Junction box for small fast-assembly generator stator outgoing line

Abstract

The utility model provides a junction box for a small-sized fast-assembly generator stator outgoing line, and relates to the technical field of junction boxes of steam turbine generators. According to the technical scheme, the junction box for the small fast-assembly generator stator outgoing line comprises a junction box base, a junction sleeve is arranged on the junction box base, the junction sleeve is communicated with the junction box base, a protection plate is fixed to the junction sleeve, and a lead hole is formed in the protection plate. The beneficial effects of the utility model are that the lead hole is simple in structure, stable and durable in clamping force, and not easy to age. And the size of the lead hole is matched with that of the lead wire, so that tight fixation of the lead wire is ensured, the risk of loosening or falling off is effectively avoided, and a powerful guarantee is provided for stable operation of the generator.

Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes of steam turbine generators, in particular to a junction box for stator lead-out wires of a small-sized quick-assembled generator. Background Art

[0002] The junction box of the small quick-install generator stator lead wire, as an important part of the generator, its importance cannot be ignored. The junction box not only undertakes the key task of connecting the stator lead wire, but also ensures the stability and safety of power transmission. It has a sophisticated design and compact structure. It can be quickly installed and form a stable connection with the generator stator lead wire, which greatly improves work efficiency. At the same time, the junction box has good electrical performance, which ensures the smooth transmission of current and avoids safety hazards caused by poor contact or aging of lines. In addition, the junction box also has waterproof, dustproof and other protective functions to ensure stable operation in various harsh environments. Therefore, the importance of the junction box is not only reflected in its functionality, but also in that it provides a solid guarantee for the stable operation of the generator, and is an indispensable part of the generator system.

[0003] The existing junction box is manufactured by an integrated casting process, and a mounting platform is fixed at the bottom thereof, on which a wire clamp is fixed. The wire clamp can clamp and fix the stator lead wire of a small quick-install generator, thereby ensuring the reliability and safety of power transmission.

[0004] However, in actual use, the wire clamp has a complex structure, which is not conducive to installation and maintenance. During long-term use, the wire clamp may cause the lead wire to loosen or fall off due to improper tightening force or material aging, thereby causing safety hazards. Summary of the invention

[0005] The utility model aims at solving the problem that the lead wires cannot be effectively fixed due to the possible failure of the wire clamps, and provides a small quick-installed junction box for the stator lead wires of a generator, which can achieve the goal of effectively fixing the lead wires without the need for wire clamps.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is a junction box for the stator lead-out wire of a small quick-install generator, including a junction box seat, a junction box seat is provided with a junction sleeve, the junction sleeve is connected to the junction box seat, a protective plate is fixed on the junction sleeve, and a lead hole is provided on the protective plate. The stator lead-out wire of the small quick-install generator is led out through the junction box seat, then passes through the junction sleeve, and finally passes out from the lead hole on the protective plate. The size of the lead hole is adapted to the lead wire, so as to ensure that the lead wire can be firmly clamped and fixed. When faced with lead wires of different sizes, it is only necessary to replace the protective plate with a lead hole matching the size. In summary, the lead hole has a simple structure, a stable and long-lasting clamping force, and is not easy to age. The adaptability of its size to the lead wire not only ensures the tight fixation of the lead wire, but also more effectively avoids the risk of loosening or falling off, providing a strong guarantee for the stable operation of the generator.

[0007] Preferably, a rectangular notch is provided at the bottom of the junction box seat, and the terminal of the stator lead-out wire of the small quick-install generator can enter the interior of the junction box seat through the rectangular notch.

[0008] Preferably, the bottom of the junction box seat is also provided with fixing holes, which are distributed around the rectangular notch, and a junction box cover is fixed on the junction box seat, and the junction box cover is provided with through holes, and the number and size of the through holes are the same as those of the fixing holes. The junction box cover can protect the small quick-install generator stator lead wires in the junction box seat, thereby preventing the staff from accidentally touching them during operation, ensuring safe operation.

[0009] Preferably, the wiring sleeve is provided with an adjustment hole, and the position of the adjustment hole is opposite to the lead hole. When the protection plate is replaced, resulting in a change in the size of the lead hole, the adjustment hole ensures that the lead wire can always pass through the lead hole smoothly, thereby ensuring stable transmission of power.

[0010] Preferably, the adjustment hole is oblong and the lead hole is circular. The lead hole is set to be circular, which can effectively fix the stator lead wire of the small quick-install generator. The adjustment hole is oblong, so that when replacing the protection plate with lead holes of different sizes, the stator lead wire of the small quick-install generator can easily pass through the adjustment hole, thereby achieving convenient replacement and flexible adaptation.

[0011] Preferably, a sealing ring is installed on the lead hole, which can effectively isolate external dust and moisture and prevent them from invading the inside of the junction box seat, thereby ensuring the electrical safety inside the junction box seat and avoiding potential risks such as electrical connection.

