Power distribution structure

Abstract

The utility model discloses a power distribution structure, which comprises a bus duct, the bus duct comprises a shell and a plurality of conducting bars, the conducting bars are connected to the shell side by side, the middle part of each conducting bar extends outwards to form a first connecting terminal, the shell is provided with a clearance position for avoiding the first connecting terminal, and the first connecting terminal is connected with the bus duct. The first connecting terminals of the conducting bars are arranged in a staggered manner; the power distribution cabinet is connected with an insulating plate, the insulating plate is provided with a plurality of second connecting terminals, and the second connecting terminals are connected with the first connecting terminals in a matched mode. When a power distribution cabinet needs to be installed on the bus duct, the first connecting terminals of the conducting bars are arranged in a staggered mode, and the positions of all the second connecting terminals of the power distribution cabinet correspond to the positions of all the first connecting terminals in a one-to-one mode, so that the power distribution cabinet and the bus duct have a unique connection relation. Therefore, the condition of reverse connection of the terminals is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a power distribution structure. Background Art

[0002] With the emergence of modern engineering facilities and equipment, electricity consumption in all walks of life has increased sharply, especially with the emergence of numerous high-rise buildings and large factories and workshops. Traditional cables as transmission conductors can no longer meet the power requirements in high-current transmission systems. The parallel use of multiple cables has brought many inconveniences to on-site installation and construction.

[0003] Bus duct comes into being as a new type of distribution conductor. Compared with traditional cables, bus duct fully demonstrates its superiority in large current transmission. At the same time, due to the use of new technologies and new processes, the contact resistance and temperature rise at the connection points at both ends of the bus duct and the branch port are greatly reduced. High-quality insulating materials are used in the bus duct, which improves the safety and reliability of the bus duct and makes the entire system more perfect.

[0004] However, during the installation of the bus duct and the distribution cabinet, the terminals may occasionally be connected reversely, so the electrician needs to conduct electrical tests on the distribution cabinets one by one after the assembly is completed. Utility Model Content

[0005] The utility model aims to provide a power distribution structure to avoid the situation where terminals are connected in reverse.

[0006] According to a first aspect of the present invention, a power distribution structure includes:

[0007] A bus duct, comprising a housing and a plurality of conductive bars, wherein the plurality of conductive bars are connected to the housing in a side-by-side manner, a first connecting terminal is extended outward from the middle of each conductive bar, the housing is provided with a clearance position for avoiding the first connecting terminal, and the first connecting terminals of each conductive bar are mutually staggered;

[0008] A power distribution cabinet is connected to an insulating plate, wherein the insulating plate is provided with a plurality of second connecting terminals, and the second connecting terminals are cooperatively connected with the first connecting terminals.

[0009] A power distribution structure according to an embodiment of the utility model has at least the following beneficial effects: when it is necessary to install a power distribution cabinet on the bus duct, since the first connection terminals of each of the conductive bars are staggered with each other, and the positions of all the second connection terminals of the power distribution cabinet are respectively arranged in a one-to-one correspondence with the positions of all the first connection terminals, the power distribution cabinet and the bus duct have a unique connection relationship, thereby avoiding the situation where the terminals are connected in reverse.

[0010] According to some embodiments of the utility model, in order to achieve a fixed connection between the power distribution cabinet and the bus duct, the outer shell has a fixed installation unit, the power distribution cabinet is movably connected with a plurality of movable installation units, and the power distribution cabinet and the bus duct are assembled through the fixed installation unit and the movable installation unit.

[0011] According to some embodiments of the utility model, the fixed installation unit is a sheet metal part with an overhead end, the width of the power distribution cabinet is greater than the width of the sheet metal part, and each of the movable installation units has a clamping position that is clamped to the overhead end of the sheet metal part. Since the width of the power distribution cabinet is greater than the width of the sheet metal part, the movable installation unit is located outside the sheet metal part, and when the clamping position of the movable installation unit is clamped to the overhead end of the sheet metal part, the relative position between the power distribution cabinet and the bus duct is limited.

[0012] According to some embodiments of the utility model, the sheet metal part is an I-shaped frame, the movable installation unit is a lock, the power distribution cabinet is fixedly connected with a screw rod penetrating the lock rod, and the screw rod is threadedly connected with a nut at one end away from the power distribution cabinet. As the nut is gradually screwed in, the locking position of the lock rod gradually approaches the overhead end of the I-shaped frame, and when the nut is locked, the power distribution cabinet is fixedly connected to the bus duct through the lock rod.

