Elevator car device

Abstract

The present invention provides an elevator car system that can supply outside air to the interior of the elevator car regardless of whether the car door is opening or closing the entrance to the elevator car. [Solution] The elevator car device comprises a car room having an entrance / exit for people to enter and exit, an outlet for releasing internal air, and an inlet for bringing air into the interior; a car door for opening and closing the entrance / exit; an air conditioning unit for heat-treating the air; an outlet for releasing air from the outlet to the air conditioning unit; and an inlet for bringing air from the air conditioning unit to the inlet, wherein the elevator car device also comprises an outside air supply unit that supplies outside air into the car room when the car door opens the entrance / exit and when the car door closes the entrance / exit and the elevator car device moves in the vertical direction.

Description

Technical Field

[0001] This application relates to an elevator car device.

Background Art

[0002] Conventionally, for example, an elevator car device includes a car compartment in which people ride, a car door that opens and closes the entrance and exit of the car compartment, and an outside air supply unit that supplies outside air to the inside of the car compartment (for example, Patent Documents 1 to 3). By the way, in the elevator car device according to Patent Documents 1 to 3, outside air is supplied to the inside of the car compartment either when the car door opens the entrance and exit of the car compartment or when the car door closes the entrance and exit of the car compartment.

[0003] For example, in the elevator car device according to Patent Document 1, when the car door opens the entrance and exit of the car compartment, outside air is supplied to the inside of the car compartment, while when the car door closes the entrance and exit of the car compartment, the supply of outside air to the inside of the car compartment is stopped. Also, for example, in the elevator car devices according to Patent Documents 2 and 3, in case of an abnormality, that is, when the car door remains closed at the entrance and exit of the car compartment, outside air is supplied to the inside of the car compartment, while in normal times, that is, when the car door opens the entrance and exit of the car compartment, the supply of outside air to the inside of the car compartment is stopped.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, the challenge is to provide an elevator car system that can supply outside air to the interior of the elevator car regardless of whether the car door is opening or closing the entrance to the elevator car. [Means for solving the problem]

[0006] The elevator car system is A cage chamber having an entrance / exit for people to enter and exit, an outlet for releasing internal air, and an inlet for bringing air into the interior, A cage door for opening and closing the aforementioned entrance, An air conditioning unit that heats the air, An outlet from which air flows out to the air conditioning unit, An elevator car device comprising an inlet section through which air flows from the air conditioning section to the inlet, The system includes an outside air supply unit that supplies outside air into the elevator car when the car door opens the entrance and when the car door closes the entrance and the elevator car device moves vertically. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a schematic diagram of an elevator according to one embodiment. [Figure 2] Figure 2 shows the inside of the basket according to the same embodiment. [Figure 3] Figure 3 is a plan view of the air conditioning system according to the same embodiment. [Figure 4] Figure 4 is a side view of the air conditioning unit. [Figure 5] Figure 5 is a control block diagram of the elevator according to the same embodiment. [Modes for carrying out the invention]

[0008] The following describes one embodiment of an elevator and elevator car system with reference to Figures 1 to 5. Note that the dimensional ratios in the drawings do not necessarily match the actual dimensional ratios, nor do the dimensional ratios between the drawings necessarily match.

[0009] As shown in Figure 1, the elevator 1 may, for example, include a car 2 for people to ride in, a car rope 3 connected to the car 2, a counterweight 4 connected to the car rope 3, a car drive unit 5 that drives the car rope 3 to move the car 2, a car rail 6 that guides the car 2, a counterweight rail 7 that guides the counterweight 4, an air conditioning unit 8 that provides air conditioning inside the car 2, and a control device 9 that controls each part of the elevator 1. Note that a device that includes at least the car 2 and the air conditioning unit 8 is called an elevator car device 1a.

[0010] Furthermore, as in this embodiment, the elevator 1 may be configured such that, for example, it is equipped with a landing door 10 that opens and closes the landing entrance connecting the hoistway X1 and the landing X3, and the car 2 may be configured such that, for example, as shown in Figures 1 and 2, it is equipped with a car compartment 2a in which people ride and a car door 2c that opens and closes the entrance 2b of the car compartment 2a. And, for example, when the car door 2c opens and closes the entrance 2b, the landing door 10 of the landing X3 where the car 2 is stopped may also open and close the landing entrance in conjunction with the car door 2c.

