High sealing photovoltaic wire harness and waterproof terminal crimping tool thereof
By designing a high-sealing photovoltaic harness structure and a precision feeding assembly, the problems of poor sealing and unstable crimping of photovoltaic harness connections are solved, achieving stable connection and efficient sealing between the harness and the waterproof terminal, thus improving the overall stability of the photovoltaic system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LILI ELECTRONICS CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
Smart Images
Figure CN224537460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness application technology, and in particular to a high-sealing photovoltaic wire harness and its waterproof terminal crimping tool. Background Technology
[0002] In photovoltaic systems, wiring harnesses are key components for energy transmission, and the sealing performance of their connections directly affects the system's stability and lifespan. Existing photovoltaic wiring harness connection structures often employ simple plug-in or threaded connections, resulting in poor sealing performance. In outdoor environments with rain and humidity, moisture can easily seep into the connection points, leading to poor contact, short circuits, or even equipment damage.
[0003] Meanwhile, existing tooling and equipment for crimping photovoltaic wire harnesses and waterproof terminals have several shortcomings: on the one hand, the low precision of worker feeding makes it difficult to ensure accurate positioning of the wire harness and waterproof terminals during crimping, leading to crimping deviations and affecting connection stability; on the other hand, the crimping force and angle control of the crimping mechanism are poor, easily resulting in insecure crimping or over-crimping that damages components, further reducing the sealing performance and reliability of the wire harness connection. Therefore, there is an urgent need for a high-sealing photovoltaic wire harness and its waterproof terminal crimping tooling. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a high-sealing photovoltaic wire harness and its waterproof terminal crimping tool, so as to solve the problems of poor sealing performance of existing photovoltaic wire harness connections, inaccurate positioning of crimping tool, and low crimping quality.
[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a high-sealing photovoltaic wire harness and its waterproof terminal crimping fixture is provided, including a wire harness adapter, one end of which is fixedly connected to a wire harness A, and the other end of which is fixedly connected to two wire harnesses B. The end faces of wire harness A and wire harness B are fixedly connected to positioning blocks for positioning during crimping operation and pushing and squeezing operation when connecting wire harnesses. A connecting part is fixedly connected to the end face of the positioning block on wire harness A. A connecting protrusion is pressed onto the end face of the connecting part. A connecting recess is opened on the end face of the positioning block on wire harness B, and the connecting recess is sleeved on the connecting protrusion. A sealing sleeve is fixedly connected to the end face of the connecting recess, and the sealing sleeve is tightly sleeved on the outer wall of the connecting part to achieve sealing at the terminal connection.
[0006] The present invention is further configured such that: a plurality of spring pieces are fixedly connected to the outer wall of the connecting part, the spring pieces are inclined and have a slot at the middle position, a pressing part is fixedly connected to the end face of the slot, and a retaining ring is fixedly connected to the inner wall of the sealing sleeve and is engaged with the slot by the retaining ring.
[0007] Through the above technical solution, during the fitting process of the sealing sleeve 17, the retaining ring 171 on its inner wall contacts the spring piece 141 on the outer wall of the connecting part 14. The spring piece 141 undergoes elastic deformation due to its inclined setting. When the retaining ring 171 moves to the position of the groove 142 of the spring piece 141, the spring piece 141 resets, and the retaining ring 171 engages in the groove 142, thereby fixing the sealing sleeve and the connecting part and completing the sealed connection of the wire harness. If it is necessary to separate the wire harness, press the pressing part 143 on the spring 141 to deform the spring 141, and the slot 142 will disengage from the retaining ring 171, so that the connecting protrusion 15 can be pulled out from the connecting recess 16.
[0008] A waterproof terminal crimping tool for a high-sealing photovoltaic wire harness is provided, including a substrate; Mounting plate mounted on top of the substrate; A crimping mechanism bolted to the side wall of the mounting plate enables crimping operations on photovoltaic wire harnesses and waterproof terminals; A feeding assembly mounted on the substrate enables precise feeding of inserted wire harnesses and waterproof terminals.
[0009] The present invention is further configured such that: the pressing mechanism includes a pressing cylinder bolted to the mounting plate; a push plate is bolted to the end face of the drive rod of the pressing cylinder; connecting guide rods are respectively provided through the bottom of the push plate near both ends; connecting plates are threaded to the bottom of the two connecting guide rods; and springs are wrapped around the outer walls of the two connecting guide rods; a pressure block is bolted to the bottom of the connecting plate; a pressing protrusion is provided at the center of the bottom of the pressure block; and slide blocks A are symmetrically bolted to the rear wall of the connecting plate near both ends; and the two slide blocks A are respectively slidably connected to two guide rails A mounted on the mounting plate.
