JP2013018635A - Control device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control device of an elevator that improves the cooling performance of a heating element.SOLUTION: The control device of the elevator includes: a case having a first wall and a second wall adjacent to the first wall; a fan for sending an air flow into the case so that the air flow hits the first wall; a first heating element provided near the first wall in the case; a second heating element provided at a position farther than the first heating element viewing from the first wall in the case; a first exhaust port that is formed on the second wall near the first heating element and exhausts the air flow to the outside of the case; and a second exhaust port that is formed on the second wall near the second heating element of which the opening area is larger than the first exhaust port, and that exhausts the air flow to the outside of the case.

Description

  Embodiments described herein relate generally to an elevator control apparatus having a heating element.

  There is an elevator control panel provided with a duct for guiding the exhaust air after cooling the inverter unit to the regenerative resistance unit.

JP 2005-176488 A

On the other hand, the cooling performance of the heating element represented by regenerative resistance still has room for improvement.
It is an object of the present invention to provide an elevator control device with improved heating element cooling performance.

  The elevator control apparatus according to the embodiment includes a case having a first wall portion and a second wall portion adjacent to the first wall portion, and an air flow strikes the first wall portion. A fan for sending an air flow into the case; a first heating element provided in the case in the vicinity of the first wall; and the first inside the case as viewed from the first wall. A second heating element provided at a position farther than the first heating element, a first heating element provided on the second wall portion in the vicinity of the first heating element, and discharging the air flow to the outside of the case. An exhaust port of the first exhaust port and an opening area of the second wall near the second heating element that is larger than an opening area of the first exhaust port, and discharges the air flow to the outside of the case. And an exhaust port.

The front view which showed the elevator concerning 1st Embodiment. Sectional drawing which expanded and showed a part of control panel shown in FIG. The perspective view which expanded and showed the semiconductor switching element and fin of the control panel shown in FIG. Sectional drawing along the horizontal direction (horizontal direction) of the overhang | projection part of the case of the control panel shown in FIG. Sectional drawing along the vertical direction (vertical direction) of the overhang | projection part of the case of the control panel shown in FIG. Sectional drawing along the horizontal direction (horizontal direction) of the overhang | projection part of the control panel of the elevator concerning 2nd Embodiment. Sectional drawing along the vertical direction (vertical direction) of the overhang | projection part of the case of the control panel shown in FIG. Sectional drawing which expanded and showed a part of control panel of the elevator concerning 3rd Embodiment. Sectional drawing which expanded and showed a part of control panel of the elevator concerning 4th Embodiment. Sectional drawing along the vertical direction (vertical direction) of the overhang | projection part of the case of the control panel shown in FIG. Sectional drawing which expanded and showed a part of control panel of the elevator concerning 5th Embodiment. Sectional drawing along the vertical direction (vertical direction) of the overhang | projection part of the case of the control panel shown in FIG. Sectional drawing which expanded and showed a part of control panel of the elevator concerning 6th Embodiment. Sectional drawing along the horizontal direction (horizontal direction) of the overhang | projection part of the case of the control panel shown in FIG.

  A first embodiment of an elevator to which an elevator control device is applied will be described with reference to FIGS. 1 to 5.

  As shown in FIGS. 1 to 3, the elevator 11 is provided in a hoistway 12, a car 13 that moves up and down in the hoistway 12, a machine room 14 provided above the hoistway 12, and the machine room 14. A main rope 18 that is wound around the hoisting machine 15 and the control panel 16, the main sheave 17 of the hoisting machine 15 and fixed to the car 13 at one end, and a counterweight 21 fixed to the other end of the main rope 18. A main rail that guides the raising and lowering of the car 13, a counter rail that guides the raising and lowering of the counterweight 21, a tail cord 22 that supplies a control signal and electric power to the car 13, and a counterweight 21 and the car 13. A compensating rope 23 connected to each other, and a compensating sheave 24 around which the compensating rope 23 is wound. Eteiru.

