Electrical connection device and freight locomotive

Abstract

The utility model relates to an electrical connection device and a freight locomotive. The electrical connection device comprises a first connection assembly and a second connection assembly. The first connecting assembly comprises a first positioning piece and a first electrical terminal, and the first positioning piece is provided with a positioning hole. The second connecting assembly comprises a second positioning piece and a second electrical terminal. The second positioning piece comprises a positioning plug-in. The first connecting assembly and the second connecting assembly are arranged oppositely, when the first connecting assembly and the second connecting assembly approach each other, the positioning plug-in can be inserted into the positioning hole, and the first electrical terminal and the second electrical terminal abut against each other to conduct a circuit. The first positioning piece and the second positioning piece are respectively arranged on the two carriages, and the first electrical terminal and the second electrical terminal are ensured to face each other when the two carriages are close to each other by utilizing the plugging matching of the first positioning piece and the second positioning piece, so that the first electrical terminal and the second electrical terminal can be smoothly propped against each other to conduct a circuit.

Description

Technical Field

[0001] This utility model relates to the field of freight locomotive manufacturing technology, and in particular to an electrical connection device and a freight locomotive. Background Technology

[0002] Freight locomotives are common transportation tools in the metallurgical industry, used to transport ore, fuel, molten iron ladles, etc. A freight locomotive consists of a locomotive and multiple cars connected in series. To achieve electrical interconnection between all cars, an electrical connection device needs to be installed between adjacent cars so that electrical interconnection can be achieved simultaneously when two adjacent cars are mechanically connected. Existing electrical connection devices mainly consist of connecting terminals installed on adjacent cars. When two adjacent cars are connected by a coupler, the two sets of connecting terminals contact each other to achieve circuit conduction. However, during the docking operation of two cars, it has been found that when the electrical connection device deforms due to changes in ambient temperature, or due to material fatigue or its own weight during long-term use, the two sets of connecting terminals may not be able to connect smoothly, leading to electrical interconnection failure. Utility Model Content

[0003] The purpose of this invention is to provide an electrical connection device and a freight locomotive, which can avoid electrical interconnection failure due to material deformation and ensure high reliability of electrical interconnection when two carriages are docked.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An electrical connection device is provided, comprising:

[0006] A first connecting component, the first connecting component including a first positioning member and a first electrical terminal mounted on the first positioning member, the first positioning member being provided with a positioning hole;

[0007] The second connecting assembly includes a second positioning element and a second electrical terminal mounted on the second positioning element, the second positioning element including a positioning plug that mates with the positioning hole;

[0008] The first connecting component and the second connecting component are positioned opposite each other. When the first connecting component and the second connecting component are close to each other, the positioning plug can be inserted into the positioning hole, and the first electrical terminal and the second electrical terminal abut against each other to conduct the circuit.

[0009] As an alternative to the electrical connection device, the positioning hole includes a guide area in the middle and a limiting area in the periphery. One end of the limiting area is connected to the guide area along its length, and the other end extends in a direction away from the guide area. The positioning plug can enter the limiting area from the guide area and abut against the end of the limiting area away from the guide area.

[0010] As an alternative to the electrical connection device, the positioning plug includes a positioning plate. Along the insertion direction of the positioning plug, the width of the positioning plate gradually increases from the front end to the rear end of the positioning plug. The rear end of the positioning plate is used to abut against the end of the limiting area that is opposite to the guide area.

[0011] As an optional electrical connection device, there are multiple limiting areas, which surround the periphery of the guide area, and the positioning plate is set in a one-to-one correspondence with the limiting areas.

[0012] As an alternative to the electrical connection device, it also includes an elastic element, through which the first positioning element is fixed to the carriage and the second positioning element is fixed to the carriage.

[0013] As an alternative to the electrical connection device, a zipper is also included, with a plurality of zippers spaced around the elastic element, one end of the zipper being connected to the first positioning element or the second positioning element, and the other end of the zipper being used to connect to the carriage.

[0014] As an optional electrical connection device, the first connection assembly further includes a first air supply component disposed on the first positioning component, the interface end of the first air supply component being directly opposite the positioning hole. The second connection assembly further includes a second air supply component passing through the positioning plug, the interface end of the second air supply component being used to connect with the interface end of the first air supply component to conduct air passage.

[0015] As an optional solution for the electrical connection device, the first air supply component includes a first air pipe and a first connector disposed at one end of the first air pipe. The end of the first connector opposite to the first air pipe is inserted into the first positioning component, and the first connector is elastically connected to the first positioning component. The second air supply component includes a second air pipe and a second connector disposed at one end of the second air pipe. The second connector passes through the positioning plug and is connected to the first connector.

