Magnetic core fixing structure for uninterruptible power supply and uninterruptible power supply

Abstract

The utility model relates to a magnetic core fixing structure for an uninterruptible power supply and the uninterruptible power supply. The uninterruptible power supply is provided with a machine shell, and a cable is connected with the machine shell. The magnetic core fixing structure comprises at least one magnetic core arranged around the cable; and the fixing piece is arranged on the shell and is provided with a limiting structure for mounting the at least one magnetic core.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply equipment especially relates to the magnetic core fixing structure for uninterrupted power supply and uninterrupted power supply. BACKGROUND

[0002] Uninterruptible power supply (UPS) is a kind of energy storage device that provides backup ac power supply for load equipment under the condition of abnormal power grid to maintain the normal operation of load equipment. Under normal circumstances, uninterrupted power supply is used to maintain the uninterrupted operation of key equipment such as computer or switch and precision instrument, to prevent computer data loss, telephone communication network interruption or instrument out of control. For example, data center power supply system is a typical UPS system, in which the main power supply of city electricity can provide three-phase alternating current (AC) electric power to one or more UPS systems supporting key data center load. When the main power supply of city electricity is interrupted, the data center UPS can undertake the function of power supply to key load.

[0003] UPS can be roughly divided into tower and modular machine. Tower generally needs to occupy a separate storage space, and modular machine can be installed in a standard cabinet to adapt to the overall layout requirements of machine room space.

[0004] Regardless of the structure of UPS, filter magnetic core needs to be configured to suppress noise propagation. The usual way is to pass one or more magnetic cores through a cable bundle. According to the need, the cable can also be wound several turns on the magnetic core. The magnetic core wrapped on the cable bundle occupies a larger space inside and outside the UPS terminal port, and is also easy to block the air outlet cooling channel behind the UPS, thereby affecting the temperature rise. In order to avoid the magnetic core sliding along the cable bundle, additional binding wire needs to be added to fix the magnetic core, which leads to the increase of material cost. The winding method of binding wire usually depends on personal preference and experience, and is easy to appear in disorder.

[0005] Therefore, there is a demand in the industry to improve the magnetic core arrangement of UPS to improve user experience and reduce cost. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of magnetic core fixing structure for uninterrupted power supply, at least can solve part of the above technical problems.

[0007] The utility model also aims at providing a kind of uninterrupted power supply applied to the improved magnetic core fixing structure.

[0008] According to one aspect of the present invention, a magnetic core fixing structure for an uninterruptible power supply is provided, wherein the uninterruptible power supply has a housing and a cable is connected to the housing, the magnetic core fixing structure comprising: at least one magnetic core arranged around the cable; and a fixing member disposed in the housing and having a limiting structure for mounting the at least one magnetic core.

[0009] This solution's core fixing structure provides a standardized installation method for cable cores, avoiding random and messy core installation. Furthermore, integrating the core into the chassis allows it to still function as a filter along the current transmission path while avoiding the exhaust ventilation channel at the rear of the UPS, thus not affecting normal UPS operation and eliminating the need for binding wires to secure the core. This integrated design ensures the core is essentially flush with the chassis, saving space and resulting in a cleaner overall appearance for the UPS.

[0010] In some embodiments, the fastener is configured as a terminal having a first wiring portion and a second wiring portion arranged side-by-side, wherein the first wiring portion is adapted to connect a first cable and the second wiring portion is adapted to connect a second cable to form a current transmission path, and the at least one magnetic core is mounted on the terminal and surrounds the current transmission path. This integrates the magnetic core into the terminal, resulting in a simple structure and ease of organization. The magnetic core can filter the cable in close contact with the terminal.

[0011] In some embodiments, at least one of the first wiring portion and the second wiring portion forms a stepped structure along its outer periphery, and the at least one magnetic core includes a first magnetic core sleeved on the at least one wiring portion and embedded in the stepped structure.

[0012] In some embodiments, the at least one magnetic core includes a second magnetic core sleeved on at least one of the first wiring portion and the second wiring portion, the second magnetic core including a body and an insulating outer shell that completely encloses the body and separates the body from the at least one wiring portion.

[0013] In some embodiments, the body is configured as an annular shape, and the insulating housing is formed with a plurality of intersecting partitions extending between the inner peripheral walls of the body, which enclose a plurality of compartments corresponding to a plurality of connectors of the terminals.

[0014] In some embodiments, at least one of the first wiring portion and the second wiring portion forms a surrounding groove, and the at least one magnetic core includes a first segment and a second segment that can be inserted into the surrounding groove relative to each other to surround the current transmission path.

