Connecting structure of motor stator outgoing line and high-voltage wiring harness

Abstract

The utility model relates to a connecting structure of a motor stator outgoing line and a high-voltage wire harness, which is used for connecting the high-voltage wire harness and the stator outgoing line, the stator outgoing line is led out from a connecting end of a stator and a rear end cover, the connecting structure further comprises a connecting seat, and a first wire passing hole and a fixed base are arranged on the connecting seat side by side. The rear end cover is provided with a second wire passing hole and a third wire passing hole. A fixing groove matched with the connecting base is formed in the end, away from the stator, of the rear end cover, the connecting base is located in the fixing groove, the high-voltage wire harness penetrates through the third wire passing hole, and the stator outgoing line sequentially penetrates through the second wire passing hole and the first wire passing hole to be connected with the high-voltage wire harness and is fixed to the fixing base together with the high-voltage wire harness. Compared with the prior art, the device has the advantages of being small in occupied space, saving materials, reducing cost and the like.

Description

Technical Field

[0001] The utility model relates to the field of new energy electric vehicle drive motors, in particular to a motor stator lead-out wire and high-voltage wire harness connection structure. Background Art

[0002] At present, new energy vehicles have occupied an important position in the automobile manufacturing market. As one of the three core components of new energy vehicles, the status of the automobile drive motor of new energy vehicles is self-evident. The whole vehicle has high requirements for space utilization, which corresponds to the requirement that the radial and axial dimensions of the drive motor should be as small as possible.

[0003] The existing drive motor uses copper busbars to connect the high-voltage wiring harness and the stator lead-out wires, which increases the radial size and cost. Placing the junction box in the middle of the motor tail when radial space is limited increases the axial length of the motor. The increase in the radial and axial sizes of the motor leads to an increase in the material of components and does not utilize the overall vehicle layout. The setting of the copper busbar parts for the transfer leads to increased costs. Utility Model Content

[0004] The purpose of the utility model is to provide a motor stator lead wire and high voltage wire harness connection structure in order to overcome the defects of the prior art that the stator lead wire and the high voltage wire harness are connected through a transfer copper bar, which occupies a large space and has high cost.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A motor stator lead wire and high-voltage wire harness connection structure, used to connect the high-voltage wire harness and the stator lead wire, the stator lead wire is led out from the connection end between the stator and the rear end cover, the connection structure also includes a connection seat, the connection seat is provided with a first wire hole and a fixing base side by side, and the rear end cover is provided with a second wire hole and a third wire hole;

[0007] The end of the rear end cover away from the stator is provided with a fixing groove matching with the connecting seat, the connecting seat is located in the fixing groove, the high-voltage wire harness passes through the third wire passing hole, and the stator lead wire passes through the second wire passing hole and the first wire passing hole in sequence to be connected with the high-voltage wire harness and fixed together on the fixed base.

[0008] Preferably, one end of the stator lead wire is connected to a first terminal, one end of the high-voltage wire harness is connected to a second terminal, the first terminal and the second terminal are connected via a connector and fixed to a fixed base via the connector.

[0009] Preferably, a nut is fixed on the fixing base, bolt holes are provided on the first terminal and the second terminal, the connecting piece is a bolt matched with the nut, and the bolt passes through the bolt holes on the first terminal and the second terminal and connects the nut.

[0010] Preferably, a washer is provided between the bolt and the second terminal of the high-voltage wiring harness, and the washer is sleeved on the bolt.

[0011] Preferably, the first terminal comprises a fixing plate and a wiring sleeve connected to each other, the fixing plate is provided with a first bolt hole matching with a bolt, the wiring sleeve is provided with a lead wire connecting hole, the first bolt hole and the central axis of the lead wire connecting hole are perpendicular to each other, and the stator lead wire is fixed in the lead wire connecting hole.

[0012] Preferably, a nut hole matching the shape of the nut is provided on the fixing base of the connecting seat, the nut is fixed in the nut hole, and the number of the nut holes is multiple.

