Emergency power device, elevator system, method for the emergency operation of an elevator system

Abstract

The invention relates to an emergency power device (3) for an elevator system (1), comprising – an energy store (5), in particular a battery, in particular a 48V battery, - an energy store holder (7), wherein the energy store holder (7) and the energy store (5) are frictionally and / or interlockingly connected in a mounted state, - wherein the emergency power device (3) can be carried, in particular carried by a person.

Description

[0001] Emergency power device, elevator system, method for emergency operation of an elevator system

[0002] The invention relates to an emergency power device, an elevator system and a method for emergency operation of an elevator system according to the preamble of the independent claims.

[0003] In the event of a power failure, the rescue of trapped passengers must be possible. In this case, the elevator system is powered by an emergency power supply. An emergency power supply with a separate emergency power module can be provided for this purpose.

[0004] In an elevator system, during emergency operation—for example, in emergencies, during commissioning, acceptance or testing, during maintenance, and during other operating modes for qualified personnel that deviate from normal operation—the elevator system must be able to operate at least partially from an emergency power supply. In particular, the elevator system must be provided with sufficient power from an emergency power supply to release the brake and, if necessary, operate the drive, as well as to enable other functions necessary for passenger evacuation.

[0005] Utility model DE 296 15 921 UI discloses a device for evacuating elevator passengers in an emergency. The device is intended for elevator systems without a machine room, where the drive unit is located in the shaft. If the elevator car becomes stuck in the elevator shaft, the brake is manually released and the elevator car is moved to the nearest floor. The brake is actuated via a Bowden cable from the floor. During evacuation, the elevator car moves while the elevator system is de-energized. Only a battery is provided to power a signaling device that indicates that the elevator car is on the evacuation floor.

[0006] A disadvantage of the known elevator system and the previously described method for emergency operation of this elevator system is that during emergency operation, only the brake of the elevator system can be operated. Other functions available during normal operation of the elevator system, such as opening an electronic door lock or operating a door drive, are not possible with the emergency operation device known in the prior art.

[0007] The objective is to further develop the state of the art regarding emergency operation of an elevator system. In particular, a simple and easily transportable and manageable emergency power device is to be provided. This will advantageously reduce or at least minimize existing disadvantages and limitations regarding emergency operation.

[0008] The problem is solved in various aspects by an emergency power device according to the claims, an elevator system according to the claims, and a method according to the claims. Particular embodiments are the subject of the dependent claims. Advantageous refinements will also become apparent from the description and the drawings.

[0009] According to the claim, the emergency power device for an elevator system comprises an energy storage device and an energy storage holding device. The energy storage holding device can be connected to the energy storage device in a force-fitting and / or form-fitting manner, or is connected in an assembled state. The emergency power device is portable, in particular portable by a person. The energy storage device and the energy storage holding device preferably form a compact and rigid arrangement through their connection.

[0010] In one embodiment of the emergency power device described above and below, the connection between the energy storage holding device and the energy storage device is designed to be non-destructively detachable. This allows the same energy storage holding device to be used with multiple energy storage devices and / or vice versa.

[0011] The fact that the emergency power device is portable, in particular, means that it can be lifted and preferably transported by a single person, such as a service technician, using muscle power. In particular, the emergency power device can be designed for one-handed lifting.

[0012] It is advantageous that the emergency power device can be moved or transported from one elevator system to another. Maintenance personnel can then take the emergency power device from one elevator system to the next and simply carry it from a car to the elevator system, for example. This makes it possible, in particular, to design the emergency power device for the elevator system, or rather the elevator system itself, more cost-effectively, as it eliminates the need for a separate energy storage device permanently connected to the elevator system for emergency operation.

[0013] In one embodiment of the emergency power device described above and below, the emergency power device is designed to supply electrical power to at least one drive of the elevator system. In a particular embodiment, the emergency power device is designed to simultaneously supply electrical power to two drives of the elevator system. This is particularly advantageous for an elevator system with a so-called dual drive, as described below. Such configurations enable motorized displacement or movement of the elevator car using the elevator system's drive, even in emergency operation.

[0014] In one embodiment of the emergency power device described above and below, the emergency power device is designed to supply electrical power to a door drive and / or door lock. Such a configuration enables automated door movement and, in particular, door opening even in emergency mode.

