Inverter device

Abstract

The utility model discloses an inverter device which comprises a box body (1), a box body assembly, an electrical connection assembly and a heat dissipation assembly, the box body (1) comprises a front box body and a main box body which are communicated along the width direction of the box body (1), and a back plate of the front box body is connected with an outer side plate of the main box body to form a bevel-shaped side wall; the electrical connection assembly is installed on the two wings of the bevel-shaped side wall. The heat dissipation assembly is installed on the back face of the box body (1). According to the utility model, the electrical connection assemblies are uniformly arranged and the electrical parts are reasonably arranged, so that the circuit layout in the case is optimized, wiring in equipment is greatly facilitated, the utilization of the overall space of the case is improved, heat sources concentrated in local areas of the case are greatly reduced, the heat dissipation efficiency of the case is improved, and the service life of the case is prolonged. The temperature in the box body during working is effectively reduced, and the working environment of each component is ensured, so that the service life of each component is prolonged.

Description

Technical field:

[0001] The utility model relates to the field of photovoltaic inverters, in particular to the field of inverter devices. Background technology:

[0002] The inverter is an important device in the field of electronics and electrical equipment, which uses the conversion of DC and AC as the main working state to transmit energy. The inverter device refers to the box that loads the inverter and its related equipment. It provides a good working environment for the inverter and is also convenient for installing and connecting other necessary electrical components. However, in the prior art, some inverter devices still have the following deficiencies: the box space is not reasonably planned, and the external terminals are set outside the box for easy installation. This method not only increases the overall length of the inverter device, but also makes the terminals more susceptible to physical damage or environmental influences, affecting the reliability and stability of the equipment connection. At the same time, the electrical components inside the box are placed too concentratedly, resulting in inconvenience in internal wiring. During the operation of the equipment, the heat source is concentrated in the local area of ​​the box, which directly affects the overall heat dissipation performance of the box; and the box is in a high temperature state for a long time, which is easy to cause problems such as aging of components, and in severe cases, it will cause the equipment to shut down due to overheating. Utility model content:

[0003] In order to solve the above-mentioned problems that setting the external terminals outside the box causes the overall length of the inverter device to increase, the terminals are more susceptible to physical damage affecting the reliability and stability of the equipment connection, and the electrical components inside the box are placed too concentratedly, which makes internal wiring inconvenient, affects the overall heat dissipation performance of the box, causes the box temperature to be too high, causes component aging, equipment downtime, etc., the utility model proposes an inverter device to solve the above-mentioned problems in the prior art.

[0004] The utility model provides an inverter device, comprising a box body, a box body assembly, an electrical connection assembly and a heat dissipation assembly, wherein the box body comprises a front box body and a main box body connected along the width direction of the box body, the back plate of the front box body is connected to the outer side plate of the main box body to form an angled side wall; the electrical connection assembly is installed on the two wings of the angled side wall; the heat dissipation assembly is installed on the back side of the box body.

[0005] As a further improvement of the present invention, the outer side panel of the main box body includes a first side panel and a second side panel arranged opposite to each other, the angled side wall formed by the connection between the back panel of the front box body and the first side panel is the first angled side wall, the angled side wall formed by the connection between the back panel of the front box body and the second side panel is the second angled side wall, and the electrical connection assembly includes an AC connection terminal assembly and a DC connection terminal assembly, and the DC connection terminal assembly and the AC connection terminal assembly are respectively arranged on the first angled side wall and the second angled side wall.

[0006] As a further improvement of the present invention, the AC connection terminal assembly includes: a power connector, and the electrical connection assembly also includes a communication connector, and the communication connector is arranged above the power connector.

[0007] As a further improvement of the utility model, the DC connection terminal assembly includes: a PV connector, a PV switch and a battery button switch, wherein the battery button switch is arranged below the PV switch; or a PV connector, a PV switch, a battery button switch and a battery connection circuit breaker, wherein the battery connection circuit breaker and the battery button switch are arranged below the PV switch.

[0008] As a further improvement of the utility model, the heat dissipation assembly includes: a main heat sink, a first heat dissipation shell and a second heat dissipation shell, and the first heat dissipation shell and the second heat dissipation shell are arranged on both sides of the main heat sink.