[0013] Preferably, a fixing ear is provided on the connecting seat, a second bolt hole is provided on the fixing ear, a support column matched with the fixing ear is provided in the fixing groove, and a second threaded hole matched with the second bolt hole is provided on the support column.

[0014] Preferably, there are multiple fixing ears, and the fixing ears are symmetrically distributed on both sides of the connecting seat.

[0015] Preferably, there are multiple third wire passing holes, and the third wire passing holes are located on one side of the rear end cover.

[0016] Preferably, the stator is provided with a first threaded hole, and the rear end cover is connected to the stator by bolts.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] (1) In this solution, the rear end cover is fixed to one end of the stator, and the connecting seat is fixed in the fixing groove of the rear end cover. After the stator lead wire passes through the second wire hole and the first wire hole, it is located on the connecting seat and connected to the high-voltage wire harness introduced from the third wire hole. The connected two are fixed on the fixed base.

[0019] By providing a fixing groove matching the shape of the connecting seat in the rear end cover and providing the connecting seat in the fixing groove, the original radial terminal box or axial end terminal box of the motor is integrated into the rear end cover, thereby reducing the radial and axial dimensions of the motor, thereby reducing the amount of parts and materials used, reducing costs, saving occupied space, and being more conducive to the overall vehicle layout.

[0020] (2) In this scheme, the fixed base of the connection base is set at one end of the rear end cover close to the stator, and bolt holes are set on the first terminal and the second terminal so that the bolts are fixed on the fixed base after passing through the bolt holes. By combining the electrical connection point of the high-voltage wiring harness and the electrical connection point of the stator lead wire into one, and setting the connection point as close to the stator coil as possible, the cost is reduced by reducing the number of copper busbar parts for transfer.

[0021] (3) In this solution, multiple nut holes are set on the fixed base, and a certain distance is maintained between each nut hole. The corresponding nuts are fixed in the nut holes. In combination, multiple third wire holes are set on one side of the rear end cover. The cables of each phase of the three-phase high-voltage wire harness can be connected separately, which is convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the exploded structure of the connection structure provided by the utility model;

[0023] Figure 2 A structural schematic diagram of the connection structure provided by the utility model;

[0024] Figure 3 A schematic diagram of the structure of the high-voltage wiring harness provided by the utility model;

[0025] Figure 4 A schematic diagram of the structure of the connecting seat provided by the utility model;

[0026] Figure 5 A schematic diagram of the structure of the rear end cover provided by the utility model;

[0027] Figure 6 A schematic diagram of the structure of the stator provided by the utility model;

[0028] Figure 7 A schematic diagram of the structure of the first wiring terminal provided by the utility model;

[0029] In the figure: 1, high-voltage wire harness, 2, connecting base, 3, rear end cover, 4, stator, 5, first terminal, 6, second terminal, 7, first wire hole, 8, nut, 9, second bolt hole, 10, second wire hole, 11, third wire hole, 12, second threaded hole, 13, third bolt hole, 14, stator lead wire, 15, first threaded hole, 16, first bolt hole, 17, lead wire connecting hole, 18, bolt, 19, washer, 21, fixing base, 22, fixing ear, 31, fixing groove, 51, fixing plate, 52, wiring sleeve. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0034] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] Example 1

[0037] like Figure 1 , Figure 2 and Figure 5As shown, this embodiment provides a motor stator lead wire and high-voltage wire harness connection structure, which is used to connect the high-voltage wire harness 1 and the stator lead wire 14, and the stator lead wire 14 is led out from the connection end between the stator 4 and the rear end cover 3. The connection structure also includes a connection seat 2, and the connection seat 2 is provided with a first wire hole 7 and a fixed base 21 side by side, and the rear end cover 3 is provided with a second wire hole 10 and a third wire hole 11;

[0038] The end of the rear end cover 3 away from the stator 4 is provided with a fixing groove 31 that matches the connecting base 2. The connecting base 2 is located in the fixing groove 31. The high-voltage wire harness 1 passes through the third wire passing hole 11. The stator lead-out wire 14 passes through the second wire passing hole 10 and the first wire passing hole 7 in sequence and is connected to the high-voltage wire harness 1 and fixed together on the fixed base 21.

