JPH0638217U - Terminal structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Prevents conduction failure and insulation failure, prevents heat generation at the terminal, prevents the tip of the flat coil from approaching the mounting terminal of the base, and reduces the thickness of the safe transformer choke coil. Providing shape-based terminals. A terminal structure of a thin base b of a transchoke coil, wherein a plurality of terminals B are provided at both ends of the thin base b.
1, B2, B3, B4 are provided to form the terminal tip of the thin base into an inverted V-shaped arrowhead T, and a V-shaped groove S is provided at the center of the inverted V-shaped arrowhead T having a hole protrusion G. When the flat coil X, Y, Z, W is mounted, the spring acting on the V-shaped groove S is used to securely fix the coil, and the inverted V-shaped arrow bar T
Each of the protrusions F1, F2, F3, and F4 that are stepped in parallel with the hole protrusion G formed in
This is a thin base terminal structure of a transchoke coil in which a flat coil is mounted between the projections F1, F2, F3 and F4 in a reliable manner with good adhesion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transchoke coil, a thin base terminal structure of the transchoke coil, and an insulation distance.

[0002]

[Prior art]

 As shown in FIG. 4, the conventional terminals A11, A12, A13, A14 form a long plate shape, and a protrusion H is provided at the base of the conventional terminal, and the flat coil C shown in FIG. , D, and E are mounted and fixed with solder, terminal A12 is fixed with flat coil C and D with one terminal, and terminal A13 is fixed with flat coil D and E. , And one of the terminals of E is fixed to A14. As shown in FIGS. 2 and 3, the core a and the flat-plate coils C, D, and E are set on the thin base b to form the transformer choke coil. Complete. Conventionally, this type of thin base terminal structure has a terminal insertion hole d provided at the tip end of the flat plate-shaped coils C, D, and E, and the terminal tip end portion is inserted into the insertion hole d and fixed by soldering. Therefore, the space between the projection H and the attached flat coil caused by the conventional height of the projection H being constant, that is, in the case of the terminal A11, the projection and the flat coil are in contact with each other, so the space is However, a gap of K1 occurs between the flat coil and the base. In addition, a gap of K2 occurs between the flat coil and the base at the terminal A12, a gap of K3 occurs between the flat coil and the base at the terminal A13, and a gap of K2 occurs between the flat coil and the base at the terminal A14. A gap of K4 will be generated in the space, and heat will be generated due to the length of this space and the rattling of the flat coil, and the tip of the flat coil will generate heat and heat will be generated. Defects and insulation defects will occur. Further, the tip of the flat coil comes close to the base and the mounting terminal due to poor adhesion or the like, resulting in poor insulation, resulting in a safety defect.

[0003]

[Problems to be solved by the device]

 In order to solve these problems, the present invention provides a thin base of a transchoke coil made of an insulator, in which a plurality of terminals are provided at both ends of the thin base. The structure is an inverted V-shaped arrowhead T, a V-shaped groove is provided at the center of the terminal tip of the inverted V-shaped arrowhead, and a hole projection is provided on the inverted V-shaped arrowhead to form an inverted V-shaped arrowhead. It is a base of a transchoke coil that has protrusions that have a step height that increases sequentially in parallel with the hole protrusions.By fixing the position when the tip of the flat coil is inserted and soldering, By solving the problem of conduction failure and insulation failure due to remelting of solder when mounting the product, and by providing a protrusion at the base of the terminal part, the tip of the flat coil approaches the base and mounting terminal part due to poor adhesion, etc. This To resolve, and an object thereof is to provide a thin base over scan the terminal structure of the transformer choke coil with an emphasis on safety.

[0004]

[Means for Solving the Problems]

 That is, according to the present invention, in a thin base b of a transformer choke coil made of an insulator, a plurality of terminals B1, B2, B3, and B4 are provided at both ends of the thin base b, and the ends of the terminals have an inverted V shape. A V-shaped groove S is formed in the center of an inverted V-shaped arrow bar T having a hole protrusion G, and a stepped portion is formed in parallel with the hole protrusion G formed in the inverted V-shaped arrow bar T in order. The thin-type terminal structure of the transchoke coil is characterized by having the respective projections F1, F2, F3, and F4.

