CN219577558U - Photovoltaic inverter, communication module and communication module shell - Google Patents

Abstract

The utility model relates to the technical field of photovoltaic inverters, and discloses a photovoltaic inverter, a communication module and a communication module casing. The communication module casing includes a main casing, a bottom casing and a casing cover. Between the main casing and the bottom casing, The main shell and the shell cover can be detachably connected, and a fixing structure for fixing the PCB board is arranged between the main shell and the bottom shell; the shell cover includes one of a first shell cover and a second shell cover, the first The shell cover is provided with a first assembly hole for assembling the cable of the wired module, and the second shell cover is provided with a second assembly hole for assembling the metal adapter of the wireless module. When it is necessary to change the type of communication module, disassemble the main shell, bottom shell and shell cover, assemble the corresponding PCB board into the fixed structure between the main shell and the bottom shell, and at the same time put the corresponding shell cover and the main The shell is assembled to realize the switching of different module types, which improves the versatility of the communication module, does not need to introduce new materials, reduces the number of molds during production, and facilitates production and improvement.

Description

A photovoltaic inverter, communication module and communication module housing

technical field

The utility model relates to the technical field of photovoltaic inverters, in particular to a photovoltaic inverter, a communication module and a communication module shell.

Background technique

Today, as energy consumption continues to grow, photovoltaic inverters, as energy conversion equipment for renewable energy power generation systems, provide a variety of perfect power conversion and access solutions, which can be applied to renewable energy grid-connected power generation systems, off-grid Village power supply system and household power supply system, and can provide the necessary electricity for life in remote areas.

As a signal receiving module, the inverter communication module usually has three types: LAN module, WIFI module and 4G module. The LAN module is a wired module, and the WiFi module and 4G module are wireless modules. According to the actual research and development and use of the inverter In some cases, it is necessary to select a different module as the communication module.

The grid-connected inverter wireless communication transmitting device in the prior art includes an integrally formed casing, a PCB disposed in the casing, a fixing block for closing the casing, fixing screws for fixing the transmitting device, and a The sealing silicone pad on the installation surface, the shell can be made of plastic as a whole, and the fixing screws can be made of stainless steel.

The above-mentioned wireless communication transmitting device uses a fixing block to fix the pcb board in the casing to realize wireless communication. However, when the types of communication modules are different, they are different from the external information transmission methods, including wired communication and wireless communication, etc. When choosing different modules as communication modules, often due to low versatility, too many materials are introduced, and product assembly is complicated. And other issues.

Utility model content

The purpose of this utility model is: to provide a communication module shell to realize the switching of different modules and improve the versatility of the communication module; this utility model also provides a communication module used for photovoltaic inverters. A photovoltaic inverter is provided.

In order to achieve the above purpose, the utility model provides a communication module housing, including a main housing, a bottom housing and a housing cover, between the main housing and the bottom housing, between the main housing and the housing cover can be detachably connected between them, and a fixing structure for fixing the PCB board is arranged between the main shell and the bottom shell;

The shell cover includes one of a first shell cover and a second shell cover, the first shell cover is provided with a first assembly hole for fixing the cable of the wired module, and the second shell cover is provided with a useful The second mounting hole of the metal adapter for fixing the wireless module.

Preferably, the detachable connection structure between the case cover and the main casing includes screws and nuts, and a plurality of screws and nuts are spaced apart from the outside of the case cover and the main casing. .

Preferably, the housing cover and the main housing are both provided with coaxial positioning holes, and the nuts are pre-installed in the positioning holes.

Preferably, the first assembly hole is an installation screw hole provided on the top of the first case cover.

Preferably, the second assembly hole is an installation through hole provided on the top of the second case cover.

Preferably, the main housing is provided with a first groove, the bottom shell is provided with a second groove, and the notch of the second groove is arranged opposite to the notch of the first groove, The PCB board is clamped between the first groove and the second groove.

Preferably, at least two groups of the first grooves and the second grooves are provided, and each group of the first grooves and each group of the second grooves are arranged at intervals.

Preferably, one of the main shell and the bottom shell is provided with a card slot on the outside, and the other is provided with a buckle engaged with the card slot on the outside, and the main shell and the bottom shell The card slot is detachably connected with the buckle.

Preferably, the bottom case has a plug-in section for inserting into the main casing, two groups of buckles are arranged symmetrically on the outside of the plug-in section, and the main casing has a plug-in section for the plug-in section. There are two sets of slots arranged symmetrically on the extension section into which the section is inserted.

The utility model also provides a communication module for a photovoltaic inverter, including a housing and a PCB board arranged in the housing, the housing is the communication module housing described in any of the above technical solutions, and also includes a A communication unit on the housing, the communication unit is signal-connected to the PCB board.

