Elevator

Abstract

The invention provides an elevator which comprises a lifting device used for lifting a heavy object; the power device comprises a motor and a kinetic energy recovery structure, and the motor is in driving connection with the lifting device to drive the lifting device to lift the heavy object; the kinetic energy recovery structure is connected with the motor, so that when the motor drives the lifting device to lower a heavy object, the mechanical energy is converted into electric energy and stored in the kinetic energy recovery structure; wherein the kinetic energy recovery structure comprises an electric coil, a magnet and an energy storage unit, and a rotating shaft of the motor is rotatably arranged and connected with the electric coil, so that when a heavy object is put down, the electric coil moves relative to the magnet to generate induction current; the energy storage unit is connected with the electric coil to receive and store electric energy. According to the elevator, the problem that in the prior art, the system energy loss of an elevator is large is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a hoist. Background Art

[0002] Material handling and lifting are crucial tasks in industrial production. Traditional lifting equipment often utilizes fixed pulley systems. While simple in structure, these systems suffer from low lifting efficiency and demand a high power source, resulting in high energy consumption and environmental impact. With energy issues becoming increasingly prominent in recent years, the development of low-power, environmentally friendly lifting equipment has become an urgent need. By varying the direction and magnitude of force applied, movable pulley systems can effectively improve lifting efficiency and reduce power consumption.

[0003] However, the current movable pulley lifting equipment still has shortcomings in energy saving, such as low energy conversion efficiency and large system losses, which limit its promotion in practical applications. Summary of the Invention

[0004] The main purpose of the present invention is to provide a hoist to solve the problem of large system energy loss of the hoist in the prior art.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a hoist, comprising: a lifting device for lifting heavy objects; a power device, comprising an electric motor and a kinetic energy recovery structure, the electric motor is connected to the lifting device to drive the lifting device to lift the heavy object; the kinetic energy recovery structure is connected to the electric motor, so that when the electric motor drives the lifting device to lower the heavy object, the mechanical energy is converted into electrical energy and stored in the kinetic energy recovery structure; wherein the kinetic energy recovery structure includes an electric coil, a magnet and an energy storage unit, the rotating shaft of the electric motor is rotatably arranged and connected to the electric coil, so that when the heavy object is lowered, the electric coil moves relative to the magnet to generate an induced current; the energy storage unit is connected to the electric coil to receive and store electrical energy.

[0006] Furthermore, the energy storage unit is a supercapacitor or a battery.

[0007] Furthermore, the power device also includes a reducer, and the electric motor is drivingly connected to the lifting device through the reducer.

[0008] Furthermore, the reducer is a planetary gear reducer.

[0009] Furthermore, the power device also includes an overload protector, which is connected to the electric motor.

[0010] Furthermore, the hoist also includes a frame and a load-bearing part, the lifting device includes a movable pulley assembly, a fixed pulley assembly, a drum and a lifting rope, the frame is used to be installed on a fixed foundation, the load-bearing part is used to place heavy objects, the movable pulley assembly is arranged on the load-bearing part, the fixed pulley assembly is arranged on the frame, one end of the lifting rope is connected to the frame, the lifting rope is wound around the movable pulley assembly and the fixed pulley assembly, the other end of the lifting rope is connected to the drum and the lifting rope is wound around the drum, the motor is connected to the drum to drive the drum to rotate so that the lifting rope lifts the load-bearing part.

[0011] Furthermore, the movable pulley assembly includes multiple movable pulleys, which are arranged at intervals on the bearing part; the fixed pulley assembly includes multiple fixed pulleys, which are arranged at intervals on the frame, and the lifting ropes are sequentially wound around the multiple movable pulleys and the multiple fixed pulleys.

[0012] Furthermore, the hoist also includes a control module, which is communicatively connected to the power unit; the lifting device includes a lifting rope for lifting heavy objects; the hoist also includes: a first sensor for detecting the lifting speed of the lifting rope, the first sensor is communicatively connected to the control module, so as to send the detected lifting speed to the control module, so that the control module adjusts the operating state of the power unit according to the lifting speed; and / or, a second sensor for detecting the tension of the lifting rope, the second sensor is communicatively connected to the control module, so as to send the detected tension to the control module, so that the control module adjusts the operating state of the power unit according to the tension.

[0013] Furthermore, the elevator also includes a control module, a monitoring module and a display module. The monitoring module and the display module are both communicatively connected to the control module. The monitoring module is used to monitor the energy consumption of the elevator, and the energy consumption of the elevator monitored by the monitoring module is displayed on the display module through the control module.