[0015] In one embodiment of the emergency power device described above and below, the emergency power device is designed to supply electricity to a control system and / or a brake of the elevator system.

[0016] The energy storage device can in particular be a battery, in particular a 48 V battery. This makes it possible to easily connect the energy storage device directly to the elevator system using electrical cables or lines, in particular a connecting cable as described below. This is particularly advantageous if the elevator system is designed for electrical supply or operation with a direct voltage, for example with a 48 V direct voltage. In this case, the emergency power device is a simple battery that has the same electrical parameters as the power supply used during normal operation. This allows the emergency power supply or its energy storage device to be connected directly to the elevator system, i.e., without the need for additional converters or interface circuits.The emergency power device can thus be designed particularly cost-effectively and simply, since there is no need for a converter or inverter.

[0017] In one embodiment of the emergency power device described above and below, the energy storage holding device and the energy storage device are connected in an assembled state by means of screws. In a further embodiment, the energy storage holding device and the energy storage device are connected in an assembled state by means of other fastening structures, such as one or a number of snap or locking connections.

[0018] In one embodiment of the emergency power device described above and below, the energy storage holding device comprises a handle, a base plate, and a fastening means for attaching the energy storage device to the base plate. The handle is fastened to the base plate. In one embodiment of the emergency power device described above and below, the energy storage device is arranged suspended or below the base plate in a deployment configuration and / or when carrying the emergency power device, with the handle projecting upward from the base plate.

[0019] The use of the terms "horizontal", "vertical", "top", "bottom" in this document refers to such an orientation of the emergency power device, but is not to be understood as limiting.

[0020] An energy storage holding device designed in this way enables both easy carrying by a person grasping the handle and easy attachment of the energy storage holding device to the energy storage device.

[0021] The handle serves as the interface to the person carrying the device. This means that the service technician can easily lift, lower, and carry the emergency power device using the handle. The handle is attached to the base plate and is preferably designed to allow comfortable carrying of the energy storage device. The base plate is the attachment point for the handle and the attachment point for the fastening device. The base plate thus forms the interface between the handle and the fastening device for securing the energy storage device. The base plate is structurally the main element of the energy storage device. The fastening device enables easy connection of the energy storage device to the base plate.

[0022] In one embodiment of the emergency power device described above and below, the fastening means is designed from at least two struts extending vertically from the base plate and designed for fastening to a first or third lateral housing section of the energy storage device, or comprises at least two struts extending vertically from the base plate and designed for fastening to a first or third lateral housing section of the energy storage device. The struts can protrude from the base plate in a direction opposite to the handle, in a deployment configuration and / or when carrying the emergency power device, in particular downwards. The first and third lateral housing sections of the energy storage device can be formed in particular by two mutually parallel and spaced-apart side walls of a housing of the energy storage device.

[0023] Such a fastening means is a material-efficient and therefore cost-effective version of a fastening means. The struts running vertically away from the base plate make it possible to fasten the base plate, which in this embodiment rests on one side of the energy storage device when assembled, to at least one other side of the energy storage device. For this purpose, a through hole or bore can be provided in each of the at least two struts. Threaded holes or internal threads can be provided on the side walls of the energy storage device, in particular on the first and third housing sections, aligned with the holes in the struts, so that the struts and the energy storage device can be mechanically connected by means of screws at at least two points.Such an energy storage mounting device can be easily mounted on the energy storage device, with the base plate resting on one side of the energy storage device. It can then be connected to the energy storage device via screws and struts. This creates an emergency power device that is mobile and requires little material, making it lightweight and cost-effective. This can provide a particularly advantageous emergency power device for an elevator system.

[0024] In one embodiment of the emergency power device described above and below, the fastening means comprises four struts extending vertically from the base plate and designed for fastening to at least the first and third lateral housing sections of the energy storage device. Two of the vertical struts are preferably connected by a further horizontal strut. The horizontal strut preferably has a first recess for the passage of a switch cable. The connection to the energy storage device can be made as described above. In one embodiment, the switch cable can be multi-core, in particular two-core. The switch can be electrically inserted into the switch cable.