  The control panel 16 is an example of an elevator control device, and comprehensively controls the entire elevator. As shown in FIGS. 2 and 3, the control panel 16 includes a case 27 having a main body portion 25 and an overhang portion 26, and a metal mounting base plate (pedestal) 28 housed in the main body portion 25 of the case 27. And the control circuit unit 31, the semiconductor switching element 33 mounted on the mounting base plate 28 via the cooling fins 32, the semiconductor switching element 33 is cooled, and an air flow is applied to the protruding portion 26 of the case 27. A fan 34 to be sent, a duct portion 35 for guiding the air flow of the fan 34 toward the overhanging portion 26, a plurality of first heating elements 36 and a plurality of second heating elements housed in the overhanging portion 26 of the case 27. The heating element 37 is provided. At this time, since the areas of the first exhaust port 44 and the plurality of second exhaust ports 45 are relatively small with respect to the flow rate of the air sent from the fan 34, the inside of the overhang portion 26 is 1 The pressure is maintained at a pressure slightly higher than the atmospheric pressure.

  As shown in FIG. 5, the fan 34 can send an air flow into the case 27 so that the air flow hits a top plate 41 (first wall portion) of the case 27 described later. Further, the fan 34 cools the semiconductor switching element 33 by passing air between the fins 32 as shown in FIG.

  In the present embodiment, the first heating element 36 and the second heating element 37 are constituted by regenerative resistors, for example, but are not limited thereto. The first heating element 36 and the second heating element 37 may be anything as long as they are objects to be cooled, and may be a means that can store electric power, such as a battery. Further, the regenerative resistor is used, for example, to prevent the generated current from acting as the generator 15 from flowing backward to the power source side when the moving car 13 is stopped. For example, it is often provided on the control panel 16 or the like.

  The first heating element 36 and the second heating element 37 are in the shape of a square bar with a heating wire embedded therein. As shown in FIG. 5, in the present embodiment, two first heating elements 36 are arranged in the vicinity of the top plate 41. In addition, two second heating elements 37 are arranged at positions farther from the first heating element 36 when viewed from the top plate 41 (first wall portion). As shown in FIGS. 4 and 5, the first heating element 36 and the second heating element 37 are passed between a pair of brackets 42 and fixed to the protruding portion 26 of the case 27. The 1st heat generating body 36 and the 2nd heat generating body 37 are each arrange | positioned in the position which overlapped in the perpendicular direction (up-down direction).

  As shown in FIG. 4, the first heating element 36 and the second heating element 37 are provided at positions away from the fan 34 when viewed from the top plate 41 (first wall portion). Thus, compared to the case where the first heating element 36 and the second heating element 37 are provided immediately above the fan 34, the first heating element 36 and the second heating element 37 are cooled to the same extent. These can be cooled uniformly. For this reason, it is prevented that the temperature difference arises in these and the lifetime of the 1st heat generating body 36 and the 2nd heat generating body 37 (regenerative resistance) is prevented from shortening.

  As illustrated in FIG. 5, the projecting portion 26 of the case 27 includes an upper plate 41 that is an example of a first wall portion, and an example of a second wall portion that is adjacent to the first wall portion (top plate 41). A front plate 43, a bracket 42 (heater fixing plate) for supporting the first heating element 36 and the second heating element 37, and a plurality of first exhaust ports 44 provided in the front plate 43. And a plurality of second exhaust ports 45. The plurality of first exhaust ports 44 are provided near the top plate 41 of the front plate 43, that is, in the vicinity of the first heating element 36, and are mainly used for cooling the first heating element 36. The discharged air flow is discharged to the outside of the case 27. The plurality of second exhaust ports 45 are provided in the vicinity of the second heating element 37 at a position farther from the first exhaust port 44 when viewed from the top plate 41, and mainly cool the second heating element 37. The air flow used for this is discharged to the outside of the case 27.

  The total opening area of all the second exhaust ports 45 is larger than the total opening area of all the first exhaust ports 44. More specifically, the ratio of the opening area of the second exhaust port 45 and the opening area of the first exhaust port 44 is, for example, 2: 1 (see FIG. 2).

  With reference to FIG. 5, the cooling effect | action of the 1st heat generating body 36 and the 2nd heat generating body 37 in the control panel 16 of this embodiment is demonstrated.

  Most of the air flow sent from the fan 34 into the case 27 (the overhanging portion 26) first goes straight and hits the top plate 41 (first wall portion). Thereafter, the air flow changes direction and flows in a direction in which the front plate 43 (second wall portion) is present, and mainly cools the first heating element 36 and heats the case 27 together with heat from the first exhaust port 44. It is discharged outside. In addition, a part of the airflow that hits the top plate 41 (first wall portion) flows in a direction (obliquely downward) of the second heating element 37 to cool the second heating element 37. Similarly, the air flow sent from the fan 34 that has branched without hitting the top plate 41 (first wall) is directed to the second heat generating body 37 in the direction of the second heat generating body 37. Cool down. In the present embodiment, since the opening ratio between the first exhaust port 44 and the second exhaust port 45 is 1: 2, the air flow once directed to the first heating element 36 is directly used as the first exhaust. Without being discharged from the port 44, the heat is positively discharged from the second exhaust port 45 together with the heat, and the cooling of the second heating element 37 in the middle is promoted.

