Elevator control panel, elevator and power conversion device

Abstract

To provide an elevator control panel that can prevent a plurality of fins of a heat sink from being exposed inside the panel body. [Solution] The elevator control panel comprises a panel body arranged inside the hoistway or machine room, and a power conversion device arranged inside the panel body to supply power for running the car, the power conversion device comprising a heat sink having a plurality of fins, and a housing attached to the panel body inside the panel body, with the heat sink arranged inside so as to cover at least a portion of the plurality of fins.

Description

[Technical Field]

[0001] The present specification relates to an elevator control panel, an elevator, and a power conversion device. [Background technology]

[0002] Conventionally, for example, an elevator control panel includes a panel body placed inside a hoistway or a machine room, and a power converter placed inside the panel body to supply power for running the car (for example, Patent Document 1). The power converter includes a heat sink with multiple fins.

[0003] In the elevator control panel disclosed in Patent Document 1, the heat sink is disposed inside the panel body, and therefore the fins of the heat sink are covered by the panel body but exposed inside the panel body. That is, the fins of the power conversion device are exposed. This raises the risk of deformation or damage to the fins, for example, if an external force is accidentally applied to the fins. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2-301192 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, the object is to provide an elevator control panel in which a power conversion device is arranged inside the panel body while preventing multiple fins from being exposed. [Means for solving the problem]

[0006] The elevator control panel is a panel body disposed inside the elevator shaft or the machine room; a power conversion device that is disposed inside the panel body and supplies power for running the car, The power conversion device is a heat sink having a plurality of fins; The heat sink is disposed inside the housing so as to cover at least a portion of the plurality of fins, and the housing is attached to the main body inside the main body. [Brief explanation of the drawings]

[0007] [Figure 1] Schematic diagram of an elevator according to an embodiment. [Figure 2] FIG. 10 is a front view of the power conversion device according to the embodiment. [Figure 3] FIG. 10 is a side view of the power conversion device according to the embodiment. [Figure 4] FIG. 10 is a rear view of the power conversion device according to the embodiment. [Figure 5] FIG. 2 is a perspective view of the power conversion device according to the embodiment; [Figure 6] FIG. 2 is a perspective view of the power conversion device according to the embodiment; [Figure 7] FIG. 10 is an internal side view of the power conversion device according to the embodiment. [Figure 8] FIG. 10 is a front view of the power conversion device according to the embodiment. [Figure 9] 8A and 8B are diagrams showing a situation where cleaning is performed from the first opening with a cleaning tool (a: an enlarged view of region IXa in FIG. 7; b: an enlarged view of region IXb in FIG. 8). [Figure 10] 7A and 7B are diagrams showing a situation where a cleaning tool is used to clean through the second opening (a: enlarged view of area Xa in FIG. 7; b: enlarged view of area Xb in FIG. 8). DETAILED DESCRIPTION OF THE INVENTION

[0008] In each drawing, the dimensions of the components may be enlarged or reduced relative to the actual dimensions, for example, to facilitate understanding, and the dimensional ratios between the drawings may not be consistent. Note that in each drawing, for example, to facilitate understanding, some of the components may be omitted.

[0009] Terms including ordinal numbers such as "first" and "second" are used to describe various components, but these terms are used only to distinguish one component from another, and the components are not particularly limited by these terms. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. Furthermore, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0010] An embodiment of an elevator, an elevator control panel, and a power conversion device will be described below with reference to Figures 1 to 10. Note that the following embodiment is provided as an example to help understand the configurations of the elevator, elevator control panel, and power conversion device, and does not limit the configurations of the elevator, elevator control panel, and power conversion device.

[0011] 1, the elevator 1 may include, for example, a car 1a for people (passengers) to ride in, a car drive unit 2 that drives the car 1a, a car rail 1b that guides the car 1a, and a processing unit 1c that controls each part of the elevator 1. The drive system of the car drive unit 2 is not particularly limited.

[0012] For example, as in this embodiment, the elevator 1 may be configured to include a car rope 1d having a first end connected to the car 1a, a counterweight 1e connected to a second end of the car rope 1d, and a counterweight rail 1f that guides the counterweight 1e, and the car drive unit 2 may be configured to include a sheave 2a around which the car rope 1d is wound, and a drive source 2b (e.g., a motor) that rotates the sheave 2a.

[0013] That is, the car drive unit 2 may be a hoist and the elevator 1 may be a rope-type drive system. However, the present invention is not limited to such a configuration, and may be configured, for example, such that the car drive unit 2 is a hydraulic device and the elevator 1 is a hydraulic drive system, or such that the car drive unit 2 is a linear motor and the elevator 1 is a linear motor-type drive system.

[0014] In addition, in this embodiment, the first end of the car rope 1d is connected to the car 1a, and the second end of the car rope 1d is connected to the counterweight 1e, but the present invention is not limited to this configuration. For example, a configuration is also possible in which both ends of the car rope 1d are fixed to the upper or lower part of the hoistway X2, and the car rope 1d is wound around the sheaves of the car 1a and the counterweight 1e, respectively, thereby connecting the car rope 1d to the car 1a and the counterweight 1e, respectively.

[0015] Furthermore, the elevator 1 according to this embodiment is configured such that the hoisting machine, which is the car drive unit 2, is disposed inside the machine room X1, but is not limited to such a configuration. For example, the elevator 1 may be configured such that the machine room X1 is not provided and the hoisting machine is disposed inside the hoistway X2.

