Electrical equipment and wind generating set
By using electromagnetic locking components and locking contacts in the power equipment of wind turbine generator sets to control the opening and closing of cabinet doors, the safety hazards of operating high-voltage circuits with electricity are solved, achieving higher reliability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-04-07
AI Technical Summary
There are safety hazards such as electric shock and arc burns caused by operating high-voltage circuits with electrical equipment in existing wind turbine generators during maintenance.
Electromagnetic locking components and locking contacts are used to control the opening of the cabinet door, ensuring that the cabinet door can only be opened after a power outage, and triggering a power outage when the door is forcibly opened, thereby reducing the risk of electric shock to operators.
It effectively reduces the possibility of electric shock injury to operators and improves the reliability and safety of power equipment.
Smart Images
Figure CN224097238U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wind power generation technology, and in particular to a power equipment and a wind turbine generator set. Background Technology
[0002] Existing wind turbine generator sets typically include ring main units, switch cabinets, and other devices to perform corresponding electrical functions. These devices usually house multiple electrical functional components, such as various switching assemblies and control components, within a cabinet with a certain internal space. In some of these cabinets, the voltage carried by these electrical functional components may reach hundreds of volts. During repairs or maintenance, opening the cabinet door can easily lead to electric shock or arc burns due to proximity to high-voltage conductive components, posing a significant safety hazard.
[0003] Therefore, there is an urgent need for a power equipment that can improve reliability and reduce the risk of electric shock, as well as a corresponding wind turbine generator set. Utility Model Content
[0004] This application provides an electrical device and a wind turbine generator set, which can improve reliability and reduce the possibility of electric shock injury to operators.
[0005] In a first aspect, an embodiment of this application provides an electrical device, comprising: a cabinet, including a main body and a cabinet door, the main body having an opening, the cabinet door being connected to the main body to open or close the opening; a functional component, disposed within the cabinet, the functional component including a power supply circuit and functional parts electrically connected to each other; a locking component, disposed within the cabinet, the locking component including an electromagnetic locking element, the electromagnetic locking element including a locking body and locking contacts, the locking body being connected to the cabinet door and the main body to switch the cabinet door between a locked state and an open state relative to the main body, the locking contacts being disposed on the locking body and capable of moving with the cabinet door to connect or disconnect the power supply circuit; and a control component, connected to the functional component and the locking component, the control component being used to control the locking and unlocking of the electromagnetic locking element and the switching on and off of the power supply circuit.
[0006] According to one aspect of the embodiments of this application, the locking assembly includes a plurality of electromagnetic locking elements; the power equipment also includes an auxiliary power supply, which is independently configured with respect to the power supply circuit, and the locking body of at least one of the plurality of electromagnetic locking elements is electrically connected to the power supply circuit, and at least another electromagnetic locking element is electrically connected to the auxiliary power supply.
[0007] According to one aspect of the embodiments of this application, the power equipment further includes an isolation transformer connected between the power supply circuit and at least one electromagnetic locking element.
[0008] According to one aspect of the embodiments of this application, the auxiliary power source includes a generator and / or a battery.
[0009] According to one aspect of the embodiments of this application, the power equipment further includes a limit switch, which is connected to the main body or cabinet door. The limit switch can switch states as the cabinet door moves to connect or disconnect the power supply circuit.
[0010] According to one aspect of the embodiments of this application, the power equipment further includes an adapter electrically connected between the control component and the electromagnetic locking component; the adapter includes at least one of a relay and a contactor.
[0011] According to one aspect of the embodiments of this application, the control component includes a detection element and a control element that are communicatively connected to each other. The detection element is used to acquire the on / off state of the power supply circuit, and the control element is used to control the state of the electromagnetic locking element and the on / off state of the power supply circuit.
[0012] According to one aspect of the embodiments of this application, the control component further includes an identity recognition component communicatively connected to the control component, the identity recognition component including at least one of a face recognition module, a fingerprint recognition module, a voice recognition module, and a biometric information recognition module.
[0013] According to one aspect of the embodiments of this application, the power equipment further includes an indicator, which is disposed in the cabinet and / or on the functional component, and is used to indicate the status of the electromagnetic locking member and / or the status of the functional component; the indicator includes at least one of a display panel, an indicator light, and a speaker.
[0014] According to one aspect of the embodiments of this application, the cabinet door is connected to the main body by snap-fit, magnetic adsorption, or rotation, and the locking assembly further includes a mechanical locking member for locking the cabinet door.
