JP2013235995A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust the quantity of air from a fan part, which is blown onto each electronic substrate, with a simple structure.SOLUTION: Multiple electronic substrates 500, on which electronic components are mounted, are mounted on a housing 100 while facing each other. Fan parts 210 are provided at one end part sides of the multiple electronic substrates 500 mounted on the housing 100 and blow air toward the multiple electronic substrates 500. Pressure loss adjustment parts 300 are provided at the other end part sides of the multiple electronic substrate 500 and adjust the quantity of air flowing between the multiple electronic substrates 500.

Description

  The present invention relates to an electronic apparatus that cools a plurality of electronic boards on which electronic components are mounted, for example, by a fan unit.

  Electronic devices such as personal computers and servers are mounted with a high density of a plurality of electronic boards on which electronic components are mounted and a power source for supplying power to them. When such an electronic device is operated, an electronic substrate or the like in the electronic device becomes high temperature. For this reason, normally, a fan part is provided in an electronic device, and the plurality of electronic boards are cooled by air blown from the fan part.

  Here, when cooling a plurality of electronic boards by one fan part, it is necessary to distribute the cooling air blown by one fan part to each of a plurality of electronic boards.

  For this reason, for example, in the technique described in Patent Document 1, a temperature sensor and a louver are provided in the vicinity of the object to be cooled, and the louver is moved by electronic control in accordance with the temperature change around the object to be cooled. The wind direction was changed.

  Other related techniques are disclosed in Patent Documents 2, 3, and 4, for example.

JP 2009-123877 A JP 2008-47658 A JP 2002-368469 A Japanese Patent Laid-Open No. 4-1209797

  However, in the technique described in Patent Document 1, when the number of objects to be cooled which one fan unit is responsible for increases, the shape of the louver becomes complicated and the number of louvers also increases. For this reason, there existed a problem that adjustment of the air volume applied to a cooling target object also became complicated. In addition, since it is necessary to provide many adjustment parts such as a temperature sensor that measures the temperature around the object and an electric motor that moves the louver, the adjustment of the air volume applied to the object to be cooled becomes complicated, and the manufacturing cost increases due to the increase in parts. There was a problem of becoming. In addition, since the cooling air generated by the fan part normally flows in a direction where the pressure loss (air resistance) is small, simply changing the direction of the air blown from the fan part causes the cooling air to be applied to the object to be cooled. There is a limit to adjusting the air volume.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an electronic device that can easily adjust the air volume of a fan unit applied to each electronic board with a simple configuration. There is.

  An electronic device according to the present invention includes a housing for mounting a plurality of electronic substrates on which electronic components are mounted in a state of facing each other, and one end side of the plurality of electronic substrates mounted inside the housing. A fan unit that sends wind toward the plurality of electronic substrates, and a pressure loss adjustment unit that is provided on the other end side of the plurality of electronic substrates and adjusts the amount of air passing between the plurality of electronic substrates. Prepare.

  According to the electronic apparatus of the present invention, the air volume of the fan unit applied to each electronic board can be easily adjusted with a simple configuration.

It is sectional drawing which shows typically the structure of the electronic device in the 1st Embodiment of this invention. It is a figure for demonstrating the structure of a pressure loss adjustment part, Comprising: It is a figure which shows the state which fixed the shielding board. It is a figure for demonstrating the structure of a pressure loss adjustment part, Comprising: It is a figure which shows the state which can move a shielding board. It is sectional drawing which shows typically the structure of the electronic device in the 2nd Embodiment of this invention. It is a figure for demonstrating the structure of a fan part position adjustment part, Comprising: It is a figure which shows the state which fixed the fan part. It is a figure for demonstrating the structure of a fan part position adjustment part, Comprising: It is a figure which shows the state which can move a fan part. It is an external view which shows typically the structure of the electronic device in the 3rd Embodiment of this invention. It is.

<First Embodiment>
Electronic device 1000 according to the first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view schematically showing the configuration of the electronic apparatus 1000. Note that FIG. 1 shows the vertical direction of the drawing as the vertical direction.

  As shown in FIG. 1, the electronic device 1000 includes a housing 100, a fan unit 210, a pressure loss adjustment unit 300, and an upper surface opening plate 400.

  As shown in FIG. 1, the housing 100 is mounted with a plurality of electronic substrates 500 facing each other. That is, each of the plurality of electronic substrates 500 is disposed to face each other. The casing 100 has a rectangular parallelepiped outer shape. The housing 100 includes an intermediate plate 110 and a fan unit holding plate 120.

  As shown in FIG. 1, the intermediate plate 110 is provided on the lower surface side of the housing 100 so as to extend in a direction substantially perpendicular to the vertical direction (left and right direction on the paper surface of FIG. 1). As shown in FIG. 1, a plurality of connectors 111 are attached to the intermediate plate 110. An electronic substrate 500 can be attached to each of the plurality of connectors 111. As shown in FIG. 1, a plurality of intermediate plate openings 112 are formed between the plurality of connectors 111 in the intermediate plate 110. The wind sent from the fan unit 210 flows from the fan unit 210 side to the plurality of electronic substrates 500 side through the plurality of intermediate plate openings 112.

  As shown in FIG. 1, the fan unit holding plate 120 is provided on the lower surface side of the housing 100 so as to extend in a direction substantially perpendicular to the vertical direction (left and right direction in the plane of FIG. 1). Yes. The fan unit holding plate 120 holds the back side of the fan unit 210 (the lower side in FIG. 1). The fan unit holding plate 120 has a holding plate opening 121. The holding plate opening 121 is formed corresponding to the central portion of the fan unit 500. The fan unit 210 sends the air on the lower surface side of the fan unit holding plate 120 to the plurality of electronic substrates 500 through the holding plate opening 121.

  The fan unit 200 includes a fan unit 210 and a fan unit mounting base 220. The fan unit 210 is provided on one end side (the lower end side in FIG. 1) of the plurality of electronic substrates 500. As shown in FIG. 1, the fan unit 210 sends wind toward the plurality of electronic substrates 500 through the plurality of intermediate plate openings 112. The fan unit mounting base 220 holds the back surface of the fan unit 210 (the lower side of the sheet of FIG. 1). That is, the back surface of the fan unit 210 is attached to the fan unit holding plate 120 of the housing 100 via the fan unit mounting base 220.

