Concentrator for debugging pumped storage unit

Abstract

The utility model provides a hub for debugging a pumped storage unit. The hub comprises a hub shell; the plurality of groups of wiring modules are arranged, each group of wiring module comprises a pair of input terminals and output terminals which are connected with each other, and the input terminals and the output terminals are symmetrically arranged on two side walls of the hub shell respectively; the mounting seats comprise a first mounting seat and a second mounting seat, and the first mounting seat and the second mounting seat are symmetrically arranged on the two sides of the hub shell; and the wire fixer is mounted on the mounting seat. The hub for debugging the pumped storage unit can be directly connected with equipment in a disc cabinet and a testing device, no wire is exposed, the insulativity is good, the safety is high, and wiring is attractive and neat.

Description

Technical Field

[0001] This application relates to the field of hub equipment technology, and in particular to a hub for commissioning pumped storage units. Background Technology

[0002] Pumped storage power stations have widely distributed control panels, requiring signal transmission from each panel to a central measuring device during commissioning. Currently, two-core cables are used to collect the signals, but the wires are only temporarily connected by twisting them together and wrapping them with insulating tape. This simplistic connection method poses significant safety hazards: the insulating tape is susceptible to moisture, aging, or mechanical damage, leading to insulation failure and potentially causing short circuits, signal interference, or even equipment damage. Utility Model Content

[0003] In view of this, the purpose of this application is to propose a hub for commissioning pumped storage units to solve the problems of unreliable insulation, signal confusion, and messy wiring in the wiring method between the central measuring device and the wiring in the control panel.

[0004] To achieve the above objectives, this application provides a hub for commissioning a pumped storage unit, comprising:

[0005] Hub housing;

[0006] The wiring module is provided in multiple sets. Each set of wiring modules includes a pair of connected input terminals and output terminals. The input terminals and output terminals are symmetrically arranged on both sides of the hub housing.

[0007] The mounting base includes a first mounting base and a second mounting base, which are symmetrically arranged on both sides of the hub housing.

[0008] Cable clamps are installed on mounting bases.

[0009] Optionally, the first mounting base and the input terminal are located on the same side of the hub housing, and the second mounting base and the output terminal are located on the same side of the hub housing.

[0010] Optionally, the bearing surface of the mounting base forms an acute angle with the side wall of the hub housing, and the height of the bearing surface decreases along the direction away from the side wall of the hub housing; wherein, the bearing surface is the side of the mounting base on which the cable holder is installed.

[0011] Optionally, the input and output terminals of each wiring module have the same marking structure, and the marking structures of different wiring modules are different.

[0012] Optionally, the marking structure may be a color mark layer coated on the surface of the input and output terminals or an identification protrusion on one side of the input and output terminals; the color of the color mark layer or the shape of the identification protrusion may be different for different groups of wiring modules.

[0013] Optionally, a resistor is connected in parallel between each set of input and output terminals to obtain the required measurement voltage signal.

[0014] Optionally, a groove is provided on the inner wall of the bottom of the hub housing, and the resistor is located in the groove.

[0015] Optionally, the hub housing has a cover on the inner wall at the bottom that covers the groove.

[0016] Optionally, the hub housing is equipped with a switching device that connects to multiple sets of wiring modules to enable the switching of multiple sets of wiring modules.

[0017] Optionally, the wire retainer includes an input wire retainer and an output wire retainer, with the input wire retainer mounted on the bearing surface of the first mounting base and the output wire retainer mounted on the bearing surface of the second mounting base.

[0018] As described above, the pumped storage unit commissioning hub provided in this application includes a hub housing and wiring modules. Multiple sets of wiring modules are arranged in rows along the length of the hub housing. Each set includes a pair of connected input and output terminals, symmetrically arranged on both sides of the hub housing. The input terminals connect to equipment inside the control panel, and the output terminals connect to testing devices. This hub ensures high safety by eliminating exposed wires when connecting equipment and measuring devices within the control panel. The symmetrical arrangement of input and output terminals on the hub housing facilitates clear wiring module partitioning, reduces the risk of misconnection, and avoids crossed or overlapping wiring, improving wiring neatness. Mounting bases on both sides of the hub housing increase the overall weight of the hub, effectively preventing tilting and improving wire stability. Furthermore, the mounting bases provide installation positions for wire fixers, which secure the wires and prevent accidental detachment from the wiring modules, thus improving the stability of the connection between the wires and the wiring modules. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram showing the hub housing according to an embodiment of this application;

[0021] Figure 2 A schematic diagram of the wiring module is shown for an embodiment of this application;

[0022] Figure 3 This is a schematic diagram showing the inner cover of the hub housing according to an embodiment of this application.

