CN215300097U - Power distribution bus system - Google Patents

Abstract

The utility model relates to an electric power supply technical field, concretely relates to distribution bus system, it includes: a housing having a cavity; a cover body, which is jointed with the shell; the first bus-bar clamp is arranged on the cover body; the second bus-bar clamp is accommodated in the cavity and is constructed to be capable of being installed to the shell according to the preset distance relative to the first bus-bar clamp so as to meet the space requirement for accommodating bus-bars of different specifications, and the first bus-bar clamp and the second bus-bar clamp are matched to carry out position limitation on the bus-bars. Above-mentioned distribution bus system is suitable for the generating line row of multiple specification, need not to increase extra part and carry out extensive structure transformation's to it under the condition, changes the distance that the second generating line pressed from both sides for the casing bottom to form the space that is applicable to corresponding specification generating line row size between two generating line presss from both sides, through adjusting the position that the second generating line pressed from both sides in the casing depth direction promptly, can satisfy the space demand that the generating line of different specifications (especially width) was arranged.

Description

Power distribution bus system

Technical Field

The utility model relates to an electric power supply technical field especially relates to a distribution bus-bar system.

Background

The performance and structure of the distribution bus, which is an important component of the low-voltage switch cabinet, directly affect the safety and reliability of the power transmission and distribution system.

Conventional distribution bus bar systems are generally only suitable for bus bars of one specification, for example, by completely wrapping vertical buses in the bus bar in an insulating housing, and such a structure cannot meet the requirements of adapting and replacing bus bars of different specifications. In order to be suitable for bus bars with different specifications, the existing power distribution system generally adopts the additional cushion block to change the inner space of the shell so as to accommodate the bus bars with the expected specification; or a set of oppositely arranged clamping plates (bus-bar clamps) are subjected to distance adjustment by adopting adjusting bolts, so that the space is changed to adapt to bus-bar rows with different specifications. The latter generally requires an insulating sleeve to be placed over the adjusting bolt. The existing power distribution system has the defects of more parts, complex structure, poor applicability and high cost in the aspect of structural design provided for bus bars with different specifications.

Based on this, the related art still strives to design a distribution bus system, which can efficiently install and replace the bus bar based on the system power distribution design, or adjust the distribution bus system in real time to meet different power distribution requirements after leaving the factory, and simultaneously ensure the safety and reliability of the distribution bus system, thereby effectively overcoming the defects existing in the prior art.

SUMMERY OF THE UTILITY MODEL

It is therefore an object of the present invention to provide a distribution bus system whereby the above-mentioned disadvantages of the prior art are overcome.

In order to accomplish the above task, the utility model provides a distribution bus-bar system, distribution bus-bar system includes: a housing having a cavity; a cover engaging the housing; a first bus bar clamp disposed on the cover body; a second bus bar clamp received in the cavity and configured to be mountable to the housing at a predetermined distance relative to the first bus bar clamp to meet space requirements for receiving bus bars of different specifications, the first bus bar clamp and the second bus bar clamp cooperating to positionally define the bus bars.

Preferably, a plurality of positioning insertion holes are provided on the housing, the second bus bar clip is fixed to the housing with positioning members passing through the positioning insertion holes, and the second bus bar clip can be alternatively engaged to the positioning insertion holes at different positions with respect to the housing position.

Preferably, the housing is provided with a guide groove, and the second bus bar clamp is configured to be slidable relative to the guide groove and stopped at a predetermined position by a stopper fitting the guide groove, so as to be suitable for bus bar rows of different specifications.

Preferably, the first and second bus-bar clips each have a recess and the bus-bars are positionally defined by the respective recesses mating with one another.

Preferably, a plurality of the second bus-bars are connected in parallel to each other at predetermined intervals to be integrated and mounted to the housing.

Preferably, the busbar arrangement includes a first busbar held in place by the first and second busbar clamps and a second busbar extending out of the housing for connection to other electrical components.

Preferably, the distribution bus bar system further comprises an end cover, two ends of the housing are respectively engaged with the end cover to encapsulate the first bus bar in the cavity, and the second bus bar extends out of the housing.

