JP2003031981A - Vent hole structure and housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To resolve the problem of a general-purpose housing not being readily realized in a conventional method, since a vent hole part can not be shared in natural air cooling and forced air cooling. SOLUTION: A blocking plate 12 which fits an opening part is incorporated in a vent hole part 11 having a slit-like opening part with a crank-like cross section.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation hole structure and a housing, and more particularly, to an electronic device having various mounting states by incorporating an internal mounting component such as an external interface and an extension module in a main body having a core portion. The present invention relates to a ventilation hole structure for use in, and a versatile housing having the ventilation hole structure.

[0002]

2. Description of the Related Art FIG. 15 is a perspective view showing a conventional natural air-cooled housing.

The casing is composed of an upper casing 101 and a lower casing 102 formed of a resin molded product.

In order to improve the cooling efficiency of the electronic circuit board and the internal mounting parts of the core part mounted in the housing, the upper housing 1
01 and the lower housing 102 each have a plurality of ventilation holes 103 formed therein.

FIG. 16 is a perspective view showing a conventional forced air cooling case.

The casing is composed of an upper casing 104 and a lower casing 105, which are resin molded products, as in FIG. 15, in which a plurality of ventilation holes 103 are formed and a fan mounting portion 106 is formed. .

FIG. 17 is a sectional view of a conventional ventilation hole portion 103,
FIG. 18 is a cross-sectional view of the conventional ventilation hole portion 103 taken along line XX.

Ventilation holes 103 are formed at the ends of the upper casings 101 and 104 and the lower casings 102 and 105, respectively. The upper casings 101 and 104 and the lower casings 102 and 105 are combined to form a casing. Sometimes arranged vertically symmetrically.

A large number of slit-shaped ventilation holes 107 are formed in the ventilation hole portion 103 as shown in FIGS. As shown in FIG. 18, the ventilation hole 107 has a crank-shaped cross section to prevent foreign matter from entering.

FIG. 19 is a view showing the structure of a conventional fan mounting portion 106, which is seen from the inside of the housing.

The fan 108 is a dedicated finger guard 1
09 or the same shape as a finger guard is formed of a resin housing, and is mounted on the fan mounting plate 110 together by the fan mounting screws 111.

It should be noted that the fan mounting portion 106 is configured to have a minimum space in accordance with the case where a large number of internal mounting components are required and the maximum space is required.

Further, as shown in FIG. 16, the ventilation holes 103, which are the air intake holes and are similar to those for natural air cooling, are arranged uniquely to the apparatus in order to establish a flow path that matches the internal mounting components.

[0014]

In the case of constructing an electronic device, when the internal mounting parts are diversified, the cooling structure is adapted to the maximum structure of the internal mounting parts. Therefore, the forced air cooling case should be used. become.

Therefore, depending on the structure of the internal mounting parts,
Even if the natural air cooling was originally satisfactory, forced air cooling was performed, resulting in excessive cooling capacity, which was not economical.

Further, even in the case of forced air cooling, when the internal mounting parts are diverse, the optimum flow path corresponding to the internal mounting parts cannot be established, and this may be compensated for by improving the fan performance.

Therefore, there has been a demand for a housing that can be used for general purposes, even for various configurations of internally mounted components.

However, since the conventional natural air-cooled casing and the conventional forced air-cooled casing have different ventilation holes, particularly exhaust hole structures, the components constituting the casing, that is, the ventilation holes cannot be shared, and forced air cooling is not possible. However, since the optimum flow path differs depending on the mounting state of the internal mounting components, there is a problem that separate casings each having a unique ventilation hole are used.

[0019]

In order to solve the above-mentioned problems, the present invention has a ventilation hole structure in which a ventilation hole portion having a slit-shaped opening having a crank-shaped cross section is fitted into the ventilation hole portion. By incorporating a closing plate, the opening is closed so that it can be opened and closed.

In addition, the ventilation hole structure is formed by incorporating an additional plate into the ventilation hole portion having a slit-like large opening, which is inserted into the opening portion to form a ventilation hole having a crank-shaped cross section. The opening state is made variable by closing a part of the portion.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing a first embodiment of the present invention, which is a ventilation hole portion 10 shown in FIGS.
3 is a view corresponding to No. 3 and in which the so-called ventilation holes of the lower housing are viewed inside the housing.

