JP4829192B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device having a heat dissipation structure.

  An electronic apparatus such as a portable computer includes, for example, a heat radiation fin and a cooling fan for cooling the CPU. The cooling fan sucks dust in the casing together with air, and discharges the dust toward the radiation fins. Therefore, dust accumulates on the surface of the heat radiation fin facing the cooling fan. When dust accumulates on the heat radiating fins, the heat radiating efficiency of the heat radiating fins is lowered, and the performance of the CPU is lowered.

Patent Document 1 discloses an electronic device including a dust collecting member between a discharge port of a cooling fan and a heat radiating fin. An opening is formed in the outer wall of the electronic device. The dust collecting member is detachably attached to the opening and is disposed between the discharge port of the cooling fan and the radiation fin.
JP 2007-189183 A

  Providing specialized parts for dust removal such as the dust collecting member may complicate the structure of the electronic device and reduce the mounting density in the housing.

  An object of the present invention is to obtain an electronic device capable of improving the mounting density.

Electronic device according to one embodiment of the present invention comprises a housing in which an opening portion is provided to be covered by the component which is detachably attached, a heat radiation fin accommodated in said housing, the wind up Symbol radiating fins a cooling fan for sending, has a portion facing the upper Symbol opening comprises and a film member covering at least one at least part of the space between the cooling fan and the heat radiation fin.

  According to the present invention, it is possible to improve the mounting density of electronic devices.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings applied to a portable computer. 1 to 10 disclose a portable computer 1 as an electronic apparatus according to a first embodiment of the present invention. As shown in FIG. 1, the portable computer 1 includes a main body 2 and a display unit 3.

  The main body 2 has a housing 4 formed in a box shape. The housing 4 has an upper wall 4a, a peripheral wall 4b, and a bottom wall 4c. The housing 4 includes a housing cover 5 including an upper wall 4a and a housing base 6 including a bottom wall 4c. The housing cover 5 is detachably combined with the housing base 6 from above, and forms a housing space between the housing base 6 and the housing cover 6.

  As shown in FIG. 1, the portable computer 1 includes a keyboard 7 and a keyboard holder 8. A keyboard placement portion 9 on which the keyboard 7 is placed is provided on the upper wall 4a. The keyboard holder 8 is detachably attached to the upper wall 4a. The keyboard holder 8 presses one end of the keyboard 7 placed on the keyboard placement unit 9 from above, and fixes the keyboard 7 to the keyboard placement unit 9. A speaker 10 is mounted below the keyboard holder 8.

  The display unit 3 includes a display housing 12 and a display device 13 accommodated in the display housing 12. The display device 13 has a display screen 13a. The display screen 13 a is exposed to the outside of the display housing 12 through the opening 12 a on the front surface of the display housing 12.

  The display unit 3 is supported on the rear end portion of the housing 4 via a pair of hinge portions 14a and 14b. Therefore, the display unit 3 is rotatable between a closed position where the display unit 3 is tilted so as to cover the upper wall 4a from above and an open position where the display unit 3 stands so as to expose the upper wall 4a.

  FIG. 2 shows the inside of the housing 4. As shown in FIG. 2, a circuit board 16 is accommodated in the housing 4. A heating element 17 is mounted on the circuit board 16. An example of the heating element 17 is a CPU. The heating element 17 is not limited to the CPU, and various parts such as a graphic chip, North Bridge (registered trademark), or a memory that are desired to be cooled when used are widely applicable.

  As shown in FIG. 2, the portable computer 1 includes a heat dissipation unit 18 that promotes cooling of the heating element 17, for example. FIG. 3 shows the heat dissipating unit 18 in a partially exploded manner. As shown in FIG. 3, the heat dissipation unit 18 includes a cooling fan 21, a heat dissipation fin 22, a heat receiving member 23, and a heat transfer member 24.

  As shown in FIG. 3, an exhaust hole 25 is opened in a part of the peripheral wall 4 b of the housing 4, for example, the rear wall 4 ba. The cooling fan 21 is accommodated in the housing 4 so as to face the exhaust hole 25. The cooling fan 21 has a fan case 26 and an impeller 27 that is rotationally driven in the fan case 26. The fan case 26 has an intake port 26 a that opens into the housing 4 and a discharge port 26 b that faces the exhaust hole 25 of the housing 4. The cooling fan 21 takes in the air in the housing 4 into the inside of the fan case 26 through the intake port 26 a and discharges the taken-in air from the discharge port 26 b toward the exhaust hole 25.

