JPH0536809U - Bobbin with pin terminal - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a bobbin with a pin terminal that does not require a twisting machine without breaking a wire that bends the wire several times and is easy to twist without twisting. [Structure] In a bobbin with a pin terminal, a groove 12 is provided in a collar portion 2 having the pin terminal 3, and a V is provided at a base portion of the pin terminal 3.
Cut V-shaped projection 6 or multiple cylindrical projections and collar 2
Is a bobbin with pin terminals having wire positioning protrusions 5 on the outer surfaces of both ends of the.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a reel used for a transformer or the like. In particular, it is used for current sensors and transformers such as high-voltage transformers in which the wire is a fine wire of 0.1φ or less and requires a winding number of several thousand turns.

[0002]

[Prior art]

 In the conventional technology, taking a current sensor transformer as an example, when the wire is wound on the pin terminal 3 when the wire is wound several thousand times with a thin wire, the wire is wound from the winding frame 4 as shown in FIG. A method in which the strength of the wire is increased as the stranded wire 9 by twisting the folded wire 8 that has been folded back several times to form a plurality of wires and twisted to the pin terminal 3 has been used.

[0003]

[Problems to be solved by the device]

 With the conventional technique, the work of bending the wire several times and twisting it is very difficult and time consuming because it is a thin wire that can be performed manually. On the other hand, although there is a dedicated twisting machine, it is expensive and requires space for it, which makes the coil manufacturing efficiency very poor.

Therefore, by providing a groove in the flange of the pin terminal portion of the bobbin with the pin terminal, pulling out the wire from the groove, and by moving the wire between the positioning protrusion of the wire provided outside the flange and the pin terminal multiple times. In addition, a V-shaped protrusion or a cylindrical protrusion is provided so that multiple wires can be concentrated at the base of the pin terminal, eliminating the work of twisting the wire several times and twisting the coil. It is an object of the present invention to provide a bobbin with a pin terminal that improves the efficiency of the wire and has no wire breakage.

[0005]

[Means for Solving the Problems]

 The present invention has an insulating rectangular tube and a cylindrical winding core, and flanges protruding outward at both ends of the winding core, and an outer surface of one of the flanges has a plurality of pins along a predetermined opposing side. In a bobbin with a pin terminal provided with a terminal, a groove is provided on the flange of the pin terminal, and a V-cut projection or a plurality of cylindrical projections is formed at the root of the pin terminal and the outer surface of both ends of the flange. A bobbin with a pin terminal having a protrusion for positioning a wire.

[0006]

[Action]

 As a processing method that does not use a dedicated machine for twisting multiple wires and can secure the wire strength even after twisting, a groove is formed in the collar of the bobbin pin terminal and the wire is pulled out from the groove and the collar is pulled out. The wire positioning protrusions provided on the outside of the pin and the pin terminals are made to reciprocate multiple times, and V-shaped protrusions and cylindrical protrusions are provided so that multiple wires can be concentrated at the pin terminal roots. , Make sure there are no wire breaks.

[0007]

【Example】

 An embodiment of the perspective view of the present invention is shown in FIG. 1, and enlarged perspective views of the details of the present invention are shown in FIGS. As shown in FIG. 1, the EE type core 1 is set on the bobbin 4 having the collars 2 (bobbins) at both ends, and the bobbin collar with the core 1 mounted is provided with the groove 12 for taking out the wire, and the wire is pinned. In order to reciprocate back and forth to the terminal 3, the wire gathers the bundle of reciprocating wires in the protrusion of the pin terminal as centrally as possible to improve the strength of the wire at the root of the pin terminal after half-bonding. A V-shaped protrusion is provided on the. FIG. 2 is a perspective view showing the vicinity of the pin terminal in detail. As shown in Fig. 2, the bobbin collar 2 has a pin terminal 3 and is provided with a groove 12 through which the wire is pulled out. A cylindrical protrusion 7 and a wire positioning protrusion 5 are provided so as to be provided. Similar to FIG. 2, FIG. 3 has a V-shaped projection 6 instead of the cylindrical projection, and a wire positioning projection 5 is provided so as to be repeatedly gripped by the pin terminal. Referring to FIG. 6 showing the conventional technique, the folded wire 8 is twisted and the twisted wire 9 is twisted to the pin terminal 3. On the other hand, in the embodiment of the present invention, as shown in FIG. 5, the wire 11 drawn out from the groove 12 of the bobbin for winding the wire around the collar 2 of the pin terminal 3 is inserted into the pin terminal 3 through the wire positioning protrusion 5. The wire is entangled and again passed through the cylindrical projection 7 to return to the wire positioning projection 5. That is, FIG. 5 is a partially enlarged perspective view of the collar portion having the pin terminal of the bobbin with the pin terminal, in which the wire 11 is taken from the groove 12 of the collar 2 from the reel and the wire passing through the wire positioning protrusion 5 is the pin terminal. It is entangled in 3. The bundle of reciprocating wires 10 is formed by passing through the cylindrical projections 7 and returning them to the wire positioning projections 5. FIG. 4 is a side view of FIG. 1, and FIG. 4 shows a V-shaped projection 6 instead of the cylindrical projection. By repeating this twisting process a plurality of times, the bundle 10 of reciprocating wires is twisted to the pin terminals when sufficient strength is secured. At this time, place the reciprocating wire bundle as close to the center as possible at the root of the pin terminal to further improve the strength of the wire at the root of the pin terminal after soldering. It is a bobbin with a pin terminal provided at the base. As a result, it is a bobbin with pin terminals that does not require a dedicated twisting wire machine, can handle normal automatic winding, and has a structure that does not cause wire breakage even if stress is applied to the pin.

[0008]

[Effect of the device]

 As described above, a groove is provided on the flange of the pin terminal, and a V-cut protrusion or a plurality of cylindrical protrusions and a pin terminal are formed at the base of the pin terminal in the same direction as wires on the outer surfaces of both ends of the flange. By providing the positioning protrusions, it was possible to facilitate winding work of the coil, improve work efficiency, and prevent wire breakage.

[Brief description of drawings]

FIG. 1 is a perspective view of a bobbin with a pin terminal provided with a V-shaped protrusion according to the present invention.

FIG. 2 is an enlarged perspective view of an embodiment provided with a cylindrical protrusion.

FIG. 3 is an enlarged perspective view of an embodiment provided with a V-shaped protrusion.

FIG. 4 is a side view of FIG. 1 showing an embodiment of the present invention.

FIG. 5 is a perspective view of an embodiment of the present invention.

FIG. 6 is a partially enlarged perspective view showing a conventional embodiment showing a thinning operation.

[Explanation of symbols]

 1 core 2 bobbin 3 pin terminal 4 bobbin 5 wire positioning protrusion 6 V-shaped protrusion 7 cylindrical protrusion 8 folding wire 9 stranded wire 10 reciprocating wire bundle 11 wire 12 groove

Claims (1)

[Scope of utility model registration request] 1. An insulative rectangular tube and a cylindrical winding core, and flanges projecting outward at both ends of the winding core, and a plurality of flanges are provided on the outer surface of one of the flanges along a predetermined opposing side. In a bobbin with a pin terminal provided with a pin terminal, a groove is provided on the flange of the pin terminal portion, and a V-cut projection or a plurality of cylindrical projections at the base of the pin terminal and outer surfaces of both ends of the flange portion. A bobbin with a pin terminal, characterized in that it has a protrusion for positioning the wire on the.