An adjustable busbar for use in a distribution cabinet

Abstract

This utility model discloses an adjustable busbar for use in a power distribution cabinet, belonging to the technical field of auxiliary installation equipment for electrical components. It includes a strip-shaped outer frame; a through-cavity is provided in the middle of the outer frame along its length; a strip-shaped groove communicating with the cavity is opened on one end face of the outer frame; a guide groove is opened on the end face of the cavity opposite to the strip-shaped groove; a movable locking head is installed in the cavity; a guide protrusion cooperating with the guide groove is opened at the lower bottom of the movable locking head; a pair of wing plates are also provided on the end side of the movable locking head facing the strip-shaped groove; the wing plates are correspondingly supported on the top side inside the cavity; a sliding groove is provided on the movable locking head at the position opposite to the strip-shaped groove; the nut part of the bolt used to connect the busbar is placed in the sliding groove, and the nut part can move on the sliding groove. This utility model solves the problem that the current busbar structure cannot meet the needs of bolts of different specifications, has poor interchangeability, and indirectly increases installation and management costs.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary installation equipment for electrical components, and specifically to an adjustable busbar for use in a power distribution cabinet. Background Technology

[0002] In distribution cabinets, busbars often serve as the main trunk of transmission lines, distributing the transformer's electrical energy to various branch circuits. Depending on specific needs and usage scenarios, busbars often have various structural designs. For example, the domestic patent application number 2023204086415, published on March 7, 2023, entitled "A Busbar for Distribution Cabinets," provides a busbar with a sliding groove that allows bolts to move along the length of the groove, thereby changing the position of the branch. However, in practical use, it has been found that because the dimensions of the sliding groove are fixed, only a specific type of bolt can be used with the busbar. Since the specifications of the branch and bolts used in distribution cabinets can vary depending on requirements, distribution cabinet manufacturers can only use one type of busbar with one type of bolt connector when assembling the cabinet. This not only results in poor interchangeability but also increases installation and management costs; this is the main problem currently faced. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an adjustable busbar for use in power distribution cabinets, so as to solve the problem that the current busbar structure cannot meet the needs of bolts of different specifications, has poor interchangeability, and indirectly increases the installation and management cost.

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] An adjustable busbar for use in a distribution cabinet includes a strip-shaped outer frame; a through cavity is provided in the middle of the outer frame along its length; a strip-shaped groove communicating with the cavity is opened on one end face of the outer frame; a guide groove is opened on the end face of the cavity opposite to the strip-shaped groove; a movable locking head is installed in the cavity; a guide protrusion that cooperates with the guide groove is opened at the lower bottom of the movable locking head; a pair of wing plates are also provided on the end side of the movable locking head facing the strip-shaped groove; the wing plates are correspondingly supported on the top side of the cavity; a sliding groove is provided on the movable locking head at the position opposite to the strip-shaped groove; the nut part of the bolt for connecting the busbar is placed in the sliding groove, and the nut part can move on the sliding groove.

[0006] Preferably, the cross-sectional shape of the outer frame is similar to that of the C-shaped steel; the strip groove is located at the middle position on one side end of the outer frame.

[0007] Preferably, the guide groove is positioned at the center of the bottom surface of the cavity, directly opposite the strip groove, and the width of the guide groove is greater than the width of the strip groove.

[0008] Preferably, the cross-section of the movable clamp head is a U-shaped structure, with the recess in the middle serving as the slide groove; the guide ridge is set in a stepped manner on the bottom end face of the movable clamp head; the distance between the two protruding ends of the movable clamp head is greater than the width of the slide groove, and the wing plate is set on the two protruding ends of the movable clamp head.

[0009] Preferably, the wing plate is a folded plate structure with an L-shaped cross-section, and its bent part is correspondingly locked at the corner position of the cavity.

[0010] Furthermore, a limiting plate is provided on both sides of the cavity of the outer frame at the position corresponding to the end of the wing plate; the width of the limiting plate is greater than the thickness of the wing plate, and the end of the wing plate is set on the limiting plate.

[0011] Preferably, the movable clamp head is provided with several models, and the size of the sliding groove on the movable clamp head is different for different models; the nut part of the bolt used to connect the support row and the sliding groove adopt a transition fit.

[0012] Preferably, the outer frame and the movable card head are both made of the same conductive material.