Preferably, the case cover includes a first case cover, the communication unit includes a wired module, and cables of the wired module are fitted in the first assembly holes of the first case cover.

Preferably, the case cover includes a second case cover, the communication unit includes a wireless module, and the metal adapter of the wireless module is assembled in the second assembly hole of the second case cover.

The utility model also provides a photovoltaic inverter, including the communication module for the photovoltaic inverter described in any of the above technical solutions.

Compared with the prior art, a photovoltaic inverter, a communication module, and a housing of the communication module in the embodiment of the utility model have the beneficial effect that: the space between the main housing and the bottom housing and between the main housing and the housing cover can be Disconnect the connection, and the shell cover includes one of the first shell cover and the second shell cover. When the type of communication module needs to be replaced, the main shell, the bottom shell and the shell cover can be disassembled from each other, and the corresponding PCB board can be assembled. Into the fixed structure between the main shell and the bottom shell, and at the same time assemble the corresponding shell cover with the main shell, so as to realize the switching of different module types, improve the versatility of the communication module, do not need to introduce new materials, reduce The number of molds opened during production is guaranteed, which is convenient for production and improvement.

Description of drawings

Fig. 1 is a structural schematic diagram of the assembly of the first shell cover of the communication module shell of the present invention;

Fig. 2 is a structural schematic diagram of the second shell cover assembled in the communication module shell of the present invention;

Fig. 3 is a schematic diagram of explosion after the communication module housing of Fig. 1 is assembled with a PCB;

Fig. 4 is a schematic diagram of explosion after the communication module housing of Fig. 2 is assembled with a PCB;

Fig. 5 is a schematic structural view of a first cover of the communication module case of Fig. 1;

Fig. 6 is a schematic structural diagram of a second case cover of the communication module case of Fig. 1;

Fig. 7 is a structural schematic diagram of the bottom shell of the communication module shell of the present invention;

Fig. 8 is a structural schematic diagram of the main casing of the communication module casing of the present invention;

FIG. 9 is a cross-sectional view of the main housing of the communication module housing of FIG. 8 .

In the figure, 1. Main housing, 11. First groove, 12. Extension section, 13. Card groove, 2. Bottom shell, 21. Second groove, 22. Insertion section, 23. Buckle, 3 , the first shell cover, 31, the first assembly hole, 4, the second shell cover, 41, the second assembly hole, 5, the PCB board, 6, the screw, 7, the nut, 8, the positioning hole, 9, the cable, 10. Metal adapter.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

A preferred embodiment of a communication module housing of the present utility model, as shown in Figures 1 to 9, includes a main housing 1, a bottom housing 2 and a housing cover, the main housing 1 is an integrally formed structure, and the main housing 1 There is a cavity inside, and the cavity is used to accommodate the PCB board 5 of the communication module, and the PCB board 5 is arranged in the main casing 1 and is detachable.

The bottom case 2 is arranged at the bottom of the main case 1 , and the case cover is arranged on the top of the main case 1 , and the bottom case 2 , the main case 1 and the case cover are connected to protect the PCB board 5 in the cavity. Both the main casing 1 and the bottom casing 2 and between the main casing 1 and the box cover can be detachably connected, and a fixing structure for fixing the PCB board 5 is arranged between the main casing 1 and the bottom casing 2 . Since the main shell 1, the bottom shell 2 and the shell cover can be disassembled from each other, when it is necessary to replace different types of PCB boards 5, the bottom shell 2 and the shell cover can be disassembled from the main shell 1, and the corresponding PCB The board 5 is assembled into the main casing 1 from the bottom of the main casing 1 , and then the bottom casing 2 is connected to the main casing 1 .

The shell cover includes one of the first shell cover 3 and the second shell cover 4, the first shell cover 3 is provided with a first assembly hole 31, the first assembly hole 31 is used to assemble the cable 9 of the wired module, which is convenient for wiring The cable 9 of the module is connected to the PCB board 5 inside the main housing 1 . A second assembly hole 41 is provided on the second case cover 4 , and the second assembly hole 41 is used for assembling the metal adapter 10 of the wireless module, so as to facilitate fixing the wireless module on the second case cover 4 .

The wired module and the wireless module have different assembly structures, corresponding to different types of PCB boards 5 , and different connection forms with the PCB board 5 , so they need to be assembled with different types of shell covers. The shell cover includes one of the first shell cover 3 and the second shell cover 4. When changing the type of the communication module, according to whether the module is a wired module or a wireless module, select the corresponding first shell cover 3 or the second shell cover 4 , and choose to correspond to the PCB board 5 in the main housing 1 to realize the replacement of the communication module type. Both the WiFi module and the 4G module are one of the wireless modules, and both can be assembled with the second cover 4. By replacing the first cover 3 and the second cover 4, it is compatible with three different types of The communication module realizes the three-in-one communication module.

