JP2022050228A - Emergency external power conversion unit - Google Patents

Abstract

To provide a low-cost emergency external power conversion unit which can easily supply power from an external power supply to a supply target electric apparatus when there is no commercial power supply at a power outage, etc., without significantly increasing facility cost and maintenance work.SOLUTION: The emergency external power conversion unit includes: conversion means connected to a battery, as an external power supply having a connection terminal, to convert power being input from the battery into power having the same voltage as a commercial power supply; a first cable having, on one end, connector means to connect to the battery connection terminal, so as to connect the conversion means to the battery; a second cable which connects the conversion means to the facility to which the commercial power supply is to be supplied; and first cable harness means having, on one end, connector means with which the battery connection terminal is to be engaged, and on the other end, connector means with which the connector means of the first cable is to be engaged.SELECTED DRAWING: Figure 7

Description

INDUSTRIAL APPLICABILITY The present invention is an emergency external device suitable for converting the electric power of an external power source into electric power having the same voltage as the commercial power source and supplying the electric power to the supplied equipment such as an electric device when there is no supply of commercial power such as in the event of a power failure. Regarding the power conversion unit.

For example, as a device using an electric device such as a motor, an opening / closing body device will be described below as an example.
Opening and closing devices such as shutter curtains are installed at the entrances and windows of structures including buildings such as houses, buildings, factories, warehouses, and garages, or at openings such as internal passages and spaces, and open and close them. By moving the body, the opening is opened and closed. This opening / closing device includes a slat curtain made of a large number of strip-shaped slat materials, a pipe grill curtain made by connecting a large number of pipe materials with a link material, and a panel curtain made of a single piece or a large number of connected panel materials. An opening / closing body such as a net curtain made of a net material, a sheet curtain made of a sheet material made of synthetic resin or cloth fiber, or a composite curtain made of a composite member thereof is extended and lowered from the upper part of the opening to cover the entire opening. It is configured to close. In such an opening / closing body device, the opening / closing operation of the opening / closing body is often performed electrically. Examples of the electric opening / closing device include an electric shutter device, an electric door device, and an electric awning device.

Generally, in an electric opening / closing device, an opening / closing body for raising / lowering / opening / closing a space for opening / closing a structure such as a building is driven up / down by an opening / closing machine (motor or the like) arranged behind the ceiling of the structure or in a shutter case. It has become like. In such an electric opening / closing device, for example, there is a configuration in which the opening / closing body itself is lowered by its own weight and held in a fully closed state by performing a predetermined operation in the event of a power failure. Therefore, conventionally, when opening the fully closed opening / closing body in the event of a power failure, for example, the output rotating shaft (rotating shaft) of the opening / closing machine is manually opened and closed by rotating it with a manual operation handle provided in the vicinity thereof. I was trying to roll up my body and open it.

In such an electric opening / closing device, even in the event of a power failure due to a fire, the opening / closing device is electrically operated by connecting the hose of the fire brigade to the water supply port (water supply port) and discharging water (water supply). Some are equipped with an emergency power supply configured to open the open / close body in an emergency. The emergency power supply device is configured by mounting a standby power supply consisting of a battery and electronic components such as an inverter device. External devices such as an automatic closing device for an opening / closing device, an obstacle detection device, a harm prevention interlocking repeater, an operation switch equipped with a start button, and a water pressure switch, and an external power supply line are connected to this emergency power supply device. There is. As an opening / closing device provided with such an emergency power supply device, the one described in Patent Document 1 is known. In addition, there are some that use a generator to supply electric power to the control device of a switch (motor, etc.) when the commercial power supply fails.

Japanese Unexamined Patent Publication No. 2009-79457

When operating using the manual operation handle in the event of a power failure of the commercial power supply, the operator opens and closes the opening / closing body while climbing up to a stepladder or workbench and opening the inspection port provided at the top. It was necessary and the operation was very troublesome. On the other hand, when the emergency power supply device as described in Patent Document 1 is provided, the equipment cost increases and it is necessary to replace the battery of the backup power supply regularly. Alternatively, when a generator is used, the equipment cost increases, and maintenance such as refueling the generator and oil change is required.

The present invention has been made in view of the above points, and is supplied from an external power source to an electric device or the like when there is no supply of commercial power such as during a power outage without significantly increasing equipment costs and maintenance work. An object of the present invention is to provide an emergency external power conversion unit capable of easily supplying electric power to equipment at a low cost.

The first feature of the emergency external power conversion unit of the present invention is a conversion means connected to a battery as an external power source having a connection terminal and converting the power input from the battery into power having the same voltage as the commercial power supply. At one end thereof, there is a connector means for connecting to the connection terminal of the battery, a first cable for connecting the conversion means and the battery, and a second cable for connecting the conversion means and the equipment to be supplied with commercial power. And a first cable harness means having a connector means engaged with the connector means of the battery at one end and a connector means engaging with the connector means of the first cable at the other end. When the connection terminal and the connector means of the first cable cannot be fitted, the connection terminal of the battery and the connector means of the first cable are connected via the first cable harness means, and the conversion means is used. The purpose is to supply the converted power to the equipment to be supplied.
In the present specification, the term "supplied equipment" means that commercial power is supplied in normal times, and power based on an external power source is supplied when there is no commercial power supply such as during a power failure, or in normal times. It refers to equipment such as electrical equipment that is not supplied with power such as commercial power, but is supplied with power based on an external power supply in an emergency (as needed).

The present invention provides an emergency external power conversion unit as a disaster prevention device for an emergency such as a power failure, and easily supplies power from an external power source to the supplied equipment in an emergency such as a power failure. Emergency disaster prevention equipment that can be used is provided at low cost.
Then, since the emergency external power conversion unit includes the conversion means, the first cable, and the second cable, the necessary connection work can be immediately performed by preparing the battery and the emergency external power conversion unit.
However, the first cable connecting the conversion means and the battery needs to have a length of about several meters for the connection work, and when there are multiple types of battery connection terminals, the battery connection has been conventionally performed. It was necessary to prepare a plurality of types of long first cables having connector means suitable for the terminals.
Therefore, by providing a first cable harness means having a connector means that engages with the connector means of the battery at one end and a connector means that engages with the connector means of the first cable at the other end, the battery is provided. When the connection terminal of the first cable and the connector means of the first cable cannot be fitted, the connection terminal of the battery and the connector means of the first cable can be connected via the first cable harness means. Become. Therefore, as the first cable, only one cable having one type of connector means needs to be prepared, and it is not necessary to prepare a plurality of long first cables having different connector means, which is inexpensive. And it has a small structure.

The second feature of the emergency external power conversion unit of the present invention is that in the emergency external power conversion unit described in the first feature, the conversion means is connected to an in-vehicle battery as an external power source mounted on an electric forklift. The purpose is to convert the electric power input from the in-vehicle battery into electric power having the same voltage as the commercial power source.

