Communication module and photovoltaic inverter

Abstract

The utility model discloses a communication module and a photovoltaic inverter, and belongs to the technical field of communication modules, the communication module comprises a circuit board and a shell, the shell comprises a first sub-shell and a second sub-shell, and the first sub-shell and the second sub-shell are connected to form an accommodating cavity; one of the first sub-shell and the second sub-shell is provided with a fixing part, and the fixing part is located in the containing cavity and used for fixing the edge of one side of the circuit board. According to the communication module provided by the utility model, under the condition that the communication module is wired or overhauled, the first sub-shell and the second sub-shell are detached, and the circuit board is fixed on the fixing part, namely, the circuit board is fixed on one of the first sub-shell and the second sub-shell; after the communication module is wired or overhauled, the communication module can be recovered by assembling the first sub-shell and the second sub-shell; after the shell is opened, the circuit board is still fixed by the fixing part, so that the circuit board is still fixed on the first sub-shell or the second sub-shell under the condition that the circuit board is exposed, and the communication module can be conveniently assembled and recovered after being disassembled.

Description

Technical Field

[0001] This utility model relates to the technical field of communication equipment, and in particular to a communication module and a photovoltaic inverter. Background Technology

[0002] Data communication between photovoltaic inverters and external devices (such as computers, monitoring systems, cloud platforms, etc.) can be achieved through communication modules. When wiring or repairing the communication module, the casing needs to be opened to access the circuit board inside. However, after removing the casing, the circuit board detaches from the casing. Because users are unfamiliar with how the circuit board is secured, it is difficult to reinstall the circuit board back into the casing after wiring or repair, making it difficult to reassemble the communication module after these procedures. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a communication module that facilitates reassembly and restoration after disassembly.

[0004] This invention also provides a photovoltaic inverter that uses the above-mentioned communication module.

[0005] The first aspect of this utility model provides a communication module, including:

[0006] Circuit board;

[0007] The housing has a receiving cavity for accommodating the circuit board; the housing includes a first sub-shell and a second sub-shell, the first sub-shell and the second sub-shell being connected to form the receiving cavity; one of the first sub-shell and the second sub-shell is provided with a fixing part, the fixing part being located inside the receiving cavity and used to fix one edge of the circuit board.

[0008] The communication module according to the embodiments of this utility model has at least the following beneficial effects:

[0009] When wiring or repairing the communication module, the first and second shells are separated, and the fixing part is located in either the first or second shell. The circuit board is fixed to the fixing part, that is, the circuit board is fixed to one of the first and second shells. After wiring or repairing the communication module, the communication module can be restored by assembling the first and second shells. After opening the shell, the fixing part still fixes the circuit board, so that the circuit board is still fixed to the first or second shell even when exposed, which facilitates the reassembly of the communication module after disassembly.

[0010] According to the communication module of this utility model embodiment, the fixing part has a slot, and one edge of the circuit board is inserted into the slot.

[0011] According to the communication module of this utility model embodiment, the fixing part includes a first baffle and a second baffle arranged side by side, the first baffle and the second baffle protruding from the baffle on the inner wall of the receiving cavity, and the slot is formed between the first baffle and the second baffle.

[0012] According to the communication module of this utility model embodiment, two fixing parts are provided, and the two fixing parts are arranged opposite to each other along the width direction of the communication module.

[0013] According to the communication module of this utility model embodiment, the circuit board is provided with an interface portion, the second housing has an opening communicating with the receiving cavity, the opening being for the first end of the interface portion to pass through; the inner side of the second housing has a first buckle, the first buckle being used to fasten the interface portion.

[0014] According to the communication module of this utility model embodiment, along the thickness direction of the communication module, the first buckle is located on the first side of the opening, and the fixing part is located on the second side of the opening; the first side and the second side are opposite to each other.

[0015] According to the communication module of this utility model embodiment, one end of the first buckle is connected to the edge of the opening, and the other end extends along the length direction of the communication module; the first buckle is provided with a protrusion, and the protrusion has a stop surface on the side facing the opening, the stop surface being used to abut against the second end of the interface portion.

[0016] According to the communication module of this utility model embodiment, the first housing has a receiving groove for accommodating the circuit board; the second housing includes a cover body, which covers the opening of the receiving groove, and the cover body and the receiving groove define the receiving cavity; the fixing part is disposed on the inner side of the second housing.

