Power connection structure and power distribution equipment

Abstract

The utility model provides a power connection structure and power distribution equipment, and the power connection structure comprises an insulating shell which is provided with a mounting hole, the mounting hole penetrates through the first surface and the second surface of the insulating shell, and the insulating shell is used for being fixed to a box body of the power distribution equipment; the conducting bar is arranged on the first surface; the circuit board is arranged on the second surface; the conductive piece is arranged in the mounting hole; the first through-flow piece is arranged on the conducting bar and is electrically connected to the conducting piece; the second through-flow part is arranged on the circuit board and is electrically connected to the conductive part; wherein the first surface is located on the inner side of the insulating shell, and the second surface is located on the outer side of the insulating shell. The conducting bar and the circuit board are respectively arranged on the inner and outer sides of the insulating shell, thereby reducing the occupation of the circuit board on the internal space of the insulating shell, optimizing the internal layout of equipment, and improving the space utilization rate.

Description

Technical Field

[0001] This application relates to the field of circuit board electrical connection structure technology, and in particular to an electrical connection structure and power distribution equipment. Background Technology

[0002] Currently, power systems such as power supply systems and photovoltaic energy storage systems are equipped with power distribution equipment, which is used to realize functions such as power control, protection, conversion and distribution at the end of the power system.

[0003] In related technologies, power distribution equipment typically includes a enclosure, a data acquisition board, copper busbars, and circuit breakers, all of which are fixed inside the enclosure. During the assembly process, the copper busbars are usually fixed inside the enclosure first, and wires such as OT terminal lines are connected to them. Then, the data acquisition board is fixed inside the enclosure, covering the copper busbars, with one end of the copper busbars passing through the acquisition board. The ends of the wires furthest from the copper busbars are then connected to the acquisition board. After the acquisition board and copper busbars are fixed, the circuit breaker can be plugged into the end of the copper busbars that passes through the acquisition board. However, the acquisition board typically connects to numerous wires and electronic components, resulting in a large space occupation and low space utilization of the equipment. Utility Model Content

[0004] In view of the above, it is necessary to provide a power connection structure and power distribution equipment to solve the above technical problems.

[0005] The first aspect of this application provides an electrical connection structure, comprising: an insulating shell having a mounting hole penetrating a first surface and a second surface of the insulating shell, the first surface being located inside the insulating shell and the second surface being located outside the insulating shell, the insulating shell being used to fix to the enclosure of a power distribution device; a conductive busbar disposed on the first surface; a circuit board disposed on the second surface; a conductive element disposed in the mounting hole; a first current-carrying element disposed on the conductive busbar and electrically connected to the conductive element; and a second current-carrying element disposed on the circuit board and electrically connected to the conductive element.

[0006] In some embodiments, the inner side of the insulating shell protrudes to form a boss for raising the conductive busbar, and the surface of the boss forms a first surface.

[0007] In some embodiments, the outer side of the insulating shell is formed with grooves corresponding to the bosses, the circuit board is housed in the grooves, and the bottom of the grooves forms a second surface.

[0008] In some embodiments, the conductive element is provided with a threaded hole; the first current-passing element is a first conductive screw, the conductive busbar is provided with a fixing hole, the first conductive screw passes through the fixing hole and is threadedly connected to the threaded hole.

[0009] In some embodiments, the conductive bus includes a fixing part and a plug-in part, the plug-in part is connected to one end of the fixing part, the fixing part is connected to a first surface, and the plug-in part is used to plug into a circuit breaker; wherein, a fixing hole is provided at one end of the fixing part near the plug-in part, and a first conductive screw passes through the fixing hole to fix the fixing part to the first surface.

[0010] In some embodiments, the insulating shell is provided with a positioning post, and the fixing part is provided with a positioning hole corresponding to the positioning post, and the positioning post is inserted into the positioning hole.

[0011] In some embodiments, the conductive element is provided with a threaded hole; the second current-passing element is a second conductive screw, the circuit board is provided with a connection hole, the second conductive screw passes through the connection hole and is threadedly connected to the threaded hole.

[0012] In some embodiments, a support post is provided on the second side, and a mounting hole passes through the support post, which is used to support the circuit board.