[0015] According to one aspect of the embodiments of this application, the main body is provided with multiple openings, the cabinet includes multiple cabinet doors, each of which is respectively provided with respect to the multiple openings, and the power equipment includes multiple locking components, each of which is respectively provided with respect to the multiple cabinet doors.
[0016] Secondly, according to embodiments of this application, a wind turbine generator set is provided, including the power equipment in any embodiment of the first aspect.
[0017] The power equipment provided in this application includes a cabinet, functional components disposed within the cabinet, a locking component disposed within the cabinet, and a control component. The cabinet has a cabinet door, and the locking component further includes an electromagnetic locking element and a locking contact. The electromagnetic locking element can switch between a locked cabinet door state and an open cabinet door state, while the locking contact is connected in series in the power supply circuit of the functional components. Thus, the functional components can be immediately de-energized when no unlocking signal is received and the cabinet door is forcibly opened. Furthermore, the control component can control the electromagnetic locking element to reopen after the functional components inside the cabinet are de-energized, thereby effectively reducing the risk of electric shock to operators and improving reliability. Attached Figure Description
[0018] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.
[0019] Figure 1 This is a schematic diagram of the structure of a power equipment provided in one embodiment of this application;
[0020] Figure 2 This is a schematic diagram of the circuit structure of a power device provided in one embodiment of this application;
[0021] Figure 3 This is a schematic diagram of the structure of a power device provided in another embodiment of this application;
[0022] Figure 4 This is a schematic diagram of the structure of a power equipment provided in another embodiment of this application;
[0023] Figure 5 This is a schematic diagram of the structure of a wind turbine generator set provided in one embodiment of this application.
[0024] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale.
[0025] 100 - Electrical equipment; 200 - Wind turbine generator set;
[0026] 10-Cabinet; 20-Functional components; 30-Locking components; 40-Control components; 50-Auxiliary power supply; 60-Limit switches; 70-Adapters;
[0027] 11-Main body; 12-Cabinet door; 31-Electromagnetic locking component; 41-Detection component; 42-Control component; 43-Identification component;
[0028] 111 - Opening. Detailed Implementation
[0029] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.
[0030] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the molding die and molding method of this application. It should also be noted that, unless otherwise explicitly specified and limited, "multiple" means two or more, and the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. The terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application 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 application. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0031] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art will understand the specific meaning of these terms in this application based on the specific circumstances.
[0032] A wind turbine generator set is a device used to convert wind power into electricity. It typically consists of components such as a rotor, nacelle, and tower. The generator is usually installed in the nacelle, and the power equipment used to transmit, store, or regulate electricity is usually installed in the tower. These power equipment are usually housed in multiple independent cabinets, such as ring main units, switch cabinets, and converter cabinets.
[0033] Based on this, the applicant discovered that some electrical equipment in wind turbine generator sets contains high-voltage circuits, with voltages reaching 400V or 690V. Existing high-voltage electrical equipment of this type is typically housed in cabinets, with openings secured by bolts or other fasteners. When disassembled and opened, the internal electrical components remain energized, and the fasteners can easily fall into the circuit components or the bottom of the cabinet, posing a significant safety hazard to operators who are at high risk of electric shock or arc burns.
[0034] To address the aforementioned problems, this application provides a power device comprising an electromagnetic locking element and a locking contact. The locking contact is connected to the power supply circuit of the functional components, and the opening of the cabinet door can be controlled by controlling the electromagnetic locking element. This allows the cabinet door to be opened after the internal functional components are de-energized, and a power outage is triggered when the cabinet door is forcibly opened. This reduces the risk of electric shock to operators and effectively improves the reliability of the power device.
[0035] It is understood that the following embodiments of this application are only used as an example of applying power equipment to wind turbine generator sets. However, the power equipment provided in the embodiments of this application is not limited to the following embodiments. It can also be used in other occasions where protection is required for high-voltage circuit components and to protect them.
[0036] To better understand this application, the following will be combined with... Figures 1 to 5 Provide a detailed description.
[0037] Please refer to the following: Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of a power device provided in one embodiment of this application. Figure 2 This is a schematic diagram of the circuit structure of a power device provided in one embodiment of this application. Figure 3 This is a schematic diagram of the structure of a power device provided in another embodiment of this application.