When the communication module shell needs to be replaced, the main shell 1, the bottom shell 2 and the shell cover can be disassembled, and the corresponding PCB board 5 can be assembled into the fixing between the main shell 1 and the bottom shell 2. In the structure, the corresponding shell cover is assembled with the main shell 1 at the same time, so as to realize the switching of different module types, improve the versatility of the communication module, do not need to introduce new materials, reduce the number of mold openings during production, and facilitate production and improvements.

Preferably, the detachable connection structure between the case cover and the main case 1 includes screws 6 and nuts 7 , and a plurality of screws 6 and nuts 7 are arranged at intervals outside the case cover and the main case 1 .

The screw 6 and the nut 7 are used as a standard connection structure, which simplifies the connection mode between the shell cover and the main shell 1, and is also convenient for mold opening and fabrication.

Preferably, the housing cover and the main housing 1 are provided with coaxial positioning holes 8 , and the nuts 7 are pre-installed in the positioning holes 8 .

Both the shell cover and the main shell 1 are provided with positioning holes 8, and the fixing nuts 7 can be pre-assembled by using the positioning holes 8. The nuts 7 can be pre-assembled when the shell cover and the main shell 1 are formed, and are not required for manual assembly. Further screwing the nut 7 simplifies the assembly process and facilitates screwing the screw 6 to connect the shell cover and the main shell 1 . In this embodiment, the specifications of the positioning holes 8 on the case cover and the main housing 1 are the same.

Preferably, the first assembly hole 31 is an installation screw hole provided on the top of the first case cover 3 .

The cable 9 of the wired module is threadedly assembled with the first shell cover 3 through the mounting screw hole, and a threaded connector is arranged on the cable 9 of the existing LAN module, and the mounting screw hole can be threadedly connected with the existing LAN module. Connection structure of existing wired modules.

Preferably, the second assembly hole 41 is an installation through hole provided on the top of the second case cover 4 .

When the wireless module is assembled with the second case cover 4, it is fixed with the second case cover 4 through the metal adapter 10, and the installation through hole provides the installation station for the metal adapter 10, which is suitable for the connection of the existing WiFi module and 4G module structure.

Preferably, the main housing 1 is provided with a first groove 11, the bottom case 2 is provided with a second groove 21, the notch of the second groove 21 is arranged opposite to the notch of the first groove 11, and the PCB board 5 is clamped between the first groove 11 and the second groove 21.

The PCB board 5 is clamped between the first groove 11 on the main housing 1 and the second groove 21 on the bottom case 2, and the first groove 11 and the second groove 21 cooperate to form the PCB board 5 fixed structure. The first groove 11 and the second groove 21 fix the PCB board 5 in the form of clamping, and the top of the PCB board 5 is assembled into the main housing 1 from the bottom of the main housing 1 and embedded in the first groove 11 After assembling the bottom case 2, the bottom of the PCB 5 is fixed through the second groove 21, which simplifies the way of assembling and fixing the PCB 5. In other embodiments, threaded holes may also be provided between the main shell 1 and the bottom shell 2 , through holes are opened on the PCB 5 , and the PCB 5 is fixed by screws 6 .

Preferably, at least two groups of first grooves 11 and second grooves 21 are provided, and each group of first grooves 11 and each group of second grooves 21 are arranged at intervals.

At least two sets of first grooves 11 and at least two sets of second grooves 21 can fix the PCB board 5 at multiple points to keep the PCB board 5 stable and prevent the PCB board 5 from moving in the main casing 1 .

Preferably, one of the main shell 1 and the bottom shell 2 is provided with a card slot 13 on the outside, and the other is provided with a buckle 23 that engages with the card slot 13, and the main shell 1 and the bottom shell 2 pass through the card slot. 13 is detachably connected with buckle 23.

The buckle 23 and the card slot 13 are commonly used connection structures, which simplifies the connection method between the main shell 1 and the bottom shell 2, and the main shell 1 and the bottom shell 2 can be disassembled by pressing, which is convenient for replacing the PCB board 5.

Preferably, the bottom shell 2 has an insertion section 22 for inserting into the main housing 1, and two groups of buckles 23 are arranged symmetrically on the outside of the pre-insertion section 22, and the main housing 1 has an extension section for inserting the insertion section 22. 12. Two groups of card slots 13 are arranged symmetrically on the extension section 12 .

The plug-in section 22 can be inserted into the extension section 12 of the main housing 1 to hide the buckle 23 structure on the bottom housing 2 and beautify the appearance of the communication module.