[0013] In some embodiments, the insulating shell is provided with a positioning protrusion, and the circuit board is provided with a plug hole corresponding to the positioning protrusion, and the positioning protrusion is plugged into the plug hole.

[0014] The second aspect of this application provides a power distribution device, including a housing and a power connection structure as provided in the first aspect; the housing has a receiving cavity, and the power connection structure is disposed in the receiving cavity; the insulating shell of the power connection structure is fixed inside the receiving cavity.

[0015] In some embodiments, the system further includes: a first busbar disposed within an insulating housing for electrical connection to an external power source; a second busbar disposed within an insulating housing and electrically connected to the first busbar; a first branch including a branch copper busbar electrically connected to the first busbar, the first branch being configured to intelligently control the on / off state of electrical conduction between the branch copper busbar and the first busbar; and a second branch disposed within an insulating housing and electrically connected to the second busbar; wherein the conductive busbar is the branch copper busbar and / or the second busbar.

[0016] With the power connection structure and power distribution equipment provided in this application, the conductive busbar and the circuit board are fixed to the first and second sides of the insulating shell, respectively, so that the conductive busbar and the circuit board are arranged on the inner and outer sides of the insulating shell, reducing the space occupied by the circuit board on the internal space of the insulating shell, optimizing the internal layout of the equipment, and improving space utilization. Attached Figure Description

[0017] Figure 1 An exploded view of the power connection structure and enclosure of the power distribution equipment provided in this application.

[0018] Figure 2 This is an exploded view of the front cover and insulating shell of the electrical connection structure provided in this application.

[0019] Figure 3This is an exploded view of the conductive busbar and insulating shell of the electrical connection structure provided in this application.

[0020] Figure 4 This is a schematic diagram of the back side of the electrical connection structure provided in this application.

[0021] Figure 5 An exploded view of the circuit board and insulating shell for the electrical connection structure provided in this application.

[0022] Figure 6 for Figure 3 A magnified view of section VI in the middle.

[0023] Figure 7 This is a schematic diagram of the structure of the insulating shell provided in this application.

[0024] Figure 8 for Figure 5 A magnified view of section VIII.

[0025] Figure 9 This is a schematic diagram illustrating the connection relationship between the conductive busbar, conductive components, and circuit board provided in this application.

[0026] Figure 10 This is a schematic diagram of the structure of the conductive bus provided in this application.

[0027] Figure 11 A cross-sectional schematic diagram of the first and second electrical connection structures provided in this application.

[0028] Explanation of main component symbols

[0029] 100. Electrical connection structure; 10. Insulating shell; 11. First surface; 12. Second surface; 13. Mounting hole; 14. Boss; 141. Groove; 16. Support column; 17. Support protrusion; 171. Positioning protrusion; 18. Positioning groove; 181. Positioning flange; 19. Positioning post; 20. Conductive busbar; 21. Fixing part; 22. Plug-in part; 23. Positioning hole; 24. Fixing hole; 30. Circuit board; 31. Plug-in hole; 32. Through hole; 40. Conductive component; 41. Threaded hole; 50. First current-passing component; 51. First conductive screw; 60. Second current-passing component; 61. Second conductive screw; 80. Front cover; 90. Circuit breaker; 200. Box body; 201. Receiving cavity; 202. Box cover; 300. First busbar; 400. Second busbar. Detailed Implementation

[0030] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone, where A and B can be singular or plural.

[0031] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an element positioned in between. When an element is considered to be "set" on another element, it can be directly set on the other element or there may be an element positioned in between. In this application, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms “comprising” and “equivalent to”, and any variations thereof, in the specification, claims, and foregoing description of the drawings, are intended to cover non-exclusive inclusion.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] This application first provides an electrical connection structure.

[0035] Figure 1 An exploded view of the power connection structure and enclosure of the power distribution equipment provided in this application. Figure 2 This is an exploded view of the front cover and insulating shell of the electrical connection structure provided in this application. Figure 3This is an exploded view of the conductive busbar and insulating shell of the electrical connection structure provided in this application.

