A solar photovoltaic harness connector

Abstract

The present application relates to the technical field of wire harness connector, in particular to a solar photovoltaic wire harness connector, which comprises a male head, an elastic buckle, a female head and an abutting mechanism. The end of the elastic buckle away from the male head has an abutting surface and a contact surface; the abutting mechanism is used for keeping the abutting surface and the female head in an abutting state. The present application sets the abutting mechanism, after the insertion is completed, the elastic sheet gives the male head and the female head the force of moving away from each other, so that the elastic buckle and the female head are closely combined and abut each other, solving the problem of axial movement of the male head and the female head and the wear of the contact position caused by the axial movement, improving the connection reliability, eliminating the safety hazard, and prolonging the service life of the connector. In addition, when disassembling and maintaining, without the aid of tools, only the first sliding ring needs to be axially moved relative to the female head, so that the elastic sheet is deformed, thereby making the elastic buckle and the female head disengage from the clamping state, and the disassembly work is completed conveniently and quickly.

Description

Technical Field

[0001] This invention relates to the field of wire harness connector technology, and more specifically to a solar photovoltaic wire harness connector. Background Technology

[0002] Solar photovoltaic (PV) wiring harness connectors are key components in PV power generation systems, used to connect cables between solar panels and between panels and inverters. They are responsible for transmitting the DC power generated by the PV modules, and their reliability, safety, and durability directly affect the efficiency and operational safety of the entire power generation system. Currently, common wiring harness connectors mainly adopt a male-female plug-in structure. The core principle is based on the elastic buckle with barbs on the male connector's outer shell. When inserted into the female connector's outer shell, the elastic buckle bends under force. Once fully inserted, the elastic buckle returns to its original position, causing the barbs to engage with the corresponding locking groove on the female connector, thus achieving mechanical locking and electrical conduction. A sealing ring at the interface provides waterproofing and dustproofing.

[0003] For example, Chinese patent document CN220652482U discloses an adaptive distributed photovoltaic interface device, and Chinese patent application CN117438803A discloses a quick connector for photovoltaic products, both of which use elastic snap-fit ​​connections. However, after the connection is completed, there is still an axial gap between the male and female heads of the wire harness connectors in the above solutions and prior art. When subjected to external forces, they are prone to repeated movement, resulting in wear at the contact points. The locking force of the worn connector is affected, reliability is reduced, safety hazards are posed, and the power generation efficiency of solar photovoltaic is affected. In addition, high-frequency insertion and removal can easily cause fatigue damage to the elastic snap, shortening the service life of the connector. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention proposes a solar photovoltaic wire harness connector. This device solves the problems of axial movement of the male and female heads after connection, inconvenience of disassembly, and short service life of elastic clips due to wear in the prior art.

[0005] The solar photovoltaic wiring harness connector of the present invention adopts the following technical solution, including: The male connector has one end as the first snap-fit ​​terminal and the other end as the first wire connection terminal. An elastic buckle is fixedly connected to the first snap-fit ​​end and extends along the axial direction of the male connector; two elastic buckles are provided, and the two elastic buckles are evenly distributed along the circumference of the male connector; the end of the elastic buckle away from the male connector has an abutment surface and a contact surface; the contact surface is inclined, and the end away from the male connector is located on the inner side of the end closer to the male connector; the abutment surface is located on the side of the contact surface closer to the male connector and is perpendicular to the axis of the male connector. The female connector has a second snap-fit ​​end on one end and a second wire connection end on the other end; the first wire connection end and the second wire connection end are used to connect to the wire harness body; the second snap-fit ​​end has two slots, and the two slots correspond to two elastic buckles respectively; The abutting mechanism is used to keep the abutting surface in contact with the female head.

[0006] Optionally, the slot includes a sliding part and a snap-fit ​​part, the snap-fit ​​part being in communication with the outside; the abutment mechanism includes two spring pieces, the two spring pieces being respectively installed in the two snap-fit ​​parts, the middle part of the spring pieces being recessed towards the axis of the female head; after the female head and male head are inserted, the spring pieces abut against the elastic buckle and apply force to the elastic buckle.

[0007] Optionally, a first sliding ring is coaxially sleeved on the outer side of the second snap-fit ​​end, and the first sliding ring is slidably mounted on the female head along its own axial direction; one end of the spring piece is connected to the female head, and the other end is connected to the first sliding ring.