[0016] The processing unit 1c includes an elevator control panel (hereinafter also simply referred to as "control panel") 3 arranged inside the machine room X1. The control panel 3 includes a box-shaped panel main body 4 arranged inside the machine room X1, and a power converter 10 removably attached to the panel main body 4 inside the panel main body 4 and supplying power for running the car 1a. The panel main body 4 may be configured so that the inside can be opened, for example, by opening a door or removing a cover.

[0017] In the elevator 1 according to this embodiment, the control panel 3 (panel body 4) is arranged inside the machine room X1, but the configuration is not limited to this. For example, the machine room X1 may not be provided, and the control panel 3 (panel body 4) may be arranged inside the hoistway X2.

[0018] The power conversion device 10 may be, for example, an inverter device or may be, for example, a converter device. The inverter device may be configured to change the traveling speed of the car 1a by changing the frequency of the power for running the car 1a, specifically, the power supplied to the car drive unit 2 (hoisting device).

[0019] 2 to 6, power converter 10 includes heat sink 11 having a plurality of fins 11a, housing 12 in which heat sink 11 is disposed, and air blowing means 13 that blows air between fins 11a in vertical direction D1 from lower ends (upstream ends) 11c of fins 11a to upper ends (downstream ends) 11d of fins 11a. Power converter 10 may also include, for example, electrical components 21 to 27 that are energized and insulating components 31 to 37 that are electrically insulated from electrical components 21 to 27 and are not energized, as in this embodiment.

[0020] In this specification, the directions D1 to D3 of the power conversion device 10 are the directions D1 to D3 when a person facing the power conversion device 10 looks at the power conversion device 10 with the power conversion device 10 attached to the panel main body 4. Therefore, the first horizontal direction D2 is also called the front-to-back direction D2, and the second horizontal direction D3 is the horizontal direction D3 that is perpendicular to the first horizontal direction D2 and is also called the left-to-right direction D3.

[0021] Of the front-to-rear direction D2, the arrow direction in each figure is the front direction (toward the viewer), and the direction opposite to the arrow direction in each figure is the rear direction. Of the left-to-right direction D3, the arrow direction in each figure is the left direction, and the direction opposite to the arrow direction in each figure is the right direction. Of the up-down direction D1, the arrow direction in each figure is the upward direction, and the direction opposite to the arrow direction in each figure is the downward direction. Of course, when the power conversion device 10 is removed from the panel body 4, the directions D1 to D3 may be different.

[0022] Although not particularly limited, the weight of the power conversion device 10 may be, for example, 10 kg or more, or may be, for example, 20 kg or more. Furthermore, although not particularly limited, the weight of the power conversion device 10 may be, for example, 50 kg or less, or may be, for example, 40 kg or less.

[0023] The housing 12 may include first and second side surface portions 14, 15 spaced apart in the left-right direction D3, a base surface portion 16 fixed to the rear ends of the first and second side surface portions 14, 15, respectively, and a cover surface portion 17 disposed forward of the base surface portion 16. As a result, the housing 12 is formed in a cylindrical shape (specifically, a rectangular cylindrical shape). Note that, for example, the cover surface portion 17 may be configured to be removably attached to the front ends of the side surface portions 14, 15 by attachment means (e.g., bolts and nuts) not shown.

[0024] The base surface portion 16 may have, for example, an attachment hole 16b into which the attachment means 5 (for example, a screw member) is inserted, as in the present embodiment. This allows the base surface portion 16 to be removably attached to the wall 4a of the panel main body 4 by the attachment means 5. Therefore, the housing 12 is removably attached to the panel main body 4 inside the panel main body 4.

[0025] The housing 12 may have an upper opening 12a that is disposed at the top and is open at the top, as in the present embodiment. Alternatively, for example, as in the present embodiment, the upper end of the base surface portion 16 may be disposed higher than the upper end of the cover surface portion 17, and the upper opening 12a may be open at the top and front.

[0026] The housing 12 may also have a lower opening 12b that is disposed at the bottom and is open downward, as in the present embodiment. Alternatively, the lower end of the base surface portion 16 may be disposed lower than the lower end of the cover surface portion 17, and the lower opening 12b may be open downward and forward, as in the present embodiment.

[0027] The blower 13 may be, for example, an exhaust fan arranged downstream (upper) of the fins 11a as in this embodiment. Note that the blower 13 may include an air supply fan arranged upstream (lower) of the fins 11a instead of (or in addition to) the exhaust fan.

[0028] The heat sink 11 may include a base 11b to which the fins 11a are fixed, as in the present embodiment. For example, as in the present embodiment, the fins 11a may be formed in a plate shape extending along the up-down direction D1 and the front-rear direction D2, and the base 11b may be formed in a plate shape extending along the up-down direction D1 and the left-right direction D3. This allows air to flow between the fins 11a in the up-down direction D1 from the lower ends 11c to the upper ends 11d of the fins 11a.

[0029] The configuration of the fins 11a is not particularly limited. For example, the fins 11a may be formed in a lattice pattern that allows air to flow between the fins 11a in the up-down direction D1 from the lower ends 11c to the upper ends 11d of the fins 11a. The fins 11a may also be made of, for example, a metal (aluminum) with high thermal conductivity.

