JP2541606Y2 - Electrical equipment - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to electrical equipment.

(Conventional technology and its disadvantages)

FIG. 3 is a side view showing a state in which a housing b of an adapter (converter) for converting 100 V AC input from a plug blade a connected to a household AC power supply to DC of 6 to 12 V is omitted. c is a transformer for first stepping down the input 100 V AC. d is a second winding body around which the secondary winding e is wound, and f is a connection pin around which the secondary winding e is wound and connected. And the secondary winding e is wound,
The connected connection pin f is inserted into a hole of the circuit board g.

FIG. 4 shows the adapter of FIG.
It is an enlarged rear view of an adapter for converting to direct current,
This shows a state in which the secondary winding e is wound around and connected to the connection pin f. In an electric device such as this adapter or an electric device incorporating such a converter, the secondary winding e is wound and connected to the connection pin f. Once connected,
A force acts in the pulling direction of the secondary winding e, and this force tends to tilt the connecting pin in the pulling direction. In particular, this tendency largely occurs in the winding start and collinear connecting pins where the force acts strongly. . For this reason, there is a problem that the connection pins f cannot be smoothly inserted into the holes of the circuit board g, and it takes time for the manufacturing operation.

[Purpose of the invention]

The present invention has been made in view of the above-described problems in the related art, and an object of the present invention is to provide an electric device that can smoothly insert a connection pin into a hole of a circuit board. To provide.

[Means for solving the problem]

In the electric device of the present invention, a first winding body on which the primary winding is wound and a second winding body on which the secondary winding is wound are provided, and the second winding body is provided. A plurality of connection pins to which a circuit board is electrically connected are provided in a line at one end, and between the plurality of connection pins, toward the other end of the second winding drum portion. An extending connection recess is provided, and at least one of the connection recesses extends in a direction substantially perpendicular to the connection recess and is located at the other end of the connection pin to which the secondary winding is connected. A concave portion is provided continuously at the other end of the connection concave portion; the secondary winding wound around the second winding drum portion is connected to the corresponding connection pin through the auxiliary concave portion; A concave portion corresponding to each of the connection pins is provided in a notch at an end of the circuit board. Wherein the one end side of the body portion to the other end the connecting pin is inserted to fit the recesses.

[Action]

In such an electric device, the secondary winding wound around the second winding body is connected to the corresponding connection pin through the auxiliary recess provided in the connection recess, and thus the secondary winding is connected to the connection recess. It extends substantially parallel and is connected to the connection pin, and the direction of the force acting on the connection pin is the direction in which the connection recess extends. Therefore, even if the connection pins are slightly inclined, the inclination direction is the direction in which the connection recesses extend, and thus the connection pins are easily inserted into the pin connection recesses of the circuit board to be mounted later, and the circuit board is easily mounted. Becomes

[Embodiment] Hereinafter, an embodiment of an electric device according to the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a side view showing an adapter as an embodiment of the electric device of the present invention with a housing omitted, and the adapter is a 100 V input from a plug blade connected to a household AC power supply. This is for converting an alternating current into a direct current of 6 V, for example.

Reference numeral 10 denotes a transformer (electromagnetic means) for first stepping down the input 100 V AC, and reference numeral 12 denotes conversion means for converting the AC stepped down by the transformer 10 to DC.

Reference numeral 14 denotes a winding frame for a transformer, which is mainly made of insulating synthetic resin.

In the winding frame 14, 16 is the first winding on which the primary winding 18 is wound.
The body portion 20 is a second winding body portion around which the secondary winding 22 is wound, and the first winding body portion 16 and the second winding body portion 20 are provided in series. The first winding body 16 is sandwiched between a front flange portion 24 and an intermediate flange portion 26, and the second winding body portion 20 includes an intermediate flange portion 26 and a rear flange portion 28.
Sandwiched by

Front collar portion 24, first roll body portion 16, intermediate collar portion 26, second roll body portion 20
A layered core 30 is provided in a core receiving hole that passes through the bobbin 14 through the inside of the rear flange portion 28 so as to protrude to both sides. Numeral 31 denotes a steel plate constituting the laminated core 30, and the steel plates 31 are insulated from each other by an insulating material.
The core does not necessarily need to be a stratified core.
The core only needs to be made of at least a conductive ferromagnetic material, and may be made of only a conductive ferromagnetic material. 32 is a plug blade electrically connected to a household power supply.

On the upper left side of the front flange 24 in FIG.
A plug holding projection 34 is provided for embedding the base and fixing the base. Reference numeral 36 denotes a terminal which constitutes a part of the base of the plug blade 32, protrudes above the plug holding projection 34, and is connected to the end 18a of the primary winding 18.

One end (lower end) of the rear flange portion 28 of the second winding body 20 is provided with four pins at intervals in a lateral direction (a direction perpendicular to the paper surface in FIG. 1 and a horizontal direction in FIG. 2). Planting projections 38,4
0, 41 and 42 are provided. These projections 38, 40, 41 and
2, connection pins 44, 46, 47 and 48 are implanted as shown in FIG. 2, and the secondary winding 22 is electrically connected to the connection pins 44, 46, 47 and 48 as described later. Connected.