[0005]

[Action]

 In the present invention, the terminal portion provided on the thin base of the transchoke coil is formed into an inverted V-shaped arrowhead, and the tip of the flat coil is inserted into the inverted V-shaped arrowhead, and the inverted V-shaped arrowhead is inserted. There is a V-shaped groove formed on the base plate, and a hole projection that passes through the insertion hole of the flat coil is provided on the inverted V-shaped arrowhead. The tip of the flat coil is fixed and soldered immediately below the hole projection. To do. The flat coil has a projection with a step that increases in order in parallel to the projection of the inverted V-shaped arrowhead, and the flat coil is installed directly below the projection of the hole and in the space of the projection without gaps. Therefore, the flat coil does not move, and the height of the stepped protrusion that increases in parallel with the hole protrusion can be widened to prevent heat generation. You can solve the problem. Furthermore, by providing a protrusion at the base of the terminal part, it is possible to keep the distance from the flat coil tip to the base and the mounting terminal part so that the flat coil tip will not approach the base and the mounting terminal part. It is possible to provide a trans-choke coil that is safe and secure.

[0006]

【Example】

 FIG. 2 shows a thin base b 1 having a mounting terminal c 1 to which the terminal of the present invention is to be provided. The thin base b is assembled with a flat coil and a core to form a transformer choke coil. FIG. 3 is an assembled perspective view of a thin base b having mounting terminals c on which terminals of the present invention are to be provided. That is, two E-shaped cores a are abutted on the thin base b having the mounting terminals c, from which the terminals of the present invention are to be provided, and the plate coils C, D and E are placed between the cores. A trans choke coil is completed by setting and assembling. The flat coil C, D, E has an insertion hole d at its tip, and the insertion hole is formed in the inverted V-shaped arrowhead T of the present invention. The terminals B1, B2, B3, B4 (Fig. 1)). At the time of insertion, the hole protrusion G is provided on the inverted V-shaped arrow. At this time, a force acts on the V-shaped groove S (see FIG. 1) of the inverted V-shaped arrowhead to function as a spring, and the inserted flat coil is securely pressed. In this way, each flat coil X, Y, Z, W (see FIG. 1 (c)) is pressed and fixed by the hole projection and the projections F1, F2, F3, F4 having different steps according to the present invention. Further, the core a is inserted into the base from the upper surface and the lower surface where the flat-plate coil is incorporated, and the core a is fixed by a tape or a holder to complete a transformer choke coil.

FIG. 1 is an explanatory view illustrating a terminal structure of a base of a transchoke coil of the present invention. FIG. 1A is a front view of a thin base terminal structure of a transchoke coil of the present invention. The terminal structure of the present invention is an inverted V-shaped arrowhead T, and a groove S reaching the projections F1, F2, F3 and F4 of the present invention is provided at the center of the inverted V-shaped arrowhead T. The insertion holes d of the flat coils C, D, and E are pressed in the direction of arrow A onto the inverted V-shaped arrowhead T, and the insertion holes d go downward. The insertion holes d of the flat-plate coils C, D, and E are smaller than the hole protrusion G and the constriction U of the inverted V-shaped arrowhead, and when the insertion holes d of the flat-plate coil are pushed in, the spring of the V-shaped groove S is inserted. By the action, the inverted V-shaped arrowhead T contracts in the direction of arrow B, passes through the hole protrusion G, and further enters the inverted V-shaped arrowhead neck U, but the flat coil becomes a spring by the expansion and contraction of the groove S. Since the insertion hole of the flat coil is smaller in size than the hole protrusion G and the inverted V-shaped constriction U of the arrowhead, the spring of the V-shaped groove S is pressed firmly.

