Aging cabinet with SVG module tool test function

Abstract

The utility model belongs to the technical field of distribution boxes, and relates to an aging cabinet with an SVG module tool test function. The base is arranged at the bottom of the box body; the first aging cabin is arranged on the base; the second aging cabin is arranged on the first aging cabin; the control cabinet is arranged on the second aging cabin, and the control cabinet is provided with a touch screen; and the adapter plate is provided with a sampling module and a communication module, and the adapter plate is used for connecting and processing the signal line led out by the SVG module and leading out a control signal line of the touch screen. In the friction process of the SVG module on the sliding rail, the paint surface of the surface layer is not scratched, so that the appearance of the product is intact when the product leaves the factory; efficient heat dissipation of the aging cabinet in the operation process is ensured, and the appearance is attractive; according to the invention, the reuse rate of large-scale testing and aging to a site in the mass production process can be improved, the manpower and time cost consumed in the intermediate circulation process of testing and aging can be reduced, and zero output of reactive current of the SVG module to a power grid can be realized in the aging process.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, and more specifically to an aging cabinet with an SVG module tooling test function. Background Art

[0002] In order to reduce the space and time consumption of the testing and aging process during the mass production of SVG (Static Var Generator, SVG for short), improve the production efficiency of SVG modules, and achieve zero reactive current output during the aging process, comprehensive testing and aging equipment for SVG modules are constantly emerging in applications.

[0003] With the continuous promotion of the national standard Q / GDW 11221-2023 "Technical Specifications for Low-voltage Integrated Distribution Boxes", 2U standard-sized SVG modules will gradually become the mainstream products recognized by the low-voltage integrated distribution box market. At present, the market lacks a device with both testing and aging functions for 2U standard SVG modules. Utility Model Content

[0004] The technical problem to be solved by the utility model is that there is a lack of a device with both testing and aging functions for 2U standard SVG modules in the market. In view of the above-mentioned defects of the prior art, an aging cabinet with SVG module tooling testing function is provided, including:

[0005] Box;

[0006] A base, arranged at the bottom of the box;

[0007] A first aging chamber is provided on the base;

[0008] A second aging chamber, arranged on the first aging chamber;

[0009] A control cabinet is arranged above the second aging chamber, and the control cabinet is provided with a touch screen;

[0010] The adapter board is provided with a sampling module and a communication module. The adapter board is used to connect and process the signal lines led out by the SVG module, and to lead out the control signal lines of the touch screen to the outside.

[0011] Preferably, the sampling module comprises: a current transformer, a sampling circuit, a signal processing circuit and an ADC which are electrically connected.

[0012] Preferably, the communication module comprises: a microprocessor and a communication interface circuit.

[0013] Preferably, a heat dissipation duct is provided on the box body.

[0014] Preferably, the first aging chamber is provided with a first door, and the first door is movably connected to the first aging chamber via a first detachable component.

[0015] Preferably, the second aging chamber is provided with a second door, and the second door is movably connected to the second aging chamber via a second detachable component.

[0016] Preferably, universal casters are provided under the base.

[0017] Preferably, the aging cabinet is further provided with a slide rail, and the slide rail is arranged in the first aging chamber and the second aging chamber parallel to the horizontal plane, and the slide rail is used for the SVG module to slide into or out of the interior of the aging cabinet.

[0018] Preferably, the number of the SVG modules accommodated in the first aging chamber is the same as the number of the SVG modules accommodated in the second aging chamber.

[0019] Preferably, the slide rail is made of POM material.

[0020] The implementation of the aging cabinet with SVG module tooling test function of the utility model has the following beneficial effects:

[0021] First, batch aging and testing functions are taken into account at the same time, reducing costs and increasing efficiency; it has the test function of signal lines such as SVG module communication. It can test the signal lines while aging the SVG module, and can age multiple SVG modules at the same time, saving manpower, site and time costs;

[0022] Second, it does not pollute the power grid: the principle of inductive reactive power and capacitive reactive power canceling each other out is adopted, so that even if the aging cabinet is fully loaded, the reactive current injected into the power grid can be close to zero;

[0023] Thirdly, the structure is novel, practical and beautiful. It adopts POM material slide rails, stacked vents and detachable aging compartment doors, which not only solve practical problems but also ensure the beauty of the structure's appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. The utility model will be further described below in combination with the drawings and embodiments. In the drawings:

[0025] Figure 1It is a three-dimensional schematic diagram of an aging cabinet with SVG module tooling test function of the utility model;

[0026] Figure 2 This is the main view of the aging cabinet with SVG module tooling test function of the utility model;

[0027] Figure 3 It is a side view of the aging cabinet with SVG module tooling test function of the utility model;

[0028] Figure 4 This is a rear view of the aging cabinet with SVG module tooling test function of the utility model;

[0029] Figure 5 It is a schematic diagram of loading and unloading the first hatch and the second hatch in the aging cabinet with SVG module tooling test function of the utility model;

[0030] Figure 6 This is a schematic diagram of the power line connection of the aging cabinet with SVG module tooling test function of the utility model;

[0031] Figure 7 It is a signal line wiring diagram of the aging cabinet with SVG module tooling test function of the utility model.