[0038] In a first aspect, an electrical device 100 is provided according to an embodiment of this application, comprising: a cabinet 10, including a main body 11 and a cabinet door 12, the main body 11 having an opening 111, the cabinet door 12 being connected to the main body 11 to open or close the opening 111; a functional component 20 disposed within the cabinet 10, the functional component 20 including a power supply circuit and functional parts electrically connected to each other; a locking component 30 disposed within the cabinet 10, the locking component 30 including an electromagnetic locking element 31, the electromagnetic locking element 31 including a locking body and a locking contact, the locking body being connected to the cabinet door 12 and the main body 11 to allow the cabinet door 12 to switch between a locked state and an open state relative to the main body 11, the locking contact being disposed on the locking body and movable with the cabinet door 12 to connect or disconnect the power supply circuit; and a control component 40 connected to the functional component 20 and the locking component 30, the control component 40 being used to control the locking and unlocking of the electromagnetic locking element 31 and the connection and disconnection of the power supply circuit.
[0039] This application provides an embodiment of an electrical device 100, including a cabinet 10, functional components 20, locking components 30, and control components 40. The cabinet 10 provides housing, support, and protection. Its shape and volume can be set according to its location, the dimensions of its internal components, and the location and dimensions of other electrically connected devices. It only needs to provide internal housing space and prevent external operators from directly touching the internal electrical components.
[0040] The cabinet 10 includes a main body 11 and a cabinet door 12. The main body 11 can be the main structural component of the cabinet 10, and may include a support frame and a wall portion disposed within the frame to enclose and form an internal receiving cavity. The main body 11 has an opening 111, and the cabinet door 12 is connected to the main body 11 and is configured to close the opening 111. When the cabinet door 12 is closed, a relatively sealed environment can be formed inside the cabinet 10 to reduce interference from external dust and impurities on the functional components 20.
[0041] Functional components 20 are installed inside the cabinet 10 to realize the target electrical functions of the power equipment 100. Taking the power equipment 100 installed in the wind turbine generator set 200 as an example, the power equipment 100 can be any of the equipment with high-voltage circuits inside, such as ring network cabinet, switch cabinet or converter cabinet, and the internal functional components 20 are set according to the functions that need to be realized.
[0042] Functional component 20 includes functional parts and a power supply circuit. The functional parts may include circuit elements such as switches and relays for implementing electrical functions. The power supply circuit refers to the circuit that supplies power to the functional parts to maintain their operation. Switching the power supply circuit can de-energize the functional parts. For example, a switching element, such as a knife switch, may be connected in series in the power supply circuit to disconnect the power supply to the functional parts by means of tripping.
[0043] A locking assembly 30 is disposed on the cabinet 10, and can optionally be disposed on both the main body 11 and the cabinet door 12 to control the locking and opening of the cabinet door 12. The locking assembly 30 includes an electromagnetic locking element 31, which can generate a magnetic attraction force when energized, thereby attracting the cabinet door 12 to the main body 11, so that the cabinet door 12 is switched to a state of mutual locking with the main body 11. The electromagnetic locking element 31 further includes a locking body and locking contacts, wherein the locking body is used to realize the aforementioned attraction locking and power-off release functions, and the locking contacts are connected to the power supply circuit of the functional component 20 and can switch states synchronously with the locking body.
[0044] The locking mechanism can control the locking and opening states of the cabinet door 12 relative to the main body 11. For example, in the locked state, the locking contacts can be connected, and in the open state, the locking contacts can be disconnected. When the locking contacts are connected in series in the power supply circuit of the functional component 20, the power supply circuit can be switched on and off by controlling the opening and closing of the locking contacts.
[0045] Optionally, the electromagnetic locking element 31 can be controlled by an electrical signal. At the same time, the electromagnetic lock can also be equipped with a keyhole and a corresponding key, so that it can be opened on-site by key as a backup control method, reducing the possibility that the cabinet door 12 cannot be opened due to the failure of the electromagnetic locking element 31.
[0046] The control component 40 can be located inside or outside the cabinet 10, adjacent to it. The control component 40 controls the on / off state of the aforementioned electromagnetic locking element 31, and also controls the on / off state of the power supply circuit in the functional component 20. Taking the power equipment 100 as a ring main unit as an example, its functional component 20 also includes a control system for transmitting and receiving control signals with a remote terminal. For example, the ring main unit can transmit signals to the main control PLC (Programmable Logic Controller) via a DP bus, then to the central control system, and finally upload them to the cloud.
