High-voltage protection device for hybrid shunting locomotive

Abstract

The utility model discloses a high-voltage protection device for a hybrid shunting locomotive, and relates to the technical field of hybrid vehicles, the high-voltage protection device for the hybrid shunting locomotive comprises a protection shell, a wiring cover, a spool arrangement fixing assembly and an overheating protection assembly, the wiring cover is symmetrically provided with wiring ports; the spool arrangement fixing assembly comprises a fixing seat and a movable plate, and the movable plate is provided with a spool groove; according to the utility model, full-isolation high-voltage protection is carried out on the battery of the hybrid shunting locomotive through the protective shell and the wiring cover, high-voltage faults caused by short circuit due to contact between the battery and external equipment parts and safety accidents during maintenance are avoided, and meanwhile, the safety of the hybrid shunting locomotive is improved. And the battery wire pipes are regularly arranged and fixed through the fixed seat and the movable plate, so that electric leakage and short circuit caused by abrasion of the wire pipes are avoided, and the safety of the battery of the hybrid shunting locomotive is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hybrid vehicles, and specifically relates to a high-voltage protection device for a hybrid shunting locomotive. Background Art

[0002] A hybrid shunting locomotive is a railway locomotive that combines traditional internal combustion engine and electric motor technology. It can be powered by either a conventional diesel engine or an electric motor, with energy stored in a device such as a battery or supercapacitor. This locomotive is designed to improve energy efficiency, reduce emissions, and lower operating costs.

[0003] In hybrid shunting locomotives, batteries are important components for storing and providing electrical energy. In order to avoid high-voltage faults and safety accidents caused by battery short circuit, overcharging, and over-discharging, the batteries need to be protected and isolated to prevent battery short circuit. At the same time, it can also prevent high-voltage current from affecting the safety of maintenance personnel during maintenance. Existing batteries are generally installed directly in insulating shells. In order to facilitate wiring, open shells are mainly used, so that the shell cannot completely isolate the battery from the outside, and the position of the wire tube needs to be adjusted after wiring. During operation, the wire tube is also at risk of offset wear. When the wire tube is exposed to wear, it will cause unstable battery voltage or short circuit, which poses certain safety hazards. In addition, the space inside the existing shell is small, which is not convenient for heat dissipation. The battery is prone to overheating, resulting in high-voltage faults and safety accidents. Utility Model Content

[0004] The utility model provides a high-voltage protection device for a hybrid shunting locomotive, which has the advantages of comprehensive isolation and protection of large batteries and can regularly fix battery wire pipes, so as to solve the problems of incomplete isolation and protection and wire pipe wear in the existing ones.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-voltage protection device for a hybrid shunting locomotive, comprising a protective housing, a wiring cover, a wire pipe arrangement and fixing assembly, and an overheating protection assembly, wherein:

[0006] The wiring cover closes the opening of the protective shell and is detachably mounted on the upper end of the protective shell. The wiring cover is symmetrically provided with wiring ports.

[0007] The wire tube arrangement and fixing assembly includes a fixing seat fixed in the wiring port and a movable plate slidably connected in the wiring port, and a wire tube groove for fixing the wire tube is provided on a side where the movable plate and the fixing seat are close to each other;

[0008] The overheat protection component includes a heat dissipation plate fixed in the protective shell for dissipating heat.

[0009] As a preferred technical solution of the present invention, the wiring cover is provided with a telescopic slot connected to the wiring port, the telescopic slot is movably connected and fits with the movable plate, and an operating frame is installed on the side of the movable plate away from the fixed seat.

[0010] As an optimal technical solution of the present invention, a fixing ring is installed on the outside of the operating frame, and fixing holes corresponding to the fixing ring are symmetrically provided on the upper end of the wiring cover. The fixing ring and the wiring cover are connected by bolts passing through the fixing ring and the fixing holes.

[0011] As a preferred technical solution of the present invention, a plurality of mounting holes are provided at the upper end of the protective shell, and the wiring cover and the protective shell are connected by mounting bolts passing through the wiring cover and the mounting holes.

[0012] As an optimal technical solution of the present invention, guide plates are symmetrically installed in the protective shell, and the guide plates are vertically corresponding to the wiring ports. An isolation frame for placing locomotive batteries is installed in the protective shell, and the protective shell, wiring cover and isolation frame are all made of insulating materials.

[0013] As an optimal technical solution of the present invention, a plurality of cooling pipes interconnected are installed at equal intervals on the side ends of the heat dissipation plate, and circulation pipes connected to the cooling pipes and extending outside the protective shell are symmetrically installed on both sides of the cooling pipes.

[0014] As a preferred technical solution of the present invention, the overheat protection assembly further includes a plurality of fans fixed at the lower end of the isolation frame, and the protective shell is symmetrically provided with heat dissipation openings, which cooperate with the fans.

