Multifunctional debugging universal adapter wire harness for photovoltaic power station

Abstract

The invention relates to the technical field of adapter wire harnesses, and discloses a photovoltaic power station multifunctional debugging universal adapter wire harness which comprises an adapter. A plurality of loading shafts are installed at one end of the adapter, universal parts are installed in the loading shafts, female end connectors of different specifications are installed on the universal parts respectively, the other end of the adapter is connected with a plurality of branch wires, one ends of the branch wires are connected with male end heads of different specifications respectively, and a wire is connected between each branch wire and each female end connector; a limiting shaft for a plug to pass through is fixed to the end of the female end connector, and a plurality of elastic abutting pieces which are distributed in the circumferential direction and extend into the limiting shaft to limit the plug are installed on the limiting shaft. Through the linkage design of the universal part, the elastic pressing part and the limiting assembly, when the female end connector is deviated due to pulling force, the female end connector can automatically adjust the angle, elastically buffer, fix and limit, further press a plug and prevent falling off, meanwhile, the pressure sensor monitors the pressure and gives an alarm, and the cable connection stability and the equipment debugging safety are improved.

Description

Technical Field

[0001] This invention relates to the field of adapter harness technology, and in particular to a universal adapter harness for multifunctional commissioning of photovoltaic power plants. Background Technology

[0002] In the construction and maintenance of photovoltaic power plants, the diversity of equipment communication and physical interfaces has always been a major challenge for technicians. Equipment from different manufacturers exhibits differences in communication interface types and internal wiring definitions for their physical interfaces, causing inconvenience for equipment integration and commissioning. For example, while the RJ45 interface may appear uniform in appearance, its internal wiring definition can vary from manufacturer to manufacturer. Similarly, the A / B line order of the RS485 interface differs from device to device. This inconsistency makes commissioning complex and time-consuming. In practice, commissioning personnel often need to carry a large number of cables of different types to cope with the differences in various equipment interfaces, which not only increases the workload... This increases the workload of debugging personnel and may lead to incorrect connections during debugging, thus affecting the normal operation of the equipment. To solve this problem, a universal adapter harness was designed. The main component of the harness is an adapter. Multiple interface terminals of different specifications are set at one end of the adapter, and a main wire is connected to the other end. Multiple branch wires are connected to the main wire, and each branch wire corresponds to a different interface terminal. Multiple lead wires are set inside the adapter, and each lead wire is used to connect multiple interface terminals and multiple branch wires. Each branch wire is connected to a different type of plug to adapt to various common communication interface types and to connect with the communication interface of the equipment, thereby realizing rapid debugging of the equipment.

[0003] During equipment debugging, multiple communication cables are often connected to the equipment, which can easily lead to a messy cable situation. In order to better identify and manage the test cables, staff usually pull the cables connected to the adapter interface to adjust their positions. However, due to the flexibility of the cables themselves, the plugs and interfaces of the cables will be subjected to pulling forces from the corresponding directions during the pulling process. This pulling force may cause the cable plugs and adapter interfaces to become loose. This loosening is often not easily noticed by staff, thus affecting the stability of equipment debugging.

[0004] To address the aforementioned issues, this application proposes a universal adapter harness for multifunctional commissioning of photovoltaic power plants. Summary of the Invention

[0005] This invention proposes a universal adapter cable bundle for multifunctional commissioning of photovoltaic power plants, which solves the problem in related technologies that multiple communication cables are easily messy, and when staff pull the cables to adjust their positions, the plugs and adapter interfaces are easily loosened due to the flexibility of the cables and are not easily noticed, thus affecting the stability of commissioning.

[0006] This invention proposes a universal adapter harness for multifunctional commissioning of photovoltaic power plants, including an adapter.

[0007] One end of the adapter is equipped with multiple loading shafts, each of which contains a universal joint. Each universal joint is equipped with a female connector of a different specification. The other end of the adapter is connected to multiple branch lines, one end of which is connected to a male connector of a different specification. Each branch line is connected to each female connector with a wire.

