CN220122286U - Three-phase busbar - Google Patents

Abstract

The utility model belongs to the technical field of low-voltage power distribution cabinets, and discloses a three-phase busbar. The three-phase busbar comprises three copper bars, plastic parts, flexible connecting parts and connectors, wherein one side of each copper bar is provided with a conducting bar, and the other side of each copper bar is provided with a connecting terminal for connecting with a miniature circuit breaker; the plastic part is provided with at least three inserting grooves which are arranged at intervals, the bottom of each inserting groove is provided with at least one inserting hole, each inserting hole is arranged in a staggered mode, three copper bars are respectively inserted into the three inserting grooves correspondingly, the guide bars penetrate through the inserting holes and are arranged on the outer side of the plastic part, and the notch of each inserting groove is provided with a limiting part which enables the copper bar to be arranged in each inserting groove and enables the copper bar to be abutted against the bottom of each inserting groove; three soft connecting pieces are arranged, and one end of each soft connecting piece is connected with the guide bar; the wiring terminal of the connector is connected with the other end of the flexible connecting piece. The three-phase busbar provided by the utility model can effectively improve the connection integration level between the copper bar and the connector.

Description

Three-phase busbar

Technical Field

The utility model relates to the technical field of low-voltage power distribution cabinets, in particular to a three-phase busbar.

Background

In the generation, transportation and use of electricity, power distribution is an extremely important link, for example, a plurality of loads are electrically connected with a power supply grid through a power distribution cabinet. Wherein, the switch board includes framework and detachably installs a plurality of block terminal in the framework, along the direction of height of framework, a plurality of block terminal range upon range of setting.

With the great development of the data center industry, integration of AC/DC cabinets is urgent. In the prior art, a connector and a three-phase copper bar in a power input structure cannot be integrated into a limited space, so that a branch topological structure, a terminal output and a system running state monitoring signal acquisition structure and the like cannot be integrated into a specific space.

Therefore, a three-phase bus is needed to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a three-phase busbar, which aims to effectively improve the connection integration level between a copper bar and a connector and the fixation stability of the copper bar.

To achieve the purpose, the utility model adopts the following technical scheme:

a three-phase bus bar comprising:

the copper bars are provided with three copper bars, one side of each copper bar is provided with a conducting bar, and the other side of each copper bar is provided with a connecting terminal used for being connected with the miniature circuit breaker;

the copper bar is inserted into the three inserting grooves respectively, the guide bars penetrate through the inserting holes and are arranged on the outer side of the plastic piece, and a limiting piece which enables the copper bar to be arranged in the inserting grooves and enables the copper bar to be abutted against the bottoms of the inserting grooves is arranged at the notch of each inserting groove;

the flexible connecting pieces are provided with three flexible connecting pieces, and one end of each flexible connecting piece is connected with the corresponding guide bar;

and the wiring end of the connector is connected with the other end of the flexible connecting piece.

Optionally, the three-phase busbar further comprises a shell, the plastic piece is arranged in the shell, and two ends of the plastic piece are respectively connected with the inner side wall of the shell through a bracket.

Optionally, the support includes interconnect's socket joint spare and connecting piece, the tip of plastic part with the socket joint spare is connected, the connecting piece with the casing is connected.

Optionally, the sleeve-joint piece include with the first nest plate that the connecting piece is connected, the one end of first nest plate is connected with the second nest plate, the other end of first nest plate is equipped with first card protruding, the second nest plate is kept away from the one end of first nest plate is equipped with the second card protruding, the second card protruding the second nest plate first nest plate with the first card protruding is enclosed to establish and is held the frame of working of plastics tip.

Optionally, one side of casing is equipped with first opening, connecting terminal orientation first opening sets up, be close to on the diapire in the casing first opening part is equipped with a plurality of intervals setting's separators, can hold between two adjacent separators miniature circuit breaker.

Optionally, the connector is disposed at the outer side of the housing, and one end of the connector penetrates through the housing to be connected with the other end of the flexible connecting piece.

Optionally, the connection terminals of the three copper bars are staggered, and the connection terminals of the three copper bars are flush.

Optionally, the height of the plastic part is 17mm-21mm.

Optionally, the flexible connection member includes a conductor and a cold-pressed pin connected to each other, the conductor is connected to the conductive bar by welding or crimping, and the cold-pressed pin is connected to the terminal of the connector by crimping.

Optionally, the limiting element comprises a barb, the barb is connected with the side wall of the inserting groove, and the hook part of the barb is arranged towards the groove bottom of the inserting groove.