The first embodiment is a ventilation hole portion 1 of a resin molded product.
1 and a closing plate 12 made of a resin molded product.

FIG. 2 is a view showing the structure of the first embodiment,
The state where the closing plate 12 is fitted into the ventilation hole 11 from above is shown.

The ventilation hole portion 11 has a plurality of slit-shaped ventilation holes (openings) 13 as in the conventional case.
Has a crank-shaped cross section to prevent foreign matter from entering.

The recesses 1 are formed inside both ends of the plurality of openings 13.
4 are formed, and rails 15 are formed on both outer sides of both ends of the opening 13.

The closing plate 12 has a plurality of columns 16 that fit into the crank-shaped openings 13 of the ventilation holes 11, and the rails 15 of the ventilation holes 11 are inserted outside the ends of the columns 16. The guide portion 17 is formed, and the stopper 18 is formed on the upper portion.

FIG. 3 is a sectional view of the first embodiment, showing a state in which the ventilation holes 11 provided in the upper casing and the lower casing are connected so as to face each other, and FIG. FIG.

As shown in FIG. 3, protrusions 19 that engage with the recesses 14 shown in FIG. 2 provided in the ventilation holes 11 are provided outside the both ends of the closing plate 12.

A guide portion 17 is attached to the rail 15 of the ventilation hole portion 11.
When the closing plate 12 is inserted into the ventilation hole 11 from above, the closing plate 1 is closed in the recess 14 of the ventilation hole 11.
The projections 2 of 2 fall and are engaged, and the ventilation hole 11 and the closing plate 12 are in a fitted state.

In this state, the ventilation holes 1 of the upper and lower casings
When 1 are coupled so as to face each other in a vertically symmetrical manner, the stoppers 18 abut against each other and are fixed, so that the fitted state of the ventilation hole portion 11 and the closing plate 12 is completely fixed.

At this time, the crank-shaped opening 13 of the ventilation hole 11 has a pillar 16 of the closing plate 12 as shown in FIG.
Due to this, a part of it is blocked, and it is in a closed state, so that air does not flow.

As described above, when the closing plate 12 is not installed in the ventilation hole 11, the opening 13 is opened in a crank shape, and when the closing plate 12 is installed, the opening 13 is closed. It can be opened and closed by the closing plate 12.

Therefore, if the ventilation hole portion 11 is used as it is, the cross section of the opening portion 13 has a crank-shaped intake / exhaust hole for natural air cooling or an intake hole for forced air cooling.

Further, when the opening 13 is closed by attaching the closing plate 13, it constitutes a part of the housing having no ventilation hole.

As described above, according to the first embodiment, two structures of opening and closing the opening 13 can be realized depending on whether or not the closing plate 12 is incorporated in the ventilation hole 11. The ventilation hole 11 that is a component can be shared.

Therefore, it is possible to realize a versatile housing, and it is expected that the economy will be improved.

Further, as a mode of use in the same electronic device using the housing of the first embodiment, in the case of a tabletop flat installation, the device is a natural air cooling mode in which the opening 13 is used as it is without the closing plate 12. Since it is excellent as a natural air-cooled form in the case of vertical installation, it is sufficient to place excellent internal mounted components that are not restricted by operating temperature conditions so that they are located at the top of vertical installation. Since foreign matter easily enters when 13 is moved, it is possible to secure safety by attaching the closing plate 12 to prevent foreign matter from entering.

Further, in the case where the table is placed flatly on the table, the surface of the housing ventilation hole 11 adjacent to the slit-shaped ventilation holes, that is, FIG.
When it is possible to wrap around the upper surface or the lower surface as described above, the opening 13 can be left on the side surface when vertically installed.

FIG. 5 is a perspective view showing the second embodiment of the present invention, and is a view of the ventilation holes of the lower housing as seen from the inside of the housing, as in FIG.

The second embodiment is composed of an exhaust hole portion 21 which is a resin molded product and an additional plate 22.

FIG. 6 is a diagram showing the structure of the second embodiment.
The state where the additional plate 22 is fitted into the exhaust hole portion 21 from above is shown.