[0008] The end of the female connector is fixed with a limiting shaft for the plug to pass through, and multiple circumferentially distributed elastic pressing members that extend into it to limit the plug are installed on the limiting shaft.

[0009] The loading shaft is equipped with multiple circumferentially distributed limiting components that extend into it. Each limiting component corresponds to a multiple elastic pressing member to limit the deflection angle between the female end connector and the limiting shaft. When subjected to force, the limiting components elastically buffer and lock the elastic pressing members to press against the plug.

[0010] As a further optimization of the present invention, the universal joint includes a fixed shaft and a universal ball. Each loading shaft has a fixed shaft fixed inside it. The fixed shaft has a movable channel in the middle. The universal ball is rolled and installed in the movable channel. The end of the female end connector away from the limiting shaft is integrally connected to an end post fixed to the universal ball. Multiple end posts are respectively connected to multiple wires.

[0011] As a further optimization of the present invention, the elastic pressing member includes a pressing rod, an arc-shaped block and a first spring. Multiple pressing rods are slidably connected to the limiting shaft and extend therein. An arc-shaped block is installed at one end of each pressing rod. The multiple arc-shaped blocks are evenly distributed on the outer periphery of the limiting shaft. A first spring is sleeved on the pressing rod, and the two ends of the first spring are respectively connected to the arc-shaped block and the limiting shaft.

[0012] As a further optimization of the present invention, the limiting component includes a loading cylinder and an elastic limiting part. Multiple circumferentially distributed loading cylinders are installed on the loading shaft, and each loading cylinder is fitted with an elastic limiting part that extends into the loading shaft. The multiple elastic limiting parts correspond to multiple arc-shaped blocks respectively.

[0013] As a further optimization of the present invention, the elastic limiting part includes a limiting rod, a first end block, and a second spring. Multiple loading cylinders are slidably connected with limiting rods extending into the loading shaft. Multiple limiting rods correspond to multiple arc-shaped blocks. The end of the limiting rod away from the arc-shaped block is fixed to the first end block. A second spring is sleeved on the limiting rod, and both ends of the second spring are connected to the loading cylinder and the first end block, respectively. A pressure sensor is fixed to the end of the limiting rod near the arc-shaped block. A limiting hole is formed on the outer periphery of the limiting rod. An elastic locking part is installed on the loading cylinder that abuts against the limiting rod, used to insert the limiting rod into the limiting hole for locking after it moves upward under force.

[0014] As a further optimization of the present invention, the elastic locking part includes a locking rod, a second end block and a third spring. The locking rod, which abuts against the limiting rod, is slidably connected to the outer periphery of the loading cylinder. The second end block is fixed to one end of the locking rod. The third spring is sleeved on the locking rod, and the two ends of the third spring are respectively connected to the loading cylinder and the second end block.

[0015] As a further optimization of the present invention, an opening is formed at the end of the loading shaft away from the adapter, and a cover plate is rotatably installed at the end of the loading shaft away from the adapter to open and close the opening.

[0016] As a further optimization of the present invention, the cover plate includes a cover plate body, which is rotatably mounted on the bottom edge of the loading shaft away from the adapter. The top edge of the loading shaft away from the adapter has a loading hole, and a first magnetic sheet is fixed in the loading hole. A second magnetic sheet for magnetic connection with the first magnetic sheet is fixed on the inner side of the cover plate body, and a cable clamping component for cable positioning is installed on the outer side of the cover plate body.

[0017] As a further optimization of the present invention, the wire clamping component includes a wire clamping disc and elastic sheets. The wire clamping disc is fixed on the outside of the cover plate body, and a slot is formed on the wire clamping disc, and two elastic sheets in a figure-eight structure are installed in the slot.

[0018] As a further optimization of the present invention, the adapter is equipped with a controller and an alarm, and the controller is electrically connected to the alarm and the pressure sensor respectively.