  As shown in FIG. 1, the pressure loss adjustment unit 300 is provided on the other end side of the plurality of electronic substrates 500 (upper end side in FIG. 1). The pressure loss adjusting unit 300 is provided between the electronic substrates 500. The pressure loss adjusting unit 300 is attached to a frame 600 described later that holds the upper end portion of each electronic substrate 500. The pressure loss adjusting unit 300 adjusts the pressure loss generated between the plurality of electronic substrates 500 to adjust the amount of wind from the fan unit 210 passing between the plurality of electronic substrates 500. That is, a plurality of electronic components 520 are mounted on the electronic substrate 500. For this reason, the wind pressure passing between the plurality of electronic substrates 500 also varies depending on the size, shape, number, etc. of the electronic components 520. Some types of electronic components 520 require cooling with strong wind, such as a CPU (Central Processing Unit). The pressure loss adjusting unit 300 adjusts the pressure loss that occurs between the plurality of electronic substrates 500 in consideration of the size, shape, number, type, and the like of the electronic components 520 mounted on each electronic substrate 500. Then, the pressure loss adjusting unit 300 adjusts the amount of air that is sent from the fan unit 210 and passes between the plurality of electronic substrates 500 according to the adjustment of the pressure loss. Details of the pressure loss adjusting unit 300 will be described later with reference to FIGS. 2 and 3.

  As shown in FIG. 1, the upper surface opening plate 400 constitutes the upper surface of the housing 100. The upper surface plate 400 has a plurality of upper surface openings 410.

  As shown in FIG. 1, the electronic board 500 includes a base material 510 and an electronic component 520. The substrate 510 is a rectangular flat plate. For example, glass epoxy resin or the like is used as the material of the substrate 510. The electronic component 520 is, for example, a resistor, a coil, a capacitor, or a CPU. Electronic component 520 is mounted on the surface of base material 510. An upper end portion of the electronic substrate 500 is attached to the frame 600. Further, by attaching the electronic substrate 500 to which the frame 600 is attached to the housing 100, the lower end portion of the electronic substrate 500 is inserted into the connector 111. As a result, the electronic substrate 500 and the frame 600 are held on the intermediate plate 110 of the housing 100.

  As shown in FIG. 1, the frame 600 holds the upper end side of the plurality of electronic substrates 500 (upper side in FIG. 1). The frame 600 accommodates each electronic substrate 500. Further, the frame 600 can be attached to the housing 100 in a state where each electronic substrate 500 is accommodated. That is, with the electronic substrate 500 attached to the frame 600, the lower end portion of the electronic substrate 500 (the lower side in FIG. 1) can be inserted into the connector 111.

  Here, the configuration of the pressure loss adjusting unit 300 will be described in detail with reference to FIGS. 2 and 3.

  FIG. 2 is a view for explaining the configuration of the pressure loss adjusting unit 300 and showing a state in which the shielding plate 310 is fixed. FIG. 3 is a view for explaining the configuration of the pressure loss adjusting unit 300 and showing a state in which the shielding plate 310 can be moved.

  As shown in FIGS. 2 and 3, the pressure loss adjusting unit 300 includes a shielding plate 310, a shielding plate rotating shaft 320, a shielding plate adjustment knob portion 330, a shielding plate adjustment knob receiving portion 340, and a spring 350. And a spring stopper portion 360.

  The shielding plate 310 shields the wind passing between the plurality of electronic substrates 500 on the other end side (upper end side) of the plurality of electronic substrates 500. As shown in FIG. 1, the shielding plate 310 is held by the frame 600 so that it can rotate. The shielding plate 310 is set to a width that completely blocks the cooling air path between the printed circuit boards 500 at the maximum. The cooling air path between the printed circuit boards 500 is set so as to be adjustable from fully closed to fully open according to the rotation angle of the shielding plate 310.

  As shown in FIGS. 2 and 3, the shielding plate rotating shaft 320 is joined to the shielding plate 310. As shown in FIGS. 2 and 3, the shielding plate rotation shaft 320 can move in the axial direction of the shielding plate rotation shaft 320 (the direction of arrow A in FIG. 2, the direction of arrow B in FIG. 3). Attached to the frame 600.

  The shielding plate adjusting knob 330 is attached to one end of the shielding plate rotating shaft 320. The blocking plate adjusting knob 330 is provided to rotate the blocking plate 310 about the blocking plate rotating shaft 320. That is, by manually picking and rotating the shielding plate adjusting knob 330, the shielding plate 310 is linked to the rotation of the shielding plate adjusting knob 330 around the shielding plate rotating shaft 320. Rotate. Thereby, as shown in FIG. 1, the shielding plate 310 is opened and closed on the upper surface side of the housing 100. As described above, by rotating the shielding plate 310 around the shielding plate rotating shaft 320, the pressure loss between the plurality of electronic substrates 500 can be adjusted, and the amount of air passing between the plurality of electronic substrates 500 can be increased or decreased. it can.

  FIG. 2 shows a state where the shielding plate adjusting knob 330 is pushed in the axial direction of the shielding plate rotating shaft 320. On the other hand, FIG. 3 shows a state in which the shielding plate adjusting knob 330 is pulled out in the axial direction of the shielding plate rotating shaft 320. A plurality of concave and convex fitting claws 331 are formed in the blocking plate adjusting knob 330 in the same manner as a blocking plate adjusting knob receiving portion 340 described later. The function of the plurality of fitting claws 331 will be described later.

  Note that at least the shielding plate rotation shaft portion 320 constitutes the shielding plate movable portion of the present invention. That is, the shielding shaft movable portion adjusts the pressure loss between the plurality of electronic substrates 500 by rotating the shielding plate 310 around the shielding plate rotation shaft portion 320, and passes between the plurality of electronic substrates 500. Increase or decrease air volume.

  The shielding plate adjusting knob receiving portion 340 is fixedly attached to the frame 600. The shielding plate adjusting knob receiving portion 340 is formed corresponding to the size of the shielding plate adjusting knob portion 330. Further, a blocking plate rotating shaft 320 passes through the central portion of the blocking plate adjusting knob receiving portion 340. The barrier plate adjusting knob receiving portion 340 is formed with a plurality of concave and convex fitting claws 341 in the same manner as the barrier plate adjusting knob portion 330 described above. The functions of the plurality of fitting claws 341 will be described later together with the plurality of fitting claws 331 described above.

  The spring 350 is attached to the opposite side of the shielding plate rotating shaft portion 320 to the side on which the shielding plate adjusting knob portion 330 is attached. Further, as shown in FIGS. 2 and 3, the spring 350 is sandwiched between the frame 600 and the spring stopper portion 360. The reaction force of the spring 350 is applied to the shielding plate adjusting knob 330 via the shielding plate rotating shaft 320. Therefore, the shielding plate adjusting knob 330 is always pressed against the shielding plate adjusting knob receiving portion 340 by the reaction force of the spring 350.

