Photoelectric storage and charging system for elevator

Abstract

The photoelectric storage and charging system comprises a photovoltaic power generation panel, an energy storage battery, an MPPT control module, a bidirectional battery charging and discharging module, a bidirectional inverter circuit module, an energy management module, a mains supply module and an elevator all-in-one machine. The bidirectional battery charging and discharging module is in bidirectional connection with the bidirectional inverter circuit module, the bidirectional inverter circuit module is in bidirectional connection with the energy management module, the mains supply module is in bidirectional connection with the energy management module, and the mains supply module and the energy management module are both in unidirectional connection with the elevator all-in-one machine. The photovoltaic power generation panel is bidirectionally connected with the bidirectional battery charging and discharging module through the MPPT control module; the energy storage battery is in two-way connection with the MPPT control module and the two-way battery charging and discharging module, during power failure, switching of the mains supply, the photovoltaic power or the energy storage power can be completed within 10-20 ms, power failure is completely non-inductive, the situation that an elevator stops running due to power failure is avoided, the power utilization cost can be greatly reduced, and compared with the prior art, the energy storage battery charging and discharging system has the advantages that the energy storage battery charging and discharging system is simple in structure and convenient to use. And the use value is high.

Description

Technical Field

[0001] This application relates to the field of elevator equipment technology, and in particular to a photoelectric energy storage and charging system for elevators. Background Technology

[0002] Elevators, as common vertical lifting tools, are widely used in residential areas, large shopping malls, and office buildings. They have advantages such as high transport height, high acceleration, and rapid lifting, and their application range is very wide. However, in daily use, due to varying environments and increased usage frequency, elevator circuits may occasionally malfunction. This can cause the normally functioning elevator lighting system to go out, plunging the elevator car into darkness and causing anxiety among passengers. To address this emergency, a patent (CN201820766562.0) discloses an elevator emergency power supply that solves this problem. However, this elevator emergency power supply still has the following issues in use:

[0003] First, the aforementioned elevator emergency power supply will only start a few seconds to tens of seconds after the elevator loses power. By this time, the elevator has stopped running due to the power outage, and only the emergency lighting is on inside the car, resulting in a very poor elevator experience for passengers.

[0004] Secondly, the aforementioned elevator emergency power supply is limited to a single type of power source, mainly relying on mains power. It cannot utilize clean energy sources and cannot collect and convert the energy generated during elevator operation, resulting in high operating costs.

[0005] To address the shortcomings of existing technologies, this application discloses a photoelectric energy storage and charging system for elevators. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this application discloses a photoelectric energy storage and charging system for elevators.

[0007] To achieve the above objectives, the technical solution adopted in this application is: a photovoltaic energy storage and charging system for elevators, comprising a photovoltaic power generation panel, an energy storage battery, an MPPT control module, a bidirectional battery charging and discharging module, a bidirectional inverter circuit module, an energy management module, a mains power module, and an integrated elevator unit;

[0008] The bidirectional battery charging and discharging module is bidirectionally connected to the bidirectional inverter circuit module, the bidirectional inverter circuit module is bidirectionally connected to the energy management module, the mains power module is bidirectionally connected to the energy management module, and both the mains power module and the energy management module are unidirectionally connected to the elevator integrated machine.

[0009] The photovoltaic panel is bidirectionally connected to the bidirectional battery charging and discharging module via the MPPT control module.

[0010] The energy storage battery is bidirectionally connected to the MPPT control module and the bidirectional battery charging and discharging module.

[0011] A further preferred embodiment includes a building emergency circuit module for supplying power to emergency electrical equipment in the building, wherein the mains power module and the energy management module are unidirectionally connected to the building emergency circuit module.

[0012] More preferably, the emergency electrical equipment includes lighting equipment and a refrigerator.

[0013] A further preferred embodiment includes a Boost charging circuit module, through which the elevator unit is unidirectionally connected to the energy storage battery and the bidirectional battery charging and discharging module.

[0014] A further preferred embodiment is that a voltage monitoring module is also provided between the Boost charging circuit module and the elevator integrated machine.

[0015] More preferably, the MPPT control module is an MPPT control module based on the BUCK charging circuit.