[0011] In each figure, the first direction D1 is the first lateral direction D1 in which the landing door 10 and car door 2c move; the second direction D2 is the second lateral direction D2 perpendicular to the first lateral direction D1, and is the direction in which people move to enter and exit the car 2 by passing through the entrance / exit 2b; and the third direction D3 is the vertical direction D3 perpendicular to the first lateral direction D1 and the second lateral direction D2, respectively.

[0012] In this embodiment, the elevator 1 is configured in a rope-type drive system in which the car drive unit 5 is a hoisting device 5, but it is not limited to this configuration. For example, the elevator 1 may be configured in a hydraulic drive system in which the car drive unit 5 is a hydraulic device, or in a linear motor drive system in which the car drive unit 5 is a linear motor.

[0013] Furthermore, in the elevator 1 according to this embodiment, the hoisting device 5 is located inside the machine room X2, which is provided at the top of the hoistway X1, but the configuration is not limited to this. For example, the hoisting device 5 may be located inside the hoistway X1. The hoisting device 5 may also include, for example, a sheave that is wrapped around the car rope 3 and a drive source (for example, a motor) that drives the sheave.

[0014] Furthermore, in this embodiment, one end of the cage rope 3 is fixed to the cage 2 and the other end of the cage rope 3 is fixed to the counterweight 4, but the configuration is not limited to this. For example, both ends of the cage rope 3 may be fixed to the upper or lower part of the hoistway X1, and the cage rope 3 may be wrapped around the sheave of the cage 2 and the sheave of the counterweight 4, thereby connecting the cage rope 3 to the cage 2 and the counterweight 4, respectively.

[0015] As shown in Figure 2, the elevator car 2a may, for example, be equipped with an outlet 2d for releasing air from inside the elevator car 2a to the outside and an inlet 2e for bringing air from outside the elevator car 2a into the inside, as in this embodiment. Although not particularly limited, the elevator car 2a may also be configured, for example, as in this embodiment, to include a ceiling 2f, a floor 2g, and side walls 2h, with the outlet 2d and inlet 2e being located in the ceiling 2f.

[0016] Further, the car compartment 2a may include, for example, as in this embodiment, a cover 2i that covers the outlet 2d and the inlet 2e from below. Thereby, it is possible to prevent a person inside the car compartment 2a from visually recognizing the outlet 2d and the inlet 2e. Note that FIG. 2 is a view through the side wall 2h in the second lateral direction D2 (the side wall 2h facing the car door 2c in the second lateral direction D2).

[0017] As shown in FIGS. 3 and 4, for example, as in this embodiment, the air conditioner 8 may include an air conditioning unit 11 that heat-treats air, an outflow unit 12 that allows air to flow out from the outlet 2d of the car compartment 2a to the air conditioning unit 11, an inflow unit 13 that allows air to flow into the car compartment 2a from the air conditioning unit 11 through the inlet 2e, and an outside air supply unit 14 that supplies outside air into the car compartment 2a. Although not particularly limited, the air conditioner 8 may be disposed, for example, as in this embodiment, on the upper part of the car 2.

[0018] The air conditioning unit 11 may include, for example, as in this embodiment, a circulation source 11a that circulates air so that air circulates from the outlet 2d to the inlet 2e. Although not particularly limited, the circulation source 11a may be, for example, a fan (a blower). Note that the circulation source 11a may be disposed, for example, as in this embodiment, inside the air conditioning unit 11, or may be disposed, for example, outside the air conditioning unit 11 (e.g., inside the outflow unit 12 or inside the inflow unit 13).

[0019] The air conditioning unit 11 may be capable of only heat-treating air (i.e., dedicated for heating), or may be capable of only cooling air (i.e., dedicated for cooling), or may be capable of heat-treating air and cooling air (i.e., for both heating and cooling). That is, the air conditioning unit 11 may perform at least one of heat-treating air, such as heating and cooling.

