Photovoltaic panel junction box

Abstract

The utility model relates to the technical field of photovoltaic accessories, and provides a photovoltaic panel junction box which comprises a box body, a mounting seat and a sealing element, the box body is provided with a containing groove and a first access port, the diameter of the containing groove is larger than that of the first access port, the mounting seat is provided with a second access port, and the sealing element is mounted on the mounting seat; when the mounting seat is mounted on the box body, the first access port and the second access port are spliced and communicated with each other to form an access port, and the sealing piece is propped against the interior of the accommodating groove; and the inner diameter of the sealing element is gradually reduced from one side close to the access port to one side far away from the access port. On the basis, the cable can be conveniently inserted into the junction box.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic accessories, and in particular to a photovoltaic panel junction box. Background Art

[0002] In solar photovoltaic panels, the photovoltaic panel junction box is an important part of the solar cell module. The photovoltaic junction box includes an integrated photovoltaic panel junction box and a split photovoltaic panel junction box. The photovoltaic panel junction box has a core component diode inside, and the two ends of the diode need to be connected with cables to form a complete circuit.

[0003] In some applications, the diode is disposed inside the photovoltaic panel junction box. When connecting the cable, the cable needs to be inserted into the photovoltaic panel junction box to form an electrical connection with the internal diode.

[0004] When the cable is in use, both ends of the cable are in a stripped state. Therefore, how to make the cable easily pass into the photovoltaic panel junction box is a problem that needs to be solved. Utility Model Content

[0005] In order to facilitate the insertion of cables into a photovoltaic panel junction box, the present application provides a photovoltaic panel junction box.

[0006] The present application provides a photovoltaic panel junction box, which adopts the following technical solution:

[0007] A photovoltaic panel junction box comprises a box body, a mounting seat and a sealing member, wherein the box body is provided with a receiving groove and a first access port, the diameter of the receiving groove is larger than the diameter of the first access port, the mounting seat is provided with a second access port, and the sealing member is mounted on the mounting seat; when the mounting seat is mounted on the box body, the first access port and the second access port are spliced ​​and interpenetrated to form an access port, and the sealing member abuts against the receiving groove; the inner diameter of the sealing member gradually decreases from a side close to the access port to a side away from the access port.

[0008] By adopting the above technical solution, when the cable needs to be inserted, the cable is inserted from the access port and then into the box body through the sealing member. Since the inner diameter of the sealing member gradually decreases from the side close to the access port to the side far from the access port, it can guide the insertion of the cable, so that the cable can be easily inserted into the box body.

[0009] Optionally, a limiting member is provided on a side of the mounting seat away from the second access port, and one side of the sealing member abuts against the limiting member.

[0010] By adopting the above technical solution, the installation position of the seal can be more accurate and the installation of the seal can also be more stable.

[0011] Optionally, both sides of the box body are provided with snap-in grooves, and both sides of the mounting seat are connected with snap-in blocks; when the mounting seat is installed on the box body, the snap-in blocks are snapped into the snap-in grooves.

[0012] By adopting the above technical solution, the mounting seat can be conveniently fixed to the box body, and the alignment of the mounting seat and the box body can be better ensured, so that the installation position of the seal can be more accurate and better guide the cable.

[0013] Optionally, the mounting base and the box body are fixed by welding.

[0014] By adopting the above technical solution, the sealing between the mounting seat and the box body can be better ensured, and the sealing member can also guide the cable more stably.

[0015] Optionally, the mounting seat is connected to an insert, and the box body is provided with an insert slot, and when the mounting seat is installed on the box body, the insert slot is inserted into the insert slot.

[0016] By adopting the above technical solution, through the cooperation between the insert and the insertion groove, the installation position of the mounting seat and the box body can be better guided and limited, so that the installation position between the mounting seat and the box body can be more accurate, and the connection stability between the two can also be increased.

[0017] Optionally, two metal brackets and a diode are further included, wherein the metal bracket is arranged inside the box body, and two ends of the diode are respectively connected to the metal brackets.

[0018] By adopting the above technical solution, electrical conduction between the two ends of the diode is achieved through the connection between the metal bracket and the diode.