[0036] like Figures 1 to 3 As shown, the power connection structure 100 can be applied to power distribution equipment. The power distribution equipment includes a housing 200 and the power connection structure 100. The housing 200 has a receiving cavity 201 and is equipped with a cover 202, which covers the opening of the receiving cavity 201. All power connection structures 100 are disposed within the receiving cavity 201 and are fixed to the housing 200.

[0037] The power distribution equipment also includes a first busbar 300, a second busbar 400, and power distribution branches. The first busbar 300 is housed within the insulating housing 10 and is used for electrical connection to an external power source. For example, the external power source can be mains power, energy storage power, a generator, photovoltaic modules, etc. The second busbar 400 is also housed within the insulating housing 10 and is electrically connected to the first busbar 300.

[0038] The power distribution branch includes a first branch and a second branch. The first branch is configured to intelligently control the on / off state of electrical conduction between the branch copper busbar and the first busbar 300. The first branch includes a branch copper busbar, which is electrically connected to the first busbar 300 and can be connected to a relay. The second branch is located inside the insulating housing 10 and is electrically connected to the second busbar 400.

[0039] Both the branch copper busbar and the second busbar 400 can adopt the power connection structure 100 provided in this application. For ease of understanding, the branch copper busbar is used as an example in this embodiment.

[0040] Figure 4 This is a schematic diagram of the back side of the electrical connection structure provided in this application.

[0041] like Figures 1 to 4 As shown, the power connection structure 100 includes an insulating shell 10, a conductive busbar 20, a circuit board 30, and a circuit breaker 90. Both the conductive busbar 20 and the circuit board 30 are fixed to the insulating shell 10, and the conductive busbar 20 is electrically connected to the circuit board 30. The conductive busbar 20 is plugged into and electrically connected to the circuit breaker 90. Multiple circuit breakers 90 can be configured, and the number of conductive busbars 20 corresponds to the number of circuit breakers 90. Each circuit breaker 90 is plugged into a corresponding conductive busbar 20.

[0042] In the example of this application, circuit board 30 is a data acquisition board or a circuit board with data acquisition function. The data acquisition board is used to acquire various electrical parameters in the power distribution system. The data acquisition board can be electrically connected to the control board of the power distribution equipment and to the power distribution branches. In practical applications, circuit board 30 can transmit the acquired information to the control board, which can process the information and output control signals. The control signals can be output to display devices such as mobile phones and monitors for displaying the sampled information. The control signals can also be used to control the on / off state of the corresponding power distribution branches.

[0043] Figure 5 An exploded view of the circuit board and insulating shell for the electrical connection structure provided in this application. Figure 6 for Figure 3 A magnified view of section VI in the middle.

[0044] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the power connection structure 100 includes an insulating shell 10, a conductive busbar 20, a circuit board 30, a conductive element 40, a first current-carrying element 50, and a second current-carrying element 60. The insulating shell 10 is fixed to the enclosure 200 of the power distribution equipment. The insulating shell 10 has a receiving cavity 15 and has a first surface 11 and a second surface 12. The first surface 11 is located on the inner side of the insulating shell 10, and the second surface 12 is located on the outer side of the insulating shell 10, with the first surface 11 and the second surface 12 facing each other. The inner side of the insulating shell 10 forms the bottom wall of the receiving cavity 15. The insulating shell 10 has a mounting hole 13 that penetrates the first surface 11 and the second surface 12.

[0045] The conductive component 40 is made of conductive material and is disposed in the mounting hole 13.

[0046] A conductive busbar 20 is disposed on the first surface 11 of the insulating shell 10, and the conductive busbar 20 is fixed relative to the insulating shell 10. A first current-carrying element 50 is made of conductive material, disposed on the conductive busbar 20, and electrically connected to the conductive element 40, so that the conductive busbar 20 and the conductive element 40 are electrically connected. The number of conductive busbars 20 can be configured according to the number of distribution branches, i.e., the number of circuit breakers 90. Correspondingly, the number of mounting holes 13, the number of conductive elements 40, and the number of first current-carrying elements 50 can all be adaptively adjusted.

[0047] The circuit board 30 is disposed on the second surface 12 of the insulating shell 10, and the circuit board 30 is fixed relative to the insulating shell 10. The second current-passing element 60 is made of conductive material, the second current-passing element 60 is disposed on the circuit board 30, and the second current-passing element 60 is electrically connected to the conductive element 40, so that the circuit board 30 and the conductive element 40 are electrically connected.