[0032] In the figure, 1-box, 2-front cover, 3-first aging chamber, 4-second aging chamber, 5-control cabinet, 6-touch screen, 7-cooling duct, 8-universal caster, 9-SVG module, 10-product test status light, 11-ammeter, 12-LOGO, 13-equipment name, 14-covering plate, 15-side covering plate, 16-door panel, 17-equipment power supply port, 18-emergency stop button. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0036] Figure 1 It is a three-dimensional schematic diagram of an aging cabinet with SVG module tooling test function of the utility model; Figure 2 This is the main view of the aging cabinet with SVG module tooling test function of the utility model; Figure 3 This is a left view of the aging cabinet with SVG module tooling test function of the utility model; Figure 4 This is a right view of the aging cabinet with SVG module tooling test function of the utility model; Figure 5 This is a schematic diagram of the installation and removal of the first and second hatches in the aging cabinet with SVG module tooling test function of the utility model. Figure 1-Figure 5 In the aging cabinet with SVG module tooling test function provided in the first embodiment of the utility model, at least includes a box body 1; a base 2, arranged at the bottom of the box body 1; a first aging chamber 3, arranged on the base 2; a second aging chamber 4, arranged on the first aging chamber 3; a control cabinet 5, arranged on the second aging chamber 4, the control cabinet 5 is provided with a touch screen 6; an adapter board, provided with a sampling module and a communication module, the adapter board is used to connect and process the signal line led out by the SVG module 9, and lead out the control signal line of the touch screen 6 to the outside. The SVG module 9 is the product to be aged.

[0037] During specific implementation, the utility model is provided with a product test status light 10, a LOGO 12, a device name 13, a sealing plate 14, a side sealing plate 15, a door panel 16, a device power supply port 17, and an emergency stop button 18 on the aging cabinet with the SVG module tooling test function. The product test status light 10 can be respectively provided on the first aging chamber 3 and the second aging chamber 4, and is respectively used to display the aging status of the product to be aged. The sealing plates 14 are respectively provided on the first aging chamber 3 and the second aging chamber 4, and the sealing plates 14 can cover the first aging chamber 3 and the second aging chamber 4, respectively, to play a role in dust removal and cleaning. The side sealing plates 15 are provided on the side of the aging cabinet with the SVG module tooling test function of the utility model. When the aging cabinet with the SVG module tooling test function of the utility model is not in working state, the side of the aging cabinet is covered to play a role in dust removal and cleaning. The door panel 16 is arranged at the back of the aging cabinet with SVG module tooling test function of the utility model. When the aging cabinet with SVG module tooling test function of the utility model is not in working state, the back of the aging cabinet is covered to play the role of dust removal and cleaning. The equipment power supply port 17 is arranged at the back of the aging cabinet with SVG module tooling test function of the utility model, and the mains power can be connected to the aging cabinet to supply power. The emergency stop button 18 is arranged on the control cabinet, which is used for emergency stop processing of the aging cabinet.

[0038] The sampling module includes: a current transformer, a sampling circuit, a signal processing circuit and an ADC which are electrically connected.

[0039] The main function of CT (Current Transformer) sampling is to accurately measure and monitor the current in the power system to ensure that the SVG module can work stably and reliably during long-term operation.

[0040] Each layer of the aging chamber is equipped with A\B\C three-phase compensation sampling CT, which can be used as a load layer or compensation layer independently. When used as a load layer, the signal sampled by the CT is used as the compensation control signal of another compensation layer. These CT sampling can fully reflect the state of the three-phase current, thereby realizing accurate monitoring of the working state of the SVG module. Through the CT on the upper and lower layers of the total bus terminal row, the current meter current reading can be given, and abnormalities can be discovered in time.

[0041] The sampling circuit is the core part of CT sampling. Its main function is to convert the high voltage and high current of the power system into a low voltage and low current analog signal for subsequent circuit processing. The design of the sampling circuit needs to take into account factors such as the current measurement range, accuracy, linearity, etc., as well as the circuit's anti-interference ability and stability.