  The heat radiating fins 22 are accommodated in the housing 4 and are disposed between the discharge ports 26 b of the cooling fan 21 and the exhaust holes 25 of the housing 4. That is, the cooling fan 21 discharges air toward the radiation fins 22, thereby cooling the radiation fins 22. The heat radiating fins 22 are formed by assembling a plurality of fin pieces 28 each formed in a plate shape. The plate surface of each fin piece 28 is along the flow direction of the air discharged from the cooling fan 21. The air discharged from the cooling fan 21 takes heat from the heat radiating fins 22 in the process of passing through the heat radiating fins 22 and is exhausted from the exhaust holes 25 of the housing 4 to the outside of the housing 4.

  The heat receiving member 23 is made of a material having high thermal conductivity such as metal, and is disposed so as to face the heating element 17. The heat receiving member 23 is thermally connected to the heating element 17 via a heat transfer material such as heat transfer grease, for example, and receives heat from the heating element 17. The heat transfer member 24 is provided between the heat receiving member 23 and the heat radiating fins 22 and transfers the heat received by the heat receiving member 23 to the heat radiating fins 22. An example of the heat transfer member 24 is a heat pipe.

  As shown in FIG. 6, the cooling fan 21 is disposed with a space S between the cooling fins 22. An example of the space S has such a size that the tip of the cleaning article 29 such as a small vacuum cleaner or tweezers can be inserted.

  The portable computer 1 has a duct structure 30 provided between the cooling fan 21 and the heat radiating fins 22. The duct structure 30 guides the air discharged from the cooling fan 21 toward the heat radiating fins 22. The duct structure 30 according to the present embodiment includes first and second film members 31 and 32, an elastic member 33, and a rib 34.

  As shown in FIGS. 2 and 6, the first film member 31 extends along the direction from the cooling fan 21 toward the radiating fin 22 and covers the space between the cooling fan 21 and the radiating fin 22 from one side. ing. Specifically, the first film member 31 is provided from the upper surface 22a of the heat radiating fin 22 to the upper surface 21a of the cooling fan 21, and covers the entire space S above. The first film member 31 covers, for example, all the space S along the longitudinal direction of the radiating fins 22.

  The first film member 31 has flexibility and is cantilevered in the housing 4. Specifically, the first film member 31 has a first end portion 31 a that faces the upper surface 22 a of the radiating fin 22, and a second end portion 31 b that faces the upper surface 21 a of the cooling fan 21. The first end portion 31 a is a so-called fixed end, and is fixed to the upper surface 22 a of the radiating fin 22. The second end portion 31 b is a so-called free end, and is not fixed to the upper surface 21 a of the cooling fan 21.

  The first end 31a is fixed to the heat radiating fin 22 by, for example, an adhesive or a double-sided adhesive tape. In addition, the fixing method of this 1st edge part 31a is not limited above, A various fixing method is employable suitably. Instead of the above configuration, the first end 31a is a free end, and the second end 31b is fixed to the upper surface 21a of the cooling fan 21 to support the first film member 31 in a cantilever manner. Also good.

  Here, “covering the space” in the present invention includes covering a part of the space in addition to covering the entire space. In the present embodiment, the first film member 31 reaches the upper surface 21 a of the cooling fan 21 and covers the entire space S. The first film member 31 does not necessarily have to cover the entire space S. The first film member 31 may cover only a part of the space S from one side. As an example, the first film member 31 may not reach the upper surface 21 a of the cooling fan 21.

  The first film member 31 is deformable between a first posture that covers the space S and a second posture that opens the space S into the housing 4. In the present embodiment, the first film member 31 has a first posture (see FIG. 6) in which the second end 31b faces the upper surface 21a of the cooling fan 21 and closes the space S above. The second end 31b is lifted upward from the first posture, the upper portion of the space S is opened, and the second posture in which the space S communicates with the inside of the housing 4 (FIG. 10). Can be deformed with reference to

  As shown in FIG. 2, an example of the first film member 31 includes, for example, a plurality of cuts (that is, slits) 36 a, 36 b, and 36 c that extend along the direction from the cooling fan 21 toward the heat radiating fins 22. The cuts 36a, 36b, and 36c extend, for example, from the edge of the second end portion 31b to the center portion of the first film member 31 toward the first end portion 31a. In other words, as shown in FIG. 4, the cuts 36 a, 36 b, 36 c are provided in a region facing the space S in the first film member 31.