[0008] Optionally, the two elastic clips extend from the male head to unequal lengths, so that during the insertion process, after one elastic clip enters the locking part, the other elastic clip contacts the female head.

[0009] Optionally, the two slots are symmetrically arranged about the axis of the female connector, and the elastic buckles are slidably installed on the male connector along the axis of the male connector; the solar photovoltaic harness connector also includes an adjustment mechanism for adjusting the length of the elastic buckles extending out of the male connector, so that the two elastic buckles alternately contact the female connector first.

[0010] Optionally, the adjustment mechanism includes a friction block, a rotating rod, and two connecting rods; the rotating rod is rotatably mounted on the male end; the two connecting rods are located at the two ends of the rotating rod, and two elastic latches are hinged to the two connecting rods and located at the ends of the connecting rods away from the rotating rod; the friction block is fixedly connected to one of the sliding parts; when the elastic latch slides in the sliding part, it engages with the friction block; there is sliding resistance between the elastic latch and the male end.

[0011] Optionally, a fastening mechanism is provided on the female head, which is used to move the first sliding ring toward the spring plate when the male head and the female head move axially.

[0012] Optionally, the fastening mechanism includes a second sliding ring and a compression spring; the second sliding ring is coaxially sleeved on the second snap-fit ​​end; the first sliding ring is partially located inside the second sliding ring and partially located outside the second sliding ring; the first sliding ring is ratcheted to the female head so that when the first sliding ring moves away from the male head, it causes the spring to depress more; the second sliding ring is ratcheted to the first sliding ring so that when the second sliding ring approaches the spring, it drives the first sliding ring to move synchronously; the two ends of the compression spring abut against the first sliding ring and the second sliding ring respectively, and the compression spring causes the second sliding ring to tend to move away from the first sliding ring.

[0013] Optionally, both the first and second connection ends are equipped with knobs, and the knobs are threadedly connected to the male and female connectors.

[0014] Optionally, a sealing ring is fitted between the wire harness body and the knob.

[0015] The beneficial effects of this invention are as follows: By setting up an abutting mechanism, this invention keeps the abutting surface in contact with the female head when the male and female heads are inserted, eliminating the gap between the elastic buckle and the female head, thereby solving the problems of axial movement between the male and female heads and wear at the contact position caused by it, improving the reliability of the connector, eliminating safety hazards, and extending the service life of the connector.

[0016] Furthermore, through the cooperation of the spring and the first sliding ring, after insertion, the spring exerts a force on the male and female connectors to move away from each other, causing the elastic clip to fit tightly against the female connector and abut against each other, thus solving the problem of axial movement between the male and female connectors. When disassembling the male and female connectors for maintenance, no tools are needed; simply moving the first sliding ring axially relative to the female connector causes the spring to deform, thereby disengaging the elastic clip from the female connector and completing the disassembly work, making the operation more convenient and faster.

[0017] Furthermore, the two elastic clips extend from the male connector to unequal lengths, contacting the female connector sequentially. This reduces the deformation of the elastic clips during insertion and removal, dispersing the large, concentrated resistance encountered during insertion and removal into two continuous, smaller forces. This makes the insertion and removal process smoother and less strenuous, solving the problem of difficult insertion and removal, and reducing wear between the elastic clips and the female connector during insertion and removal. In addition, by incorporating an adjustment mechanism, the length of the elastic clips extending from the male connector is adjusted each time the connector is disassembled, allowing the two elastic clips to alternately contact the female connector first. This ensures that the wear on the two elastic clips is more consistent, further extending the connector's service life.

[0018] Furthermore, by setting a fastening mechanism, the relative axial displacement between the male and female connectors can be sensed, thereby adjusting the force applied to the male and female connectors by the spring. Even if the male and female connectors move axially, the gap between them can be quickly reduced, allowing the elastic buckle to fit tightly against the female connector, further ensuring the connection stability of the connector. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a solar photovoltaic wire harness connector according to the present invention; Figure 2 This is an exploded view of the structure of a solar photovoltaic wiring harness connector according to the present invention; Figure 3 This is a side view of a solar photovoltaic wiring harness connector according to the present invention; Figure 4 for Figure 3 Sectional view of section AA; Figure 5 for Figure 3 Sectional view of section BB; Figure 6 for Figure 4 Enlarged view at point X; Figure 7 for Figure 5 Enlarged view at point Y; Figure 8 This is a schematic diagram of the elastic snap-fit ​​state in the initial state of a solar photovoltaic wire harness connector according to the present invention; Figure 9 This is a schematic diagram showing the state of the elastic buckle during the insertion process of a solar photovoltaic wire harness connector according to the present invention.