[0013] According to some embodiments of the utility model, each of the conductive bars is provided with terminals at both ends, and each of the conductive bars is coated with an insulating film outside its two terminals. Since the two terminals of the conductive bar need to be connected to an external circuit, they cannot be coated with an insulating film, but the rest of the conductive bar does not need to be connected to an external circuit, so it needs to be wrapped with an insulating film to avoid short circuit.

[0014] According to some embodiments of the utility model, the middle parts of all the conductive rows are stacked in sequence, and the ends of all the conductive rows are spaced apart from each other. Through the above arrangement, the middle parts of all the conductive rows are stacked together, which is conducive to eliminating the ionization environment between two adjacent conductive rows to achieve the purpose of anti-interference. Since the two ends of the conductive row are not covered with an insulating film, it is necessary to space the ends of all the conductive rows to prevent short circuits.

[0015] According to some embodiments of the present invention, all terminals located at any end of the housing are arranged in parallel with each other to facilitate connection with an external circuit.

[0016] According to some embodiments of the present invention, specifically, one of the first connection terminal and the second connection terminal is a male terminal, and the other of the two is a female terminal.

[0017] According to some embodiments of the present invention, in order to maintain a long-term electrical connection between the power distribution cabinet and the bus duct, the female terminal has an elastic tendency to abut against the male terminal.

[0018] According to some embodiments of the utility model, since all conductive bars include at least a live wire and a neutral wire, the number of the conductive bars is at least two, and the number of the first connecting terminals is an integer multiple of the number of the conductive bars, so that one bus duct can be equipped with multiple distribution cabinets.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the power distribution structure of an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A front view of the power distribution structure shown;

[0023] Figure 3 yes Figure 1 A side view of the power distribution structure shown;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the conductive bar of an embodiment of the utility model;

[0025] Figure 5 yes Figure 1 A three-dimensional exploded view of the power distribution structure shown.

[0026] In the attached drawings: 100-bus duct, 200-power distribution cabinet, 110-housing, 120-conductive bar, 121-terminal, 122-first connecting terminal, 111-avoidance, 210-insulating plate, 220-second connecting terminal, 131-overhead end, 130-I-frame, 300-lock, 310-screw, 320-nut, 330-position, 230-electrical room, 240-wiring hole, 250-switch door. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] like Figures 1 to 5 As shown, according to a power distribution structure of an embodiment of the first aspect of the utility model, it includes a bus duct 100 and a distribution cabinet 200. The length of the bus duct 100 needs to be determined according to actual needs. If the bus duct 100 is used in the distribution shaft of a building, then the length of each bus duct 100 exceeds 3 meters. A plurality of bus ducts 100 are connected and assembled together to form a power supply facility erected in the entire building. The power supply facility is connected to at least one distribution cabinet 200 on each floor of the building to meet the power supply needs of users.

[0032] Specifically, the bus duct 100 includes a housing 110 and a plurality of conductive bars 120, wherein the plurality of conductive bars 120 are connected to the housing 110 in a side-by-side manner, and each of the conductive bars 120 is provided with terminals 121 for connecting to an external circuit at both ends, and all the terminals 121 are located outside the housing 110. The conductive bars 120 can be fixedly connected to the housing 110 through different mounting structures. Since the improvement of the present invention is not in the connection between the conductive bars 120 and the housing 110, the present invention does not limit the fixed connection structure between the two.

[0033] In order to eliminate the ionization environment between two adjacent conductive bars 120 to achieve the purpose of anti-interference, the middle parts of all conductive bars 120 are stacked in sequence. At the same time, each conductive bar 120 is coated with an insulating film (not shown in the drawings) outside its two ends 121. The insulating film can be a nylon insulating film to avoid short circuit between two adjacent conductive bars 120. Since the two ends 121 of the conductive bar 120 are not coated with insulating films, the ends 121 of all conductive bars 120 need to be spaced apart to prevent short circuit.

[0034] In order to separate the terminals 121 of every two adjacent conductive bars 120, the first and last sides of most conductive bars 120 are bent to separate all the terminals 121. At this time, all the terminals 121 located at any end of the housing 110 are arranged parallel to each other to facilitate the connection between the bus duct 100 and the external circuit.