[0019] The above-described technical solution of the present invention has the following beneficial technical effects:

[0020] 1. By setting multiple loading shafts and installing universal joints at one end of the adapter to fix the female connector, when the cable plug is inserted into the female connector, even if the staff pulls the cable to adjust the position, the universal ball in the universal joint will roll to change the offset angle of the female connector to adapt to the pulling force, thereby avoiding the plug from falling off the female connector due to the pulling force, improving the stability of the cable connection during equipment debugging, reducing debugging interruptions caused by plug falling off, and ensuring the smooth progress of debugging work;

[0021] 2. This invention fixes a limiting shaft at the end of the female connector and installs multiple circumferentially distributed elastic pressing members on it. At the same time, a corresponding limiting component is installed on the loading shaft. When the plug is inserted into the female connector, it passes through the limiting shaft, and the elastic pressing members pre-tighten the plug. When the cable is adjusted and the female connector is subjected to tensile force and deviates, the elastic pressing members push the limiting component for elastic buffering, limiting the deviation angle of the female connector. This design, through the cooperation of the elastic pressing members and the limiting component, forms a dual protection mechanism, which enables the plug to maintain a stable connection when subjected to external force, effectively preventing the plug from falling off due to excessive tensile force, thereby enhancing the reliability of the cable connection and reducing the risk of equipment debugging failure caused by plug loosening.

[0022] 3. When the female connector is offset, its elastic pressing element can push the elastic limiting part in the limiting assembly for elastic buffering. When the limiting rod in the elastic limiting part moves to a certain position on the loading cylinder, the limiting hole on the limiting rod will align with the elastic locking part on the loading cylinder. The elastic locking part will then insert into the limiting hole, thereby fixing the position of the limiting rod. In the fixed state, the limiting rod can push the elastic pressing element to move towards the plug in the limiting shaft, so that the elastic pressing element further presses against the plug. This linkage design further restricts the movement of the plug and enhances the connection strength between the plug and the female connector. Even under a large tensile force, it can effectively prevent the plug from falling off and ensure the stability of the cable connection during equipment debugging.

[0023] 4. When the female connector shifts and the limit rod moves under force, the pressure sensor at the end of the limit rod near the elastic pressing part will be subjected to compressive force. The pressure sensor can monitor the pressure in real time. When the pressure sensor exceeds the threshold, the controller can analyze the pressure signal and then control the alarm to remind the staff to pay attention to the extent of pulling the cable and check whether the plug is loose. This design can detect potential problems in the cable connection in time, avoid the plug from becoming loose due to improper operation by the staff, and affect the equipment debugging, thus improving the controllability and safety of the equipment debugging.

[0024] 5. After the cable connection and adjustment are completed, the portion of the cable near the plug can be clipped onto the cable clip in the cover plate. Specifically, the cable is clipped into the slot in the cable clip tray, and is limited by the two elastic pieces with an eight-shaped structure inside. When the adapter is not used, the cover plate can be rotated so that the second magnetic piece inside the cover plate is magnetically connected to the first magnetic piece on the loading shaft. The cover plate seals the opening on the loading shaft to prevent dust from entering. This design can effectively fix the cable and prevent the cable from moving or shaking unexpectedly due to external forces during equipment debugging, further enhancing the stability of the cable connection. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a multifunctional commissioning universal adapter bundle for photovoltaic power plants proposed in this invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the adapter of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the loading shaft of the present invention;

[0028] Figure 4 This is a schematic diagram of the rear structure of the loading shaft of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of the loading shaft of the present invention;

[0030] Figure 6 This is a schematic diagram of the mating structure between the female end connector and the elastic pressing member of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the limiting component of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the elastic limiting part of the present invention;

[0033] Figure 9 For the present invention Figure 8 Enlarged view of A in the middle;

[0034] Figure 10 This is a schematic diagram of the structure of the elastic pressing member of the present invention;

[0035] Figure 11 This is a schematic diagram of the structure of the cover plate component of the present invention;

[0036] Figure 12 This is a schematic diagram of the back structure of the cover plate of the present invention.