[0016] As an optional embodiment of the electrical connection device, the first connection assembly further includes a first protective cover covering the first electrical terminal, a first protective plate elastically disposed on the side wall of the first protective cover, and one end of the first electrical terminal passing through the first protective plate; the second connection assembly further includes a second protective cover covering the second electrical terminal, a second protective plate elastically disposed on the side wall of the second protective cover, one end of the second electrical terminal passing through the second protective plate, and the end of the first electrical terminal passing through the first protective plate being used to abut against the end of the second electrical terminal passing through the second protective plate.

[0017] A freight locomotive is also provided, comprising multiple carriages and an electrical connection device, wherein the electrical connection device is disposed between two adjacent carriages to enable electrical connection and / or communication connection between the two adjacent carriages via the electrical connection device.

[0018] The advantages of this utility model compared to the prior art are:

[0019] This utility model discloses an electrical connection device and a freight locomotive. By respectively setting a first positioning component and a second positioning component on two carriages, and utilizing their plug-in cooperation, the first electrical terminal and the second electrical terminal are ensured to be aligned when the two carriages are close together. This allows the first electrical terminal and the second electrical terminal to successfully abut and conduct electricity. It avoids the inability to smoothly connect the first electrical terminal and the second electrical terminal due to deformation of the first and second connecting components. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the first connecting component according to an embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the second connecting component according to an embodiment of the present utility model.

[0023] Figure 3 This is a partial top view of the electrical connection device according to an embodiment of the present utility model.

[0024] Figure 4 This is a partial cross-sectional view of the electrical connection device according to an embodiment of the present utility model.

[0025] Figure 5 This is a schematic diagram showing the connection between the first gas supply component and the second gas supply component in an embodiment of the present utility model.

[0026] Figure 6 for Figure 5 Enlarged view of point A in the image.

[0027] Figure 7 This is a schematic diagram of a freight locomotive according to an embodiment of the present utility model.

[0028] In the picture:

[0029] 1. First connecting assembly; 11. First protective cover; 111. First base plate; 112. First side plate; 113. First mounting plate; 114. First baffle; 115. First cable management plate; 12. First electrical terminal; 13. First spring; 14. First protective plate; 141. First through hole; 15. First positioning element; 151. First housing; 152. Positioning hole; 1521. Guide area; 1522. Limiting area; 16. First air supply element; 161. First air pipe; 162. First connector; 163. Sealing ring; 17. Limiting cylinder; 18. Limiting nut; 19. First auxiliary elastic element 1. Plate; 2. Second connecting assembly; 21. Second protective cover; 211. Second base plate; 212. Second side plate; 213. Second mounting plate; 214. Second baffle; 215. Second cable management plate; 22. Second electrical terminal; 23. Second spring; 24. Second protective plate; 241. Second through hole; 25. Second positioning component; 251. Second housing; 252. Positioning plug; 2521. Positioning plate; 26. Second air supply component; 261. Second air pipe; 262. Second connector; 27. Second auxiliary elastic plate; 3. Mounting component; 4. Elastic component; 5. Zipper; 6. Carriage; 61. Coupler. Detailed Implementation

[0030] The advantages and features of this invention, as well as methods of implementing them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, this invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided merely to complete the disclosure of this invention and to enable those skilled in the art to fully understand its scope, which is defined only by the scope of the claims. The same reference numerals denote the same constituent elements throughout the specification.

[0031] The present invention will now be described in detail with reference to the accompanying drawings.

[0032] like Figures 1 to 7 As shown, an electrical connection device is provided for electrical interconnection between two adjacent carriages 6. The electrical connection device includes a first connection component 1 and a second connection component 2. The first connection component 1 is installed on one of the two adjacent carriages 6, and the second connection component 2 is installed on the other of the two adjacent carriages 6. (Refer to...) Figure 7 As shown, the first connecting component 1 is installed... Figure 7 The second connecting assembly 2 is installed on the left side of the carriage 6 and is electrically connected to the electrical equipment on the carriage 6; Figure 7 On the right-hand carriage 6, and electrically connected to the electrical equipment on carriage 6. Electrical interconnection and disconnection between adjacent carriages 6 are achieved through the docking and separation of the first connecting component 1 and the second connecting component 2.

