JP2011061505A - Heat radiating structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat radiating structure in which heat generated from a heat generating component such as an HDD (Hard Disk Drive) is efficiently radiated and when exchanging the heat generating component, the heat generating component can be exchanged easily. <P>SOLUTION: The heat radiating structure is for a video apparatus with an HDD 6 incorporated. The video apparatus includes: a video apparatus body 1 in which the HDD 6 is removably installed on a rear surface side of an image display panel 2; a back cover 4 which entirely covers a rear surface of the video apparatus body 1 and in which an upper ventilating hole is provided in an upper part and an opening is formed at a position corresponding to an installation position of the HDD 6; an HDD exchange lid 5 which covers the opening and is provided with an intake ventilating hole; and partition walls (8a, 8b, 12a, 12b) which are extended vertically at respective right-and-left both sides of the HDD 6 when the video apparatus body 1, the back cover 4 and the HDD exchange lid 5 are built up, respectively. An air channel, which reaches from the intake ventilating hole to the upper ventilating hole by the partition walls (8a, 8b, 12a, 12b) and in which the HDD 6 is isolated from the other components, is formed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a heat dissipating structure for video equipment having a heat generating component.

  Conventional heat dissipation structures such as HDD (Hard Disk Drive) built-in heat generating parts, such as video equipment, contain heat generating parts and other parts that generate large amounts of heat in the back cover. After the outside air (cold air) is introduced from the provided ventilation holes to cool the heat-generating parts and other parts that generate a large amount of heat, the air is exhausted from the ventilation holes provided on the top and top of the back cover. It was. There is also a structure in which a convex shape is formed on the back cover to provide a storage space dedicated to heat-generating components and forcibly cooled by a fan.

  However, in the former structure, since the amount of heat generation is large, the air is warmed by the heat generating parts such as other electronic circuit parts until the air reaches the heat generating parts that need the most cooling, and the cooling is most required. When the air reaches the heat-generating component, the temperature of the air becomes high, resulting in a problem that the cooling efficiency is lowered. In the latter structure, the back cover is not flat and a fan must be provided separately.

  As a countermeasure for such a problem, a heat generating component having a large heat generation amount is disposed in an upper portion of a stand column that is a hollow member and provided with a ventilation channel and is formed in an air channel formed by the stand column and the partition plate. Thus, there is a heat dissipation structure that cools a component with a large amount of heat generated by a chimney effect by natural convection (see, for example, Patent Document 1).

  In addition, since heat-generating parts such as HDDs are more likely to fail than other parts, it is required to easily replace the heat-generating parts. For example, when an HDD is accommodated by providing a storage unit with a slide structure in the housing, and the HDD needs to be replaced due to a failure, the HDD can be easily removed by sliding the storage unit forward from the front of the housing. A structure that can be exchanged is disclosed (for example, see Patent Document 2).

JP 2008-40424 A (pages 4-7, FIGS. 3, 7) JP 2002-238008 (first page, FIG. 1)

  In the heat dissipation structure described in Patent Document 1, since the stand column is hollow and provided with ventilation holes, there is a problem that the strength is deteriorated, and since the ventilation holes are provided, the appearance is likely to deteriorate. is there. Further, when a thin and short stand column is required, there is a problem that the opening ratio of the ventilation holes formed in the stand column is small. Furthermore, there is a problem in that it is necessary to open (remove) the back cover when replacing a heat-generating component such as an HDD.

  In the structure described in Patent Document 2, since the HDD is housed in a housing portion having a slide structure, it can be easily replaced. However, there is a problem in that natural convection hardly occurs in the housing portion and heat tends to be accumulated. is there. Further, when the heat is forcibly cooled by a fan, noise and dust problems are caused by the fan, and the cost is increased.

  The present invention has been made to solve these problems, and provides a heat dissipation structure that efficiently dissipates heat generated from a heat generating component such as an HDD and can be easily replaced when the heat generating component is replaced. The purpose is to do.