For example, the opening / closing device is installed in a structure such as a house, a building, a factory, a warehouse, a garage, etc. Vehicles such as cars and cars can easily approach. In particular, electric forklifts are often used in buildings such as factories, warehouses, and garages, and electric forklifts can be easily prepared. The electric forklift is equipped with a battery, and by using the in-vehicle battery, the in-vehicle battery can be used in the event of a power failure without using an emergency power supply device or a generator as described in Patent Document 1. It becomes possible to easily supply power to the supply equipment. Further, since the voltage of the in-vehicle battery of the electric forklift is equal to or higher than the voltage of the in-vehicle battery of the automobile, it can be easily converted into the same voltage as the commercial power source.

The in-vehicle battery of the electric forklift is provided with a connector as a connection terminal. There are two types of connectors for in-vehicle batteries of electric forklifts, large and small. For in-vehicle batteries for large electric forklifts, connectors of large size are mainly used, and for in-vehicle batteries for small electric forklifts, mainly. A small size connector is used for. Large size connectors and small size connectors are not compatible, and when using the in-vehicle battery of an electric forklift as an external power source, conventionally, multiple long first cables having connectors of each size are used. I had to prepare.

In the present invention, when the size of the connector of the vehicle-mounted battery of the electric forklift and the size of the connector of the first cable are different, the connector of the vehicle-mounted battery and the connector of the first cable are connected via the first cable harness means. Connecting. Therefore, as the first cable, only one cable having a connector of either large or small size needs to be prepared, and it is not necessary to prepare a plurality of long first cables having connectors of each size. , Inexpensive and compact configuration.

The third feature of the emergency external power conversion unit of the present invention is the connector means that engages with the battery connection terminal of the first cable harness means in the emergency external power conversion unit according to the first feature. Is a booster clip.
By using a booster clip as the connector means that engages with the connection terminal of the battery of the first cable harness means, it becomes possible to use a battery having a terminal (electrode) other than the connector as the connection terminal, and the versatility is increased. ..

The fourth feature of the emergency external power conversion unit of the present invention is that in the emergency external power conversion unit described in the third feature, the conversion means is an in-vehicle battery as an external power source mounted on an automobile or a motorcycle. Or, it is connected to a car engine starter and converts the electric power input from the in-vehicle battery or the car engine starter into electric power having the same voltage as the commercial power source.
In the present specification, the "vehicle engine starter" is a portable type for starting an engine in place of an in-vehicle battery when the electric power of the in-vehicle battery of an automobile, a motorcycle, a truck, a heavy machine, etc. is low. A power supply device (so-called "jump starter").
By using an in-vehicle battery mounted on an automobile or a motorcycle, or an engine starter for an automobile, an in-vehicle battery or an in-vehicle battery can be used in the event of a power failure without using an emergency power supply device or a generator as described in Patent Document 1. It is possible to easily supply electric power from the vehicle engine starter to the equipment to be supplied.

The in-vehicle battery does not need to be removed from the vehicle such as an electric forklift or an automobile. The vehicle equipped with the in-vehicle battery is moved to the vicinity of the opening / closing device, and the in-vehicle battery is attached to the vehicle as a conversion means. All you have to do is connect. In-vehicle batteries as an external power source are not limited to electric forklifts and automobiles, but are entrances and windows, or openings such as internal passages and spaces in structures such as houses, buildings, factories, warehouses, and garages. Including those mounted on other vehicles that can travel around or inside the vehicle.

The fifth feature of the emergency external power conversion unit of the present invention is that in the emergency external power conversion unit according to the first, second, third, or fourth feature, the second cable is one end thereof. It has a connector means for connecting to the connector means provided in the supplied equipment, one end has a connector means for engaging with the connector means of the second cable, and the other end has an alternating current or direct current. It is provided with a second cable harness means having a general purpose outlet for use.

The first cable has a connector means at one end thereof for connecting to the connection terminal of the battery, and the second cable has a connector means at one end thereof for connecting to the connector means provided in the supplied equipment. Therefore, the work of connecting the conversion means to the battery and the work of connecting the conversion means to the supplied equipment become easy.
Then, normally, the connector means of the second cable can be removed from the connector means provided in the equipment to be supplied with the commercial power supply, and the emergency external power conversion unit can be stored in another storage place, so that the commercial power supply can be stored. When there is no supply, connect the connector means of the second cable of the emergency external power conversion unit brought from the storage location to the connector means of the supplied equipment of the commercial power supply, and the electricity that requires the qualification of an electrician is required. It is possible to supply the required power from the conversion means to the equipment to be supplied with commercial power without any construction work.
Further, by providing a general-purpose outlet for AC or DC at the other end of the second cable harness, when there is no commercial power supply such as during a power failure, the second cable harness can be used, for example, a lighting device. Power can be supplied to equipment to be supplied that has a general-purpose outlet plug such as a temperature controller, heater, and refrigerator, increasing versatility.

The sixth feature of the emergency external power conversion unit of the present invention is that in the emergency external power conversion unit according to the fifth feature, the first cable and / or the second cable has the other end thereof. , It is connected to the conversion means in advance.
Since the other end of the first cable and / or the second cable is connected to the conversion means in advance, when using the emergency external power conversion unit, the first cable and the second cable are converted again. There is no need to perform the work of connecting to the means, and the minimum necessary work can be performed quickly.

The seventh feature of the emergency external power conversion unit of the present invention is the conversion means in the emergency external power conversion unit according to the first, second, third, fourth, fifth, or sixth feature. A carrying case for accommodating the first cable and the second cable, the carrying case holds the case body having a take-out port, the lid covering the take-out port of the case body, and the lid in an open state. It has a stopper means, and the stopper means has a support member for supporting the lid and a moving piece for fixing the support member and releasing the fixing of the support member.
When the first cable and the second cable are taken out from the outlet of the case body of the carrying case, if the lid of the carrying case is not fixed in the open state, the lid is accidentally closed and the hand or the first cable is used. And the second cable may be pinched between the case body and the lid. By providing the stopper means for holding the lid in the open state, there is no possibility that the hand or the first cable and the second cable are pinched between the case body and the lid. Then, by providing the stopper means with a support member for supporting the lid and a moving piece for fixing the support member and releasing the fixing of the support member, the lid can be opened without fear of pinching a finger in the stopper means. The state can be released and the lid can be closed.

The eighth feature of the emergency external power conversion unit of the present invention is the emergency external power conversion unit according to the first, second, third, fourth, fifth, sixth, or seventh feature. The conversion means includes an input voltage detecting means for detecting and displaying the magnitude of the input voltage, and an output voltage detecting means for detecting and displaying the magnitude of the output voltage.
When a failure occurs in the input system or output system of the conversion means, it is difficult to identify the location of the failure, and the work of measuring the voltage of the input line and output line using a measuring device such as a tester is an emergency such as a disaster or a power outage. Sometimes it's difficult. The input voltage detecting means is used to detect and display the magnitude of the voltage input to the converting means, and the output voltage detecting means is used to detect and display the magnitude of the voltage output from the converting means. Therefore, it becomes easier to identify the location of the failure, and the convenience of maintenance is improved.

