Compact type photovoltaic junction box structure resistant to water vapor erosion

Abstract

The utility model relates to the technical field of photovoltaic junction boxes, and discloses a compact type photovoltaic junction box structure resistant to water vapor erosion, which solves the problem that the existing photovoltaic junction box is poor in water vapor erosion resistance, and comprises a box body and a cover body, the cover body is connected to the top end of the box body, one side of the box body is fixedly provided with a plurality of threading pipes I, and the threading pipes I are fixedly connected with the box body. A plurality of second threading pipes are fixedly arranged on the other side of the box body, an annular edge groove is formed in the side edge of the top end of the box body, a first sealing ring is arranged at the bottom end in the annular edge groove, an annular groove is formed in the top end of the inner side wall of the box body, a second sealing ring is arranged in the annular groove, and a first clamping ring and a second clamping ring are fixedly arranged on the side edge of the bottom end of the cover body. The first clamping ring is inserted into the annular edge groove in a penetrating mode and matched with the first sealing ring, and the second clamping ring is inserted into the inner side edge of the box body in a penetrating mode and matched with the second sealing ring. Through the photovoltaic junction box, the water vapor erosion resistance can be improved, the use safety is further improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic junction boxes, in particular to a compact photovoltaic junction box structure resistant to water vapor erosion. Background Art

[0002] A junction box is required during the use of photovoltaic panels. The junction box is a box device that protects and connects wires. Photovoltaic junction boxes are usually used outdoors, so they need to be resistant to water vapor erosion and dust erosion to improve the safety and service life of the photovoltaic junction box. However, existing photovoltaic junction boxes usually have the disadvantage of poor sealing, which leads to poor resistance to water vapor erosion and dust erosion. Therefore, the present application improves the existing photovoltaic junction boxes and proposes a compact, water vapor erosion-resistant photovoltaic junction box structure. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a compact photovoltaic junction box structure resistant to water vapor erosion, which effectively solves the problem that the existing photovoltaic junction box has poor water vapor erosion resistance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a compact photovoltaic junction box structure resistant to water vapor erosion, comprising a box body and a cover body, the cover body being connected to the top of the box body, a plurality of wire threading tubes 1 being fixedly arranged on one side of the box body, a plurality of wire threading tubes 2 being fixedly arranged on the other side of the box body, an annular edge groove being provided on the side edge of the top of the box body, a sealing ring 1 being provided on the bottom end of the annular edge groove, an annular groove being provided on the top of the inner wall of the box body, a sealing ring 2 being provided on the inside of the annular groove, a clamping ring 1 and a clamping ring 2 being fixedly arranged on the side edge of the bottom end of the cover body, the clamping ring 1 being inserted into the inside of the annular edge groove and matching the sealing ring 1, the clamping ring 2 being inserted into the inner side edge of the box body and matching the sealing ring 2.

[0005] Preferably, a sealing gasket 1 and a sealing gasket 2 matching the cover body are provided on the side edges of the top end of the box body.

[0006] Preferably, bolt mounting seats 1 are fixedly provided at both ends of the side of the box body, and bolt mounting seats 2 matching with the bolt mounting seats 1 are fixedly provided at both ends of the side of the cover body.

[0007] Preferably, a plurality of threading grooves matching the first threading tube and the second threading tube are provided at the bottom ends of both sides of the second clamping ring.

[0008] Preferably, the threading tube 1 and the threading tube 2 are an integral structure with the box body, and the clamping ring 1 and the clamping ring 2 are an integral structure with the cover body.

[0009] Preferably, the wire threading tube 1 and the wire threading tube 2 are both composed of a tube body, a rubber sealing sleeve, a limit stop ring, an extrusion end sleeve and a plurality of long screws. The tube body is fixedly connected to the side of the box body, the limit stop ring is fixedly connected to one end of the inside of the tube body, the extrusion end sleeve is connected to the other end of the tube body through a long screw, and the rubber sealing sleeve is located between the limit stop ring and the extrusion end sleeve.