  According to the present embodiment, the elevator control device includes a case 27 having a first wall portion and a second wall portion adjacent to the first wall portion, and an air flow in the first wall portion. A fan 34 that sends an air flow to the inside of the case 27 so as to hit, a first heating element 36 provided in the vicinity of the first wall portion inside the case 27, and a case 27 viewed from the first wall portion inside the case 27. A second heating element 37 provided at a position farther than the first heating element 36 and a second wall portion in the vicinity of the first heating element 36 to discharge an air flow to the outside of the case 27. The first exhaust port 44 and the second heating element 37 are provided near the second wall portion so as to be larger than the opening area of the first exhaust port 44, and the air flow is discharged to the outside of the case 27. 2 exhaust ports 45.

  In general, when the layout is such that the air flow from the fan 34 once strikes the first wall, the air flow tends to flow along the first wall, and is mainly in the vicinity of the first wall. The first heating element 36 is cooled, and the second heating element 37 separated from the first wall portion may not be cooled well. According to the above configuration, since the opening area of the second exhaust port 45 in the vicinity of the second heating element 37 is increased, more air is supplied to the outside of the case 27 at the second exhaust port 45. Can be discharged. As a result, the air flow once directed in the direction in which the first heating element 36 is present (first exhaust port 44) can be diverted in the direction in which the second heating element 37 is present (second exhaust port 45). The first heating element 36 and the second heating element 37 can be uniformly cooled. As a result, when the first heating element 36 and the second heating element 37 are constituted by regenerative resistors, they can have a longer life and the first heating element 36 and the second heating element 37 can be installed. It is possible to prevent a situation in which the lifetime differs depending on the position.

  Next, a second embodiment of the elevator 11 to which the elevator control device is applied will be described with reference to FIGS. 6 and 7. Parts different from the first embodiment will be mainly described, and portions common to the first embodiment will be denoted by common reference numerals and description thereof will be omitted.

  As shown in FIG. 7, two first heating elements 36 are arranged in the vicinity of the top plate 41. In addition, two second heating elements 37 are arranged at positions farther from the first heating element 36 when viewed from the top plate 41 (first wall portion). The 1st heat generating body 36 and the 2nd heat generating body 37 are provided in the position (position which does not overlap in the up-and-down direction) mutually separated in the horizontal direction (horizontal direction). As is apparent from FIG. 7, the first heating element 36 and the second heating element 37 are staggered when viewed from the lateral direction. With this structure, the upper first heating element 36 is not warmed by the second heating element 37 directly below, and variations in temperature among the heating elements are prevented.

  The plurality of first exhaust ports 44 are provided near the top plate 41 of the front plate 43, that is, in the vicinity of the first heating element 36, and are mainly used for cooling the first heating element 36. The discharged air flow is discharged to the outside of the case 27. The plurality of second exhaust ports 45 are provided in the front plate 43 in the vicinity of the second heating element 37 at a position farther from the first exhaust port 44 when viewed from the top plate 41, and mainly the second exhaust port 45. The air flow used for cooling the heating element 37 is discharged to the outside of the case 27. The ratio of the total opening area of all the second exhaust ports 45 and the total opening area of all the first exhaust ports 44 is, for example, 2: 1 as in the first embodiment.

  With reference to FIG. 7, the cooling effect | action of the 1st heat generating body 36 and the 2nd heat generating body 37 in the control panel of this embodiment is demonstrated.

  Most of the air flow sent from the fan 34 into the case 27 (the overhang portion 26) advances straight as it is and hits the top plate 41 (first wall portion). Thereafter, the air flow changes direction and flows in a direction in which the front plate 43 (second wall portion) is present, and mainly cools the first heating element 36 and heats the case 27 together with heat from the first exhaust port 44. It is discharged outside. In addition, a part of the airflow that hits the top plate 41 (first wall portion) flows in a direction (obliquely downward) of the second heating element 37 to cool the second heating element 37. At this time, since the first heating element 36 and the second heating element 37 are alternately arranged, the first heating element 36 and the second heating element 37 are compared with the first embodiment. The gap between them increases, and the flow rate of air passing through the gap increases, so that the cooling of the second heating element 37 is promoted. Similarly, the air flow sent from the fan 34 that has branched without hitting the top plate 41 (first wall) is directed to the second heat generating body 37 in the direction of the second heat generating body 37. Cool down. The air flow that has cooled the second heating element 37 is mainly discharged to the outside of the case 27 through the second exhaust port 45.