[0025] In one embodiment of the emergency power device described above and below, the energy storage device has a housing with at least four threads, in particular internal threads, wherein in an assembled state a screw extending through a vertical strut is screwed into each of the threads.

[0026] The at least four internal threads can be arranged in the housing such that when the energy storage holding device is placed on it, they lie below the holes in the four struts. In other words, when the energy storage holding device is placed on the energy storage device or the battery, the four holes in the struts are aligned with the four internal threads. Each hole in a strut is assigned to an internal thread in the housing of the energy storage device. In this way, the energy storage holding device can be connected to the battery housing via the struts. Of course, a different number of internal threads and holes can also be provided in the struts, for example two holes in each strut, i.e. a total of eight holes and eight internal threads in the housing of the energy storage device.

[0027] An emergency power device designed in this way enables a particularly stable connection between the base plate and the energy storage device. This ensures that the forces generated when carrying or grasping the handle of the energy storage device are transferred to the energy storage device. This improves the mechanical stability of the emergency power device. The additional struts provide additional stability to the energy storage device. The recess provided in one embodiment for the passage of a switch cable enables easy electrical contact with the energy storage device.This is because the energy storage device can have, on a lateral housing section on which the two vertically running struts, which are connected by the horizontally running strut, rest on the energy storage device, a plug connector or contact accessible through a hole in the energy storage housing for electrically contacting the battery or for connecting it to a switch, as described below. The energy storage holding device is designed such that when the base plate of the energy storage holding device is placed on the energy storage device, in particular a second housing section of the energy storage device, the first recess formed in the horizontal strut comes to lie in a manner that matches the plug connector or contact. A cable can thus be routed through the first recess. This enables contact to be made with the energy storage device even when the energy storage holding device is in place.

[0028] In further embodiments of the emergency power device described above and below, other fastening means are provided instead of vertical struts. For example, the fastening means can be a skirt or wall extending circumferentially from the base plate, in particular a closed or substantially closed one. Further features such as holes for connecting to the energy storage device by screws and / or a first recess can be provided in an analogous manner.

[0029] In one embodiment of the emergency power device described above and below, the energy storage holding device has a switch. The switch can in particular be a battery switch. The switch is electrically connected to the energy storage device, in particular via a switch cable. The switch thus makes it possible to interrupt or close an electrical connection to the energy storage device. In one embodiment, the switch cable can have a mating connector that can be coupled to the plug connector or contact in the energy storage device as described above. The plug connector and the mating connector can form a single-pole, two-pole, or multi-pole plug-socket arrangement. In one embodiment, the plug connector is a plug and the mating connector is a socket. In an alternative embodiment, the plug connector is a socket and the mating connector is a plug.

[0030] Such an emergency power device enables safe handling of the emergency power device. The service technician can use the switch to de-energize the contacts on the emergency power device, particularly those on its connecting cable, when the emergency power device is no longer needed. This ensures that no externally accessible contacts are live when the emergency power device is not in use. The presence of the switch directly on the energy storage holder enables a particularly compact design of the emergency power device. This results in a particularly intuitive emergency power device, with the switch located in the immediate vicinity of the handle and the energy storage device, such as a battery, for easy access. This ensures that the emergency power device can be operated safely even by persons who are not specifically trained to do so, without the need for instructions.The switch on the emergency power device does not exclude the use of another switch, particularly an emergency power switch, on the elevator system. It may be necessary to operate both the switch on the emergency power device and another switch on the elevator system so that the energy storage device of the emergency power device is electrically connected to the elevator system or its components (e.g., drive and / or brake), thus enabling emergency operation of the elevator system in an emergency.

[0031] In one embodiment, the base plate of the emergency power device described above and below has a second recess extending through the base plate. The second recess is designed for the passage of the switch cable and / or for attaching the battery switch. At a cable-side end of the second recess, the switch cable is inserted into the second embodiment and connected to the switch. The switch is arranged at a switch-side end of the second recess. The switch-side end and the cable-side end can be opposite ends of the second recess, and the second recess can extend continuously between the switch-side end and the cable-side end. The second recess can form a channel extending in the base plate. In one embodiment, the second recess extends rectilinearly along an extension direction between the cable-side end and the switch-side end.

