Connecting structure applied to photovoltaic junction box and photovoltaic junction box

Abstract

The invention relates to the technical field of electrical connection, and discloses a connection structure applied to a photovoltaic junction box, which comprises a junction box body, a junction box closing cover, an electrode plate, a junction port, and a wire stripping assembly and a protection assembly which are arranged in the junction box body, and is characterized in that the junction box closing cover is arranged at the top of the junction box body; the wiring ports are symmetrically and fixedly communicated with the side wall of the junction box body, and the electrode plates are symmetrically mounted in the junction box body; through the elastic sliding of the special-shaped push plates in the wiring port, the plurality of special-shaped push plates can effectively fix photovoltaic cables with different diameters, the adaptability of the equipment to different cables is improved, and through the wire cutting knives and the wire stripping plates fixed in the special-shaped push plates, the wire stripping efficiency is improved. After the photovoltaic cable is inserted into the special-shaped push plate, the sheath can be segmented and separated from the internal tinned copper wire, so that a worker does not need to manually strip the cable when inserting the photovoltaic cable into the junction box body, and the wiring efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connection, and particularly to a connection structure applied to a photovoltaic junction box and a photovoltaic junction box. Background Art

[0002] Under the background of the rapid development of the current photovoltaic industry, as a key component for connecting photovoltaic modules to an external circuit, the performance of a photovoltaic junction box directly affects the safety and stability of the entire photovoltaic system.

[0003] Existing junction boxes often require workers to manually strip the outer sheath of photovoltaic cables, expose the internal tinned copper conductors and then make connections. This manual wire stripping method is not only inefficient, but also prone to damaging the internal conductors during the wire stripping process if the operation is improper, resulting in a decline in electrical conductivity and affecting the power generation efficiency and reliability of the photovoltaic system.

[0004] The diameters of photovoltaic cables of different specifications vary. It is difficult for existing junction boxes to effectively adapt to and firmly fix cables of various specifications. During long-term use, affected by environmental factors, the cables are prone to loosening, displacement, etc., resulting in poor contact at the connection part, increasing resistance, generating heat and causing potential safety hazards such as fires.

[0005] During the connection process between a photovoltaic cable and the internal electrode plate of a junction box, workers need to directly contact the internal conductive layer of the junction box during operation. If the operator is working with electricity, there is a risk of electric shock; the existing closing structure design of the junction box cannot provide effective safety protection for workers during the connection process, making it difficult to ensure the personal safety of operators and the stable operation of equipment.

[0006] Therefore, a connection structure applied to a photovoltaic junction box and a photovoltaic junction box are proposed. Summary of the Invention

[0007] The purpose of the present invention is to provide a connection structure applied to a photovoltaic junction box and a photovoltaic junction box to solve the problems raised in the above background art.

[0008] To achieve the above object, the present invention provides the following technical solution: a connection structure applied to a photovoltaic junction box, including a junction box body, a junction box cover, electrode plates, connection ports, and a wire stripping component and a protection component arranged inside the junction box body. The junction box cover is installed on the top of the junction box body. The connection ports are symmetrically and fixedly communicated with the side walls of the junction box body. The electrode plates are symmetrically installed inside the junction box body. The wire stripping component includes a toothed ring symmetrically and rotatably connected to the inner wall of the junction box body. The inner wall of the toothed ring is fixedly connected with inclined blocks in an annular array distribution. The inner wall of the junction box body is fixedly connected with fixing plates in an annular array distribution centered on the toothed ring. A sliding rod is slidably connected to the inside of each fixing plate. A lead plate is fixedly connected to the side of the sliding rod away from the fixing plate. A second spring is fixedly connected between the lead plate and the fixing plate. The second springs are all sleeved on the outer wall of the sliding rod. A special-shaped push plate is fixedly connected to the outer wall of each lead plate. A wire cutting knife is fixedly connected to the middle of the inner wall of each lead plate. A wire stripping plate is fixedly connected to the side of the inner wall of the lead plate away from the inner wall of the junction box body. The inner wall of the junction box body is symmetrically slidably connected with toothed rods. A hydraulic expansion rod is fixedly connected to the bottom of each toothed rod. The hydraulic expansion rods are all installed at the bottom of the inner cavity of the junction box body.