[0047] Based on this, in the embodiments of this application, the control component 40 used to control the locking component 30 and the power supply circuit can be set independently from the control system described above in the ring main unit to improve safety; or, the control component 40 can be integrated into the control system to save space and reduce costs.
[0048] During the use of the power equipment 100, under normal operating conditions, the electromagnetic locking component 31 keeps the cabinet door 12 locked to the main body 11, and the internal functional component 20 is energized. When it is necessary to open the cabinet door 12, a signal can be sent to the locking component 30 and the functional component 20 through the control component 40. After disconnecting the power supply circuit of the functional component 20, the electromagnetic locking component 31 is unlocked, allowing the cabinet door 12 to separate from the main body 11 and open. Under normal operating conditions, if the cabinet door 12 is forcibly opened without sending an unlocking signal, the locking contact in the electromagnetic locking component 31 will be triggered. The locking contact will disconnect as the cabinet door 12 opens, thereby momentarily de-energizing the functional component 20.
[0049] Through the above structure and control method, the power equipment 100 can have good safety, effectively reduce the possibility of electric shock injury to operators, and reduce safety hazards.
[0050] In some optional embodiments, the locking assembly 30 includes a plurality of electromagnetic locking elements 31; the power equipment 100 also includes an auxiliary power supply 50, which is independently configured from the power supply circuit, and the locking body of at least one of the plurality of electromagnetic locking elements 31 is electrically connected to the power supply circuit, and at least another electromagnetic locking element 31 is electrically connected to the auxiliary power supply 50.
[0051] Optionally, taking a locking component 30 located on the same cabinet door 12 as an example, the same locking component 30 can be provided with multiple electromagnetic locking elements 31, and these electromagnetic locking elements 31 can be located at different positions on the cabinet door 12. Taking a rectangular cabinet door 12 that is rotatably connected to the main body 11 on one side as an example, multiple electromagnetic locking elements 31 can be located on the opposite side from the rotation axis, and at least at two corners of the rectangular cabinet door 12, to better achieve locking of the cabinet door 12.
[0052] Based on this, the power equipment 100 may also include an auxiliary power supply 50 that is independent of the power supply circuit of the functional component 20 for power supply. Some of the multiple electromagnetic locking elements 31 are powered by the auxiliary power supply 50, while others are powered by the power supply circuit of the functional component 20.
[0053] The auxiliary power supply 50 can independently supply power to the electromagnetic locking member 31, separate from the aforementioned power supply circuit. Therefore, in the event of a power supply failure to the functional component 20, the electromagnetic locking member 31 powered by the power supply circuit may fail and disconnect, while the electromagnetic locking member 31 powered independently by the auxiliary power supply 50 can maintain normal operation. This configuration allows the electrical equipment 100 to maintain the lock on the cabinet door 12 in the event of a fault, further improving reliability.
[0054] It is understood that in embodiments with multiple electromagnetic locking elements 31, the control logic can be set according to the placement of the electromagnetic locking elements 31. For example, if multiple electromagnetic locking elements 31 are distributed in different locations, and the cabinet door 12 cannot be opened when some of the electromagnetic locking elements 31 are open and others are locked, the locking assembly 30 can be configured to trigger a power-off circuit only when all locking contacts are open. Correspondingly, in embodiments where the cabinet door 12 can be opened when some of the electromagnetic locking elements 31 are open and others are locked, the locking assembly 30 can be configured to immediately trigger a power-off circuit when any locking contact is open. Under the premise of conforming to the aforementioned logic, this application does not specifically limit the specific circuit configuration.
[0055] In some alternative embodiments, the power equipment 100 also includes an isolation transformer connected between the power supply circuit and at least one electromagnetic locking element 31.
[0056] Optionally, the power equipment 100 may also include an isolation transformer, which may be connected in series between the power supply circuit and the electromagnetic locking element 31. Further, each electromagnetic locking element 31 that draws power from the power supply circuit may be connected to the power supply circuit through the isolation transformer to further improve the reliability of each electromagnetic locking element 31.
[0057] As is understood, an isolation transformer refers to a transformer with electrical isolation between its input and output windings. In other words, an isolation transformer completely insulates the primary and secondary sides, making the secondary circuit levitate to ground. This effectively prevents operators from accidentally touching live parts simultaneously, further reducing the risk of electric shock. Simultaneously, utilizing the high high-frequency losses of the isolation transformer core, it can suppress high-frequency noise from entering the control circuit, providing a good filtering effect and thus supplying a clean power supply voltage to the electrical equipment.