  According to the second embodiment, the first heating element 36 and the second heating element 37 are provided at positions separated from each other in the lateral direction. According to this configuration, for example, the upper heating element is not warmed by the lower heating element. In addition, since the first heating element 36 close to the first wall portion and the second heating element 37 far from the second wall portion are arranged alternately, the first heating element 36 is arranged. And the second heating element 37 become larger, and a large amount of airflow can be passed through this gap. Also by this, cooling of the 2nd heat generating body 37 far from the 2nd wall part can be accelerated | stimulated, and the 1st heat generating body 36 and the 2nd heat generating body 37 can be cooled uniformly. Further, according to the present embodiment, even if the first heating element 36 and the second heating element 37 are arranged densely, the cooling performance is not impaired. The space required for the installation of 16 can be reduced.

  Then, with reference to FIG. 8, 3rd Embodiment of the elevator 11 to which the control apparatus of an elevator is applied is described. Parts different from those of the second embodiment will be mainly described, and portions common to the second embodiment will be denoted by common reference numerals and description thereof will be omitted.

  Two first heating elements 36 are arranged in the vicinity of the top plate 41. In addition, two second heating elements 37 are arranged at positions farther from the first heating element 36 when viewed from the top plate 41 (first wall portion). Similar to the second embodiment, the first heat generating element 36 and the second heat generating element 37 are provided at positions separated from each other (positions that do not overlap in the vertical direction) in the horizontal direction (horizontal direction). In other words, the first heating element 36 and the second heating element 37 are staggered when viewed from the lateral direction.

  The plurality of first exhaust ports 44 are provided near the top plate 41 of the front plate 43, that is, in the vicinity of the first heating element 36, and are mainly used for cooling the first heating element 36. The discharged air flow is discharged to the outside of the case 27. The plurality of second exhaust ports 45 are provided in the front plate 43 in the vicinity of the second heating element 37 at a position farther from the first exhaust port 44 when viewed from the top plate 41, and mainly the second exhaust port 45. The air flow used for cooling the heating element 37 is discharged to the outside of the case 27. Unlike the second embodiment, the ratio of the total opening area of all the second exhaust ports 45 and the total opening area of all the first exhaust ports 44 is, for example, 5: 3.

  In the present embodiment, the first exhaust port 44 is provided at a position overlapping the first heating element 36 when viewed from the front plate 43 (second wall), that is, when viewed from the front. The second exhaust port 45 is provided at a position overlapping the second heating element 37 when viewed from the front plate 43 (second wall portion), that is, when viewed from the front direction.

  The cooling operation of the first heating element 36 and the second heating element 37 in the control panel 16 of the present embodiment will be described.

  Most of the air flow sent from the fan 34 into the case 27 (the overhanging portion 26) first advances straight as it is and hits the top plate 41 (first wall portion). Thereafter, the air flow changes direction and flows in a direction in which the front plate 43 (second wall portion) is present, and mainly cools the first heating element 36 and heats the case 27 together with heat from the first exhaust port 44. It is discharged outside. At this time, since the first exhaust port 44 is provided at a position where it overlaps the first heating element 36, the air flow discharged from the first exhaust port 44 is divided above and below the first heating element 36. Then, the first heating element 36 passes through the vicinity of the first heating element 36. For this reason, in this embodiment, the cooling efficiency of the 1st heat generating body 36 is improving rather than 2nd Embodiment.

  In addition, a part of the airflow that hits the top plate 41 (first wall portion) flows in a direction (obliquely downward) of the second heating element 37 to cool the second heating element 37. Similarly, the air flow sent from the fan 34 that has branched without hitting the top plate 41 (first wall) is directed to the second heat generating body 37 in the direction of the second heat generating body 37. Cool down. At this time, since the second exhaust port 45 is provided at a position overlapping the second heat generating body 37, the air flow discharged from the second exhaust port 45 is divided above and below the second heat generating body 37. Then, the second heat generating body 37 is passed in the vicinity of the second heat generating body 37 in the form of being wound. For this reason, in this embodiment, the cooling efficiency of the 2nd heat generating body 37 is improving rather than 2nd Embodiment.

