JP2003273547A - Substrate apparatus, substrate-supporting member, and portable electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce size and weight of a mobile radio, and at the same time to provide a substrate-supporting member having sufficient strength for preventing damage in a connector even if excessive external force is applied. <P>SOLUTION: Upper and lower projections 203 and 204 are provided in a metal frame. Respective projections are fitted into a position control hole 401 provided on an upper substrate 101 and a position control hole 402 provided on a lower substrate 102 to fix the upper and the lower substrates. The metal frame is set to be the minimum size required for opposing force operating on the substrates. As a result, large deformation and damage can be prevented in an insertion section for allowing the connector to insert a resin molding 105 even if an excessive external force is applied to the substrates, and hence damage can be prevented in the connector. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board supporting member, and can be applied to, for example, a mobile electronic device such as a mobile radio having a board connecting connector for electrically connecting a plurality of printed boards.

[0002]

2. Description of the Related Art Conventionally, as a structure for holding a connector for connecting printed boards, a reinforcing frame is provided around the connector so that an external force is not applied to the connector, or a resin provided for preventing contact between the connector boards. In the molded product, the position of the substrate and the resin molded product is regulated by inserting the connector into the insertion part of the insertion part shape provided in the resin molded product and holding the connector in the resin molded product.
A structure that reduces the external force applied to the connector has been generally adopted.

[0003]

However, in the above-mentioned conventional structure for holding the connector, when an excessive external force is applied by dropping or the like, the insertion portion provided in the resin molded product is largely deformed or damaged, Therefore, external force is directly transmitted to the connector itself that regulates the positions of the substrate and the resin molded product, and the connector is damaged.

Even if the connector is not damaged,
Land peeling or solder cracks at the soldering portion occurred, resulting in poor electrical connection.

In order to avoid these problems, it is conceivable to improve the connector holding strength by using a resin molded product as a metal member, but this is not preferable in a mobile radio device in which miniaturization and weight reduction are desired. Also, in order to solve the problem of the soldering part, it is possible to select a connector with a large pitch between terminals for the purpose of improving the solder strength, but this leads to an increase in the board mounting area, and the mobile radio Not good for

The present invention has been made in view of the above circumstances, and has a substrate support having sufficient strength to prevent damage to the connector even when an excessive external force is applied while reducing the size and weight of the mobile wireless device. It is intended to provide a member.

[0007]

In order to solve the above problems, the substrate device of the present invention is arranged so as to face each other in substantially parallel,
First connected via a fixed connector to each
A substrate and a second substrate, a spacer interposed between the first substrate and the second substrate to prevent contact between the first substrate and the second substrate, and a spacer for the first substrate and the second substrate. And a support member which is interposed between and fixes the first substrate and the second substrate and positions the spacer.

The substrate supporting member of the present invention is arranged so as to face each other substantially in parallel and is inserted between the first substrate and the second substrate which are connected to each other via the connectors fixed to the first substrate and the first substrate. And a substrate supporting / fixing unit that supports and fixes the second substrate, and a spacer fixing unit that fixes a spacer interposed between the first substrate and the second substrate.

According to these structures, when an excessive external force is applied to the substrates, it is possible to counteract the force acting in the direction of displacement of the substrates, the force pressing the substrates, etc., so that the connector is prevented from being damaged. be able to.

The substrate supporting member of the present invention has a structure in which the spacer is insert-molded.

According to this structure, since the spacer and the connector holding member are firmly connected, it is possible to secure sufficient strength for holding the connector.

The substrate supporting member of the present invention comprises a claw recess having a shape for fitting with a fixing claw provided on the spacer, and the fixing claw is fitted into the claw recess to form the spacer. Adopt a fixed structure.

According to this structure, since the fixing claw of the spacer can be fitted into the claw recess, even when the insert molding cannot be performed, the strength sufficient to hold the connector is maintained as in the case where the insert molding can be performed. Can be secured.

The board supporting member of the present invention has a plurality of housing mounting portions which are provided at predetermined intervals by inserting a member for fixing the board device into a housing containing the board device of the portable electronic device. The configuration including is adopted.

According to this structure, since the housing and the substrate can be coupled via the substrate supporting member, even if an excessive external force is applied to the housing due to a drop or the like, the external force applied to the substrate can be suppressed. it can.