[0010] With the above technical solution, the pressing mechanism 4 is activated, the pressing cylinder 41 drives the push plate 42 to move downward, and the push plate 42 drives the connecting plate 44 and the pressing block 46 to move downward through the connecting guide rod 43. At this time, the spring 45 is compressed. The crimping protrusion 47 at the bottom of the pressure block 46 engages with the crimping groove 521 of the placement seat 52 to complete the crimping operation of the wire harness and the waterproof terminal; during the crimping process, the connecting plate 44 slides along the guide rail A49 via the slide A48 to ensure the stability of the crimping direction.
[0011] The present invention is further configured such that: the rear wall of the pressing cylinder is bolted to a reinforcing corner block, and the other side of the reinforcing corner block is bolted to the top of the mounting plate.
[0012] The above technical solution facilitates the stable installation of the crimping cylinder on the mounting plate, providing robust stability for the crimping operation.
[0013] The present invention is further configured such that: the feeding assembly includes a feeding cylinder bolted to the rear of the mounting plate, the end face of the drive rod of the feeding cylinder is bolted to a placement seat, the top of the placement seat is provided with a pressing groove, and the pressing groove is adapted to the pressing protrusion, the bottom of the placement seat is bolted to a slide B, and the bottom of the slide B is slidably connected to a guide rail B mounted on the substrate.
[0014] By using the above technical solution, the positioning block 13 of the photovoltaic wire harness to be crimped is placed into the positioning groove 522 of the placement seat 52 in the crimping fixture, thereby achieving the initial positioning of the wire harness. Place the waterproof terminal into the crimping groove 521 of the placement base 52, ensuring that the waterproof terminal is aligned with the crimping part of the wire harness; Start the feeding assembly 5. The feeding cylinder 51 drives the placement seat 52 to slide along the guide rail B54 via the slide B53, and accurately pushes the placement seat 52 directly below the pressing mechanism 4.
[0015] The present invention is further configured such that: a positioning groove is provided at the bottom of the placement seat and at the end face of the pressing groove, so as to position and fix the positioning block.
[0016] The above technical solution facilitates the stable placement of the positioning block on the wire harness inside the positioning groove during the crimping operation.
[0017] The beneficial effects of this utility model are as follows: 1. The high-sealing photovoltaic wire harness and its waterproof terminal crimping tool proposed in this utility model improves the sealing performance of the wire harness connection through a multi-seal structure: the connection part of wire harness A and wire harness B adopts a double seal with the connection protrusion and connection concave sleeve and the sealing sleeve tightly wrapping the connection part. At the same time, the slot of the spring piece and the retaining ring of the sealing sleeve engage to form a third layer of fixed seal, which effectively prevents moisture from seeping in and significantly improves the adaptability of the wire harness in complex outdoor environments. 2. The high-sealing photovoltaic wire harness and its waterproof terminal crimping fixture proposed in this utility model have high compatibility between the wire harness structure and the crimping fixture. The crimping fixture can accurately match the positioning block, connecting part and other structures of the wire harness, ensuring stable sealing performance of the wire harness connection part after crimping, reducing the risk of sealing failure caused by crimping deviation, and improving the overall stability of the photovoltaic system. 3. The feeding assembly of the high-sealing photovoltaic wire harness and its waterproof terminal crimping fixture proposed in this utility model is driven by a feeding cylinder to move the placement seat along the guide rail B. Combined with the positioning groove to fix the positioning block, the wire harness and waterproof terminal are accurately fed. The crimping mechanism is driven by a crimping cylinder and guided by the slide A and the guide rail A to ensure the stability of the crimping direction. The spring buffer structure avoids over-crimping, which greatly improves the accuracy and stability of crimping. At the same time, the reinforced corner block enhances the installation strength of the crimping cylinder and further ensures the reliability of the crimping process. Attached Figure Description
[0018] Figure 1 This is a first structural diagram of a high-sealing photovoltaic wire harness according to the present invention; Figure 2 This is a second structural diagram of a high-sealing photovoltaic wire harness according to the present invention; Figure 3 This is a first structural diagram of a waterproof terminal crimping fixture for a high-sealing photovoltaic wire harness according to this utility model; Figure 4 This is a second structural diagram of a waterproof terminal crimping fixture for a high-sealing photovoltaic wire harness according to this utility model; Figure 5 This is a first structural diagram of the crimping mechanism in this utility model; Figure 6 This is a second structural diagram of the crimping mechanism in this utility model; Figure 7 This is a structural diagram of the feeding component in this utility model.