The ninth feature of the emergency external power conversion unit of the present invention is the emergency external power supply according to the first, second, third, fourth, fifth, sixth, seventh, or eighth feature. In the conversion unit, the supplied equipment drives the opening / closing means provided at the peripheral edge of the opening, the opening / closing machine for electrically operating the opening / closing means, and the opening / closing machine to electrically control the operation of the opening / closing means. An emergency external power conversion unit, which is a power switching means of a switch device including a control means for switching and a power switching means capable of supplying power based on an external power supply to the control means when there is no supply of commercial power. However, the power converted by the conversion means is supplied to the power switching means.
An emergency external power conversion unit for a switch that can easily supply power from a battery to a switch (motor) of the switch is provided.

The tenth feature of the emergency external power conversion unit of the present invention is that in the emergency external power conversion unit according to the ninth feature, when the power switching means is supplied with commercial power, the power of the commercial power is supplied. It is to supply to the control means.
When there is a supply of commercial power, an emergency external power conversion unit for an open / close device operated using the commercial power is provided.

According to the emergency external power conversion unit of the present invention, power can be easily supplied from the external power supply to the supplied equipment when there is no commercial power supply such as during a power failure without significantly increasing the equipment cost and maintenance work. An emergency external power conversion unit that can be used can be provided at low cost.

It is a figure which shows an example of the schematic structure of the shutter device which is an opening / closing body device. It is a figure explaining the operation of each apparatus in the shutter apparatus shown in FIG. It is a figure which shows an example of the circuit structure of the external power source conversion apparatus of the emergency external power source conversion unit which concerns on this invention. It is a figure which shows an example of the structure of a DC / AC conversion circuit. It is a figure which shows an example of the emergency external power source conversion unit which concerns on this invention. FIG. 6A is a side view of the carrying case, and FIG. 6B is a bottom view of the carrying case. FIG. 7A is an example of an external view of an external power conversion device, a DC cable, an AC cable, and a first cable harness, and FIG. 7B is an example of an external view of a cable storage device. FIG. 8A is an external view of the cable storage device around which the AC cable is wound, and FIG. 8B is an external view of the cable storage device around which the DC cable is further wound. It is a figure which shows an example of the usage method display. It is a figure explaining the structure and use example of the 1st cable harness by one Embodiment of this invention. It is a figure which shows the 1st cable harness by another embodiment of this invention. It is a figure which shows the 2nd cable harness by one Embodiment of this invention. It is a figure explaining the stopper tool by one Embodiment of this invention. It is a figure explaining the display of the input voltage detector and the output voltage detector of the external power conversion device, and the failure part.

Hereinafter, preferred embodiments of the emergency external power conversion unit according to the present invention will be described with reference to the accompanying drawings. In this embodiment, an emergency external power conversion unit for a shutter device provided with a shutter curtain that is opened and closed up and down as an opening and closing means will be described as an example. FIG. 1 is a diagram showing an example of a schematic configuration of a shutter device which is an opening / closing body device. In FIG. 1, the opening / closing body device 10 is a shutter device that opens / closes an opening at an entrance / exit up and down.

The opening / closing device 10 is provided at the opening of the building, and is basically a shutter case 11, a shutter curtain 12, guide rails 13, 14, a take-up shaft 15, a chain 16, a motor 17, a position detecting device 172, and the like. It includes a control device 18, an obstacle detector 185, an operation switch 19, a power supply switching device 20, and the like. Normally, the opening / closing body device 10 drives a motor 17 which is an opening / closing machine to control opening / closing in response to an operation of the operation switch 19. Further, in the opening / closing body device 10, the shutter curtain 12 is held in an open state in which the shutter curtain 12 is wound around the take-up shaft 15 by a mechanical holding mechanism (not shown), and in this open state, a fire is generated from the outside. When an emergency signal BS or the like indicating generation is input to the control device 18, the holding of the open state by the holding mechanism is released, and the shutter curtain 12 naturally descends under its own weight to automatically close the opening. It also has a function to

The guide rails 13 and 14 are provided on both ends of the opening of the building so as to be in contact with both ends of the shutter curtain 12, and have a U-shaped guide groove having a cross-sectional shape extending from the gusset to the floor. It is composed of a metal member having a member or a member equivalent thereto. The shutter curtain 12 rises and falls along the guide grooves of the guide rails 13 and 14, and opens and closes the opening.

The take-up shaft 15 is rotatably provided on both end sides of the shutter case 11 to take up and rewind the shutter curtain 12. The chain 16 connects a main sprocket provided on the rotation shaft of the motor 17 and a driven sprocket provided on the rotation shaft of the take-up shaft 15. Therefore, the rotational driving force of the motor 17 is transmitted to the take-up shaft 15 side via the chain 16, and when the motor 17 rotates, the take-up shaft 15 rotates via the chain 16 and the shutter curtain 12 opens and closes. It is designed to be controlled.

The motor 17 is provided with a position detecting device 172 (see FIG. 2) for detecting the rotational position, that is, the open / closed position and the open / closed state of the shutter curtain 12. The position detection device 172 is composed of a pulse generation type rotary encoder or the like. Since a pulse signal corresponding to the rotation of the motor 17 is output to the control device 18, the rotation position of the motor 17 and the position at the opening of the closed end of the shutter curtain 12 are controlled based on the generation status of this pulse. The device 18 will be calculated.

The control device 18 has a microcomputer configuration, and power is supplied from the power supply line AC via the power supply switching device 20. The control device 18 rotates the motor 17 based on a control signal corresponding to the operation state of each operation button on the operation switch 19, a signal from the position detection device 172 provided on the motor 17, a signal from the protector, and the like. It controls or releases the holding mechanism based on the emergency signal BS.

The operation switch 19 has an ascending (open) button 19A, a stop (stop) button 19B, and a descending (closed) button 19C as control switches corresponding to each operation of opening / closing, and corresponds to the operation state of each of these buttons. The control signal is output to the control device 18. Although not shown in FIG. 1, the control device 18 can also be operated by a wireless remote control device.

The emergency signal BS is a signal having a voltage of 24 [V] supplied from an external control room or the like in an emergency such as a fire, and is input to a harm prevention interlocking repeater (not shown) in the control device 18. In addition, together with the input of the emergency signal BS from the outside, or instead, a temperature sensor or the like is provided inside the shutter case 11 in the vicinity of the opening of the magus portion, that is, in the portion where the shutter curtain 12 moves up and down. You may. As this temperature detector, the contact is always on, and when the contact reaches a predetermined temperature (arbitrary temperature in the range of 100 to 300 degrees Celsius), the contact is opened and turned off. It may be configured by a high temperature bimetal thermostat or the like, and when a contact is opened, a signal indicating that a fire or the like has occurred may be output as a signal corresponding to an emergency signal BS.

The obstacle detector 185 has a transmitter provided at the lower end (seat plate) of the shutter curtain 12, and when an obstacle is detected, a sensing signal corresponding to the movement of the built-in seat plate switch is transmitted to the control device 18. It is configured to transmit, and when the return movement of the seat plate switch is performed by removing obstacles thereafter, a return signal is transmitted. The transmission of the signal from the transmitter of the obstacle detector 185 to the control device 18 is not limited to the wired method as shown in the figure, but may be a wireless method operated by using a battery as a power source. Further, a seat plate switch that moves by contact with an obstacle is provided at the lower end of the shutter curtain 12, and a tape switch provided along the height direction of the guide rails 13 and 14 by the moving force of the seat plate at the time of contact with an obstacle. It may be configured to press the button or output a sense signal from the tape switch to the control device 18 by wire. In addition, a phototube, LED, or other light-receiving sensor may be provided at the opening to detect obstacles in a non-contact manner by image recognition or the like.

