Photovoltaic connector

Abstract

The utility model relates to a photovoltaic connector, and belongs to the technical field of photovoltaic equipment, the photovoltaic connector comprises a protective shell and a photovoltaic module installed on the protective shell, and the protective shell is provided with an arrangement through hole for connecting cables at the two ends of the photovoltaic module to pass through; the connecting cable is provided with a locking fastener in a locking mode, and the protective shell is provided with a locking groove which is used for arranging the locking fastener and limiting the locking fastener from moving in the length direction of the connecting cable. According to the photovoltaic connector, the probability that the connecting cable and the circuit board are loosened due to the fact that the connecting cable is pulled by external factors is reduced, and the pulling resistance of the cables at the two ends of the photovoltaic connector is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic devices, in particular to a photovoltaic connector. BACKGROUND

[0002] The photovoltaic connector is a key component for connecting solar panels and other components (such as inverters and controllers) in a solar photovoltaic system. The main function of the photovoltaic connector is to ensure stable transmission of current, while also needing to have weather resistance, corrosion resistance, and reliable mechanical properties. The photovoltaic connector usually includes a mounting shell (connector protective sleeve) and a photovoltaic assembly mounted on the mounting shell.

[0003] The Chinese utility model patent with the authorized publication number CN221226665U discloses a connector protective sleeve, which includes an upper shell and a lower shell that are spliced together and form a cavity. The two ends of the cavity are provided with groove positions for the connection cables to pass through, and sealing units are arranged at the groove positions, thereby helping to improve the waterproof and dustproof capabilities of the above-mentioned connector protective sleeve. When the above-mentioned connector protective sleeve is assembled into a photovoltaic connector, the connection cables at both ends of the photovoltaic assembly will extend to the outside of the connector protective sleeve through the groove positions.

[0004] For the above-mentioned prior art, the inventors have found that when external factors pull the connection cables of the above-mentioned photovoltaic connector, the connection cables at both ends of the photovoltaic assembly are prone to disengaging from the circuit board inside the photovoltaic assembly, affecting the connection stability of the photovoltaic connector. UTILITY MODEL CONTENT

[0005] In order to improve the anti-pulling ability of the cables at both ends of the photovoltaic connector, the present application provides a photovoltaic connector.

[0006] The photovoltaic connector provided by the present application adopts the following technical solution:

[0007] A photovoltaic connector includes a protective shell and a photovoltaic assembly mounted on the protective shell. The protective shell has a through hole for the connection cables at both ends of the photovoltaic assembly to pass through. The connection cables are locked with a locking buckle, and the protective shell has a locking groove for arranging the locking buckle and limiting the movement of the locking buckle along the length direction of the connection cable.

[0008] By adopting the technical scheme, after the photovoltaic module is installed into the protective shell, the locking buckle is installed at the connecting cable at both ends of the photovoltaic module, and the locking buckle is arranged in the locking groove of the protective shell, so that the locking buckle and the connecting cable are locked, and the locking buckle is limited in the locking groove, so that when the connecting cable is pulled by external factors, the connecting cable is not easy to move axially, thereby reducing the probability that the connecting cable and the circuit board are loosened due to the pulling of the connecting cable by external factors, that is, the anti-pulling ability of the cables at both ends of the photovoltaic connector is improved.

[0009] Optionally, both ends of the locking buckle are provided with locking planes; and the inner wall of the locking groove has clamping planes for abutting the locking planes.

[0010] By adopting the technical scheme, the cooperation of the locking planes at both ends of the locking buckle and the clamping planes of the clamping groove makes the locking buckle not only not easy to move axially but also not easy to move in the width direction of the protective shell, thereby further improving the anti-pulling ability of the cables at both ends of the photovoltaic connector.

[0011] Optionally, the locking buckle comprises a clamping ring having an arrangement opening, a first locking part connected to one end of the clamping ring, and a second locking part connected to the other end of the clamping ring and in clamping cooperation with the first locking part; and the clamping ring has an arrangement hole for the connecting cable to pass through.

