Data acquisition rod and photovoltaic inverter thereof

Abstract

According to the data acquisition rod, the upper end of an open shell of an outer shell is an open end, a sealing piece is inserted and installed, the sealing piece comprises an end cover, an insertion shell of the sealing piece is inserted into the open end of the open shell, a rectangular notch is formed in the end cover of the sealing piece, and a USB plug at the top end of a PCB penetrates through the rectangular notch to be exposed outside; an annular groove is formed in the periphery of the insertion shell, a sealing ring is embedded in the annular groove, elastic pieces are arranged on the two sides of the sealing piece, elastic piece notches are formed in the two sides of the opening shell, and during installation, the elastic force of the elastic pieces is overcome with force, and the sealing piece for installing the PCB is inserted into the opening shell; the elastic pieces just slide on the inner walls above the elastic piece notches in the two sides of the open shell to be popped out, and the upper ends of the elastic pieces just clamp the upper walls of the elastic piece notches, so that the sealing ring is clamped between the insertion shell and the inner wall of the open shell to form waterproof sealing. The structure is simple, assembling and using are convenient, waterproof performance is good and stable, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the photovoltaic inverter manufacturing technical field in the solar photovoltaic power generation technology field relates to a kind of data acquisition rod and photovoltaic inverter thereof. BACKGROUND

[0002] Data acquisition rod is the important component of photovoltaic inverter, it bears real-time data acquisition to inverter, remote monitoring operating state and other functions. Through these data, it can be accurately implemented to photovoltaic inverter control operation by its control software, and also can realize intelligent maintenance and other extended functions. In the process of realizing the above functions in communication module, a lot of manpower, material resources and financial resources can be saved.

[0003] However, the data acquisition rod used in the existing photovoltaic inverter on the market has the problems of complex structure, complicated assembly, poor waterproofness and short service life, which need to be solved. SUMMARY

[0004] In view of the above deficiencies of the prior art, the technical problem to be solved by the present application is to provide a data acquisition rod and photovoltaic inverter thereof, which are simple in structure, easy to assemble and use, good in waterproofness and stability, and long in service life.

[0005] The technical scheme adopted by the data acquisition rod and photovoltaic inverter thereof of the present application is as follows:

[0006] PCB circuit board, one end of the PCB circuit board is provided with a USB plug;

[0007] The shell body includes an open shell body and a sealing piece, the PCB circuit board is located in the open shell body, the sealing piece is connected to one end of the PCB circuit board, and the USB plug passes through the sealing piece; the sealing piece is provided with a spring piece, the open shell body is provided with a spring piece notch corresponding to the spring piece, the sealing piece is provided with an O-shaped sealing ring, when the sealing piece is installed on the open shell body, the spring piece is pressed and moves along the inside of the open shell body and passes out from the spring piece notch, at the same time, the O-shaped sealing ring is pressed tightly against the inside of the open shell body and the sealing piece, and the sealing piece and the open shell body cooperate to form a closed space for accommodating the PCB circuit board.

[0008] Further scheme of data acquisition rod:

[0009] The open shell upper end is an open end, the sealing element comprises an end cover and an insertion shell, the insertion shell is inserted into the open end of the open shell; the end cover is provided with a rectangular notch, and the USB plug is exposed outside through the rectangular notch; the insertion shell is provided with a ring groove on the periphery, the O-shaped sealing ring is embedded in the ring groove, and the sealing element is provided with the elastic sheet on both sides; the open shell is provided with an elastic sheet notch at the corresponding position on both sides, and the open shell is inserted into the open end of the open shell when the sealing element with the installed PCB is installed; when the open end of the open shell abuts against the lower surface of the end cover of the sealing element, the elastic sheet is just completed sliding on the inner wall above the elastic sheet notch on both sides of the open shell and is popped out, the upper end of the elastic sheet is just clamped on the upper wall of the elastic sheet notch on both sides of the open shell, so that the O-shaped sealing ring embedded in the ring groove is tightly clamped between the insertion shell of the sealing element and the inner wall of the open shell to form a waterproof seal.

