a lead wire 18 of the coil 17 is formed from the lead wire lead-out groove 15. Drawer and lead type.

In order to achieve the above object, according to the present invention, the thick portions 5 of the flanges 4 of the two coil bobbins 1 and 2 are provided with pin terminal mounting holes 6 respectively.
Lead wire lead-out grooves 15 are formed in the flanges 4 of the two coil bobbins 1 and 2 so as to be selectively usable for a pin terminal type and a lead type.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of two coil bobbins to be coupled to each other, and is a perspective view of the two coil bobbins before coupling. FIGS. 2, 3, 4, 5 and 6 are a plan view, a front view, a bottom view, a left side view and a right side view showing one of the two coil bobbins. FIGS. 7 and 8 are a front view and a right side view when two coil bobbins are combined and used as a pin terminal type. And FIG.
FIG. 10 is a front view and a right side view when two coil bobbins are combined and used as a lead type.

In the embodiment shown in these figures, FIGS.
As shown in the figure, the two coil bobbins 1 and 2 respectively include a winding drum portion 3, flanges 4 provided at both ends of the coil bobbin in the axial direction XX of the winding drum portion 3, and a lower portion of the flange 4. And a thick portion 5 provided on one end side in a vertical direction ZZ orthogonal to the axial direction XX.
A pin terminal mounting hole 6 provided in the thick portion 5;
A coil terminal extraction groove 7 for a pin terminal type formed in the thick part 5 and a mating surface 8 of the two coil bobbins 1 and 2
A first lock mechanism 9 provided on a thick portion 5 of the flange 4 at one end side of the joining surface 8 in the vertical direction Z-Z, and a vertical lock on the joining surface 8 of the two coil bobbins 1 and 2. It has a second lock mechanism 12 provided on the other end side in the direction Z-Z, and a lead type lead wire drawing groove 15 formed on the flange 4.

The pin terminal mounting hole 6 is provided in each of the flanges 4.
The thick portion 5 is provided on a lower end surface which is one end surface in the vertical direction ZZ at a predetermined interval in a horizontal direction YY orthogonal to the axial direction XX, and It is provided at a predetermined depth from one end face in the vertical direction ZZ toward the inside.

The coil terminal lead-out groove 7 for the pin terminal type is formed between the pin terminal mounting holes 6.

The first lock mechanism 9 comprises a dovetail 10 and a dovetail groove 11 provided on the thick part 5 of the flange 4 so as to face the mating surface 8 of the two coil bobbins 1 and 2. When the dovetail groove 11 is provided in the thick portion 5 on the left side in the axial direction XX of the coil bobbin 1 of the two coil bobbins 1 and 2, for example, the right side in the axial direction XX of the coil bobbin 1 A dove 10 is provided on the thick part 5, and a dove 1 is formed on the left thick part 5 of the other coil bobbin 2 in the axial direction XX.
0, and a dovetail groove 11 is provided in the thick portion 5 on the right side of the coil bobbin 2 in the axial direction XX. A dovetail 10 provided on one coil bobbin and a dovetail groove 11 provided on another coil bobbin
The dovetail 10 and the dovetail 10 are relatively fitted from the vertical direction Z-Z at the mating surface 8 of the two coil bobbins 1 and 2 and can be connected.

The second lock mechanism 12 has a notched groove provided on the opposite side of the flange 4 in the vertical direction ZZ from the thick portion 5 so as to face the mating surface 8 of the two coil bobbins 1 and 2. 13 and an engagement piece 14. Thus, for example, the left flange 4 of the two coil bobbins 1 and 2 in the axial direction XX of the coil bobbin 1
When the engaging piece 14 is provided on the right side in the axial direction XX of the coil bobbin 1, a notch groove 13 is provided on the right flange 4;
The left flange 4 of the other coil bobbin 2 in the axial direction XX
Is provided with a notched groove 13 so that the coil bobbin 2 can be moved
A notch groove 13 and an engaging piece 14 are provided for one coil bobbin such that an engaging piece 14 is provided on the right flange 4 of X, and a notch groove 13 provided on one coil bobbin is provided. And the engaging piece 14 provided on the other one of the coil bobbins, and the notch groove 13 by the mating surface 8 of the two coil bobbins 1 and 2 in the vertical Z-direction.
It is configured so that it can be snap-fitted relatively from Z.