[0017] According to the communication module of this utility model embodiment, the second shell further includes a connecting sidewall surrounding the periphery of the cover body, the connecting sidewall being embedded in the receiving groove, the slot including a first slot and a second slot, the first slot being disposed on the cover body, and the second slot being disposed on the connecting sidewall.

[0018] According to the communication module of this utility model embodiment, a protrusion is provided on one side of the connecting sidewall, and a corresponding recess is provided on the inner wall of the receiving groove. The protrusion and the recess cooperate to position the first shell and the second shell.

[0019] A second aspect of this utility model provides a photovoltaic inverter, including an inverter body and the communication module described in the first aspect embodiment above, wherein the communication module is installed on the inverter body.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a communication module according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the outer casing of a communication module according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of a communication module according to another embodiment of the present invention.

[0024] Figure 4 yes Figure 3 Cross-sectional view of AA in the middle;

[0025] Figure 5 This is an exploded view of a communication module according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the overall structure of the circuit board of a communication module according to an embodiment of the present invention;

[0027] Figure 7 This is an exploded view of the circuit board of a communication module according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the overall structure of the second shell of the communication module according to an embodiment of the present invention;

[0029] Figure 9 yes Figure 4 Enlarged view of point B in the middle;

[0030] Figure 10 This is a schematic diagram of the overall structure of the first shell of the communication module according to an embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram of the overall structure of the second shell of the communication module according to an embodiment of the present invention from another perspective.

[0032] Figure label:

[0033] Circuit board 100; main circuit board 110; network port 111; secondary circuit board 120; interface 121; connector 130; support 131; connecting pin 132; light shield 140; recess 141; indicator light 150; button 160;

[0034] Outer shell 200; Receiving cavity 210; First sub-shell 220; Wire hole 221; Receiving groove 222; Recess 222a; Engaging groove 223; Soft rubber sleeve 224; Second sub-shell 230; Fixing part 231; Slot 232a; First slot 232b; First baffle 232c; Second baffle 232d; Second slot 232c; First buckle 233; Protrusion 234; Stop surface 234a; Guide surface 234b; Opening 235; Cover 240; Connecting side wall 250; Connecting groove 251; Limiting block 251a; Second buckle 252; First section 253; Second section 254; Protrusion 255;

[0035] First locking nut 310; Second locking nut 320; Washer 330; First sealing ring 340; Second sealing ring 350;

[0036] 400V network cable;

[0037] The height H1 of the support section. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] In the description of this utility model, it should be understood that the terms "axial", "radial", "circumferential", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0041] In the description of this utility model, it should be noted that terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0042] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of this utility model, not all embodiments.

[0043] Data communication between photovoltaic inverters and external devices (such as computers, monitoring systems, cloud platforms, etc.) can be achieved through communication modules. When wiring or repairing the communication module, the casing needs to be opened to access the circuit board inside. Typically, the circuit board is placed directly inside the casing, with no connection between the board and the casing, or it is secured to the casing by a wiring harness. After removing the casing, the circuit board of the communication module becomes detached. Because users are unfamiliar with how the circuit board is secured, it is difficult to reinstall the circuit board back into the casing after wiring or repair, making it difficult to reassemble the communication module after these procedures.

[0044] Reference Figure 1 and Figure 4 As shown, the communication module provided in the embodiment of this utility model includes a circuit board 100 and a housing 200. The housing 200 has a receiving cavity 210 for receiving the circuit board 100. The housing 200 includes a first sub-shell 220 and a second sub-shell 230, which are connected to form the receiving cavity 210. One of the first sub-shell 220 and the second sub-shell 230 is provided with a fixing part 231, which is located inside the receiving cavity 210 and is used to fix one edge of the circuit board 100.

[0045] When wiring or repairing the communication module, the first housing 220 and the second housing 230 are detached. The fixing part 231 is located in either the first housing 220 or the second housing 230, and the circuit board 100 is fixed to the fixing part 231, that is, the circuit board 100 is fixed to one of the first housing 220 and the second housing 230. After wiring or repairing the communication module, the communication module can be restored by assembling the first housing 220 and the second housing 230. After opening the outer casing 200, the fixing part 231 still fixes the circuit board 100, so that the circuit board 100 is still fixed to the first housing 220 or the second housing 230 when exposed, which facilitates the reassembly of the communication module after disassembly.

[0046] The fixing part 231 can be provided in the first sub-shell 220 or the second sub-shell 230. That is, the fixing part 231 is connected to one of the first sub-shell 220 and the second sub-shell 230. This article takes the fixing part 231 being connected to the second sub-shell 230 as an example.