[0020] The outlet section 12 may, for example, as in this embodiment, include a box-shaped outlet end 12a fixed to the cage 2 so as to cover the outlet 2d of the cage chamber 2a, and an outlet pipe 12b connecting the outlet end 12a to the air conditioning unit 11. The inlet section 13 may, for example, as in this embodiment, include a box-shaped inlet end 13a fixed to the cage 2 so as to cover the inlet 2e of the cage chamber 2a, and an inlet pipe 13b connecting the inlet end 13a to the air conditioning unit 11.

[0021] The outside air supply unit 14 may, for example, supply outside air to the outlet unit 12, as in this embodiment. Although not particularly limited, the outside air supply unit 14 may, for example, include an outside air pipe 14a connected to the outlet unit 12 and a switching unit 14b that switches between a state in which outside air is supplied to the outlet unit 12 and a state in which the supply is stopped by operation, as in this embodiment.

[0022] As a result, air A3, which is a mixture of the air A1 that flows out from the outlet 2d (outflow air) and the outside air A2 supplied by the outside air supply unit 14 (untreated air), is supplied to the air conditioning unit 11. Then, the air A4, which is obtained by heat-treating the untreated air A3 in the air conditioning unit 11, becomes the air A5 that flows into the inlet 2e (inflow air).

[0023] Therefore, outside air is heat-treated in the air conditioning unit 11 before being supplied to the inside of the elevator car 2a. As a result, even if there is a difference between the temperature of the air inside the elevator car 2a (outflow air A1) and the temperature of the outside air A2 supplied by the outside air supply unit 14, the supply of outside air to the inside of the elevator car 2a can suppress changes in the temperature inside the elevator car 2a.

[0024] While not particularly limited, the switching section 14b may be, for example, an opening and closing means (e.g., a damper, a valve) for opening and closing the outside air pipe 14a, as in this embodiment. The outside air pipe 14a may be connected to the outlet pipe 12b, as in this embodiment, or it may be connected to the outlet end 12a, for example.

[0025] Incidentally, as in this embodiment, for example, the air circulation path for the cage 2a may consist of an outlet section 12, an air conditioning section 11, and an inlet section 13, in order from the upstream side. The point where outside air is supplied to this circulation path is called the connection section 14c of the outside air supply section 14, and in this embodiment, it is the end of the outside air pipe 14a connected to the outlet pipe 12b of the outlet section 12.

[0026] In contrast, the circulation source 11a may be positioned closer to the inlet 2e of the cage chamber 2a than the connection portion 14c of the outside air supply unit 14, as in this embodiment. As a result, the circulation source 11a is positioned downstream of the connection portion 14c of the outside air supply unit 14 in the circulation path.

[0027] Therefore, in order to supply outside air to the inside of the cage chamber 2a, the air circulation source 11a that circulates the outside air can be the same as the air circulation source 11a that circulates air from the outlet 2d to the inlet 2e. As a result, for example, there is no need to provide a separate air circulation source for circulating the outside air.

[0028] Furthermore, the elevator 1 may be equipped with a carbon dioxide detection unit 15 for detecting the carbon dioxide concentration in the air, as in this embodiment. The carbon dioxide detection unit 15 may be located inside the outlet unit 12, as in this embodiment.

[0029] As a result, the carbon dioxide detection unit 15 is positioned outside the outlet 2d of the elevator car 2a, thus preventing the carbon dioxide detection unit 15 from being visible from inside the elevator car 2a. Therefore, for example, a decrease in the aesthetic design of the interior of the elevator car 2a can be prevented.

[0030] Furthermore, since the carbon dioxide detection unit 15 is located inside the outlet unit 12, the air that flows out from inside the elevator car chamber 2a without stagnating is detected by the carbon dioxide detection unit 15. This makes it possible to accurately measure the carbon dioxide concentration of the air inside the elevator car chamber 2a.

