A frequency converter maintenance tool box

Abstract

The utility model relates to industrial equipment maintenance technical field, concretely relates to a frequency converter maintenance tool box, including box, main control computer and tool storage box, the top of box is equipped with handle and main control computer, the inside of box is equipped with direct current generator, the bottom of box is equipped with moving wheel, and tool storage box is located at the front of box, the back of box is equipped with push-pull handle still, the box adopts quadrilateral structure, the top of box is equipped with handle and main control computer screen, main control computer screen top is equipped with power indicator lamp and buzzer alarm still, the inside of box is equipped with main control computer host computer part and direct current generator, the bottom of box is equipped with moving wheel, and the locking brake is equipped on moving wheel, and moving wheel can rotate freely, and the front of box is equipped with tool storage box, and the back is equipped with push-pull handle, the utility model discloses frequency converter maintenance tool box: standardization operation procedure, high -efficient completion frequency converter maintenance, reduce training cost, reduce technical threshold, guarantee operation safety, and it is convenient to move.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment maintenance technology, specifically to a frequency converter maintenance toolbox. Background Technology

[0002] As a key device in industrial automation systems, the maintenance of frequency converters typically involves complex electrical testing, module replacement, and parameter adjustment. Currently, maintenance personnel often need to carry various tools, testing equipment, and debugging software when repairing frequency converters. These tools are scattered and difficult to manage, and the maintenance process relies on personal experience with a lack of standardized guidance, resulting in low maintenance efficiency, high error rates, and certain safety hazards.

[0003] While some general-purpose electrical toolkits or maintenance kits exist in the current technology, they typically lack dedicated functions for inverter maintenance, such as pre-charged DC power supplies, standardized process guidance, and integrated debugging software. Furthermore, ordinary toolkits also have shortcomings in electrical safety protection and intelligent tool management.

[0004] Therefore, there is an urgent need to design a frequency converter repair toolbox to solve the problems of low efficiency, safety hazards, high dependence on the technical skills of maintenance personnel, and non-standardized and unintelligent maintenance process of existing frequency converter repair technologies. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a frequency converter repair toolbox.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a frequency converter maintenance toolbox, including a box body, a main control computer and a tool storage box. The top of the box body is provided with a handle and the main control computer. The inside of the box body is provided with a DC generator. The bottom of the box body is provided with casters. The tool storage box is located on the front of the box body. The back of the box body is also provided with a push-pull handle.

[0007] Specifically, the enclosure adopts a quadrilateral structure. The top of the enclosure has a handle and a main control computer screen. Above the main control computer screen, there is also a power indicator light and a buzzer alarm. Inside the enclosure, there is the host unit of the main control computer and a DC generator. The bottom of the enclosure has casters with locking brakes. The casters are omnidirectional. The front of the enclosure has a tool storage box. The upper part of the back of the enclosure has a push-pull handle. The push-pull handle is a two-section retractable handle. When the handle is retracted, it is stored in the handle storage box. The right side of the back of the enclosure has a computer power switch, a USB interface and a network cable interface. The lower part of the back of the enclosure also has five different function wiring ports.

[0008] Specifically, the handle includes a left handle and a right handle, which are symmetrically arranged on the top of the box. The handle is provided with an insulating and anti-slip layer. The bottom and corners of the handle adopt an arc-shaped structure. The upper part of the box is provided with an arc-shaped groove that matches the handle. The handle is installed in the arc-shaped groove by rotating through a pivot. When using the handle, pressing one end controls the other end to lift and rotate.

[0009] Specifically, the DC generator is located inside the enclosure, and the DC generator wiring port is located on the lower back of the enclosure. The DC generator wiring port includes a grounding wire port, a DC negative terminal port, a DC positive terminal port, a discharge terminal port, and a power input port. The DC generator can generate a DC voltage of 0-900V.