Preferably, the end cap has a stopper region partitioned by a rib plate to partition a first bus bar while partitioning a second bus bar attached to the first bus bar at one end of the first bus bar.

Preferably, the end cap and the housing are engaged with each other with a fit of a snap member and a fixing groove.

Preferably, the first bus bar clip is press-fit onto the cover and is provided with a socket on its side remote from the bus bar for engaging other electrical components.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be readily apparent to those skilled in the art from that description or recognized by practicing the invention as described herein, including the detailed description which follows, and the appended drawings.

Drawings

Embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:

fig. 1 illustrates a low-voltage switchgear based on a power distribution bus bar system configuration provided by the present invention;

figure 2 shows a configuration of a parallel connection of a distribution bus system according to the present invention;

fig. 3 is a schematic diagram of a power distribution bus bar system according to the present invention;

FIG. 4 is an exploded schematic view of FIG. 3;

FIG. 5 is a front view of FIG. 2;

FIG. 6 is a front view of FIG. 3;

FIG. 7 shows a cross-sectional view along line A-A of FIG. 6;

FIG. 8 is a front view of FIG. 3, with the cover and first bus bar clamp not shown;

fig. 9 is a perspective view of a first bus bar clip of the power distribution bus bar system according to the present invention;

fig. 10 is another perspective view of the first bus bar clip of the power distribution bus bar system according to the present invention;

fig. 11 is a perspective view of a second bus bar clip of the power distribution bus bar system according to the present invention;

fig. 12 is a perspective view of an end cap of a power distribution bus bar system according to the present invention.

Description of the reference numerals

1-distribution bus system 10-shell 100-cavity 102-positioning jack 104-positioning piece 106-fixing groove 11-cover 12-first bus clamp 13-second bus clamp 14-end cover 140-ribbed plate 142-limiting area 144-clamping piece 15-bus bar 150-first bus 152-second bus 16-groove

Detailed Description

Exemplary aspects of a power distribution bus bar system according to the present invention will now be described in detail with reference to the accompanying drawings. The drawings are provided to present embodiments of the invention, but the drawings are not necessarily to scale of the specific embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the disclosure of the present invention. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all of the drawings or the examples.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "upper", "lower", and other directional terms, will be understood to have their normal meaning and refer to those directions as they relate to when the drawings are normally viewed. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

The terms "first," "second," and the like as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

Fig. 1 illustrates a low voltage switchgear constructed based on the distribution bus bar system provided herein. Fig. 2 illustrates a configuration of parallel connections of a power distribution bus system according to the present disclosure. Fig. 3 is a schematic diagram of a power distribution bus bar system according to the present disclosure. Fig. 4 is an exploded schematic view of fig. 3. Referring to fig. 4, the utility model provides a distribution bus-bar system 1 is applicable to the low-voltage switchgear, and it includes casing 10, lid 11, first bus-bar clamp 12 and second bus-bar clamp 13. Bus bars 15 suitable for low voltage switchgears typically include three gauges (thickness x width: 10x50, 10x40, 10x30) that have different widths and can accommodate six current levels.

In the distribution bus bar system 1 herein, the housing 10 is embodied as a cavity 100, and the cavity 100 is configured into a substantially U-shaped groove and extends in a length direction of the bus bar 15 to be mounted therein (other directions will be defined with reference to this direction hereinafter) to accommodate the bus bar 15 therein. The housing 10 is open at both the upper and lower ends and is fitted with respective end caps 14 at the upper and lower ends to enclose the bus bars 15 in the housing 10. The front end of the housing 10 is open, and a cover 11 is provided to detachably engage the housing 10, for example. The connection of the cover 11 to the housing 10 can be realized by a fastening connection, for example by means of a screw connection. Fig. 7 illustrates a cross-sectional view of the power distribution bus bar system provided herein along line a-a of fig. 6. As shown in fig. 7, the cover 11 is partially embedded in the housing 10, and a bent edge is formed along the length direction of the cover 11, the bent edge is provided with an engagement hole, a corresponding position on the housing 10 is provided with a fitting hole, and the cover 11 and the housing 10 are fixedly connected by a fastening connector (e.g., a fixing bolt) passing through the engagement hole and the fitting hole. Alternatively, the cover 11 may be connected to the housing 10 by providing a guide groove (the guide groove is arranged along the length of the housing 10) at an edge position of a side plate of the housing 10 (i.e., an edge position of the front end opening side), and the cover 11 engages with the guide groove by means of plugging to realize relative fixation of the cover 11 and the housing 10. Additionally, it is also possible to provide additional fixing aids (if required) for the cover 11 and the housing 10 to be fixed relative to one another in a plug-in manner. Of course, other detachably connected engagement means not mentioned herein will also occur to those skilled in the art.