[0033] The first connecting component 1 includes a first positioning element 15 and a first electrical terminal 12 mounted on the first positioning element 15. The first positioning element 15 has a positioning hole 152. The second connecting component 2 includes a second positioning element 25 and a second electrical terminal 22 mounted on the second positioning element 25. The second positioning element 25 includes a positioning insert 252, which engages with the positioning hole 152. The first connecting component 1 and the second connecting component 2 are respectively installed on opposite sides of two adjacent carriages 6, i.e., the first connecting component 1 and the second connecting component 2 are directly opposite each other. When the two carriages 6 are docked, the first connecting component 1 and the second connecting component 2 approach each other and dock together. The positioning insert 252 is inserted into the positioning hole 152 to align the first connecting component 1 and the second connecting component 2, ensuring that the first electrical terminal 12 and the second electrical terminal 22 are horizontally aligned. The first electrical terminal 12 and the second electrical terminal 22 abut against each other to conduct electricity. It is understandable that by setting the first positioning member 15 and the second positioning member 25 on the two carriages 6 respectively, and utilizing their interlocking cooperation, the first electrical terminal 12 and the second electrical terminal 22 are ensured to be aligned when the two carriages 6 are close together, so that the first electrical terminal 12 and the second electrical terminal 22 can be smoothly connected to conduct the circuit. This avoids the first electrical terminal 12 and the second electrical terminal 22 being unable to be smoothly connected due to deformation of the first connecting component 1 and the second connecting component 2.

[0034] Reference Figure 1 and Figure 2As shown, the first positioning component 15 includes a first housing 151, which is a rectangular box structure. The interior of the first housing 151 is a cavity, and a positioning hole 152 is formed on the side wall of the first housing 151 facing the second connecting component 2. The interior cavity of the first housing 151 communicates with the outside through the positioning hole 152. The positioning hole 152 includes a guide area 1521 located in its central region and a limiting area 1522 located in its peripheral region. Along the length direction of the limiting area 1522, one end of the limiting area 1522 communicates with the guide area 1521, and the other end extends in a direction away from the guide area 1521. The positioning plug 252 includes a positioning plate 2521. When the first connecting component 1 and the second connecting component 2 approach each other, the positioning plate 2521 first enters the guide area 1521, and then enters the limiting area 1522 through the guide area 1521. The positioning plate 2521 abuts against the end of the limiting area 1522 opposite to the guide area 1521 to achieve positioning. The width of the limiting area 1522 gradually decreases from the end near the guide area 1521 to the end away from the guide area 1521. That is, the limiting area 1522 has a shape that is larger inside and smaller outside. This structure allows the positioning plug 252 to be smoothly inserted into the positioning hole 152 even if it is not precisely aligned with the positioning hole 152. Under the restriction of the positioning hole 152, the first positioning member 15 and the second positioning member 25 are forced to undergo relative displacement to adjust their relative positions and ensure that the first electrical terminal 12 and the second electrical terminal 22 are aligned.

[0035] The second positioning component 25 includes a second housing 251, which is a cuboid-shaped housing structure. A positioning insert 252 is disposed on the side wall of the second housing 251 facing the first connecting assembly 1. The positioning plate 2521 has an overall right-angled triangular structure. Along the insertion direction of the positioning insert 252, the width of the positioning plate 2521 gradually increases from the front end to the rear end of the positioning insert 252, i.e., the positioning plate 2521 has a shape that is smaller at the front end and larger at the rear end. It should be noted that the front end of the positioning insert 252 is the end of the positioning insert 252 furthest from the second housing 251, and the rear end of the positioning insert 252 is the end of the positioning insert 252 closest to the second housing 251. The positioning plate 2521 is designed with a smaller front end and a larger rear end, allowing the positioning plug 252 to be smoothly inserted into the positioning hole 152 even if it is not precisely aligned with it. Under the constraint of the positioning hole 152, the first positioning member 15 and the second positioning member 25 are forced to undergo relative displacement to adjust their relative positions and ensure alignment of the first electrical terminal 12 and the second electrical terminal 22. The rear end of the positioning plate 2521 is used to abut against the end of the limiting area 1522 that is away from the guide area 1521. When the rear end of the positioning plate 2521 abuts against the limiting area 1522, the positioning plate 2521 cannot continue to enter the positioning hole 152, indicating that positioning is complete.

[0036] Specifically, there are multiple limiting areas 1522, which surround the periphery of the guide area 1521. Positioning plates 2521 are configured in a one-to-one correspondence with the limiting areas 1522, meaning each positioning plate 2521 is used to connect with its corresponding limiting area 1522. In this embodiment, the number of limiting areas 1522 and positioning plates 2521 are each set to four. Of course, in other embodiments, the number of limiting areas 1522 and positioning plates 2521 can also be set to two, three, five, or other quantities.