[0030] For example, as in this embodiment, the electrical components 21-27 may include heat-generating components 21-23 connected to the base 11b of the heat sink 11 in order to generate heat, and non-heat-generating components 24-27 spaced apart from the heat sink 11. Although not shown (particularly in the area in front of the heat-generating components 21-23), the electrical components 21-27 may include, for example, a circuit board, cables or bus bars that electrically connect the components 21-27.

[0031] The heat-generating components 21 to 23 may include, for example, first to third power semiconductor modules 21 to 23, as in this embodiment. The non-heat-generating components 24 to 27 may include, for example, an electrolytic capacitor 24, an electromagnetic switch 25, and first and second terminal blocks 26 and 27, as in this embodiment. The non-heat-generating components 24 to 27 may generate heat to the extent that cooling by a heat sink 11 is not required.

[0032] For example, as in this embodiment, the insulating parts 31 to 37 may include handles 31 and 32 to be held and first to fifth brackets 33 to 37 for fixing the respective parts 11, 13, 24 to 27 to the housing 12. Note that the insulating parts 31 to 37 may be made of, for example, a conductive material (for example, metal), or may be made of, for example, a non-conductive material (for example, hard resin).

[0033] The handles 31, 32 may include, for example, an upper handle 31 disposed inside the upper open portion 12a of the housing 12 and a lower handle 32 disposed inside the lower open portion 12b of the housing 12, as in this embodiment. As a result, the upper handle 31 is exposed from above and the front, and the lower handle 32 is exposed from below and the front. Therefore, the upper handle 31 can be held from above and the front of the housing 12, and the lower handle 32 can be held from below and the front of the housing 12.

[0034] Furthermore, the upper handle 31 and the lower handle 32 may extend in the left-right direction D3 and connect the first and second side surface portions 14, 15, as in this embodiment. This allows the upper handle 31 and the lower handle 32 to function not only as handles but also as a means of reinforcing the housing 12. Note that the upper handle 31 and the lower handle 32 may be formed in a cylindrical shape, as in this embodiment.

[0035] The first bracket 33 may, for example, as in this embodiment, fix the heat sink 11 and the air blower 13 to the side surface portions 14, 15 and the base surface portion 16. The second bracket 34 may, for example, as in this embodiment, fix the electrolytic capacitor 24 to the base surface portion 16. The third bracket 35 may, for example, as in this embodiment, fix the electromagnetic switch 25 to the base surface portion 16.

[0036] Furthermore, the fourth bracket 36 may fix the first terminal block 26 to the lower handle 32, for example, as in this embodiment, thereby fixing the first terminal block 26 to the side surface portions 14, 15 via the lower handle 32. Furthermore, the fifth bracket 37 may fix the second terminal block 27 to the side surface portions 14, 15, for example, as in this embodiment.

[0037] The heat sink 11 and other components 13, 21 to 27, 31 to 37 are disposed inside the housing 12. As a result, the fins 11a are covered by the housing 12, and the power conversion device 10 can be disposed inside the panel body 4 while preventing the fins 11a from being exposed. This prevents the fins 11a from being deformed or damaged due to an external force being applied to the fins 11a by mistake.

[0038] As an example, since the housing 12 covers the fins 11a, it is possible to prevent the fins 11a from being exposed in the power conversion device 10. This makes it possible to prevent the fins 11a from being deformed or damaged due to an external force being mistakenly applied to the fins 11a when the power conversion device 10 is attached to the panel body 4, for example.

[0039] Furthermore, as one example, since the housing 12 covers the fins 11a, it is possible to prevent the fins 11a from being exposed inside the panel body 4. This makes it possible to prevent the fins 11a from being deformed or damaged due to an external force being mistakenly applied to the fins 11a when, for example, the inside of the panel body 4 is opened for maintenance.

[0040] For example, as in this embodiment, the first side surface portion 14 may cover the entire fins 11a from the right side when viewed in the left-right direction D3. Note that, since the components 11b, 13, 21-27, and 31-37 are not disposed between the first side surface portion 14 and the fins 11a, the first side surface portion 14 directly covers the fins 11a.

[0041] Also, for example, the second side surface portion 15 may cover the entire fins 11a from the left side when viewed in the left-right direction D3, as in this embodiment. Note that, since the components 11b, 13, 21-27, and 31-37 are not arranged between the second side surface portion 15 and the fins 11a, the second side surface portion 15 directly covers the fins 11a.

[0042] Furthermore, for example, the base surface portion 16 may cover the entire fins 11a from the rear side when viewed in the front-rear direction D2, as in this embodiment. Note that, since the components 11b, 13, 21-27, and 31-37 are not disposed between the base surface portion 16 and the fins 11a, the base surface portion 16 directly covers the fins 11a.

[0043] Also, for example, the cover surface portion 17 may cover the entire plurality of fins 11a from the front side as viewed in the front-rear direction D2, as in this embodiment. Note that components 11b, 21 to 23 are arranged between the cover surface portion 17 and the plurality of fins 11a. The base 11b of the heat sink 11 may be arranged forward of the plurality of fins 11a as in this embodiment, and may cover the entire plurality of fins 11a from the front side as viewed in the front-rear direction D2.

[0044] In this embodiment, the housing 12 is formed in a cylindrical shape and the heat sink 11 is disposed inside the housing 12, so that the housing 12 covers at least a portion of the fins 11a when viewed in the lateral directions D2 and D3. Specifically, the housing 12 covers the entire fins 11a when viewed in the lateral directions D2 and D3.

