Circuit module, and electronic device using the module
A technology for circuit modules and circuit boards, applied in printed circuits, printed circuits, printed circuit manufacturing, etc., can solve problems such as resin outflow, appearance deterioration, and smoothness reduction.
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Embodiment 1
[0110] The circuit module according to Embodiment 1 of the present invention is used in a portable terminal as a portable electronic device, such as Figures 1A to 1C As shown, it is characterized in that the circuit module includes: a circuit board 1 having a wiring pattern (not shown) including at least one external connection terminal (not shown); a plurality of electronic components 2 mounted on one of the circuit board 1 On the surface 1a; the cylindrical main body 3 is provided on the surface 1a in an upright manner so as to surround these electronic components 2 so that a part of the inner surface 3a of the cylindrical main body 3 provided near the first cylindrical end surface 3t is joined to the surface 1a The turnback portion 4 is arranged on the opposite end of the first cylindrical end surface 3t of the cylindrical main body 3, and has a first surface 4a and a second surface 4b opposite to the first surface 4a, the first surface 4a is substantially perpendicular to ...
Embodiment 2
[0124] Next, Embodiment 2 of the present invention will be described.
[0125] The circuit module according to Embodiment 2 of the present invention is used in a portable terminal as a portable electronic device, and is different from the above-described Embodiment 1 in that the end face 3t of the cylindrical main body 3 is bonded to the face 1a of the circuit board 1, and the sealing resin is filled with In the entire internal space surrounded by the inner surface 3a of the cylindrical main body 3, the first surface 4a of the folded part and the first extended inner surface 5a of the extension part 5, no air cavity is formed, such as Figures 3A to 3C shown. With this configuration, a further improvement in surface smoothness and a thinner design can be achieved.
[0126] That is, it is characterized in that it includes: a circuit board 1 having at least one external connection terminal (not shown); a plurality of electronic components 2 mounted on one face 1a of the circuit...
Embodiment 3
[0132] Next, Embodiment 3 of the present invention will be described.
[0133] The circuit module according to Embodiment 3 of the present invention is used in a portable terminal as a portable electronic device, and the only difference from Embodiment 1 is that the circuit module does not have a through hole 7, such as Figures 4A to 4C shown, while other components are formed in a similar manner.
[0134] In this configuration, any through hole is not formed in the turned-back portion extending from the cylindrical body, by doing so, the strength of the turned-back portion 4 can be improved, and the strength of the whole including the cylindrical body and the extension can be improved. In addition, the magnetic shielding effect by the cylindrical body surrounding the electronic component 2 is improved as a matter of course, and the moisture resistance is also improved because no through holes are provided.
[0135] Incidentally, when filling the sealing resin, it is sometim...
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