[0015] Compared with the prior art, the present invention provides a high-voltage protection device for hybrid shunting locomotives, which has the following beneficial effects:

[0016] 1. The utility model fully isolates the battery of the hybrid shunting locomotive for high-voltage protection through the protective shell and the wiring cover, avoiding high-voltage failures caused by short circuits between the battery and external equipment components and safety accidents during maintenance. At the same time, the battery wire tubes are regularly arranged and fixed through the fixing seat and the movable plate, avoiding leakage and short circuits caused by wire tube wear, thereby improving the safety of the battery of the hybrid shunting locomotive.

[0017] 2. The utility model can effectively dissipate heat from the battery inside the protective shell by means of a heat sink and a fan arranged inside the protective shell. The protective shell has a wide space, which avoids high-voltage failures and safety accidents caused by battery overheating, further improving the safety of the battery of the hybrid shunting locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the protective shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation of the wire tube arrangement and fixing assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the wiring cover structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation of the overheat protection component of the utility model;

[0023] Figure 6 This is a cross-sectional view of the interior of the protective shell of the present invention.

[0024] In the figure: 1. Protective shell; 11. Mounting hole; 12. Mounting bolt; 13. Guide plate; 2. Wiring cover; 21. Wiring port; 22. Fixing hole; 23. Expansion slot; 3. Wire pipe arrangement and fixing assembly; 31. Fixing seat; 311. Wire pipe slot; 32. Movable plate; 33. Operating frame; 34. Fixing ring; 4. Overheat protection assembly; 41. Heat sink; 42. Cooling pipe; 43. Circulation pipe; 44. Isolation frame; 45. Fan; 46. Heat dissipation port. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0026] Please see the attached Figures 1-6 The utility model discloses a high-voltage protection device for a hybrid shunting locomotive, comprising a protective shell 1, a wiring cover 2, a wire pipe arrangement and fixing assembly 3, and an overheating protection assembly 4, wherein:

[0027] The wiring cover 2 closes the opening of the protective shell 1 and is detachably mounted on the upper end of the protective shell 1. The wiring cover 2 is symmetrically provided with wiring ports 21.

[0028] The wire tube arrangement and fixing assembly 3 includes a fixing seat 31 fixed in the wiring port 21 and a movable plate 32 slidably connected in the wiring port 21. The movable plate 32 and the fixing seat 31 are both provided with a wire tube groove 311 for fixing the wire tube on one side close to each other.

[0029] The overheat protection assembly 4 includes a heat dissipation plate 41 fixed in the protective shell 1 for heat dissipation.

[0030] Please refer to the attached Figure 3 、 Figure 4 The wiring cover 2 is provided with a telescopic slot 23 connected to the wiring port 21. The telescopic slot 23 is movably connected and fits with the movable plate 32. An operating frame 33 is installed on the side of the movable plate 32 away from the fixed seat 31. A fixing ring 34 is installed on the outside of the operating frame 33. The upper end of the wiring cover 2 is symmetrically provided with fixing holes 22 corresponding to the fixing ring 34. The fixing ring 34 and the wiring cover 2 are connected to the fixing hole 22 by bolts passing through the fixing ring 34.

[0031] The battery wire pipes can be respectively inserted into different wire pipe grooves 311 on the fixing seat 31. The movable plate 32 is moved toward the fixing seat 31 through the operating frame 33 until the movable plate 32 and the fixing seat 31 are in contact, so that the battery wire pipes are neatly inserted between the movable plate 32 and the wire pipe grooves 311 on the fixing seat 31.

[0032] Please refer to the attached Figure 2 、 Figure 4 A plurality of mounting holes 11 are provided at the upper end of the protective shell 1. The wiring cover 2 and the protective shell 1 are connected through mounting bolts 12 passing through the wiring cover 2 and the mounting holes 11. Guide plates 13 are symmetrically installed in the protective shell 1. The guide plates 13 correspond vertically to the wiring ports 21. The guide plates 13 can accurately reserve enough space at the front and rear ends of the battery for the battery wire pipe to pass through. An isolation frame 44 for placing locomotive batteries is installed in the protective shell 1. The protective shell 1, the wiring cover 2 and the isolation frame 44 are all made of insulating materials, specifically thermosetting plastics, which can carry heavier batteries while having a light weight. They not only have high insulation properties, but can also withstand high-intensity impacts and have good protective performance. Example 2

[0033] Based on the above embodiment 1, please refer to the attached Figure 5 、 Figure 6 The side ends of the heat sink 41 are equidistantly arranged with a plurality of interconnected cooling pipes 42, and the two sides of the cooling pipes 42 are symmetrically installed with circulation pipes 43 connected to the cooling pipes 42 and extending to the outside of the protective shell 1. The overheating protection component 4 also includes a plurality of fans 45 fixed to the lower end of the isolation frame 44. The protective shell 1 is symmetrically provided with heat dissipation ports 46, and the heat dissipation ports 46 cooperate with the fans 45.