[0045] The housing 12 may be configured, for example, as in this embodiment, so as not to cover the fins 11 a when viewed in the vertical direction D1. Also, for example, as in this embodiment, some of the components 13 and 33 may cover at least a portion (in this embodiment, all) of the fins 11 a from above when viewed in the vertical direction D1, and some of the components 24 to 26, 32, and 34 to 36 may cover at least a portion (in this embodiment, a portion) of the fins 11 a from below when viewed in the vertical direction D1.

[0046] Incidentally, the air blowing means 13 causes the air to flow upward through the lower open portion 12b, the heat sink 11, and the upper open portion 12a in that order, thereby causing the air to flow upward inside the housing 12. As a result, in the heat sink 11, the air flows upward between the multiple fins 11a, 11a, so that the multiple fins 11a are supplied with air from the upstream end (lower end) 11c and exhausted from the downstream end (upper end) 11d.

[0047] Therefore, while heat can be efficiently dissipated from the fins 11a, there is a risk that dust may accumulate on the upstream ends (lower ends) 11c of the fins 11a where air is supplied. Therefore, there is a demand for cleaning the upstream ends 11c of the fins 11a in order to remove the dust accumulated on the upstream ends (lower ends) 11c of the fins 11a.

[0048] On the other hand, some of the electrical components 21-27 and insulating components 31-37 are arranged upstream (below) the fins 11a and overlap with the fins 11a when viewed in the vertical direction D1. Although not particularly limited, in this embodiment, the electrolytic capacitor 24, the electromagnetic switch 25, the first terminal block 26, the lower handle 32, and the second to fourth brackets 34-36 are arranged upstream (below) the fins 11a and overlap with the fins 11a when viewed in the vertical direction D1.

[0049] As a result, the components 24-26, 32, 34-36 are arranged in an area upstream (below) the fins 11a inside the housing 12. Therefore, for example, the electric components 21-27 and the insulating components 31-37 can be arranged efficiently inside the housing 12, which can prevent the power converter 10 from becoming larger in size. However, the presence of the components 24-27, 32, 34-36 makes it difficult to clean the upstream ends (lower ends) 11c of the fins 11a from the lower part (lower open part 12b) of the housing 12.

[0050] Therefore, the housing 12 is provided with openings 16a, 14a, 15a (see FIG. 7 for opening 15a) that are open in the lateral directions D2, D3, D3. Specifically, for example, as in this embodiment, the base surface portion 16 may be configured to have a first opening 16a that is open in the front-rear direction D2, and the first and second side surface portions 14, 15 may be configured to have second openings 14a, 15a that are open in the left-right direction D3.

[0051] This allows the upstream ends (lower ends) 11c of the multiple fins 11a to be cleaned through the openings 16a, 14a, and 15a. Note that the first opening 16a may extend in the left-right direction D3, as in this embodiment, and the second openings 14a and 15a may extend in the front-rear direction D2, as in this embodiment.

[0052] Furthermore, the openings 16a, 14a, and 15a are spaced upstream (downward) from the upstream ends (lower ends) 11c of the fins 11a when viewed in the lateral directions D2, D3, and D3. In this embodiment, the first opening 16a is spaced downward from the lower ends 11c of the fins 11a when viewed in the front-rear direction D2, and the second openings 14a and 15a are spaced downward from the lower ends 11c of the fins 11a when viewed in the left-right direction D3.

[0053] This prevents the fins 11a from being exposed through the openings 16a, 14a, and 15a, and therefore prevents the fins 11a from being deformed or damaged due to, for example, an external force being mistakenly applied to the fins 11a through the openings 16a, 14a, and 15a.

[0054] Although not particularly limited, the distance that openings 16a, 14a, and 15a are spaced upstream (downward) from upstream ends (lower ends) 11c of fins 11a as viewed in lateral directions D2, D3, and D3 may be, for example, 50 mm or less, or may be, for example, 30 mm or less, or may be, for example, 10 mm or less, which makes it possible to easily clean the upstream ends (lower ends) 11c of multiple fins 11a from openings 16a, 14a, and 15a.

[0055] 7 to 9, all of the components 11, 13, 21 to 27, and 31 to 37 arranged inside the housing 12 are separated from the first spatial region 10a (the region surrounded by a two-dot chain line in FIG. 9) that overlaps with the multiple fins 11a when viewed in the up-down direction D1 and with the first opening 16a when viewed in the front-rear direction D2. As a result, the first spatial region 10a is composed only of air.

[0056] 9, for example, when a long cleaning tool Y1 is inserted from the first opening 16a in the front-to-rear direction D2, the cleaning tool Y1 can be prevented from hitting the components 11, 13, 21 to 27, and 31 to 37 inside the housing 12 in the front-to-rear direction D2. As a result, for example, the cleaning tool Y1 can be prevented from applying an external force in the front-to-rear direction D2 to the components 11, 13, 21 to 27, and 31 to 37 inside the housing 12.

[0057] Furthermore, the upstream ends (lower ends) 11c of the fins 11a are arranged along the front-rear direction D2 and the left-right direction D3, while the first opening 16a extends in the left-right direction D3. As a result, the first opening 16a guides the cleaning tool Y1 in the left-right direction D3, so that the cleaning tool Y1 moves along the upstream ends (lower ends) 11c of the fins 11a. This makes it easier to clean the upstream ends (lower ends) 11c of the fins 11a, for example.