[0058] Therefore, by installing an isolation transformer between the power supply circuit and the electromagnetic locking element 31, fluctuations in the power supply circuit can be prevented from interfering with the state of the electromagnetic locking element 31, thus improving the stability and reliability of locking the cabinet door 12. Simultaneously, by installing the isolation transformer, the power supply voltage required by the electromagnetic locking element 31 can be matched with the voltage of the power supply circuit, facilitating compatibility with different models of electromagnetic locking elements 31.
[0059] In some alternative embodiments, the auxiliary power supply 50 includes a generator and / or a battery.
[0060] In embodiments where an auxiliary power supply 50 is provided, to ensure that the power supply of the auxiliary power supply 50 is independent of the power supply circuit in the functional component 20, the auxiliary power supply 50 may include a generator and / or a battery. The generator may be a commonly used diesel generator, and the battery may be a lead-acid battery or a lithium battery with a certain capacity.
[0061] By setting up a generator and / or a battery as an auxiliary power source 50, the electromagnetic locking component 31, which draws power from that location, can have a stable power supply, reducing the possibility of the electromagnetic locking component 31 being interfered with and malfunctioning.
[0062] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of a power device provided in another embodiment of this application. In some optional embodiments, the power device 100 further includes a limit switch 60, which is connected to the main body 11 or the cabinet door 12. The limit switch 60 can switch states as the cabinet door 12 moves to connect or disconnect the power supply circuit.
[0063] Optionally, to further improve the reliability of the power equipment 100, a limit switch 60 may be included as a safety structure for redundant design. The limit switch 60 is disposed on the main body 11 or the cabinet door 12 and can be triggered when the cabinet door 12 is opened, sending a signal to control the power supply circuit to disconnect. The limit switch 60 may be directly connected in series as a dry contact in the power supply circuit of the functional component 20, improving its reliability through a mechanical triggering structure and making it unaffected by the power supply.
[0064] For example, the limit switch 60 may be equipped with an elastic element, which can be used to lift a trigger element. When the cabinet door 12 and the main body 11 are locked, the cabinet door 12 presses the trigger element to keep it in an untriggered state. If the electromagnetic locking element 31 fails due to power supply or other reasons, the trigger element will pop out after the cabinet door 12 is opened to disconnect the power supply circuit.
[0065] Similar to the electromagnetic locking element 31, the power equipment 100 may be equipped with multiple limit switches 60, which may be located at different positions on the cabinet door 12. Taking the rotation and opening of the cabinet door 12 as an example, in order to facilitate the triggering of the limit switch 60 when the cabinet door 12 is opened, the limit switch 60 may be located near the rotating shaft.
[0066] In an embodiment where both the electromagnetic locking element 31 and the limit switch 60 are configured, the limit switch 60 and the electromagnetic locking element 31 can be configured to have an "AND" logic relationship. That is, the power supply circuit is controlled to disconnect power only after both the electromagnetic locking element 31 and the limit switch 60 are triggered simultaneously, thereby reducing the possibility of false triggering.
[0067] By setting a limit switch 60, an additional safety measure can be provided for the power equipment 100 through a mechanical triggering structure. This ensures that the power supply circuit is immediately cut off when the cabinet door 12 is forcibly opened, even if the electromagnetic locking component 31 fails to de-energize, thereby further improving the reliability of the power equipment 100.
[0068] In some alternative embodiments, the power equipment 100 further includes an adapter 70 electrically connected between the control component 40 and the electromagnetic locking component 31; the adapter 70 includes at least one of a relay and a contactor.
[0069] Optionally, the power equipment 100 may further include a converter 70, which serves as an intermediary between the control component 40 and the electromagnetic locking element 31, preventing the main control PLC from being directly connected to the electromagnetic locking element 31. By providing the converter 70, the control of the electromagnetic locking element 31 becomes more stable, and it facilitates the automatic control, protection, and adjustment functions of the control component 40 on the electromagnetic locking element 31. Specifically, the converter 70 can be at least one of a relay or a contactor.
[0070] In some optional embodiments, the control component 40 includes a detection element 41 and a control element 42 that are communicatively connected to each other. The detection element 41 is used to acquire the on / off state of the power supply circuit, and the control element 42 is used to control the state of the electromagnetic locking element 31 and the on / off state of the power supply circuit.