[0047] Since the fixing part 231 and the first shell 220 are not connected, the connection between the first shell 220 and the second shell 230 can be released, allowing the first shell 220 and the second shell 230 to be separated. This opens the outer casing 200 to access the exposed circuit board 100. By assembling the first shell 220 and the second shell 230, the communication module can be assembled, simplifying the disassembly and assembly of the communication module. If the circuit board 100 is connected to the first shell 220 and the second shell 230 respectively, it will cause inconvenience in disassembling or assembling the outer casing 200.

[0048] The circuit board 100 is fixed to the second housing 230 by the fixing part 231. By separating the first housing 220 and the second housing 230, the circuit board 100 is exposed. At this point, the circuit board 100 fixed to the second housing 230 can be operated directly, or it can be operated after being removed from the second housing 230. This invention does not impose any particular limitation on this method. The fixing part 231 fixes the circuit board 100, reducing the probability that the circuit board 100 will fall due to loss of support when the first housing 220 and the second housing 230 are separated, thus reducing unnecessary losses.

[0049] In addition, the fixing part 231 has a positioning effect, which helps to quickly determine the installation position of the circuit board 100 and reduce the probability of assembly errors. Fixing the circuit board 100 to the second housing 230 by the fixing part 231 helps to keep the relative position between the second housing 230 and the circuit board 100 unchanged, so that the position of the circuit board 100 in the receiving cavity 210 remains unchanged after assembly, thereby minimizing the probability of assembly errors.

[0050] Please refer to Figures 4 to 5In some embodiments, the first housing 220 has a wire hole 221 communicating with the receiving cavity 210, so that the network cable 400 passes through the wire hole 221 and connects to the network port 111; the second housing 230 has an opening 235 communicating with the receiving cavity 210, the opening 235 being for the first end of the interface portion 121 of the circuit board 100 to pass through; the opening 235 is located at one end of the length direction of the housing 200, making it convenient for the user to hold the communication module and perform plug-and-play operations on the interface portion 121; the wire hole 221 is located at the other end of the length direction of the housing 200, so that the network cable 400 can be arranged in the receiving cavity 210 along the length direction of the housing 200, which is beneficial for the wiring inside the communication module. The housing 200 is generally flat and elongated. The communication module may include a first locking nut 310 and a second locking nut 320. The first locking nut 310 is sleeved on the outside of the opening 235 to improve the reliability of the connection between the interface 121 and the opening 235. A washer 330 may be added to the inside of the first locking nut 310 to increase friction. The second locking nut 320 is sleeved on the outside of the wire hole 221 to improve the reliability of the connection between the network cable 400 and the wire hole 221. To improve the waterproof effect, a first sealing ring 340 may be provided at the wire hole 221.

[0051] Reference Figure 6 and Figure 7 As shown, the circuit board 100 of the communication module provided in the first aspect embodiment of this utility model includes a main circuit board 110, a secondary circuit board 120, and a support member 130. A network port 111 is provided on one side of the main circuit board 110. The support member 130 is connected to the main circuit board 110, and the support member 130 and the network port 111 are located on the same side of the main circuit board 110. The secondary circuit board 120 is provided with an interface 121. The secondary circuit board 120 is connected to the side of the support member 130 away from the main circuit board 110. In the thickness direction of the main circuit board 110, the height difference between the axis of the interface 121 and the axis of the network port 111 is less than or equal to the height of the network port 111.

[0052] The support 130 and the network port 111 are located on the same side of the main circuit board 110, and the sub-circuit board 120 is connected to the side of the support 130 away from the main circuit board 110. The support 130 serves to raise the interface 121 located on the sub-circuit board 120, so as to reduce the height difference between the interface 121 and the network port 111, which is beneficial to the symmetry of the opening position of the communication module's housing. The main circuit board 110 supports the network port 111, and the sub-circuit board 120 supports the interface 121. During assembly, the main circuit board 110 and the sub-circuit board 120 are directly connected through the support 130, so that the height of the axis of the interface 121 and the axis of the network port 111 is less than or equal to half the height of the network port 111, simplifying the assembly process.

[0053] It should be noted that, in the thickness direction of the main circuit board 110, the height difference between the axis of the interface portion 121 and the axis of the network port portion 111 is less than or equal to half the height of the network port portion 111. In other words, the height difference between the axis of the interface portion 121 and the axis of the network port portion 111 is within a certain range, so as to limit the distance between the axis of the interface portion 121 and the axis of the network port portion 111.

