A rail transit traction motor connector

Abstract

This utility model discloses a rail transit traction motor connector, including a socket housing, an insulating platform, a socket cover, and a connecting assembly. The socket housing has a main cavity structure for accommodating the connecting assembly. At least a portion of the connecting assembly is fixed inside the insulating platform, which is fixed to the socket housing via the socket cover. The connecting assembly includes a first and a second connector that are perpendicular to each other, and these two connectors are movably connected. In this design, the insulating platform is fixed inside the socket housing via the socket cover and the socket housing. The perpendicular first and second connectors, movably connected, allow for a 90° connection and facilitate subsequent installation and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection technology, and in particular to a traction motor connector for rail transit. Background Technology

[0002] In existing motor connector technology, the design of straight-in / straight-out (180°) and straight-in / angle (90°) structures faces significant technical bottlenecks. For angle structures, traditional solutions generally use bolted connections to achieve the transition function, such as fixing L-shaped metal adapter plates with bolts or assembling separate housing components. Specifically, this involves drilling threaded holes in the side wall of the connector housing and using M4-M6 bolts for mechanical fastening. While this technical solution can achieve basic steering functionality, it has three main drawbacks:

[0003] Firstly, bolted connections require additional machining of threaded holes and configuration of independent fasteners, which increases the number of parts, not only increasing the complexity of the mold but also increasing the time required for the assembly process.

[0004] Secondly, uneven distribution of bolt preload can easily lead to stress concentration in the housing, and the threaded pair is prone to loosening under long-term vibration, causing the contact resistance to fluctuate beyond the preset value.

[0005] Third, the protruding bolt occupies radial installation space. When the connector is placed in a narrow area of ​​the motor end cover, the distance between the protruding bolt head and the adjacent cable is often less than the safety threshold, which can easily cause insulation wear or short circuit risk.

[0006] Furthermore, repeated disassembly and reassembly cause thread wear, which weakens connection reliability. While improved solutions using spring washers or thread-locking adhesive can alleviate loosening, they cannot eliminate structural redundancy and are not conducive to automated assembly. These defects make traditional bolt-connected corner structures unable to meet the space utilization and reliability requirements of high-density integrated motors. Utility Model Content

[0007] The purpose of this utility model is to provide a rail transit traction motor connector that addresses the above-mentioned shortcomings. It solves the problem that in the prior art, when making 90° turn connections, bolt connections are usually used, which can easily cause inconvenience in installation and maintenance during later use.

[0008] This utility model is achieved through the following solution:

[0009] A rail transit traction motor connector includes a socket housing, an insulating platform, a socket cover, and a connecting assembly. The socket housing has a main cavity structure for accommodating the connecting assembly. At least a portion of the connecting assembly is fixedly disposed inside the insulating platform. The insulating platform is fixed inside the socket housing by the socket cover. The connecting assembly has a first connecting member and a second connecting member that are perpendicular to each other. The first connecting member and the second connecting member are movably disposed.

[0010] Based on the above-mentioned structure of a rail transit traction motor connector, the insulating platform includes a first support cylinder, a second support cylinder, and a receiving cavity; each of the receiving cavities is provided with a first open end and a second open end that cooperate with the first support cylinder and the second support cylinder, the first support cylinder is connected to the first open end, and the second support cylinder is connected to the second open end; and the central axis of the first support cylinder is perpendicular to and intersects the central axis of the second support cylinder.

[0011] Based on the structure of the above-mentioned rail transit traction motor connector, a limiting ring is provided at the end of the first support cylinder away from the electrical cavity. The limiting ring is used to cooperate with the first connector to achieve locking, so that the first connector and the insulating platform are connected as a whole.

[0012] Based on the structure of the above-mentioned rail transit traction motor connector, a first mating cavity and a limiting boss are provided on the end of the electrical cavity that is directly opposite to the first support cylinder.

[0013] Based on the structure of the above-mentioned rail transit traction motor connector, a second mating cavity is provided on the end of the electrical cavity that is directly opposite to the second support cylinder, and the size of the second mating cavity is not greater than the size of the internal cavity of the first support cylinder.

[0014] Based on the structure of the above-mentioned rail transit traction motor connector, the first connector includes a corner contact and a first plug pin; one end of the corner contact is provided with a first cavity for accommodating the first plug pin, and the first plug pin can be inserted into the first cavity to achieve electrical connection with the corner contact; the end of the corner contact away from the first contact is provided with a limiting groove that cooperates with the limiting boss.

[0015] Based on the structure of the above-mentioned rail transit traction motor connector, a locking stop is provided on the outer wall of the corner contact near the first cavity, which cooperates with the limiting ring.

[0016] Based on the structure of the above-mentioned rail transit traction motor connector, the end of the corner contact near the second cavity is provided with a plug hole that mates with the second connector.