[0071] In this embodiment, the control component 40 is used to control the on / off state of various components in the power equipment 100. To achieve the corresponding electric shock protection function, the control component 40 may include a detection component 41 and a control component 42 that are interconnected. Here, the communication connection refers to the remote exchange of signals through a signal transceiver module, or it may refer to the direct exchange of electrical signals by setting up connection lines.
[0072] Specifically, the detection element 41 in the control component 40 can be used to obtain the on / off state of the power supply circuit, that is, to monitor in real time whether the power supply circuit is in a high-voltage working state. The control element 42 is used to control the locking / unlocking state of the electromagnetic locking element 31 and the on / off state of the power supply circuit.
[0073] Therefore, during the operation of the power equipment 100, the power supply circuit status can be monitored in real time by the detection element 41. After the control component 40 issues an unlocking signal, the power supply circuit can be de-energized first by the control element 42. After the detection element 41 confirms that the power supply circuit is de-energized, the control element 42 then controls the electromagnetic locking element 31 to switch to the open state. This setting ensures that the cabinet door 12 can only be opened after the power supply circuit is de-energized, thereby further improving the reliability of the power equipment 100.
[0074] In some optional embodiments, the control component 40 further includes an identification component 43 that is communicatively connected to the control component 42. The identification component 43 includes at least one of a face recognition module, a fingerprint recognition module, a voice recognition module, and a biometric information recognition module.
[0075] As previously mentioned, the control component 40 in the power equipment 100 can receive remote control signals for remote unlocking. Simultaneously, the control component 40 can also have on-site unlocking capabilities. Furthermore, to facilitate verification of the unlocking personnel's identity and authorization, the control component 40 may further include an identification component 43 communicatively connected to the control component 42, to avoid accidental activation or mis-locking, thereby improving reliability.
[0076] Specifically, the identification device 43 may include at least one of a face recognition module, a fingerprint recognition module, a voice recognition module, and a biometric information recognition module. At the remote control system, the corresponding information of the person with unlocking authority can be entered, and it is set to send an unlock signal to the control component 40 in the power equipment 100 only after being verified by the aforementioned identification module.
[0077] Similarly, to facilitate on-site operation, an identification device 43 can be installed at the location of the power equipment 100. It can be installed on the outer surface of the cabinet 10, or it can be installed in other locations outside the cabinet 10 but nearby. After the on-site operator is identified, the control function component 20 is powered off, and then the cabinet door 12 is opened.
[0078] Optionally, to make operation more convenient, in addition to the aforementioned identification modules, a login system can be set up in the control system to verify whether the operator can control the issuance of the unlock signal by verifying the account permissions corresponding to the operator's identity. This can improve reliability while reducing the cost of setting up identification modules.
[0079] In some alternative embodiments, the power equipment 100 further includes an indicator disposed on the cabinet 10 and / or on the functional component 20, the indicator being used to indicate the status of the electromagnetic locking member 31 and / or the status of the functional component 20; the indicator includes at least one of a display panel, an indicator light, and a speaker.
[0080] To facilitate the identification of the real-time status of the power equipment 100, the power equipment 100 may also include an indicator for indicating the status of the electromagnetic locking member 31 and / or the status of the functional component 20. This indicator may be a component capable of providing visual or acoustic signals, such as at least one of a display panel, indicator lights, and a speaker.
[0081] For example, an indicator light can be used as the indicator, and the indicator light can be installed at the inlet of one of the unused conduits of a cable in the functional component 20 using screws or other fasteners. The different brightness states of the indicator light can indicate the status of the electromagnetic locking element 31 and the functional component 20. For example, the states of constant light, constant darkness, flashing, high and low brightness can be correlated with whether the lock has been remotely unlocked, whether the power supply circuit of the functional component 20 has been disconnected, and the real-time status of the electromagnetic locking element 31. The operator can quickly judge the overall status of the power equipment 100 by the status of the indicator light.
[0082] Optionally, the power equipment 100 may be equipped with multiple indicators, such as indicator lights and speakers, and the status of different components in the power equipment 100 may be indicated by the multiple indicators. Alternatively, the indicators may also be used to issue an alarm signal when the electromagnetic locking member 31 is forcibly opened without receiving an unlocking signal, so as to make the operator aware of the abnormal situation as soon as possible.