[0014] Furthermore, the monitoring module includes a current sensor, a voltage sensor and a data processing module, and the current sensor and the voltage sensor are respectively communicated with the data processing module; the current sensor is used to obtain the current in the circuit of the elevator and send the current data to the data processing module, and the voltage sensor is used to obtain the voltage in the circuit of the elevator and send the voltage data to the data processing module; the data processing module is communicated with the control module, and the data processing module confirms the energy consumption of the elevator based on the current data and voltage data and sends the energy consumption of the elevator to the control module.

[0015] Applying the technical solution of the present invention, the elevator includes a lifting device and a power device. The power device includes an electric motor and a kinetic energy recovery structure. The electric motor drives the lifting device to lift heavy objects. The kinetic energy recovery structure is used to convert the mechanical energy generated by the lifting device in the process of lowering heavy objects into electrical energy and store it for use in subsequent lifting processes, thereby improving the overall energy efficiency of the elevator and solving the problem of large system energy loss of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 A schematic diagram showing an embodiment of a hoist according to the present invention is shown;

[0018] Figure 2 A schematic diagram showing an electric coil and magnets of a hoist according to the present invention;

[0019] Figure 3 The following is a flowchart showing the operation of an embodiment of a hoist according to the present invention.

[0020] The above drawings include the following reference numerals:

[0021] 10. Electric motor;

[0022] 21. Electric coil; 22. Magnet; 23. Energy storage unit;

[0023] 30. Framework;

[0024] 40. bearing part;

[0025] 50. Movable pulley assembly; 51. Movable pulley;

[0026] 60. Fixed pulley assembly; 61. Fixed pulley;

[0027] 70. Reel;

[0028] 80. Lifting rope;

[0029] 90. Touch screen;

[0030] 100. First sensor. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] The present invention provides a hoist, please refer to Figure 1 and Figure 2 , including: a lifting device for lifting heavy objects; a power device, including an electric motor 10 and a kinetic energy recovery structure, the electric motor 10 is connected to the lifting device to drive the lifting device to lift the heavy object; the kinetic energy recovery structure is connected to the electric motor 10, so that when the electric motor 10 drives the lifting device to lower the heavy object, the mechanical energy is converted into electrical energy and stored in the kinetic energy recovery structure.

[0035] The elevator of the present invention includes a lifting device and a power device. The power device includes an electric motor 10 and a kinetic energy recovery structure. The electric motor 10 drives the lifting device to lift heavy objects. The kinetic energy recovery structure is used to convert the mechanical energy generated by the lifting device in the process of lowering heavy objects into electrical energy and store it for use in subsequent lifting processes, thereby improving the overall energy efficiency of the elevator and solving the problem of large system energy loss of the elevator.

[0036] In this embodiment, if Figure 2 As shown, the kinetic energy recovery structure includes an electric coil 21, a magnet 22 and an energy storage unit 23. The rotating shaft of the motor 10 is rotatably arranged and connected to the electric coil 21, so that when the heavy object is lowered, the electric coil 21 moves relative to the magnet 22 to generate an induced current; the energy storage unit 23 is connected to the electric coil 21 to receive and store electrical energy.

[0037] In practice, the shaft of motor 10 is connected to coil 21, which rotates relative to a fixed magnet 22. During the lowering process, the shaft drives coil 21 to rotate relative to magnet 22, generating an induced current. This current, after passing through a rectifier and voltage regulator circuit, is fed into the energy storage unit, which then supplies power for the subsequent lifting process. This allows for energy recovery and reuse, improving the system's energy efficiency.

[0038] Optionally, the energy storage unit 23 is a supercapacitor or a battery, wherein the battery can be a lithium-ion battery. A kinetic energy recovery mechanism is introduced to convert the mechanical energy generated by the rotation of the hoist drum 70 during the lowering process into electrical energy for reuse. When the hoist lowers the load, the mechanical energy is converted into electrical energy using the principle of electromagnetic induction and stored in the supercapacitor or battery for subsequent use during the lifting process. Furthermore, supercapacitors offer fast charging and discharging, high power output, and a long cycle life; lithium-ion batteries have high energy density, stable power supply, and a long battery life.

[0039] In this embodiment, the power device further includes a reducer, and the electric motor 10 is drivingly connected to the lifting device via the reducer.

[0040] During specific implementation, the motor 10 is connected to the drum 70 through a speed reducer to drive the drum 70 to rotate forward or reverse, thereby retracting and releasing the lifting rope 80 to achieve the up and down movement of the bearing portion 40.