[0016] More preferably, the energy storage battery is one of lithium iron phosphate energy storage batteries, ternary lithium energy storage batteries, and sodium-ion energy storage batteries.

[0017] This application achieves the following beneficial effects:

[0018] 1. This application can switch between mains power, photovoltaic power or energy storage power in 10-20ms during a power outage, achieving a completely seamless power outage and preventing elevators from stopping due to power failure.

[0019] 2. This application can not only use mains power input, but also connect to photovoltaic accessories and convert the energy generated by elevator operation into electrical energy for recycling and reuse, which can greatly reduce the cost of electricity and has high application value compared with the existing technology.

[0020] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures shown in the description and the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the disclosure of this application and, together with the specification, serve to explain the principles of this disclosure.

[0022] Figure 1 This is a schematic diagram of the overall structure disclosed in this application;

[0023] In the diagram: 10. Photovoltaic panel; 20. Energy storage battery; 30. MPPT control module; 40. Bidirectional battery charging and discharging module; 50. Bidirectional inverter circuit module; 60. Energy management module; 70. Mains power module; 80. Elevator integrated machine; 90. Building emergency circuit module; 91. Lighting equipment; 92. Refrigerator; 100. Boost charging circuit module; 110. Voltage monitoring module. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0025] In the description of this application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the component or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Example

[0026] To address the problems existing in current elevator emergency power supplies, reference was made... Figure 1 As shown, this application discloses a photovoltaic energy storage and charging system for elevators, including a photovoltaic power generation panel 10, an energy storage battery 20, an MPPT control module 30, a bidirectional battery charging and discharging module 40, a bidirectional inverter circuit module 50, an energy management module 60, a mains power module 70, and an elevator integrated machine 80.

[0027] The bidirectional battery charging and discharging module 40 is bidirectionally connected to the bidirectional inverter circuit module 50, the bidirectional inverter circuit module 50 is bidirectionally connected to the energy management module 60, the mains power module 70 is bidirectionally connected to the energy management module 60, and both the mains power module 70 and the energy management module 60 are unidirectionally connected to the elevator integrated machine 80.

[0028] The photovoltaic panel is bidirectionally connected to the bidirectional battery charging and discharging module 40 via the MPPT control module 30; specifically, it should be noted that the MPPT control module 30 in this application is an MPPT control module 30 based on the BUCK charging circuit.

[0029] The energy storage battery 20 is bidirectionally connected to the MPPT control module 30 and the bidirectional battery charging and discharging module 40. Specifically, the energy storage battery 20 of this application is one of lithium iron phosphate energy storage battery, ternary lithium energy storage battery, and sodium-ion energy storage battery. Of course, the above three types of energy storage batteries are preferred options of this application. In specific implementation, other types of energy storage batteries 20 can also be selected according to the needs of use.

[0030] In addition to the above structure, this application also includes a building emergency circuit module 90 for supplying power to emergency electrical equipment in the building, a mains power module 70 and an energy management module 60 that are unidirectionally connected to the building emergency circuit module 90, and a Boost charging circuit module 100, wherein the elevator integrated machine 80 is unidirectionally connected to the energy storage battery 20 and the bidirectional battery charging and discharging module 40 through the Boost charging circuit module 100.

[0031] The general principle of the elevator photoelectric energy storage and charging system of this application is explained below:

[0032] (1) When the photovoltaic power generation panel 10 generates enough electricity, the electricity generated by the photovoltaic power generation panel 10 is first supplied to the elevator integrated machine 80 through the MPPT control module 30, the bidirectional battery charging and discharging module 40, the bidirectional inverter circuit module 50, and the energy management module 60. Secondly, the electricity generated by the photovoltaic power generation panel 10 is supplied to the energy storage battery 20 for storage. Finally, it is supplied to the building emergency circuit module 90 for use.

[0033] (2) When the photovoltaic power generation panel 10 generates insufficient power, the power generated by the photovoltaic power generation panel 10 is first supplied to the elevator integrated machine 80 through the MPPT control module 30, bidirectional battery charging and discharging module 40, bidirectional inverter circuit module 50, and energy management module 60. Secondly, the mains power module 70 or the energy storage battery 20 will supplement the power to the elevator integrated machine 80.

