Bus system

Abstract

The utility model relates to a bus system which comprises an upper bus bar, a middle bus bar and a lower bus bar, each bus bar comprises a bus bar and a plurality of branch buses which are integrally formed, and the bus system also comprises a plurality of shells, connecting pieces and two positioning covers which are made of insulating materials, the busbars are sequentially sleeved with the shells and the connecting pieces in the length direction of the busbars, the connecting pieces correspond to the branch busbars, the branch busbars extend out of the connecting pieces, every two adjacent shells are connected through the connecting pieces, a plurality of first heat dissipation holes are formed in the side walls of the shells, the connecting pieces are arranged at the two ends of each busbar, and the first heat dissipation holes are communicated with the first heat dissipation holes. And the two positioning covers are provided with three slots, the connecting pieces at the end parts of the bus bars are inserted into the corresponding slots, and the end surfaces of the positioning covers are provided with a plurality of second heat dissipation holes. By adopting the above technical scheme, according to the bus system provided by the utility model, the shell and the positioning cover are provided with the heat dissipation holes, and the intervals are arranged between the bus bars, so that the heat dissipation effect is improved.

Description

Technical Field

[0001] This utility model relates to busbar structure, and more particularly to a busbar system. Background Technology

[0002] Distribution cabinets contain various low-voltage electrical appliances, such as circuit breakers, relays, contactors, and fuses. In the past, these were generally connected by wires, which was a complex wiring method with poor safety performance. Currently, busbars are generally used instead. Busbars have the advantages of easy installation and good safety performance, and are therefore widely used.

[0003] There is a Chinese invention patent application with publication number CN108879542A, which discloses an insulated enclosed busbar system and its manufacturing method, including...

[0004] The upper busbar, middle busbar, and lower busbar are vertically stacked from top to bottom and made of conductive material. Each busbar is integrally formed by a return busbar and several branch busbars, with the branch busbars located on one side of the busbar.

[0005] The slot is integrally molded with insulating material and includes a top cavity, a middle cavity, and a bottom cavity that are matched with the upper busbar, middle busbar, and lower busbar by upper and lower layers. Each busbar of the upper busbar, middle busbar, and lower busbar is set in the corresponding cavity, and each branch busbar of the upper busbar, middle busbar, and lower busbar extends out of the slot. The upper and lower layers separate the busbars.

[0006] Connector 1 is integrally formed with the slot, connecting the upper and lower layers vertically together, and is located on the slot side where the branch busbar extends out.

[0007] The plug cover, made of insulating material, is installed on the slot and seals the slot and busbar inside;

[0008] Connector 2 is set on the plug cover, integrally formed with the plug cover, and matches connector 1. The connection between the slot and the plug cover is achieved through the connection of connector 1 and connector 2.

[0009] In the aforementioned busbar system, the upper, middle, and lower busbars are all stacked together. When installed in the slot, the busbars fit snugly against the corresponding cavity, making it impossible to dissipate heat effectively. Moreover, the only ventilation holes are on the plug cover, resulting in poor overall heat dissipation. Utility Model Content

[0010] The purpose of this utility model is to overcome the defects of the prior art by providing a busbar system that not only has heat dissipation holes on the outer shell and positioning cover, but also has phase spacing between each busbar to improve the heat dissipation effect.

[0011] The technical solution of this utility model is as follows: A busbar system includes an upper busbar, a middle busbar, and a lower busbar arranged sequentially from top to bottom. Each busbar includes an integrally formed busbar and several branch busbars. Each branch busbar is located on one side of the busbar. The system also includes several outer shells, connectors, and two positioning covers made of insulating material. Each outer shell and connector is sequentially fitted onto the busbar along its length. The connectors are arranged corresponding to the branch busbars, and the branch busbars extend out of the connectors. Adjacent outer shells are connected by the connectors. Several first heat dissipation holes are provided on the side walls of the outer shells. Each busbar has a connector at both ends. Three slots are sequentially provided on the two positioning covers from top to bottom. The connectors at the ends of each busbar are inserted into the corresponding slots. The branch busbars are located outside the positioning covers. There are gaps between the busbars. Several second heat dissipation holes are provided on the end faces of the positioning covers.

