Photovoltaic inverter surface cover module

Abstract

The utility model belongs to the technical field of photovoltaic inverters, and discloses a photovoltaic inverter surface cover module group, which comprises a circuit board module group, the circuit board module group is fixed on a plastic surface frame through a fixing screw, the circuit board module group is connected with a signal line, an antenna is pasted in the plastic surface frame through an adhesive sticker, and the signal line is connected with the circuit board module group. An insulating sheet is adhered to the front surface of the plastic surface frame through an adhesive sticker, and the plastic surface frame is clamped on the hardware sheet metal panel. According to the utility model, through the arrangement of the plastic surface frame, the problems in the prior art that antenna signals are shielded and attenuated by a metal case, an external antenna and a patch cord need to be additionally arranged on an inverter, and the cost is relatively high are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic inverters, and more specifically, relates to a photovoltaic inverter cover module. Background Art

[0002] Under the wave of the global new energy revolution, household photovoltaic inverters, as key equipment for clean energy conversion, are becoming increasingly popular at an alarming rate. Especially in countries and regions with scarce electricity resources, photovoltaic inverters have become a necessity for almost every household, and the huge market demand is self-evident.

[0003] In order to meet this huge market demand, various types of photovoltaic inverter chassis covers have emerged on the market. These cover modules are not only decorations for the appearance of the inverter, but also important carriers of its internal functions. Usually, these cover modules are composed of five core parts: hardware panel, keypad, LCD display screen, signal line and insulation sticker. They each play different roles and work together to ensure the efficient and stable operation of the photovoltaic inverter.

[0004] However, despite the wide variety of photovoltaic inverter cover modules on the market, their designs are relatively simple. Most cover modules use a pure metal panel as the main body, and use screws and other fixings to directly support and lock each component to the metal panel. Although this design method is simple and direct, it has many disadvantages. First, too many fixing screws not only increase production costs, but also reduce production and assembly efficiency. Secondly, when the inverter has wireless communication functions such as WiFi / Bluetooth, the metal chassis will shield and attenuate the antenna signal, affecting the stability and transmission distance of wireless communication. In order to solve this problem, the inverter has to add an external antenna and adapter cable, which undoubtedly further increases the cost and production complexity.

[0005] To this end, the utility model provides a photovoltaic inverter cover module. Utility Model Content

[0006] The purpose of the utility model is to provide a photovoltaic inverter cover module to solve the problems raised in the above background technology.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A photovoltaic inverter cover module comprises a circuit board module, wherein the circuit board module is fixed to a plastic face frame by fixing screws, the circuit board module is connected to a signal line, an antenna is attached to the inside of the plastic face frame by adhesive tape, an insulating sheet is attached to the front of the plastic face frame by adhesive tape, and the plastic face frame is mounted on a metal sheet metal panel.

[0009] As a further preferred technical solution of the utility model, the circuit board module includes a PCB board, the outer contour of the PCB board is circular, a rectangular notch is opened on the right side of the PCB board, a screw hole for screwing with a plastic face frame is opened on the PCB board, an LCD display screen is arranged in the center of the PCB board, a wiring socket is arranged on the right side of the LCD display screen, an LED light group is arranged on the upper side of the LCD display screen, a button group is arranged on the upper side of the LED light group, and a plurality of groups of LED light strips are arranged at equal intervals along the axial direction of the PCB board, and the LCD display screen, the wiring socket, the LED light group, the button group and the LED light strip are all electrically connected to the circuit arranged on the PCB.

[0010] As a further preferred technical solution of the utility model, a snap-in through hole is provided in the center of the hardware sheet metal panel, the outer contour of the snap-in through hole is circular, and the snap-in through hole is provided with several groups of rectangular snap-in through grooves for snapping in the plastic face frame at equal intervals along the circumferential direction.

[0011] As a further preferred technical solution of the utility model, the plastic surface frame is provided with a rectangular through groove corresponding to the LCD display screen, the upper part of the rectangular through groove is provided with a special-shaped through groove corresponding to the LED light group, the upper part of the special-shaped through groove is provided with a circular through hole corresponding to the button group, and the plastic surface frame is also provided with an arc-shaped through groove corresponding to the LED light strip;

[0012] The bottom of the plastic face frame is provided with a screw-on cylinder corresponding to the screw-on hole of the PCB board, and the outer peripheral surface of the plastic face frame is provided with a plurality of groups of spring buckles which are clamped with the metal sheet metal panel at equal intervals.