[0083] By setting indicators, the status of the locking component 30 and the functional component 20 can be displayed intuitively and quickly, thereby further reducing the possibility of electric shock to the operator.
[0084] In some alternative embodiments, the cabinet door 12 is snap-fitted to the main body 11, magnetically attached, or rotatably connected, and the locking assembly 30 further includes a mechanical locking element for locking the cabinet door 12.
[0085] In this embodiment, the cabinet door 12 is disposed on the main body 11 and is used to close the opening 111 thereon. Based on the ability to connect with the main body 11 and have a certain degree of sealing, the cabinet door 12 and the main body 11 can adopt a variety of different connection methods.
[0086] Specifically, the cabinet door 12 can be rotatably connected to the main body 11 via a hinge or pivot, and can switch between open and closed states by rotating relative to the main body 11. Alternatively, the cabinet door 12 can be detachably connected to the main body 11 and can be removed when switching to the open state. In this embodiment, the connection method between the cabinet door 12 and the main body 11 can be either a snap-fit connection or a magnetic connection. It is understood that the magnetic connection here can be achieved through an electrically controlled magnetic assembly to facilitate control of the cabinet door 12 switching between open and locked states.
[0087] Understandably, in embodiments where the cabinet door 12 needs to be removed from the main body 11 to switch states, the main body 11 may be correspondingly provided with fixing or hanging components, such as: buckles, hooks, or another set of magnetic structures offset from the opening 111. This fixing / hanging structure is used to place the removed cabinet door 12, allowing it to stay in a preset fixed position, preventing the cabinet door 12 from falling or tipping over during the operation of the functional components 20 by the staff, and further improving reliability.
[0088] In some optional embodiments, the main body 11 is provided with a plurality of openings 111, the cabinet 10 includes a plurality of cabinet doors 12, the plurality of cabinet doors 12 are respectively provided corresponding to the plurality of openings 111, and the power equipment 100 includes a plurality of locking components 30, the plurality of locking components 30 are respectively provided corresponding to the plurality of cabinet doors 12.
[0089] The power equipment 100 in this embodiment includes a cabinet 10, which further includes a main body 11 and a cabinet door 12 connected to the main body 11. The cabinet door 12 is used to close the opening 111 on the main body 11. Furthermore, to facilitate maintenance or replacement of the functional components 20 inside the cabinet 10 from different directions, or to facilitate the placement of the functional components 20 inside the cabinet 10, the main body 11 may have multiple openings 111, and a cabinet door 12 may be provided at each opening 111.
[0090] Specifically, a single cabinet door 12 can be provided at the same opening 111, which covers the entire opening 111 when locked; or, multiple cabinet doors 12 can be provided at the same opening 111, such as double-leaf revolving doors or sliding doors. The same cabinet door 12 can be used at each opening 111 in the same cabinet 10 to reduce overall cost and facilitate the installation of the locking assembly 30; or, different types of cabinet doors 12 can be used at each opening 111 in the same cabinet 10. For example, a rotating sliding door can be used at an opening 111 with sufficient external space where large components need to pass through, while a side-sliding sliding door can be used at an opening 111 with limited space where the cabinet door 12 is inconvenient to rotate.
[0091] Based on this, the power equipment 100 may include multiple locking components 30, and these locking components 30 can be correspondingly matched with each cabinet door 12. That is, multiple locking components 30 need to be correspondingly set at the same opening 111 where multiple cabinet doors 12 are provided. By setting each locking component 30 to a cabinet door 12 in a one-to-one correspondence, the opening / locking state of each cabinet door 12 can be controlled in a targeted manner, thereby further improving the reliability of the power equipment 100.
[0092] Optionally, in embodiments where the power equipment 100 includes limit switches 60, the limit switches 60 can be configured one-to-one with the cabinet doors 12 to further improve safety; or, the limit switches 60 can be configured on the cabinet doors 12 that are frequently opened and closed to improve safety while reducing the required cost.
[0093] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of a wind turbine generator set provided in one embodiment of this application. In a second aspect, an embodiment of this application provides a wind turbine generator set 200, including the power equipment 100 in any embodiment of the first aspect.
