JPS6012308Y2 - Transformer mounting mechanism for portable equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a transformer mounting mechanism for portable equipment such as a portable cassette tape recorder with a radio.

2. Description of the Related Art Recently, there has been a trend toward higher fidelity, emphasis on sound quality, and multifunctionality in small portable audio equipment such as cassette tape recorders with radios.

In such audio equipment, the number of various mechanical parts increases in order to realize various functions, and on the other hand, it is desired that the equipment be small and lightweight to be portable.

Therefore, various mechanical parts, printed wiring boards, speakers, microphones, etc. can be arranged organically within the cabinet and held securely, and it is also easy to assemble and economically advantageous. There is a strong desire to develop a certain component attachment mechanism.

By the way, FIG. 1 shows the structure of a conventional cassette tape recorder with radio.

That is, in the figure, reference numeral 11 denotes a cabinet body, which is formed into a substantially box shape by combining a front cabinet 12 and a rear cabinet 13.

On the front panel 121 of this front cabinet 12, there is a received frequency display section 14. A speaker sound emitting section 15, a tape cassette mounting section (not shown), etc. are provided.

Further, on the top plate 122 of the front cabinet 12,
A tape recorder operation section 16, a signal system switching operation section (not shown), an operation section for adjusting volume and sound quality, etc. are installed.

Further, on the rear panel 131 of the rear cabinet 13, a printed wiring board 17 is arranged in parallel, and a transformer 1
8 is fixed with a screw 19.

Further, the transformer 18 is also supported by a support column 20 formed protruding from the inner surface of the front plate 121 of the front cabinet 12.

A carrier handle 21 is attached to the upper part of the cabinet body 11 in the figure, and leg parts 22 are formed at the lower part.

A tape recorder mechanism (not shown) is installed at a predetermined position within the cabinet body 11.

However, in the conventional configuration as described above, there is a disadvantage that the screws 19 for fixing the transformer 18 protrude outward from the rear panel 131 of the rear cabinet 13, detracting from the aesthetic appearance.

Further, since the transformer 1B is only fixed by the screws 19 and the support column 20, the installation is likely to be unstable.

In other words, since this type of cassette tape recorder with radio is carried around, the transformer 18 must be firmly fixed so that it can withstand shocks and the like during transportation.

Furthermore, it would actually be easier to wire the transformer 18 by directly attaching it to the printed wiring board 17, but in consideration of the weight of the transformer 18, the conventional method is shown in FIG. Thus, the printed wiring board 17 and the transformer 18 are mounted separately, and this also goes against the above-mentioned requirements.

This idea was made in consideration of the above circumstances, and it not only allows the transformer to be directly attached to the printed wiring board, but also
It is an object of the present invention to provide an extremely good transformer mounting mechanism for portable equipment that can support the transformer with sufficient stability, has a simple structure, and is easy to manufacture.

Hereinafter, an embodiment in which this invention is applied to a cassette tape recorder with a radio will be described in detail with reference to the drawings.

In FIG. 2, reference numeral 23 denotes a cabinet body, which is constructed into a substantially box shape by combining a rear cabinet 24 with an open front and a cabinet 25 that closes the front opening 241 of the rear cabinet 24. be.

A printed wiring board 26 is supported substantially horizontally between the front cabinet 25 and the rear cabinet 24.

That is, one end of this printed wiring board 26 is connected to a recess 252 formed on the inner surface of the front plate 251 of the front cabinet 25.
The other end is fitted into a recess 242 formed on the inner surface of the rear plate 241 of the rear cabinet 24.

Of the protrusions constituting the recess 242 of the rear plate 241, the upper protrusion in the figure is formed to protrude so as to come into close contact with approximately half of the upper surface of the printed wiring board 26 in the figure.
The support part 27 is made of.

The printed wiring board 26 and the transformer 28 are fastened to the first support portion 27 with a plurality of screws 29 (three in the illustrated case).