[0023] Reference numerals: 1. Hub housing; 2. Wiring module; 21. Input terminal; 22. Output terminal; 3. Mounting base; 31. First mounting base; 32. Second mounting base; 4. Wire retainer; 41. Input wire retaining clip; 411. Fixing plate; 412. Fixing ring; 413. Extension; 42. Output wire retaining clip; 5. Resistor; 51. Groove; 52. Cover. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0025] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] As mentioned in the background, during the commissioning of pumped storage power stations, due to the dispersed and geographically distant layout of electrical control panels, technicians need to centrally collect and transmit the signal data from the various control panels to a central measuring device for unified monitoring. Currently, the industry standard practice is to use two-core connecting cables for signal aggregation; however, this temporary wiring method has numerous technical flaws and safety hazards.

[0027] From the perspective of connection methods, existing technology mainly relies on manually winding multiple wires together and then simply wrapping them with insulating tape. This non-standardized connection process has significant reliability issues: First, the mechanical strength of the wrapped joints is insufficient, and they are prone to loosening and falling off under conditions of personnel movement or vibration. Second, the insulating tape is easily affected by moisture and ages in the humid environment of the power station, and its insulation performance deteriorates rapidly over time. Once the insulating tape is damaged or aged, the exposed wires may cause phase-to-phase short circuits or short circuits to ground. More seriously, insulation failure under high-voltage conditions may generate arc discharge, which can not only damage precision measuring equipment but also endanger the safety of operators. In addition, the disorderly winding of multiple wires can also generate electromagnetic interference, leading to increased signal crosstalk and measurement errors, directly affecting the accuracy of the commissioning data.

[0028] In summary, the temporary wiring methods currently used in the commissioning of pumped storage power station equipment have significant defects in terms of reliability, safety, and operability. In order to solve the above problems, this application provides a hub for commissioning pumped storage units.

[0029] The following is in conjunction with the appendix Figure 1-3 The embodiments of this application will be described in detail below.

[0030] like Figure 1 and Figure 2 As shown, a hub for commissioning a pumped storage unit includes:

[0031] Hub housing 1;

[0032] Wiring module 2 is provided in multiple sets. Each set of wiring module 2 includes a pair of connected input terminals 21 and output terminals 22. The input terminals 21 and output terminals 22 are symmetrically arranged on the two side walls of the hub housing 1.

[0033] Mounting base 3 includes a first mounting base 31 and a second mounting base 32, which are symmetrically arranged on both sides of the hub housing 1;

[0034] The wire fastener 4 is installed on the mounting base 3.

[0035] In addition, the first mounting base 31 and the input terminal 21 are located on the same side of the hub housing 1, and the second mounting base 32 and the output terminal 22 are located on the same side of the hub housing 1.

[0036] Specifically, the hub housing 1 has a cuboid structure so that multiple sets of wiring modules 2 can be arranged along its length. For example, the hub housing 1 is 200mm long, 20mm wide, and 50mm high. The mounting base 3 includes a first mounting base 31 and a second mounting base 32, respectively located on both sides of the hub housing 1. For example, the first mounting base 31 is 200mm long, 15mm wide, and 30mm high. Both the hub housing 1 and the mounting base 3 are made of insulating, flame-retardant, high-temperature resistant, corrosion-resistant, aging-resistant, and high-strength materials, such as glass fiber reinforced polycarbonate (PC) composite material. The performance indicators of this material are superior to those of conventional engineering plastics, ensuring that the hub can be used reliably for a long time in harsh power plant environments.