[0010] The PCB is provided with a block-shaped connecting piece for fixed connection with the inner wall of the sealing element, the inner wall of the sealing element is provided with a barb for fixed connection with the block-shaped connecting piece on the PCB, and the two sides are provided with a limiting stop rib.

[0011] The PCB is fixedly installed from top to bottom with a USB plug, an LDO device, a WIFI module, an antenna block, an indicator light group and a reset button which are electrically connected with each other; the LDO device on the PCB is used as the block-shaped connecting piece.

[0012] The sealing element is provided with a guide rib on the outer wall surface of the insertion shell.

[0013] The sealing element is provided with a guide lower boss matched with the inner wall of the open end of the open shell under the end cover.

[0014] The sealing element is provided with a downward extending positioning lower block on the back side of the end cover, and the open shell is provided with a positioning notch for embedding the lower block at the back side of the open end.

[0015] The outer wall of the sealing element on both sides is provided with a protruding block for limiting the stroke of the elastic sheet.

[0016] The inner bottom wall of the open shell is symmetrically provided with two resting ribs for resting the bottom end of the PCB, and a positioning recess for positioning the bottom end of the PCB is formed in the middle of the two resting ribs.

[0017] The indicator light group is located at the near bottom end of the PCB circuit board, and a foam block is arranged at the location of the indicator light group. The foam block 26 is adhered to the PCB circuit board by an adhesive. The foam block is provided with light focusing holes at two indicator lights of the indicator light group. The two indicator lights are respectively located at the bottom of the respective light focusing holes, and the light emitted by the two indicator lights is concentrated in the light focusing holes. The front wall of the open shell is provided with two light transmission perforations at the location of the indicator light group of the PCB circuit board, and a front wall small pit is arranged on the outer surface of the front wall around the two light transmission perforations. A light transmission diaphragm is adhered to the front wall small pit.

[0018] The reset button is located at the bottom end of the PCB circuit board, and the telescopic rod of the reset button extends downward. The bottom wall of the open shell is provided with a bottom small hole for the telescopic rod of the reset button to extend and retract. A bottom wall pit is arranged on the outer surface of the bottom wall of the open shell, and a bottom wall diaphragm is adhered to the bottom wall pit. When the center of the bottom wall diaphragm is pressed, the reset button can be pressed.

[0019] The outer surface of the front wall of the open shell is provided with a front wall large pit, and a front wall identification diaphragm is adhered to the front wall large pit. The outer surface of the rear wall of the open shell is provided with a rear wall pit, and a rear wall identification diaphragm is adhered to the rear wall pit.

[0020] The photovoltaic inverter scheme is a photovoltaic inverter, and a USB insertion port is arranged on the outer side of the cabinet. The USB is inserted or inserted with a data collection rod as described in any of the above.

[0021] The ring groove is arranged on the periphery of the insertion shell of the sealing element of the data collection rod, and the ring groove is embedded with an O-shaped sealing ring. Spring sheets are arranged on both sides of the sealing element. Spring sheet notches are arranged at the corresponding positions on both sides of the open shell. When installing, the force is used to overcome the elasticity of the spring sheets, and the sealing element with the installed PCB circuit board is inserted into the open end of the open shell. When the open end of the open shell abuts against the lower surface of the end cover of the sealing element, the spring sheets slide on the inner walls above the spring sheet notches on both sides of the open shell and are ejected. The upper ends of the spring sheets are just clamped on the upper walls of the spring sheet notches on both sides of the open shell, so that the O-shaped sealing ring embedded in the ring groove is tightly clamped between the insertion shell of the sealing element and the inner wall of the open shell to form a waterproof seal. The structure is simple, easy to assemble and use, good in waterproofness and stability, and long in service life. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front perspective view of the data collection rod of the present application.

[0023] Figure 2 It is a back perspective view of the data collection rod of the present application.

[0024] Figure 3 It is a front perspective view of the sealing element.

[0025] Figure 4 It is a back perspective view of the sealing element.

[0026] Figure 5 is a half bottom view of the sealing member.

