Power connection module and photovoltaic inversion equipment

Abstract

The utility model provides a power connection module and photovoltaic inversion equipment. The power connection module comprises a first copper bar; the second copper bars and the first copper bars are distributed at intervals; the first copper bar and the second copper bar penetrate through the magnetic ring; first positioning grooves, second positioning grooves and a fixing groove are formed in one face of the support, the first positioning grooves and the second positioning grooves are distributed at intervals, and the first positioning grooves and the second positioning grooves communicate with the fixing groove; wherein the first copper bar is arranged in the first positioning groove, the second copper bar is arranged in the second positioning groove, and the magnetic ring is arranged in the fixing groove. When the power connection module is installed in the case, the first copper bar, the second copper bar and the magnetic ring can be fixed to the support to form an integrated structure, then the support is installed in the case, and then the first copper bar and the second copper bar are powered on, so that the installation process is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic inverter equipment, and particularly relates to a power connection module and a photovoltaic inverter equipment. Background Art

[0002] Currently, photovoltaic inverter equipment generally includes a housing, a circuit board, and a power connection module. The circuit board is disposed inside the housing, and the power connection module is used to establish an electrical connection between the circuit board and other devices outside the housing. To meet relatively large power requirements, the power connection module usually adopts a copper bar assembly. The copper bar assembly needs to be installed on the housing through a through-wall terminal (also known as a through-wall wiring terminal). One end of the copper bar assembly is fixed and electrically connected to the through-wall terminal, and the other end of the copper bar assembly is fixed and electrically connected to the circuit board. A magnetic ring is also installed on the copper bar assembly, and the magnetic ring is used to improve electromagnetic interference. However, the power connection module in the above solution has the technical problem of being not easy to install. Summary of the Utility Model

[0003] In view of the above, it is necessary to provide a power connection module and a photovoltaic inverter equipment to solve the above defects.

[0004] A first aspect of the present application provides a power connection module, including: a first copper bar; a second copper bar spaced apart from the first copper bar; a magnetic ring through which both the first copper bar and the second copper bar pass; a bracket having a first positioning groove, a second positioning groove, and a fixing groove on one side. The first positioning groove and the second positioning groove are spaced apart, and both the first positioning groove and the second positioning groove communicate with the fixing groove. Wherein, the first copper bar is disposed in the first positioning groove, the second copper bar is disposed in the second positioning groove, and the magnetic ring is disposed in the fixing groove.

[0005] In some embodiments, the power connection module further includes a first power connection piece and a second power connection piece, which are spaced apart and disposed on the bracket. The first power connection piece is connected to the first end of the first copper bar, and the first power connection piece is used to connect to an external device through a first cable. The second power connection piece is connected to the first end of the second copper bar, and the second power connection piece is used to connect to an external device through a second cable.

[0006] In some embodiments, a relief groove is provided at the first end of the first copper bar, the first power connection piece is received in the relief groove, and the first copper bar abuts against the first power connection piece.

[0007] In some embodiments, a first connection hole is provided at the first end of the first copper bar, and a first mounting hole is provided on the first power connection piece. The first connection hole is used to communicate with the first mounting hole.

[0008] In some embodiments, the bracket is provided with a first mounting groove communicating with the first positioning groove, and the first power connection piece is disposed in the first mounting groove.

[0009] In some embodiments, there is a spacing between the second power connection piece and the first end of the second copper bar; the power connection module further includes a fuse piece, the fuse piece is arranged on the bracket, and the second power connection piece and the first end of the second copper bar are respectively connected to the fuse piece.

[0010] In some embodiments, a first through hole is provided at one end of the fuse piece, and a second through hole is provided at the other end of the fuse piece; the second copper bar is provided with a second connection hole for communicating with the first through hole; the second power connection piece is provided with a second mounting hole for communicating with the second through hole.

[0011] In some embodiments, the bracket is provided with a second mounting groove and a third mounting groove, and the second mounting groove and the third mounting groove communicate with the third mounting groove respectively; the second power connection piece is arranged in the second mounting groove, and the fuse piece is arranged in the third mounting groove.

[0012] In some embodiments, the width of the second end of the first copper bar is greater than the width of the first end of the first copper bar; and / or, the width of the second end of the second copper bar is greater than the width of the first end of the second copper bar.

