KR20130099182A - Cooling device for elevator - Google Patents

Abstract

It provides an elevator cooling device that does not require complicated maintenance work and obtains the required cooling effect. To this end, in an elevator cooling apparatus for cooling a device provided in an elevator car, an air intake unit for introducing air flow due to the running wind at the time of elevating the car into the inside of the device, And an exhaust unit for discharging air to the outside of the device, and a foreign matter separating means provided in the intake unit and separating foreign matter contained in the air stream using at least one of centrifugal force and gravity acting on the foreign matter. The intake unit is configured to introduce the air stream into which the foreign matter is separated by the foreign matter separating means, and the foreign matter content of which is less than before the separation.

Description

Elevator cooling device {COOLING DEVICE FOR ELEVATOR}

The present invention relates to a cooling device of an elevator.

Background Art Conventionally, as an elevator cooling device for cooling equipment such as a control board installed in an elevator car, for example, a heat radiating fin, a cooling fan, or a duct for blowing running wind at the time of driving a car is used.

A typical example of such a conventional cooling apparatus of an elevator is shown in FIG. In FIG. 12, 1 is an assembly box provided in the upper part of the cage | basket | car of the elevator which is not shown in figure. In this assembly box 1, the cooling object 2 which is a heat generating apparatus, such as a circuit board, is accommodated, for example. An inlet port 3 is provided on one side of the assembly box 1. This intake port 3 is equipped with an intake filter 21 for removing foreign matter such as sand dust during intake. On the other side of the assembly box 1, an exhaust fan 22 serving as an exhaust port is mounted. This exhaust fan 22 is generally driven to rotate by an electric motor. When the exhaust fan 22 rotates, the air whose temperature rises due to heat generated from the cooling target object 2 is exhausted from the cabinet 1. Then, since the air pressure in the assembly box 1 falls, outside air is taken in from the intake port 3 into the assembly box 1. At this time, the foreign matter contained in the intake air is captured by the intake filter 21.

Moreover, as another example of the conventional cooling apparatus of an elevator, what is disclosed by patent document 1 is known. In Patent Document 1, a fan device for cooling a circuit board mounted on a car is provided in a car, and the fan device is electrically driven along a guide rail to mechanically transmit rotation of a roller guide for guiding the car to move up and down. The heat radiating device of the elevator which rotates is disclosed. In addition, Patent Literature 1 discloses a running wind in a plurality of inlet and outlets for discharging the traveling wind, and a circuit board mounted in the car. Also disclosed is a ventilating duct to guide the car.

[Patent Document 1] Japanese Patent Application Laid-Open No. 2001-341962

However, in such a conventional elevator cooling apparatus, the use of heat radiation fins dissipates heat to be cooled by diffusion of heat due to heat conduction and natural convection of air around the heat radiation fins. Therefore, there is a problem that a cooling fin having a volume corresponding to the amount of heat to be cooled is required, and when the amount of heat to be cooled is increased, the size of the cooling fin is increased and a large installation space is required.

In the conventional cooling device of an elevator, the use of a cooling fan is forcibly blowing air from the outside of the car. The air outside the car may contain foreign matter such as sand dust. For this reason, foreign matters, such as sand dust contained in the air blown in from the outside of a car, are blown to a cooling object by a cooling fan. Accordingly, there is a problem that foreign matter adheres to and accumulates on the fan, resulting in a decrease in cooling capacity. In addition, when foreign matter adheres to and accumulates on the circuit board to be cooled, there is a problem that the electric circuit is tracked by dust, moisture, carbides, or the like, resulting in a failure of the equipment.

In order to prevent such troubles as foreign matters such as sand dust contained in the air blown in from the outside of the car, for example, as shown in FIG. 12, when a filter for removing foreign matters in the air is provided at the inlet port. There is. However, in this case, there is a problem that if a large amount of foreign matter adheres to the filter, it is clogged and the air flow rate decreases, resulting in a decrease in cooling capacity. In order to prevent the clogging of the filter, there is a problem that it is necessary to replace the filter regularly or to clean the filter, which takes a lot of troublesome labor.