[0009] As a further improvement of the present invention, the box assembly includes: a left side plate, a right side plate, a surface cover and a dustproof heat dissipation plate, and the dustproof heat dissipation plate is arranged above the heat dissipation assembly.

[0010] As a further improvement of the present invention, the dustproof heat dissipation plate includes: a three-fold dustproof heat dissipation plate, the left side plate is provided with a first group of heat dissipation holes, the right side plate is provided with a second group of heat dissipation holes, the left and right sides of the three-fold dustproof heat dissipation plate are respectively provided with a third group of heat dissipation holes and a fourth group of heat dissipation holes, the first group of heat dissipation holes and the third group of heat dissipation holes are arranged opposite to each other, and the second group of heat dissipation holes and the fourth group of heat dissipation holes are arranged opposite to each other; or a single-strip dustproof heat dissipation plate, and heat dissipation holes are arranged above the single-strip dustproof heat dissipation plate.

[0011] As a further improvement of the utility model, a positioning and fixing component is also provided, which includes a battery pack positioning and fixing right bracket and a battery pack positioning and fixing left bracket. The battery pack positioning and fixing right bracket and the battery pack positioning and fixing left bracket are arranged on the two wings of the angled side wall of the box body and are arranged relative to each other.

[0012] As a further improvement of the present invention, the box assembly further includes a battery quick-connect plug-in connector, and a recess is further provided at the bottom of the box, and the battery quick-connect plug-in connector is arranged at the recess at the bottom of the box.

[0013] As a further improvement of the utility model, it also includes a conductive sealing strip, and the conductive sealing strip is arranged around the box body.

[0014] The beneficial effects of the utility model are as follows: by uniformly setting the electrical connection components and rationally laying out the electrical parts, the circuit layout inside the chassis is optimized, the wiring inside the equipment is greatly facilitated, the overall space utilization of the chassis is improved, and at the same time, the heat source concentrated in the local area of ​​the chassis is greatly reduced, the heat dissipation efficiency of the chassis is improved, the temperature inside the chassis during operation is effectively reduced, the working environment of each component is guaranteed, and the service life of each component is extended. Description of the drawings:

[0015] Figure 1 This is an overall schematic diagram of the first embodiment of the inverter device of the utility model. Figure 1 ;

[0016] Figure 2 This is an overall schematic diagram of the first embodiment of the utility model. Figure 2 ;

[0017] Figure 3 It is a partial enlarged schematic diagram of the utility model;

[0018] Figure 4 This is an overall schematic diagram of the second embodiment of the present utility model. Figure 1 ;

[0019] Figure 5 This is an overall schematic diagram of the second embodiment of the present utility model. Figure 2 ;

[0020] Figure 6 This is an overall schematic diagram of the second embodiment of the present utility model. Figure 3 ;

[0021] Figure 7 It is a schematic diagram of the bottom of the box body of the second embodiment of the present utility model.

[0022] The corresponding relationship between the reference numerals and the component names is as follows:

[0023] Box body—1; right side panel—3; left side panel—5; first heat dissipation shell—10; second heat dissipation shell—14;

[0024] Surface cover—16; Surface sticker—18; Main radiator—20; Tri-fold dustproof heat sink—24;

[0025] Single strip dustproof heat dissipation plate—26; right bracket for positioning and fixing the battery pack—30; left bracket for positioning and fixing the battery pack—32;

[0026] Battery push button switch—34; Battery connection circuit breaker—36; Battery pack quick-connect plug connector—40;

[0027] PV switch—50; PV connector—52; communication connector—54; power connector—56;

[0028] First angled side wall—60; second angled side wall—65. Specific implementation method:

[0029] The technical solutions in the embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. The embodiments described below by the accompanying drawings are exemplary and are only used to explain the present utility model, and cannot be understood as limiting the present utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] Embodiment 1:

[0032] like Figures 1 to 3 As shown, an embodiment of the inverter device of the utility model comprises: a box body 1, a right side plate 3, a left side plate 5, a first heat dissipation shell 10, a second heat dissipation shell 14, a cover 16, a surface sticker 18, a main radiator 20, a three-fold dustproof heat dissipation plate 24, a PV switch 50, a PV connector 52, a communication connector 54, a power connector 56, a first angled side wall 60 and a second angled side wall 65. The PV mentioned in this specification is the abbreviation of photovoltaic (Photovoltaic), which refers to the photovoltaic part of a solar photovoltaic power generation system, a device used to convert solar energy into electrical energy.