[0058] 7 illustrates the components 11, 13, 21-27, and 31-37 inside the housing 12 of the power conversion device 10 without showing the first side surface portion 14, and in Fig. 8 illustrates the components 11, 13, 21-27, and 31-37 inside the housing 12 without showing the cover surface portion 17 of the power conversion device 10. In Fig. 9(a) (similarly to Fig. 10(a)), the second opening 15a is not shown, and in Fig. 9(b) (similarly to Fig. 10(b)), the first opening 16a is not shown.

[0059] 7 to 8 and 10, all of the components 11, 13, 21 to 27, and 31 to 37 arranged inside the housing 12 are separated from the second spatial region 10b (the region surrounded by a two-dot chain line in FIG. 10) that overlaps with the multiple fins 11a when viewed in the up-down direction D1 and with the second openings 14a and 15a when viewed in the left-right direction D3. As a result, the second spatial region 10b is composed only of air.

[0060] 10, for example, when a long cleaning tool Y1 is inserted in the left-right direction D3 through the second openings 14a, 15a, it is possible to prevent the cleaning tool Y1 from hitting the components 11, 13, 21-27, 31-37 inside the housing 12 in the left-right direction D3. As a result, it is possible to prevent the cleaning tool Y1 from applying an external force in the left-right direction D3 to the components 11, 13, 21-27, 31-37 inside the housing 12.

[0061] Furthermore, the upstream ends (lower ends) 11c of the multiple fins 11a are arranged along the front-rear direction D2 and the left-right direction D3, while the second openings 14a, 15a extend in the front-rear direction D2. As a result, the second openings 14a, 15a guide the cleaning tool Y1 in the front-rear direction D2, so that the cleaning tool Y1 moves along the upstream ends (lower ends) 11c of the multiple fins 11a. This makes it easier to clean the upstream ends (lower ends) 11c of the multiple fins 11a, for example.

[0062] The method for cleaning the upstream ends (lower ends) 11c of the fins 11a is not particularly limited. For example, the upstream ends (lower ends) 11c of the fins 11a may be cleaned using a cleaning tool Y1 such as a nozzle of a vacuum cleaner (see FIGS. 9 and 10) or a brush, or the upstream ends (lower ends) 11c of the fins 11a may be cleaned directly by hand without using the cleaning tool Y1.

[0063] Furthermore, by attaching the housing 12 to the wall 4a of the board body 4 inside the board body 4 (see FIG. 3), the first opening 16a is covered by the wall 4a of the board body 4. This makes it possible to prevent the first opening 16a from being opened while the housing 12 is attached to the wall 4a of the board body 4.

[0064] Therefore, for example, it is possible to prevent dust from entering through the first opening 16a when the housing 12 is attached to the wall 4a of the board body 4. Although not particularly limited, when the housing 12 is attached to the wall 4a of the board body 4, the distance between the first opening 16a (specifically, the base surface portion 16) and the wall 4a of the board body 4 may be, for example, 10 mm or less, 5 mm or less, or 0 mm (the first opening 16a and the wall 4a are in contact with each other).

[0065] On the other hand, the first opening 16a is opened by removing the housing 12 from the wall 4a of the panel body 4. This allows the upstream ends (lower ends) 11c of the multiple fins 11a to be cleaned through the first opening 16a.

[0066] Furthermore, when the housing 12 is attached to the wall 4a of the panel body 4, the second openings 14a, 15a may be open in the left-right direction D3, and may also be covered, for example, by a cover material that can be attached and detached to the side portions 14, 15.

[0067] [1] As described above, the elevator control panel 3, as in this embodiment, A panel body 4 disposed inside the elevator shaft X2 or the machine room X1 (in this embodiment, the machine room X1); a power converter 10 that is disposed inside the panel body 4 and supplies power for running the car 1a; The power conversion device 10 includes: a heat sink 11 having a plurality of fins 11a; a housing 12 in which the heat sink 11 is disposed so as to cover at least a portion of the plurality of fins 11a, and which is attached to the panel body 4 inside the panel body 4; This configuration is preferable.

[0068] According to this configuration, the housing 12 is attached to the panel body 4 inside the panel body 4. Since the heat sink 11 is disposed inside the housing 12, at least a portion of the fins 11a are covered by the housing 12. This allows the power conversion device 10 to be disposed inside the panel body 4 while preventing the fins 11a from being exposed.

[0069] [2] In addition, in the elevator control panel 3 of [1] above, as in this embodiment, The power conversion device 10 includes a blower 13 that blows air between the plurality of fins 11a in a first direction (in this embodiment, a vertical direction) D1 from an upstream end (in this embodiment, a lower end) 11c of the plurality of fins 11a to a downstream end (in this embodiment, an upper end) 11d of the plurality of fins 11a, The housing 12 has openings 16a, 14a, and 15a that open in second directions (in this embodiment, horizontal directions) D2, D3, and D3 that are perpendicular to the first direction D1, The openings 16a, 14a, and 15a are spaced apart from the upstream ends 11c of the fins 11a toward the upstream side (downward in this embodiment) in the first direction D1 when viewed in the second directions D2, D3, and D3. This configuration is preferable.

[0070] With this configuration, the air blowing means 13 blows air between the fins 11a in the first direction D1, so that the fins 11a are supplied with air from their upstream ends 11c in the first direction D1 and exhausted from their downstream ends 11d in the first direction D1. While this allows the fins 11a to efficiently exhaust heat, there is a risk of dust accumulating on the upstream ends 11c of the fins 11a to which air is supplied.