Moreover, in the conventional elevator cooling apparatus shown in patent document 1, the rotation of a roller guide is mechanically transmitted to a cooling fan via a rotation transmission mechanism, and it is set as the power which rotates a cooling fan. For this reason, many moving parts exist in a cooling fan and a rotation transmission mechanism, and abrasion occurs in these moving parts. Therefore, there is a problem in that maintenance such as replacement of worn parts is necessary, and a lot of troublesome labor is required. In addition, Patent Document 1 also describes the purpose of providing a car with a ventilation duct having a plurality of air intakes and outlets for blowing in the running wind during the car lift. However, such a ventilation duct requires a large number of members, and there are problems such as an increase in the weight of a car and a cost in manufacturing.

This invention is made | formed in order to solve such a subject, Comprising: It is obtaining the elevator cooling apparatus which does not require complicated maintenance work and can acquire the required cooling effect.

An elevator cooling apparatus according to the present invention is an elevator cooling apparatus for cooling a device provided in an elevator car, wherein the air flow due to the running wind at the time of the elevator car is raised inside the device. At least one of a centrifugal force and a gravity force applied to the foreign matter, an intake part for introducing air into the apparatus, an exhaust part for discharging air inside the apparatus to the outside of the apparatus, and a foreign matter provided in the intake part and acting on the foreign matter contained in the air stream. The foreign matter separating means is separated by using any one, and the intake unit is configured to introduce the air flow in which the foreign matter is separated by the foreign matter separating means and the foreign matter content is reduced than before the separation.

In the elevator cooling apparatus according to the present invention, complicated maintenance work is not necessary, and the cooling effect required can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the assembly box which accommodated in the inside the cooling object which applied the cooling apparatus of the elevator which concerns on Embodiment 1 of this invention.
It is a front view explaining the flow of air in the cage running of the assembly box to which the cooling apparatus of the elevator which concerns on Embodiment 1 of this invention is applied.
It is a front view explaining the flow of air in the cage | basket | car stop of the assembly box to which the cooling apparatus of the elevator which concerns on Embodiment 1 of this invention is applied.
It is a figure explaining the structural conditions at the time of mounting the elevator cooling apparatus which concerns on Embodiment 1 of this invention in the elevator currently operating, and measuring the temperature change of a cooling object.
It is a graph which shows the measurement result in the structural conditions of FIG. 4 of the cooling apparatus of the elevator which concerns on Embodiment 1 of this invention.
It is a perspective view of the assembly box to which the cooling apparatus of the elevator which concerns on Embodiment 2 of this invention is applied.
It is a front view explaining the flow of air in the cage running of the assembly box to which the elevator cooling apparatus which concerns on Embodiment 2 of this invention is applied.
It is a front view explaining the flow of air in the cage | basket | car stop of the assembly box to which the cooling apparatus of the elevator which concerns on Embodiment 2 of this invention is applied.
Fig. 9 is a perspective view of an assembly box to which a cooling device for an elevator according to Embodiment 3 of the present invention is applied.
It is a front view explaining the flow of air in the cage running of the assembly box to which the elevator cooling apparatus which concerns on Embodiment 3 of this invention is applied.
It is a front view explaining the flow of air in the cage | basket | car stop of the assembly box to which the cooling apparatus of the elevator which concerns on Embodiment 3 of this invention is applied.
12 is a perspective view of an assembly box to which a conventional cooling device of an elevator is applied.

The present invention will be described with reference to the accompanying drawings. Like reference numerals denote like or equivalent parts throughout the drawings, and the overlapping description thereof will be appropriately simplified or omitted.

Embodiment 1

1 to 5 relate to Embodiment 1 of the present invention. The perspective view of the assembly box to which the cooling apparatus of the elevator which concerns on this embodiment is applied to FIG.

In FIG. 1, 1 is an assembly box provided in the upper part of the cage | basket | car of the elevator which is not shown in figure. This assembling box 1 is a substantially rectangular parallelepiped box. In the assembling box 1, the cooling object 2 which is a heat generating apparatus, such as a circuit board, is accommodated, for example. An inlet port 3 is provided at one end of the lower surface of the assembly box 1. This intake port 3 is equipped with an intake hood 4. This intake hood 4 is formed in a substantially semicircular shape when viewed from the front. The intake hood 4 has an intake portion guide plate 4a bent in an arc shape.

