Bus box for power distribution cabinet

Abstract

The utility model provides a bus box for a power distribution cabinet, and belongs to the technical field of power distribution cabinets. Comprising an upper box body and a lower box body, sealing strips are fixed to the surfaces of the upper box body and the lower box body, the two sealing strips are attached to each other, the sides, close to a bus bar, of the sealing strips are attached to the surface of the bus bar, the upper box body and the lower box body are connected through hasps, and positioning strips are fixed to the surfaces of the upper box body and the lower box body. The inner wall of the positioning strip is fixedly connected with the surface of the sealing strip, and side face plugging pieces are arranged on the side faces of the upper box body and the lower box body. According to the utility model, through the arrangement of the sealing strips and the side surface plugging members, the sealing strips are used for sealing between the upper box body and the lower box body and between the upper box body and the lower box body and the bus bars, the side surface plugging members are used for sealing between two adjacent wires on the bus bars, and through the cooperation of the sealing strips and the side surface plugging members, the joint of the two bus bars is completely sealed. Therefore, the sealing capability of the bus box is improved.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to a busbar box for power distribution cabinets. Background Technology

[0002] High-voltage switchgear is often composed of multiple switchgear units. Adjacent switchgear units are usually connected by busbars to transmit current. At the joint of two adjacent busbars, there is usually a busbar box. The busbar box is made of insulating material and is used to seal the joint of the two busbars, thereby protecting the joint of the two busbars.

[0003] In common distribution cabinets, the busbar box is used to cover the joints of two busbars to achieve a seal at the joints. However, even when the busbar box is covering the joints, there are still gaps between adjacent conductors on the busbars. The sealing capability of the busbar box needs to be improved. Therefore, this application provides a busbar box for distribution cabinets to meet the requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a busbar box for a power distribution cabinet to address the technical issue that the sealing capability of the busbar box needs to be improved.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A busbar box for a power distribution cabinet includes an upper box and a lower box. Sealing strips are fixed to the surfaces of both the upper and lower boxes, with the two sealing strips abutting against each other. The side of the sealing strip closest to the busbar is abutting against the surface of the busbar. The upper and lower boxes are connected by a snap fastener. Positioning strips are fixed to the surfaces of both the upper and lower boxes, with the inner wall of the positioning strip fixedly connected to the surface of the sealing strip. Side sealing components are provided on the sides of both the upper and lower boxes. Each side sealing component includes several rubber strips fixed to the side of the sealing strip closest to the busbar. The sides of the rubber strips are abutting against the sides of the conductors on the busbar, with the opposite ends of adjacent rubber strips abutting against each other.

[0007] Preferably, a fixing block is fixed to the side of the upper box body, a locking block is fixed to the side of the lower box body, and an insert is fixed to the bottom of the fixing block, with the insert inserted into the locking block.

[0008] Preferably, the bottom of the positioning strip is a downward-curved surface.

[0009] Preferably, the fixing block is in the shape of a right trapezoid.

[0010] Preferably, a handle is fixed to the top of the upper box and the bottom of the lower box, and an anti-slip groove is provided on the side of the handle.

[0011] Preferably, a rubber insert is fixed to the bottom of the upper rubber strip, and a slot is provided on the top of the lower rubber strip, into which the rubber insert is inserted.

[0012] Preferably, the side of the rubber insert has an inclined guide surface near the bottom.

[0013] Preferably, a square strip is embedded inside the rubber strip, and the end of the square strip is fixedly connected to the inner wall of the positioning strip.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] In the above solution, the sealing strip and the side sealing component are used to seal the upper and lower boxes and the upper and lower boxes with the busbars. The side sealing component is used to seal the two adjacent conductors on the busbars. Through the cooperation of the sealing strip and the side sealing component, the joint of the two busbars is completely sealed, thereby improving the sealing capability of the busbar box.

[0016] By using the insert strip, after the upper box covers the lower box, the insert strip is inserted into the locking block on the lower box to achieve positioning between the upper and lower boxes, preventing misalignment and ensuring a stable and reliable seal between the upper and lower boxes at the two busbar connectors. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a front view of the insert of this utility model;

[0020] Figure 3 This is a right sectional view of the insert of this utility model;

[0021] Figure 4 This is a right-hand cross-sectional view of the rubber strip of this utility model.