[0012] Using the above technical solution, each busbar is fitted with several outer shells and connectors. Adjacent outer shells are connected by connectors, which correspond to the branch busbar positions. The branch busbars extend beyond the connectors, facilitating connection between the branch busbars and other components. The outer shells and connectors can be installed according to the number of branch busbars, eliminating the need for a single integrated design and allowing for more flexible use. A first heat dissipation hole is provided on the side wall of the outer shell, allowing heat from each busbar to dissipate. After the outer shell and connectors are installed on each busbar, both ends are assembled into a whole by positioning covers. The positioning covers ensure spacing between the busbars, with the same phase spacing between adjacent busbars, further improving heat dissipation, preventing heat accumulation, and preventing electrical conduction between the busbars. A second heat dissipation hole is also provided on the end face of the positioning cover for all-around heat dissipation.

[0013] A further feature of this utility model is that the outer shell includes a first upper shell and a first lower shell that are separately configured. The first upper shell is provided with a plurality of first connecting holes or first connecting posts, and the first lower shell is provided with a plurality of first connecting posts or first connecting holes. The first connecting posts are inserted into the corresponding first connecting holes to realize the connection between the first upper shell and the first lower shell. The first heat dissipation holes are provided on the front and rear side walls of the first upper shell and the first lower shell.

[0014] Further configuration: The connector includes a second upper shell and a second lower shell that are separately configured. The second upper shell is provided with a plurality of second connecting holes or second connecting posts, and the second lower shell is provided with a plurality of second connecting posts or second connecting holes. The second connecting posts are inserted into the corresponding second connecting holes to realize the connection between the second upper shell and the second lower shell.

[0015] With the above-mentioned further design, the outer shell and connectors are all designed as separate parts, which facilitates installation. After the upper and lower shells are placed on the upper and lower sides of the busbar, they are fastened together. After fastening, the upper and lower shells are interference fit, the structure is firm and not easy to separate.

[0016] A further feature of this invention is that positioning bosses are provided on the inner top wall and inner bottom wall at both ends of the outer shell, and a connecting groove is formed between the positioning bosses and the inner top wall and inner bottom wall of the outer shell, with the end of the connector located in the connecting groove.

[0017] With the above-mentioned further configuration, the end of the connector is inserted into the slot to achieve the connection between the connector and the housing, and the positioning boss can limit the connector to prevent its displacement.

[0018] A further feature of this invention is that the inner top wall and inner bottom wall of the outer shell are provided with a plurality of first positioning ribs. When the outer shell is fitted over the busbar, each of the first positioning ribs presses against the upper and lower end faces of the busbar.

[0019] Further configuration: Several second positioning ribs are provided on the inner top wall and inner bottom wall of the connector. When the connector is sleeved outside the busbar, each second positioning rib presses against the upper and lower end faces of the busbar.

[0020] With the above-mentioned further design, the positioning ribs can not only position the busbars vertically to improve stability and prevent them from moving, but also allow for gaps between the upper and lower end faces of the busbars and the housing, rather than complete contact, thus improving heat dissipation.

[0021] A further feature of this invention is that the second upper housing is provided with a positioning groove or a positioning block, and the second lower housing is provided with a positioning block or a positioning groove. When the second upper housing and the second lower housing are connected, the positioning block is located in the positioning groove.

[0022] The above-mentioned further design facilitates the installation of the second upper shell and the second lower shell, making installation convenient and quick, and can play a positioning role to avoid misalignment during installation.

[0023] A further feature of this invention is that each upper branch busbar on the upper busbar is set lower than the upper busbar, and each upper branch busbar is connected to the upper busbar by a first bending piece. The connector sleeved outside the upper busbar is provided with a first receiving groove adapted to the first bending piece. The first bending piece is located in the first receiving groove, and the upper branch busbar passes through the first receiving groove.

[0024] Further configuration: Each lower branch busbar on the lower busbar is set higher than the upper busbar. Each lower branch busbar is connected to the lower busbar through a second bending piece. The connector sleeved outside the lower busbar is provided with a second receiving groove adapted to the second bending piece. The second bending piece is located inside the second receiving groove, and the lower branch busbar passes through the second receiving groove.

[0025] Further configuration: Each branch busbar on the middle busbar is on the same horizontal line as the middle busbar. The connector fitted on the middle busbar is provided with a third receiving groove, and the branch busbar passes through the third receiving groove.