[0041] Optionally, the reducer is a planetary gear reducer. Planetary gear reducers offer high efficiency, high precision, and low noise, effectively transmitting power while minimizing energy loss. By optimizing gear design and material selection, transmission efficiency can be further improved, energy loss can be reduced, and overall performance can be enhanced.

[0042] In this embodiment, the power device further includes an overload protector, which is connected to the motor 10 .

[0043] In specific implementation, the overload protector is connected to the motor 10. If an overload state is detected during the lifting process (for example, the load tension exceeds the set threshold), the power supply will be cut off or an alarm signal will be output to prevent equipment damage due to overload operation, thereby ensuring the safe operation of the lifting system.

[0044] In this embodiment, the hoist further includes a frame 30 and a load-bearing portion 40, and the lifting device includes a movable pulley assembly 50, a fixed pulley assembly 60, a drum 70, and a lifting rope 80. The frame 30 is used to be installed on a fixed foundation, the load-bearing portion 40 is used to place heavy objects, the movable pulley assembly 50 is arranged on the load-bearing portion 40, the fixed pulley assembly 60 is arranged on the frame 30, one end of the lifting rope 80 is connected to the frame 30, the lifting rope 80 is wound around the movable pulley assembly 50 and the fixed pulley assembly 60, the other end of the lifting rope 80 is connected to the drum 70, and the lifting rope 80 is wound around the drum 70. The motor 10 is connected to the drum 70 to drive the drum 70 to rotate, so that the lifting rope 80 lifts the load-bearing portion 40. In specific implementation, the combination of the movable pulley assembly 50 and the fixed pulley assembly 60 improves the system load capacity and reduces the power consumption of the motor.

[0045] In this embodiment, the movable pulley assembly 50 includes a plurality of movable pulleys 51, which are arranged at intervals on the load-bearing portion 40; the fixed pulley assembly 60 includes a plurality of fixed pulleys 61, which are arranged at intervals on the frame 30, and the lifting rope 80 is wound around the plurality of movable pulleys 51 and the plurality of fixed pulleys 61 in sequence.

[0046] During specific implementation, one end of the lifting rope 80 is connected to the fixed frame 30, and the other end is wound around the drum 70; in the middle, it passes through multiple movable pulleys 51 and multiple fixed pulleys 61 in sequence to form a mechanical amplification and tension balance structure.

[0047] In a specific implementation, the movable pulley assembly 50 is disposed on the bearing portion 40 , and the fixed pulley assembly 60 is disposed on the frame 30 mounted on a fixed foundation, so as to facilitate stable guidance of the heavy object in the lifting path.

[0048] Optionally, the movable pulley assembly 50 includes three movable pulleys 51, each movable pulley 51 is mounted on a bracket of the bearing portion 40 through a bearing and moves up and down with the bearing portion 40. The movable pulley is made of high-strength aluminum alloy and has a diameter of 100 mm.

[0049] Optionally, the fixed pulley assembly 60 includes three fixed pulleys 61, which are fixed to the top of the frame 30 via a mounting seat. The fixed pulleys are also made of high-strength aluminum alloy with a diameter of 100 mm.

[0050] Optionally, the lifting rope 80 is made of a high-strength steel wire rope with a diameter of 12 mm. The surface treatment of the lifting rope 80 is a polytetrafluoroethylene (PTFE) coating to reduce friction.

[0051] In specific implementation, the motor 10 adopts a high-efficiency motor, which is connected to the lifting rope 80 through a speed reducer. Since there are three movable pulleys 51, the power of the high-efficiency motor is 3kW according to P=Fv / 3, which can meet the requirement of lifting a heavy object with a weight of 1000kg.

[0052] Optionally, frame 30 is made of high-strength steel, offering excellent rigidity and stability. Anchor bolts are provided at the bottom of frame 30 for mounting on a fixed foundation to secure the hoist. Mounting blocks for fixed pulley 61 are provided at the top of frame 30 to secure the fixed pulley 61. Frame 30 is surface-treated with an epoxy resin coating to extend its service life.

[0053] Optionally, the bearing portion 40 is a roller line, which is convenient for placing heavy objects; and a positioning portion is provided on the roller line to prevent the heavy objects from being displaced or falling during the lifting process.

[0054] In this embodiment, the hoist further includes a control module, which is communicatively connected to the power unit; the hoist includes a hoist rope 80 for lifting a heavy object; the hoist further includes: a first sensor 100 for detecting the lifting speed of the hoist rope 80, the first sensor 100 being communicatively connected to the control module to transmit the detected lifting speed to the control module so that the control module adjusts the operating state of the power unit according to the lifting speed; and / or a second sensor for detecting the tension of the hoist rope 80, the second sensor being communicatively connected to the control module to transmit the detected tension to the control module so that the control module adjusts the operating state of the power unit according to the tension. In this way, the closed-loop control formed by the sensor and the control module improves the operational safety and stability of the system.