  In order to solve the above-described problems, a heat dissipation structure according to the present invention is a heat dissipation structure of a video device incorporating a heat-generating component, and the video device is a main body in which a heat-generating component is removably installed on the back side of the display panel. And a back cover that covers the entire back surface of the main body, has an upper ventilation hole at the top, and has an opening at a location corresponding to the installation position of the heat generating component, and a lid that covers the opening and has an intake ventilation hole When the main body, back cover, and lid are each assembled, the heat generating component is provided with a partition wall extending vertically on each of the left and right sides of the heat generating component. An air passage that is isolated from the components is formed.

  According to the present invention, the entire back surface of the main body is covered, an upper ventilation hole is provided in the upper part, an opening is formed at a position corresponding to the installation position of the heat generating component, and an intake ventilation hole is provided to cover the opening. When the lid, the main body, the back cover, and each of the lids are assembled, the heating component includes a partition extending in the vertical direction on each of the left and right sides of the heating component and extending from the intake ventilation hole to the upper ventilation hole by the partition. However, since the air path isolated from the other parts is formed, the heat generated from the heat generating parts such as the HDD can be efficiently radiated and can be easily replaced when the heat generating parts are replaced.

It is the external appearance perspective view which looked at the whole video equipment by the embodiment of the present invention from diagonally forward. It is the external appearance perspective view which looked at the whole video equipment by the embodiment of the present invention from the slanting back. It is the external view which looked at the whole video equipment by embodiment of this invention from back. 1 is an exploded three-dimensional view of an entire video device according to an embodiment of the present invention as viewed obliquely from below. It is the exploded three-dimensional view which looked at the whole video equipment by the embodiment of the present invention from the slanting front. It is a figure which shows the longitudinal cross-section of the center of the video equipment by embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an external perspective view of the entire video apparatus according to the embodiment of the present invention as viewed from diagonally forward, and FIG. 2 is an external perspective view of the entire video apparatus as viewed from diagonally rear. As shown in FIGS. 1 and 2, a video equipment main body 1 (main body portion) having an image display panel 2 is installed on a stand 3, and the back surface of the image display panel 2 is covered with a back cover 4. Further, an HDD replacement lid 5 (lid) for replacing the HDD (heat generating component) is provided on a part of the back cover 4.

  FIG. 3 is an external view of the entire video apparatus according to the embodiment of the present invention as viewed from the rear, and FIG. 4 is an exploded view of the entire video apparatus as viewed obliquely from below. FIG. 5 is an exploded three-dimensional view of the entire video equipment as viewed obliquely from the front.

  FIG. 3 shows a state in which the HDD replacement lid 5 is removed from the back cover 4, and the HDD 6 is detachably installed on the back side of the image display panel 2. The back cover 4 covers the entire back surface of the video equipment main body 1, has an upper ventilation hole at the top, and forms an opening at a location corresponding to the installation position of the HDD 6. The HDD replacement lid 5 is provided with ventilation holes (intake ventilation holes) so as to cover the opening of the back cover 4. In the present embodiment, each ventilation hole is formed by arranging a large number of linear holes of equal length in parallel as shown in the figure.

  As shown in FIGS. 3 and 4, the lower portion near the center of the back cover 4 has a concave shape 12 in which the opening is opened in order to place the HDD 6. Standing walls 12a and 12b (first partition walls) are formed in parallel on both sides of the concave shape 12 in the vertical direction (vertical direction when installing the video equipment), and ventilation is provided in the left and right directions above the standing walls 12a and 12b. A possible upper wall 12c (wall) is formed (that is, provided with ventilation holes). Screw bosses 11a and 11c are formed on the standing wall 12a, and screw bosses 11b and 11d are formed on the standing wall 12b. Furthermore, holes 4a to 4c are formed in the upper part of the concave shape 12, and holes 4d to 4f are formed in the lower part, respectively.

  The HDD replacement lid 5 is formed with hook ribs 5a to 5c and snap fits 5d to 5f. The hook ribs 5a to 5c are fitted into the holes 4a to 4c, respectively, and the snap fits 5d to 5f are formed into the holes 4d. The HDD replacement lid 5 is positioned with respect to the back cover 4 by being fitted to ˜4f. After the positioning, the HDD replacement lid 5 is fixed to the back cover 4 by screwing the screw fastening portions 10 a to 10 d and the screw bosses 11 a to 11 d formed on the HDD replacement lid 5. The HDD replacement lid 5 has a surface (first surface) facing the opening of the back cover 4 and a surface (second surface) perpendicular to the first surface on the lower side of the first surface. The vent hole is formed in at least the second surface (both the first and second surfaces in the present embodiment).