  According to the third embodiment, the first exhaust port 44 is provided at a position overlapping the first heating element 36 when viewed from the second wall portion, and the second exhaust port 45 is provided with the second exhaust port 45. It is provided at a position overlapping the second heating element 37 when viewed from the wall. According to this configuration, the cooling efficiency of the first heating element 36 and the second heating element 37 can be improved particularly in the vicinity of the second wall portion. In general, since the second wall portion where the first exhaust port 44 and the second exhaust port 45 are provided is located far from the cooling air supply source (fan 34), the cooling efficiency tends to be reduced in this vicinity. . According to the present embodiment, since the cooling efficiency of the first heating element 36 and the second heating element 37 in the vicinity of the second wall portion can be improved, the heating element located near the cooling air supply source and The first heating element 36 and the second heating element 37 in the vicinity of the second wall can be cooled to the same extent. Thereby, it is possible to prevent the cooling efficiency from varying depending on the position of the heating element and to cool them uniformly.

  Next, a fourth embodiment of the elevator 11 to which the elevator control device is applied will be described with reference to FIGS. 9 and 10. Parts different from the first embodiment will be mainly described, and portions common to the first embodiment will be denoted by common reference numerals and description thereof will be omitted.

  The control panel 16 includes a plurality of first heating elements 36 housed in the overhanging portion 26 of the case 27, a plurality of second heating elements 37 housed in the overhanging portion 26 of the case 27, and a case A plurality of third heating elements 46 accommodated in the 27 overhanging portions 26. The first to third heating elements 36, 37, and 46 are arranged in a so-called three-stage stack.

  As shown in FIG. 10, two first heating elements 36 are arranged in the vicinity of the top plate 41. In addition, two second heating elements 37 are arranged at positions farther from the first heating element 36 when viewed from the top plate 41 (first wall portion). Two third heating elements 46 are arranged at positions farther from the second heating element 37 when viewed from the top plate 41 (first wall portion).

  The plurality of first exhaust ports 44 are provided near the top plate 41 of the front plate 43, that is, in the vicinity of the first heating element 36, and are mainly used for cooling the first heating element 36. The discharged air flow is discharged to the outside of the case 27. The plurality of second exhaust ports 45 are provided in the front plate 43 in the vicinity of the second heating element 37 at a position farther from the first exhaust port 44 when viewed from the top plate 41, and mainly the second exhaust port 45. The air flow used for cooling the heating element 37 is discharged to the outside of the case 27. The plurality of third exhaust ports 47 are provided in the front plate 43 in the vicinity of the third heating element 46 at a position farther from the second exhaust port 45 when viewed from the top plate 41, and mainly the third exhaust port 47. The air flow used for cooling the heating element 46 is discharged to the outside of the case 27.

  The ratio of the sum of the opening areas of all the first exhaust ports 44, the sum of the opening areas of all the second exhaust ports 45, and the sum of the opening areas of all the third exhaust ports 47 is, for example, 3: 4: 5. That is, the opening area of the second exhaust port 45 is larger than the opening area of the first exhaust port 44, and the opening area of the third exhaust port 47 is larger than the opening area of the second exhaust port 45. ing.

  With reference to FIG. 10, the cooling effect | action of the 1st heat generating body 36 of this embodiment, the 2nd heat generating body 37, and the 3rd heat generating body 46 is demonstrated.

  Most of the air flow sent from the fan 34 into the case 27 (an overhang portion) first proceeds straight as it is and hits the top plate 41 (first wall portion). Thereafter, the air flow changes direction and flows in a direction in which the front plate 43 (second wall portion) is present, and the case 27 together with heat from the first exhaust port 44 while mainly cooling the first heating element 36. Is discharged outside. In addition, a part of the air flow that hits the top plate 41 (first wall portion) flows in a direction (obliquely downward direction) where the second heating element 37 and the third heating element 46 exist, and the second The heating element 37 and the third heating element 46 are cooled. Similarly, of the air flow sent from the fan 34, the air flow branched without hitting the top plate 41 (first wall portion) is directed toward the second heating element 37 and the third heating element 46. Then, the second heating element 37 and the third heating element 46 are cooled respectively. In the present embodiment, the opening ratio of the first exhaust port 44, the second exhaust port 45, and the third exhaust port 47 is 3: 4: 5. The air flow is not exhausted as it is from the first exhaust port 44 but is positively exhausted at the second exhaust port 45 and the third exhaust port 47, so the second heating element in the middle 37, cooling of the third heating element 46 is promoted.