[0012] By adopting the technical scheme, the structure of the locking buckle is disclosed. When the locking buckle is installed, the connecting cable is first placed into the clamping ring through the arrangement opening of the clamping ring, and then the clamping cooperation of the first locking part and the second locking part shrinks the hole diameter of the arrangement hole, so that the locking buckle tightly holds the connecting cable, thereby realizing the locking of the locking buckle and the connecting cable.

[0013] Optionally, the first locking part has a locking plug post extending towards the second locking part; the second locking part has a locking plug slot for the locking plug post to insert into; and an anti-extraction structure is further arranged between the locking plug post and the locking plug slot; and the anti-extraction structure comprises a first clamping tooth structure arranged on the locking plug post and a second clamping tooth structure arranged on the inner wall of the locking plug slot and cooperating with the first clamping tooth structure.

[0014] By adopting the technical scheme, the clamping structure of the first locking part and the second locking part is disclosed. When the first locking part and the second locking part are clamped, the locking plug post of the first locking part is inserted into the locking plug slot of the second locking part, and the anti-extraction structure therebetween reduces the probability that the locking plug post is extracted from the locking plug slot.

[0015] Optionally, the first clamping tooth structure is arranged on both upper and lower sides of the locking plug post.

[0016] By adopting the technical scheme, the first clamping tooth structure is arranged on the upper and lower sides of the locking column, which helps to improve the anti-disengagement effect of the anti-disengagement structure and further reduces the probability of disengagement of the locking column from the locking slot.

[0017] Optionally, the clamping ring is provided with a locking flange abutting the connecting cable at one end provided with the first locking part, and the clamping ring is provided with a clamping arc surface at one end provided with the second locking part for abutting the locking flange.

[0018] By adopting the technical scheme, the locking flange and the clamping arc surface are arranged to help the clamping ring to be locked on the connecting cable, and when the first locking part and the second locking part are clamped, the locking flange abuts on the clamping arc surface, avoiding the connecting cable from being disengaged from the clamping ring.

[0019] Optionally, the first locking part has a locking column and is provided with a plurality of sets of ratchet structures on the outer side wall of the locking column along the length direction; and the second locking part has a locking through hole for the locking column to pass through.

[0020] By adopting the technical scheme, another clamping structure of the first locking part and the second locking part is disclosed, and when the first locking part and the second locking part are clamped, the locking column is inserted into the locking through hole, and the ratchet structures on the locking column cooperate with the outer edge of the locking through hole, so that the locking column can only be inserted into the locking through hole, and it is difficult to disengage from the locking through hole in the reverse direction.

[0021] Optionally, the two ends of the protective shell are provided with extension parts, the locking slot is arranged in the extension part, and the extension part has an arc-shaped supporting groove for supporting the connecting cable.

[0022] By adopting the technical scheme, the arc-shaped supporting groove is a avoiding groove structure, which avoids the connecting cable to be placed on the extension part, and reduces the probability of bending of the connecting cable.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. A photovoltaic connector comprising a protective shell and a photovoltaic assembly, by arranging a locking buckle on the connecting cable of the photovoltaic assembly, and arranging a locking slot in the protective shell to limit the movement of the locking buckle, thereby reducing the probability of disengagement of the connecting cable and the circuit board due to external factors pulling the connecting cable, i.e. improving the anti-pulling ability of the photovoltaic connector at both ends of the cable;

[0025] 2. By setting the locking plane on the locking buckle and the clamping plane on the inner wall of the clamping groove, the locking buckle is not only not easy to move axially and not easy to move in the width direction of the protective shell, further improving the anti-pulling ability of the cables at both ends of the photovoltaic connector;

[0026] 3. By setting the locking plug on the first locking part, setting the locking slot on the second locking part, and setting the anti-extraction structure between the locking plug and the locking slot, the probability of the locking plug being extracted from the locking slot is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of a photovoltaic connector in Embodiment 1 of the present application.

[0028] Figure 2 is an exploded schematic diagram of the photovoltaic connector in Embodiment 1 of the present application.