[0021] In the picture: 100. Male connector; 110. Knob; 120. Sealing ring; 200. Elastic buckle; 210. Abutting surface; 220. Contact surface; 300, Female head; 310, Slot; 311, Sliding part; 312, Engaging part; 320, First sliding ring; 400. Abutment mechanism; 410. Spring clip; 500. Wire harness body; 600. Adjustment mechanism; 610. Friction block; 620. Rotating rod; 630. Connecting rod; 700, Fastening mechanism; 710, Second sliding ring; 720, Compression spring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 9As shown, the solar photovoltaic wiring harness connector provided by the present invention includes a male connector 100, an elastic snap 200, a female connector 300, and an abutment mechanism 400.

[0024] The male connector 100 has one end as the first snap-fit ​​terminal and the other end as the first connection terminal; The elastic buckle 200 is fixedly connected to the first snap-fit ​​end and extends along the axial direction of the male connector 100; two elastic buckles 200 are provided, and the two elastic buckles 200 are evenly distributed along the circumference of the male connector 100; the end of the elastic buckle 200 away from the male connector 100 has an abutment surface 210 and a contact surface 220; the contact surface 220 is inclined, and the end away from the male connector 100 is located on the inner side of the end close to the male connector 100; the abutment surface 210 is located on the side of the contact surface 220 close to the male connector 100 and is perpendicular to the axis of the male connector 100; One end of the female connector 300 is the second snap-fit ​​end, and the other end is the second wire connection end; the first wire connection end and the second wire connection end are used to connect the wire harness body 500; the second snap-fit ​​end has two slots 310, and the two slots 310 correspond to two elastic buckles 200 respectively. The abutting mechanism 400 is used to keep the abutting surface 210 in contact with the female head 300.

[0025] During the insertion process, the male connector 100 and the female connector 300 are roughly aligned, and the two elastic latches 200 are aligned with the two slots 310 respectively. The male connector 100 and the female connector 300 are brought closer together. The contact surface 220 first contacts the slot 310. Under the continuous axial thrust, the elastic latches 200 slide in the slots 310. During the above process, the elastic latches 200 undergo elastic deformation due to compression.

[0026] When the male connector 100 and the female connector 300 approach each other within a preset distance, the elastic latch 200 engages. At this time, the abutment mechanism 400 keeps the abutment surface 210 in contact with the female connector 300, eliminating the gap between them. This solves the problem of axial movement of the male connector 100 and the female connector 300 after insertion, avoids wear at the contact point, improves the reliability of the connector, and eliminates safety hazards.

[0027] In a further embodiment, the slot 310 includes a sliding portion 311 and a snap-fit ​​portion 312, the snap-fit ​​portion 312 being in communication with the outside; the abutment mechanism 400 includes two spring pieces 410, the two spring pieces 410 being respectively installed on the two snap-fit ​​portions 312, the middle part of the spring piece 410 being recessed toward the axis of the female head 300; after the female head 300 and the male head 100 are inserted, the spring piece 410 abuts against the elastic buckle 200 and applies a force to the elastic buckle 200.

[0028] During use, roughly align the male head 100 and the female head 300, align the two elastic latches 200 with the entrances of the two sliding portions 311 respectively, and bring the male head 100 and the female head 300 closer together. The contact surface 220 first contacts the sliding portion 311, and the continuous axial thrust pushes the elastic latches 200 into the sliding portion 311, causing the elastic latches 200 to slide within the sliding portion 311. During this process, the elastic latches 200 undergo elastic deformation due to compression.

[0029] When the male connector 100 and the female connector 300 approach each other within a preset distance, the elastic buckle 200 enters the locking part 312; the contact surface 220 disengages from the female connector 300, and the abutting surface 210 abuts against the female connector 300; at this time, the spring piece 410 abuts against the contact surface 220. Since the middle part of the spring piece 410 is recessed towards the axis of the female connector 300, the spring piece 410 applies a force to the contact surface 220 it abuts against, and this force causes the elastic buckle 200 to tend to move away from the second connection end. The spring piece 410 gives the female connector 300 a force to move away from the male connector 100, so that the abutting surface 210 and the female connector 300 fit tightly together and abut against each other. There is no gap between the two, so the male connector 100 and the female connector 300 cannot be separated and will not move axially.