[0031] Furthermore, the carbon dioxide detection unit 15 may be located inside the outlet end 12a, for example, as in this embodiment. This ensures that the carbon dioxide detection unit 15 is located upstream of the connection 14c of the outside air supply unit 14 in the circulation path. Therefore, it is possible to detect the carbon dioxide concentration of the air before it is mixed with outside air, allowing for a more accurate measurement of the carbon dioxide concentration of the air inside the cage chamber 2a.

[0032] Furthermore, the carbon dioxide concentration in the air detected by the carbon dioxide detection unit 15 may be measured by the carbon dioxide detection unit 15 itself. In other words, the carbon dioxide detection unit 15 may be configured to be a carbon dioxide concentration measuring device that measures the carbon dioxide concentration in the air.

[0033] Alternatively, for example, the carbon dioxide concentration in the air detected by the carbon dioxide detection unit 15 may be measured by the measuring unit of a carbon dioxide concentration measuring device located separately from the carbon dioxide detection unit 15 (for example, outside the outlet unit 12). In other words, the carbon dioxide detection unit 15 may be the sensor or air intake of the carbon dioxide concentration measuring device.

[0034] As shown in Figure 5, the elevator 1 may, for example, include a weight detection unit 16 for detecting the weight inside the elevator car 2a, a temperature detection unit 17 for detecting the temperature of the air, an input unit 18 for receiving various information, and an output unit 19 for outputting various information, as in this embodiment.

[0035] The weight detection unit 16 may be, for example, a load cell (see Figure 2) positioned below the floor 2g of the elevator car 2a, as in this embodiment. The weight detection unit 16 is not particularly limited and may be, for example, a spring-type suspension weighing device positioned at the end of the elevator car rope 3.

[0036] The temperature detection unit 17 may be located inside the elevator car 2a to measure the air temperature in the elevator car 2a, for example. Alternatively, the temperature detection unit 17 may be located inside the outlet section 12 (specifically, between the connection section 14c of the outside air supply section 14 and the air conditioning section 11) to measure the temperature of the untreated air A3 (see Figure 3). Furthermore, the temperature detection unit 17 may be located inside the inlet section 13 to measure the temperature of the treated air A4 (see Figures 3 and 4).

[0037] The input unit 18 may, for example, include a car input unit 18a (see also Figure 2) located inside the car compartment 2a, a landing input unit 18b (see also Figure 1) located at the landing X3, and an air conditioning input unit 18c located inside (or outside) the car compartment 2a, as in this embodiment. The input units 18, 18a to 18c may be, for example, switches (push-button switches, selector switches, etc.), touch panels, etc.

[0038] The output unit 19 may, for example, include a car output unit 19a (see also Figure 2) located inside the elevator car 2a, and a landing output unit 19b (see also Figure 1) located at the landing X3, as in this embodiment. Although not particularly limited, the output units 19, 19a to 19b may be, for example, display units (e.g., display boards, indicator lights), sound units (e.g., buzzers, speakers), etc.

[0039] The control device 9 may, for example, include an acquisition unit 9a that acquires each piece of information (data), a storage unit 9b that stores each piece of information, an calculation unit 9c that performs calculations on each piece of information, and a control unit 9d that controls each of the units 5, 8, and 19, as in this embodiment.

[0040] The control device 9 is a computer equipped with a processor such as a CPU and MPU (for example, an arithmetic unit 9c and a control unit 9d), memory such as ROM and RAM (for example, an acquisition unit 9a and a storage unit 9b), and various interfaces (for example, an acquisition unit 9a). The processor executes a program stored in memory, and the software and hardware work together to realize each of the parts 9a to 9d of the control device 9.

[0041] The control device 9 may consist of, for example, a single device, or it may consist of, for example, multiple devices that can communicate with each other. Specifically, each part 9a to 9d of the control device 9 may be provided in, for example, a single device, or it may be distributed and provided in, for example, multiple devices that can communicate with each other. Although not particularly limited, for example, the control device 9 that controls the air conditioning system 8 may be located on top of the cage 2, and the control device 9 that controls the cage drive unit 5 may be located inside the machine room X2.

