CN216721843U

CN216721843U - Photovoltaic inverter with insulation impedance detection function

Info

Publication number: CN216721843U
Application number: CN202220245365.0U
Authority: CN
Inventors: 熊黎侠
Original assignee: Shenzhen Siluxun Electronic Co ltd
Current assignee: Shenzhen Siluxun Electronic Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-06-10
Anticipated expiration: 2032-01-28

Abstract

The utility model discloses a photovoltaic inverter with an insulation impedance detection function, which comprises an outer shell and a limiting mechanism, wherein the inner side of the outer shell is provided with a mounting groove, the inner side of the mounting groove is connected with an inverter main body, the right side of the outer shell is connected with a heat dissipation frame, and the limiting mechanism for limiting is arranged on the left side of the heat dissipation frame. This photovoltaic inverter with insulation impedance detects function, not only can improve the radiating effect of whole device, the more normal operating that influences the device of the heat that prevents the device during operation from producing, it is impaired to lead to inside electrical components, can improve the dustproof effect of whole device simultaneously, the effectual inside that prevents that external dust from entering into the device, it is impaired to lead to the part weathering in the device, influence the life of whole device, and the stop gear who utilizes to set up can carry out effectual spacing processing to the position of inverter main part, thereby can prevent that the device from receiving the position that leads to inside inverter main part when the impact of external force from taking place the skew.

Description

Photovoltaic inverter with insulation impedance detection function

Technical Field

The utility model relates to the technical field of photovoltaic inverters, in particular to a photovoltaic inverter with an insulation impedance detection function.

Background

As one of core devices of solar photovoltaic power generation, the stability and the service life of a photovoltaic inverter relate to the working efficiency of the whole photovoltaic power station, and whether good heat dissipation can be carried out on main heating devices in the photovoltaic inverter is an important factor influencing the service life of the photovoltaic inverter.

Photovoltaic inverter on the market has the heat dissipation and dustproof efficiency is not high, has seriously influenced the inside whole radiating effect of dc-to-ac converter, and dustproof effect is relatively poor, can not carry out effectual fixed processing to the main part position of dc-to-ac converter moreover, and the position that leads to the main part when the device receives the impact easily changes, influences subsequent normal operating, for this reason, we propose such photovoltaic inverter with insulation impedance detection function.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a photovoltaic inverter with insulation resistance detection function, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a photovoltaic inverter with insulation impedance detection function comprises an outer shell and a limiting mechanism, wherein the inner side of the outer shell is provided with a mounting groove, the inner side of the mounting groove is connected with an inverter main body, the right side of the outer shell is connected with a heat dissipation frame, the limiting mechanism for limiting is mounted on the left side of the heat dissipation frame, the limiting mechanism comprises a limiting seat, an ejector rod, a top plate, a movable block, a guide rod, a telescopic spring, a guide groove and a through hole, the inner cavity of the limiting seat is connected with the ejector rod, the left side of the ejector rod is connected with the top plate, the movable block is mounted at two ends of the tail part of the ejector rod, the inner side of the movable block is connected with the guide rod, the outer surface of the guide rod is connected with the telescopic spring, the guide groove is distributed on the outer side of the telescopic spring, the through hole is arranged on the left side of the limiting seat, the right side of the inverter main body is connected with heat dissipation fins, and the outer surface of the heat dissipation fins is connected with a sealing ring, and heat dissipation holes are distributed on the outer side of the sealing ring.

Further, the right side of shell body is equipped with the ventilation hole, and the inboard in ventilation hole is connected with first dust screen, the installation piece is installed at the top of first dust screen, and the inner chamber of installation piece is equipped with accomodates the groove, the inner chamber of accomodating the groove is equipped with reset spring, and reset spring's top is connected with the fixture block, the outside distribution of fixture block has the draw-in groove, the bottom left side of fixture block is connected with the driving lever, the right side of installation piece is equipped with the spout.

Further, the right side of the heat dissipation frame is provided with a first heat dissipation notch, the inner side of the first heat dissipation notch is connected with a heat dissipation grid, the two ends of the heat dissipation frame are provided with second heat dissipation notches, a second dustproof net is installed in the inner cavity of each second heat dissipation notch, and the inner side of each second dustproof net is connected with a heat dissipation fan.

Furthermore, the ejector rod is connected with the guide rod in a sliding mode through the moving block, and the moving block is symmetrically distributed along the transverse center line of the ejector rod.

Furthermore, the diameter size of the outer side of each guide rod is matched with the diameter size of the inner side of each moving block, and the guide rods are distributed in a parallel mode.