The intake hood 4 is attached to the intake port 3 portion of the assembly box 1 with the semi-circular circular arc portion downward and the diameter portion upward. At this time, of the substantially semi-circular diameter portions of the intake hood 4, one radial side is assigned to the intake port 3, and the other radial side is disposed so as to be outward from the side of the assembly box 1. . And the other radial side arrange | positioned so that it may become the position which emerged outward from the side surface of this assembly box 1 in the intake hood 4 is open toward upper direction. This opening forms the inflow surface 5.

The foreign matter separating plate 6 is provided at an end portion of the intake hood 4 on the side of the intake port 3. Here, the foreign matter separating plate 6 in the form of a straight plate protrudes inward from the arc side of the intake hood 4 so that the angle 7 formed between the intake portion guide plate and the foreign matter separating plate becomes an acute angle. In addition, the air inflow direction discharge port serving as an opening is formed in the intake part guide plate 4a of the portion closest to the foreign matter separator plate 6 in the space formed between the foreign material separator 6 and the intake part guide plate 4a. 8a) is provided. In addition, half of the intake port 3 side of both sides of the intake hood 4 (front side and rear side of the assembly box 1) is an opening portion, and the air flow progressing side outlet 8b is provided. Is formed.

An inner guide plate 9 is mounted on the side surface of the assembly box 1 so as to be positioned above the intake port 3. This inner light guide plate 9 is formed so that the cross section may be an arc shape of one quarter of the whole circle here.

The exhaust port 10 which is an opening part is provided in the upper end of the front side and the back side of the assembly box 1, respectively. An exhaust hood 11 is attached to the outside of these exhaust ports 10, respectively. These exhaust hoods 11 consist of two surfaces, the upper surface which covers the upper side of each exhaust port 10, and the surface parallel to the opening surface of each exhaust port 10. As shown in FIG. The left and right sides and the lower side of each exhaust port 10 are opened, and the exhaust surface 12 is formed. These exhaust hoods 11 are responsible for the rectifying action to prevent the running wind 13 from the upper side from flowing directly from the exhaust port 10 and thus losing the directivity of the airflow (unidirectionality of airflow). In addition, the exhaust hood 11 also has a function of making it difficult to blow foreign matter into the cabinet 1 from the exhaust port 10.

Fig. 2 illustrates the flow of air during car run of the assembly box to which the cooling device of the elevator configured as described above is applied. When the car rises, the assembly box 1 installed in the car also rises with the car. Therefore, the traveling wind 13 flows from the upper side to the lower side relative to the assembly box 1. When this traveling wind 13 touches the inflow surface 5 of the intake hood 4, airflow is induced from the difference in air pressure in accordance with the arc-shaped shape of the intake portion guide plate 4a of the intake hood 4. . At that time, the trajectory of foreign matter such as sand dust or garbage having a large mass compared to the air contained in the airflow is bent near the outer side of the arc-shaped trajectory by self-weight and centrifugal force (centrifugal action). That is, the foreign matter in the inflowing air stream 14 is rotated along the inner wall of the intake portion guide plate 4a and is led to a space formed between the foreign matter separation plate 6 and the intake portion guide plate 4a. .

In this way, the air having a large amount of foreign matters guided to the space formed between the foreign matter separating plate 6 and the intake portion guiding plate 4a is mainly discharged from the airflow progress direction discharge port 8a (air in the discharge port progress direction). (15). Many of the airflows which have not been discharged from the airflow direction discharge port 8a proceed upwards and enter the inside of the cabinet 1 from the inlet port 3 (introduction wind 16 in the cabinet). On the other hand, the remaining air flow that is not guided to the air flow direction discharge port 8a and the inlet port 3 is discharged from the air flow progress side direction discharge port 8b (flow of air 17 in the discharge port side direction). At this time, the foreign matter stayed at the bottom of the intake hood 4 and the intake portion guide plate 4a by gravity is discharged while discharging from the airflow advancing lateral discharge port 8b (discharge action of foreign matter). The air flow entering the inside of the assembly box 1 from the inlet port 3 is changed by the inner guiding plate 9 and blown into the cooling object 2. In this way, the cooling object 2 can be cooled efficiently by the airflow introduced into the assembly box 1.