[0042] The sampled analog signal needs to be filtered, amplified and converted by the signal processing circuit to eliminate interference signals and improve signal quality. The design of the signal processing circuit needs to take into account factors such as the dynamic range, noise level, and distortion of the signal to ensure that the processed signal can truly reflect the changes in the current.

[0043] After signal processing, the analog signal needs to be converted into a digital signal for subsequent data processing and analysis. The data acquisition and processing part usually includes an analog-to-digital converter (ADC) and a microprocessor or digital signal processor (DSP). The ADC is responsible for converting the analog signal into a digital signal, while the microprocessor or DSP is responsible for processing, analyzing and storing the collected data.

[0044] By analyzing the collected data, the working status of the SVG module can be monitored in real time, including the current size, waveform, phase and other information. At the same time, by comparing and analyzing historical data, the current change trend and abnormal conditions can be found, providing a basis for fault warning and fault diagnosis.

[0045] CT sampling has the following advantages:

[0046] High precision: CT sampling can achieve high-precision measurement of current, providing a strong guarantee for the precise control and stable operation of the SVG module.

[0047] High reliability: CT sampling technology has high anti-interference ability and stability, and can work normally in harsh power environments.

[0048] Strong real-time performance: By real-time monitoring and analysis of current data, abnormal situations can be discovered in time and corresponding measures can be taken to avoid equipment damage and accidents.

[0049] Strong scalability: The CT sampling method can be combined with other power system monitoring and control technologies to achieve more comprehensive and intelligent power system management and control.

[0050] CT sampling plays a vital role in the aging cabinet of SVG module tooling test and aging function. CT sampling can realize accurate measurement and monitoring of power system current, providing strong support for the stable operation of SVG modules and the safe and reliable operation of power systems.

[0051] The communication module includes: a microprocessor and a communication interface circuit. Communication interface circuits include RS-485, Ethernet, etc. These interface circuits allow the SVG module to connect to external devices or networks to send and receive data. In addition, the communication module must also have strong anti-interference capabilities and high stability to cope with complex industrial environments.

[0052] The communication between multiple SVG modules usually adopts a master-slave structure or a peer-to-peer structure. In the master-slave structure, one module acts as the master node and is responsible for coordinating the communication of other slave nodes; in the peer-to-peer structure, all modules are equal and can communicate with each other. Depending on the actual application scenario, you can choose a suitable network topology.

[0053] The communication process between multiple SVG modules is:

[0054] When communication between SVG modules is required, the initiator module encapsulates the data to be transmitted according to the predetermined communication protocol, and then sends it to the receiver module through the communication interface. After receiving the data, the receiver module will decapsulate it and extract useful information for processing. Similarly, the receiver can also send data to the initiator to achieve two-way communication.

[0055] In the communication process, data processing is the core link. This includes data encapsulation and decapsulation, verification and error correction, storage and forwarding, etc. Encapsulation and decapsulation are to ensure that data can be correctly transmitted between different modules; verification and error correction are to find and correct possible transmission errors; storage and forwarding are to ensure that data can be correctly saved and transmitted when needed.

[0056] For the communication between multiple SVG modules, synchronization and coordination are crucial. Through the communication module, the functions of state synchronization and parameter synchronization between modules can be realized, thus ensuring the stable operation of the entire SVG system. In addition, the communication module can also coordinate and control each module according to actual needs to achieve optimized operation.

[0057] During the aging process, the module sampling function, communication function, etc. can also be verified. Faced with a reactive power to be compensated that exceeds the capacity of a single unit, the monitoring screen can replace the computer as the host computer, communicate with each module, and allocate the compensation capacity of each module. Once a problem occurs in the communication function of a module, the overall compensation effect will be poor. The final result is that the entire aging cabinet will inject a large reactive current into the power grid, which can be clearly reflected in the reading of the ammeter 11 above the aging cabinet.

[0058] The basic functions of the SVG module can also be verified during the aging process without spending extra manpower, space, and time to verify these functions, thus reducing costs and increasing efficiency, killing two birds with one stone.

[0059] The internal signal lines are wired using an adapter board. Each SVG module leads out a group of signal lines to the adapter board, which then connects and processes these signal lines and leads out the control signal lines of the large screen. By processing the signal lines through the adapter board, it is possible to avoid the internal signal lines from being tangled and interfering with the power lines. At the same time, due to the restrictions of national standards, the signal port will not be changed. With the development of subsequent functions, the functions that need to be verified increase, and only the adapter board needs to be upgraded. Upgrading the adapter board is relatively easy, which ensures the scalability of the aging cabinet.