[0026] With the above-mentioned further configuration, after the upper, middle and lower busbars are installed, the upper branch busbar, the middle branch busbar and the lower branch busbar are on the same horizontal plane, saving space and facilitating the connection of branch busbars to other components. The setting of the receiving slot can also support the branch busbars and make their structure stable. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model;

[0028] Figure 2 This is a cross-sectional view of a specific embodiment of the present utility model;

[0029] Figure 3 for Figure 2 Enlarged view of section A;

[0030] Figure 4 This is a schematic diagram of each busbar in a specific embodiment of the present utility model;

[0031] Figure 5 This is a front view of a specific embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the busbar, outer shell, and connecting parts in a specific embodiment of this utility model;

[0033] Figure 7 This is a schematic diagram of the busbar, outer shell, and connecting parts in a specific embodiment of this utility model;

[0034] Figure 8 This is a schematic diagram of the busbar, housing, and connectors in a specific embodiment of this utility model;

[0035] Figure 9 A schematic diagram of a connector fitted onto the upper busbar in a specific embodiment of this utility model;

[0036] Figure 10 This is an exploded view of the connector in a specific embodiment of the present utility model;

[0037] Figure 11This is a schematic diagram of the outer shell of a specific embodiment of the present utility model;

[0038] Figure 12 This is an exploded view of the outer shell of a specific embodiment of the present invention;

[0039] Figure 13 This is a schematic diagram of one of the positioning covers in a specific embodiment of the present utility model;

[0040] Figure 14 This is a schematic diagram of another positioning cover in a specific embodiment of the present invention.

[0041] In the diagram, 1. Upper busbar; 11. Upper busbar; 12. Upper branch busbar; 13. First bent piece; 2. Middle busbar; 21. Middle busbar; 22. Middle branch busbar; 3. Lower busbar; 31. Lower busbar; 32. Lower branch busbar; 33. Second bent piece; 4. Outer shell; 41. First heat dissipation hole; 42. First upper shell; 43. First lower shell; 44. First connecting hole; 45. First connecting post; 46. Positioning boss; 47. Connecting groove; 48. First positioning rib; 5. Connector; 51. Second upper shell; 52. Second lower shell; 53. Second connecting hole; 54. Second connecting post; 55. Second positioning rib; 56. Positioning groove; 57. Positioning block; 58. First receiving groove; 59. Second receiving groove; 50. Third receiving groove; 6. Positioning cover; 61. Slot; 62. Second heat dissipation hole. Detailed Implementation

[0042] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0044] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0046] like Figure 1-14 As shown, a busbar system includes an upper busbar 1, a middle busbar 2, and a lower busbar 3 arranged sequentially from top to bottom. Each busbar includes an integrally formed busbar and several branch busbars. Each branch busbar is located on one side of the busbar. The system also includes several outer shells 4, connectors 5, and two positioning covers 6 made of insulating material. Each outer shell 4 and connector 5 is sequentially fitted onto the busbar along its length. The connectors 5 correspond to the branch busbars, with the branch busbars extending beyond the connectors 5. Adjacent outer shells 4 are connected by the connectors 5. Several first heat dissipation holes 41 are provided on the sidewalls of the outer shells 4. Each busbar has a connector 5 at both ends. Three slots 61 are sequentially provided on the two positioning covers 6 from top to bottom. The connectors 5 at the ends of each busbar are inserted into the corresponding slots 61. Because the ends of each busbar are not on the same horizontal line, the depths of the slots 61 are inconsistent. The branch busbars are located outside the positioning covers 6. Each busbar has a gap between it. The end face of the positioning cover 6 has several second heat dissipation holes 62. Each busbar is fitted with several outer shells 4 and connectors 5. Adjacent outer shells 4 are connected by connectors 5. The connectors 5 correspond to the positions of the branch busbars. The branch busbars extend out of the connectors 5 to facilitate the connection of the branch busbars with other components. The outer shells 4 and connectors 5 can be installed according to the number of branch busbars, instead of being a single piece, making them more flexible to use. The side wall of the outer shell 4 has first heat dissipation holes 41 so that the heat of each busbar can be dissipated from the first heat dissipation holes 41. After the outer shells 4 and connectors 5 are installed on each busbar, the two ends are assembled into a whole by the positioning cover 6. The positioning cover 6 provides a gap between each busbar, and the phase spacing between adjacent busbars is the same, which further improves the heat dissipation effect, avoids heat accumulation, and prevents the busbars from conducting electricity to each other. At the same time, the end face of the positioning cover 6 is also provided with second heat dissipation holes 62 for all-round heat dissipation.