As shown in fig. 3 and 4, the cover body 11 may be provided with a seating portion at a predetermined distance, and the seating portion may be a socket through which the first bus bar 12 is partially fixed to the cover body 11. In particular, referring to fig. 7, 9 to 11, a clamping portion (e.g. a groove 16) is provided at a side of the first bus bar clamp 12 facing the cavity 100 of the housing 10 for positioning the bus bar 15, and a plugging portion is provided at a side of the first bus bar clamp 12 away from the cavity 100 of the housing 10 for connection with a drawer incoming contact box suitable for a low-voltage switch cabinet. The first bus bar clip 12 can be press-fit into the housing 10, particularly the socket, in a manner that is simple and easy to operate and has good stability.

The second bus bar clamp 13 is arranged in the cavity 100 of the housing 10 and is provided with a clamping portion, e.g. a groove 16, on the side facing away from the bottom of the housing 10 for positioning the bus bar 15. The clamping portions of the first and second bus bar clamps 12, 13 preferably correspond one-to-one with each other so that the two cooperate to position the bus bar 15. Of course, the first bus bar holder 12 and the second bus bar holder 13 may also be arranged staggered with respect to each other, their respective holding portions need not correspond to each other, which may be provided according to actual needs, while such an arrangement also provides for positioning of the bus bar 15. The second bus bar clamp 13 is detachably fixed to the housing 10, for example, by a positioning member 104 (e.g., in a threaded manner). The clamping portions (recesses 16) of the first and second bus bar clamps 12, 13 may alternatively be configured as rectangular recesses 16. However, those skilled in the art will appreciate that the shape of the groove 16 may be changed according to actual needs, and is not limited thereto.

The fixing position of the second bus bar clamp 13 on the housing 10 is adjustable. The second bus bar holder 13 may be adjusted with respect to the bottom of the housing 10 by a predetermined distance, for example, by providing the positioning insertion holes 102 on the side plates of the housing 10 at a predetermined distance in the depth direction of the housing 10, the second bus bar holder 13 may be engaged to the appropriate positioning insertion holes 102 according to the specification of the bus bar 15 (particularly, the width of the bus bar 15), and then its positioning with respect to the housing 10 is achieved by the positioning members 104. Specifically, threaded holes are formed in two ends of the second bus clamp 13, and after the threaded holes of the second bus clamp 13 are aligned with the corresponding positioning insertion holes 102 in the shell 10, bolts are screwed into the threaded holes of the second bus clamp 13 through the positioning insertion holes 102 in the shell 10, so that fastening is completed, and accordingly the positioning of the second bus clamp 13 relative to the shell 10 is achieved.

When a bus bar 15 of another specification is to be adapted, the positioning insertion hole 102 of the width of the bus bar 15 satisfying such specification may be selected to fix the second bus bar holder 13. The adjustment of the position of the second bus bar clamp 13 along the depth of the housing 10 within the cavity 100 of the housing 10 can meet the space requirement of bus bars 15 of different specifications having different widths. Meanwhile, the first bus bar holder 12 disposed on the cover body 11 and the second bus bar holder 13 disposed on the housing 10 achieve accurate and firm positioning of the bus bar 15 by the mutual fitting of the clamping portions (grooves 16) corresponding to each other.