[0033] like Figure 2 As shown, the box body 1 includes a front box body and a main box body connected along the width direction of the box body 1, and the overall shape is wide in front and narrow in the back, and is concave. The outer side plate of the main box body includes a first side plate and a second side plate arranged opposite to each other. The back plate of the front box body and the first side plate are connected to form an angled side wall, which is a first angled side wall 60. The back plate of the front box body and the second side plate are connected to form an angled side wall, which is a second angled side wall 65. The concave of the box body 1 and the cover 16 form a first cavity. The first cavity is a waterproof and dustproof enclosed space, and the PCBA and the main circuit are placed in the first cavity. Countersunk holes are provided at the bends around the cover 16, which are fixed with the threaded holes on the box body 1. A concave platform is provided in the middle of the cover 16 to match the surface sticker 18. The concave platform is not limited to a circle, and can be any polygon. Conductive sealing strips are also attached to the edges around the box body 1, which are waterproof and electromagnetic shielding.

[0034] like Figure 1 and Figure 3As shown, the first angled side wall 60 and the three-fold dustproof heat dissipation plate 24 form a second cavity with the left side plate 5, and the second angled side wall 65 and the three-fold dustproof heat dissipation plate 24 form a third cavity with the right side plate 3. The second cavity and the third cavity are both provided with wiring terminals. The PV switch 50 and the PV connector 52 are located in the second cavity, and the PV switch 50 is arranged above the PV connector 52. The communication connector 54 and the power connector 56 are located in the third cavity, and the communication connector 54 is arranged above the power connector 56. By setting the third and fourth cavities to separate the components, the components are divided into the DC side and the AC side, so as to avoid the heat coupling caused by the concentrated placement of the components, improve the heat dissipation efficiency of the equipment, and reduce the interference between each other, so as to ensure the stability and reliability of the equipment operation. The left side plate 5 and the right side plate 3 are in a "C" shape, and a U-shaped card slot is provided on the inner side to be clamped with the box body 1 through a boss screw. The rear platform of the box body 1 and the tri-fold dustproof heat dissipation plate 24 form a fourth cavity, and the main radiator 20, the first heat dissipation shell 10 and the second heat dissipation shell 14 are arranged in the fourth cavity, and the main radiator 20, the first heat dissipation shell 10 and the second heat dissipation shell 14 are all arranged on the back of the box body 1, and the first heat dissipation shell 10 and the second heat dissipation shell 14 are arranged on both sides of the main radiator 20. Inductors or transformers are also arranged in the first heat dissipation shell 10 and the second heat dissipation shell 14. The tri-fold dustproof heat dissipation plate 24 is arranged above the main radiator 20, the left side plate 5 is provided with a first group of heat dissipation holes, and the right side plate 3 is provided with a second group of heat dissipation holes. The left and right sides of the tri-fold dustproof heat dissipation plate 24 are respectively provided with a third group of heat dissipation holes and a fourth group of heat dissipation holes, and a fifth group of heat dissipation holes is also provided on the top. The first group of heat dissipation holes and the third group of heat dissipation holes are arranged opposite to each other, and the second group of heat dissipation holes and the fourth group of heat dissipation holes are arranged opposite to each other, so as to facilitate the circulation of air inside the equipment.

[0035] This embodiment divides the inverter device into four cavities, uniformly sets the electrical connection components, and reasonably arranges the electrical components, which not only improves the overall space utilization of the chassis, but also greatly facilitates the wiring inside the chassis and greatly reduces the concentration of heat sources in local areas of the chassis. In addition, a large number of heat dissipation holes are set on the chassis to improve the heat dissipation efficiency of the chassis and avoid affecting the normal use of the equipment due to excessive temperature.

