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JP2002359482

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DESCRIPTION JP2002359482
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
support member for electronic components.
[0002]
2. Description of the Related Art Conventionally, when fixing an electronic component to a
location to be attached, a vibration-proof material made of a gel-like resin material may be
interposed between the electronic component and the location to be attached. By supporting the
electronic component in this manner, it was possible to suppress the vibration transmitted from
the electronic component to the mounting target location and the vibration transmitted from the
mounting target location to the electronic component.
[0003]
However, since the vibration-proof material comprising this kind of gel-like resin material is very
easy to deform and has low rigidity, it has a lower rigidity than other high-rigidity molded
products. In particular, the smaller the size of the vibration-proof material, the more time it takes
to take out the mold from the mold.
[0004]
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In addition, since most gel resin materials have adhesiveness on the surface, the vibration-proof
material sticks to the hand or the vibration-proof materials stick to each other, so it takes time
and effort to arrange the vibration-proof material. There was a drawback of this.
Furthermore, for example, even if a mounting hole is made in the vibration-proof material and it
is attempted to fix it in a place to be mounted using a screw or a rivet, the mounting hole is easily
deformed and spread. There has been a problem that the anti-vibration material can not be
properly fixed with screws or rivets.
[0005]
The present invention has been made to solve the above-mentioned problems, and its object is to
suppress vibrations transmitted between an electronic component and a part to be attached, and
to be easy to handle and small in size. It is an object of the present invention to provide a
supporting member for electronic parts which is easy
[0006]
[Means for Solving the Problems, and the Effects of the Invention] In order to achieve the abovementioned object, the support member for electronic parts of the present invention is a portion
fixed to a place to be attached, and is flexible. A holding portion formed of a sheet material
having a thickness and a portion holding the electronic component, the holding portion being
formed of a gel-like resin material and fixed to the sheet material. Do.
[0007]
In the electronic component support member, the sheet material constituting the mounting
portion may be any material as long as it has flexibility such that it is elastically deformed to
increase deflection, and, for example, a synthetic resin sheet, a metal sheet Alternatively, a
composite sheet made of a synthetic resin layer and a metal layer can be used.
[0008]
Also, in the gel resin material constituting the holding portion, the base polymer forms a threedimensional network, and the gap between the networks includes the flowable component and
loses the flowability as a whole. It is a resin material in the state.
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As the base polymer, for example, various thermoplastic elastomers such as styrene type, ester
type, amide type and urethane type, and their hydrogenation, modified products by others, or
styrene type, ABS type, olefin type, vinyl chloride Based, acrylic ester based, methacrylic ester
based, carbonate based, acetal based, amide based, halogenated polyether based, halogenated
olefin based, cellulose based, vinylidene based, vinyl butyral based and alkylene oxide based
thermoplastic resins And rubber modified products of these resins are used.
These various thermoplastic polymer organic materials may be used alone or in combination of
two or more.
[0009]
As the flowable component, a liquid or liquid material is usually used at room temperature, and
for example, various softeners for rubber or resin such as mineral oil type, vegetable oil type,
synthetic type can be used.
One of these softeners may be used alone, or two or more may be mixed and used as long as the
mutual compatibility is good. Further, any softeners of hydrophilicity and hydrophobicity can be
used. The hardness of the gel resin material decreases as the amount of the flowable component
added increases, and therefore, the gel resin material may be prepared to have a desired
hardness.
[0010]
According to the electronic component support member configured as described above, the
attachment portion is formed of a flexible sheet material, and the flexibility of the sheet material
damps vibration transmitted through the sheet material, Furthermore, the holding portion is
formed of a gel-like resin material, and the gel-like resin material absorbs vibrational energy to
damp the vibration transmitted through the gel-like resin material. Therefore, for example, even
when vibration is generated from the electronic component, it is difficult to transmit the vibration
to the mounting target portion of the mounting portion, and conversely, even when the mounting
target portion of the mounting portion is vibrated, the vibration is It is difficult to tell.
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[0011]
In addition, the holding portion made of a gel resin material has a low rigidity that is extremely
easy to deform, but since the mounting portion is formed of a sheet material that is more rigid
than the holding portion, the whole is made of a gel resin material Unlike molding, it is easy to
take out the mold after molding.
[0012]
In addition, even when the holding portion is formed of a gel-like resin material having
adhesiveness on the surface, the attachment portion is not sticky, so that if the attachment
portion is gripped, it does not stick to the hand, etc. It doesn't take much time.
Furthermore, if a mounting hole is drilled in the mounting portion, it can be fixed to the
mounting target using a screw or a rivet, unlike the one formed entirely of the gel-like resin
material.
[0013]
In the support member for electronic parts described above, when a synthetic resin sheet is
adopted as the sheet material, processing of the sheet material itself is easy and the
manufacturing cost can be kept relatively low, so the electronic material of the present invention
The component supporting member can be provided at low cost.
[0014]
Moreover, when a metal sheet is employ | adopted as said sheet material, a mounting part can
also be soldered with respect to the location used as attachment object.
In addition, as the sheet material, a base sheet made of an insulating material may be used in
which a conductor pattern electrically connected to the electronic component is formed. In this
case, by bringing a terminal or a lead included in the electronic component held by the holding
unit into contact with or bonding to the conductor pattern, the electronic component and the
other circuit inside the holding unit are electrically conducted outside the holding unit. Can be
connected.
