Electrical connection device and freight locomotive

Abstract

The invention 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 protective cover, a first protective plate is elastically arranged on the first protective cover, a first electrical terminal is arranged in the first protective cover, and the connecting end of the first electrical terminal is arranged in the first protective plate in a penetrating mode. The second connecting assembly comprises a second protective cover, a second protective plate is elastically arranged on the second protective cover, a second electrical terminal is arranged in the second protective cover, and the connecting end of the second electrical terminal is arranged in the second protective plate in a penetrating mode. When the first connecting assembly and the second connecting assembly extrude each other, the two protective plates abut against each other and move towards the interiors of the two protective covers respectively, and the connecting ends of the two electrical terminals abut against each other to conduct a circuit. The first electrical terminal and the second electrical terminal can obtain good rainproof and dustproof protection, so that the two carriages have good reliability during electrical interconnection, and normal operation of the freight locomotive is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of freight locomotive manufacturing, and in particular to an electrical connection device and a freight locomotive. Background Art

[0002] Freight locomotives are common means of transportation in the metallurgical field, which are used to transport ore, fuel, ladles of molten iron, etc. Freight locomotives include a locomotive and multiple carriages connected in series. In order to achieve electrical interconnection between all carriages, it is necessary to set an electrical connection device between two adjacent carriages so that when the two adjacent carriages are mechanically connected together, the electrical interconnection between the adjacent carriages can be achieved synchronously. The existing electrical connection device mainly includes connecting terminals respectively installed on two adjacent carriages. When the two adjacent carriages are connected together by a coupler, the two sets of connecting terminals contact each other to achieve circuit conduction. During the operation of the freight locomotive, objects such as rainwater and dust are easy to adhere to the connecting terminals, affecting the reliability of electrical interconnection. Summary of the invention

[0003] The object of the present invention is to provide an electrical connection device and a freight locomotive, which have good rainproof and dustproof performance and high reliability of electrical interconnection.

[0004] To achieve this object, the present invention adopts the following technical solutions:

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

[0006] A first connection assembly is mounted on one of the two adjacent carriages, the first connection assembly includes a first protective cover, a first protective plate is elastically provided on the first protective cover, the first protective plate is passed through a side wall of the first protective cover, and one end of the first protective plate extends to the outside of the first protective cover, a first electrical terminal is provided in the first protective cover, and a connection end of the first electrical terminal is passed through the first protective plate;

[0007] a second connecting assembly, which is mounted on the other of the two adjacent carriages, the second connecting assembly comprising a second protective cover, a second protective plate being elastically provided on the second protective cover, the second protective plate being passed through a side wall of the second protective cover, and one end of the second protective plate extending to the outside of the second protective cover, a second electrical terminal being provided in the second protective cover, and a connecting end of the second electrical terminal being passed through the second protective plate;

[0008] When the first connecting component and the second connecting component are approached and squeezed against each other, the first protective plate abuts against the second protective plate and moves toward the inside of the first protective cover and the second protective cover respectively, and the connecting ends of the first electrical terminal and the second electrical terminal abut against each other to conduct the circuit.

[0009] As an optional scheme of the electrical connection device, a first limiting step is provided on the periphery of the first protective plate, and the first limiting step is used to abut against the inner wall of the first protective cover; a second limiting step is provided on the periphery of the second protective plate, and the second limiting step is used to abut against the inner wall of the second protective cover.

[0010] As an optional solution of the electrical connection device, a first mounting plate is provided in the first protective cover, an end of the first electrical terminal away from its connection end is mounted on the first mounting plate, a first spring is sleeved around the periphery of the first electrical terminal, and two ends of the first spring are respectively connected to the first mounting plate and the first protective plate;

[0011] A second mounting plate is arranged in the second protective cover, and the end of the second electrical terminal away from its connection end is mounted on the second mounting plate. A second spring is sleeved around the periphery of the second electrical terminal, and the two ends of the second spring are respectively connected to the second mounting plate and the second protective plate.