[0037] Multiple sets of wiring modules 2 are arranged in rows along the length of the hub housing 1. Each set of wiring modules 2 includes a pair of connected input terminals 21 and output terminals 22. The input terminals 21 and output terminals 22 are symmetrically arranged on both side walls of the hub housing 1. The input terminals 21 connect to the equipment inside the cabinet, and the output terminals 22 connect to the testing device. This hub connects the equipment inside the cabinet and the measuring device without exposed wires, ensuring high safety. The input terminals 21 and output terminals 22 can be direct-insertion terminals, allowing rigid wires or flexible wires with cold-pressed heads to be directly inserted. These direct-insertion terminals have special spring terminals inside; when a wire is inserted, the spring automatically opens and provides sufficient clamping force to ensure good contact with the current bar. When it is necessary to disconnect the wiring, a common screwdriver is used to press the operating lever, the spring opens, and the wire can be separated from the terminal. Furthermore, because the input terminals 21 and output terminals 22 are symmetrically arranged on the hub housing 1, it facilitates the formation of clear wiring module 2 zones, reducing the risk of misconnection and avoiding cross- or overlapping wiring, thus improving the neatness of the wiring. Mounting bases 3 are located on both sides of the hub housing 1, increasing the overall weight of the hub, effectively preventing tilting, and improving cable stability. Additionally, mounting bases 3 provide mounting positions for cable retainers 4, which secure the cables and prevent accidental detachment from the wiring module 2, thus improving the stability of the connection between the cables and the module 2. Mounting bases 3 are arranged on the same side as the corresponding terminals, allowing the cables to be distributed in a straight line and directly secured by the cable retainers 4, preventing cable bending that could shorten cable life and improving the ease of cable securing with the cable retainers 4.

[0038] In some embodiments, such as Figure 1 and Figure 2 As shown, the bearing surface of the mounting base 3 forms an acute angle with the side wall of the hub housing 1, and the height of the bearing surface decreases along the direction away from the side wall of the hub housing 1; wherein, the bearing surface is the side of the mounting base 3 on which the wire fastener 4 is mounted.

[0039] Specifically, the bearing surface of the mounting base 3 forms an acute angle with the side wall of the hub housing 1. For example, the acute angle can be 15°-75°, preferably 30°-45°. The bearing surface decreases in height along the direction away from the side wall of the hub housing 1. The bearing surface is used to install the wire retainer 4. The gradient layout of the bearing surface with decreasing height provides a buffer area for wire bending and reduces the wire breakage rate.

[0040] In some embodiments, the input terminals 21 and output terminals 22 of each group of wiring modules 2 are provided with the same identification structure, and the identification structures between different groups of wiring modules 2 are different.

[0041] In addition, the marking structure is a color mark layer coated on the surface of the input terminal 21 and the output terminal 22 or an identification protrusion provided on one side of the input terminal 21 and the output terminal 22; the color of the color mark layer or the shape of the identification protrusion are different for different groups of wiring modules 2.

[0042] Specifically, the color-coded surface layer is formed by spraying a high-adhesion, wear-resistant paint to prevent paint peeling and wear over long-term use. Different wiring modules 2 have different color codes, such as red, yellow, and green. Identification protrusions are located on the hub housing 1, either above or below the wiring modules 2, for clear identification of the wiring modules 2. These protrusions can be circular, square, triangular, etc., to distinguish different wiring modules 2. In addition, the marking structure can also use laser-etched patterns or text markings. Laser-etched marking structures are permanent and highly precise, and less prone to wear in complex environments.

[0043] In this embodiment, by setting the same identification structure on the input and output terminals 22 of each group of wiring modules 2, and setting different identification structures between different wiring modules 2, the operator can quickly and accurately identify the corresponding input terminal 21 and output terminal 22 during the wiring process, which greatly reduces the probability of incorrect wiring.

[0044] In some embodiments, such as Figure 2 and Figure 3 As mentioned above, a resistor 5 is connected in parallel between each set of input terminals 21 and output terminals 22 to obtain the required measurement voltage signal.

[0045] Additionally, a groove 51 is provided on the inner wall of the bottom of the hub housing 1, and the resistor 5 is located in the groove 51. A cover 52 is provided on the inner wall of the bottom of the hub housing 1 to cover the groove 51.