  According to the fourth embodiment, the elevator control device includes a case 27 having a first wall portion and a second wall portion adjacent to the first wall portion, and air in the first wall portion. A fan 34 for sending an air flow to the inside of the case 27 so as to hit the flow, a first heating element 36 provided in the vicinity of the first wall portion inside the case 27, and a first wall portion inside the case 27 The second heating element 37 provided at a position farther from the first heating element 36 when viewed from the top, and the second heating element 37 provided at a position farther from the second heating element 37 when viewed from the first wall inside the case 27. A third heating element 46, a first exhaust port 44 provided in the second wall portion in the vicinity of the first heating element 36, for discharging an air flow to the outside of the case 27, and a second heating element 37 It is provided in the second wall portion in the vicinity that is larger than the opening area of the first exhaust port 44 and discharges the airflow to the outside of the case 27 A second exhaust port 45 is provided in the second wall portion in the vicinity of the second exhaust port 45 and in the vicinity of the third heating element 46 so as to be larger than the opening area of the second exhaust port 45, and discharges an air flow to the outside of the case 27. And an exhaust port 47.

  According to the above configuration, the opening area of the second exhaust port 45 in the vicinity of the second heat generating member 37 and the third exhaust port 47 in the vicinity of the third heat generating member 46 is increased. Therefore, more air can be discharged to the outside of the case 27 at the second exhaust port 45 and the third exhaust port 47. As a result, the air flow once directed in the direction in which the first heating element 36 is present (first exhaust port 44) is changed into the direction in which the second heating element 37 and the third heating element 46 are present (second exhaust port 45). , The first heat generating element 36, the second heat generating element 37, and the third heat generating element 46 can be uniformly cooled.

  Next, a fifth embodiment of an elevator to which the elevator control device is applied will be described with reference to FIGS. 11 and 12. Parts different from the fourth embodiment will be mainly described, and portions common to the fourth embodiment will be denoted by common reference numerals and description thereof will be omitted.

  As shown in FIG. 12, two first heating elements 36 are arranged in the vicinity of the top plate 41. In addition, two second heating elements 37 are arranged at positions farther from the first heating element 36 when viewed from the top plate 41 (first wall portion). Two third heating elements 46 are arranged at positions farther from the second heating element 37 when viewed from the top plate 41 (first wall portion). The control panel 16 further includes a wind control member 51 provided at a position outside the fan 34 and the duct portion 35 in the overhang portion 26.

  The plurality of first exhaust ports 44 are provided near the top plate 41 of the front plate 43, that is, in the vicinity of the first heating element 36, and are mainly used for cooling the first heating element 36. Exhaust air flow outside the case. The plurality of second exhaust ports 45 are provided in the front plate 43 in the vicinity of the second heating element 37 at a position farther than the first exhaust port 44 when viewed from the top plate 41, and mainly the second heating element. The air flow used for cooling 37 is discharged to the outside of the case 27. The plurality of third exhaust ports 47 are provided in the front plate 43 in the vicinity of the third heating element 46 at a position farther than the second exhaust port 45 when viewed from the top plate 41, and mainly the third heating element. The air flow used for cooling 46 is discharged to the outside of the case 27. The ratio of the sum of the opening areas of all the first exhaust ports 44, the sum of the opening areas of all the second exhaust ports 45, and the sum of the opening areas of all the third exhaust ports 47 is, for example, 3: 4: 5.

  As shown in FIG. 11, the first exhaust port 44 is provided at a position overlapping the first heating element 36 when viewed from the front plate 43 (second wall portion), that is, when viewed from the front. Similarly, the 2nd exhaust port 45 is provided in the position which overlaps with the 2nd heat generating body 37 seeing from the front board 43 (2nd wall part). The third exhaust port 47 is provided at a position overlapping the third heating element 46 when viewed from the front plate 43 (second wall portion).

  With reference to FIG. 12, the cooling effect | action of the 1st heat generating body 36 of this embodiment, the 2nd heat generating body 37, and the 3rd heat generating body 46 is demonstrated.