[0012] As an optional scheme of the electrical connecting device, there are multiple first electrical terminals, and the multiple first electrical terminals are distributed in multiple rows along the vertical direction; there are multiple second electrical terminals, and the multiple second electrical terminals are distributed in multiple rows along the vertical direction; the multiple first electrical terminals and the multiple second electrical terminals are arranged in a one-to-one correspondence.

[0013] As an optional solution for the electrical connecting device, the first protective cover includes a first baffle elastically arranged above the first protective plate, and the second protective cover includes a second baffle elastically arranged above the second protective plate, and when the first connecting component and the second connecting component are approached and squeezed against each other, the first baffle abuts against the second baffle.

[0014] As an optional scheme for the electrical connecting device, the first baffle includes a first horizontal plate and a first vertical plate which are vertically arranged, the first vertical plate is located at one end of the first horizontal plate close to the second connecting component, and the free end of the first vertical plate extends upward; the second baffle includes a second horizontal plate and a second vertical plate which are vertically arranged, the second vertical plate is located at one end of the second horizontal plate close to the first connecting component, and the free end of the second vertical plate extends upward; when the first connecting component and the second connecting component are approached and squeezed against each other, the first vertical plate abuts against the second vertical plate.

[0015] As an optional solution for the electrical connection device, the first connection component also includes a first positioning member arranged at the bottom of the first protective cover, and the second connection component also includes a second positioning member arranged at the bottom of the second protective cover, and the first positioning member is plugged into and matched with the second positioning member.

[0016] As an optional scheme of the electrical connecting device, a first auxiliary elastic plate is elastically provided at the bottom of the first connecting component, and a second auxiliary elastic plate is elastically provided at the bottom of the second connecting component. When the first connecting component and the second connecting component are approached and squeezed against each other, the first auxiliary elastic plate abuts against the second auxiliary elastic plate and moves elastically.

[0017] As an optional solution of the electrical connection device, it also includes an elastic member, through which the first connection component and the corresponding carriage are elastically connected, and the second connection component and the corresponding carriage are elastically connected through the elastic member.

[0018] A freight locomotive is also provided, comprising a plurality of carriages and an electrical connection device, wherein the electrical connection device is arranged between two adjacent carriages, so that the two adjacent carriages are connected in circuit and / or communication via the electrical connection device.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] An electrical connection device and a freight locomotive of the present invention, by installing the first electrical terminal in the first protective cover and the second electrical terminal in the second protective cover, play a role in protecting the first electrical terminal and the second electrical terminal from rain and dust. By elastically setting a first protective plate on the first protective cover, the first protective plate is used to protect the connection end of the first electrical terminal from rain and dust; by elastically setting a second protective plate on the second protective cover, the second protective plate is used to protect the connection end of the second electrical terminal from rain and dust. Therefore, the first electrical terminal and the second electrical terminal can obtain good protection against rain and dust, so that the electrical interconnection between the two carriages has good reliability, ensuring the normal operation of the freight locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0022] Figure 1 Schematic diagram of a first connecting component according to an embodiment of the present invention.

[0023] Figure 2 Schematic diagram of a second connection component according to an embodiment of the present invention.

[0024] Figure 3FIG. 1 is a partial top view of an electrical connection device according to an embodiment of the present invention.

[0025] Figure 4 It is a partial cross-sectional view of an electrical connection device according to an embodiment of the present invention.

[0026] Figure 5 Schematic diagram of a freight locomotive according to an embodiment of the present invention.