  As shown in FIG. 4, some of the cuts 36 a and 36 c are linearly formed along the direction from the cooling fan 21 toward the heat radiating fins 22. On the other hand, for example, a part of the middle of the other cut 36b extends along a direction obliquely intersecting the cuts 36a and 36c. The shape of the cut 36b will be described later in detail. An example of the first film member 31 is an insulator.

  On the other hand, as shown in FIG. 6, the second film member 32 covers the space S from the side opposite to the first film member 31. The second film member 32 is an example of “another film member” in the present invention. Specifically, the second film member 32 is provided from the lower surface 21 b of the cooling fan 21 to the lower surface 22 b of the radiating fin 22 and covers the entire lower portion of the space S. For example, the second film member 32 covers the entire lower portion of the space S along the longitudinal direction of the radiation fins 22.

  The second film member 32 is cantilevered in the housing 4, for example. Specifically, the second film member 32 has a first end portion 32 a that faces the lower surface 21 b of the cooling fan 21, and a second end portion 32 b that faces the lower surface 22 b of the radiating fin 22. The first end portion 32 a is a so-called fixed end, and is fixed to the lower surface 21 b of the cooling fan 21. The second end portion 32 b is a so-called free end, and is not fixed to the lower surface 22 b of the radiating fin 22.

  The first end portion 32a is fixed to the cooling fan 21 by, for example, an adhesive or a double-sided adhesive tape. The method for fixing the first end portion 32 a is not particularly limited as in the case of the first end portion 31 a of the first film member 31. Instead of the above configuration, the first end portion 32a is a free end, and the second end portion 32b is fixed to the lower surface 22b of the radiating fin 22 to support the second film member 32 in a cantilever manner. May be. The second film member 32 may be supported at both ends by fixing the first end 32 a to the cooling fan 21 and fixing the second end 32 b to the heat radiation fin 22.

  In the present embodiment, the second film member 32 reaches the lower surface 22b of the radiating fin 22 and covers the entire lower portion of the space. The second film member 32 does not necessarily need to cover the entire space S below. The second film member 32 may cover only a part of the space S from one side. As an example, the second film member 32 may not reach the lower surface 22 b of the radiating fin 22. An example of the second film member 32 is an insulator.

  As shown in FIGS. 3 and 7, an elastic member 33 is provided on one side of the space S. The elastic member 33 is provided corresponding to the height of the space S, for example, and is interposed between the first and second film members 31 and 32. That is, the elastic member 33 is provided between the first film member 31 and the second film member 32, and one of the spaces S from a direction different from the first and second film members 31 and 32. Covering.

  The elastic member 33 is provided, for example, from the side surface 21c of the cooling fan 21 where the discharge port 26b is opened to the side surface 22c of the radiating fin 22 facing the cooling fan 21, and covers one side of the space S. The elastic member 33 may cover only a part of the space S. The elastic member 33 is elastically deformed between the first and second film members 31, 32, and between the first film member 31 and the elastic member 33, and between the second film member 32 and the elastic member. Close the gap with 33. An example of the elastic member 33 is sponge rubber.

  On the other hand, as shown in FIGS. 3 and 7, a rib 34 is provided on the other side of the space S so as to cover the space S from a direction different from that of the first film member 31. . Specifically, the rib 34 stands, for example, from the inner wall surface 4 ca of the bottom wall 4 c of the housing 4 in the housing 4, and covers the space S from the side opposite to the elastic member 33. For example, the rib 34 extends from the side of the space S to the side of the cooling fan 21. The rib 34 is in contact with the side surface of the cooling fan 21. The cooling fan 21 is aligned using, for example, the ribs 34. The rib 34 may cover one side of the space S or a part of the space S.

  As shown in FIG. 7, the first and second film members 31, 32, the elastic member 33, and the ribs 34 surround the space S from four sides, and air discharged from the cooling fan 21 is supplied to the housing 4. A duct structure 30 is formed to guide the heat radiating fins 22 with almost no leakage to the other spaces. Specifically, a non-movable portion 41 that surrounds the space S from three sides is formed by the second film member 32, the elastic member 33, and the rib 34. Furthermore, a movable portion 42 that opens and closes the space S in the housing 4 is formed by the first film member 31.

