Energy storage type elevator energy-saving emergency system

Abstract

The utility model provides an energy storage type elevator energy-saving emergency system which comprises a cabinet body, an energy-saving unit and an emergency unit, the energy-saving unit and the emergency unit are arranged in the cabinet body, the energy-saving unit comprises a battery pack and a bidirectional DC / DC which are electrically connected with each other, the bidirectional DC / DC is electrically connected to an elevator control system, and the emergency unit comprises an inverter and a contactor which are electrically connected. The inverter is electrically connected between the bidirectional DC / DC and an elevator control system, an electric appliance bin and a battery bin are arranged in the cabinet body, the electric appliance bin is arranged at the upper end of the cabinet body, the battery bin is arranged at the lower end of the cabinet body, the bidirectional DC / DC, the inverter and the contactor are all arranged in the electric appliance bin, and the battery pack is installed in the battery bin. According to the energy storage type elevator energy-saving emergency system, the battery pack with the large weight is arranged in the battery bin at the lower end of the cabinet body, the electric appliance element with the small weight is arranged in the electric appliance bin at the upper end of the cabinet body, the gravity center of the energy storage type elevator energy-saving emergency system is low, and therefore the energy storage type elevator energy-saving emergency system is prevented from toppling over in the using process, and the using safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator energy saving, and specifically, to an energy storage type elevator energy saving emergency system. Background Art

[0002] The vast majority of elevators on the market are traction elevators, which are designed with a counterweight system. The weight of the car is between 40% and 50% of the counterweight. This means that when the elevator is lightly loaded and moving upward, the counterweight can pull the car upward, and the traction machine does not need to provide power, but resistance. The same is true for heavy loads moving downward. When the elevator is heavily loaded and moving upward, the car side is heavier than the counterweight, and the traction machine needs to provide power to pull the car upward, and the same is true for light loads moving downward.

[0003] The principle of the traction machine is similar to that of an electric motor. It can operate as both a motor and a generator. It provides power when operating as a motor and provides resistance when operating as a generator.

[0004] The traction machine is driven by the inverter. When the traction machine is running in the electric state, the DC bus voltage of the inverter will be lower than that in the standby state. At this time, the inverter will draw power from the mains through the rectifier bridge and supply it to the traction machine after inversion; when the traction machine is running in the power generation state, the bus voltage of the inverter will increase. When it increases to a certain level, the braking resistor is connected to consume the generated power in the form of heat. At present, most elevators on the market use braking resistors, which burn the generated energy in vain. No energy storage and energy feeding devices are used, resulting in energy waste.

[0005] Some elevators are equipped with ARD, which can realize automatic emergency response in case of power outage, but ARD generally uses lead-acid batteries (short life), and ARD batteries are charged with mains electricity, which consumes extra energy. Some elevators use four-quadrant inverters, which can transmit the generated energy back to the power grid, but if the generated energy cannot be consumed in the local area network at the same time, it will not generate economic value. In addition, the current ARD function is to provide automatic leveling, door opening and passenger release for a period of time, and it cannot realize the normal up and down use of the elevator. This is very inconvenient in some occasions, such as shopping malls, and there are great disadvantages. At the same time, after a power outage or abnormal mains electricity, some urgently needed electrical equipment in the home cannot obtain electricity, causing inconvenience in life. Utility Model Content

[0006] The utility model aims to provide an energy storage type elevator energy saving emergency system which is convenient to use and has high safety.

[0007] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0008] The utility model provides an energy storage type elevator energy saving emergency system, which is used for connecting with an elevator control system to store electric energy converted from elevator potential energy or outputting electric energy to the elevator control system in emergency use. The energy storage type elevator energy saving emergency system comprises a cabinet and an energy saving unit and an emergency unit both arranged in the cabinet, the energy saving unit comprises a battery pack and a bidirectional DC / DC electrically connected to each other, and the bidirectional DC / DC is electrically connected to the elevator control system, the emergency unit comprises an inverter and a contactor electrically connected, the inverter is electrically connected between the bidirectional DC / DC and the elevator control system, an electrical compartment and a battery compartment are arranged in the cabinet, the electrical compartment is arranged at the upper end of the cabinet, and the battery compartment is arranged at the lower end of the cabinet, the bidirectional DC / DC, the inverter and the contactor are all arranged in the electrical compartment, and the battery pack is installed in the battery compartment.

[0009] In one embodiment, a circuit board is provided in the electrical compartment, and the bidirectional DC / DC, inverter and contactor are all provided on the circuit board.