[0013] The beneficial effects of this utility model are:

[0014] This invention designs a busbar whose assembly form can be adjusted to accommodate different bolt sizes. It constructs a frame structure from a conventional busbar, with guide grooves within the frame's cavity. Movable clips with guide protrusions of different specifications can be detachably installed inside the frame via these guide protrusions. The bolt ends are placed in the grooves on the movable clips facing the outer frame, thus facilitating the installation of components such as supports. Compared to existing grooved busbars, this invention employs a frame structure that is lighter and easier to install. The movable clips also serve as supports for the inner cavity of the outer frame, ensuring both electrical stability and overall structural strength. Furthermore, for bolts of different sizes, interchangeability can be achieved quickly by changing the movable clips within the inner cavity, ensuring rapid installation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention in an embodiment;

[0016] Figure 2 This is a three-dimensional structural diagram of the outer frame in this embodiment;

[0017] Figure 3 This is a schematic diagram of the structure of the active card head in this embodiment;

[0018] Explanation of reference numerals in the attached drawings: 1. Outer frame, 2. Cavity, 3. Strip groove, 4. Guide groove, 5. Movable locking head, 6. Limiting locking platform, 51. Guide protrusion, 52. Slide groove, 53. Wing plate. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] Example:

[0021] Reference Figure 1 ,

[0022] This embodiment provides an adjustable busbar for use in a power distribution cabinet; it includes a strip-shaped outer frame 1; a through cavity 2 is provided in the middle of the outer frame 1 along its length; a strip-shaped groove 3 communicating with the cavity 2 is opened on one end face of the outer frame 1; a guide groove 4 is opened on the end face of the cavity 2 opposite to the strip-shaped groove 3; a movable locking head 5 is installed in the cavity 2; a guide protrusion 51 cooperating with the guide groove 4 is opened on the lower bottom of the movable locking head 5; a pair of wing plates 53 are also provided on the end side of the movable locking head 5 facing the strip-shaped groove 3; the wing plates 53 are correspondingly supported on the top side inside the cavity 2; a sliding groove 52 is provided on the movable locking head 5 at the position opposite to the strip-shaped groove 3; the nut part of the bolt for connecting the busbar is placed in the sliding groove 52, and the nut part can move on the sliding groove 52. In this embodiment, the width of the strip groove 3 is not less than the width of the slide groove 52; this allows the slide groove 52 to be exposed through the strip groove 3, facilitating the insertion and operation of bolts and nuts. The cooperation between the guide ridge 51 and the guide groove 4 not only limits the movement direction of the movable clamp 5, but also provides stable support to prevent it from tilting or getting stuck in the cavity 2.

[0023] The cross-sectional shape of the outer frame 1 is similar to that of the C-shaped steel; the strip groove 3 is located at the middle of one side end of the outer frame 1.

[0024] Preferably, the guide groove 4 is positioned in the middle of the bottom surface of the cavity 2, directly opposite the strip groove 3, and the width of the guide groove 4 is greater than the width of the strip groove 3. This width requirement provides sufficient insertion and sliding space for the guide protrusion 51 of the movable card head 5.

[0025] The movable latch 5 has a U-shaped cross-section, with the central notch serving as the slide groove 52. A stepped guide rib 51 is positioned on the bottom surface of the movable latch 5. The distance between the two protruding ends of the movable latch 5 is greater than the width of the slide groove 52. Wing plates 53 are positioned on the two protruding ends of the movable latch 5. The U-shaped design provides the movable latch 5 with a certain degree of rigidity and strength. The stepped design of the guide rib 51 enhances its guiding accuracy and stability in conjunction with the guide groove 4, preventing the movable latch 5 from wobbling up and down within the cavity 2. The greater distance between the two protruding ends of the movable latch 5 than the width of the slide groove 52 ensures that the wing plates 53 can effectively support the top side of the cavity within the outer frame 1.

[0026] The wing plate 53 is an L-shaped folded plate structure, with its bent portion corresponding to the corner position of the cavity 2. The L-shaped folded plate structure of the wing plate 53 can provide a more reliable support effect.

[0027] Limiting brackets 6 are also provided on both sides of the cavity 2 of the outer frame 1 at positions corresponding to the ends of the wing plates 53. The width of the limiting bracket 6 is greater than the thickness of the wing plate 53, and the end of the wing plate 53 rests on the limiting bracket 6. The limiting brackets are used to restrict the movement of the wing along the depth direction of the strip groove, thereby providing a more stable support effect. The limiting bracket 6 cooperates with the end of the wing plate 53 of the L-shaped folded plate structure, effectively restricting the degree of freedom of the movable clamp 5 in the direction perpendicular to the length of the busbar. This constraint ensures that during the bolt tightening process, the movable clamp 5 will not shift or come out in the direction of the opening of the strip groove 3 due to force, greatly enhancing the stability and reliability of the entire connection structure, and enabling the bolt tightening force to be effectively transmitted to the outer frame 1.

