Inverter

Abstract

The utility model is suitable for the technical field of power equipment, and provides an inverter. The inverter includes: a first mounting member and a second mounting member connected side by side; a power circuit board mounted on the first mounting member; the EPS terminal and the EMS communication board are mounted on the second mounting piece; a first strong current line for electrically connecting the EPS terminal and the power circuit board; the first weak wire is used for electrically connecting the EMS communication board with the power circuit board; the shielding side plate is mounted on the first mounting piece and is positioned between the power circuit board and the second mounting piece; part of the first strong electric wire is arranged along the first side of the shielding side plate, part of the first weak electric wire is arranged along the second side of the shielding side plate, and the first strong electric wire and the first weak electric wire are far away from each other and do not intersect. When the inverter is used, the shielding side plate can block electromagnetic interference generated by the first strong electric wire, so that the influence on the first weak electric wire is weakened, and the signal quality of the first weak electric wire is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power equipment, and more particularly to an inverter. BACKGROUND

[0002] The inverter is a power electronic device, mainly used for converting direct current (DC) into alternating current (AC). In the related art, the inverter is usually equipped with multiple strong current lines and weak current lines and corresponding interfaces; these interfaces are arranged on the same surface to realize the concentration of outgoing lines and facilitate wiring. However, such a layout may cause electromagnetic interference generated by the strong current lines to affect the weak current lines, thereby affecting the performance of the inverter. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiments of the application is to provide an inverter, which aims to solve the technical problem that the electromagnetic interference generated by the strong current lines in the related art easily affects the weak current lines.

[0004] To achieve the above-mentioned purpose, according to one aspect of the application, an inverter is provided, comprising: a first mounting member and a second mounting member connected side by side; a power circuit board installed on the first mounting member; an EPS terminal and an EMS communication board installed on the second mounting member; a first strong current line for electrical connection between the EPS terminal and the power circuit board; a first weak current line for electrical connection between the EMS communication board and the power circuit board; a shielding side plate installed on the first mounting member and located between the power circuit board and the second mounting member; part of the first strong current line is routed along a first side of the shielding side plate, and part of the first weak current line is routed along a second side of the shielding side plate, and the first strong current line and the first weak current line are arranged away from each other and do not intersect.

[0005] Optionally, the inverter further comprises an EMS circuit board and a second weak current line; the EMS circuit board is installed on the second mounting member, and the EMS circuit board is electrically connected with the EMS communication board; the second weak current line is used for electrical connection between the EMS circuit board and the power circuit board; at least part of the second weak current line is routed along the second side of the shielding side plate, and the first strong current line and the second weak current line are arranged away from each other and do not intersect.

[0006] Optionally, the inverter further comprises a COM communication terminal and a third weak current line, the COM communication terminal is installed on the second mounting member and located on a side of the EMS communication board away from the EPS terminal; the third weak current line is used for electrical connection between the COM communication terminal and the power circuit board; the shielding side plate is arranged on a first side of the power circuit board, part of the third weak current line is routed along a second side of the power circuit board, and the first strong current line and the third weak current line are arranged away from each other and do not intersect.

[0007] Optionally, the inverter further comprises a WIFI collector and a fourth low-voltage wire, the WIFI collector is installed on the second mounting member and located between the EMS communication board and the COM communication terminal; the WIFI collector is electrically connected with the EMS circuit board through the fourth low-voltage wire, and the EMS circuit board is arranged close to the WIFI collector.

[0008] Optionally, the inverter further comprises a support member installed on the first mounting member, the support member comprises a support top plate and a shielding side plate; an IO circuit board installed on the support top plate and electrically connected with the power circuit board; a control circuit board installed on the power circuit board and arranged away from the IO circuit board; a PV switch installed on the second mounting member and located on a side of the EMS communication board away from the EPS terminal; a second high-voltage wire for electrical connection between the PV switch and the IO circuit board; the second high-voltage wire is routed along the second side of the power circuit board and the third side of the power circuit board in sequence, and the second high-voltage wire is arranged without intersecting the first low-voltage wire, the second low-voltage wire and the third low-voltage wire.

[0009] Optionally, the inverter further comprises a shielding support installed on the first mounting member and located on the second side of the power circuit board; the shielding support has a shielding channel, and part of the second high-voltage wire is arranged on the shielding support, and part of the first low-voltage wire, part of the second low-voltage wire and part of the third low-voltage wire are arranged in the shielding channel.