Connection recesses 62, 64, and 66 are provided between the pin implantation projections 38, 40, 41, and 42, respectively. Connection recesses 62, 64 and
66 extend upward from one end to the other end of the rear flange portion 20 in FIGS. 1 and 2, and the concave portions 62 and 66 present on both sides extend beyond the central concave portion 64. In a specific example,
In addition, auxiliary recesses 50 and 54 are provided at the bottoms of the recesses 62 and 66 on both sides. One auxiliary recess 50 extends to the left in FIG. 2 substantially perpendicular to the connection recess 62 and above the connecting pin 44, and the other auxiliary recess 54 substantially to the right to the connection recess 66 in FIG. And extends above the connection pin 48.

56 is a circuit board in the conversion means 14. Circuit board
56 is provided with electrical elements such as capacitors and diodes. At the upper end of the circuit board 56 in FIG.
Four recesses spaced apart in the horizontal direction (not shown,
These correspond to connection pins 44, 46, 47 and 48). When the circuit board 56 is mounted on the rear flange 28 of the second winding drum 20 as shown in FIG. 1, each of the connection pins 44, 46, 47 and 48 is connected to the corresponding recess (not shown) of the circuit board 56. The connection pins 44, 46, 47 and 48 are electrically connected to terminals (not shown) of the circuit board 56 as required.

The connection mode of the secondary winding 22 will be described mainly with reference to FIG.

One end 22a (start end) of the secondary winding 22 is wound and connected to the connection pin 44. Then, the secondary winding 22 is hooked on the auxiliary recess 50 through the connection recess 62, and then wound around the second winding body 20. Next, the second winding drum portion 20 is hooked on the auxiliary concave portion 54 as the collinear line 22b through the connection concave portion 66, wound and connected to the connection pin 48, and is again hooked from the connection pin 48 through the connection concave portion 66 to the auxiliary concave portion 54. , Volume 2 trunk 20
Wound around. After that, the connection concave portion is formed from the second winding drum portion 20.
The other end 22b (termination) is wound around and connected to the connection pin 46.

Since the secondary winding 22 is connected as described above, as can be easily understood from FIG. 2, at one end 22a of the secondary winding 22, the connecting pin 44 and the second winding body 20 are connected. 2 and extends linearly upward in FIG. 2 substantially parallel to the connection recess 62, and the collinear line 22b of the secondary winding 22 also extends substantially between the connection pin 48 and the second winding body 20 into the connection recess 66. It extends linearly upward in FIG. Therefore, a connection pin on which relatively high tension acts
Even if there is a tendency for the 44 and the connecting pin 48 to tilt, they only tilt upward in FIG. 2 substantially parallel to the connecting recesses 62 and 66, in other words, in the direction of insertion of the circuit board 56. Therefore, even when the circuit board 56 is inserted, the connection pins slightly inclined
44 and 48 do not hinder insertion, and the above-mentioned insertion work can be performed smoothly.

The embodiment of the electric device according to the present invention has been described above. However, the present invention is not limited to the embodiment, and various changes and modifications can be made without departing from the scope of the present invention.

For example, in the illustrated embodiment, the secondary winding 22 connected thereto is hooked on the auxiliary recesses 50 and 54 in connection with the connection pins 44 and 48 on which relatively large tension is applied. Accordingly, the secondary winding 22 connected to the connection pin 46 to which a relatively weak tension acts may be hooked on the auxiliary recess.

[Effect of the invention]

In the electric device according to the present invention, since the portion of the secondary winding extending between the connection pin and the second winding body is hooked on the auxiliary recess, even if the connection pin is slightly inclined, it is substantially parallel to the connection recess. The circuit board can be easily mounted even if the connection pins tend to be inclined.

[Brief description of the drawings]

FIG. 1 is a side view showing an adapter as an embodiment of the electric device of the present invention without a housing, FIG. 2 is an enlarged rear view of the adapter of FIG. 1, and FIG. FIG. 4 is an enlarged rear view of the adapter for converting 100 V AC of the adapter of FIG. 3 to DC of 6 V, for example, with the housing omitted. 10 Transformer 18 Primary winding 22 Secondary winding 22a One end of secondary winding 22b Other end of secondary winding (collinear) 30 Layered core 32 ... Plug blades 38,40,41 and 42 ... Pin projections 44,46,47 and 48 ... Connection pins 50,54 ... Auxiliary recesses 62,64,66 ... Connection recesses

Claims (1)

(57) [Scope of request for utility model registration] 1. An electric device having electromagnetic means in which a primary winding and a secondary winding are electromagnetically coupled by a core mainly composed of a conductive ferromagnetic material, wherein the primary winding is wound. A first winding drum portion and a second winding drum portion around which the secondary winding is wound, and a circuit board is electrically connected to one end of the second winding drum portion. A plurality of connection pins are provided in a line, and a connection recess extending toward the other end of the second winding drum portion is provided between the plurality of connection pins, and at least one of the connection recesses is provided. An auxiliary recess extending in a direction substantially perpendicular to the connection recess and located at the other end of the connection pin to which the secondary winding is connected is continuous with the other end of the connection recess. The secondary winding wound around the second winding drum portion is provided through the auxiliary recess. The circuit board is connected to the connection pin, and an end portion of the circuit board is provided with a cutout corresponding to the connection pin, and the circuit board is moved from one end to the other end of the second winding drum. The electric device, wherein the connection pins are inserted so as to fit into the recesses.