A traction reactor group integrated with a monorail locomotive with IP55 level wiring shell

By enclosing the reactor terminals with components such as IP55-rated wiring housings and sealing materials on the monorail vehicle platform, the problems of leakage and exposed connection points in high-temperature and high-humidity environments were solved, and the safe and reliable operation of the reactor was achieved.

CN224384022UActive Publication Date: 2026-06-19BOMBARDIER NUG PROPULSION SYST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BOMBARDIER NUG PROPULSION SYST CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing traction reactor integrations for monorail vehicle platforms are unsuitable for the hot and humid tropical rainforest climate, posing a risk of electrical leakage and exposed electrical connection points.

Method used

The reactor terminals are enclosed in an IP55-rated enclosure. The enclosure, consisting of an insulating board, sealing material, and adhesive heat shrink tubing, forms a sealed protective structure that ensures complete sealing of the terminals, making it suitable for high-temperature and high-humidity environments.

Benefits of technology

It achieves complete sealing of reactor terminals in high temperature and high humidity environments, preventing leakage and the intrusion of dust and moisture, thus improving the safety and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of single track vehicle electric reactor integration, especially single track locomotive traction electric reactor group integration with IP55 level wiring shell, four wiring rows of first electric reactor and second electric reactor are positioned and installed through insulator and board and electric reactor mounting support, four wiring rows pass through four long round holes of insulating plate, the bottom plate of wiring shell is formed after insulating plate and box body are fixed, wiring shell is added on insulating plate, and the structure that the sealing material is arranged between insulating plate and wiring shell reaches that the wiring terminal of electric reactor can be all closed in IP55 level wiring shell inside, can be applicable to the effect that single track vehicle is under the climatic condition of high temperature and high humidity of tropical rain forest.
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Description

Technical Field

[0001] This utility model relates to the technical field of reactor integration for monorail vehicles, and more particularly to an integrated traction reactor assembly for monorail locomotives with an IP55-rated wiring housing. Background Technology

[0002] The existing Line Reactor Assembly (LRA) for monorail vehicle platforms consists of two identical reactors directly installed inside a grid enclosure. User cables connect directly to the reactors within the enclosure. Because the electrical connection points are completely exposed to the air and lack dust and water protection, there is a risk of electrical leakage in harsh weather conditions or highly polluted environments. Furthermore, since the reactor terminals are positioned by the coil winding angle, the positioning error is significant, making it impossible to enclose them in a protected junction box. Therefore, the existing LRA solution for monorail vehicle platforms is unsuitable for hot and humid tropical rainforest climates such as São Paulo, Brazil, and Monterrey, Mexico. Utility Model Content

[0003] The purpose of this invention is to address the deficiencies in the existing technology by providing an integrated traction reactor assembly for monorail locomotives with an IP55-rated wiring enclosure. This allows the reactor's wiring terminals to be completely enclosed within the IP55-rated wiring enclosure, making it suitable for monorail vehicles operating in hot and humid tropical rainforest climates.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a housing, a first reactor, a second reactor, an insulating plate, a wiring housing, sealing material, a reactor mounting bracket, a plate, an insulator, and terminal blocks; the four terminal blocks of the first reactor and the second reactor are positioned and installed with the reactor mounting bracket through the insulator and the plate; the four terminal blocks pass through four elongated holes machined in the insulating plate, and the insulating plate forms the base plate of the wiring housing after being fixed to the housing, the wiring housing is mounted on the insulating plate, and a sealing material is provided between the insulating plate and the wiring housing.

[0005] Furthermore, the portions of the four terminal blocks outside the terminal housing are fitted with adhesive heat shrink tubing for heating and tightening.

[0006] Furthermore, one end of the adhesive heat shrink tubing overlaps with the outer insulation of the reactor conductor, and the other end passes through four rectangular holes machined on the insulation board and overlaps with the insulation board.

[0007] Furthermore, the gap between the adhesive-coated heat shrink tubing and the insulating board is coated with sealant.

[0008] Furthermore, the first reactor and the second reactor are subjected to insulating and waterproof impregnation treatment.

[0009] Furthermore, the terminal block used for conductive connection is completely enclosed inside the terminal housing.

[0010] Furthermore, the cable used for connection passes through the wire pass nut and then through the wire pass nut mounting hole on the wiring housing to enter the wiring housing and connect to the terminal block.

[0011] Furthermore, a box cover is provided on the outside of the box.

[0012] Furthermore, the assembly deviation of the four terminal blocks of the first reactor and the second reactor being positioned and assembled with the reactor mounting bracket via the insulator and the plate is less than 1mm.

[0013] The system comprises a housing, a first reactor, a second reactor, an insulating plate, a wiring housing, sealing material, a reactor mounting bracket, a plate, insulators, and terminal blocks. The four terminal blocks of the first and second reactors are positioned and assembled with the reactor mounting bracket via the insulators and the plate. The four terminal blocks pass through four elongated holes machined in the insulating plate. After the insulating plate is fixed to the housing, it forms the base plate of the wiring housing. The wiring housing is mounted on the insulating plate, and a sealing material is provided between the insulating plate and the wiring housing. This structure ensures that the reactor terminals are completely enclosed within the IP55-rated wiring housing, making it suitable for monorail vehicles operating in hot and humid tropical rainforest climates. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is an integrated perspective view of the traction reactor assembly for monorail locomotives with an IP55-rated wiring housing according to this utility model.