[0015] In some embodiments, at least one of the first wiring portion and the second wiring portion forms a space for receiving a plurality of connectors of the terminal and a movable cover for opening and closing the space. The at least one wiring portion also forms a surrounding groove, a portion of which is disposed within the movable cover. The at least one magnetic core includes a third segment and a fourth segment that can be inserted into the surrounding groove relative to each other to surround the current transmission path.

[0016] In some embodiments, the first wiring portion and the second wiring portion are detachably connected, wherein each of the first wiring portion and the second wiring portion is provided with two magnetic cores, which are arranged at intervals along the current transmission path.

[0017] In some embodiments, the terminal is an integral piece and the first wiring portion and the second wiring portion are fixed relative to each other, wherein the first wiring portion and the second wiring portion are each provided with two magnetic cores, and the two magnetic cores are arranged at intervals along the current transmission path.

[0018] In some embodiments, the fastener is constructed as at least one of the following: a recessed groove in the housing, a buckle protruding from the housing, a support plate extending from the housing, the at least one magnetic core being embedded in the groove or buckle, or fixed to the support plate, and the cable passing through the at least one magnetic core.

[0019] According to another aspect of the present invention, an uninterruptible power supply is provided, including the aforementioned magnetic core fixing structure.

[0020] Other features and advantages of this invention will partly be apparent to those skilled in the art upon reading this application, and partly will be described below in conjunction with the accompanying drawings in the detailed description. Attached Figure Description

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of a UPS according to an embodiment of the present invention;

[0023] Figure 2 This is a partial schematic diagram of a UPS according to an embodiment of the present invention, wherein the female terminal and the male terminal are joined together;

[0024] Figure 3 This is a partial schematic diagram of a UPS according to an embodiment of the present invention, wherein the female terminals and male terminals are separated from each other;

[0025] Figure 4 This is a schematic diagram of a power module according to an embodiment of the present invention;

[0026] Figure 5 This is a partially exploded view of a power module according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the output female terminal according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the female terminal of the battery according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of a first type of magnetic core according to an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of a second type of magnetic core according to an embodiment of the present invention;

[0031] Figure 10 This is a side view of a second type of magnetic core according to an embodiment of the present invention;

[0032] Figure 11 yes Figure 10 A cross-sectional view of the magnetic core along the CC direction;

[0033] Figure 12 This is a cross-sectional view of the output female terminal and its magnetic core according to an embodiment of the present invention;

[0034] Figure 13 This is a partial schematic diagram of a cabinet according to an embodiment of the present utility model;

[0035] Figure 14 This is a partially exploded view of the cabinet according to an embodiment of the present utility model;

[0036] Figure 15 This is a schematic diagram of the input male terminal according to an embodiment of the present invention;

[0037] Figure 16 This is a schematic diagram of the terminal block and its magnetic core according to an embodiment of the present invention;

[0038] Figure 17 This is an exploded view of the terminal block and its magnetic core according to an embodiment of the present invention;

[0039] Figure 18 This is a schematic diagram of a terminal block according to an embodiment of the present invention, wherein the movable cover is closed;

[0040] Figure 19 This is a schematic diagram of a terminal block according to an embodiment of the present invention, wherein the movable cover is opened;

[0041] Figure 20This is a schematic diagram of the terminal block from another angle according to an embodiment of the present invention;

[0042] Figure 21 This is a schematic diagram of the third and fourth magnetic cores according to embodiments of the present invention;

[0043] Figures 22a to 22d This is a schematic diagram of the magnetic core fixing components other than the terminals according to an embodiment of the present invention.

[0044] Explanation of reference numerals in the attached figures

[0045] 10 - Uninterruptible power supply; 20 - Cabinet; 21 - Mounting frame; 22 - Opening; 23 - Positioning component; 24 - Wall panel; 25 - Tray; 30 - Power module; 31 - Housing; 32 - Opening; 33 - Positioning component; 34 - Slot; 35 - Buckle; 40 - Terminal; 41 - Input female terminal; 411 - Base; 412 - Stepped structure; 413 - Positioning post; 414 - Opening; 415 - Connector; 42 - Input male terminal; 43 - Output female terminal; 44 - Output male terminal; 45 - Battery female terminal; 451 - Base; 452 - Stepped structure; 453 - Positioning post; 454 - Opening; 455 - Connector; 46 - Battery male terminal; 461 - Base; 462 - Stand Step structure; 463-Positioning sleeve; 464-Opening; 465-Connector; 50-Magnetic core; 60-Magnetic core; 61-Body; 62-Insulating shell; 63-Partition; 64-Compartment; 65-Through hole; 70-Fastener; 80-Fastener; 400-Terminal; 401-Wiring part; 402-First surrounding groove; 403-Partition; 404-Compartment; 405-Modible cover; 405a-Groove; 405b-Stop protrusion; 406-Second surrounding groove; 407-Receiving groove; 408-Cover plate; 409-Socket; 500-Magnetic core; 501-First section; 502-Second section; 600-Magnetic core; 601-Third section; 602-Fourth section; 70-Cable Detailed Implementation

[0046] The schematic solutions of the technical solutions disclosed in this utility model are now described in detail with reference to the accompanying drawings. Although the drawings are provided to illustrate some embodiments of this utility model, the drawings are not necessarily drawn to the dimensions of the specific embodiments, and certain features may be enlarged, removed, or partially cut to better illustrate and explain the disclosure of this utility model. Some components in the drawings may be repositioned according to actual needs without affecting the technical effect. The phrase "in the drawings" or similar terms appearing in the specification do not necessarily refer to all drawings or examples.

