Photovoltaic inverter controller

Abstract

The utility model discloses a photovoltaic inverter controller which comprises a casing, a first input loop, a second input loop, a third input loop and an output loop which are electrically connected with a control inversion circuit arranged in the casing, and a back heat dissipation assembly which comprises back heat dissipation positioning sheets arranged at two sides, the heat dissipation structure further comprises a plurality of back heat dissipation fins, the back heat dissipation fins are arranged in parallel at equal intervals, a heat dissipation cavity is formed between every two adjacent back heat dissipation fins, the back heat dissipation fins are fixedly connected with the machine shell, and the heat dissipation cavities are communicated with an inner cavity of the machine shell. The photovoltaic inverter controller disclosed by the utility model has the beneficial effects that the heat dissipation cavity is communicated with the inner cavity of the casing, so that heat generated by controlling the inverter circuit to work can be led out through the back heat dissipation assembly, and the heat dissipation capability of the photovoltaic inverter controller is enhanced.

Description

Technical Field

[0001] The utility model belongs to the field of photovoltaic power generation equipment, and particularly relates to a photovoltaic inverter controller. Background Art

[0002] The utility model patent with the publication number CN216134430 and the theme name of a boost circuit and a photovoltaic inverter has an IPC classification number of H02M3 / 158, H02M7 / 48, and H02S40 / 32. Its technical solution discloses that "the boost circuit has a positive input terminal PV+ and a negative input terminal PV- for connecting a photovoltaic panel 1, and a positive output terminal P+ and a negative output terminal P- for connecting an inverter circuit 2. An inductor L1 and a freewheeling diode D1 are connected in series between the positive input terminal PV+ and the positive output terminal P+. The positive electrode of the freewheeling diode D1 is electrically connected to the inductor L1, and the negative electrode of the freewheeling diode D1 is electrically connected to the positive output terminal P+. One end of a boost switch Q1 is electrically connected to the intermediate node between the inductor L1 and the freewheeling diode D1, and the other end of the boost switch Q1 is electrically connected to the intermediate node between the positive output terminal P+ and the negative output terminal P-. The boost circuit further includes a bypass switch Relay1 capable of bypassing the freewheeling diode D1 and the inductor L1. One end of the bypass switch Relay1 is electrically connected to the intermediate node between the positive input terminal PV+ and the inductor L1, and the other end of the bypass switch Relay1 is electrically connected to the intermediate node between the freewheeling diode D1 and the negative output terminal P-".

[0003] It can be seen that the above utility model patent discloses one of the control inverter circuits (i.e., the boost circuit) of the photovoltaic inverter. However, the technical solution disclosed in the above utility model patent does not further disclose the external carrier of the control inverter circuit of the photovoltaic inverter (the direct carrier of the control circuit is the circuit board), that is, the mechanical structure of the photovoltaic inverter controller, especially the heat dissipation structure, which needs to be further improved. Summary of the Utility Model

[0004] The utility model aims at the current situation of the prior art, overcomes the above defects, and provides a photovoltaic inverter controller.

[0005] The utility model adopts the following technical solutions. The photovoltaic inverter controller includes a housing, and further includes a first input circuit, a second input circuit, a third input circuit, and an output circuit that are electrically connected to a control inverter circuit built in the housing. It further includes:

[0006] A back heat dissipation assembly, the back heat dissipation assembly includes back heat dissipation positioning plates located on both sides, and also includes a plurality of back heat dissipation fins, the back heat dissipation fins are arranged in parallel with equal spacing, a heat dissipation cavity is provided between adjacent back heat dissipation fins, the back heat dissipation fins are fixedly connected to the casing, and the heat dissipation cavity is communicated with the inner cavity of the casing;

[0007] The side heat dissipation assembly includes a plurality of side heat dissipation fins. The side heat dissipation fins are provided with a fin body and fin extensions located at both ends of the fin body. The fin extensions are integrally formed with the fin body, and the fin extensions are connected to the side plates and are rotatably connected to the side plates.