  The back side (outside) surface of the HDD replacement lid 5 may be flush with the back side (outside) surface of the back cover 4. In other words, the surface facing the opening of the HDD replacement lid 5 may be flush with the rear surface of the back cover 4. By using the same surface, the entire back surface of the video equipment main body 1 becomes flat, and the video equipment main body 1 can be installed on a wall.

  The HDD 6 is held by an HDD holding sheet metal 7. The HDD holding sheet metal 7 is screwed between the screw fastening portions 9a to 9d and the substrate holding structural sheet metal 8 after being hooked on the cut and raised parts 8c and 8d formed on the substrate holding structural sheet metal 8 included in the video equipment main body 1. It is fixed by stopping. At this time, a space is secured between the HDD 6 and the substrate holding structural sheet metal 8 and between the HDD 6 and the back cover 4 at a predetermined interval.

  As shown in FIG. 4, standing walls 8 a and 8 b (second partition walls) are connected to the center upper part of the back surface of the video equipment main body 1 so as to be continuous with the standing walls 12 a and 12 b (first partition walls). Is formed by bending a structural sheet metal 8 (sheet metal) for holding a substrate. Moreover, burring holes 8e and 8f are formed on the back cover 4 side of the standing walls 8a and 8b, respectively.

  As shown in FIG. 5, on the upper side of the back cover 4, an air passage rib 4i is formed so as to be continuous with the standing wall 12a, and an air passage rib 4j is formed so as to be continuous with the standing wall 12b. . When the back cover 4 is mounted, the screw fastening portions 4g, 4h and the burring holes 8e, 8f are fixed by screws, but at this time, the airway ribs 4i, 4j and the standing walls 8a, 8b are in contact with each other. It is held in the state.

  Here, the arrangement and replacement method of the HDD will be described. As shown in FIGS. 3 and 4, the HDD 6 is arranged near the stand 3 on the lower side from the center of the video equipment body 1. The arrangement position is a stable position that is least susceptible to external impact. Further, it is also a position where it is difficult to be affected by other heat-generating components other than the HDD 6. Further, since the HDD 6 is arranged at the lower part of the video equipment main body 1, the hot air generated by the heat generated by the HDD 6 is external air (cold air) introduced from the vent hole provided in the HDD replacement lid 5 at the lower part of the video equipment main body 1. As a result, it becomes easier to discharge from the vent provided in the upper part of the video equipment body 1 (the cooling efficiency of the HDD 6 is improved).

  The HDD 6 is replaced by removing the HDD replacement lid 5 from the screw fastening portions 10a to 10d, removing the snap fits 5d to 5f from the holes 4d to 4f, and removing the hook ribs 5a to 5c from the holes 4a to 4c. Then, the HDD replacement lid 5 is removed from the back cover 4. Thereafter, the screws are removed from the screw fastening portions 9a to 9d, and the HDD holding metal plate 7 is cut and raised to be removed from the 8c and 8d, thereby removing the HDD 6 held by the HDD holding metal plate 7 from the substrate holding structural metal plate 8. In this way, the HDD 6 can be easily replaced with the back cover 4 attached to the video equipment main body 1.

  Next, the heat dissipation structure of the HDD 6 will be described. As shown in FIGS. 4 and 5, recessed walls 12 a and 12 b (first partition walls) provided on the back cover 4 are arranged on both sides of the HDD 6 to form an air passage. Further, on the upper side of the video equipment main body 1, the back cover 8 is in contact with the standing walls 8a and 8b (second partition walls) formed by bending the substrate holding structural sheet metal 8 and the standing walls 8a and 8b. An air passage is formed by the air passage ribs 4i and 4j (ribs) formed integrally with the air passage. The standing walls 8a and 8b are fixed by screwing and fixing the screw fastening portions 4g and 4h formed on the back cover 4 and the burring holes 8e and 8f formed on the standing walls 8a and 8b. The bending strength of 8b is maintained so that the air path does not collapse. The upper wall 12c is provided with ventilation holes so as not to hinder the flow of air. With the above configuration, when each of the video equipment main body 1, the back cover 4, and the HDD replacement lid 5 is assembled, partition walls extending in the vertical direction are formed on the left and right sides of the HDD 6, and the HDD replacement is performed by the partition walls. An air path is formed in which the HDD 6 is isolated from other components from the ventilation hole (intake ventilation hole) of the lid 5 to the upper ventilation hole of the back cover 4.