[0010] In one embodiment, the energy storage elevator energy-saving emergency system also includes a display screen, and a display screen bracket is provided in the electrical compartment. The display screen bracket extends in a direction away from the circuit board and bends downward to form a mounting portion. A nut column is provided on the side of the mounting portion facing away from the circuit board, and the display screen is mounted on the display screen bracket through the nut column.

[0011] In one of the embodiments, air holes are provided on the left and right sides of the cabinet corresponding to the electrical appliance compartment, an upper fan bracket and an upper cooling fan are provided in the electrical appliance compartment, the upper fan bracket is provided on one side of the left and right sides of the circuit board, the upper cooling fan is installed on the upper fan bracket and is used to take in air through the air holes on one side of the cabinet to blow the heat in the electrical appliance compartment to the outside of the cabinet through the air holes on the other side of the cabinet.

[0012] In one embodiment, the battery pack includes an upper battery pack and a lower battery pack; the battery compartment includes a bottom plate and a layer plate arranged at intervals, the layer plate is connected to the bottom plate through a support rod, the lower battery pack is arranged on the bottom plate, and the upper battery pack is arranged on the layer plate.

[0013] In one embodiment, the bottom plate is provided with bottom plate heat dissipation holes; a lower fan bracket is provided at the bottom of the layer plate, and the lower fan bracket is provided with multiple lower cooling fans arranged along the length direction of the battery pack, and the air outlet of the lower cooling fan faces the bottom plate heat dissipation holes.

[0014] In one embodiment, the battery compartment is also connected to a glass protection plate, which is connected to the layer plate and covers the battery pack.

[0015] In one embodiment, a partition is disposed transversely between the electrical compartment and the battery compartment.

[0016] In one embodiment, a socket-type incoming line port and an air circuit breaker are provided on the side of the cabinet, and the socket-type incoming line port and the air circuit breaker are arranged in the electrical compartment along the height direction of the cabinet.

[0017] In one embodiment, a height-increasing foot is fixed to the bottom end of the cabinet, and a detachable caster is provided at the bottom end of the height-increasing foot.

[0018] The technical solution provided by the utility model has the following beneficial effects: the energy storage elevator energy-saving emergency system can realize energy storage and energy saving and emergency use functions, and meet the use requirements of various occasions. In addition, by arranging the heavier battery pack in the battery compartment at the lower end of the cabinet, and the lighter electrical components (bidirectional DC / DC, inverter and contactor) in the electrical compartment at the upper end of the cabinet, the center of gravity of the energy storage elevator energy-saving emergency system is lower, thereby avoiding the energy storage elevator energy-saving emergency system from tipping over during use, and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention.

[0020] Figure 1 A circuit diagram of an energy storage elevator energy saving emergency system provided by an embodiment of the utility model;

[0021] Figure 2 A three-dimensional diagram of an energy storage elevator energy-saving emergency system provided by an embodiment of the utility model;

[0022] Figure 3 for Figure 2 The internal structure diagram of the energy storage elevator energy saving emergency system shown;

[0023] Figure 4 A schematic diagram of the internal structure of an energy storage elevator energy-saving emergency system provided in another embodiment of the utility model. DETAILED DESCRIPTION

[0024] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0025] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0026] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0027] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0028] The utility model relates to an energy storage type elevator energy saving emergency system, which is used to be connected with an elevator control system to store electric energy converted from the potential energy of the elevator, avoid electric energy waste, and realize the energy saving function; or output electric energy to the elevator control system in emergency use, provide electric energy for the electric equipment in the elevator system, ensure its normal operation, and realize the emergency use function.

[0029] See also Figures 1 to 4 The energy storage elevator energy saving emergency system 100 includes a cabinet 10 and an energy saving unit 20 and an emergency unit 30 both arranged in the cabinet 10 , and the emergency unit 30 is electrically connected between the energy saving unit 20 and the elevator control system 200 .

[0030] The energy-saving unit 20 includes a battery pack 21 and a bidirectional DC / DC 22 which are electrically connected to each other, and the bidirectional DC / DC 22 is electrically connected to the elevator control system 200, so that the electric energy converted from the elevator potential energy is converted into direct current through the bidirectional DC / DC 22 and stored in the battery pack 21.

[0031] The emergency unit 30 includes an electrically connected inverter and a contactor. The inverter is electrically connected between the bidirectional DC / DC 22 and the elevator control system 200, so that the power of the battery pack 21 can be inverted into AC power to power the electrical equipment of the elevator system, thereby realizing the emergency function.

[0032] The cabinet 10 is provided with an electrical compartment 13 and a battery compartment 14 along the upper and lower directions, respectively. The bidirectional DC / DC 22 , the inverter and the contactor are all arranged in the electrical compartment 13 , and the battery pack 21 is installed in the battery compartment 14 .