A portable electronic device of the present invention has a structure including the above-mentioned substrate device or substrate supporting member.

According to this structure, when an excessive external force is applied to the boards, it is possible to counteract the force acting in the direction of displacement between the boards and the force pressing the boards, so that the connector is prevented from being damaged. You can

According to the board arranging method of the present invention, the first board and the second board which are arranged in parallel and face each other and are connected to each other through the connectors fixed thereto, and the first board and the first board are fixed. Positioning of a spacer interposed between the two substrates and preventing contact between the first substrate and the second substrate is performed by a predetermined indicating member.

According to this method, when an excessive external force is applied to the boards, it is possible to counteract the force acting in the direction of displacement between the boards and the force pressing the boards, so that the connector is prevented from being damaged. You can

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The essence of the present invention is that a metal frame is provided with a protrusion, and both substrates are fixed by being fitted into a position regulating hole provided in the substrate. The metal frame opposes the force acting on the substrate. It is to make the size as small as possible. With this, even when an excessive external force is applied to the substrate, it is possible to prevent large deformation or damage of the insertion portion through which the connector inserts the resin molded product, and it is possible to prevent damage to the connector.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1) FIG. 1 is an exploded perspective view of a substrate inside a mobile radio device according to Embodiment 1 of the present invention.
In this figure, the upper substrate 101 is a concave connector 10
3 is provided. The lower substrate 102 is a convex connector 104.
It is equipped with. Concave connector 103 and convex connector 104
Can be connected, and the upper substrate 101 and the lower substrate 102 are arranged so as to face each other substantially in parallel, and when the concave connector 103 and the convex connector 104 are connected, the electronic devices mounted on the upper substrate 101 and the lower substrate 102 are connected. The circuit is ready for operation. The resin molded product 105 is designed so that components such as electronic circuits mounted on the upper substrate 101 and the lower substrate 102 do not interfere with each other.
It is a spacer provided to keep a constant interval. The insertion portion 106 is provided in the resin molded product 105, and is a region for inserting the concave connector 103 and the convex connector 104 to connect both connectors. Metal frame 1
Reference numeral 07 denotes a structure that can be attached to the resin molded product 105, and has a protrusion that is inserted into the position regulating holes provided in the upper substrate 101 and the lower substrate 102.

FIG. 2 is a perspective view showing the structure of the metal frame according to the first embodiment of the present invention. As shown in FIG. 2, the metal frame 107 is provided with a base 201 having a predetermined thickness, a substrate support portion 202 having a predetermined height on the base 201, and a predetermined space provided on the substrate support portion 202. Two protruding protrusions 203, two lower protrusions 204 (not shown) provided on the lower surface of the base 201 at a predetermined interval, and both ends of the base 201. It is composed of a housing attachment portion 205 and the like for fixing with screws or the like.

FIG. 3 is a perspective view of the inside of the mobile radio as viewed from the top substrate side. FIG. 3 shows a substrate Assy 301 (substrate device) in which a resin molded product 105 and a metal frame 107 are molded between the upper substrate 101 and the lower substrate 102 of FIG. 1, and the concave connector 103 and the convex connector 104 are shown.
Are connected. In this figure, FIG. 4 shows a cross-sectional view taken along a dotted line.

FIG. 4 is a sectional view showing the structure of the connector holding structure according to the first embodiment of the present invention. 4, parts common to FIG. 1 are assigned the same reference numerals as in FIG.
The detailed description is omitted.

The metal frame 107 has an upper protrusion 203.
The upper protrusion 203 is fitted in the position regulating hole 401 provided in the upper substrate 101, and the lower protrusion 204 is fitted in the position regulating hole 402 provided in the lower substrate 102. The two upper protrusions 203 provided on the metal frame 107 are provided at a predetermined interval, and the two lower protrusions 204 are also provided at a predetermined interval. Also, the metal frame 107
Is made of metal. From these things, the metal frame 107 can sufficiently oppose the force acting in the displacement direction between the upper substrate 101 and the lower substrate 102, so that the displacement between the substrates can be suppressed.

Further, the metal frame 107 is provided with a board supporting portion 202, which prevents interference between the boards in the same manner as the resin molded product 105 provided so that electronic circuits mounted on the boards do not interfere with each other. It has a height that fits between the substrates to hold it down. This makes it possible to prevent the connector from being crushed even when a force pressing between the substrates is exerted, and also to prevent the electronic circuit or the like mounted on the substrates from being damaged by contact.