[0032] This makes it possible to relocate the switch away from the connector for electrically contacting the battery and closer to the base plate. The switch is thus closer to the handle of the emergency power device, ensuring that the switch is easily recognized when carrying the emergency power device. The second recess allows, with appropriate design, the integration of the switch into the base plate. This allows the switch body to be integrated into the base plate and positioned in the second recess. Only the switching element, which must be operated to switch the switch from one state to another, is visible outside the base plate. In principle, the switch can also be positioned in any other way, independent of the base plate.

[0033] The recess can, for example, be designed in two parts, with a first part being wider to accommodate the switch body, and a second part being narrower, with only the switch cable being routed through this part. In another embodiment, the second recess can also run uniformly, i.e., with a constant width or constant cross-section, through the base plate and be designed solely for the passage of the switch cable. In this embodiment, the switch must be attached to the base plate outside the second recess.

[0034] A design as described above and below enables a simple mechanical (by connecting the struts with the threads in the housing) as well as a simple electrical (by contacting via the battery connector) contact / connection.

[0035] In one embodiment, the energy storage device is a battery as described above and below. The battery can, in particular, be a rechargeable battery or accumulator and can have a plurality of battery cells. In one embodiment, the energy storage device is or comprises a supercapacitor (supercap) or a supercap bank with a plurality of supercaps. Alternatively or additionally, the energy storage device can also comprise one or more capacitors of conventional design, for example, electrolytic capacitors, in the form of a capacitor bank.

[0036] In one embodiment of the emergency power device as described above and below, the energy storage device comprises a charger, in particular a battery charger. Integrating the charger into the housing of the energy storage device makes it possible to provide an emergency power device that is fully functional autonomously, i.e., without the need for additional devices. The energy-rich device, such as a battery, can be charged without connecting an additional device.

[0037] In one embodiment of the emergency power device as described above and below, the energy storage device further comprises a connecting cable. The connecting cable preferably exits from a second housing section of the energy storage device housing, with the base plate also resting on the second housing section when the energy storage device is mounted. The connecting cable can be designed in particular for connecting the emergency power device to the elevator system.

[0038] The second housing section can, in particular, be a housing section connecting the first and third housing sections as above or arranged between the first and third housing sections. The second housing section can, in particular, be an upper housing section or a top side of the housing of the energy storage device. Accordingly, with such a configuration, when the emergency power device is in an upright position (in particular with the handle facing upward), the connecting cable exits upward from the energy storage device or its housing.

[0039] Such an emergency power device allows all relevant operating elements to be arranged in close proximity. In such a design, the base plate is located directly next to or near the connecting cable. As explained, the base plate can contain the switch, in particular the battery switch, or the switch can be integrated into the base plate. Thus, the battery switch, the handle attached to the base plate, and the connecting cable are all located in close proximity. These are the elements that a service technician needs to operate the emergency power device. This enables simple and intuitive operation of the emergency power device.

[0040] In one embodiment of the emergency power device described above and below, the handle is designed such that it comprises a handle section running parallel to the base plate. This handle section is designed for guiding and securing a connecting cable. Such an emergency power device allows the connecting cable to be guided or secured to the handle. The handle thus performs a dual function. On the one hand, it is intended for carrying the emergency power device and, on the other hand, can be used to guide the connecting cable. This is advantageous with regard to the storage and carrying of the emergency power device.

[0041] The object is also achieved by an elevator system having a car and at least one counterweight, which are connected to one another via a support means. The elevator system also has at least one controller, at least one drive, in particular a 48 V drive, at least one brake, and at least one floor door with a door drive and / or door lock. The elevator system also has an emergency power connection and preferably an emergency power switch for supplying electricity to at least one of the components controller, drive, brake, door drive, and / or door lock via an emergency power device. The emergency power connection is designed such that it is suitable for connection to an emergency power device, as described above and below. For this purpose, appropriate plug connectors can be provided, in particular, on the emergency power connection of the elevator system and on the connection cable of the emergency power devices.During normal operation of the elevator system, the emergency power connection is preferably not connected to an emergency power device.

[0042] Such an elevator system enables cost-effective yet multifunctional emergency operation. The emergency power device can be connected to the elevator system via an emergency power connection. The energy from the emergency power device can operate at least one of the relevant components (preferably several of the components). This makes it possible to provide a multifunctional elevator system during emergency operation without the need for a complex emergency power supply within the elevator system itself.