[0027] Figure 6 is a bottom view of the sealing member.

[0028] Figure 7 is a front view of the open shell and its separated membrane.

[0029] Figure 8 is a half bottom view of the open shell and its separated membrane.

[0030] Figure 9 is a top view of the open shell.

[0031] Figure 10 is a front view of the open shell and its pasted membrane.

[0032] Figure 11 is a bottom view of the open shell and its pasted membrane.

[0033] Figure 12 is a perspective view of the PCB and its foam block.

[0034] Figure 13 is a front view of the PCB and its main components.

[0035] Figure 14 is a perspective view of the sealing member and the PCB.

[0036] Reference signs in the figure: 1. PCB; 2. open shell; 3. sealing member; 4. end cover; 5. insertion shell; 6. USB plug; 7. rectangular notch; 8. ring groove; 9. O-ring; 10. spring; 11. spring notch; 12. barb; 13. limiting rib; 14. LDO device; 15. WIFI module; 16. antenna block; 17. indicator light group; 18. reset button; 19. guide rib; 20. guide lower boss; 21. positioning lower block; 22. positioning notch; 23. convex block; 24. resting rib; 25. positioning recess; 26. foam block; 27. light focusing hole; 28. light transmission hole; 29. front wall small pit; 30. light transmission membrane; 31. telescopic stick; 32. bottom hole; 33. bottom wall pit; 34. bottom wall membrane; 35. front wall large pit; 36. front wall identification membrane; 37. rear wall pit; 38. rear wall identification membrane. DETAILED DESCRIPTION

[0037] The specific embodiments of the present application are described below with reference to the drawings. Figures 1 to 14 shown.

[0038] A data collection rod, as a whole, is shown in Figure 1 、 Figure 2 , comprising a shell and a PCB circuit board 1 installed in the shell. The shell comprises an open shell 2 and a sealing member 3 inserted and installed on the upper end of the shell. As shown in Figure 10 、 Figure 11 , the upper end of the open shell 2 is an open end. As shown in Figure 3 、 Figure 4 、 Figure 5 , the sealing member 3 comprises an end cover 4 and an insertion shell 5 inserted into the open end of the open shell 2. As shown in Figure 12 、 Figure 13 , a USB plug 6 is fixedly installed at the top end of the PCB circuit board 1; the PCB circuit board 1 is fixedly installed in the sealing member 3. The end cover 4 of the sealing member 3 is provided with a rectangular notch 7, and the USB plug 6 is exposed outside through the rectangular notch 7. As shown in Figure 3 、 Figure 4 、 Figure 5 , the insertion shell 5 of the sealing member 3 is provided with a ring groove 8, the ring groove 8 is embedded with an O-shaped sealing ring 9, and the sealing member 3 is provided with a spring 10 on both sides, and the open shell 2 is provided with a spring notch 11 at the corresponding position on both sides. When installing, the spring 10 is forced to overcome the elastic force, the sealing member 3 with the installed PCB circuit board 1 is inserted into the open end of the open shell 2, when the upper end of the open shell 2 abuts against the lower surface of the end cover 4 of the sealing member 3, the spring 10 just completes the sliding on the inner wall above the spring notch 11 on both sides of the open shell 2 and pops out, and the upper end of the spring 10 just clamps the upper wall of the spring notch 11 on both sides of the open shell 2, so that the O-shaped sealing ring 9 embedded in the ring groove 8 is tightly clamped between the insertion shell 5 of the sealing member 3 and the inner wall of the open shell 2 to form a waterproof seal.

[0039] The PCB circuit board 1 is provided with a block-shaped connector for fixed connection with the inner wall of the sealing member 3. As shown in Figure 6 , the inner wall of the sealing member 3 is provided with a barb 12 for fixed connection with the block-shaped connector on the PCB circuit board 1, and a limiting rib 13 is arranged on both sides. As shown in Figure 13 , the PCB circuit board 1 is fixedly installed from top to bottom with a USB plug 6, an LDO device 14, a WIFI module 15, an antenna block 16, an indicator light group 17 and a reset button 18 which are electrically connected with each other; the LDO device 14 on the PCB circuit board 1 serves as the block-shaped connector, and the PCB circuit board 1 is firmly fixedly installed in the sealing member 3 through the LDO device 14.