  FIG. 2 shows a state where the shielding plate adjusting knob 330 is pushed in the axial direction of the shielding plate rotating shaft 320. FIG. 3 shows a state in which the shielding plate adjusting knob 330 is pulled out in the axial direction of the shielding plate rotating shaft 320.

  The spring stopper 360 is fixedly attached to the opposite side of the shielding plate rotating shaft 320 to the side on which the shielding plate adjusting knob 330 is attached. The spring stopper 360 holds the spring 350 between itself and the frame 600.

  Next, functions of the plurality of fitting claws 331 and the plurality of fitting claws 341 will be described. As described above, the plurality of fitting claws 331 are formed in the cut plate adjusting knob 330. The plurality of fitting claws 341 are formed in the blocking plate adjusting knob receiving portion 340.

  As shown in FIGS. 2 and 3, the plurality of fitting claws 331 and the plurality of fitting claws 341 are arranged to face each other.

  As shown in FIG. 2, when the shielding plate adjusting knob 330 is pushed in the axial direction of the shielding plate rotating shaft 320, the plurality of fitting claws 331 and the plurality of fitting claws 341 are fitted to each other. At this time, the shielding plate rotating shaft portion 320 as the shielding plate movable portion is held by the plurality of fitting claws 331 and the plurality of fitting claws 341 so that the shielding plate 310 does not move. As a result, the shielding plate 310 is held without rotating with respect to the housing 100 and the frame 600.

  As shown in FIG. 3, when the shielding plate adjusting knob 330 is pulled out in the axial direction of the shielding plate rotating shaft 320, the plurality of fitting claws 331 and the plurality of fitting claws 341 do not fit each other. At this time, the shielding plate 310 can rotate around the shielding plate rotation shaft portion 320.

  Note that at least the plurality of fitting claws 331 and the plurality of fitting claws 341 constitute the shielding plate holding portion of the present invention. The shielding plate holding portion holds the shielding plate movable portion (including the shielding plate rotating shaft portion 320) so that the shielding plate 310 does not move.

  Next, the operation of the electronic device 1000 according to the first embodiment of the present invention will be described.

  As shown in FIG. 1, when the fan unit 210 is activated, the fan unit 210 starts to send air below the fan unit 210 from the lower surface side to the upper surface side in the housing 100.

  The wind sent from the fan unit 210 flows between the plurality of electronic substrates 500 through the holding plate opening 112 (see arrows in FIG. 1). At this time, the wind sent from the fan unit 210 cools each electronic board 500 while passing between the plurality of electronic boards 500.

  The wind sent from the fan unit 210 flows between the plurality of electronic substrates 500 and flows toward the upper surface plate 400 of the housing 100. At this time, the amount of air flowing toward the top plate 400 side of the housing 100 varies depending on the opening / closing amount of the shielding plate 310. Therefore, by adjusting the opening / closing amount of the shielding plate 310, the pressure loss between the electronic substrates 500 is adjusted, and the air volume of the fan unit 210 applied to each electronic substrate 500 can be adjusted.

  And the wind from the fan part 210 which passed the shielding board 310 is discharged | emitted outside the housing | casing 100 through the upper surface board opening part 410. FIG.

  Next, a method for opening and closing the shielding plate 310 using the pressure loss adjusting unit 300 will be described with reference to FIGS. 1, 2, and 3.

  Normally, as shown in FIG. 2, the plurality of fitting claws 331 and the plurality of fitting claws 341 are fitted to each other. Thereby, the shielding plate rotating shaft portion 320 is held by the plurality of fitting claws 331 and the plurality of fitting claws 341 so that the shielding plate 310 does not move.

  To open and close the shielding plate 310, first, the shielding plate adjusting knob 330 is pulled in the direction of arrow A in FIG. 2 so that the plurality of fitting claws 331 and the plurality of fitting claws 341 do not fit each other. . In this state, by rotating the shielding plate adjusting knob 330, the shielding plate 310 joined to the shielding plate rotating shaft portion 320 is rotated in the direction of the arrow α shown in FIG. At this time, the shielding plate 310 is rotated according to the air volume to be passed between the electronic substrates 500. Note that the air volume to be passed between the electronic substrates 500 is determined between the plurality of electronic substrates 500 in consideration of the size, shape, number, type, and the like of the electronic components 520 mounted on the electronic substrates 500 as described above. It is determined by adjusting the pressure loss that occurs in

  Next, the shielding plate adjusting knob 330 is released while the shielding plate 310 is rotated. Then, the shielding plate adjusting knob portion 330 is pressed against the blocking plate adjusting knob receiving portion 340 in the direction of arrow B in FIG. 3 by the reaction force of the spring 350 in a preloaded state. Then, the plurality of fitting claws 331 of the shielding plate adjusting knob portion 330 and the plurality of fitting claws 341 of the shielding plate adjusting knob receiving portion 340 are fitted to each other. Thereby, the shielding plate adjusting knob 330, the shielding plate rotating shaft 320, and the shielding plate 310 cannot be rotated. As a result, the shielding plate 310 is held without rotating with respect to the frame 600.

  Furthermore, when the opening / closing degree of the shielding plate 310 is readjusted, as described above, the shielding plate adjusting knob 330 is pulled again in the direction of the arrow A in FIG. It is necessary to rotate the shielding plate adjusting knob 330 so that the fitting claws 341 are not fitted to each other.

  Thus, since the shielding plate 310 is securely held so as not to rotate by the fitting of the plurality of fitting claws 331 and the plurality of fitting claws 341, vibrations generated when the fan unit 210 and the like are operated It is possible to prevent the shielding plate 310 from moving due to the gravity of the shielding plate 310 or the like. For this reason, it can prevent that a pressure loss changes. On the other hand, when the shielding plate 310 is intentionally rotated, the opening / closing degree of the shielding plate 310 can be easily adjusted by simply pulling the shielding plate adjustment knob 330 and rotating the shielding plate adjustment knob 330. can do. Thereby, the air volume passing between the electronic substrates 500 can be easily increased or decreased. As a result, the pressure loss between the electronic substrates 500 can be adjusted with a simple configuration, and the air volume of the fan unit 210 applied to the electronic substrates 500 can be easily adjusted.

  The shielding plate is changed by changing the size of the unevenness of the plurality of fitting claws 331 of the shielding plate adjusting knob portion 330 and the size of the unevenness of the plurality of fitting claws 341 of the shielding plate adjusting knob receiving portion 340. The accuracy of the holding position of 310 can also be changed. That is, if the size of the unevenness of the plurality of fitting claws 331 and the size of the unevenness of the plurality of fitting claws 341 are changed, the adjustable width of the rotation angle of the shielding plate 310 can be changed.

