Inverter structure with built-in WiFi function

Abstract

The utility model belongs to the technical field of inverters, and particularly discloses an inverter structure with a built-in WiFi function, which comprises a shell, an interface board is fixed on one side of the shell, a WiFi module with an interference signal isolation function is mounted in the shell, the WiFi module is detachably connected with the interface board through a connecting mechanism, and the interface board is connected with the WiFi module through a connecting mechanism. The WiFi module is arranged in the shell, the wiring board is covered on the shell, the WiFi module is arranged in the shell, the connecting mechanism is arranged in the shell, a buffering piece used for buffering protection of the WiFi module is arranged between the connecting mechanism and the WiFi module, a wiring cover is arranged above the WiFi module, and the wiring cover is covered on the shell, the WiFi module is arranged in the shell, the wiring board is covered on the shell, and the WiFi module is protected through the wiring board, so that the WiFi module is protected, and the service life of the WiFi module is prolonged. In addition, the WiFi module can be installed and maintained by disassembling the wiring board, the WiFi module has an interference signal isolation function, and the WiFi module is arranged in a built-in mode under the condition that the stability of the WiFi function is guaranteed, so that the size of the inverter is effectively reduced, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of inverter technology, specifically to an inverter structure with built-in WiFi functionality. Background Technology

[0002] In photovoltaic power plants, inverters are typically equipped with WiFi functionality to monitor and manage inverter status more intuitively. Currently, WiFi functionality in inverters is usually implemented using an external WiFi module. The WiFi module can be independently cooled to avoid interference with the core components of the inverter and ensure system stability.

[0003] For example, patent application number 201721169623.7 discloses a photovoltaic grid-connected inverter, in which the inductor is located on the back of the heat sink substrate. The heat sink is mounted on the back plate of the housing. A sealing strip is embedded on the front of the heat sink substrate. The panel is embedded in the front of the housing, and a sealing strip is affixed to the contact area between the two. A DC-AC power circuit board is mounted on the front of the heat sink substrate, with the power devices on the DC-AC power circuit board in close contact with the heat sink substrate; the relay circuit board is located in the lower right part of the DC-AC power circuit board; the main control circuit board is located in the lower left part of the DC-AC power circuit board; and the power supply circuit board is located in the upper part of the DC-AC power circuit board. The input terminals of the photovoltaic grid-connected inverter are located at the bottom of the housing. The DC switch output side is connected to the input terminals of the DC-AC power circuit board and connected to the power grid through a DC 3-pin connector. The DC pin connector, WIFI antenna, and RS485 connector are located at the bottom of the housing.

[0004] However, since the aforementioned external WIFI antenna requires independent installation space and increases the size of the device, we need to propose an inverter structure with built-in WIFI functionality to solve the above problems, so that the WIFI antenna can be built into the housing while ensuring signal stability, thereby reducing the size of the device. Utility Model Content

[0005] The purpose of this invention is to provide an inverter structure with built-in WiFi functionality, which can integrate the WiFi antenna inside the housing while ensuring signal stability, thereby reducing the size of the device and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an inverter structure with built-in WiFi function, including a housing, an interface board fixed on one side of the housing, a WiFi module with interference signal isolation function installed inside the housing, the WiFi module being detachably connected to the interface board via a connecting mechanism, a buffer for buffering and protecting the WiFi module being provided between the connecting mechanism and the WiFi module, and a wiring cover being provided above the WiFi module, the wiring cover being closed on the housing.

[0007] Preferably, the housing includes a base and a top cover, the top cover and the wiring cover being placed side by side on top of the base, and a display screen being mounted on the top cover.

[0008] Preferably, a slot for mounting the interface plate is provided on one side of the base, and air inlet covers are installed on both sides of the base adjacent to the interface plate, with the air inlet covers located at the end of the base opposite to the interface plate.

[0009] Preferably, the connecting mechanism includes a mounting plate, which is screwed onto the interface plate, and the interface plate has through holes for mounting the interface plate, and the mounting plate has multiple clearance holes.

[0010] Preferably, the WiFi module includes a WiFi circuit board, on which a WiFi antenna is fixed. The interface board has a through hole for the WiFi antenna receiver to pass through, and a rubber sleeve is embedded in the through hole. The rubber sleeve is fitted onto the receiver of the WiFi antenna.

[0011] Preferably, a filter capacitor for isolating interference signals is fixed on the WiFi circuit board, and the filter capacitor is located on one side of the WiFi antenna.

[0012] Preferably, the WiFi circuit board is also fixed with a network cable interface, the network cable interface is offset from the mounting plate, and the interface plate has a connection hole for connecting the network cable interface.

[0013] Preferably, the WiFi circuit board is further equipped with multiple connectors, which are installed at the edge of the WiFi circuit board and have different connection pins.

[0014] Preferably, multiple buffers are provided, and the multiple buffers are fixed at different positions on the WiFi circuit board, with one end of each buffer abutting against the inner wall of the interface board.