[0037] Specifically, continue to refer to Figure 1 and Figure 2 As shown, the electrical connection device also includes a mounting component 3, an elastic element 4, and a zipper 5. The mounting component 3 is a steel structure component used for installation and fixation with the carriage 6. Both the first connecting assembly 1 and the second connecting assembly 2 are mounted on the mounting component 3. The elastic element 4 is a spring, used to fix the first positioning component 15 to the mounting component 3 on one of the carriages 6, and the second positioning component 25 to the mounting component 3 on the other carriage 6. Both the first positioning component 15 and the second positioning component 25 are capable of elastic movement in the horizontal direction. It is understood that the distance between two adjacent carriages 6 is variable when they are docked. By providing the elastic element 4, the first connecting assembly 1 and the second connecting assembly 2 can be compressed to adapt to changes in the distance between the two carriages 6, ensuring the reliability of the connection between the first electrical terminal 12 and the second electrical terminal 22.

[0038] In this embodiment, the mounting component 3 is installed on the carriage 6 using fasteners such as screws and bolts. One end of the elastic component 4 is connected and fixed to the mounting component 3, and the other end is connected and fixed to the first positioning component 15 or the second positioning component 25. Multiple zippers 5 are spaced around each elastic component 4, with one end connected to the mounting component 3 and the other end connected to the first positioning component 15 or the second positioning component 25. The zippers 5 prevent the first housing 151 or the second housing 251 from sagging or bending under its own weight, ensuring that the first positioning component 15 and the second positioning component 25 remain aligned as much as possible. The zippers 5 are used to position the first connecting component 1 and the second connecting component 2, ensuring that they are aligned and facilitating their docking.

[0039] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the first connecting assembly 1 further includes a first air supply component 16, and the second connecting assembly 2 includes a second air supply component 26. Pneumatic equipment is installed on the carriage 6. The first air supply component 16 and the second air supply component 26 are used to supply gas to connect the corresponding air paths of the pneumatic equipment on adjacent carriages 6. The first air supply component 16 is disposed on the first positioning component 15, and the second air supply component 26 passes through the positioning plug 252. One end of the first air supply component 16 is connected to the pneumatic equipment on the corresponding carriage 6, and the other end is an interface end. One end of the second air supply component 26 is connected to the pneumatic equipment on the corresponding carriage 6, and the other end is an interface end. The interface end of the first air supply component 16 is used to connect with the interface end of the second air supply component 26 to connect the air paths.

[0040] Specifically, the first air supply component 16 includes a first air pipe 161 and a first connector 162 disposed at one end of the first air pipe 161. The end of the first air pipe 161 facing away from the first connector 162 is used for connection with pneumatic equipment, and the end of the first connector 162 facing away from the first air pipe 161 forms an interface end, with the interface end of the first air pipe 161 facing the positioning hole 152. A sealing ring 163 is also provided at the interface end of the first air pipe 161 to provide a sealing function. The first connector 162 passes through the first housing 151 and extends into the cavity of the first housing 151. The first connector 162 is elastically connected to the first housing 151. A limiting cylinder 17 is provided on the outer wall of the first housing 151, and the first connector 162 passes through the limiting cylinder 17, with the outer side of the first connector 162 and the inner wall of the limiting cylinder 17 connected by a spring to achieve an elastic connection between the two. A limiting nut 18 is also fitted onto the outside of the first connector 162. The limiting nut 18 is used to abut against the end of the limiting cylinder 17 that is away from the first housing 151. The limiting nut 18 is used to limit the distance of elastic movement of the first connector 162 relative to the first housing 151.

[0041] Specifically, the second air supply component 26 includes a second air pipe 261 and a second connector 262 disposed at one end of the second air pipe 261. The end of the second air pipe 261 facing away from the second connector 262 is used for connection with pneumatic equipment, and the end of the second connector 262 facing away from the second air pipe 261 forms an interface end. The interface end of the second connector 262 is provided with a bevel for easy insertion. The second connector 262 passes through the positioning plug 252, that is, multiple positioning plates 2521 are spaced apart around the periphery of the second connector 262. The interface end of the second connector 262 extends to the outside of the positioning plug 252 for insertion with the first connector 162.

[0042] When the first connecting component 1 and the second connecting component 2 are docked, after the first positioning member 15 and the second positioning member 25 are inserted and positioned, the interface end of the second connector 262 is inserted into the interface end of the first connector 162 to achieve air passage. At this time, the second connector 262 will push the first connector 162 to move elastically a certain distance, so as to compress the spring in the limiting cylinder 17. Under the action of the spring, the first connector 162 and the second connector 262 are pressed against each other to prevent the interface end from loosening and leaking air.