[0040] As shown in Figure 3 、 Figure 4 、 Figure 5As shown, the sealing member 3 is provided with guide ribs 19 on the surface of its outer wall, which can facilitate the insertion of the sealing member 3 into the opening end of the open shell 2 to complete the installation. The sealing member 3 is provided with a guide lower boss 20 below the end cover 4, which is matched with the inner wall of the opening end of the open shell 2. This not only facilitates the insertion of the sealing member 3 into the opening end of the open shell 2 to complete the installation, but also makes the connection more firm and stable. The outer wall of the sealing member 3 is provided with a raised block 23 at the position of the elastic sheet 10, which is used to limit the stroke of the elastic sheet 10. In this way, the elastic sheet 10 can be prevented from being deformed too much and broken to affect its service life while ensuring its elasticity.

[0041] As shown in Figure 4 , the sealing member 3 is provided with a downwardly extending positioning lower block 21 on the back side of the end cover 4. As shown in Figure 10 , Figure 11 , the open shell 2 is provided with a positioning notch 22 on the back side of the opening end, which is used to embed the lower block. In this way, the orientation error during installation can be avoided, and the installation efficiency is improved.

[0042] As shown in Figure 9 , the inner bottom wall of the open shell 2 is symmetrically provided with two resting ribs 24 for resting the bottom end of the PCB circuit board 1, and a positioning recess 25 is formed in the middle of the two resting ribs 24 for positioning the bottom end of the PCB circuit board 1. In this way, the bottom end of the PCB circuit board 1 can be conveniently positioned on the inner bottom wall of the open shell 2. The orientation error during installation can also be avoided, and the installation efficiency is improved.

[0043] As shown in Figure 12 , Figure 13 , the indicator light group 17 is located at the position close to the bottom end of the PCB circuit board 1, and a foam block 26 is provided at the position of the indicator light group 17. The foam block 26 is adhered to the PCB circuit board 1 by an adhesive, and light focusing holes 27 are formed in the foam block 26 at the positions of the two indicator lights of the indicator light group 17. The two indicator lights are respectively located at the bottom of the respective light focusing holes 27, and the light emitted by the two indicator lights is concentrated in the light focusing holes 27. As shown in Figure 7 , the front wall of the open shell 2 is provided with two light transmission perforations 28 at the position of the indicator light group 17 of the PCB circuit board 1, and a front wall shallow pit 29 is formed around the outer surface of the front wall at the positions of the two light transmission perforations 28. A light transmission diaphragm 30 is adhered to the front wall shallow pit 29. After the adhesion is completed, as shown in Figure 10 .

[0044] As shown in Figure 13 , the reset button 18 is located at the bottom end of the PCB circuit board 1, and a telescopic rod 31 extends downward. As shown in Figure 8As shown, the bottom wall of the open shell 2 is provided with a bottom small hole 32 for the extension and retraction of the extension small rod 31 of the reset button 18, and the outer surface of the bottom wall of the open shell 2 is provided with a bottom wall shallow pit 33, and a bottom wall diaphragm 34 is pasted, so that the center of the bottom wall diaphragm 34 is pressed to press the reset button 18. After pasting is completed, as shown in Figure 11 As shown.

[0045] As shown Figure 7 , Figure 8 As shown, the outer surface of the front wall of the open shell 2 is provided with a front wall large shallow pit 35, and a front wall identification diaphragm 36 is pasted. The outer surface of the rear wall of the open shell 2 is provided with a rear wall shallow pit 37, and a rear wall identification diaphragm 38 is pasted. After pasting is completed, as shown in Figure 10 and Figure 11 respectively. The identification diaphragm can print some user attention matters or a two-dimensional code for users to scan the code to understand more information.