[0047] Certain directional terms used in the description of the accompanying drawings below, such as “inner,” “outer,” “above,” “below,” and other directional terms, will be understood to have their normal meaning and refer to those directions as normally viewed in the accompanying drawings. Unless otherwise specified, the directional terms used in this specification are generally in accordance with the conventional directions understood by those skilled in the art.

[0048] The terms “first,” “first,” “second,” “second,” and similar terms used in this utility model do not indicate any order, quantity, or importance, but are used to distinguish one component from other components.

[0049] Figure 1 An exemplary modular uninterruptible power supply (UPS) 10 is shown, wherein multiple power modules (UPMs) 30 are arranged within a cabinet 20 of the UPS 10. The terminals 40 of the modular UPS 10 consist of detachable male and female terminals. In the illustrated embodiment, each of the multiple power modules 30 is detachably connected to a male terminal on a mounting bracket 21 of the cabinet 20 via a female terminal, enabling hot-swapping of the power modules to and from the cabinet. Figures 2 to 4 As shown in more detail, the cabinet 20 has multiple mounting brackets 21 arranged side by side, and each mounting bracket 21 is equipped with a separate input male terminal 42, a separate output male terminal 44, and a separate battery male terminal 46. These male terminals are respectively connected to the external cables of the uninterruptible power supply 10.

[0050] Each power module 30 includes a housing 31 and a circuitry comprised of various electronic components housed within the housing 31. The housing 31 has female terminals for detachable electrical connection to male terminals of the cabinet 20. Adaptively, the female terminals of the power module 30 include a separate input female terminal 41, a separate output female terminal 43, and a separate battery female terminal 45. These female terminals are respectively connected to the internal cables of the power module 30.

[0051] Input female terminal 41 and input male terminal 42 form the input terminals of the uninterruptible power supply 10, output female terminal 43 and output male terminal 44 form the output terminals of the uninterruptible power supply 10, and battery female terminal 45 and battery male terminal 46 form the battery terminals of the uninterruptible power supply 10. The input and output terminals can be, for example, three-phase four-wire terminals including the neutral (N) line, while the battery terminals can be, for example, 6-pin terminals including the protective earth (PE) line.

[0052] Figure 6The structure of the input female terminal 41 is illustrated by way of example. As shown, the base 411 of the input female terminal 41 has a stepped structure 412 formed along its outer periphery. When the input female terminal 41 is mounted to the housing 31 of the power module 30, a gap can be formed between one step surface of the stepped structure 412 and the surface of the housing 31, which is used to mount the magnetic core 50, which will be described in detail later. The output female terminal 43 may have the same configuration as the input female terminal 41.

[0053] Figure 7 The structure of the battery female terminal 45 is illustrated by way of example. As shown, the structure of the battery female terminal 45 is similar to that of the input female terminal 41, and it also has a stepped structure 452 extending along the outer periphery of the base 451 for forming a gap with the surface of the housing 31 of the power module 30 to mount the corresponding magnetic core 50.

[0054] Each of the input female terminal 41, output female terminal 43, and battery female terminal 45 is equipped with a pair of magnetic cores 50 and 60, which are spaced apart along the current transmission direction. Each magnetic core surrounds the current transmission path constructed by the cable connected to the corresponding male and female terminals to provide a filtering effect. The two magnetic cores 50 and 60 may have the same structure, or, as in the embodiment shown, the magnetic cores 50 and 60 may have different structures to facilitate engagement with each female terminal.

[0055] Figure 8 A first type of magnetic core 50 is shown, which is constructed as an integral square ring structure to adapt to the outer peripheral contour of each female terminal. It is understood that the magnetic core 50 can also be constructed in other shapes, such as circular rings, elliptical rings, or irregular rings, etc. Preferably, the inner peripheral contour of the magnetic core 50 is adapted to the circumferential contour of the stepped structure 451 of the connected female terminal so as to be tightly embedded in the gap formed between the stepped structure 451 and the surface of the housing 31.