[0010] Optionally, the inverter further comprises a battery switch and a third high-voltage wire, the battery switch is installed on the second mounting member and located on a side of the PV switch away from the EMS communication board; the third high-voltage wire is used for electrical connection between the battery switch and the IO circuit board; the third high-voltage wire is routed along the second side of the power circuit board, and the second high-voltage wire is arranged without intersecting the first low-voltage wire, the second low-voltage wire and the third low-voltage wire, and part of the third high-voltage wire is arranged on the shielding support.

[0011] Optionally, the second high-voltage wire and the third high-voltage wire arranged on the shielding support form a high-voltage beam; and / or, the control circuit board is provided with a penetrating through hole, and the third high-voltage wire is arranged in the penetrating through hole.

[0012] Optionally, the inverter further comprises a GRID terminal and a fourth high-voltage wire, the GRID terminal is installed on the second mounting member and located on a side of the EPS terminal away from the EMS communication board; the GRID terminal is electrically connected with the IO circuit board through the fourth high-voltage wire; the second mounting member is provided with a mounting groove, the EMS circuit board is installed in the mounting groove, part of the first low-voltage wire and part of the second low-voltage wire are routed along the side wall of the mounting groove, part of the fourth high-voltage wire is fixed on the shielding side plate and routed along the second side of the shielding side plate, and the fourth high-voltage wire is arranged away from and without intersecting the first low-voltage wire and the second low-voltage wire.

[0013] Optionally, the inverter further comprises a lamp plate, a weak current connecting wire and a magnetic ring, the lamp plate is fixed on the support top plate; the lamp plate is electrically connected with the power circuit board through the weak current connecting wire; the weak current connecting wire is close to the fourth strong current wire, and part of the weak current connecting wire is arranged on and wound around the magnetic ring.

[0014] The inverter provided by the application has the beneficial effects that: when the inverter is used, the shielding side plate can effectively block the electromagnetic interference generated by the first strong current wire, thereby weakening the influence on the first weak current wire; meanwhile, the first strong current wire and the first weak current wire are arranged to be far away from and not intersect with each other, which can isolate the electromagnetic interference generated by the first strong current wire, thereby weakening the influence on the first weak current wire; the above design not only effectively guarantees the signal quality of the first weak current wire, but also separates the first strong current wire and the first weak current wire, thereby significantly reducing the risk of electric shock and effectively guaranteeing the safety of the inverter and the operator; in addition, the above design not only helps to identify and maintain the first strong current wire and the first weak current wire, thereby reducing the complexity of maintenance operation, but also helps to weaken the influence of the heat generated by the first strong current wire on the first weak current wire. By shielding electromagnetic interference and improving safety, the first strong current wire and the first weak current wire used in combination in the application significantly improve the reliability and safety of the inverter, thereby ensuring that the inverter can operate normally. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1 Part of the structure schematic diagram of the inverter provided by the application is hidden after the support, the IO circuit board, the second strong current wire, the third strong current wire and the fourth strong current wire;

[0017] Figure 2 Part of the structure schematic diagram of the inverter provided by the application is hidden after the support, the IO circuit board, the second strong current wire, the third strong current wire and the fourth strong current wire;

[0018] Figure 3 For Figure 1 the enlarged schematic diagram of A in the middle;

[0019] Figure 4 For Figure 1 the enlarged schematic diagram of B in the middle;

[0020] Figure 5 the side view schematic diagram of the inverter provided by the application;

[0021] Figure 6Part structure schematic diagram of inverter with lamp plate, connecting weak current line and magnetic ring provided by the embodiment of the present application is shown in the figure.

[0022] Figure 7 For Figure 6 Enlarged schematic diagram at C in the middle;

[0023] The label details involved in the above figures are as follows:

[0024] 10, first mounting member; 20, second mounting member; 21, concentrated mounting surface; 22, mounting groove;

[0025] 200, power circuit board; 300, EPS terminal; 400, EMS communication board; 500, first strong current line; 600, first weak current line; 700, EMS circuit board; 800, second weak current line; 900, COM communication terminal; 1000, third weak current line; 1100, WIFI collector; 1200, fourth weak current line;

[0026] 1300, support member; 1310, support top plate; 1320, shielding side plate;

[0027] 1400, IO circuit board; 1500, control circuit board; 1600, PV switch; 1700, second strong current line; 1800, shielding support; 1810, shielding channel; 1900, battery switch; 2000, third strong current line; 2100, GRID terminal; 2200, fourth strong current line;

[0028] 2300, lamp plate; 2400, connecting weak current line; 2500, magnetic ring. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, indicate directions or positions based on the directions or positions shown in the drawings, and are used for convenience of description and simplification of description only, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0032] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0033] As described in the background, an inverter is a power electronic device mainly used for converting direct current (DC) into alternating current (AC). In the related art, the inverter is usually equipped with a plurality of strong and weak electric wires and corresponding interfaces; these interfaces are arranged on the same surface to realize the concentration of outgoing wires and facilitate wiring. However, such a layout can cause interference between strong and weak electric wires, thereby affecting the performance of the inverter.