[0048] It is understood that the conductive busbar 20 and the circuit board 30 are fixed to the first side 11 and the second side 12 of the insulating shell 10, respectively, so that the conductive busbar 20 and the circuit board 30 are arranged on the inner and outer sides of the insulating shell 10, reducing the space occupied by the circuit board 30 in the internal space of the insulating shell 10, optimizing the internal layout of the equipment, and improving space utilization.

[0049] Electrical connection is established between the conductive busbar 20 and the circuit board 30 through the first current-passing element 50, the second current-passing element 60, and the conductive element 40. The electrical connection between the conductive busbar 20 and the circuit board 30 does not require wires, avoiding the difficulty of managing excessive wires.

[0050] During the production and assembly process, the conductive busbar 20 is placed on the first surface 11 of the insulating shell 10, and the first current-passing element 50 is connected to the conductive element 40. The circuit board 30 is placed on the second surface 12 of the insulating shell 10, and the second current-passing element 60 is connected to the conductive element 40. This achieves a fixed connection and electrical connection between the conductive busbar 20 and the circuit board 30. The assembly method is simple and quick, improving production efficiency.

[0051] In some embodiments, the insulating shell 10 is made of an insulating material such as plastic. The insulating shell 10 can be fixed to the bottom wall of the receiving cavity 201. The opening of the receiving cavity 15 is disposed facing the opening of the receiving cavity 201, such that the first surface 11 is disposed facing the opening of the receiving cavity 201, and the second surface 12 is disposed facing the bottom wall of the receiving cavity 201. In this way, the conductive bus 20 can be disposed near the opening of the receiving cavity 201, facilitating the connection between the conductive bus 20 and the circuit breaker 90.

[0052] In the example of this application, the insulating shell 10 is fixed to the bottom wall of the accommodating cavity 201 by bolting. In other embodiments, the insulating shell 10 can also be fixed to the bottom wall of the accommodating cavity 201 by snap-fitting, welding or other means, or the insulating shell 10 can also be integrally formed from the bottom wall of the accommodating cavity 201. This application does not limit this.

[0053] In some embodiments, the power connection structure 100 further includes a front cover 80, which is made of an insulating material such as plastic. The front cover 80 covers the opening of the receiving cavity 15 and is bolted to the insulating shell 10. A circuit breaker 90 is fixedly disposed on the side of the front cover 80 away from the insulating shell 10, and the front cover 80 has a window. When the front cover 80 covers the insulating shell 10, the conductive busbar 20 can pass through the window and be plugged into the corresponding circuit breaker 90.

[0054] Figure 7 This is a schematic diagram of the structure of the insulating shell provided in this application.

[0055] like Figure 1 , Figure 2 , Figure 5 and Figure 7As shown, in some embodiments, the inner side of the insulating shell 10 protrudes to form a boss portion 14 for raising the conductive bus 20, and the surface of the boss portion 14 forms a first surface 11.

[0056] For example, the bottom wall of the middle part of the receiving cavity 15 protrudes in the direction close to the cavity opening to form a boss 14, and the side of the boss 14 facing the cavity opening of the receiving cavity 15 forms a first surface 11.

[0057] When the insulating shell 10 is fixed to the bottom wall of the receiving cavity 201, a certain raised distance is formed between the first surface 11 of the boss portion 14 and the bottom wall of the receiving cavity 201, which can raise the position of the conductive bus 20 relative to the bottom wall of the receiving cavity 15, making up for the height of the conductive bus 20 plugging into the circuit breaker 90, so that the position of the circuit breaker 90 can be closer to the cavity opening of the receiving cavity 201, which is convenient for user operation.

[0058] In some embodiments, the outer side of the insulating shell 10 is formed with grooves 141 corresponding to the boss portion 14, and the circuit board 30 is housed in the grooves 141.

[0059] For example, the outer middle of the insulating shell 10 is recessed in the direction close to the opening of the receiving cavity 15 to form a groove 141, and the bottom of the groove 141 forms a second surface 12.

