JP3107008U - Member mounting structure - Google Patents

Abstract

A member mounting structure capable of accurately mounting a fan holder to a casing in which burring cannot be formed is provided.
In a member mounting structure in which a fan holder is attached to the surface side of a housing having a mounted portion having a thickness that cannot form a burring, the fan holder includes a mounting portion in which a burring is formed. The mounting portion 13 is protruded outward with respect to the mounting surface of the housing 1 to which the fan holder 2 is mounted, and the mounting portion 23 is formed so as to be freely inserted between the mounting surface and mounting. The side edge of the portion 23 is bent to the back side of the mounting portion 23 to form a bent portion that protrudes in the thickness direction from the tip portion of the burring 24, and the mounting portion 23 is inserted into the gap to insert the fan holder 2 and the housing 1. Were concatenated.
[Selection] Figure 1

Description

  The present invention relates to a member mounting structure.

  Conventionally, in an electronic device such as a DVD player, an electronic component becomes hot as it is used for a long time. Therefore, a cooling fan and a heat radiating plate are provided in the casing of the electronic device, and the electronic components can be air-cooled by the cooling fan and the heat radiating plate.

  Here, as a structure to attach the cooling fan and heat sink to the housing, the heat sink, fixing member and printed wiring board are fastened together with screws, preventing rotation of the heat sink due to screw tightening torque, and simple And the structure of attaching reliably is disclosed (for example, refer patent document 1). Further, a shielding structure is disclosed in which a bent portion that closes the gap between the wall surface portions of the shield case is formed, and unnecessary radiated electromagnetic waves from the joint of the shield case can be shielded and the rigidity in the vicinity of the four corners is increased (for example, (See Patent Document 2). In addition, a shield structure is disclosed in which a plurality of rectangular plate springs are formed on the wall surface of the shield case, the fan cover and the electronic device casing are electrically connected by the plate springs, and unnecessary radiated electromagnetic waves are shielded. (For example, refer to Patent Document 3).

By the way, when a cooling fan is provided in an electronic device, the fan holder which protects a cooling fan is attached to the surface of a housing | casing. When the fan holder is attached to the surface of the housing, a burring is formed on the housing, and a fastener such as a screw is screwed onto the burring. Here, since the burring generally cannot be formed unless the plate thickness is 0.8 mm or more, the casing is formed with a thickness of 0.8 mm or more.
Utility Model Registration No. 3098236 Japanese Patent Laid-Open No. 10-145078 Japanese Patent Laid-Open No. 10-145079

However, in order to exhibit the strength required for the housing, even if the thickness of 0.8 mm is not necessarily required, it had to be formed to a thickness of 0.8 mm or more in order to form a burring . If the casing is thickened to form burring, the weight of the casing increases, and the amount of material necessary for manufacturing the casing increases, which increases the manufacturing cost of the casing.

  Therefore, the present invention has been made to solve the above-described problem, and it is not necessary to increase the thickness of the housing in order to form the burring, and to provide a member mounting structure that can reduce the manufacturing cost. Objective.

  In order to solve the above-mentioned problems, the device according to claim 1 is a member mounting structure in which a fan holder is attached to the front surface side of a housing having a thickness to which a burring cannot be formed. An attachment portion formed, and the attached portion protrudes outward with respect to the attachment surface of the housing to which the fan holder is attached, and a gap is provided between the attachment surface so that the attachment portion can be freely inserted. Forming a bent portion projecting in the thickness direction of the mounting portion from the front end portion of the burring, by bending the side edge of the mounting portion to the back side of the mounting portion, The fan holder and the casing are connected by being inserted into a gap.

  The device according to claim 2 is a member mounting structure in which a mounting member is mounted on the surface side of a mounted member having a mounted portion having a thickness that cannot form a burring. The mounting member includes a mounting portion on which a burring is formed. And the mounting portion is mounted on the back side of the mounted portion.

  The invention according to claim 3 is the member mounting structure according to claim 2, wherein the attached portion protrudes outward with respect to the mounting surface to which the mounting member is mounted, and the mounting portion is interposed between the mounting surface and the mounting surface. The mounting portion is formed so as to have a freely insertable gap.

  The invention according to claim 4 is the member mounting structure according to claim 2 or 3, wherein the side edge of the mounting portion is bent to the back side of the mounting portion, and the thickness of the mounting portion is larger than the tip of the burring. A bent portion protruding in the direction is formed.