[0054] Reference Figure 6 and Figure 7 As shown, by limiting the height difference between the axis of the interface section 121 and the axis of the network port section 111 in the thickness direction of the main circuit board 110, the openings of the outer shell of the communication module are symmetrically arranged, and users can intuitively distinguish the differences between different ports. When faced with multiple ports such as the interface section 121 and the network port section 111, users can more easily identify the ports.

[0055] Reference Figure 6 and Figure 7 As shown, in some embodiments, along the thickness direction of the main circuit board 110, the frontal projection surface of the main circuit board 110 and the frontal projection surface of the sub-circuit board 120 at least partially overlap; the padding member 130 includes a support portion 131, which is located between the main circuit board 110 and the sub-circuit board 120, and connects the main circuit board 110 and the sub-circuit board 120 through the support portion 131. The support portion 131 can limit the distance between the main circuit board 110 and the sub-circuit board 120 to raise the height of the mesh port portion 111, thereby reducing the height difference between the mesh port portion 111 and the interface portion 121.

[0056] Along the thickness direction of the main circuit board 110, the frontal projection surface of the main circuit board 110 and the frontal projection surface of the sub-circuit board 120 at least partially overlap, which facilitates the placement of the main circuit board 110 and the sub-circuit board 120 on opposite sides of the support member 130, so as to maximize the contact area between the support member 130 and the main circuit board 110 and the sub-circuit board 120 while keeping the volume of the support member 130 unchanged, thereby improving the strength of the connection.

[0057] Reference Figure 6 and Figure 7As shown, in some embodiments, the height H1 of the support portion 131 in the thickness direction of the main circuit board 110 is greater than or equal to the distance between the center position of the mesh port portion 111 and the main circuit board 110, such that, supported by the support portion 131, the height difference between the axis of the interface portion 121 and the axis of the mesh port portion 111 is less than or equal to half the height of the mesh port portion 111. Since the thickness of the interface portion 121 itself is very small, if the height of the support portion 131 in the thickness direction of the main circuit board 110 is less than the distance between the center position of the mesh port portion 111 and the main circuit board 110, the height of the interface portion 121 may be insufficient, resulting in a height difference between the interface portion 121 and the mesh port portion 111 on the main circuit board 110.

[0058] Reference Figure 6 and Figure 7 As shown, in some embodiments, the support 130 further includes a connecting pin 132. One end of the connecting pin 132 is electrically connected to the main circuit board 110, and the other end passes through the support portion 131 and is electrically connected to the sub-circuit board 120. The connecting pin 132 enables an electrical connection between the main circuit board 110 and the sub-circuit board 120. During connection, simply inserting the connecting pin 132 into the corresponding hole on the main circuit board 110 or the sub-circuit board 120 facilitates disassembly and assembly. Connecting the main circuit board 110 or the sub-circuit board 120 via the connecting pin 132 achieves both electrical and physical connections, ensuring the stability of the connection between the main circuit board 110 and the sub-circuit board 120. Furthermore, it enables an electrical connection between the main circuit board 110 and the sub-circuit board 120 without soldering or wiring, reducing assembly steps and improving overall assembly efficiency. The support 130 can be a board-to-board connector.

[0059] Reference Figure 6 and Figure 7As shown, in some embodiments, the insertion and removal direction of the interface section 121 is the same as that of the network port section 111. When inserting or removing the communication module, the user can operate more intuitively and conveniently, reduce the risk of incorrect insertion, and improve the portability of operation. The above configuration results in a higher alignment between the network port 111 and the interface 121, which is more conducive to placing the network port 111 and the interface 121 on the center line of the communication module, thereby ensuring the structural stability of the communication module. If the interface 121 is located on the center line of the communication module, the overall force on the communication module will be more even when the interface 121 is plugged in or unplugged, and the overall shock resistance and stability of the communication module can be guaranteed. If the network port 111 is located on the center line of the communication module, the network cable 400 plugged into the network port 111 will be set along the center line of the communication module, which is more conducive to the cable layout. The interface 121 and the network port 111 are located on the center line of the communication module, which makes it easier for users to determine the plugging and unplugging direction and reduces damage or poor contact caused by incorrect plugging and unplugging direction. Furthermore, the center line of the network port 111 and the center line of the interface 121 are on the same straight line.

