JP5065444B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine such as a pachinko machine, an arrangement ball machine, or a slot machine, in which a heat sink and a cooling fan are arranged side by side in the surface direction of a substrate.

  In gaming machines, such as pachinko machines, special symbol starting means, normal winning means, big winning means, etc. are mounted in the gaming area of the game board, and image display means such as liquid crystal display means are provided in the approximate center of the gaming area. A variety of effect images are displayed on the image display section of the image display means in accordance with changes in the gaming state by special symbol starting means, normal winning means, big winning means, and the like. The main control board for controlling the game operation by the special symbol starting means, the normal winning means, the big winning means, etc., and the image control board for controlling the effect image displayed on the image display means are accommodated in respective board cases. It is mounted on the back side of the game board.

  Recent pachinko machines tend to employ high-resolution image display means and use electronic components such as LSIs with high processing capabilities to process image information at high speed. On the other hand, when an electronic component such as an LSI with high processing capability is employed, it is necessary to prevent the heating. Therefore, a heat sink for heat dissipation that abuts on an electronic component that easily generates heat and a cooling fan that cools the heat sink by air cooling are provided to forcibly cool the electronic component.

  In mounting the heat sink and the cooling fan, conventionally, the heat sink and the cooling fan are stacked and fixed to the board in the board case in the thickness direction of the board (Patent Document 1), and the case body of the board case is fixed. There is one (Patent Document 2) in which a heat sink and a cooling fan are overlapped and fixed on the front and back sides so that the case body is sandwiched from both sides.

  For example, in the former mounting form, a heat sink that contacts the electronic components of the board is fixed to the board with mounting pins or the like, and a cooling fan is fixed on the heat sink with mounting screws. In the latter mounting form, a cooling fan is fitted into the recessed portion on the outer side of the case body, and a heat sink that faces the cooling fan is sandwiched between the bottom wall of the recessed portion on the inner side of the case body. It is fixed to.

JP 2009-279084 A JP-A-2005-150341

  The conventional heat sink and cooling fan mounting structure is different depending on whether it is mounted on the board in the board case or on both the front and back sides of the case body constituting the board case. Since they are mounted in a state of being stacked in the vertical direction, there is a drawback that the thickness of the entire substrate case becomes large. Therefore, in the case of a substrate case that is mounted in a place where the entire thickness of the substrate case must be limited, there is a problem in that the heat dissipation effect by the heat sink is reduced, such as keeping the fin height of the heat sink low.

  In addition, the case body of the board case is provided with a large number of heat radiation holes in a wide area corresponding to the board inside. However, when the heat sink and the cooling fan are arranged in an overlapping manner, the entire heat radiation hole in a wide area is provided. Therefore, the air is sucked exclusively from the limited air inlets in the vicinity of the heat sink and the cooling fan without sucking outside air uniformly. On the other hand, in order to prevent this, a new measure is required such as providing a partition wall in the substrate case to form a cooling passage over the entire area of the substrate case. Since it becomes large, the problem that the height of a partition becomes large will arise.

  In view of such a conventional problem, the present invention can reduce the size of the substrate case in the thickness direction, improve the heat dissipation effect of the heat sink, and easily improve the cooling effect in the substrate case. An object is to provide a game machine that can be used.

The present invention is an exothermic electronic component is loaded board accommodated in the substrate cases, the heat sink for radiating said electronic components heat in substrate cases, the cooling air the heatsink in the gaming machine that includes a cooling fan for cooling by the cooling fan and the heat sink is arranged in the surface direction of the base plate, the cooling fan is formed on the outer surface of the case body of the board case The heat sinks are respectively disposed in positioning holding portions formed on the inner surface of the case body in the housing recesses .

According to the present invention, the thickness dimension of the substrate cases can be reduced, it can satisfactorily heat dissipation effect of heat sink, yet the cooling effect in the substrate cases can be easily improved.

It is a front view of the pachinko machine which shows one embodiment of the present invention. It is a rear view of the same game board. It is a disassembled perspective view of the image control board case. It is a longitudinal cross-sectional view of the image control board case. It is a cross-sectional view of the image control board case. It is a longitudinal cross-sectional view of the positioning holding part and a heat sink. It is a transverse cross section of the positioning holding part and a heat sink. It is a front view of the 1st case body.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 8 illustrate an embodiment of the present invention embodied in a pachinko machine. In FIG. 1, reference numeral 1 denotes a gaming machine main body, which includes a rectangular outer frame 2 and a front frame 3 pivotally attached to the front side of the outer frame 2 so as to be openable and closable. The front frame 3 is detachably attached to the outer frame 2 via a pair of upper and lower hinges 4 on the left end side.