[0071] In contrast, the housing 12 has openings 16a, 14a, and 15a that open in second directions D2, D3, and D3 that are perpendicular to the first direction D1, so that the upstream ends 11c of the multiple fins 11a can be cleaned through the openings 16a, 14a, and 15a.

[0072] Moreover, the openings 16a, 14a, and 15a are spaced apart upstream of the fins 11a in the first direction D1 when viewed in the second directions D2, D3, and D3, which prevents the fins 11a from being exposed through the openings 16a, 14a, and 15a.

[0073] [3] In addition, in the elevator control panel 3 of [2] above, as in this embodiment, All of the components 11, 13, 21 to 27, 31 to 37 arranged inside the housing 12 are separated from spatial regions 10a, 10b, 10b that overlap with the plurality of fins 11a when viewed in a first direction (vertical direction in this embodiment) D1 and that overlap with the openings 16a, 14a, 15a when viewed in a second direction (horizontal direction in this embodiment) D2, D3, D3. This configuration is preferable.

[0074] With this configuration, all of the components 11, 13, 21 to 27, and 31 to 37 arranged inside the housing 12 are separated from the spatial regions 10a and 10b, and the spatial regions 10a and 10b are therefore composed of only air, which can prevent the components 11, 13, 21 to 27, and 31 to 37 from coming into contact with the components from the second directions D2, D3, and D3 through the openings 16a, 14a, and 15a.

[0075] [4] In addition, in the elevator control panel 3 of [3] above, as in this embodiment, The power converter 10 includes components 24 to 26, 32, 34 to 36 that are arranged upstream (lower in this embodiment) of the openings 16a, 14a, 15a in the first direction (vertical direction in this embodiment) D1 and overlap with the plurality of fins 11a when viewed in the first direction D1. This configuration is preferable.

[0076] With this configuration, the components 24-26, 32, 34-36 of the power conversion device 10 are arranged upstream of the openings 16a, 14a, 15a in the first direction D1 and overlap with the fins 11a when viewed in the first direction D1. This allows the components 24-26, 32, 34-36 to be arranged in an area inside the housing 12 that is upstream of the fins 11a.

[0077] On the other hand, the presence of the parts 24-26, 32, 34-36 makes it difficult to clean the upstream ends 11c of the multiple fins 11a from the upstream side in the first direction D1 of the housing 12. In contrast, because the housing 12 has openings 16a, 14a, 15a that open in the second directions D2, D3, D3, the upstream ends 11c of the multiple fins 11a can be cleaned from the openings 16a, 14a, 15a.

[0078] [5] In addition, in any one of the elevator control panels 3 described above in [1] to [4], as in this embodiment, The housing 12 is removably attached to the wall 4a of the panel body 4, The opening (first opening in this embodiment) 16a is covered by the wall 4a when the housing 12 is attached to the wall 4a. This configuration is preferable.

[0079] According to this configuration, when the housing 12 is attached to the wall 4a of the panel body 4, the opening 16a is covered by the wall 4a of the panel body 4. This makes it possible to prevent the opening 16a from being opened when the housing 12 is attached to the wall 4a of the panel body 4. On the other hand, when the housing 12 is detached from the wall 4a of the panel body 4, the opening 16a is opened. This makes it possible to clean the upstream ends 11c of the multiple fins 11a through the opening 16a.

[0080] [6] In addition, the elevator 1, as in this embodiment, Any one of the elevator control panels 3 described above in [1] to [5]; and a car 1a that runs using power supplied from the elevator control panel 3. This configuration is preferable.

[0081] According to this configuration, the power converter 10 is disposed inside the panel body 4 while preventing the plurality of fins 11a from being exposed.

[0082] [7] Furthermore, as in this embodiment, the power conversion device 10 Used in any one of the elevator control panels 3 described above in [1] to [5]. This configuration is preferable.

[0083] According to this configuration, the power conversion device 10 can be disposed inside the panel body 4 while preventing the plurality of fins 11a from being exposed.

[0084] The elevator 1, elevator control panel 3, and power conversion device 10 are not limited to the configurations of the above-described embodiments, and are not limited to the above-described effects. Furthermore, various modifications can be made to the elevator 1, elevator control panel 3, and power conversion device 10 without departing from the spirit of the present invention. For example, it is of course possible to arbitrarily select one or more of the configurations, methods, etc. of the various modified examples described below and adopt them in the configurations, methods, etc. of the above-described embodiments.

[0085] (A) In the power conversion device 10 according to the above embodiment, the housing 12 covers the entirety of the fins 11 a from the front and rear sides when viewed in the front-rear direction D2, the housing 12 covers the entirety of the fins 11 a from the left and right sides when viewed in the left-right direction D3, and the housing 12 does not cover the entirety of the fins 11 a from the top and bottom sides when viewed in the up-down direction D1. However, the power conversion device 10 is not limited to this configuration.

[0086] The housing 12 may be configured to cover, for example, some of the fins 11 a from the front side when viewed in the front-rear direction D2, or may be configured to not cover, for example, all of the fins 11 a. The housing 12 may be configured to cover, for example, some of the fins 11 a from the rear side when viewed in the front-rear direction D2, or may be configured to not cover, for example, all of the fins 11 a.

[0087] Furthermore, the housing 12 may be configured to cover, for example, some of the fins 11 a from the left side when viewed in the left-right direction D3, or may not cover, for example, all of the fins 11 a. Furthermore, the housing 12 may be configured to cover, for example, some of the fins 11 a from the right side when viewed in the left-right direction D3, or may not cover, for example, all of the fins 11 a.