  As described above, the electronic apparatus 1000 according to the first embodiment of the present invention includes the housing 100, the fan unit 210, and the pressure loss adjustment unit 300. The housing 100 is mounted with a plurality of electronic substrates 500 on which electronic components 520 are mounted facing each other. The fan unit 210 is provided on one end side of the plurality of electronic substrates 500 mounted in the housing 100 and sends wind between the plurality of electronic substrates 500. The pressure loss adjusting unit 300 is provided on the other end side of the plurality of electronic substrates 500, and adjusts the amount of air sent from the fan unit 210 and passing between the plurality of electronic substrates 500.

  Here, since the louver is used in the technique described in Patent Document 1, there is a problem that the adjustment of the air volume applied to the object to be cooled is complicated, and it is necessary to provide many adjustment parts such as a temperature sensor and an electric motor. In addition, there is a problem that the adjustment of the air volume applied to the cooling object is complicated. In addition, the adjustment of the direction of the air blown from the fan unit is limited, and there is a limit in adjusting the air volume applied to the electronic substrate 500.

  On the other hand, according to the electronic apparatus 1000 of the present invention, the pressure loss adjustment unit 300 is used to directly adjust the air volume sent from the fan unit 210 and passing between the plurality of electronic substrates 500. As compared with the technique described in No. 1, the pressure loss based on the wind passing between the electronic substrates 500 can be easily adjusted with a simple configuration, and the air volume of the fan unit 210 applied to each electronic substrate 500 can be easily adjusted. be able to.

  In the electronic device 1000 according to the first embodiment of the present invention, the pressure loss adjusting unit 300 includes a shielding plate 310 and a shielding plate movable portion (including the shielding plate rotating shaft portion 320). The shielding plate 310 shields wind passing between the plurality of electronic substrates 500 on the upper end side of the plurality of electronic substrates 500. The shielding plate movable unit moves the shielding plate 310 so that the amount of air passing between the plurality of electronic substrates 500 can be increased or decreased. Accordingly, the amount of air passing between the plurality of electronic substrates 500 can be increased or decreased by moving the shielding plate 310 using the movable portion of the shielding plate, so that the pressure based on the wind passing between the electronic substrates 500 can be achieved with a simple configuration. The loss can be easily adjusted, and the air volume of the fan unit 210 applied to each electronic substrate 500 can be easily adjusted.

  In the electronic apparatus 1000 according to the first embodiment of the present invention, the shielding plate movable unit includes a shielding plate rotating shaft portion 320 joined to the shielding plate 310. Then, the amount of air passing between the plurality of electronic substrates 500 is increased or decreased by rotating the shielding plate 310 around the shielding plate rotation shaft portion 320. Accordingly, the pressure loss based on the wind passing between the electronic substrates 500 can be easily adjusted by simply rotating the shielding plate 310 around the shielding plate rotation shaft portion 320, and the fan portions 210 applied to the electronic substrates 500 can be easily adjusted. The air volume can be easily adjusted.

  In addition, electronic device 1000 according to the first exemplary embodiment of the present invention has a shielding plate holding unit that holds a shielding plate movable portion (including shielding plate rotation shaft portion 320) so that shielding plate 310 is not moved. (Including a plurality of fitting claws 331 and 341 and a spring 350). Thereby, it is possible to prevent the shielding plate 310 from moving due to various factors such as vibration generated when the fan unit 210 or the like is operated and the gravity of the shielding plate 310. For this reason, it can prevent that the pressure loss based on the wind which passes between the electronic substrates 500 by the said factors changes, and can prevent that the air volume of the fan part 210 applied to each electronic substrate 500 changes.

  In the electronic apparatus 1000 according to the first embodiment of the present invention, the shielding plate holding portion (including the plurality of fitting claws 331 and 341 and the spring 350) is a shielding plate movable portion (the shielding plate rotating shaft portion 320). Is held by the biasing force of the biasing member (spring 350). Thereby, for example, it is not necessary to attach / detach the bolts, and accordingly, it is not necessary to disassemble the outer surface of the housing for attaching / detaching the bolts. Therefore, the shielding plate holding portion (including the plurality of fitting claws 331 and 341 and the spring 350) can hold the shielding plate movable portion (including the shielding plate rotating shaft portion 320) with a simple configuration. For example, even when the shape of the electronic component 520 on the electronic substrate 500 to be cooled is changed due to a design change caused by the discontinuation of production, the shielding plate 310 is adjusted in accordance with the changed pressure loss of the air path. By simply adjusting the degree of opening and closing again, the air volume of the fan unit 210 applied to each electronic board 500 can be easily adjusted.

<Second Embodiment>
The configuration of electronic apparatus 1000A according to the second embodiment of the present invention will be described with reference to the drawings.

  FIG. 4 is a cross-sectional view schematically showing the configuration of the electronic apparatus 1000A. Note that FIG. 4 shows the vertical direction of the page as the vertical direction.

  As shown in FIG. 4, the electronic device 1000 includes a housing 100, a fan unit 200 </ b> A, a pressure loss adjustment unit 300, and an upper surface opening plate 400. The fan unit includes a fan unit 210 and a fan unit mounting base 220A.

  Here, FIG. 1 and FIG. 4 are compared. 1 and 4 are common in the configuration of the housing 100, the pressure loss adjusting unit 300, and the upper surface opening plate 400. FIG. On the other hand, FIG. 4 is different from FIG. 1 that does not have the fan portion position adjustment unit 700 in that it has the fan portion position adjustment unit 700. In FIG. 1, the fan unit 200 is fixed to the housing 100. On the other hand, in FIG. 4, the fan unit 200 </ b> A is held by the housing 100 so that it can move. In this respect as well, the two are different.

  That is, as shown in FIG. 4, the fan unit position adjusting unit 700 is provided on the lower surface side of the fan unit 210 (lower side in the paper surface of FIG. 4).

  Here, the configuration of the fan unit position adjusting unit 700 will be described in detail with reference to FIGS. 5 and 6.

  FIG. 5 is a diagram for explaining the configuration of the fan unit position adjustment unit 700 and shows a state in which the fan unit 210 is fixed. FIG. 6 is a diagram for explaining the configuration of the fan unit position adjustment unit 700 and shows a state in which the fan unit 210 can be moved.

  As shown in FIGS. 5 and 6, the fan part adjusting unit 700 includes a pinion gear 710, a rack gear 720, a fan part position adjusting knob part 730, a fan part position adjusting knob receiving part 740, and a spring 750. A spring stopper portion 760, a pinion gear rotation shaft 770, a support frame 780, and a lift prevention frame 790. The fan unit adjustment unit 700 adjusts the position of the fan unit 210 using the configuration included therein.