[0008] As a preferred technical solution of the above technical solution, the first input circuit includes a first DC positive terminal and a first DC negative terminal, the second input circuit includes a second DC positive terminal and a second DC negative terminal, the third input circuit includes a third DC positive terminal and a third DC negative terminal, and the output circuit includes an AC live wire terminal and an AC neutral wire terminal.

[0009] As a preferred technical solution of the above technical solutions, side panels are respectively provided on both sides of the housing, and the side heat dissipation components are embedded in the side heat dissipation component positioning holes of the side panels.

[0010] As a preferred technical solution of the above technical solutions, the back heat dissipation positioning plate is provided with a positioning plate main body and a positioning plate extension portion integrally formed with the positioning plate main body, the positioning plate extension portion is located on the upper and lower sides of the positioning plate main body, and a positioning plate groove is provided between the positioning plate extension portion and the positioning plate main body.

[0011] As a preferred technical solution of the above technical solution, the main body of the positioning piece has a plurality of bolt positioning holes.

[0012] The photovoltaic inverter controller disclosed in the utility model has the following beneficial effects:

[0013] 1. The heat dissipation cavity is connected to the inner cavity of the casing, so that the heat generated by the control inverter circuit can be discharged through the back heat dissipation component, thereby enhancing the heat dissipation capacity of the photovoltaic inverter controller.

[0014] 2. The side heat dissipation fins can rotate relative to the side plates when subjected to external forces, thereby making the heat dissipation path of the photovoltaic inverter controller adjustable, thereby enhancing the heat dissipation capacity of the photovoltaic inverter controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of this application.

[0016] Figure 2 It is a side view of the present application.

[0017] Figure 3 It is a top view of the present application.

[0018] Figure 4 is a perspective view of a perspective of the present application.

[0019] Figure 5 is a perspective view of another perspective of the present application.

[0020] Figure 6 is Figure 1 a partial enlarged view of area A in

[0021] Figure 7 is Figure 1 a partial enlarged view of area B in

[0022] Figure 8 is Figure 2 a partial enlarged view of area C in

[0023] Figure 9 is Figure 3 a partial enlarged view of area D in

[0024] Figure 10 is Figure 4 a partial enlarged view of area E in

[0025] Figure 11 is Figure 4 a partial enlarged view of area F in

[0026] Figure 12 is Figure 4 a partial enlarged view of area G in

[0027] Figure 13 is Figure 5 a partial enlarged view of area H in

[0028] Reference numerals include: 100 - housing; 110 - side plate; 111 - positioning hole for side heat dissipation component; 210 - first input circuit; 211 - first DC positive terminal; 212 - first DC negative terminal; 220 - second input circuit; 221 - second DC positive terminal; 222 - second DC negative terminal; 230 - third input circuit; 231 - third DC positive terminal; 232 - third DC negative terminal; 240 - output circuit; 241 - AC live wire terminal; 242 - AC neutral wire terminal; 300 - back heat dissipation component; 301 - heat dissipation cavity; 310 - back heat dissipation positioning piece; 311 - main body part of positioning piece; 312 - extending part of positioning piece; 313 - groove of positioning piece; 314 - bolt positioning hole; 320 - back heat dissipation fins; 400 - side heat dissipation component; 410 - side heat dissipation fins; 411 - main body of fin; 412 - extending part of fin. Detailed implementation manners

[0029] The utility model discloses a photovoltaic inverter controller. Figures 1-13 , the specific implementation methods of the utility model are further described.

[0030] See attached figure Figures 1 to 13 , Figures 1 to 5 The photovoltaic inverter controller is shown in different perspectives. Figures 6 to 13 The local structures of the photovoltaic inverter controller are shown respectively.

[0031] Embodiment 1 (the back heat dissipation fins 320 are fixedly connected to the housing 100).