  A game board 5 is detachably mounted on the upper side of the front frame 3, for example, from the front side, a glass door 6 is located on the front side of the game board 5, and a front opening / closing plate 7 is adjacent to the lower side of the glass door 6, respectively. Has been placed. The glass door 6 and the front opening / closing plate 7 are pivotally supported by the front frame 3 by a hinge (not shown) on the same side as the hinge 4 so as to be opened and closed. The front opening / closing plate 7 is provided with a storage tray 8 for storing game balls for launch, a launch handle 9 for operating launch means (not shown), and the like on the front. The launching means launches a game ball supplied from the storage tray 8 toward the game board 5 when the launch handle 9 is operated.

  On the front side of the game board 5, a guide rail 10 for guiding a game ball fired by the launching means is annularly mounted, and a game area 12 in the guide rail 10 is provided with a center provided with an image display means 13. Various game parts such as a case 14, a passing gate 15, an open / close winning means 16, a large winning means 17, a normal winning means 18 and the like are mounted.

  Further, on the back side of the game board 5, as shown in FIG. 2, a back cover 20 and a ball collecting case 21 that cover game parts such as the center case 14 from the rear side are arranged vertically. For example, an effect control board case 25 in which a main control board case 23 storing a main control board 22 is detachably mounted on the back side of the ball collecting case 21 and an effect control board 24 is stored on the back side of the back cover 20. And an image control board case 27 storing the image control board 26 are detachably mounted.

  The main control board 22 controls the overall game operation during the game, the image control board 26 controls the effect image displayed on the image display means 13, and the effect control board 24 further controls the image display means. The control unit 13 controls the effect operation of movable effect means (not shown) arranged around the area 13, the effect light emission of other effect lamps on the game board 5 side, the sound effect of the speaker, and the like.

  The collecting case 21 collects the game balls guided to the back side of the game board 5 by winning the open / close-type winning means 16, the large winning means 17, the normal winning means 18 and the like, and from the discharge port 28 to the collection passage (not shown) side. It is arranged in the vicinity of the lower side of the back cover 20 and is detachably fixed to the back side of the game board 5.

  On the back side of the ball collecting case 21, for example, as shown in FIG. 2, a main control board case mounting portion 30 to which the main control board case 23 can be detachably mounted is provided in the approximate center. Also, on one side of the main control board case mounting part 30, a board side joint part 31 corresponding to a frame side joint part (not shown) on the front frame 3 side is provided, and the game board 5 is attached to the front frame 3 Then, facing the front side of the frame side joint portion (not shown) on the front frame 3 side, the panel side joint portion 31 is detachably connected to each frame side connector (not shown) of the frame side joint portion.

  The image control board case 27 has a vertically long and substantially rectangular shape that is flat in the front-rear direction. As shown in FIGS. 3 to 8, for example, the first case body 33 and the second case body 34 made of transparent synthetic resin are engaged with each other. It is configured to be openable and closable via means 35 and sealing means 36. In the image control board case 27, an image control board 38 on which LSI and other heat generating electronic components 37 are mounted on the back side, and a heat sink 39 for heat dissipation of the electronic components 37 are accommodated. A cooling fan 40 is arranged side by side in the surface direction of the image control board 38.

  The image control board 38 includes a first control board 41 and a second control board 42. The first control board 41 and the second control board 42 are vertically arranged in the first case body 33 with opposing end portions stacked in the front-rear direction at a predetermined interval. The second control board 42 is fixed to the mounting boss 43 of the first case body 33 with mounting screws. The first control board 41 is fixed by an attachment boss 44 and a positioning protrusion 45 of the first case body 33 and an attachment screw 46 screwed to the attachment boss 44. At the overlapping portion of both control boards 41, 42, the mounting boss 44 and the positioning projection 45 for the first control board 41 are inserted through the through holes of the second control board 42. In addition, you may arrange | position so that both control boards 41 and 42 may not mutually overlap.

  A heat-generating electronic component 37 such as an LSI, a connector 47, and the like are mounted on the back side of the first control board 41, and connectors 48 and 49 are provided on the left and right sides of the second control board 42 in the middle. The electronic parts (not shown) are respectively mounted. In this embodiment, the heat-generating electronic component 37 such as LSI is thin and flat, and the amount of protrusion from the first control board 41 is small. Both control boards 41 and 42 are electrically connected via a connector 47 or the like.