[0013] The second aspect of the present application provides a photovoltaic inverter device, including a chassis, a circuit board and the power connection module provided in the first aspect, wherein the power connection module and the circuit board are both arranged in the chassis, a waterproof connector is arranged on one side of the chassis for a cable to pass through, and the circuit board and the cable are respectively electrically connected to the power connection module.

[0014] By means of the power connection module and the photovoltaic inverter device provided by the present application, when installing the power connection module on the chassis, the first copper bar, the second copper bar and the magnetic ring can be first fixed on the bracket to form an integrated structure, then the bracket is installed in the chassis, and then the first copper bar and the second copper bar are electrically connected, simplifying the installation process and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the photovoltaic inverter device according to the embodiment of the present application.

[0016] Figure 2 It is a schematic structural diagram of the power connection module according to the embodiment of the present application.

[0017] Figure 3 It is an exploded view of the power connection module according to the embodiment of the present application.

[0018] Figure 4 It is a schematic structural diagram of the bracket according to the embodiment of the present application.

[0019] Figure 5 It is a schematic structural diagram of the first copper bar, the second copper bar, the first power connection piece and the second power connection piece according to the embodiment of the present application.

[0020] DESCRIPTION OF THE MAIN ELEMENT SYMBOLS

[0021] Power connection module 100

[0022] Bracket 10

[0023] First positioning groove 11

[0024] First screw hole 111

[0025] Second positioning groove 12

[0026] Fourth screw hole 121

[0027] Seventh screw hole 122

[0028] Fixing groove 13

[0029] First installation groove 14

[0030] Second screw hole 141

[0031] Third screw hole 142

[0032] Second installation groove 15

[0033] Fifth screw hole 151

[0034] Sixth screw hole 152

[0035] Third installation groove 16

[0036] First copper bar 20

[0037] Relieving groove 21

[0038] First connection hole 22

[0039] First power connection hole 23

[0040] Second copper bar 30

[0041] Second connection hole 31

[0042] Second power connection hole 32

[0043] Magnetic ring 40

[0044] First power connection piece 50

[0045] First installation hole 51

[0046] First wiring hole 52

[0047] Second power connection piece 60

[0048] Second installation hole 61

[0049] Second wiring hole 62

[0050] Fuse piece 70

[0051] Chassis 200

[0052] Waterproof connector 201

[0053] Circuit board 300

[0054] First cable 400

[0055] Second cable 500

[0056] Photovoltaic inverter device 1000 Specific implementation manners

[0057] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0058] In the description of the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific manner. The "and / or" in the embodiments of the present application is only a relationship describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone, these three situations.

[0059] The present application first provides a power connection module, which has the technical effect of being convenient for installation.

[0060] Please refer to Figure 1 , the power connection module 100 can be applied to the photovoltaic inverter device 1000. The photovoltaic inverter device 1000 includes a chassis 200 and a circuit board 300. A waterproof connector 201 is provided on one side of the chassis 200. The waterproof connector 201 is used for a cable to pass through, and the cable can be connected to a device outside the chassis 200. Both the circuit board 300 and the power connection module 100 are disposed inside the chassis 200. One end of the power connection module 100 is electrically connected to the circuit board 300, and the other end of the power connection module 100 is electrically connected to the cable to establish an electrical connection between the external device and the circuit board 300.

[0061] Please refer to Figure 1 and Figure 2, The power connection module 100 includes a bracket 10, a first copper bar 20, a second copper bar 30, and a magnetic ring 40. Among them, the first copper bar 20 and the second copper bar 30 are distributed at intervals, both the first copper bar 20 and the second copper bar 30 pass through the magnetic ring 40, and the magnetic ring 40 is sleeved on the middle parts of the first copper bar 20 and the second copper bar 30.

[0062] A first positioning groove 11, a second positioning groove 12, and a fixing groove 13 are provided on one side of the bracket 10. The first positioning groove 11 and the second positioning groove 12 are distributed at intervals, and both the first positioning groove 11 and the second positioning groove 12 communicate with the fixing groove 13. The first positioning groove 11 is adapted to the first copper bar 20. The first copper bar 20 is arranged in the first positioning groove 11, and the first copper bar 20 is fixedly connected to the bracket 10. The second positioning groove 12 is adapted to the second copper bar 30. The second copper bar 30 is arranged in the second positioning groove 12, and the second copper bar 30 is fixedly connected to the bracket 10. The magnetic ring 40 is arranged in the fixing groove 13, and the magnetic ring 40 is fixedly connected to the bracket 10.