As shown in fig. 4, the positioning insertion holes 102 on the housing 10 are arranged in groups along the length direction of the housing 10. For the three-size bus bar 15 to be used herein, three rows of positioning insertion holes 102 may be provided on the housing 10 (for the sake of viewing, only one row of positioning insertion holes 102 is shown in the figure). The distance of the three rows of positioning holes 102 from the bottom of the housing 10 can be predetermined as desired. For one column of the positioning insertion holes 102, the plurality of second bus bars 13 may individually engage the corresponding positioning insertion holes 102 in turn, or the plurality of second bus bars 13 may be configured in parallel as an integral structure at predetermined intervals, so that it is more convenient and time-saving when the second bus bars 13 are engaged to the same column of the positioning insertion holes 102.

The side plates of the housing 10 may also be provided with guide grooves along the depth direction of the housing 10, and the second bus bar 13 may be slid to a desired position along the guide grooves as needed, and then stopped from further moving by a stopper provided on the housing 10 to be fixed to the housing 10. Of course, the second bus bar clips 13 integrally configured in parallel at predetermined intervals may also be joined to the housing 10 based on the same manner. The number of bus-bar clamps and the distance between two adjacent bus-bar clamps can be chosen based on the actual need, usually with the following requirements: the bus bar clamp secures the bus bar rows 15 so that adjacent bus bars do not bend due to forces between each other caused by the current magnetic field after current passes through them. The second bus bar clamp 13, which is constructed as a one-piece structure, is particularly advantageous for changing positions relative to the housing 10, which has the advantage of being easier and quicker to handle. An example of the second bus bar clamp 13 being constructed as a unitary structure is for example by fixing a plurality of second bus bar clamps 13 to an additional side plate, for example by gluing, snapping etc. the second bus bar clamps 13 to the additional side plate, and then fixing the second bus bar clamps 13 relative to the housing 10 by means of bolts sequentially passing through the side plate and the threaded holes in the side of the second bus bar clamps 13.

As shown in fig. 4 and 7, the bus bar row 15 as described above includes a first bus bar 150 and a second bus bar 152, which may also be referred to as a vertical bus bar and a branch bus bar, respectively. Herein, the first bus bar clamp 12 and the second bus bar clamp 13 are positioned with respect to a vertical bus bar (i.e., the first bus bar 150). The first bus bar 150 is disposed inside the housing 10 along a length direction of the housing 10, and the second bus bar 152 is disposed perpendicular to the first bus bar 150 and extends out of the housing 10 at an upper end of the housing 10 for connecting other electrical components (such as a main bus bar).

Further, referring to fig. 12, the aforementioned end caps 14 disposed at the upper and lower ends of the housing 10 have the stopper regions 142 partitioned by the ribs 140, and the first bus bars 150 of the bus bar 15 are partitioned by the ribs 140 and accommodated in the respective stopper regions 142. The clamping and securing of the first busbar 150 by the end caps 14 at the upper and lower ends of the housing 10 further assists and enhances the positioning of the first busbar 150 by the busbar clamp. Further, the upper and lower caps may have the same structure, which facilitates production and may achieve versatility of parts.

The upper end of the housing 10 is provided with fixing grooves 106 (specifically, the fixing grooves 106 are located on both side plates of the housing 10), and the end cap 14 coupled thereto is provided with snap members 144 (e.g., lugs), and the end cap 14 is fixed to the housing 10 by the cooperation of the fixing grooves 106 and the snap members 144. The fixing groove 106 at the upper end of the housing 10 may be configured as a catching groove opened upward in the length direction of the housing 10. It will be appreciated by those skilled in the art that the positions of the retaining groove 106 and the latch member 144 can be interchanged, but this is required without affecting the retaining effect of the end cap 14 and the latch groove. The lower end of the housing 10 is also provided with a fixing groove 106, and the end cap 14 coupled thereto is provided with snap-in members 144 at both sides thereof, and the end cap 14 is fixed to the housing 10 by the cooperation of the snap-in members 144 and the fixing groove 106. The fixing groove 106 at the lower end of the housing 10 may be configured as a catching groove opened toward the front end of the housing 10 in the depth direction of the housing 10. Likewise, the positions of the snap members 144 of the lower end cap and the retaining slots 106 in the lower end of the housing 10 may be reversed, which provides an alternative means of engaging the end cap 14 with the retaining slots. Other alternatives and modifications will be apparent to those skilled in the art based on the teachings herein provided for the manner of engagement of the housing 10 with the end cap 14, and are within the scope hereof. The fixing groove 106 at the upper end of the case 10 may be configured as a U-shaped catching groove, and the fixing groove 106 at the lower end of the case 10 may be configured as an L-shaped catching groove.

