Elevator without machine room

Abstract

The utility model provides an elevator without a machine room, and relates to the technical field of elevator equipment. The elevator room without the machine room comprises a lift car and a power generation device, the elevator without the machine room further comprises a power supply device, the power supply device is arranged in a hoistway, the power supply device and the lift car are spaced by a preset distance, and the power supply device is connected with the power generation device; the driving unit is located in the hoistway, the driving unit is arranged to be connected with the power supply device and the lift car, and the driving unit is used for driving the lift car to move up and down along the hoistway; and the energy recovery unit is connected with the power supply device, and the energy recovery unit is used for converting mechanical energy generated by up-and-down movement of the lift car into electric energy and storing the electric energy in the power supply device, so that the mechanical energy generated by up-and-down movement of the lift car is recycled, energy is saved, and the space utilization rate can be increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator equipment, and in particular relates to a machine room-less elevator. Background Art

[0002] Elevators have become an indispensable lifting equipment for high-rise residential and office buildings, bringing great convenience to people's production and life. However, since traditional elevators usually use the mains to connect the power box outside the shaft to directly power the traction machine, they cannot operate once the power is cut off, and the energy consumption is huge, which easily leads to energy waste. In addition, the current energy shortage and the contradiction between power supply and demand are becoming increasingly prominent, and the call for saving electricity is growing.

[0003] In addition, traditional elevators usually store equipment such as power supply devices, drive devices and speed limiters in the machine room, and set the machine room at the top or bottom of the car, that is, the shaft needs to set up additional accommodation space for the machine room, resulting in a decrease in the space utilization of the elevator. Utility Model Content

[0004] One purpose of the utility model is to provide a machine room-less elevator, so as to solve the technical problems in the prior art that the machine room-less elevator uses a mains power supply directly to supply power, resulting in energy waste and occupying a large space.

[0005] Another object of the utility model is to improve the safety and stability of the operation of the machine room-less elevator.

[0006] According to the purpose of the utility model, the utility model provides a machine room-less elevator, including a car and a power generation device, and the machine room-less elevator also includes:

[0007] A power supply device is arranged in the hoistway, the power supply device is separated from the car by a preset distance and is connected to the power generation device;

[0008] A driving unit is located in the hoistway, the driving unit is configured to be connected to the power supply device and the car respectively, and the driving unit is used to drive the car to move up and down along the hoistway;

[0009] An energy recovery unit is connected to the power supply device, and is used for converting the mechanical energy generated by the up and down movement of the car into electrical energy and storing it in the power supply device.

[0010] Optionally, the power generation device uses new energy to generate electricity.

[0011] Optionally, the power supply device includes:

[0012] An energy storage unit is located at a side of the shaft, and the energy storage unit is connected to the power generation device;

[0013] An inverter unit is located at a side of the shaft, and the inverter unit is electrically connected to the energy storage unit and the drive unit respectively to convert the electric energy of the energy storage unit and output it to the drive unit.

[0014] Optionally, the inverter unit and the energy storage unit are flat structures.

[0015] Optionally, the energy storage unit includes a capacitor and a battery.

[0016] Optionally, the energy recovery unit is a generator.

[0017] Optionally, it also includes:

[0018] The mounting frame is arranged in a horizontal direction and is fixedly connected to the side wall of the well, and is used for mounting the energy storage unit, the drive unit and the inverter unit.

[0019] Optionally, a shock absorbing component is provided on the mounting frame.

[0020] The machine room-less elevator of the utility model is provided with an energy recovery device connected to a power supply device, and the energy recovery device is used to convert the mechanical energy generated by the up and down movement of the car into electrical energy and store it in the power supply device. When the elevator is running, the electrical energy stored in the energy storage unit is consumed first, that is, the electrical energy converted by the energy recovery device and stored in the energy storage unit can be supplied to the elevator operation, so that the mechanical energy generated by the up and down movement of the car can be recovered and reused, thereby saving energy and avoiding energy waste. In addition, the power supply device, the drive unit and the energy recovery unit of this embodiment are all arranged in the hoistway, avoiding the setting of a separate machine room for storing the above-mentioned devices, thereby saving the space of the hoistway and improving the space utilization rate of the machine room-less elevator.

[0021] Furthermore, the inverter unit and energy storage unit of the utility model have a flat structure, which can increase the distance between the car and the inverter unit and the energy storage unit, and avoid the car from touching the inverter unit and the energy storage unit arranged on the side of the shaft during operation, thereby avoiding damage to the car, inverter unit or energy storage unit, thereby improving the safety and stability of the operation of the machine roomless elevator.