[0043] In particular, matching the voltage of the emergency power device to the voltage required to operate the aforementioned components enables easy handling of the emergency power device, the elevator system, or an elevator system including the elevator system and emergency power device in emergency operation. Designing the elevator system with a DC voltage supply enables the use of a simple DC power source as the emergency power device. In particular, both the emergency power device and the elevator system can be designed as a 48 V system. This allows a simple series and / or parallel connection of standard batteries or battery cells to be used as the energy storage device in the emergency power device. The emergency power device or its energy storage device can then be connected directly to the components essential for emergency operation with an appropriate design of the elevator system.The emergency power system can thus ensure the operation of these essential components even in emergency mode. In particular, no intermediate voltage converter and / or inverter is required.

[0044] In one embodiment, the elevator installation described above and below further comprises a second drive and a second support means as well as a second counterweight.

[0045] In this embodiment, the elevator system is designed as a dual-drive elevator system, with each of the two drives driving a support element connected to the elevator car and a counterweight. Especially in such an elevator system with two drives, the use of direct-current-powered drives is technically particularly easy to implement. Therefore, such an elevator system is particularly suitable for the use of an emergency power device, as described above and below. In other words, an elevator system with a dual drive allows the use of direct-current-powered drives. An elevator system with direct-current-powered drives, in turn, allows the use of an emergency power device, which essentially consists of a battery.Such an emergency power device consisting of a battery makes it possible to provide a mobile, i.e. movable and elevator-independent, emergency power device with a simple energy storage holding device, as described above and below.

[0046] In one embodiment of the elevator system, at least one drive can be supplied with electricity via the emergency power connection.

[0047] In one embodiment, the at least one door drive and / or the at least one door lock can be electrically supplied via the emergency power connection.

[0048] The problem is also solved by an elevator system consisting of an elevator installation, as described above and below, and an emergency power device, as described above and below. The problem is also solved by a method for emergency operation of an elevator installation, as described above and below. The method comprises the following steps:

[0049] Connecting an emergency power device, as described above and below, to the emergency power connection of the elevator system, as described above and below.

[0050] Operate at least one of the components control, drive or drives, brake, door drive and / or door lock with energy from the emergency power device.

[0051] In one embodiment, the method further comprises the step of switching a switch, in particular a battery switch, of the emergency power device, as described above and below. The switching can be carried out, in particular, by flipping the switch.

[0052] This ensures that the emergency power device only has electrical voltage on its connecting cable once it has been prepared for operation, i.e., connected to the elevator system's emergency power connection. The service technician can therefore bring and connect the emergency power device to the elevator system without electrical voltage, and then activate the emergency power device on-site by flipping the battery switch.

[0053] In a further embodiment of the method, the method also includes the step of switching the emergency power switch on the elevator system. The switching can occur, in particular, by flipping the emergency power switch. In one embodiment, the emergency power switch is switched after the switch of the emergency power device has been switched.

[0054] By flipping the emergency power switch on the elevator system, there is another way to safely turn on the emergency power device and the elevator system in emergency operation. This allows the service technician to first connect the emergency power device to the elevator system, then turn on the battery switch of the emergency power device, and then turn on the elevator system's emergency power switch, thus closing the circuit between the emergency power device and the elevator system. Emergency operation of the elevator system is only possible after both switches have been flipped.

[0055] The invention is further explained below using exemplary embodiments in the figures. Herein:

[0056] Fig. 1 : a schematic representation of an emergency power device in a first embodiment,

[0057] Fig. 2: an exploded view of the emergency power device from Fig. 1,

[0058] Fig. 3 : the energy storage holding device of the emergency power device from Fig.

[0059] 1,

[0060] Fig. 4: a plan view of a partial section of the base plate of the emergency power device from Fig. 1 in a cross-section.

[0061] Fig. 5: shows an elevator system according to an embodiment.