[0056] Figures 9 to 11 A second type of magnetic core 60 is shown, comprising a body 61 constructed as a single unit and an insulating shell 62, such as a rubber shell or a silicone shell, enclosing the entire body 61. The insulating shell 62 completely separates the body 61 from the corresponding female terminal, or from the surrounding environment. The insulating shell 62 may also extend multiple partitions 63 on its inner peripheral wall, which may, for example, intersect perpendicularly to enclose multiple compartments 64 for the passage of multiple connectors in the female terminal and cables within the power module 30.

[0057] The following is combined with Figure 5 and Figure 12 Taking the battery female terminal 45 as an example, the integration and installation of the female terminal on the power module 30 with the magnetic cores 50 and 60 is introduced. The integration and installation methods of the input female terminal 41 and the output female terminal 43 with the magnetic cores 50 and 60 can be deduced by analogy.

[0058] As shown in the figure, an opening 32 for mounting terminals is formed on the housing 31 of the power module 30, and cables are connected to the terminals. A pair of positioning members 33 are provided on opposite sides of the opening 32 on the housing 31 and extend outward from the housing 31. The magnetic core 50 can be first fitted onto the two positioning members 33 from the outside of the housing 31 and close to the outer surface of the housing 31. The inner circumferential space of the magnetic core 50 is aligned with the opening 32. The battery female terminal 45 is brought close to the magnetic core 50 from the outside of the housing 31 until the base 451 and connector 455 of the battery female terminal 45 are inserted into the opening 32. At this time, the magnetic core 50 is fitted onto the battery female terminal 45 and embedded in the stepped structure 451, thus being sandwiched between one step surface of the stepped structure 451 and the outer surface of the housing 31. The two positioning members 33 are respectively inserted into the two opposite openings 454 of the base 451 of the battery female terminal 45. Fasteners 70 can be installed on the two positioning members 33 respectively to press the battery female terminal 45 and the magnetic core 50 against the outer surface of the housing 31, preventing the battery female terminal 45 and the magnetic core 50 from loosening. In one embodiment, the positioning member 33 is a fixing post with internal threads, and the fastener is a screw. In other embodiments, the positioning member 33 can be a cylinder with external threads, and the fastener is a nut.

[0059] After the battery female terminal 45 and the magnetic core 50 are installed from the outside of the housing 31, a plurality of positioning posts 453 extending from the base 451 of the battery female terminal 45 extend away from the housing 31, while a plurality of connectors 455 of the battery female terminal 45 are inserted into the opening 32 and extend toward the inside of the housing 31 for connecting cables. The magnetic core 60 is fitted onto these connectors 455 of the battery female terminal 45 from the inside of the housing 31, and each compartment 64 of the magnetic core 60 accommodates one connector 455. Then, a fastener 80, such as a bolt, can be inserted from the inside of the housing 31 into the through hole 65 on the insulating housing 62 of the magnetic core 60 until the magnetic core 60 is pressed against the inner surface of the housing 31.

[0060] It is understood that the input female terminal 41 has a similar structure to the battery female terminal 45, including a base 411, a stepped structure 412, a positioning post 413, an opening 414, and a connector 415. Therefore, the input female terminal 41, together with the corresponding magnetic cores 50 and 60, can be installed to the housing 31 of the power module 30 in the same manner as the battery female terminal 45 and the magnetic cores 50 and 60. Similarly, the output female terminal 43 is also installed with the corresponding magnetic cores 50 and 60.

[0061] Depending on the needs, each female terminal may be equipped with the same number and configuration of magnetic cores, or it may be equipped with different numbers and configurations of magnetic cores. For example, some of the input female terminals, output female terminals, and battery female terminals may be equipped with two magnetic cores 50 and 60, while others may be selectively equipped with only one of the magnetic cores 50 and 60.

[0062] As described above, each female terminal of the power module 30 is detachably connected to a corresponding male terminal on the cabinet 20. Similar to the female terminals, the input male terminal 42, output male terminal 44, and battery male terminal 46 are also each connected to a magnetic core 50, 60. Therefore, the structure of each male terminal can refer to the structure of the female terminals. Figure 15 Taking the battery male terminal 46 as an example, a stepped structure 462 is also formed along the outer periphery of the base 461 for mounting the magnetic core 50, so as to form a gap between it and the mounting bracket 21 of the cabinet 20 for mounting the magnetic core 50.