[0088] Furthermore, the housing 12 may be configured to cover, for example, a portion of the fins 11 a from above when viewed in the vertical direction D1, or may be configured to cover, for example, the entire fins 11 a. Furthermore, the housing 12 may be configured to cover, for example, a portion of the fins 11 a from below when viewed in the vertical direction D1, or may be configured to cover, for example, the entire fins 11 a.

[0089] (B) Furthermore, in the power conversion device 10 according to the above embodiment, the openings 16a, 14a, 15a are provided in the base surface portion 16 and the side surface portions 14, 15, and the number of openings 16a, 14a, 15a is five. However, the power conversion device 10 is not limited to this configuration.

[0090] The openings 16a, 14a, 15a may be provided on, for example, one surface portion of the base surface portion 16, the side surface portions 14, 15, and the cover surface portion 17, or may be provided on, for example, multiple (two, three, or four) surface portions. The number of openings 16a, 14a, 15a is not particularly limited, and may be, for example, one, two to four, or six or more. The housing 12 may be configured not to have, for example, any of the openings 16a, 14a, 15a.

[0091] (C) Furthermore, the power converter 10 according to the above embodiment is configured to include the air blowing means 13 that blows air between the fins 11 a in the first direction D1 from the upstream end 11 c to the downstream end 11 d of the fins 11 a. However, the power converter 10 is not limited to this configuration.

[0092] For example, the power conversion device 10 may be configured not to include the air blowing means 13. Although not particularly limited, in such a configuration, for example, the housing 12 may be configured to include an air intake port, and air blowing means may be provided inside the panel main body 4 and outside the power conversion device 10, and the air blowing means may be configured to blow air toward the inside of the housing 12 of the power conversion device 10 via the air intake port of the housing 12.

[0093] (D) Furthermore, in the power converter 10 according to the above embodiment, the heat sink 11 blows air between the fins 11a in a vertical direction (first direction) D1 from the lower end (upstream end) 11c of the fins 11a to the upper end (downstream end) 11d of the fins 11a, and the housing 12 has openings 16a, 14a, and 15a that open in second directions (horizontal directions) D2, D3, and D3. However, the power converter 10 is not limited to this configuration.

[0094] For example, the heat sink 11 may be configured to blow air between the fins 11a in the up-down direction D1 from the upper ends to the lower ends of the fins 11a. In such a configuration, the housing 12 may be configured to have openings 16a, 14a, 15a that open in at least one of the front-rear direction D2 and the left-right direction D3.

[0095] Furthermore, for example, the heat sink 11 may be configured to blow air between the fins 11a in the front-to-rear direction D2 from the front end to the rear end (or from the rear end to the front end) of the fins 11a. In such a configuration, for example, the housing 12 may be configured to have an opening that opens in at least one of the up-down direction D1 and the left-right direction D3.

[0096] Furthermore, for example, the heat sink 11 may be configured to blow air between the fins 11a in the left-right direction D3 from the left end (or right end) of the fins 11a to the right end (left end) of the fins 11a. In such a configuration, for example, the housing 12 may be configured to have an opening that opens in at least one of the up-down direction D1 and the front-rear direction D2.

[0097] (E) Furthermore, in the power converter 10 according to the above embodiment, the openings 16a, 14a, and 15a are configured to be spaced apart from the upstream ends (lower ends) 11c of the fins 11a toward the upstream side (lower side) in the first direction (up-down direction) D1 when viewed in the second direction (horizontal direction) D2, D3, and D3. However, the power converter 10 is not limited to this configuration.

[0098] For example, the upstream ends (lower ends) 11c of the fins 11a may be arranged inside the openings 16a, 14a, and 15a when viewed in the second directions (horizontal directions) D2, D3, and D3. Specifically, the upstream ends (lower ends) 11c of the fins 11a may be exposed from the openings 16a, 14a, and 15a when viewed in the second directions (horizontal directions) D2, D3, and D3.

[0099] (F) In addition, in the power converter 10 according to the above embodiment, all of the components 11, 13, 21-27, and 31-37 arranged inside the housing 12 are configured to be separated from the spatial regions 10a, 10b, and 10b that overlap with the fins 11a when viewed in the first direction (vertical direction) D1 and overlap with the openings 16a, 14a, and 15a when viewed in the second direction (horizontal direction) D2, D3, and D3. However, the power converter 10 is not limited to this configuration. For example, some of the components 11, 13, 21-27, and 31-37 arranged inside the housing 12 may be configured to be arranged inside the spatial regions 10a, 10b, and 10b.

[0100] (G) Furthermore, the power converter 10 according to the above embodiment is configured to include components 24-26, 32, 34-36 that are arranged upstream (below) the openings 16a, 14a, 15a in the first direction (up-down direction) D1 and that overlap with the fins 11a when viewed in the first direction (up-down direction) D1. However, the power converter 10 is not limited to this configuration.

[0101] For example, all of the components 11, 13, 21-27, 31-37 arranged inside the housing 12 may be arranged upstream (below) the openings 16a, 14a, and 15a in the first direction (vertical direction) D1 and away from an area overlapping with the multiple fins 11a as viewed in the first direction (vertical direction) D1. With this configuration, for example, the upstream ends (lower ends) 11c of the multiple fins 11a can be cleaned from the upstream side (below) of the housing 12 in the first direction (vertical direction) D1 (for example, from the lower open portion 12b).