[0033] In the energy storage elevator energy saving emergency system 100 of the utility model, by arranging the heavier battery pack 21 in the battery compartment 14 at the lower end of the cabinet 10, and arranging the lighter electrical components (bidirectional DC / DC 22, inverter and contactor) in the electrical compartment 13 at the upper end of the cabinet 10, the center of gravity of the energy storage elevator energy saving emergency system 100 is lowered, thereby avoiding the energy storage elevator energy saving emergency system 100 from tipping over during use and improving the safety of use.

[0034] In one embodiment, the cabinet 10 includes a base 11 and an outer cover 12 covered on the base 11, and the outer cover 12 is detachably covered on the base 11 and together forms the electrical appliance compartment 13 and the battery compartment 14. The base 11 includes a bottom plate 141 and a back plate connected to the bottom plate 141, and the outer cover 12 includes a pair of opposite side plates and a front panel connected to one side of the pair of side plates.

[0035] In one embodiment, a circuit board 40 is provided in the electrical compartment 13 and is fixed to the back plate by means of nut columns. The bidirectional DC / DC 22, inverter and contactor are all arranged on the circuit board 40, thereby realizing the integration of multiple electrical components and facilitating the assembly of the energy storage elevator energy-saving emergency system 100.

[0036] In one embodiment, the energy storage elevator energy saving emergency system 100 further includes a display screen 50, and a display screen bracket 51 is provided in the electrical compartment 13, and the display screen bracket 51 extends in a direction away from the circuit board 40 (i.e., away from the back plate) and is bent downward to form a mounting portion, and a nut column is provided on the side of the mounting portion facing away from the circuit board 40, and the display screen 50 is mounted on the display screen bracket 51 through the nut column. In addition, the display screen 50 is embedded in a preset mounting hole on the front panel of the outer cover 12, so as to facilitate obtaining the working status of the energy storage elevator energy saving emergency system 100 through the display screen 50 and performing control operations through the display screen 50.

[0037] In one embodiment, the side panels on the left and right sides of the cabinet 10 are provided with air holes 121 corresponding to the electrical appliance compartment 13, and an upper fan bracket 82 and an upper cooling fan are provided in the electrical appliance compartment 13. The upper fan bracket 82 is arranged on one side of the left and right sides of the circuit board 40. The upper cooling fan is installed on the upper fan bracket 82 and is used to suck air through the air holes 121 on one side of the cabinet 10 to blow the heat in the electrical appliance compartment 13 to the outside of the cabinet 10 through the air holes 121 on the other side of the cabinet 10, thereby cooling the devices on the circuit board 40 to ensure their normal operation.

[0038] In one embodiment, the battery pack 21 includes an upper battery pack 211 and a lower battery pack 212; the battery compartment 14 includes a bottom plate 141 and a layer plate 142 that are spaced apart, the layer plate 142 is connected to the bottom plate 141 via a support rod 143, the lower battery pack 212 is disposed on the bottom plate 141, and the upper battery pack 211 is disposed on the layer plate 142.

[0039] Among them, each battery pack 21 is installed in the battery compartment 14 through a battery mounting rack, and the battery mounting rack includes a mounting plate and a support plate erected on the mounting plate. The support plate is provided with multiple battery pack 21 mounting positions, and each battery pack 21 mounting position can be installed with one battery pack 21, so that the multiple battery packs 21 are integrated into a whole, which is convenient for the assembly of the battery packs 21 in the battery compartment 14.

[0040] In one embodiment, the bottom plate 141 is provided with bottom plate heat dissipation holes 1411, and the side plate is also provided with air holes 121 at positions corresponding to the battery compartment 14. A lower fan bracket 81 is provided at the bottom of the layer plate 142, and the lower fan bracket 81 is arranged with a plurality of lower heat dissipation fans along the length direction of the battery pack 21, and the air outlets of the lower heat dissipation fans face the bottom plate heat dissipation holes 1411, so that air can be taken in through the air holes 121 on the side plate and the heat in the battery compartment 14 can be blown out from the bottom plate heat dissipation holes 1411, so as to cool down the battery pack 21 in time, ensure the working state of the battery pack 21, and avoid various problems caused by the battery pack 21 being overheated.

[0041] In one embodiment, the battery compartment 14 is further connected to a glass protection plate, which is connected to the layer plate 142 and extends upward to cover the upper battery pack 211 and extends downward to cover the lower battery pack 212 to improve safety performance. Preferably, the glass protection plate is an organic glass plate 144.