[0030] When maintaining the connector, the maintenance personnel can use their fingers or tools to press the spring piece 410 from the outside in. The spring piece 410 deforms under the force, and its middle part is concave inward, which applies an inward force to the elastic buckle 200, thereby causing the elastic buckle 200 to move inward, and the contact surface 210 to disengage from the female head 300. At the same time, an axial pulling force is applied. At this time, the elastic buckle 200 moves from the contact part 312 to the sliding part 311 and slides in the sliding part 311, and the male head 100 and the female head 300 separate from each other.

[0031] This invention, by setting a spring piece 410, after the male connector 100 and the female connector 300 are engaged, uses the spring piece 410 to apply force to the elastic latch 200, thereby causing the contact surface 210 to abut against the female connector 300, eliminating the gap between them, thus solving the problem of axial movement of the male connector 100 and the female connector 300 after insertion, avoiding wear at the contact position, improving the reliability of the connector, and eliminating safety hazards.

[0032] In a further embodiment, a first sliding ring 320 is coaxially sleeved on the outer side of the second snap-fit ​​end, and the first sliding ring 320 is slidably mounted on the female head 300 along its own axial direction; one end of the spring piece 410 is connected to the female head 300, and the other end is connected to the first sliding ring 320.

[0033] During maintenance, the maintenance personnel hold the male connector 100 with one hand and the first sliding ring 320 with the other, moving the first sliding ring 320 towards the second connection end while applying an axial pulling force to the male connector 100 and the female connector 300. As the first sliding ring 320 approaches the second connection end, the spring piece 410 deforms, applying an inward force to the elastic buckle 200, causing the elastic buckle 200 to move inward, disengaging the contact surface 210 from the female connector 300. Due to the axial pulling force applied by the maintenance personnel to the male connector 100 and the female connector 300, the elastic buckle 200 moves from the engaging part 312 to the sliding part 311 and slides within the sliding part 311, separating the male connector 100 and the female connector 300.

[0034] In a further embodiment, the two elastic clips 200 extend from the male head 100 by unequal lengths, so that during the insertion process, after one elastic clip 200 enters the locking part 312, the other elastic clip 200 contacts the female head 300.

[0035] In the traditional design where two elastic latches 200 extend to the same length, when the male connector 100 is inserted into the female connector 300, both elastic latches 200 simultaneously contact the female connector 300. After entering the sliding part 311, both elastic latches 200 deform simultaneously, slide within the sliding part 311, and simultaneously move from the sliding part 311 to the engaging part 312. When separating the male connector 100 from the female connector 300, both elastic latches 200 simultaneously enter the sliding part 311 from the engaging part 312, slide within the sliding part 311, and disengage from the female connector 300. During the aforementioned insertion and removal process, both elastic latches 200 undergo simultaneous elastic deformation. Because the two elastic latches 200 are axially symmetrical about the axis of the male connector 100, their deformation is relatively large, resulting in significant resistance to overcome during insertion and removal, leading to difficulties in insertion and removal.

[0036] In this embodiment, the two elastic clips 200 extend unequally from the male head 100. During the insertion process, the one with the longer male head 100 contacts the female head 300 first. At this time, the female head 300 applies an inward force to the elastic clip 200, causing the male head 100 and the female head 300 to be in a state of being out of axis. The deformation of the elastic clip 200 that contacts the female head 300 is smaller than that of the elastic clip 200 in the traditional scheme where the two elastic clips 200 extend unequally. After it enters the locking part 312, the elastic clip 200 releases its elasticity. At this time, the other elastic clip 200 contacts the female head 300 and slides in the sliding part 311 before finally entering the locking part 312. During the insertion of the shorter elastic buckle 200 (extending from the male head 100) into the female head 300, the force exerted by the female head 300 on the longer elastic buckle 200 (extending from the male head 100) is less than the force exerted by the female head 300 on the elastic buckle 200 in the traditional scheme where the two elastic buckles 200 extend to the same length. As a result, the deformation of the shorter elastic buckle 200 (extending from the male head 100) is less than the deformation of the elastic buckle 200 in the traditional scheme where the two elastic buckles 200 extend to the same length.