[0027] In the figure:

[0028] 1. First connecting assembly; 11. First protective cover; 111. First bottom plate; 112. First side plate; 113. First mounting plate; 114. First baffle plate; 1141. First horizontal plate; 1142. First vertical plate; 115. First cable management plate; 12. First electrical terminal; 13. First spring; 14. First protective plate; 141. First through hole; 142. First limiting step; 15. First positioning member; 151. First box; 152. Positioning hole; 16. First auxiliary elastic plate; 2. Second connecting assembly; 21. Second Protective cover; 211, second bottom plate; 212, second side plate; 213, second mounting plate; 214, second baffle plate; 2141, second horizontal plate; 2142, second vertical plate; 215, second wiring board; 22, second electrical terminal; 23, second spring; 24, second protective plate; 241, second through hole; 242, second limiting step; 25, second positioning member; 251, second box body; 252, positioning plug-in; 26, second auxiliary elastic plate; 3, mounting member; 4, elastic member; 5, zipper; 6, carriage; 61, hook. DETAILED DESCRIPTION

[0029] The advantages and features of the present invention and methods for achieving them will become apparent with reference to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. This embodiment is provided only to complete the disclosure of the present invention and to enable those skilled in the art to fully understand the scope of the present invention, and the present invention is limited only by the scope of the claims. The same reference numerals represent the same constituent elements throughout the specification.

[0030] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0031] like Figures 1 to 5 As shown, an electrical connection device is provided for realizing electrical interconnection between two adjacent carriages 6. The electrical connection device comprises 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. Figure 5 As shown, the first connecting component 1 is installed in Figure 5 The second connecting assembly 2 is mounted on the left side of the carriage 6 and is electrically connected to the electrical equipment on the carriage 6; Figure 5 The first connecting assembly 1 and the second connecting assembly 2 are connected to the carriage 6 on the right side of the middle carriage 6 and are electrically connected to the electrical equipment on the carriage 6. The electrical interconnection and disconnection between the two adjacent carriages 6 are achieved by docking and separation of the first connecting assembly 1 and the second connecting assembly 2.

[0032] Specifically, the first connection component 1 includes a first protective cover 11, a first electrical terminal 12, a first spring 13 and a first protective plate 14. The first protective cover 11 is a rectangular box structure, which plays a role in mechanical protection, dust protection and rain protection for the first electrical terminal 12. The first electrical terminal 12 is installed in the first protective cover 11, one end of the first electrical terminal 12 is electrically connected to the corresponding electrical equipment through 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 be connected to the second connection component 2 through the connection end. The first protective plate 14 is used to provide rain and dust protection for the part of the first electrical terminal 12 extending outside the first protective cover 11. The first protective plate 14 is penetrated on the side wall of the first protective cover 11, and the first protective plate 14 is elastically connected to the first protective cover 11 through 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 can move in the X direction shown in the figure and compress the first spring 13, that is, the first protective plate 14 can elastically move in the X direction shown in the figure. In this embodiment, the elastic movement can be understood as that when the first protective plate 14 moves toward the inside of the first protective cover 11, the first protective plate 14 can compress the first spring 13 and make the first spring 13 generate elastic potential energy. The first protective plate 14 is provided with a first through hole 141 that cooperates with the first electrical terminal 12, and the connecting end of the first electrical terminal 12 is inserted into the first through hole 141 of the first protective plate 14. When the first spring 13 is in a free state, the connecting end of the first electrical terminal 12 is located in the first through hole 141 to prevent the first electrical terminal 12 from being exposed, so as to protect the first electrical terminal 12 from rain and dust.

[0033] The second connection component 2 has a similar structure to the first connection component 1, and the two are symmetrically distributed. The second connection component 2 includes a second protective cover 21, a second electrical terminal 22, a second spring 23 and a second protective plate 24. The second protective cover 21 is a rectangular box structure, which plays a role in mechanical protection, dust protection and rain protection for the second electrical terminal 22. The second electrical terminal 22 is installed in the second protective cover 21, one end of the second electrical terminal 22 is electrically connected to the corresponding electrical equipment through 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 be connected to the first connection component 1 through the connection end. The second protective plate 24 is used to provide rain and dust protection for the part of the second electrical terminal 22 extending outside the second protective cover 21. The second protective plate 24 is arranged on the side wall of the second protective cover 21, and the second protective plate 24 is elastically connected to the second protective cover 21 through 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 can move in the X direction in the figure and compress the second spring 23, that is, the second protective plate 24 can elastically move in the X direction in the figure. In this embodiment, the elastic movement can be understood as that when the second protective plate 24 moves toward the inside of the second protective cover 21, the second protective plate 24 can compress the second spring 23 and make the second spring 23 generate elastic potential energy. The second protective plate 24 is provided with a second through hole 241 that cooperates with the second electrical terminal 22, and the connecting end of the second electrical terminal 22 is inserted into the second through hole 241 of the second protective plate 24. When the second spring 23 is in a free state, the connecting end of the second electrical terminal 22 is located in the second through hole 241 to prevent the second electrical terminal 22 from being exposed, so as to protect the second electrical terminal 22 from rain and dust.

