JPH0617210U - Coil used for terminal block and coil with terminal block - Google Patents

Abstract

(57) [Summary] [Object] To provide a coil to be housed and used in a terminal block for preventing floating of lead wires, and a coil with a terminal block formed by being mounted on the terminal block. A coil is constructed by taking out a starting end portion and a terminating end portion of a winding wound around a hollow core that defines a hollow portion inside thereof as a pair of lead wires in a drawing direction from the hollow portion. Next, the pair of lead wires are drawn so as to partially contact the inner peripheral surface of the hollow portion and to cross the hollow portion in the pulling direction. The coil with a terminal block is composed of the coil and a terminal block having a groove for accommodating the coil and fixing the pair of lead wires in the drawing direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides a coil having a hollow core having a winding wire, the starting end and the terminating end of the winding wire being drawn out as lead wires, housed in a terminal block for use, and a coil with a terminal block formed by being mounted on the terminal block. It is about.

[0002]

[Prior art]

 As shown in FIG. 1, the coil 1 includes a ring-shaped core 7 having a hollow portion inside, and a copper winding 5 wound around the core 7, and the starting end and the terminating end of the copper winding 5 are provided. Are taken out in the pull-out direction (downward in the figure) respectively, and the lead wires 3 and 4 are provided in contact with both side surfaces of the core 7 in the axial direction (front-back direction in the figure), respectively, and A part of 3 and 4 extends in the axial direction so as to contact the inner peripheral surface of the core 7. Further, the lead wires 3 and 4 are taken out in the pulling-out direction so as not to cross the hollow portion of the core 7. As a result, some of the lead wires 3 and 4 are in contact with the inner peripheral surface of the core (the lower inner peripheral surface in the figure) on the side close to the tips of the lead wires 3 and 4.

As shown in FIG. 2, the coil 1 having such a structure is mounted on a rectangular terminal block 2 to form a coil 8 with a terminal block.

In this case, the lead wires 3 and 4 are attached to the terminal block 2 so as to project from the terminal block 2, and the projecting portions of the lead wires 3 and 4 are attached to a substrate (not shown) or the like. The coil with terminal block 8 is fixed to a substrate or the like.

[0005]

[Problems to be solved by the device]

 When mounting the tip of the lead wire on the substrate, there is a problem that the lead wire floats upward because a drag force is applied to the upper side of the lead wire in the drawing direction. In order to solve this problem, the lead wire must be fixed on the inner peripheral surface of the core hollow portion. Therefore, conventionally, it was necessary to fix the lead wires 3 and 4 to the inner peripheral surface of the core 7 using the adhesive 6 to prevent the lead wires 3 and 4 from floating.

However, when the adhesive is used in this way, there is a problem in that costs such as material cost for bonding and working cost are involved.

[0007] Therefore, an object of the present invention is to provide a coil that is housed in a terminal block and used to solve such problems, and a coil with a terminal block that is formed by being mounted on the terminal block.

[0008]

[Means for Solving the Problems]

 According to the present invention, in a coil constituted by taking out a starting end portion and a terminal end portion of a winding wound around a hollow core defining an inner hollow portion as a pair of lead wires in the pulling direction from the hollow portion, A coil is obtained in which a pair of lead wires are partially contacted with the inner peripheral surface of the hollow portion and are drawn out so as to cross the hollow portion in the drawing direction.

Further, there is obtained a coil with a terminal block including the coil and a terminal block that houses the coil and has a groove for fixing the pair of lead wires in the pulling direction.

[0010]

【Example】

 A coil 1 and a coil with terminal block 9 according to an embodiment of the present invention will be described with reference to FIGS. 3 and 4.

In FIG. 3, the coil 1 according to the embodiment of the present invention is formed by applying a copper winding 5 to a ring-shaped core 7 having a hollow portion, as in the case of FIG. Similarly, the lead wires 3 and 4 are also formed by taking out the starting end portion and the terminating end portion of the copper winding 5 in the pull-out direction (downward in the figure).

The lead wires 3 and 4 are provided in contact with both axial side surfaces of the core 7 (front-back direction in the drawing), and a part of the lead wires 3 and 4 is provided on the inner peripheral surface of the core 7. To extend in the axial direction. Further, in the coil 1 shown in FIG. 3, the inner peripheral surface of the core 7 and the lead wires 3 and 4 are in contact with each other at a position above the hollow portion of the core 7, and the lead wire 3 is located from this contact position. And 4 are drawn out in the lower part of the figure. Specifically, the lead wires 3 and 4 extend across the hollow portion of the core 7, pass through the side portions of the core 7, and extend to the outside of the core 7. Therefore, it is understood that the inner peripheral surface of the core 7 supports the upper ends of the lead wires 3 and 4.

The coil 1 shown in FIG. 3 is accommodated by being inserted into a box-shaped terminal block 11 in the direction of the arrow in FIG. 4 to form a coil 9 with a terminal block as shown in FIG. A pair of grooves 10 for fixing the lead wires 3 and 4 is provided on the side surface of the terminal block 11 in FIG. 4 in the lead wire drawing direction.

The groove 12 has a groove width that allows the lead wires 3 and 4 to pass therethrough, and a groove of a predetermined length is provided in the downward direction, leaving a part of the terminal block 11, and the groove of the lead wires 3 and 4 is provided. The protruding portion is fixed to a substrate or the like (not shown).

In addition, when the coil 1 is attached to the terminal block 11 and the coil 9 with the terminal block is attached to a substrate or the like (not shown), the lead wires 3 and 4 are arranged in a direction opposite to the lead-out direction. Power is added. However, in the structure shown in FIGS. 3 and 4, the lead wires 3 and 4 come into contact with the inner peripheral surface of the core 7 above the hollow portion of the coil 1, that is, at the upper end portion in the drawing direction, and Since it has a structure capable of withstanding the force in the direction, it is possible to prevent lifting.

The shape of the core is not limited to the cylindrical core, and the same effect can be obtained with a rectangular cylindrical core.

[0017]

[Effect of device]

 According to the present invention, when the coil is inserted into the substrate, the lead wire is fixed at a part of the inner peripheral surface of the intermediate portion of the coil, so that the lead wire is prevented from floating without using an adhesive. You can

[Brief description of drawings]

FIG. 1 is a perspective view of a single coil used in a conventional terminal block coil.

FIG. 2 is a perspective view of a conventional coil with a terminal block.

FIG. 3 is a perspective view of a single coil used in the coil with terminal block of the present invention.

FIG. 4 is a perspective view of a coil with a terminal block according to the present invention.

[Explanation of symbols]

 1 coil 2,11 terminal block 3,4 lead wire 5 copper winding 6 adhesive 7 core 8,9 coil with terminal block 10 groove

Claims (2)

[Scope of utility model registration request] 1. A coil constituted by taking out a starting end portion and a terminating end portion of a winding wound around a hollow core defining an inner hollow portion as a pair of lead wires in a pull-out direction from the hollow portion. A coil which is drawn out so that the lead wire partially contacts the inner peripheral surface of the hollow portion and crosses the hollow portion in the pulling direction. 2. A coil with a terminal block, comprising: the coil according to claim 1; and a terminal block that houses the coil and has a groove for fixing the pair of lead wires in a drawing direction.