[0039] Working principle: the rear end cover 3 is fixed to one end of the stator 4, the connecting seat 2 is fixed in the fixing groove 31 of the rear end cover 3, and the stator lead wire 14 passes through the second wire hole 10 and the first wire hole 7, and is located on the connecting seat 2, connected to the high-voltage wire harness 1 introduced from the third wire hole 11, and the two connected are fixed on the fixed base 21.

[0040] In this solution, the rear end cover 3 is fixed to one end of the stator 4, and the connecting seat 2 is fixed in the fixing groove 31 of the rear end cover 3. After the stator lead wire 14 passes through the second wire hole 10 and the first wire hole 7, it is located on the connecting seat 2 and connected to the high-voltage wire harness 1 introduced from the third wire hole 11. The two connected ones are fixed on the fixed base 21.

[0041] By providing a fixing groove 31 matching the shape of the connecting seat 2 in the rear end cover 3 and providing the connecting seat 2 in the fixing groove 31, the original radial terminal box or axial end terminal box of the motor is integrated into the rear end cover, thereby reducing the radial size and axial size of the motor, thereby reducing the amount of parts and materials used, reducing costs, saving occupied space, and being more conducive to the layout of the entire vehicle.

[0042] In a preferred embodiment, one end of the stator lead wire 14 is connected to a first terminal 5, and one end of the high-voltage wire harness 1 is connected to a second terminal 6. The first terminal 5 and the second terminal 6 are connected by a connector and fixed to a fixed base 21 by the connector.

[0043] Specifically, Figure 3 and Figure 4 As shown, a nut 8 is fixed on the fixed base 21, bolt holes are provided on the first terminal 5 and the second terminal 6, and the connecting piece is a bolt 18 that matches the nut 8. The bolt 18 passes through the bolt holes on the first terminal 5 and the second terminal 6 and connects the nut 8.

[0044] like Figure 7As shown, the first terminal 5 includes a fixing plate 51 and a wiring sleeve 52 which are connected to each other. The fixing plate 51 is provided with a first bolt hole 16 which matches with the bolt 18. The wiring sleeve 52 is provided with a lead wire connecting hole 17. The central axes of the first bolt hole 16 and the lead wire connecting hole 17 are perpendicular to each other. The stator lead wire 14 is fixed in the lead wire connecting hole 17.

[0045] The fixed base of the connecting seat is arranged at one end of the rear end cover close to the stator, and bolt holes are arranged on the first terminal and the second terminal so that the bolts are fixed on the fixed base after passing through the bolt holes. The electrical connection point of the high-voltage wiring harness and the electrical connection point of the stator lead wire are combined into one, and the connection point is arranged as close to the stator coil as possible, thereby reducing the number of copper busbar parts and reducing the cost.

[0046] Furthermore, a washer 19 is provided between the bolt 18 and the second terminal 6 of the high-voltage wiring harness 1, and the washer 19 is sleeved on the bolt 18. The contact area between the bolt and the second terminal 6 connected to the high-voltage wiring harness 1 is increased, and the reliability of the connection between the high-voltage wiring harness, the stator lead wire 14 and the fixed base 21 is improved.

[0047] In a preferred embodiment, a fixing ear 22 is provided on the connecting seat 2, a second bolt hole 9 is provided on the fixing ear 22, a support column matched with the fixing ear 22 is provided in the fixing groove 31, and a second threaded hole 12 matched with the second bolt hole 9 is provided on the support column.

[0048] Furthermore, a nut hole matching the shape of the nut 8 is provided on the fixing base 21 of the connecting base 2, and the nut 8 is fixed in the nut hole, and the number of the nut holes is multiple. The number of the fixing ears 22 is multiple, and each fixing ear 22 is symmetrically distributed on both sides of the connecting base 2. The number of the third wire holes 11 is multiple, and the third wire holes 11 are located on one side of the rear end cover 3.

[0049] A plurality of nut holes are arranged on the fixed base, and a certain distance is maintained between each nut hole, and the corresponding nuts are fixed in the nut holes. A plurality of third wire holes are arranged on one side of the rear end cover, so that the cables of each phase of the three-phase high-voltage wiring harness can be connected separately, which is convenient to connect and has high reliability.

