JP2006182462A - Feeder system for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To freely select type of main cable and main sub-cable and to efficiently perform cable installation work in accordance with progress of a building. <P>SOLUTION: This feeder system for elevator is provided with a power supply conversion device 2a installed in a machine room or the like in a hoistway for elevating and lowering an elevator car 16, converting customer power supply into predetermined power supply electric power, and feeding electricity to equipments 5 to 7 for hall at each story floor through a plurality of main cables 11, 11, a plurality of hoistway electricity receiving devices 12, 12 installed at a height position of the shaft decided for each equipment for hall at a plurality of story floors and receiving predetermined power supply electric power through each main cable from the power supply conversion device, and the main sub-cables 13, 13 connected with each main cable 11, 11 introduced into each hoistway electricity receiving device 12, 12 and each branched cable 14... connected with the main sub-cables 13, 13 at a predetermined interval by branching, respectively, to feed electricity into the equipments for hall at each story floor. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator power feeding system that feeds predetermined power to an elevator hoistway peripheral device.

  FIG. 4 is a diagram showing a configuration of a conventional elevator power supply system. This power supply system includes a power receiving panel 1 that houses a power receiving device 1a that receives power from a customer power source installed in a machine room at the top of the hoistway or at the top of the hoistway, and a machine room at the top of the hoistway or at the top of the hoistway. A power converter 2a for converting a customer power source installed and received by the power receiver 1a into a predetermined power source, a control circuit 2b for controlling the drive of an elevator motor, and the like, and the power converter 2 A plurality of power trunk cables 3, 3 for transmitting power from 2a to each floor hall equipment, and power branch cables 4,... Laid on each floor hall equipment at an appropriate interval between each power trunk cable 3, 3. In this configuration, the predetermined power supply converted by the power supply conversion device 2a is supplied to the hall equipment on each floor through the power supply main cables 3, 3 and the power supply branch cables 4,. The hall devices on each floor include, for example, a hall control device 5 installed around the hall on each floor, a hall indicator 6 and a hall button 7 connected to the hall control device 5.

By the way, the following problems have been pointed out in the elevator power supply system as described above.
(1) A power supply main cable 3 and a power supply branch cable 4 branched and connected to the power supply main cable 3 are laid from the machine room or the uppermost part of the hoistway to the hall control device 5 on each floor. Since each power branch cable 4 end and the hall control device 5 are connected by the connector connection method, the size (thickness) of the cables 3 and 4 entering the connector is limited. Therefore, the power trunk cable 3 and the power branch cable 4 that match the cable introduction size of the connector are selected, and are laid from the machine room at the upper part of the hoistway or the uppermost part of the hoistway to the hall control device 5 on each floor. As for cable laying work, each floor is laid down in order from the machine room etc. above the hoistway while rewinding the hoistway cable in which the power main cable 3 and power branch cable 4 wound around the drum are connected in advance. This is the work of laying up to the hall control device 5. Therefore, there is a problem that the power supply main cable 3 and the power supply branch cable 4 cannot be separated and the laying work cannot proceed individually. Further, since the hoistway cable wound around the drum is heavy and large in size, the cable laying work is relatively large.

(2) Also, the cable laying work around the hoistway needs to proceed in accordance with the progress of building construction and predetermined construction categories. As a result, it is not possible to proceed with the work of laying the power branch cable 4 including the hall equipment on each floor first and then laying the power trunk cable 3 later. This poses a problem that the cable laying work around the hoistway is difficult to match the progress of the building construction and the construction classification.

(4) Furthermore, since the hoistway cable in which the power branch cable 4 is branched and connected to the power main cable 3 is wound around the drum and brought to the installation site of the elevator, the power branch cable is determined from the introduction size of the connector as described above. The size (thickness) of 4 cannot be increased. For this reason, in consideration of the influence of electrical characteristics and the like, it is not possible to select a cable having a size extremely different from that of the power branch cable 4. That is, there is a problem that the cable sizes of the power supply branch cable 4 and the power supply main cable 3 cannot be freely selected according to the user's request and the optional equipment on each floor.

  The present invention has been made in view of the above circumstances, and an elevator that can freely select a cable size according to various demands and can efficiently perform a cable laying operation according to the progress of a building or the like. An object is to provide a power supply system.

(1) In order to solve the above-mentioned problem, an elevator power feeding system according to the present invention is installed in a machine room or an upper part of a hoistway for raising and lowering an elevator car, and receives a customer power supply power to be taken in from a customer. Power conversion means that converts power into power and enables power supply to hall devices on each floor, which are peripheral equipment of the hoistway through a plurality of trunk cables, and hoistway determined in advance for each of hall devices on a plurality of floors A plurality of hoistway power receiving devices that receive the predetermined power from the power conversion means through the main cables, and are connected to the main cables introduced into the hoistway power receiving devices. Main branch sub cables and branch cables for supplying power to hall devices on the floors connected to the main trunk sub cables at predetermined intervals. It is a configuration.