[0034] When connecting two adjacent carriages 6, the first connecting assembly 1 and the second connecting assembly 2 are brought close to each other and squeezed to achieve electrical interconnection between the two carriages 6. When the first connecting assembly 1 and the second connecting assembly 2 are brought close to each other and squeezed, the first protective plate 14 and the second protective plate 24 are in contact with each other. Under the action of squeezing, the first protective plate 14 elastically moves toward the inside of the first protective cover 11, and the second protective plate 24 elastically moves toward the inside of the second protective cover 21. The connecting end of the first electrical terminal 12 and the connecting end of the second electrical terminal 22 are in contact with 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 protect the first electrical terminal 12 and the second electrical terminal 22 respectively to prevent the first electrical terminal 12 and the second electrical terminal 22 from being exposed. When the two carriages 6 are connected together, the first protective plate 14 and the second protective plate 24 move in opposite directions under the action of squeezing so that the first electrical terminal 12 and the second electrical terminal 22 can be connected together to achieve circuit conduction.

[0035] Specifically, refer to Figure 1 and Figure 2 As shown, the first protective cover 11 includes a first bottom plate 111, a first baffle plate 114 and four first side plates 112. The first bottom plate 111 and the first baffle plate 114 are arranged in parallel and spaced apart in the vertical direction (Z direction in the figure), and the four first side plates 112 are arranged between the first bottom plate 111 and the first baffle plate 114, wherein two first side plates 112 are arranged in parallel and spaced apart in the X direction in the figure, and the other two first side plates 112 are arranged in parallel and spaced apart in the Y direction in the figure. A hollow box structure is formed between the first bottom plate 111, the first baffle plate 114 and the four first side plates 112. The first protective plate 14 is installed on the first side plate 112 on the side close to the second connecting component 2. The first baffle plate 114 is located at the top of the first protective cover 11, that is, the first baffle plate 114 is located above the first protective plate 14, and the first baffle plate 114 plays a role in shielding the first protective plate 14 from rain, so as to prevent rain from wetting the first electrical terminal 12. The first baffle 114 is elastically connected to the first side plate 112 via a spring, so that the first baffle 114 can elastically move in the X direction shown in the figure. In the initial state, one end of the first baffle 114 blocks the top of the first protective plate 14 to achieve a rainproof function.

[0036] The second protective cover 21 includes a second bottom plate 211, a second baffle plate 214 and four second side plates 212. The second bottom plate 211 and the second baffle plate 214 are arranged in parallel and spaced apart in the vertical direction (Z direction in the figure), and the four second side plates 212 are arranged between the second bottom plate 211 and the second baffle plate 214, of which two second side plates 212 are arranged in parallel and spaced apart in the X direction in the figure, and the other two second side plates 212 are arranged in parallel and spaced apart in the Y direction in the figure. A hollow box structure is formed between the second bottom plate 211, the second baffle plate 214 and the four second side plates 212. The second protective plate 24 is installed on the second side plate 212 on the side close to the first connecting component 1. The second baffle plate 214 is located at the top of the second protective cover 21, that is, the second baffle plate 214 is located above the second protective plate 24, and the second baffle plate 214 plays a role in shielding the second protective plate 24 from rain, so as to prevent rain from wetting the second electrical terminal 22. The second baffle 214 is elastically connected to the second side plate 212 via a spring, so that the second baffle 214 can elastically move in the X direction shown in the figure. In the initial state, one end of the second baffle 214 blocks the upper part of the second protective plate 24 to achieve a rainproof function.