[0009] Preferably, the inclined block abuts against the outer wall of the special-shaped push plate. The special-shaped push plate is in a slope shape on the outer wall of the lead plate. There is a gap between the lead plates. The side of the lead plate close to the connection port is in an inclined plane. The side of the wire cutting knife close to the connection port is an inclined plane and is sharp. The side of the wire stripping plate close to the connection port is in a slope shape. The height of the wire stripping plate is equal to that of the wire cutting knife. The second spring is in a compressed state when the outer wall of the lead plate fits with the inner wall of the connection port.

[0010] Preferably, the outer wall of the toothed ring meshes with the toothed rod. The hydraulic expansion rod is in a compressed state when the top of the toothed rod fits with the junction box cover.

[0011] Preferably, the inside of the junction box body includes a protection component. The protection component includes fixed wire plates symmetrically slidably connected to the inside of the junction box body. The electrode plates are located at the bottom of the fixed wire plates. Rubber rings are fixedly connected to the inner walls of the fixed wire plates. Baffles are symmetrically and slidably connected to the inside of the fixed wire plates centered on the electrode plates. Magnetic plates are symmetrically and fixedly connected to the inside of the fixed wire plates. The opposite sides of the magnetic plates and the baffles are coated with magnetic coatings with the same magnetic poles. A gear is rotatably connected to the middle of the inner cavity of the junction box body. A toothed plate is fixedly connected to the bottom of the junction box cover. Turntables are fixedly connected to both ends of the gear. The fixed wire plates are all slidably connected to the outer walls of the turntables. Sector plates are fixedly connected to the upper surfaces of the electrode plates.

[0012] Preferably, the rubber ring is in the shape of an inverted tooth, the bottom of the baffle is a slope, and when the wire fixing plate does not slide down, the two baffles inside the wire fixing plate are affected by the repulsive force between the magnetic plate and its magnetic coating, and the opposite sides of the two wire fixing plates are in contact.

[0013] Preferably, the wire fixing plates are eccentrically rotatably connected to the outer wall of the turntable. When the wire fixing plate is at the low point of the side wall of the turntable, the wire fixing plate slides to the bottom of the junction box body, and the inclined surface at the bottom of the baffle abuts against the upper surface of the electrode plate.

[0014] Another object of the present invention is to provide a photovoltaic junction box. A fastening component is provided between the junction box body and the junction box cover. The fastening component includes a hinge fixedly connected to the outer wall of the junction box body. One side of the hinge away from the junction box body is fixedly connected with a sliding plate. The sliding plate is slidably connected to the inside of the junction box cover. A first spring is fixedly connected between the sliding plate and the inner wall of the junction box cover in a linear array distribution. Clamping rods are symmetrically fixedly connected to the side wall of the junction box cover, and clamping plates are symmetrically fixedly connected to the side wall of the junction box body.

[0015] Preferably, a spherical slot is formed in the clamping plate. When the junction box cover slides on the outer wall of the sliding plate and the electrode plate elastically contracts, the clamping rod can slide out of the inside of the clamping plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Through the elastic sliding of the special-shaped push plate inside the wiring port, multiple special-shaped push plates can effectively fix photovoltaic cables with different diameters, improving the adaptability of the device to different cables. Through the cutting knife and stripping plate fixed inside the special-shaped push plate, the sheath can be divided and separated from the internal tinned copper wire after the photovoltaic cable is inserted into the special-shaped push plate, so that the staff does not need to manually strip the wire when inserting the photovoltaic cable into the junction box body, improving the wiring efficiency. Through the extrusion of the toothed rod when the junction box cover is closed, the distance between the lead plates is shortened by the inclined block when the toothed ring rotates, so that the lead plates can clamp the photovoltaic cable, so that the staff does not need to manually adjust the tightness of the wiring port, reducing the work difficulty of the staff;