  As shown in FIGS. 4, 5, and 6, the pinion gear 710 is a cylindrical gear. The pinion gear 710 meshes with the rack gear 720. Therefore, when the pinion gear 710 rotates, the rack gear 720 moves. The pinion gear 710 is fixedly attached to the pinion gear rotation shaft 770. For this reason, the pinion gear 710 rotates in conjunction with the pinion gear rotation shaft 770.

  As shown in FIGS. 4, 5, and 6, the rack gear 720 is attached to the fan part mounting base 220 </ b> A of the fan part 210. The rack gear 720 meshes with the pinion gear 710. Therefore, when the pinion gear 710 rotates, the rack gear 720 moves. As described above, since the rack gear 720 is attached to the fan part mounting base 220A of the fan part 210, the fan part 210 moves in the direction of arrow C in FIG. 4 as the rack gear 720 moves.

  Fan part position adjusting knob 730 is attached to one end of pinion gear rotation shaft 770. The fan portion position adjusting knob 730 is provided to rotate the pinion gear 710 about the pinion gear rotation shaft 770. That is, the pinion gear 710 rotates around the pinion gear rotation shaft 770 by picking and rotating the fan portion position adjusting knob 730 by hand. When the pinion gear 710 rotates about the pinion gear rotation shaft 770, the rack gear 720 moves in conjunction with the pinion gear 710. Further, the fan unit 210 moves in the direction C in FIG. 4 as the rack gear 720 moves. In this manner, the relative position of the fan unit 210 with respect to the plurality of electronic substrates 500 is changed by moving the fan unit 210 in a direction substantially perpendicular to the surface of the plurality of electronic substrates 500 (the direction of the arrow C in FIG. Can be made. As a result, the distribution of the cooling air sent by the fan unit 210 can be changed, and the air volume distribution can be adjusted.

  FIG. 5 shows a state in which the fan position adjusting knob 730 is pushed in the axial direction of the pinion gear rotation shaft 770. On the other hand, FIG. 6 shows a state in which the fan position adjusting knob 730 is pulled out in the axial direction of the pinion gear rotation shaft 770. The fan portion position adjusting knob portion 730 is formed with a plurality of concave and convex fitting claws 731 as in the fan portion position adjusting knob receiving portion 740 described later. The function of the plurality of fitting claws 731 will be described later.

  Note that at least the pinion gear 710, the rack gear 720, and the pinion gear rotation shaft 770 constitute a fan part movable part of the present invention. That is, the fan unit movable unit rotates the pinion gear 710 around the pinion gear rotation shaft 770, thereby causing the fan unit 210 to move in a direction substantially perpendicular to the surface of the plurality of electronic boards 500 (indicated by an arrow C in FIG. 4). Direction). As a result, the relative position of the fan unit 210 with respect to the plurality of electronic substrates 500 can be changed. The distribution of the cooling air sent by the fan unit 210 can be changed to adjust the air volume distribution.

  The fan portion position adjusting knob receiving portion 740 is fixedly attached to the housing 100. The fan portion position adjusting knob receiving portion 740 is not directly attached to the housing 100 but may be attached to a frame (not shown) fixed to the housing 100, for example.

  The fan portion position adjusting knob receiving portion 740 is formed corresponding to the size of the fan portion position adjusting knob portion 730. A pinion gear rotation shaft 770 passes through the center of the fan portion position adjusting knob receiving portion 740. The fan portion position adjusting knob receiving portion 740 is formed with a plurality of concave and convex fitting claws 741 as in the above-described fan portion position adjusting knob portion 730. The functions of the plurality of fitting claws 741 will be described later together with the plurality of fitting claws 731 described above.

  The spring 750 is attached to the side of the pinion gear rotation shaft 770 opposite to the side on which the fan part position adjusting knob 730 is attached. Further, as shown in FIGS. 5 and 6, the spring 750 is sandwiched between the housing 100 and the spring stopper 760. The reaction force of the spring 750 is applied to the fan portion position adjusting knob portion 730 via the pinion gear rotation shaft 770. Therefore, the fan part position adjusting knob 730 is always pressed against the fan part position adjusting knob 730 by the reaction force of the spring 750. FIG. 5 shows a state where the fan portion position adjusting knob portion 730 is pushed in the axial direction of the pinion gear rotation shaft 770 by the urging force of the spring 750. FIG. 6 shows a state in which the fan portion position adjusting knob portion 730 is pulled out in the axial direction of the pinion gear rotation shaft 770 against the urging force of the spring 750.

  The spring stopper portion 760 is fixedly attached to the side of the pinion gear rotation shaft 770 opposite to the side on which the fan portion position adjusting knob portion 730 is attached.

  The pinion gear rotation shaft 770 is a cylindrical shaft. As shown in FIGS. 5 and 6, the pinion gear rotation shaft 770 holds two pinion gears 710. Both ends of the pinion gear rotation shaft 770 are held by the housing 100. As described above, both ends of the pinion gear rotation shaft 770 are not directly held by the housing 100 but may be held by a frame (not shown) attached to the housing 100, for example. .

  Support frame 780 supports the lower surface side (lower side in FIGS. 5 and 6) of fan unit mounting base 220 </ b> A of fan unit 210. The support frame 780 holds the fan unit mounting base 220 </ b> A together with the anti-lifting frame 790. In the example of FIGS. 5 and 6, two support frames 780 are provided.

  The floating prevention frame 790 supports the upper surface side (upper side in FIGS. 5 and 6) of the fan unit mounting base 220 </ b> A of the fan unit 210. The lifting prevention frame 790 is held together with the support frame 780 with the fan unit mounting base 220A interposed therebetween. In the example of FIGS. 5 and 6, two lifting prevention frames 790 are provided in the same manner as the support frame 780.

  In this way, the fan unit mounting base 220A is held so as to be sandwiched between the support frame 780 and the lifting prevention frame 790. For this reason, it can suppress that the fan part 210 attached to 220 A of fan part attachment bases moves to the direction (up-down direction of the paper surface of FIG. 4) of the some electronic substrate 500. FIG.

  In addition, as shown in FIGS. 5 and 6, the fan unit mounting base 220 </ b> A is provided with a shift preventing unit 221. The misalignment prevention unit 221 is attached to the lower surface of the fan unit mounting base 220A. Further, the shift prevention part 221 is provided inside the pair of support frames 780 so as to protrude from the lower surface of the fan part mounting base 220A. In this way, the fan unit mounting base 220A can be held so as not to move in the axial direction of the pinion gear rotation shaft 770.

  Next, functions of the plurality of fitting claws 731 and the plurality of fitting claws 741 will be described. As described above, the plurality of fitting claws 731 are formed in the fan portion position adjusting knob portion 730. The plurality of fitting claws 741 are formed in the fan portion position adjusting knob receiving portion 740. The plurality of fitting claws 731 and fitting claws 741 perform the same functions as the plurality of fitting claws 331 and fitting claws 341 described above.