[0060] In order to ensure the heat dissipation when the aging cabinet is fully loaded, in specific implementation, a plurality of staggered heat dissipation ducts 7 can be provided on the cabinet body 1, which can take into account both practicality and aesthetics.

[0061] In specific implementation, the first aging chamber 3 is provided with a first door, and the first door is movably connected to the first aging chamber 3 through a first detachable component. The first detachable component can be a screw, a buckle, etc.

[0062] The second aging chamber 4 is provided with a second door, and the second door is movably connected to the second aging chamber 4 through a second detachable component. The second detachable component can be a screw, a buckle, etc.

[0063] The false panel structure design of the first hatch and the second hatch, when the aging cabinet is not in use, the first hatch and the second hatch will be covered with false panels, and the whole cabinet will be complete and beautiful in visual effect. The false panel can maximize the use of the space of the aging cabinet, eliminating the extra space required for opening and closing around the axis. The disassembled first hatch and the second hatch can be stored in the storage space of the base 2, and will not take up extra space.

[0064] Universal casters 8 are provided below the base 2. With the universal casters 8, the utility model aging cabinet is convenient to move.

[0065] During specific implementation, the aging cabinet is also provided with a slide rail, which can be arranged in the first aging chamber and the second aging chamber parallel to the horizontal plane. For example, it can be arranged on the side wall of the aging cabinet, and the slide rail is used for the SVG module 9 to slide in or out of the interior of the aging cabinet. The slide rail can also be arranged on the front and rear walls of the aging cabinet according to actual needs. In the aging cabinet, the slide rail is arranged on the entry and exit path of the SVG module 9, so that the SVG module 9 can easily slide in and out of the aging cabinet along the slide rail. Such a design not only simplifies the installation and disassembly process of the module, but also greatly improves work efficiency. In this embodiment, five slide rails are arranged in each aging chamber. The number of slide rails provided can be determined according to actual needs, and the number of slide rails is not limited here.

[0066] The functions of the slide rail are:

[0067] Improve work efficiency: The design of the slide rail makes the installation and removal of the SVG module simple and quick. The staff only needs to gently push the module into or pull it out of the slide rail to complete the installation or removal, which greatly reduces the cumbersome bolt fixing steps in the traditional method, thus significantly improving work efficiency.

[0068] Ensure module safety: The smooth sliding characteristics of the slide rail ensure the stability of the SVG module when entering and exiting the aging cabinet, avoiding module damage or personal injury caused by improper operation. At the same time, the design of the slide rail also reduces the friction between the module and the aging cabinet, further extending the service life of the module.

[0069] Easy maintenance and inspection: The presence of the slide rail allows staff to easily maintain and inspect the SVG module. When a module fails or needs regular inspection, staff can quickly remove the module from the aging cabinet and perform necessary repairs or replacements, greatly improving the convenience of maintenance work.

[0070] Strong versatility: It can be used between 2U hot-swappable models of different capacities, further enhancing the versatility of the aging cabinet.

[0071] In specific implementation, the slide rail can be made of POM material. POM material, polyoxymethylene, also known as acetal resin, polyoxymethylene, polyacetal, is a thermoplastic crystalline polymer, known as "super steel" or "sport steel". The advantages are high strength and hardness, and it is not easy to deform under the weight of the SVG module, ensuring the stability and reliability of the product; high processing accuracy, which can effectively improve the accuracy of plug-in terminal docking; the material surface is relatively smooth, and it is not easy to scratch the paint surface of the SVG module.

[0072] POM material also has excellent chemical corrosion resistance. It can resist corrosion from a variety of chemical substances, including acids, alkalis, salts, etc. In addition, POM material also has good thermal stability and dimensional stability. In a high temperature environment, POM material is not easy to deform, expand or shrink, which provides a strong guarantee for its application under high temperature conditions. At the same time, the dimensional stability of POM material also gives it a unique advantage in the manufacture of precision parts, and can meet the high-precision and high-demand processing needs. It is worth mentioning that POM material also has excellent processing performance. It can be processed through a variety of molding processes such as injection molding and extrusion, making the production process more flexible and efficient. This can not only reduce production costs, but also improve production efficiency and meet market demand.