  With this configuration, the main cables and the main sub cables derived from the power conversion means can be connected within the hoistway power receiving device, so that the types of both cables are appropriately selected. In other words, it can be laid using an appropriate type of cable according to the user's request.

(2) Further, the present invention is installed at a height position of a hoistway that is determined in advance for each hall device on a plurality of floors, and is provided in plural from the machine room of the hoistway or the upper part of the hoistway for raising and lowering the elevator car. A plurality of hoistway power receiving devices that receive the customer power supply power through the main cable, and are installed in each hoistway power receiving device, and the customer power supply power is predetermined according to the hall devices of the plurality of floors Power conversion means for converting to power, a main sub-cable connected to each main cable introduced into each hoistway power receiving device, and a hall in each floor that is branched and connected to the main sub-cable at predetermined intervals. And a branch cable for supplying power to the appliance.

  The present invention is configured as described above, so that the trunk cable laid from the machine room of the hoistway for raising and lowering the elevator car or the upper part of the hoistway is connected to each hoistway power receiving device at an appropriate height position of the hoistway. The voltage drop of the predetermined power supply to be supplied to the hall equipment on each floor converted by the power conversion means can be suppressed by incorporating the power into the power conversion means, and a plurality of floors can be provided at each power conversion means. It is possible to convert and output to a predetermined power supply for each hall device, and to ensure stable operation of the hall device. Further, by providing the power conversion means at the height position of the hoistway relatively close to the hall devices on the plurality of floors, it is possible to reduce the power supply abnormality and the failure rate of the devices.

(3) In addition, as power supply conversion means installed in each hoistway power receiving device or each hoistway power receiving device, the height position of the hoistway according to the progress status of the hoistway including the building and the work classification If the main sub-cable and each branch cable are installed, the hoistway construction can be carried out according to the progress of the hoistway construction including the building, and work efficiency can be improved. Is possible.

  In addition, if each branch cable is provided with power conversion means for converting the customer power supply power to a predetermined power supply corresponding to the corresponding hall equipment, the voltage drop of the predetermined power supply supplied to the hall equipment is further suppressed. And stable operation of the hall equipment can be ensured.

  Further, among the plurality of hoistway power receiving devices, the customer power supply power connected to the main cable introduced into any hoistway power receiving device and received by the hoistway power receiving device is supplied to the car car equipment. If power supply conversion means for converting to a predetermined power supply according to the requirement is provided, it is possible to sufficiently meet the demand even if various power supplies are required on the car side due to options or other reasons. .

  According to the present invention, it is possible to provide an elevator power supply system that can freely select a cable size according to various demands and that can efficiently carry out cable laying work according to the progress of the building.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram showing an embodiment of an elevator power feeding system according to the present invention. In the figure, components identical or equivalent to those in FIG.

  In this elevator power supply system, power is received by a power receiving panel 1 that houses a power receiving device 1a that receives a customer power source drawn from the outside, in the elevator machine room at the top of the hoistway or at the top of the hoistway, and the power receiving device 1a. A power conversion device 2a for converting customer power into necessary power and an elevator control panel 2 having a control circuit 2b for driving and controlling the electric motor of the elevator are installed. The power conversion device 2a has a function of converting into power supply power necessary for supplying power to hall equipment installed on each floor of the building.

  A plurality of hoistway power receiving devices 12,... Are connected to the output side of the power converter 2a through a plurality of power main cables 11,. Each hoistway power receiving device 12,... Is located at a different height position of the hoistway determined in consideration of the height of the building, the construction classification including the construction time of the building, and the equipment for halls of a plurality of floors to be gathered in advance. Installed. Therefore, each power trunk cable 11,... Is formed in a length corresponding to the distance between the power converter 2a and each hoistway power receiver 12,... It has a function of transmitting power to the hoistway power receiving devices 12,. Each hoistway power receiving device 12,... Has a role as a relay box.

  Further, each of the hoistway power receiving devices 12,... Is individually connected to the power trunk cables 11,... Introduced from the power converter 2a. Each power main cable 11,... And each power main sub cable 13,... Are connected by, for example, a connector connection method in each hoistway power receiving device 12,..., And the power main cable 11 and the power main sub cable 13 are different types. Make the cable selectable. Moreover, if each power source main cable 11,... And each power source main sub cable 13,... Can be connected within each hoistway power receiving device 12,... By, for example, a connector connection method, the power main cable 11 and the power main sub cable. 13 can be completely separated, and the laying work can proceed independently.