The exhaust hole portion 21 has a plurality of slit-shaped openings 23, and the openings 23 are wide enough to prevent fingers from entering.

As in the first embodiment, the plurality of openings 2 are formed.
The recesses 24 are formed inside both ends of the opening 3 and the opening 2
Rails 25 are formed on both outer sides of both ends of the rail 3.

The additional plate 22 has a plurality of columns 26 which are inserted into the opening 23 of the exhaust hole 21 and form ventilation holes having a crank-shaped cross section.

Further, similarly to the first embodiment, guide portions 27 to be inserted into the rails 25 of the exhaust hole portion 21 are formed outside both ends of the plurality of columns 26, and stoppers 28 are formed on the upper portions. There is.

FIG. 7 is a sectional view of the second embodiment, showing a state in which the exhaust holes 21 incorporating the additional plates 22 provided in the upper casing and the lower casing are joined so as to face each other. , FIG. 8 is a sectional view taken along line BB.

As shown in FIG. 7, protrusions 29 that engage with the recesses 24 shown in FIG. 6 provided in the exhaust hole portion 21 are provided outside both ends of the additional plate 22.

A guide portion 27 is attached to the rail 25 of the exhaust hole portion 21.
And the additional plate 22 is inserted into the exhaust hole portion 21 from above, the additional plate 2 is inserted into the recess 24 of the exhaust hole portion 21.
The protrusion 29 of No. 2 falls and engages, and the exhaust hole portion 21 and the additional plate 22 are fitted.

In this state, the exhaust holes 2 of the upper and lower casings
When 1s are coupled so as to face each other vertically, the stoppers 28 abut against each other and are fixed, so that the fitted state of the exhaust hole portion 21 and the additional plate 22 is completely fixed.

At this time, the large opening 23 of the exhaust hole 21 is partially blocked by the two types of columns 26 of the additional plate 21 as shown in FIG. 8, and the ventilation hole having a crank-shaped cross section. To form. One of the two types of columns 26 has an L-shaped cross section, and the other has a crank-shaped cross section.

As described above, when the additional plate 22 is not incorporated in the exhaust hole portion 21, the opening 23 is wide open, and when the additional plate 22 is incorporated, the opening 23 becomes a ventilation hole having a crank-shaped cross section. The opening state can be made variable by the additional plate 22.

Therefore, if the exhaust hole portion 21 is used as it is, a structure of a forced air cooling exhaust hole having a large opening ratio is obtained, and when the additional plate 22 is attached so as to partially block the opening portion 23, it has a crank shape in cross section. Becomes the ventilation hole of
It has a structure of intake and exhaust holes for natural air cooling.

As described above, according to the second embodiment, the opening state of the opening 23 can be set in two ways depending on whether or not the additional plate 22 is incorporated in the exhaust hole 21. The exhaust hole portion 21, which is a main component, can be shared.

Therefore, it is possible to realize a versatile housing, and it is expected that the economy will be improved.

Further, in the case of natural air cooling as a form of use in the same electronic device using the case of the second embodiment, an additional plate 22 is attached in the case of tabletop flat installation,
Although the safety of preventing foreign matter from entering is ensured, in the case of vertical installation, if the opening 23 is installed at the bottom, it is not necessary to consider the entry of foreign matter into that portion, so the additional plate 2
It is possible to remove 2 and use the wide opening 23 to enlarge the intake hole.

FIG. 9 is a perspective view showing a third embodiment of the present invention, and FIG. 10 is a perspective view showing an example in which the mounting position of the fan module is changed, both of which are ventilation holes of the second embodiment. It is the figure seen from the inside of the case with a structure.

The fan module has a U-shaped bracket 3
1, a fan 32 is attached by screwing or the like.

Lower housing 33 for mounting the fan module
In the portion corresponding to the above-mentioned ventilation hole structure, a first guide groove 34 that is aligned with the U-shape of the bracket 31 is formed.
The two outer ends forming the guide groove 34 form a wall 35 extending along the two side surfaces of the bracket 31.

Further, a second guide groove 36 matching the U-shape of the bracket 31 is formed at a position corresponding to the depth of the bracket 31 from the first guide groove 34.

A first guide groove 34, a wall 35 and a second guide groove 36 are formed in the upper housing 37 as in the lower housing 33.