  The first case body 33 has a vertically long rectangular shape whose front side is open, and as shown in FIGS. 3 and 4, a back wall portion 50 and an outer peripheral wall portion 51 integrally formed on the outer periphery of the back wall portion 50. In the first case body 33, the first and second control boards 41 and 42 are accommodated. The second case body 34 has a vertically long rectangular shape that constitutes a lid. The second case body 34 includes a front wall portion 52 and an inner peripheral wall portion 53 that is integrally formed on the outer periphery of the front wall portion 52. 1 case body 33 is fitted in the outer peripheral wall portion 51.

  The engaging means 35 is provided on the upper side of the inner peripheral wall portion 53 of the second case body 34, and is provided on the upper side of the outer peripheral wall portion 51 of the first case body 33. And an engaging portion 56 that is detachably engaged. The sealing means 36 includes a sealing protrusion 57 provided on the lower side of the inner peripheral wall portion 53 of the second case body 34, a lower portion of the outer peripheral wall portion 51 of the first case body 33, and both the case bodies 33 and 34. When the sealing projection 58 is cut so that both the case bodies 33 and 34 are opened, the sealing projection 58 has a sealing portion 58 with which the sealing projection 57 is engaged with the sealing projection 57 in a state where the sealing projection 58 is closed. A cut mark is left in the portion 58. The engaging means 35 and the sealing means 36 are provided at both left and right ends. The engaging means 35 and the sealing means 36 may be provided upside down with respect to the case bodies 33 and 34. When the image control board case 27 is long in the left-right direction, the upper and lower ends on both the left and right sides. It may be provided. Further, the engagement means 35 and the sealing means 36 may be one.

  In the back wall portion 50 of the first case body 33, openings 59 and 60 corresponding to the connectors 48 and 49 of the second control board 42, and openings that contact the second control board 42 at the outer periphery of the openings 59 and 60. Edge portions 59a and 60a are provided, and the connectors 48 and 49 of the second control board 42 are fitted in the openings 59 and 60, respectively.

  As shown in FIGS. 3 to 8, a positioning holding portion 62 for the intermediate heat sink 39 and an accommodation recess 63 for the cooling fan 40 are arranged side by side on the back wall portion 50 of the first case body 33. The heat sink 39 is disposed in the positioning holding portion 62, and the cooling fan 40 is disposed in the housing recess 63.

  In the back wall portion 50 of the first case body 33 facing the image control board 38, a plurality of exhaust ports 65 are formed in the bottom wall portion 64 of the housing recess 63 for the cooling fan 40, excluding the periphery of the housing recess 63. A large number of air inlets 66 are formed in the region corresponding to the image control board 38.

  Further, in the image control board case 27, as shown in FIG. 8, between the first control board 41 of the image control board 38 and the back wall portion 50 of the first case body 33, the intake ports 66 to the exhaust ports are provided. Maze-like cooling passages 67 to 69 reaching 65 are provided corresponding to substantially the entire area of the back wall portion 50, and the cooling air sucked from the intake port 66 is exhausted from the exhaust port 65 through the cooling passages 67 to 69. By doing so, the inside of the image control board case 27 is forcibly cooled.

  The cooling passages 67 to 69 are an exhaust passage 67 formed in the middle of the image control board case 27, intake passages 68 formed on both sides of the exhaust passage 67, and intake air connecting the intake passages 68 to the exhaust passage 67. And a communicative passage 69 that is shared with the back wall 50 by a partition wall 70 and the like.

  The exhaust passage 67 is disposed in the left-right direction in the middle of the vertical direction, and a partition wall 70 is provided between the exhaust passage 67 and the upper and lower intake passages 68 in the left-right direction. The exhaust passage 67 extends from one end portion in the left-right direction of the first case body 33 to the other end side, and a communication passage 69 that connects the upper and lower intake passages 68 to the exhaust passage 67 is provided in the up-down direction on the other end side. Yes.

  In addition, a notch 70 a is provided in the partition wall 70 between each intake passage 68 and the communication passage 69. Further, the partition wall 70 may contact the first control board 41. In this embodiment, however, a gap is provided between the partition wall 70 and the first control board 41 as shown in FIG. And the intake passage 68 are roughly divided so as to allow slight movement of the cooling air from the intake passage 68 to the exhaust passage 67 through the gap between the partition wall 70 and the first control board 41. Of course, the partition wall 70 may be brought into contact with or close to the first control board 41, and the partition wall 70 may substantially block between the exhaust passage 67 and the intake passage 68.

  As shown in FIGS. 3, 5, and 8, the housing recess 63 for the cooling fan 40 has a back wall portion 50 of the first case body 33 at the lower end of the exhaust passage 67 opposite to the communication passage 69. The positioning holding portion 62 for the heat sink 39 is disposed on the upper side between the housing recess 63 and the communication passage 69. Accordingly, the housing recess 63 and the communication passage 69 are disposed on the left and right sides of the first case body 33, and the positioning holding portion 62 is disposed therebetween.

