A type of assembled composite busbar

Abstract

This utility model relates to the field of busbar technology, specifically an assembled composite busbar. A T-shaped plate is provided on the outer side of multiple sets of copper busbars and insulating layers. The end plates of the T-shaped plates are attached to the sidewalls of the copper busbars and insulating layers. The T-shaped plates are encapsulated within an encapsulation layer, and screws extending to the outer side of the encapsulation layer are provided on both the upper and lower sides of the T-shaped plates. Flexible buffer components are sleeved on the ends of the screws. The beneficial effects are: by adding horizontally placed T-shaped plates to the sidewalls of the existing busbar, the extended horizontal plates increase the strength and support of the encapsulation, preventing breakage. Simultaneously, the screws extending to the outer side of the encapsulation layer on the T-shaped plates connect to the padding layer, allowing the busbar to be suspended in mid-air. The padding layer supports the upper and lower sides of the busbar, reducing pressure on the circuit board and improving the stability of the circuit connection.

Description

Technical Field

[0001] This utility model relates to the field of busbar technology, specifically to an assembled composite busbar. Background Technology

[0002] A modular busbar is a conductive system composed of conductive bars (copper or aluminum), insulating supports, terminals, and protective covers. Its core functions include current transmission, signal acquisition (such as temperature and voltage), and series and parallel connection of battery cells.

[0003] Existing patent CN104767400A describes an L-shaped split composite busbar, comprising a lower split composite busbar composed of three layers of L-shaped busbars stacked in the same direction, and an upper split composite busbar composed of two layers of flat busbars stacked together. Insulating material is filled between adjacent busbars. The lower split composite busbar has interfaces for connecting circuit devices, and an AC output terminal is led out from one of the L-shaped busbar layers. The L-shaped split composite busbar of this invention replaces the DC busbar, reducing loop inductance and improving the reliability of IGBT operation; it replaces the main circuit cable connection, simplifying the layout and improving reliability; it reduces the system's size and weight, facilitating the repair and maintenance of the main circuit.

[0004] In existing busbars, the conductive bars are mostly made of copper, and the copper bars are fixedly connected by bolts. In order to achieve the connection between the busbar and the circuit board, reduce the mutual influence between circuits, and achieve insulation distribution, the busbar is usually encapsulated and insulated, and connection positions are reserved to realize the circuit connection. However, in the actual encapsulation process, due to the large number of copper bars and the high thickness after stacking, the sidewall of the encapsulation needs to be extended to wrap it. However, the strength of the encapsulation layer is reduced after extension, and it is very easy to break. Moreover, when the encapsulated busbar is connected to the circuit board, it faces the side of the circuit board where a large number of capacitors, resistors and other electrical components are installed. The two are prone to compression, causing the components to fall off. Utility Model Content

[0005] The purpose of this invention is to provide an assembled composite busbar to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An assembled composite busbar includes a busbar assembly, which is composed of multiple sets of copper busbars and insulating layers stacked alternately. The outer side of the busbar assembly is encapsulated by an insulating encapsulation layer. An external connector for output connection is provided on one side of the busbar assembly. The busbar assembly is provided with multiple sets of input terminals connected to the circuit board. A T-shaped plate is provided on the outer side of the multiple sets of copper busbars and insulating layers. The end plate of the T-shaped plate is attached to the sidewall of the copper busbars and insulating layers. The T-shaped plate is wrapped in the encapsulation layer, and screws extending to the outer side of the encapsulation layer are provided on both the upper and lower sides of the T-shaped plate. A flexible buffer component is sleeved on the end of the screw.

[0008] Preferably, the copper busbar and the insulating layer are bonded by hot-dip coating, and the input end on the busbar assembly is provided with multiple sets of through electrical sockets, in which I-shaped sleeves are provided to fix and clamp the multi-layer copper busbar.

[0009] Preferably, the circuit board is provided with connecting posts that are plugged into electrical sockets and electrically connected to multiple sets of copper busbars.

[0010] Preferably, the flexible buffer assembly includes an upper pad and a lower pad, both of which are made of insulating flexible rubber, and the lower pad is pressed onto the circuit board.

[0011] Preferably, the screw is disposed on the transverse extension plate of the T-shaped plate, and both the upper and lower pads are provided with screw holes that are threadedly connected to the screw.