Furthermore, the radiating fins are distributed on the right side of the inverter main body at equal intervals, and are distributed in a parallel shape.

Furthermore, the diameter size of the outer side of the clamping block is matched with the diameter size of the inner side of the clamping groove, and the clamping block is connected with the mounting block in a sliding mode through a return spring.

The utility model provides a photovoltaic inverter with insulation resistance detection function, which has the following beneficial effects: the photovoltaic inverter with the insulation impedance detection function adopts the mutual matching of the mechanisms, so that the heat dissipation effect of the whole device can be improved, the phenomenon that the normal operation of the device is influenced by more heat generated during the operation of the device to cause damage of internal electrical elements can be prevented, the dustproof effect of the whole device can be improved, external dust is effectively prevented from entering the device to cause weathering damage of parts in the device to influence the service life of the whole device, and the position of the inverter main body can be effectively limited by the limiting mechanism, so that the position of the internal inverter main body can be prevented from being shifted when the device is impacted by external force to further influence the subsequent normal operation of the device;

1. the inverter main body can be limited by the limiting mechanism, the inverter is fixed in the outer shell, the position of the inverter main body is prevented from being deviated, and the stability of the whole device in operation is further improved.

2. According to the utility model, through the combined use of the first dustproof net, the mounting block and the clamping block, the dustproof effect of the outer shell can be improved, more dust can be effectively prevented from entering the interior of the device, the internal inverter main body is weathered and damaged, the service life is influenced, meanwhile, the first dustproof net can be rapidly disassembled and mounted, the first dustproof net can be periodically cleaned and replaced, the first dustproof net is prevented from being used for a long time, the normal use effect of the first dustproof net is influenced, the first dustproof net is clamped into the ventilation hole, the clamping block is clamped into the clamping groove under the action of the reset spring, the first dustproof net and the outer shell are rapidly connected, and the dustproof effect of the outer shell is improved.

3. The utility model can improve the heat dissipation effect of the whole device and reduce the temperature of the device body by combining the arranged heat dissipation fins, the heat dissipation grids and the heat dissipation fan, thereby effectively preventing the normal operation of the device from causing the over-high temperature of the device to influence the normal operation and the service life of the internal structure.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a photovoltaic inverter with insulation resistance detection function according to the present invention;

FIG. 2 is an enlarged schematic view of a photovoltaic inverter with insulation resistance detection function shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a limiting mechanism of a photovoltaic inverter with insulation resistance detection function according to the present invention;

fig. 4 is a schematic diagram of an internal structure of a heat dissipation frame of a photovoltaic inverter with insulation resistance detection function according to the present invention.

In the figure: 1. an outer housing; 2. mounting grooves; 3. an inverter main body; 4. a heat dissipation frame; 5. a limiting mechanism; 501. a limiting seat; 502. a top rod; 503. a top plate; 504. a moving block; 505. a guide bar; 506. a tension spring; 507. a guide groove; 508. a through hole; 6. heat dissipation fins; 7. a seal ring; 8. heat dissipation holes; 9. a vent hole; 10. a first dust screen; 11. mounting blocks; 12. a receiving groove; 13. a return spring; 14. a clamping block; 15. a card slot; 16. a deflector rod; 17. a chute; 18. a first heat dissipation notch; 19. a heat dissipation grid; 20. a second heat sink notch; 21. a second dust screen; 22. a heat radiation fan.

Detailed Description

Referring to fig. 1 and fig. 3, the present invention provides a technical solution: a photovoltaic inverter with insulation impedance detection function comprises an outer shell 1 and a limiting mechanism 5, wherein the inner side of the outer shell 1 is provided with a mounting groove 2, the inner side of the mounting groove 2 is connected with an inverter main body 3, the right side of the outer shell 1 is connected with a heat dissipation frame 4, the limiting mechanism 5 for limiting is arranged on the left side of the heat dissipation frame 4, the limiting mechanism 5 comprises a limiting seat 501, a top rod 502, a top plate 503, a moving block 504, a guide rod 505, a telescopic spring 506, a guide groove 507 and a through hole 508, the inner cavity of the limiting seat 501 is connected with the top rod 502, the left side of the top rod 502 is connected with the top plate 503, the top rod 502 is connected with the guide rod 505 in a sliding mode through the moving block 504, the moving block 504 is symmetrically distributed along the transverse center line of the top rod 502, the moving block 504 can be driven to perform synchronous transverse movement along with the top rod 502 through the arranged top rod 502, and accordingly the top plate 503 is driven to move by the top rod 502, the two ends of the tail part of the top rod 502 are provided with a moving block 504, the inner side of the moving block 504 is connected with a guide rod 505, the diameter size of the outer side of the guide rod 505 is matched with the diameter size of the inner side of the moving block 504, the guide rods 505 are distributed in parallel, the outer surface of the guide rods 505 is connected with a telescopic spring 506, and guide grooves 507 are distributed on the outer side of the extension spring 506, a through hole 508 is arranged on the left side of the limiting seat 501, a heat radiation fin 6 is connected on the right side of the inverter main body 3, and the outer surface of the heat radiating fins 6 is connected with a sealing ring 7, the heat radiating fins 6 are distributed on the right side of the inverter main body 3 at equal intervals, the radiating fins 6 are distributed in parallel, the arranged radiating fins 6 can transfer heat generated by the working of the inverter main body 3 to the inside of the radiating frame 4, so that the subsequent heat dissipation treatment is facilitated, the radiating holes 8 are distributed on the outer side of the sealing ring 7, and the sealing performance of the radiating holes 8 can be improved by the arranged sealing ring 7;