[0034] Reference Figures 1 to 5 In order to solve the above problems, according to one aspect of the application, the embodiments of the application provide an inverter, which comprises a first mounting member 10, a second mounting member 20, a power circuit board 200, an EPS terminal 300, an EMS communication board 400, a first strong electric wire 500, a first weak electric wire 600 and a shielding side plate 1320, wherein the second mounting member 20 is connected side by side with the first mounting member 10; the power circuit board 200 is installed on the first mounting member 10; the EPS terminal 300 is installed on the second mounting member 20; the EMS communication board 400 is installed on the second mounting member 20; the first strong electric wire 500 is used for electrical connection between the EPS terminal 300 and the power circuit board 200; the first weak electric wire 600 is used for electrical connection between the EMS communication board 400 and the power circuit board 200; the shielding side plate 1320 is installed on the first mounting member 10 and located between the power circuit board 200 and the second mounting member 20; part of the first strong electric wire 500 is routed along a first side of the shielding side plate 1320, and part of the first weak electric wire 600 is routed along a second side of the shielding side plate 1320, and the first strong electric wire 500 and the first weak electric wire 600 are arranged away from each other and do not intersect.

[0035] In the embodiment of the application, the inverter is an energy storage inverter; the first mounting member 10 and the second mounting member 20 are fixedly connected by means of connecting screws, clamping or welding. The power circuit board 200 is fixedly installed on the first mounting member 10 by means of connecting screws or other means. The EPS terminal 300 and the EMS communication board 400 are fixedly installed on the second mounting member 20 by means of connecting screws or other means and are arranged at intervals; the full name of EPS in English is Electrical Power Supply, and the Chinese name is power supply; the full name of EMS in English is Energy Management System, and the Chinese name is energy management system. The second mounting member 20 has a centralized mounting surface 21, and the centralized mounting surface 21 is provided with first exposed through holes and second exposed through holes arranged at intervals, the EPS terminal 300 covers the first exposed through holes, and the EMS communication board 400 covers the second exposed through holes.

[0036] The shielding side plate 1320 is made of a material resistant to electromagnetic interference, such as a metal material, a conductive polymer or an electromagnetic shielding material; the second side of the shielding side plate 1320 is located on the side of the shielding side plate 1320 away from the power circuit board 200. The first end of the first strong current wire 500 is electrically connected to the power circuit board 200, and the second end of the first strong current wire 500 is electrically connected to the EPS terminal 300; a part of the first strong current wire 500 is fixedly installed on the first mounting member 10 by means of a cable clamp, a cable tie or a wire slot and is located at the first side of the shielding side plate 1320 to achieve electrical connection with the power circuit board 200; the other part of the first strong current wire 500 is located at the second side of the shielding side plate 1320 to achieve electrical connection with the EPS terminal 300. The first end of the first weak current wire 600 is electrically connected to the power circuit board 200, and the second end of the first weak current wire 600 is electrically connected to the EMS communication board 400; a part of the first weak current wire 600 is fixedly installed on the second mounting member 20 by means of a cable clamp, a cable tie or a wire slot and is located at the second side of the shielding side plate 1320 to achieve electrical connection with the EMS communication board 400; the other part of the first weak current wire 600 is located at the first side of the shielding side plate 1320 to achieve electrical connection with the power circuit board 200.

[0037] In use, the inverter of the present application not only effectively blocks the electromagnetic interference generated by the first strong current line 500, thereby weakening the influence on the first weak current line 600, but also effectively isolates the electromagnetic interference generated by the first strong current line 500, thereby weakening the influence on the first weak current line 600, because the first strong current line 500 and the first weak current line 600 are arranged away from and not intersecting with each other. The above design not only effectively guarantees the signal quality of the first weak current line 600, but also separates the first strong current line 500 and the first weak current line 600, thereby significantly reducing the risk of electric shock and effectively guaranteeing the safety of the inverter and the operator. In addition, the above design not only helps to identify and maintain the first strong current line 500 and the first weak current line 600, thereby reducing the complexity of maintenance operation, but also helps to weaken the influence of the heat generated by the first strong current line 500 on the first weak current line 600. By shielding electromagnetic interference and improving safety, the first strong current line 500 and the first weak current line 600 used in cooperation in the present application significantly improve the reliability and safety of the inverter, ensuring that the inverter can operate normally.