[0013] As a further preferred technical solution of the utility model, the insulating sheet is an integral piece made of acrylic material, a hollow circular hole corresponding to the button group is provided on the insulating sheet, the insulating sheet adopts a transparent design in the area corresponding to the LCD display screen, and the insulating sheet is sprayed with a white background and scattered light in the area corresponding to the LED light strip.

[0014] As a further preferred technical solution of the present invention, both ends of the signal line are provided with wiring terminals, the wiring terminals at both ends are connected through the wire body, the wiring terminal at one end is connected to the wiring socket on the circuit board module, and the wiring terminal at the other end is used to connect to the wiring socket of the control board of the inverter, and the wire body of the signal line is placed on a rectangular notch on the right side of the PCB board.

[0015] As a further preferred technical solution of the present invention, the antenna is provided with an extension line, the other end of the extension line is provided with a connection terminal, and the antenna is connected to the WiFi module via the connection terminal of the extension line.

[0016] As a further preferred technical solution of the present invention, three groups of screw holes are provided on the PCB board, and three groups of screw cylinders are also provided at the bottom of the plastic face frame. The three groups of screw holes on the PCB board are connected to the corresponding three groups of screw cylinders on the plastic face frame through three fixing screws.

[0017] As a further preferred technical solution of the utility model, the snap-in through hole is provided with four groups of rectangular snap-in grooves at equal intervals along the circumferential direction, and the outer circumferential surface of the plastic face frame is provided with four groups of spring buckles at equal intervals, and the four groups of rectangular snap-in grooves are snap-fitted correspondingly to the four groups of spring buckles.

[0018] As a further preferred technical solution of the present invention, the metal sheet panels or the insulating sheets are customized to be sprayed with various colors, graphics, trademarks, texts and other design elements.

[0019] As described above, the photovoltaic inverter cover module provided by the utility model has the following beneficial effects:

[0020] 1. The utility model utilizes the above-mentioned photovoltaic inverter cover module. Compared with the prior art, due to the adoption of such a structure, a plastic face frame is provided, and a built-in antenna is attached to the inside of the plastic face frame by adhesive. The signal emitted by the antenna can penetrate the plastic face frame area and radiate outward without attenuating the antenna signal. This solves the problem in the prior art that the antenna signal is shielded and attenuated by the metal chassis, and the inverter needs to add an additional external antenna and adapter cable, which is costly.

[0021] 2. The utility model utilizes the above-mentioned photovoltaic inverter cover module. Compared with the prior art, due to the adoption of such a structure, various key circuit components are integrated on the same PCB board, which can greatly improve the production efficiency of PCBA, reduce the number of signal jumpers and fixing screws, and improve the assembly efficiency of the whole machine.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 This is a schematic diagram of the structure of a photovoltaic inverter cover module applied for in the utility model;

[0025] Figure 2 This is a structural explosion diagram of a photovoltaic inverter cover module applied for in the utility model;

[0026] Figure 3 A schematic diagram of the circuit board module structure of a photovoltaic inverter cover module applied for in the utility model;

[0027] Figure 4 This is a schematic diagram of a plastic face frame structure of a photovoltaic inverter face cover module applied for by the utility model.

[0028] Summary of reference numerals and their descriptions:

[0029] 100, circuit board module; 110, PCB board; 111, rectangular notch; 112, screw hole; 120, LCD display; 130, wiring socket; 140, LED light group; 150, button group; 160, LED light strip; 200, fixing screw; 300, plastic face frame; 310, rectangular through slot; 320, special-shaped through slot; 330, circular through hole; 340, arc through slot; 350, screw-connected cylinder; 360, spring buckle; 400, signal line; 410, terminal block; 420, line body; 500, antenna; 510, extension line; 600, insulating sheet; 610, hollow round hole; 700, metal sheet metal panel; 710, card-mounted through hole; 720, rectangular card-mounted through slot. DETAILED DESCRIPTION

[0030] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0031] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed in this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of the implementation of this utility model. The specific structure can be described with reference to the drawings of the patent application.

[0032] The utility model provides a photovoltaic inverter cover module, please refer to Figures 1 to 4As shown, it includes a circuit board module 100, which is fixed on a plastic face frame 300 by three fixing screws 200, the circuit board module 100 is connected to a signal line 400, an antenna 500 is attached to the inside of the plastic face frame 300 by adhesive tape, an insulating sheet 600 is attached to the front of the plastic face frame 300 by adhesive tape, and the plastic face frame 300 is clamped on a metal sheet metal panel 700.