  The invention according to claim 5 is the member mounting structure according to any one of claims 2 to 4, wherein the mounting member is a fan holder in which a fan for air-cooling an electronic component is accommodated, and the mounted member Is a housing for accommodating electronic components.

  According to the first aspect of the present invention, the mounted portion is protruded outward with respect to the mounting surface to which the fan holder is mounted, so that the mounting portion can be inserted between the mounting surface. Therefore, the fan holder can be attached to the mounting member by making use of the burring of the fan holder, and the mounting portion where the burring is formed on the back side of the mounting portion by simply inserting the mounting portion into the gap. Can be installed. As a result, when the fan holder is attached to the housing, the thickness of the housing does not depend on whether or not the fan holder can be attached. be able to. Therefore, since it is not necessary to increase the thickness of the housing in order to form the burring as in the prior art, the weight of the electronic device can be reduced and the manufacturing cost can be reduced.

  In addition, since the mounting portion is attached to the mounting portion that protrudes outward with respect to the mounting surface, the mounting portion is attached to the housing as compared to the case where the fan holder is solidly attached to the mounting surface of the housing as in the past. The contact area becomes smaller. Therefore, vibration due to driving of the fan accommodated in the fan holder is not easily transmitted to the housing, so that the earthquake resistance of the electronic device can be improved.

  Also, the side edge of the mounting part is bent to the back side of the mounting part to form a bent part that protrudes in the thickness direction of the mounting part from the tip of the burring, so when inserting the mounting part into the gap, This makes it difficult for the burring to come into contact with the housing, so that it can be easily inserted into the gap of the mounting portion.

  According to the second aspect of the present invention, when attaching the attachment member to the attached member, the attachment portion on which the burring is formed is disposed on the back side of the attachment portion, thereby making use of the burring of the attachment member. The attaching member can be attached to the attached member. Thereby, when attaching the attachment member to the attachment member, the thickness of the attachment member does not depend on whether or not the attachment is possible, so the attachment member can be accurately attached to the attachment member having a thickness that cannot form a burring, and Easy to install. Therefore, since it is not necessary to increase the thickness of the member to be attached in order to form the burring as in the prior art, the weight of the electronic device can be reduced and the manufacturing cost can be reduced.

  According to the third aspect of the present invention, the attached portion is protruded to the outside with respect to the attachment surface to which the attachment member is attached, and the attachment portion is formed so as to be freely inserted between the attachment surface. Therefore, it is possible to mount the mounting portion on which the burring is formed on the back side of the mounted portion with a simple operation by simply inserting the mounting portion into the gap.

  According to the fourth aspect of the present invention, the side edge of the mounting portion is bent to the back side of the mounting portion to form a bent portion that protrudes in the thickness direction of the mounting portion from the tip of the burring. When inserting into the gap, the burring of the mounting portion is less likely to come into contact with the member to be mounted, and insertion into the gap of the mounting portion can be easily performed.

  According to the invention described in claim 5, since the mounting member is a fan holder and the mounted member is a housing, the mounting member can be applied to mounting an air cooling device such as an electronic device. Cost can be reduced.

  Hereinafter, the best mode of a member mounting structure according to the present invention will be described in detail with reference to the drawings. In this embodiment, an example in which a fan holder is attached to a housing used in a DVD player as an example of an electronic device will be described.

As shown in FIG. 1, a fan holder 2 as an attachment member that accommodates a fan that air-cools the electronic component is attached to the surface side of the housing 1 as an attachment member that accommodates the electronic component. The fan holder 2 is fixed via screws 30 so as not to be detached from the housing 1.
<Case configuration>
As shown in FIG. 2, the housing 1 is formed in a substantially box shape, and the housing 1 is formed of a sheet metal having a thickness (for example, a plate thickness of 0.5 mm) where burring cannot be formed. One side surface of the housing 1 is an attachment surface 11 to which the fan holder 2 is attached, and an opening 12 penetrating from the front surface to the back surface of the housing 1 is formed in the approximate center of the attachment surface 11. The opening 12 is formed to be larger than the outer diameter of the fan accommodated in the fan holder 2 so that air generated by the fan can be blown to the electronic components in the housing 1. Among the opening edges of the opening 12, two attached portions 13 for attaching the fan holder 2 are formed at positions facing each other at the opening edge having the same height position from the lower end of the housing 1.