FIG. 1 (b) shows the terminals B1, B2, B3, B4 of the present invention which are inverted V-shaped arrowheads T. The terminals B1, B2, B3, B4 have higher steps in the order of different steps. The present invention has the projections F1, F2, F3, and F4. The protrusions F1, F2, F3, and F4 have a predetermined width that is wider than the inverted V-shaped arrowhead constriction U. The flat coil is mounted without a gap between the hole projection and the projections F1, F2, F3, F4 of the present invention so as not to move.

FIG. 1 (c) shows that the terminals B1, B2, B3, B4 of the present invention are equipped with the flat-plate coils X, Y, Z, W. The flat coil X of the terminal B1 of the present invention is equipped with one of the flat plate coils C, D and E. The flat coil Y of the terminal B2 is fitted with one of the flat coils C and D, and the flat coil Z of the terminal B3 is fitted with one of the flat coils D and E. One of the terminals of the flat coil E is attached to the flat coil W of the terminal B4. In that case, as in the conventional terminals A11, A12, A13, and A14 of FIG. 4, the width of the conventional terminal wedges K1, K2, K3, and K4 is flat from the insertion holes of the flat coil X, Y, Z, and W. Since it is smaller than the insertion hole of the coil, there is rattling, there is no close contact, and there is a gap between the flat coil and the protrusion H, which makes it easy to generate heat and generates heat. In order to prevent this, the adhesion between the flat-plate coils X, Y, Z, W and the terminals of the present invention is improved, and the projections F1, F2, F3, F4 having different steps are provided as in the present invention. , To prevent heat generation. As described above, the terminal structure of the thin base of the trans fork coil in which the tip of the flat coil is fixed by soldering is completed.

[0010]

According to the method of the present invention, by utilizing the elasticity of the V-shaped terminal portion, the tip end of the flat coil is pushed in, and further pushed over the hole protrusions provided in parallel. , The position is fixed, the flat coil does not displace due to vibration and impact during transportation during manufacturing, and does not fall off from the terminal part. Furthermore, the tip of the flat coil due to remelting by soldering during product mounting. The spring property solves the problem of conduction failure such as dropping from the terminal. In addition, it is possible to manufacture a trans-choke coil with the advantages that it is not fixed downward by the protrusion provided at the base of the terminal part, the distance from the base and mounting terminals is secured, and safety is secured. Becomes

[Brief description of drawings]

FIG. 1 is a front view of a terminal structure of a base of the present invention. FIG. 1A is an enlarged front view of the base terminal structure of the present invention. FIG. 1B is a front view showing the terminals of the thin base of the present invention. FIG. 1C is a front view in which a flat coil is mounted on the terminal of the thin base of the present invention.

FIG. 2 is a perspective view of a thin base on which the terminal of the present invention is to be provided.

FIG. 3 is a product assembly perspective view of a thin base on which the terminal of the present invention is to be provided.

FIG. 4 is a front view in which a flat coil is inserted into a conventional terminal structure.

[Explanation of symbols]

 A Arrows A11, A12, A13, A14 Conventional terminals a Core B Arrows B1, B2, B3, B4 Terminals of this invention b Thin bases C, D, E, X, Y, Z, W Flat coil c Mounting terminals d Insertion holes F1, F2, F3, F4 Projection G Hole projection H Conventional projection K1, K2, K3, K4 Conventional terminal neck T Reverse V-shaped arrowhead U Reverse V-shaped arrowhead constriction S V V-shaped groove

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[Procedure amendment]

[Submission date] October 26, 1993

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 1]

Claims (1)

[Scope of utility model registration request] 1. A thin base b of a transformer choke coil made of an insulator, wherein a plurality of terminals B1, B2, B3, B4 are provided at both ends of the thin base b, and the tip of the terminal is provided with an inverted V-shape.
A V-shaped groove S is formed in the center of an inverted V-shaped arrow bar T having a hole protrusion G, and a stepped portion is formed in parallel with the hole protrusion G formed in the inverted V-shaped arrow bar T in order. A thin base terminal structure for a transformer choke coil, characterized in that it has respective projections F1, F2, F3, F4 applied.