Installation structure of an insulated enclosed bus

Abstract

The application relates to the technical field of power distribution equipment, and discloses a mounting structure of an insulation closed bus, which comprises a shell, a bus bar and an insulation partition plate. Multiple mounting layers are arranged in the shell along the height direction at intervals. Bus grooves for mounting the bus bar are arranged in each mounting layer. The bus bar comprises multiple bus bars arranged along the height direction in sequence. Each bus bar is inserted into the corresponding bus groove. The insertion positions of the adjacent bus bars are arranged in the horizontal direction and are staggered with each other, so that the horizontal interval is formed between the adjacent bus bars. The insulation partition plate is arranged between each adjacent bus bar, and the insulation partition plate is detachably mounted on the outside of the shell. The bus bar structure arranged in the step type is arranged, the adjacent bus bars are kept in the insulation interval in the horizontal and vertical directions, the insulation partition plate is matched with the terminal, the sufficient creepage distance is ensured, and the risk of phase-to-phase short circuit is reduced.

Description

Technical Field

[0001] This invention relates to the field of power distribution equipment technology, specifically to an insulated and enclosed busbar installation structure. Background Technology

[0002] Busbar installation structure is a conductive connection structure used in low-voltage distribution cabinets. It is mainly used to transmit power from the power supply side to multiple power circuits. It typically includes busbars, insulating supports, and external protective structures. By centrally installing multiple sets of busbars, the centralized distribution of power within the power distribution system can be achieved.

[0003] In existing busbar structures, multiple busbars are typically installed in parallel or stacked vertically. However, this structure still has the following shortcomings in practical use: (1) The busbars are arranged in parallel on the same layer or simply arranged vertically. The main isolation between adjacent busbars is through insulation components. When the insulation components are not installed properly, are aged and damaged, or are affected by external forces, the distance between adjacent busbars is insufficient, resulting in a reduction in creepage distance and a risk of phase-to-phase short circuit. (2) In order to meet the connection requirements of different circuits, some busbars are usually spliced ​​with multiple sections of copper busbars or connected to terminals by bolts. During long-term operation, factors such as thermal expansion and contraction can easily cause the connecting bolts to loosen, resulting in increased contact resistance, heat generation and affecting conductivity. (3) Existing busbar trunking is usually designed according to fixed specifications. The number of busbars and their installation positions are fixed. When the actual power distribution needs change and the number of circuits needs to be increased or decreased, the overall structure often needs to be redesigned. It cannot be flexibly adjusted according to the needs and has poor adaptability. (4) The installation between the insulating partition and the busbar requires repeated manual adjustment of the position before fixing. The installation steps are cumbersome and the assembly efficiency is low. (5) The protective performance of the busbar structure is limited. Dust and moisture can easily enter the interior of the shell, affecting the insulation performance. When subjected to external impact, the internal busbar position can easily shift. Summary of the Invention

[0004] The purpose of this invention is to provide an insulated and enclosed busbar installation structure to solve the problems mentioned in the background art, such as easy short circuits, easy loosening of connection structure, difficulty in adjusting fixed installation specifications, assembly difficulties, and insufficient protection performance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an insulated and enclosed busbar installation structure, comprising a housing, busbars, and an insulating partition. Multiple installation layers are spaced apart along the height direction inside the housing. Each installation layer has a busbar groove for installing the busbars. The busbars include multiple busbars arranged sequentially along the height direction. Each busbar is inserted into a corresponding busbar groove. The insertion positions of adjacent busbars are staggered horizontally, creating a horizontal gap between adjacent busbars. The insulating partition is disposed between each of the adjacent busbars and is detachably installed on the outside of the housing.

[0006] As a further technical solution of the present invention, the busbar includes a first busbar, a second busbar, a third busbar and a fourth busbar, wherein the first busbar, the second busbar, the third busbar and the fourth busbar are respectively inserted into busbar slots at different height positions.