[0037] This invention sets the lengths of the two elastic clips 200 extending out of the male head 100 to be unequal, thereby decomposing the large, concentrated resistance that needs to be overcome during insertion and removal into two continuous, smaller forces, making the insertion and removal process smoother and less strenuous, solving the problem of difficult insertion and removal, and reducing the wear between the elastic clips 200 and the female head 300 during the insertion process.

[0038] In a further embodiment, the two slots 310 are symmetrically arranged about the axis of the female connector 300, and the elastic buckle 200 is slidably mounted on the male connector 100 along the axis of the male connector 100. The solar photovoltaic harness connector of the present invention also includes an adjustment mechanism 600, which is used to adjust the length of the elastic buckle 200 extending out of the male connector 100, so that the two elastic buckles 200 alternately contact the female connector 300 first. This makes the wear degree of the two elastic buckles 200 more uniform.

[0039] The adjusting mechanism 600 includes a friction block 610, a rotating rod 620, and two connecting rods 630. The rotating rod 620 is rotatably mounted on the male connector 100. The two connecting rods 630 are located at both ends of the rotating rod 620, and two elastic latches 200 are hinged to the two connecting rods 630 and located at the ends of the connecting rods 630 away from the rotating rod 620. The friction block 610 is fixedly connected to one of the sliding parts 311. When the elastic latches 200 slide in the sliding part 311, they engage with the friction block 610 through friction. There is sliding resistance between the elastic latches 200 and the male connector 100.

[0040] By setting the adjustment mechanism 600, the length of the elastic buckle 200 extending out of the male head 100 is adjusted each time it is disassembled, so that the two elastic buckles 200 alternately contact the female head 300 first, thereby making the wear degree of the two elastic buckles 200 more consistent and further extending the service life of the connector.

[0041] In a further embodiment, the female head 300 is provided with a fastening mechanism 700, which is used to move the first sliding ring 320 toward the spring piece 410 when the male head 100 and the female head 300 move axially.

[0042] The fastening mechanism 700 includes a second sliding ring 710 and a compression spring 720; the second sliding ring 710 is coaxially sleeved on the second snap-fit ​​end; the first sliding ring 320 is partially located inside the second sliding ring 710 and partially located outside the second sliding ring 710; the first sliding ring 320 is ratcheted with the female head 300 so that when the first sliding ring 320 moves away from the male head 100, it causes the spring piece 410 to become more concave; the second sliding ring 710 is ratcheted with the first sliding ring 320 so that when the second sliding ring 710 moves closer to the spring piece 410, it drives the first sliding ring 320 to move synchronously; the two ends of the compression spring 720 abut against the first sliding ring 320 and the second sliding ring 710 respectively, and the compression spring 720 causes the second sliding ring 710 to tend to move away from the first sliding ring 320.

[0043] By setting the fastening mechanism 700, the relative axial displacement between the male connector 100 and the female connector 300 can be sensed, thereby adjusting the force applied to the male connector 100 and the female connector 300 by the spring 410. Even if the male connector 100 and the female connector 300 move axially, the gap between the male connector 100 and the female connector 300 can be quickly reduced, so that the elastic buckle 200 and the female connector 300 fit tightly together, further ensuring the connection stability of the connector.

[0044] In a further embodiment, both the first and second connection ends are provided with knobs 110, and the knobs 110 and male connectors 100 and female connectors 300 are threaded together; a sealing ring 120 is sleeved between the wire harness body 500 and the knobs 110.

[0045] Work process: When connecting the solar photovoltaic harness, first put the sealing ring 120 and the knob 110 on the two harness bodies 500 respectively, and connect the two knobs 110 to the male connector 100 and the female connector 300 respectively. At this time, the connection between the harness body 500 and the male connector 100 and the harness body 500 and the female connector 300 are completed. After that, the male connector 100 and the female connector 300 are plugged in.