The utility model has the beneficial effects that: according to the three-phase busbar provided by the utility model, the plastic part is provided with at least three inserting grooves which are arranged at intervals, at least one inserting hole is formed in the bottom of each inserting groove, each inserting hole is arranged in a staggered manner, and three copper bars are inserted into the three inserting grooves correspondingly, so that the layout is reasonable, and the plastic part can play a role in isolating each copper bar; one side of the copper bar is provided with a guide bar, the guide bar penetrates through the inserting hole and is arranged on the outer side of the plastic part, a limiting piece which enables the copper bar to be arranged in the inserting groove and enables the copper bar to be abutted against the bottom of the inserting groove is arranged at the notch of the inserting groove, the limiting piece can effectively prevent the copper bar from being separated from the inserting groove, the copper bar can be prevented from shaking in the inserting groove, and the fixing stability of the plastic part to the copper bar is improved; the conducting bar is connected with the connector through the flexible connecting piece, the other side of the copper bar is connected with the miniature circuit breaker, and the arrangement of the plastic piece can also effectively improve the connection integration level between the copper bar and the connector, so that the connector and the copper bar can be integrated into a limited space, and further, a branch topological structure, a terminal output and a system running state monitoring signal acquisition structure and the like can be integrated into a specific space.

Drawings

FIG. 1 is an exploded view of a three-phase bus bar provided by the present utility model;

FIG. 2 is an exploded view of the three-phase copper bar, plastic part and flexible connection part provided by the utility model when not assembled;

FIG. 3 is a schematic view of a plastic part according to the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of a plastic part from another perspective according to the present utility model;

fig. 6 is a schematic structural diagram of an a-phase copper bar provided by the utility model;

FIG. 7 is a schematic view of a flexible connection unit according to the present utility model;

FIG. 8 is a schematic view of the structure of the housing provided by the present utility model;

FIG. 9 is a schematic view of a structure of a stent according to the present utility model;

fig. 10 is a schematic structural view of a miniature circuit breaker provided by the present utility model;

fig. 11 is a schematic structural view of a connector provided by the present utility model.

In the figure:

100. a copper bar; 110. a phase A copper bar; 111. a first connection terminal; 120. phase B copper bars; 121. a second connection terminal; 130. a C-phase copper bar; 131. a third connection terminal;

200. a conducting bar; 210. a first guide bar; 220. a second guide bar; 230. a third guide bar;

300. a plastic member; 310. a first surface; 311. a plug-in groove; 3111. a plug hole; 320. a second surface; 330. a third surface; 340. a fourth surface; 350. a limiting piece;

400. a flexible connection member; 410. a first flexible connection unit; 420. a second flexible connection member; 430. a third flexible connection unit; 440. a conductor member; 450. cold-pressing needles;

500. a connector; 510. a connecting plate;

600. a housing; 610. a first opening; 620. a partition; 630. an extension plate;

700. a bracket; 711. a first sleeve plate; 712. a second set of plates; 713. the first clamping protrusion; 714. the second clamping protrusion; 720. a connecting piece; 721. a threaded hole;

800. a miniature circuit breaker; 810. a wire inlet;

900. a first screw; 1000. and a second screw.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a three-phase busbar for integrate three copper bars, three copper bars are A phase copper bar, B phase copper bar and C phase copper bar respectively to the auxiliary realization three copper bars is connected with other parts such as connector, in order to solve prior art because of the copper bar can't integrate in limited space with the connector, leads to branch topological structure, terminal output and system running state monitoring signal acquisition structure etc. unable integrated at specific space's problem.

As shown in fig. 1 to 11, the three-phase busbar comprises three copper bars 100, plastic members 300, flexible connection members and connectors 500, wherein each copper bar 100 is provided with a conducting bar 200 on one side of each copper bar 100, and a connection terminal for connecting with a miniature circuit breaker 800 is arranged on the other side; the plastic piece 300 is provided with at least three inserting grooves 311 which are arranged at intervals, the bottom of each inserting groove 311 is provided with at least one inserting hole 3111, each inserting hole 3111 is arranged in a staggered mode, three copper bars 100 are inserted into the three inserting grooves 311 respectively, the guide bars 200 penetrate through the inserting holes 3111 and are arranged on the outer side of the plastic piece 300, and a limiting piece 350 which enables the copper bars 100 to be arranged in the inserting grooves 311 and enables the copper bars 100 to be abutted against the bottoms of the inserting grooves 311 is arranged at the notch of each inserting groove 311; three soft connecting pieces 400 are arranged, and one end of each soft connecting piece 400 is connected with the corresponding conducting bar 200; the terminals of the connector 500 are connected to the other end of the flexible connection unit 400.