[0063] In this embodiment, the first copper bar 20 and the second copper bar 30 are parallel to each other as a whole. Moreover, both ends of the first copper bar 20 in its length direction form a first end and a second end, and both ends of the second copper bar 30 in its length direction also form a first end and a second end. Among them, the first end of the first copper bar 20 is distributed adjacent to the first end of the second copper bar 30, and the second end of the first copper bar 20 is distributed adjacent to the second end of the second copper bar 30.

[0064] In the scenario where the power connection module 100 is applied to the photovoltaic inverter device 1000, the first copper bar 20 and the second copper bar 30 can be used as the positive and negative electrodes respectively when connecting power. In the example of this embodiment, the first copper bar 20 can be the negative electrode, and the second copper bar 30 can be the positive electrode. The cables connecting to the external device can include a first cable 400 and a second cable 500. The first end of the first copper bar 20 can be connected to the first cable 400, the first end of the second copper bar 30 can be connected to the second cable 500, and the first cable 400 and the second cable 500 are connected to the external device. The bracket 10 can be installed in the chassis 200. The second end of the first copper bar 20 can be connected to the negative terminal of the circuit board 300, and the second end of the second copper bar 30 can be connected to the positive terminal of the circuit board 300. In this way, the electrical connection between the external device, the power connection module 100, and the circuit board 300 is established, and at the same time, the electromagnetic interference is improved by using the magnetic ring 40 sleeve.

[0065] It can be understood that when installing the power connection module 100 in the chassis 200, the first copper bar 20, the second copper bar 30, and the magnetic ring 40 can be first fixed to the bracket 10 to form an integrated structure, then the bracket 10 is installed in the chassis 200, and then the first copper bar 20 and the second copper bar 30 are connected to power, which simplifies the installation process and improves the production efficiency.

[0066] On the other hand, the bracket 10 positions the first copper bar 20 through the first positioning groove 11, positions the second copper bar 30 through the second positioning groove 12, and positions the magnetic ring 40 through the fixing groove 13, improving the installation stability of the first copper bar 20, the second copper bar 30, and the magnetic ring 40. Even when the sizes of the first copper bar 20, the second copper bar 30, or the magnetic ring 40 are relatively large, they are not prone to displacement, thereby meeting greater current demand and electromagnetic interference prevention requirements.

[0067] In some embodiments, the power connection module 100 further includes a first power connection piece 50. The first power connection piece 50 is connected to the first end of the first copper bar 20, and the first power connection piece 50 is used to connect to an external device through the first cable 400, so that the first copper bar 20 is electrically connected to the first cable 400.

[0068] Please refer to Figure 1 and Figure 2 In some embodiments, the power connection module 100 further includes a second power connection piece 60. The first power connection piece 50 and the second power connection piece 60 are spaced apart and arranged on the bracket 10. The second power connection piece 60 is connected to the first end of the second copper bar 30, and the second power connection piece 60 is used to connect to an external device through the second cable 500, so that the second copper bar 30 is electrically connected to the second cable 500.

[0069] In some embodiments, the power connection module 100 further includes a fuse piece 70. The fuse piece 70 is arranged on the bracket 10, and the second power connection piece 60 and the first end of the second copper bar 30 are respectively connected to the fuse piece 70, and the fuse piece 70 can play a role in circuit protection.

[0070] Please refer to Figure 2 and Figure 3 In some embodiments, the bracket 10 is further provided with a first installation groove 14. The first installation groove 14 communicates with the first positioning groove 11. The first power connection piece 50 is arranged in the first installation groove 14, and the first power connection piece 50 is fixed to the bracket 10. The bracket 10 positions the first power connection piece 50 through the first installation groove 14 to improve the installation stability of the first power connection piece 50.

[0071] In some embodiments, the bracket 10 is further provided with a second installation groove 15 and a third installation groove 16. The second installation groove 15 and the third installation groove 16 respectively communicate with the third installation groove 16. The second power connection piece 60 is arranged in the second installation groove 15, and the fuse piece 70 is arranged in the third installation groove 16. The bracket 10 positions the second power connection piece 60 through the second installation groove 15 and positions the fuse piece 70 through the third installation groove 16 to improve the installation stability of the second power connection piece 60 and the fuse piece 70.