  As shown in FIGS. 3 to 5 and 8, the housing recess 63 is formed in the back wall 50 in a recessed shape from the back side to the first control board 41 side, and is substantially formed in the bottom wall portion 64 at the recessed end. An arc-shaped exhaust port 65 is provided concentrically. The housing recess 63 is fitted with a cooling fan 40 from the back side through a plurality of reinforcing ribs that are also used for positioning, and is detachably fixed to the back wall 50 by screws 73 to the bottom wall 64.

  The cooling fan 40 includes a housing 74, a plurality of rotating blades 75 arranged in a circumferential direction in the housing 74, and a drive motor that is mounted at the center of the housing 74 and drives the rotating blades 75 from the inner peripheral side. 76, and the cooling air from the exhaust passage 67 is exhausted rearward through the exhaust port 65.

  As shown in FIGS. 3 and 5 to 7, the heat sink 39 has a rectangular main body 78 that abuts the electronic component 37 via a heat conductive layer 77, and protrudes from one side surface of the main body 78, and an exhaust passage 67. A plurality of (many) fins 79 are arranged in the horizontal direction along the flow of the cooling air inside, and the fins 79 are detachably fitted to the positioning holding part 62 from the front side for positioning and holding. The first case body 33 is sandwiched between the back wall portion 50 of the first case body 33 and the first control board 41. The heat conductive layer 77 is formed of a silicon rubber-based heat conductive sheet so as to prevent a gap between the electronic component 37 and the main body 78 of the heat sink 39 and improve heat conduction from the electronic component 37 to the heat sink 39. .

  As shown in FIGS. 3 and 5 to 7, the positioning holding part 62 protrudes from the back wall part 50 of the first case body 33 to the front side and surrounds the outer circumference of the heat sink 39 and has rectangular peripheral wall parts 70, 80, 81. Positioning projections 83 and 84 for positioning the heat sink 39 from the upper and lower sides and the left and right sides, and holding projections 86 for holding the heat sink 39 by sandwiching the left and right end portions of the fins 79 on both sides between the positioning projections 83 are provided. ing.

  The peripheral wall portions 70, 80, 81 are configured by a part of the upper and lower partition walls 70, the peripheral wall portion 80 of the housing recess 63, and a partition wall 81 provided between the upper and lower partition walls 70 on the communication path 69 side. The protruding height from the back wall 50 is low so that the cooling air flows between the fins 79 on both sides in the cooling air flow direction. The peripheral wall portion may be provided separately from the partition wall 70.

  The positioning protrusions 83 and 84 are plate-shaped or bar-shaped protrusions, which are in contact with the fins 79 of the heat sink 39 from above and below, from the left and right, so that the heat sink 39 in the positioning holding portion 62 is placed between the peripheral wall portions 70, 80 and 81. Positioning is performed with a gap of. A plurality of position projections 83 on both the upper and lower sides are arranged at the center and both ends of the heat sink 39 in the left-right direction. The holding projections 86 are arranged so as to sandwich the fins 79 between the positioning projections 83 arranged at the left and right ends of the plurality of positioning projections 83 on both the upper and lower sides.

  Among the intervals between the upper and lower positioning projections 83 and the holding projections 86, the interval between the lower positioning projections 83 and the holding projections 86 facilitates the heat sink 39 in the positioning holding unit 62 during assembly as shown in FIG. The lower fin 79 is clamped from both the upper and lower sides so that it can be temporarily fixed, and the distance between the upper positioning projection 83 and the holding projection 86 is loosely fitted so that the upper fin 79 can be easily fitted with respect to the lower side. ing.

  As shown in FIG. 8, a plurality of mounting bosses 44 and positioning projections 45 are arranged in the vicinity of the outer periphery of the positioning holding portion 62, and the first control is performed via the mounting bosses 44 and the positioning projections 45. The substrate 41 is fixed to the first case body 33. The mounting bosses 44 are disposed at both diagonal ends of the positioning holding portion 62, and the positioning protrusions 45 are disposed at both ends of the positioning holding portion 62 in the other diagonal direction, and are provided integrally with the upper and lower partition walls 70. The first control board 41 is positioned by positioning protrusions 44 and fixed by mounting screws 46 that are screwed into the mounting bosses 44.

  Note that the fin 79 of the heat sink 39 may be held by at least one of the upper and lower sides, such as holding the fin 79 by the upper positioning projection 83 and the holding projection 86. The holding portion for holding the fin 79 may be provided on the entire length of the fin 79 in the left-right direction or locally on an intermediate portion or the like. However, when the fin 79 is clamped from both sides by the positioning projection 83 and the holding projection 86, it is desirable that the fin 79 is clamped locally at the end surface within the plate thickness so that the contact area with the fin 79 is reduced.