[0032] Preferably, the photovoltaic inverter controller includes a housing 100, a first input circuit 210, a second input circuit 220, a third input circuit 230 and an output circuit 240 electrically connected to a control inverter circuit (not shown) built in the housing 100, and further includes:

[0033] A back heat dissipation assembly 300, the back heat dissipation assembly 300 includes back heat dissipation positioning pieces 310 located on both sides (one on each side), and also includes a plurality of back heat dissipation fins 320, the back heat dissipation fins 320 are arranged in parallel at equal intervals, and a heat dissipation cavity 301 is provided between adjacent back heat dissipation fins 320, the back heat dissipation fins 320 are fixedly connected to the housing 100, and the heat dissipation cavity 301 is connected to the inner cavity of the housing 100 (not shown in the figure, the control inverter circuit is located in the inner cavity), so that the heat generated by the control inverter circuit can be discharged through the back heat dissipation assembly 300, thereby enhancing the heat dissipation capacity of the photovoltaic inverter controller;

[0034] The side heat dissipation assembly 400 includes a plurality of side heat dissipation fins 410. The side heat dissipation fins 410 are provided with a fin body 411 and fin extensions 412 located at both ends of the fin body 411. The fin extensions 412 are integrally formed with the fin body 411. The fin extensions 412 are connected to the side plate 110 and are rotatably connected to the side plate 110, so that the side heat dissipation fins 410 can rotate relative to the side plate 110 when subjected to external force, thereby making the heat dissipation path of the photovoltaic inverter controller adjustable, thereby enhancing the heat dissipation capacity of the photovoltaic inverter controller.

[0035] Among them, the first input circuit 210 includes a first DC positive terminal 211 and a first DC negative terminal 212, the second input circuit 220 includes a second DC positive terminal 221 and a second DC negative terminal 222, the third input circuit 230 includes a third DC positive terminal 231 and a third DC negative terminal 232, and the output circuit 240 includes an AC live wire terminal 241 and an AC neutral wire terminal 242.

[0036] Therein, one or more side panels 110 are respectively disposed on both sides of the housing 100 , and the side heat dissipation components 400 are embedded in the side heat dissipation component positioning holes 111 of the side panels 110 .

[0037] The back heat dissipation positioning sheet 310 also has an installation positioning function, which assists in installing the photovoltaic inverter controller on a wall or other location.

[0038] The back heat dissipation positioning piece 310 is provided with a positioning piece main body 311 and a positioning piece extension 312 integrally formed with the positioning piece main body 311 . The positioning piece extension 312 is located at the upper and lower sides of the positioning piece main body 311 . A positioning piece groove 313 is provided between the positioning piece extension 312 and the positioning piece main body 311 .

[0039] The positioning piece main body 311 and the positioning piece extension 312 are perpendicular to each other (the angle of the positioning piece extension 312 relative to the positioning piece main body 311 is 90°).

[0040] The main body 311 of the positioning piece has a plurality of bolt positioning holes 314 for accurately screwing in the bolts, so that the photovoltaic inverter controller can be stably installed on a wall or other location.

[0041] Embodiment 2 (the back heat dissipation fins 320 and the housing 100 are integrally formed).

[0042] Preferably, the photovoltaic inverter controller includes a housing 100, a first input circuit 210, a second input circuit 220, a third input circuit 230 and an output circuit 240 electrically connected to a control inverter circuit (not shown) built in the housing 100, and further includes:

[0043] A back heat dissipation assembly 300, the back heat dissipation assembly 300 includes back heat dissipation positioning pieces 310 located on both sides (one on each side), and also includes a plurality of back heat dissipation fins 320, the back heat dissipation fins 320 are arranged at equal intervals and in parallel, and a heat dissipation cavity 301 is provided between adjacent back heat dissipation fins 320, the back heat dissipation fins 320 are integrally formed with the housing 100, and the heat dissipation cavity 301 is connected with the inner cavity of the housing 100 (not shown in the figure, the control inverter circuit is located in the inner cavity), so that the heat generated by the control inverter circuit can be discharged through the back heat dissipation assembly 300, thereby enhancing the heat dissipation capacity of the photovoltaic inverter controller;

[0044] Side heat dissipation component 400, the side heat dissipation component 400 includes a plurality of side heat dissipation fins 410. The side heat dissipation fins 410 are provided with fin bodies 411 and fin extension parts 412 located at both ends of the fin bodies 411. The fin extension parts 412 are integrally formed with the fin bodies 411. The fin extension parts 412 are connected to the side plates 110 and are rotatably connected to the side plates 110, so that the side heat dissipation fins 410 can rotate relative to the side plates 110 when subjected to an external force, thereby making the heat dissipation path of the photovoltaic inverter controller adjustable, and further enhancing the heat dissipation capacity of the photovoltaic inverter controller.