[0017] Based on the structure of the above-mentioned rail transit traction motor connector, the second connector is a second plug pin, and the size of the end of the second plug pin is adapted to the plug hole.

[0018] Based on the structure of the above-mentioned rail transit traction motor connector, a limiting post is provided in the main cavity structure to restrict the insulating platform; the limiting post is provided on the side wall of the main cavity structure opposite to the socket cover.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. In this solution, the insulating platform is fixed inside the socket housing by the socket cover and the socket housing. This solution is provided with a first connecting member and a second connecting member that are perpendicular to each other. The first connecting member and the second connecting member are movable. On the one hand, the entire connection structure can be connected at 90°. On the other hand, the movable connection structure facilitates subsequent installation and maintenance. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the entire utility model;

[0023] Figure 3 This is an enlarged structural schematic diagram of the insulating platform in this utility model;

[0024] Figure 4 This is a cross-sectional structural diagram of the insulating platform in this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the interconnecting component in this utility model;

[0026] Figure 6 This is a cross-sectional structural diagram of the interconnecting component in this utility model;

[0027] Figure 7 This is a schematic diagram showing the position of the limiting post of this utility model;

[0028] Figure Descriptions: 1. Socket housing; 2. Insulating platform; 3. Socket cover; 4. Main cavity structure; 21. First support cylinder; 22. Second support cylinder; 23. Electrical receiving cavity; 24. First opening end; 25. Second opening end; 26. Limiting ring; 51. First connector; 52. Second connector; 131. First mating cavity; 132. Limiting boss; 133. Second mating cavity; 151. Corner contact; 152. First plug pin; 153. First cavity; 154. Limiting groove; 155. Locking clip; 156. Plug hole; 41. Limiting post. Detailed Implementation

[0029] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0030] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0033] Example 1

[0034] like Figures 1-7 As shown, this utility model provides a technical solution:

[0035] A rail transit traction motor connector includes, but is not limited to, a socket housing 1, an insulating platform 2, a socket cover 3, and a connecting assembly; the socket housing 1 has a main cavity structure 4 for accommodating the connecting assembly, at least part of the connecting assembly is fixedly disposed inside the insulating platform 2, the insulating platform 2 is fixed inside the socket housing 1 by the socket cover 3, and the connecting assembly has a first connecting member 51 and a second connecting member 52 that are perpendicular to each other, and the first connecting member 51 and the second connecting member 52 are movably disposed.

[0036] Based on the above structure, the insulating platform 2 is fixed inside the socket housing 1 by the socket cover plate 3 and the socket housing 1. In this solution, a first connecting member 51 and a second connecting member 52 that are perpendicular to each other are provided, and the first connecting member 51 and the second connecting member 52 are movably set. On the one hand, the entire connection structure can be connected at 90°, and on the other hand, the movably set connection structure facilitates subsequent installation and maintenance.

[0037] As an example, the insulating platform 2 may include a first support cylinder 21, a second support cylinder 22, and a receiving cavity 23; each of the receiving cavities 23 is provided with a first open end 24 and a second open end 25 that cooperate with the first support cylinder 21 and the second support cylinder 22, the first support cylinder 21 is connected to the first open end 24, and the second support cylinder 22 is connected to the second open end 25; and the central axis of the first support cylinder 21 and the central axis of the second support cylinder 22 are perpendicular to and intersect each other;

[0038] Based on the above structure, when in use, the first connector 51 and the second connector 52 are inserted into the first support cylinder 21 and the second support cylinder 22, and the central axis of the first support cylinder 21 is perpendicular to and intersects with the central axis of the second support cylinder 22. This ensures that the first connector 51 and the second connector 52 can be accurately aligned during the insertion process, thus achieving stable power connection operation.

[0039] As an example, a limiting ring 26 is provided at the end of the first support cylinder 21 away from the end of the electrical cavity 23. The limiting ring 26 is used to cooperate with the first connector 51 to achieve locking, so that the first connector 51 and the insulating platform 2 are connected as a whole, thereby enhancing the stability and safety when connected to electricity.

[0040] As an example, a first mating cavity 131 and a limiting boss 132 are provided on the end of the electrical cavity that is directly opposite to the first support cylinder 21;

[0041] Based on the above structure, the first mating cavity 131 is used to mate with the first connector 51, so that the first connector 51 can be stably inserted into the electrical connection cavity, providing a foundation for electrical connection. The limiting boss 132 is used to restrict the first connector 51, preventing the first connector 51 from deflecting, so that the first connector 51 and the second connector 52 can be efficiently connected for electrical connection.

[0042] As an example, a second mating cavity 133 is provided on the end of the electrical cavity that is directly opposite to the second support cylinder 22. The size of the second mating cavity 133 is not greater than the size of the internal cavity of the first support cylinder 21.