[0033] It should be noted that: in order to prevent the antenna 500 signal from being shielded and attenuated by the metal chassis, the inverter needs to add an external antenna 500 and a switching cable, which increases the production cost and reduces the production efficiency. A plastic surface frame 300 is provided which is an integral part made of plastic material, and the built-in antenna 500 is attached to the inside of the plastic surface frame by adhesive. The signal emitted by the antenna 500 can penetrate the plastic surface frame area and radiate outward, and the antenna 500 signal will not be attenuated.

[0034] Specifically, the specific structure of the circuit board module 100 is shown below. Figure 1 , Figure 2 as well as Figure 3 As shown, in this embodiment, the circuit board module 100 includes a PCB board 110, the outer profile of the PCB board 110 is circular, a rectangular notch 111 is provided on the right side of the PCB board 110, and three groups of screw holes 112 for screwing with the plastic face frame 300 are provided on the PCB board 110. An LCD display screen 120 is arranged in the center of the PCB board 110, a wiring seat 130 is arranged on the right side of the LCD display screen 120, and an LED light group 140 is arranged on the upper side of the LCD display screen 120. In this embodiment, the LED light group 140 includes three groups of LED lights, and a button group 150 is arranged on the upper side of the LED light group 140. In this embodiment, the button group 150 includes four groups of buttons. Four groups of LED light strips 160 are evenly spaced along the axial direction of the PCB board 110, and the LCD display screen 120, the wiring seat 130, the LED light group 140, the button group 150 and the LED light strip 160 are all electrically connected to the circuit arranged on the PCB board 110.

[0035] It should be noted that the circuit board module 100 integrates various key circuit components on the same PCB board 110, which can greatly improve the production efficiency of PCBA, reduce the number of signal jumpers and fixing screws 200, and improve the assembly efficiency of the whole machine.

[0036] Specifically, the specific structure of the metal sheet metal panel 700 is shown below. Figure 1 and Figure 2As shown, in this embodiment, a snap-in hole 710 is provided in the center of the metal sheet metal panel 700, the outer contour of the snap-in hole 710 is circular, and the snap-in hole 710 is provided with four groups of rectangular snap-in grooves for snapping the plastic face frame 300 at equal intervals along the circumferential direction.

[0037] Specifically, the specific structure of the plastic face frame 300 is shown below. Figure 1 , Figure 2 as well as Figure 4 As shown, in this embodiment, a rectangular through groove 310 corresponding to the LCD display screen 120 is provided on the plastic face frame 300, a special-shaped through groove 320 corresponding to the LED light group 140 is provided on the upper portion of the rectangular through groove 310, a circular through hole 330 corresponding to the button group 150 is provided on the upper portion of the special-shaped through groove 320, and an arcuate through groove 340 corresponding to the LED light strip 160 is also provided on the plastic face frame 300; a screw-on cylinder 350 corresponding to the screw-on hole 112 of the PCB board 110 is provided at the bottom of the plastic face frame 300, and four groups of spring buckles 360 that are clamped to the hardware sheet metal panel 700 are evenly spaced on the outer peripheral surface of the plastic face frame 300.

[0038] The insulating sheet 600 is an integral piece made of acrylic material, and a hollow circular hole 610 corresponding to the button group 150 is provided on the insulating sheet 600. The insulating sheet 600 is transparent in the area corresponding to the LCD display screen 120, and the insulating sheet 600 is sprayed with a white background for scattered light transmission in the area corresponding to the LED light strip 160.

[0039] The signal line 400 is provided with connection terminals 410 at both ends, and the connection terminals 410 at both ends are connected through a wire body 420. The connection terminal 410 at one end is connected to the connection socket 130 on the circuit board module 100, and the connection terminal 410 at the other end is used to connect to the connection socket 130 of the control board of the inverter. The wire body 420 of the signal line 400 is placed on a rectangular notch 111 opened on the right side of the PCB board 110.

[0040] The antenna 500 is provided with an extension line 510 , and a connection terminal 410 is provided at the other end of the extension line 510 . The antenna 500 is connected to the WiFi module via the connection terminal 410 of the extension line 510 .