  The mounted portion 13 is formed from a part of the housing 1, is bent so as to protrude to the outside of the housing 1 with respect to the mounting surface 11 to which the fan holder 2 is mounted, and then is attached to the mounting surface 11. Are bent so as to extend substantially in parallel. Further, the mounted portion 13 is formed so as to protrude more than the thickness of the mounting portion 23 of the fan holder 2 with respect to the mounting surface 11. As a result, a gap 14 into which the mounting portion 23 can be inserted is formed between the mounting surface 11 and the mounted portion 13.

  In addition, an attachment hole 15 for inserting a screw 30 when the fan holder 2 is attached is formed at substantially the center of the attached portion 13. Here, since the attached portion 13 is formed by a part of the casing 1, no burring is formed in the attached portion 13.

Further, a stopper 16 is formed below each of the attached portions 13 and is formed by a part of the housing 1 and bent to the inside of the housing 1 with respect to the attachment surface 11. The stopper 16 prevents the attachment portion 23 of the fan holder 2 from moving from the opening 12 into the housing 1 when the attachment portion 23 is inserted into the gap 14 and attached to the attachment portion 13. Therefore, the stopper 16 is preferably formed so as to have an inclined surface that inclines upward from the mounting surface 11 toward the inside of the housing 1.
<Fan holder configuration>
As shown in FIG. 3, the fan holder 2 is formed in a substantially box shape, and the fan holder 2 is formed of a sheet metal having a plate thickness of 0.8 mm. One side surface of the fan holder 2 is an opening 21 for accommodating the fan, and a ventilation port 22 for ventilating the air in the housing 1 is formed on the side surface facing the opening 21. Among the opening edges of the opening 21, two opening portions 23 for mounting to the housing 1 are formed at positions facing each other at the opening edge having the same height position from the lower end of the fan holder 2.

  The attachment portion 23 is formed from a part of the fan holder 2, and is formed by being bent at a substantially right angle along the opening surface of the opening 21 attached to the housing 1.

  In addition, a burring process is performed at approximately the center of the attachment portion 23 for inserting the screw holder 30 into the case 1 when the fan holder 2 is attached to the case 1. The burring portion 24 subjected to the burring process is formed so as to be raised on the back side of the attachment portion 23, and the screw 30 can be inserted from the front side of the attachment portion 23 when attaching to the housing 1. .

Further, the upper edge and the lower edge of the attachment portion 23 are bent toward the back side of the attachment portion 23. The bent portion 25 is formed so as to protrude in the thickness direction of the attachment portion 23 from the tip portion of the burring portion 24. In other words, the bent portion 25 is formed so that the burring portion 24 is hidden when the attachment portion 23 is viewed from above.
<Fan holder mounting method>
As shown in FIGS. 4 and 5, when the fan holder 2 is attached to the casing 1, the opening surface of the fan holder 2 faces the casing 1, and the mounting surface 11 and the attached portion 13 of the casing 1 are attached. A corresponding mounting portion 23 is inserted from above into each of the two gaps 14 formed therebetween. In this insertion process, since the bent portion 25 is formed on the upper edge and the lower edge of the mounting portion 23, the burring portion 24 is unlikely to contact the housing 1 and can be inserted smoothly. In the insertion process, the stopper 16 prevents the attachment portion 23 from entering the inside of the housing 1 from the opening 12. In this way, the attachment portion 23 in which the burring portion 24 is formed is disposed on the back side of the attached portion 13 in which burring cannot be formed.

Next, the mounting hole 15 of the mounted portion 13 of the housing 1 is aligned with the hole of the burring portion 24, and a screw 30 is screwed from the mounting hole 15 to be inserted into the mounting hole 15 and the burring portion 24. At this time, since the mounting portion 23 in which the burring portion 24 is formed is disposed on the back side of the mounted portion 13, the burring portion 24 of the mounting portion 23 regulates the rotation of the screw 30, and the fan holder 2. Is fixed to the housing 1.
<Operational effects in the embodiment>
As described above, when the fan holder 2 is attached to the housing 1 as in the member attachment structure according to the present invention, the attached portion 13 is connected to the attachment surface 11 to which the fan holder 2 is attached. Since the mounting portion 23 is formed so as to be able to be inserted between the mounting surface 11 and the mounting surface 11 so as to protrude outward, the fan holder 2 is attached to the housing 1 by utilizing the burring portion 24 of the fan holder 2. The mounting portion 23 in which the burring portion 24 is formed can be disposed and mounted on the back side of the mounted portion 13 by a simple operation of simply inserting the mounting portion 23 into the gap 14. Therefore, the fan holder 2 can be accurately and easily attached to the casing 1 having a thickness where the burring portion 24 cannot be formed. As a result, when the fan holder 2 is attached to the housing 1, the thickness of the housing 1 does not depend on whether or not the fan holder 2 can be attached. And can be easily attached. Therefore, since it is not necessary to increase the thickness of the housing 1 in order to form the burring portion 24 as in the conventional case, the weight of the electronic device can be reduced and the manufacturing cost can be reduced.

