Communication device for photovoltaic inverter

Abstract

The utility model discloses a communication device for a photovoltaic inverter, which comprises a first shell, a second shell and a circuit board arranged between the first shell and the second shell, the first surface of the circuit board is arranged opposite to the first shell, the second surface of the circuit board is arranged opposite to the second shell, and the first surface of the circuit board is arranged opposite to the second shell. The communication device also comprises a buckle assembly which is used for connecting the first housing and the second housing. The fixing columns are used for fixing the circuit board, the fixing columns comprise the first fixing column and the second fixing column, the first fixing column is arranged on the first shell, the second fixing column is arranged on the second shell, and the circuit board is clamped between the first fixing column and the second fixing column. The communication device provided by the utility model can save working hours, and avoids the occupation of screws on the space of the circuit board and the hidden danger of insulation at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of inverters, and in particular relates to a communication device for a photovoltaic inverter. Background Art

[0002] At present, there are more and more communication products used in conjunction with inverters, and the market competition is becoming more and more fierce, with higher and higher requirements for product costs and space. Most of the current industries use screws to fix circuit boards and housings. While increasing the production man-hours during product production and assembly, the screw fixing method has a certain impact on the circuit board. When wiring, not only will the layout and routing of the circuit board be affected by the screw holes, but there may also be certain insulation risks. Therefore, it is necessary to design a communication product to solve the above problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a communication device for a photovoltaic inverter, which can save man-hours and avoid the occupation of circuit board space by screws and insulation risks.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A communication device for a photovoltaic inverter, comprising a first housing, a second housing, and a circuit board arranged between the first housing and the second housing, wherein a first surface of the circuit board is arranged opposite to the first housing, and a second surface of the circuit board is arranged opposite to the second housing, and the communication device further comprises:

[0006] A buckle assembly, used to connect the first shell and the second shell;

[0007] A fixing column is used to fix the circuit board, and the fixing column includes a first fixing column and a second fixing column. The first fixing column is arranged on the first shell, and the second fixing column is arranged on the second shell. The circuit board is clamped between the first fixing column and the second fixing column.

[0008] Preferably, the communication device further comprises a positioning member for positioning the circuit board, and the positioning member is arranged at the bottom of the second shell.

[0009] More preferably, the first housing includes an upper housing, the second housing includes a lower housing, the upper housing and the first surface of the circuit board are arranged opposite to each other, and the lower housing and the second surface of the circuit board are arranged opposite to each other.

[0010] Preferably, the first fixing column extends downward from the top of the first shell, and the second fixing column extends upward from the bottom of the second shell, and one of the first fixing column and the second fixing column is in close contact with the long side of the circuit board, and the other is in close contact with the short side of the circuit board.

[0011] Preferably, the first fixing column and the second fixing column are in close contact with the edge of the circuit board respectively.

[0012] Preferably, the positioning member and the fixing column are both made of plastic.

[0013] Preferably, the circuit board is provided with a plurality of through holes for the positioning members to be inserted into, and the through holes are distributed along the length direction of the circuit board.

[0014] Preferably, the diameter of the through hole is 5-8 mm.

[0015] Preferably, the buckle assembly includes a buckle and a slot, the first shell is provided with a plurality of buckles, the second shell is provided with a plurality of slots, the buckle is inserted into the slot to fix the first shell and the second shell together, which greatly saves the assembly time of workers on the production line and reduces the types of materials.

[0016] Preferably, the first shell and the second shell have side edges for accommodating the connector of the circuit board, and the other side edges of the first shell and the second shell are fixedly connected by the snap assembly.

[0017] The utility model adopts the above solution, which has the following advantages compared with the prior art:

[0018] The utility model of the communication device for photovoltaic inverters, during installation, the first shell and the second shell are directly fixedly connected by a snap assembly, and at the same time, the circuit board is clamped between the first fixing column and the second fixing column. That is, there is no need to use screws to lock the first shell and the second shell, and the circuit board is not fixed by screws, which greatly saves workers' assembly hours on the production line, reduces the types of materials, avoids the occupation of the circuit board space by screws and insulation risks, and increases the wiring and routing space of the circuit board; in addition, when installing the circuit board, the circuit board is directly placed on the second shell from top to bottom, and the installation process is relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic diagram of an assembled communication device according to an embodiment of the utility model;

[0021] Figure 2 is an exploded schematic diagram of a communication device according to an embodiment of the utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0023] in,

[0024] 1. First housing; 11. First fixing column; 2. Second housing; 21. Positioning member; 22. Second fixing column; 3. Cavity;

[0025] 4. Buckle assembly; 41. Buckle; 42. Slot; 5. Circuit board; 51. Through hole; 52. Connector; 53. First surface; 54. Second surface. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] This embodiment provides a communication device for a photovoltaic inverter, which is used for inverter working information collection and energy scheduling management. The communication device is installed indoors and connected to the photovoltaic inverter via a network cable.