[0022] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0024] Figure 1 is a schematic top view of a machine room-less elevator according to an embodiment of the utility model;

[0025] Figure 2 It is a schematic front view of a machine room-less elevator according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100-machine roomless elevator, 200-hoistway, 10-car, 20-power generation device, 30-power supply device, 40-drive unit, 50-energy recovery unit, 31-energy storage unit, 32-inverter unit. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] In particular, the utility model provides a machine room-less elevator 100, that is, the power supply device 30, the drive unit 40 and other elevator components in the traditional elevator machine room are transferred to the hoistway 200 to save the space occupied by the hoistway 200 and improve the space utilization of the elevator.

[0033] Figure 1 is a schematic top view of a machine room-less elevator according to an embodiment of the utility model, Figure 2 It is a schematic front view of a machine room-less elevator according to an embodiment of the utility model.

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the utility model provides a machine room-less elevator 100. The machine room-less elevator 100 includes a car 10 and a power generation device 20, and the machine room-less elevator 100 also includes a power supply device 30, a drive unit 40 and an energy recovery unit 50. The power supply device 30 is arranged in the hoistway 200, the power supply device 30 is separated from the car 10 by a preset distance and is connected to the power generation device 20, the drive unit 40 is located in the hoistway 200, the drive unit 40 is arranged to be connected to the power supply device 30 and the car 10 respectively, the drive unit 40 is used to drive the car 10 to move up and down along the hoistway 200, and the energy recovery unit 50 is connected to the power supply device 30, and the energy recovery unit 50 is used to convert the mechanical energy generated by the up and down movement of the car 10 into electrical energy and store it in the power supply device 30. Here, the energy recovery unit 50 is arranged on the side of the hoistway 200, and the power supply device 30 and the drive unit 40 have no overlapping parts with the vertical projection of the car 10.

[0035] The machine room-less elevator 100 of this embodiment is provided with an energy recovery device connected to the power supply device 30. The energy recovery device is used to convert the mechanical energy generated by the up and down movement of the car 10 into electrical energy and store it in the power supply device 30. When the elevator is running, the electrical energy stored in the energy storage unit 31 is consumed first, that is, the electrical energy converted by the energy recovery device and stored in the energy storage unit 31 can be supplied to the elevator operation, so that the mechanical energy generated by the up and down movement of the car 10 can be recovered and reused, thereby saving energy and avoiding energy waste. In addition, the power supply device 30, the drive unit 40 and the energy recovery unit 50 of this embodiment are all arranged in the hoistway 200, avoiding the need to set up a separate machine room for storing the above-mentioned devices, thereby saving space in the hoistway 200 and improving the space utilization rate of the machine room-less elevator 100.

[0036] In this embodiment, the power generation method of the power generation device 20 is new energy power generation. Specifically, the new energy can be solar energy or wind energy, that is, the power generation device 20 can be solar power generation or wind power generation. In special application scenarios, such as at the seaside or deep sea, the power generation device 20 can also be tidal power generation. Here, the power generation device 20 is arranged outside the shaft 200, so that the power generation device 20 converts solar energy or wind energy into electrical energy, thereby charging the power supply device 30.

[0037] In this embodiment, the power supply device 30 includes an energy storage unit 31 and an inverter unit 32. The energy storage unit 31 is located at the side of the shaft 200 and is connected to the power generation device 20. The inverter unit 32 is located at the side of the shaft 200. The inverter unit 32 is electrically connected to the energy storage unit 31 and the drive unit 40, respectively, to convert the electric energy of the energy storage unit 31 and output it to the drive unit 40. Specifically, the energy storage unit 31 is used to store the electric energy supplied by the power generation device 20 for supplying the elevator operation. The inverter unit 32 can realize the bidirectional conversion of direct current and alternating current, that is, the inverter unit 32 can convert the electric energy of the energy storage unit 31 and output it to the drive unit 40 to drive the car 10 to move up and down. Here, the energy storage unit 31 and the inverter unit 32 can be arranged on one side of the shaft 200, or they can be arranged on different sides of the shaft 200.

[0038] In this embodiment, the inverter unit 32 and the drive unit 40 are arranged on one side of the car 10 in the hoistway 200, and the energy storage unit 31 can be arranged on the same side of the inverter unit 32, or on a side opposite to or adjacent to the inverter unit 32. Here, the energy storage unit 31 and the inverter unit 32 can be arranged on the inner wall of the hoistway 200, or on other structures in the hoistway 200.

[0039] In this embodiment, the energy storage unit 31 and the inverter unit 32 are both arranged on the side of the shaft 200. Compared with the prior art in which the power supply device 30 is arranged at the top and bottom of the car 10, this embodiment can save the installation space of the shaft 200, that is, in this embodiment, the energy storage unit 31 and the inverter unit 32 can be installed without increasing the height of the shaft 200, thereby improving the space utilization rate of the machine room-less elevator 100.