  Most of the air flow sent from the fan 34 into the case 27 (the overhanging portion 26) first advances straight as it is and hits the top plate 41 (first wall portion). Thereafter, the air flow changes direction and flows in a direction in which the front plate 43 (second wall portion) is present, and mainly cools the first heating element 36 and heats the case 27 together with heat from the first exhaust port 44. It is discharged outside. At this time, since the first exhaust port 44 is provided at a position where it overlaps the first heating element 36, the air flow discharged from the first exhaust port 44 is divided above and below the first heating element 36. Then, the first heating element 36 passes through the vicinity of the first heating element 36. For this reason, in this embodiment, the cooling efficiency of the 1st heat generating body 36 is improving rather than 4th Embodiment.

  In addition, a part of the air flow that hits the top plate 41 (first wall portion) flows in a direction (obliquely downward direction) where the second heating element 37 and the third heating element 46 exist, and the second The heating element 37 and the third heating element 46 are cooled. Similarly, of the air flow sent from the fan 34, the air flow branched without hitting the top plate 41 (first wall portion) is directed toward the second heating element 37 and the third heating element 46. Then, the second heating element 37 and the third heating element 46 are cooled. At this time, since the second exhaust port 45 is provided at a position overlapping the second heat generating body 37, the air flow discharged from the second exhaust port 45 is divided above and below the second heat generating body 37. Then, the second heat generating body 37 is passed in the vicinity of the second heat generating body 37 in the form of being wound. Similarly, the air flow discharged from the third exhaust port 47 is divided above and below the third heat generating body 46 and passes through the vicinity of the third heat generating body 46 in such a manner that the third heat generating body 46 is involved. For this reason, in this embodiment, the cooling efficiency of the 2nd heat generating body 37 and the 3rd heat generating body 46 is improving rather than 4th Embodiment. At this time, in the present embodiment, the air conditioning member 51 is provided below the third heating element 46, so that cold air does not stay below the overhang portion 26.

  According to this embodiment, the 1st exhaust port 44 is provided in the position which overlaps with the 1st heat generating body 36 seeing from the 1st wall part, and the 2nd exhaust port 45 is from the 1st wall part. The third exhaust port 47 is provided at a position overlapping with the third heating element 46 when viewed from the first wall portion, while being provided at a position overlapping with the second heating element 37 when viewed. According to this configuration, it is possible to improve the cooling efficiency of the first heating element 36, the second heating element 37, and the third heating element 46, particularly in the vicinity of the second wall portion. In general, the second wall portion in which the first exhaust port 44, the second exhaust port 45, and the third exhaust port 47 are provided is located far from the cooling air supply source (fan 34). Cooling efficiency tends to decrease. According to the present embodiment, the cooling efficiency of the first heating element 36, the second heating element 37, and the third heating element 46 in the vicinity of the second wall can be improved. The first heating element 36, the second heating element 37, and the third heating element 46 in the vicinity of the second wall portion can be cooled to the same extent as the heating elements in the close position. Thereby, it is possible to prevent the cooling efficiency from varying depending on the position of the heating element and to cool them uniformly. Further, the air conditioning member 51 can smoothly exhaust air from the first exhaust port 44, the second exhaust port 45, and the third exhaust port 47 without causing stagnation in the inside (bottom part) of the case 27. .

  Next, a sixth embodiment of the elevator 11 to which the elevator control device is applied will be described with reference to FIGS. 13 and 14. Parts different from the first embodiment will be mainly described, and portions common to the first embodiment will be denoted by common reference numerals and description thereof will be omitted.

  The control panel 16 is detached from the plurality of first heating elements 36 and the plurality of second heating elements 37 housed in the overhanging portion 26 of the case 27 and the fan 34 and the duct portion 35 in the overhanging portion 26. And an air conditioning member 51 provided at a certain position.

  Two first heating elements 36 are arranged in the vicinity of the top plate 41. In addition, two second heating elements 37 are arranged at positions farther from the first heating element 36 when viewed from the top plate 41 (first wall portion).

  The air conditioning member 51 is provided at a position farther from the second heating element 37 when viewed from the top plate 41 (first wall portion). The air conditioning member 51 is provided over the entire length in the front-rear direction A in the overhang portion 26 at a position close to the fan 34. The air conditioning member 51 can guide the air flow from the fan 34 toward the first heating element 36 and the second heating element 37.

  The cooling effect | action of the 1st heat generating body 36 and the 2nd heat generating body 37 of this embodiment is demonstrated.