FIG. 2 is a diagram illustrating the operation of each device in the shutter device shown in FIG. The control device 18 controls the motor 17 by the electric power supplied from the power supply switching device 20 based on each signal from the operation switch 19, the obstacle detector 185 and the position detection device 172, and the emergency signal BS. In FIG. 2, the connection relationship of the commercial power supply to other than the control device 18 is not shown.

The power supply switching device 20 of this example is a manual switch that is manually switched by the operator, and is normally connected to the power supply line AC side, and transfers the power of the commercial power supply supplied from the power supply line AC to the control device 18. Supply. Then, in the event of a power failure of the commercial power supply, the operator manually switches the power supply switching device 20 to the external power conversion device 30 side, and the power switching device 20 supplies the power supplied from the external power conversion device 30 to the control device 18. do. The power switching device 20 is provided with a connector 20a for connecting the external power conversion device 30 of the emergency external power conversion unit described later.
As the power supply switching device 20, an automatic switch that detects the power of the commercial power supply supplied from the power supply line AC and automatically switches to the external power supply conversion device 30 side when the commercial power supply fails may be used. Further, when returning from the external power source to the commercial power source again, the switch may be manually switched or a switch may be provided to switch automatically.

The external power conversion device 30 of the emergency external power conversion unit, which will be described later, converts the DC power input from the in-vehicle battery 40 into three-phase AC power having the same voltage of 200 [V] as the commercial power supply, and switches the power supply. Output to device 20. Here, the in-vehicle battery 40 is a battery mounted on a vehicle such as an electric forklift or an automobile, and is usually 24 or 48 [V] for an electric forklift, 12 [V] for a gasoline vehicle, and 24 [V] for a diesel vehicle. The voltage of the battery is used. In the examples shown in FIGS. 1 and 2, an in-vehicle battery 40 of an electric forklift having a connector 40a as a connection terminal is shown.

In FIG. 1, the opening / closing device 10 is installed in a structure such as a house, a building, a factory, a warehouse, a garage, or the like, at an entrance or a window, or an opening such as an internal passage or space, or in the vicinity thereof. Therefore, vehicles such as forklifts and automobiles can easily approach. A battery is mounted on a vehicle such as an electric forklift or an automobile, and by using the in-vehicle battery 40, an emergency power supply device, a generator, or the like as described in Patent Document 1 is not used. It is possible to easily open and close the opening / closing body in the event of a power failure.

The in-vehicle battery 40 does not need to be removed from a vehicle such as an electric forklift or an automobile, and the vehicle equipped with the in-vehicle battery 40 is moved to the vicinity of the opening / closing device 10 The connection work with the power conversion device 30 may be performed. The in-vehicle battery 40 as an external power source is not limited to electric forklifts and automobiles, but is not limited to electric forklifts and automobiles. Including those mounted on other vehicles that can travel around or inside the vehicle.

When using an in-vehicle battery of a gasoline vehicle or a diesel vehicle, the in-vehicle battery is over-discharged by driving the engine in an idling state while the shutter curtain 12 of the opening / closing body device 10 is being opened / closed. (So-called "dead battery") is avoided.

FIG. 3 is a diagram showing an example of the circuit configuration of the external power conversion device of the emergency external power conversion unit according to the present invention. In this example, a common external power conversion device 30 is provided regardless of the voltage of the vehicle-mounted battery 40 (48, 24 or 12 [V]), and manual switching is performed according to the voltage of the vehicle-mounted battery 40. The external power conversion device 30 includes a circuit breaker 31, a DC / AC conversion circuit 32, an input voltage changeover switch 33, an input voltage detector 34, and an output voltage detector 35. The positive electrode side terminal of the vehicle-mounted battery 40 is connected to the circuit breaker 31 as a direct current input (+), and the negative electrode side terminal is connected to the circuit breaker 31 as a direct current input (−). The circuit breaker 31 supplies an input voltage to the DC / AC conversion circuit 32, and when the input current reaches a predetermined cutoff value, the breaker 31 cuts off the input current from the vehicle-mounted battery 40.

In the example of FIG. 3, the circuit breaker 31 is provided only on the input side of the external power conversion device 30, but a circuit breaker may be provided on the output side of the external power conversion device 30 as well. By providing the circuit breaker 31 on the input side of the external power conversion device 30, even if the input current from the vehicle-mounted battery 40 is an abnormally large current, the input current is cut off and the possibility of malfunction is avoided. Further, by providing the circuit breaker on the output side of the external power conversion device 30, even if the external power conversion device 30 fails, there is a possibility that an abnormally large current will be supplied to the power switching device 20.

FIG. 4 is a diagram showing an example of the configuration of a DC / AC conversion circuit. The DC / AC conversion circuit 32 includes a switching circuit 32a, a voltage switching circuit 32b, a transformer 32c, a rectifier circuit 32d, an inverter circuit 32e, a filter circuit 32f, and a switching control / driver circuit 32g. The switching circuit 32a turns on / off the primary current supplied to the primary side input terminal of the transformer 32c according to the control of the switching control / driver circuit 32g.

The transformer 32c has a plurality of primary input terminals for different input voltages of 48, 24 or 12 [V]. A voltage switching circuit 32b is provided between the switching circuit 32a and the transformer 32c. The operating state of the input voltage changeover switch 33 is transmitted to the voltage changeover circuit 32b via the switching control / driver circuit 32g. The voltage switching circuit 32b switches the connection of the vehicle-mounted battery 40 to the primary input terminal of the transformer 32c via the circuit breaker 31 and the switching circuit 32a according to the operating state of the input voltage switching switch 33. By switching the voltage switching circuit 32b, the transformer 32c changes the transformation ratio according to the voltage of the in-vehicle battery 40, and changes the primary side voltage of 48, 24 or 12 [V] to the secondary side voltage of 200 [V]. Transform.

The input voltage changeover switch 33 is a manual switch for the operator to manually switch the voltage changeover circuit 32b in the DC / AC conversion circuit 32 according to the voltage of the vehicle-mounted battery 40. Depending on the switching of the input voltage changeover switch 33, the cutoff value of the circuit breaker 31 and the switching control operation of the switching control / driver circuit 32g in the DC / AC conversion circuit 32 are also the respective voltages of 48, 24 or 12 [V]. Can be switched for.

The rectifier circuit 32d rectifies the secondary current of the transformer 32c. The inverter circuit 32e performs frequency conversion with respect to the secondary current of the transformer 32c rectified by the rectifier circuit 32d based on the driving of the switching control / driver circuit 32g. The filter circuit 32f includes a sine wave filter and a noise filter, filters the alternating current output from the inverter circuit 32e, and outputs the alternating current as a three-phase alternating current output.