  The positioning projection 83 is formed with an inclined guide surface 83a for guiding the fin 79 of the heat sink 39, and the fin 79 of the heat sink 39 is also provided on at least one of the holding projections 86 on the left and right sides. A guiding surface 86a for guiding is formed in an inclined shape.

  Between the heat sink 39 and the back wall portion 50 of the first case body 33, a first pressing means 88 and a second pressing means 89 for pressing the heat sink 39 toward the first control board 41 are interposed. The first pressing means 88 is constituted by a metal leaf spring, and the second pressing means 89 is made of a synthetic resin and is provided integrally with the back wall portion 50 of the first case body 33.

  As shown in FIGS. 3, 5, and 8, the first pressing means 88 has a contact portion 90 that is long in the vertical direction, and protrudes from the approximate center in the vertical direction of the contact portion 90 to the left and right sides and bends at an obtuse angle Elastic portions 91 that protrude from the upper and lower ends of the contact portion 90 to both the left and right sides, and the elastic portions 91 straddle the left and right end portions across the plurality of fins 79, The contact portion 90 is in contact with the back wall portion 50 of the first case body 33. The first pressing means 88 is positioned by positioning protrusions 83 and 84, a holding protrusion 86, and the like. The first pressing means 88 may be reversed in the front-rear direction.

  As shown in FIGS. 3 and 6 to 8, the second pressing means 89 includes a plurality of arm-like elastic portions provided integrally with the back wall portion 50 of the first case body 33 within the positioning holding portion 62. 93 and a protrusion 94 provided at the tip of the elastic portion 93 and a contact portion 94 that contacts the fin 79 of the heat sink 39 at the gap portion of the first pressing means 88.

  The elastic portion 93 extends from the upper and lower end sides of the positioning holding portion 62 to the center side, and the base side opposite to the contact portion 94 is integrally connected to the back wall portion 50 of the first case body 33 at the center side. A slit 95 is formed in the peripheral portion excluding. The abutting portion 94 abuts on the fin 79 through a notch portion between the abutting portion 90 of the first pressing means 88, the elastic portion 91, and the protruding portion 92.

  If the second pressing means 89 can press the heat sink 39 substantially evenly, the number of the elastic portions 93 and the contact portions 94 may be one, or two or more. In the case of a plurality, an odd number or an even number may be used. The slit 95 constitutes an intake port for cooling air. Either the first pressing unit 88 or the second pressing unit 89 may be used.

  In this embodiment, the cooling fan 40 always operates during the start-up of the pachinko machine, and the cooling air flows from the upper and lower intake passages 68 in the image control board case 27 through the communication passage 69 and the exhaust passage 67. In spite of the presence of the heat-generating electronic component 37 on the image control board 38, the cooling air can forcibly cool the electronic component 37 via the heat sink 39, and the electronic component 37 is overheated due to heat generation. Can be prevented.

  That is, when the cooling fan 40 is operated, the air in the exhaust passage 67 in the image control board case 27 is exhausted to the outside through the exhaust port 65 by the cooling fan 40, so that the inside of the image control board case 27 becomes negative pressure. Outside air is sucked into the image control board case 27 through a large number of air inlets 66 formed in the back wall portion 50 of the first case body 33. Then, the cooling air that has entered the image control board case 27 flows in the lateral direction along the upper and lower intake passages 68, and then merges with the exhaust passage 67 through the communication passage 69 and along the fins 79 of the heat sink 39. The air then flows laterally and is exhausted from the exhaust port 65 to the outside. Of course, some cooling air may flow from the intake passage 68 to the exhaust passage 67 through the gap between the partition wall 70 and the first control board 41.

  By arranging the heat sink 39 and the cooling fan 40 side by side in the plate surface direction of the first control board 41 in this way, the cooling air sucked from the intake port 66 by the rotation of the cooling fan 40 flows through the heat sink 39. As long as the configuration is adopted, the intake position is separated in the plate surface direction with respect to the exhaust position determined by the exhaust port 65, so that outside air is uniformly taken in from the intake ports 66 arranged in a wide range of the back wall portion 50 of the first case body 33. be able to. For this reason, cooling air flows through substantially the entire image control board case 27, and local heat accumulation in the image control board case 27 can be prevented.