[0043] Reference Figures 1 to 4 As shown, the first connecting assembly 1 further includes a first protective cover 11, which covers the first electrical terminal 12 to protect it. The second connecting assembly 2 further includes a second protective cover 21, which covers the second electrical terminal 22 to protect it. A first protective plate 14 is elastically disposed on the side wall of the first protective cover 11, and one end of the first electrical terminal 12 passes through the first protective plate 14. A second protective plate 24 is elastically disposed on the side wall of the second protective cover 21, and one end of the second electrical terminal 22 passes through the second protective plate 24. The end of the first electrical terminal 12 passing through the first protective plate 14 is used to abut against the end of the second electrical terminal 22 passing through the second protective plate 24. When the first connecting assembly 1 and the second connecting assembly 2 are connected, the first protective plate 14 abuts against the second protective plate 24, and the two move elastically in opposite directions, causing the first electrical terminal 12 to abut against the second electrical terminal 22 to conduct the circuit.

[0044] Specifically, the first connecting assembly 1 further includes a first spring 13. The first protective cover 11 is a rectangular box structure, serving to provide mechanical, dustproof, and rainproof protection for the first electrical terminal 12. The first protective cover 11 is installed on the top of the first housing 151 using fasteners such as screws and bolts. The first electrical terminal 12 is installed inside the first protective cover 11. One end of the first electrical terminal 12 is electrically connected to the corresponding electrical equipment via a wire, and the other end of the first electrical terminal 12 is a connection end, which passes through the side wall of the first protective cover 11 and extends to the outside of the first protective cover 11, so as to connect with the second connecting assembly 2 through this connection end. The first protective plate 14 is used to provide rainproof and dustproof protection for the portion of the first electrical terminal 12 extending outside the first protective cover 11. The first protective plate 14 passes through the side wall of the first protective cover 11, and the first protective plate 14 is elastically connected to the first protective cover 11 by the first spring 13. One end of the first protective plate 14 in the thickness direction (X direction in the figure) is located inside the first protective cover 11, and the other end can extend to the outside of the first protective cover 11. The first protective plate 14 is movable in the X direction shown in the figure and compresses the first spring 13, that is, the first protective plate 14 is elastically movable in the X direction shown in the figure. In this embodiment, elastic movement can be understood as the first protective plate 14 moving towards the inside of the first protective cover 11, compressing the first spring 13 and causing the first spring 13 to generate elastic potential energy. The first protective plate 14 has a first through hole 141 that mates with the first electrical terminal 12, and the connection end of the first electrical terminal 12 passes through the first through hole 141 of the first protective plate 14. When the first spring 13 is in a free state, the connection end of the first electrical terminal 12 is located in the first through hole 141, preventing the first electrical terminal 12 from being exposed, thereby providing rainproof and dustproof protection for the first electrical terminal 12.

[0045] The second connecting assembly 2 also includes a second spring 23. The second protective cover 21 is a rectangular box structure, serving to provide mechanical, dustproof, and rainproof protection for the second electrical terminal 22. The second protective cover 21 is installed on the top of the second housing 251 using fasteners such as screws and bolts. The second electrical terminal 22 is installed inside the second protective cover 21. One end of the second electrical terminal 22 is electrically connected to the corresponding electrical equipment via a wire, and the other end of the second electrical terminal 22 is a connection end, which passes through the side wall of the second protective cover 21 and extends to the outside of the second protective cover 21, so as to connect with the first connecting assembly 1 through the connection end. The second protective plate 24 is used to provide rainproof and dustproof protection for the portion of the second electrical terminal 22 extending outside the second protective cover 21. The second protective plate 24 passes through the side wall of the second protective cover 21, and the second protective plate 24 is elastically connected to the second protective cover 21 by the second spring 23. One end of the second protective plate 24 in the thickness direction (X direction in the figure) is located inside the second protective cover 21, and the other end can extend to the outside of the second protective cover 21. The second protective plate 24 is capable of moving in the X direction shown in the figure and compressing the second spring 23, that is, the second protective plate 24 is capable of elastic movement in the X direction shown in the figure. In this embodiment, elastic movement can be understood as the second protective plate 24 compressing the second spring 23 and causing the second spring 23 to generate elastic potential energy when it moves toward the inside of the second protective cover 21. The second protective plate 24 has a second through hole 241 that mates with the second electrical terminal 22, and the connection end of the second electrical terminal 22 passes through the second through hole 241 of the second protective plate 24. When the second spring 23 is in a free state, the connection end of the second electrical terminal 22 is located in the second through hole 241, preventing the second electrical terminal 22 from being exposed, thereby providing rainproof and dustproof protection for the second electrical terminal 22.