[0062] Fig. 1 shows an emergency power device 3. The emergency power device 3 comprises an energy storage device 5, which in this exemplary embodiment is designed as a battery 6. The emergency power device 3 further comprises an energy storage holding device 7. The energy storage holding device 7 has a handle 9. The handle 9 consists of a handle section 10 and two further handle sections running obliquely to the base plate 15. The base plate 15 has vertical struts 13, which make it possible to connect the base plate 15 to the energy storage device 5 and serve as fastening means 11. For this purpose, the emergency power device 3 in this exemplary embodiment has holes with screws formed in the struts.When the energy storage holding device 7 is placed on the energy storage device 5 as described below, the holes in the vertically extending struts 13 are aligned with internal threads 33 of the housing 49 of the energy storage device 5 such that the vertical struts 13 can be easily connected to the housing 49 using the screws. The housing 49 of the energy storage device has a first and third (not visible) housing section 51, with the third housing section being parallel to the first housing section. These housing sections 51 are vertically extending housing walls of the energy storage device 5. The housing 49 further has a second housing section 52. This second housing section 52 is a horizontally extending housing section and forms the top side of the housing 49. The base plate 15 of the energy storage holding device 7 lies flat on the second housing section 52.The vertical struts 13 extend from the base plate 15 or protrude from it in such a way that the vertical struts 13 lie flat on the first and third housing sections 51 or rest against it. The base plate 15 is designed in the longitudinal direction such that it essentially covers the entire second housing section 52 with the exception of a partial section of the second housing section 52 from which the connecting cable 59 is led. The direct attachment of the energy storage holding device 7 with handle 9 and handle section 10 next to the connecting cable 59 thus makes it possible to fasten the connecting cable 59 to the handle section 10. The base plate 15 of the energy storage holding device 7 further has a battery switch 23 integrated into the base plate 15.

[0063] Fig. 2 shows the emergency power device 3 together with part of the energy storage device 5 embodied as a battery 6 in an exploded view. The base plate 15 is connected, on the one hand, to the handle 9 and, on the other hand, to the fastening means 11, which are embodied as vertical struts 13, or is designed as a single piece. Two of the vertical struts 13 are connected or reinforced to one another by a horizontally extending strut 17. The base plate 15 further has a second recess 25 in which the battery switch 23 is accommodated (see also Fig. 4). Fig. 2 also shows the energy storage device 5, which is embodied as a battery 6. The energy storage device 5 has a housing 49 which has a first housing section 51 and a second housing section 52. The first housing section 51 and the second housing section 52 are arranged perpendicular to one another.The first housing section 51, like the third housing section (not visible), is a vertically running side wall, with the second housing section 52 being a horizontally running housing section and forming the top side of the housing 49. The base plate 15 is designed so that the base plate 15 can be placed flat on the second housing section 52. The width of the base plate 15 is such that when the base plate 15 is placed on the second housing section 52, the vertical struts 13 lie flat against the first housing section 51 and the third housing section, respectively. The internal threads 33 are arranged such that when the base plate 15 is placed, through holes (not referenced) in the vertical struts 13 lie on or are aligned with the internal threads 33. In this way, they can be connected with screws. The handle 9 comprises a handle section 10, which is designed to carry the emergency power device 33.The handle section 10 runs parallel to the base plate 15.

[0064] Fig. 3 shows a perspective view of the energy storage holding device 7. The elements already described above with the same reference numerals will not be described again. Reference is made to Figs. 1 and 2. In Fig. 3, the horizontal strut 17 and the first recess 21 formed in the horizontal strut 17 are visible. Furthermore, the second recess 25 in the base plate 15 is visible. The second recess 25 is narrower on this side of the base plate 15 than it is on the other side of the base plate 15 (see Fig. 2), with cables, in particular switch cables 19, being led out of this side of the recess (cables not shown, see Fig. 4). The first recess 21 in the horizontal strut 17 is provided for the passage of cables, in particular the switch cables 19, as described below with reference to Fig. 4.

[0065] Fig. 4 shows the base plate 15 of the energy storage holding device 7 in a sectional view. The second recess 25 is shown, and it can be seen that it is wider on one side of the base plate 15 than on the other side of the base plate 15. The second recess 25 therefore narrows from one side of the base plate 15 to the other. The second recess 25 forms a continuous and narrowing channel in the base plate 15. The battery switch 23 is introduced into the second recess 25, with cables running from the battery switch 23 into the tapered section of the second recess 25 and exiting the second recess 25 and then running through the first recess 21 in the horizontal strut 17 to a contact or plug connector in the energy storage housing 49.The cables connecting the battery switch 23 to the contact or connector in the housing 49 are designated by reference numeral 19 and form the switch cable. For electrical connection, the connector 57 located in the first housing section 51 is provided on the energy storage device 5, and a mating connector (not separately referenced) is provided on the battery cable 19.