[0072] Please refer to Figure 1 and Figure 2, in some embodiments, the bracket 10 is made of PBT (polybutylene terephthalate) material, so that the bracket 10 has good heat resistance, toughness and fatigue resistance. The bracket 10 can be fixed in the chassis 200 by bolting.

[0073] In some embodiments, the first positioning groove 11 is formed by recessing the surface of the bracket 10. The shape of the first positioning groove 11 is adapted to the shape of the first copper bar 20, and the first positioning groove 11 penetrates through the side of the bracket 10 close to the second end of the first copper bar 20.

[0074] When the first copper bar 20 is received in the first positioning groove 11, the groove wall of the first positioning groove 11 abuts against the side wall of the first copper bar 20 to limit the first copper bar 20, and the second end of the first copper bar 20 extends out of one side of the bracket 10 to facilitate the connection of the second end of the first copper bar 20 to other structures.

[0075] A first screw hole 111 is provided at the bottom of the first positioning groove 11. The second end of the first copper bar 20 can be penetrated by a screw structure and connected to the first screw hole 111, so that the second end of the first copper bar 20 is fixed to the bracket 10.

[0076] Please refer to Figure 2 and Figure 3 , in some embodiments, the first installation groove 14 is formed by recessing the surface of the bracket 10. The shape of the first installation groove 14 is adapted to the shape of the first electrical connection piece 50, and the first installation groove 14 communicates with the side of the first positioning groove 11 close to the first end of the first copper bar 20.

[0077] When the first electrical connection piece 50 is received in the first installation groove 14, the groove wall of the first installation groove 14 abuts against the side wall of the first electrical connection piece 50 to limit the first electrical connection piece 50.

[0078] A plurality of second screw holes 141 are provided at the bottom of the first installation groove 14. The first electrical connection piece 50 can be penetrated by a screw structure and connected to the second screw holes 141, so that the first electrical connection piece 50 is fixed to the bracket 10.

[0079] Please refer to Figure 4 and Figure 5 , in some embodiments, a relief groove 21 is provided at the first end of the first copper bar 20. The first electrical connection piece 50 is received in the relief groove 21, and the first end of the first copper bar 20 abuts against the first electrical connection piece 50. The first copper bar 20 and the first electrical connection piece 50 are electrically connected by contact, and the relief groove 21 provides a space for accommodating the first electrical connection piece 50, improving space utilization.

[0080] Exemplarily, the first end of the first copper bar 20 is bent away from the first installation groove 14 to form the relief groove 21.

[0081] When installing the first copper bar 20 and the first power connection piece 50, the first power connection piece 50 can be first installed in the first installation groove 14 and fixed to the bracket 10, and then the first copper bar 20 can be installed in the first positioning groove 11, so that the first end of the first copper bar 20 can directly overlap the surface of the first power connection piece 50, improving the installation efficiency.

[0082] In this embodiment, a first connection hole 22 is provided at the first end of the first copper bar 20, and a first installation hole 51 is provided on the first power connection piece 50. The first connection hole 22 is used to communicate with the first installation hole 51. A third screw connection hole 142 is further provided at the bottom of the first installation groove 14.

[0083] When the first power connection piece 50 is located in the first installation groove 14 and the first copper bar 20 is located in the first positioning groove 11, the first connection hole 22, the first installation hole 51 and the third screw connection hole 142 are in communication. A screw structure can be passed through the first copper bar 20 and the first power connection piece 50 and connected to the third screw connection hole 142, so that the first copper bar 20 and the first power connection piece 50 are simultaneously fixed to the bracket 10, ensuring stable contact between the first copper bar 20 and the first power connection piece 50.

[0084] In some embodiments, the first power connection piece 50 is further provided with a first wiring hole 52, and the first wiring hole 52 is used to be fixed and electrically connected to the first cable 400 (refer to Figure 1 ) through a screw structure. Exemplarily, a plurality of first wiring holes 52 are provided, and the plurality of first wiring holes 52 are spaced apart on the first power connection piece 50.