[0010] Preferably, an annular inner groove is formed at one end of the inner side wall of the extrusion end sleeve, and an O-ring is arranged inside the annular inner groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) During operation, by providing the annular edge groove, the first sealing ring, the annular groove, the second sealing ring, the first clamping ring, the second clamping ring, the first sealing gasket and the second sealing gasket, four seals can be formed at the connection between the box body and the cover body, thereby achieving better resistance to water vapor erosion and dust erosion;

[0013] (2) By providing a threading tube 1 and a threading tube 2 composed of a tube body, a rubber sealing sleeve, a limit ring, an extruded end sleeve and a plurality of long screws, the sealing performance of the connection between the photovoltaic cable and the photovoltaic junction box can be improved, and the resistance to water vapor erosion and dust erosion can be further improved, thereby improving the safety of use and the service life of the photovoltaic junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 This is a schematic diagram of the structure of a compact photovoltaic junction box resistant to water vapor corrosion according to the utility model;

[0017] Figure 2 This is a schematic diagram of the box structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cover structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the second threading tube of the utility model;

[0020] In the figure: 1. box body; 2. cover body; 3. threading tube 1; 4. threading tube 2; 5. annular edge groove; 6. sealing ring 1; 7. annular groove; 8. sealing ring 2; 9. clamping ring 1; 10. clamping ring 2; 11. sealing gasket 1; 12. sealing gasket 2; 13. bolt mounting seat 1; 14. bolt mounting seat 2; 15. threading groove; 16. tube body; 17. rubber sealing sleeve; 18. limit stop ring; 19. extrusion end sleeve; 20. long screw; 21. annular inner groove; 22. O-ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Depend on Figures 1 to 3 The utility model provides a compact photovoltaic junction box structure resistant to water vapor erosion, comprising a box body 1 and a cover body 2, the cover body 2 is connected to the top of the box body 1, a plurality of threading tubes 3 are fixedly arranged on one side of the box body 1, a plurality of threading tubes 4 are fixedly arranged on the other side of the box body 1, an annular edge groove 5 is provided on the side of the top of the box body 1, a sealing ring 6 is provided at the bottom end of the annular edge groove 5, an annular groove 7 is provided on the top of the inner wall of the box body 1, a sealing ring 8 is provided inside the annular groove 7, a clamping ring 9 and a clamping ring 10 are fixedly arranged on the side of the bottom end of the cover body 2, the clamping ring 9 is inserted into the inside of the annular edge groove 5 and matches the sealing ring 6, the clamping ring 10 is inserted into the inner side of the box body 1 and matches the sealing ring 8, and a sealing gasket 11 and a sealing gasket 12 matching the cover body 2 are provided on the side of the top of the box body 1;

[0023] When in use, the clamping ring 1 9 is inserted into the annular edge groove 5, and the sealing effect is achieved by squeezing the sealing ring 1 6 through the clamping ring 1 9, and the clamping ring 2 10 is inserted into the inner side of the box body 1, and generates squeezing force on the sealing ring 1 6 to form a sealing effect, and the sealing gasket 1 11 and the sealing gasket 2 12 further improve the sealing effect, so that four seals can be formed at the connection between the box body 1 and the cover body 2, thereby improving the water vapor erosion resistance and dust erosion resistance performance;

[0024] Depend on Figures 1 to 3It is given that bolt mounting seats 13 are fixedly provided at both ends of the side of the box body 1, bolt mounting seats 14 matching the bolt mounting seats 13 are fixedly provided at both ends of the side of the cover body 2, a plurality of threading grooves 15 matching the threading tube 1 3 and the threading tube 2 4 are provided at the bottom ends of both sides of the clamping ring 2 10, the threading tube 1 3 and the threading tube 2 4 are integrated with the box body 1, and the clamping ring 1 9 and the clamping ring 2 10 are integrated with the cover body 2;

[0025] The bolt mounting seat 13 and the bolt mounting seat 2 14 can realize the connection between the box body 1 and the cover body 2. Since the bolt mounting seat 13 and the bolt mounting seat 2 14 are both arranged on the outer side, they will not communicate with the inside of the box body 1 and the cover body 2, thereby not affecting the sealing of the connection;

[0026] Depend on Figure 1 , Figure 2 and Figure 4 It is given that the threading tube 1 3 and the threading tube 2 4 are both composed of a tube body 16, a rubber sealing sleeve 17, a limit retaining ring 18, an extrusion end sleeve 19 and a plurality of long screws 20. The tube body 16 is fixedly connected to the side of the box body 1, the limit retaining ring 18 is fixedly connected to one end inside the tube body 16, and the extrusion end sleeve 19 is connected to the other end of the tube body 16 through the long screw 20. The rubber sealing sleeve 17 is located between the limit retaining ring 18 and the extrusion end sleeve 19. An annular inner groove 21 is provided at one end of the inner side wall of the extrusion end sleeve 19, and an O-type sealing ring 22 is provided inside the annular inner groove 21.