In other words, the transformer 28 is directly attached to the printed wiring board 26.

Further, a second support portion 30 is formed protruding from the inner surface of the rear plate 241 to hold the lower right corner of the transformer 28 in the figure.

Further, on the inner surface of the front plate 251 of the front cabinet 25, a third support portion 31 that holds the lower left corner of the transformer 28 in the drawing is formed to protrude.

That is, the transformer 28 is fastened together with the printed wiring board 26 to the first support part 27 by the screws 29, and at the same time, the lower right corner in the figure is held by the second support part 30, and the rear cabinet 24 is held by the second support part 30. When the front cabinet 25 is combined with the front cabinet 25, the lower left corner in the figure is the third support part 31.
It is something that comes to be held.

Here, the recess 2 of the front plate 251 of the printed wiring board 26
For example, an operating component 32 such as a variable resistor is attached near the part fitted to the 52, and this operating component 32
The operating shaft 321 is inserted into the through hole 25 formed in the front plate 251.
3 is inserted, and a knob 33 is attached.

In other words, by installing the printed wiring board 26 substantially horizontally, the knobs of the cassette tape recorder with radio can be arranged on the front panel 251 without any difficulty, and the so-called front-operated type can be realized.

Further, the front plate 251 is provided with a speaker sound emitting section 34, a tape cassette mounting section (not shown), and the like.

Furthermore, a carrier handle 35 is attached to the upper portion of the cabinet body 23 in the figure, and leg portions 36 are formed at the lower portion.

Further, a tape recorder mechanism (not shown) is installed at a predetermined position within the cabinet body 23.

Therefore, according to the configuration of the above embodiment, since the transformer 28 is directly attached to the printed wiring board 26, wiring can be performed effectively, and the transformer 28 is substantially connected to the first to third Since it is supported from three directions by the supporting parts 27, 30, and 31, it can be held sufficiently stably.

Further, when the front cabinet 25 is combined with the rear cabinet 24, the transformer 2B is supported from three directions at the same time, so manufacturing is extremely easy. Since the rear and front cabinets 24 and 25 can be integrally formed when molding, the configuration is also simplified.

Furthermore, since the printed wiring board 26 is installed so as not to overlap the speaker sound emitting section 34 in the lateral direction in FIG. 2, it is possible to improve the sound quality and improve the efficiency of repair and inspection work.

Note that this invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without departing from the gist thereof.

Therefore, as detailed above, according to this invention, a transformer can be directly attached to a printed wiring board, and the transformer can be supported sufficiently stably, and the construction is simple and easy to manufacture. A transformer mounting mechanism can be provided.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing a conventional transformer mounting mechanism for a portable device, and FIG. 2 is a side sectional view showing an embodiment of the transformer mounting mechanism for a portable device according to the present invention. 11... Cabinet, 12... Front cabinet, 13... Rear cabinet, 1
4...Reception frequency display section, 15...Speaker sound emitting section, 16...Tape recorder operation section, 17...Tune printing wiring board, 18... ·Trance,
19...Screw, 2o...Support column, 2
1...Carrier handle, 22, curved leg, 2
3....Cabinet body, 24.Track/Rear cabinet, 25.....Front cabinet, 26.
...Printed wiring board, 27...First support part, 28...Transformer, 29...Screw,
30...Second support part, 31...Third
Support part, 32. Song/operation parts, 33...Knob, 34...Speaker sound emitting part, 35...
- Carrier handle, 36... Legs.

Claims (1)

[Scope of utility model registration request] a rear cabinet with an open front; a front cabinet that closes the front opening of the rear cabinet; a printed wiring board supported substantially horizontally between the front cabinet and the rear cabinet and having a transformer attached thereto; A transformer mounting mechanism for a portable device, comprising a plurality of support parts protruding from a front plate of a front cabinet and a rear plate of the rear cabinet to support the transformer.