By providing a transformer 32c having a plurality of primary input terminals for different input voltages and a voltage switching circuit 32b for switching the connection of the in-vehicle battery 40 to the primary input terminals of the transformer 32c, a plurality of voltages having different voltages are provided. It becomes possible to use any of the in-vehicle batteries, which improves convenience.

In FIG. 3, instead of the manual input voltage changeover switch 33, the voltage value of the in-vehicle battery 40 is detected and the connection is automatically switched to the primary side input terminal of the transformer 32c in the DC / AC conversion circuit 32. An automatic input voltage switching device may be provided.

Note that FIG. 3 shows an example of the external power supply conversion device 30 that converts the voltage of the DC in-vehicle battery 40 (external power supply) into the voltage of the AC commercial power supply, but the supplied equipment is an electric device for direct current (external power supply). When configured with a motor, etc.), the external power converter does not need to perform DC-AC conversion.

FIG. 5 is a diagram showing an example of an emergency external power conversion unit according to the present invention. The emergency external power conversion unit 60 includes an external power conversion device 30, a DC cable 61, an AC cable 62, a first cable harness 63, a carrying case 70, a usage display 79, and a cable storage device 80. It is configured. Note that, in FIG. 5, in this example, the external power conversion device 30 is not shown because it is housed under the cable storage device 80 in the carrying case 70 and cannot be seen.

The DC cable 61 is, for example, a cable with a connector having a connector 1. In this example, the external power conversion device 30 and the vehicle-mounted battery 40 are connected by connecting the connector 1 of the DC cable 61 to the connector 40a as a connection terminal of the vehicle-mounted battery 40 mounted on the electric forklift. .. The AC cable 62 is, for example, a cable with a connector having a connector 2. In this example, by connecting the connector 2 of the AC cable 62 to the connector 20a of the power switching device 20, the external power conversion device 30 and the power switching device 20 of the switching body device 10 are connected.

The carrying case 70 houses an external power conversion device 30, a DC cable 61, an AC cable 62, a first cable harness 63, a usage display 79, and a cable storage device 80, which are portable when in use. It can be taken out from the case 70. However, the external power conversion device 30 and the cable storage device 80 do not need to be taken out from the carrying case 70 at the time of use.
Using the carrying case 70, the external power conversion device 30, the DC cable 61, and the AC cable 62 can be easily carried together. The cable storage device 80 may be attached to the outside of the carrying case 70 instead of being housed in the carrying case 70. Further, the first cable harness 63 may be stored separately from the carrying case 70 instead of being housed in the carrying case 70.

According to the emergency external power conversion unit 60 of the present embodiment, power can be easily supplied to the power switching device 20 of the switchgear device 10 by using the in-vehicle battery 40 in the event of a power failure. Disaster prevention equipment can be provided at low cost. Since the emergency external power conversion unit 60 includes an external power conversion device 30, a DC cable 61, and an AC cable 62, when the in-vehicle battery 40 and the emergency external power conversion unit 60 are prepared, the necessary connection work is performed. It will be possible immediately.

The portable case 70 has a case main body 70a having a take-out port on the upper surface, and a lid 70b covering the take-out port of the case main body 70a. The lid 70b is attached to the case body 70a so as to be openable and closable. FIG. 6A is a side view of the carrying case, and FIG. 6B is a bottom view of the carrying case. A handle 71a is provided on the longer side surface of the case body 70a of the carrying case 70. The handle 71a is attached so as to rotate 90 degrees in the vertical direction of the drawing of FIG. 6A and stand up. Further, a handle 71b is provided on the shorter side surface of the case body 70a. By providing the handles 71a and 71b on the carrying case 70, the carrying case 70 can be easily carried and carried.

In FIGS. 6A and 6B, four wheels 72 for rolling and moving on the floor are attached to the side surface of the carrying case 70 opposite to the side surface where the handle 71b of the case body 70a is provided. ing. Further, leg bases 73 are attached to four places on the bottom surface of the case body 70a. These pedestals 73 support the carrying case 70 horizontally when the carrying case 70 is placed on the floor with the lid 70b facing upward. Further, a handle 74 to be gripped when rolling and moving on the floor is attached from the vicinity of the center of the bottom surface of the case body 70a to the upper part of the drawing. By providing the wheel 72 and the handle 74 on the carrying case 70, the carrying case 70 can be rolled and moved on the floor, and the emergency external power conversion unit 60 can be transported very easily.

The handle 74 is composed of a handle upper portion 74a, a handle lower portion 74b, and a grip portion 74c, and the handle upper portion 74a is configured to be slidable in the arrow direction shown in FIG. Has been done. By storing the handle upper portion 74a in the handle lower portion 74b, the handle upper portion 74a and the grip portion 74c do not protrude from the bottom surface of the case body 70a and interfere with the work when the handle 74 is not used.

FIG. 7A is an example of an external view of an external power conversion device, a DC cable, an AC cable, and a first cable harness. In FIG. 7A, the DC cable 61 of this example is provided with a connector 1 at one end thereof for connecting to the connector 40a of the vehicle-mounted battery 40 of the forklift. Further, the AC cable 62 of this example is provided with a connector 2 at one end thereof for connecting to the connector 20a provided in the power switching device 20 of the switchgear device 10. The connector 2 is attached with a cap 2a for covering and protecting the joint portion when not in use.

Since the DC cable 61 has a connector 1 for connecting to the connector 40a of the vehicle-mounted battery 40, and the AC cable 62 has a connector 2 for connecting to the connector 20a of the power switching device 20 of the switchgear device 10, it is external. The work of connecting the power conversion device 30 to the in-vehicle battery 40 and the work of connecting the external power conversion device 30 to the power switching device 20 of the opening / closing device 10 become easy.
Further, normally, the connector 2 of the AC cable 62 can be removed from the connector 20a of the power switching device 20, and the emergency external power conversion unit 60 can be stored in another storage location. It is necessary to connect the connector 2 of the AC cable 62 of the emergency external power conversion unit 60 brought from the place to the connector 20a of the power switching device 20 without performing the electrical work that requires the qualification of an electrician. Power can be supplied from the external power conversion device 30 to the power switching device 20 of the switchgear device 10.

In FIG. 7A, the other ends of the DC cable 61 and the AC cable 62 of this example are connected to the external power conversion device 30 in advance. Since the other ends of the DC cable 61 and the AC cable 62 are connected to the external power conversion device 30 in advance, when the emergency external power conversion unit 60 is used, the DC cable 61 and the AC cable are again used. It is not necessary to perform the work of connecting the 62 to the external power conversion device 30, and the minimum necessary work can be performed quickly.

In FIG. 5, in this example, the cable storage device 80 is housed in the case body 70a of the carrying case 70. FIG. 7B is an example of an external view of the cable storage device. The cable storage device 80 includes a pedestal 81, a plurality of columns 82, a first connector storage tool 83, and a second connector storage tool 84. A plurality of cylindrical columns 82 for winding the DC cable 61 and the AC cable 62 are attached to the pedestal 81. In this example, four columns 82 are provided, and the first connector storage tool 83 and the second connector storage tool 84 are arranged in the space between the four columns 82. The first connector storage tool 83 and the second connector storage tool 84 are made of, for example, a flexible tape with a hook-and-loop fastener, and are attached to the pedestal 81.