[0037] When the first connecting component 1 and the second connecting component 2 are brought close to and squeezed against each other, the first baffle 114 and the second baffle 214 abut against each other, and under the squeezing action, the first baffle 114 and the second baffle 214 elastically move in opposite directions to avoid the connection between the first electrical terminal 12 and the second electrical terminal 22.

[0038] Furthermore, in order to improve the rain shielding effect, the first baffle 114 and the second baffle 214 are configured as an "L"-shaped structure. The first baffle 114 includes a horizontally arranged first horizontal plate 1141 and a vertically arranged first vertical plate 1142, and the first vertical plate 1142 is vertically arranged at one end of the first horizontal plate 1141 close to the second connecting component 2. The free end of the first vertical plate 1142 extends upward. In this structure, the first vertical plate 1142 acts as a water barrier to prevent rainwater from falling from the side of the first baffle 114 close to the second connecting component 2, thereby reducing the risk of rainwater wetting the first electrical terminal 12. Correspondingly, the second baffle 214 includes a horizontally arranged second horizontal plate 2141 and a vertically arranged second vertical plate 2142, and the second vertical plate 2142 is vertically arranged at one end of the second horizontal plate 2141 close to the first connecting component 1. The free end of the second vertical plate 2142 extends upward. In this structure, the second vertical plate 2142 plays a water-blocking role, preventing rainwater from falling from the side of the second baffle plate 214 close to the first connecting component 1, thereby reducing the risk of rainwater soaking the second electrical terminal 22. When the first connecting component 1 and the second connecting component 2 are close to each other and squeezed, the first vertical plate 1142 and the second vertical plate 2142 abut against each other. Under the water-blocking effect of the first vertical plate 1142 and the second vertical plate 2142, rainwater can be prevented from flowing down from the gap between the first baffle plate 114 and the second baffle plate 214 and falling onto the first electrical terminal 12 and the second electrical terminal 22.

[0039] Specifically, refer to Figure 3 and Figure 4 As shown, the first protective cover 11 also includes a first mounting plate 113 and a first wiring board 115. The first mounting plate 113 is used to install and fix the first electrical terminal 12. The first mounting plate 113 is arranged inside the first protective cover 11, and the end of the first electrical terminal 12 away from its connection end is mounted on the first mounting plate 113 by a fastener, and the connection end of the first electrical terminal 12 extends toward the outside. The first electrical terminal 12 is a round rod structure, and the 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 realize the elastic installation of the first protective plate 14. There are multiple first electrical terminals 12, and the multiple first electrical terminals 12 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 distributed at intervals along the vertical direction. The first wire management plate 115 is disposed on the inner wall of the first protective cover 11 . The first wire management plate 115 is located on a side of the first mounting plate 113 away from the first protective plate 14 . The first wire management plate 115 is used to pass wires connected to the first electrical terminals 12 , thereby playing a wire management role.

[0040] The second protective cover 21 also includes a second mounting plate 213 and a second wiring plate 215. The second mounting plate 213 is used to install and fix the second electrical terminal 22. The second mounting plate 213 is arranged inside the second protective cover 21, and the end of the second electrical terminal 22 away from its connection end is mounted on the second mounting plate 213 by a fastener, and the connection end of the second electrical terminal 22 extends toward the outside. The second electrical terminal 22 is a round rod structure, and the 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 achieve 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 the 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 wire management plate 215 is disposed on the inner wall of the second protective cover 21 . The second wire management plate 215 is located on the side of the second mounting plate 213 away from the second protective plate 24 . The second wire management plate 215 is used to pass the wires connected to the second electrical terminals 22 , thereby performing a wire management function.