[0018] 2. Through the elastic extension of the first spring after the junction box cover is turned over and closed, the junction box cover slides on the top of the junction box body, so that the photovoltaic cable pre-inserted into the junction box body is no longer blocked by the baffle and is connected to the electrode plate. When the staff connects the photovoltaic cable, it can effectively avoid contact with the conductive layer part inside the junction box body. Through the sliding of the junction box cover on the top of the junction box body, it provides the staff with time to disconnect from the device, improving the safety of the device when connecting the photovoltaic cable. Description of the Drawings

[0019] Figure 1 Schematic three-dimensional view of the overall structure of the present invention;

[0020] Figure 2 Exploded view of the structure of the fastening component of the present invention;

[0021] Figure 3 Schematic cross-sectional view of the overall structure of the present invention;

[0022] Figure 4 Schematic cross-sectional view of the structure of the wire stripping component of the present invention;

[0023] Figure 5 Exploded front view of the structure of the wire stripping component of the present invention;

[0024] Figure 6 Exploded side view of the structure of the wire stripping component of the present invention;

[0025] Figure 7 Schematic partial cross-sectional view of the structure of the junction box body of the present invention;

[0026] Figure 8 Internal partial schematic view of the structure of the junction box body of the present invention;

[0027] Figure 9 Schematic partial cross-sectional view of the structure of the protection component of the present invention;

[0028] Figure 10 For the present invention Figure 9 Enlarged schematic view of the structure at position A.

[0029] In the figure:

[0030] 1. Junction box body; 2. Junction box cover; 3. Electrode plate; 4. Wiring port; 5. Fastening component; 6. Wire stripping component; 7. Protection component;

[0031] 51. Hinge; 52. Slide plate; 53. First spring; 54. Clamping rod; 55. Clamping plate;

[0032] 61. Tooth ring; 62. Inclined block; 63. Fixed plate; 64. Slide rod; 65. Second spring; 66. Lead plate; 67. Special-shaped push plate; 68. Wire cutting knife; 69. Wire stripping plate; 610. Tooth rod; 611. Hydraulic telescopic rod;

[0033] 71. Wire fixing plate; 72. Rubber ring; 73. Baffle; 74. Magnetic plate; 75. Gear; 76. Rack; 77. Turntable; 78. Sector plate. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0035] Embodiments of the present invention

[0036] Please refer to Figures 1 to 6 , a connection structure applied to a photovoltaic junction box, including a junction box body 1, a junction box cover 2, electrode plates 3, connection ports 4, and a wire stripping assembly 6 and a protection assembly 7 arranged inside the junction box body 1. The junction box cover 2 is installed on the top of the junction box body 1. The connection ports 4 are symmetrically and fixedly communicated with the side walls of the junction box body 1. The electrode plates 3 are symmetrically installed inside the junction box body 1. The wire stripping assembly 6 includes a toothed ring 61 symmetrically and rotatably connected to the inner wall of the junction box body 1. The inner wall of the toothed ring 61 is fixedly connected with inclined blocks 62 in an annular array distribution. The inner wall of the junction box body 1 is fixedly connected with fixing plates 63 in an annular array distribution centered on the toothed ring 61. Sliding rods 64 are slidably connected inside the fixing plates 63. The sides of the sliding rods 64 away from the fixing plates 63 are fixedly connected with lead plates 66. Second springs 65 are fixedly connected between the lead plates 66 and the fixing plates 63. The second springs 65 are sleeved on the outer walls of the sliding rods 64. The outer walls of the lead plates 66 are fixedly connected with special-shaped pushing plates 67. The middle parts of the inner walls of the lead plates 66 are fixedly connected with wire cutting knives 68. The sides of the lead plates 66 away from the inner wall of the junction box body 1 are fixedly connected with wire stripping plates 69. The inner walls of the junction box body 1 are symmetrically slidably connected with toothed rods 610. The bottoms of the toothed rods 610 are fixedly connected with hydraulic telescopic rods 611. The hydraulic telescopic rods 611 are installed at the bottom of the inner cavity of the junction box body 1.