The reactor according to the present invention comprises the two coil bobbins 1 and 2 and the coil bobbins 1 and 2 respectively.
And a core 19 wound therearound.

The coil 17 is wound around the bobbin 3 of the coil bobbins 1 and 2, respectively. The outer periphery of the wound coil 17 is covered with an insulating material such as an insulating tape having a predetermined width.

After the coil 17 is wound around the winding drum section 3, the two coil bobbins 1 and 2 are provided with first and second lock mechanisms 9, 2 provided on the mating surface 8 of the two coil bobbins 1 and 2. 12 are connected. The coupling by the first and second lock mechanisms 9 and 12 is performed by the dovetail 10 and the dovetail groove 11 of the first lock mechanism 9 provided on one coil bobbin.
The dovetail groove 11 of the first lock mechanism 9 provided on another coil bobbin and the dovetail 10 can be fitted in the axial direction XX.
And the position in the horizontal direction YY, and slide the two coil bobbins 1 and 2 relatively in the vertical direction ZZ,
The dovetail groove 11 and the dovetail 10 of the first lock mechanism 9 provided on another coil bobbin are fitted into the dovetail 10 and the dovetail groove 11 of the first lock mechanism 9 provided on one coil bobbin. In the process of fitting the dovetail 10 and the dovetail groove 11 of the first lock mechanism 9 into the notch groove 13 and the engagement piece 14 of the second lock mechanism 12 provided on one coil bobbin, and to the other one coil bobbin. Engaging piece 14 of second lock mechanism 12 provided
And the notch groove 13 are engaged with each other, and when the notch groove 13 of the second lock mechanism 12 and the engaging piece 14 advance to a predetermined position, the engaging piece 14 is set in the notch groove 13 by its own elastic force. The notch groove 13 of the second lock mechanism 12 and the engagement piece 14 are snap-coupled.

Accordingly, in this embodiment, the dovetail 10 and the dovetail groove 11 of the first lock mechanism 9 are positioned so as to fit each other, and then slid in the vertical direction Z-Z to thereby provide the first lock mechanism 9. Can be connected to the dovetail groove 11 and the notch groove 13 of the second lock mechanism 12 and the engaging piece 14 at the same time, so that the two coil bobbins 1 and 2 can be easily connected. Can be done.

Further, the first and second lock mechanisms 9 and 12 can hold the positions of the two coil bobbins 1 and 2 in the axial direction XX. , 2 can be held in the horizontal direction YY, and the second lock mechanism 12 can position the two coil bobbins 1 and 2 in the vertical direction ZZ. Since the position can be maintained, the two coil bobbins 1 and 2 can be accurately maintained in the use state.

Further, the two coil bobbins 1 and 2 are firmly secured by the first lock mechanism 9 for connecting the dovetail groove 11 to the dovetail 10 and the second lock mechanism 12 for snap-connecting the engagement piece 14 to the notch groove 13. Since they can be connected, it is possible to improve the assembly workability.

The core 19 is a pair of two cores.
Each core 19 is formed in a U-shape.

Then, the leg of one core 19 is inserted into the inside of the winding drum 3 from the outside of the flange 4 on one end side in the axial direction XX of the combined coil bobbins 1 and 2,
The leg of the other one core 19 is inserted into the inside of the winding drum 3 from the outside of the flange 4 on the other end side in the axial direction XX of the combined coil bobbins 1 and 2, and the two cores 19 are inserted. It is fixed with adhesive.

By the way, an assembly in which the two coil bobbins 1 and 2 connected to each other as described above, the coil 17 wound around the winding drum 3 of each of the coil bobbins 1 and 2 and the two cores 19 are fixed. When used as a pin terminal type reactor 20, the configuration is as follows.