[0066] Fig. 5 shows an embodiment of an elevator installation 1, such as a passenger or freight elevator. The elevator installation 1 has an elevator shaft 28, a car 27, two counterweights 29, two drives 35, each having a traction section 18b, suspension means 31, and a brake (not shown). The drives 35 are fastened in the region of the ceiling 30 of the elevator shaft 28, in particular supported on a guide rail of the elevator installation 1 (not shown) or suspended from the ceiling 30 of the elevator shaft 28. An area in the elevator shaft 28 that borders the ceiling 30 can also be referred to as the shaft head. Thus, the drives 35 are supported / suspended in the shaft head. The suspension means 31 can, for example, have one or more ropes or belts.

[0067] The car 27 is arranged in the elevator shaft 28 so that it can be moved vertically. The counterweights 29 are each connected to the car 27 via the corresponding support means 31. The traction sections 18b rotate during operation of the drive 35. The support means 31 runs over the traction section 18b and is movable such that the car 27 and the counterweight 29 can be moved vertically by operating the drive 35 in cooperation with the support means 31. In particular, the car 27 can be moved vertically from a first floor with a first access 48 to a second floor with a second access 46, or vice versa. Optionally, the elevator shaft 28 can extend over more than two floors with corresponding accesses. The counterweights 29 are preferably of equal weight. The brake enables the car 27 to be decelerated and / or immobilized.Alternatively or additionally, a further brake may be arranged to slow down and / or lock the counterweight 29.

[0068] A control device (not shown) for controlling the drive 35 and / or the brake can be communicatively coupled to the drive 35 or the brake, respectively. The two drives 35 can be configured in a master-slave configuration. For example, the two drives 35 can be torque-controlled and synchronized. In particular, the two drives 35 are controlled and / or synchronized to each other such that they vertically align the car 27 and vertically displace the counterweights 29 uniformly relative to each other.

[0069] The elevator system 1 further has an emergency power connection 45 on the lower floor at access 48. The emergency power connection 45 includes an emergency power switch 47. The emergency power device 3 can be connected to the elevator system 1 via the emergency power connection 45, in particular by means of the connection cable 19 of the emergency power device 3. In this exemplary embodiment of the elevator system 1, after the emergency power switch 47 is switched on, the door drives 41, the door locks 43, the brake(s), the control system, and the drives 35 can be supplied directly with energy (48 V DC) from the emergency power device 3. This makes it possible to operate these components even in emergency mode. For example, the door lock and the door drives can be opened or operated.

Claims

- TI - 1. Emergency power device (3) for an elevator installation (1), comprising an energy storage device (5), in particular a battery, in particular a 48V battery, an energy storage holding device (7), wherein the energy storage holding device (7) and the energy storage device (5) are connected in a non-positive and / or positive manner in an assembled state, wherein the emergency power device (3) is portable, in particular portable by a person.

2. Emergency power device (3) according to claim 1, wherein the emergency power device (3) is designed to be lifted by one person with one hand.

3. Emergency power device (3) according to one of the preceding claims, wherein the emergency power device (3) is designed to supply electricity to a drive (35) of the elevator installation (1).

4. Emergency power device (3) according to one of the preceding claims, wherein the emergency power device (3) is designed to electrically supply a door drive (41) and / or door lock (43) of the elevator system (1).

5. Emergency power device according to one of the preceding claims, wherein the energy storage holding device (7) and the energy storage device (5) are connected by means of screws in an assembled state.

6. Emergency power device (3) according to one of the preceding claims, wherein the energy storage holding device (7) has a switch, in particular a battery switch (23), wherein the switch in a mounted state is electrically connected to the energy storage device (5), in particular via a switch cable (19), so that an electrical connection to the energy storage device (5) can be interrupted or closed.

7. Emergency power device (3) according to one of the preceding claims, wherein the energy storage device (3) has a plug connector (57) for electrically contacting the energy storage device (3), wherein the plug connector (57) is integrated in particular into a housing section of the energy storage device (5).