Further, the base 201 of the metal frame 107
Has a predetermined thickness, and the resin molded product 105 and the lower substrate 1
It will be installed without a gap between it and 02. This makes it possible to prevent the connector from being damaged even when an excessive external force is applied to the substrate such that the insertion portion of the resin molded product 105 is largely deformed due to a drop or the like.

As described above, by providing the metal frame 107, the metal frame 107 has a function of restricting the positions of the substrate and the resin molded product 105, which is conventionally provided in the connector.
At the same time, since the external force acting on the substrate can be absorbed as described above, it is possible to prevent large deformation and damage of the insertion portion. This can prevent the connector from being damaged.

FIG. 5 is a perspective view showing a structure of a molded product by insert molding according to the first embodiment of the present invention. The molded product Assy 501 is formed by insert-molding the metal frame 107 on the resin molded product 105 to integrate them. By integrally molding the resin molded product 105 and the metal frame 107 as described above, the two are firmly coupled to each other, so that it is possible to provide a connector holding structure having sufficient strength.

FIG. 6 is an exploded perspective view of the mobile radio device according to the first embodiment of the present invention. The cover housing 601 includes a display portion, operation buttons, and the like, and a case housing 602.
Forms a mobile radio housing by combining with the cover housing 601. The substrate Assy 301 is attached by being sandwiched between the cover housing 601 and the case housing 602, and constitutes the mobile radio main body. Substrate Assy30
1 includes a metal frame 107, and the metal frame 107 includes a housing attachment portion 205. The mounting screws 603 are used for the cover housing 601 and the substrate Assy 30.
1. The case housing 602 can be fixed. This state is shown in the sectional view of FIG. In Figure 7,
It can be seen that the mounting screw 603 penetrates the screw hole provided in the case housing 602 and the housing mounting portion 205 provided in the metal frame 107 and reaches the screw hole provided in the cover housing 601. As a result, the external force applied to the cover housing 601 and the case housing 602 is absorbed by the connection between the housing mounting portion 205 provided on the metal frame 107 and both housings.
The external force applied to can be suppressed. Therefore, the connector holding strength in the housing can be further improved.

As described above, according to this embodiment, the protrusions provided on the metal frame are fitted into the position regulating holes provided on the substrates to fix both the substrates, and the necessary minimum force that can oppose the force acting on the substrates. By using a metal frame having a size, it is possible to provide a lightweight substrate supporting member that prevents damage to the connector even when an excessive external force is applied to the substrate.

(Embodiment 2) In this embodiment, a connector holding structure having sufficient strength will be described as in the case where insert molding is not possible, just as when insert molding is possible.

FIG. 8 is a perspective view showing the structure of the metal frame and the resin molded product according to the second embodiment. This figure is
Shown is the case viewed from the bottom substrate side.
1, a fixed claw 803 is provided, and a metal frame 802 is provided with a claw recess 804. The fixed claw 803 is a claw-shaped projection provided to fix the metal frame 802 that cannot be insert-molded.

FIG. 9 is a perspective view showing the structure of the metal frame 802 according to the second embodiment of the present invention.

The claw recess 804 has a shape in which a fixed claw 803 provided on the resin molded product 801 is fitted.

FIG. 10 is a perspective view seen from the top substrate side inside the mobile radio device according to the second embodiment of the present invention. Figure 1
0 molds a resin molded product 801 and a metal frame 802 between the upper substrate 101 and the lower substrate 102 of FIG.
The state where the concave connector 103 and the convex connector 104 are connected is shown. In this figure, FIG. 11 shows a cross-sectional view taken along a dotted line.

FIG. 11 is a sectional view showing the structure of the connector holding structure according to the second embodiment of the present invention. 11, the same parts as those in FIG. 4 are denoted by the same reference numerals as those in FIG. 4, and detailed description thereof will be omitted. In this figure, the fixed claw 803 and the claw recess 804 are combined and integrated, and the metal frame 802 is fixed. As a result, a connector holding structure having sufficient strength can be realized even when insert molding cannot be performed.