[0029] Figure 3 is a structural schematic diagram of a locking buckle in Embodiment 1 of the present application.

[0030] Figure 4 is a front view of the locking buckle in Embodiment 1 of the present application.

[0031] Figure 5 is a cross-sectional schematic diagram of the locking buckle at the locking column in Embodiment 2 of the present application.

[0032] BRIEF DESCRIPTION OF DRAWINGS: 1, protective shell; 11, arrangement through hole; 111, first half hole structure; 112, second half hole structure; 2, upper shell; 21, clamping head; 3, lower shell; 32, clamping hole; 33, extension; 34, locking slot; 341, clamping plane; 35, arc-shaped support slot; 4, photovoltaic module; 41, connecting cable; 5, locking buckle; 51, locking plane; 52, clamping ring; 521, arrangement opening; 522, arrangement hole; 523, locking flange; 524, clamping arc surface; 53, first locking part; 531, locking plug; 54, second locking part; 541, locking slot; 55, first protrusion; 551, first guide inclined surface; 552, first locking surface; 56, second protrusion; 561, second guide inclined surface; 562, second locking surface; 57, locking column; 571, ratchet structure; 572, guide cone surface; 573, locking bottom surface; 58, locking through hole. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying Figures 1-5 The present application will be further described in detail.

[0034] Embodiments of the present application disclose a photovoltaic connector.

[0035] Embodiment 1

[0036] Referring to Figure 1 and Figure 2 , the photovoltaic connector comprises a protective shell 1 and a photovoltaic assembly 4 mounted on the protective shell 1. The protective shell 1 comprises an upper shell 2 and a lower shell 3. The upper shell 2 and the lower shell 3 are connected and matched through a buckle structure. After the upper shell 2 and the lower shell 3 are matched, an installation cavity for arranging the photovoltaic assembly 4 is formed. The buckle structure comprises a plurality of clamping joints 21 arranged on the outer side wall of the upper shell 2 and a clamping hole 32 opened in the lower shell 3 and matched with the clamping joints 21 one by one.

[0037] Referring to Figure 1 and Figure 2 , the photovoltaic assembly 4 has two connection cables 41 at both ends. The two connection cables 41 are coaxially arranged. The protective shell 1 has an arrangement through hole 11 for the connection cable 41 to pass through, wherein the arrangement through hole 11 comprises a first half hole structure 111 arranged on the upper shell 2 and a second half hole structure 112 arranged on the lower shell 3.

[0038] Referring to Figure 1 and Figure 2 , the lower shell 3 is provided with an extension 33 at both ends, and a locking groove 34 penetrating the upper and lower surfaces is opened at the extension 33. The locking groove 34 is a square through groove structure, and the width direction of the locking groove 34 is parallel to the length direction of the connection cable 41, and the two sides of the locking groove 34 in the length direction of the connection cable 41 are clamping planes 341. The locking groove 34 and the arrangement through hole 11 are connected, so that the connection cable 41 passes out of the installation cavity through the arrangement through hole 11 and directly enters the locking groove 34. The extension 33 is further provided with an arc-shaped support groove 35 for supporting the connection cable 41 on the side of the locking groove 34 away from the arrangement through hole 11. The bottom surface of the arc-shaped support groove 35 is in close contact with the outer wall of the connection cable 41.

[0039] Referring to Figure 1 and Figure 3 , the photovoltaic connector is provided with a locking buckle 5 for locking the connection cable 41. The locking buckle 5 can be locked in the locking groove 34 of the protective shell 1, so as to limit the movement of the connection cable 41 relative to the protective shell 1, thereby reducing the probability of loosening / detaching of the connection cable 41 from the photovoltaic assembly 4 under external pulling force.

[0040] Referring to Figure 1 and Figure 3 , the two end faces of the locking buckle 5 are parallel locking planes 51, and the thickness of the locking buckle 5 is consistent with the width of the locking groove 34, so that after the locking buckle 5 is arranged in the locking groove 34, the locking planes 51 can be in close contact with the corresponding clamping planes 341.