[0019] Optionally, the metal bracket is recessed to form a recessed portion.

[0020] By adopting the above technical solution, the provision of the recessed portion can improve the welding yield between the cable and the metal bracket.

[0021] Optionally, the metal bracket is provided with a clearance hole.

[0022] By adopting the above technical solution, the opening of the relief hole can better ensure the penetration of the sealant when pouring the sealant, thereby increasing the flow rate of the sealant.

[0023] Optionally, it also includes a support column, which is connected to the box body, and the metal bracket is provided with a through hole, and the metal bracket is bent on a side away from the through hole to form a supporting portion; when the metal bracket is installed, the through hole of the metal bracket passes through the support column, the metal bracket abuts against the support column, and the supporting portion abuts against the bottom wall of the box body.

[0024] By adopting the above technical solution, the metal bracket can be stably installed in the box body, ensuring the flatness of the metal bracket while retaining a large area welding platform, which can facilitate the welding operation of the cable.

[0025] Optionally, at least two support columns are arranged in the box body.

[0026] By adopting the above technical solution, the metal bracket can be supported more stably, so that the metal bracket can be more stable.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When the cable needs to be inserted, the cable is inserted from the access port and then into the box body through the seal. Since the inner diameter of the seal gradually decreases from the side close to the access port to the side far from the access port, it can guide the insertion of the cable, so that the cable can be easily inserted into the box body;

[0029] 2. It makes it easy to fix the mounting base to the box body, and can also better ensure the alignment of the mounting base and the box body, so that the installation position of the seal can be more accurate and better guide the cable;

[0030] 3. It can better ensure the sealing between the mounting base and the box body, and also enable the seal to guide the cable more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is an exploded schematic diagram of a photovoltaic panel junction box according to an embodiment of the present application;

[0032] Figure 2 It is a cross-sectional schematic diagram showing the cooperation between the box body, the sealing member and the mounting seat in the photovoltaic panel junction box of the embodiment of the present application;

[0033] Figure 3 This is a schematic diagram of the structure of the photovoltaic panel junction box in the embodiment of the present application, which shows the cooperation between the box body and the mounting seat;

[0034] Figure 4 It is a cross-sectional schematic diagram showing the cooperation between the box body and the mounting seat in the photovoltaic panel junction box of the embodiment of the present application;

[0035] Figure 5It is a schematic diagram of the structure of the interior of the photovoltaic panel junction box in the embodiment of the present application.

[0036] Figure numerals: 1. box body; 2. mounting seat; 3. sealing member; 4. receiving groove; 5. access port; 51. first access port; 52. second access port; 7. snap-in groove; 8. snap-in block; 9. limit member; 10. insert member; 11. insert groove; 12. metal bracket; 13. diode; 14. recessed portion; 15. tin block; 16. clearance hole; 17. support column; 18. through hole. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-5 This application is described in further detail.

[0038] The present application embodiment discloses a photovoltaic panel junction box. Figure 1 The photovoltaic panel junction box includes a box body 1, a mounting seat 2 and a sealing member 3. In this embodiment, the sealing member 3 is a cylindrical structure.

[0039] Reference Figure 2 The box body 1 is provided with a receiving groove 4 and a first access port 51. The receiving groove 4 is used to receive the upper half of the seal 3. The first access port 51 is used to insert the cable. The diameter of the receiving groove 4 is larger than the diameter of the first access port 51, so that when the seal 3 is received in the receiving groove 4, the inside of the seal 3 and the first access port 51 are connected to each other.

[0040] The mounting seat 2 is provided with a second access port 52, which is used for the insertion of cables; the sealing member 3 is mounted on the mounting seat 2, and the lower half of the sealing member 3 in this embodiment is placed in the mounting seat 2; when the mounting seat 2 is mounted on the box body 1, the first access port 51 and the second access port 52 are spliced ​​and interpenetrated to form an access port 5, so that the cables can be inserted through the access port 5; the sealing member 3 abuts against the accommodating groove 4, that is, the outer wall of the upper half of the sealing member 3 abuts against the wall of the box body 1 corresponding to the accommodating groove 4; the inner diameter of the sealing member 3 gradually decreases from the side close to the access port 5 to the side away from the access port 5, so that after the cables are inserted into the access port 5, the sealing member 3 can guide the cables, so that the cables can be easily inserted into the box body 1. At the same time, since the sealing member 3 abuts against the box body 1 and the mounting seat 2, it can also play a certain sealing role.