[0037] The inclined blocks 62 are in contact with the outer walls of the special-shaped pushing plates 67. The special-shaped pushing plates 67 are in a slope shape on the outer walls of the lead plates 66. There is a gap between the lead plates 66. The sides of the lead plates 66 close to the connection ports 4 are inclined. The sides of the wire cutting knives 68 close to the connection ports 4 are inclined and sharp. The sides of the wire stripping plates 69 close to the connection ports 4 are in a slope shape. The height of the wire stripping plates 69 is equal to that of the wire cutting knives 68. When the outer walls of the lead plates 66 are in contact with the inner walls of the connection ports 4, the second springs 65 are in a compressed state.

[0038] The outer wall of the toothed ring 61 is meshed with the toothed rods 610. When the tops of the toothed rods 610 are in contact with the junction box cover 2, the hydraulic telescopic rods 611 are in a compressed state.

[0039] In actual operation of this embodiment: Before use, the staff opens the cover 2 of the junction box. Then, the photovoltaic cable is inserted into the interior of the wiring port 4. After the photovoltaic cable is inserted into the interior of the wiring port 4, it will squeeze the inclined surface of the lead plate 66, causing the lead plate 66 to drive the slide bar 64 to slide inside the fixed plate 63. At the same time, the second spring 65 is squeezed and elastically contracts. When the photovoltaic cable is inserted into the interior of the wiring port 4, the outer wall of the photovoltaic cable is completely attached to the inner wall of the lead plate 66. Then, the staff continues to insert the photovoltaic cable into the interior of the junction box body 1. The sheath outside the photovoltaic cable will be separated under the cutting of multiple wire cutting knives 68. As the photovoltaic cable continues to be inserted into the interior of the junction box body 1, the separated photovoltaic cable will continue to squeeze the inclined surface of the wire stripping plate 69, causing the separated sheath to be separated from the tinned copper conductor inside the photovoltaic cable under the extrusion of the inclined surface of the wire stripping plate 69. Thus, after the photovoltaic cable is inserted into the interior of the junction box body 1, the sheath outside the photovoltaic cable will peel off and expose the internal tinned copper conductor, facilitating the connection work of the photovoltaic cable inside the junction box body 1;

[0040] When the connection of the photovoltaic cable inside the junction box body 1 is completed, the staff closes the cover 2 of the junction box. When the cover 2 of the junction box is closed, it will squeeze the rack 610. The hydraulic telescopic rod 611 at the bottom of the rack 610 is squeezed and contracts. The rack 610 will slide downward on the inner wall of the junction box body 1. When the rack 610 slides downward, it drives the engaged gear ring 61 to rotate. When the gear ring 61 rotates, it drives the inclined block 62 on its inner wall to slide on the outer wall of the special-shaped push plate 67. During the process of the inclined block 62 sliding on the outer wall of the special-shaped push plate 67, it will squeeze the special-shaped push plate 67 due to the spiral shape of the special-shaped push plate 67, thereby driving multiple lead plates 66 to gather together. After the lead plates 66 gather together, they will clamp and limit the photovoltaic cable inside the wiring port 4, so that after the cover 2 of the junction box is closed, the wire stripping assembly 6 will prevent the photovoltaic cable from moving inside the junction box body 1.

[0041] Through the elastic sliding of the special-shaped push plate 67 inside the wiring port 4, multiple special-shaped push plates 67 can effectively fix photovoltaic cables with different diameters, improving the adaptability of the device to different cables. Through the wire cutting knives 68 and wire stripping plates 69 fixed inside the special-shaped push plate 67, the sheath can be divided and separated from the internal tinned copper conductor after the photovoltaic cable is inserted into the special-shaped push plate 67, enabling the staff to insert the photovoltaic cable into the interior of the junction box body 1 without manual wire stripping, improving the wiring efficiency. Through the extrusion of the rack 610 when the cover 2 of the junction box is closed, the distance between the lead plates 66 is shortened through the inclined block 62 when the gear ring 61 rotates, so that the lead plates 66 can clamp the photovoltaic cable, enabling the staff to adjust the tightness of the wiring port 4 without manual operation and reducing the work difficulty of the staff.