[0085] In some embodiments, the second positioning groove 12 is formed by being recessed from the surface of the bracket 10. The second positioning groove 12 and the first positioning groove 11 are arranged parallel to each other as a whole. The shape of the second positioning groove 12 is adapted to the shape of the second copper bar 30, and the second positioning groove 12 penetrates through the bracket 10 and is close to one side of the second end of the second copper bar 30.

[0086] When the second copper bar 30 is received in the second positioning groove 12, the groove wall of the second positioning groove 12 abuts against the side wall of the second copper bar 30 to limit the second copper bar 30, and the second end of the second copper bar 30 extends out of one side of the bracket 10 to facilitate the connection of the second end of the second copper bar 30 to other structures.

[0087] A fourth screw connection hole 121 is provided at the bottom of the second positioning groove 12. The second end of the second copper bar 30 can be passed through by a screw structure and connected to the fourth screw connection hole 121, so that the second end of the second copper bar 30 is fixed to the bracket 10.

[0088] In some embodiments, both the second mounting groove 15 and the third mounting groove 16 are formed by recessing the surface of the bracket 10. The shape of the second mounting groove 15 is adapted to the shape of the second electrical connection piece 60, and the shape of the third mounting groove 16 is adapted to the shape of the fuse piece 70. The third mounting groove 16 communicates with one side of the second positioning groove 12 close to the first end of the second copper row 30, and the second mounting groove 15 communicates with the third mounting groove 16.

[0089] When the second electrical connection piece 60 is received in the second mounting groove 15, the groove wall of the second mounting groove 15 abuts against the side wall of the second electrical connection piece 60 to limit the second electrical connection piece 60. When the fuse piece 70 is received in the third mounting groove 16, the groove wall of the third mounting groove 16 abuts against the side wall of the fuse piece 70 to limit the fuse piece 70. In this way, the connection stability between the second electrical connection piece 60, the fuse piece 70 and the second copper row 30 is improved.

[0090] In some embodiments, a plurality of fifth screw holes 151 are provided at the bottom of the second mounting groove 15. The second electrical connection piece 60 can be penetrated by a screw structure and connected to the fifth screw holes 151 so that the second electrical connection piece 60 is fixed to the bracket 10.

[0091] In some embodiments, the second copper row 30 and the second electrical connection piece 60 are electrically connected by respectively contacting both ends of the fuse piece 70.

[0092] A sixth screw hole 152 is further provided at the bottom of the second mounting groove 15, and a seventh screw hole 122 is further provided in the second positioning groove 12. The sixth screw hole 152 and the seventh screw hole 122 are respectively located at both ends of the third mounting groove 16. The second electrical connection piece 60 is provided with a second mounting hole 61 communicating with the sixth screw hole 152. The second copper row 30 is provided with a second connection hole 31 communicating with the seventh screw hole 122.

[0093] Through hole structures are respectively provided at both ends of the fuse piece 70. One end of the fuse piece 70 is placed on the surface of the second electrical connection piece 60 and is penetrated by a screw structure and connected to the sixth screw hole 152 so that one end of the fuse piece 70 and the second electrical connection piece 60 are simultaneously fixed to the bracket 10; the other end of the fuse piece 70 is placed on the surface of the second end of the second copper row 30 and is penetrated by a screw structure and connected to the seventh screw hole 122 so that the other end of the fuse piece 70 and the second end of the second copper row 30 are simultaneously fixed to the bracket 10.

[0094] When installing the second copper bar 30, the second power connection piece 60 and the fuse piece 70, the second copper bar 30 can be first installed in the second positioning groove 12 and fixed to the bracket 10, the second power connection piece 60 can be installed in the second installation groove 15 and fixed to the bracket 10, and then the fuse piece 70 can be installed in the third installation groove 16 so that both ends of the fuse piece 70 can be respectively lapped on the second copper bar 30 and the second power connection piece 60, and then the fuse piece 70 can be respectively fixed to the second copper bar 30 and the second power connection piece 60.

[0095] In some embodiments, the second power connection piece 60 is further provided with a second wiring hole 62 which is used for being fixed and electrically connected with the second cable 500 (refer to Figure 1 ). Exemplarily, a plurality of second wiring holes 62 are provided, and the plurality of second wiring holes 62 are spaced apart on the second power connection piece 60.