The air warmed by the cooling object 2 is discharged from the exhaust port 10 having a lower air pressure. The air discharged from the exhaust hood 11 joins with the outside traveling wind 13 from the exhaust hood 11 (flow of air 18 flowing out).

In this way, first, the air intake hood 4 which blows the wind which the traveling wind 13 when the car of the elevator ascends from the upper side, and the intake port 3 which blows air into the assembly box 1 inside. It introduces into the inside of the assembly box 1 by this. In the course of this introduction, the direction of the airflow is changed upward by the arc-shaped intake portion guide plate 4a, and foreign matter in the airflow is separated using the principle of centrifugal separation. Finally, the foreign matter is removed from the air introduced into the assembly box 1 by the foreign matter separating plate 6. The foreign matter removed by the foreign matter separating plate 6 is caused by the part of the airflow entering from the inflow surface 5 of the intake hood 4, and the airflow progress direction outlet 8a in the direction of the main airflow and the progress of the main airflow. It discharges from the airflow progressing side direction discharge port 8b in the direction orthogonal to the direction. That is, the arc-shaped intake portion guide plate 4a, the foreign matter separating plate 6, and the air flow direction discharge port 8a and the air flow direction side discharge port 8b of the intake hood 4 are separated from the running wind 13. It constitutes a foreign matter separation means for separating the.

In this way, the air from which foreign matters were removed in the course of introducing the traveling wind 13 is blown into the cooling object 2 by the inner guiding plate 9 in the assembly box 1. Then, the air warmed by cooling the cooling target object 2 is discharged from the exhaust port 10 near the upper side of the assembly box 1 to the outside of the assembly box 1. Cooling is performed by this series of forced air flows.

On the other hand, the air flow during the stop of the car of the assembly box to which the cooling device of the elevator configured as described above is applied is as shown in FIG. 3. When the car stops and there is no travel wind, the arrangement is performed by natural convection generated by the heat generation of the cooling object 2 inside the cabinet 1. Compared with the case where the forced air flow is generated by the running wind, the air volume decreases. However, natural convection introduces outside air from the lower intake port 3, and the flow of air flowing in at the time of stopping (19 )) And the flow of air (the flow 20 of air flowing out at the time of stopping) arranged from the upper exhaust port 10 can be secured, and heat can be prevented from remaining. Since the running wind does not touch the upper part while the car is stopped, the warm air discharged from the exhaust port 10 rises upward. Here, the exhaust hood 11 is configured such that the left and right sides of each exhaust port 10 are opened. For this reason, the warming up by natural convection in the absence of running wind rises upward immediately after exhausting, and it becomes difficult for the warming up to stay inside the cabinet 1.

In order to obtain a desired arrangement effect by using the traveling wind or natural convection, it is necessary to design to ensure a passage having a constant cross-sectional area in the series from the intake port 3 to the exhaust port 10. This air path is, for example, in FIG. 1, the exhaust surface 12 formed by the assembly box 1 and the exhaust hood 11 from the inflow surface 5 formed by the assembly box 1 and the intake hood 4 through which the running wind flows. A series of tracks. The required cross-sectional area can be derived by means of thermofluid analysis simulation or experiment on the basis of parameters such as the number and area of the intake port 3 and the exhaust port 10, the amount of heat generated, the shape and arrangement of the cooling object 2, and the like. Can be.

