Energy feedback system for high-speed escalators

Abstract

The utility model provides a kind of energy feedback system for high-speed elevator, including elevator car, energy storage component and main control component, the top end and the bottom end of the elevator car are equipped with the fairing for guiding air respectively, the side of the fairing away from elevator car is equipped with energy conversion component, the energy conversion component is one or more in wind generator and piezoelectric power generation unit, the piezoelectric power generation unit bending deformation can generate electric energy, the energy storage component is electrically connected with energy conversion component, the main control component is electrically connected with energy storage component.The utility model converts the huge air resistance that needs to overcome in high-speed elevator operation into available electric energy, avoids energy waste.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology, and in particular relates to an energy feedback system for high-speed elevators. Background Technology

[0002] As a crucial vertical transportation tool in modern high-rise buildings, elevators are receiving increasing attention for their operational efficiency, stability, and energy conservation. With the continuous increase in building height, the demand for high-speed elevators (operating speed ≥ 2.5 m / s) is growing significantly to meet the requirements of rapid passage. The energy consumption level of elevators not only directly affects operating costs but also relates to the green and sustainable development of buildings. Therefore, improving the energy efficiency of high-speed elevators and reducing energy loss during operation has become an important goal for continuous optimization in the industry.

[0003] Traditional elevator systems, especially high-speed elevators, face significant energy consumption challenges during operation. When the elevator car moves at high speed within the narrow shaft, it generates strong airflow turbulence and air resistance (wind resistance). The energy consumed to overcome this wind resistance increases dramatically with speed, making it one of the main sources of energy consumption in high-speed elevators. However, there are currently no effective means to recover the enormous energy loss caused by overcoming air resistance during high-speed elevator operation (especially during the upward phase). This energy is typically dissipated as heat and sound, resulting in considerable energy waste. Utility Model Content

[0004] The purpose of this invention is to provide an energy feedback system for high-speed elevators, which converts the enormous air resistance that high-speed elevators need to overcome into usable electrical energy, thus avoiding energy waste.

[0005] This utility model is achieved through the following technical solution:

[0006] A high-speed elevator energy feedback system includes an elevator car, an energy storage component, and a main control component. The top and bottom of the elevator car are respectively provided with air guide hoods for guiding airflow. An energy conversion component is provided on the side of the air guide hood away from the elevator car. The energy conversion component is one or more of a wind turbine generator and a piezoelectric generator unit. The piezoelectric generator unit can generate electrical energy by bending and deforming. The energy storage component is electrically connected to the energy conversion component, and the main control component is electrically connected to the energy storage component.

[0007] Furthermore, the flow guide has an arc-shaped structure.

[0008] Furthermore, the energy storage component is a battery.

[0009] Furthermore, the energy conversion components are configured to be multiple, and the multiple energy conversion components are spaced apart on the shroud.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] (1) By using energy conversion components, the huge air resistance that needs to be overcome during the operation of high-speed elevators is converted into usable electrical energy, thereby capturing and converting the energy that was originally wasted in overcoming wind resistance into electrical energy, thus avoiding energy waste.

[0012] (2) The flow guide can optimize the airflow path and reduce drag. The energy conversion components are placed on the surface of the flow guide, which effectively utilizes the area with the highest airflow velocity, so that the energy capture efficiency can be maximized and does not occupy too much space. It is suitable for the narrow environment of elevator shaft.

[0013] (3) The energy recovery efficiency of this system is highly positively correlated with speed. The airflow energy is huge, and the recovery value of the system is more prominent, which can effectively make up for the extra energy consumption caused by high speed.

[0014] (4) The wind resistance generated during the high-speed elevator movement is effectively absorbed by the energy conversion system, which can effectively reduce the noise problem during the operation of the high-speed elevator. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the energy feedback system for high-speed elevators according to this utility model.

[0016] In the diagram, 1-elevator car, 2-energy storage component, 3-main control component, 4-flow guide, 5-energy conversion component, 6-shaft. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the high-speed elevator energy feedback system of this utility model. A high-speed elevator energy feedback system includes an elevator car 1, an energy storage component 2, and a main control component 3. The top and bottom of the elevator car 1 are respectively provided with airflow guides 4 for guiding airflow. An energy conversion component 5 is provided on the side of the airflow guide 4 away from the elevator car 1. The energy conversion component 5 is one or more of a wind turbine generator and a piezoelectric generator unit. The piezoelectric generator unit can generate electrical energy by bending and deforming. The energy storage component 2 is electrically connected to the energy conversion component, and the main control component 3 is electrically connected to the energy storage component 2.

