JP2558629Y2 - Transformer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to a transformer device used as a power supply of an electronic device.

[Prior Art] Conventionally, there is a three-phase transformer device using three single-phase transformers and combining the three single-phase transformers.

In such a three-phase transformer device, since the primary coil, the secondary coil, and the core generate heat during the operation of the three-phase transformer device, various means are used for heat radiation from the coil and heat radiation from the core.

[Problems to be Solved by the Invention] However, the heat radiation from the coil and the heat radiation from the core in the conventional three-phase transformer device have not been sufficiently satisfactory.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a transformer device having a structure capable of sufficiently radiating heat from a coil and heat from a core.

Means and Action for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a secondary terminal receiving member having a core receiving tongue piece attached to a chassis in a screen-like manner, and a secondary terminal receiving member having the same. A plate-like secondary terminal is attached, and one end of a core is installed on the core tongue piece, and a transformer installed on the chassis, and the other end of the core of the transformer is installed on an upper surface, and A core holder mounted on the chassis; and a core holder attached to the core holder and pressing the transformer core, wherein a plate-like heat generated by the secondary coil is provided. The heat is radiated from the secondary terminal to the chassis via the secondary terminal fitting, and the heat generated from the core is
The heat is radiated to the chassis via the core tongue piece of the next terminal receiving member, and is also radiated to the chassis from the core holding member and the core receiving member.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which a plate-like chassis 1 is shown.
A substantially L-shaped plate-like secondary terminal receiving member 2 is mounted on the upper side in a screen-like manner by screws 3. As shown in FIG. 2, this secondary terminal receiving member 2 is provided with six secondary copper plate terminal mounting through-holes 4 and three core receiving tongue pieces 5 whose tongue pieces are cut and raised substantially horizontally. Is provided. On the chassis 1, three single-phase transformers 6 are installed. Each single-phase transformer 6
Is a part of the outer periphery of the primary coil 7 as shown in FIG.
A primary terminal 9 is provided at the beginning and end of winding of the primary coil 7, and a secondary copper plate terminal 10 is provided at the beginning and end of winding of the secondary coil 8. . Screw holes 11, 1 are provided at the ends of the secondary copper plate terminals 10.
Two are provided. A core 13 is provided in the primary coil 7 as shown in FIG. As shown in FIG. 1, each of the secondary copper plate terminals 10 of the three single-phase transformers 6 installed on the chassis 1 has a secondary copper plate terminal mounting transparent The screw 4 is screwed into the hole 4 and the screw hole 11. Each core of the three single-phase transformers 6
One end of the core 13 is set on the core tongue piece 5, the other end is set on the core receiving member 15, and a core holding member 16 is provided above the core 13. This core bracket
As shown in FIG. 2, the core holder 15 is provided with a plurality of screw holes 17 and the core holder 15 is provided with a plurality of screw holes 17.
A plurality of through holes 18 are provided in 16. That is, as shown in FIG. 1, the core holder 15 is inserted through the through hole 18 of the core holder 16.
By screwing a screw 19 into the screw hole 17, the core 13 is mounted so as to sandwich the core 13 between the core receiving member 15 and the core pressing member 16. A contact portion between the core 13 and the core tongue piece 5 of the secondary terminal fitting, the chassis 1 and the core fitting.
15 contact portion, core 13 and core receiving member 15 contact portion,
A compound is applied to a contact portion between the core 13 and the core holding member 16, respectively.

That is, three single-phase transformers are combined and used as a three-phase transformer device. First, three sets of single-phase coils 7, 8 as shown in FIG. 4 are manufactured. A core 13 is inserted into each of the coils 7 and 8, and three sets of single-phase transformers 6 as shown in FIG. 3 are manufactured. By combining three sets of single-phase transformers 6 as shown in FIG. 2, a three-phase transformer device as shown in FIG. 1 is completed.

Next, the heat radiation effect of the three-phase transformer device will be described. The heat generated by the three-phase transformer device is generated from the coils 7, 8 and the core 13.

Heat radiation from the secondary coil 8 The heat generated from the secondary coil 8 is radiated by the secondary copper plate terminal 10. In particular, the secondary copper plate terminal 10 is connected to the secondary terminal receiving member 2 and further to the chassis 1 so as to enhance the heat radiation effect.

Heat radiation from the core 13 The heat generated from the core 13 is made uniform by using the core receiving tongue 5 of the secondary terminal receiving member, the core receiving member 15 and the core holding member 16, and the chassis 1 to enhance the heat dissipation effect.

Further, a contact portion between the core 13 and the core tongue piece 5 of the secondary terminal receiving member, a contact portion between the chassis 1 and the core receiving member 15, a contact portion between the core 13 and the core receiving member 15, and a core 13 and the core By applying a compound to each of the contact portions with the presser fitting 16, the heat radiation effect can be further enhanced.

In the above embodiment, the three-phase transformer device has been described.

[Effects of the Invention] As described above, according to the present invention, it is possible to provide a transformer device having a structure capable of sufficiently releasing heat from a coil and heat from a core.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG.
FIG. 3 is a partially exploded perspective view, FIG. 3 is a perspective view showing a single-phase transformer according to the present invention, and FIG. 4 is a perspective view showing a single-phase coil according to the present invention. 1 ... chassis, 2 ... secondary terminal receiving bracket, 6 ... single-phase transformer, 7 ... primary coil, 8 ... secondary coil, 10 ...
... Secondary copper plate terminal, 13 ... Core, 15 ... Core holder,
16 ... Core holding bracket.

Claims (2)

(57) [Scope of request for utility model registration] 1. A secondary terminal receiving member having a core receiving tongue piece mounted on a chassis in a screen shape, a plate-like secondary terminal is mounted on the secondary terminal receiving member, and a core is provided on the core receiving portion. A transformer installed on the chassis, one end of which is installed on the chassis; a core fitting installed on the chassis with the other end of the core of the transformer installed on the upper surface; and an attachment to the core fitting. And a core presser fitting for pressing a core of the transformer. 2. A contact portion between a core and a core receiving member of a secondary terminal receiving member, a contact portion between a chassis and a core receiving member, a contact portion between a core and a core receiving member, and a contact portion between a core and a core holding member. 2. The transformer device according to claim 1, wherein a compound is applied to each of the contact portions.