As described above, in the present embodiment, even when the metal frame and the resin molded product cannot be insert-molded, the metal frame is provided with the claw recess, the resin molded product is provided with the fixed claw, and the two are combined to form the insert. It is possible to provide a substrate supporting member having sufficient strength as in the case of being moldable.

In each of the above-described embodiments, the mobile radio device is described as an example, but the present invention is not limited to this, and can be widely applied to portable electronic devices.

Further, in each of the above-described embodiments, the metal frame has been described by using metal as an example, but the present invention is not limited to this, and any material can be used as long as it can withstand an impact when an excessive external force is applied to the substrate. Anything is fine.

[0042]

As described above, according to the present invention,
By inserting the protrusion provided on the metal frame into the position regulation hole provided on the board, fixing both boards, and by making the metal frame of the minimum necessary size that can counteract the force acting on the board, excessive connector It is possible to provide a lightweight substrate support member capable of preventing damage to the connector even when an external force is applied.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a substrate inside a mobile wireless device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the configuration of the metal frame according to the first embodiment of the present invention.

FIG. 3 is a perspective view seen from the top substrate side inside the mobile wireless device according to the first embodiment of the present invention.

FIG. 4 is a sectional view showing the configuration of the connector holding structure according to the first embodiment of the present invention.

FIG. 5 is a perspective view showing a structure of a molded product by insert molding according to the first embodiment of the present invention.

FIG. 6 is an exploded perspective view of the mobile wireless device according to the first embodiment of the present invention.

FIG. 7 is a cross-sectional view showing the configuration of the connector holding structure according to the first embodiment of the present invention.

FIG. 8 is a perspective view of a metal frame and a resin molded product according to the second embodiment of the present invention.

FIG. 9 is a perspective view showing a configuration of a metal frame according to Embodiment 2 of the present invention.

FIG. 10 is a perspective view seen from the top substrate side inside the mobile wireless device according to the second embodiment of the present invention.

FIG. 11 is a sectional view showing the configuration of a connector holding structure according to a second embodiment of the present invention.

[Explanation of symbols]

101 top substrate 102 bottom substrate 103 recessed connector 104 convex connector 105,801 Resin molded products 106 insertion part 107, 802 Metal frame 201 base 202 substrate support 203 Upper protrusion 204 Lower protrusion 205 Case attachment part 301 Substrate Assy 401, 402 Position restriction hole 501 Molded product Assy 601 cover housing 602 case housing 603 mounting screw 803 Fixed claw 804 Claw recess

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ken Sato             3-1, Tsunashima-Higashi 4-chome, Kohoku-ku, Yokohama-shi, Kanagawa             Matsushita Communication Industry Co., Ltd. F-term (reference) 5E348 AA03 AA16 AA32

Claims (7)

[Claims] 1. A first substrate and a second substrate, which are arranged in parallel and face each other and are connected to each other through connectors fixed to each other, and are interposed between the first substrate and the second substrate. A spacer that prevents contact between the first substrate and the second substrate, and a spacer that is interposed between the first substrate and the second substrate to fix the first substrate and the second substrate together with the spacer. A substrate device, comprising: a supporting member for positioning. 2. A first substrate and a second substrate, which are arranged substantially parallel to each other and are opposed to each other, and are connected to each other via connectors fixed to the first and second substrates, respectively. A substrate supporting member, comprising: a substrate supporting and fixing part for supporting and fixing; and a spacer fixing part for fixing a spacer interposed between the first substrate and the second substrate. 3. The substrate supporting member according to claim 2, wherein the spacer is insert-molded. 4. A claw recess having a shape for fitting with a fixing claw provided on the spacer, wherein the fixing claw is fitted into the claw recess to fix the spacer. The substrate supporting member according to claim 2. 5. A housing mounting portion is provided, in which a member for fixing the board device is inserted into a housing that houses the board device of the portable electronic device, and a plurality of housing mounting portions are provided at predetermined intervals. The substrate supporting member according to any one of claims 2 to 4. 6. A portable electronic device comprising the substrate device or the substrate support member according to claim 1. Description: 7. The fixing of a first substrate and a second substrate, which are arranged substantially parallel to each other and are connected via connectors fixed to the respective substrates, and the first substrate and the second substrate. A method of arranging a substrate, characterized in that a spacer is inserted and the spacer for preventing contact between the first substrate and the second substrate is positioned by a predetermined pointing member.