[0037] Reference numerals: 1. Adapter; 101. Loading shaft; 1011. First magnetic plate; 102. Controller; 103. Alarm; 2. Universal joint; 21. Fixed shaft; 22. Universal ball; 3. Female connector; 31. Limiting shaft; 32. End post; 4. Branch line; 41. Male end; 42. Wire; 5. Elastic pressing component; 51. Pressing rod; 52. Arc block; 53. First spring; 6. Limiting assembly 61. Loading cylinder; 62. Elastic limiting part; 621. Limiting rod; 6211. Limiting hole; 622. First end block; 623. Second spring; 63. Elastic locking part; 631. Locking rod; 632. Second end block; 633. Third spring; 64. Pressure sensor; 7. Cover plate; 71. Cover plate body; 72. Wire locking part; 721. Wire locking disc; 722. Elastic sheet; 73. Second magnetic sheet. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0039] like Figure 1-12 As shown, the present invention proposes a multi-functional universal adapter harness for photovoltaic power station commissioning, including an adapter 1; one end of the adapter 1 is equipped with multiple loading shafts 101, each of which is equipped with a universal joint 2, and each universal joint 2 is equipped with a female connector 3 of different specifications; the other end of the adapter 1 is connected to multiple branch lines 4, one end of each branch line 4 is connected to a male connector 41 of different specifications, and each branch line 4 is connected to each female connector 3 with a wire 42;

[0040] The end of the female connector 3 is fixed with a limiting shaft 31 for the plug to pass through. Multiple circumferentially distributed elastic pressing members 5 are installed on the limiting shaft 31 and extend into it to limit the plug.

[0041] Multiple circumferentially distributed limiting components 6 are installed on the loading shaft 101 and extend therein. The multiple limiting components 6 correspond to multiple elastic pressing members 5 respectively to limit the deflection angle between the female end connector 3 and the limiting shaft 31. When it is under force, it elastically buffers and locks the elastic pressing member 5 to press against the plug.

[0042] The loading shaft 101 at one end of the adapter 1 provides an installation base for the universal joint 2. The universal joint 2 can drive the female connector 3 to flexibly adjust its direction. Different specifications of female connectors 3 can be adapted to various plugs. The branch line 4 and male terminal 41 at the other end of the adapter 1 can be connected to different equipment interfaces. The wire 42 realizes the signal transmission between the female connector 3 and the branch line 4. The limiting shaft 31 at the end of the female connector 3 guides the plug to be inserted. The elastic pressing member 5 can initially tighten and limit the plug. The limiting component 6 on the loading shaft 101 cooperates with the elastic pressing member 5 to limit the deflection angle of the female connector 3 and the limiting shaft 31 to avoid excessive offset, and can also provide elastic buffer when subjected to force, while pushing the elastic pressing member 5 to further tighten the plug.

[0043] In this embodiment, the universal joint 2 includes a fixed shaft 21 and a universal ball 22. Each loading shaft 101 has a fixed shaft 21 fixed inside. The fixed shaft 21 has a movable channel in the middle. The universal ball 22 is rolled and installed in the movable channel. The end of the female connector 3 away from the limiting shaft 31 is integrally connected to an end post 32 fixed to the universal ball 22. Multiple end posts 32 are respectively connected to multiple wires 42. When the female connector 3 is subjected to tension, the universal ball 22 can roll in the movable channel, driving the female connector 3 to adjust its direction. The end post 32 is connected to the wires 42 to ensure that the signal received by the female connector 3 can be transmitted to the branch line 4 through the wires 42. The above-mentioned design of the universal ball 22 allows the female connector 3 to flexibly adapt to the direction of tension, avoids the female connector 3 from falling off the plug due to tension, ensures the continuity of signal transmission, and improves the stability of cable connection.