[0034] When the battery is in use, the refrigerant enters the cooling pipe 42 through the circulation pipe 43 and exchanges heat with the battery through the heat sink 41 to dissipate heat. The fan 45 at the bottom of the battery discharges the heat generated by the battery during operation through the heat dissipation port 46, so that the operating temperature of the battery is always maintained normal, avoiding high-voltage failures and safety accidents caused by battery overheating.

[0035] The working principle and use process of the utility model are as follows: the battery of the hybrid shunting locomotive is placed on the isolation frame 44 in the protective shell 1 along the guide plate 13, and then the wiring cover 2 is placed on the upper end of the protective shell 1. After the battery wire tube is connected to the battery, it is pulled upward from the space between the guide plates 13 and passed through the wiring port 21 of the wiring cover 2. Then, the wiring cover 2 is fixed to the upper end of the protective shell 1 by installing the bolts 12. At this time, the battery wire tubes are respectively inserted into different wire tube grooves 311 on the fixing seat 31. Then, the movable plate 32 is moved toward the fixing seat 31 by the operating frame 33 so that the movable plate 32 fits the fixing seat 31. At this time, the battery wire tubes are inserted into different wire tube grooves 311 on the fixing seat 31. The tubes are neatly clamped between the movable plate 32 and the wire tube groove 311 on the fixing seat 31. Finally, the operating frame 33 is fixed by passing the bolt through the fixing ring 34 and then inserted into the fixing hole 22, thereby fixing the position of the movable plate 32 to complete the installation. At this time, the wire tubes of the battery are neatly fixed. At the same time, the battery is completely isolated from the outside through the protective shell 1 and the wiring cover 2. When the battery is in use, the refrigerant enters the cooling tube 42 through the circulation pipe 43 and exchanges heat with the battery through the heat sink 41 to dissipate heat. The fan 45 at the bottom of the battery discharges the heat generated by the battery during operation through the heat dissipation port 46, so that the operating temperature of the battery is always maintained normal.

Claims

1. A high-voltage protection device for a hybrid shunting locomotive, comprising a protective shell (1), characterized in that: It also includes a wiring cover (2), a wire tube arrangement and fixing component (3) and an overheating protection component (4), wherein: The wiring cover (2) closes the opening of the protective shell (1) and is detachably mounted on the upper end of the protective shell (1); the wiring cover (2) is symmetrically provided with wiring ports (21); The wire tube arrangement fixing assembly (3) comprises a fixing seat (31) fixed in the wiring port (21) and a movable plate (32) slidably connected in the wiring port (21), and a wire tube groove (311) for fixing the wire tube is provided on a side where the movable plate (32) and the fixing seat (31) are close to each other; The overheat protection assembly (4) comprises a heat dissipation plate (41) fixed in the protective shell (1) for dissipating heat.

2. A hybrid shunting locomotive high-voltage protection device according to claim 1, characterized in that: The wiring cover (2) is provided with a telescopic slot (23) communicating with the wiring port (21); the telescopic slot (23) is movably connected and engaged with the movable plate (32); and an operating frame (33) is installed on a side of the movable plate (32) away from the fixed seat (31).

3. A hybrid shunting locomotive high-voltage protection device according to claim 2, characterized in that: A fixing ring (34) is installed on the outside of the operating frame (33), and a fixing hole (22) corresponding to the fixing ring (34) is symmetrically provided on the upper end of the wiring cover (2). The fixing ring (34) and the wiring cover (2) are connected by bolts passing through the fixing ring (34) and the fixing hole (22).

4. A hybrid shunting locomotive high-voltage protection device according to claim 3, characterized in that: The upper end of the protective shell (1) is provided with a plurality of mounting holes (11), and the wiring cover (2) and the protective shell (1) are connected by mounting bolts (12) passing through the wiring cover (2) and the mounting holes (11).

5. The high-voltage protection device for a hybrid shunting locomotive according to claim 4, characterized in that: A guide plate (13) is symmetrically installed in the protective shell (1), and the guide plate (13) is vertically corresponding to the wiring port (21). An isolation frame (44) for placing a locomotive battery is installed in the protective shell (1). The protective shell (1), the wiring cover (2) and the isolation frame (44) are all made of insulating materials.

6. The high-voltage protection device for a hybrid shunting locomotive according to claim 1, characterized in that: A plurality of cooling pipes (42) that are interconnected are equidistantly arranged on the side ends of the heat dissipation plate (41), and circulation pipes (43) that are connected to the cooling pipes (42) and extend to the outside of the protective shell (1) are symmetrically installed on both sides of the cooling pipes (42).

7. The high-voltage protection device for a hybrid shunting locomotive according to claim 5, characterized in that: The overheat protection assembly (4) further includes a plurality of fans (45) fixed to the lower end of the isolation frame (44), and the protective shell (1) is symmetrically provided with heat dissipation openings (46), and the heat dissipation openings (46) cooperate with the fans (45).

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