[0012] Preferably, the screw hole on the upper pad is a through hole, and the screw hole on the lower pad is a countersunk hole.

[0013] Preferably, T-shaped plates are provided on all four sides of the busbar assembly, and adjacent T-shaped plates are connected by multiple sets of elastic and taut ropes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention adds a horizontally placed T-shaped plate to the side wall of the existing busbar, thereby increasing the strength and support of the encapsulation by extending the horizontal plate and avoiding breakage. At the same time, a screw extending to the outside of the encapsulation layer is set on the T-shaped plate, and the screw connects to the pad layer, so that the busbar can be suspended in the air. The pad layer supports the upper and lower sides of the busbar, reducing the pressure on the circuit board and improving the stability of the circuit connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 3This is a three-dimensional structural diagram of the T-shaped plate of this utility model.

[0019] In the diagram: 1. Busbar assembly; 2. Copper busbar; 3. Insulation layer; 4. Encapsulation layer; 5. T-shaped plate; 6. Screw; 7. Upper pad post; 8. Lower pad post; 9. Tensioner cord; 10. Circuit board; 11. Connecting post; 12. External connector; 13. Electrical socket; 14. Screw hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3 This utility model provides a technical solution:

[0022] Example 1: An assembled composite busbar includes a busbar assembly 1, which is composed of multiple sets of copper busbars 2 and insulating layers 3 stacked alternately. The outer side of the busbar assembly 1 is encapsulated by an insulating encapsulation layer 4. An external connector 12 for output connection is provided on one side of the busbar assembly 1. The busbar assembly 1 is provided with multiple sets of input terminals connected to the circuit board 10. The copper busbars 2 and the insulating layers 3 are bonded by hot-dip coating. The input terminals on the busbar assembly 1 are provided with multiple sets of through-type electrical sockets 13. I-shaped sleeves for fixing and clamping multiple layers of copper busbars 2 are provided in the electrical sockets 13. The circuit board 10 is provided with connecting posts 11 that are inserted into the electrical sockets 13 and electrically connected to the multiple sets of copper busbars 2.

[0023] By setting the electrical socket 13 and the connecting post 11 to cooperate, the input circuit of the busbar assembly 1 is connected. By setting the external connector 12, the output circuit of the busbar assembly 1 is connected, thus forming the connection of the busbar assembly 1 in the circuit. By setting multiple sets of copper busbars 2 and insulating layers 3 alternately stacked, it is easy to adapt and adjust the quantity, thereby realizing the assembly of the conductive busbar and increasing the range of applicable applications.

[0024] A T-shaped plate 5 is provided on the outer side of the multiple sets of copper busbars 2 and insulating layer 3, and the end plate of the T-shaped plate 5 is attached to the side wall of the copper busbars 2 and insulating layer 3.

[0025] By setting the sidewalls of the T-shaped plate 5 to fit together, the sidewalls of multiple copper busbars can be precisely aligned and aligned, and the position can be limited to ensure the positional accuracy of the assembly and stacking.

[0026] The T-shaped plate 5 is wrapped in the encapsulation layer 4. The lateral extension plate of the T-shaped plate 5 increases the lateral extension length, so that it is wrapped in the extension section of the encapsulation layer 4, which improves the strength of the extension section encapsulation and avoids the encapsulation structure from being too brittle and breaking.

[0027] Both the upper and lower sides of the T-shaped plate 5 are provided with screws 6 extending to the outside of the encapsulation layer 4. A flexible buffer assembly is sleeved on the end of the screw 6. The flexible buffer assembly includes an upper pad 7 and a lower pad 8. Both the upper pad 7 and the lower pad 8 are made of insulating flexible rubber. The lower pad 8 is pressed onto the circuit board 10. The screw 6 is set on the transverse extension plate of the T-shaped plate 5. Both the upper pad 7 and the lower pad 8 are provided with screw holes 14 that are threadedly connected to the screw 6. The screw holes 14 on the upper pad 7 are through holes, and the screw holes 14 on the lower pad 8 are countersunk holes.

[0028] By setting the screw 6 and screw hole 14 together, the upper pad 7 and lower pad 8 are installed, thereby using the upper pad 7 and lower pad 8 to support the busbar assembly, so that the entire busbar assembly is suspended in the air, avoiding compression with the circuit board or other structures.