referring to fig. 1 and 2, a vent hole 9 is formed in the right side of the outer shell 1, a first dust screen 10 is connected to the inner side of the vent hole 9, the first dust screen 10 is arranged to prevent external dust from entering the inner portion of the outer shell 1, a mounting block 11 is installed at the top of the first dust screen 10, a storage groove 12 is formed in an inner cavity of the mounting block 11, a return spring 13 is arranged in an inner cavity of the storage groove 12, a clamping block 14 is connected to the top of the return spring 13, the outer diameter of the clamping block 14 is matched with the inner diameter of the clamping groove 15, the clamping block 14 is slidably connected to the mounting block 11 through the return spring 13, a certain reverse acting force is generated when the return spring 13 is extruded and deformed, so as to provide a reverse acting force for the movement of the clamping block 14, clamping grooves 15 are distributed on the outer side of the clamping block 14, a driving lever 16 is connected to the left side of the bottom of the clamping block 14, and the driving lever 16 can drive the mounting block 11 to longitudinally move in the storage groove 12, therefore, the mounting block 11 can be connected with the outer shell 1, and a sliding groove 17 is formed in the right side of the mounting block 11;

referring to fig. 1 and 4, a first heat dissipation notch 18 is disposed on the right side of the heat dissipation frame 4, a heat dissipation grid 19 is connected to the inner side of the first heat dissipation notch 18, second heat dissipation notches 20 are disposed at two ends of the heat dissipation frame 4, and a second dust screen 21 is installed in an inner cavity of the second heat dissipation notch 20, the second dust screen 21 can effectively prevent external dust from entering the inner cavity of the heat dissipation frame 4, so as to prevent the heat dissipation fins 6 inside the heat dissipation frame 4 from being damaged due to weathering, a heat dissipation fan 22 is connected to the inner side of the second dust screen 21, and heat inside the heat dissipation frame 4 can be discharged through the heat dissipation fan 22, so as to reduce the temperature of the whole device during operation, thereby ensuring that the internal structure of the device can operate normally.

In summary, when the photovoltaic inverter with the insulation resistance detection function is used, according to the structure shown in fig. 1 and 3, firstly, the inverter main body 3 is clamped into the mounting groove 2, then the heat dissipation frame 4 is connected with the outer housing 1, after the heat dissipation frame 4 is connected with the outer housing 1, the top plate 503 is in contact with the inverter main body 3, and then moves to the right side under the action of pressure, so that the top plate 503 presses the top rod 502 connected to the right side, the top rod 502 pushes the moving block 504 to move transversely along the guide rod 505 under the pushing of the top plate 503, so that the moving block 504 transversely presses the extension spring 506, when the extension spring 506 is under the pressure, the deformation occurs, and then a reverse acting force is provided for the movement of the moving block 504, so that the top rod 502 provides a reverse acting force for the top plate 503, and the position of the inverter main body 3 can be limited, preventing the position of the inverter main body 3 from being displaced;

then according to the structure shown in fig. 1 and fig. 2, when the first dust-proof net 10 needs to be connected with the outer shell 1, the fixture block 14 is pressed down by the deflector rod 16, so that the fixture block 14 presses the return spring 13 downwards, the return spring 13 is deformed to generate a reverse acting force, when the fixture block 14 receives the downward acting force, the fixture block 14 contracts into the accommodating groove 12, then the first dust-proof net 10 is clamped into the ventilation hole 9, after the first dust-proof net 10 is clamped into the ventilation hole 9, the deflector rod 16 is released, after the deflector rod 16 is released, the pressure which is not provided by the return spring 13 rebounds, so that the fixture block 14 is driven to move back, so that the fixture block 14 can be clamped into the clamping groove 15, so as to connect the first dust-proof net 10 with the outer shell 1, and when the first dust-proof net 10 needs to be detached, the deflector rod 16 is pressed downwards in the same way, the latch 14 is retracted into the receiving groove 12;