[0038] Referring to Figures 1 to 5 In an embodiment, the inverter further comprises an EMS circuit board 700 and a second weak current line 800, the EMS circuit board 700 is installed on the second mounting member 20, and the EMS circuit board 700 is electrically connected with the EMS communication board 400; the second weak current line 800 is used for electrically connecting the EMS circuit board 700 with the power circuit board 200; at least part of the second weak current line 800 is arranged along the second side of the shielding side plate 1320, and the first strong current line 500 and the second weak current line 800 are arranged away from and not intersecting with each other.

[0039] In the present embodiment, the EMS circuit board 700 is installed on the second mounting member 20 by a bracket, a carrier or a screw. The first end of the second weak current line 800 is electrically connected with the power circuit board 200, and the second end of the second weak current line 800 is electrically connected with the EMS circuit board 700. Part of the second weak current line 800 is fixedly installed on the second mounting member 20 by a cable clamp, a cable tie or a wire slot, and is located at the second side of the shielding side plate 1320 to achieve electrical connection with the EMS circuit board 700; the other part of the second weak current line 800 is located at the first side of the shielding side plate 1320 to achieve electrical connection with the power circuit board 200.

[0040] The above design not only effectively blocks and isolates the electromagnetic interference generated by the first strong electric wire 500, thereby weakening the influence on the second weak electric wire 800 and effectively guaranteeing the signal quality of the second weak electric wire 800, but also realizes the separation of the first strong electric wire 500 and the second weak electric wire 800, thereby effectively guaranteeing the safety of the inverter and the operator. In addition, the above design is also helpful for identifying and maintaining the first strong electric wire 500 and the second weak electric wire 800, thereby reducing the complexity of maintenance operation, and is also helpful for weakening the influence of the heat generated by the first strong electric wire 500 on the second weak electric wire 800.

[0041] In addition, in order to facilitate management, neat wiring and space saving, part of the first weak electric wire 600 and part of the second weak electric wire 800 are bundled together.

[0042] Referring to Figures 1 to 5 In an embodiment, the inverter further comprises a COM communication terminal 900 and a third weak electric wire 1000. The COM communication terminal 900 is installed on the second mounting member 20 and located on the side of the EMS communication board 400 away from the EPS terminal 300. The third weak electric wire 1000 is used for electrically connecting the COM communication terminal 900 and the power circuit board 200. The shielding side plate 1320 is arranged on the first side of the power circuit board 200. Part of the third weak electric wire 1000 is arranged along the second side of the power circuit board 200. The first strong electric wire 500 and the third weak electric wire 1000 are arranged away from each other and do not intersect.

[0043] In the embodiment, the COM communication terminal 900 is fixedly installed on the second mounting member 20 by a connecting screw or other means. COM is the English full name of Communication, which is the Chinese name of communication. The third exposed hole is arranged on the concentrated installation surface 21, and the COM communication terminal 900 covers the third exposed hole. The second side of the power circuit board 200 is arranged adjacent to the first side of the power circuit board 200. The first end of the third weak electric wire 1000 is electrically connected to the power circuit board 200, and the second end of the third weak electric wire 1000 is electrically connected to the COM communication terminal 900. Part of the third weak electric wire 1000 is fixedly installed on the second mounting member 20 by a cable clamp, a cable tie or a wire slot, and is located at the second side of the shielding side plate 1320 to realize electrical connection with the COM communication terminal 900. The other part of the third weak electric wire 1000 is located at the first side of the shielding side plate 1320 to realize electrical connection with the power circuit board 200.

[0044] The above design not only effectively blocks and isolates the electromagnetic interference generated by the first strong electric wire 500, thereby weakening the influence on the third weak electric wire 1000, effectively guaranteeing the signal quality of the third weak electric wire 1000, but also realizes the separation of the first strong electric wire 500 and the third weak electric wire 1000, effectively guaranteeing the safety of the inverter and the operator; in addition, the above design is also helpful for identifying and maintaining the first strong electric wire 500 and the third weak electric wire 1000, reducing the complexity of maintenance operation, and also helps to weaken the influence of the heat generated by the first strong electric wire 500 on the third weak electric wire 1000.

[0045] In addition, in order to facilitate management, neat wiring and save space, the first weak electric wire 600, the second weak electric wire 800 and the third weak electric wire 1000 are bundled together at the shielding side plate 1320 to form a weak electric wire bundle.

[0046] Referring to Figures 1 to 5 In an embodiment, the inverter further comprises a WIFI collector 1100 and a fourth weak electric wire 1200, the WIFI collector 1100 is installed on the second mounting member 20 and located between the EMS communication board 400 and the COM communication terminal 900; the WIFI collector 1100 is electrically connected with the EMS circuit board 700 through the fourth weak electric wire 1200, and the EMS circuit board 700 is arranged close to the WIFI collector 1100.