[0027] When installing the photovoltaic cable, it is inserted into the tube body 16 and the extruded end sleeve 19, and the extruded end sleeve 19 is installed by the long screw 20. The extruded end sleeve 19 and the limit ring 18 realize the extrusion and contraction of the rubber sealing sleeve 17. The rubber sealing sleeve 17 can improve the sealing of the connection, and the O-ring 22 can further improve the sealing.

[0028] During operation, by providing an annular edge groove, a sealing ring 1, an annular groove, a sealing ring 2, a clamping ring 1, a clamping ring 2, a sealing gasket 1 and a sealing gasket 2, four seals can be formed at the connection between the box body and the cover body, thereby achieving better resistance to water vapor erosion and dust erosion; by providing a threading tube 1 and a threading tube 2 composed of a tube body, a rubber sealing sleeve, a limit stop ring, an extrusion end sleeve and a number of long screws, the sealing of the connection between the photovoltaic cable and the photovoltaic junction box can be improved, and the resistance to water vapor erosion and dust erosion can be further improved, thereby improving the safety of use and the service life of the photovoltaic junction box.

Claims

1. A compact photovoltaic junction box structure resistant to water vapor corrosion, comprising a box body (1) and a cover body (2), characterized in that: The cover body (2) is connected to the top of the box body (1); a plurality of threading tubes (3) are fixedly arranged on one side of the box body (1); a plurality of threading tubes (4) are fixedly arranged on the other side of the box body (1); an annular edge groove (5) is provided on the side edge of the top of the box body (1); a sealing ring (6) is provided at the bottom end of the annular edge groove (5); an annular groove (7) is provided on the top of the inner wall of the box body (1); a sealing ring (8) is provided inside the annular groove (7); a clamping ring (9) and a clamping ring (10) are fixedly arranged on the side edge of the bottom end of the cover body (2); the clamping ring (9) is inserted into the inside of the annular edge groove (5) and matches the sealing ring (6); the clamping ring (10) is inserted into the inner side edge of the box body (1) and matches the sealing ring (8).

2. A compact photovoltaic junction box structure resistant to water vapor corrosion according to claim 1, characterized in that: The side edges of the top end of the box body (1) are provided with a sealing gasket 1 (11) and a sealing gasket 2 (12) which match the cover body (2).

3. A compact photovoltaic junction box structure resistant to water vapor corrosion according to claim 1, characterized in that: Bolt mounting seats 1 (13) are fixedly provided at both ends of the side of the box body (1), and bolt mounting seats 2 (14) matching the bolt mounting seats 1 (13) are fixedly provided at both ends of the side of the cover body (2).

4. A compact photovoltaic junction box structure resistant to water vapor corrosion according to claim 1, characterized in that: The bottom ends of both sides of the second clamping ring (10) are provided with a plurality of threading grooves (15) matching the first threading tube (3) and the second threading tube (4).

5. The compact photovoltaic junction box structure resistant to water vapor corrosion according to claim 1, characterized in that: The first threading tube (3) and the second threading tube (4) are an integral structure with the box body (1), and the first clamping ring (9) and the second clamping ring (10) are an integral structure with the cover body (2).

6. A compact photovoltaic junction box structure resistant to water vapor corrosion according to claim 1, characterized in that: The threading tube 1 (3) and the threading tube 2 (4) are both composed of a tube body (16), a rubber sealing sleeve (17), a limit stop ring (18), an extrusion end sleeve (19) and a plurality of long screws (20); the tube body (16) is fixedly connected to the side of the box body (1); the limit stop ring (18) is fixedly connected to one end inside the tube body (16); the extrusion end sleeve (19) is connected to the other end of the tube body (16) through the long screw (20); and the rubber sealing sleeve (17) is located between the limit stop ring (18) and the extrusion end sleeve (19).

7. A compact photovoltaic junction box structure resistant to water vapor corrosion according to claim 6, characterized in that: An annular inner groove (21) is formed at one end of the inner side wall of the extrusion end sleeve (19), and an O-type sealing ring (22) is arranged inside the annular inner groove (21).

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