[0040] In this embodiment, the inverter unit 32 is arranged at a position close to the drive unit 40, the energy transmission efficiency between the inverter unit 32 and the drive unit 40 is significantly improved, and the energy attenuation is effectively reduced, thereby improving the energy utilization efficiency of the power supply device 30 in the machine room-less elevator 100 and reducing energy consumption and operating costs.

[0041] In this embodiment, the inverter unit 32 and the energy storage unit 31 are flat structures. Specifically, the inverter unit 32 and the energy storage unit 31 can be set to a rectangular parallelepiped or other flat cubic structure, which can increase the distance between the car 10 and the inverter unit 32 and the energy storage unit 31, and avoid the car 10 from touching the inverter unit 32 and the energy storage unit 31 set on the side of the hoistway 200 during operation, thereby avoiding damage to the car 10, the inverter unit 32 or the energy storage unit 31, thereby improving the safety and stability of the operation of the machine room-less elevator 100.

[0042] In this embodiment, the energy storage unit 31 includes a capacitor and a battery. Specifically, the energy storage unit 31 is used to store the electric energy supplied to the inside of the energy storage unit 31 by the power generation device 20, that is, the energy storage unit 31 includes both a capacitor and a battery, which can improve the energy storage capacity of the energy storage unit 31, so that the energy storage unit 31 can store more electric energy required for the operation of the elevator, and avoid accidents caused by insufficient power supply of the energy storage unit 31 when the elevator is running.

[0043] In this embodiment, the energy recovery unit 50 is a generator. Specifically, the energy recovery unit 50 is used to convert the mechanical energy generated by the up and down movement of the car 10 into electrical energy and store it in the power supply device 30, that is, after the energy recovery unit 50 converts the mechanical energy into electrical energy, it transmits the electrical energy to the power supply device 30 for storage. The above-mentioned stored electrical energy can provide energy support when the elevator system needs it, for example, when the elevator needs to start, accelerate or perform other operations. In other embodiments, the energy recovery unit 50 can also be a piezoelectric device.

[0044] In this embodiment, the machine room-less elevator 100 further includes a mounting frame, which is arranged in the horizontal direction, fixedly connected to the side wall of the hoistway 200, and used to install the energy storage unit 31, the drive unit 40, and the inverter unit 32. Specifically, the mounting frame includes a first crossbeam, a second crossbeam, a first suspension beam, and a second suspension beam, the first crossbeam and the second crossbeam are arranged in the horizontal direction, the first suspension beam and the second suspension beam are arranged in the vertical direction, the first suspension beam is fixedly connected to the first crossbeam, the second suspension beam is fixedly connected to the second crossbeam, a bearing plate is fixedly arranged at the bottom of the first suspension beam and the second suspension beam, the bearing plate is used to place the drive unit 40, the first crossbeam and the second crossbeam are arranged side by side, and are used to fix and install the inverter unit 32 and the energy storage unit 31, so that the energy storage unit 31, the drive unit 40, and the inverter unit 32 are arranged together on the mounting frame, thereby reducing energy consumption loss.

[0045] In this embodiment, a shock absorbing component is provided on the mounting frame. Specifically, the shock absorbing component is provided on the bearing plate and is in contact with the driving unit 40 to reduce the noise generated when the driving unit 40 is running.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A machine room-less elevator, comprising a car and a power generation device, characterized in that: The machine room-less elevator also includes: A power supply device is arranged in the hoistway, the power supply device is separated from the car by a preset distance and is connected to the power generation device; A driving unit is located in the hoistway, the driving unit is configured to be connected to the power supply device and the car respectively, and the driving unit is used to drive the car to move up and down along the hoistway; An energy recovery unit is connected to the power supply device, and is used for converting the mechanical energy generated by the up and down movement of the car into electrical energy and storing it in the power supply device.

2. The machine room-less elevator according to claim 1, characterized in that: The power generation method of the power generation device is new energy power generation.

3. The machine room-less elevator according to claim 2, characterized in that: The power supply device comprises: An energy storage unit is located at a side of the shaft, and the energy storage unit is connected to the power generation device; An inverter unit is located at a side of the shaft, and the inverter unit is electrically connected to the energy storage unit and the drive unit respectively to convert the electric energy of the energy storage unit and output it to the drive unit.

4. The machine room-less elevator according to claim 3, characterized in that: The inverter unit and the energy storage unit are flat structures.

5. The machine room-less elevator according to claim 4, characterized in that: The energy storage unit includes a capacitor and a battery.

6. The machine room-less elevator according to claim 5, characterized in that: The energy recovery unit is a generator.

7. The machine room-less elevator according to claim 6, characterized in that: Also includes: The mounting frame is arranged in a horizontal direction and is fixedly connected to the side wall of the well, and is used for mounting the energy storage unit, the drive unit and the inverter unit.

8. The machine room-less elevator according to claim 7, characterized in that: The mounting frame is provided with a shock absorbing component.

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