  In particular, by arranging the intake passages 68 above and below the exhaust passage 67 and connecting the intake passages 68 to the exhaust passage 67 via the communication passages 69, the cooling passages 67 to 69 are arranged over substantially the entire image control board case 27. As a result, local heat accumulation can be prevented. Further, an exhaust port 65 is provided in the vicinity of the end portion of the first case body 33 of the image control board case 27, and the cooling fan 40 is disposed corresponding to the exhaust port 65, whereby an intake passage 68 is provided in the image control board case 27. Even when the cooling passages 67 to 69 including the exhaust passage 67 are provided, the cooling passages 67 to 69 are formed in the image control board case 27 as compared with the case where the exhaust port 65 is located at the approximate center of the back wall 50. It can be easily arranged over the entire area.

  In addition, the heat sink 39 that needs to be brought into contact with the electronic component 37 of the first control board 41 is disposed in the positioning holding portion 62 formed on the inner surface of the first case body 33, and the cooling fan 40 is disposed on the first case body 33. Since it is disposed in the housing recess 63 formed on the outer side surface, the cooling air after passing through the cooling fan 40 does not circulate in the image control board case 27, and heat in the image control board case 27 is not circulated. Clouding can be prevented.

  When the image control board case 27 is assembled, the first pressing member 89 is provided in the positioning holding portion 62 of the back wall 50 of the first case body 33 separately from the second pressing means 89 provided integrally with the back wall 50. The means 88 is fitted, and then the heat sink 39 is fitted and positioned and held in the positioning holding portion 62 so as to contact the pressing means 88 and 89.

  In this case, the fin 79 is positioned on the fin 79 side of the first case body 33 so that the fin 79 is inserted between the upper and lower and left and right positioning projections 83, 84 of the first case body 33. The heat sink 39 is fitted into 62. Further, when both end portions of the lower fin 79 of the heat sink 39 are inserted between the lower positioning projection 83 and the holding projection 86, the left and right end portions of the lower fin 79 become lower positioning projection 83 and holding projection 86. Therefore, the heat sink 39 can be prevented from moving in the positioning holding part 62. Of course, the heat sink 39 may be held so as not to move in the positioning holding portion 62 by fitting between the positioning projections 83 and 84 on the upper and lower sides and the left and right sides.

  After the heat sink 39 is housed in the positioning holding part 62, the second control board 42 is mounted in the first case body 33 via the mounting boss 43 and the like, and the first case is similarly connected via the mounting boss 44 and the mounting screw 46 and the like. The first control board 41 is attached in the body 33.

  When the first control board 41 is fixed at a predetermined position with the mounting screw 46 or the like and the electronic component 37 is brought into contact with the main body 78 of the heat sink 39 via the heat conductive layer 77, the heat sink 39 is pressed by the pressing means 88, 89. The heat sink 39 can be clamped from both sides by the first control board 41 and the back wall part 50 of the first case body 33 because it is pushed into the positioning and holding part 62 against this. Thereafter, the first case body 33 and the second case body 34 are coupled in a closed state via the engaging means 35 and the sealing means 36.

  The cooling fan 40 is attached from the outside into the housing recess 63 of the first case body 33. However, if the drive motor 76 is connected to the second control board 42 and the like, the case before the two case bodies 33 and 34 are joined together. It may be attached at any time.

  As described above, the positioning holder 62 is provided on the inner surface of the first case body 33, and the heat sink 39 positioned and held by the positioning holder 62 is sandwiched between the first case body 33 and the first control board 41, whereby the heat sink Since the step of fixing 39 in advance is unnecessary and assembly and disassembly can be facilitated, the manufacturing cost can be reduced, and the heat sink 39 that has been removed can be reused and the electronic component 37 to be cooled on the first control board 41 can be reused. There is an advantage that confirmation can be performed easily.

  Further, since it is not necessary to provide the heat sink 39 with a mounting portion that protrudes outward from the region where the fin 79 is disposed, the structure of the heat sink 39 can be reduced in size and simplified, and the proportion of the region where the fin 79 is disposed in the entire heat sink 39 The cooling efficiency can be improved while reducing the size of the heat sink 39. Further, since no attachment portion is required for the heat sink 39, there is an advantage that the arrangement area for arranging the other electronic component 37 and the printed wiring on the first control board 41 can be widened.

  Further, between the first case body 33 and the heat sink 39, there are pressing means 88 and 89 for pressing the heat sink 39 toward the first control board 41, so that the first case body 33 and the first control board 41 can connect the heat sink. The heat sink 39 can be pressed against the electronic component 37 by the pressing force of the pressing means 88 and 89, and the heat of the electronic component 37 can be efficiently dissipated through the heat sink 39, despite the structure that holds the 39. Is possible. Since the heat sink 39 is pressed against the electronic component 37 by using the first pressing means 88 having a metal plate property and the second pressing means 89 integrated with the first case body 33, it is compared with either case. Thus, a sufficient pressing force can be secured without difficulty, and the heat sink 39 can be reliably pressed against the electronic component 37.