[0046] Align the male connector 100 and female connector 300 approximately, and align the shorter elastic buckle 200 extending from the male connector 100 with the slot 310 where the friction block 610 is installed, bringing the male connector 100 and female connector 300 closer together. The contact surface 220 of the longer elastic buckle 200 extending from the male connector 100 first contacts the sliding part 311. A continuous axial thrust pushes the elastic buckle 200 into the sliding part 311, causing it to slide within the sliding part 311. During this process, the sliding resistance between the elastic buckle 200 and the male connector 100 keeps the length of the elastic buckle 200 extending from the male connector 100 constant. The elastic buckle 200 undergoes elastic deformation due to compression, but the deformation of the elastic buckle 200 is much smaller than that of two elastic buckles 200 of equal length in the traditional case. Furthermore, the force exerted on the elastic buckle 200 by the female connector 300 is smaller, making the insertion process smoother and less strenuous.

[0047] When the longer elastic buckle 200 of the male head 100 reaches the corresponding engagement portion 312, as the male head 100 and the female head 300 continue to approach each other, the elastic buckle 200 reaching the engagement portion 312 is pushed by the female head 300 and moves towards the first connecting end within the sliding portion 311. As this elastic buckle 200 moves, it pushes the rotating rod 620 to rotate. When the rotating rod 620 rotates, it pushes another elastic buckle 200 towards the female head 300, making contact with it, entering the slot 310, and moving towards the engagement portion 312, until both elastic buckles 200 reach their corresponding engagement portions 312. At this point, the end of the second sliding ring 710 away from the first sliding ring 320 is connected to the male head 100. The first sliding ring 320 abuts against the second sliding ring 710 under the action of the ratchet, while the two spring pieces 410 abut against the two elastic buckles 200 respectively. Since the middle part of the spring piece 410 is recessed towards the axis of the female head 300, the spring piece 410 exerts a force on the first sliding ring 320 and the female head 300 to move away from each other, while exerting an inward force on the elastic buckles 200. Under the action of the spring piece 410, the abutting surface 210 and the female head 300 are tightly fitted and abut against each other, and there is no gap between them. Therefore, the male head 100 and the female head 300 cannot be separated and there will be no axial movement. This solves the problem of low connection reliability caused by movement and the problem of wear and shortened service life.

[0048] During use, when the elastic buckle 200 wears or undergoes plastic deformation, a gap exists between the contact surface 210 and the female connector 300. When the connector or wire harness body 500 is under stress, it can cause axial movement between the male connector 100 and the female connector 300. Under the action of the compression spring 720, the second sliding ring 710 remains in contact with the male connector 100. When the male connector 100 approaches the female connector 300, it pushes the second sliding ring 710 towards the female connector 300. Since the first sliding ring 320 and the second sliding ring 710 are in ratchet engagement, the second sliding ring 710 drives the first sliding ring 320 to move together. As the first sliding ring 320 moves, it causes the deformation of the spring piece 410 to increase. The force exerted by the spring piece 410 on the female head 300 and the first sliding ring 320, as well as on the elastic buckle 200, increases. This causes the contact surface 210 to fit tightly against the female head 300. Because the first sliding ring 320 and the female head 300 are engaged by ratchet teeth, the first sliding ring 320 cannot move away from the female head 300. Therefore, during use, the deformation of the spring piece 410 cannot decrease. However, during use, the deformation of the spring piece 410 is insufficient to disengage the elastic buckle 200 from the locking part 312.

[0049] When the connector needs to be disassembled, the maintenance personnel hold the male connector 100 with one hand and the female connector 300 with the other, moving the first sliding ring 320 towards the second connection end while applying an axial pulling force to the male connector 100 and the female connector 300. As the first sliding ring 320 approaches the second connection end, the spring piece 410 deforms, applying an inward force to the elastic latch 200, causing the elastic latch 200 to move inward and disengage from the contact surface 210. Due to the axial pulling force applied by the maintenance personnel to the male connector 100 and the female connector 300, the elastic latch 200 moves from the engaging part 312 to the sliding part 311 and slides within the sliding part 311. During the movement of the elastic latch 200 within the sliding part 311, the friction block 610 engages with the corresponding elastic latch 200, providing a frictional force to the elastic latch 200 pointing towards the female connector 300, thereby increasing the length of the elastic latch 200 extending beyond the male connector 100. As the elastic buckle 200 moves, the rotating rod 620 rotates, causing another elastic buckle 200 to move along the axial direction of the male head 100. This causes the length of the other elastic buckle 200 extending beyond the male head 100 to shorten. When the friction block 610 disengages from the elastic buckle 200, the elastic buckle 200 stops moving axially relative to the male head 100. At this point, the elastic buckle 200 that originally extended shorter beyond the male head 100 extends longer, while the elastic buckle 200 that originally extended longer now extends shorter. During the next insertion, the elastic buckle 200 with the shorter extension length is aligned with the slot 310 with the friction block 610, allowing the two elastic buckles 200 to switch states. This achieves the purpose of the two elastic buckles 200 alternately contacting the female head 300 first, making the wear of the two elastic buckles 200 more uniform and further extending the service life of the elastic buckles 200.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A solar photovoltaic wiring harness connector, characterized in that, include: The male connector has one end as the first snap-fit ​​terminal and the other end as the first wire connection terminal. An elastic buckle is fixedly connected to the first snap-fit ​​end and extends along the axial direction of the male connector; two elastic buckles are provided, and the two elastic buckles are evenly distributed along the circumference of the male connector; the end of the elastic buckle away from the male connector has an abutment surface and a contact surface; the contact surface is inclined, and the end away from the male connector is located on the inner side of the end closer to the male connector; the abutment surface is located on the side of the contact surface closer to the male connector and is perpendicular to the axis of the male connector. The female connector has a second snap-fit ​​end on one end and a second wire connection end on the other end; the first wire connection end and the second wire connection end are used to connect to the wire harness body; the second snap-fit ​​end has two slots, and the two slots correspond to two elastic buckles respectively; The abutting mechanism is used to keep the abutting surface in contact with the female head.