Explaining the mounting of the fan module, as shown in FIG. 9, the bracket 31 to which the fan 32 is fixed is engaged with the first guide groove 34, and the upper casing 37 and the lower casing 33 are moved as shown by arrows. When fitted, the bracket 31 is also engaged with and guided by the first guide groove of the upper casing 37,
The fan module is mounted.

The exhaust side of the fan 32 is partitioned from the other space by the U-shaped side surface of the bracket 31 or the wall 35,
An efficient exhaust side space can be formed.

FIG. 10 shows a fan module mounted in the second guide groove 36. The exhaust side of the fan 32 is partitioned from the other space by the U-shaped side surface of the bracket 31 and the wall 35 to form the exhaust side space. Form.

FIG. 9 shows an example of a structure that makes the fan mounting space compact, and FIG. 10 shows an example of a structure that expands the fan mounting space to reduce the loss of the fan 32 and increases the cooling efficiency. .

If only the mounting structure shown in FIG. 9 is assumed, the second guide groove 36 may not be provided.

Further, the fan 32 and the bracket 31 are replaced by two.
By using fan modules arranged in series, it is possible to select forced air cooling with excellent static pressure characteristics.

As described above, according to the third embodiment, the exhaust side space can be selected by changing the mounting position of the bracket 31 to which the fan 32 is attached, and the fan mounting structure portion constituting the housing can be formed. Can be shared.

Therefore, it becomes possible to realize a versatile housing, and it is expected that the economy will be improved.

FIG. 11 is a view showing a fourth embodiment of the present invention and shows a versatile housing.

The general-purpose housing is composed of a resin-molded vertically symmetrical upper housing 41 and lower housing 42.
The ventilation hole portion 11 described in the above embodiment is formed.

Further, the exhaust hole portion 21 described in the second embodiment is formed on the back surface, the fan mounting structure portion 43 described in the third embodiment is formed on the corresponding casing portion, and the front surface is formed. Is provided with a front panel 44.

The general-purpose casing thus constructed is used for natural air cooling and forced air cooling by sharing parts such as ventilation holes constituting the casing as described below.

FIG. 12 is a view showing an example in which the fourth embodiment is used as a natural air cooling model. An additional plate 22 is incorporated into the exhaust hole portion 21 of FIG. 11 and the opening portion 23 is made into a ventilation hole having a crank-shaped cross section. The variable ventilation hole 45 is provided, and the printed wiring board 50 is arranged in the housing.

The printed wiring board 50 is naturally air-cooled by the intake and exhaust of the ventilation holes 11 and the variable ventilation holes 45.

13 and 14 are views showing an example in which the fourth embodiment is a forced air cooling model.

FIG. 13 shows an opening / closing ventilation hole portion in which two positions on the side surface of the housing are left as the ventilation hole portions 11 and the other ventilation hole portions 11 have the closing plates 12 of FIG. 46, the exhaust hole portion 21 on the back surface, and the fan module 47 is mounted in the fan mounting structure portion 43 in the first guide groove 35 as shown in FIG. 9 to make the fan mounting space compact and to provide printed wiring in the housing. The plates 51 and 52 are arranged.

In the printed wiring boards 51 and 52, forced air cooling is performed in the flow path C by the intake air at the two places of the ventilation hole 11 and the exhaust air of the exhaust hole 21 and the fan module 47.

FIG. 14 shows an opening / closing ventilation hole portion 46 in which two positions on both sides of the housing are left as the ventilation hole portion 11 and the other ventilation hole portions 11 are covered with the closing plate 12 and the opening portion 13 is closed. The rear surface is the exhaust hole portion 21, and the fan mounting structure portion 43 is mounted with the fan module 47 in the second guide groove 37 as shown in FIG.
The loss of the fan 32 is reduced, and the printed wiring board 5 is housed in the housing.
3, 54, 55 are arranged.

The printed wiring boards 53 to 55 have the ventilation holes 1
The forced air cooling is performed in the flow path D by the intake air at the two locations 1 and the exhaust air from the exhaust hole portion 21 and the fan module 47.