[0046] When connecting two adjacent carriages 6, the first connecting component 1 and the second connecting component 2 approach and press against each other to achieve electrical interconnection between the two carriages 6. When the first connecting component 1 and the second connecting component 2 approach and press against each other, the first protective plate 14 and the second protective plate 24 abut against each other. Under the pressing action, the first protective plate 14 elastically moves towards the interior of the first protective cover 11, and the second protective plate 24 elastically moves towards the interior of the second protective cover 21. The connection end of the first electrical terminal 12 and the connection end of the second electrical terminal 22 abut against each other to conduct the circuit. It can be understood that when the two carriages 6 are separated, the first protective plate 14 and the second protective plate 24 respectively protect the first electrical terminal 12 and the second electrical terminal 22, preventing them from being exposed. When the two carriages 6 are connected together, under the pressing action, the first protective plate 14 and the second protective plate 24 move in opposite directions so that the first electrical terminal 12 and the second electrical terminal 22 can be connected together to achieve circuit conduction.

[0047] Specifically, the first protective cover 11 includes a first base plate 111, a first baffle 114, and four first side plates 112. The first base plate 111 and the first baffle 114 are arranged parallel to each other in the vertical direction (Z direction in the figure). The four first side plates 112 are arranged between the first base plate 111 and the first baffle 114, wherein two of the first side plates 112 are arranged parallel to each other in the X direction in the figure, and the other two are arranged parallel to each other in the Y direction in the figure. The first base plate 111, the first baffle 114, and the four first side plates 112 form a hollow box structure. The first protective plate 14 is installed on the first side plate 112 near the second connecting assembly 2. The first baffle 114 is located on top of the first protective cover 11, that is, above the first protective plate 14. The first baffle 114 serves to protect the first protective plate 14 from rain, preventing rainwater from wetting the first electrical terminal 12. The first baffle 114 is elastically connected to the first side plate 112 via a spring, allowing the first baffle 114 to move elastically in the X direction shown in the figure. In the initial state, one end of the first baffle 114 covers the top of the first protective plate 14, achieving a rainproof function.

[0048] The second protective cover 21 includes a second base plate 211, a second baffle 214, and four second side plates 212. The second base plate 211 and the second baffle 214 are arranged parallel to each other in the vertical direction (Z direction in the figure). The four second side plates 212 are disposed between the second base plate 211 and the second baffle 214, with two second side plates 212 arranged parallel to each other in the X direction in the figure and the other two second side plates 212 arranged parallel to each other in the Y direction in the figure. The second base plate 211, the second baffle 214, and the four second side plates 212 form a hollow box structure. The second protective plate 24 is installed on the second side plate 212 on the side closest to the first connecting assembly 1. The second baffle 214 is located on top of the second protective cover 21, that is, above the second protective plate 22. The second baffle 214 serves to protect the second protective plate 24 from rain, preventing rainwater from wetting the second electrical terminal 22. The second baffle 214 is elastically connected to the second side plate 212 via a spring, allowing the second baffle 214 to move elastically in the X direction shown in the figure. In the initial state, one end of the second baffle 214 covers the top of the second protective plate 24, achieving a rainproof function.

[0049] When the first connecting component 1 and the second connecting component 2 approach and press against each other, the first baffle 114 and the second baffle 214 abut against each other, and under the pressing action, the first baffle 114 and the second baffle 214 move elastically in opposite directions to avoid the connection between the first electrical terminal 12 and the second electrical terminal 22.

[0050] Specifically, refer to Figure 3 and Figure 4As shown, the first protective cover 11 also includes a first mounting plate 113 and a first cable management plate 115. The first mounting plate 113 is used to mount and fix the first electrical terminal 12. The first mounting plate 113 is disposed inside the first protective cover 11, and the end of the first electrical terminal 12 facing away from its connecting end is mounted on the first mounting plate 113 by fasteners, with the connecting end of the first electrical terminal 12 extending outward. The first electrical terminal 12 has a round rod structure, and a first spring 13 is sleeved on the periphery of the first electrical terminal 12. The two ends of the first spring 13 are respectively connected to the first mounting plate 113 and the first protective plate 14 to achieve elastic mounting of the first protective plate 14. There are multiple first electrical terminals 12, which are distributed in multiple rows along the vertical direction. In this embodiment, the multiple first electrical terminals 12 are divided into two rows, and the two rows of first electrical terminals 12 are spaced apart along the vertical direction. The first cable management plate 115 is disposed on the inner wall of the first protective cover 11. The first cable management plate 115 is located on the side of the first mounting plate 113 away from the first protective plate 14. The first cable management plate 115 is used to pass through the wires connecting the first electrical terminal 12 and plays the role of cable management.