[0022] [reference numerals]

[0023] 1. Upper box body; 2. Lower box body; 3. Sealing strip; 4. Positioning strip; 5. Side sealing component; 51. Rubber strip; 52. Rubber insert; 53. Slot; 6. Fixing block; 7. Locking block; 8. Insert strip; 9. Handle; 10. Square strip.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. Detailed Implementation

[0025] The present invention provides a busbar box for a power distribution cabinet, which will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0026] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0027] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0028] like Figure 1-Figure 4As shown, an embodiment of this utility model provides a busbar box for a power distribution cabinet, including an upper box body 1 and a lower box body 2. Sealing strips 3 are fixed to the surfaces of both the upper box body 1 and the lower box body 2. The two sealing strips 3 are fitted together, with the side of the sealing strip 3 closest to the busbar fitting against the surface of the busbar. The sealing strips 3 are used for sealing between the upper box body 1 and the lower box body 2, as well as sealing the connection between the upper box body 1 and the lower box body 2 and the busbar. The upper box body 1 and the lower box body 2 are connected by a snap fastener. Fastening the snap fastener connects the upper box body 1 and the lower box body 2; unfastening the snap fastener removes the upper box body 1 and the lower box body 2 from the busbar connection. Positioning strips 4 are fixed to the surfaces of both the upper box body 1 and the lower box body 2, with the inner wall of the positioning strip 4 fixed to the surface of the sealing strip 3. The connection and positioning strip 4 are used to prevent the sealing strip 3 from deforming under force. The sides of the upper box 1 and the lower box 2 are provided with side sealing parts 5. The side sealing parts 5 include several rubber strips 51 fixed to the side of the sealing strip 3 near the busbar. The sides of the rubber strips 51 are in contact with the sides of the conductors on the busbar, and the opposite ends of two adjacent rubber strips 51 are in contact with each other. The rubber strips 51 are of different sizes. The rubber strips 51 located at the outermost edge of the busbar are larger, and the rubber strips 51 located between two adjacent conductors on the busbar are smaller. The rubber strips 51 are used to seal the guide on the busbar. The sealing ability of the joint on the busbar is improved by the cooperation of the sealing strip 3 and the side sealing parts 5, thereby improving the sealing effect of the joint on the busbar.

[0029] like Figure 2 As shown, in this embodiment, a fixing block 6 is fixed to the side of the upper box 1, and a locking block 7 is fixed to the side of the lower box 2. An insert 8 is fixed to the bottom of the fixing block 6. The insert 8 is inserted into the locking block 7. After the upper box 1 and the lower box 2 are attached, the upper box 1 drives the insert 8 at the bottom of the fixing block 6 to insert into the locking block 7. The positioning of the upper box 1 and the lower box 2 is achieved through the cooperation of the insert 8 and the locking block 7, preventing misalignment between the upper box 1 and the lower box 2 from affecting the sealing of the two busbar connectors.

[0030] like Figure 2 As shown, in this embodiment, the bottom of the positioning strip 4 is a downward curved surface, which facilitates the insertion of the positioning strip 4 into the card block 7, thereby facilitating the positioning of the upper box 1 and the lower box 2.

[0031] like Figure 1 and Figure 3 As shown, in this embodiment, the fixing block 6 is in the shape of a right trapezoid. The shape of the right trapezoid effectively prevents the fixing block 6 from deforming under force, thereby improving the deformation resistance of the fixing block 6 during use.

[0032] like Figure 2 As shown in this embodiment, a handle 9 is fixed to the top of the upper box 1 and the bottom of the lower box 2. The handle 9 has an anti-slip groove on its side, which makes it easy to pick up the upper box 1 and the lower box 2.

[0033] like Figure 4 As shown, in this embodiment, a rubber insert 52 is fixed at the bottom of the upper rubber strip 51, and a slot 53 is opened at the top of the lower rubber strip 51. The rubber insert 52 is inserted into the slot 53, which improves the tightness of the connection between the two rubber strips 51, thereby improving the sealing ability between the two rubber strips 51.