[0060] By protruding the inner side of the insulating shell 10 to form a boss 14, and recessing the outer side of the insulating shell 10 to form a groove 141, space is left to accommodate and fix the circuit board 30. This satisfies the need to raise the conductive busbar 20 while accommodating the circuit board 30, thus optimizing the structural space layout and improving space utilization.

[0061] like Figure 3 and Figure 6 As shown, in some embodiments, the insulating shell 10 is provided with a positioning groove 18, which corresponds to the conductive bus 20, and the conductive bus 20 can be adaptedly received within the positioning groove 18. For example, a positioning protrusion 181 is formed on the first surface 11 of the insulating shell 10, and the positioning protrusion 181 is distributed along the peripheral contour of the conductive bus 20, so that the positioning protrusion 181 surrounds and forms the positioning groove 18. It can be understood that the positioning groove 18 can limit the conductive bus 20, preventing the conductive bus 20 from deviating from its position.

[0062] In some embodiments, the insulating shell 10 is provided with positioning posts 19, which protrude from the first surface 11 of the base. The positioning posts 19 engage with the conductive busbar 20 to prevent the conductive busbar 20 from deviating from its position. For example, the positioning posts 19 are located at the bottom of the positioning grooves 18, and multiple positioning posts 19 are provided in each positioning groove 18, spaced apart from each other. It can be understood that multiple positioning posts 19 can engage with the conductive busbar 20 at different positions to improve the positioning effect.

[0063] Figure 8 for Figure 5 A magnified view of section VIII.

[0064] like Figure 5 and Figure 8 As shown, in some embodiments, the second surface 12 of the insulating shell 10 is provided with a support post 16, and the mounting hole 13 penetrates the support post 16 so that the conductive element 40 is embedded and fixed in the support post 16. The support post 16 is used to support the circuit board 30. For example, the support post 16 protrudes from the bottom of the groove 141, and the support post 16 can support the circuit board 30 so that a gap is formed between the surface of the circuit board 30 and the bottom of the groove 141. This gap can accommodate electronic components on the surface of the circuit board 30, thereby improving space utilization.

[0065] On the other hand, the support column 16 can extend the length of the mounting hole 13, providing a certain accommodating space for the conductive component 40, improving the installation stability of the conductive component 40, and thus improving the stability of the electrical connection between the circuit board 30 and the conductive busbar 20.

[0066] In some embodiments, the insulating shell 10 is provided with a positioning protrusion 171, which engages with the circuit board 30 to prevent the circuit board 30 from deviating from its position. For example, a support protrusion 17 is formed between the bottom and wall of the groove 141. The protrusion height of the support protrusion 17 relative to the bottom of the groove 141 corresponds to the protrusion height of the support post 16, so that the support protrusion 17 can simultaneously abut against the circuit board 30 and support the circuit board 30 in conjunction with the support post 16. The positioning protrusion 171 protrudes from the surface of the support protrusion 17.

[0067] Figure 9 This is a schematic diagram illustrating the connection relationship between the conductive busbar, conductive components, and circuit board provided in this application.

[0068] like Figure 3 , Figure 5 and Figure 9 As shown, in some embodiments, the conductive element 40 is made of metal and is formed within the mounting hole 13 by an inner riveting process. For example, the conductive element 40 can be an injection-molded copper nut. A threaded hole 41 is formed inside the conductive element 40, and both ends of the conductive element 40 are exposed on the first surface 11 and the second surface 12, respectively. The conductive bus 20 can be electrically connected by inserting the first current-passing element 50 into the conductive element 40 from the first surface 11, and the circuit board 30 can be electrically connected by inserting the second current-passing element 60 into the conductive element 40 from the second surface 12.

[0069] In the example of this application, there are multiple conductive elements 40, which are arranged in two rows in a side-by-side configuration. In other embodiments, the number and distribution of conductive elements 40 can be adaptively adjusted according to the number and distribution of circuit breakers 90, and this application does not impose any limitations on this.

[0070] In some embodiments, the conductive busbar 20 is made of a metal such as copper. There are multiple conductive busbars 20, arranged in two parallel rows, and different conductive busbars 20 may have different shapes. In other embodiments, the number and distribution of the conductive busbars 20 can be adaptively adjusted according to the number and distribution of the circuit breakers 90, and this application does not impose any limitations on this.