[0047] In the embodiment, the WIFI collector 1100 is fixedly installed on the second mounting member 20; the English full name of WIFI is Wireless Fidelity, and the Chinese name is Wireless Fidelity; the fourth exposed hole is arranged on the concentrated installation surface 21 and covers the fourth exposed hole. The first end of the fourth weak electric wire 1200 is electrically connected with the EMS circuit board 700, and the second end of the fourth weak electric wire 1200 is electrically connected with the WIFI collector 1100. The EMS circuit board 700 is arranged close to the WIFI collector 1100, and the orthographic projection surface of the EMS circuit board 700 is located on the WIFI collector 1100, which helps to shorten the length of the fourth weak electric wire 1200. Shortening the line not only can reduce the energy loss of the signal in the transmission process, thereby improving the strength and quality of the signal, but also can reduce the influence of external electromagnetic interference on the signal, thereby improving the stability and reliability of the signal; in addition, the above design is also helpful for reducing the signal delay and simplifying the management and arrangement of the cable.

[0048] Referring to Figures 1 to 5In an embodiment, the inverter further comprises a support 1300, an IO circuit board 1400, a control circuit board 1500, a PV switch 1600, and a second strong current wire 1700, wherein the support 1300 is mounted on the first mounting member 10, the support 1300 comprises a support top plate 1310 and a shielding side plate 1320; the IO circuit board 1400 is mounted on the support top plate 1310 and electrically connected with the power circuit board 200; the control circuit board 1500 is mounted on the power circuit board 200; the PV switch 1600 is mounted on the centralized mounting surface 21 and located at a side of the EMS communication board 400 away from the EPS terminal 300; the second strong current wire 1700 is used for electrical connection between the PV switch 1600 and the IO circuit board 1400; the second strong current wire 1700 is routed along the second side of the power circuit board 200 and the third side of the power circuit board 200 in sequence, and the second strong current wire 1700 is arranged without intersecting with the first weak current wire 600, the second weak current wire 800, and the third weak current wire 1000.

[0049] In the embodiment, the support 1300 is made of a material resistant to electromagnetic interference, such as a metal material, a conductive polymer, or an electromagnetic shielding material; the support top plate 1310 is fixedly mounted on the first mounting member 10 by means of connecting screws, clamping, or welding; the shielding side plate 1320 is located at a side of the support top plate 1310 close to the second mounting member 20 and is fixedly mounted on the first mounting member 10 by means of connecting screws, clamping, or welding. The IO circuit board 1400 is fixedly mounted on the support top plate 1310 by means of connecting screws or welding, IO is the English name of Input / Output, and the Chinese name is input / output; the IO circuit board 1400 is electrically connected with the power circuit board 200 by means of plug-in or connecting wires. The control circuit board 1500 is fixedly mounted on the power circuit board 200 and electrically connected with the power circuit board 200, and there is a spacing between the control circuit board 1500 and the IO circuit board 1400. The PV switch 1600 is fixedly mounted on the second mounting member 20, PV is the English name of Photovoltaic, and the Chinese name is photovoltaic; the fifth exposed through hole is arranged on the centralized mounting surface 21, and the PV switch 1600 covers the fifth exposed through hole. The third side of the power circuit board 200 is arranged adjacent to the second side of the power circuit board and opposite to the first side of the power circuit board 200; the first end of the second strong current wire 1700 is electrically connected with the IO circuit board 1400, and the second end of the second strong current wire 1700 is electrically connected with the PV switch 1600; a part of the second strong current wire 1700 is routed along the second side of the power circuit board 200 and the third side of the power circuit board 200 in sequence by means of cable clamps, cable ties, or wire slots and is fixedly mounted on the first mounting member 10.

[0050] The above design not only effectively reduces the influence of the electromagnetic interference generated by the second strong electric wire 1700 on the control circuit board 1500, effectively guarantees the normal use of the control circuit board 1500, but also realizes the separation of the second strong electric wire 1700 and the control circuit board 1500, effectively guarantees the safety of the inverter and the operator; in addition, the above design also helps to maintain the second strong electric wire 1700 and the control circuit board 1500, reduces the complexity of the maintenance operation, and also helps to reduce the influence of the heat generated by the second strong electric wire 1700 on the control circuit board 1500.

[0051] With reference to Figures 1 to 5 In an embodiment, the inverter further comprises a shielding bracket 1800, which is installed on the first mounting member 10 and located on the second side of the power circuit board 200; the shielding bracket 1800 has a shielding channel 1810, and part of the second strong electric wire 1700 is arranged on the shielding bracket 1800, and part of the first weak electric wire 600, part of the second weak electric wire 800 and part of the third weak electric wire 1000 are arranged in the shielding channel 1810.