[0042] The configuration of the elevator 1 according to this embodiment is as described above. Next, the air conditioning method of the air conditioning system 8 according to this embodiment will be described. Note that the configuration of the elevator 1 is not limited to the above configuration, and the air conditioning method of the air conditioning system 8 is not limited to the following method.

[0043] First, for example, the temperature detection unit 17 may detect the temperature, and the control device 9 may control the air conditioning unit 11 so that the detected temperature becomes the set temperature. As a result, for example, air circulates through the elevator car 2a, the outlet 12, the air conditioning unit 11, and the inlet 13, and the air conditioning unit 11 heat-treats the air, so that the temperature inside the elevator car 2a can be brought to the set temperature.

[0044] At this time, the carbon dioxide detection unit 15 detects the carbon dioxide concentration in the air, and the control device 9 may control the switching unit 14b of the outside air supply unit 14 so that the detected concentration does not exceed the set concentration. For example, if the detected concentration is equal to or greater than the set concentration, the outside air supply unit 14 may be set to supply outside air to the inside of the elevator car 2a, and if the detected concentration is less than the set concentration, the outside air supply unit 14 may be set to stop supplying outside air to the inside of the elevator car 2a.

[0045] Furthermore, this control is performed in the same way whether the elevator car 2 is positioned at landing X3 and the car door 2c opens the entrance / exit 2b of the elevator car 2a, or whether the car door 2c closes the entrance / exit 2b of the elevator car 2a and the elevator car 2 moves vertically in direction D3. This allows outside air to be supplied to the interior of the elevator car 2a according to the carbon dioxide concentration in the air, regardless of whether the car door 2c is opening or closing the entrance / exit 2b of the elevator car 2a.

[0046] Therefore, for example, the inside of the elevator car 2a can be efficiently ventilated so that the carbon dioxide concentration in the air detected by the carbon dioxide detection unit 15 does not exceed the set concentration. Although not particularly limited, information such as the set temperature, set concentration, and heat treatment method of the air conditioning unit 11 (heating or cooling) may be set by inputting it into the air conditioning input unit 18c.

[0047] Furthermore, although not particularly limited, the output unit 19 (in particular the car output unit 19a) may output (e.g., display) the carbon dioxide concentration in the air detected by the carbon dioxide detection unit 15. Also, although not particularly limited, the output unit 19 (in particular the car output unit 19a, landing output unit 19b) may output (e.g., display) that outside air is being supplied to the inside of the car 2a when outside air is being supplied to the inside of the car 2a.

[0048] Based on the above, as in this embodiment, the elevator 1 is equipped with the elevator car device 1a described above.

[0049] As in this embodiment, the elevator car device 1a comprises a car room 2a having an entrance / exit 2b for people to enter and exit, an outlet 2d for releasing internal air, and an inlet 2e for bringing air into the interior; a car door 2c for opening and closing the entrance / exit 2b; an air conditioning unit 11 for heat-treating the air; an outlet 12 for releasing air from the outlet 2d to the air conditioning unit 11; an inlet 13 for bringing air from the air conditioning unit 11 to the inlet 2e; and an outside air supply unit 14 for supplying outside air into the car room 2a when the car door 2c opens and closes the entrance / exit 2b.

[0050] With this configuration, when the car door 2c opens and closes the entrance / exit 2b of the car compartment 2a, the outside air supply unit 14 supplies outside air to the inside of the car compartment 2a. This allows outside air to be supplied to the inside of the car compartment 2a regardless of whether the car door 2c is opening or closing the entrance / exit 2b of the car compartment 2a.

[0051] Furthermore, as in this embodiment, in the elevator car device 1a, it is preferable that the outside air supply unit 14 supplies outside air to the outlet unit 12.

[0052] With this configuration, outside air is supplied to the outlet 12, and the air conditioning unit 11 heat-treats the air from the outlet 12, including the outside air. As a result, the heat-treated outside air from the air conditioning unit 11 is supplied to the inside of the elevator car 2a.