[0096] In some embodiments, the fixing groove 13 is formed by being recessed from the surface of the bracket 10, and the shape of the fixing groove 13 is adapted to the shape of the magnetic ring 40. The fixing groove 13 is perpendicular to the first positioning groove 11 as a whole, and the fixing groove 13 passes through the middle parts of the first positioning groove 11 and the second positioning groove 12.

[0097] The magnetic ring 40 is embedded in the fixing groove 13, and the fixing manner of the magnetic ring 40 to the bracket 10 can be: silicone is applied in the fixing groove 13 to bond and fix the magnetic ring 40. By embedding and fixing the magnetic ring 40 to the bracket 10, the installation stability of the magnetic ring 40 can be improved, the risk of the magnetic ring 40 loosening and falling is reduced, and at the same time, a larger magnetic ring 40 can be installed on the bracket 10 to meet the requirement of reducing the electromagnetic interference of large current.

[0098] Please refer to Figure 1 and Figure 3 , in some embodiments, the width of the second end of the first copper bar 20 is greater than the width of the first end of the first copper bar 20 to facilitate the power connection operation between the first copper bar 20 and other structures (such as the circuit board 300).

[0099] Exemplarily, the second end of the first copper bar 20 is provided with a first power connection hole 23 which is used for being fixed and achieving electrical connection with other structures through a screw structure. Among them, a plurality of first power connection holes 23 are provided, and the plurality of first power connection holes 23 are spaced apart at the second end of the first copper bar 20.

[0100] In some embodiments, the width of the second end of the second copper bar 30 is greater than the width of the first end of the second copper bar 30 to facilitate the power connection operation between the second copper bar 30 and other structures (such as the circuit board 300).

[0101] Exemplarily, a second power connection hole 32 is provided at the second end of the second copper bar 30. The second power connection hole 32 is used to be fixed to other structures through a screw structure and achieve electrical connection. Among them, a plurality of second power connection holes 32 are provided, and the plurality of second power connection holes 32 are spaced apart and distributed at the second end of the second copper bar 30.

[0102] It can be understood that in the example of this embodiment, the second ends of the first copper bar 20 and the second copper bar 30 are both configured to have a larger width. In other examples, either the second end of the first copper bar 20 or the second end of the second copper bar 30 can be configured to have a larger width. Specifically, it can be configured according to actual requirements, such as space occupation requirements, connection stability requirements, etc. This application does not limit this.

[0103] Specifically, the second ends of the first copper bar 20 and the second copper bar 30 are symmetrically distributed. The width of the second end of the first copper bar 20 gradually increases in the direction away from the first end, and an inclined surface is formed on the side of the first copper bar 20 away from the second copper bar 30. The width of the second end of the second copper bar 30 gradually increases in the direction away from the first end, so as to also form an inclined surface on the side of the second copper bar 30 away from the first copper bar 20, so that the first copper bar 20 and the second copper bar 30 expand outward from the middle respectively, increasing the widths of the second ends of the first copper bar 20 and the second copper bar 30, and leaving a spacing between the second ends of the first copper bar 20 and the second copper bar 30 to improve space utilization.

[0104] It can be understood that by using the characteristics that the first ends of the first copper bar 20 and the second copper bar 30 are relatively narrow, when installing the first copper bar 20, the second copper bar 30 and the magnetic ring 40, the first ends of the first copper bar 20 and the second copper bar 30 can be first passed through the magnetic ring 40, so that the magnetic ring 40 is sleeved on the middle parts of the first copper bar 20 and the second copper bar 30 to form a whole, and then installed on the bracket 10 to improve the installation efficiency.

[0105] Please refer to Figure 1 and Figure 2 , this application also provides a photovoltaic inverter device 1000. The photovoltaic inverter device 1000 includes a chassis 200, a circuit board 300 and a power connection module 100. Among them, the power connection module 100 and the circuit board 300 are both arranged in the chassis 200. A waterproof connector 201 is arranged on one side of the chassis 200, and the waterproof connector 201 is for a cable to pass through. The circuit board 300 and the cable are respectively electrically connected to the power connection module 100. The cable includes a first cable 400 and a second cable 500.

[0106] Among them, the power connection module 100 has a bracket 10, a first copper bar 20 and a second copper bar 30. The first copper bar 20 and the second copper bar 30 can be used as positive and negative electrodes during power connection. Taking the first copper bar 20 as the negative electrode and the second copper bar 30 as the positive electrode as an example.