[0060] Reference Figure 6 and Figure 7 As shown, in some embodiments, the interface portion 121 is offset from the main circuit board 110 along the thickness direction of the main circuit board 110. This makes it easier for the interface portion 121 to extend out of the outer shell 200 of the communication module for insertion while minimizing the material of the sub-circuit board 120. It also increases the distance between the network port portion 111 and the interface portion 121 in the length direction of the main circuit board 110, so that the network port portion 111 and the interface portion 121 are set at opposite ends of the circuit board 100. The length of the main circuit board 110 is greater than the length of the sub-circuit board 120 in the length direction of the main circuit board 110, and the main circuit board 110 can carry the sub-circuit board 120 and other components (such as chips). Generally, at least a portion of the interface portion 121 extends outside the housing 200 through the opening 235 of the housing 200. The main circuit board 110 is located inside the housing 200. Since the sub-circuit board 120 is stacked on one side of the main circuit board 110, the interface portion 121 is at least partially offset from the main circuit board 110. This can maximize the size of the portion of the interface portion 121 extending out of the housing 200, which is more conducive to the insertion of the interface portion 121. The interface portion 121 can be completely offset from the main circuit board 110, or it can be partially offset from the main circuit board 110. This embodiment of the present invention does not make any special limitation on this.

[0061] In related technologies, communication modules use a method where the interface section is directly fixed to the outer casing by potting to reduce the height difference between the interface section and the network port section. The interface section is connected to the circuit board wires via a wire harness, and the network port section is then soldered to one side of the circuit board, aligning the network port section and the interface section. One end of the wire harness is soldered to the interface section, and the other end is soldered to the circuit board. However, this wire harness connection method is unreliable and prone to poor contact. Furthermore, the wire harness is easily broken during wiring of the network port section or maintenance of the circuit board.

[0062] Generally, the interface section 121 is a USB interface, and the network port section 111 is an Ethernet port. The interface section 121 is connected to the edge of the sub-circuit board 120 and protrudes from the circuit board 100, making it easier to align the interface section 121 with the photovoltaic inverter's connector. This facilitates direct connection of the interface section 121 to the photovoltaic inverter and avoids connection inconveniences caused by the interface section 121 being located in the middle of the sub-circuit board 120. Furthermore, placing the interface section 121 at the edge of the sub-circuit board 120 reduces the overlap area between the interface section 121 and the circuit board 100 in the thickness direction of the communication module, which is more conducive to heat dissipation.

[0063] Reference Figure 6 and Figure 7 As shown, in some embodiments, the interface portion 121 is connected to the edge of the sub-circuit board 120, and the sub-circuit board 120 is located in the extension direction of the axis of the interface portion 121, so that the interface portion 121 at least partially protrudes from the main circuit board 110, facilitating the insertion of the interface portion 121 into the photovoltaic inverter. The interface portion 121 is connected to the circuit board 100 by soldering. Soldering directly fixes the interface portion 121 to the circuit board 100, avoiding problems such as poor contact or loosening that may occur in wire harness connections. Soldered connections are also more robust, providing more stable signal and power transmission and reducing faults caused by poor wiring. Wiring connections may be affected by frequent plugging and unplugging, pulling, etc., leading to wear or poor contact at the connection point. Soldering is less prone to such problems and offers high reliability. Soldering also reduces the complexity of wiring and simplifies the manufacturing process.

[0064] Reference Figure 6 and Figure 7As shown, in some embodiments, the circuit board 100 further includes a light-blocking element 140 and a plurality of indicator lights 150. The indicator lights 150 are arranged on the side of the main circuit board 110 facing away from the network port 111. The light-blocking element 140 surrounds the indicator lights 150 to prevent cross-contamination of light among the multiple indicator lights 150. The indicator lights 150 are used to display the status of the circuit board 100. For example, the indicator lights 150 can indicate whether the circuit board 100 is in an on state, a working state, or a networked state. The multiple indicator lights 150 can indicate different states of the circuit board 100. The light-blocking element 140 prevents cross-contamination between the multiple indicator lights 150, preventing users from being unable to identify different indicator lights 150 due to cross-contamination. The housing 200 can be provided with light-transmitting holes, through which the indicator lights 150 can pass. Glue can be applied to the light-transmitting holes to improve the waterproof effect.

[0065] Reference Figure 6 and Figure 7 As shown, in some embodiments, the light-blocking member 140 has multiple grooves 141, with portions of the indicator lamps 150 correspondingly disposed within the grooves 141. The sidewalls of the grooves 141 can block part of the light from the indicator lamps 150, effectively preventing light leakage. Furthermore, the grooves 141 provide positioning and fixing for the indicator lamps 150, facilitating assembly. Generally, the light-blocking member 140 is made of foam. In other embodiments, the light-blocking member 140 can also be a baffle disposed between different indicator lamps 150.