[0015] Preferably, the buffer includes a support column fixed on the WiFi circuit board, a support plate fixed to one end of the support column, a rubber sheet fixed to one side of the support plate, and the rubber sheet abutting against the inner wall of the interface board.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model places the WiFi module inside the housing, with a wiring board covering the housing. The wiring board protects the WiFi module, and the WiFi module can be installed and maintained by removing the wiring board. The WiFi module has an interference signal isolation function. By internally setting the WiFi module while ensuring stable WiFi function, the efficiency is reduced, the size of the inverter is reduced, and the convenience of use is improved.

[0018] 2. This utility model, through the cooperation of the buffer component and the WiFi module, can provide a certain degree of buffer protection for the WiFi module, reduce the damage caused by external impacts to the WiFi module, and improve the service life of the WiFi module to a certain extent. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a top view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure when the WiFi module and the connection mechanism of this utility model are connected;

[0022] Figure 4 This is a schematic diagram of the WiFi module structure of this utility model.

[0023] In the diagram: 1. Top cover; 2. Wiring cover; 3. Power switch; 4. Interface board; 5. WiFi module; 51. Mounting plate; 52. WiFi circuit board; 53. WiFi antenna; 54. Rubber sleeve; 55. Clearance hole; 56. Network cable interface; 57. Buffer; 571. Support column; 572. Rubber sheet; 58. Connector; 59. Filter capacitor; 6. Base; 7. Display screen; 8. Air inlet cover; 9. Fan bracket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4This utility model provides a technical solution: an inverter structure with built-in WiFi function, including a housing, an interface board 4 fixed on one side of the housing, a WiFi module 5 with interference signal isolation function installed inside the housing, the WiFi module 5 being detachably connected to the interface board 4 via a connecting mechanism, a buffer 57 for buffering and protecting the WiFi module 5 being provided between the connecting mechanism and the WiFi module 5, a wiring cover 2 being provided above the WiFi module 5 and covering the housing, a fan bracket 9 being installed inside the housing, an inverter main control board being installed on one side of the fan bracket 9, the inverter main control board being electrically connected to a display screen 7 and the WiFi module 5, the inverter main control board being used to control the WiFi module 5 to communicate with external devices, the display screen 7 being used to display the operating parameters of the inverter and the setting of the inverter parameters, this utility model does not improve the inverter main control board, the inverter main control board uses technology known in the art.

[0026] By placing the WiFi module 5 inside the housing, and with the wiring board on the top cover 1 of the housing, the WiFi module 5 is protected by the wiring board. The WiFi module 5 can also be installed and maintained by removing the wiring board. The WiFi module 5 has an interference signal isolation function. While ensuring the stability of the WiFi function, the WiFi module 5 is built-in, which reduces the size of the inverter and improves the convenience of use, without degrading efficiency.

[0027] The housing includes a base 6 and a top cover 1. The top cover 1 and the wiring cover 2 are placed side by side on top of the base 6. A display screen 7 is installed on the top cover 1. The top cover 1 and the wiring cover 2 are both fixed to the side wall of the base 6 by screws, making the housing detachable and facilitating the installation and maintenance of electrical components inside the housing.

[0028] The base 6 has a slot for mounting the interface board 4 on one side. Air inlet covers 8 are installed on both sides of the base 6 and the interface board 4, and the air inlet covers 8 are located at the opposite end of the base 6 and the interface board 4. The air inlet covers 8 improve the air circulation inside the shell and facilitate faster heat dissipation inside the shell. The interface board 4 is also equipped with a power switch 3, which is convenient for starting or stopping the inverter.

[0029] The connection mechanism includes a mounting plate 51, which is screwed onto the interface plate 4. The interface plate 4 has through holes for mounting the interface plate 4. The mounting plate 51 has multiple clearance holes 55, which are used to avoid other electrical components on the WiFi circuit board 52 that need to sense the external environment, thereby improving the accuracy of monitoring the external environment. The detachable design of the mounting plate 51 and the interface plate 4 facilitates the installation and removal of the WiFi module 5.

[0030] The WiFi module 5 includes a WiFi circuit board 52, on which a WiFi antenna 53 is fixed. The interface board 4 has a through hole for the receiving end of the WiFi antenna 53 to pass through, and a rubber sleeve 54 is embedded in the through hole. The rubber sleeve 54 is fitted onto the receiving end of the WiFi antenna 53, and the rubber sleeve 54 provides a certain buffering force for the WiFi antenna 53. When subjected to external impact, the buffering property of the rubber sleeve 54 provides a certain protection effect for the WiFi antenna 53, thereby improving the service life of the WiFi antenna 53.

[0031] The WiFi circuit board 52 is fixed with a filter capacitor 59 for isolating interference signals. The filter capacitor 59 is located on one side of the WiFi antenna 53. The filter capacitor 59 filters the external interference signals transmitted by the WiFi antenna 53, reduces the impact of external interference signals on the function of the WiFi antenna 53, and improves the communication stability of the WiFi antenna 53.