[0041] Specifically, refer to Figure 1 and Figure 4 As shown, the first protective plate 14 is provided with a first limiting step 142 on its periphery, and the first limiting step 142 is used to abut against the inner wall of the first protective cover 11 to limit the distance that the first protective plate 14 moves toward the outside of the first protective cover 11 under the elastic force of the first spring 13. And through the combined action of the first limiting step 142 and the first spring 13, the first protective plate 14 can be installed on the side wall of the first protective cover 11 to prevent the first protective plate 14 from being separated from the first protective cover 11. It can also be understood that the first protective plate 14 has a structure with one end larger and the other end smaller along its thickness direction, and the small end of the first protective plate 14 is inserted into the first side plate 112 of the first protective cover 11, and the large end of the first protective plate 14 is limited inside the first protective cover 11.

[0042] Specifically, refer to Figure 2 and Figure 4As shown, the second protective plate 24 is provided with a second limiting step 242 on its periphery, and the second limiting step 242 is used to abut against the inner wall of the second protective cover 21 to limit the distance that the second protective plate 24 moves toward the outside of the second protective cover 21 under the elastic force of the second spring 23. And through the joint action of the second limiting step 242 and the second spring 23, the second protective plate 24 can be installed on the side wall of the second protective cover 21 to prevent the second protective plate 24 from being separated from the second protective cover 21. It can also be understood that the second protective plate 24 is a structure with one end larger and the other end smaller along its thickness direction, the small end of the second protective plate 24 is inserted on the second side plate 212 of the second protective cover 21, and the large end of the second protective plate 24 is limited inside the second protective cover 21.

[0043] Specifically, continue to refer to Figure 1 and Figure 2 As shown, the first connecting component 1 also includes a first positioning member 15 and a first auxiliary elastic plate 16. The first positioning member 15 includes a first box body 151, and the first box body 151 is a rectangular box structure. The first box body 151 is detachably connected to the first protective cover 11 by fasteners. The first box body 151 is arranged at the bottom of the first protective cover 11, and a positioning hole 152 is arranged on the side of the first box body 151 facing the second connecting component 2. Correspondingly, the second connecting component 2 also includes a second positioning member 25 and a second auxiliary elastic plate 26. The second positioning member 25 includes a second box body 251, and the second box body 251 is a rectangular box structure. The second box body 251 is detachably connected to the second protective cover 21 by fasteners. The second box body 251 is arranged at the bottom of the second protective cover 21, and a positioning plug-in 252 is arranged on the side of the second box body 251 facing the first connecting component 1. The positioning plug 252 is arranged in cooperation with the positioning hole 152 , and the first connection component 1 and the second connection component 2 are positioned when docked by plugging and fitting between the positioning plug 252 and the positioning hole 152 , so as to ensure that the first electrical terminal 12 can be reliably docked with the second electrical terminal 22 .

[0044] The first auxiliary elastic plate 16 and the second auxiliary elastic plate 26 play a role in balancing the force between the first connecting component 1 and the second connecting component 2. The first auxiliary elastic plate 16 is elastically arranged at the bottom of the first positioning member 15, and the second auxiliary elastic plate 26 is elastically arranged at the bottom of the second positioning member 25. When the first connecting component 1 and the second connecting component 2 are close to each other and squeezed, the first auxiliary elastic plate 16 and the second auxiliary elastic plate 26 abut against each other and elastically move in opposite directions. In this embodiment, when the first connecting component 1 and the second connecting component 2 are docked, the first baffle plate 114 and the second baffle plate 214 located at the top position abut against each other and elastically move in opposite directions, and the first protective plate 14 and the second protective plate 24 abut against each other and elastically move in opposite reverse directions. At the same time, the first auxiliary elastic plate 16 and the second auxiliary elastic plate 26 located at the bottom position also abut against each other and elastically move in opposite directions. This structure allows the top and bottom areas of the first connecting component 1 and the second connecting component 2 to be subjected to more uniform force, thereby avoiding deflection of the first electrical terminal 12 and the second electrical terminal 22 when docking due to uneven force, and ensuring reliable docking of the first electrical terminal 12 and the second electrical terminal 22.