[0052] In the embodiment, the shielding bracket 1800 is made of an anti-electromagnetic interference material, such as a metal material, a conductive polymer or an electromagnetic shielding material; the shielding bracket 1800 is fixedly installed on the first mounting member 10, and the shielding bracket 1800 is roughly in the shape of an inverted U, and the shielding channel 1810 extends towards the surface of the first mounting member 100. Part of the second strong electric wire 1700 is fixedly installed on the surface of the shielding bracket 1800 away from the surface of the first mounting member 10 by using a cable clamp, a cable tie or a wire slot, so as to be arranged on the shielding bracket 1800; part of the first weak electric wire 600, part of the second weak electric wire 800 and part of the third weak electric wire 1000 are arranged in the shielding channel 1810 and are bundled together.

[0053] The shielding bracket 1800 and the shielding channel 1810 used in combination in the present application not only effectively block the electromagnetic interference generated by the second strong electric wire 1700, thereby reducing the influence on the first weak electric wire 600, effectively guaranteeing the signal quality of the first weak electric wire 600, but also realizing the separation of the second strong electric wire 1700 and the first weak electric wire 600, effectively guaranteeing the safety of the inverter and the operator; in addition, the above design also helps to identify and maintain the second strong electric wire 1700 and the first weak electric wire 600, reduces the complexity of the maintenance operation, and also reduces the influence of the heat generated by the second strong electric wire 1700 on the first weak electric wire 600.

[0054] With reference to Figures 1 to 5In an embodiment, the inverter further comprises a battery switch 1900 and a third strong electric wire 2000. The battery switch 1900 is mounted on the second mounting member 20 and located on the side of the PV switch 1600 away from the EMS communication board 400. The third strong electric wire 2000 is used for electrically connecting the battery switch 1900 and the IO circuit board 1400. The third strong electric wire 2000 is routed along the second side of the power circuit board 200. The second strong electric wire 1700, the first weak electric wire 600, the second weak electric wire 800, and the third weak electric wire 1000 are arranged without intersection. Part of the third strong electric wire 2000 is arranged on the shielding support 1800.

[0055] In the embodiment, the battery switch 1900 is fixedly mounted on the second mounting member 20. The sixth exposed through hole is arranged on the concentrated mounting surface 21. The battery switch 1900 covers the sixth exposed through hole. The first end of the third strong electric wire 2000 is electrically connected to the IO circuit board 1400. The second end of the third strong electric wire 2000 is electrically connected to the battery switch 1900. Part of the third strong electric wire 2000 is routed along the second side of the power circuit board 200 by using a cable clamp, a cable tie, or a wire slot and is fixedly mounted on the first mounting member 10.

[0056] The above design not only effectively blocks and isolates the electromagnetic interference generated by the third strong electric wire 2000, thereby weakening the influence on the first weak electric wire 600, but also effectively guarantees the signal quality of the first weak electric wire 600. In addition, the above design also realizes the separation of the third strong electric wire 2000 and the first weak electric wire 600, thereby effectively guaranteeing the safety of the inverter and the operator. Furthermore, the above design also helps to identify and maintain the third strong electric wire 2000 and the first weak electric wire 600, thereby reducing the complexity of the maintenance operation and weakening the influence of the heat generated by the third strong electric wire 2000 on the first weak electric wire 600.

[0057] Referring to Figures 1 to 5 In an embodiment, the second strong electric wire 1700 and the third strong electric wire 2000 arranged on the shielding support 1800 are formed as one strong electric beam. In the embodiment, the second strong electric wire 1700 and the third strong electric wire 2000 arranged on the shielding support 1800 are bundled together or tied together. This design helps to simplify the management and arrangement of the cables.

[0058] Referring to Figures 1 to 5 The control circuit board 1500 is provided with a penetrating through hole. The third strong electric wire 2000 is arranged in the penetrating through hole. The above design helps to shorten the length of the third strong electric wire 2000. Shortening the length of the wire can not only reduce the resistance and voltage drop, thereby improving the power transmission efficiency, but also reduce the electromagnetic interference generated by the wire itself, thereby weakening the influence on the surrounding weak electric wires. In addition, the above design also helps to reduce the cost and simplify the management and arrangement of the cables.