The utility model also provides a communication module for a photovoltaic inverter, which includes a casing and a PCB board arranged in the casing, and also includes a communication unit arranged on the casing, the communication unit is connected to the PCB board signal, and the structure of the casing The structure of the housing of the communication module is the same as that in any of the above-mentioned embodiments, and will not be repeated here.

Preferably, the case cover includes a first case cover, the communication unit includes a wired module, and the wired module is assembled in the first assembly hole of the first case cover.

Preferably, the case cover includes a second case cover, the communication unit includes a wireless module, and the wireless module is assembled in the second assembly hole of the second case cover.

The communication module has two forms: wired and wireless. Correspondingly, the types of the corresponding PCB boards 5 are different. When the communication unit is a wired module, the shell cover is selected from the first shell cover 3, and the cable 9 of the wired module is assembled in the first assembly. In the hole 31, the type of the PCB board 5 corresponds to the wired module at this time; when the communication unit is a wireless module, the shell cover is selected from the second shell cover 4, and the metal adapter 10 of the wireless module is assembled in the second assembly hole 41. The type of the PCB board 5 corresponds to the wireless module.

The utility model also provides a preferred embodiment of a photovoltaic inverter, including the communication module for the photovoltaic inverter in any of the above embodiments, and its specific structure will not be repeated.

To sum up, the embodiment of the present utility model provides a photovoltaic inverter, a communication module and a housing of the communication module, the main housing and the bottom housing, and the main housing and the housing cover can be detachably connected, and the housing cover includes One of the first shell cover and the second shell cover, when the type of communication module needs to be replaced, the main shell, bottom shell and shell cover can be disassembled from each other, and the corresponding PCB board can be assembled into the main shell and the bottom shell In the fixed structure between them, the corresponding shell cover and the main shell are assembled at the same time, so as to realize the switching of different module types, improve the versatility of the communication module, do not need to introduce new materials, and reduce the number of mold openings during production , to facilitate production and improvement.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (12)

1. The communication module shell is characterized by comprising a main shell, a bottom shell and a shell cover, wherein the main shell is detachably connected with the bottom shell, and the main shell is detachably connected with the shell cover;

the casing cover comprises a first casing cover and a second casing cover, wherein a first assembly hole for assembling a cable of the wired module is formed in the first casing cover, and a second assembly hole for assembling a metal adapter of the wireless module is formed in the second casing cover.

2. The communication module housing of claim 1, wherein the removable connection between the cover and the main housing comprises a screw and a nut, the screw and the nut being spaced apart from the outside of the cover and the main housing.

3. The communication module housing according to claim 2, wherein the housing cover and the main housing are provided with coaxially arranged positioning holes, and the nut is preassembled in the positioning holes.

4. A communication module housing according to any one of claims 1 to 3, wherein the first fitting hole is a mounting screw hole communication module housing provided at the top of the first housing cover, and the second fitting hole is a mounting through hole provided at the top of the second housing cover.

5. A communication module housing according to any one of claims 1-3, wherein a first groove is provided on the main housing, a second groove is provided on the bottom housing, a notch of the second groove is arranged opposite to a notch of the first groove, and the PCB board is clamped between the first groove and the second groove.

6. The communication module housing of claim 5, wherein the first and second grooves are each provided with at least two sets, each set of the first and second grooves being spaced apart.

7. A communication module housing according to any one of claims 1-3, wherein one of the main housing and the bottom shell is provided with a clamping groove on the outer side, and a buckle clamped with the clamping groove is provided on the outer side, and the main housing and the bottom shell are detachably connected with the buckle through the clamping groove.

8. The communication module housing according to claim 7, wherein the bottom case has a plugging section for inserting the main housing, the two sets of the buckles are symmetrically arranged on the outer side of the plugging section, the main housing has an extension section for inserting the plugging section, and the two sets of the clamping grooves are symmetrically arranged on the extension section.

9. A communication module for a photovoltaic inverter, comprising a housing and a PCB board arranged in the housing, wherein the housing is a communication module housing according to any one of claims 1-8, and further comprising a communication unit arranged on the housing, the communication unit being in signal connection with the PCB board.

10. The communication module for a photovoltaic inverter of claim 9, wherein the housing cover comprises a first housing cover, and the communication unit comprises a wired module, and a cable of the wired module is fitted into a first fitting hole of the first housing cover.

11. The communication module for a photovoltaic inverter of claim 9, wherein the housing cover comprises a second housing cover, the communication unit comprises a wireless module, and a metal adapter of the wireless module is assembled in a second assembly hole of the second housing cover.

12. A photovoltaic inverter comprising a communication module for a photovoltaic inverter according to any one of claims 9-11.