[0034] like Figure 4 As shown, in this embodiment, the side of the rubber insert 52 near the bottom is provided with an inclined guide surface, which facilitates the insertion of the rubber insert 52 into the slot 53, thereby facilitating the positioning between the upper and lower rubber strips 51.

[0035] like Figure 4 As shown, in this embodiment, a square strip 10 is embedded inside the rubber strip 51. The end of the square strip 10 is fixedly connected to the inner wall of the positioning strip 4. The square strip 10 is used to improve the structural strength of the rubber strip 51, reduce the deformation of the rubber strip 51, and ensure the stable fit between the rubber strip 51 and the conductor on the busbar.

[0036] Working principle: The upper box 1 and lower box 2 are placed over the joint of the two busbars and fastened with buckles. Two sealing strips 3 are fitted together between the upper box 1 and the lower box 2. The sealing strips 3 and the two busbars are fitted together to seal the upper box 1 and the lower box 2 with the busbars. At the same time, the rubber strips 51 on the two side sealing pieces 5 on the same side are fitted together with the conductors on the busbars. The upper and lower rubber strips 51 on the same side sealing pieces 5 are fitted together at opposite ends. The rubber plug 52 at the bottom of the upper rubber strip 51 is inserted into the slot 53 at the top of the lower rubber strip 51 to improve the sealing ability at the opposite ends of the upper and lower rubber strips 51. The side sealing pieces 5 are used to seal the two adjacent conductors on the busbars. Through the cooperation of the sealing strips 3 and the side sealing pieces 5, the joint of the two busbars is completely sealed, thereby improving the sealing ability of the busbar box.

[0037] To disassemble, open the latch, then pinch handle 9 to move the upper box 1 up, and pinch the other handle 9 to move the lower box 2 down. Remove the rubber strip 51 from between two adjacent conductors on the busbar.

[0038] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A busbar box for a power distribution cabinet, comprising an upper box body (1) and a lower box body (2), characterized in that, Sealing strips (3) are fixed on the surfaces of the upper box (1) and the lower box (2). The two sealing strips (3) are attached to each other, and the side of the sealing strip (3) near the busbar is attached to the surface of the busbar. The upper box (1) and the lower box (2) are connected by a buckle. Positioning strips (4) are fixed on the surfaces of the upper box (1) and the lower box (2). The inner wall of the positioning strip (4) is fixedly connected to the surface of the sealing strip (3). Side sealing parts (5) are provided on the sides of the upper box (1) and the lower box (2). The side sealing parts (5) include several rubber strips (51) fixed on the side of the sealing strip (3) near the busbar. The side of the rubber strip (51) is attached to the side of the conductor on the busbar, and the opposite ends of two adjacent rubber strips (51) are attached to each other.

2. The busbar box for a power distribution cabinet according to claim 1, characterized in that, The upper box (1) is fixed with a fixing block (6) on its side, and the lower box (2) is fixed with a card block (7) on its side. The bottom of the fixing block (6) is fixed with an insert (8), which is inserted into the card block (7).

3. The busbar box for a power distribution cabinet according to claim 2, characterized in that, The bottom of the positioning strip (4) is a downward-curved surface.

4. The busbar box for a power distribution cabinet according to claim 2, characterized in that, The fixing block (6) is a right trapezoid.

5. The busbar box for a power distribution cabinet according to claim 1, characterized in that, The top of the upper box (1) and the bottom of the lower box (2) are both fixed with handles (9), and anti-slip grooves are provided on the side of the handles (9).

6. The busbar box for a power distribution cabinet according to claim 1, characterized in that, A rubber insert (52) is fixed at the bottom of the upper rubber strip (51), and a slot (53) is opened at the top of the lower rubber strip (51), into which the rubber insert (52) is inserted.

7. The busbar box for a distribution cabinet according to claim 6, characterized in that, The rubber insert (52) has an inclined guide surface on its side near the bottom.

8. The busbar box for a power distribution cabinet according to claim 1, characterized in that, The rubber strip (51) has a square strip (10) embedded inside, and the end of the square strip (10) is fixedly connected to the inner wall of the positioning strip (4).

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