  As shown in FIGS. 5 and 6, the plurality of fitting claws 731 and the plurality of fitting claws 741 are arranged to face each other.

  As shown in FIG. 5, when the fan part position adjusting knob 730 is pushed in the axial direction of the pinion gear rotation shaft 770, the plurality of fitting claws 731 and the plurality of fitting claws 741 are fitted to each other. At this time, the pinion gear rotation shaft 770 is held so that the pinion gear 710 is not rotated by the fitting of the plurality of fitting claws 731 and the plurality of fitting claws 741. As a result, the pinion gear 710 does not rotate and the rack gear 720 does not move. Therefore, the fan unit 210 is also held without moving in the direction of arrow C in FIG.

  As shown in FIG. 6, when the fan portion position adjusting knob 730 is pulled out in the axial direction of the pinion gear rotation shaft 770, the plurality of fitting claws 731 and the plurality of fitting claws 741 are not fitted to each other. At this time, the pinion gear 710 can rotate around the axis of the pinion gear rotation shaft 770. That is, by rotating the fan position adjusting knob 730 around the axis of the pinion gear rotating shaft 770 while the fan position adjusting knob 730 is pulled out in the axial direction of the pinion gear rotating shaft 770, The pinion gear 710 rotates about the axis of the pinion gear rotation shaft 770. The rack gear 720 is moved by the rotation of the pinion gear 710. Further, the fan unit 210 moves in the direction of arrow C in FIG. 4 as the rack gear 720 moves.

  Note that at least the plurality of fitting claws 731 and the plurality of fitting claws 741 constitute a fan part holding portion of the present invention. The fan unit holding unit holds the fan unit movable unit (including the pinion gear 710, the rack gear 720, and the pinion gear rotation shaft 770) so that the fan unit 210 does not move.

  Next, the operation of the electronic device 1000A according to the second embodiment of the present invention will be described.

  As shown in FIG. 4, when the fan unit 210 is activated, the fan unit 210 starts to send air below the fan unit 210 from the lower surface side to the upper surface side in the housing 100.

  The wind sent from the fan unit 210 flows between the plurality of electronic substrates 500 through the holding plate opening 112 (see arrows in FIG. 4). At this time, the wind sent from the fan unit 210 cools each electronic board 500 while passing between the plurality of electronic boards 500.

  The wind sent from the fan unit 210 flows between the plurality of electronic substrates 500 and flows toward the upper surface plate 400 of the housing 100.

  At this time, the amount of air flowing toward the top plate 400 side of the housing 100 varies depending on the opening / closing amount of the shielding plate 310. Therefore, by adjusting the opening / closing amount of the shielding plate 310, the air volume of the fan unit 210 applied to each electronic substrate 500 can be adjusted.

  Further, the relative position of the fan unit 210 with respect to the plurality of electronic substrates 500 can also be changed depending on the position of the fan unit 210. Then, the distribution of the cooling air sent by the fan unit 210 can be changed, and the distribution of the air volume of the fan unit 210 applied to each electronic substrate 500 can be adjusted.

  And the wind from the fan part 210 which passed the shielding board 310 is discharged | emitted outside the housing | casing 100 through the upper surface board opening part 410. FIG.

  Next, a method for adjusting the position of the fan unit 210 using the fan unit position adjusting unit 700 will be described with reference to FIGS. 4, 5, and 6.

  Note that the method for opening and closing the shielding plate 310 shown in FIG. 4 is the same as that described in the first embodiment, and a description thereof will be omitted here.

  Normally, as shown in FIG. 5, the plurality of fitting claws 731 and the plurality of fitting claws 741 are fitted to each other. The pinion gear rotation shaft 770 is held by the plurality of fitting claws 331 and the plurality of fitting claws 341 so that the pinion gear 710 does not move.

  When moving the fan unit 210, first, the fan unit position adjusting knob 730 is pulled in the direction of arrow D in FIG. 5 so that the plurality of fitting claws 731 and the plurality of fitting claws 741 are not fitted to each other. To do. In this state, the fan portion position adjusting knob 730 is rotated around the pinion gear rotation shaft 770. Thereby, the pinion gear 710 attached to the pinion gear rotation shaft 770 rotates around the axis of the pinion gear rotation shaft 770. Since the pinion gear 710 and the rack gear 720 mesh with each other, the rotation of the pinion gear 710 moves the fan unit mounting base 220A to which the rack gear 720 is attached in the direction of arrow C in FIG. The fan unit 210 is attached to the fan unit mounting base 220A. Therefore, the fan unit 210 is moved in the direction of arrow C in FIG. 4 by rotating the fan unit position adjusting knob 730 about the pinion gear rotation shaft 770.

  Next, the fan unit position adjusting knob 730 is released while the fan unit 210 is moved. Then, the fan portion position adjusting knob portion 730 is pressed against the fan portion position adjusting knob receiving portion 740 in the direction of arrow E in FIG. 6 by the reaction force of the spring 750 in the preloaded state. Then, the plurality of fitting claws 731 of the fan portion position adjusting knob portion 730 and the plurality of fitting claws 741 of the fan portion position adjusting knob receiving portion 740 are fitted to each other. As a result, the fan portion position adjusting knob 730, the pinion gear rotating shaft 770, and the pinion gear 710 cannot be rotated. As a result, the pinion gear rotation shaft 770 is held so that the pinion gear 710 does not rotate. That is, the pinion gear 710 does not rotate and the rack gear 720 does not move. Therefore, the fan unit 210 is also held without moving in the direction of arrow C in FIG.

  Furthermore, when the position of the fan unit 210 is readjusted, as described above, the fan unit position adjusting knob 730 is pulled again in the direction of the arrow D in FIG. It is necessary to rotate the fan portion position adjusting knob portion 730 so that the fitting claws 741 are not fitted to each other.

  Thus, since the fan part 210 is securely held so as not to move by the fitting of the plurality of fitting claws 731 and the plurality of fitting claws 741, vibrations generated when the fan part 210 is operated, It is possible to prevent the fan unit 210 from moving due to its own weight. On the other hand, when it is desired to move the fan unit 210 intentionally, the position of the fan unit 210 can be easily adjusted by simply pulling the fan unit position adjusting knob 730 and rotating the fan unit position adjusting knob 730. Can be adjusted. Thereby, the relative position of the fan unit 210 with respect to the plurality of electronic substrates 500 can be changed. Then, the distribution of the cooling air sent by the fan unit 210 can be changed, and the distribution of the air volume of the fan unit 210 applied to each electronic substrate 500 can be easily adjusted.