[0016] Figure 2 This is an exploded view of the integrated traction reactor assembly for monorail locomotives with an IP55-rated wiring housing, according to this utility model.

[0017] Figure 3 This is a schematic diagram of the reactor mounting bracket of this utility model.

[0018] Figure label:

[0019] 1. Enclosure; 2. First reactor; 3. Second reactor; 4. Insulating board; 5. Wiring housing; 6. Enclosure cover; 7. Wire nut; 8. Sealing material; 9. Reactor mounting bracket; 10. Plate; 11. Insulator; 12. Terminal block; 13. Adhesive heat shrink tubing. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] An integrated traction reactor assembly for monorail locomotives with an IP55-rated wiring enclosure, such as... Figures 1-3 As shown, the device includes a housing 1, a first reactor 2, a second reactor 3, an insulating plate 4, a wiring housing 5, a sealing material 8, a reactor mounting bracket 9, a plate 10, an insulator 11, and terminal blocks 12. The four terminal blocks 12 of the first reactor 2 and the second reactor 3 are positioned and assembled with the reactor mounting bracket 9 through the insulator 11 and the plate 10. The four terminal blocks 12 pass through four elongated holes machined on the insulating plate 4. After the insulating plate 4 is fixed to the housing 1, it forms the base plate of the wiring housing 5. The wiring housing 5 is mounted on the insulating plate 4, and a sealing material 8 is provided between the insulating plate 4 and the wiring housing 5.

[0023] Specifically, the terminal blocks 12 of the first reactor 2 and the second reactor 3 are precisely positioned and assembled with the reactor mounting bracket 9 through the insulator 11 and plate 10, eliminating the positioning error of the winding angle and providing a basis for sealing protection; the terminal housing 5 and the insulating plate 4 are pressed together by the sealing material 8 to form an IP55-level protective cavity, which completely seals the exposed terminal block 12 and prevents dust and moisture from entering; four elongated holes are machined on the insulating plate 4 to allow the terminal block 12 to be slightly adjusted in position during installation, compatible with assembly tolerances, and ensure that the sealing material 8 is evenly pressurized and does not fail.

[0024] As a preferred embodiment of the above, such as Figures 1-3 As shown, the four terminal blocks 12 are fitted with adhesive heat shrink tubing 13 on the outer part of the terminal housing 5 and heated to tighten.

[0025] Specifically, after the heat shrink tubing 13 is heated and tightened, it tightly wraps the exposed section of the terminal block 12 that extends out of the wiring housing 5, completely filling the microscopic gap between the elongated hole of the insulating plate 4 and the terminal block 12, forming a double sealing barrier; the hot melt adhesive on its inner wall flows when heated, completely adhering to the irregular parts of the surface of the terminal block 12, preventing moisture and dust from seeping in along the metal surface.

[0026] As a preferred embodiment of the above, such as Figures 1-3 As shown, one end of the adhesive heat shrink tubing 13 is insulated and overlapped with the outer casing of the reactor wire, and the other end passes through the four rectangular holes machined on the insulating plate 4 and overlaps with the insulating plate 4.

[0027] Specifically, the heat shrink tubing 13 is fused with the insulation layers of the conductors of the first reactor 2 and the second reactor 3 at one end, preventing moisture from entering the terminal block 12 from the conductor side. The heat shrink tubing 13 is also fused with the insulation layer of the insulating plate 4 at the other end, covering the edge of the elongated hole of the insulating plate 4 and forming a complementary sealing layer with the sealing material 8, completely blocking dust and moisture from seeping into the terminal housing 5 through the gap of the elongated hole. The two ends of the heat shrink tubing 13 are anchored to the conductor insulation layer and the insulating plate 4 respectively, to prevent relative displacement between the heat shrink tubing 13 and the terminal block 12 caused by train vibration, thus maintaining the integrity of the seal. The heat shrink tubing 13 is first inserted into the terminal block 12, then passed through the elongated hole of the insulating plate 4, and finally heated and shaped, which is compatible with the existing assembly process and does not require additional steps.

[0028] As a preferred embodiment of the above, such as Figures 1-3 As shown, the gap between the adhesive heat shrink tubing 13 and the insulating plate 4 is coated with sealant.

[0029] Specifically, the gap between the heat shrink tubing 13 and the insulating board 4 is filled with sealant: this fills the uneven area of ​​the contact surface between the two, preventing moisture from seeping into the wiring housing 5 through capillary action; the sealant and the adhesive-coated heat shrink tubing 13 form a composite material barrier: resisting high-pressure water jets and preventing moisture from forcibly intruding from the interface; blocking salt spray, dust and other pollutants from intruding into the wiring bar 12 under vibration environment, ensuring the long-term insulation of the insulator 11.

[0030] As a preferred embodiment of the above, such as Figures 1-3 As shown, the first reactor 2 and the second reactor 3 are treated with insulating and waterproof varnish.