As described above, according to the fourth embodiment, the ventilation hole structure capable of opening and closing the opening of the first embodiment, the ventilation hole structure having a variable opening state of the second embodiment, and the fan of the third embodiment. By sharing the mounting structure and forming it in one case, it is possible to select a natural air-cooled case with a high aperture ratio and a flow path,
It can also function as a forced air cooling case that can change the forced air cooling efficiency depending on the fan mounting space, and can also realize a general-purpose case.

Since various cooling structures can be selected in one housing, an optimum cooling mode can be provided in an electronic device in various mounting states by incorporating an external interface, an extension module, etc. in the main body having the core part. Therefore, improvement in economic efficiency can be expected.

Further, if the variable opening state ventilation holes 45 and the fan mounting structure section 43 are provided at two locations, it becomes possible to select a highly reliable device configuration due to the redundant configuration.

Since various cooling forms are possible,
The module configuration is optimal for user specifications, and the application is not limited to electronic devices in various mounting states, but can also be applied to the field of personal computers and the like in which customization by changing settings and functions by users is performed.

[0084]

As described above, according to the present invention, the main constituent parts of the housing can be shared, and the housing having general versatility can be realized, and it is expected that the economical efficiency is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a diagram showing the structure of the first embodiment.

FIG. 3 is a sectional view of the first embodiment.

FIG. 4 is a sectional view taken along line AA.

FIG. 5 is a perspective view showing a second embodiment of the present invention.

FIG. 6 is a diagram showing a structure of a second embodiment.

FIG. 7 is a sectional view of the second embodiment.

FIG. 8 is a sectional view taken along line BB.

FIG. 9 is a perspective view showing a third embodiment of the present invention.

FIG. 10 is a perspective view in which the mounting position of the fan module is changed.

FIG. 11 is a diagram showing a fourth embodiment of the present invention.

FIG. 12 is a diagram showing a natural air cooling model.

FIG. 13 is a diagram showing a forced air cooling model.

FIG. 14 is a diagram showing another forced air cooling model.

FIG. 15 is a perspective view showing a conventional natural air-cooled housing.

FIG. 16 is a perspective view showing a conventional forced air cooling case.

FIG. 17 is a cross-sectional view of a conventional ventilation hole portion.

FIG. 18 is a cross-sectional view taken along the line XX of the conventional ventilation hole portion.

FIG. 19 is a diagram showing a conventional fan mounting structure.

[Explanation of symbols]

11 ventilation holes 12 blocking plates 13,23 opening 21 Exhaust hole 22 Additional plate 31 bracket 32 fans 34 First guide groove 35 wall 36 Second guide groove 43 Fan mounting structure 45 variable ventilation holes 46 Opening and closing vents

Claims (7)

[Claims] 1. A ventilation plate provided with a slit-shaped opening having a crank-shaped cross section and a closing plate fitted into the opening, which is adapted to close the opening so as to be opened and closed. Characteristic ventilation structure. 2. An exhaust plate provided with a slit-like wide opening, by incorporating an additional plate which is inserted into the opening and forms a ventilation hole having a crank-shaped cross section, one of the openings is formed. A ventilation hole structure characterized by changing the opening state by closing the part. 3. A housing provided with the ventilation hole structure according to claim 1. 4. A first guide groove for engaging a U-shaped bracket having a fan attached to a casing portion corresponding to the ventilation hole structure according to claim 2, and the first guide groove. And a fan mounting structure having a wall extending along a side surface of the bracket. 5. The second guide is provided at a position deeper than the first guide groove.
The casing according to claim 4, wherein the guide groove is provided. 6. A ventilation plate provided with a slit-shaped first opening having a crank-shaped cross section, and a closing plate fitted into the opening to be incorporated into the ventilation opening, so that the opening can be closed and opened. An additional plate having a first ventilation hole structure and a ventilation hole portion having a slit-like large second opening portion, the ventilation hole portion being inserted into the second opening portion to form a ventilation hole having a crank-shaped cross section. A fan is attached to the second ventilation hole structure in which a part of the second opening portion is closed to make the opening state variable, and the housing portion corresponding to the second ventilation hole structure. A casing provided with a first guide groove for engaging a U-shaped bracket and a fan mounting structure having a wall extending along a side surface of the bracket engaged with the first guide groove. body. 7. The second guide is provided at a position deeper than the first guide groove.
7. The housing according to claim 6, wherein said guide groove is provided.