FIG. 4 is a diagram illustrating a configuration condition when the cooling device of the elevator of this embodiment is actually mounted in an elevator in operation and the temperature change of the cooling target object is measured. In the cooling device of an elevator used for this measurement, in order to improve a cooling effect, two intake parts and four exhaust parts are provided. In addition, in order to compare a cross section of a wind path and a cooling effect, it measured simultaneously also in the structure of the condition B which made the air path cross section 1.5 times the condition A. Condition C is for comparison of influence by the difference in intake structure. In this condition C, the foreign matter separation means according to the present invention was not provided in the intake section, but only a hood for preventing the reverse flow of running wind was provided in the exhaust section, and the air passage cross section was made the same as condition A.

The measurement result for 24 hours in the structural conditions of FIG. 4 is shown in FIG. The measurement object was made into the surface temperature of the mounting component (electrolytic capacitor) of the printed circuit board inside a case. There is no change in the energized state inside the case, and the calorific value of the measurement target is always constant. In addition, the elevator state is represented by the acceleration sensor output. This acceleration sensor output is an output curve oscillating around 0.00 (V). The first half of the time when the amplitude of the vibration is small is the stop time zone, and the second half of the time when the vibration is intense is about 14 hours.

In the graph of FIG. 5, the temperature amplitude of about 3 to 4 ° C. in all the time zones is due to the wind blowing irregularly in the hoistway in addition to the running wind of the car. First, prepare under condition A and condition B. When compared with the average temperature of the measured value, the condition B compared with condition A resulted in the stop time zone being about 1 degreeC low, and the running time zone being 2 degreeC or more low. In other words, it can be said that the wider cross-sectional area of the air passage has a higher arrangement effect due to airflow, and the higher cooling effect due to congestion of running wind. In addition, the average temperature difference of 24 hours becomes 1 degreeC or more.

Next, when compared with condition A and condition C, although illustration is abbreviate | omitted, it was an intermediate result of contrast with condition A and condition B. In FIG. That is, compared with condition A, condition C was about 0.5 degreeC in stop time zone, and the driving time period was about 1 degreeC low. As the main reason, the condition A is compared with the condition C because the air intake resistance due to the curvature of the air intake portion or the foreign matter separating plate is higher than the condition C, and the condition A exhausts the air flow containing the foreign substances in the middle. Therefore, it is considered that the air volume reaching the cooling target is reduced by two points. Therefore, in order to obtain a cooling effect equivalent to or more than the case of not using the foreign matter separating means by using the intake section provided with the foreign matter separating means according to this embodiment, the air passage cross-sectional area taking into account the air passage resistance and the amount of decrease in the amount of air flow due to the middle exhaust. It turns out that setting of is necessary.

Here, the foreign matter separating plate 6 in the form of a straight plate was provided so that the angle 7 formed by the intake portion guide plate and the foreign matter separating plate was acute. In this regard, the foreign matter separating plate 6 may be bent in an 'L' shape or an arc shape, for example, and the angle 7 formed between the intake part guide plate and the foreign matter separating plate may be, for example, at a right angle.

In addition, the case where the assembly box 1 is provided in the upper part of a car was demonstrated. When installing the assembly box 1 in the lower part of a car, the direction of the intake hood 4 is changed in the direction which blows in the wind received at the time of descending of the car (downward direction opposite to the upper installation), With respect to the exhaust hood 11, it is conceivable to change the traveling wind at the time of descending from the exhaust port 10 to the direction in which it is not blown into the cabinet 1 (downward direction opposite to that of the upper installation).

The elevator cooling device configured as described above is an elevator cooling device that cools an assembly box (a cooling object inside) that is a device installed in an elevator car. At least one of a centrifugal force and gravity acting on the intake part to introduce the air inlet, the exhaust part to discharge the air inside the device to the outside of the device, and the foreign matter provided in the intake part and included in the air flow. It is provided with a foreign matter separating means for separating, and the intake unit is to introduce the air flow in which the foreign matter is separated by the foreign matter separating means and the foreign matter content is reduced than before the separation.

In addition, the foreign matter separating means discharges the separated foreign matter together with a part of the airflow from the airflow direction outlet port and the airflow direction side outlet port to the outside of the device without passing through the inside of the device.