[0007] As a further technical solution of the present invention, the insertion positions of the first busbar, the second busbar, the third busbar and the fourth busbar are staggered along the length direction and the height direction of the housing, so that the multiple busbars form a stepped distribution structure.

[0008] As a further technical solution of the present invention, the insulating partition is attached to the side of the corresponding busbar to keep adjacent busbars insulated in the vertical direction, and the number of insulating partitions is set according to the number of busbars.

[0009] As a further technical solution of the present invention, a stepped structure is provided between the insulating partition and the busbar trough to cooperate with each other. The stepped structure includes positioning protrusions on both sides of the insulating partition and positioning grooves on the inner wall of the busbar trough. The positioning protrusions are embedded in the positioning grooves.

[0010] As a further technical solution of the present invention, the edge of the housing is provided with connecting bolts, and the corresponding positions of the insulating partition are all machined with screw holes. The connecting bolts pass through the closed insulating partition and are connected to the housing to press and fix the insulating partition onto the housing.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a stepped busbar structure, adjacent busbars maintain an insulation interval in both the horizontal and vertical directions, and with the help of insulating partitions to isolate terminals, sufficient creepage distance is ensured, and the risk of phase-to-phase short circuit is reduced; 2. By using a one-piece molded copper busbar, the conductivity is continuous and uninterrupted, avoiding poor contact caused by loose bolts in traditional multi-segment connections; 3. By setting up modular mounting housings and through-type busbar trunking, the number of mounting layers and busbar terminal blocks can be increased or decreased according to actual needs, so as to achieve flexible customization of busbar structures of different specifications. 4. By setting a stepped interlocking structure between the insulating partition and the busbar trunking, the insulating partition can be quickly positioned after installation and fixed by bolts. No complicated installation procedures are required, and a single person can install and operate it, improving installation efficiency. 5. By installing insulating partitions, the impact of external dust, moisture, and collisions on the busbar structure is reduced, thereby improving the overall protection level. Attached Figure Description

[0012] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the busbar distribution structure of the present invention; Figure 3 This is a front view of the housing structure of the present invention; Figure 4 This is a side view of the housing structure of the present invention; Figure 5 This is a front view schematic diagram of the first busbar structure of the present invention; Figure 6 This is a front view schematic diagram of the second busbar structure of the present invention; Figure 7 This is a front view schematic diagram of the third busbar structure of the present invention; Figure 8 This is a front view schematic diagram of the fourth busbar structure of the present invention.

[0013] In the diagram: 1. Housing; 2. Busbar; 3. Insulating partition; 101. Busbar trough; 102. Positioning groove; 201. First busbar; 202. Second busbar; 203. Third busbar; 204. Fourth busbar; 301. Positioning protrusion; 302. Connecting bolt. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1-8The present invention provides an embodiment of an insulated and enclosed busbar installation structure, comprising a housing 1, busbars 2, and an insulating partition 3. Multiple installation layers are spaced apart along the height direction inside the housing 1. Each installation layer has a busbar groove 101 for installing the busbars 2. The busbars 2 include multiple busbars 2 arranged sequentially along the height direction. Each busbar 2 is inserted into a corresponding busbar groove 101. The insertion positions of adjacent busbars 2 are staggered horizontally, forming a horizontal gap between adjacent busbars 2. The insulating partition 3 is disposed between each adjacent busbar 2 and is detachably installed on the outside of the housing 1. The busbar 2 includes a first busbar 201, a second busbar 202, a third busbar 203, and a fourth busbar 204. The first busbar 201, the second busbar 202, the third busbar 203, and the fourth busbar 204 are respectively inserted into busbar troughs 101 at different height positions. The insertion positions of the first busbar 201, the second busbar 202, the third busbar 203, and the fourth busbar 204 are staggered along the length and height directions of the housing 1, so that the multiple busbars 2 form a stepped distribution structure. The insulating partition 3 is attached to the side of the corresponding busbar 2 so that adjacent busbars 2 are kept insulated in the vertical direction. The number of insulating partitions 3 is set according to the number of busbars 2. Specifically, such as Figures 1-8 As shown, when this device is in use, the first busbar 201, the second busbar 202, the third busbar 203, and the fourth busbar 204 are respectively inserted into the busbar grooves 101 at the corresponding heights inside the mounting housing 1, so that each busbar 2 forms a stepped distribution structure along the height direction. The installation positions of adjacent busbars 2 are not only staggered from each other in the vertical direction, but also maintain a certain interval in the horizontal direction to avoid insufficient phase distance caused by different busbars 2 being in the same plane. Insulating partitions 3 are installed between adjacent busbars 2, so that the insulating partitions 3 are attached to the terminal side of the busbars 2 to insulate and separate each busbar 2, maintain the creepage distance and electrical clearance between adjacent busbars 2, and avoid short circuits caused by improper installation of insulating components or excessively close distance between adjacent busbars.