  FIG. 8 shows a state in which the keyboard holder 8 and the speaker 10 are removed from the housing 4. As shown in FIG. 9, for example, two openings 45 and 46 that open into the housing 4 are provided at the rear end of the upper wall 4 a that faces the first film member 31. The first and second openings 45 and 46 are provided above the first film member 31. The first film member 31 is exposed to the outside of the housing 4 through the first and second openings 45 and 46.

The first opening 45 has a shape smaller than the outer shape of the first film member 31, for example. An example of the first opening 45 is a speaker housing portion to which the speaker 10 is detachably attached. The first opening 45 is formed in a circular shape along the outer shape of the speaker 10. When the speaker 10 is attached, the first opening 45 is closed from the outside of the housing 4 by the speaker 10.
In FIG. 4, the external shape of the 1st opening part 45 is shown with a dashed-two dotted line. As shown in FIG. 4, the notch 36 b provided in the first film member 31 is formed along the inner side of the peripheral edge 45 a of the first opening 45.

  On the other hand, as shown in FIG. 9, the second opening 46 is formed in a rectangular shape, for example. When the keyboard holder 8 is attached, the second opening 46 is blocked from the outside of the housing 4 by the keyboard holder 8. Between the first opening 45 and the second opening 46, a fixing portion 48 to which the speaker support member 47 that supports the speaker 10 is fixed is provided.

Next, the operation of the portable computer 1 will be described.
When the cooling fan 21 cools the radiating fins 22, the cooling fan 21 sucks dust in the housing 4 together with air and discharges the dusts toward the radiating fins 22. Therefore, dust may accumulate in the space between the cooling fan 21 and the heat radiating fins 22, particularly in the side surface 22 c of the heat radiating fins 22 facing the cooling fan 21.

  In performing the dust removal operation, the keyboard holder 8 is first removed from the housing 4, and then the speaker 10 is removed from the first opening 45. As a result, the first film member 31 is exposed to the outside of the housing 4 through the first and second openings 45 and 46. Then, as shown in FIG. 10, the second end 31 b of the first film member 31 is lifted through the openings 45 and 46 to expose the space S to the outside of the housing 4. With the free end of the first film member 31 lifted up, the tip of a cleaning article 29 such as a small vacuum cleaner or tweezers is inserted into the space S and collected in the space between the cooling fan 21 and the radiating fins 22. Remove dust.

  Thereby, the fall of the thermal radiation efficiency of the thermal radiation fin 22 is suppressed, cooling of the heat generating body 17 like CPU, for example is accelerated | stimulated, and the original performance of this heat generating body 17 can be exhibited.

  According to the portable computer 1 having such a configuration, the mounting density can be improved. That is, the cooling fan 21 includes a film member 31 that extends along the direction from the cooling fan 21 toward the heat radiation fins 22 and covers at least a part of the space S between the cooling fan 21 and the heat radiation fins 22 from at least one side. The cooling fan 21 can efficiently send air toward the heat radiating fins 22 even if they are arranged away from the heat radiating fins 22. That is, by providing the film member 31, a space S that can remove dust is formed between the cooling fan 21 and the heat radiating fins 22, and a decrease in blowing efficiency due to the formation of the space S is suppressed. Can do.

  Here, the film member 31 is thinner than other components mounted in the housing 4, and the thickness can be substantially ignored when considering the mounting structure in the housing 4. Furthermore, the film member 31 can be attached by, for example, an adhesive or a double-sided adhesive tape, and can be directly attached to the heat radiation fin 22 or the cooling fan 21, for example. Thus, the film member 31 can be mounted with a very simple fixing structure, and there is almost no need to consider the fixing structure of the film member 31 when considering the mounting structure in the housing 4.

  Therefore, providing the film member 31 does not complicate the structure of the electronic device, and the portable computer 1 that can improve the mounting density in the housing 4 is provided.