[0019] In the diagram: 1. Wire harness adapter; 11. Wire harness A; 12. Wire harness B; 13. Positioning block; 14. Connecting part; 141. Spring; 142. Slot; 143. Pressing part; 15. Connecting protrusion; 16. Connecting recess; 17. Sealing sleeve; 171. Snap ring; 2. Base plate; 3. Mounting plate; 4. Crimping mechanism; 41. Crimping cylinder; 411. Reinforcing corner block; 42. Push plate; 43. Connecting guide rod; 44. Connecting plate; 45. Spring; 46. Pressing block; 47. Crimping protrusion; 48. Slide A; 49. Guide rail A; 5. Feeding assembly; 51. Feeding cylinder; 52. Placement seat; 521. Crimping groove; 522. Positioning groove; 53. Slide B; 54. Guide rail B. Detailed Implementation
[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0021] like Figure 1 and Figure 2As shown, a high-sealing photovoltaic wire harness includes a wire harness adapter 1. One end of the wire harness adapter 1 is fixedly connected to a wire harness A11, and the other end is fixedly connected to two wire harnesses B12. The end faces of wire harness A11 and wire harness B12 are fixedly connected to positioning blocks 13, which are used for positioning during crimping operations and pushing and squeezing operations when connecting wire harnesses. A connecting part 14 is fixedly connected to the end face of the positioning block 13 on wire harness A11. A connecting protrusion 15 is pressed onto the end face of the connecting part 14. A connecting recess 16 is opened on the end face of the positioning block 13 on wire harness B12. The connecting recess 16 is sleeved on the connecting protrusion 15. A sealing sleeve 17 is fixedly connected to the end face of the connecting recess 16. The sealing sleeve 17 is tightly sleeved on the outer wall of the connecting part 14 to achieve sealing at the terminal connection. Multiple spring pieces 141 are fixedly connected to the outer wall of the connecting part 14. The spring pieces 141 are inclined and have a slot 142 at the middle position. A pressing part 143 is fixedly connected to the end face of the slot 142. A retaining ring 171 is fixedly connected to the inner wall of the sealing sleeve 17 and is engaged with the slot 142 through the retaining ring 171. During the process of fitting the sealing sleeve 17, the retaining ring 171 on its inner wall contacts the spring piece 141 on the outer wall of the connecting part 14. The spring piece 141 undergoes elastic deformation due to its inclined setting. When the retaining ring 171 moves to the slot 142 position of the spring piece 141, the spring piece 141 resets and the retaining ring 171 engages in the slot 142, thereby fixing the sealing sleeve 17 to the connecting part 14 and completing the sealed connection of the wire harness. If it is necessary to separate the wire harness, press the pressing part 143 on the spring 141 to deform the spring 141, and the slot 142 will disengage from the retaining ring 171, so that the connecting protrusion 15 can be pulled out from the connecting recess 16.
[0022] like Figures 3-6As shown, a waterproof terminal crimping fixture for a high-sealing photovoltaic wire harness includes a base plate 2, a mounting plate 3 mounted on the top of the base plate 2, and a crimping mechanism 4 bolted to the side wall of the mounting plate 3 to perform crimping operations on the photovoltaic wire harness and the waterproof terminal. The crimping mechanism 4 includes a crimping cylinder 41 bolted to the mounting plate 3. A reinforcing corner block 411 is bolted to the rear wall of the crimping cylinder 41, and the other side of the reinforcing corner block 411 is bolted to the top of the mounting plate 3, so that the crimping cylinder 41 can be stably installed on the mounting plate 3, providing a firm and stable crimping operation. A push plate 42 is bolted to the end face of the drive rod of the crimping cylinder 41. A connecting guide rod 43 is respectively provided through the bottom of the push plate 42 near both ends. The bottom of the two connecting guide rods 43 is threaded to a connecting plate 44, and the outer walls of the two connecting guide rods 43 are both The package is equipped with a spring 45. A pressure block 46 is bolted to the bottom of the connecting plate 44. A pressing protrusion 47 is provided at the center of the bottom of the pressure block 46. Slide seats A48 are symmetrically bolted to the rear wall of the connecting plate 44 near both ends. The two slide seats A48 are slidably connected to two guide rails A49 mounted on the mounting plate 3. When the pressing mechanism 4 is activated, the pressing cylinder 41 drives the push plate 42 to move downward. The push plate 42 drives the connecting plate 44 and the pressure block 46 to move downward through the connecting guide rod 43. At this time, the spring 45 is compressed to play a buffering role and avoid damage to the components due to excessive instantaneous pressure. The pressing protrusion 47 at the bottom of the pressure block 46 cooperates with the pressing groove 521 of the placement seat 52 to complete the pressing operation of the wire harness and the waterproof terminal. During the pressing process, the connecting plate 44 slides along the guide rails A49 through the slide seats A48 to ensure the stability of the pressing direction.