[0044] In this embodiment, the elastic pressing member 5 includes a pressing rod 51, an arc-shaped block 52, and a first spring 53. Multiple circumferentially distributed pressing rods 51 are slidably connected to and extend into the limiting shaft 31. An arc-shaped block 52 is installed at one end of each pressing rod 51. The multiple arc-shaped blocks 52 are evenly distributed on the outer periphery of the limiting shaft 31. The first spring 53 is sleeved on the pressing rod 51, and the two ends of the first spring 53 are respectively connected to the arc-shaped block 52 and the limiting shaft 31. When the plug passes through the limiting shaft 31 and is inserted into the female connector 3, the pressing rod 51 can push the arc-shaped block 52 outward, and the first spring 53 is stretched. The elastic force of the first spring 53 reacts to the arc-shaped block 52, so that the pressing rod 51 presses against the plug, thereby limiting and fixing the plug. The above can enhance the tightness of the connection between the plug and the female connector 3, effectively prevent the plug from loosening during the debugging process, and ensure the stable progress of the debugging work.

[0045] In this embodiment, the limiting component 6 includes a loading cylinder 61 and an elastic limiting part 62. Multiple circumferentially distributed loading cylinders 61 are installed on the loading shaft 101, and each loading cylinder 61 is fitted with an elastic limiting part 62 that extends into the loading shaft 101. The multiple elastic limiting parts 62 correspond to multiple arc-shaped blocks 52 respectively. When the female connector 3 shifts and causes the arc-shaped blocks 52 to move, the arc-shaped blocks 52 squeeze the elastic limiting parts 62, and the elastic limiting parts 62 undergo elastic deformation, generating a reverse force to limit the offset of the female connector 3, preventing the plug from becoming loose or falling off due to excessive offset. At the same time, the elastic deformation can buffer the impact force, protect the components from damage, and extend the service life.

[0046] In this embodiment, the elastic limiting part 62 includes a limiting rod 621, a first end block 622, and a second spring 623. Multiple loading cylinders 61 are slidably connected with limiting rods 621 extending into the loading shaft 101. Multiple limiting rods 621 correspond to multiple arc-shaped blocks 52. The end of the limiting rod 621 away from the arc-shaped block 52 is fixed with the first end block 622. The second spring 623 is sleeved on the limiting rod 621, and both ends of the second spring 623 are connected to the loading cylinder 61 and the first end block 622, respectively. A pressure sensor 64 is fixed to the end of the limiting rod 621 near the arc-shaped block 52. A limiting hole 6211 is formed on the outer periphery of the limiting rod 621. An elastic locking part 63 is installed on the loading cylinder 61, which abuts against the limiting rod 621, and is used to lock the limiting rod 621 into the limiting hole 6211 after it is pushed upwards by force. When the arc-shaped block 52 presses against the limiting rod 621, the limiting rod 621 slides along the loading cylinder 61, the first end block 622 moves with the limiting rod 621, the second spring 623 is stretched, generating elastic buffering force to limit the offset of the female connector 3, and the pressure sensor 64 monitors the pressure of the arc-shaped block 52 on the limiting rod 621 in real time. When the limiting rod 621 slides to the point where the limiting hole 6211 is aligned with the elastic locking part 63, the elastic locking part 63 inserts into the limiting hole 6211 to fix the position of the limiting rod 621. At this time, the limiting rod 621 pushes the arc-shaped block 52 to further press against the plug. The above achieves elastic buffering and limiting of the offset of the female connector 3. The pressure monitoring can promptly provide feedback on the force, and the locking fixation further enhances the pressing effect of the plug, providing multiple guarantees for the stable connection of the plug, while also making it easier for staff to understand the stress state of the cable.