[0016] Furthermore, one end of busbar 2 is connected to the distribution switch, and the other end is connected to the corresponding power circuit to achieve centralized distribution of electrical energy.

[0017] Furthermore, busbar 2 is made of one-piece copper parts. There are no intermediate connection nodes between the main body of busbar 2 and the terminal feet, avoiding the problem of bolts loosening due to thermal expansion and contraction, and improving the stability of conductive connection.

[0018] Furthermore, the number of terminal pins on busbar 2 can be adjusted as a whole according to the actual number of power distribution circuits. By changing the number of terminal pins, it can adapt to the connection requirements of different numbers of electrical equipment without having to change the overall structure of the mounting housing 1, thus improving the adaptability and customization flexibility of the busbar structure.

[0019] An interlocking stepped structure is provided between the insulating partition 3 and the busbar trough 101. The stepped structure includes positioning protrusions 301 on both sides of the insulating partition 3 and positioning grooves 102 on the inner wall of the busbar trough 101. The positioning protrusions 301 are embedded in the positioning grooves 102. The edge of the housing 1 is provided with connecting bolts 302. The insulating partition 3 is machined with screw holes at corresponding positions. The connecting bolts 302 pass through the closed insulating partition 3 and connect to the housing 1 to press and fix the insulating partition 3 onto the housing 1. Specifically, such as Figures 1-8 As shown, during installation, firstly, select the corresponding number of mounting layers according to the required number of busbars 2, and then splice multiple mounting layers sequentially to form the mounting housing 1. The mounting layers are fixedly connected by a connecting structure, so that the mounting housing 1 forms a continuous and through busbar installation space. Then, insert the busbars 2 of different specifications into the corresponding busbar grooves 101 along the length direction of the mounting housing 1, so that the terminal feet of the busbars 2 extend out of the outside of the mounting housing 1, which is convenient for connecting with external switchgear and power circuits. Then, according to the terminal foot position of each busbar 2, install insulating partitions 3 on both sides of the busbars 2, so that the insulating partitions 3 are embedded in the corresponding positions, and are connected to the mounting housing 1 by connecting bolts 302 passing through the insulating partitions 3, pressing and fixing the insulating partitions 3, thereby completing the overall installation.

[0020] Furthermore, the mounting housing 1 and the insulating partition 3 are made of the same material, preferably flame-retardant reinforced polyamide PA66 material, which has good insulation performance, heat resistance and mechanical strength, improves the overall protection level and reduces the risk of insulation performance degradation caused by humid environment and dust ingress.

[0021] Furthermore, the mounting housing 1 can be configured with 2 to 4 mounting layers according to usage requirements. The busbar trunking 101 inside each mounting layer is arranged through the length direction to facilitate the installation of busbars 2 of different specifications and quantities. The mounting layers are combined and fixed by bolt connection to realize the modular expansion of the mounting structure.

