Wire holder with protective property and convenience, motor and vehicle

Abstract

The utility model provides a wire holder with protection and convenience, a motor and a vehicle, the wire holder comprises a holder body and a binding post, the binding post comprises a shell and a core column, the shell is arranged at the periphery of the core column, two opposite ends of the core column are respectively provided with an external connection end and an internal connection end, the outer wall of the shell is provided with a positioning step at the external connection end, and the positioning step is arranged at the internal connection end. The core column penetrates through the mounting hole, the external connection end is located outside the wiring cavity, the internal connection end is located in the wiring cavity, and the positioning step is adjacent to the outer end face of the mounting hole; the wire holder further comprises an insulation supporting ring and an inner connecting piece, the insulation supporting ring sleeves the periphery of the inner connecting end, the first end portion of the insulation supporting ring is adjacent to the inner end face of the mounting hole, the inner connecting piece is connected with the inner connecting end, and the inner connecting piece is matched with the second end portion of the insulation supporting ring in a limiting mode. The binding post can be assembled and fixed by limiting and matching the inner connecting piece with the second end part of the insulating support ring, and the independent assembly of a single binding post is utilized, so that the protective property is better, the assembly procedures are reduced, and the assembly convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of new energy, and in particular to a wiring socket, a motor and a vehicle that are both protective and convenient. Background Art

[0002] New energy vehicles do not generate power by burning gasoline or diesel, so they have many characteristics such as environmental protection and low pollution. With the vigorous promotion and application of new energy power generation such as hydropower, wind power, solar power and nuclear power, many new energy vehicles are gradually being promoted and applied, such as new energy electric cars, new energy electric buses, new energy electric trucks, new energy electric cleaning vehicles, new energy electric rail vehicles, new energy electric flying vehicles, new energy electric shipping vehicles, etc.

[0003] New energy vehicles are generally equipped with motors. Existing motors often use integrated three-phase wire terminals. Due to their complex structure, they are difficult to assemble, have a high defect rate, and have high mold costs, which increases costs. In addition, the integrated terminals need to be fastened to the housing with screws. Not only do screws are required for assembling the terminals, but additional screws are also required for wiring, so more assembly steps are required. In addition, each phase of the integrated terminal needs to ensure a sealing effect. If the seal of one phase fails, the entire terminal cannot be used, which in turn causes waste. In addition, the contact area of ​​the integrated terminal is large, and the risk of failure is increased. For this reason, it is necessary to design a wiring structure that is both protective and convenient. Utility Model Content

[0004] The first object of the present invention is to provide a wiring socket that is both protective and convenient.

[0005] The second object of the present utility model is to provide a motor having the above-mentioned terminal block.

[0006] A third object of the present invention is to provide a vehicle with a motor.

[0007] In order to achieve the first purpose of the utility model, the utility model provides a terminal block with both protection and convenience, including a base body and a terminal post, the base body forms a terminal cavity, the base body is penetrated by a mounting hole, the mounting hole is connected to the terminal cavity, and the terminal post is installed in the mounting hole; the terminal post includes an outer shell and a core column, the outer shell is arranged on the outer periphery of the core column, the core column is respectively provided with an external connection end and an internal connection end at opposite ends, the outer wall of the outer shell is provided with a positioning step at the external connection end, the core column passes through the mounting hole, the external connection end is located outside the terminal cavity, the internal connection end is located inside the terminal cavity, and the positioning step is adjacent to the outer end face of the mounting hole; the terminal block also includes an insulating support ring and an internal connecting piece, the insulating support ring sleeves the outer periphery of the internal connection end, the first end of the insulating support ring is adjacent to the inner end face of the mounting hole, the internal connecting piece is connected to the internal connection end, and the internal connecting piece is limitedly matched with the second end of the insulating support ring.