[0053] Furthermore, as in this embodiment, it is preferable that the elevator car device 1a includes a carbon dioxide detection unit 15 for detecting the carbon dioxide concentration in the air, a switching unit 14b for switching between a state in which the outside air supply unit 14 supplies outside air to the inside of the car 2a and a state in which the supply is stopped, and a control device 9 for controlling the switching unit 14b, wherein the control device 9 controls the switching unit 14b based on the detection by the carbon dioxide detection unit 15.

[0054] With this configuration, the switching unit 14b switches between a state in which outside air is supplied to the inside of the elevator car 2a and a state in which the supply is stopped. The carbon dioxide detection unit 15 then detects the carbon dioxide concentration in the air, and the control device 9 controls the switching unit 14b based on the detection by the carbon dioxide detection unit 15. This makes it possible to supply outside air to the inside of the elevator car 2a according to the carbon dioxide concentration in the air.

[0055] Furthermore, as in this embodiment, in the elevator car device 1a, it is preferable that the carbon dioxide detection unit 15 is located inside the outlet unit 12.

[0056] With this configuration, since the carbon dioxide detection unit 15 is located inside the outlet 12, the carbon dioxide detection unit 15 is positioned outside the outlet 2d of the cage chamber 2a. This makes it possible to prevent the carbon dioxide detection unit 15 from being visible from inside the cage chamber 2a.

[0057] Furthermore, since the carbon dioxide detection unit 15 is located inside the outlet unit 12, the air flowing out from inside the elevator car chamber 2a is detected by the carbon dioxide detection unit 15. This allows for accurate measurement of the carbon dioxide concentration in the air inside the elevator car chamber 2a.

[0058] It should be noted that the elevator 1 and elevator car device 1a are not limited to the configuration of the embodiment described above, nor are they limited to the effects and benefits described above. Furthermore, it goes without saying that the elevator 1 and elevator car device 1a can be modified in various ways without departing from the spirit of the present invention. For example, one or more of the configurations and methods described below may be arbitrarily selected and adopted in the configurations and methods of the embodiment described above.

[0059] (1) In the elevator car device 1a according to the above embodiment, the air circulation source 11a for circulating outside air is the same as the air circulation source 11a for circulating air from the outlet 2d to the inlet 2e. However, the elevator car device 1a is not limited to this configuration. For example, the air circulation source for circulating outside air may be located inside the outside air pipe 14a and provided separately from the air circulation source 11a for circulating air from the outlet 2d to the inlet 2e.

[0060] (2) In addition, in the elevator car device 1a according to the above embodiment, the outside air supply unit 14 supplies outside air to the car compartment 2a by supplying outside air to the outlet unit 12. However, the elevator car device 1a is not limited to this configuration.

[0061] For example, the outside air supply unit 14 may be configured to supply outside air to the inside of the elevator car 2a by supplying outside air to the air conditioning unit 11. Alternatively, the outside air supply unit 14 may be configured to supply outside air to the inside of the elevator car 2a by supplying outside air to the outlet unit 12. Alternatively, the outside air supply unit 14 may be configured to supply outside air directly to the inside of the elevator car 2a without passing through the air conditioning unit 11, the outlet unit 12, and the inlet unit 13.

[0062] (3) In the elevator car device 1a according to the above embodiment, the carbon dioxide detection unit 15 is located inside the outlet unit 12. However, the elevator car device 1a is not limited to this configuration. For example, the carbon dioxide detection unit 15 may be located inside the car compartment 2a.

[0063] (4) In addition, in the elevator car device 1a according to the above embodiment, the control device 9 controls the switching unit 14b based on the detection of carbon dioxide by the carbon dioxide detection unit 15. However, the elevator car device 1a is not limited to this configuration.

[0064] (4-1) For example, the control device 9 may be configured to control the switching unit 14b based on the detection of the weight detection unit 16. With such a configuration, the weight detection unit 16 detects the weight inside the elevator car 2a, and the control device 9 controls the switching unit 14b based on the detection of the weight detection unit 16. This makes it possible to supply outside air to the inside of the elevator car 2a according to the weight inside the elevator car 2a.