[0012] Preferably, the material of the junction box seat, the junction box cover and the junction sleeve is Q235B. The junction box seat, the junction box cover and the junction sleeve are all made of Q235B material, which not only achieves light weight, but also significantly improves the strength of the overall structure, ensuring the safety and durability of the equipment.

[0013] Preferably, the material of the protection plate is 3240 epoxy plate. The protection plate is made of 3240 epoxy plate material, and its excellent electrical insulation performance provides safe and reliable protection for the stator lead wire of the small quick-install generator.

[0014] It can be seen from the above technical solutions that the advantages of the utility model are: the size of the lead-in hole is adapted to the lead-out wire, thereby ensuring that the lead-out wire can be firmly clamped and fixed, effectively preventing loosening or falling off. When the size of the lead-out wire changes, it is only necessary to replace the protective plate of the corresponding size, which is simple and quick to operate. In addition, the protective plate is made of insulating material to fully guarantee personnel safety. In summary, the lead-in hole has a simple structure, the clamping force is stable and long-lasting, and it is not easy to age. The size of the lead-in hole is adapted to the lead-out wire, which not only ensures the tight fixation of the lead-out wire, but also more effectively avoids the risk of loosening or falling off, providing a strong guarantee for the stable operation of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0017] Figure 2 It is a structural schematic diagram of a junction box seat in a specific implementation manner of the utility model.

[0018] Figure 3 It is a front view of the junction box seat in a specific implementation manner of the utility model.

[0019] Figure 4 It is a top view of the junction box seat in a specific implementation manner of the utility model.

[0020] Figure 5 It is a schematic diagram of the structure of the wiring sleeve in a specific implementation manner of the utility model.

[0021] Figure 6 It is a front view of the wiring sleeve in a specific implementation manner of the utility model.

[0022] Figure 7 It is a schematic diagram of the structure of the protection plate in a specific implementation manner of the utility model.

[0023] Description of main reference numerals

[0024] In the figure: 1. junction box seat, 11. rectangular notch, 12. connecting port, 13. connecting hole one, 14. fixing hole, 2. junction box cover, 3. junction sleeve, 31. connecting hole two, 32. adjusting hole, 33. connecting hole three, 34. connecting plate, 35. connecting tube, 4. protective plate, 41. lead hole, 42. connecting hole four. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] A small quick-install generator stator lead-out terminal box, such as Figure 1 As shown, it includes a junction box seat 1, and the connector of the stator lead wire of the small quick-installed generator is located inside the junction box seat 1. A junction sleeve 3 is provided on the junction box seat 1, and the junction sleeve 3 is connected to the junction box seat 1. The junction sleeve 3 can guide and protect the stator lead wire of the small quick-installed generator. A protection plate 4 is fixed to the junction sleeve 3 by bolts, and a lead hole 41 is provided on the protection plate 4, and the lead hole 41 can clamp and fix the stator lead wire of the small quick-installed generator.

[0027] like Figure 2-4 As shown, in this specific embodiment, the junction box seat 1 specifically adopts the following structure: the junction box seat 1 is a rectangular shell, and the material used for the junction box seat 1 is Q235B, which is light in weight, safe and durable. A rectangular notch 11 is provided at the bottom of the junction box seat 1, and the terminal of the stator lead wire of the small quick-installed generator can enter the inside of the junction box seat 1 through the rectangular notch 11. Through holes are provided at the four corners of the bottom of the junction box seat 1, and bolts are installed in the through holes. The junction box seat 1 is fixed to the small quick-installed generator by bolts. The bottom of the junction box seat 1 is also provided with fixing holes 14, which are distributed around the rectangular notch 11, and bolts are installed in the fixing holes 14. A junction box cover 2 is installed on the top of the junction box seat 1, and the material used for the junction box cover 2 is Q235B. Through holes are provided on the junction box cover 2, and the number and size of the through holes are the same as those of the fixing holes 14. The bolts in the fixing holes 14 pass through the through holes on the junction box cover 2 to fix the junction box cover 2 on the junction box seat 1.

[0028] A connecting port 12 is provided on one side of the junction box seat 1, and the stator lead wire of the small quick-installed generator inside the junction box seat 1 can enter the junction sleeve 3 through the connecting port 12. Connecting holes 13 are provided on both sides of the connecting port 12, and the connecting holes 13 are used to connect and fix the junction sleeve 3.

[0029] The material used for the wiring sleeve 3 is Q235B. Figure 5 , 6 As shown, in this specific embodiment, the wiring sleeve 3 specifically adopts the following structure: the wiring sleeve 3 includes a connecting tube 35, the connecting tube 35 is in a prism shape, a connecting plate 34 is welded to the larger end of the connecting tube 35, and a connecting hole 2 31 is provided on the connecting plate 34, and the number and size of the connecting hole 2 31 are the same as the connecting hole 1 13. An adjustment hole 32 is provided at the smaller end of the connecting tube 35, and the adjustment hole 32 is in an oblong shape. The three connecting holes 33 are provided around the adjusting hole 32, and bolts are installed in the three connecting holes 33.