  Furthermore, the film member 31 is much cheaper than the case where, for example, a specialized part for collecting dust or a specialized part for forming a duct is mounted in the housing 4, and is excellent in versatility. Therefore, by employing the film member 31 instead of the specialized parts, it is possible to obtain the portable computer 1 that is low in cost and can be further reduced in weight. The film member 31 has a high degree of freedom in use because the film member 31 plays the above-described role regardless of the surface of the heat radiating fin 22, for example.

  In addition, the non-movable part 41 which comprises a part of duct structure 30 is not necessarily a required member. By providing only the first film member 31, it is possible to ensure a certain degree of blowing efficiency for the heat radiation fins 22. In the present embodiment, the film member 31 covers the space S from one side, but the film member 31 may cover the space S from two or more directions. The film member 31 may be fixed at both ends in the housing 4. By forming the member covering the space S with the film member 31, the mounting density can be improved.

  If the film member 31 has flexibility and is cantilevered in the housing 4, dust removal can be performed without removing the film member 31. That is, the space S can be easily exposed only by lifting the free end of the film member 31 (that is, only turning). Thereby, the portable computer 1 with improved maintainability (that is, ease of maintenance) can be obtained.

  If the housing 4 has the openings 45 and 46 in a region facing the film member 31, the space S can be exposed to the outside of the housing 4 without disassembling the housing 4. That is, the dust in the space S can be removed from the outside of the housing 4 through the openings 45 and 46. This contributes to improvement in maintainability of the portable computer 1.

  The openings 45 and 46 are not always necessary. Even without the openings 45 and 46, dust removal can be performed by removing the housing cover 5 from the housing base 6 without removing the film member 31 itself. Thereby, the portable computer 1 with easy maintenance is provided.

  If the film member 31 has the cuts 36a, 36b, and 36c extending along the direction from the cooling fan 21 toward the heat radiating fins 22, the film member 31 is easily turned up. For example, when two or more cuts 36a, 36b, and 36c are provided, a portion between the cuts 36a, 36b, and 36c is partially bent instead of bending and lifting the entire first film member 31. As a result, the space S can be exposed. This contributes to improvement in maintainability.

  In particular, when the openings 45 and 46 have a shape smaller than the outer shape of the film member 31, if the cuts 36a, 36b and 36c are formed, only a part of the film member 31 corresponding to the openings 45 and 46 is formed. It can also be lifted to remove dust. When the cuts 36 b are provided along the peripheral edge 45 a of the opening 45, the work of turning up the film member 31 through the opening 45 is further facilitated.

  The cuts 36a, 36b, and 36c are not always necessary. Even without the cuts 36a, 36b, 36c, the space S can be exposed by bending and lifting the entire first film member 31. Further, instead of the openings 45 and 46, one opening having a shape larger than the outer shape of the first film member 31 may be provided.

  For example, when a specialized dust collecting member or duct member having a duct structure is detachably attached from the outside of the housing 4 between the cooling fan 21 and the heat radiating fins 22, at least the outer shape of the dust collecting member or duct member. It is necessary to provide a larger opening in the housing 4. In other words, it is difficult to place other components in the place where the large opening is provided, and this restricts the mounting structure of the housing.

  On the other hand, when the movable part 42 of the duct structure 30 is formed by the flexible film member 31 as in the present embodiment, there is no need for a large opening, for example, a plurality of relatively small openings 45 and 46 are provided. Also, the dust removal operation can be performed from the outside of the housing 4 by lifting the film member 31 through the small openings 45 and 46.

  Furthermore, dust removal of the radiation fins 22 can be performed using a relatively small opening 45 that originally has another application, such as the opening 45 in which the speaker 10 is accommodated. In other words, other parts such as a speaker can be arranged above the film member 31. Further, for example, a fixing portion 48 for fixing the speaker 10 can be provided above the film member 31. That is, the degree of freedom in housing design is great. Further, when the openings 45 and 46 are closed by the speaker 10 or the keyboard holder 8, it is not necessary to provide a separate lid, so that the mounting structure can be simplified.

  If the other film member 32 which covers the said space S from the opposite side to the said film member 31 is provided, the said space S will be covered from two mutually opposing directions, and the ventilation efficiency with respect to the radiation fin 22 further improves.

  When the elastic member 33 is provided between the film member 31 and the other film member 32 and covers the space S from a different direction from the film member 31 and the other film member 32, the space S will be covered from three directions, and the ventilation efficiency with respect to the radiation fin 22 will further improve. The elastic member 33 is elastically deformed in accordance with the gap between the film member 31 and the other film member 32, and between the elastic member 33 and the one film member 31, and between the elastic member 33 and the other film member 32. The air blowing efficiency is further improved since a gap is not easily formed between the two.