[0065] While not particularly limited, for example, the outside air supply unit 14 may be set to supply outside air to the inside of the elevator car 2a when the weight inside the elevator car 2a is greater than or equal to a set value, and to stop supplying outside air to the inside of the elevator car 2a when the weight inside the elevator car 2a remains below the set value for a set period of time. This allows outside air to be supplied to the inside of the elevator car 2a from the time a person is present inside the elevator car 2a until a set period of time has elapsed during which no one is present inside the elevator car 2a.

[0066] Furthermore, although not particularly limited, for example, the outside air supply unit 14 may be configured to supply outside air to the inside of the elevator car 2a when the weight inside the elevator car 2a is greater than or equal to a set value, and to stop supplying outside air to the inside of the elevator car 2a when the weight inside the elevator car 2a is less than the set value.

[0067] Furthermore, although not particularly limited, the control device 9 may be configured to control the switching unit 14b based on the detections of the carbon dioxide detection unit 15 and the weight detection unit 16, respectively. For example, the outside air supply unit 14 may be configured to supply outside air to the inside of the elevator car 2a when the weight inside the elevator car 2a is above a set value, and the outside air supply unit 14 may be configured to stop supplying outside air to the inside of the elevator car 2a when the carbon dioxide concentration in the air detected by the carbon dioxide detection unit 15 is below the set value.

[0068] (4-2) Alternatively, for example, the control device 9 may be configured to control the switching unit 14b based on time. Although not particularly limited, for example, the configuration may be such that the state in which the outside air supply unit 14 supplies outside air to the inside of the elevator car 2a and the state in which the outside air supply unit 14 stops supplying outside air to the inside of the elevator car 2a are repeated for each set time.

[0069] (4-3) Alternatively, for example, the outside air supply unit 14 may not have a switching unit 14b and may always maintain a state in which outside air is supplied to the inside of the cage 2a. Although not particularly limited, for example, the outside air pipe 14a may always be open.

[0070] (5) Alternatively, in the elevator car device 1a, for example, the control device 9 may be configured to control the amount of outside air supplied by the outside air supply unit 14 based on the detection of carbon dioxide by the carbon dioxide detection unit 15. Although not particularly limited, for example, the higher the carbon dioxide concentration, the more outside air can be supplied, thereby efficiently supplying outside air into the car 2a. [Explanation of Symbols]

[0071] 1...Elevator, 1a...Elevator car mechanism, 2...Car, 2a...Car room, 2b...Entrance / Exit, 2c...Car door, 2d...Outlet, 2e...Inlet, 2f...Ceiling, 2g...Floor, 2h...Side wall, 2i...Cover, 3...Cage rope, 4...Counterweight, 5...Cage drive unit (hoisting device), 6...Cage rail, 7...Weight rail, 8...Air conditioning unit, 9...Control device, 9a...Acquisition unit, 9b...Storage unit, 9c...Calculation unit, 9d...Control unit, 10...Landing door, 11...Air conditioning unit, 11a...Flow source, 12...Outlet, 12a...Outlet end Section, 12b...Outlet pipe, 13...Inlet section, 13a...Inlet end, 13b...Inlet pipe, 14...Outside air supply section, 14a...Outside air pipe, 14b...Switching section, 14c...Connection section, 15...Carbon dioxide detection section, 16...Weight detection section, 17...Temperature detection section, 18...Input section, 18a...Car input section, 18b...Landing input section, 18c...Air conditioning input section, 19...Output section, 19a...Car output section, 19b...Landing output section, D1...First lateral direction, D2...Second lateral direction, D3...Vertical direction, X1...Housing shaft, X2...Machine room, X3...Landing

Claims

[Claim 1] A cage chamber having an entrance / exit for people to enter and exit, an outlet for releasing internal air, and an inlet for bringing air into the interior, A cage door for opening and closing the aforementioned entrance, An air conditioning unit that heats the air, An outlet from which air flows out to the air conditioning unit, An elevator car device comprising an inlet section through which air flows from the air conditioning section to the inlet, An elevator car device comprising: an outside air supply unit that supplies outside air to the interior of the car compartment when the car door opens the entrance and when the car door closes the entrance and the elevator car device moves in the vertical direction.

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