[0071] On the other hand, the type of the busbar 20 can be configured according to the corresponding power distribution branch. In the application scenario of this embodiment, the busbar 20 is a branch copper busbar and is applied to the first branch. The busbar 20 can be connected to a relay. In another application scenario, the busbar 20 can also be a second busbar 400 and applied to the second branch. The busbar 20 as a branch copper busbar and the busbar 20 as a second busbar 400 can be installed together in the same insulating shell 10 or connected to the same circuit board 30. This application does not limit this.

[0072] Figure 10 This is a schematic diagram of the structure of the conductive bus provided in this application.

[0073] like Figure 2 , Figure 6 and Figure 10 As shown, the busbar 20 includes a fixing part 21 and a plug-in part 22, which are integrally formed from metal. The plug-in part 22 is connected to one end of the fixing part 21, and an angle is formed between the plug-in part 22 and the fixing part 21. The fixing part 21 is connected to the insulating shell 10. The plug-in part 22 is used to plug into the circuit breaker 90.

[0074] The shape of the fixing part 21 is adapted to the shape of the positioning groove 18 so that the fixing part 21 can be received in the positioning groove 18. The fixing part 21 is provided with a positioning hole 23 corresponding to the positioning post 19, and the positioning post 19 is inserted into the positioning hole 23 to form a positioning fit. The insertion part 22 is perpendicular to the fixing part 21, and the end of the insertion part 22 away from the fixing part 21 is exposed in the positioning groove 18 for the circuit breaker 90 to be inserted.

[0075] In some embodiments, the conductive busbar 20 is provided with a fixing hole 24 for a screw structure to pass through and fix to the insulating shell 10. In this way, the conductive busbar 20 and the insulating shell 10 are detachably fixed by a screw structure, which facilitates the disassembly and assembly of the conductive busbar 20 during later equipment maintenance.

[0076] In some embodiments, the fixing hole 24 is located at one end of the fixing part 21 near the insertion part 22. In this way, the fixing connection point between the fixing part 21 and the insulating shell 10 can be close to the position of the insertion part 22, reducing the shaking of the conductor bus 20 caused by the insertion and removal of the circuit breaker 90 and improving the installation stability of the conductor bus 20.

[0077] like Figure 3 , Figure 6 and Figure 9 As shown, in some embodiments, the first current-passing element 50 is a first conductive screw 51, which passes through the fixing hole 24 to fix the fixing part 21 to the insulating shell 10. Exemplarily, the first conductive screw 51 is made of metal and has a shank and a nut. The shank of the first conductive screw 51 passes through the fixing part 21, is inserted into the conductive element 40 from the first face 11, and is threaded into the threaded hole 41. The nut of the first conductive screw 51 abuts against the fixing part 21.

[0078] Thus, the first conductive screw 51 can serve as a screw structure to fix the conductive busbar 20 and the insulating shell 10, and can also establish an electrical connection between the conductive busbar 20 and the conductive component 40.

[0079] During the assembly of the conductive busbar 20, the conductive busbar 20 can be placed in the positioning groove 18 first. The position of the conductive busbar 20 can be positioned and corrected by the positioning groove 18 and the positioning post 19, so that the fixing hole 24 is aligned with the threaded hole 41. Then, the first conductive screw 51 can be inserted into the conductive busbar 20 and screwed into the threaded hole 41. In this way, the assembly, fixing and electrical connection of the conductive busbar 20 can be completed quickly.

[0080] It is worth noting that the number of first conductive screws 51 and the number of fixing holes 24 can be configured according to the number of conductive parts 40, and their position distribution can also be adjusted accordingly. This application does not impose any restrictions on this.

[0081] It is understood that the conductive busbar 20 in this embodiment is an example of a branch copper busbar. In other examples, the conductive busbar 20 can also be a second busbar 400, and its shape can be adapted according to the corresponding connection structure. This application does not limit this.