[0028] Reference Figures 1 to 3 As shown, the communication device includes a first housing 1, a second housing 2 and a circuit board 5. The first housing 1 and the second housing 2 are two independently arranged housings before being assembled. Figure 2 The upper shell shown, the second shell is Figure 2 The lower housing is shown.

[0029] Furthermore, there is a cavity 3 for accommodating the circuit board 5 between the first shell 1 and the second shell 2, and the circuit board 5 is arranged between the first shell 1 and the second shell 2. More specifically, the cavity 3 includes an upper cavity and a lower cavity, and the circuit board 5 is located in the lower cavity. The first surface 53 of the circuit board 5 is arranged opposite to the first shell 1, and the second surface 54 of the circuit board 5 is arranged opposite to the second shell 2. More specifically, the first surface 53 of the circuit board 5 is arranged opposite to the upper shell 1, and the second surface 54 of the circuit board 5 is arranged opposite to the lower shell 2. The "first surface" here refers to the side that is closer to the first shell 1, and the "second surface" refers to the side that is closer to the second shell 2. The circuit board 5 of this embodiment can be placed directly on the second shell 2 from top to bottom during assembly, and the assembly process is relatively simple and the operation is relatively convenient.

[0030] The second housing 2 is provided with a positioning member 21 for positioning the circuit board 5. The positioning member 21 is located at the bottom of the second housing 2 and is distributed along the length direction of the second housing 2. The manufacturing process is relatively simple. Specifically, the number of positioning members 21 is two. In other embodiments, the number of positioning members 21 may be greater than two. The circuit board 5 is provided with two through holes 51, and the diameter of the through holes 51 is 5-8 mm. When installing the circuit board 5, the circuit board 5 is placed on the second housing 2 from top to bottom, and the positioning member 21 is inserted into the through hole 51. Not only positioning is achieved, but also the circuit board 5 is prevented from moving in the front, back, left and right directions.

[0031] Reference Figure 2 As shown, the first shell 1 and the second shell 2 are fixedly connected by a plurality of snap-fit ​​assemblies 4 , the first shell 1 and the second shell 2 have sides for accommodating the connector 52 of the circuit board 5 , and the other sides of the first shell 1 and the second shell 2 are fixedly connected by the snap-fit ​​assemblies 4 .

[0032] Furthermore, combined with Figure 2 and Figure 3 As shown, the buckle assembly 4 includes a buckle 41 and a slot 42. A plurality of buckles 41 are provided on the first shell 1, and a plurality of slots 42 are provided at corresponding positions on the second shell 2. The buckles 41 are inserted into the slots 42 to fix the first shell 1 and the second shell 2 together. Specifically, the number of buckles 41 and slots 42 is 6. Except for one side of the connector, two buckle assemblies 4 are provided on the other three sides of the communication device. Each buckle 41 and slot 42 cooperates with each other to connect the first shell 1 and the second shell 2 together, which improves the convenience of installation, does not need to use screws to fix, and reduces the assembly time and production material types.

[0033] The first housing 1 and / or the second housing 2 are provided with a fixing column, and the fixing column is in close contact with the edge of the circuit board 5. The fixing column and the positioning member 21 are made of plastic, and the first housing 1 and the second housing 2 are also made of plastic. The circuit board 5 is not fixed with screws, which reduces the interference of the screws on the circuit board 5, avoids insulation hazards, and increases the wiring and routing space of the circuit board 5. Specifically in this embodiment, the first housing 1 and the second housing 2 are both provided with a fixing column.

[0034] Furthermore, the fixing column includes a first fixing column 11 and a second fixing column 22, and the circuit board 5 is clamped between the first fixing column 11 and the second fixing column 22. The first housing 1 is provided with a first fixing column 11, and the first fixing column 11 extends downward from the top of the first housing 1; the second housing 2 is provided with a second fixing column 22, and the second fixing column 22 extends upward from the bottom of the second housing 2; Figure 2 As shown, the first fixing column 11 and the second fixing column 22 are in the shape of a cross. In other embodiments, the first fixing column 11 and the second fixing column 22 may also be in the shape of a cylinder, etc., which is not specifically limited here. The first fixing column 11 and the second fixing column 22 of this embodiment are arranged opposite to each other. When the first shell 1 and the second shell 2 are assembled, the first fixing column 11 and the second fixing column 22 can clamp the circuit board 5 at the same time, further limiting the position of the circuit board 5. The operation is relatively simple and greatly saves working time.