[0042] Please refer to Figures 7 to 10, inside the junction box body 1, there is a protection component 7. The protection component 7 includes a wire fixing plate 71 symmetrically and slidably connected inside the junction box body 1. The electrode plate 3 is located at the bottom of the wire fixing plate 71. Rubber rings 72 are fixedly connected to the inner walls of the wire fixing plate 71. Inside the wire fixing plate 71, there are baffles 73 symmetrically and slidably connected with the electrode plate 3 as the center. Magnet plates 74 are symmetrically and fixedly connected inside the wire fixing plate 71. Magnetic coatings with the same magnetic poles are coated on the opposite sides of the magnet plates 74 and the baffles 73. In the middle of the inner cavity of the junction box body 1, there is a gear 75 rotatably connected. At the bottom of the junction box cover 2, there is a toothed plate 76 fixedly connected. At both ends of the gear 75, there are turntables 77 fixedly connected. The wire fixing plates 71 are all slidably connected to the outer walls of the turntables 77. Sector plates 78 are fixedly connected to the upper surfaces of the electrode plates 3.

[0043] The rubber rings 72 are in the shape of inverted teeth, and the bottom of the baffle 73 is a slope. When the wire fixing plate 71 does not slide downward, the two baffles 73 inside the wire fixing plate 71 are affected by the repulsive force of the magnet plates 74 and their magnetic coatings, and the opposite sides of the two wire fixing plates 71 are in contact.

[0044] The wire fixing plates 71 are all eccentrically and rotatably connected to the outer walls of the turntables 77. When the wire fixing plate 71 is at the low point of the side wall of the turntable 77, the wire fixing plate 71 slides to the bottom of the junction box body 1, and the slope at the bottom of the baffle 73 abuts against the upper surface of the electrode plate 3.

[0045] In actual operation of this embodiment: After the photovoltaic cable is inserted into the junction box body 1, it will be blocked by the baffle 73 and limited between the wire fixing plate 71 and the baffle 73. When the junction box cover 2 slides after closing on the junction box body 1, the sliding of the junction box cover 2 will drive the toothed plate 76 to slide together. After the toothed plate 76 slides, it will drive the gear 75 meshed with it to rotate. During the rotation of the gear 75, the turntables 77 on both sides will be driven to rotate together. When the turntable 77 rotates, it will drive the wire fixing plate 71 sliding on its outer wall to move downward. During the downward movement of the wire fixing plate 71, the slope at the bottom of the baffle 73 will squeeze the electrode plate 3. After the slope at the bottom of the baffle 73 is squeezed, the baffle 73 will slide toward the side close to the magnet plate 74. After the two baffles 73 slide relative to each other, they no longer block the photovoltaic cable. During the downward movement of the wire fixing plate 71, the photovoltaic cable is squeezed by the wire fixing plate 71 and fits and connects with the electrode plate 3. The rubber rings 72 on the inner walls of the wire fixing plate 71 clamp and limit the photovoltaic cable, so that the photovoltaic cable is tightly connected to the electrode plate 3.

[0046] Please refer to Figure 1 and Figure 2The present invention also relates to a photovoltaic junction box, wherein a snap-fit ​​assembly 5 is arranged between a junction box body 1 and a junction box cover 2, the snap-fit ​​assembly 5 comprises a hinge 51 fixedly connected to the outer wall of the junction box body 1, a slide plate 52 is fixedly connected to the side of the hinge 51 away from the junction box body 1, the slide plate 52 is slidably connected to the inside of the junction box cover 2, a first spring 53 is fixedly connected to the slide plate 52 and the inner wall of the junction box cover 2 in a linear array, a clamping rod 54 is symmetrically fixedly connected to the side wall of the junction box cover 2, and a clamping plate 55 is symmetrically fixedly connected to the side wall of the junction box body 1.