The number of columns 82 is not limited to four, and three or less or five or more columns 82 may be provided. Further, the support column 82 does not necessarily have to be cylindrical, and the portion where the wound DC cable 61 and the AC cable 62 come into contact is sharp so as not to damage the DC cable 61 and the AC cable 62. Any shape may be used as long as it has no corners.

FIG. 8A is an external view of a cable storage device around which an AC cable is wound. The AC cable 62 is wound around the outside of the four columns 82, and the connector 2 of the AC cable 62 is fixed to the pedestal 81 using the second connector storage tool 84. FIG. 8B is an external view of a cable storage device around which a DC cable is further wound. The DC cable 61 is wound around the outside of the four columns 82, and the connector 1 of the DC cable 61 is fixed to the pedestal 81 by using the first connector accommodating tool 83. The order in which the DC cable 61 and the AC cable 62 are wound is not limited to the above-mentioned order, and the winding may be performed in any order.

The DC cable 61 and the AC cable 62 are wound around a plurality of columns 82 of the cable storage device 80, the connector 1 of the DC cable 61 is stored in the connector storage device 83, and the connector 2 of the AC cable 62 is stored in the connector storage device. By storing the DC cable 61 and the AC cable 62 in the carrying case 70, it becomes extremely easy to store the DC cable 61 and the AC cable 62 in the carrying case 70 and take them out from the carrying case 70, and the DC cable 61 and the AC cable 62 are entangled. And twisting are suppressed, and damage and disconnection of the DC cable 61 and the AC cable 62 are avoided.

In FIG. 5, inside the lid 70b of the carrying case 70, a usage method display 79 describing how to use the external power conversion device 30, the DC cable 61, and the AC cable 62 is provided. FIG. 9 is a diagram showing an example of a usage method display. The instruction manual that describes how to handle the related equipment of the switchgear device 10 has been provided in a booklet or computer software in the past, but it should be stored in an easy-to-understand place in case of an emergency such as a power outage. desirable. By providing the carrying case 70 with a usage display describing how to use the external power conversion device 30, the DC cable 61, and the AC cable 62, the external power conversion device 30 can be easily used.

The usage method display 79 is not limited to the usage method of the external power conversion device 30, the DC cable 61 and the AC cable 62, but also the usage method of the first cable harness 63 described later, necessary notes and product specifications. Other information such as may be described together. Further, the usage method display 79 is not limited to the inside of the lid 70b of the carrying case 70, but may be provided on the surface of the carrying case 70 or the like.

In FIG. 1, there are two types of connectors 40a as connection terminals for the in-vehicle battery 40 of an electric forklift, large and small. In the in-vehicle battery of a large electric forklift, a large-sized connector is mainly used. In-vehicle batteries for small electric forklifts mainly use small size connectors. The large size connector and the small size connector are not compatible, and when the in-vehicle battery 40 of the electric forklift is used as an external power source, conventionally, a plurality of DC cables having connectors of each size are prepared. I needed it.

In FIG. 7, in the first cable harness 63, a small-sized connector 3 is attached to one end of a pair of positive and negative cables, and a large-sized connector 4 is attached to the other end. FIG. 10 is a diagram illustrating a configuration and a usage example of a first cable harness according to an embodiment of the present invention.
10 (a) is a top view of the large-sized connector 4, and FIG. 10 (b) is a side view of the connector 4. The connector 4 includes a connector main body 4a, a joint base 4b, two convex joint portions 4c, and two concave joint portions 4d. In FIG. 10A, the joint base 4b is substantially half the thickness of the connector main body 4a, and two convex joint portions 4c are provided on the upper surface of the joint base 4b. On the other hand, in FIG. 10B, two concave joint portions 4d are provided inside the joint base 4b. An electrode is provided on each of the convex joint portion 4c and each concave joint portion 4d. The configuration of the small size connector 3 is the same as the configuration of the large size connector 4.

The configuration of the connector 40a provided on the vehicle-mounted battery 40 of the electric forklift and the configuration of the connector 1 of the DC cable 61 are the same as the configuration of the connector 4 described above. Therefore, there is no distinction between male and female connectors 1, 3, 4, 40a, and when connecting connectors of the same size, one connector is turned upside down with respect to the other connector, and the convex joints of each other. And the concave joint. The electrode of the convex joint portion of one of the engaged connectors comes into contact with the electrode of the concave joint portion of the other connector, and the connectors are connected to each other.

FIG. 10C shows a case where the connector 40a of the vehicle-mounted battery 40 of the electric forklift is a large-sized connector and the connector 1 of the DC cable 61 is a small-sized connector. In this case, the large-sized connector 4 at one end of the first cable harness 63 is engaged with the large-sized connector 40a of the vehicle-mounted battery 40, and the small-sized connector at the other end of the first cable harness 63 is engaged. 3 is engaged with the small size connector 1 of the DC cable 61.

On the contrary, FIG. 10D shows a case where the connector 40a of the vehicle-mounted battery 40 of the electric forklift is a small size connector and the connector 1 of the DC cable 61 is a large size connector. In this case, the small-sized connector 3 at one end of the first cable harness 63 is engaged with the small-sized connector 40a of the vehicle-mounted battery 40, and the large-sized connector at the other end of the first cable harness 63 is engaged. 4 is engaged with the large size connector 1 of the DC cable 61.

When the size of the connector 40a of the vehicle-mounted battery 40 and the size of the connector 1 of the DC cable 61 are different, the connector 40a of the vehicle-mounted battery 40 and the connector 1 of the DC cable 61 are connected via the first cable harness 63. can do. Therefore, as the DC cable 61, only one cable having either a large or small size connector needs to be prepared, and it is not necessary to prepare a plurality of DC cables 61 having connectors of each size, which is inexpensive. And it has a small structure.

FIG. 11 is a diagram showing a first cable harness according to another embodiment of the present invention. In this embodiment, the connector 4'of the first cable harness 63'that engages with the connection terminal of the battery is used as a booster clip.
By using the connector 4'that engages with the connection terminal of the battery of the first cable harness 63'as a booster clip, it becomes possible to use a battery having a terminal (electrode) other than the connector as the connection terminal, and it is versatile. Will increase.

For example, this connector 4'(booster clip) is engaged with the terminal (electrode) of an in-vehicle battery as an external power source mounted on an automobile or a motorcycle, or the terminal (electrode) of an engine starter for an automobile, and the other end thereof. The connector 3 is connected to the connector 1 of the DC cable 61. At this time, if the size of the connector 3 and the size of the connector 1 of the DC cable 61 are different, the above-mentioned first cable harness 63 can be further used.
The external power conversion device 30 can be used to convert the power input from the vehicle-mounted battery of an automobile or a motorcycle or the engine starter for a vehicle into electric power having the same voltage as the commercial power source.

In the present embodiment, a second cable harness for connecting the AC cable 62 and other supplied equipment, which is not shown in FIG. 7A, is further provided. FIG. 12 is a diagram showing a second cable harness according to an embodiment of the present invention. The second cable harness 64 has a connector 5 at one end thereof that engages with the connector 2 of the AC cable 62. The second cable harness 64 has a general-purpose outlet 6 for alternating current or direct current at the other end. The second cable harness 64 may be housed in the carrying case 70 or may be stored separately from the carrying case 70 in the same manner as the first cable harness 63, 63'.