[0023] like Figure 7As shown, the feeding assembly 5, mounted on the substrate 2, enables precise feeding of the inserted wire harness and waterproof terminal. The feeding assembly 5 includes a feeding cylinder 51 bolted to the rear of the mounting plate 3. The drive rod end face of the feeding cylinder 51 is bolted to a placement seat 52. The top of the placement seat 52 has a crimping groove 521, and the bottom of the placement seat 52, located at the end face of the crimping groove 521, has a positioning groove 522 for positioning and fixing the positioning block 13. This ensures that the positioning block 13 on the wire harness is stably placed inside the positioning groove 522 during the crimping operation, and the crimping groove 521 is adapted to the crimping protrusion 47. The bottom bolt of the placement seat 52 is bolted to the bottom of the placement seat 52. A slide block B53 is connected, and the bottom of the slide block B53 is slidably connected to the guide rail B54 mounted on the substrate 2. The photovoltaic wire harness to be crimped, including wire harness A11, wire harness B12 and positioning block 13, is placed into the positioning groove 522 of the placement seat 52 in the crimping fixture to achieve the initial positioning of the wire harness. The waterproof terminal is placed in the crimping groove 521 of the placement seat 52 to ensure that the waterproof terminal is aligned with the crimping part of the wire harness. The feeding component 5 is started, and the feeding cylinder 51 drives the placement seat 52 to slide along the guide rail B54 through the slide block B53, and accurately pushes the placement seat 52 to the bottom of the crimping mechanism 4 so that the crimping protrusion 47 is directly opposite the crimping groove 521.
[0024] In use, the positioning block 13 of the photovoltaic wire harness to be crimped (including wire harness A11, wire harness B12 and positioning block 13, etc.) is placed into the positioning groove 522 of the placement seat 52 in the crimping fixture to achieve the initial positioning of the wire harness. Place the waterproof terminal into the crimping groove 521 of the placement base 52, ensuring that the waterproof terminal is aligned with the crimping part of the wire harness; Start the feeding assembly 5, and the feeding cylinder 51 drives the placement seat 52 to slide along the guide rail B54 via the slide B53, accurately pushing the placement seat 52 directly below the pressing mechanism 4 (the pressing protrusion 47 is directly opposite the pressing groove 521). When the pressing mechanism 4 is activated, the pressing cylinder 41 drives the push plate 42 to move downward. The push plate 42 drives the connecting plate 44 and the pressing block 46 to move downward through the connecting guide rod 43. At this time, the spring 45 is compressed (which plays a buffering role to avoid damage to the parts due to excessive instantaneous pressure). The crimping protrusion 47 at the bottom of the pressure block 46 engages with the crimping groove 521 of the placement seat 52 to complete the crimping operation of the wire harness and the waterproof terminal; during the crimping process, the connecting plate 44 slides along the guide rail A49 via the slide A48 to ensure the stability of the crimping direction. After crimping is completed, the crimping cylinder 41 drives the push plate 42 to reset, the feeding cylinder 51 drives the placement seat 52 to reset, and the crimped wire harness is taken out. When connecting the wire harnesses, the positioning block 13 pushes the wire harnesses A11 and B12 closer to each other, so that the connecting protrusion 15 on the wire harness A11 is inserted into the connecting recess 16 on the wire harness B12, and at the same time, the sealing sleeve 17 on the end face of the connecting recess 16 is tightly fitted onto the outer wall of the connecting part 14. During the fitting process of the sealing sleeve 17, the retaining ring 171 on its inner wall contacts the spring piece 141 on the outer wall of the connecting part 14. The spring piece 141 undergoes elastic deformation due to its inclined setting. When the retaining ring 171 moves to the slot 142 position of the spring piece 141, the spring piece 141 resets, and the retaining ring 171 engages in the slot 142, thereby fixing the sealing sleeve 17 and the connecting part 14 and completing the sealed connection of the wire harness. If it is necessary to separate the wire harness, press the pressing part 143 on the spring 141 to deform the spring 141, and the slot 142 will disengage from the retaining ring 171, so that the connecting protrusion 15 can be pulled out from the connecting recess 16.