That is, as shown in FIGS. 7 and 8,
A pin terminal 16 is inserted and planted in a pin terminal mounting hole 6 provided in a thick portion 5 of each flange 4 of the two coil bobbins 1 and 2, and a winding start end and a winding end of each coil 17 are formed.
Pull out the pin terminal 16 side from the pin terminal type coil terminal extraction groove 7 formed in the thick portion 5 of the flange 4 of the coil bobbins 1 and 2, and separate the winding start end and the winding end of each of the coils 17 separately. It is wound around the pin terminal 16, soldered and fixed. Then, the pin terminals 16 are inserted into, for example, a printed circuit board (not shown) and electrically connected for use.

On the other hand, two coil bobbins 1 and 2 connected to each other as described above, a coil 17 wound around the winding drum 3 of each coil bobbin 1 and 2, and two cores 1
When using the assembly to which 9 is fixed as a lead type reactor 21, the assembly is performed as follows.

That is, as shown in FIG. 9 and FIG.
Attach to 2.

The mounting bracket 22 includes a floor 23 and a floor 2.
3, mounting portions 24, 24 formed on both sides in the width direction;
Positioning portions 25, 25 formed on one end side in the length direction of the mounting portions 24, 24 and fixing pieces 26, 26 formed on the other end side in the length direction of the mounting portions 24, 24. Have.

Then, the positions of the thick portions 5, 5 of the flanges 4 of the coil bobbins 1, 2 are aligned with the mounting portions 24, 24 formed on the mounting bracket 22, and the mounting portions 24, 24 from the fixing pieces 26, 26 side. The thick portions 5, 5 of the flanges 4, 4 are inserted into 24, and pushed until the thick portions 5, 5 abut against the positioning portions 25, 25, and the assembly is positioned on the mounting bracket 22.

After positioning the assembly with respect to the mounting bracket 22, the fixing pieces 26, 26 are bent or twisted inwardly to fix the assembly to the mounting bracket 22.

The coils 17 of the coil bobbins 1 and 2
A lead wire 18 is connected and pulled out, and an insulating tape 27 is wound around the outer periphery of the coil. Further, a mounting bracket 22 is attached to use as a lead type reactor 21.

As described above, according to this embodiment, the pin terminals are not inserted into the pin terminal mounting holes 6 provided in the thick portions 5 of the flanges 4 of the coil bobbins 1 and 2, and the mounting bracket 2 is not used.
The assembly of the coil bobbins 1 and 2, the coil 17 and the core 19 is attached to 2, and the lead wire 18 is pulled out from the coil 17, so that the lead type reactor 21 can be used.

[0037]

As described above, according to the present invention, the flanges 4, 4 on one end side in the vertical direction ZZ orthogonal to the axial direction XX of the coil bobbin on the mating surface 8 of the two coil bobbins 1, 2 are provided. Ant 10 and dovetail 11
And a first lock mechanism 9 for relatively fitting and coupling the two coil bobbins 1 from the vertical direction Z-Z.
At the other end of the mating surface 8 in the vertical direction Z-Z, the notch grooves 13 and the engaging pieces 14 formed in the flanges 4 and 4 of the coil bobbins 1 and 2 are arranged from the vertical direction Z-Z. Since the second locking mechanism 12 for snap connection is provided, the first locking mechanism 9 can be aligned with the dovetail 10 and the dovetail groove 11 and then slid in the vertical direction Z-Z.
The dovetail 10 and the dovetail groove 11 of the lock mechanism 9 and the notch groove 13 and the engagement piece 14 of the second lock mechanism 12 are fitted together,
There is an effect that the two coil bobbins 1 and 2 can be easily connected, and by the connection of the first and second lock mechanisms 9 and 12,
The two coil bobbins 1 and 2 can accurately maintain the positioning state, and furthermore, the first lock mechanism 9 by coupling the dovetail 10 and the dovetail groove 11, and the second lock mechanism by snap coupling of the notch groove 13 and the engagement piece 14. 12, the two coil bobbins 1 and 2 are joined together, so that the two coil bobbins 1 and 2 can be strongly connected structurally, and the assembling workability of other members with respect to the two coil bobbins 1 and 2 assembled is improved. There is an effect to get.

In the present invention, the pin terminals 1 are respectively provided on the thick portions 5 of the flanges 4 of the two coil bobbins 1 and 2.
6 can be implanted and used as a pin terminal type reactor.