The utility model provides an above-mentioned distribution bus-bar system is suitable for the generating line row of multiple specification, need not to increase extra part and carry out under the condition of extensive structure transformation to it, changes the distance of second generating line clamp for the casing bottom to form the space that is applicable to corresponding specification generating line row size between two generating line clamps, through adjusting the position that second generating line clamp is in casing depth direction promptly, can satisfy the space demand that the generating line of different specifications was arranged.

While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention can be modified by incorporating any number of variations, alterations, substitutions or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the invention. Additionally, while various embodiments of the invention have been described, it is to be understood that aspects of the invention may include only some of the embodiments. Accordingly, the invention is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.

Claims (10)

1. A distribution busbar system (1), characterized in that the distribution busbar system (1) comprises:

a housing (10), the housing (10) having a cavity (100);

a cover (11), the cover (11) engaging the housing (10);

a first bus bar clamp (12), the first bus bar clamp (12) being arranged on the cover body (11);

a second bus bar clamp (13) received in the cavity (100) and configured to be mountable to the housing (10) at a predetermined distance relative to the first bus bar clamp (12) to meet space requirements for receiving bus bars (15) of different specifications, the first bus bar clamp (12) and the second bus bar clamp (13) cooperating to positionally define the bus bars (15).

2. The distribution bus system (1) of claim 1, wherein a plurality of positioning receptacles (102) are provided on the housing (10), the second bus bar clip (13) being secured to the housing (10) with a positioning member (104) passing through the positioning receptacles (102), the second bus bar clip (13) being selectively engageable to the positioning receptacles (102) in different positions relative to the housing (10).

3. The distribution bus system (1) of claim 1, wherein a guide slot is provided on the housing (10), and the second bus bar clamp (13) is configured to be slidable relative to the guide slot and stopped in a predetermined position by a stop that engages the guide slot, thereby accommodating bus bar rows (15) of different specifications.

4. The distribution busbar system (1) according to claim 1, characterized in that the first busbar clip (12) and the second busbar clip (13) each have a recess (16) and the busbar (15) is positionally defined by the corresponding mating of the respective recesses (16) with each other.

5. The distribution bus bar system (1) of claim 1, wherein a plurality of said second bus bar clips (13) are connected in parallel at predetermined intervals to each other to be integrated and mounted to said housing (10).

6. The distribution bus system (1) of claim 1, wherein the bus bar row (15) comprises a first bus bar (150) and a second bus bar (152), the first bus bar (150) being held in place by the first bus bar clamp (12) and the second bus bar clamp (13), the second bus bar (152) extending out of the housing (10) for connection to other electrical components.

7. The power distribution bus system (1) of claim 1 wherein said power distribution bus system (1) further comprises an end cap (14), said housing (10) having two ends respectively engaging said end cap (14) to enclose said first bus bar (150) within said cavity (100), said second bus bar (152) extending out of said housing (10).

8. The distribution bus system (1) of claim 7 wherein the end cap (14) has a containment area (142) separated by ribs (140) to separate a first bus bar (150) while separating a second bus bar (152) attached to the first bus bar (150) at one end of the first bus bar (150).

9. The distribution bus system (1) of claim 7, wherein the end cap (14) and the housing (10) engage each other with a snap fit (144) and a retaining groove (106).

10. The distribution bus bar system (1) of claim 1, wherein the first bus bar clip (12) is press fit onto the cover (11) and is provided with a socket on a side thereof remote from the bus bar (15) for engaging other electrical components.

Images