8. Emergency power device (3) according to claim 6 in conjunction with claim 7, wherein the switch in the mounted state is connected to the connector (57) via the switch cable (19).

9. Emergency power device (3) according to one of the preceding claims, wherein the energy storage holding device (7) comprises a handle (9), a base plate (15), and a fastening means (11), in particular at least two struts (13) extending vertically away from the base plate (15) and designed for fastening to a first or third lateral housing section (51) of the energy storage device (5).

10. Emergency power device (3) according to claim 9, wherein the fastening means (11) comprises four struts (13) extending vertically from the base plate (15) and designed for fastening to a first or third lateral housing section (51) of the energy storage device (5), wherein two of the vertical struts (13) are connected by a horizontal strut (17) and the horizontal strut (17) preferably has a first recess (21) for the passage of the switch cable (19).

11. Emergency power device (3) according to claim 10, wherein the energy storage device (5) has a housing (49) with at least four threads, in particular internal threads (33), wherein in an assembled state, a screw passing through a vertical strut (13) is screwed in.

12. Emergency power device (3) according to one of claims 6 to 8 in conjunction with one of claims 9 to 11, wherein the base plate (15) has a second recess (25) extending through the base plate (15), wherein a switch cable (19) is inserted into the second embodiment at a cable-side end and connected to the switch, wherein the switch is arranged at a switch-side end of the second recess (25).

13. Emergency power device (3) according to one of the preceding claims, wherein the energy storage device (5) further comprises a connecting cable (59), wherein the connecting cable (59) emerges from a second housing section (52) of the housing (49) of the energy storage device (5), wherein the base plate (15) in the assembled state of the energy storage holding device (7) also rests on the second housing section (52), wherein the connecting cable is designed in particular for connecting the emergency power device (3) to the elevator installation (1).

14. Emergency power supply according to claim 13 in conjunction with one of claims 9 to 12, wherein the handle (9) comprises a handle section (10) running parallel to the base plate (15), said handle section (10) being designed for guiding and fastening the connecting cable (59).

15. Emergency power device (3) according to one of the preceding claims, wherein the energy storage device (5) comprises a charger, in particular a battery charger (55).

16. Elevator installation (1) with a car (27) and at least one counterweight (29), wherein the car (27) and the counterweight (29) are connected to one another via a support means (31); wherein the elevator installation (1) comprises: - at least one controller (33); at least one drive (35), in particular a 48 V drive; - at least one brake (37); - at least one floor door (39) with a door drive (41) and / or door lock (43); an emergency power connection (45) and preferably an emergency power switch (47) for the electrical supply of at least one of the components control (33), drive (35), brake (37), door drive (41) and / or door lock (43) via an emergency power device, in particular an emergency power device (3) according to one of the preceding claims.

17. Elevator installation (1) according to claim 16, further comprising a second drive (35), a second support means (31) and a second counterweight (29).

18. Elevator installation (1) according to one of claims 16 to 17, wherein the at least one drive (35) can be supplied electrically via the emergency power connection (45).

19. Elevator installation according to one of claims 16 to 18, wherein the at least one door drive (41) and / or door lock (43) can be supplied electrically via the emergency power connection.

20. Elevator system comprising an elevator installation (1) according to one of claims 16 to 19 and an emergency power device (3) according to one of claims 1 to 15.

21. A method for emergency operation of an elevator installation (1) according to one of claims 16 to 19 and / or an elevator system according to claim 20, wherein the method comprises the following steps Connecting an emergency power device (3) according to one of claims 1 to 15 to the emergency power connection (45) of the elevator installation (1), - Operating at least one of the components control (33), drive (35), brake (37), door drive (41) and / or door lock (43) with energy from the energy storage device (5) of the emergency power device (3).

22. The method according to claim 21, further comprising the step - Switching, in particular by flipping, a switch, in particular a battery switch (23), of the emergency power device (3).

23. The method of claim 21 or claim 22, further comprising the step - Switching, in particular by flipping, the emergency power switch (47) on the lift installation (1), wherein the switching of the emergency power switch (47) preferably takes place after the switching of the switch of the emergency power device.

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