[0043] Based on the above structure, by setting the size of the second mating cavity 133 to be no larger than the size of the internal cavity of the first support cylinder 21, the second mating cavity 133 and the internal cavity of the first support cylinder 21 can form a stepped structure, which facilitates the subsequent assembly of components.

[0044] As an example, the first connector 51 may include a corner contact 151 and a first plug pin 152; one end of the corner contact 151 is provided with a first cavity 153 for accommodating the first plug pin 152, and the first plug pin 152 can be inserted into the first cavity 153 to achieve electrical connection with the corner contact 151; the end of the corner contact 151 away from the first contact is provided with a limiting groove 154 that cooperates with the limiting boss 132;

[0045] A locking stop 155 that cooperates with the limiting ring 26 is provided on the outer side wall of the corner contact 151 near the first cavity 153;

[0046] An insertion hole 156 that mates with the second connector 52 is provided at the end of the corner contact 151 near the second cavity;

[0047] Based on the above structure, the corner contact 151 specially designed in this solution is locked by the locking clip 155 cooperating with the limiting ring 26. That is, after installation, the corner contact 151 cannot be disassembled and must be replaced together with the insulating platform 2, which ensures the stability of the power connection. At the same time, a limiting groove 154 is provided on the corner contact 151 to lock the position of the corner contact 151, so as to prevent the plug interface from deflecting due to the angle change of the corner contact 151 after installation, thus ensuring the stability of the power connection.

[0048] As an example, the second connector 52 can be a second plug pin, the end of which is adapted to the plug hole 156, so that the second plug pin can be stably inserted into the plug hole 156 of the corner contact 151, thereby realizing the connection operation with the corner contact 151.

[0049] As an example, a limiting post 41 is provided inside the main cavity structure 4 to restrict the insulating platform 2; the limiting post 41 is provided on the side wall of the main cavity structure 4 opposite to the socket cover plate 3.

[0050] Based on the above structure, in this solution, the insulating platform 2 is fixed by the socket housing 1 and the socket cover plate 3. The front and back sway of the insulating platform 2 is ensured by the limiting post 41 of the socket housing 1, and the up and down sway of the insulating platform 2 is controlled by the cover plate, so that the insulating platform 2 is finally stably fixed.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rail transit traction motor connector, characterized in that, The device includes a socket housing, an insulating platform, a socket cover, and a connecting assembly. The socket housing has a main cavity structure for accommodating the connecting assembly. At least a portion of the connecting assembly is fixedly disposed inside the insulating platform. The insulating platform is fixed inside the socket housing by the socket cover. The connecting assembly has a first connecting member and a second connecting member that are perpendicular to each other. The first connecting member and the second connecting member are movably disposed.

2. A rail transit traction motor connector as claimed in claim 1, characterized in that: The insulating platform includes a first support cylinder, a second support cylinder, and a receiving cavity; each of the receiving cavities is provided with a first open end and a second open end that cooperate with the first support cylinder and the second support cylinder, the first support cylinder is connected to the first open end, and the second support cylinder is connected to the second open end; and the central axis of the first support cylinder and the central axis of the second support cylinder are perpendicular to each other and intersecting.

3. A rail transit traction motor connector as claimed in claim 2, characterized in that: A limiting ring is provided inside the first support cylinder at a position away from the end of the electrical cavity. The limiting ring is used to cooperate with the first connector to achieve locking, so that the first connector and the insulating platform are connected as a whole.

4. A rail transit traction motor connector as claimed in claim 3, characterized in that: The electrical cavity is provided with a first mating cavity and a limiting boss at the end opposite to the first support cylinder.

5. A rail transit traction motor connector as described in claim 4, characterized in that: A second mating cavity is provided on the end of the electrical cavity that is directly opposite the second support cylinder. The size of the second mating cavity is not greater than the size of the internal cavity of the first support cylinder.

6. A rail transit traction motor connector as claimed in claim 5, characterized in that: The first connector includes a corner contact and a first plug pin; one end of the corner contact is provided with a first cavity for accommodating the first plug pin, and the first plug pin can be inserted into the first cavity to achieve electrical connection with the corner contact; the end of the corner contact away from the first contact is provided with a limiting groove that cooperates with the limiting boss.

7. A rail transit traction motor connector as claimed in claim 6, characterized in that: The corner contact is provided with a locking clip on the outer wall near the first cavity, which cooperates with the limiting ring.

8. A rail transit traction motor connector as claimed in claim 7, characterized in that: The corner contact has a insertion hole at the end near the second cavity that mates with the second connector.

9. A rail transit traction motor connector as claimed in claim 8, characterized in that: The second connector is a second plug pin, and the size of the end of the second plug pin is adapted to the plug hole.

10. A rail transit traction motor connector as claimed in claim 9, characterized in that: The main cavity structure is provided with a limiting post to restrict the insulating platform; the limiting post is located on the side wall of the main cavity structure opposite to the socket cover.

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