[0041] In some embodiments, a limiting member 9 is provided on one side of the mounting seat 2 away from the second access port 52. The upper end surface of the limiting member 9 in this embodiment is an arc-shaped structure, so that the cable can be better positioned. The limiting member 9 is integrally formed with the mounting seat 2. One side of the sealing member 3 abuts against the limiting member 9, so that the installation of the sealing member 3 is more stable and the installation position is more accurate.

[0042] Reference Figure 3In some embodiments, both sides of the box body 1 are provided with a snap-in groove 7, and both sides of the mounting seat 2 are connected with a snap-in block 8. In this embodiment, the snap-in block 8 and the mounting seat 2 are provided in an integrated manner. When the mounting seat 2 is installed on the box body 1, the snap-in block 8 is snapped into the snap-in groove 7, that is, the snap-in block 8 and the wall surface of the box body 1 corresponding to the snap-in groove 7 are snap-into each other. So that the mounting seat 2 and the box body 1 can be conveniently fixed.

[0043] In some embodiments, the mounting base 2 is fixed to the box body 1 by welding. In this embodiment, the outer bottom wall of the mounting base 2 is fixed to the outer bottom wall of the box body 1 by ultrasonic welding, so as to better ensure the sealing between the mounting base 2 and the box body 1.

[0044] Reference Figure 4 In some embodiments, the mounting seat 2 is connected with an insert 10, and the insert 10 is used to guide the installation between the mounting seat 2 and the box body 1. In this embodiment, the insert 10 and the mounting seat 2 are fixed by integral molding. The box body 1 is provided with an insertion slot 11, and the shape of the insertion slot 11 is set corresponding to the shape of the insert 10, that is, the insert 10 can be fully or partially inserted into the insertion slot 11. In this embodiment, the insert 10 can be fully inserted into the insertion slot 11. When the mounting seat 2 is installed on the box body 1, the insert 10 is inserted into the insertion slot 11, so that the installation position of the mounting seat 2 and the box body 1 is limited, so that the installation position between the mounting seat 2 and the box body 1 can be more accurate. At the same time, due to the friction between the insert 10 and the wall of the box body 1 corresponding to the insertion slot 11, the mounting seat 2 can be more stably installed on the box body 1.

[0045] Reference Figure 5 In some embodiments, the photovoltaic panel junction box further includes two metal brackets 12 and a diode 13. The metal bracket 12 is used to achieve electrical conduction between the diode 13 and the cable. In this embodiment, the metal bracket 12 is made of copper. In other embodiments, other conductive metals can be used as needed. The metal bracket 12 is arranged inside the box body 1, and the two ends of the diode 13 are respectively connected to the metal bracket 12. The electrical conduction of the diode 13 is achieved through the metal bracket 12.

[0046] In some embodiments, the metal bracket 12 is recessed to form a recessed portion 14. In this embodiment, two recessed portions 14 are provided for each metal bracket 12, and in other embodiments, the recessed portions 14 may be provided according to actual needs. The provision of the recessed portions 14 can improve the welding yield rate of laser welding between the cable and the metal bracket 12. In this embodiment, a tin block 15 is laser welded on the metal bracket 12, and in other embodiments, the tin block 15 may not be provided on the metal bracket 12.

[0047] In some embodiments, the metal bracket 12 is provided with a clearance hole 16, and one, two or more clearance holes 16 can be provided according to actual needs. The provision of the clearance hole 16 can better ensure that the sealant can penetrate smoothly when pouring the sealant, and can increase the flow rate of the sealant.