[0035] The number of the conductive bars 120 is determined by the number of phases of the bus duct 100. When the bus duct 100 is two-phase, the number of the conductive bars 120 is two or three, the two conductive bars 120 are the live wire and the neutral wire, respectively, and the ground wire is integrated on the housing 110, and the three conductive bars 120 are the live wire, the neutral wire and the ground wire; when the bus duct 100 is three-phase, the number of the conductive bars 120 is four or five, the four conductive bars 120 are the live wire U, the live wire V, the live wire W and the neutral wire, respectively, and the ground wire is integrated on the housing 110, and the five conductive bars 120 are the live wire U, the live wire V, the live wire W, the neutral wire and the ground wire.

[0036] like Figure 3 and Figure 5As shown, in order to realize the electrical connection between the power distribution cabinet 200 and the bus duct 100, the middle part of each conductive bar 120 has a first connection terminal 122 extending outward from its narrow surface, and the housing 110 is provided with a clearance position 111 to avoid the first connection terminal 122, so that each first connection terminal 122 extends out of the housing 110 through the clearance position 111. Since all conductive bars 120 are connected to the housing 110 in a side-by-side manner, all first connection terminals 122 have two different arrangement modes. The first arrangement mode is to arrange all first connection terminals 122 of the same group in an aligned manner, and the second arrangement mode is to arrange all first connection terminals 122 of the same group in a staggered manner. In order to avoid the situation where the terminals are connected in reverse, the utility model selects the second arrangement mode.

[0037] Correspondingly, the power distribution cabinet 200 is connected with an insulating plate 210, and the insulating plate 210 is provided with a plurality of second connection terminals 220, the number of the second connection terminals 220 is kept consistent with the number of the conductive bars 120, the positions of all the second connection terminals 220 are respectively arranged in one-to-one correspondence with the positions of all the first connection terminals 122, one of the first connection terminal 122 and the second connection terminal 220 is a male terminal, and the other of the two is a female terminal, and the electrical connection between the power distribution cabinet 200 and the bus duct 100 is achieved through the matching connection of the male terminal and the female terminal. In this embodiment, the first connection terminal 122 is selected as a male terminal, and the second connection terminal 220 is selected as a female terminal. In order to maintain the long-term electrical connection between the power distribution cabinet 200 and the bus duct 100, the female terminal has an elastic tendency to abut against the male terminal. That is, the female terminal is provided with two elastic contact pieces, and when the male terminal is inserted into the gap between the two elastic contact pieces, the two elastic contact pieces provide elastic force to maintain abutment with the male terminal.

[0038] With the above structure, when it is necessary to install the power distribution cabinet 200 on the bus duct 100, since the first connection terminals 122 of each of the conductive bars 120 are staggered with each other, and the positions of all the second connection terminals 220 of the power distribution cabinet 200 correspond to the positions of all the first connection terminals 122, respectively, the power distribution cabinet 200 and the bus duct 100 have a unique connection relationship to prevent mistakes, thereby avoiding the situation where the terminals are connected in reverse.

[0039] If the present invention selects the first arrangement, in addition to being unable to ensure that the power distribution cabinet 200 and the bus duct 100 have a unique connection relationship, it is also easy to cause a short circuit due to the small interval between two adjacent second connection terminals 220.

[0040] like Figure 3 As shown, in order to achieve a fixed connection between the power distribution cabinet 200 and the bus duct 100, the housing 110 has a fixed installation unit, and a movable installation unit is movably connected to each of the four corners of the power distribution cabinet 200. The power distribution cabinet 200 and the bus duct 100 are assembled through the fixed installation unit and the movable installation unit.

[0041] Specifically, the fixed installation unit is an I-shaped frame 130 with an overhead end 131, the avoidance position 111 is arranged on the I-shaped frame 130, the movable installation unit is a lock 300, the width of the power distribution cabinet 200 is greater than the width of the I-shaped frame 130, the power distribution cabinet 200 is fixedly connected with a screw 310 running through the lock 300, and the screw 310 is threadedly connected with a nut 320 at one end away from the power distribution cabinet 200, and each of the locks 300 has a clamping position 330 that is clamped on the overhead end 131 of the I-shaped frame 130. Since the width of the power distribution cabinet 200 is greater than the width of the I-shaped frame 130, the lock 300 is located outside the I-shaped frame 130. As the nut 320 is gradually screwed in, the locking position 330 of the lock 300 gradually approaches the overhead end 131 of the I-shaped frame 130. When the nut 320 is locked, the locking position 330 of the lock 300 is locked to the overhead end 131 of the I-shaped frame 130, thereby achieving a fixed connection between the power distribution cabinet 200 and the bus duct 100. It can be understood that the fixed installation unit can also be other sheet metal parts with an overhead end 131, and the number of the movable installation units can also be two, three, etc., and is not limited to the above embodiment.