[0102] (H) Furthermore, in the elevator control panel 3 according to the above embodiment, the housing 12 is configured to be removably attached to the wall 4a of the panel main body 4. However, the elevator control panel 3 is not limited to such a configuration. For example, the housing 12 may be configured to be unremovably attached to the wall 4a of the panel main body 4 by welding or the like.

[0103] (I) Furthermore, in the elevator control panel 3 according to the above embodiment, the housing 12 is attached to the wall 4a of the panel body 4, so that some openings (specifically, first openings) 16a are covered by the wall 4a of the panel body 4, and other openings (specifically, second openings) 14a, 15a are not covered by the wall 4a of the panel body 4. However, the elevator control panel 3 is not limited to such a configuration.

[0104] For example, a configuration may be adopted in which, by attaching the housing 12 to the wall 4a of the board body 4, all of the openings are covered by the wall 4a of the board body 4. Alternatively, for example, a configuration may be adopted in which, when the housing 12 is attached to the wall 4a of the board body 4, all of the openings are not covered by the wall 4a of the board body 4.

[0105] (J) For example, the order of execution of each step, such as the operations, procedures, steps, and stages, in the methods and apparatuses shown in the claims, specifications, and drawings, can be implemented in any order, as long as the result of a previous step is not used in a subsequent step. For example, even if a description is made using "first," "next," etc. for convenience, this does not mean that the steps must be executed in that order. [Explanation of symbols]

[0106] 1... elevator, 1a... car, 1b... car rail, 1c... processing section, 1d... car rope, 1e... counterweight, 1f... weight rail, 2... car drive section, 2a... sheave, 2b... drive source, 3... elevator control panel, 4... panel body, 4a... wall, 5... mounting means, 10... power conversion device, 10a... first spatial region, 10b... second spatial region, 11... heat sink, 11a... fin, 11b... Base, 11c...upstream end (lower end), 11d...downstream end (upper end), 12...casing, 12a...upper opening, 12b...lower opening, 13...ventilation means, 14...first side surface, 14a...second opening, 15...second side surface, 15a...second opening, 16...base surface, 16a...first opening, 16b...mounting hole, 17...cover surface, 21...first power semiconductor module (electrical component, generating Heat-generating component), 22...Second power semiconductor module (electrical component, heat-generating component), 23...Third power semiconductor module (electrical component, heat-generating component), 24...Electrolytic capacitor (electrical component, non-heat-generating component), 25...Electromagnetic switch (electrical component, non-heat-generating component), 26...First terminal block (electrical component, non-heat-generating component), 27...Second terminal block (electrical component, non-heat-generating component), 31...Upper handle (insulating component), 32...Lower handle (insulating component), 33...First bracket (insulating component), 34...Second bracket (insulating component), 35...Third bracket (insulating component), 36...Fourth bracket (insulating component), 37...Fifth bracket (insulating component), D1...Up-down direction, D2...Front-to-back direction (first horizontal direction), D3...Left-to-right direction (second horizontal direction), X1...Machine room, X2...Hoistway, Y1...Cleaning tool

Claims

1. a panel body disposed inside the elevator shaft or the machine room; a power conversion device that is disposed inside the panel body and supplies power for running the car, The power conversion device is a heat sink having a plurality of fins; An elevator control panel including: a housing in which the heat sink is disposed so as to cover at least a portion of the plurality of fins; and the housing is attached to the panel main body inside the panel main body; the power conversion device includes a blower configured to blow air between the fins in a first direction from upstream ends of the fins to downstream ends of the fins, the housing has an opening that opens in a second direction perpendicular to the first direction, the opening is spaced apart from the upstream ends of the fins toward the upstream side in the first direction when viewed in the second direction, An elevator control panel, wherein the distance that the opening is separated upstream from the upstream end of the fin is 50 mm or less in order to clean the upstream end of the fin from the opening.

2. 2. The elevator control panel of claim 1, wherein all components arranged inside the housing are separated from a spatial region that overlaps with the plurality of fins when viewed in the first direction and overlaps with the opening when viewed in the second direction.

3. the power conversion device includes a component that is disposed upstream of the opening in the first direction and overlaps with the plurality of fins when viewed in the first direction, 3. The elevator control panel according to claim 2, wherein the opening is disposed between the upstream end of the plurality of fins and a component among the components that is disposed closest upstream from the upstream end of the plurality of fins.

4. a panel body disposed inside the elevator shaft or the machine room; a power conversion device that is disposed inside the panel body and supplies power for running the car, The power conversion device is a heat sink having a plurality of fins; An elevator control panel including: a housing in which the heat sink is disposed so as to cover at least a portion of the plurality of fins; and the housing is attached to the panel main body inside the panel main body; the power conversion device includes a blower configured to blow air between the fins in a first direction from upstream ends of the fins to downstream ends of the fins, the housing has an opening that opens in a second direction perpendicular to the first direction, the opening is spaced apart from the upstream ends of the fins toward the upstream side in the first direction when viewed in the second direction, the housing is removably attached to a wall of the panel body, An elevator control panel in which the opening is covered by the wall by attaching the housing to the wall.

5. An elevator control panel according to any one of claims 1 to 4; An elevator comprising: a car that runs using power supplied from the elevator control panel.

6. A power conversion device used in the elevator control panel according to any one of claims 1 to 4.

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