[0047] A spherical slot is provided on the clamping plate 55 , and the junction box cover 2 slides on the outer wall of the slide plate 52 to elastically contract the electrode sheet 3 so that the clamping rod 54 can slide out from the inside of the clamping plate 55 .

[0048] In actual use of this embodiment: when in use, a staff member pushes the junction box cover 2 on the top of the junction box body 1 toward the direction close to the hinge 51, and the junction box cover 2 slides on the outer wall of the slide plate 52 on the junction box body 1. At the same time, the shortening of the distance between the junction box cover 2 and the slide plate 52 causes the first spring 53 therebetween to be squeezed and elastically contracted. When the clamping rod 54 on the junction box cover 2 is vertically aligned with the spherical slot on the clamping plate 55, the staff member flips the junction box cover 2 upward around the hinge 51, and the clamping rod 54 can slide upward from the inside of the clamping plate 55, so that the junction box cover 2 is flipped open on the junction box body 1;

[0049] When the photovoltaic cable is inserted, the staff flips over and closes the junction box cover 2, and then stops pushing the junction box cover 2 toward the hinge 51 and starts working. The junction box cover 2 will slide away from the hinge 51 under the elastic extension of the first spring 53. The junction box cover 2 slides on the outer wall of the slide plate 52, which will drive the tooth plate 76 to move together. After the tooth plate 76 moves, it will drive it to rotate by meshing with the gear 75, and the photovoltaic cable will be freed from the obstruction of the baffle 73 and connected to the electrode sheet 3.

[0050] After the junction box cover 2 is flipped and closed, the elastic extension of the first spring 53 causes the junction box cover 2 to slide on the top of the junction box body 1, so that the photovoltaic cable pre-inserted into the junction box body 1 is no longer blocked by the baffle 73 and is connected to the electrode sheet 3, so that the staff can effectively avoid contact with the conductive layer inside the junction box body 1 when connecting the photovoltaic cable. The sliding of the junction box cover 2 on the top of the junction box body 1 provides the staff with time to break away from the equipment, thereby improving the safety of the equipment when connecting the photovoltaic cable.

[0051] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0052] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure applied to a photovoltaic junction box, comprising a junction box body (1), a junction box cover (2), an electrode plate (3), a wiring port (4), and a wire stripping assembly (6) and a protection assembly (7) arranged inside the junction box body (1), characterized in that: The cover (2) of the junction box is installed on the top of the junction box body (1). The wiring ports (4) are symmetrically and fixedly connected to the side walls of the junction box body (1). The electrode plates (3) are symmetrically installed inside the junction box body (1). The wire stripping assembly (6) includes gear rings (61) that are symmetrically and rotatably connected to the inner wall of the junction box body (1). The inner wall of the gear ring (61) is fixedly connected with inclined blocks (62) distributed in an annular array. The inner wall of the junction box body (1) is fixedly connected with fixing plates (63) distributed in an annular array centered on the gear ring (61). A slide bar (64) is slidably connected to the inside of each fixing plate (63). A lead plate (66) is fixedly connected to the side of the slide bar (64) away from the fixing plate (63). A second spring (65) is fixedly connected between the lead plate (66) and the fixing plate (63). The second spring (65) is sleeved on the outer wall of the slide bar (64). A special-shaped push plate (67) is fixedly connected to the outer wall of the lead plate (66). A wire cutting knife (68) is fixedly connected to the middle of the inner wall of the lead plate (66). A wire stripping plate (69) is fixedly connected to the side of the inner wall of the lead plate (66) away from the inner wall of the junction box body (1). The inner wall of the junction box body (1) is symmetrically slidably connected with gear rods (610). A hydraulic telescopic rod (611) is fixedly connected to the bottom of each gear rod (610). The hydraulic telescopic rods (611) are installed at the bottom of the inner cavity of the junction box body (1).