For this reason, in the forced air cooling utilizing the traveling wind, the device can be cooled by air having reduced foreign matter content without using a filter or the like requiring maintenance. In addition, at this time, since foreign matters such as the separated dust are discharged to the outside of the apparatus by the wind pressure, complicated overhaul accompanying disassembly of the apparatus can be made unnecessary, or the work load can be reduced. . In addition, a power source for cooling and a power source having wear parts are unnecessary, and a cooling effect can be obtained from natural air cooling or more to equivalent to forced air cooling, and energy saving and resource saving can be achieved. In addition, since the duct from the intake to exhaust can be constituted by adding members only to a part of the inside and outside of the device, there are fewer components in comparison with the method of collecting wind by providing a duct outside the device, The cost required for manufacturing can be reduced, and the resource can be saved.

Embodiment 2 Fig.

Embodiment 2 demonstrated here is provided with two or more foreign material separation means in the structure of Embodiment 1 mentioned above. That is, in this Embodiment 2, the foreign material separation means of a plurality of steps (here 3 steps) is provided in the air path from the inflow surface of a running wind to the inlet port into a cabinet.

6 to 8 relate to Embodiment 2 of the present invention. The perspective view of the assembly box to which the cooling apparatus of the elevator which concerns on this embodiment is applied. As described above, the second embodiment is provided with a plurality of foreign matter separating means. That is, the intake hood 4 has a plurality of sets of the intake portion guide plate 4a, the foreign matter separating plate 6, and the airflow direction directional outlet 8a and the airflow side lateral outlet 8b. Dog) These sets are connected to other sets to form a series of air paths. That is, the outlet side of the 1st set and the inflow side of the 2nd set in which the inflow surface 5 is formed are connected, the outflow side of the 2nd set and the inflow side of the 3rd set are connected, 3 The outlet side of the first set is connected to the inlet port 3 provided on the lower surface of the assembly box 1.

Thus, since the intake hood 4 is slightly longer in the horizontal direction, the intake port 3 is located near the center of the lower surface of the assembling box 1, not near the side surface of the assembling box 1. For this reason, the internal guide plate 9 provided in Embodiment 1 was not provided in this Embodiment 2. As shown in FIG.

In addition, the other structure is the same as that of Embodiment 1, and the detailed description is abbreviate | omitted.

Fig. 7 illustrates the flow of air during car run of the assembly box to which the cooling device of the elevator configured as described above is applied. When the car rises, the traveling wind 13 flows from the upper side to the lower side relative to the assembly box 1. The running wind 13 is blown in from the inflow surface 5 of the intake hood 4, and the air flow is guided in accordance with the arc shape of the first intake portion guide plate 4a. At that time, similarly to the first embodiment, the foreign matter in the air stream is separated by the centrifugal action and the foreign matter separating plate 6, and is discharged from the air flow direction discharge port 8a and the air flow direction side discharge port 8b.

The airflow which has not been discharged from the airflow progress direction discharge port 8a and the airflow advance side discharge port 8b is once advanced upwards and flows into the next second set (foreign matter separating means). Then, in the same manner as in the first, the foreign matter in the air that has not been completely removed by the first foreign matter separating means is removed. Similarly, in the third set (foreign matter separating means), foreign matters in the air that have not been completely removed in the previous two sets (foreign matter separating means) are removed. In this way, the airflow which has undergone the foreign matter removal process to the foreign matter separating means in three stages is introduced into the assembly box 1 from the inlet port 3.

In addition, the process of the cooling of the cooling object 2 continued after this is the same as that of Embodiment 1, and the detailed description is abbreviate | omitted.

Fig. 8 shows the flow of air during the stop of the car of the assembly box to which the cooling device of the elevator in this embodiment is applied. The air flow during the car stop is almost the same as in the first embodiment. However, in addition to the inflow surface 5 of the intake hood 4, these plural airflow progressing sides are provided because there are airflow progressing lateral direction outlets 8b (and airflow progressing direction outlets 8a) as many as the foreign matter separating means. The point where the outside air is introduced from the directional discharge port 8b or the like is different from that in the first embodiment.