  Moreover, since the attaching part 23 is attached to the to-be-attached part 13 which protruded outside with respect to the attachment surface 11, as the screw 30 is tightened, the attaching part 23 comes into close contact with the to-be-attached part 13, and the housing Move away from 1. Thereby, the area | region where the attaching part 23 contacts the housing | casing 1 becomes small compared with the case where the fan holder 2 is solidly attached to the attachment surface 11 of the housing | casing 1 conventionally. Therefore, vibration due to driving of the fan accommodated in the fan holder 2 is not easily transmitted to the housing 1, so that the earthquake resistance of the electronic device can be improved.

  Since the side edge of the mounting portion 23 is bent to the back side of the mounting portion 23 to form the bent portion 25 that protrudes in the thickness direction of the mounting portion 23 from the front end portion of the burring portion 24, the mounting portion 23 is inserted into the gap 14. In doing so, the burring portion 24 of the attachment portion 23 is less likely to come into contact with the housing 1, and the attachment portion 23 can be easily inserted into the gap 14.

  Further, it can be applied to mounting an air cooling device such as an electronic device, and the weight of the electronic device can be reduced and the manufacturing cost can be reduced.

  In addition, this invention is not limited to the said embodiment. For example, the shape of the opening formed in the housing can be freely changed as long as the air generated by the fan can be blown into the housing without a shortage. In addition, the mounted portion is formed integrally with the housing, and the mounting portion is formed integrally with the fan holder, but either one may be formed by a separate member, or both may be formed by separate members. May be. Moreover, although the bending part is integrally formed with the attaching part, you may make it provide a separate member in the upper side edge and lower side edge of an attaching part. In addition, the present invention can be freely changed and improved without departing from the gist of the invention.

It is a schematic perspective view explaining the member attachment structure concerning this invention. It is a schematic perspective view of the housing | casing in the member attachment structure which concerns on this invention. It is a schematic perspective view of the fan holder in the member mounting structure according to the present invention. It is a principal part perspective view explaining the member attachment structure concerning this invention. It is a principal part side view explaining the member attachment structure concerning this invention.

Explanation of symbols

1 Housing (attached member)
2 Fan holder (mounting member)
13 Mounted portion 14 Gap 23 Mounting portion 24 Burring portion (burring)
25 Folding part

Claims (5)

In the member mounting structure for mounting the fan holder on the surface side of the housing having the mounted portion with a thickness that cannot be burring,
The fan holder includes a mounting portion in which a burring is formed,
The mounting portion is protruded outward with respect to the mounting surface of the housing to which the fan holder is mounted, and the mounting portion is formed between the mounting surface so as to be freely inserted.
Bending the side edge of the mounting portion to the back side of the mounting portion to form a bent portion that protrudes in the thickness direction of the mounting portion from the tip of the burring;
A member mounting structure, wherein the mounting portion is inserted into the gap to connect the fan holder and the housing. In the member mounting structure for mounting the mounting member on the surface side of the mounted member having a mounted portion with a thickness that cannot be formed burring,
The mounting member includes a mounting portion in which a burring is formed,
A member mounting structure, wherein the mounting portion is mounted on the back side of the mounted portion.   The mounting portion is formed so as to protrude outward with respect to a mounting surface to which the mounting member is mounted, so that a gap in which the mounting portion can be inserted is formed between the mounting portion and the mounting surface. 2. The member mounting structure according to 2.   The side edge of the said attachment part is bend | folded to the back side of the said attachment part, and the bending part which protrudes in the thickness direction of the said attachment part rather than the front-end | tip part of the said burring was formed. The member mounting structure.   The said attachment member is a fan holder in which the fan which air-cools an electronic component is accommodated, The said to-be-attached member is a housing | casing which accommodates an electronic component, The Claim 1 characterized by the above-mentioned. The member mounting structure.

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