Further, in the present invention, a lead wire lead-out groove 15 is formed in the flange 4 of the two coil bobbins 1 and 2, and the lead wire 18 of the coil 17 is drawn out from the lead wire lead-out groove 15 to form a lead type reactor. There is an effect that it can be used.

In the present invention, a pin terminal mounting hole 6 is provided in each of the thick portions 5 of the flanges 4 of the two coil bobbins 1 and 2, and lead wires are drawn out of the flanges 4 of the two coil bobbins 1 and 2. Forming a groove 15,
Since it is configured to be selectively usable for the pin terminal type and the lead type, there is an effect that it can be selectively used for the pin terminal type reactor and the lead type reactor.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of two coil bobbins to be coupled to each other, and before the coupling.

FIG. 2 is a plan view showing one of two coil bobbins to be coupled.

FIG. 3 is a front view of the coil bobbin shown in FIG. 2;

FIG. 4 is a bottom view of the coil bobbin shown in FIG. 2;

FIG. 5 is a left side view of the coil bobbin shown in FIG. 2;

FIG. 6 is a right side view of the coil bobbin shown in FIG. 2;

FIG. 7 is a front view in which two coil bobbins are combined and used as a pin terminal type reactor.

FIG. 8 is a right side view of the reactor of FIG.

FIG. 9 is a front view in which two coil bobbins are combined and used as a lead type reactor.

FIG. 10 is a right side view of the reactor shown in FIG.

[Explanation of symbols]

 1, 2 coil bobbin 4 coil bobbin flange 5 thick portion of coil bobbin flange 6 bin terminal mounting hole 8 coil bobbin mating surface 9 first locking mechanism 10 first locking mechanism dovetail 11 first locking mechanism dovetail groove 12 second Lock mechanism 13 Notch groove of second lock mechanism 14 Engagement piece of second lock mechanism 15 Lead wire drawing groove in lead type 16 Pin terminal 17 Coil 18 Lead wire 19 Core 20 Pin terminal type reactor 21 Lead type reactor 22 Reactor Mounting bracket

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Osamu Watanabe 5-5-30 Chiyoda, Sakado-shi, Saitama F-term (reference) in Tamura Seisakusho Saitama Plant 5E043 AA02 AB01 EA05 EA06 EB03 5E044 BA02 BB02 BC03 5E059 LL17

Claims (4)

[Claims] 1. Two coil bobbins (1) and (2) each wound with a coil (17) are arranged in a horizontal direction YY orthogonal to an axial direction XX of the coil bobbin, and two coil bobbins (1) 1) and (2), in a reactor integrated with two pairs of cores (19) from both sides in the axial direction XX, and the integrated surface (8) of the two coil bobbins (1) and (2). Vertical direction Z- perpendicular to the axial direction XX at
The dovetail (10) and the dovetail groove (11) are relatively formed in the thick portions (5) and (5) of the flanges (4) and (4) on one end side of the Z from the vertical direction ZZ. A first lock mechanism (9) to be fitted and coupled is provided, and a coil bobbin (1) is provided on the other end side in the vertical direction Z-Z on a mating surface (8) of the two coil bobbins (1) and (2). ), (2) a second locking mechanism (12) for snap-fitting the notch grooves (13) formed in the flanges (4), (4) and the engagement pieces (14) from the vertical direction Z-Z.
A reactor provided with: 2. The two coil bobbins (1), (2)
The reactor according to claim 1, characterized in that pin terminals (16) are planted in the thick portions (5) of the flanges (4), respectively, and used as a pin terminal type. 3. The two coil bobbins (1), (2)
A lead wire lead-out groove (15) is formed in the flange (4), and the lead wire (18) of the coil (17) is pulled out from the lead wire lead-out groove (15) and used as a lead type. Item 10. A reactor according to item 1. 4. The two coil bobbins (1), (2)
In the thick portion (5) of the flange (4), a pin terminal mounting hole (6) is provided, respectively, and the flange (4) of the two coil bobbins (1) and (2) is provided with a lead wire drawing groove ( 2. The reactor according to claim 1, wherein said reactor is formed so as to be selectively used for a pin terminal type and a lead type.