[0047] In this embodiment, the elastic locking part 63 includes a locking rod 631, a second end block 632, and a third spring 633. The locking rod 631, which slidably passes through the outer periphery of the loading cylinder 61 and abuts against the limiting rod 621, is fixed to one end of the locking rod 631. The third spring 633 is sleeved on the locking rod 631, and its two ends are respectively connected to the loading cylinder 61 and the second end block 632. When the limiting rod 621 slides, the limiting hole 6211 on it slides accordingly, thus limiting the movement. When hole 6211 is aligned with locking rod 631, the elastic force of third spring 633 pushes locking rod 631 into limiting hole 6211, locking and fixing limiting rod 621. When female end connector 3 continues to deviate under force, limiting rod 621, in the fixed state, pushes arc block 52 to move towards plug, so that the pressure rod 51 connected to arc block 52 further abuts against plug. When it is necessary to release the locking, pull second end block 632 outward to drive locking rod 631 out of limiting hole 6211.

[0048] In this embodiment, an opening is formed at the end of the loading shaft 101 away from the adapter 1, and a cover plate 7 for opening and closing the opening is rotatably mounted at the end of the loading shaft 101 away from the adapter 1. When it is necessary to protect the internal components or prevent dust, the cover plate 7 is rotated to close the opening, and when it is necessary to operate the internal components, the cover plate 7 is rotated to open the opening. The above facilitates the operation and maintenance of the internal components of the adapter harness. When the opening is closed, dust and impurities can be prevented from entering, protecting the internal components, extending the service life of the adapter harness, and ensuring its stable performance.

[0049] In this embodiment, the cover plate 7 includes a cover plate body 71, which is rotatably mounted on the bottom edge of the loading shaft 101 away from the adapter 1. The top edge of the loading shaft 101 away from the adapter 1 is provided with a loading hole, and a first magnetic sheet 1011 is fixed in the loading hole. A second magnetic sheet 73 for magnetic connection with the first magnetic sheet 1011 is fixed on the inner side of the cover plate body 71. A cable clamping component 72 for cable clamping is installed on the outer side of the cover plate body 71.

[0050] When the cover plate 71 is closed, the second magnetic piece 73 on the inner side of the cover plate 71 is magnetically attracted to the first magnetic piece 1011 on the loading shaft 101, which fixes the cover plate 71 and seals the opening. The cable clamping piece 72 on the outer side of the cover plate 71 can clamp the cable, organize the cable, avoid the cable from being messy, and make it easier for staff to identify and manage the cable.

[0051] In this embodiment, the cable clamping component 72 includes a cable clamping disc 721 and elastic sheets 722. The cable clamping disc 721 is fixed to the outside of the cover plate 71. A slot is formed on the cable clamping disc 721, and two elastic sheets 722 in a figure-eight structure are installed in the slot. When the cable is inserted into the slot, the elastic sheets 722 are opened, and the elastic force of the elastic sheets 722 clamps and limits the cable, preventing the cable from coming out of the slot. The above can effectively fix the cable, prevent the cable from moving randomly during the debugging process, keep the cable neat, reduce the risk of plug loosening caused by cable movement, and facilitate the picking and putting away of the cable.

[0052] In this embodiment, the adapter 1 is equipped with a controller 102 and an alarm 103. The controller 102 is electrically connected to the alarm 103 and the pressure sensor 64. The pressure sensor 64 collects pressure data in real time and transmits the data to the controller 102. The controller 102 analyzes and judges the received pressure data. When the pressure value exceeds a preset threshold, the controller 102 sends a control signal to the alarm 103. After receiving the signal, the alarm 103 issues an alarm prompt, which promptly reminds the staff that the cable tension is too high and there may be a risk of the plug being loose. This facilitates the staff to check and handle the problem in a timely manner and avoids the debugging work being affected by the loose plug.

[0053] The specific working principle of this invention is as follows:

[0054] When debugging photovoltaic power station equipment, first select the female connector 3 that fits the loading shaft 101 at one end of the adapter 1 according to the plug specifications of the equipment to be connected. Open the cover plate 71 on the loading shaft 101, pass the plug of the equipment cable through the limiting shaft 31 at the end of the female connector 3, and insert it into the female connector 3. At this time, the pressing rod 51 on the limiting shaft 31 presses against the plug under the action of the first spring 53.