[0051] The second protective cover 21 also includes a second mounting plate 213 and a second cable management plate 215. The second mounting plate 213 is used to mount and fix the second electrical terminal 22. The second mounting plate 213 is disposed inside the second protective cover 21. The end of the second electrical terminal 22 facing away from its connecting end is mounted on the second mounting plate 213 by fasteners, and the connecting end of the second electrical terminal 22 extends outward. The second electrical terminal 22 has a round rod structure, and a second spring 23 is sleeved on the periphery of the second electrical terminal 22. The two ends of the second spring 23 are respectively connected to the second mounting plate 213 and the second protective plate 24 to realize the elastic installation of the second protective plate 24. There are multiple second electrical terminals 22, and the multiple second electrical terminals 22 are distributed in multiple rows along the vertical direction. The multiple second electrical terminals 22 are arranged in a one-to-one correspondence with multiple first electrical terminals 12. In this embodiment, the multiple second electrical terminals 22 are divided into two rows, and the two rows of second electrical terminals 22 are distributed at intervals along the vertical direction. The second cable management plate 215 is disposed on the inner wall of the second protective cover 21. The second cable management plate 215 is located on the side of the second mounting plate 213 away from the second protective plate 24. The second cable management plate 215 is used to pass through the wires connecting the second electrical terminal 22 and plays the role of cable management.

[0052] Specifically, continue to refer to Figure 1 and Figure 2As shown, the first connecting component 1 further includes a first auxiliary elastic plate 19, and the second connecting component 2 further includes a second auxiliary elastic plate 27. The first auxiliary elastic plate 19 and the second auxiliary elastic plate 27 serve to balance the forces between the first connecting component 1 and the second connecting component 2. The first auxiliary elastic plate 19 is elastically disposed at the bottom of the first positioning member 15, and the second auxiliary elastic plate 27 is elastically disposed at the bottom of the second positioning member 25. When the first connecting component 1 and the second connecting component 2 approach and press against each other, the first auxiliary elastic plate 19 and the second auxiliary elastic plate 27 abut against each other and move elastically in opposite directions. In this embodiment, when the first connecting component 1 and the second connecting component 2 are connected, the first baffle 114 and the second baffle 214 located at the top abut against each other and move elastically in opposite directions, and the first protective plate 14 and the second protective plate 24 abut against each other and move elastically in opposite directions. At the same time, the first auxiliary elastic plate 19 and the second auxiliary elastic plate 27 located at the bottom also abut against each other and move elastically in opposite directions. This structure makes the top and bottom areas of the first connecting component 1 and the second connecting component 2 more evenly stressed, avoiding misalignment of the first electrical terminal 12 and the second electrical terminal 22 when they are connected due to uneven stress, and ensuring reliable connection between the first electrical terminal 12 and the second electrical terminal 22.

[0053] like Figure 1 , Figure 2 and Figure 7 As shown, a freight locomotive is also provided, including a locomotive head, carriages 6, and an electrical connection device. The electrical connection device is used to connect the circuit between two adjacent carriages 6 and the communication line for automatic control. There are multiple carriages 6, which are connected in series, and the locomotive head is connected to one of the carriages 6 located at the end. The electrical connection device is disposed between two adjacent carriages 6 to enable circuit connection and / or communication connection between the two adjacent carriages 6. A coupler 61 is provided at the end of the carriage 6. The coupler 61 is prior art, and its specific structure and working principle will not be described in detail here. Two adjacent carriages 6 are connected by the coupler 61.

[0054] In this embodiment, the connection process of the two carriages 6 is as follows: the two adjacent carriages 6 move closer to each other until the couplers 61 on the two carriages 6 are engaged together to complete the docking of the carriages 6. As the two carriages 6 move closer to each other, the first connecting component 1 and the second connecting component 2 move closer to each other simultaneously. The first positioning component 15 and the second positioning component 25 are inserted to align the first connecting component 1 and the second connecting component 2. After the first positioning component 15 and the second positioning component 25 are inserted, the first air supply component 16 and the second air supply component 26 are docked to open the air passage. Subsequently, the first baffle 114 and the second baffle 214 abut against each other and move elastically in opposite directions in the X direction shown in the figure, and the first auxiliary elastic plate 19 and the second auxiliary elastic plate 27 abut against each other and move elastically in opposite directions in the X direction shown in the figure. Finally, the first protective plate 14 and the second protective plate 24 come into contact with each other. Under the pressure, the first protective plate 14 moves toward the inside of the first protective cover 11, and the second protective plate 24 moves toward the inside of the second protective cover 21, until the first electrical terminal 12 and the second electrical terminal 22 come into contact with each other to conduct the circuit.

