Energy-saving and energy-storing device for elevator

Abstract

The utility model provides an elevator energy -conserving energy storage device, it can effectively realize elevator's electric power energy saving, avoid energy waste and reduce elevator's operation cost, including the box, be provided with the two -way DCDC converter, super capacitor module that connect with each other in the box, be equipped with HMI touch -control display screen, circuit breaker on the box, HMI touch -control display screen with two -way DCDC converter, super capacitor module all are connected, the box inside both sides are equipped with the support, and the support between both sides is detachably connected with the layer board, to divide the box internal space into two warehouses, two the warehouse is divided into first warehouse, second warehouse, super capacitor module is assembled in second warehouse, two -way DCDC converter is assembled on the layer board, two -way DCDC converter is connected with elevator direct current bus after being connected with circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of elevator energy-saving technology, specifically to an elevator energy-saving energy storage device. Background Technology

[0002] With the acceleration of urbanization and the increasing number of high-rise buildings, the energy consumption of elevators, as an important vertical transportation tool, has attracted widespread attention. According to the operating principle of elevators, when the elevator car descends empty or lightly loaded, the counterweight drives the car, thus generating electricity. When the number of passengers reaches about half of the rated counterweight, the combined action of the passengers and the car drives the counterweight, also generating electricity. The electrical energy generated during this process needs to be processed promptly, otherwise it will cause serious damage to the motor.

[0003] Currently, in order to avoid the electrical energy generated by the motor in the generator state affecting the motor's performance, most elevators on the market use braking resistors for energy-consuming braking, so as to burn the generated energy of the elevator. This not only wastes electrical energy, but also requires the addition of an expensive heat exchange or heat dissipation device to the elevator-related equipment to ensure that the temperature in the machine room is maintained below a certain threshold, which increases the operating cost of the elevator. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an elevator energy-saving storage device, which can effectively achieve energy conservation in elevators, avoid energy waste, and reduce elevator operating costs.

[0005] This utility model adopts the following technical solution: an elevator energy-saving energy storage device, including a housing, in which a bidirectional DC / DC converter and a supercapacitor module are installed and interconnected. An HMI touch screen and a circuit breaker are mounted on the housing. The HMI touch screen is connected to both the bidirectional DC / DC converter and the supercapacitor module. Supports are mounted on both sides of the housing, and shelves are detachably connected between the supports on both sides to divide the internal space of the housing into two compartments, namely a first compartment and a second compartment. The supercapacitor module is installed in the second compartment, and the bidirectional DC / DC converter is installed on the shelf. The bidirectional DC / DC converter is connected to the elevator DC bus after being connected to the circuit breaker.

[0006] Furthermore, a cooling fan is installed on the side panel of the box located in the second compartment to blow the heat inside the box to the outside of the box; the supercapacitor module is connected to the cooling fan, and the supercapacitor module is assembled in the second compartment through a capacitor bracket, and the supercapacitor module is composed of multiple supercapacitor cells connected in series; Furthermore, several heat dissipation holes are provided on the side panels of the box body located in the first compartment and the second compartment, and handles are installed on the outer side panels of the box body; rubber pads are provided at the bottom of the box body; Furthermore, the outer side of the enclosure is equipped with a power interface and a voltage interface, wherein the power interface is a three-hole interface and the voltage interface is a two-hole interface; Furthermore, the bidirectional DC / DC converter is connected to the circuit breaker, and the circuit breaker is connected to the elevator DC bus via the voltage interface after connecting the capacitive reactance XC; the bidirectional DC / DC converter is connected to the mains power via the power interface after connecting the capacitive reactance XC. Furthermore, the enclosure has an installation opening, and a cover is rotatably connected to the outside of the enclosure at the installation opening. The circuit breaker is assembled inside the enclosure at the corresponding installation opening position via a support frame.