  In addition, by changing the size of the unevenness of the plurality of fitting claws 731 of the fan portion position adjusting knob portion 730 and the size of the unevenness of the plurality of fitting claws 741 of the fan portion position adjusting knob receiving portion 740, The movement amount of the fan unit 210 and the accuracy of the position of the fan unit 210 can be changed. Similarly, the movement amount of the fan unit 210 and the accuracy of the position of the fan unit 210 can also be changed by changing the size of the teeth of the pinion gear 710 and the size of the teeth of the rack gear 720.

  As described above, the electronic device 1000A according to the second embodiment of the present invention includes the fan portion position adjustment unit. The fan unit position adjusting unit adjusts the position of the fan unit 210 on one end side of the plurality of electronic substrates 500. Thereby, the relative position of the fan unit 210 with respect to the plurality of electronic substrates 500 can be changed. For this reason, the distribution of the cooling air sent by the fan unit 210 can be changed, and the distribution of the air volume sent between the electronic boards 500 can be adjusted. In addition, in the electronic apparatus 1000 </ b> A of the present invention, the air volume sent from the fan unit 210 and passing between the plurality of electronic substrates 500 can be directly adjusted using the pressure loss adjusting unit 300. Therefore, according to the electronic apparatus 1000A of the present invention, it is possible to appropriately adjust the air volume of the fan unit 210 applied to each electronic board 500 while adjusting the distribution of the air volume of the fan part 210 sent between the electronic boards 500. .

  In the electronic apparatus 1000A according to the second embodiment of the present invention, the fan unit position adjusting unit includes a fan unit movable unit (consisting of a pinion gear 710, a rack gear 720, a pinion gear rotating shaft 770, and the like). The fan unit movable unit moves the fan unit 210 in a direction substantially perpendicular to the surfaces of the plurality of electronic substrates 500. Thereby, since the relative position of the fan unit 210 with respect to the plurality of electronic substrates 500 can be changed by moving the fan unit 210 using the fan unit movable unit, the distribution of the air volume sent between the electronic substrates 500 is distributed. Can be adjusted easily.

  In electronic device 1000A according to the second exemplary embodiment of the present invention, the fan unit movable portion includes a pinion gear 710 that is a cylindrical gear, a pinion gear rotation shaft 770, and a rack gear 720. A pinion gear 710 is attached to the pinion gear rotation shaft 770 and is held by the housing 100. The rack gear 720 is attached to the fan unit 210 and meshes with the pinion gear 720. Then, by rotating the pinion gear 710 about the pinion gear rotation shaft 770, the fan unit 210 is moved in a direction substantially perpendicular to the surfaces of the plurality of electronic substrates 500. Thereby, the relative position of the fan unit 210 with respect to the plurality of electronic substrates 500 can be easily changed by simply rotating the pinion gear 710 around the pinion gear rotation shaft 770. As a result, it is possible to easily adjust the distribution of the air volume sent between the electronic substrates 500.

  Further, in electronic device 1000A according to the second embodiment of the present invention, fan unit movable parts (including pinion gear 710, pinion gear rotating shaft 770, and rack gear 720) are provided so that fan part 210 does not move. A fan part holding part (including a plurality of fitting claws 731 and 741 and a spring 750) is provided. Thereby, it is possible to prevent the fan unit 210 from moving due to vibration generated when the fan unit 210 or the like is operated, the own weight of the fan unit 210, or the like.

  In the electronic apparatus 1000A according to the second embodiment of the present invention, the fan part holding part (including the plurality of fitting claws 731 and 741 and the spring 750) is the fan part movable part (pinion gear 710, pinion gear). The rotating shaft 770 and the rack gear 720 are included) by the biasing member (spring 750). Thereby, for example, it is not necessary to attach / detach the bolts, and accordingly, it is not necessary to disassemble the outer surface of the housing for attaching / detaching the bolts. Therefore, the fan portion holding portion (including the plurality of fitting claws 731 and 741 and the spring 750) has a simple configuration, and the fan portion movable portion (including the pinion gear 710, the pinion gear rotating shaft 770, and the rack gear 720). Can be held.

<Third Embodiment>
The configuration of electronic device 1000B according to the third embodiment of the present invention will be described with reference to the drawings.

  FIG. 7 is an external view schematically showing the configuration of the electronic apparatus 1000B. FIG. 7 shows the vertical direction of the paper surface as the vertical direction.

  As shown in FIG. 7, in the electronic device 1000 </ b> B, a shielding plate position display unit 800 and a fan unit position display unit 900 are provided on the outer surface side of the housing 100.

  The internal configuration of electronic device 1000B is the same as that of electronic device 1000A shown in FIG.

  As shown in FIG. 7, the shielding plate position display unit 800 is provided on the outer surface side of the housing 100 and at a position corresponding to the shielding plate 310 (see FIG. 4).

  The shielding plate position display unit 800 includes a knob mark 810 and an angle scale 820. The knob mark 810 is provided at an angle parallel to the surface of the shielding plate 310. The knob mark 810 rotates with the rotation of the shielding plate 310. The angle scale 820 is provided on the outer surface of the housing 100 by printing or the like.

  As described above, since the electronic apparatus 1000B according to the third embodiment of the present invention includes the shielding plate position display unit 800 that indicates the position of the shielding plate 310, the opening / closing of the shielding plate 310 can be adjusted while being visually observed. As a result, the air volume of the fan unit 210 applied to each electronic substrate 500 can be easily adjusted while visually observing.

  As illustrated in FIG. 7, the fan unit position display unit 900 is provided on the outer surface side of the housing 100 and at a position corresponding to the fan unit 210 (see FIG. 4).

  The fan unit position display unit 900 includes a fan mark 910, a position scale 920, and a position confirmation window 930. The fan mark 910 is attached to the fan unit 210 or the fan unit mounting base 220A. The fan mark 910 moves in the left-right direction on the paper surface of FIG. 7 according to the movement amount of the fan unit 210. The position scale 920 is provided on the outer surface of the housing 100 by printing or the like. The position confirmation window 930 is an opening provided in the housing 100 according to the movement position of the fan mark 910.

  As described above, the electronic apparatus 1000B according to the third embodiment of the present invention includes the fan unit position display unit 900 that indicates the position of the fan unit 210. Therefore, the position of the fan unit 210 can be adjusted while being visually observed. As a result, it is possible to easily adjust the distribution of the air volume sent between the electronic substrates 500 while visually observing the distribution.

  In the present embodiment, an example is shown in which both the shielding plate position display unit 800 and the fan unit position display unit 900 are provided on the outer surface side of the housing 100. However, only one of the shielding plate position display unit 800 and the fan unit position display unit 900 may be provided.