[0008] It can be seen from the above scheme that the limiting on one side is first completed by the proximity of the positioning step of the outer shell to the outer end face of the mounting hole, and then the core column is used to pass through the mounting hole and the internal connection end is located in the wiring cavity, and then the insulating support ring is put on the outer periphery of the internal connection end, and finally connected to the internal connection end through a connecting piece, and the internal connection piece is limited and matched with the second end of the insulating support ring to complete the limiting fixation of the other side of the terminal. The independent assembly of a single terminal not only has better protection, but also reduces the assembly process and improves the convenience of assembly.

[0009] A further solution is that the terminal block includes an inner cable, the inner connector passes through a connection terminal of the inner cable and is connected to the inner connection end, and the connection terminal of the inner cable is adjacent to the inner connector and the second end of the insulating support ring.

[0010] As can be seen from the above, by limiting the connection terminals of the inner cables, it is possible to achieve both one-time assembly and wiring and simultaneous assembly and fixation of the terminal posts, thereby further improving assembly efficiency.

[0011] A further solution is that the internal connector adopts a screw, and the internal connection end is provided with a screw hole. The screw passes through the connection terminal of the inner cable and is connected to the screw hole. The connection terminal of the inner cable is adjacent to the head of the screw and the second end of the insulating support ring.

[0012] As can be seen from the above, the arrangement of screws and screw holes not only makes assembly convenient but also allows for stable positioning and fixation.

[0013] A further solution is that the mounting hole, the core column, the insulating support ring and the inner connecting piece all extend along the axial direction of the screw hole.

[0014] As can be seen from the above, by assembling along the axial direction, the assembly stability of each component can be improved, thereby improving the protection.

[0015] A further solution is that a column portion is connected between the first end and the second end of the core column, and a ring portion is provided on the outer periphery of the column portion, and the column portion and the ring portion pass through the mounting hole.

[0016] A further solution is to integrally inject the shell and the core.

[0017] As can be seen from the above, the protection of the terminal can be further improved by wrapping the ring and integral injection molding.

[0018] A further solution is that the terminal block includes an external cable and an external connector, and the external connector passes through a connecting terminal of the external cable and is connected to the external connection end.

[0019] As can be seen from the above, by connecting the external cable and the external connector, the terminal block can be easily connected to the power supply part.

[0020] A further solution is that a sealing groove is provided on the outer end surface of the mounting hole, the terminal block includes a sealing ring, the sealing ring is provided in the sealing groove, and the positioning step is interference fit with the sealing ring.

[0021] As can be seen from the above, the protective sealing of the outer side of the seat body and the terminal can be further improved through the arrangement of the sealing groove and the sealing ring.

[0022] In order to achieve the second purpose of the present invention, the present invention provides a motor, comprising the terminal block according to the above solution.

[0023] In order to achieve the third purpose of the present utility model, the present utility model provides a vehicle, comprising a motor as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an embodiment of the motor of the present utility model.

[0025] Figure 2 It is a structural diagram of the terminal and the insulating support ring in the motor embodiment of the utility model.

[0026] Figure 3 It is a cross-sectional view of the terminal and the insulating support ring in the motor embodiment of the utility model.

[0027] Figure 4 It is a partial cross-sectional view of the motor embodiment of the present utility model at the terminal.

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0029] Reference Figures 1 to 4 The motor 1 includes a motor housing 11, a terminal block 12, a stator and a rotor. The stator and the rotor are arranged in the motor housing 11. The terminal block 12 is arranged at the rear end of the shaft of the motor housing 11. The motor housing 11 and the terminal block 12 can be arranged in a split connection, or the motor housing 11 and the terminal block 12 can be arranged in an integral molding. The stator has three-phase leads. The terminal block includes a base body 12, a terminal post 2, an insulating support ring 24, a sealing ring 23 and an internal connector 33. The base body 12 forms a terminal cavity 121, and each phase lead is led out into the terminal cavity 121. A mounting hole 122 is provided through the base body 12. The mounting hole 122 is connected to the terminal cavity 121, and the terminal post 2 is installed in the mounting hole 122.