[0045] Among them, the first input circuit 210 includes a first DC positive terminal 211 and a first DC negative terminal 212, the second input circuit 220 includes a second DC positive terminal 221 and a second DC negative terminal 222, the third input circuit 230 includes a third DC positive terminal 231 and a third DC negative terminal 232, and the output circuit 240 includes an AC live wire terminal 241 and an AC neutral wire terminal 242.

[0046] Among them, side plates 110 are respectively provided on both sides of the casing 100, and the side heat dissipation component 400 is embedded in the side heat dissipation component positioning holes 111 of the side plates 110.

[0047] Among them, the back heat dissipation positioning piece 310 also has the function of installation positioning, and assists in installing the photovoltaic inverter controller at positions such as on a wall.

[0048] Among them, the back heat dissipation positioning piece 310 is provided with a positioning piece main body part 311 and a positioning piece extension part 312 integrally formed with the positioning piece main body part 311. The positioning piece extension part 312 is located on the upper and lower sides of the positioning piece main body part 311, and there is a positioning piece groove 313 between the positioning piece extension part 312 and the positioning piece main body part 311.

[0049] Among them, the positioning piece main body part 311 and the positioning piece extension part 312 are perpendicular to each other (the angle of the positioning piece extension part 312 relative to the positioning piece main body part 311 is 90°).

[0050] Among them, the positioning piece main body part 311 has a plurality of bolt positioning holes 314, so as to accurately screw in bolts, so that the photovoltaic inverter controller is firmly installed at positions such as on a wall.

[0051] It is worth mentioning that the technical features such as the control inverter circuit involved in the patent application of the present utility model should be regarded as the prior art. The specific structures, working principles, and possible control methods and spatial arrangement methods of these technical features can be selected conventionally in the art, and should not be regarded as the invention points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.

[0052] Those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A photovoltaic inverter controller, comprising a casing, and further comprising a first input loop, a second input loop, a third input loop and an output loop which are electrically connected to a control and inversion circuit built in the casing, characterized in that, Further included are: A back heat dissipation component, which includes back heat dissipation positioning pieces located on both sides, and also includes a plurality of back heat dissipation fins. The back heat dissipation fins are arranged at equal intervals and in parallel. There is a heat dissipation cavity between adjacent back heat dissipation fins. The back heat dissipation fins are fixedly connected to the casing, and the heat dissipation cavity is communicated with the inner cavity of the casing; A side heat dissipation component, which includes a plurality of side heat dissipation fins. The side heat dissipation fins are provided with a fin body and fin extension parts located at both ends of the fin body. The fin extension parts are integrally formed with the fin body, and the fin extension parts are inserted into the side plate and rotatably connected to the side plate.

2. The photovoltaic inverter controller according to claim 1, wherein The first input circuit includes a first DC positive terminal and a first DC negative terminal. The second input circuit includes a second DC positive terminal and a second DC negative terminal. The third input circuit includes a third DC positive terminal and a third DC negative terminal. The output circuit includes an AC live wire terminal and an AC neutral wire terminal.

3. The photovoltaic inverter controller according to claim 1, characterized in that, Side plates are respectively provided on both sides of the casing, and the side heat dissipation component is embedded in the side heat dissipation component positioning holes of the side plates.

4. The photovoltaic inverter controller according to claim 1, characterized in that The back heat dissipation positioning piece is provided with a positioning piece main body part and a positioning piece extension part integrally formed with the positioning piece main body part. The positioning piece extension parts are located on the upper and lower sides of the positioning piece main body part. There is a positioning piece groove between the positioning piece extension part and the positioning piece main body part.

5. The photovoltaic inverter controller according to claim 1, characterized in that, The positioning piece main body part has a plurality of bolt positioning holes.

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