[0107] The bracket 10 is attached and installed on the preset rivet studs inside the chassis 200 by screws. The first end of the first copper busbar 20 can be connected to the first cable 400, and the first end of the second copper busbar 30 can be connected to the second cable 500. The first cable 400 and the second cable 500 are connected to external devices. The second end of the first copper busbar 20 can be connected to the negative terminal of the circuit board 300, and the second end of the second copper busbar 30 can be connected to the positive terminal of the circuit board 300.

[0108] The power connection module 100 provided in this application adopts an integrated structure. When installing the power connection module 100, components such as the first copper busbar 20, the second copper busbar 30, and the magnetic ring 40 can be pre-assembled on the bracket 10 first, and then the bracket 10 can be fixed to the chassis 200 by screws. After installation, power connection can be carried out. In this way, the installation rate and production efficiency can be improved, and at the same time, the space utilization rate of the components inside the chassis 200 can be increased. Moreover, the chassis 200 in this application adopts a waterproof connector 201 instead of a through-wall terminal, with lower production costs and a neater and more complete appearance of the chassis 200.

[0109] For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, from any point of view, the above embodiments of this application should be regarded as exemplary and non-limiting. The scope of this application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed in this application.

Claims

1. A power connection module, characterized in that: include: The first copper bar; a second copper bar, spaced apart from the first copper bar; A magnetic ring, wherein the first copper bar and the second copper bar are both passed through the magnetic ring; A bracket, one side of which is provided with a first positioning groove, a second positioning groove and a fixing groove, wherein the first positioning groove and the second positioning groove are arranged in a row and spaced apart from each other, and the first positioning groove and the second positioning groove are both connected to the fixing groove; Wherein, the first copper bar is arranged in the first positioning groove, the second copper bar is arranged in the second positioning groove, and the magnetic ring is arranged in the fixing groove.

2. The power connection module according to claim 1, characterized in that: The power connection module further includes a first power connection plate and a second power connection plate, wherein the first power connection plate and the second power connection plate are spaced apart and arranged on the bracket; The first power terminal is connected to the first end of the first copper busbar, and the first power terminal is used to connect to an external device through a first cable; The second power terminal is connected to the first end of the second copper busbar, and the second power terminal is used to connect to an external device through a second cable.

3. The power connection module according to claim 2, characterized in that: A first end of the first copper bar is provided with a clearance groove, the first power connection piece is received in the clearance groove, and the first copper bar is supported by the first power connection piece.

4. The power connection module according to claim 3, characterized in that: A first connection hole is provided at the first end of the first copper busbar, and a first mounting hole is provided at the first power connection plate. The first connection hole is used to communicate with the first mounting hole.

5. The power connection module according to claim 2, characterized in that: The bracket is provided with a first installation slot, the first installation slot is communicated with the first positioning slot, and the first power terminal is provided in the first installation slot.

6. The power connection module according to claim 2, characterized in that: There is a distance between the second electrical connection plate and the first end of the second copper bar; The power connection module further includes a fuse plate, which is arranged on the bracket, and the second power connection plate and the first end of the second copper bar are respectively connected to the fuse plate.

7. The power connection module according to claim 6, characterized in that: A first through hole is provided at one end of the safety piece, and a second through hole is provided at the other end of the safety piece; The second copper busbar is provided with a second connection hole, and the second connection hole is used to be connected with the first through hole; the second power connection plate is provided with a second mounting hole, and the second mounting hole is used to be connected with the second through hole.

8. The power connection module according to claim 6, characterized in that: The bracket is provided with a second mounting slot and a third mounting slot, the second mounting slot and the third mounting slot are respectively connected to the third mounting slot; the second power connection piece is provided in the second mounting slot, and the safety piece is provided in the third mounting slot.

9. The power connection module according to claim 2, characterized in that: The width of the second end of the first copper bar is greater than the width of the first end of the first copper bar; and / or the width of the second end of the second copper bar is greater than the width of the first end of the second copper bar.

10. A photovoltaic inverter device, characterized in that: It comprises a chassis, a circuit board and a power connection module as described in any one of claims 1 to 9, wherein the power connection module and the circuit board are both arranged in the chassis, a waterproof connector is provided on one side of the chassis, the waterproof connector is for cables to pass through, and the circuit board and the cables are electrically connected to the power connection module respectively.

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