According to the three-phase busbar provided by the embodiment, the plastic piece 300 is arranged, the plastic piece 300 is provided with at least three inserting grooves 311 which are arranged at intervals, at least one inserting hole 3111 is formed in the bottom of each inserting groove 311, each inserting hole 3111 is arranged in a staggered mode, and three copper bars 100 are inserted into the three inserting grooves 311 respectively, so that the layout is reasonable, and the plastic piece 300 can play a role in isolating each copper bar 100; the guide bar 200 is arranged on one side of the copper bar 100, the guide bar 200 penetrates through the inserting hole 3111 and is arranged on the outer side of the plastic piece 300, the limiting piece 350 which enables the copper bar 100 to be arranged in the inserting groove 311 and enables the copper bar 100 to be abutted against the bottom of the inserting groove 311 is arranged at the notch of the inserting groove 311, the limiting piece 350 can effectively prevent the copper bar 100 from being separated from the inserting groove 311, the copper bar 100 can be prevented from shaking in the inserting groove 311, and the fixing stability of the plastic piece 300 to the copper bar 100 is improved; the conducting bar 200 is connected with the connector 500 through the flexible connecting piece 400, the other side of the copper bar 100 is connected with the miniature circuit breaker 800, and the plastic piece 300 is arranged, so that the connection integration level between the copper bar 100 and the connector 500 can be effectively improved, the connector 500 and the copper bar 100 can be integrated into a limited space, and further, a branch topological structure, a terminal output and a system running state monitoring signal acquisition structure and the like can be integrated into a specific space.

Specifically, the three copper bars 100 are the a-phase copper bar 110, the B-phase copper bar 120 and the C-phase copper bar 130, the three conductive bars 200 are the first conductive bar 210, the second conductive bar 220 and the third conductive bar 230, the first conductive bar 210 is disposed at one side of the a-phase copper bar 110, the second conductive bar 220 is disposed at one side of the B-phase copper bar 120, the third conductive bar 230 is disposed at one side of the C-phase copper bar 130, and the first conductive bar 210, the second conductive bar 220 and the third conductive bar 230 are disposed side by side in a staggered manner. Accordingly, the flexible connector 400 includes a first flexible connector 410, a second flexible connector 420 and a third flexible connector 430, and in order to reduce the space occupied by the flexible connector 400, the first flexible connector 410, the second flexible connector 420 and the third flexible connector 430 are all arranged like a serpentine shape.

In this embodiment, the flexible connection unit 400 includes a conductor 440 and a cold-pressed pin 450 connected to each other, wherein the conductor 440 is connected to the conductive strip 200 by welding or crimping, and the cold-pressed pin 450 is connected to the terminal of the connector 500 by crimping, so as to ensure effective connection between the conductive strip 200 and the connector 500.

The conductor 440 is provided as a flexible conductor which facilitates the connection between the cold-pressed needle 450 and the guide bar 200 in a limited space. The conductor 440 is preferably a copper braid, which is used as a conductor, and copper tubes are sleeved at both ends of the conductor, and the guide bar 200 or the cold-pressed needle 450 can be inserted into the copper tubes, so that connection is facilitated. Illustratively, the thickness of the conductor 440 is set to 2mm.

Optionally, the limiting member 350 includes a barb, the barb is connected with the side wall of the plugging slot 311, and the hook portion of the barb is disposed towards the bottom of the plugging slot 311, when the copper bar 100 shakes, the copper bar 100 can be inserted into the barb along the hook portion, and the barb can effectively prevent the copper bar 100 from falling out of the plugging slot 311.

Preferably, the height of the plastic 300 is 17mm-21mm, so that three copper bars 100 are integrated into the plastic 300 of smaller height, in order to facilitate further integration of other components. The height of the plastic 300 of this embodiment is preferably 19mm. In other embodiments, other values, such as 20mm, may be set as desired.

Optionally, the three-phase busbar further includes a housing 600, the plastic member 300 is disposed in the housing 600, and two ends of the plastic member 300 are respectively connected with an inner sidewall of the housing 600 through a bracket 700, and the housing 600 protects the plastic member 300 from damage caused by external environmental influences.

Further, the bracket 700 includes a socket and a connector 720 connected to each other, and the end of the plastic member 300 is connected to the socket, and the connector 720 is connected to the housing 600 to limit the plastic member 300, thereby preventing it from shaking or shifting, and improving the stability of the installation and use processes.