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[0015]
Furthermore, as the above-mentioned electronic parts, various things such as a microphone, a
speaker, a motor, a fan, a hard disk drive, a CD (CD-R / RW), a DVD can be considered. Since the
gel-like resin material absorbs minute vibrations, the sound signal input from the microphone is
less likely to contain a component that causes noise. Therefore, when the present support
member is adopted as a support member for a microphone, for example, in a video or the like, an
audio signal recorded in video can be made into an audio signal of very good sound quality.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention
will be described by way of an example. The support member described below is a member for
supporting a microphone which is one of the electronic components, and is, for example,
incorporated in a video, a mobile phone, etc. together with the microphone.
[0017]
As shown in FIG. 1 and FIG. 2, the support member 1 is composed of an attachment portion 3
and a holding portion 5. The mounting portion 3 is formed of a flexible sheet material 7 made of
polyethylene terephthalate (PET), and the sheet material 7 is a long PET strip 8 cut off along the
perforation 9 It is a thing.
[0018]
The holding portion 5 is formed of a gel-like resin material, and in the present embodiment, the
holding portion 5 is made of a styrenic thermoplastic elastomer as a base polymer, and is a
flowable component in the gaps formed by the network of the base polymer. It is formed of a gellike resin material including paraffin oil.
[0019]
In the sheet material 7 forming the mounting portion 3, two mounting holes 11, two holding
portion fixing holes 13, and one lead wire insertion hole 15 are formed. A wire insertion hole 17,
a microphone storage portion 19, and an opening 21 are formed.
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[0020]
The mounting hole 11 is a hole through which a screw, a rivet, or the like (not shown) is passed
when fixing the support member 1 to a position to be mounted.
Further, when the holding portion 5 is formed, the mounting hole 11 is also used as a positioning
hole for positioning the strip 8 with respect to the mold.
[0021]
The holding portion fixing hole 13 is used to fix the holding portion 5 on the sheet 7 when
forming the holding portion 5 by outsert molding.
More specifically, in the present embodiment, the holding unit 5 sandwiches the sheet material 7
in a mold having a cavity necessary for molding the holding unit 5 and inserts the resin
composition in a heat-melted state into the cavity. It is formed by injecting and cooling the resin
composition in the cavity. At that time, the portion formed on the front side of the sheet 7 by the
resin composition and the portion formed on the back are integrally formed with the portion
passing through the holding portion fixing hole 13, whereby the holding portion 5 is a sheet It is
in a fixed state with respect to 7.
[0022]
The lead wire insertion holes 15 and 17 are used to pass the lead wire L extending from the
microphone M when the microphone M is stored in the microphone storage portion 19 of the
holding portion 5. The microphone storage unit 19 is a portion for holding the microphone M
stored inside.
[0023]
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The opening 21 is an opening for pushing the microphone M into the microphone storage 19
and also serves as a path through which the sound reaching the microphone M passes. According
to the support member 1 configured as described above, the attachment portion 3 is formed of
the flexible sheet material 7, and the flexibility of the sheet material 7 causes vibration to be
transmitted through the sheet material 7. In addition, the holding portion 5 is formed of a gel-like
resin material, and the gel-like resin material absorbs vibrational energy to further damp the
vibration transmitted through the gel-like resin material. Therefore, when the microphone M is
held by the holding unit 5 and the mounting unit 3 is attached to a location to be attached on the
video side, even if the motor of the video vibrates, it is transmitted to the holding unit 5 via the
mounting unit 3 Vibration is damped. Therefore, the external vibration does not cause the
microphone M to pick up the vibration and introduce unnecessary noise.
[0024]
Further, since the easily deformable holding portion 5 is integrally formed with the sheet
material 7, the work of taking out the mold from the support member 1 after molding becomes
easy. Further, even when the holding portion 5 is formed of a gel-like resin material having
adhesiveness on the surface, the attachment portion 3 does not have adhesiveness, so if the
attachment portion 3 is gripped, it does not stick to the hand etc. It is possible to save labor in
the installation work.
[0025]
Further, since the mounting hole 11 is formed in the mounting portion 3, unlike the one formed
entirely of the gel-like resin material, the mounting hole 3 can be fixed to a location to be
mounted using a screw or a rivet. As mentioned above, although embodiment of this invention
was described, this invention is not limited to said one specific embodiment, In addition to this, it
can implement in a various form.
[0026]
For example, although the synthetic resin sheet made of PET was illustrated as the sheet material
7 in the said embodiment, the material of a sheet material may be metal etc. other than a
synthetic resin, for example, the sheet material made of phosphor bronze is used By forming the
mounting portion, it becomes possible to solder the mounting portion.
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[0027]
Further, the material of the sheet material is not limited to a single material, and a sheet material
having a composite structure made of two or more materials may be adopted.
Specifically, for example, as shown in FIG. 3, a sheet material 35 having a structure in which
conductor patterns 33a and 33b electrically connected to an electronic component are formed
on a base sheet 31 made of an insulating material is adopted. It is also good. In this case, the
electronic components held inside the holding portion and other circuits are electrically
connected outside the holding portion by contacting or joining the terminals and lead wires of
the electronic component to the conductor patterns 33a and 33b. Can be connected to
[0028]
Furthermore, in the above embodiment, the support member 1 for holding the microphone M is
illustrated, but the support member of the present invention is applicable to electronic parts that
emit vibration or electronic parts in general that dislike transmitting vibration. Specifically, it can
be configured as a support member for a speaker or a super compact hard disk drive.
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