[0047] The outer casing 4 includes a first upper casing 42 and a first lower casing 43, which are separately configured. The first upper casing 42 is provided with a plurality of first connecting holes 44 or first connecting posts 45, and the first lower casing 43 is provided with a plurality of first connecting posts 45 or first connecting holes 44. The first connecting posts 45 are inserted into the corresponding first connecting holes 44 to connect the first upper casing 42 and the first lower casing 43. Alternatively, the first upper casing 42 may have first connecting holes 44 and the first lower casing 43 may have first connecting posts 45, or the first upper casing 42 may have first connecting posts 45 and the first lower casing 43 may have first connecting holes 44. The first upper casing 42 and the first lower casing 43 may both have first connecting posts 45 and first connecting holes 44. The first upper casing 42 and the first lower casing 43 are provided with the aforementioned first heat dissipation holes 41 on their front and rear side walls. The first upper casing 42 may have half of the heat dissipation holes, and the first lower casing 43 may have the other half. After the upper and lower casings are assembled, a complete structure is formed. The first heat dissipation hole 41; the connector 5 includes a second upper shell 51 and a second lower shell 52 that are separately arranged. The second upper shell 51 is provided with a plurality of second connecting holes 53 or second connecting posts 54, and the second lower shell 52 is provided with a plurality of second connecting posts 54 or second connecting holes 53. The second connecting posts 54 are inserted into the corresponding second connecting holes 53 to realize the connection between the second upper shell 51 and the second lower shell 52. The outer shell 4 and the connector 5 are both separately arranged, which is convenient for installation. After the upper and lower shells are placed on the upper and lower sides of the busbar, they are fastened together. After fastening, the upper and lower shells are interference fit, the structure is firm, and it is not easy to separate. The second upper shell 51 is provided with a positioning groove 56 or a positioning block 57, and the second lower shell 52 is provided with a positioning block 57 or a positioning groove 56. When the second upper shell 51 and the second lower shell 52 are connected, the positioning block 57 is located in the positioning groove 56, which facilitates the installation of the second upper shell 51 and the second lower shell 52. The installation is convenient and quick, and it can play a positioning role to avoid misaligned installation.

[0048] Positioning bosses 46 are provided on the inner top and bottom walls at both ends of the outer casing 4. A connecting groove 47 is formed between the positioning bosses 46 and the inner top and bottom walls of the outer casing 4. The end of the connector 5 is located in the connecting groove 47 and is inserted into the slot 61 to connect the connector 5 to the outer casing 4. The positioning bosses 46 can limit the connector 5 to prevent it from shifting. Several first positioning ribs 48 are provided on the inner top and bottom walls of the outer casing 4. When the outer casing 4 is fitted outside the busbar, each first positioning rib 48 presses against the upper and lower end faces of the busbar. Several second positioning ribs 55 are provided on the inner top and bottom walls of the connector 5. When the connector 5 is fitted outside the busbar, each second positioning rib 55 presses against the upper and lower end faces of the busbar. The positioning ribs can not only position the busbar vertically to improve stability and prevent it from moving, but also allow a gap between the upper and lower end faces of the busbar and the casing, rather than a complete fit, to improve heat dissipation.

[0049] Each upper branch busbar 12 on the upper busbar 1 is set lower than the upper busbar 11. Each upper branch busbar 12 is connected to the upper busbar 11 via a first bending piece 13. The connector 5, sleeved outside the upper busbar 1, is provided with a first receiving groove 58 adapted to the first bending piece 13. The first bending piece 13 is located inside the first receiving groove 58, and the upper branch busbar 12 extends out of the first receiving groove 58. Each lower branch busbar 32 on the lower busbar 3 is set higher than the upper busbar 11. Each lower branch busbar 32 is connected to the lower busbar 31 via a second bending piece 33. The connector 5, sleeved outside the lower busbar 3, is provided with a second receiving groove adapted to the second bending piece 33. 59. The second bending piece is located inside the second receiving groove 59, and the lower branch busbar 32 passes through the second receiving groove 59. Each middle branch busbar 22 on the middle busbar 2 is on the same horizontal line as the middle busbar 21. The connector 5 sleeved on the middle busbar 2 is provided with a third receiving groove 50. The middle branch busbar 22 passes through the third receiving groove 50. After the upper, middle and lower busbars 3 are installed, the upper branch busbar 12, the middle branch busbar 22 and the lower branch busbar 32 are on the same horizontal plane, saving space and facilitating the connection of the branch busbars to other components. The setting of the receiving groove and the third receiving groove 50 can also support the branch busbars, making their structure stable, and can also protect the branch busbars.