[0034] (3) When the photovoltaic power generation panel 10 does not generate electricity, the power output of the mains power module 70 is first supplied to the elevator integrated machine 80. Secondly, the mains power output is used to charge the energy storage battery 20 through the energy management module 60, the bidirectional inverter circuit module 50, and the bidirectional battery charging and discharging module 40.

[0035] (4) The electrical energy recovered by the Boost charging circuit module 100 is first used to charge the energy storage battery 20, and then supplied to the elevator integrated machine 80 through the bidirectional battery charging and discharging module 40, the bidirectional inverter circuit module 50, and the energy management module 60.

[0036] The power generation of the photovoltaic panel 10 mentioned above is obtained by the MPPT control module 30. This technology is conventional and will not be elaborated on here.

[0037] As an example, the emergency electrical equipment in this application includes lighting equipment 91 and refrigerator 92. In specific implementation, if other types of emergency electrical equipment also need to be connected to the building emergency circuit module 90, the operator can directly connect the emergency electrical equipment.

[0038] In addition to the above structure, this application also provides a voltage monitoring module 110 between the Boost charging circuit module 100 and the elevator integrated machine 80, so that the voltage of the elevator integrated machine 80 recovering electrical energy can be fed back in real time.

[0039] Based on the above embodiments, this application has the following advantages:

[0040] 1. This application can switch between mains power, photovoltaic power or energy storage power in 10-20ms during a power outage, so that the power outage is completely imperceptible and the elevator will not stop running.

[0041] 2. This application can not only use mains power input, but also connect to photovoltaic accessories and convert the energy generated by elevator operation into electrical energy for recycling and reuse, which can greatly reduce the cost of electricity and has high application value compared with the existing technology.

[0042] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The above embodiments are only for illustrating the technical concept and features of this application, and are intended to enable those skilled in the art to understand the content of this application and implement it accordingly. They should not be used to limit the scope of protection of this application. All equivalent changes or modifications made in accordance with the spirit and essence of this application should be included within the scope of protection of this application.

Claims

1. An optical-electric storage and charging system for an elevator, characterized by The photovoltaic panel (10), the energy storage battery (20), the MPPT control module (30), the bidirectional battery charging and discharging module (40), the bidirectional inverter circuit module (50), the energy management module (60), the mains module (70) and the elevator integrated machine (80) are included. The bidirectional battery charging and discharging module (40) and the bidirectional inverter circuit module (50) are bidirectionally connected, the bidirectional inverter circuit module (50) and the energy management module (60) are bidirectionally connected, the mains module (70) and the energy management module (60) are bidirectionally connected, and the mains module (70) and the energy management module (60) are unidirectionally connected with the elevator integrated machine (80). The photovoltaic panel is bidirectionally connected with the bidirectional battery charging and discharging module (40) through the MPPT control module (30). The energy storage battery (20) is bidirectionally connected with the MPPT control module (30) and the bidirectional battery charging and discharging module (40).

2. The photoelectric storage and charging system for elevator according to claim 1, characterized in that, The building emergency circuit module (90) for supplying power to emergency electrical equipment in the building is further included, and the mains module (70) and the energy management module (60) are unidirectionally connected with the building emergency circuit module (90).

3. The photoelectric storage and charging system for elevator according to claim 2, characterized in that, The emergency electrical equipment includes lighting equipment (91) and a refrigerator (92).

4. The photoelectric storage and charging system for elevator according to claim 1, characterized in that, The Boost charging circuit module (100) is further included, and the elevator integrated machine (80) is unidirectionally connected with the energy storage battery (20) and the bidirectional battery charging and discharging module (40) through the Boost charging circuit module (100).

5. The photoelectric storage and charging system for elevator according to claim 4, characterized in that, The voltage monitoring module (110) is further arranged between the Boost charging circuit module (100) and the elevator integrated machine (80).

6. The photoelectric storage and charging system for elevator according to claim 1, characterized in that, The MPPT control module (30) is a BUCK charging circuit-based MPPT control module (30).

7. The photoelectric storage and charging system for elevator according to claim 1, characterized in that, The energy storage battery (20) is one of a lithium iron phosphate energy storage battery, a ternary lithium energy storage battery and a sodium ion energy storage battery.

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