[0094] This application also proposes a wind turbine generator set 200, including the aforementioned power equipment 100. The wind turbine generator set 200 may further include a rotor, a nacelle, and a tower, wherein the rotor is rotatably connected to the nacelle, and the tower extends at least partially vertically to support the nacelle and rotor. Depending on the specific structure of the functional components 20 within the cabinet 10, the power equipment 100 in this embodiment can be used to perform different functions, and its installation position can be adjusted accordingly. It may be installed within the tower and electrically connected to the nacelle and / or other equipment within the tower via power lines.
[0095] The wind turbine generator set 200 provided in this application has all the beneficial effects of the power equipment 100 provided in the first aspect. For details, please refer to the specific description of the power equipment 100 in the above embodiments. This application will not repeat the details here.
[0096] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A power equipment (100), characterized in that, include: The cabinet (10) includes a main body (11) and a cabinet door (12). The main body (11) has an opening (111), and the cabinet door (12) is connected to the main body (11) to open or close the opening (111). Functional component (20) is disposed within the cabinet (10), and the functional component (20) includes a power supply circuit and functional parts that are electrically connected to each other; A locking component (30) is disposed on the cabinet (10). The locking component (30) includes an electromagnetic locking element (31). The electromagnetic locking element (31) includes a locking body and a locking contact. The locking body is connected to the cabinet door (12) and the main body (11) so that the cabinet door (12) can switch between a locked state and an open state relative to the main body (11). The locking contact is disposed on the locking body and can move with the cabinet door (12) to connect or disconnect the power supply circuit. A control component (40) is connected to the functional component (20) and the locking component (30). The control component (40) is used to control the locking and unlocking of the electromagnetic locking element (31) and the switching on and off of the power supply circuit.
2. The power equipment (100) according to claim 1, characterized in that, The locking assembly (30) includes a plurality of the electromagnetic locking elements (31); The power equipment (100) also includes an auxiliary power supply (50), which is independently set with respect to the power supply circuit. The locking body of at least one of the plurality of electromagnetic locking elements (31) is electrically connected to the power supply circuit, and at least another electromagnetic locking element (31) is electrically connected to the auxiliary power supply (50).
3. The power equipment (100) according to claim 2, characterized in that, The power equipment (100) also includes an isolation transformer connected between the power supply circuit and at least one of the electromagnetic locking elements (31).
4. The power equipment (100) according to claim 2, characterized in that, The auxiliary power source (50) includes a generator and / or a battery.
5. The power equipment (100) according to claim 1, characterized in that, The power equipment (100) also includes a limit switch (60), which is connected to the main body (11) or the cabinet door (12). The limit switch (60) can switch states as the cabinet door (12) moves to connect or disconnect the power supply circuit.
6. The power equipment (100) according to claim 1, characterized in that, The power equipment (100) also includes an adapter (70) which is electrically connected between the control component (40) and the electromagnetic locking component (31); The adapter (70) includes at least one of a relay and a contactor.
7. The power equipment (100) according to claim 1, characterized in that, The control component (40) includes a detection element (41) and a control element (42) that are interconnected. The detection element (41) is used to obtain the on / off state of the power supply circuit, and the control element (42) is used to control the state of the electromagnetic locking element (31) and the on / off state of the power supply circuit.
8. The power equipment (100) according to claim 7, characterized in that, The control component (40) further includes an identity recognition component (43) that is communicatively connected to the control component (42), and the identity recognition component (43) includes at least one of a face recognition module, a fingerprint recognition module, a voice recognition module, and a biometric information recognition module.
9. The power equipment (100) according to claim 1, characterized in that, The power equipment (100) also includes an indicator, which is disposed on the cabinet (10) and / or on the functional component (20), and the indicator is used to indicate the status of the electromagnetic locking member (31) and / or the status of the functional component (20); The indicator includes at least one of a display panel, an indicator light, and a speaker.
10. The power equipment (100) according to claim 1, characterized in that, The cabinet door (12) is connected to the main body (11) by snap-fit, magnetic adsorption or rotation. The locking assembly (30) also includes a mechanical locking component, which is used to lock the cabinet door (12).
11. The power equipment (100) according to claim 1, characterized in that, The main body (11) is provided with a plurality of openings (111), the cabinet (10) includes a plurality of cabinet doors (12), the plurality of cabinet doors (12) are respectively provided corresponding to the plurality of openings (111), and the power equipment (100) includes a plurality of locking components (30), the plurality of locking components (30) are respectively provided corresponding to the plurality of cabinet doors (12).
12. A wind turbine generator set (200), characterized in that, Includes the electrical equipment (100) as described in any one of claims 1 to 11.