Specifically, the socket includes the first cover plate 711 that is connected with connecting piece 720, the one end of first cover plate 711 is connected with the second cover plate 712, the other end of first cover plate 711 is equipped with first card protruding 713, the one end that first cover plate 711 was kept away from to the second cover plate 712 is equipped with the protruding 714 of second card, second cover plate 712, first cover plate 711 and protruding 713 of first card enclose and establish the frame that holds the end of plastic part 300, the frame cover is established at the end of plastic part 300, the stability of socket and plastic part 300 connection has been improved.

In this embodiment, the plastic member 300 is configured as a rectangular parallelepiped, and the plastic member 300 specifically includes a first surface 310, a second surface 320, a third surface 330 and a fourth surface 340, the first sleeve plate 711 and the second sleeve plate 712 are disposed perpendicular to each other, the first clamping protrusion 713 and the second sleeve plate 712 are disposed parallel to each other, and the second clamping protrusion 714 and the first sleeve plate 711 are disposed parallel to each other. When sleeving, the sleeving part is sleeved from one end of the plastic part 300, the first clamping protrusion 713 is buckled on the first surface 310, the first sleeving plate 711 is attached to the second surface 320, the second sleeving plate 712 is attached to the third surface 330, and the second clamping protrusion 714 is buckled on the fourth surface 340, so that sleeving reliability is effectively ensured.

Preferably, the connection member 720 is provided at one side of the first set of plates 711 and is provided perpendicular to the first set of plates 711. After the sleeve joint piece is sleeved on the plastic piece 300, the connecting piece 720 is attached to the inner wall of the shell 600, at this time, two ends of the plastic piece 300 are all abutted to the inner wall of the shell 600, and the connecting piece 720 is connected with the shell 600 through the first threaded piece 900, so that the installation reliability of the plastic piece 300 is further improved. The connecting member 720 is specifically provided with a threaded hole 721, one end of the first threaded member 900 is screwed to the threaded hole 721, and the other end passes through a corresponding connecting hole on the housing 600, so that the operation is convenient.

In this embodiment, a first opening 610 is disposed at one side of the housing 600, the connection terminals are disposed towards the first opening 610, a plurality of spacers 620 are disposed on the bottom wall of the housing 600 near the first opening 610 at intervals, and the miniature circuit breaker 800 can be accommodated between two adjacent spacers 620. When the miniature circuit breaker 800 is installed, the miniature circuit breaker 800 can be inserted into the shell 600 along the partition 620 from the first opening 610, and the connection terminal arranged on the other side of the copper bar 100 is inserted into the wire inlet 810 of the miniature circuit breaker 800, so as to realize the connection between the copper bar 100 and the miniature circuit breaker 800. Alternating current is transmitted from the flexible connection 400 to the copper bar 100 and then from the copper bar 100 to the miniature circuit breaker 800, completing the incoming of current. The separator 620 may be a sheet metal flange or a bridge hole, so long as the guiding of the insertion process of the micro breaker 800 can be achieved, and the present embodiment is not limited thereto. In addition, the case 600 may be provided as a metal or plastic material as needed.

Optionally, a second opening is provided at the top of the housing 600, and an extension plate 630 is provided at an edge of the sidewall of the housing 600 near the second opening, where the extension plate 630 is parallel to the bottom wall of the housing 600, and the extension plate 630 is used for connecting with other cover plates to close the housing 600 after the plastic 300, the connector 500, and other components are mounted.

Alternatively, the connection terminals of the three copper bars 100 are staggered, and the connection terminals of the three copper bars 100 are flush, so as to improve the convenience of inserting the wire inlet 810 of the miniature circuit breaker 800. In the present embodiment, the connection terminals on the three copper bars 100 are respectively named as a first connection terminal 111, a second connection terminal 121 and a third connection terminal 131, that is, the other side of the a-phase copper bar 110 is bent to form a plurality of first connection terminals 111, the other side of the b-phase copper bar 120 is bent to form a plurality of second connection terminals 121, the other side of the c-phase copper bar 130 is bent to form a plurality of third connection terminals 131, and the first connection terminals 111, the second connection terminals and the third connection terminals 131 are arranged on the same straight line.

When the connector 500 is mounted, the connector 500 is disposed outside the housing 600, and one end of the connector 500 is inserted through the housing 600 to be connected with the other end of the flexible connection 400. Of course, the connector 500 is provided with three ports corresponding to the flexible connectors 400 respectively, so as to realize three-phase connection. The connector 500 in the present embodiment may be replaced by a through terminal, and may be set as needed.

Specifically, the connector 500 has a connection plate 510, when the connector is mounted, the connection plate 510 is attached to the outer wall of the housing 600, and the second screw 1000 is connected to the housing 600 through the connection plate 510, so that the operation is easy.