[0082] In some embodiments, the shape of the circuit board 30 is adapted to the shape of the recess 141 so that the circuit board 30 can be received and confined within the recess 141. The circuit board 30 is provided with a insertion hole 31 corresponding to the positioning protrusion 171, and the positioning protrusion 171 is inserted into the insertion hole 31 to form a positioning fit.

[0083] like Figure 5 , Figure 8 and Figure 9As shown, in some embodiments, the circuit board 30 is provided with a through hole 32 corresponding to the conductive element 40, and a conductive contact is provided at the position of the through hole 32.

[0084] The second current-passing component 60 is a second conductive screw 61, which passes through the through hole 32 and is threaded into the threaded hole 41. For example, the second conductive screw 61 is made of metal and has a shank and a nut. The shank of the second conductive screw 61 passes through the circuit board 30, is inserted into the conductive component 40 from the second side 12, and is threaded into the threaded hole 41. The nut of the second conductive screw 61 abuts against the circuit board 30 and contacts the conductive contact.

[0085] Thus, the second conductive screw 61 can, on the one hand, bolt and fix the circuit board 30 in the groove 141, and on the other hand, establish an electrical connection between the circuit board 30 and the conductive component 40.

[0086] During the assembly of the circuit board 30, the circuit board 30 can be placed in the groove 141 first, and the position of the circuit board 30 can be positioned and corrected by the positioning protrusion 171 so that the through hole 32 is aligned with the threaded hole 41. Then the second conductive screw 61 can be inserted into the circuit board 30 and screwed into the threaded hole 41. In this way, the assembly, fixation and electrical connection of the circuit board 30 can be completed quickly.

[0087] It is worth noting that the number of second conductive screws 61 and the number of through holes 32 can be configured according to the number of conductive parts 40, and their position distribution can also be adjusted accordingly. This application does not impose any restrictions on this.

[0088] This application also provides a power distribution device.

[0089] like Figure 1 , Figure 2 , Figure 4 and Figure 9 As shown, the power distribution equipment includes a housing 200 and a power connection structure 100. The housing 200 has a receiving cavity 201, and the power connection structure 100 is disposed in the receiving cavity 201.

[0090] The power connection structure 100 includes an insulating shell 10, a conductive busbar 20, a circuit board 30, a conductive element 40, a first current-carrying element 50, a second current-carrying element 60, and a circuit breaker 90. The insulating shell 10 has a mounting hole 13 that penetrates a first surface 11 and a second surface 12 of the insulating shell 10. The first surface 11 is located inside the insulating shell 10, and the second surface 12 is located outside the insulating shell 10. The insulating shell 10 is fixed within a receiving cavity 201. The conductive busbar 20 is located on the first surface 11. The circuit board 30 is located on the second surface 12. The conductive element 40 is located in the mounting hole 13. The first current-carrying element 50 is located on the conductive busbar 20 and electrically connected to the conductive element 40. The second current-carrying element 60 is located on the circuit board 30 and electrically connected to the conductive element 40. The circuit breaker 90 is connected to the conductive busbar 20.

[0091] During the assembly of the power distribution equipment, the conductive component 40 is pre-formed in the mounting hole 13 through an inner riveting process; the conductive bus 20 can be directly fixed to the first surface 11 and electrically connected to the conductive component 40 through the first current-passing component 50; the circuit board 30 can be directly fixed to the second surface 12 and electrically connected to the conductive component 40 through the second current-passing component 60; the circuit breaker 90 can be connected to the conductive bus 20 by plugging in.

[0092] In this way, the electrical connection between the conductive busbar 20 and the circuit board 30 does not require wires, avoiding the difficulty of managing too many wires, and the assembly method is simple and quick, improving production efficiency.

[0093] Figure 11 A cross-sectional schematic diagram of the first and second electrical connection structures provided in this application.

[0094] like Figure 2 , Figure 3 and Figure 11 As shown, the power distribution equipment also includes a first busbar 300, a second busbar 400, and power distribution branches. The first busbar 300 is housed within the insulating housing 10 and is used for electrical connection to an external power source. For example, the external power source can be mains power, energy storage power, a generator, photovoltaic modules, etc. The second busbar 400 is also housed within the insulating housing 10 and is electrically connected to the first busbar 300.