[0022] Furthermore, the insulating partition 3 and the busbar trough 101 are provided with mutually cooperating positioning protrusions 301 and positioning grooves 102. When installing the insulating partition 3, the positioning protrusions 301 are embedded into the positioning grooves 102 to make the insulating partition 3 pre-positioned. During the installation process, it is not easy for it to shift, shake or deform. The installation is easy for a single person and improves the assembly efficiency.

[0023] Working principle: First, select the corresponding number of mounting layers according to the actual power distribution requirements, and assemble each mounting layer sequentially to form the mounting housing 1. Then, insert the first busbar 201, the second busbar 202, the third busbar 203, and the fourth busbar 204 into the busbar trough 101 of the corresponding height, so that each busbar 2 forms a stepped distribution structure along the height direction, and maintains a horizontal gap between adjacent busbars 2. Then, install the insulating partition 3 between adjacent busbars 2, so that the insulating partition 3 fits into the positioning groove 102 in the busbar trough 101 through the positioning protrusion 301. Positioning is achieved by pressing and fixing the insulating partition 3 onto the mounting housing 1 using connecting bolts 302, thus completing the insulation separation installation of the busbar 2. After installation, one end of the busbar 2 is connected to the power supply side switchgear, and the other end is connected to the corresponding power circuit, realizing centralized transmission of electrical energy. During operation, the horizontal spacing between the busbars 2 and the vertical isolation effect of the insulating partition 3 ensure that each circuit busbar maintains a stable insulation distance, preventing short circuits between different busbars 2. At the same time, the integrally formed busbar 2 maintains a continuous conductive path, improving the operational stability of the busbar system.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An insulated enclosed busbar installation structure, comprising a housing (1), a busbar (2), and an insulating partition (3), characterized in that: The housing (1) has multiple mounting layers spaced apart along the height direction inside. Each mounting layer has a busbar groove (101) for mounting busbars (2). The busbars (2) include multiple busbars (2) arranged sequentially along the height direction. Each busbar (2) is inserted into the corresponding busbar groove (101). The insertion positions of adjacent busbars (2) are staggered in the horizontal direction so that a horizontal gap is formed between adjacent busbars (2). The insulating partition (3) is disposed between each of the adjacent busbars (2), and the insulating partition (3) is detachably installed on the outside of the housing (1).

2. The installation structure of an insulated enclosed busbar according to claim 1, characterized in that: The busbar (2) includes a first busbar (201), a second busbar (202), a third busbar (203) and a fourth busbar (204), which are respectively inserted into busbar slots (101) at different heights.

3. The installation structure of an insulated enclosed busbar according to claim 2, characterized in that: The insertion positions of the first busbar (201), the second busbar (202), the third busbar (203) and the fourth busbar (204) are staggered along the length and height of the housing (1) so that the multiple busbars (2) form a stepped distribution structure.

4. The installation structure of an insulated enclosed busbar according to claim 1, characterized in that: The insulating partition (3) is attached to the side of the corresponding busbar (2) so that adjacent busbars (2) are kept insulated in the vertical direction. The number of insulating partitions (3) is set according to the number of busbars (2).

5. The installation structure of an insulated enclosed busbar according to claim 1, characterized in that: The insulating partition (3) and the busbar trough (101) are provided with a convex step structure that cooperates with each other. The convex step structure includes positioning protrusions (301) on both sides of the insulating partition (3) and positioning grooves (102) on the inner wall of the busbar trough (101). The positioning protrusions (301) are embedded in the positioning grooves (102).

6. The installation structure of an insulated enclosed busbar according to claim 1, characterized in that: The shell (1) is provided with connecting bolts (302) on its edge. The insulating partition (3) is provided with screw holes at corresponding positions. The connecting bolts (302) pass through the closed insulating partition (3) and connect to the shell (1) to press and fix the insulating partition (3) onto the shell (1).

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