[0010] Specifically, the screen of the main control computer is located on the top of the enclosure, and the main unit of the main control computer is connected to the computer power switch, USB interface, and network cable interface. The computer power switch is located on the back of the enclosure, and the screen of the main control computer is equipped with a standardized operation module, a frequency converter pre-charge module, a frequency converter debugging module, and a frequency converter debugging data module.

[0011] Specifically, the tool storage box is located on the front of the box, each tool storage box is equipped with an indicator light with a number, the rear end of the tool storage box is equipped with a limit contact, the inside of the tool storage box is equipped with a model label, and the opening of the tool storage box is equipped with an electromagnetic lock pin and a manual lock pin.

[0012] This utility model has the following beneficial effects:

[0013] This utility model's inverter repair toolbox integrates standardized inverter operating procedures, enabling operators to complete inverter repair work more efficiently. By using a central control computer to assist in inverter repair, it reduces training costs for repair personnel and lowers the technical threshold. The toolbox's overall design prioritizes electrical safety, incorporating a power indicator light and a leakage current buzzer alarm. The tools are equipped with grounding wire and discharge cable connectors to ensure safety during operation. The toolbox also features 360° swivel casters with braking function, a toolbox handle, and a retractable push rod for easy movement. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a frequency converter repair toolbox.

[0015] Figure 2 This is a top view of the inverter repair toolbox.

[0016] Figure 3 This is a rear view of the inverter repair toolbox.

[0017] Figure 4 This is a structural diagram of the handle of a frequency converter repair toolbox.

[0018] Figure 5 This is a structural diagram of the tool storage box for inverter repair tool kits.

[0019] Figure 6 This is a top view of the main control computer screen of the inverter repair toolbox.

[0020] In the diagram: 1-Box body, 1.1-Handle, 1.2-Left handle, 1.3-Right handle, 1.4-Sliding wheel, 1.5-Locking brake, 1.6-Power indicator light, 1.7-Buzzer alarm, 1.8-Push-pull handle, 1.9-Storage box, 1.10-Computer start switch, 1.11-USB interface, 1.12-Network cable interface, 1.13-Grounding wire socket, 1.14-DC negative terminal socket, 1.15-DC positive terminal socket, 1.16-Discharge wiring socket, 1.17-Power input socket; 2-Main control computer, 2.1-Standardized operation module, 2.2-Variable frequency pre-charge module, 2.3-Variable frequency drive debugging module, 2.4-Variable frequency drive debugging data module; 3-Tool storage box, 3.1-Indicator light, 3.2-Limit contact, 3.3-Model label, 3.4-Electromagnetic lock pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Example 1:

[0023] like Figures 1-6 As shown, a frequency converter maintenance toolbox includes a housing 1, a main control computer 2, and a tool storage box 3. The top of the housing 1 is provided with a handle 1.1 and the main control computer 2. The inside of the housing 1 is provided with a DC generator. The bottom of the housing 1 is provided with casters 1.4. The tool storage box 3 is located on the front of the housing 1. The back of the housing 1 is also provided with a push-pull handle 1.8.

[0024] The enclosure 1 is used to house and install equipment such as the main control computer 2, DC generator, and tool storage box 3. The top of the enclosure 1 is equipped with a handle 1.1 and the main control computer 2. The handle 1.1 consists of a left handle 1.2 and a right handle 1.3 symmetrically positioned on the top of the enclosure 1. The left and right handles 1.2 and 1.3 allow for lifting by one person or two people from both sides. The handles 1.1 have an insulating and anti-slip layer to prevent electric shock from equipment leakage and for ease of use. The bottom and corners of the handles 1.1 are rounded to prevent sharp parts from injuring workers. The screen of the main control computer 2 is located in the center of the top of the enclosure 1. 2. The upper part of the screen is also equipped with a power indicator light 1.6 and a buzzer alarm 1.7. The indicator light 1.6 illuminates red when a 220V AC power supply is connected, informing the operator that the equipment is powered. The buzzer alarm sounds when the equipment detects leakage or is discharging a live frequency converter, reminding the operator to pay attention to personnel safety. The bottom of the box 1 is equipped with casters 1.4, and each caster 1.4 is equipped with a locking brake 1.5. The locking brake 1.5 is used to lock and fix the casters 1.4 to prevent movement during use. The casters 1.4 can rotate freely and are used to facilitate the movement of the toolbox.