[0045] Specifically, refer to Figure 1 and Figure 2 As shown, the electrical connection device also includes a mounting member 3, an elastic member 4 and a zipper 5. The mounting member 3 is a steel structure component, which is used to be installed and fixed with the carriage 6, and the first connecting component 1 and the second connecting component 2 are both installed on the mounting member 3. The elastic member 4 is a spring, and the first connecting component 1 and the mounting member 3, as well as the second connecting component 2 and the mounting member 3 are elastically connected through the elastic member 4. It can be understood that when two adjacent carriages 6 are docked, the distance between the two carriages 6 is variable. By providing the elastic member 4, the elastic member 4 can be compressed when the first connecting component 1 and the second connecting component 2 are docked to adapt to the change in the distance between the two carriages 6, thereby ensuring the connection reliability of the first electrical terminal 12 and the second electrical terminal 22.

[0046] In this embodiment, the mounting member 3 is mounted on the carriage 6 by means of fasteners such as screws and bolts. One end of the elastic member 4 is connected and fixed to the mounting member 3, and the other end is connected and fixed to the first positioning member 15 or the second positioning member 25. A plurality of zippers 5 are arranged around each elastic member 4, one end of the zipper 5 is connected to the mounting member 3, and the other end is connected to the first positioning member 15 or the second positioning member 25. The zippers 5 are used to position the first connecting component 1 and the second connecting component 2 to ensure that the first connecting component 1 and the second connecting component 2 can be aligned, so as to facilitate docking between the two.

[0047] like Figure 1 , Figure 2 and Figure 5As shown, a freight locomotive is also provided, including a locomotive, a carriage 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, and the multiple carriages 6 are connected in series in sequence, and the locomotive is connected to one of the carriages 6 located at the end. The electrical connection device is arranged between two adjacent carriages 6, so that the two adjacent carriages 6 are connected in circuit and / or communication through the electrical connection device. A coupler 61 is arranged at the end of the carriage 6, and the coupler 61 is a prior art. The specific structure and working principle of the coupler 61 will not be described here. The two adjacent carriages 6 are connected by the coupler 61.

[0048] In this embodiment, the connection process of the two carriages 6 is as follows: the two adjacent carriages 6 are brought closer to each other until the hooks 61 on the two carriages 6 are buckled together to complete the docking of the carriages 6. As the two carriages 6 are brought closer to each other, the first connection assembly 1 and the second connection assembly 2 are brought closer to each other synchronously. The first positioning member 15 is plugged into the second positioning member 25 to align the first connection assembly 1 and the second connection assembly 2. Subsequently, the first baffle plate 114 and the second baffle plate 214 abut against each other and elastically move in opposite directions in the X direction shown in the figure, and the first auxiliary elastic plate 16 and the second auxiliary elastic plate 26 abut against each other and elastically move in opposite directions in the X direction shown in the figure. Finally, the first protective plate 14 and the second protective plate 24 abut against each other, and under the extrusion effect, 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 abut against each other to conduct the circuit.

[0049] Before the two carriages 6 are docked, the connection end of the first electrical terminal 12 is inserted into the first protective plate 14, and the connection end of the second electrical terminal 22 is inserted into the second protective plate 24, which can provide good rain and dust protection for the first electrical terminal 12 and the second electrical terminal 22, and prevent the first electrical terminal 12 and the second electrical terminal 22 from being polluted by external rain and dust. After the two carriages 6 are docked, after the first electrical terminal 12 is docked with the second electrical terminal 22, the first protective plate 14 is still sleeved on the outside of the first electrical terminal 12, and the second protective plate 24 is still sleeved on the outside of the second electrical terminal 22, to play a role in rain and dust. At the same time, the first baffle 114 and the second baffle 214 located above are abutted against each other, which can prevent rain from falling on the first protective plate 14 and the second protective plate 24 below, further improving the protection effect.

[0050] Although the 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 manufactured 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 basic features of the present invention. Therefore, it should be understood that the above embodiments are exemplary and not restrictive in all aspects.