[0055] During the operation of freight locomotives, the first connecting assembly 1 and the second connecting assembly 2 are prone to displacement deformation or sagging deformation due to the influence of ambient temperature differences and the material fatigue of the elastic component 4. When two adjacent carriages 6 are docked, the positioning action of the first positioning component 15 and the second positioning component 25 can promote the alignment of the first connecting assembly 1 and the second connecting assembly 2, thereby ensuring that the first electrical terminal 12 and the second electrical terminal 22 are aligned and accurately docked, ensuring the reliability of electrical interconnection.

[0056] Although embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but can be made in various forms, and those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential characteristics of the present invention. Therefore, it should be understood that the above embodiments are exemplary in all respects and not restrictive.

Claims

1. An electrical connection device, characterized in that, include: A first connecting component, the first connecting component including a first positioning member and a first electrical terminal mounted on the first positioning member, the first positioning member being provided with a positioning hole; The second connecting assembly includes a second positioning element and a second electrical terminal mounted on the second positioning element, the second positioning element including a positioning plug that mates with the positioning hole; The first connecting component and the second connecting component are positioned opposite each other. When the first connecting component and the second connecting component are close to each other, the positioning plug can be inserted into the positioning hole, and the first electrical terminal and the second electrical terminal abut against each other to conduct the circuit.

2. The electrical connection device according to claim 1, characterized in that, The positioning hole includes a guide area in the middle and a limiting area in the periphery. One end of the limiting area is connected to the guide area along its length, and the other end extends in a direction away from the guide area. The positioning plug can enter the limiting area from the guide area and abut against the end of the limiting area away from the guide area.

3. The electrical connection device according to claim 2, characterized in that, The positioning plug includes a positioning plate. Along the insertion direction of the positioning plug, the width of the positioning plate gradually increases from the front end to the rear end of the positioning plug. The rear end of the positioning plate is used to abut against the end of the limiting area that is opposite to the guide area.

4. The electrical connection device according to claim 3, characterized in that, There are multiple limiting areas, which surround the periphery of the guide area, and the positioning plate is set in a one-to-one correspondence with each limiting area.

5. The electrical connection device according to claim 1, characterized in that, It also includes elastic elements, and the first positioning element and the carriage, as well as the second positioning element and the carriage, are both fixed by the elastic elements.

6. The electrical connection device according to claim 5, characterized in that, It also includes zippers, with multiple zippers spaced around the elastic element. One end of each zipper is connected to the first or second positioning element, and the other end of each zipper is used to connect to the carriage.

7. The electrical connection device according to any one of claims 1 to 6, characterized in that, The first connecting component further includes a first air supply component disposed on the first positioning component, the interface end of the first air supply component being directly opposite the positioning hole. The second connecting component further includes a second air supply component passing through the positioning plug, the interface end of the second air supply component being used to connect with the interface end of the first air supply component to conduct air passage.

8. The electrical connection device according to claim 7, characterized in that, The first air supply component includes a first air tube and a first connector disposed at one end of the first air tube. The end of the first connector opposite to the first air tube is inserted into the first positioning component, and the first connector is elastically connected to the first positioning component. The second air supply component includes a second air tube and a second connector disposed at one end of the second air tube. The second connector passes through the positioning plug and is connected to the first connector.

9. The electrical connection device according to any one of claims 1 to 6, characterized in that, The first connecting assembly further includes a first protective cover covering the first electrical terminal, a first protective plate elastically disposed on the side wall of the first protective cover, and one end of the first electrical terminal passing through the first protective plate; the second connecting assembly further includes a second protective cover covering the second electrical terminal, a second protective plate elastically disposed on the side wall of the second protective cover, one end of the second electrical terminal passing through the second protective plate, and the end of the first electrical terminal passing through the first protective plate being used to abut against the end of the second electrical terminal passing through the second protective plate.

10. A freight locomotive, characterized in that, It includes multiple carriages and an electrical connection device as described in any one of claims 1 to 9, wherein the electrical connection device is disposed between two adjacent carriages to enable electrical connection and / or communication connection between the two adjacent carriages via the electrical connection device.

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