By providing the second cable harness 64 with a general-purpose outlet 6 for AC or DC, when there is no commercial power supply such as in the event of a power failure, the second cable harness 64 is used to other than the opening / closing device 10. For example, electric power can be supplied to supplied equipment having a general-purpose outlet plug such as a lighting device, a temperature control device, a heater, and a refrigerator, and the versatility is increased.
The general-purpose outlet for alternating current is not limited to a three-phase outlet, but may be a single-phase outlet, depending on the outlet plug used in the supplied equipment. For example, in an opening / closing device provided with an emergency power supply device, a single-phase 200V outlet plug is used in order to have an inexpensive configuration.

In FIG. 5, when the DC cable 61 and the AC cable 62 are taken out from the outlet of the case body 70a of the carrying case 70, if the lid 70b of the carrying case 70 is not fixed in the open state, the lid 70b is erroneously used. May close and pinch the DC cable 61 and the AC cable 62 between the case body 70a and the lid 70b. In particular, if the outer surfaces of the case body 70a and the lid 70b are made of a hard material such as aluminum, there is a risk of injury to the hand or damage to the DC cable 61 and the AC cable 62. Therefore, in the present embodiment, the carrying case 70 is provided with a stopper for holding the open state of the lid 70b.

FIG. 13 is a diagram illustrating a stopper tool according to an embodiment of the present invention. In FIG. 13A, the stopper tool 75 shown in the broken line on the right side of the arrow A stands up substantially perpendicular to the drawing at the portion indicated by the broken line of the carrying case 70 shown on the left side of the arrow A. It is attached. The stopper tool 75 includes an upper arm 75a, a lower arm 75b, a connecting tool 75c, an upper mounting tool 75d, a lower mounting tool 75e, and a moving piece 75f. Each of these members is formed by cutting, for example, a plate-shaped metal plate by laser processing or the like. Further, the moving piece 75f has a U-shaped cross section formed by press working or the like.

The upper arm 75a is rotatably attached to the connecting tool 75c and the upper mounting tool 75d, respectively. The lower arm 75b is rotatably attached to the connecting tool 75c and the lower mounting tool 75e, respectively. The connector 75c may be integrated with the upper arm 75a or the lower arm 75b, and the upper arm 75a and the lower arm 75b may rotate around the portion of the connector 75c.
The upper attachment 75d is fixed to the inner surface of the lid 70b, and the lower attachment 75e is fixed to the inner wall of the case body 70a. The moving piece 75f has a plate-shaped upper arm 75a sandwiched between two facing surfaces having a U-shaped cross section, and is slidably attached up and down to an elongated hole provided in the upper arm 75a. A spring for urging the moving piece 75f downward is attached to the inside of the moving piece 75f having a U-shaped cross section. When the lid 70b is opened, the lower end portion of the moving piece 75f is brought into contact with the concave notch portion 75g provided in the lower arm 75b, and the open state of the lid 70b is maintained.

When closing the lid 70b, the moving piece 75f is pushed upward as indicated by the arrow B against the urging force of the spring, the lower end of the moving piece 75f is removed from the concave notch 75g of the lower arm 75b, and the lid is closed. The lid 70b is closed while releasing the holding of the 70b in the open state. When the lid 70b is closed, the upper arm 75a rotates in the direction of arrow C, the lower arm 75b rotates in the direction of arrow D, and the stopper tool 75 is folded in the state shown in the broken line in FIG. 13 (b). Is done.

By providing the stopper tool 75 that holds the lid 70b in the open state, there is no possibility that the hand or the DC cable 61 and the AC cable 62 are sandwiched between the case body 70a and the lid 70b. Then, the upper arm 75a and the lower arm 75b as support members for supporting the lid 70b, the upper arm 75a and the lower arm 75b are fixed to the stopper tool 75, and the fixing between the upper arm 75a and the lower arm 75b is released. By providing the moving piece 75f, it is possible to release the holding of the lid 70b in the open state and close the lid 70b without fear of pinching a finger in the stopper tool 75. At this time, since the stopper tool 75 is provided only at one place on one side between the case body 70a and the lid 70b, the operation of closing the lid 70b with the other hand while operating the moving piece 75f with one hand. It can be performed.

A metal fitting that holds a lid, a door, or the like at a fixed angle, such as the stopper tool of the present embodiment, is generally called a "stay". The top-opening stay for the canopy is usually attached so that the rotating shaft (corresponding to the connecting tool 75c) moves away from the operator (depth direction) so as not to get in the way when folded. On the other hand, the stopper tool 75 of the present embodiment is attached so that the rotating shaft (connecting tool 75c) moves in the direction closer to the operator (frontward direction) when folded, whereby the moving piece The 75f is located in front of the operator, which facilitates the operation of the moving piece 75f by the operator.

In FIG. 3, the input voltage detector 34 of the external power conversion device 30 includes a DC voltmeter and a display unit, and detects and detects the magnitude of the DC voltage input from the circuit breaker 31 to the DC / AC conversion circuit 32. The magnitude of the applied voltage is displayed on the display. Further, the output voltage detector 35 of the external power conversion device 30 includes an AC voltmeter and a display unit, detects the magnitude of the AC voltage output from the DC / AC conversion circuit 32, and detects the magnitude of the detected voltage. Is displayed on the display unit.

When a failure occurs in the input system or output system of the external power conversion device 30, it is difficult to identify the location of the failure, and the work of measuring the voltage of the input line and output line using a measuring device such as a tester is a disaster or a power outage. It is difficult in an emergency such as. The input voltage detector 34 is used to detect and display the magnitude of the DC voltage input to the external power conversion device 30, and the output voltage detector 35 is used to detect and display the magnitude of the DC voltage input to the external power conversion device 30. Since the magnitude of the AC voltage is detected and displayed, it becomes easier to identify the location of the failure and the convenience of maintenance is improved. When the display unit of the input voltage detector 34 and the output voltage detector 35 uses, for example, a 7-segment numerical display or a liquid crystal display device, visual recognition is improved.

FIG. 14 is a diagram illustrating the display of the input voltage detector and the output voltage detector of the external power conversion device and the failure location. FIG. 14A is a diagram showing a power supply path from the vehicle-mounted battery 40 to the control device 18 of the opening / closing body device 10. In FIG. 14A, the circuit breaker 31 and the power switching device 20 in the external power conversion device 30 are omitted. Hereinafter, the voltage of the vehicle-mounted battery 40 will be, for example, a DC voltage of 48 V. The DC / AC conversion circuit 32 maintains the output of the AC voltage of 200V until the decompression rate of the input voltage reaches -20%, and outputs the AC voltage of 100V when the decompression rate of the input voltage reaches -25%. However, it is assumed that the design is such that the output voltage becomes 0V when the decompression rate of the input voltage reaches -30%.