The installation process of the three-phase busbar provided by the embodiment comprises the following steps:

s1, respectively inserting the A-phase copper bar 110, the B-phase copper bar 120 and the C-phase copper bar 130 into corresponding splicing grooves 311 and abutting against the bottoms of the splicing grooves 311, respectively penetrating the first guide bar 210, the second guide bar 220 and the third guide bar 230 out of corresponding splicing holes 3111, connecting the guide bar 200 with one end of a flexible connecting piece 400 through crimping or welding, and mounting a cold-pressing needle 450 at the other end of the flexible connecting piece 400;

s2, sleeving the sleeve part on the end part of the plastic part 300, wherein both ends of the plastic part 300 are abutted against the inner wall of the shell 600, and the connecting part 720 is connected with the shell 600 through the first threaded part 900 to fix the plastic part 300;

s3, one end of the connector 500 is penetrated and fixed on the shell 600, and the cold-pressed needle 450 is inserted into the port of the connector 500;

s4, the miniature circuit breaker 800 is pushed into the housing 600, and the first connection terminal 111, the second connection terminal 121 and the third connection terminal 131 are inserted into the wire inlet 810 of the miniature circuit breaker 800.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Three-phase busbar, its characterized in that includes:

the copper bars (100) are provided with three copper bars, one side of each copper bar (100) is provided with a conducting bar (200) respectively, and the other side of each copper bar is provided with a connecting terminal for connecting with the miniature circuit breaker (800);

the copper bar (100) is correspondingly inserted into the three inserting grooves (311) respectively, the guide bar (200) penetrates through the inserting holes (3111) and is arranged on the outer side of the plastic piece (300), and a limiting piece (350) for enabling the copper bar (100) to be arranged in the inserting grooves (311) and enabling the copper bar (100) to be abutted against the bottoms of the inserting grooves (311) is arranged at the notch of the inserting grooves (311);

the flexible connecting pieces (400) are arranged in three, and one end of each flexible connecting piece (400) is connected with the corresponding guide bar (200);

and a connector (500), wherein a terminal of the connector (500) is connected with the other end of the flexible connection piece (400).

2. The three-phase busbar according to claim 1, further comprising a housing (600), wherein the plastic member (300) is disposed in the housing (600), and both ends of the plastic member (300) are respectively connected with an inner side wall of the housing (600) through brackets (700).

3. The three-phase busbar of claim 2, wherein the bracket (700) includes a socket and a connector (720) connected to each other, an end of the plastic member (300) is connected to the socket, and the connector (720) is connected to the case (600).

4. A three-phase busbar according to claim 3, wherein the socket comprises a first sleeve plate (711) connected with the connecting piece, one end of the first sleeve plate (711) is connected with a second sleeve plate (712), the other end of the first sleeve plate (711) is provided with a first clamping protrusion (713), one end of the second sleeve plate (712) away from the first sleeve plate (711) is provided with a second clamping protrusion (714), and the second clamping protrusion (714), the second sleeve plate (712), the first sleeve plate (711) and the first clamping protrusion (713) are surrounded to form a frame for accommodating the end part of the plastic piece (300).

5. The three-phase busbar according to claim 2, wherein a first opening (610) is provided on one side of the housing (600), the connection terminal is disposed towards the first opening (610), a plurality of spacers (620) disposed at intervals are provided on the bottom wall of the housing (600) near the first opening (610), and the miniature circuit breaker (800) can be accommodated between two adjacent spacers (620).

6. The three-phase busbar according to claim 2, wherein the connector (500) is disposed outside the case (600), and one end of the connector (500) is inserted through the case (600) to be connected with the other end of the flexible connection member (400).

7. The three-phase busbar according to any of claims 1 to 6, characterized in that the connection terminals of three copper bars (100) are staggered and the connection terminals of three copper bars (100) are arranged flush.

8. The three-phase busbar according to any of claims 1 to 6, wherein the plastic piece (300) has a height of 17mm to 21mm.

9. The three-phase busbar of any of claims 1-6, wherein the flexible connection member (400) comprises a conductor member (440) and a cold-pressed pin (450) connected to each other, the conductor member (440) and the bar (200) being connected by welding or crimping, the cold-pressed pin (450) being connected by crimping with a terminal of the connector (500).

10. The three-phase busbar of any of claims 1 to 6, wherein the stop (350) comprises a barb, the barb being connected to a side wall of the socket groove, and a hook portion of the barb being disposed toward a groove bottom of the socket groove (311).