[0046] The data acquisition rod of the application, the PCB circuit board 1 and the outer shell are respectively completed on the respective production lines. The constituent parts of the outer shell, the open shell 2 and the sealing part 3, can all be plastic injection parts. When the data acquisition rod is assembled as a whole, the O-shaped sealing ring 9 can be embedded and installed into the ring groove 8 of the insertion shell 5 of the sealing part 3, and then the completed PCB circuit board 1 and the sealing part 3 are fixed and installed into the sealing part and the PCB circuit board assembly as shown in Figure 14 The insertion shell 5 is inserted into the open end of the open shell 2, and in the process of insertion, the elastic sheet 10 is deformed under pressure; when the upper edge of the open end of the open shell 2 abuts against the lower surface of the end cover 4 of the sealing part 3, the elastic sheet 10 just completes the sliding on the inner wall above the elastic sheet notch 11 on both sides of the open shell 2 and pops out, and a "pop" sound is emitted, and the upper end of the elastic sheet 10 just clamps the upper wall of the elastic sheet notch 11 on both sides of the open shell 2, so that the O-shaped sealing ring 9 embedded in the ring groove 8 is tightly clamped between the insertion shell 5 of the sealing part 3 and the inner wall of the open shell 2 to form a waterproof seal. When assembling, the installer can be sure that the installation is successfully completed when the sound is heard. When it is necessary to separate the sealing part and the PCB circuit board assembly from the open shell 2, the sealing part and the PCB circuit board assembly cannot be directly pulled out from the open shell 2 to separate; but as long as the elastic sheet 10 exposed in the elastic sheet notch 11 on both sides of the open shell 2 is pressed slightly, the sealing part and the PCB circuit board assembly can be pulled out from the open shell 2 to separate. This is the ingenious part of the design scheme of the data acquisition rod, and it is also the outstanding feature and technical breakthrough of the data acquisition rod compared with the prior art.

[0047] The corresponding photovoltaic inverter scheme is: a photovoltaic inverter, the outer side of the cabinet is provided with a USB insertion port, and the USB is inserted or for inserting the data acquisition rod as described in any of the above.

Claims

1. A data acquisition wand, comprising: Comprising PCB (1), one end of the PCB (1) is provided with a USB plug (6); The outer shell comprises an open shell (2) and a sealing piece (3), the PCB (1) is located in the open shell (2), the sealing piece (3) is connected with one end of the PCB (1) and the USB plug (6) passes through the sealing piece (3); The sealing piece (3) is provided with a spring piece (10), the open shell (2) is provided with a spring piece notch (11) corresponding to the spring piece (10), the sealing piece is provided with an O-shaped sealing ring (9), when the sealing piece (3) is installed on the open shell (2), the spring piece (10) is pressed and moves along the inner side of the open shell (2) and passes out from the spring piece notch (11), at the same time, the O-shaped sealing ring (9) is pressed and tightly adheres to the inner side of the open shell (2) and the sealing piece (3), the sealing piece (3) and the open shell (2) cooperate to form a closed space for accommodating the PCB (1).

2. The data collection wand of claim 1, wherein, The upper end of the open shell (2) is an open end, the sealing piece (3) comprises an end cover (4) and an insertion shell (5), the insertion shell (5) is inserted into the open end of the open shell (2); The end cover (4) is provided with a rectangular notch (7), the USB plug (6) passes through the rectangular notch (7) and is exposed outside; The insertion shell (5) is provided with a ring groove (8) on the periphery, the O-shaped sealing ring (9) is embedded in the ring groove (8), the sealing piece (3) is provided with the spring piece (10) on both sides, the spring piece notches (11) are opened at the corresponding positions on both sides of the open shell (2), when installing, the force is needed to overcome the elasticity of the spring piece (10), the sealing piece (3) with the installed PCB (1) is inserted into the open end of the open shell (2), when the open end of the open shell (2) abuts against the lower surface of the end cover (4) of the sealing piece (3), the spring piece (10) just completes the sliding on the inner wall above the spring piece notches (11) on both sides of the open shell (2) and pops out, the upper end of the spring piece (10) just clamps the upper wall of the spring piece notches (11) on both sides of the open shell (2), so that the O-shaped sealing ring (9) embedded in the ring groove (8) is tightly clamped between the insertion shell (5) of the sealing piece (3) and the inner wall of the open shell (2) to form a waterproof seal.