[0042] It should be noted that, during the assembly process of the power distribution cabinet 200, firstly, all the second connection terminals 220 of the power distribution cabinet 200 need to be aligned with and matched to the corresponding first connection terminals 122 of the bus duct 100, and then the movable installation unit is used to realize the fixed connection between the power distribution cabinet 200 and the bus duct 100. Since multiple power distribution cabinets 200 may need to be installed on one bus duct 100, the number of the first connection terminals 122 is an integer multiple of the number of the conductive bars 120, and each group of first connection terminals 122 is electrically connected to one power distribution cabinet 200.

[0043] In some embodiments of the present invention, the conductive bar 120 is a galvanized copper component. After galvanizing, the conductive bar 120 has a smaller contact resistance and is less prone to oxidation.

[0044] like Figure 1As shown, in some embodiments of the utility model, the power distribution cabinet 200 has different electrical rooms 230, each of the electrical rooms 230 is provided with different electrical components, wiring is carried out between two adjacent electrical rooms 230 through wiring holes 240, and each of the electrical rooms 230 is equipped with an independent switch door 250.

[0045] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A power distribution structure, characterized in that: include: A bus duct (100), comprising a housing (110) and a plurality of conductive bars (120), wherein the plurality of conductive bars (120) are connected to the housing (110) in a side-by-side manner, a first connecting terminal (122) extending outward from the middle of each conductive bar (120), the housing (110) being provided with a clearance position (111) for avoiding the first connecting terminal (122), and the first connecting terminals (122) of each conductive bar (120) being arranged in a staggered manner. A power distribution cabinet (200) is connected to an insulating plate (210), wherein the insulating plate (210) is provided with a plurality of second connection terminals (220), the positions of all the second connection terminals (220) are arranged in a one-to-one correspondence with the positions of all the first connection terminals (122), and the second connection terminals (220) are connected in coordination with the first connection terminals (122).

2. A power distribution structure according to claim 1, characterized in that: The housing (110) has a fixed installation unit, the power distribution cabinet (200) is movably connected to a plurality of movable installation units, and the power distribution cabinet (200) and the bus duct (100) are assembled via the fixed installation unit and the movable installation unit.

3. A power distribution structure according to claim 2, characterized in that: The fixed installation unit is a sheet metal part with an overhead end (131), the width of the power distribution cabinet (200) is greater than the width of the sheet metal part, and each of the movable installation units has a clamping position (330) clamped to the overhead end (131) of the sheet metal part.

4. A power distribution structure according to claim 3, characterized in that: The sheet metal part is an I-shaped frame (130), the movable installation unit is a lock (300), the power distribution cabinet (200) is fixedly connected with a screw rod (310) that passes through the lock (300), and the screw rod (310) is threadedly connected with a nut (320) at one end away from the power distribution cabinet (200).

5. A power distribution structure according to claim 1, characterized in that: Each of the conductive bars (120) is provided with ends (121) at both ends, and each of the conductive bars (120) is coated with an insulating film outside its two ends (121).

6. A power distribution structure according to claim 5, characterized in that: The middle parts of all the conductive bars (120) are stacked in sequence, and the ends (121) of all the conductive bars (120) are spaced apart from each other.

7. A power distribution structure according to claim 6, characterized in that: All the terminals (121) located at any end of the housing (110) are arranged parallel to each other.

8. A power distribution structure according to claim 1, characterized in that: One of the first connection terminal (122) and the second connection terminal (220) is a male terminal, and the other of the two is a female terminal.

9. A power distribution structure according to claim 8, characterized in that: The female terminal has an elastic tendency to abut against the male terminal.

10. A power distribution structure according to claim 1, characterized in that: The number of the conductive bars (120) is at least two, and the number of the first connecting terminals (122) is an integer multiple of the number of the conductive bars (120).

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