[0063] refer to Figure 14 An opening 22 for mounting terminals is formed on the mounting frame 21 of the cabinet 20. Cables are connected to the terminals. A pair of positioning members 23 are located on opposite sides of the opening 22 and extend into the cabinet 20. The magnetic core 50 can be fitted onto the two positioning members 23 from inside the cabinet 20, close to the inner surface of the mounting frame 21. Then, the battery male terminal 46 is brought closer to the mounting frame 21 from inside the cabinet 20 until the base 461 of the battery male terminal 46 is inserted into the opening 22, so that the magnetic core 50 is fitted onto the base 461 of the battery male terminal 46 and embedded in the stepped structure 462, thus being sandwiched between the stepped surface of the stepped structure 461 and the inner surface of the mounting frame 21. At this time, the two positioning members 23 are respectively inserted into the two opposite openings 464 of the base 461 of the battery male terminal 46. Fasteners (not shown) can be installed on the two positioning members 23 respectively to press the battery male terminal 46 and the magnetic core 50 against the inner surface of the retainer 21, preventing the battery male terminal 46 and the magnetic core 50 from loosening. In one embodiment, the positioning member 23 is a retaining post with internal threads, and the fastener is a screw. In other embodiments, the positioning member 23 can be a cylinder with external threads, and the fastener is a nut.

[0064] After the battery male terminal 46 and the magnetic core 50 are installed, multiple positioning sleeves 463 extending from the base 461 of the battery male terminal 46 extend toward the inside of the cabinet 20, and multiple connectors 465 of the battery male terminal 46 also extend toward the inside of the cabinet 20. When the power module 30 is installed into the cabinet 20, the positioning sleeves 463 of the battery male terminal 46 can be fitted onto the positioning posts 453 of the battery female terminal 45, and the connectors of the battery male terminal 46 can engage with the connectors of the battery female terminal 45 to allow the cables of the two connectors to form an electrical connection. The magnetic core 60 is aligned from the outside of the cabinet 20 with the base 461 of the battery male terminal 46, and each compartment 64 of the magnetic core 60 is aligned with the inner hole of one connector of the battery male terminal 46. Then, fasteners such as bolts (not shown) can be inserted from the outside of the cabinet 20 into the through holes 65 on the insulating shell 62 of the magnetic core 60 until the magnetic core 60 is pressed against the outer surface of the mounting bracket 21 of the cabinet 20.

[0065] It is understood that the input male terminal 42 and the output male terminal 44 have a similar structure to the battery male terminal 46. Therefore, the input male terminal 42 and the output male terminal 44, together with the corresponding magnetic cores, can be installed to the mounting bracket 21 of the cabinet 20 in the same manner as the battery male terminal 46 and the magnetic cores 50 and 60.

[0066] Depending on the needs, each male terminal can be equipped with the same number and configuration of magnetic cores, or with different numbers and configurations of magnetic cores. For example, some of the input male terminals, output male terminals, and battery male terminals may be equipped with two magnetic cores 50 and 60, while others may be selectively equipped with only one of the magnetic cores 50 and 60.

[0067] exist Figure 1 In the modular uninterruptible power supply 10 shown, the corresponding male and female terminals each serve as a wiring component, forming a complete terminal block in a detachable connection manner. In other types of uninterruptible power supplies, such as tower crane uninterruptible power supplies, the terminals may have different configurations to accommodate compatible magnetic cores.

[0068] Figures 16 to 20 An embodiment of terminals and their magnetic cores in a tower crane-type uninterruptible power supply (UPS) is illustrated. As shown, in the tower crane-type UPS, the terminal 400 is presented as a single terminal block, comprising two non-separable wiring portions 401 arranged side-by-side. These two wiring portions can be symmetrical or mirrored with respect to the center of the terminal block. Each wiring portion 401 of the terminal block defines a space for accommodating a connector, and this space can be divided into multiple compartments 404 by a partition 403 according to the number of connectors, with each compartment 404 accommodating one connector. Cables inside the cabinet can be connected to the connectors of the wiring portion 401 on one side of the terminal block, while cables outside the cabinet can be connected to the connectors of the wiring portion 401 on the other side of the terminal block. In this way, the cables inside and outside the cabinet are electrically connected, forming a current transmission path.

[0069] The terminal block can be equipped with a movable cover 405 in each wiring section 401 corresponding to the space for receiving the connector. Opening the movable cover 405 makes it easier to access the connector and connect the cable. After the cable connection is complete, the movable cover 405 can be closed. A locking structure, such as a snap-fit ​​structure, can be provided between the movable cover 405 and the corresponding wiring section 401. The movable cover 405 can be pivotally connected to a shaft fixed to the wiring section 401, allowing it to be rotated about this shaft to open or close the space for receiving the connector. Alternatively, the movable cover can be slidably connected to the wiring section 401 via a linear guide structure, allowing the space for receiving the connector to be moved to open or close. A suitable linear guide structure is, for example, an elongated slot formed on one of the wiring section and the movable cover, and a slider formed on the other of the wiring section and the movable cover that can be inserted into the elongated slot. The terminal block can be mounted to the chassis of an uninterruptible power supply using fasteners, such as bolts. For this purpose, insertion holes 409 for fasteners are formed at opposite ends of the terminal block.