  By effectively utilizing the ribs 34 used for alignment of the cooling fan 21 and covering the space S from the direction different from the film member 31 by the ribs 34, the number of parts constituting the duct structure 30 can be reduced. Can do. Thereby, the improvement of the mounting density in the housing | casing 4 can further be aimed at.

  The cooling fan 21 is less resistant to applying a load than the radiating fins 22. By fixing the first film member 31 to be deformed not to the cooling fan 21 but to the heat radiating fins 22, the failure of the cooling fan 21 can be suppressed.

  Next, a portable computer 1 as an electronic apparatus according to a second embodiment of the present invention will be described with reference to FIGS. Note that configurations having the same or similar functions as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. In the second embodiment, a part of the duct structure 30 is different from that of the first embodiment, and the basic configuration of the portable computer is the same as that of the first embodiment.

  The duct structure 30 includes a first film member 31, a first rib 34, a second rib 51, and a housing inner wall 52. The first film member 31 is the same as that of the first embodiment, for example. The first rib 34 is the same as the rib 34 of the first embodiment, for example.

  For example, the second rib 51 rises from the inner wall surface 4 ca of the bottom wall 4 c of the housing 4 into the housing 4 and covers the side of the space S from the side opposite to the first rib 34. The housing inner wall 52 is provided between the proximal end portion of the first rib 34 and the proximal end portion of the second rib 51. The housing inner wall 52 covers the space S from the side opposite to the first film member 31.

  As shown in FIG. 12, the first film member 31, the first and second ribs 34 and 51, and the housing inner wall 52 cooperate to surround the space S from four sides. Specifically, the first and second ribs 34 and 51 and the housing inner wall 52 form a rigid structure non-movable portion 41 that surrounds the space S from three directions. Furthermore, a movable portion 42 that opens and closes the space S in the housing 4 is formed by the first film member 31.

  Also with the portable computer 1 having such a configuration, as in the first embodiment, the mounting density in the housing 4 can be improved, and the cost, weight, and maintenance can be improved. An advantageous portable computer 1 can be obtained.

  The portable computer 1 according to the first and second embodiments of the present invention has been described above, but the present invention is not limited to these. The configurations according to the embodiments can be implemented in appropriate combination. For example, as indicated by a two-dot chain line in FIG. 12, the portable computer 1 according to the second embodiment may include a second film member 32 and an elastic member 33. By providing the second film member 32 and the elastic member 33, it is possible to increase the blowing efficiency with respect to the radiation fins 22.

  Members constituting the non-movable part 41 of the duct structure 30 are not limited to the second film member 32, the elastic member 33, the ribs 34 and 51, and the housing inner wall 52 described above. For example, a part of the peripheral wall 4 b of the housing 4, a part of the bottom wall 4 c of the housing 4, various components arranged in the housing 4 adjacent to the space S, and a cooling stretched to cover the space S All or a part of the non-movable part 41 may be formed by a part of the fan 21, a part of the radiating fin 22 extended so as to cover the space S, or a duct component formed independently. .

In the first and second embodiments, the first film member 31 forms the movable part 42 of the duct structure 30, and the second film member 32 forms a part of the non-movable part 41 of the duct structure 30. However, the second film member 32 may form the movable part 42 of the duct structure 30. In this case, for example, an opening covered with a detachable lid may be provided in the bottom wall 4 c of the housing 4.
Some electronic devices are listed below.
[1] Cooling in which a space is provided between the housing, the heat dissipating fin housed in the housing, and the heat dissipating fin, and the air is discharged toward the heat dissipating fin. And a film member extending along a direction from the cooling fan toward the heat radiating fin and covering at least a part of a space between the cooling fan and the heat radiating fin from at least one side. Electronic equipment.
[2] In the description of [1], the film member has flexibility and is cantilevered in the casing.
[3] In the description of [2], the casing has an opening in a region facing the film member.
[4] In the description of [3], the film member has an incision extending along a direction from the cooling fan toward the radiating fin.
[5] In the description of [4], the opening has a shape smaller than the outer shape of the film member, and the cut is provided along the periphery of the opening. Electronics.
[6] In the electronic device according to [5], an electronic device including a speaker, wherein the opening is a speaker housing portion to which the speaker is detachably attached.
[7] In the description of [6], an electronic device comprising another film member covering at least a part of the space from the side opposite to the film member.
[8] In the description of [7], while being interposed between the film member and the other film member, at least part of the space from a direction different from the film member and the other film member. An electronic apparatus comprising an elastic member for covering.
[9] In the description of [6], a rib is provided that rises from the inner wall surface of the housing and contacts the cooling fan, and the rib covers at least a part of the space from a direction different from the film member. An electronic device characterized by that.