  The present invention has been described above based on the embodiment. The embodiment is an exemplification, and various modifications, increases / decreases, and combinations may be added to the above-described embodiments without departing from the gist of the present invention. It will be understood by those skilled in the art that modifications to which these changes, increases / decreases, and combinations are also within the scope of the present invention.

Moreover, although one part or all part of the said 1st-3rd embodiment can also be described as follows, it is not restricted to the following.
[Appendix 1]
A housing for mounting a plurality of electronic boards on which electronic components are mounted facing each other;
A fan unit that is provided on one end side of the plurality of electronic substrates mounted inside the housing, and sends air between the plurality of electronic substrates;
An electronic apparatus comprising: a pressure loss adjusting unit that is provided on the other end side of the plurality of electronic substrates and adjusts an air volume that is sent from the fan unit and passes between the plurality of electronic substrates.
[Appendix 2]
The pressure loss adjusting unit is
A shielding plate that shields wind passing between the plurality of electronic substrates on the upper end side of the plurality of electronic substrates;
The electronic device according to appendix 1, further comprising: a shielding plate movable unit that moves the shielding plate so that the amount of air passing between the plurality of electronic substrates can be increased or decreased.
[Appendix 3]
The shielding plate movable part is
A shielding plate rotating shaft joined to the shielding plate;
The electronic device according to appendix 2, wherein the amount of air passing between the plurality of electronic substrates is increased or decreased by rotating the shielding plate around the shielding plate rotation shaft portion.
[Appendix 4]
The electronic apparatus according to claim 2 or 3, further comprising a shielding plate holding portion that holds the shielding plate movable portion so that the shielding plate does not move.
[Appendix 5]
The electronic device according to appendix 4, wherein the shielding plate holding portion holds the shielding plate movable portion by an urging member.
[Appendix 6]
The electronic device according to any one of supplementary notes 1 to 5, further comprising a shielding plate position display unit that indicates a position of the shielding plate.
[Appendix 7]
The electronic device according to any one of supplementary notes 1 to 6, further comprising a fan part position adjusting unit that adjusts a position of the fan part on one end side of the plurality of electronic substrates.
[Appendix 8]
The fan part position adjusting part is
The electronic apparatus according to appendix 7, further comprising a fan unit movable unit that moves the fan unit in a direction substantially perpendicular to the surfaces of the plurality of electronic substrates.
[Appendix 9]
The fan part movable part is
A pinion gear which is a cylindrical gear;
The pinion gear is mounted, and the pinion gear rotating shaft held in the housing;
A rack gear attached to the fan portion and meshing with the pinion gear;
The electronic apparatus according to appendix 8, wherein the fan unit is moved in a direction substantially perpendicular to the surfaces of the plurality of electronic substrates by rotating the pinion gear about the pinion gear rotation axis.
[Appendix 10]
The electronic device according to appendix 8 or 9, further comprising a fan part holding part that holds the fan part movable part so that the fan part does not move.
[Appendix 11]
The electronic device according to appendix 10, wherein the fan unit holding unit holds the fan unit movable unit by an urging member.
[Appendix 12]
The electronic device according to any one of appendices 7 to 10, further comprising a fan part position display unit that indicates a position of the fan part.

DESCRIPTION OF SYMBOLS 100 Housing | casing 110 Intermediate | middle board 111 Connector 112 Intermediate | middle board opening part 120 Fan part holding | maintenance board 121 Holding | maintenance board opening part 200 Fan unit 200A Fan unit 210 Fan part 220 Fan part mounting base 220A Fan part mounting base 300 Pressure loss adjustment part 310 Shielding plate 320 Shielding plate rotating shaft 330 Shielding plate adjusting knob portion 331 Fitting claw 340 Shielding plate adjusting knob receiving portion 341 Fitting claw 350 Spring 360 Spring stopper portion 400 Upper surface plate 410 Upper surface opening portion 500 Electronic substrate 600 Frame 700 Fan portion position adjustment 710 Pinion gear 720 Rack gear 730 Fan part position adjustment knob 731 Fitting claw 740 Fan part position adjustment knob receiving part 741 Fitting claw 750 Spring 760 Spring stopper part 77 Pinion gear rotation shaft 780 supporting frame 790 floating prevention frame 800 shielding plate position display unit 810 pinch mark 820 angular scale 900 fan section position display unit 910 fan mark 920 located graduations 930 position confirmation window 1000 electronic equipment 1000A Electronic Equipment

Claims (10)

A housing for mounting a plurality of electronic boards on which electronic components are mounted facing each other;
A fan unit that is provided on one end side of the plurality of electronic substrates mounted inside the housing, and sends air between the plurality of electronic substrates;
An electronic apparatus comprising: a pressure loss adjusting unit that is provided on the other end side of the plurality of electronic substrates and adjusts an air volume that is sent from the fan unit and passes between the plurality of electronic substrates. The pressure loss adjusting unit is
A shielding plate that shields wind passing between the plurality of electronic substrates on the upper end side of the plurality of electronic substrates;
The electronic device according to claim 1, further comprising: a shielding plate movable unit that moves the shielding plate so that the amount of air passing between the plurality of electronic substrates can be increased or decreased. The shielding plate movable part is
A shielding plate rotating shaft joined to the shielding plate;
The electronic apparatus according to claim 2, wherein the amount of air passing between the plurality of electronic substrates is increased or decreased by rotating the shielding plate around the shielding plate rotation shaft portion.   The electronic device of Claim 2 or 3 provided with the shielding board holding | maintenance part which hold | maintains the said shielding board movable part so that the said shielding board may not move.   The electronic device according to claim 4, wherein the shielding plate holding portion holds the shielding plate movable portion by an urging member.   The electronic device of any one of Claims 1-5 provided with the shielding board position display part which shows the position of the said shielding board.   The electronic device of any one of Claims 1-6 provided with the fan part position adjustment part which adjusts the position of the said fan part in the one end part side of these electronic substrates. The fan part position adjusting part is
The electronic device according to claim 7, further comprising a fan unit movable unit that moves the fan unit in a direction substantially perpendicular to the surfaces of the plurality of electronic substrates. The fan part movable part is
A pinion gear which is a cylindrical gear;
The pinion gear is mounted, and the pinion gear rotating shaft held in the housing;
A rack gear attached to the fan portion and meshing with the pinion gear;
The electronic apparatus according to claim 8, wherein the fan unit is moved in a substantially vertical direction with respect to the surfaces of the plurality of electronic substrates by rotating the pinion gear about the pinion gear rotation shaft.   The electronic device according to claim 8, further comprising a fan part holding part that holds the fan part movable part so that the fan part does not move.

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