[0055] Optionally, the control module is a PLC; the first sensor 100 is an encoder or a laser velocimeter for detecting the lifting speed of the lifting rope 80; the second sensor is a tension sensor or a strain gauge tension meter for detecting the tension of the lifting rope 80.

[0056] In this embodiment, the elevator also includes a control module, a monitoring module and a display module. The monitoring module and the display module are both communicatively connected to the control module. The monitoring module is used to monitor the energy consumption of the elevator, and the energy consumption of the elevator monitored by the monitoring module is displayed on the display module through the control module.

[0057] Optionally, the display module is an LED or LCD display screen for displaying operating status, energy consumption data, etc. in real time.

[0058] In this embodiment, the monitoring module includes a current sensor, a voltage sensor and a data processing module, and the current sensor and the voltage sensor are respectively communicated with the data processing module; the current sensor is used to obtain the current in the circuit of the hoist and send the current data to the data processing module, and the voltage sensor is used to obtain the voltage in the circuit of the hoist and send the voltage data to the data processing module; the data processing module is communicated with the control module, and the data processing module confirms the energy consumption of the hoist based on the current data and voltage data and sends the energy consumption of the hoist to the control module.

[0059] In specific implementation, the data processing module calculates power based on current and voltage data, and then calculates energy consumption based on power and operating time to obtain reliable results.

[0060] Optionally, the current sensor is a Hall effect sensor or a transformer; the voltage sensor may be a voltage transformer.

[0061] In this embodiment, the elevator also includes a control module, and the elevator also includes: a touch screen 90, which is communicated with the control module to control the operation of the elevator by touching the touch screen 90; and / or, a button, which is communicated with the control module to control the operation of the elevator by pressing the button; and / or, a fault diagnosis module and an alarm module, both of which are communicated with the control module, and the fault diagnosis module is used to diagnose the fault of the elevator and send a fault signal to the control module, so that the control module controls the alarm module to alarm according to the fault signal.

[0062] In specific implementation, the touch screen 90 and buttons allow the operator to manually adjust the operating parameters; the fault diagnosis module and the alarm module are used to identify abnormalities (such as motor temperature rise, load abnormality, communication interruption, etc.) and issue sound and light alarms.

[0063] In specific implementation, the control module integrates touch interaction, fault alarm and energy consumption monitoring, and is highly intelligent and operational.

[0064] In specific implementation, the hoist utilizes a PLC (Programmable Logic Controller) that uses a first sensor and a second sensor to detect parameters such as the hoisting speed and tension of the hoist rope, adjusting the operating status of the low-power power unit in real time. The hoist is also equipped with a touch screen 90 or buttons for the operator to manually control the hoist's operation. The hoist also features fault diagnosis and alarm functions, providing timely alerts when abnormalities occur. The hoist also has an energy consumption monitoring function that displays real-time energy consumption data, helping the operator optimize the hoisting process and further reduce energy consumption.

[0065] When implementing it specifically, Figure 3 As shown, the operation control of the hoist includes: step S100, using the first sensor 100 to detect the lifting speed of the lifting rope 80; step S200, using the second sensor to detect the tension of the lifting rope 80; step S300, adjusting the operating state of the power device according to the lifting speed and tension; step S400, using the current sensor and the voltage sensor to obtain the current and voltage; step S500, the data processing module confirms the energy consumption of the hoist based on the current data and the voltage data and sends the energy consumption of the hoist to the control module for display on the display module.

[0066] The hoist of the present invention adopts a high-efficiency motor (i.e., an electric motor) and a lifting device, optimizes the mechanical transmission structure design, and introduces kinetic energy recovery technology. When the motor decelerates, the motor is converted into a generator mode, and the potential energy is converted into electrical energy using the principle of electromagnetic induction, thereby improving the overall energy efficiency.

[0067] The beneficial effects of the hoist of the present invention are: by improving energy efficiency and reducing motor power, the overall operating cost is significantly reduced; the high-efficiency and energy-saving hoist reduces energy consumption and recovers energy, thereby reducing carbon emissions and benefiting environmental protection.

[0068] The hoist provided by the present invention achieves high lifting efficiency, ease of operation, good stability, low maintenance costs, low power consumption, and environmental friendliness through optimized structural designs of the movable pulley assembly, fixed pulley assembly, hoist rope, low-power power device, overload protector, frame, and control module. The hoist is suitable for material handling and lifting operations in various industrial settings and has broad application prospects.