[0029] Working principle: First, the assembly is formed by alternating stacking of multiple sets of copper busbars 2 and insulating layers 3 to adjust the quantity and adapt to different circuit connections. At the same time, the encapsulation layer 4 is used for insulation encapsulation to improve the installation insulation of the busbar assembly 1 and avoid short circuits. The input circuit connection of the busbar assembly 1 is realized by setting the electrical socket 13 and the connecting post 11. The output connection of the busbar assembly 1 is realized by setting the external connector 12, thus forming the connection of the busbar assembly 1 in the circuit.

[0030] By setting the sidewalls of the T-shaped plate 5 to fit together, the sidewalls of multiple copper busbars can be precisely aligned and aligned, and the position can be limited to ensure the positional accuracy of the assembly and stacking. The T-shaped plate 5 is wrapped in the encapsulation layer 4. The lateral extension plate of the T-shaped plate 5 increases the lateral extension length, so that it is wrapped in the extension section of the encapsulation layer 4, which improves the strength of the extension section encapsulation and avoids the encapsulation structure from being too brittle and breaking.

[0031] After the circuit connection is completed, the upper pad 7 and the lower pad 8 are installed by the cooperation of the screw 6 and the screw hole 14. They are supported on the circuit board respectively, so that the entire busbar assembly is suspended in the air, avoiding compression with the circuit board or other structures. By setting the screw hole 14, the position installation range of the upper pad 7 and the lower pad 8 is increased to accommodate different installation gaps.

[0032] Example 2: Based on Example 1, T-shaped plates 5 are provided on all four sides of the busbar assembly 1, and adjacent T-shaped plates 5 are connected by multiple sets of elastic pull ropes 9.

[0033] Multiple T-shaped plates 5 are connected by setting elastic pull ropes 9, which in turn form a clamping cavity for multiple copper busbars. The elasticity of the elastic pull ropes 9 is used to achieve pre-clamping connection, which facilitates the improvement of subsequent packaging accuracy.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An assembled composite busbar, comprising a busbar assembly (1), wherein the busbar assembly (1) is composed of multiple sets of copper busbars (2) and insulating layers (3) alternately stacked, the outer side of the busbar assembly (1) is encapsulated by an insulating encapsulation layer (4), an external connector (12) for output connection is provided on one side of the busbar assembly (1), and multiple sets of input terminals connected to a circuit board (10) are provided on the busbar assembly (1), characterized in that: A T-shaped plate (5) is provided on the outer side of the multiple sets of copper busbars (2) and insulating layer (3) stacked together. The end plate of the T-shaped plate (5) is attached to the side wall of the copper busbar (2) and insulating layer (3). The T-shaped plate (5) is wrapped in the encapsulation layer (4). Both the upper and lower sides of the T-shaped plate (5) are provided with screws (6) extending to the outside of the encapsulation layer (4). A flexible buffer component is sleeved on the end of the screw (6).

2. The assembled composite busbar according to claim 1, characterized in that: The copper busbar (2) and the insulating layer (3) are bonded together by hot-dip coating. The input end of the busbar assembly (1) is set with multiple sets of through electrical sockets (13), and the electrical sockets (13) are provided with I-shaped sleeves that fix and clamp the multi-layer copper busbar (2).

3. The assembled composite busbar according to claim 2, characterized in that: The circuit board (10) is provided with a connecting post (11) that is plugged into an electrical socket (13) and electrically connected to multiple sets of copper busbars (2).

4. The assembled composite busbar according to claim 3, characterized in that: The flexible buffer assembly includes an upper pad (7) and a lower pad (8), both of which are made of insulating flexible rubber. The lower pad (8) is pressed onto the circuit board (10).

5. The assembled composite busbar according to claim 4, characterized in that: The screw (6) is set on the transverse extension plate of the T-shaped plate (5), and the upper pad (7) and the lower pad (8) are both provided with screw holes (14) that are threadedly connected to the screw (6).

6. The assembled composite busbar according to claim 5, characterized in that: The screw hole (14) on the upper pad (7) is through-hole, and the screw hole (14) on the lower pad (8) is countersunk.

7. The assembled composite busbar according to claim 5, characterized in that: The busbar assembly (1) is provided with T-shaped plates (5) on all four sides, and adjacent T-shaped plates (5) are connected by multiple sets of elastic pull ropes (9).

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