[0041] Referring to Figure 1 , Figure 3 andFigure 4 The locking buckle 5 is made of plastic material and has elasticity. The locking buckle 5 comprises a clamping ring 52 provided with an arrangement opening 521, a first locking portion 53 connected to one end of the clamping ring 52, and a second locking portion 54 connected to the other end of the clamping ring 52 and used for clamping cooperation with the first locking portion 53. The clamping ring 52 is provided with an arrangement hole 522 for the connecting cable 41 to pass through. The first locking portion 53 is provided with a locking insertion column 531 extending towards the second locking portion 54, and the second locking portion 54 is provided with a locking insertion slot 541 for the locking insertion column 531 to insert into. The locking insertion column 531 is in a long strip structure. The shape of the locking insertion slot 541 is matched with the shape of the locking insertion column 531, and the locking insertion slot 541 penetrates through the two end faces of the second locking portion 54.

[0042] Referring to Figure 3 and Figure 4 , a anti-falling structure is arranged between the locking insertion column 531 and the locking insertion slot 541, so that the locking insertion column 531 is not easy to fall off from the locking insertion slot 541 after being inserted into the locking insertion slot 541. The anti-falling structure comprises a first clamping tooth structure arranged on the locking insertion column 531 and a second clamping tooth structure arranged on the inner wall of the locking insertion slot 541 and matched with the first clamping tooth structure. In the embodiment, the first clamping tooth structure is arranged on the upper and lower sides of the locking insertion column 531, and the second clamping tooth structure is arranged on the upper and lower sides of the locking insertion slot 541.

[0043] Referring to Figure 3 , Figure 4 , the first clamping tooth structure comprises a plurality of first protruding teeth 55 arranged at intervals along the length direction of the locking insertion column 531. The first protruding teeth 55 comprise a first guide inclined surface 551 and a first locking surface 552. The first guide inclined surface 551 is arranged obliquely on the side close to the locking insertion slot 541, and the first locking surface 552 is perpendicular to the outer wall of the locking insertion column 531. The second clamping tooth structure comprises a plurality of second protruding teeth 56 arranged at intervals along the length direction of the inner wall of the locking insertion slot 541. The second protruding teeth 56 comprise a second guide inclined surface 561 and a second locking surface 562. The second guide inclined surface 561 is arranged obliquely on the side close to the locking insertion column 531, and the second locking surface 562 is perpendicular to the inner wall of the locking insertion slot 541.

[0044] Referring to Figure 1 , Figure 3 and Figure 4 , the clamping ring 52 is provided with a locking flange 523 abutting against the connecting cable 41 at the end provided with the first locking portion 53. The clamping ring 52 is provided with a clamping arc surface 524 for the locking flange 523 to abut against at the end provided with the second locking portion 54, so that the inner diameter of the clamping ring 52 gradually decreases when the locking insertion column 531 is inserted into the locking insertion slot 541, and the locking flange 523 can abut against the clamping arc surface 524, so that the connecting cable 41 can always be kept in the clamping ring 52.

[0045] The implementation principle of a photovoltaic connector in this application embodiment is as follows: Since a locking fastener 5 is locked on the connecting cable 41 and the locking fastener 5 is locked in the locking groove 34 of the protective shell 1, when the connecting cable 41 is pulled by an external force, the connecting cable 41 will drive the protective shell 1 to move together, reducing the situation where the connecting cable 41 moves relative to the protective shell 1, thereby reducing the probability of the connecting cable 41 and the circuit board becoming loose due to external factors pulling the connecting cable, that is, improving the tensile strength of the cables at both ends of the photovoltaic connector.

[0046] Example 2

[0047] Except for the structure of the locking fastener 5, which differs from that in Embodiment 1, the photovoltaic connector in this embodiment is identical in all other aspects to the photovoltaic connector in Embodiment 1.