[0048] In some embodiments, the photovoltaic panel junction box further includes a support column 17, which is connected to the box body 1. In this embodiment, the support column 17 is integrally formed with the box body 1. A through hole 18 is provided on the metal bracket 12, which is used to cooperate with the support column 17. The side of the metal bracket 12 away from the through hole 18 is bent 90° to form a support portion; when the metal bracket 12 is installed, the through hole 18 of the metal bracket 12 passes through the support column 17, the metal bracket 12 abuts against the support column 17, and the support portion abuts against the inner bottom wall of the box body 1. The support portion and the support column 17 support the metal bracket 12, so that the metal bracket 12 can ensure a better horizontal state, so that a larger area can be reserved for welding the cable, so that the welding operation of the cable can be facilitated.

[0049] In some embodiments, at least two support columns 17 are provided in the box body 1. In this embodiment, two support columns 17 are provided, and two through holes 18 are provided along the metal bracket 12 near both ends, corresponding to the two support columns 17 respectively, so that the metal bracket 12 can be supported more stably in cooperation with the support portion, so that the metal bracket 12 can be more stable. In other embodiments, one or more support columns 17 can be provided as needed.

[0050] The implementation principle of a photovoltaic panel junction box in an embodiment of the present application is as follows: when it is necessary to insert a cable, the cable is inserted from the access port 5 and then into the box body 1 through the seal 3. Since the inner diameter of the seal 3 gradually decreases from the side close to the access port 5 to the side away from the access port 5, it can guide the insertion of the cable, so that the cable can be easily inserted into the box body 1.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic panel junction box, characterized in that: The invention comprises a box body (1), a mounting seat (2) and a sealing member (3); the box body (1) is provided with a receiving groove (4) and a first access port (51); the diameter of the receiving groove (4) is larger than the diameter of the first access port (51); the mounting seat (2) is provided with a second access port (52); the sealing member (3) is mounted on the mounting seat (2); when the mounting seat (2) is mounted on the box body (1), the first access port (51) and the second access port (52) are spliced ​​and interpenetrated to form an access port (5); the sealing member (3) abuts against the inside of the receiving groove (4); the inner diameter of the sealing member (3) gradually decreases from a side close to the access port (5) to a side away from the access port (5).

2. A photovoltaic panel junction box according to claim 1, characterized in that: A limiting member (9) is provided on a side of the mounting seat (2) away from the second access port (52), and one side of the sealing member (3) abuts against the limiting member (9).

3. A photovoltaic panel junction box according to claim 1, characterized in that: Both sides of the box body (1) are provided with snap-fit ​​grooves (7), and both sides of the mounting seat (2) are connected with snap-fit ​​blocks (8); when the mounting seat (2) is mounted on the box body (1), the snap-fit ​​blocks (8) are snapped into the snap-fit ​​grooves (7).

4. A photovoltaic panel junction box according to claim 1 or 3, characterized in that: The mounting seat (2) and the box body (1) are fixed by welding.

5. The photovoltaic panel junction box according to claim 1, characterized in that: The mounting seat (2) is connected to an insert (10), and the box body (1) is provided with an insert slot (11); when the mounting seat (2) is mounted on the box body (1), the insert (10) is inserted into the insert slot (11).

6. A photovoltaic panel junction box according to claim 1, characterized in that: It also comprises two metal brackets (12) and a diode (13), wherein the metal bracket (12) is arranged inside the box body (1), and two ends of the diode (13) are respectively connected to the metal bracket (12).

7. A photovoltaic panel junction box according to claim 6, characterized in that: The metal bracket (12) is recessed to form a recessed portion (14).

8. A photovoltaic panel junction box according to claim 6, characterized in that: The metal bracket (12) is provided with a clearance hole (16).

9. A photovoltaic panel junction box according to claim 6, characterized in that: It also comprises a support column (17), wherein the support column (17) is connected to the box body (1), the metal bracket (12) is provided with a through hole (18), and the side of the metal bracket (12) away from the through hole (18) is bent to form a support portion; when the metal bracket (12) is installed, the through hole (18) of the metal bracket (12) passes through the support column (17), the metal bracket (12) abuts against the support column (17), and the support portion abuts against the inner bottom wall of the box body (1).

10. A photovoltaic panel junction box according to claim 9, characterized in that: At least two support columns (17) are arranged in the box body (1).

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