  The positioning holder 62 of the first case body 33 is in cooling passages 67 to 69 through which cooling air flows. The fin 79 side of the heat sink 39 is fitted into the positioning holder 62 so that the cooling air can pass between the fins 79. Therefore, the heat sink 39 can be efficiently cooled by the cooling air flowing through the cooling passages 67 to 69. The second pressing means 89 has a plurality of elastic portions 93 formed integrally with the first case body 33 through the slits 95, and the slits 95 form the cooling air intake ports 66. Outside air can be sucked from the bottom side of the positioning and holding part 62, and heat accumulation on the bottom side of the positioning and holding part 62 can also be prevented.

  Moreover, since the positioning holding portion 62 has a holding projection 86 that detachably holds at least one fin 79 of the heat sink 39, the movement of the heat sink 39 in the positioning holding portion 62 can be prevented, and during assembly, etc. The heat sink 39 does not fall off from the positioning holder 62, and the subsequent handling can be easily performed.

  The positioning holding portion 62 has peripheral wall portions 70, 80, 81 surrounding the outer periphery of the heat sink 39, and a predetermined gap is provided between the peripheral wall portions 70, 80, 81 inside the peripheral wall portions 70, 80, 81. Since the positioning projections 83 and 84 for positioning the heat sink 39 are provided, the fin 79 side of the heat sink 39 in the positioning holding portion 62 is secured while ensuring the strength of the first case body 33 in the peripheral portion of the positioning holding portion 62. Cooling air can be flowed through.

  There are partition walls 70 on both the upper and lower sides around the positioning holding portion 62 of the first case body 33, and there are mounting bosses 44 at one diagonal end of the positioning holding portion 62 and positioning at the other diagonal end. There is a protrusion 45, and the first control board 41 is fixed to the first case body 33 through the mounting boss 44 and the positioning protrusion 45, so that the first case body 33 and the first control board 41 are not connected. Although the heat sink 39 and the pressing means 88 and 89 are provided, either the first case body 33 or the first control board 41 is not elastically deformed, and the heat sink 39 is securely held. Can do.

  Since the heat sink 39 and the cooling fan 40 are arranged side by side in the direction of the plate surface of the first control board 41, the overall thickness of the image control board case 27 is larger than when the heat sink 39 and the cooling fan 40 are arranged in an overlapping manner. The thickness can be reduced. Therefore, even when mounting in a place where the thickness of the entire substrate case is unavoidable, it is not necessary to keep the fins 79 of the heat sink 39 low in height, thereby preventing the heat sink 39 from reducing the heat dissipation effect as much as possible. be able to.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, in the embodiment, the image control board case 27 is exemplified as the board case. However, various substrate other than the image control board case 27 may be used as long as the board case accommodates the control board on which the heat generating electronic component 37 is mounted. The same can be applied to the substrate case. In addition to being mounted vertically in the vertical mounting location, the board case may be mounted horizontally in the vertical mounting location, or mounted in the front-rear or left-right direction on the upper or lower surface of the horizontal mounting location. Also good.

  The substrate case is usually configured by connecting the first case body 33 and the second case body 34 so as to be openable and closable, but may be a combination of three or more case bodies, or in the case of a substrate case in which one side is open. If so, it may be constituted by one case body. Moreover, although the 1st control board 41 and the 2nd control board 42 are accommodated in a board | substrate case, an internal control board may be one and three or more may be sufficient as it.

  The exothermic electronic component 37 is generally a semiconductor element such as an LSI, but may be other than the semiconductor element. If the heat-generating electronic component 37 is a semiconductor element such as a rectangular LSI, the heat sink 39 uses a rectangular shape corresponding to the shape of the electronic component 37, but does not necessarily have to be rectangular, What is necessary is just to use a thing of a suitable shape according to the shape of the electronic component 37. FIG. In that case, the positioning holding part 62 formed in the first case body 33 may be shaped corresponding to the heat sink 39.

  When the pressing means 88 and 89 are provided between the case body 33 and the heat sink 39, an elastic wire or the like is bent and inserted between the fins 79, and the bottom portion of the positioning holding portion 62 of the first case body 33. You may employ | adopt things other than the 1st press means 88 and the 2nd press means 89, such as interposing between the main-body parts 78. However, it is desirable not to disturb the flow of cooling air between the fins 79.