[0036] Embodiment 2:

[0037] like Figures 4 to 7As shown, another embodiment of the inverter device of the utility model includes: a box body 1, a right side plate 3, a left side plate 5, a first heat dissipation shell 10, a second heat dissipation shell 14, a cover 16, a surface sticker 18, a main radiator 20, a single strip dust-proof heat dissipation plate 26, a battery pack positioning and fixing right bracket 30, a battery pack positioning and fixing left bracket 32, a battery button switch 34, a battery connection circuit breaker 36, a battery pack quick-connect plug-in connector 40, a PV switch 50, a PV connector 52, a communication connector 54, a power connector 56, a first angled side wall 60 and a second angled side wall 65.

[0038] like Figure 4 , Figure 5 , Figure 6 As shown, the box body 1 includes a front box body and a main box body connected along the width direction of the box body 1, and the overall shape is concave, the outer side plate of the main box body includes a first side plate and a second side plate arranged opposite to each other, the back plate of the front box body and the first side plate are connected to form an angled side wall, which is a first angled side wall 60, and the back plate of the front box body and the second side plate are connected to form an angled side wall, which is a second angled side wall 65. The concave of the box body 1 and the cover 16 form a first cavity, and the first cavity is a waterproof and dustproof enclosed space, and the PCBA and the main circuit are placed in the first cavity. Countersunk holes are provided at the bends around the cover 16, which are fixed with the threaded holes on the box body 1. A concave platform is provided in the middle of the cover 16 to match the surface sticker 18. The concave platform is not limited to a circle, and can be any polygon. Conductive sealing strips are also attached to the edges around the main box body 1, which are waterproof and electromagnetic shielding.

[0039] like Figure 5 , Figure 6 and Figure 7As shown, the first angled side wall 60 and the left side plate 5 form a second cavity, and the second angled side wall 65 and the right side plate 3 form a third cavity. The second cavity and the third cavity are both provided with wiring terminals. The battery pack positioning and fixing left bracket 32, the battery button switch 34, the battery connection circuit breaker 36, the PV switch 50 and the PV connector 52 are located in the second cavity, and the battery connection circuit breaker 36, the battery button switch 34 and the PV switch 50 are arranged below the PV switch 50. The battery pack positioning and fixing right bracket 30, the communication connector 54 and the power connector 56 are located in the third cavity, and the communication connector 54 is arranged above the power connector 56. By setting the third and fourth cavities, the components are arranged separately, and are divided into the DC side and the AC side, so as to avoid the heat coupling caused by the concentrated placement of components, improve the heat dissipation efficiency of the equipment, and reduce the interference between each other, so as to ensure the stability and reliability of the equipment operation. The battery pack positioning and fixing right bracket 30 and the battery pack positioning and fixing left bracket 32 ​​are arranged relative to each other. The bottom of the housing 1 is also provided with a notch to form a fourth cavity, and the battery pack quick-connect plug connector 40 is located in the fourth cavity. The main radiator 20, the first heat dissipation shell 10 and the second heat dissipation shell 14 are all arranged on the back of the housing 1, and the first heat dissipation shell 10 and the second heat dissipation shell 14 are arranged on both sides of the main radiator 20. Inductors or transformer electronic devices are also arranged in the first heat dissipation shell 10 and the second heat dissipation shell 14. The single strip dustproof heat dissipation plate 26 is arranged above the main radiator 20, and heat dissipation holes are arranged above the single strip dustproof heat dissipation plate 26 to facilitate the circulation of air inside the device.

[0040] This embodiment also divides the inverter device into four cavities. In addition to reducing the concentration of heat sources in local areas of the chassis, the positioning and assembly of the inverter are facilitated by the additional positioning and fixing brackets. By setting a recess at the bottom of the chassis, the overall space utilization of the chassis is further improved, which facilitates the wiring inside the chassis.

[0041] In addition to the above embodiments, the present invention can also select and install components according to actual needs. For example, in the second embodiment, four components are provided, namely, a PV connector 52, a PV switch 50, a battery button switch 34, and a battery connection circuit breaker 36. Users can select a component combination of the PV connector 52, the PV switch 50, and the battery button switch 34 according to corresponding needs. This flexible component selection and installation method not only provides users with more choices, but also improves the applicability and practicality of the product.