  Further, branching cables 14,... For supplying required power to the hall devices on each floor are branchedly connected to the power supply main sub cables 13,. That is, the power main sub-cable 13 is affected by the size of the branch cable 14 but is separable from the power main cable 11. Therefore, the power supply power required for a predetermined hall device for a plurality of floors If a size that can easily be adjusted to the branch cable 14 is selected, the power main trunk cable 13 and the branch cable 14 can be easily connected and the efficiency of the laying operation can be increased. .

  Each branch cable 14 is connected to a hall control device 5 installed around each floor. The hall control device 5 is connected to a hall indicator 6 such as a car traveling direction display and a car current position display, and a hall button 7 for notifying a hall call and call registration for the hall call. Note that the above-described hall devices include a hall control device 5, a hall indicator 6, a hall button 7, and other various types of optional equipment in addition to various equipment defined by an elevator installation standard.

  In the figure, 16 is a passenger car, 17 is a car device, and 18 is a car power trunk cable that supplies power necessary for the car device 17 from the hoistway power receiving device 11. The car power trunk cable 18 is configured as a part of the tail cord of the car 16.

  In the system as described above, the customer power source received by the power receiving device 1a is converted into power source power used in hall equipment on all floors around the hoistway by the power converter 2a, and then each power main cable 11 and 11 and the hoistway power receiving devices 12 and 12, power is transmitted to each power main sub-cable 13 and 13, and the corresponding hall control device 5 is supplied with power through individual branch cables 14.

Therefore, according to the embodiment as described above, there are the following differences in effects when compared with the conventional system.
In the conventional system, as shown in FIG. 4, the power of the hall equipment converted by the power converter 2 a is supplied to the hall controller 5 through the power main cable 3 and the power branch cable 4. At this time, since each power supply branch cable 4 is directly attached to the power supply main cable 3, the power supply main cable 3 is limited to the connector size of the hall control device 5 and consequently the size of the power supply branch cable 4. As a result, it is difficult to make the power main cable 3 and the power branch cable 4 extremely different sizes, and the size of the power main cable 3 depends on the size of the power branch cable 4. This determines the usage size of the power main cable 3 and the power branch cable 4, and in particular, only the power main cable 3 cannot be made large. Therefore, the types of the cables 3 and 4 cannot be selected and used as appropriate, and cannot be laid using an appropriate type of cable according to the user's request.

  Moreover, if the size of the power supply main cable 3 is reduced, the voltage drop of the power supply of the hall equipment converted by the power converter 2a increases, and the power supply power necessary for the hall equipment including the optional equipment is stable. It is difficult to supply power.

  On the other hand, in the system of the present invention, the hoistway power receiving device 12 is installed at an appropriate height position of the hoistway, and the power supply trunk cable 11 is once connected to the intermediate hoistway power receiving device 12 and terminated. Thereby, the size of the power trunk cable 11 and the power trunk sub-cable 13 can be freely selected before and after the hoistway power receiving device 12. For example, by using the power trunk cable 11 having a large size, the power converter 2a It is possible to suppress the voltage drop of the power source converted in step. Further, since the power trunk sub cable 13 is connected to the hoistway power receiving device 12, the size of the power trunk sub cable 13 can be reduced, and the sizes of the power trunk sub cable 13 and the branch cable 14 can be freely selected to some extent. Further, the connection processing of the branch cable 14 to the power main trunk cable 13 can be performed relatively easily.

  Furthermore, another embodiment of the present invention will be described with reference to FIG.

  In the above-described embodiment, the number of power main cables 11 and branch cables 14 to be laid is determined by the number of hall devices on all floors and the voltage drop of the power supply converted by the power conversion device 2a. The number of the road power receiving devices 12 is set equal to the number of the power main cables 11.

  Therefore, in the present invention, a plurality of hoistway power receiving devices 12,... Are installed at the height of the hoistway according to, for example, the progress of the hoistway construction including the building and the work classification, and each hoistway power receiving device 12 is installed. By laying the power main cable 11 on the upper side and connecting the power main sub cable 13 on the lower side, the power main cable can be used according to the construction status including the progress of construction work and the construction period. 11 and the number of power supply main sub cables 13 are determined, the number of installed hoistway power receiving devices 12 is also the same as the number of cables. As a result, for example, when there are a wide variety of construction categories, that is, there are cases in which construction work is performed separately on the elevator machine rooms on the 1st to 10th floors, the 11th to 20th floors, and the 23rd floor.