2. A solar photovoltaic wiring harness connector according to claim 1, characterized in that, The slot includes a sliding part and a locking part, the locking part being in communication with the outside; the abutment mechanism includes two spring pieces, which are respectively installed in the two locking parts, with the middle of the spring pieces recessed towards the axis of the female head; after the female head and male head are inserted, the spring pieces abut against the elastic buckle and apply force to the elastic buckle.

3. A solar photovoltaic wiring harness connector according to claim 2, characterized in that, The second snap-fit ​​end is coaxially fitted with a first sliding ring, which is slidably mounted on the female end along its own axis; one end of the spring piece is connected to the female end, and the other end is connected to the first sliding ring.

4. A solar photovoltaic wire harness connector according to claim 3, characterized in that, The two elastic clips extend from the male head to unequal lengths, so that during the insertion process, after one elastic clip enters the locking part, the other elastic clip contacts the female head.

5. A solar photovoltaic wiring harness connector according to claim 4, characterized in that, The two slots are symmetrically arranged about the axis of the female connector, and the elastic buckles are slidably installed on the male connector along the axis of the male connector. The solar photovoltaic harness connector also includes an adjustment mechanism for adjusting the length of the elastic buckles extending out of the male connector, so that the two elastic buckles alternately contact the female connector first.

6. A solar photovoltaic wiring harness connector according to claim 5, characterized in that, The adjustment mechanism includes a friction block, a rotating rod, and two connecting rods; the rotating rod is rotatably mounted on the male end; the two connecting rods are located at the two ends of the rotating rod, and two elastic latches are hinged to the two connecting rods and located at the ends of the connecting rods away from the rotating rod; the friction block is fixedly connected to one of the sliding parts; when the elastic latch slides in the sliding part, it engages with the friction block; there is sliding resistance between the elastic latch and the male end.

7. A solar photovoltaic wiring harness connector according to claim 3, characterized in that, The female head is equipped with a fastening mechanism, which is used to move the first sliding ring toward the spring plate when the male head and the female head move axially.

8. A solar photovoltaic wiring harness connector according to claim 7, characterized in that, The fastening mechanism includes a second sliding ring and a compression spring; the second sliding ring is coaxially sleeved on the second snap-fit ​​end; the first sliding ring is partially located inside the second sliding ring and partially located outside the second sliding ring; the first sliding ring is ratcheted to the female head so that when the first sliding ring moves away from the male head, it causes the spring to depress more; the second sliding ring is ratcheted to the first sliding ring so that when the second sliding ring approaches the spring, it drives the first sliding ring to move synchronously; the two ends of the compression spring abut against the first and second sliding rings respectively, and the compression spring causes the second sliding ring to tend to move away from the first sliding ring.

9. A solar photovoltaic wiring harness connector according to claim 1, characterized in that, Both the first and second connectors are equipped with knobs, and the knobs are threaded into the male connector and the female connector.

10. A solar photovoltaic wiring harness connector according to claim 9, characterized in that, A sealing ring is fitted between the wire harness body and the knob.

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