[0073] The number of SVG modules accommodated in the first aging chamber 3 is the same as the number of SVG modules accommodated in the second aging chamber 4. When aging the SVG modules 9, the SVG modules in the lower layer of the aging chamber can be used as full loads to generate inductive reactive current, which is compensated by the SVG modules in the upper layer of the aging chamber. If the number of SVG modules in the upper and lower layers is equal, the reactive current injected into the power grid after compensation is theoretically zero, and is actually very small and will not interfere with the power grid.

[0074] Figure 6 This is a schematic diagram of the power line connection of the aging cabinet with SVG module tooling test function of the utility model. Figure 6 As shown, the ten SVG modules to be tested are divided into two groups of five, which can be set as load group and compensation group during testing. The load group emits inductive reactive power during testing, and the compensation group emits capacitive reactive power during testing. Each module has a pair of A, B, C, and N power lines, and the power lines of each group of five modules are all connected in parallel. The output of the load group CT is used as the compensation control amount of the compensation group module. Finally, the two groups of power lines are connected together to allow the inductive reactive power and the capacitive reactive power to offset each other, and the reactive current injected into the power grid is close to zero.

[0075] Figure 7 This is a signal line wiring diagram of the aging cabinet with SVG module tooling test function of the utility model. Figure 7 As shown, the CT line is connected in series through five SVG modules in the compensation group. The collected compensation amount is communicated with the monitoring screen as the host computer through the 485_2 channel. The host computer allocates the compensation amount of each module. The 24V signal is the power supply signal of the monitoring screen, and DI+ / DI- is the emergency stop signal of the aging cabinet.

[0076] Through the design of the above embodiments, the utility model has the following beneficial effects: batch aging and testing functions are taken into consideration at the same time, thus reducing costs and increasing efficiency; the utility model has the testing function of signal lines such as SVG module communication, and the signal lines can be tested while aging the SVG modules, and multiple SVG modules can be aged at the same time, thus saving manpower, site and time costs; the utility model does not pollute the power grid: the principle of mutual offset of inductive reactive power and capacitive reactive power is adopted, so that even if the aging cabinet is fully loaded, the reactive current injected into the power grid can be close to zero; the utility model has a novel structure, is practical and beautiful, and adopts slide rails made of POM material, stacked vents and detachable aging chamber doors, which solve practical problems while ensuring the beauty of the structural appearance.

[0077] The present invention is described according to specific embodiments, but those skilled in the art should understand that various changes and equivalent substitutions can be made without departing from the scope of the present invention. In addition, in order to adapt to specific occasions of the present invention technology, many modifications can be made to the present invention without departing from its protection scope. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all embodiments that fall within the scope of protection of the claims.

Claims

1. An aging cabinet with SVG module tooling test function, characterized in that: include: Box; A base, arranged at the bottom of the box; A first aging chamber is provided on the base; A second aging chamber, arranged on the first aging chamber; A control cabinet is arranged above the second aging chamber, and the control cabinet is provided with a touch screen; The adapter board is provided with a sampling module and a communication module. The adapter board is used to connect and process the signal lines led out by the SVG module, and to lead out the control signal lines of the touch screen to the outside.

2. The aging cabinet with SVG module tooling test function according to claim 1 is characterized in that: The sampling module includes: a current transformer, a sampling circuit, a signal processing circuit and an ADC which are electrically connected.

3. The aging cabinet with SVG module tooling test function according to claim 1 is characterized in that: The communication module includes: a microprocessor and a communication interface circuit.

4. The aging cabinet with SVG module tooling test function according to claim 1 is characterized in that: The box body is provided with a heat dissipation duct.

5. The aging cabinet with SVG module tooling test function according to claim 1 is characterized in that: The first aging chamber is provided with a first door, and the first door is movably connected to the first aging chamber via a first detachable component.

6. The aging cabinet with SVG module tooling test function according to claim 1 is characterized in that: The second aging chamber is provided with a second door, and the second door is movably connected to the second aging chamber via a second detachable component.

7. The aging cabinet with SVG module tooling test function according to any one of claims 1 to 6, characterized in that: Universal casters are arranged under the base.

8. The aging cabinet with SVG module tooling test function according to claim 7 is characterized in that: The aging cabinet is further provided with a slide rail, which is arranged in the first aging chamber and the second aging chamber parallel to a horizontal plane, and is used for the SVG module to slide into or out of the interior of the aging cabinet.

9. The aging cabinet with SVG module tooling test function according to claim 7, characterized in that: The number of the SVG modules accommodated in the first aging chamber is the same as the number of the SVG modules accommodated in the second aging chamber.

10. The aging cabinet with SVG module tooling test function according to claim 8, characterized in that: The slide rail is made of POM material.

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