[0059] Referring toFigure 6 In an embodiment, the inverter further comprises a GRID terminal 2100 and a fourth strong electric wire 2200, the GRID terminal 2100 is installed on the second mounting member 20 and located on the side of the EPS terminal 300 away from the EMS communication board 400; the GRID terminal 2100 is electrically connected with the IO circuit board 1400 through the fourth strong electric wire 2200; the second mounting member 20 is provided with a mounting groove 22, the EMS circuit board 700 is installed in the mounting groove 22, part of the first weak electric wire 600 and part of the second weak electric wire 800 are routed along the side wall surface of the mounting groove 22, and part of the fourth strong electric wire 2200 is fixed on the shielding side plate 1320 and routed along the second side of the shielding side plate 1320, the fourth strong electric wire 2200 is arranged away from and not intersecting with the first weak electric wire 600 and the second weak electric wire 800.

[0060] In the embodiment, the EMS circuit board 700 is installed on the side wall surface of the mounting groove 22 close to the first mounting member 10, part of the first weak electric wire 600 and part of the second weak electric wire 800 are routed along the side wall surface of the mounting groove 22 close to the first mounting member 10. The GRID terminal 2100 is fixedly installed on the second mounting member 20, and the Chinese name of GRID is power grid; the seventh exposed through hole is arranged on the concentrated mounting surface 21, and the GRID terminal 2100 covers the seventh exposed through hole. The first end of the fourth strong electric wire 2200 is electrically connected with the IO circuit board 1400, and the second end of the fourth strong electric wire 2200 is electrically connected with the GRID terminal 2100; part of the fourth strong electric wire 2200 is fixedly installed on the surface of the shielding side plate 1320 close to the concentrated mounting surface 21 by using a cable clamp, a cable tie or a wire slot.

[0061] The above not only effectively reduces the influence of the electromagnetic interference generated by the fourth strong electric wire 2200 on the first weak electric wire 600, effectively guarantees the normal use of the control circuit board 1500, but also realizes the separation of the fourth strong electric wire 2200 and the first weak electric wire 600, effectively guarantees the safety of the inverter and the operator; in addition, the above design is also helpful for maintaining the fourth strong electric wire 2200 and the first weak electric wire 600, reduces the complexity of the maintenance operation, and is also helpful for reducing the influence of the heat generated by the fourth strong electric wire 2200 on the first weak electric wire 600.

[0062] Referring to Figure 7 and ​ In an embodiment, the inverter further comprises a lamp plate 2300, a connecting weak electric wire 2400 and a magnetic ring 2500, the lamp plate 2300 is fixed on the support top plate 1310; the lamp plate 2300 is electrically connected with the power circuit board 200 through the connecting weak electric wire 2400; the connecting weak electric wire 2400 is close to the fourth strong electric wire 2200, and part of the connecting weak electric wire 2400 is arranged on and wound around the magnetic ring 2500.

[0063] In the embodiment, the lamp plate 2300 is fixedly installed on the support top plate 1310; the first end of the weak current wire 2400 is electrically connected with the lamp plate 2300, and the second end of the weak current wire 2400 is electrically connected with the power circuit board 200. The magnetic ring 2500 is located in the same plane as the fourth strong current wire 2200, and part of the weak current wire 2400 passes through and winds around the magnetic ring 2500. This design not only effectively reduces the influence of the electromagnetic interference generated by the fourth strong current wire 2200 on the weak current wire 2400, effectively guarantees the signal quality of the weak current wire 2400, but also enables the magnetic ring 2500 and the weak current wire 2400 to be fixedly connected and fixedly stay at the specified position.

[0064] In summary, the inverter provided by the embodiment has at least the following beneficial technical effects: when the inverter is used, the shielding side plate 1320 can effectively block the electromagnetic interference generated by the first strong current wire 500, thereby reducing the influence on the first weak current wire 600; at the same time, the first strong current wire 500 and the first weak current wire 600 are arranged to be far away from and not intersect with each other, which can isolate the electromagnetic interference generated by the first strong current wire 500, thereby reducing the influence on the first weak current wire 600; the above design not only effectively guarantees the signal quality of the first weak current wire 600, but also separates the first strong current wire 500 and the first weak current wire 600, significantly reduces the risk of electric shock, and effectively guarantees the safety of the inverter and the operator; in addition, the above design not only helps to identify and maintain the first strong current wire 500 and the first weak current wire 600, reduces the complexity of maintenance operation, but also helps to reduce the influence of the heat generated by the first strong current wire 500 on the first weak current wire 600. By shielding electromagnetic interference and improving safety, the first strong current wire 500 and the first weak current wire 600 used in combination in the application significantly improve the reliability and safety of the inverter, and ensure that the inverter can operate normally.