[0031] As a preferred embodiment of the above, such as Figures 1-3 As shown, the terminal block 12 used for conductive connection is completely enclosed inside the terminal housing 5.

[0032] Specifically, the insulation and waterproofing of the first reactor 2 and the second reactor 3 are treated with varnish: a dense polymer coating is formed on the winding surface to block moisture from entering the coil and prevent the risk of insulation degradation of the reactor due to moisture; the terminal block 12 is completely enclosed inside the terminal housing 5: all conductive parts are completely exposed, completely eliminating the risk of creepage and short circuit caused by dust accumulation or condensation; combined with the sealing material 8, the adhesive heat shrink tubing 13 and the sealant, a dry environment is achieved inside the terminal housing 5.

[0033] As a preferred embodiment of the above, such as Figures 1-3 As shown, the cable used for connection passes through the wire pass nut 7 and then through the wire pass nut mounting hole on the wiring housing 5 to enter the wiring housing 5 and connect to the terminal block 12.

[0034] Specifically, the cable outer sheath is pressed by the wire pass nut 7, and radial pressure is generated by tightening the thread, so that the cable sheath and the inner wall of the wire pass nut 7 form a compression seal, preventing water vapor and dust from entering the terminal housing 5 along the gap of the cable sheath; the wire pass nut 7 mechanically locks the cable, preventing the connection point between the cable and the terminal block 12 from loosening due to train vibration, and protecting the insulator 11 from additional stress.

[0035] As a preferred embodiment of the above, such as Figures 1-3 As shown, a box cover plate 6 is provided on the outside of the box body 1.

[0036] Specifically, the enclosure cover 6 forms a complete closed structure with the enclosure 1, providing an additional physical barrier for the first reactor 2 and the second reactor 3 inside, blocking external mechanical impact, foreign object intrusion and ultraviolet radiation, and extending the life of the reactors; during maintenance, there is no need to completely disassemble the enclosure 1, and the reactor body can be accessed directly by opening the cover, which improves maintenance efficiency; the independent disassembly and assembly of the cover does not interfere with the wiring outer shell 5 and the internal sealing structure.

[0037] As a preferred embodiment of the above, such as Figures 1-3 As shown, the assembly deviation of the four terminal blocks 12 of the first reactor 2 and the second reactor 3 in positioning and mounting with the reactor mounting bracket 9 via the insulator 11 and the plate 10 is less than 1mm.

[0038] Specifically, the terminal blocks 12 of the first reactor 2 and the second reactor 3 are precisely positioned and assembled with the reactor mounting bracket 9 through the insulator 11 and the plate 10, eliminating the original winding angle positioning error and providing a basis for sealing protection; the terminal housing 5 and the insulating plate 4 are pressed together by the sealing material 8 to form an IP55-level protective cavity, which completely seals the exposed terminal block 12 and prevents dust and moisture from entering.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure, characterized in that: Includes enclosure (1), first reactor (2), second reactor (3), insulation board (4), wiring housing (5), sealing material (8), reactor mounting bracket (9), plate (10), insulator (11), and terminal block (12); The four terminal blocks (12) of the first reactor (2) and the second reactor (3) are positioned and installed with the reactor mounting bracket (9) through the insulator (11) and the plate (10); The four terminal blocks (12) pass through the four elongated holes machined on the insulating plate (4). After the insulating plate (4) is fixed to the housing (1), it forms the base plate of the wiring housing (5). The wiring housing (5) is mounted on the insulating plate (4). A sealing material (8) is provided between the insulating plate (4) and the wiring housing (5).

2. The integrated traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure according to claim 1, characterized in that, The four terminal blocks (12) are fitted with adhesive heat shrink tubing (13) on the portion outside the terminal housing (5) and heated to tighten.

3. The traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure as described in claim 2, characterized in that, One end of the adhesive heat shrink tubing (13) is insulated and overlapped with the outer casing of the reactor conductor, and the other end passes through the four rectangular holes machined on the insulating plate (4) and overlaps with the insulating plate (4).

4. The traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure as described in claim 3, characterized in that, The gap between the adhesive heat shrink tubing (13) and the insulating plate (4) is coated with sealant.

5. The traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure as described in claim 1, characterized in that, The first reactor (2) and the second reactor (3) are treated with insulating and waterproof varnish.

6. The traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure as described in claim 1, characterized in that, The terminal block (12) used for conductive connection is completely enclosed inside the terminal housing (5).

7. The integrated traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure according to claim 1, characterized in that, The cable for connection passes through the wire pass nut (7) and then through the wire pass nut mounting hole on the wiring housing (5) to enter the wiring housing (5) and connect to the terminal block (12).

8. An integrated traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure according to claim 1, characterized in that, The box body (1) is provided with a box cover plate (6).

9. An integrated traction reactor assembly for a monorail locomotive with an IP55-rated wiring enclosure according to claim 1, characterized in that, The assembly deviation of the four terminal blocks (12) of the first reactor (2) and the second reactor (3) being positioned and installed with the reactor mounting bracket (9) via the insulator (11) and the plate (10) is less than 1 mm.