[0070] On the terminal block, a pair of magnetic cores 500 and 600 are provided for each wiring section 401. For example... Figure 17 and Figure 21 As shown, each magnetic core provides a filtering effect by surrounding the space of the terminal block that accommodates the connector, and thus by constructing the current transmission path around the cable connected to the terminal block.

[0071] The magnetic core 500 can be formed by docking separate first segments 501 and second segments 502. The first segment 501 has a long strip and two bent segments extending from opposite ends of the long strip in the same orientation, curved. The bent segments at both ends of the first segment 501 can have the same height. Alternatively, the bent segments at both ends of the first segment 501 can have different heights. The second segment 502 can have the same bending configuration as the first segment 501, thus allowing it to dock with the first segment 501 to form a racetrack-shaped closed magnetic core 500. In other embodiments not shown, the first segment 501 and the second segment 502 can have different configurations, such as bent segments with different heights.

[0072] For mounting the magnetic core 500, the terminal block forms a first surrounding groove 402 around the space accommodating the connector in each wiring section 401, such as... Figures 18 to 20 As shown. The first surrounding groove 402 can be a continuous groove. After the first segment 501 and the second segment 502 are inserted into the first surrounding groove 402 from the upper and lower sides of the terminal block, the two bent sections of the first segment 501 abut against the two bent sections of the second segment 502, forming a closed magnetic core 500 surrounding the current transmission path. To prevent the magnetic core 500 from accidentally coming out upwards, a cover plate 408 can be provided that can cover the first surrounding groove 402 from above the terminal block, thereby blocking the path of the magnetic core 500 upwards away from the terminal block.

[0073] The magnetic core 600 can be composed of a third segment 601 and a fourth segment 602 joined together. The third segment 601 is a long, straight strip. The fourth segment 602 has a long strip and two bent segments extending from opposite ends of the long strip in the same orientation. The bent segments at both ends of the fourth annular segment 602 can have the same height.

[0074] To mount the magnetic core 600, the terminal block has a second surrounding groove 406 formed in each wiring portion 401, surrounding a space for receiving a connector. The second surrounding groove 406 may extend through a movable cover 405; for this purpose, a receiving groove 407 is formed in the movable cover 405 to serve as part of the second surrounding groove 406 and to receive a third segment 601, while the remaining groove portion of the second surrounding groove 406 is formed on the terminal block and to receive a fourth segment 602. When the movable cover 405 is closed, the second surrounding groove 406 is connected, and the third segment 601 and the fourth segment 602 are mated, forming a closed magnetic core 600 surrounding the current transmission path.

[0075] The receiving groove 407 can be formed on the movable cover 405 in any suitable configuration. In the illustrated embodiment, the movable cover 405 has grooves 405a formed at opposite ends of its outer surface facing away from the space containing the connector, with the openings of the two grooves 405a facing each other. Between the grooves 405a at both ends, two rows of stop protrusions 405b are arranged on the outer surface of the movable cover 405. The spacing between the two rows of stop protrusions 405b is substantially the same as the opening width of the grooves 405a. The figure exemplarily shows four stop protrusions 405b in each row, spaced apart along the direction from one groove 405a to another, but in practical applications, the number of stop protrusions 405b in each row can be adaptively increased or decreased. The third segment 601 can be engaged between the two rows of stop protrusions 405b, with both ends of the third segment 601 embedded in the two grooves 405a respectively, thereby fixing the third segment 601 in the second surrounding groove 406. Alternatively, the two rows of stop protrusions can be omitted, and the third section 601 can be positioned solely by the grooves 405a at both ends. Or, the two grooves 405a can be omitted, and the third section 601 can be positioned solely by the two rows of stop protrusions 405b.

[0076] Similar to the terminals of modular uninterruptible power supplies (UPS), the terminal blocks of the tower crane-type UPS in this embodiment can be arranged separately for the input group, output group, battery group, and bypass group, for example... Figure 18The diagram shows a separate battery terminal block, which may have a neutral (N) wire and is installed into the uninterruptible power supply (UPS) chassis via fasteners inserted into its own socket 409. Similarly, tower crane UPS systems may also have separate input terminal blocks, separate output terminal blocks, and separate bypass terminal blocks, each with a neutral (N) wire, installed into the UPS chassis via fasteners inserted into its own sockets. For maintenance, the input terminal blocks, output terminal blocks, battery terminal blocks, and bypass terminal blocks can be individually removed and replaced.

[0077] As described above, each terminal block has magnetic cores 500 and 600 installed on its two side wiring portions 401, respectively, so each terminal block can have a total of four magnetic cores. However, this is not mandatory, and the number of magnetic cores can be adjusted as needed. For example, the terminal block can have magnetic cores 500 and 600 installed on one side wiring portion, and only one of magnetic cores 500 and 600 selectively installed on the other side wiring portion. In addition, some of the input terminal blocks, output terminal blocks, battery terminal blocks, and bypass terminal blocks can have four magnetic cores installed simultaneously, including two magnetic cores 500 and two magnetic cores 600, while the remaining terminal blocks can selectively install only one, two, or three of these magnetic cores.