1 is a perspective view of a portable computer according to a first embodiment of the present invention. The perspective view inside the housing | casing of the portable computer shown in FIG. FIG. 2 is a partially exploded perspective view of the interior of the portable computer shown in FIG. 1. The top view inside the housing | casing of the portable computer shown in FIG. The perspective view inside the housing | casing of the portable computer shown in FIG. FIG. 3 is a cross-sectional view of the portable computer shown in FIG. 2 taken along line F6-F6. FIG. 7 is a cross-sectional view of the portable computer shown in FIG. 6 taken along line F7-F7. The perspective view which shows the state which removed the keyboard holder and the speaker from the portable computer shown in FIG. FIG. 9 is a perspective view showing the periphery of the opening of the portable computer shown in FIG. 8. Sectional drawing which shows the state which deform | transformed the 1st film member of the portable computer shown in FIG. The perspective view inside the housing | casing of the portable computer which concerns on the 2nd Embodiment of this invention. FIG. 12 is an exemplary sectional view taken along line F12-F12 of the portable computer shown in FIG.

Explanation of symbols

  S ... space, 1 ... portable computer, 4 ... housing, 4ca ... inner wall surface, 0 ... speaker, 21 ... cooling fan, 22 ... radiating fin, 30 ... duct structure, 31 ... first film member, 32 ... second Film member, 33 ... elastic member, 34, 51 ... rib, 45, 46 ... opening.

Claims (9)

A housing provided with an opening ,
A keyboard provided in the housing;
A keyboard holder that is detachably attached to the housing, supports an end of the keyboard, and covers the opening;
Radiating fins housed in the housing;
And a cooling fan that blows air above Symbol heat-dissipating fins,
A film member having a portion facing the opening, cantilevered in the housing, and covering at least a part of a space between the cooling fan and the heat radiating fin from at least one side;
An electronic apparatus comprising:   A housing provided with an opening covered by a detachably mounted component;
  Radiating fins housed in the housing;
  A cooling fan for sending air to the heat radiating fins;
  A film member having a portion facing the opening, and covering at least a part of a space between the cooling fan and the radiation fin from at least one side;
  An electronic apparatus comprising:   The electronic device according to claim 2,
  The housing includes a fixing portion that is adjacent to the opening, and that is fixed to the part at a portion facing the film member from a side opposite to the space between the cooling fan and the heat radiating fin. Features electronic equipment.   The electronic device according to claim 2,
  A circuit board housed in the housing;
  Electronic components mounted on the circuit board and thermally connected to the radiating fins,
  The electronic device according to claim 1, wherein the component covering the opening is a component in which a signal flows between the circuit board and the component.   The electronic device according to claim 2,
  The opening is smaller than the outer shape of the film member,
  The electronic device, wherein the film member is provided with a cut along at least a part of the periphery of the opening. The electronic device according to claim 2 ,
An electronic apparatus comprising: another film member that covers at least a part of the space from the side opposite to the film member. The electronic device according to claim 6 ,
An electronic device comprising an elastic member interposed between the film member and the other film member and covering at least a part of the space from a direction different from the direction of the film member and the other film member. machine. The electronic device according to claim 2 ,
A rib that rises from the inner wall surface of the housing and contacts the cooling fan,
The said rib covers at least one part of the said space from the direction different from the said film member, The electronic device characterized by the above-mentioned.   A housing provided with an opening to which the speaker is detachably attached;
  Radiating fins housed in the housing;
  A cooling fan for sending air to the heat radiating fins;
  A film member having a portion facing the opening, and covering at least a part of a space between the cooling fan and the radiation fin from at least one side;
  An electronic apparatus comprising:

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