The number of foreign matter separating means provided in the intake hood 4, which is the intake portion, may be any number of steps depending on the purpose. In the case where a plurality of foreign matter separating means are provided, the radial dimension of the circular arc made by the intake portion guide plate 4a is changed by the type of foreign matter (dust, weight, etc.) to be separated for each stage. You may also In addition, as shown in FIG. 7, even if the rectifying member is provided in the substantially vertical lower part from the center of the circular arc which each intake part guide plate 4a makes, the trajectory of the airflow in the intake hood 4 will be made into a crank shape certainly. do.

The cooling device of an elevator comprised as mentioned above is provided by connecting two or more foreign material separating means in the structure of Embodiment 1. As shown in FIG. For this reason, the same effect as that of Embodiment 1 can be exhibited, and the foreign matter separation ability can be improved.

Embodiment 3:

Embodiments 1 and 2 described above were to separate foreign matter from the air by using centrifugal force and gravity. On the other hand, in Embodiment 3 described here, the foreign matter is separated from the air by using gravity mainly without using the action of centrifugal force in the intake section.

9 to 11 are related to Embodiment 3 of the present invention. The perspective view of the assembly box to which the cooling apparatus of the elevator which concerns on this embodiment is applied. In this Embodiment 3, the intake hood 4 is provided below the lower surface of the assembly box 1 in which the cooling object 2 is accommodated. The intake hood 4 has an intake portion guide plate 4a disposed substantially parallel to the lower surface of the assembly box 1. That is, the intake part guide plate 4a is arrange | positioned substantially horizontally. In addition, the air passage of the intake portion formed by the intake hood 4 (intake portion guide plate 4a) has a guiding path structure that blows linearly in a substantially horizontal direction. In addition, the intake portion guide plate 4a protrudes outward from both side surfaces of the assembly box 1. When the traveling wind 13 from the upper part touches the protrusion part of the intake part guide plate 4a, the traveling wind (in the lower part of the assembly box 1 formed by the intake hood 4) is driven by the air pressure difference. 13) is introduced.

Moreover, the inlet port 3 is provided in the lower surface of the assembly box 1. In the airflow blowing the inside of the intake hood 4 in the substantially horizontal direction, foreign matter in the airflow descends downwardly by gravity acting on its own weight, and is blown mainly linearly. On the other hand, a small part of the air in the vicinity of the lower surface of the assembly box 1, i.e., the upper part, has a lower air pressure and flows in from the inlet port 3 into the assembly box 1. In this way, by the action of gravity acting on the foreign matter, air containing a large amount of foreign matter is discharged, and air containing relatively few foreign matter is introduced into the cabinet 1 from the intake port 3.

In addition, the other structure is substantially the same as that of Embodiment 1 except the internal guide plate 9 is not provided, and the detailed description is abbreviate | omitted.

Fig. 10 illustrates the flow of air during car run of the assembly box to which the cooling device of the elevator configured as described above is applied. When the car rises, the traveling wind 13 flows from the upper side to the lower side relative to the assembly box 1. Then, the traveling wind 13 touches the protrusion of the intake portion guiding plate 4a and is introduced into the guiding path below the assembly box 1 formed by the intake hood 4. Then, by using the action of gravity acting on the same foreign matter as described above, the lower air containing a large amount of foreign matter is discharged, and the upper air having a relatively small amount of foreign matter included is introduced into the cabinet 1 from the intake port 3. .

In addition, the process of the cooling of the cooling object 2 continued after this is the same as that of Embodiment 1, and the detailed description is abbreviate | omitted.

Fig. 11 shows the flow of air during the car stop of the assembly box to which the cooling device of the elevator in this embodiment is applied. The air flow during the car stop is almost the same as in the first embodiment. By natural convection, outside air is blown in from the intake hood 4 and the intake port 3 below the assembly box 1, and warm air is discharged from the exhaust port 10 at the top of the assembly box 1.

In this embodiment, the intake port 3 may be provided with a net for separating foreign matter.