[0078] The above description uses the terminals of the uninterruptible power supply (UPS) as fixing components to install the magnetic core. Those skilled in the art will understand that the installation method of the magnetic core in the UPS is not limited to this. In other embodiments, a separate fixing component may be provided on the UPS housing (such as the housing of the power module in a modular UPS, the cabinet housing the power module, or the housing of a tower crane UPS). This fixing component may be integrally formed on the housing or detachably connected to the housing. This fixing component is used to assemble the magnetic core, ensuring that the magnetic core surrounds the cable to achieve a filtering effect, while also standardizing the magnetic core installation method and preventing blockage of the UPS air outlet channel, and eliminating the need for binding wires to wrap the magnetic core.

[0079] Figures 22a to 22d Examples illustrate various forms of fasteners formed on the housing of an uninterruptible power supply. For example... Figure 22a As shown, the uninterruptible power supply has the same characteristics as... Figures 1 to 5 Similar to the illustrated embodiment, the power module's housing 31 has an opening 32 through which cables can pass, or where terminals are installed and connected to the cables. A groove 34 is formed around the opening 32 on the outer surface of the housing 31 for inserting various types of magnetic cores (e.g., magnetic core 50). Cables can pass through the magnetic core inserted into the groove 34. Thus, the opening of the magnetic core for cable passage is substantially parallel to the sidewall of the power module's housing 31 with the opening 32. Furthermore, similar grooves can also be formed around the opening 32 on the inner surface of the housing 31 for embedding another magnetic core.

[0080] Alternative Figure 22a Slot 34, such as Figure 22b On the outer surface of the housing 31, a pair of latches 35 are formed on opposite sides of the opening 32. Various magnetic cores (such as magnetic core 50) can be latched into the latches 35, thereby ensuring that the cable passage openings of the magnetic cores are substantially parallel to the sidewall of the power module housing 31 with the opening 32. Similarly, latches 35 can also be formed on the inner surface of the housing 31. Furthermore, Figure 22a and Figure 22b The slots and snap-fit ​​magnetic core fasteners shown can also be formed on other sides of the housing 31. Generally, the housing 31 is a hexahedral frame structure, and fasteners can be formed on any side of the housing 31 as needed.

[0081] Figure 22c and Figure 22d Another form of fastener for uniformly mounting the magnetic core of an uninterruptible power supply is shown, wherein Figure 22d yes Figure 22c Enlarged view at point D. As shown, multiple power modules 30 are arranged vertically within the cabinet 20 of the uninterruptible power supply 10. On opposite sides of these power modules 30, the cabinet 20 has wall panels 24. Multiple horizontal support plates 25 connect between the wall panels 24, corresponding to each power module 30. The aforementioned magnetic cores can be selectively fixed to the wall panels 24 and support plates 25; for example, magnetic core 50 can be fixed to the wall panel 24, and magnetic core 60 to the support plate 25. Thus, the openings for the cables 70 to pass through the magnetic cores are substantially perpendicular to the sidewalls of the power module 30 housing for connecting cables. The wall panels 24 and support plates 25 can also form structures for positioning the magnetic cores, such as slots or clips.

[0082] Figures 22a to 22d The various forms of non-terminal type fasteners were introduced using modular uninterruptible power supplies as an example. However, it is understandable that these types of fasteners can also be applied to tower-type uninterruptible power supplies to uniformly install various magnetic cores.

[0083] It should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0084] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes, modifications, and combinations made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A magnetic core fixing structure for an uninterruptible power supply, wherein the uninterruptible power supply has a casing, and a cable is connected to the casing, characterized by, The magnetic core fixing structure comprises: at least one magnetic core arranged around the cable; a fixing member provided on the casing and having a limiting structure for mounting the at least one magnetic core.

2. The magnetic core fixation structure for an uninterruptible power supply according to claim 1, characterized by, The fixing member is configured as a terminal having a first wiring portion and a second wiring portion arranged side by side, wherein the first wiring portion is adapted to connect a first cable and the second wiring portion is adapted to connect a second cable to form a current transmission path, and the at least one magnetic core is mounted on the terminal and arranged around the current transmission path.

3. The magnetic core fixation structure for an uninterruptible power supply according to claim 2, characterized by, At least one of the first wiring portion and the second wiring portion forms a stepped structure along an outer periphery, and the at least one magnetic core comprises a first magnetic core sleeved on the at least one wiring portion and embedded in the stepped structure.