[0046] Specifically, a resistor 5 is connected in parallel between each set of input terminals 21 and output terminals 22. By measuring the voltage across resistor 5 using a voltage monitoring device, a voltage signal related to the current under test can be indirectly obtained, thereby improving the richness of the measurement data. Resistor 5 is a removable resistor and can be removed when not in use.

[0047] In this embodiment, a resistor 5 is connected in parallel between each set of input terminals 21 and output terminals 22 to convert current signals into voltage signals, thereby improving the richness of measurement data and enhancing the monitoring and evaluation capabilities of the electrical system and equipment operating status. The resistor 5 is set in the groove 51 to save internal space of the hub housing 1 and to prevent the resistor 5 from being accidentally bumped while protruding from the inner wall of the hub housing 1. The cover 52 covers the groove 51, which on the one hand provides physical protection for the resistor 5, preventing dust, moisture and other impurities from corroding it and extending the service life of the resistor 5; on the other hand, it reduces the risk of the resistor 5 being damaged by external impacts and enhances the overall stability of the equipment.

[0048] In some embodiments, the hub housing 1 is provided with a switching device, which is connected to multiple sets of wiring modules 2 to realize the switching of multiple sets of wiring modules 2.

[0049] In this embodiment, the hub housing 1 integrates a switching device (such as a relay group, solid-state switch or miniature circuit breaker). This device controls the synchronous switching of multiple wiring modules 2 through electrical connection to improve the timeliness and efficiency of the test system control. In addition, during equipment testing interruptions, the hub can be disconnected with one key to separate the two ends, ensuring that the floating potential will not damage the debugging equipment chip.

[0050] In some embodiments, such as Figure 1 and Figure 2 As shown, the wire fastener 4 includes an input wire fastening clip 41 and an output wire fastening clip 42. The input wire fastening clip 41 is installed on the bearing surface of the first mounting base 31, and the output wire fastening clip 42 is installed on the bearing surface of the second mounting base 32.

[0051] Specifically, both the input wire clamp 41 and the output wire clamp 42 include a fixing plate 411, a fixing ring 412, and an extension portion 413. The fixing plate 411 is connected to the bearing surface, and the fixing ring 412 is installed on the side of the fixing plate 411 away from the bearing surface. The fixing ring 412 has an opening, and the extension portion 413 is located at the opening end of the fixing ring 412. The fixing plate 411 is used to install the clamp on the mounting base 3, the fixing ring 412 is used to fix the wire, and the extension portion 413 can guide the wire into the fixing ring 412, thereby improving the fixing efficiency of the fixing ring 412 for the wire. The opening of the fixing ring 412 is also provided with a quick-locking mechanism, such as a ratchet locking mechanism, to tighten the wire and further improve the stability of the wire.

[0052] In this embodiment, the input wire fixing clip 41 and the output wire fixing clip 42 are respectively installed on the bearing surface of the first mounting base 31 and the bearing surface of the second mounting base 32, so as to distinguish and manage the input wire and the output wire.

[0053] In summary, the pumped storage unit commissioning hub in this application has the following effects:

[0054] (1) In this application, multiple sets of wiring modules 2 are arranged in a row along the length of the hub housing 1. Each set of wiring modules 2 includes a pair of connected input terminals 21 and output terminals 22. The input terminals 21 and output terminals 22 are symmetrically arranged on the two side walls of the hub housing 1. The input terminals 21 are connected to the equipment in the cabinet, and the output terminals 22 are connected to the testing device. There are no exposed wires when connecting the equipment in the cabinet and the measuring device through this hub, which is highly safe.

[0055] (2) The input terminals 21 and output terminals 22 in this application are symmetrically arranged on the hub housing 1, which facilitates the formation of clear wiring module 2 partitions, reduces the risk of misconnection, and avoids cross or overlapping wiring, thus improving the neatness of the wiring. The mounting base 3 is set on both sides of the hub housing 1, which can increase the overall weight of the hub, effectively prevent the hub from tilting, and improve the stability of the wires. In addition, the mounting base 3 provides an installation position for the wire fixation device 4, which fixes the wires and prevents the wires from being accidentally pulled and causing them to detach from the wiring module 2, thereby improving the stability of the connection between the wires and the wiring module 2.