[0007] The beneficial effects of this utility model are that the box is equipped with a bidirectional DC / DC converter and a supercapacitor module that are interconnected. The bidirectional DC / DC converter is connected to the elevator DC bus after being connected to the circuit breaker. Through the combined use of the bidirectional DC / DC converter and the supercapacitor module, the potential energy generated by the elevator in the power generation state can be converted into electrical energy and stored in the supercapacitor module through the elevator DC bus. This achieves energy saving in the elevator, not only avoiding energy waste but also reducing the operating cost of the elevator, and has good economic value. Attached Figure Description

[0008] Figure 1 This is a structural diagram of the concealed box portion of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is the circuit schematic diagram of this utility model; Figure 4 This is a connection diagram of this utility model. Detailed Implementation

[0009] like Figures 1-4As shown, this utility model discloses an elevator energy-saving energy storage device, including a housing 1. Inside the housing 1, a bidirectional DC / DC converter 2 and a supercapacitor module 3 are installed and interconnected. An HMI touch screen display 4 and a circuit breaker 5 are mounted on the housing 1. The HMI touch screen display 4 is connected to both the bidirectional DC / DC converter 2 and the supercapacitor module 3. Supports 6 are installed on both sides of the housing 1. Shelves 7 are detachably connected between the supports 6 on both sides to divide the internal space of the housing 1 into two compartments, namely a first compartment 8 and a second compartment 9. The supercapacitor module 3 is installed in the second compartment 9. The bidirectional DC / DC converter 2 is installed on the shelf 7. The bidirectional DC / DC converter 2 is connected to the elevator DC bus after being connected to the circuit breaker 5.

[0010] A cooling fan 10 is installed on the side panel of the box 1 located in the second compartment 9 to blow the heat inside the box 1 to the outside of the box 1; the supercapacitor module 3 is connected to the cooling fan 10, and the supercapacitor module 3 is assembled in the second compartment 9 through the capacitor bracket 11. The supercapacitor module 3 is composed of multiple supercapacitor cells connected in series.

[0011] Several ventilation holes 12 are provided on the side panels of the box 1 located in the first compartment 8 and the second compartment 9. Handles 13 are installed on the outer side panels of the box 1. Rubber pads 18 are provided at the bottom of the box 1.

[0012] The outer side of the enclosure 1 is equipped with a power interface 14 and a voltage interface 15. The power interface 14 is a three-hole interface, and the voltage interface 15 is a two-hole interface. The bidirectional DC / DC converter 2 is connected to the circuit breaker 5. The circuit breaker 5 is connected to the elevator DC bus through the voltage interface 15 after connecting the capacitive reactance XC. The bidirectional DC / DC converter 2 is connected to the mains power through the power interface 14 after connecting the capacitive reactance XC.

[0013] The enclosure 1 has an installation port (not shown in the figure). A cover 16 is rotatably connected to the outside of the enclosure 1 at the installation port. The circuit breaker 5 is assembled inside the enclosure 1 at the corresponding installation port position via a support frame 17.

[0014] The elevator energy-saving storage device of this utility model is connected to the elevator control system and is used to store the electrical energy converted from the elevator's potential energy or to output electrical energy to the elevator control system (not shown in the figure) during operation. Specifically, it is used in conjunction with a bidirectional DC / DC converter 2 and a supercapacitor module 3 to convert the potential energy generated during the elevator's light-load upward movement and heavy-load downward movement into electrical energy, which is stored in the supercapacitor module 3 through the elevator's DC bus. The supercapacitor module 3 provides the stored electrical energy when the elevator uses electricity again, thereby realizing energy saving for the elevator.

[0015] In the diagram, L represents the live wire, N represents the neutral wire, and PE represents the ground wire. VVF+ indicates the positive terminal of the elevator DC bus; VVF- indicates the negative terminal of the elevator DC bus; DF indicates the circuit breaker; The HMI touch display 4 is connected to the bidirectional DC / DC converter 2 and the supercapacitor module 3 via RS485 communication.

[0016] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0017] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Images