  When building construction is carried out in such a building order, the hoistway power receiving device 12 is installed near the 10th floor, which is the upper floor position, during construction of the first floor to the tenth floor of the lower building, and the hoistway power receiving device 12 is connected to the hoistway power receiving device 12. Correspondingly, the main power sub-cable 13 and the power branch cable 14, which are connected to the lower side of the power receiving device 12 are laid, and the wiring laying work on the lower floor can be completed irrespective of the construction division or the like on the 11th floor or higher. it can. Then, after the construction of the elevator machine room is completed, the power converter 2a in the elevator machine room and another hoistway power receiving device 12 installed on the upper floor of the eleventh floor or more are installed, and the power converter 2a and the other elevator What is necessary is just to advance the wiring installation work of the power supply main cable 11 between the power receiving apparatuses 12. This can efficiently proceed with the wiring laying work of the power trunk sub-cable 13, the power branch cable 14, and the power trunk cable 11 in accordance with the progress of construction of the building, the construction classification, and the like.

  FIG. 2 is a block diagram showing another embodiment of the elevator power feeding system according to the present invention. In the figure, components identical or equivalent to those in FIG. The same applies to the following embodiments.

  This elevator power supply system is basically the same as that shown in FIG. In particular, the difference is that the power converter 2a that converts the customer power received by the power receiver 1a into the power of the hall equipment is equivalent to, for example, two power converters corresponding to the number of hoistway power receivers 12, for example. This configuration is divided into 2aa and 2ab, and the power converters 2aa and 2ab are individually installed in the hoistway power receiving devices 12 and 12, respectively.

  Therefore, the elevator control panel 2 does not have a function of converting into power supply power required for hall equipment or car equipment, and the customer power received by the power receiving device 1a is directly used as, for example, two power main cables 11, 11 is transmitted to the number of power converters 2aa and 2ab in the hoistway power receiving device 12 installed at different height positions of the hoistway, and the power supply power used in the hall devices of a plurality of floors determined in advance here The power is supplied to the hall control devices 5,... Through the power main cables 12, 12 and the branch cables 14,.

  Therefore, according to this embodiment, it is possible to suppress the voltage drop of the power supply of the hall equipment by drawing the customer power supply having a relatively high power supply voltage into the hoistway. In addition, the power converters 2aa and 2ab are individually installed in the hoistway power receiving devices 12 and 12 installed at different height positions of the hoistway, and a plurality of power converters 2aa and 2ab determined in advance by directly taking in customer power. Therefore, it is possible to reduce the abnormality of the power supply system related to the customer power supply and the failure rate of the hall equipment.

  Also in this embodiment, the hoistway power receiving device 12 is installed in the lower part of the hoistway and the power converter 2ab is installed in the hoistway power receiving device 12 in accordance with the construction classification including the progress of construction work and the construction time. When the installation of the necessary cables 13 and 14 is performed and the machine room at the upper part of the hoistway is completed according to the progress of the building, the hoistway power receiving device 12 and the hoistway power receiving device 12, the power conversion device 2aa can be installed, and the related cables 11, 11, 13, and 14 can be installed.

  FIG. 3 is a block diagram showing still another embodiment of the elevator power feeding system according to the present invention.

  In the system shown in FIG. 2, the power conversion devices 2aa and 2ab are installed for each hoistway power receiving device 12..., But in the present embodiment, each hall control device 5 for each floor has a hall device. Are provided with power conversion devices 2aa1, 2aa2,... 2ab1, 2ab1,. Is connected to the hall control device 5 via the power conversion devices 2aa1, 2aa2,..., 2ab1, 2ab1,. The power is converted into power supply power required for different hall devices, and the hall controller 5 is supplied with power.

  In addition, the power converter 2ac is also connected to the car power main cable 18 connected from the hoistway power receiving device 12 to the car equipment 17 of the car 16, and similarly converted into power supply power required by the car equipment 17. Power is supplied to the car equipment 17.

  Therefore, according to such an embodiment, the power conversion devices 2aa1, 2aa2,..., 2ab1, which convert the customer power supply power into the predetermined power supply corresponding to the hall equipment corresponding to each branch cable 14,. If 2ab1,... Are installed, it is possible to suppress the voltage drop of the power supply supplied to the hall equipment, and to ensure stable operation of the hall equipment.

  Further, if the power converter 2ac is provided in the car power trunk cable 18 connected to the hoistway power receiving device 12, the power supply power suitable for the power consumption of the car equipment 17 including the optional equipment installed around the car 16 is provided. Can be ensured reliably, contributing greatly to the stable operation of the car equipment 17.