Claims

1. An electrical connection device, characterized in that: include: A first connection assembly is mounted on one of the two adjacent carriages, the first connection assembly includes a first protective cover, a first protective plate is elastically provided on the first protective cover, the first protective plate is passed through a side wall of the first protective cover, and one end of the first protective plate extends to the outside of the first protective cover, a first electrical terminal is provided in the first protective cover, and a connection end of the first electrical terminal is passed through the first protective plate; a second connecting assembly, which is mounted on the other of the two adjacent carriages, the second connecting assembly comprising a second protective cover, a second protective plate being elastically provided on the second protective cover, the second protective plate being passed through a side wall of the second protective cover, and one end of the second protective plate extending to the outside of the second protective cover, a second electrical terminal being provided in the second protective cover, and a connecting end of the second electrical terminal being passed through the second protective plate; When the first connecting component and the second connecting component are approached and squeezed against each other, the first protective plate abuts against the second protective plate and moves toward the inside of the first protective cover and the second protective cover respectively, and the connecting ends of 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: A first limiting step is provided on the periphery of the first protective plate, and the first limiting step is used to abut against the inner wall of the first protective cover; a second limiting step is provided on the periphery of the second protective plate, and the second limiting step is used to abut against the inner wall of the second protective cover.

3. The electrical connection device according to claim 1, characterized in that: A first mounting plate is provided in the first protective cover, an end of the first electrical terminal away from its connection end is mounted on the first mounting plate, a first spring is sleeved around the periphery of the first electrical terminal, and two ends of the first spring are respectively connected to the first mounting plate and the first protective plate; A second mounting plate is arranged in the second protective cover, and the end of the second electrical terminal away from its connection end is mounted on the second mounting plate. A second spring is sleeved around the periphery of the second electrical terminal, and the two ends of the second spring are respectively connected to the second mounting plate and the second protective plate.

4. The electrical connection device according to claim 3, characterized in that: There are multiple first electrical terminals, and the multiple first electrical terminals are distributed in multiple rows along the vertical direction; there are multiple second electrical terminals, and the multiple second electrical terminals are distributed in multiple rows along the vertical direction; the multiple first electrical terminals and the multiple second electrical terminals are arranged in a one-to-one correspondence.

5. The electrical connection device according to claim 3, characterized in that: The first protective cover includes a first baffle elastically arranged above the first protective plate, and the second protective cover includes a second baffle elastically arranged above the second protective plate. When the first connecting component and the second connecting component are approached and squeezed against each other, the first baffle abuts against the second baffle.

6. The electrical connection device according to claim 5, characterized in that: The first baffle plate includes a first horizontal plate and a first vertical plate which are vertically arranged, the first vertical plate is located at one end of the first horizontal plate close to the second connecting component, and the free end of the first vertical plate extends upward; the second baffle plate includes a second horizontal plate and a second vertical plate which are vertically arranged, the second vertical plate is located at one end of the second horizontal plate close to the first connecting component, and the free end of the second vertical plate extends upward; when the first connecting component and the second connecting component are approached and squeezed against each other, the first vertical plate abuts against the second vertical plate.

7. The electrical connection device according to claim 5, characterized in that: The first connection component further includes a first positioning member disposed at the bottom of the first protective cover, and the second connection component further includes a second positioning member disposed at the bottom of the second protective cover, and the first positioning member is plug-fitted with the second positioning member.

8. The electrical connection device according to claim 7, characterized in that: A first auxiliary elastic plate is elastically provided at the bottom of the first connecting component, and a second auxiliary elastic plate is elastically provided at the bottom of the second connecting component. When the first connecting component and the second connecting component are approached and squeezed against each other, the first auxiliary elastic plate abuts against the second auxiliary elastic plate and moves elastically.

9. The electrical connection device according to any one of claims 1 to 8, characterized in that: It also includes an elastic member, through which the first connecting assembly and the corresponding carriage are elastically connected, and the second connecting assembly and the corresponding carriage are elastically connected through the elastic member.

10. A freight locomotive, characterized in that: It comprises a plurality of carriages and an electrical connection device as claimed in any one of claims 1 to 9, wherein the electrical connection device is arranged between two adjacent carriages so that the two adjacent carriages are connected in circuit and / or communication via the electrical connection device.

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