[0056] (3) The mounting base 3 in this application is located on both sides of the hub housing 1, which can increase the overall weight of the hub, effectively prevent the hub from tilting, and improve the stability of the wire. In addition, the mounting base 3 provides an installation position for the wire fixer 4. The wire fixer 4 fixes the wire, preventing the wire from being accidentally pulled and causing the wire to detach from the wiring module 2, thus improving the stability of the connection between the wire and the wiring module 2.

[0057] (4) The hub housing 1 in this application integrates a switching device. This device controls the synchronous switching of multiple wiring modules 2 through electrical connection to improve the timeliness and efficiency of the test system control. In addition, during the equipment test interruption, the hub can be disconnected with one key to achieve separation of the two ends, ensuring that the floating potential will not damage the debugging equipment chip.

[0058] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application is limited to these examples; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0059] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully within the understanding of those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0060] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures may use the embodiments discussed.

[0061] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the claims of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A hub for pump storage unit commissioning, characterized by, The utility model relates to a kind of concentrators for debugging pumped storage unit, including: Concentrator shell (1); Wiring module (2) is provided with multiple groups, and each group of wiring module (2) includes a pair of symmetrical input terminal (21) and output terminal (22) connected, and input terminal (21) and output terminal (22) are respectively arranged on the two side walls of concentrator shell (1) symmetrically; Mounting seat (3) includes first mounting seat (31) and second mounting seat (32), and first mounting seat (31) and second mounting seat (32) are symmetrically arranged on the two sides of concentrator shell (1); Electric wire fixer (4) is installed on mounting seat (3).

2. The hub for commissioning a pumped storage unit of claim 1, wherein First mounting seat (31) and input terminal (21) are located on the same side of concentrator shell (1), and second mounting seat (32) and output terminal (22) are located on the same side of concentrator shell (1).

3. The concentrator for debugging pumped storage unit according to claim 2, wherein: The bearing surface of the mounting seat (3) forms an acute angle with the side wall of the concentrator shell (1), and the bearing surface decreases in height in the direction away from the side wall of the concentrator shell (1); wherein the bearing surface is the side surface of the mounting seat (3) on which the electric wire fixer (4) is installed.

4. The concentrator for debugging pumped storage unit according to claim 1, wherein: The input terminal (21) and the output terminal (22) of each group of wiring module (2) are provided with the same identification structure, and the identification structures of different groups of wiring module (2) are different.

5. The hub for commissioning of a pumped storage unit according to claim 4, wherein The identification structure is a color mark layer coated on the surface of the input terminal (21) and the output terminal (22) or an identification protrusion provided on one side of the input terminal (21) and the output terminal (22); the color of the color mark layer or the shape of the identification protrusion of different groups of wiring module (2) are different.

6. The hub for commissioning a pumped storage unit of claim 1, wherein A resistance (5) is connected in parallel between the input terminal (21) and the output terminal (22) of each group to obtain a required measurement voltage signal.

7. The hub for commissioning a pumped storage unit of claim 6, wherein, A groove (51) is provided on the inner wall of the bottom of the concentrator shell (1), and the resistance (5) is located in the groove (51).

8. The hub for commissioning a pumped storage unit of claim 7, wherein, A cover (52) is provided on the inner wall of the bottom of the concentrator shell (1) to cover the groove (51).

9. The hub for commissioning a pumped storage unit of claim 1, wherein, A switching device is provided in the concentrator shell (1), and the switching device is connected to multiple groups of wiring module (2) to realize the switching of multiple groups of wiring module (2).

10. The hub for commissioning a pumped storage unit of claim 3, wherein, The electric wire fixer (4) includes an input electric wire fixing clamp (41) and an output electric wire fixing clamp (42), the input electric wire fixing clamp (41) is installed on the bearing surface of the first mounting seat (31), and the output electric wire fixing clamp (42) is installed on the bearing surface of the second mounting seat (32).

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