[0069] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0070] The elevator of the present invention includes a lifting device and a power device. The power device includes an electric motor 10 and a kinetic energy recovery structure. The electric motor 10 drives the lifting device to lift heavy objects. The kinetic energy recovery structure is used to convert the mechanical energy generated by the lifting device in the process of lowering heavy objects into electrical energy and store it for use in subsequent lifting processes, thereby improving the overall energy efficiency of the elevator and solving the problem of large system energy loss of the elevator.

[0071] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof 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 necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0072] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0073] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A hoist, characterized in that: include: Lifting device, used to lift heavy objects; The power device comprises an electric motor (10) and a kinetic energy recovery structure, wherein the electric motor (10) is connected to the lifting device in a driving manner to drive the lifting device to lift a heavy object; the kinetic energy recovery structure is connected to the electric motor (10) so that when the electric motor (10) drives the lifting device to lower the heavy object, mechanical energy is converted into electrical energy and stored in the kinetic energy recovery structure; The kinetic energy recovery structure includes an electric coil (21), a magnet (22) and an energy storage unit (23); the rotating shaft of the motor (10) is rotatably arranged and connected to the electric coil (21), so that when the heavy object is lowered, the electric coil (21) moves relative to the magnet (22) to generate an induced current; and the energy storage unit (23) is connected to the electric coil (21) to receive and store electric energy.

2. The elevator according to claim 1, characterized in that The energy storage unit (23) is a supercapacitor or a battery.

3. The elevator according to claim 1, characterized in that The power device further comprises a reducer, and the electric motor (10) is drivingly connected to the lifting device via the reducer.

4. The hoist according to claim 3, characterized in that The reducer is a planetary gear reducer.

5. The elevator according to claim 1, characterized in that The power device further comprises an overload protector, which is connected to the electric motor (10).

6. The elevator according to claim 1, characterized in that The hoist also includes a frame (30) and a load-bearing portion (40). The lifting device includes a movable pulley assembly (50), a fixed pulley assembly (60), a drum (70) and a lifting rope (80). The frame (30) is used to be installed on a fixed foundation. The load-bearing portion (40) is used to place the heavy object. The movable pulley assembly (50) is arranged on the load-bearing portion (40). The fixed pulley assembly (60) is arranged on the frame (30). One end of the lifting rope (80) is connected to the frame (30). The lifting rope (80) is wound around the movable pulley assembly (50) and the fixed pulley assembly (60). The other end of the lifting rope (80) is connected to the drum (70) and the lifting rope (80) is wound around the drum (70). The motor (10) is connected to the drum (70) to drive the drum (70) to rotate, so that the lifting rope (80) lifts the load-bearing portion (40).

7. The hoist according to claim 6, characterized in that The movable pulley assembly (50) includes a plurality of movable pulleys (51), and the plurality of movable pulleys (51) are arranged at intervals on the bearing portion (40); the fixed pulley assembly (60) includes a plurality of fixed pulleys (61), and the plurality of fixed pulleys (61) are arranged at intervals on the frame (30), and the lifting rope (80) is sequentially wound around the plurality of movable pulleys (51) and the plurality of fixed pulleys (61).

8. The elevator according to claim 1, characterized in that The hoist further comprises a control module, the control module being in communication with the power device; the hoisting device comprises a hoisting rope (80) for hoisting the weight; the hoist further comprises: a first sensor (100) for detecting a lifting speed of the lifting rope (80), the first sensor (100) being communicatively connected to the control module to send the detected lifting speed to the control module so that the control module adjusts the operating state of the power device according to the lifting speed; and / or A second sensor is used to detect the tension of the lifting rope (80), and the second sensor is communicatively connected to the control module to send the detected tension to the control module so that the control module adjusts the operating state of the power device according to the tension.

9. The elevator according to claim 1, characterized in that The elevator also includes a control module, a monitoring module and a display module. The monitoring module and the display module are both communicatively connected to the control module. The monitoring module is used to monitor the energy consumption of the elevator, and the energy consumption of the elevator monitored by the monitoring module is displayed on the display module through the control module.

10. The hoist according to claim 9, characterized in that The monitoring module includes a current sensor, a voltage sensor and a data processing module, and the current sensor and the voltage sensor are respectively communicated with the data processing module; the current sensor is used to obtain the current in the circuit of the hoist and send the current data to the data processing module, and the voltage sensor is used to obtain the voltage in the circuit of the hoist and send the voltage data to the data processing module; the data processing module is communicated with the control module, and the data processing module confirms the energy consumption of the hoist based on the current data and the voltage data and sends the energy consumption of the hoist to the control module.

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