[0030] like Figure 7 As shown, in this specific embodiment, the protective plate 4 specifically adopts the following structure: the protective plate 4 is set to a rectangular shape, and the material used is 3240 epoxy board, and the 3240 epoxy board has excellent electrical insulation performance. The lead hole 41 on the protective plate 4 is set to a circular shape, and the size of the lead hole 41 matches the size of the stator lead wire of the small quick-installed generator, and the position adjustment hole 32 of the lead hole 41 is opposite to ensure that the stator lead wire of the small quick-installed generator can pass through the adjustment hole 32 and the lead hole 41 in turn. A sealing ring is installed on the lead hole 41, and the sealing ring can effectively isolate external dust and moisture to prevent them from invading the wiring sleeve 3. Connecting holes 42 are arranged around the lead hole 41, and bolts pass through the connecting hole 33 and the connecting hole 42 in turn, so that the protective plate 4 can be fixed on the wiring sleeve 3.

[0031] The specific use process of the utility model is as follows: first, pass the bolts through the connection hole 13 and the connection hole 2 31 to fix the junction box seat 1 and the junction sleeve 3 together. Then pass the bolts through the connection hole 3 33 and the connection hole 4 42 to fix the junction sleeve 3 and the protective plate 4 together. Next, buckle the junction box seat 1 on the terminal post of the small quick-install generator stator lead wire so that it can smoothly pass through the rectangular notch 11 into the inside of the junction box seat 1. Then, connect one end of the small quick-install generator stator lead wire to the terminal post, and the other end passes through the connecting port 12 and the adjustment hole 32 in sequence, and finally passes through the lead hole 41. Finally, buckle the junction box cover 2 firmly on the junction box seat 1 and tighten it with bolts to complete the entire installation process. If you need to adapt to small quick-install generator stator lead wires of different sizes, you only need to replace the protective plate 4 with the lead hole 41 of the corresponding size.

[0032] It can be seen from the above embodiments that the beneficial effect of the utility model is that the size of the lead-in hole is adapted to the lead-out wire, thereby ensuring that the lead-out wire can be firmly clamped and fixed, effectively preventing loosening or falling off. When the size of the lead-out wire changes, it is only necessary to replace the protective plate of the corresponding size, which is simple and quick to operate. In addition, the protective plate is made of insulating material to fully guarantee personnel safety. In summary, the lead-in hole has a simple structure, the clamping force is stable and long-lasting, and it is not easy to age. The size of the lead-in hole is adapted to the lead-out wire, which not only ensures the tight fixation of the lead-out wire, but also more effectively avoids the risk of loosening or falling off, providing a strong guarantee for the stable operation of the generator.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A small quick-install generator stator lead-out terminal box, characterized in that: The invention comprises a junction box seat (1), a junction box seat (1) is provided with a junction sleeve (3), the junction sleeve (3) is connected to the junction box seat (1), a protection plate (4) is fixed on the junction sleeve (3), and a lead hole (41) is provided on the protection plate (4).

2. The terminal box for stator lead wires of a small-sized quick-install generator according to claim 1 is characterized in that: A rectangular notch (11) is provided at the bottom of the junction box seat (1).

3. The terminal box for stator lead wires of a small-sized quick-install generator according to claim 2, characterized in that: The bottom of the junction box seat (1) is also provided with fixing holes (14), which are distributed around the rectangular notch (11). A junction box cover (2) is fixed on the junction box seat (1), and the junction box cover (2) is provided with through holes, the number and size of the through holes being the same as those of the fixing holes (14).

4. The terminal box for stator lead wires of a small-sized quick-install generator according to claim 1, characterized in that: The wiring sleeve (3) is provided with an adjustment hole (32), and the position of the adjustment hole (32) is opposite to the lead-in hole (41).

5. The terminal box for stator lead wires of a small-sized quick-install generator according to claim 4, characterized in that: The adjustment hole (32) is in the shape of an oblong circle, and the lead hole (41) is in the shape of a circle.

6. The terminal box for stator lead wires of a small-sized quick-install generator according to claim 1, characterized in that: A sealing ring is installed on the lead-in hole (41).

7. The terminal box for stator lead wires of a small-sized quick-install generator according to claim 3, characterized in that: The material of the junction box seat (1), the junction box cover (2) and the junction sleeve (3) is Q235B.

8. The terminal box for stator lead wires of a small-sized quick-install generator according to claim 1, characterized in that: The material of the protection plate (4) is 3240 epoxy plate.

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