[0041] During assembly, first, the antenna 500 is attached to the inside of the plastic face frame 300 by adhesive tape, then the signal line 400 is connected to the wiring socket 130 on the circuit board module 100, and then the plastic face frame 300 and the circuit board module 100 are screwed together by three fixing screws 200, and then the insulating sheet 600 is attached to the front of the plastic face frame 300 by adhesive tape, and finally the plastic face frame 300 is buckled on the corresponding snap-fit ​​through hole 710 of the hardware sheet metal panel 700, and the plastic face frame 300 is provided with a spring buckle 360, which will rebound after the buckling and assembly is completed and can firmly fix the plastic face frame on the hardware sheet metal panel 700.

[0042] The metal sheet metal panel 700 or the insulating sheet 600 are customized to be sprayed with various colors, graphics, trademarks, texts and other design elements.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A photovoltaic inverter cover module, characterized in that: It includes a circuit board module, which is fixed on a plastic face frame by fixing screws, the circuit board module is connected to a signal line, an antenna is attached to the inside of the plastic face frame by adhesive tape, an insulating sheet is attached to the front of the plastic face frame by adhesive tape, and the plastic face frame is mounted on a metal sheet metal panel.

2. A photovoltaic inverter cover module according to claim 1, characterized in that: The circuit board module includes a PCB board, the outer contour of the PCB board is circular, a rectangular notch is provided on the right side of the PCB board, a screw hole for screwing with a plastic face frame is provided on the PCB board, an LCD display screen is arranged in the center of the PCB board, a wiring socket is arranged on the right side of the LCD display screen, an LED light group is arranged on the upper side of the LCD display screen, a button group is arranged on the upper side of the LED light group, and a plurality of groups of LED light strips are arranged at equal intervals along the axial direction of the PCB board, and the LCD display screen, the wiring socket, the LED light group, the button group and the LED light strip are all electrically connected to the circuit arranged on the PCB.

3. A photovoltaic inverter cover module according to claim 1, characterized in that: A clamping through hole is provided in the center of the metal sheet metal panel, the outer contour of the clamping through hole is circular, and a plurality of groups of rectangular clamping through grooves for clamping the plastic face frame are provided in the clamping through hole at equal intervals along the circumferential direction.

4. A photovoltaic inverter cover module according to claim 2, characterized in that: The plastic surface frame is provided with a rectangular through groove corresponding to the LCD display screen, a special-shaped through groove corresponding to the LED light group is provided on the upper part of the rectangular through groove, a circular through hole corresponding to the button group is provided on the upper part of the special-shaped through groove, and an arc-shaped through groove corresponding to the LED light strip is also provided on the plastic surface frame; The bottom of the plastic face frame is provided with a screw-on cylinder corresponding to the screw-on hole of the PCB board, and the outer peripheral surface of the plastic face frame is provided with a plurality of groups of spring buckles which are clamped with the metal sheet metal panel at equal intervals.

5. A photovoltaic inverter cover module according to claim 2, characterized in that: The insulating sheet is an integral piece made of acrylic material, and a hollow circular hole corresponding to the key group is provided on the insulating sheet. The insulating sheet adopts a transparent design in the area corresponding to the LCD display screen, and the insulating sheet is sprayed with a white background for scattered light transmission in the area corresponding to the LED light strip.

6. A photovoltaic inverter cover module according to claim 2, characterized in that: Terminals are provided at both ends of the signal line, and the terminal blocks at both ends are connected through a wire body. The terminal block at one end is connected to a terminal socket on a circuit board module, and the terminal block at the other end is used to connect to a terminal socket on a control board of an inverter. The wire body of the signal line is placed on a rectangular notch on the right side of the PCB board.

7. A photovoltaic inverter cover module according to claim 1, characterized in that: The antenna is provided with an extension line, and a connection terminal is provided at the other end of the extension line. The antenna is connected to the WiFi module via the connection terminal of the extension line.

8. A photovoltaic inverter cover module according to claim 4, characterized in that: The PCB board is provided with three groups of screw holes, and the bottom of the plastic face frame is also provided with three groups of screw cylinders. The three groups of screw holes of the PCB board are connected with the corresponding three groups of screw cylinders of the plastic face frame through three fixing screws.

9. A photovoltaic inverter cover module according to claim 3, characterized in that: The clamping through hole is provided with four groups of rectangular clamping through grooves at equal intervals along the circumferential direction, and the outer circumferential surface of the plastic surface frame is provided with four groups of spring buckles at equal intervals. The four groups of rectangular clamping through grooves are correspondingly clamped with the four groups of spring buckles.

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