[0030] The terminal 2 includes an outer shell 21 and a core column 22. The outer shell 21 is arranged on the outer periphery of the core column 22. The core column 22 is respectively provided with an external connection end 221 and an internal connection end 222 at opposite ends. The external connection end 221 and the internal connection end 222 are respectively provided with screw holes. The core column 22 is connected with a column portion 223 between the first end 241 and the second end 242. The outer wall of the outer shell 21 is provided with a positioning step 211 at the external connection end 221. The outer shell 21 is provided with a ring portion 212 on the outer periphery of the column portion 223. The outer shell 21 and the core column 22 are injection molded as one piece.

[0031] The column portion 223 and the ring portion 212 of the core column 22 pass through the mounting hole 122, the external connection end 221 is located outside the wiring cavity 121, and the internal connection end 222 is located inside the wiring cavity 121. The ring portion 212 is clearance-fitted with the mounting hole 122, and a sealing groove 123 is provided on the outer end surface of the mounting hole 122. The sealing ring 23 is provided in the sealing groove 123. The positioning step 211 is interference-fitted with the sealing ring 23, and the sealing ring 23 is sleeved on the outer wall of the ring portion 212. The positioning step 211 is also adjacent to the outer end surface of the mounting hole 122.

[0032] The insulating support ring 24 is arranged in a ring shape, and the mounting hole 122, the core column 22, the insulating support ring 24 and the internal connecting piece 33 all extend axially along the screw hole of the internal connection end 222. The insulating support ring 24 is located in the wiring cavity 121. The insulating support ring 24 is sleeved on the outer periphery of the internal connection end 222 and is located on the outer periphery of the ring portion 212. The first end portion 241 of the insulating support ring 24 is adjacent to the inner end surface of the mounting hole 122.

[0033] The terminal block also includes an inner cable 31, an outer cable 32 and an outer connector 34. The inner cable 31 is one of the three-phase lead cables. The connection terminal 311 of the inner cable 31 has a wire nose, and the connection terminal 321 of the outer cable 32 has a wire nose. The inner connector 33 adopts a screw, which passes through the connection terminal 311 of the inner cable 31 and is connected to the screw hole of the inner connection end 222. The connection terminal 311 of the inner cable 31 is adjacent to the head 331 of the screw and the second end 242 of the insulating support ring 24. Then, the connection terminal 311 of the inner cable 31 is respectively limited with the head 331 of the screw and the second end 242 of the insulating support ring 24 to achieve the limited cooperation between the inner connector 33 and the second end 242 of the insulating support ring 24.

[0034] The external cable 32 and the external connector 34 are located outside the wiring cavity 121. The external connector 34 is a screw. The external connector 34 passes through the connection terminal 321 of the external cable 32 and is connected to the external connection end 221. The head 341 of the external connector 34 is limitedly engaged with the connection terminal 321.

[0035] During actual assembly and connection, the positioning step 211 of the outer shell 21 is first adjacent to the outer end face of the mounting hole 122 to complete the outer side limitation, and then the core column 223 is used to pass through the mounting hole 122 and make the inner connection end 222 located in the wiring cavity 121. Then, the insulating support ring 24 is put on the outer periphery of the inner connection end 222, and the inner connecting member 33 is passed through the connecting terminal 311 of the inner cable 31 to connect with the inner connection end 222. After tightening, the connecting terminal 311 of the inner cable 31 is respectively limited with the head 331 of the screw and the second end 242 of the insulating support ring 24, thereby completing the inner side limitation. Finally, the outer cable 32 is connected to complete the single-phase wiring.