[0048] Reference Figure 1 and Figure 5 The locking fastener 5 is made of plastic and is elastic. The locking fastener 5 includes a snap-fit ​​ring 52 with an opening 521, a first locking portion 53 connected to one end of the snap-fit ​​ring 52, and a second locking portion 54 connected to the other end of the snap-fit ​​ring 52 and used for engaging with the first locking portion 53. The first locking portion 53 has a locking post 57, and multiple sets of ratchet structures 571 are provided along the length of the outer side wall of the locking post 57. The ratchet structure 571 includes a guide cone surface 572 and a locking bottom surface 573. The guide cone surface 572 is arranged on the side near the second locking portion 54 and is inclined, while the locking bottom surface 573 is perpendicular to the outer side wall of the locking post 57. The second locking portion 54 has a locking through hole 58 for the locking post 57 to pass through. After the locking pin 57 of the first locking part 53 is inserted into the locking through hole of the second locking part 54, the locking bottom surface 573 of the ratchet structure 571 will abut against the side of the second locking part 54 facing away from the first locking part 53, thereby realizing the locking engagement between the first locking part 53 and the second locking part 54.

[0049] The snap ring 52 has a locking flange 523 at one end where the first locking part 53 is located, which fits the connecting cable 41. The snap ring 52 has a locking arc surface 524 at one end where the second locking part 54 is located, which is used for the locking flange 523 to abut against. This is so that when the locking pin 531 is inserted into the locking slot 541, the inner diameter of the snap ring 52 gradually decreases, and the locking flange 523 can abut against the locking arc surface 524, so that the connecting cable 41 can always be kept inside the snap ring 52.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A photovoltaic connector comprising a protective housing (1) and a photovoltaic module (4) mounted to said protective housing (1), said protective housing (1) having a through hole (11) for passage of connecting cables (41) for both ends of said photovoltaic module (4); characterized in that, The connecting cable (41) is locked with a locking buckle (5), and the protective shell (1) has a locking groove (34) for arranging the locking buckle (5) and limiting the locking buckle (5) from moving along the length direction of the connecting cable (41).

2. A photovoltaic connector according to claim 1, wherein, Both ends of the locking buckle (5) are provided with locking planes (51), and the inner wall of the locking groove (34) has clamping planes (341) for abutting the locking planes (51).

3. A photovoltaic connector according to claim 2, wherein, The locking buckle (5) comprises a clamping ring (52) provided with an arranging opening (521), a first locking part (53) connected to one end of the clamping ring (52), and a second locking part (54) connected to the other end of the clamping ring (52) and clamped with the first locking part (53), and the clamping ring (52) has an arranging hole (522) for the connecting cable (41) to pass through.

4. A photovoltaic connector according to claim 3, wherein, The first locking part (53) has a locking plug column (531) extending towards the second locking part (54), the second locking part (54) has a locking plug groove (541) for the locking plug column (531) to insert, and the locking plug column (531) and the locking plug groove (541) are further provided with anti-disengagement structures, and the anti-disengagement structures comprise first clamping tooth structures arranged on the locking plug column (531) and second clamping tooth structures arranged on the inner wall of the locking plug groove (541) and matched with the first clamping tooth structures.

5. A photovoltaic connector according to claim 4, wherein, The first clamping tooth structures are arranged on the upper and lower sides of the locking plug column (531).

6. A photovoltaic connector according to claim 3, wherein, The clamping ring (52) is provided with a locking turnup (523) abutting the connecting cable (41) at the end provided with the first locking part (53), and the clamping ring (52) has a clamping camber (524) for the locking turnup (523) to abut at the end provided with the second locking part (54).

7. A photovoltaic connector according to claim 3, wherein, The first locking part (53) has a locking column (57) and a plurality of sets of ratchet structures (571) arranged on the outer side wall of the locking column (57) along the length direction, and the second locking part (54) has a locking through hole (58) for the locking column (57) to pass through.

8. A photovoltaic connector according to claim 1, wherein, Both ends of the protective shell (1) are provided with extension parts (33), the locking groove (34) is arranged in the extension part (33), and the extension part (33) has an arc-shaped supporting groove (35) for supporting the connecting cable (41).

Images