[0025] Main control computer 2 is the main control system of the toolbox. It controls the toolbox storage box, outputs standardized operating procedures, debugs the frequency converter, and retrieves relevant information. Main control computer 2 uses a capacitive main control screen with a built-in Win11 system. The screen displays four main functional modules: Standardized Operations, Frequency Converter Pre-charging, Frequency Converter Debugging, and Frequency Converter Debugging Data. Standardized Operations module 2.1 lists standardized procedures for equipment maintenance and automatically displays the necessary tools. The standardized operation steps and tools are programmable, facilitating updates and optimizations of the standardized operating procedures. The Frequency Converter Pre-charging module starts the DC power generator within the toolbox to pre-charge frequency converters that have not been used for a long time. The Frequency Converter Debugging module 2.3 connects to the Starter software, using the programming interface within the toolbox to connect and debug the frequency converter. The Frequency Converter Debugging Data module 2.4 imports frequency converter maintenance and debugging data videos into main control computer 2 for timely retrieval if needed.

[0026] The main control computer 2 and a DC generator are located inside the enclosure 1. The DC generator's wiring port is located at the bottom of the back of the enclosure 1. The DC generator can generate a DC voltage of 0-900V for the pre-charging operation of the frequency converter.

[0027] The front of the housing 1 has a tool storage box 3. Each tool storage box 3 has a numbered indicator light on its top. The tool storage is used to classify and place tools for easy access. The tool storage box 3 has a limit contact 3.2 on its back, which is used to indicate the status of the tool storage box 3. The tool storage box 3 has a model label 3.3 inside, which is used to fill in the tool model and can be replaced to adapt to tool changes. The tool storage box 3 can be lined with a liner for fixed placement of tools. The liner is also replaceable to adapt to tool changes. The front of the tool storage box 3 has an electromagnetic lock pin 3.4 and a manual lock pin. The electromagnetic lock pin 3.4 is used to lock the tool storage box 3 in conjunction with the electromagnetic lock of the tool box. The manual lock pin is used to manually open the tool storage box 3 if the electromagnetic lock of the tool box fails.

[0028] The upper back of the housing 1 features a push-pull handle 1.8 and a storage box 1.9. The push-pull handle 1.8 is a two-section retractable handle, used to move the toolbox with the casters 1.4. The storage box 1.9 is used to properly store the push-pull handle 1.8 in its retracted state, protecting the handle while facilitating toolbox storage. The back of the housing 1 also features a main control computer 2 power switch 1.10, used to start the computer. Below the power switch are four USB ports 1.11 and three network cable ports 1.12. The USB ports 1.11 are used for… For connecting external keyboards, mice, and storage devices, three computer network cable interfaces are provided: 1.12 is an RJ45 network cable port, RJ45-1 and RJ45-2 are two network ports of the same network card, and RJ45-3 is a network port of a second network card used to connect frequency converter equipment for debugging. At the bottom of the back of the enclosure, there are also five different function wiring ports. These ports use quick-connect plugs with protective covers. The plugs have different colored inner parts for quick connection to the sockets. The sockets are equipped with anti-misinsertion devices to prevent damage to the equipment during use if incorrectly inserted.

[0029] Example 2: Specific implementation steps using the structural form of Example 1.

[0030] 1. Pre-construction preparation

[0031] 1.1 Transport the toolbox to the site and connect it to a reliable grounding point via the “Grounding Socket 1.13” cable to ensure operational safety.

[0032] 1.2 Connect a 220VAC 50Hz power supply via the "Power Inlet Socket 1.17" and cable.

[0033] 1.3 Press “Computer Start Switch 1.10” to turn on the main control computer 2.