[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-sealing photovoltaic harness, comprising a harness adapter (1), characterized in that: One end of the wire harness adapter (1) is fixedly connected to a wire harness A (11), and the other end is fixedly connected to two wire harnesses B (12). The end faces of the wire harness A (11) and the wire harness B (12) are fixedly connected to positioning blocks (13), which are used for positioning during crimping operations and pushing and squeezing operations when connecting wire harnesses. A connecting part (14) is fixedly connected to the end face of the positioning block (13) on wire harness A (11). A connecting protrusion (15) is pressed onto the end face of the connecting part (14). A connecting recess (16) is opened on the end face of the positioning block (13) on wire harness B (12). The connecting recess (16) is sleeved on the connecting protrusion (15). A sealing sleeve (17) is fixedly connected to the end face of the connecting recess (16). The sealing sleeve (17) is tightly sleeved on the outer wall of the connecting part (14) to achieve sealing of the terminal connection.
2. The high-sealing photovoltaic wire harness according to claim 1, characterized in that: Multiple spring pieces (141) are fixedly connected to the outer wall of the connecting part (14). The spring pieces (141) are inclined and have a slot (142) in the middle position. A pressing part (143) is fixedly connected to the end face of the slot (142). A retaining ring (171) is fixedly connected to the inner wall of the sealing sleeve (17) and is engaged with the slot (142) by the retaining ring (171).
3. A waterproof terminal crimping tool for a high-sealing photovoltaic wire harness as described in claims 1-2, characterized in that: Including substrate (2); Mounting plate (3) mounted on top of substrate (2); A crimping mechanism (4) is bolted to the side wall of the mounting plate (3) to perform crimping operations on the photovoltaic wire harness and waterproof terminals; The feeding assembly (5) is mounted on the substrate (2) to achieve precise feeding of the inserted wire harness and waterproof terminal.
4. The waterproof terminal crimping fixture for a high-sealing photovoltaic wire harness according to claim 3, characterized in that: The crimping mechanism (4) includes a crimping cylinder (41) bolted to the mounting plate (3). The drive rod end face of the crimping cylinder (41) is bolted to a push plate (42). The bottom of the push plate (42) is provided with connecting guide rods (43) through the two ends. The bottom of the two connecting guide rods (43) is threaded to a connecting plate (44). The outer walls of the two connecting guide rods (43) are wrapped with springs (45). The bottom of the connecting plate (44) is bolted to a pressure block (46). The bottom center of the pressure block (46) is provided with a crimping protrusion (47). The rear wall of the connecting plate (44) is symmetrically bolted to a slide block A (48) near the two ends. The two slide blocks A (48) are slidably connected to two guide rails A (49) mounted on the mounting plate (3).
5. The waterproof terminal crimping fixture for a high-sealing photovoltaic wire harness according to claim 4, characterized in that: The rear wall of the pressing cylinder (41) is bolted to a reinforcing corner block (411), and the other side of the reinforcing corner block (411) is bolted to the top of the mounting plate (3).
6. The waterproof terminal crimping fixture for a high-sealing photovoltaic wire harness according to claim 4, characterized in that: The feeding assembly (5) includes a feeding cylinder (51) bolted to the rear of the mounting plate (3). The end face of the drive rod of the feeding cylinder (51) is bolted to a placement seat (52). The top of the placement seat (52) is provided with a pressing groove (521), and the pressing groove (521) is adapted to the pressing protrusion (47). The bottom of the placement seat (52) is bolted to a slide B (53), and the bottom of the slide B (53) is slidably connected to a guide rail B (54) mounted on the base plate (2).
7. The waterproof terminal crimping fixture for a high-sealing photovoltaic wire harness according to claim 6, characterized in that: The bottom of the placement seat (52) and the end face of the pressing groove (521) are provided with a positioning groove (522) to position and fix the positioning block (13).