[0032] The WiFi circuit board 52 is also fixed with a network cable interface 56. The network cable interface 56 is offset from the mounting plate 51. The interface plate 4 has a connection hole for connecting the network cable interface 56. The network cable interface 56 facilitates the connection of the network cable through the connection hole to the network cable interface 56, so that the WiFi antenna 53 also has a wired transmission function, thereby improving the applicability of the WiFi module.

[0033] The WiFi circuit board 52 is also equipped with a plurality of connectors 58, which are installed at the edge of the WiFi circuit board 52. The connectors 58 have different connection pins. By setting the connectors 58 with different pins, it is easy to connect the WiFi antenna 53 to other modules of the inverter.

[0034] Multiple buffers 57 are provided and fixed at different positions on the WiFi circuit board 52. One end of each buffer 57 abuts against the inner wall of the interface board 4. The multiple buffers 57 provide a certain buffer protection for the WiFi module 5, reducing the damage to the WiFi module 5 caused by external impacts and improving the service life of the WiFi module 5 to a certain extent.

[0035] The buffer 57 includes a support column 571 fixed on the WiFi circuit board 52. One end of the support column 571 is fixed with a support plate, and one side of the support plate is fixed with a rubber sheet 572. The rubber sheet 572 abuts against the inner wall of the interface board 4. The cooperation between the support column 571 and the support plate increases the clamping force between the WiFi circuit board 52 and the interface board 4, so that the WiFi circuit board 52 can be installed stably. At the same time, the rubber sheet 572 on the support plate provides a certain buffer space for the WiFi circuit board 52, which can provide a certain buffer protection for the WiFi circuit board 52 when the interface board 4 is impacted by external force.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A WiFi-enabled inverter structure comprising a housing, characterized by: One side of the shell is fixed with an interface plate (4), the inside of the shell is provided with a WiFi module (5) with interference signal isolation function, the WiFi module (5) is detachably connected with the interface plate (4) through a connecting mechanism, a buffer (57) for buffering protection of the WiFi module (5) is arranged between the connecting mechanism and the WiFi module (5), and a wiring cover (2) is arranged above the WiFi module (5).

2. The inverter structure with built-in WiFi function according to claim 1, characterized in that: The shell comprises a base (6) and an upper cover (1), the upper cover (1) and the wiring cover (2) are side by side and cover above the base (6), and a display screen (7) is installed on the upper cover (1).

3. The inverter structure with built-in WiFi function according to claim 2, characterized in that: A slot for installing the interface plate (4) is formed in one side of the base (6), air inlet covers (8) are installed on both sides of the base (6) adjacent to the interface plate (4), and the air inlet covers (8) are located at the opposite end of the base (6) and the interface plate (4).

4. The inverter structure with built-in WiFi function according to claim 3, characterized in that: The connecting mechanism comprises a mounting plate (51), the mounting plate (51) is embedded on the interface plate (4) through screws, and a through hole for embedding the interface plate (4) is formed on the interface plate (4), and a plurality of avoiding holes (55) are formed on the mounting plate (51).

5. The inverter structure with built-in WiFi function according to claim 4, characterized in that: The WiFi module (5) comprises a WiFi circuit board (52), the WiFi circuit board (52) is fixed with a WiFi antenna (53), a through hole for the receiving end of the WiFi antenna (53) to pass through is formed on the interface plate (4), and a rubber sleeve (54) is embedded in the through hole and sleeved on the receiving end of the WiFi antenna (53).

6. The inverter structure with built-in WiFi function according to claim 5, characterized in that: The WiFi circuit board (52) is fixed with a filter capacitor (59) for isolating interference signals, and the filter capacitor (59) is located on one side of the WiFi antenna (53).

7. The inverter structure with built-in WiFi functionality of claim 6, wherein: The WiFi circuit board (52) is also fixed with a network interface (56), the network interface (56) is arranged in a staggered manner with the mounting plate (51), and a connecting hole for connecting the network interface (56) is formed on the interface plate (4).

8. The inverter structure with built-in WiFi function according to claim 7, characterized in that: The WiFi circuit board (52) is also installed with a plurality of connectors (58), the plurality of connectors (58) are installed at the edge position of the WiFi circuit board (52), and the connecting pins on the plurality of connectors (58) are not the same.

9. The inverter structure with built-in WiFi functionality of claim 1, wherein: The buffer (57) is provided with a plurality of buffer (57), the plurality of buffer (57) is fixed in different positions of the WiFi circuit board (52), and one end of the buffer (57) is in contact with the inner wall of the interface plate (4).

10. The WiFi-enabled inverter structure of claim 9, wherein: The buffer (57) comprises a support column (571) fixed on the WiFi circuit board (52), one end of the support column (571) is fixed with a support plate, one side of the support plate is fixed with a rubber sheet (572), and the rubber sheet (572) is in contact with the inner wall of the interface plate (4).

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