[0055] Next, insert the corresponding male terminal 41 on the other end of the adapter 1, branch line 4, into the communication port of the device under test. The wire 42 enables signal transmission between the female connector 3 and the branch line 4. If the cable position needs to be adjusted during debugging, when the cable is pulled, the cable drives the plug to apply a pulling force to the female connector 3. The female connector 3, through the universal ball 22 connected by the end post 32, rolls in the movable channel of the fixed shaft 21 to adjust the offset angle of the female connector 3 to adapt to the direction of the pulling force and prevent the plug from falling off.

[0056] Simultaneously, the offset of the female connector 3 causes the arc-shaped block 52 to press the limiting rod 621 in the corresponding limiting component 6. The limiting rod 621 slides along the loading cylinder 61, and the second spring 623 is stretched to generate elastic buffer force, limiting the offset of the female connector 3. The pressure sensor 64 on the limiting rod 621 transmits pressure data to the controller 102 in real time. When the limiting rod 621 slides to the limit hole 6211 and the locking rod 631 in the elastic locking part 63 are aligned, the locking rod 631 is inserted into the limit hole 6211 under the action of the third spring 633 to fix the limiting rod 621. At this time, the limiting rod 621 pushes the arc-shaped block 52, so that the pressing rod 51 further presses against the plug.

[0057] If the pressure detected by the pressure sensor 64 exceeds the threshold, the controller 102 controls the alarm 103 to sound an alarm, reminding the staff to check. After the cable adjustment is completed, the part of the cable near the plug is inserted into the slot of the cable clamping plate 721 on the outside of the cover plate 71, and the elastic plate 722 clamps the cable. When the debugging is completed or the adapter cable harness is not used, rotate the cover plate 71 so that the second magnetic plate 73 on the inside of the cover plate 71 is magnetically connected to the first magnetic plate 1011 of the loading shaft 101, and close the opening to prevent dust from entering.

[0058] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A multi-functional universal adapter harness for commissioning photovoltaic power plants, characterized in that, Including adapter (1); One end of the adapter (1) is equipped with multiple loading shafts (101), and each loading shaft (101) is equipped with a universal joint (2). Each universal joint (2) is equipped with a female connector (3) of different specifications. The other end of the adapter (1) is connected to multiple branch lines (4). One end of each branch line (4) is connected to a male connector (41) of different specifications. Each branch line (4) is connected to each female connector (3) with a wire (42). The end of the female connector (3) is fixed with a limiting shaft (31) for the plug to pass through. Multiple circumferentially distributed elastic pressing members (5) that extend into the limiting shaft (31) to limit the plug are installed on the limiting shaft (31). Multiple circumferentially distributed limiting components (6) are installed on the loading shaft (101) and extend therein. The multiple limiting components (6) correspond to multiple elastic pressing members (5) respectively, so as to limit the deflection angle between the female end connector (3) and the limiting shaft (31). When it is under force, it elastically buffers and locks the elastic pressing member (5) to press against the plug.

2. The universal adapter harness for multi-functional commissioning of photovoltaic power plants according to claim 1, characterized in that, The universal joint (2) includes a fixed shaft (21) and a universal ball (22). Each loading shaft (101) has a fixed shaft (21) fixed inside. The fixed shaft (21) has a movable channel in the middle. The universal ball (22) is rolled in the movable channel. The end of the female end connector (3) away from the limiting shaft (31) is integrally connected to an end post (32) fixed to the universal ball (22). Multiple end posts (32) are respectively connected to multiple wires (42).