[0050] Specifically, Figure 6 As shown, the stator 4 is provided with a first threaded hole 15, the rear end cover 3 is provided with a corresponding third bolt hole 13, and the rear end cover 3 is connected to the stator 4 by bolts.

[0051] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A motor stator lead wire and high-voltage wire harness connection structure, used to connect the high-voltage wire harness (1) and the stator lead wire (14), wherein the stator lead wire (14) is led out from the connection end between the stator (4) and the rear end cover (3), characterized in that: The connection structure further comprises a connection seat (2), on which a first wire passing hole (7) and a fixing base (21) are arranged side by side, and the rear end cover (3) is provided with a second wire passing hole (10) and a third wire passing hole (11); A fixing groove (31) matching with the connecting seat (2) is provided at one end of the rear end cover (3) away from the stator (4); the connecting seat (2) is located in the fixing groove (31); the high-voltage wire harness (1) passes through the third wire-passing hole (11); the stator lead wire (14) passes through the second wire-passing hole (10) and the first wire-passing hole (7) in sequence to be connected to the high-voltage wire harness (1) and fixed together on the fixing base (21).

2. The motor stator lead wire and high voltage wire harness connection structure according to claim 1, characterized in that: One end of the stator lead wire (14) is connected to a first wiring terminal (5), one end of the high-voltage wire harness (1) is connected to a second wiring terminal (6), and the first wiring terminal (5) and the second wiring terminal (6) are connected via a connector and fixed to a fixed base (21) via the connector.

3. The motor stator lead wire and high voltage wire harness connection structure according to claim 2, characterized in that: A nut (8) is fixed on the fixing base (21); bolt holes are provided on the first connecting terminal (5) and the second connecting terminal (6); the connecting member is a bolt (18) matched with the nut (8); the bolt (18) passes through the bolt holes on the first connecting terminal (5) and the second connecting terminal (6) and connects the nut (8).

4. The motor stator lead wire and high voltage wire harness connection structure according to claim 3, characterized in that: A washer (19) is provided between the bolt (18) and the second connecting terminal (6) of the high-voltage wire harness (1), and the washer (19) is sleeved on the bolt (18).

5. The motor stator lead wire and high voltage wire harness connection structure according to claim 3, characterized in that: The first wiring terminal (5) comprises a fixing plate (51) and a wiring sleeve (52) connected to each other, the fixing plate (51) is provided with a first bolt hole (16) matched with a bolt (18), the wiring sleeve (52) is provided with a lead wire connection hole (17), the first bolt hole (16) and the central axis of the lead wire connection hole (17) are perpendicular to each other, and the stator lead wire (14) is fixed in the lead wire connection hole (17).

6. The motor stator lead wire and high voltage wire harness connection structure according to claim 3, characterized in that: A nut hole matching the shape of the nut (8) is provided on the fixed base (21) of the connecting seat (2), the nut (8) is fixed in the nut hole, and the number of the nut holes is multiple.

7. The motor stator lead wire and high voltage wire harness connection structure according to claim 1, characterized in that: The connecting seat (2) is provided with a fixing ear (22), the fixing ear (22) is provided with a second bolt hole (9), the fixing groove (31) is provided with a support column matched with the fixing ear (22), and the support column is provided with a second threaded hole (12) matched with the second bolt hole (9).

8. The motor stator lead wire and high voltage wire harness connection structure according to claim 7, characterized in that: The number of the fixing ears (22) is multiple, and each fixing ear (22) is symmetrically distributed on both sides of the connecting seat (2).

9. The motor stator lead wire and high voltage wire harness connection structure according to claim 1, characterized in that: There are a plurality of third wire passing holes (11), and each of the third wire passing holes (11) is located on one side of the rear end cover (3).

10. The motor stator lead wire and high voltage wire harness connection structure according to claim 1, characterized in that: The stator (4) is provided with a first threaded hole (15), and the rear end cover (3) is connected to the stator (4) via bolts.

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