2. The connection structure applied to a photovoltaic junction box according to claim 1, characterized in that: The inclined block (62) abuts against the outer wall of the special-shaped push plate (67). The special-shaped push plate (67) is in a slope shape on the outer wall of the lead plate (66). There is a gap between the lead plates (66). The side of the lead plate (66) close to the wiring port (4) is beveled. The side of the wire cutting knife (68) close to the wiring port (4) is beveled and sharp. The side of the wire stripping plate (69) close to the wiring port (4) is in a slope shape. The height of the wire stripping plate (69) is equal to that of the wire cutting knife (68). The second spring (65) is in a compressed state when the outer wall of the lead plate (66) fits with the inner wall of the wiring port (4).

3. A connection structure applied to a photovoltaic junction box according to claim 1, characterized in that: The outer wall of the gear ring (61) meshes with the gear rod (610). The hydraulic telescopic rod (611) is in a compressed state when the top of the gear rod (610) fits with the cover (2) of the junction box.

4. The connection structure applied to a photovoltaic junction box according to claim 1, characterized in that: The junction box body (1) includes a protection component (7) inside, the protection component (7) includes a wire fixing plate (71) symmetrically slidably connected to the inside of the junction box body (1), the electrode sheet (3) is located at the bottom of the wire fixing plate (71), the inner wall of the wire fixing plate (71) is fixedly connected with a rubber ring (72), the inside of the wire fixing plate (71) is symmetrically slidably connected with a baffle (73) with the electrode sheet (3) as the center, and the inside of the wire fixing plate (71) is symmetrically fixedly connected with a magnetic The plate (74) is provided with a magnetic coating having the same magnetic poles on opposite sides of the magnetic plate (74) and the baffle (73); a gear (75) is rotatably connected to the middle of the inner cavity of the junction box body (1); a toothed plate (76) is fixedly connected to the bottom of the junction box cover (2); both ends of the gear (75) are fixedly connected to a turntable (77); the wire fixing plates (71) are slidably connected to the outer wall of the turntable (77); and the upper surface of the electrode sheet (3) is fixedly connected to a fan-shaped plate (78).

5. The connection structure applied to a photovoltaic junction box according to claim 4, characterized in that: The rubber ring (72) is in the shape of an inverted tooth, and the bottom of the baffle (73) is an inclined surface. When the wire fixing plate (71) does not slide downward, the two baffles (73) inside the wire fixing plate (71) are affected by the repulsive effect of the magnetic plate (74) and its magnetic coating, and the two opposite sides of the wire fixing plates (71) are in contact with each other.

6. The connection structure for a photovoltaic junction box according to claim 4, characterized in that: The wire fixing plates (71) are eccentrically rotatably connected to the outer wall of the rotating disk (77). When the wire fixing plates (71) are located at the lower point of the side wall of the rotating disk (77), the wire fixing plates (71) slide to the bottom of the junction box body (1), and the bottom inclined surface of the baffle (73) contacts the upper surface of the electrode sheet (3).

7. A photovoltaic junction box, the photovoltaic junction box comprising a connection structure applied to a photovoltaic junction box according to any one of claims 1 to 6, characterized in that: A snap-fit ​​assembly (5) is provided between the junction box body (1) and the junction box cover (2), the snap-fit ​​assembly (5) comprising a hinge (51) fixedly connected to the outer wall of the junction box body (1), a slide plate (52) fixedly connected to the side of the hinge (51) away from the junction box body (1), the slide plate (52) slidably connected to the inside of the junction box cover (2), first springs (53) are fixedly connected in a linear array between the slide plate (52) and the inner wall of the junction box cover (2), a clamping rod (54) is symmetrically fixedly connected to the side wall of the junction box cover (2), and a clamping plate (55) is symmetrically fixedly connected to the side wall of the junction box body (1).

8. A photovoltaic junction box according to claim 7, characterized in that: The clamping plate (55) is provided with a spherical slot, and the junction box cover (2) slides on the outer wall of the slide plate (52) to elastically contract the electrode sheet (3), so that the clamping rod (54) can slide out from the inside of the clamping plate (55).

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