[0066] Reference Figure 6 and Figure 7 As shown, in some embodiments, the circuit board 100 further includes a button 160, which is disposed on the side of the main circuit board 110 facing away from the network port 111. Generally, the network port 111 is disposed along the center line of the communication module, so that the main circuit board 110 is disposed close to the side wall of the housing 200. By disposing of the button 160 on the side of the main circuit board 110 facing away from the network port 111, it is easier to trigger the button 160 so as to control the communication module through the button 160. Pressing the button 160 can turn the communication module on or off. The housing 200 has a fixing hole corresponding to the button 160, and a soft rubber sleeve 224 is disposed in the fixing hole. The soft rubber sleeve 224 is fitted onto the button 160. By pressing the soft rubber sleeve 224, the button 160 can be triggered, making it convenient to operate the button 160.

[0067] Please see Figure 8 and Figure 9In some embodiments, the fixing part 231 has a slot 232a, and one edge of the circuit board 100 is inserted into the slot 232a. The circuit board 100 can be fixed without additional tools, enabling quick docking of the circuit board 100 and the second housing 230, effectively improving the assembly efficiency of the communication module and reducing assembly time. The circuit board 100 is a board body, and the sidewall of the slot 232a limits the circuit board 100, effectively fixing it and reducing its shaking during use. The width of the slot 232a is greater than or equal to the thickness of the circuit board 100, allowing the circuit board 100 to be inserted into it. Removing the circuit board 100 simply requires removing it from the slot 232a, minimizing damage to the circuit board 100 or the fixing part 231, and facilitating maintenance of the circuit board 100. Specifically, the main circuit board 110 is inserted into the slot 232a, and the interface part 121 passes through the opening 235 to ensure that the circuit board 100 as a whole can be stably placed in the receiving cavity 210.

[0068] Please see Figure 8 and Figure 9 In some embodiments, the fixing part 231 includes a first baffle 132c and a second baffle 132d arranged side by side, with a slot 232a formed between the first baffle 132c and the second baffle 132d. The slot 232a is formed by the first baffle 132c and the second baffle 132d. Under the premise of fixing the circuit board 100, the structure of the fixing part 231 can be simplified as much as possible to save processing steps and material costs. The first baffle 132c and the second baffle 132d protrude from the inner wall of the receiving cavity 210, so that the circuit board 100 can be set as close as possible to the inner wall of the receiving cavity 210 to make full use of the space inside the receiving cavity 210, which is beneficial to the miniaturization of the communication module. The first baffle 132c and the second baffle 132d protruding from the inner wall of the receiving cavity 210 is beneficial to the processing of the outer shell 200. For example, the first baffle 132c and the second baffle 132d can be integrally formed with the second shell 230 by injection molding.

[0069] Please see Figure 8 and Figure 9 In some embodiments, two fixing parts 231 are provided, and the two fixing parts 231 are arranged opposite each other along the width direction of the communication module to improve the reliability of the connection between the circuit board 100 and the second housing 230. With the two fixing parts 231 arranged opposite each other, the circuit board 100 can be stably placed inside the receiving cavity 210 while minimizing the material of the fixing parts 231. In the width direction of the communication module, the width of the sub-circuit board 120 is smaller than the width of the main circuit board 110 to prevent the sub-circuit board 120 from obstructing the connection between the main circuit board 110 and the slot 232a.

[0070] Please see Figure 8 and Figure 9 In some embodiments, the inner side of the second housing 230 has a first buckle 233, which is used to fasten the interface portion 121 of the circuit board 100.

[0071] The circuit board 100 is located within the receiving cavity 210. The first end of the interface portion 121 passes through the opening 235 and is secured to the interface portion 121 of the circuit board 100 by the first latch 233, further improving the reliability of the connection between the second housing 230 and the circuit board 100. The first latch 233 enables quick docking between the second housing 230 and the interface portion 121, improving assembly efficiency. The inner side of the second housing 230 is the side facing the receiving cavity 210. The slot 232a secures the main circuit board 110, and the first latch 233 tightly engages the interface portion 121 of the sub-circuit board 120 to reduce the shaking of the circuit board 100 within the receiving cavity 210.