  Most of the air flow sent from the fan 34 into the case 27 (an overhang portion) first proceeds straight as it is and hits the top plate 41 (first wall portion). Thereafter, the air flow changes direction and flows in a direction in which the front plate 43 (second wall portion) is present, and mainly cools the first heating element 36 and heats the case 27 together with heat from the first exhaust port 44. It is discharged outside. In addition, a part of the airflow that hits the top plate 41 (first wall portion) flows in a direction (obliquely downward) of the second heating element 37 to cool the second heating element 37. Similarly, the air flow sent from the fan 34 that has branched without hitting the top plate 41 (first wall) is directed to the second heat generating body 37 in the direction of the second heat generating body 37. Cool down. At this time, in the present embodiment, since the air conditioning member 51 is provided below the second heating element 37, cold air does not stay below the overhang portion 26.

  Further, in this embodiment, since the opening ratio of the first exhaust port 44 and the second exhaust port 45 is 1: 2, the air flow once directed to the first heating element 36 is directly in the first state. Without being discharged from the exhaust port 44, the second exhaust port 45 is positively exhausted, and cooling of the second heating element 37 in the middle is promoted.

  According to the present embodiment, the elevator control device is provided in the case 27 at a position closer to the fan 34 than the first heating element 36 and the second heating element 37, and the air flow is changed to the first heating element 36. And a wind control member 51 for guiding the second heat generating body 37. According to this configuration, the air flow from the fan 34 is prevented from staying in the vicinity of the fan 34, and air stagnation does not occur inside the case 27 (bottom part), and the first exhaust port 44 and the second exhaust port 44. The air can be smoothly exhausted from the exhaust port 45. Thereby, the cooling efficiency of the first heating element 36 and the second heating element 37 can be further improved.

  In addition, the elevator control device and the elevator to which the elevator control device is applied can be variously modified without departing from the scope of the invention.

DESCRIPTION OF SYMBOLS 11 ... Elevator, 27 ... Case, 34 ... Fan, 36 ... 1st heat generating body, 37 ... 2nd heat generating body, 41 ... Top plate, 43 ... Front plate, 44 ... 1st exhaust port, 45 ... 2nd , 46 ... third heating element, 47 ... third exhaust port, 51 ... air conditioning member

Claims (7)

A case having a first wall and a second wall adjacent to the first wall;
A fan that sends an air flow into the case so that the air flow hits the first wall;
A first heating element provided in the vicinity of the first wall within the case;
A second heating element provided inside the case at a position farther from the first heating element when viewed from the first wall,
A first exhaust port provided in the second wall portion in the vicinity of the first heating element and exhausting the air flow to the outside of the case;
A second exhaust port that is provided in the second wall portion in the vicinity of the second heating element to be larger than an opening area of the first exhaust port, and discharges the air flow to the outside of the case;
Elevator control device.   Provided closer to the fan than the first heating element and the second heating element inside the case, and guides the air flow toward the first heating element and the second heating element. The elevator control device according to claim 1, further comprising an air conditioning member. The first exhaust port is provided at a position overlapping the first heating element when viewed from the second wall,
3. The elevator control device according to claim 2, wherein the second exhaust port is provided at a position overlapping the second heating element when viewed from the second wall portion.   2. The elevator control device according to claim 1, wherein the first heating element and the second heating element are provided at positions separated from each other in the lateral direction. A case having a first wall and a second wall adjacent to the first wall;
A fan that sends an air flow into the case so that the air flow hits the first wall;
A first heating element provided in the vicinity of the first wall within the case;
A second heating element provided inside the case at a position farther from the first heating element when viewed from the first wall,
A third heating element provided in a position farther than the second heating element when viewed from the first wall in the case;
A first exhaust port provided in the second wall portion in the vicinity of the first heating element and exhausting the air flow to the outside of the case;
A second exhaust port provided in the second wall portion in the vicinity of the second heating element and larger than an opening area of the first exhaust port, and for discharging the air flow to the outside of the case;
A third exhaust port provided in the second wall portion in the vicinity of the third heating element and larger than an opening area of the second exhaust port, and for discharging the airflow to the outside of the case;
Elevator control device.   Inside the case, the first heating element, the second heating element, and the third heating element are provided closer to the fan than the third heating element, and the air flow is changed to the first heating element and the second heating element. The elevator control device according to claim 5, further comprising an air conditioning member that guides toward the third heating element. The first exhaust port is provided at a position overlapping the first heating element when viewed from the second wall,
The second exhaust port is provided at a position overlapping the second heating element when viewed from the second wall,
The elevator control device according to claim 6, wherein the third exhaust port is provided at a position overlapping the third heating element when viewed from the second wall portion.

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