4. The magnetic core fixation structure for an uninterruptible power supply according to claim 2, characterized by, The at least one magnetic core comprises a second magnetic core sleeved on at least one of the first wiring portion and the second wiring portion, and the second magnetic core comprises a body and an insulating shell completely wrapping the body and separating the body from the at least one wiring portion.

5. The magnetic core fixation structure for an uninterruptible power supply according to claim 4, characterized by, The body is configured as a ring, and the insulating shell is formed with a plurality of cross partitions extending between inner peripheral walls of the body, and a plurality of compartments corresponding to a plurality of terminals of the terminal are surrounded by the cross partitions.

6. The magnetic core fixation structure for an uninterruptible power supply according to claim 2, characterized by, At least one of the first wiring portion and the second wiring portion is formed with a surrounding groove, and the at least one magnetic core comprises a first section and a second section capable of being inserted into the surrounding groove opposite to each other to surround the current transmission path.

7. The magnetic core fixation structure for an uninterruptible power supply according to claim 2, characterized by, At least one of the first wiring portion and the second wiring portion is formed with a space accommodating a plurality of terminals of the terminal, and a movable cover capable of opening and closing the space, and the at least one wiring portion is further formed with a surrounding groove, wherein a part of the surrounding groove is provided on the movable cover, and the at least one magnetic core comprises a third section and a fourth section capable of being inserted into the surrounding groove opposite to each other to surround the current transmission path.

8. The magnetic core fixation structure for an uninterruptible power supply according to any one of claims 2 to 7, characterized by, The first wiring portion and the second wiring portion are detachably connected, wherein the first wiring portion and the second wiring portion are each provided with two magnetic cores arranged at intervals along the current transmission path.

9. The magnetic core fixation structure for an uninterruptible power supply according to any one of claims 2 to 7, characterized by, The terminal is an integral member and the first wiring portion and the second wiring portion are fixed opposite to each other, wherein the first wiring portion and the second wiring portion are each provided with two magnetic cores arranged at intervals along the current transmission path.

10. The magnetic core fixation structure for an uninterruptible power supply according to claim 1, characterized by, The fixing member is configured as at least one of a groove recessed in the casing, a buckle protruding from the casing, and a support plate extending from the casing, and the at least one magnetic core is embedded in the groove or the buckle or fixed to the support plate, and the cable passes through the at least one magnetic core.

11. An uninterruptible power supply, characterized by The magnetic core fixing structure comprises: at least one magnetic core arranged around the cable; a fixing member provided on the casing and having a limiting structure for mounting the at least one magnetic core. The fixing member is configured as a terminal having a first wiring portion and a second wiring portion arranged side by side, wherein the first wiring portion is adapted to connect a first cable and the second wiring portion is adapted to connect a second cable to form a current transmission path, and the at least one magnetic core is mounted on the terminal and arranged around the current transmission path. At least one of the first wiring portion and the second wiring portion forms a stepped structure along an outer periphery, and the at least one magnetic core comprises a first magnetic core sleeved on the at least one wiring portion and embedded in the stepped structure. The at least one magnetic core comprises a second magnetic core sleeved on at least one of the first wiring portion and the second wiring portion, and the second magnetic core comprises a body and an insulating shell completely wrapping the body and separating the body from the at least one wiring portion. The body is configured as a ring, and the insulating shell is formed with a plurality of cross partitions extending between inner peripheral walls of the body, and a plurality of compartments corresponding to a plurality of terminals of the terminal are surrounded by the cross partitions. At least one of the first wiring portion and the second wiring portion is formed with a surrounding groove, and the at least one magnetic core comprises a first section and a second section capable of being inserted into the surrounding groove opposite to each other to surround the current transmission path. At least one of the first wiring portion and the second wiring portion is formed with a space accommodating a plurality of terminals of the terminal, and a movable cover capable of opening and closing the space, and the at least one wiring portion is further formed with a surrounding groove, wherein a part of the surrounding groove is provided on the movable cover, and the at least one magnetic core comprises a third section and a fourth section capable of being inserted into the surrounding groove opposite to each other to surround the current transmission path. The first wiring portion and the second wiring portion are detachably connected, wherein the first wiring portion and the second wiring portion are each provided with two magnetic cores arranged at intervals along the current transmission path. The terminal is an integral member and the first wiring portion and the second wiring portion are fixed opposite to each other, wherein the first wiring portion and the second wiring portion are each provided with two magnetic cores arranged at intervals along the current transmission path. The fixing member is configured as at least one of a groove recessed in the casing, a buckle protruding from the casing, and a support plate extending from the casing, and the at least one magnetic core is embedded in the groove or the buckle or fixed to the support plate, and the cable passes through the at least one magnetic core. The magnetic core fixing structure comprises: at least one magnetic core arranged around the cable; a fixing member provided on the casing and having a limiting structure for mounting the at least one magnetic core.

Images