  FIG. 6 is a view showing a longitudinal section at the center of the video equipment main body 1 according to the embodiment of the present invention. The arrows in the figure indicate the air flow (natural convection). The illustration of the stand 3 is omitted. As shown in FIG. 6, ventilation holes are provided on the back surface (first surface) side and the bottom surface (second surface) side of the HDD replacement lid 5, and outside air (cold air) taken in from the ventilation holes is provided. ) Cools the HDD 6 between the HDD 6 and the back cover 4 and between the HDD 6 and the substrate holding structural sheet metal 8. The air (hot air) after cooling the HDD 6 passes through the ventilation holes provided in the upper wall 12c, and is formed by the standing walls 8a and 8b (FIG. 4) and the airway ribs 4i and 4j (FIG. 5). It is discharged from the upper ventilation hole of the back cover 4 along the air path (chimney effect by natural convection). As described above, since the air flow (natural convection) is generated from the lower part to the upper part along the air path in the video equipment body 1, the HDD 6 can be cooled even when the video equipment body 1 is installed on the wall. It becomes possible.

  From the above, since an air passage is formed in the video equipment main body 1 and the HDD 6 (heat generating component) is installed in the air passage, heat generated from the HDD 6 can be efficiently dissipated. Further, since the HDD 6 can be replaced by removing the HDD replacement lid 5, the HDD 6 can be easily replaced without removing the back cover 4.

  1 video equipment body, 2 image display panel, 3 stand, 4 back cover, 4a to 4 holes, 4g, 4h screw fastening part, 4i, 4j air passage rib, 5 HDD replacement lid, 5a to 5c hook rib, 5d -5f snap fit, 6 HDD, 7 HDD holding sheet metal, 8 substrate holding structural sheet metal, 8a, 8b standing wall, 8c, 8d cut and raised, 8e, 8f burring hole, 9a-9d screw fastening site, 10a-10d screw fastening Site, 11a-11d Screw boss, 12 concave shape, 12a, 12b Standing wall, 12c Upper wall.

Claims (8)

A heat dissipation structure for video equipment with built-in heat-generating parts,
The video equipment is
A main body in which the heat generating component is detachably attached to the back side of the display panel;
A back cover that covers the entire back surface of the main body, has an upper ventilation hole at the top, and has an opening formed at a location corresponding to the installation position of the heat generating component;
A lid that covers the opening and has an intake vent hole;
When assembling each of the main body, the back cover, and the lid, a partition wall that extends in the vertical direction on each of the left and right sides of the heat generating component;
With
A heat dissipation structure, wherein the partition wall forms an air passage from the intake vent hole to the upper vent hole in which the heat generating component is isolated from other components. The video equipment further comprises a stand for installing the video equipment,
2. The heat dissipation structure according to claim 1, wherein the heat generating component is disposed on a lower side from a center of the main body portion and in the vicinity of the stand. The partition is
A first partition provided on the back cover;
A second partition wall provided in the main body so as to be continuous with the first partition wall;
The heat dissipation structure according to claim 1, comprising:   The heat dissipation structure according to claim 3, wherein the second partition wall is formed by bending a sheet metal installed on the main body.   The heat dissipation structure according to claim 3, wherein the back cover is provided with ribs so as to be in contact with the second partition walls.   The heat dissipation structure according to claim 3, wherein the back cover is provided with an air permeable wall that connects the first partition wall in the left-right direction.   The lid has an L shape including a first surface facing the opening and a second surface perpendicular to the first surface at a lower side of the first surface, and at least the second surface. The heat dissipation structure according to claim 1, wherein the ventilation holes are formed on the surface of the heat dissipation structure.   8. The heat dissipation structure according to claim 1, wherein a surface of the lid facing the opening is flush with a back surface of the back cover.

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