[0072] Please see Figure 8 and Figure 9 In some embodiments, along the thickness direction of the communication module, the first buckle 233 is located on the first side of the opening 235, and the fixing part 231 is located on the second side of the opening 235; the first side and the second side are opposite to each other; by fixing the first buckle 233 and the fixing part 231, the displacement of the circuit board 100 in the thickness direction of the communication module is limited, and the shaking of the circuit board 100 during use is reduced; by the first buckle 233 and the fixing part 231, the interface part 121 is stably inserted into the opening 235, reducing the displacement of the interface part 121 relative to the opening 235, so as to ensure the stable connection between the communication module and the photovoltaic inverter.

[0073] Please see Figure 8 and Figure 9 In some embodiments, one end of the first buckle 233 is connected to the edge of the opening 235, and the other end extends along the length of the communication module to make the interface 121 and the opening 235 as tightly connected as possible; two first buckles 233 can be provided; generally, in order to improve the waterproof performance of the communication module, a second sealing ring 350 can be provided at the opening 235; the first buckle 233 is connected to the edge of the opening 235 and tightly fastens the interface 121, so that the interface 121 and the opening 235 fit tightly together, further improving the waterproof performance of the communication module.

[0074] Please see Figure 8 and Figure 9In some embodiments, the first latch 233 is provided with a protrusion 234, and the side of the protrusion 234 facing the opening 235 has a stop surface 234a. The stop surface 234a is used to abut against the second end of the interface portion 121 of the circuit board 100. The stop surface 234a restricts the interface portion 121 from moving away from the opening 235, thereby making the interface portion 121 and the opening 235 fit tightly. During the process of inserting the interface portion 121 from the inside of the second housing 230 into the opening 235, the first latch 233 is deformed and moves away from the opening 235 due to the pressure of the interface portion 121. The interface portion 121 bends away from the fixing portion 231 and continues to slide within the opening 235 until the protrusion 234 is located at the end of the interface portion 121. At this time, the first buckle 233 is restored, and the stop surface 234a abuts against the second end of the interface portion 121, thereby limiting the interface portion 121. The protrusion 234 has a guide surface 234b, which is a plane inclined relative to the stop surface 234a. The guide surface 234b is used to guide the interface portion 121 to the stop surface 234a. The protrusion 234 can be provided at the end of the first buckle 233.

[0075] Please see Figures 8 to 10 In some embodiments, the first housing 220 has a receiving groove 222 for receiving the circuit board 100; the second housing 230 includes a cover 240, which covers the opening of the receiving groove 222, and the cover 240 and the receiving groove 222 define a receiving cavity 210; the circuit board 100 is housed in the receiving groove 222, and the receiving groove 222 is opened and closed by the cover 240 to allow for wiring or maintenance of the circuit board 100; a fixing part 231 is disposed on the inner side of the second housing 230, so that the circuit board 100 is fixed thereto. Second shell 230; during the opening of the outer shell 200, as the first shell 220 and the second shell 230 separate, the cover 240 gradually moves away from the opening of the receiving groove 222, causing the circuit board 100 to move from inside the receiving groove 222 to outside the receiving groove 222; by separating the first shell 220 and the second shell 230, the circuit board 100 can be taken out, exposing the circuit board 100, allowing direct operation on the circuit board 100 fixed in the second shell 230, reducing disassembly and assembly steps, and facilitating rapid disassembly and assembly of the communication module.

[0076] Please see Figures 8 to 10In some embodiments, the second shell 230 further includes a connecting sidewall 250 surrounding the periphery of the cover 240. The connecting sidewall 250 is embedded in the receiving groove 222, so that the first shell 220 and the second shell 230 are connected. In other embodiments, the connecting sidewall 250 may be sleeved outside the receiving groove 222. This embodiment of the present invention does not particularly limit this. The slot 232a includes a first slot 232b and a first slot 232c. The first slot 232b is disposed in the cover 240, and the first slot 232c is disposed in the connecting sidewall 250. Through the first slot 232b and the first slot 232c, the circuit board 100 can be limited from different directions, thereby improving the firmness of the circuit board 100 installation and reducing the shaking of the circuit board 100 in the receiving cavity 210. Setting multiple slots 232a can improve the stability of the circuit board 100 connection. The first slot 232b and the first slot 232c are both located in the second housing 230. When disassembling the circuit board 100 separately, the circuit board 100 can be pulled out from the second housing 230, which is simple to disassemble.