3. The universal adapter harness for multifunctional commissioning of photovoltaic power plants according to claim 1, characterized in that, The elastic pressing member (5) includes a pressing rod (51), an arc block (52) and a first spring (53). Multiple pressing rods (51) are slidably connected to the limiting shaft (31) and extend into it. An arc block (52) is installed at one end of each pressing rod (51). The multiple arc blocks (52) are evenly distributed on the outer periphery of the limiting shaft (31). A first spring (53) is sleeved on the pressing rod (51), and the two ends of the first spring (53) are respectively connected to the arc block (52) and the limiting shaft (31).

4. The universal adapter harness for multifunctional commissioning of photovoltaic power plants according to claim 3, characterized in that, The limiting component (6) includes a loading cylinder (61) and an elastic limiting part (62). Multiple circumferentially distributed loading cylinders (61) are installed on the loading shaft (101). Each loading cylinder (61) is fitted with an elastic limiting part (62) that extends into the loading shaft (101). The multiple elastic limiting parts (62) correspond to multiple arc blocks (52) respectively.

5. The universal adapter harness for multifunctional commissioning of photovoltaic power plants according to claim 4, characterized in that, The elastic limiting part (62) includes a limiting rod (621), a first end block (622) and a second spring (623). The limiting rods (621) that extend into the loading shaft (101) are slidably connected to the multiple loading cylinders (61). The multiple limiting rods (621) correspond to the multiple arc blocks (52) respectively. The first end block (622) is fixed to the end of the limiting rod (621) away from the arc block (52). The second spring (623) is sleeved on the limiting rod (621). The two ends of the second spring (623) are connected to the loading cylinder (61) and the first end block (622) respectively. A pressure sensor (64) is fixed at one end of the limiting rod (621) near the arc block (52). A limiting hole (6211) is opened on the outer periphery of the limiting rod (621). An elastic locking part (63) that abuts against the limiting rod (621) is installed on the loading cylinder (61) for the limiting rod (621) to be inserted into the limiting hole (6211) for locking after the limiting rod (621) moves upward under force.

6. The universal adapter harness for multifunctional commissioning of photovoltaic power plants according to claim 5, characterized in that, The elastic locking part (63) includes a locking rod (631), a second end block (632) and a third spring (633). The outer periphery of the loading cylinder (61) is slidably connected to the locking rod (631) which abuts against the limiting rod (621). The second end block (632) is fixed to one end of the locking rod (631). The third spring (633) is sleeved on the locking rod (631), and the two ends of the third spring (633) are respectively connected to the loading cylinder (61) and the second end block (632).

7. The universal adapter harness for multifunctional commissioning of photovoltaic power plants according to claim 1, characterized in that, The loading shaft (101) has an opening at one end away from the adapter (1), and a cover plate (7) for opening and closing the opening is rotatably mounted at the other end of the loading shaft (101) away from the adapter (1).

8. The universal adapter harness for multifunctional commissioning of photovoltaic power plants according to claim 7, characterized in that, The cover plate component (7) includes a cover plate body (71), which is rotatably mounted on the bottom edge of the loading shaft (101) away from the adapter (1). The top edge of the loading shaft (101) away from the adapter (1) has a loading hole, and a first magnetic piece (1011) is fixed in the loading hole. A second magnetic piece (73) for magnetic connection with the first magnetic piece (1011) is fixed on the inner side of the cover plate body (71). A cable clamping component (72) for cable positioning is installed on the outer side of the cover plate body (71).

9. A universal adapter harness for multifunctional commissioning of photovoltaic power plants according to claim 8, characterized in that, The wire clamping component (72) includes a wire clamping disc (721) and an elastic sheet (722). The wire clamping disc (721) is fixed to the outside of the cover plate (71). A slot is formed on the wire clamping disc (721), and two elastic sheets (722) in a figure-eight structure are installed in the slot.

10. A universal adapter harness for multifunctional commissioning of photovoltaic power plants according to claim 5, characterized in that, The adapter (1) is equipped with a controller (102) and an alarm (103). The controller (102) is electrically connected to the alarm (103) and the pressure sensor (64) respectively.

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