[0023] The usage process of this utility model's high-speed elevator energy feedback system is as follows:

[0024] Under the control of the main control component 3, the elevator car 1 moves vertically at high speed inside the shaft 6. When the elevator car 1 moves upward at high speed, the air in contact with the outer surface of the guide shroud 4 at the top of the elevator car 1 is compressed and flows at high speed along the surface of the guide shroud 4. The space in contact with the outer surface of the guide shroud 4 at the bottom of the car forms a brief negative pressure due to the high-speed movement of the elevator car 1, and the surrounding air moves towards the negative pressure area and flows at high speed along the surface of the guide shroud 4. In one embodiment, the guide shroud 4 has an arc-shaped structure. At this time, the energy conversion component 5 collects the wind energy generated by the air movement and converts the wind energy into electrical energy, such as by converting wind energy into electrical energy through a wind turbine, or by generating electrical energy through the bending deformation of a piezoelectric power generation unit under the pressure of wind. The wind turbine and piezoelectric power generation unit are existing technologies and can be purchased directly from the market. The electrical energy generated by the energy conversion component 5 is sent to the energy storage component 2 for storage, and the energy storage component 2 feeds the electrical energy back to the main control component 3. In the event of a power outage, this is used for emergency power supply to the elevator to prevent people from being trapped when the elevator stops. In one embodiment, the energy storage component 2 is a battery. When the elevator car 1 is descending at high speed, the air in contact with the outer surface of the deflector 4 located at the bottom of the elevator car 1 is compressed and flows at high speed along the surface of the deflector 4. The space in contact with the outer surface of the deflector 4 located at the top of the car forms a brief negative pressure due to the high-speed movement of the elevator car 1, and the surrounding air moves towards the negative pressure area and flows at high speed along the surface of the deflector 4. The remaining process is the same as when the elevator car 1 is ascending at high speed, and will not be described again here.

[0025] This utility model's high-speed elevator energy feedback system uses energy conversion component 5 to convert the enormous air resistance that high-speed elevators need to overcome into usable electrical energy, thereby capturing and converting the energy that would otherwise be wasted in overcoming wind resistance into electrical energy, thus avoiding energy waste. The airflow guide 4 optimizes the airflow path and reduces drag, and the energy conversion component 5 is placed on the surface of the airflow guide 4, effectively utilizing the area with the highest airflow velocity, maximizing energy capture efficiency without occupying too much additional space, making it suitable for the confined environment of the elevator shaft 6. The energy recovery efficiency of this system is highly correlated with speed (airflow velocity is related to the speed of the elevator car 1). The greater the airflow energy, the more prominent the recovery value of the system, effectively compensating for the additional energy consumption caused by high speed. The wind resistance generated during the high-speed elevator movement is effectively absorbed by the energy conversion system, which can effectively reduce the noise problem during the operation of the high-speed elevator.

[0026] In one embodiment, the energy conversion components 5 are configured to be multiple, and these multiple energy conversion components 5 are spaced apart on the fairing 4. Arranging multiple energy conversion components 5 increases energy conversion efficiency. Furthermore, depending on the site conditions, wind turbines and piezoelectric power generation units can be deployed at certain locations on the fairing 4.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An energy feedback system for high-speed elevators, characterized in that, The system includes an elevator car, an energy storage component, and a main control component. The top and bottom of the elevator car are respectively provided with air guide hoods for guiding airflow. An energy conversion component is provided on the side of the air guide hood away from the elevator car. The energy conversion component is one or more of a wind turbine generator and a piezoelectric generator unit. The piezoelectric generator unit can generate electrical energy by bending and deforming. The energy storage component is electrically connected to the energy conversion component, and the main control component is electrically connected to the energy storage component.

2. The energy feedback system for high-speed elevators according to claim 1, characterized in that, The air deflector has an arc-shaped structure.

3. The energy feedback system for high-speed elevators according to claim 1, characterized in that, The energy storage component is a battery.

4. The energy feedback system for high-speed elevators according to claim 1, characterized in that, The energy conversion components are configured to be multiple, and the multiple energy conversion components are spaced apart on the flow guide.

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