[0077] Please see Figures 8 to 10 In some embodiments, a second buckle 252 can be provided on the connecting sidewall 250, and an engaging groove 223 can be provided on the inner wall of the receiving groove 222. Through the engagement of the second buckle 252 and the engaging groove 223, the first shell 220 and the second shell 230 can be quickly connected and separated. Specifically, the connecting sidewall 250 has a connecting groove 251, and the second buckle 252 is connected to the sidewall of the connecting groove 251 away from the cover 240 and extends towards the cover 240. The second buckle 252 is inclined from the opening of the connecting groove 251 towards the bottom of the groove away from the connecting groove 251. As the second shell 230 moves towards the first shell 220, the connecting sidewall 250 is pressed by the inner wall of the receiving groove 222 during the process of being embedded in the receiving groove 222. The second buckle 252 deforms and moves within the connecting groove 251. When the second latch 252 moves to the engagement groove 223, the second latch 252 returns to its original position and is engaged in the engagement groove 223. At this time, the connecting side wall 250 is fully embedded in the receiving groove 222. The engagement groove 223 can be a through groove that passes through the side wall of the connecting receiving groove 222. When the second latch 252 is engaged in the engagement groove 223, the second latch 252 can be pried open from the outside of the communication module to deform it and move it into the connecting groove 251, thereby separating the second shell 230 from the second shell 230. A limiting block 251a is provided at the bottom of the connecting groove 251. When the second latch 252 moves into the connecting groove 251 after being folded, the limiting block 251a can abut against the second latch 252 to prevent the second latch 252 from moving further and to prevent the second latch 252 from being over-folded.

[0078] Please see Figures 10 to 11In some embodiments, the connecting sidewall 250 includes a first segment 253 and a second segment 254 that are interconnected. The first segment 253 and the second segment 254 are arranged along the depth direction of the receiving groove 222. The first segment 253 is embedded in the receiving groove 222, and the second segment 254 is provided with a connecting groove 251. A second snap fastener 252 is provided in the second segment 254. By engaging the first segment 253 with the receiving groove 222 and the second segment 254 with the receiving groove 222, the reliability of the connection between the first shell 220 and the second shell 230 is ensured, while also ensuring the sealing performance of the first shell 220 and the second shell 230. To improve the sealing effect, sealing rubber can be provided on the periphery of the first segment 253. Of course, in other embodiments, the connecting sidewall 250 and the receiving groove 222 can also be connected by threads.

[0079] In other embodiments, the first shell 220 and the second shell 230 can be half shells. The first shell 220 can be provided with a first groove, and the second shell 230 can be provided with a second groove. When the first shell 220 and the second shell 230 are connected, the first groove and the second groove communicate to form a receiving cavity 210.

[0080] Please see Figures 10 to 11 In some embodiments, a protrusion 255 is provided on one side of the connecting sidewall 250, and a corresponding recess 222a is provided on the inner wall of the receiving groove 222. The protrusion 255 and the recess 222a cooperate to position the first shell 220 and the second shell 230. Before the connecting sidewall 250 is embedded into the receiving groove 222, the protrusion 255 and the recess 222a need to be aligned, which can effectively prevent assembly errors. The recess 222a is connected to the opening of the receiving groove 222. During the process of embedding the connecting sidewall 250 into the receiving groove 222, the protrusion 255 enters the recess 222a from the opening of the receiving groove 222 and moves relative to the recess 222a. The anti-foolproof setting is provided on the side of the connecting sidewall 250 near the cover 240 to minimize the size of the recess 222a in the length direction of the communication module.

[0081] The second aspect of this utility model provides a photovoltaic inverter, including an inverter body and a communication module as described in the first aspect, wherein the communication module is installed on the inverter body.

[0082] If the communication module has the beneficial effects of the above embodiments, then the photovoltaic inverter will have the corresponding beneficial effects of the above embodiments. The specific implementation method can be referred to the above embodiments, and will not be repeated in this application.

[0083] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A communication module, characterized by The application relates to a communication module. The application relates to a communication module. The application relates to a communication module.

2. The communication module of claim 1, wherein, The application relates to a communication module.

3. The communication module of claim 2, wherein, The application relates to a communication module.

4. The communication module of claim 1, wherein, The application relates to a communication module.

5. The communication module according to any one of claims 1 to 4, wherein The application relates to a communication module.

6. The communication module of claim 5, wherein, The application relates to a communication module.

7. The communication module of claim 5, wherein, The application relates to a communication module.

8. The communication module of claim 2, wherein, The application relates to a communication module.

9. The communication module of claim 8, wherein, The application relates to a communication module.

10. The communication module of claim 9, wherein, The application relates to a communication module.

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