[0042] In one embodiment, a partition 15 is horizontally provided between the electrical compartment 13 and the battery compartment 14 to physically divide the internal space of the cabinet 10 and to differentiate and protect the functional areas, which is more conducive to equipment maintenance and improves safety performance.

[0043] In one embodiment, a socket-type incoming line port 70 and an air circuit breaker 60 are provided on the side of the cabinet 10. The socket-type incoming line port 70 and the air circuit breaker 60 are arranged in the electrical compartment 13 along the height direction of the cabinet 10 to facilitate wiring and operation.

[0044] In one embodiment, a heightening foot 91 is fixed to the bottom of the cabinet 10 . By providing the heightening foot 91 , a gap is created between the bottom plate 141 of the cabinet 10 and the ground, thereby facilitating heat dissipation from the battery compartment 14 and ensuring a cooling effect on the battery pack 21 .

[0045] The bottom end of the height-increasing support foot 91 is provided with a detachable caster 92, through which the energy storage elevator energy-saving emergency system 100 can be easily moved. After it is moved to the installation position, the caster 92 can be detached and recovered.

[0046] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0047] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. An energy storage type elevator energy saving emergency system, used to connect with an elevator control system to store electric energy converted from elevator potential energy or output electric energy to the elevator control system in emergency use, the energy storage type elevator energy saving emergency system comprises a cabinet and an energy saving unit and an emergency unit both arranged in the cabinet, the energy saving unit comprises a battery pack and a bidirectional DC / DC electrically connected to each other, and the bidirectional DC / DC is electrically connected to the elevator control system, the emergency unit comprises an inverter and a contactor electrically connected, the inverter is electrically connected between the bidirectional DC / DC and the elevator control system, characterized in that, An electrical compartment and a battery compartment are provided in the cabinet, wherein the electrical compartment is arranged at the upper end of the cabinet and the battery compartment is arranged at the lower end of the cabinet, the bidirectional DC / DC, inverter and contactor are all arranged in the electrical compartment, and the battery pack is installed in the battery compartment.

2. The energy storage elevator energy saving emergency system according to claim 1 is characterized in that: A circuit board is arranged in the electrical compartment, and the bidirectional DC / DC, inverter and contactor are all arranged on the circuit board.

3. The energy storage elevator energy saving emergency system according to claim 2 is characterized in that: It also includes a display screen, a display screen bracket is provided in the electrical compartment, the display screen bracket extends in a direction away from the circuit board and bends downward to form a mounting portion, a nut column is provided on the side of the mounting portion facing away from the circuit board, and the display screen is mounted on the display screen bracket through the nut column.

4. The energy storage elevator energy saving emergency system according to claim 2, characterized in that: Air holes are provided on the left and right sides of the cabinet corresponding to the electrical appliance compartment. An upper fan bracket and an upper cooling fan are provided in the electrical appliance compartment. The upper fan bracket is arranged on one side of the left and right sides of the circuit board. The upper cooling fan is installed on the upper fan bracket and is used to take in air through the air holes on one side of the cabinet to blow the heat in the electrical appliance compartment to the outside of the cabinet through the air holes on the other side of the cabinet.

5. The energy storage elevator energy saving emergency system according to claim 1, characterized in that: The battery pack includes an upper battery pack and a lower battery pack; The battery compartment comprises a bottom plate and a layer plate which are arranged at intervals, wherein the layer plate is connected to the bottom plate via a support rod, the lower battery pack is arranged on the bottom plate, and the upper battery pack is arranged on the layer plate.

6. The energy storage elevator energy saving emergency system according to claim 5, characterized in that: The bottom plate is provided with bottom plate heat dissipation holes; A lower fan bracket is provided at the bottom of the layer plate, and a plurality of lower cooling fans are arranged on the lower fan bracket along the length direction of the battery pack, and the air outlets of the lower cooling fans face the cooling holes of the bottom plate.

7. The energy storage elevator energy saving emergency system according to claim 5, characterized in that: The battery compartment is also connected to a glass protection plate, which is connected to the layer plate and covers the battery pack.

8. The energy storage elevator energy saving emergency system according to claim 1, characterized in that: A partition is arranged horizontally between the electrical compartment and the battery compartment.

9. The energy storage elevator energy saving emergency system according to claim 1, characterized in that: The side of the cabinet is provided with a socket-type incoming line port and an air circuit breaker, and the socket-type incoming line port and the air circuit breaker are arranged in the electrical appliance compartment along the height direction of the cabinet.

10. The energy storage elevator energy saving emergency system according to claim 1, characterized in that: A heightening foot is fixed to the bottom end of the cabinet body, and a detachable caster is provided at the bottom end of the heightening foot.

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