[0042] The above are only some embodiments of the present invention. The overall layout of the present invention is compact and reasonable, and the installation is convenient. By uniformly setting the electrical connection components and reasonably arranging the electrical components, it not only improves the overall space utilization of the chassis, but also greatly facilitates the wiring inside the chassis, greatly reduces the heat source concentrated in the local area of ​​the chassis, improves the heat dissipation efficiency of the chassis, effectively reduces the temperature inside the chassis during operation, ensures the working environment of each component, and thus extends the service life of each component.

[0043] In the description of this specification, the description with reference to the terms "an embodiment", "an example", "a specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the present invention.

Claims

1. An inverter device, characterized in that: The invention comprises a box body (1), a box body assembly, an electrical connection assembly and a heat dissipation assembly, wherein the box body (1) comprises a front box body and a main box body connected along the width direction of the box body (1), the back plate of the front box body is connected to the outer side plate of the main box body to form an angled side wall; the electrical connection assembly is mounted on the two wings of the angled side wall; and the heat dissipation assembly is mounted on the back of the box body (1).

2. The inverter device according to claim 1, characterized in that: The outer side plate of the main box body comprises a first side plate and a second side plate which are arranged opposite to each other; the angled side wall formed by connecting the back plate of the front box body and the first side plate is a first angled side wall (60); the angled side wall formed by connecting the back plate of the front box body and the second side plate is a second angled side wall (65); the electrical connection assembly comprises an AC connection terminal assembly and a DC connection terminal assembly; the DC connection terminal assembly and the AC connection terminal assembly are respectively arranged on the first angled side wall (60) and the second angled side wall (65).

3. The inverter device according to claim 2, characterized in that: The AC connection terminal assembly includes a power connector (56). The electrical connection assembly also includes a communication connector (54). The communication connector (54) is arranged above the power connector (56).

4. The inverter device according to claim 3, characterized in that: The DC connection terminal assembly comprises: a PV connector (52), a PV switch (50) and a battery push button switch (34), wherein the battery push button switch (34) is arranged below the PV switch (50); or a PV connector (52), a PV switch (50), a battery push button switch (34) and a battery connection circuit breaker (36), wherein the battery connection circuit breaker (36) and the battery push button switch (34) are arranged below the PV switch (50).

5. The inverter device according to claim 2, characterized in that: The heat dissipation assembly comprises: a main heat sink (20), a first heat dissipation shell (10) and a second heat dissipation shell (14); the first heat dissipation shell (10) and the second heat dissipation shell (14) are arranged on both sides of the main heat sink (20).

6. The inverter device according to claim 5, characterized in that: The box assembly comprises: a left side plate (5), a right side plate (3), a surface cover (16) and a dustproof heat dissipation plate, wherein the dustproof heat dissipation plate is arranged above the heat dissipation assembly.

7. The inverter device according to claim 6, characterized in that: The dustproof heat dissipation plate comprises: a three-fold dustproof heat dissipation plate (24), the left side plate (5) is provided with a first group of heat dissipation holes, the right side plate (3) is provided with a second group of heat dissipation holes, the left and right sides of the three-fold dustproof heat dissipation plate (24) are respectively provided with a third group of heat dissipation holes and a fourth group of heat dissipation holes, the first group of heat dissipation holes and the third group of heat dissipation holes are arranged opposite to each other, and the second group of heat dissipation holes and the fourth group of heat dissipation holes are arranged opposite to each other; or a single strip dustproof heat dissipation plate (26), the single strip dustproof heat dissipation plate (26) is provided with heat dissipation holes on its top.

8. The inverter device according to claim 1, characterized in that: A positioning and fixing assembly is also provided, the positioning and fixing assembly comprising a battery pack positioning and fixing right bracket (30) and a battery pack positioning and fixing left bracket (32), the battery pack positioning and fixing right bracket (30) and the battery pack positioning and fixing left bracket (32) being arranged on two wings of the angled side wall of the box body (1) and arranged relative to each other.

9. The inverter device according to any one of claims 1 to 8, characterized in that: The box assembly further comprises a battery quick-connect plug-in connector (40), and a notch is further provided at the bottom of the box (1). The battery quick-connect plug-in connector (40) is arranged at the notch at the bottom of the box (1).

10. The inverter device according to any one of claims 1 to 8, characterized in that: It also comprises a conductive sealing strip, which is arranged around the box body (1).

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