[0065] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An inverter, characterized by comprising: The inverter comprises: a first mounting member and a second mounting member connected side by side; a power circuit board mounted on the first mounting member; an EPS terminal and an EMS communication board mounted on the second mounting member; a first strong current wire for electrical connection between the EPS terminal and the power circuit board; a first weak current wire for electrical connection between the EMS communication board and the power circuit board; a shielding side plate mounted on the first mounting member and located between the power circuit board and the second mounting member; part of the first strong current wire is routed along a first side of the shielding side plate, and part of the first weak current wire is routed along a second side of the shielding side plate, and the first strong current wire and the first weak current wire are arranged away from each other and do not intersect.

2. The inverter of claim 1, wherein, The inverter further comprises an EMS circuit board and a second weak current wire; the EMS circuit board is mounted on the second mounting member, and the EMS circuit board is electrically connected to the EMS communication board; the second weak current wire is used for electrical connection between the EMS circuit board and the power circuit board; at least part of the second weak current wire is routed along the second side of the shielding side plate, and the first strong current wire and the second weak current wire are arranged away from each other and do not intersect.

3. The inverter of claim 2, wherein, The inverter further comprises a COM communication terminal and a third weak current wire; the COM communication terminal is mounted on the second mounting member and located on a side of the EMS communication board away from the EPS terminal; the third weak current wire is used for electrical connection between the COM communication terminal and the power circuit board; the shielding side plate is arranged on a first side of the power circuit board, part of the third weak current wire is routed along a second side of the power circuit board, and the first strong current wire and the third weak current wire are arranged away from each other and do not intersect.

4. The inverter of claim 3, wherein, The inverter further comprises a WIFI collector and a fourth weak current wire; the WIFI collector is mounted on the second mounting member and located between the EMS communication board and the COM communication terminal; the WIFI collector is electrically connected to the EMS circuit board through the fourth weak current wire, and the EMS circuit board is arranged close to the WIFI collector.

5. The inverter according to claim 3 or 4, characterized by The inverter further comprises a support member mounted on the first mounting member, the support member comprising a support top plate and the shielding side plate; an IO circuit board mounted on the support top plate and electrically connected to the power circuit board; a control circuit board mounted on the power circuit board and arranged away from the IO circuit board; a PV switch mounted on the second mounting member and located on a side of the EMS communication board away from the EPS terminal; a second strong current wire for electrical connection between the PV switch and the IO circuit board; the second strong current wire is routed along a second side of the power circuit board and a third side of the power circuit board in sequence, and the second strong current wire does not intersect with the first weak current wire, the second weak current wire, and the third weak current wire.

6. The inverter of claim 5, wherein, The inverter further comprises a shielding bracket, which is mounted on the first mounting member and located on the second side of the power circuit board; the shielding bracket has a shielding channel, part of the second strong current wires are arranged on the shielding bracket, and part of the first weak current wires, part of the second weak current wires and part of the third weak current wires are arranged in the shielding channel.

7. The inverter of claim 6, wherein, The inverter further comprises a battery switch and a third strong current wire, the battery switch is mounted on the second mounting member and located on the side of the PV switch away from the EMS communication board; The third strong current wire is used for electrical connection between the battery switch and the IO circuit board; the third strong current wire is arranged along the second side of the power circuit board, and the second strong current wire, the first weak current wire, the second weak current wire and the third weak current wire are arranged without intersection; part of the third strong current wire is arranged on the shielding bracket.

8. The inverter of claim 7, wherein, The second strong current wire and the third strong current wire arranged on the shielding bracket form a strong current beam; and / or, The control circuit board is provided with a penetrating through hole, and the third strong current wire is arranged in the penetrating through hole.

9. The inverter of claim 5, wherein, The inverter further comprises a GRID terminal and a fourth strong current wire, the GRID terminal is mounted on the second mounting member and located on the side of the EPS terminal away from the EMS communication board; The GRID terminal is electrically connected with the IO circuit board through the fourth strong current wire; the second mounting member is provided with a mounting groove, the EMS circuit board is mounted in the mounting groove, part of the first weak current wire and part of the second weak current wire are arranged along the side wall of the mounting groove, part of the fourth strong current wire is fixed on the shielding side plate and arranged along the second side of the shielding side plate, and the fourth strong current wire is arranged away from and without intersection with the first weak current wire and the second weak current wire.

10. The inverter of claim 9, wherein, The inverter further comprises a lamp plate, a connecting weak current wire and a magnetic ring, the lamp plate is fixed on the support top plate; the lamp plate is electrically connected with the power circuit board through the connecting weak current wire; The connecting weak current wire is arranged close to the fourth strong current wire, and part of the connecting weak current wire is arranged penetrating and winding on the magnetic ring.

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