[0095] The power distribution branch includes a first branch and a second branch. The first branch is configured to intelligently control the on / off connection between the branch copper busbar and the first busbar 300. The first branch includes multiple branch copper busbars, each electrically connected to the first busbar 300, and each branch copper busbar can be connected to a relay. The second branch is housed within the insulating housing 10 and electrically connected to the second busbar 400.

[0096] The conductive busbar 20 is a branch copper busbar and / or a second busbar 400. Both the branch copper busbar and the second busbar 400 can adopt the power connection structure 100 provided in this application.

[0097] In the application scenario of the first branch, the branch copper busbar is conductive busbar 20A, which is connected to the first busbar 300 and can be connected to a relay. In the application scenario of the second branch, the branch copper busbar is conductive busbar 20B, which is connected to the first busbar 300.

[0098] It is understood that the type and number of the first and second branches can be increased or decreased according to actual needs, and the corresponding power connection structure 100 can also be adjusted accordingly. This application does not impose any restrictions on this.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. An electrical connection structure, characterized in that, include: An insulating shell is provided with mounting holes that penetrate a first surface and a second surface of the insulating shell. The first surface is located on the inner side of the insulating shell, and the second surface is located on the outer side of the insulating shell. The insulating shell is used to fix the insulating shell to the enclosure of the power distribution equipment. A conductive busbar is disposed on the first surface; A circuit board is disposed on the second side; A conductive element is disposed in the mounting hole; A first current-passing element is disposed on the conductive busbar and electrically connected to the conductive element; The second current-passing element is disposed on the circuit board and electrically connected to the conductive element.

2. The electrical connection structure according to claim 1, characterized in that, The inner side of the insulating shell protrudes to form a boss for raising the conductive busbar, and the surface of the boss forms the first surface.

3. The electrical connection structure according to claim 2, characterized in that, The outer side of the insulating shell has grooves corresponding to the protrusions, the circuit board is housed in the grooves, and the bottom of the grooves forms the second surface.

4. The electrical connection structure according to claim 1, characterized in that, The conductive component is provided with a threaded hole; the first flow-through component is a first conductive screw, the conductive busbar is provided with a fixing hole, the first conductive screw passes through the fixing hole and is threadedly connected to the threaded hole.

5. The electrical connection structure according to claim 4, characterized in that, The conductive bus includes a fixing part and a plug-in part. The plug-in part is connected to one end of the fixing part, and the fixing part is connected to the first surface. The plug-in part is used to plug into a circuit breaker. The fixing part has a fixing hole at one end near the insertion part, and the first conductive screw passes through the fixing hole to fix the fixing part to the first surface.

6. The electrical connection structure according to claim 5, characterized in that, The insulating shell is provided with a positioning post, and the fixing part is provided with a positioning hole corresponding to the positioning post, and the positioning post is inserted into the positioning hole.

7. The power connection structure according to any one of claims 4-6, characterized in that, The second flow-through component is a second conductive screw. The circuit board is provided with a connection hole, and the second conductive screw passes through the connection hole and is threaded into the threaded hole.

8. The power connection structure according to any one of claims 1-6, characterized in that, The second side is provided with a support post, and the mounting hole passes through the support post, which is used to support the circuit board.

9. The power connection structure according to any one of claims 1-6, characterized in that, The insulating shell is provided with a positioning protrusion, and the circuit board is provided with a plug hole corresponding to the positioning protrusion, and the positioning protrusion is plugged into the plug hole.

10. A power distribution device, characterized in that, The device includes a housing and a power connection structure as described in any one of claims 1-9; the housing has a receiving cavity, and the power connection structure is disposed in the receiving cavity; The insulating shell of the electrical connection structure is fixed inside the accommodating cavity.

11. The power distribution equipment according to claim 10, characterized in that, Also includes: The first busbar is located inside the insulating shell and is used for electrical connection with an external power source; The second busbar is disposed inside the insulating shell and is electrically connected to the first busbar; The first branch includes a branch copper busbar, which is electrically connected to the first busbar. The first branch is configured to intelligently control the on / off state of electrical conduction between the branch copper busbar and the first busbar. The second branch is located inside the insulating shell and is electrically connected to the second busbar; The conductive busbar is the branch copper busbar and / or the second busbar.

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