The cooling apparatus of the elevator comprised as mentioned above is equipped with the guide plate which forms the foreign matter separation means in a straight line in the horizontal direction instead of the structure of the foreign material separation means in the structure of Embodiment 1, By using gravity acting on the foreign matter, the foreign matter contained in the airflow is separated by guiding it downward perpendicularly to the path of the airflow formed by the guiding plate. For this reason, the merit in the structure of Embodiment 1 can be obtained with the concise structure, with a merit in the structure of Embodiment 1, and the cooling apparatus of the elevator which can aim at space saving.

In addition, in Embodiment 1 and 2 demonstrated above, when a series of ventilation path cross sections are the same, the air resistance of an intake part (inflow part) becomes large in the case where it is multiple stages compared with the case where the number of foreign material separation means is one stage. For this reason, in order to make air resistance low, it is necessary to make larger cross-sectional area, and it causes an increase in a constituent space and member usage. Moreover, when the airflow of Embodiment 3 is an intake part which blows linearly, a foreign material easily enters and leaves the inside of the cabinet 1 by the flow of air. However, the cooling device can be configured with a space saving, a simple shape, and a small amount of member usage. Based on such a situation, the appropriate structure can be selected from the structure of Embodiment 1-3 mentioned above according to the objective, such as giving priority to a foreign material separation function or space saving. That is, by changing the configuration of the foreign matter separating means of the intake section, the ability to separate foreign matter can be changed as required.

[Industrial Availability]

INDUSTRIAL APPLICABILITY The present invention can be used for an elevator cooling device for cooling equipment installed in an elevator car.

1 Assembly box 2 Cooling object
3 Intake vent 4 Intake hood
4a Air intake guide plate 5 Inlet side
6 Foreign matter separator 7 Angle between the intake part guide plate and foreign matter separator
8a air flow outlet 8b air flow side outlet
9 Internal shroud 10 Exhaust vent
11 Exhaust Hood 12 Exhaust Side
13 Running wind 14 Flowing air
15 Flow of air in outlet direction
16 Introduction wind in the assembly box
17 Flow of air in the direction of the outlet side
18 Outflowing Air Flow
19 Flow of air entering at stop
20 Flow of air flowing out at stop
21 Intake Filter 22 Exhaust Fan

Claims (8)

In the elevator cooling apparatus for cooling the equipment provided in the car of the elevator,
An air intake unit for introducing an air flow due to the running wind at the time of getting on and off the car to the inside of the device;
An exhaust unit for discharging air inside the device to the outside of the device;
It is provided in the intake unit, foreign matter separation means for separating the foreign matter contained in the air flow using at least one of the centrifugal force and gravity acting on the foreign matter,
And said intake portion introduces said air stream into which said foreign matter is separated by said foreign matter separating means and the foreign matter content of said foreign material is reduced than before said separation. The method according to claim 1,
The foreign matter separating means discharges the separated foreign matter together with a part of the air stream to the outside of the apparatus without passing through the inside of the apparatus. The method according to claim 1 or 2,
The foreign matter separating means is provided with a guiding plate (板 風 형성) to form a path of the air flow curved in the vertical downward, and is included in the air flow by using the centrifugal force and gravity acting on the foreign matter The foreign matter is separated by inducing the foreign matter near the outer periphery of the vertical to the path of the air flow formed by the guide plate. The method according to claim 3,
The intake unit is an elevator cooling apparatus, characterized in that provided with a plurality of the foreign matter separating means. The method according to claim 1 or 2,
The foreign matter separating means includes a guiding plate which forms a path of the air flow in a straight line in a horizontal direction, and the foreign matter included in the air flow is formed by the guiding plate using gravity acting on the foreign matter. Cooling device of an elevator characterized in that separated by guiding the vertical downward with respect to the path of the air flow. 5. The method according to any one of claims 1 to 4,
And a guiding means provided in the inside of the device to guide the air flow introduced into the inside of the device by the intake unit to a cooling target in the inside of the device. 6. The method according to any one of claims 1 to 5,
The exhaust part is provided with an exhaust hood which prevents the traveling wind or foreign matter from entering the inside of the device from the exhaust part and secures one-way of the air flow from the intake part to the exhaust part. Chiller. 7. The method according to any one of claims 1 to 6,
And said intake portion is disposed below said exhaust portion.

Images