[0036] Of course, the above-mentioned terminal 2, insulating support ring 24 and inner connector constitute a single-phase wiring assembly, and the wiring of the three-phase line can be completed by simply repeating the above steps. Moreover, the above-mentioned embodiment is only a preferred embodiment of this case, and more variations can be made in actual applications. For example, when it is not necessary to connect an inner cable, the inner connector can be provided with a larger head. As long as the head of the inner connector is larger than the projected area of ​​the insulating support ring, it can also limit the position of the insulating support ring and then achieve the assembly and fixation of the terminal. In addition to screws, the inner and outer connectors also have a variety of connection and fixation methods, including but not limited to clamps, blocks, nuts, buckles, slots, etc., which can simultaneously connect the cables and limit the position of the insulating support ring and achieve the assembly and fixation of the terminal.

[0037] And the inventive concept applied to this case, the types of motors in this case include but are not limited to permanent magnet synchronous motors, brushed DC motors, brushless DC motors, induction asynchronous motors, and AC motors, and the vehicles include motors such as the above, and the vehicles can be new energy electric cars, new energy electric buses, new energy electric trucks, new energy electric cleaning vehicles, new energy electric rail vehicles, new energy electric flying vehicles, new energy electric shipping vehicles, etc.

[0038] As can be seen from the above, the terminal assembly and fixation can be completed by limiting the cooperation between the internal connecting part and the second end of the insulating support ring. The independent assembly of a single terminal not only provides better protection, but also reduces the assembly process and improves assembly convenience.

Claims

1. A terminal block that combines protection and convenience, comprising a base and terminal posts, the base body forming a terminal cavity, a mounting hole extending through the base body, the mounting hole communicating with the terminal cavity, and the terminal posts being mounted in the mounting hole; Its characteristics are: The terminal comprises a shell and a core, the shell being arranged on the outer periphery of the core, the core being respectively provided with an external connection end and an internal connection end at opposite ends, the outer wall of the shell being provided with a positioning step at the external connection end, the core passing through the mounting hole, the external connection end being located outside the wiring cavity, the internal connection end being located inside the wiring cavity, and the positioning step being adjacent to the outer end surface of the mounting hole; The terminal block also includes an insulating support ring and an internal connector. The insulating support ring is sleeved around the outer periphery of the internal connection end. The first end of the insulating support ring is adjacent to the inner end surface of the mounting hole. The internal connector is connected to the internal connection end. The internal connector is limitedly engaged with the second end of the insulating support ring.

2. The terminal block according to claim 1, wherein: The wiring seat includes an inner cable, the inner connector passes through a connection terminal of the inner cable and is connected to the inner connection end, and the connection terminal of the inner cable is adjacent to the inner connector and the second end of the insulating support ring.

3. The terminal block according to claim 2, wherein: The inner connecting member is a screw, and the inner connecting end is provided with a screw hole. The screw passes through the connecting terminal of the inner cable and is connected to the screw hole. The connecting terminal of the inner cable is adjacent to the head of the screw and the second end of the insulating support ring.

4. The terminal block according to claim 3, wherein: The mounting hole, the core column, the insulating support ring and the inner connecting piece all extend along the axial direction of the screw hole.

5. The terminal block according to claim 1, wherein: The core column is connected to a column portion between the first end portion and the second end portion, and the housing is provided with a ring portion on the outer periphery of the column portion. The column portion and the ring portion pass through the mounting hole.

6. The terminal block according to claim 5, wherein: The shell and the core column are integrally injection-molded.

7. The terminal block according to claim 1, wherein: The wiring seat includes an external cable and an external connector, and the external connector passes through a connecting terminal of the external cable and is connected to the external connection end.

8. The terminal block according to any one of claims 1 to 7, characterized in that: The outer end surface of the mounting hole is provided with a sealing groove, the wiring seat includes a sealing ring, the sealing ring is arranged in the sealing groove, and the positioning step is interference-fitted with the sealing ring.

9. The motor is characterized in that The invention comprises a wiring seat as claimed in any one of claims 1 to 8.

10. A means of transport, characterized in that It comprises the motor as claimed in claim 9 above.

Images