Claims

1. A busbar system comprising, from top to bottom, an upper busbar (1), a middle busbar (2), and a lower busbar (3), each busbar comprising an integrally formed busbar and several branch busbars, each branch busbar being located on one side of the busbar, characterized in that, It also includes several outer shells (4), connectors (5) and two positioning covers (6) made of insulating material. Each outer shell (4) and connector (5) is sequentially fitted outside the busbar along the length of the busbar. The connector (5) is set corresponding to the branch busbar. The branch busbar extends out of the connector (5). Adjacent outer shells (4) are connected by the connector (5). Several first heat dissipation holes (41) are provided on the side wall of the outer shell (4). The connector (5) is provided at both ends of each busbar. Three slots (61) are sequentially provided on the two positioning covers (6) from top to bottom. The connector (5) at the end of each busbar is inserted into the corresponding slot (61). The branch busbar is located outside the positioning cover (6). There is a gap between each busbar. Several second heat dissipation holes (62) are provided on the end face of the positioning cover (6).

2. The busbar system according to claim 1, characterized in that, The outer shell (4) includes a first upper shell (42) and a first lower shell (43) that are separately configured. The first upper shell (42) is provided with a plurality of first connecting holes (44) or first connecting posts (45). The first lower shell (43) is provided with a plurality of first connecting posts (45) or first connecting holes (44). The first connecting posts (45) are inserted into the corresponding first connecting holes (44) to realize the connection between the first upper shell (42) and the first lower shell (43). The first heat dissipation holes (41) are provided on the front and rear side walls of the first upper shell (42) and the first lower shell (43).

3. The busbar system according to claim 2, characterized in that, The connector (5) includes a second upper housing (51) and a second lower housing (52) that are separately configured. The second upper housing (51) is provided with a plurality of second connecting holes (53) or second connecting posts (54). The second lower housing (52) is provided with a plurality of second connecting posts (54) or second connecting holes (53). The second connecting posts (54) are inserted into the corresponding second connecting holes (53) to realize the connection between the second upper housing (51) and the second lower housing (52).

4. The busbar system according to claim 3, characterized in that, Positioning bosses (46) are provided on the inner top wall and inner bottom wall at both ends of the outer shell (4). A connecting groove (47) is formed between the positioning bosses (46) and the inner top wall and inner bottom wall of the outer shell (4). The end of the connector (5) is located in the connecting groove (47).

5. The busbar system according to any one of claims 1-4, characterized in that, The inner top wall and inner bottom wall of the outer shell (4) are provided with a number of first positioning ribs (48). When the outer shell (4) is fitted outside the busbar, each first positioning rib (48) presses against the upper and lower end faces of the busbar.

6. The busbar system according to claim 3, characterized in that, The second upper housing (51) is provided with a positioning groove (56) or a positioning block (57), and the second lower housing (52) is provided with a positioning block (57) or a positioning groove (56). When the second upper housing (51) and the second lower housing (52) are connected, the positioning block (57) is located in the positioning groove (56).

7. The busbar system according to any one of claims 1-4, characterized in that, The inner top wall and inner bottom wall of the connector (5) are provided with several second positioning ribs (55). When the connector (5) is sleeved outside the busbar, each second positioning rib (55) presses against the upper and lower end faces of the busbar.

8. The busbar system according to any one of claims 1-4, characterized in that, Each upper branch busbar (12) on the upper busbar (1) is set lower than the upper busbar (11). Each upper branch busbar (12) is connected to the upper busbar (11) through a first bending piece (13). The connector (5) sleeved outside the upper busbar (1) is provided with a first receiving groove (58) that is adapted to the first bending piece (13). The first bending piece (13) is located inside the first receiving groove (58), and the upper branch busbar (12) passes through the first receiving groove (58).

9. The busbar system according to any one of claims 1-4, characterized in that, Each lower branch busbar (32) on the lower busbar (3) is set higher than the upper busbar (11). Each lower branch busbar (32) is connected to the lower busbar (31) through a second bending piece (33). The connector (5) sleeved outside the lower busbar (3) is provided with a second receiving groove (59) that is adapted to the second bending piece (33). The second bending piece (33) is located inside the second receiving groove (59), and the lower branch busbar (32) passes through the second receiving groove (59).

10. The busbar system according to any one of claims 1-4, characterized in that, Each branch busbar (22) on the middle busbar (2) is on the same horizontal line as the middle busbar (21). The connector (5) fitted on the middle busbar (2) is provided with a third receiving groove (50), and the branch busbar passes through the third receiving groove (50).

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