finally, according to the structure shown in fig. 1 and fig. 4, when the inverter main body 3 generates more heat during operation, the heat is generated inside the heat dissipation frame 4 through the arranged heat dissipation fins 6, then the heat dissipation fan 22 is started, the fan is generated through the rotation of the heat dissipation fan 22, and further the generated heat is output to the outside of the heat dissipation frame 4 through the second heat dissipation notch 20, so that the heat inside the heat dissipation frame 4 is reduced, the second dust screen 21 arranged during the operation of the heat dissipation fan 22 can effectively prevent external dust from entering the inside of the heat dissipation frame 4 through the second heat dissipation notch 20, so that the internal heat dissipation fins 6 are weathered and damaged, and part of the residual heat is discharged through the arranged first heat dissipation notch 18, so that the stability of the temperature of the whole device during operation can be ensured.

Claims

1. The photovoltaic inverter with the insulation impedance detection function is characterized by comprising an outer shell (1) and a limiting mechanism (5), wherein an installation groove (2) is formed in the inner side of the outer shell (1), an inverter main body (3) is connected to the inner side of the installation groove (2), a heat dissipation frame (4) is connected to the right side of the outer shell (1), the limiting mechanism (5) used for limiting is installed on the left side of the heat dissipation frame (4), the limiting mechanism (5) comprises a limiting seat (501), a push rod (502), a top plate (503), a moving block (504), a guide rod (505), a telescopic spring (506), a guide groove (507) and a through hole (508), the inner cavity of the limiting seat (501) is connected with the push rod (502), the left side of the push rod (502) is connected with the top plate (503), and the moving blocks (504) are installed at two ends of the tail of the push rod (502), and the inboard of movable block (504) is connected with guide bar (505), the surface of guide bar (505) is connected with expanding spring (506), and the outside distribution of expanding spring (506) has guide way (507), the left side of spacing seat (501) is equipped with through-hole (508), the right side of inverter main part (3) is connected with heat radiation fins (6), and the surface of heat radiation fins (6) is connected with sealing washer (7), the outside distribution of sealing washer (7) has louvre (8).

2. The photovoltaic inverter with the insulation resistance detection function according to claim 1, wherein a vent hole (9) is formed in the right side of the outer shell (1), a first dust screen (10) is connected to the inner side of the vent hole (9), a mounting block (11) is installed at the top of the first dust screen (10), a containing groove (12) is formed in the inner cavity of the mounting block (11), a return spring (13) is arranged in the inner cavity of the containing groove (12), a clamping block (14) is connected to the top of the return spring (13), clamping grooves (15) are distributed in the outer side of the clamping block (14), a driving lever (16) is connected to the left side of the bottom of the clamping block (14), and a sliding groove (17) is formed in the right side of the mounting block (11).

3. The photovoltaic inverter with the insulation resistance detection function according to claim 1, wherein a first heat dissipation notch (18) is formed in the right side of the heat dissipation frame (4), a heat dissipation grid (19) is connected to the inner side of the first heat dissipation notch (18), second heat dissipation notches (20) are formed in two ends of the heat dissipation frame (4), a second dust screen (21) is installed in an inner cavity of each second heat dissipation notch (20), and a heat dissipation fan (22) is connected to the inner side of each second dust screen (21).

4. The photovoltaic inverter with the insulation resistance detection function according to claim 1, wherein the top rods (502) are slidably connected with the guide rods (505) through moving blocks (504), and the moving blocks (504) are symmetrically distributed along the transverse center line of the top rods (502).

5. The inverter according to claim 1, wherein the outside diameter of the guide rods (505) is adapted to the inside diameter of the moving block (504), and the guide rods (505) are arranged in parallel.

6. The pv inverter with insulation resistance detection function according to claim 1, wherein the heat dissipation fins (6) are equally distributed on the right side of the inverter body (3), and the heat dissipation fins (6) are distributed in parallel.

7. The photovoltaic inverter with the insulation resistance detection function according to claim 2, wherein the outside diameter of the latch (14) is matched with the inside diameter of the slot (15), and the latch (14) is slidably connected with the mounting block (11) through the return spring (13).