  It is sufficient that the positioning holding part 62 is in the cooling passages 67 to 69 through which cooling air flows. However, in terms of the cooling efficiency of the heat sink 39, a large amount of air sucked from a wide range of intake ports 66 is exemplified as in the embodiment. It is desirable to arrange in the exhaust passage 67 through which cooling air flows. Further, by bringing the partition wall 70 into contact with the first control board 41, the lower side of the heat sink 39, that is, between the cooling fan 40 and the heat sink 39, the exhaust passage 67 and the intake passage 68 are partitioned, and the lower side of the heat sink 39. On the side, the cooling air may not flow into the exhaust passage 67. In this case, most of the cooling air can pass through the heat sink 39.

  The positioning and holding of the heat sink 39 in the positioning and holding part 62 is sufficient even if the heat sink 39 is loosely fitted in the positioning and holding part 62 through some play, but it is in contact with the end face of the outer periphery of the heat sink 39. A plurality of positioning projections 83, 84 may be arranged, and the heat sink 39 may be pushed and fixed between the positioning projections 83, 84.

  The positioning protrusions 83 and 84 generally position the heat sink 39. The movement of the heat sink 39 may be such that a part of the fin 79 is sandwiched from both sides by a part of the positioning protrusions 83 and the holding protrusions 86 or the pair of holding protrusions 86. Good. When the second pressing means 89 is not provided at the bottom of the positioning holding part 62, it is desirable to provide the intake port 66 at the bottom.

  The positioning holding portion 62 has a structure having peripheral wall portions 70, 80, 81 on the outer periphery. However, if a predetermined strength can be ensured by providing a reinforcing rib on the back surface of the back wall portion 50, the peripheral wall portions 70, 80, 81 are provided. May be omitted. In particular, the partition wall 81 in the exhaust passage 67 may be omitted. Even in the case where the partition wall 81 is provided, it is desirable that the height be approximately half of the height of the fins 79 or less so as not to hinder the flow of cooling air between the fins 79.

  Although the heat sink 39 and the cooling fan 40 are arranged side by side in the plate surface direction of the first control board 41, they may be arranged side by side in the vertical direction in addition to the arrangement in the horizontal direction. The cooling fan 40 is preferably disposed near the exhaust port 65 side of the cooling passages 67 to 69, particularly facing the exhaust port 65, and the heat sink 39 is preferably disposed near the upper side thereof. If so, the cooling fan 40 may be arranged at a position away from the exhaust port 65, and the heat sink 39 may be arranged at a position away from the cooling fan 40 toward the upper side.

  The positioning holding portion 62 for the heat sink 39 and the accommodation recess 63 for the cooling fan 40 may be arranged side by side on the inner surface of the first case body 33. Furthermore, although the embodiment illustrates the case where the present invention is applied to a pachinko machine, it can be similarly applied to various game machines including a slot machine as well as a ball game machine such as an arrange ball machine. Needless to say.

27 Image control board case 33 First case body 37 Electronic component 39 Heat sink 40 Cooling fan 41 Image control board 44 Mounting boss 62 Positioning holding part 63 Housing recess 65 Exhaust port 66 Intake port 67 Exhaust passage (cooling passage)
68 Air intake passage (cooling passage)
69 Communication passage (cooling passage)
70 Bulkhead (peripheral wall)
79 Fin 80 Perimeter wall portion 81 Partition wall (peripheral wall portion)
83, 84 Positioning projection 86 Holding projection 88 First pressing means 89 Second pressing means 93 Elastic portion

Claims (4)

The exothermic electronic components are loaded board accommodated in the substrate cases, the heat sink for radiating said electronic components heat in substrate cases, the heat sink is cooled by the cooling air cooling in the gaming machine that includes a fan, the heat sink and the cooling fan is arranged in the surface direction of the base plate, the cooling fan is the substrate case of the case body outer surface formed accommodating recess Moreover, the heat sink is disposed in a positioning holding portion formed on the inner side surface of the case body, respectively . The cooling communication passage for exhausting the cooling air which is sucked into the air inlet or al the substrate cases the scan to the exhaust port or found outside via the substrate cases provided, the cooling in the vicinity of the exhaust port side of the cooling passage channel the fan, the gaming machine according to claim 1, characterized in that the heat sink on the upstream side of the cooling fan respectively disposed. The gaming machine according to claim 2, characterized in that a said cooling fan in response to the exhaust port provided in the end portion of the front listen over scan body. The cooling communication passage between the casing opposite to the base plate and the substrate has an exhaust passage path of the exhaust port side and the intake passage line of the intake port side, in the exhaust passage path the gaming machine according to claim 2, wherein the facing to the exhaust port to place the cooling fan and the heat sink respectively disposed on the upstream side of the cooling fan of the exhaust passage path.

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