3. The data acquisition wand of claim 1 or 2, wherein, The PCB (1) is provided with a block-shaped connecting piece for fixed connection with the inner wall of the sealing piece (3), the inner wall of the sealing piece (3) is provided with a barb (12) for fixed connection with the block-shaped connecting piece on the PCB (1), and limit stop ribs (13) are arranged on both sides thereof.

4. The data acquisition wand of claim 3 wherein, The PCB (1) is fixedly installed with a USB plug (6), an LDO device (14), a WIFI module (15), an antenna block (16), an indicator light group (17) and a reset button (18) from top to bottom and electrically connected with each other; The LDO device (14) on the PCB (1) serves as the block-shaped connecting piece.

5. The data acquisition wand of claim 1 or 2, wherein, The sealing member (3) is provided with a guide rib (19) on the surface of the outer wall of the shell (5) into which it is inserted, a guide lower boss (20) is provided under the end cover (4) of the sealing member (3) and matches the inner wall of the opening end of the open shell (2), a positioning lower protrusion (21) is provided on the back side of the end cover (4) of the sealing member (3) and extends downward, and a positioning notch (22) is provided in the back side opening end of the open shell (2) for embedding the lower protrusion.

6. The data acquisition wand of claim 1 or 2, wherein, The outer wall of the sealing member (3) is provided with a raised block (23) on both sides at the position of the elastic sheet (10) for limiting the movement range of the elastic sheet (10).

7. The data acquisition wand of claim 1 or 2, wherein, The inner bottom wall of the open shell (2) is symmetrically provided with two resting ribs (24) for resting the bottom end of the PCB circuit board (1), and a positioning recess (25) is provided in the middle of the two resting ribs (24) for positioning the bottom end of the PCB circuit board (1).

8. The data acquisition wand of claim 4 wherein, The indicator light group (17) is located at the near bottom end of the PCB circuit board (1), and a foam block (26) is provided at the position of the indicator light group (17), the foam block (26) is pasted on the PCB circuit board (1) with adhesive, and light focusing holes (27) are provided in the foam block (26) at the positions of the two indicator lights of the indicator light group (17), so that the two indicator lights are respectively located at the bottom of the respective light focusing holes (27) and the light emitted by the two indicator lights is concentrated in the light focusing holes (27); two light transmission perforations (28) are provided in the front wall of the open shell (2) at the position of the indicator light group (17) of the PCB circuit board (1), and front wall small pits (29) are provided around the outer surface of the front wall of the two light transmission perforations (28), and a light transmission diaphragm (30) is pasted on the front wall small pits (29); the reset button (18) is located at the bottom end of the PCB circuit board (1), and the telescopic rod (31) of the reset button (18) extends downward; a bottom small hole (32) is provided in the bottom wall of the open shell (2) for the telescopic rod (31) of the reset button (18) to extend and retract, and a bottom wall pit (33) is provided on the outer surface of the bottom wall of the open shell (2) and a bottom wall diaphragm (34) is pasted on the bottom wall pit (33), so that the center of the bottom wall diaphragm (34) can be pressed to press the reset button (18).

9. The data acquisition wand of claim 1, wherein, A front wall large pit (35) is provided on the outer surface of the front wall of the open shell (2) and a front wall identification diaphragm (36) is pasted on the front wall large pit (35), and a rear wall pit (37) is provided on the outer surface of the rear wall of the open shell (2) and a rear wall identification diaphragm (38) is pasted on the rear wall pit (37).

10. A photovoltaic inverter, which is provided with a USB insertion port on the outside of the cabinet, characterized in that, The USB is inserted with or for inserting the data acquisition rod as claimed in any one of claims 1 to 9. The USB is inserted with or for inserting the data acquisition rod as claimed in any one of claims 1 to 9.

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