[0028] The movable clamp 5 is available in several models, each with a different size of the sliding groove 52. The nut portion of the bolt used to connect the support structure and the sliding groove 52 employ a transition fit. The availability of various movable clamp 5 models with different sliding groove 52 sizes allows for selection of the appropriate model based on the nut size of the support structure connecting bolts used on-site. The transition fit between the sliding groove 52 and the bolt nut portion ensures smooth sliding of the nut within the sliding groove 52 for position adjustment, while also providing a certain holding force when the bolt is initially inserted, preventing it from easily falling off and facilitating subsequent nut installation.

[0029] Both the outer frame 1 and the movable latch 5 are made of the same conductive material. In this embodiment, the movable latch 5, the guide ridge 51, and the wing plate 53 are obtained through an integral molding process; the outer frame 1 and the movable latch 5 are made of conductive aluminum alloy.

[0030] When using the utility model device in this embodiment, it is only necessary to first select the movable clamp 5 corresponding to the size of the slide groove 52 according to the specifications of the support bolts; after aligning the guide protrusion 51 of the movable clamp 5 with the guide groove 4 from the opening side, push the movable clamp 5 horizontally into the cavity 2; then move the movable clamp 5 to the target installation position; place the nut of the support connecting bolt corresponding to the slide groove 52, so that the bolt part of the support connecting bolt passes through the strip groove 3, and then tighten the bolt with a nut to complete the support installation. When it is necessary to change the bolt specifications, it is only necessary to pull out the current movable clamp 5 along the guide groove 4 and replace it with the model corresponding to the size of the slide groove, without disassembling the outer frame 1.

Claims

1. An adjustable busbar for use in a power distribution cabinet, characterized in that: It includes a strip-shaped outer frame (1); a through cavity (2) is provided in the middle of the outer frame (1) along its length; a strip groove (3) communicating with the cavity (2) is opened on one end face of the outer frame (1); a guide groove (4) is opened on the end face of the cavity (2) opposite to the strip groove (3); a movable locking head (5) is installed in the cavity (2); a guide protrusion (51) cooperating with the guide groove (4) is opened at the bottom of the movable locking head (5); a pair of wing plates (53) are also provided on the end side of the movable locking head (5) facing the strip groove (3); the wing plates (53) are correspondingly supported on the top side of the cavity (2); a sliding groove (52) is provided on the movable locking head (5) at the position opposite to the strip groove (3); the nut part of the bolt used to connect the support is placed in the sliding groove (52), and the nut part can move on the sliding groove (52).

2. An adjustable busbar for use in a distribution cabinet according to claim 1, characterized in that: The cross-sectional shape of the outer frame (1) is similar to that of the C-shaped steel; the strip groove (3) is located at the middle of one side end of the outer frame (1).

3. An adjustable busbar for use in a distribution cabinet according to claim 2, characterized in that: The guide groove (4) is located in the middle of the bottom surface of the cavity (2) opposite the strip groove (3), and the width of the guide groove (4) is greater than the width of the strip groove (3).

4. An adjustable busbar for use in a distribution cabinet according to claim 1, characterized in that: The cross-section of the movable clamp (5) is a U-shaped structure, and the recess in the middle is the slide groove (52); the guide ridge (51) is set in a stepped manner on the bottom end face of the movable clamp (5); the distance between the two protruding ends of the movable clamp (5) is greater than the width of the slide groove (52), and the wing plate (53) is set on the two protruding ends of the movable clamp (5).

5. An adjustable busbar for use in a distribution cabinet according to claim 1, characterized in that: The wing plate (53) is a folded plate structure with an L-shaped cross section, and its bent part is corresponding to the corner position of the cavity (2).

6. An adjustable busbar for use in a distribution cabinet according to claim 5, characterized in that: A limiting plate (6) is also provided on both sides of the cavity (2) of the outer frame (1) at the position corresponding to the end of the wing plate (53); the width of the limiting plate (6) is greater than the thickness of the wing plate (53), and the end of the wing plate (53) is placed on the limiting plate (6).

7. An adjustable busbar for use in a distribution cabinet according to claim 1, characterized in that: The movable clamp (5) is available in several models, and the size of the sliding groove (52) on the movable clamp (5) is different for different models; the nut part of the bolt used to connect the support row is fitted with the sliding groove (52).

8. An adjustable busbar for use in a distribution cabinet according to claim 1, characterized in that: The outer frame (1) and the movable card head (5) are both made of the same conductive material.

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