  In all the embodiments described above, a plurality of branch cables 14,... Are branched and connected to the power main trunk sub cable 13. However, the power trunk cable 11 and the power main sub cable 13 are connected to the hoistway power receiving device 12 or the power trunk sub cable 13. Since the power supply conversion devices 2aa and 2ab are connected to each other, the size of the power trunk sub-cables 13 can be reduced. For example, the hoistway power reception device 12 or the power conversion device can be provided without providing the branch cables 14. The power source main sub-cables 13,... May be connected directly from the 2aa, 2ab to the hall control devices 5,.

  In addition, this invention is not limited to the said embodiment, In the range which does not deviate from the summary, various deformation | transformation can be implemented. Moreover, each embodiment can be implemented in combination, and in that case, the effect of the combination can be obtained.

The block diagram which shows one Embodiment of the elevator electric power feeding system which concerns on this invention. The block diagram which shows other embodiment of the elevator electric power feeding system which concerns on this invention. The block diagram which shows other embodiment of the elevator electric power feeding system which concerns on this invention. The block diagram of the conventional elevator electric power feeding system.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Power receiving board, 1a ... Power receiving apparatus, 2 ... Elevator control board, 2a, 2aa, 2ab, 2aa1, 2aa2, ... 2ab1, 2ab1, ... Power converter, 5 ... Hall control device, 6 ... Hall indicator, 7 DESCRIPTION OF SYMBOLS ... Hall button, 11 ... Power trunk cable, 12 ... Hoistway power receiving device, 13 ... Power trunk sub cable, 14 ... Branch cable, 16 ... Ride car, 17 ... Car equipment, 18 ... Car power trunk cable

Claims (5)

In an elevator power supply system that takes in customer power supplied from a customer and supplies power to hoistway peripheral equipment,
Installed in the machine room of the hoistway for raising and lowering the elevator car or the upper part of the hoistway, converting the customer power supply power to a predetermined power supply, and for the halls of each floor that is the hoistway peripheral equipment through a plurality of trunk cables Power conversion means for enabling power supply to the device;
A plurality of hoistway power receiving devices that are installed at the height of the hoistway determined for each hall device of a plurality of floors in advance and receive the predetermined power from the power conversion means through the main cables;
A trunk sub-cable connected to each trunk cable introduced into each of the hoistway power receiving devices, and each branch cable feeding power to the hall equipment on each floor that is branched and connected to the trunk sub-cable at a predetermined interval. An elevator power supply system characterized by comprising. In an elevator power supply system that takes in customer power supplied from a customer and supplies power to hoistway peripheral equipment,
Installed at the height of the hoistway determined in advance for each hall device on the plurality of floors, the customer power supply power from the machine room of the hoistway or the upper part of the hoistway for raising and lowering the elevator car through the plurality of main cables A plurality of hoistway power receiving devices,
Power supply conversion means installed in each hoistway power receiving device and converting the customer power supply power into a predetermined power supply corresponding to each of the hall devices of the plurality of floors,
A trunk sub-cable connected to each trunk cable introduced into each of the hoistway power receiving devices, and each branch cable feeding power to the hall equipment on each floor that is branched and connected to the trunk sub-cable at a predetermined interval. An elevator power supply system characterized by comprising. In the elevator electric power feeding system according to claim 1 or 2,
Each hoistway power receiving device or power conversion means installed in each hoistway power receiving device is installed at a height position of the hoistway according to the progress of construction of the hoistway including the building and the work classification, and An elevator power feeding system, wherein the main sub cable and the branch cables are laid. In an elevator power supply system that takes in customer power supplied from a customer and supplies power to hoistway peripheral equipment,
Installed at the height of the hoistway determined in advance for each hall device on the plurality of floors, the customer power supply power from the machine room of the hoistway or the upper part of the hoistway for raising and lowering the elevator car through the plurality of main cables A plurality of hoistway power receiving devices,
A trunk sub-cable connected to each trunk cable introduced into each hoistway power receiving device and each branch cable branched and connected to each trunk sub-cable at a predetermined interval;
Power conversion means connected to each branch cable, and converts the customer power supply power received by the hoistway power receiving device into a predetermined power supply corresponding to the corresponding hall equipment,
An elevator power supply system comprising: hall equipment on each floor connected to the output side of each power conversion means and receiving power from the converted predetermined power supply. In the elevator electric power feeding system according to claim 4,
Of the plurality of hoistway power receiving devices, connected to the main cable introduced into an arbitrary hoistway power receiving device, and the customer power source received by the hoistway power receiving device according to the car car equipment The elevator is provided with power conversion means for converting into predetermined power.

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