JPH0438498Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to the structure of a small-capacity transformer used in electrical equipment, control equipment, etc.

(b) Prior art How to electrically connect a small-capacity transformer used to configure the power supply section of electrical equipment, control equipment, etc. to each circuit component based on an electrical circuit wiring diagram. , the transformer was attached to a board or the like, and the coil terminals and the terminals of the component parts were directly connected with connecting wires.

(c) Problems that the invention aims to solve However, this kind of wiring makes it difficult to maintain efficiency while each electrical circuit is miniaturized while the shape of the transformer maintains a certain size. It is difficult to perform manual wiring work. In particular, whereas the electric circuit section is installed on the board in a somewhat flat manner, the installed transformer is located three-dimensionally, and the connecting wires may intersect in space, or, for example, semiconductor elements may be placed between the electrical circuit sections on the board side. It is not possible to connect wires in groups near the board surface, such as directly connecting to the coil terminals of a transformer without connecting them. In addition, if the connections between the terminals located spatially different in terms of wiring are mistaken, the work to correct the incorrect wiring becomes much more difficult than the initial connection work.

(d) Means for solving the problem The transformer according to this invention has a plug base on which protruding plugs electrically connected to the ends of the primary and secondary coils are formed integrally with the transformer body. The transformer is configured as a plug-in type transformer in which a socket base into which the plug is inserted and a socket base having an external connection terminal electrically connected to the socket can be attached to and detached from the transformer main body.

(E) Function Since external connection terminals are further electrically connected to the sockets corresponding to the plugs that are electrically connected to the primary and secondary coil ends, the primary and secondary coil ends and the surrounding electric circuit are connected to each other. The external connection terminal and the connection wire can be connected in advance without directly connecting the component parts.

(C) Embodiment FIG. 1 is a perspective view showing the structure of a plug-in type transformer which is an embodiment of this invention. Transformer body 1
At the bottom of the main body, there is installed a plug stand 2 equipped with a plug 3 which is electrically connected to the primary coil end and the secondary coil end of the transformer inside the main body. It has a transformer main body 1 in which the plug stand 2 is installed, a socket 4 into which the plug 3 is inserted, and an external connection terminal 6 into which the socket 4 is installed and which is electrically connected to the socket 4 inside. A plug-in type transformer is constituted by a socket base 5 provided with a plug-in type transformer. That is, by inserting and connecting the plug 3 into the socket 4, the transformer main body 1, the plug base 2, and the socket base 5 are integrated.

Therefore, if the socket base 5 is installed on a board etc. in advance and the wiring is completed between the peripheral electric circuit components and the external connection terminal 6, the primary coil end can be connected by simply inserting the plug into the corresponding socket. It is also possible to connect the secondary coil end to the parts to be connected.

Also, when plug 3 is inserted into socket 4,
To prevent the transformer body 1 and the socket base 5 from being separated, a hooking piece is provided on the transformer body 1, and the socket base 6
The integral fixation may be ensured by being locked in a locking recess formed in the.

(G) Effect Since the plug-in type transformer according to this invention is constructed as described above, the external connection terminal provided on the socket base and the circuit components on the board side are grouped together near the board surface. It can be connected based on the arrangement of the connecting wires, eliminating the complexity of wiring work between parts that are spatially different from the coil terminals that protrude from the transformer body as in the past, and making it possible to connect the wires in advance with the socket stand. By doing this, the connection to the coil end can be completed by simply inserting the corresponding plug into the socket, and it can be easily attached to and detached from the socket base. In addition, correction work for incorrect wiring can be easily carried out by eliminating the need for the transformer body, whereas conventional work has been done with the transformer attached to the coil terminals of the transformer body.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the structure of a plug-in type transformer which is an embodiment of this invention. 1...Transformer body, 2...Plug stand, 3...Plug, 4...Socket, 5...Socket stand, 6...
...External connection terminal.

Claims (1)

[Scope of utility model registration request] A plug base in which plugs electrically connected to the primary and secondary coil ends are recessed is integrally formed in the transformer body, and a socket into which the plug is inserted and an external part electrically connected to the socket are integrally formed. A plug-in type transformer in which a socket base having a connection terminal is detachably attached to the transformer main body.