[0034] 2. Standardized maintenance

[0035] 2.1 On the central control computer, select the "Inverter" model, and then select the maintenance item (inverter cleaning, fan replacement, module replacement), etc. from the next level menu. The central control computer will provide a list of tools needed for the next maintenance step, illuminate the tool indicator light, and pop out tool storage box 3. After this step is completed, put the tools into tool storage box 3 and push it back into its original position. The central control computer will then provide the next maintenance steps and pop out the corresponding tool storage box 3 until the work is completed. If a mismatch occurs between the tools and the workflow during the operation, the "Manual Tool Retrieval" option can be used to select the tools.

[0036] 3. When using the pre-charge function, ensure that the power cord and grounding wire are properly connected, connect the power supply to the positive DC bus of the inverter through the "DC positive" socket and cable; connect the power supply to the negative DC bus of the inverter through the "DC negative" socket and cable; input the DC generator voltage through the central control computer to perform the pre-charge operation on the inverter.

[0037] 4. During the inverter commissioning process, connect the central control computer to the inverter through the "Network Cable Interface 1.12" or "USB Interface 1.11" in the toolbox, and use the Starter software in the central control computer to commission the inverter.

[0038] 5. If you need to consult the instruction manual, handbook, or maintenance videos during the inverter commissioning process, you can find the relevant information through the "Inverter Commissioning Data" interface.

[0039] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0040] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A frequency converter repair toolbox, characterized in that, The device includes a housing, a main control computer, and a tool storage box. The top of the housing has a handle and the main control computer. Inside the housing is a DC generator. The bottom of the housing has casters. The tool storage box is located on the front of the housing. The back of the housing also has a push-pull handle.

2. The inverter repair toolbox according to claim 1, characterized in that, The enclosure has a quadrilateral structure. The top of the enclosure has a handle and a main control computer screen. Above the main control computer screen, there is a power indicator light and a buzzer alarm. Inside the enclosure are the main unit of the main control computer and a DC generator. The bottom of the enclosure has casters with locking brakes. The casters are omnidirectional. The front of the enclosure has a tool storage box. The upper part of the back of the enclosure has a push-pull handle. The push-pull handle is a two-section retractable handle. When the handle is retracted, it is stored in the handle storage box. The right side of the back of the enclosure has a computer power switch, a USB interface and a network cable interface. The lower part of the back of the enclosure also has five different function wiring ports.

3. The inverter repair toolbox according to claim 2, characterized in that, The handle includes a left handle and a right handle, which are symmetrically arranged on the top of the box. The handle is provided with an insulating and anti-slip layer. The bottom and corners of the handle adopt an arc-shaped structure. The upper part of the box is provided with an arc-shaped groove that matches the handle. The handle is installed in the arc-shaped groove by rotating through a pivot. When using the handle, pressing one end controls the other end to lift and rotate.

4. The inverter repair toolbox according to claim 2, characterized in that, The DC generator is located inside the enclosure, and the DC generator wiring port is located on the lower back of the enclosure. The DC generator wiring port includes a grounding wire port, a DC negative terminal port, a DC positive terminal port, a discharge terminal port, and a power input port. The DC generator can generate DC voltage from 0 to 900V.

5. The inverter repair toolbox according to claim 1, characterized in that, The screen of the main control computer is located on the top of the enclosure. The main unit of the main control computer is connected to the computer power switch, USB interface, and network cable interface. The computer power switch is located on the back of the enclosure. The screen of the main control computer has a standardized operation module, a frequency converter pre-charge module, a frequency converter debugging module, and a frequency converter debugging data module.

6. The inverter repair toolbox according to claim 1, characterized in that, The tool storage box is located on the front of the box. Each tool storage box is equipped with an indicator light with a number. The rear end of the tool storage box is equipped with a limit contact. The inside of the tool storage box is equipped with a model label. The opening of the tool storage box is equipped with an electromagnetic lock pin and a manual lock pin.

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