In this case, in FIG. 14B, if the display of the output voltage detector 35 is 200V from the display of the input voltage detector 34 until the decompression rate of the input voltage becomes −20%, the in-vehicle battery 40 and It can be determined that the DC / AC conversion circuit 32 has no faulty part. On the other hand, if the display of the output voltage detector 35 is less than 200V at this time, it can be determined that the faulty part is the DC / AC conversion circuit 32.
From the display of the input voltage detector 34, when the decompression rate of the input voltage is −25%, if the display of the output voltage detector 35 is 100V, it can be determined that the faulty part is the vehicle-mounted battery 40. On the other hand, if the display of the output voltage detector 35 is less than 100V at this time, it can be determined that the faulty part is the in-vehicle battery 40 and the DC / AC conversion circuit 32.
From the display of the input voltage detector 34, when the decompression rate of the input voltage is −30%, it can be determined that the faulty part is at least the in-vehicle battery 40. At this time, the display of the output voltage detector 35 is 0V, but it cannot be determined whether or not the DC / AC conversion circuit 32 is included in the faulty part.
If it can be determined that the in-vehicle battery 40 and the DC / AC conversion circuit 32 have no failure points, but the opening / closing device 10 does not operate normally, there is a problem with the devices after the control device 18. It can be judged as a thing.

According to the embodiment described above, the emergency external power conversion unit 60 for the switchgear device, which can easily supply electric power from the vehicle-mounted battery 40 to the switchgear (motor 17) of the switchgear device 10, is provided. Will be done.
Further, since the power switching device 20 of the switching body device 10 supplies the power of the commercial power supply to the control device 18 when the commercial power supply is supplied, the commercial power supply is used when the commercial power supply is supplied. An emergency external power conversion unit 60 for an opening / closing device is provided.

In the above-described embodiment, the shutter curtain that is extended by the vertical elevating method has been described as an example, but the same applies even if the shutter-shaped opening / closing member is extended by the horizontal pulling method or the horizontal method. Can be applied to. Examples of the opening / closing device include a shutter device, a window shutter device, a blind device, a roll screen device, a hanging curtain device, a sliding door device, a moving partition device, a sliding door device, a hinged door device, a folding door device, a gate device, and an awning device. It can also be applied to waterproof plate devices.

Further, the emergency external power conversion unit of the present invention is not limited to the switchgear device, but is used when supplying power from an external power source to various devices and devices when there is no commercial power supply such as during a power failure. Can be used.
In the above-described embodiment, an inverter circuit that converts direct current into alternating current has been described as an example, but the inverter includes a converter circuit that converts direct current into direct current, alternating current into direct current, or alternating current into alternating current.

1,2,3,4,5 ... Connector 4'... Connector (booster clip)
6 ... Outlet 10 ... Switch 11 ... Shutter case 12 ... Shutter curtains 13, 14 ... Guide rail 15 ... Take-up shaft 16 ... Chain 17 ... Motor 172 ... Position detection device 18 ... Control device 185 ... Obstacle detector 19 ... Operation switch 19A ... Up (open) button 19B ... Stop (stop) button 19C ... Down (close) button 20 ... Power switching device 20a ... Connector 30 ... External power conversion device 31 ... Breaker 32 ... DC / AC conversion circuit 33 ... Input voltage selector switch 34 ... Input voltage detector 35 ... Output voltage detector 40 ... In-vehicle battery 40a ... Connector 60 ... External power conversion unit 61 ... DC cable (first cable)
62 ... AC cable (second cable)
63, 63'... 1st cable harness 64 ... 2nd cable harness 70 ... Portable case 70a ... Case body 70b ... Lid 71a, 71b ... Handle 72 ... Wheel 73 ... Leg stand 74 ... Handle 75 ... Stopper tool 79 ... Usage display 80 ... Cable storage device 81 ... Pedestal 82 ... Support 83 ... First connector storage 84 ... Second connector storage

Claims (10)

A conversion means connected to a battery as an external power source having a connection terminal and converting the electric power input from the battery into electric power having the same voltage as the commercial power source.
At one end thereof, a first cable having a connector means for connecting to the connection terminal of the battery and connecting the conversion means and the battery, and
A second cable connecting the conversion means and the equipment to be supplied with the commercial power supply, and
One end is provided with a connector means that engages with the connection terminal of the battery, and the other end is provided with a first cable harness means having a connector means that engages with the connector means of the first cable.
When the connection terminal of the battery and the connector means of the first cable cannot be fitted, the connection terminal of the battery and the connector means of the first cable are connected to the first cable harness. Connect via means,
An emergency external power conversion unit, characterized in that the power converted by the conversion means is supplied to the supplied equipment. In the emergency external power conversion unit according to claim 1, the conversion means is connected to an in-vehicle battery as the external power source mounted on an electric forklift, and the electric power input from the in-vehicle battery is used as the commercial power source. An emergency external power conversion unit characterized by converting to power of the same voltage. In the emergency external power conversion unit according to claim 1, the connector means of the first cable harness means that engages with the connection terminal of the battery is a booster clip. Power conversion unit. In the emergency external power conversion unit according to claim 3, the conversion means is connected to an in-vehicle battery as an external power source mounted on an automobile or a motorcycle, or an engine starter for an automobile, and is connected to the in-vehicle battery or the vehicle. An emergency external power conversion unit characterized by converting electric power input from an engine starter into electric power having the same voltage as the commercial power source. In the emergency external power conversion unit according to claim 1, 2, 3, or 4, the second cable has a connector means at one end thereof for connecting to the connector means provided in the supplied equipment. Have and
One end is provided with a connector means that engages with the connector means of the second cable, and the other end is provided with a second cable harness means having a general-purpose outlet for alternating current or direct current. Emergency external power conversion unit. In the emergency external power conversion unit according to claim 5, the first cable and / or the second cable is characterized in that the other end thereof is previously connected to the conversion means. Emergency external power conversion unit. The emergency external power conversion unit according to claim 1, 2, 3, 4, 5, or 6, comprising the conversion means, the first cable, and a carrying case for accommodating the second cable.
The carrying case has a case main body having a take-out port, a lid covering the take-out port of the case main body, and a stopper means for holding the lid in an open state, and the stopper means supports the lid. An emergency external power conversion unit having a support member to be provided and a moving piece for fixing the support member and releasing the fixing of the support member. In the emergency external power supply conversion unit according to claim 1, 2, 3, 4, 5, 6, or 7, the conversion means includes an input voltage detecting means for detecting and displaying the magnitude of the input voltage, and an output. An emergency external power conversion unit having an output voltage detecting means for detecting and displaying the magnitude of a voltage. In the emergency external power conversion unit according to claim 1, 2, 3, 4, 5, 6, 7, or 8, the supplied equipment includes an opening / closing means provided on a peripheral edge of an opening and the opening / closing means. A switch for electrically operating the means, a control means for driving the switch to electrically control the operation of the switch, and power based on the external power source when the commercial power supply is not supplied. The power supply switching means of the switch device provided with the power supply switching means capable of supplying the control means.
The emergency external power conversion unit is an emergency external power conversion unit characterized in that the power converted by the conversion means is supplied to the power switching means. In the emergency external power conversion unit according to claim 9, the power switching means supplies the power of the commercial power supply to the control means when the commercial power supply is supplied. Conversion unit.

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