[0035] Furthermore, the first fixing column 11 is arranged around the first shell 1, and the second fixing column 22 is arranged around the second shell 2. Specifically, the number of the first fixing column 11 and the second fixing column 22 are both four. In other embodiments, the number of the first fixing column 11 and the second fixing column 22 may be greater than four, and the number of the first fixing column and the second fixing column is not limited here. When the communication device of this embodiment snaps the first shell 1 and the second shell 2 together, the first fixing column 11 and the second fixing column 22 can clamp and fix the circuit board 5 at the same time, and one of the first fixing column 11 and the second fixing column 22 is in tight contact with the long side of the circuit board 5, and the other is in tight contact with the short side of the circuit board 5. For example, the first fixing column 11 clamps the long side of the circuit board 5, and the second fixing column 22 clamps the short side of the circuit board 5, or the first fixing column 11 clamps the short side of the circuit board 5, and the second fixing column 22 clamps the long side of the circuit board 5. By setting the fixing column, the circuit board 5 can be clamped more stably, and no screws are used to fix the circuit board 5. That is, the communication device of this embodiment not only saves assembly time and production material types, but also avoids the influence of screws on the insulation of the circuit board 5.

[0036] Currently, the communication products used in conjunction with inverters on the market have high assembly costs, and the screw assembly method used has a certain impact on the insulation and space of the product. To address the above problems, the communication device of this embodiment can be disassembled and assembled at will during user use without the need for any tools.

[0037] Specifically, during installation, first insert the through hole 51 of the circuit board 5 into the bottom of the positioning member 21. When the circuit board 5 is positioned, it will not easily move in the front, back, left, and right directions. The installation of the circuit board 5 is also relatively convenient and quick. Then, press the buckle 41 of the first shell 1 into the slot 42 of the second shell 2. Since the first shell 1 has a plurality of first fixing columns 11 and the second shell 2 has a plurality of second fixing columns 22, when the first shell 1 and the second shell 2 are locked by the buckle assembly 4, the first fixing columns 11 and the second fixing columns 22 clamp and fix the circuit board 5, further positioning the circuit board 5 so that it is not easy to move in the up and down directions.

[0038] The communication device of this embodiment has at least the following advantages:

[0039] (1) The traditional product screw fixing method is eliminated, avoiding the occupation of circuit board space by screws and insulation risks;

[0040] (2) Simple assembly reduces product assembly time, labor costs, and material types;

[0041] (3) Improved circuit board wiring and routing space.

[0042] As shown in this specification and claims, the terms "comprises" and "include" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the relevant listed items.

[0043] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0044] The above embodiment is only for illustrating the technical concept and features of the utility model, and is a preferred embodiment. Its purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent transformation or modification made according to the principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A communication device for a photovoltaic inverter, comprising a first housing, a second housing, and a circuit board disposed between the first housing and the second housing, characterized in that: The first surface of the circuit board is disposed opposite to the first housing, the second surface of the circuit board is disposed opposite to the second housing, and the communication device further comprises: A buckle assembly, used to connect the first shell and the second shell; A fixing column is used to fix the circuit board, and the fixing column includes a first fixing column and a second fixing column. The first fixing column is arranged on the first shell, and the second fixing column is arranged on the second shell. The circuit board is clamped between the first fixing column and the second fixing column.

2. The communication device for photovoltaic inverter according to claim 1, characterized in that: The communication device further includes a positioning member for positioning the circuit board, and the positioning member is arranged at the bottom of the second housing.

3. The communication device for photovoltaic inverter according to claim 2, characterized in that: The first housing includes an upper housing, and the second housing includes a lower housing. The upper housing is disposed opposite to a first surface of the circuit board, and the lower housing is disposed opposite to a second surface of the circuit board.

4. The communication device for photovoltaic inverter according to claim 3, characterized in that: The first fixing post extends downward from the top of the first shell, and the second fixing post extends upward from the bottom of the second shell. One of the first fixing post and the second fixing post is in close contact with the long side of the circuit board, and the other is in close contact with the short side of the circuit board.

5. The communication device for photovoltaic inverter according to claim 4, characterized in that: The first fixing post and the second fixing post are respectively in close contact with the edge of the circuit board.

6. The communication device for photovoltaic inverter according to claim 2, characterized in that: The positioning piece and the fixing column are both made of plastic.

7. The communication device for photovoltaic inverter according to claim 6, characterized in that: The circuit board is provided with a plurality of through holes for the positioning members to be inserted into, and the through holes are distributed along the length direction of the circuit board.

8. The communication device for photovoltaic inverter according to claim 7, characterized in that: The diameter of the through hole is 5-8 mm.

9. The communication device for photovoltaic inverter according to claim 1, characterized in that: The buckle assembly includes a buckle and a slot. The first shell is provided with a plurality of buckles, and the second shell is provided with a plurality of slots. The buckles are inserted into the slots to fix the first shell and the second shell together.

10. The communication device for photovoltaic inverter according to claim 9, characterized in that: The first shell and the second shell have side edges for accommodating the connector of the circuit board, and the other side edges of the first shell and the second shell are fixedly connected by the buckle assembly.

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