Three-phase connection structure of motor and vehicle

Abstract

The application provides a motor three-phase connection structure and a vehicle, and belongs to the technical field of motors. The motor three-phase connection structure comprises a motor three-phase assembly, a controller copper bar and an adapter. The motor three-phase assembly is arranged on an armature and has a first wiring outgoing end. The controller copper bar has a first wiring incoming end. The adapter is detachably connected to a stator core. The adapter has a second wiring incoming end and a second wiring outgoing end. The second wiring outgoing end of the adapter is connected to the first wiring incoming end. A wiring structure is arranged between the first wiring outgoing end and the second wiring incoming end. The wiring structure comprises a wiring copper column and a wiring slot. The wiring copper column is inserted into the corresponding wiring slot, and the motor three-phase assembly and the adapter are electrically connected. The motor three-phase connection structure and the vehicle can simplify the wiring operation process and structure between the motor and the controller, and improve the wiring efficiency.

Description

Technical Field

[0001] This application belongs to the field of motor technology, and more specifically, relates to a three-phase connection structure for a motor and a vehicle. Background Technology

[0002] The electric motor is a key component for vehicle propulsion, and its three-phase connection structure directly affects the overall integration and miniaturization of the motor. In this three-phase connection structure, the three phases of the motor need to be connected to the three phases of the controller to achieve control between the controller and the motor.

[0003] In the existing technology, the three phases of the controller and the three phases of the motor are connected by an adapter. Specifically, in terms of electrical connection, the three phases of the motor are fixed to the copper busbar embedded in the terminal block by bolts, and the other end of the copper busbar of the terminal block is connected to the three phases of the controller by bolts, thereby realizing the three-phase conduction between the controller and the motor. The connection process is cumbersome and the structure is complex. Utility Model Content

[0004] The purpose of this application is to provide a three-phase connection structure for a motor and a vehicle, which aims to solve the technical problems of cumbersome wiring process, complex structure and low wiring efficiency between the motor and the controller in traditional technology.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, a three-phase connection structure for a motor is provided for connecting the armature and a controller of the motor, wherein the armature includes a stator core and a winding assembly passing through the stator core; the three-phase connection structure for the motor includes: A three-phase motor assembly is mounted on the armature and has a first wiring lead-out terminal; The controller copper busbar has a first wiring input terminal; and An adapter is detachably connected to the stator core; the adapter has a second wiring inlet and a second wiring outlet; the second wiring outlet is connected to the first wiring inlet. A wiring structure is provided between the first wiring lead-out end and the second wiring lead-in end. The wiring structure includes a wiring copper post and a wiring groove. The wiring copper post is inserted into the corresponding wiring groove and realizes the electrical connection between the three-phase motor assembly and the adapter.

[0006] Compared with the prior art, the solution shown in this application embodiment can realize the electrical connection between the three-phase motor assembly and the controller copper busbar through the adapter; between the adapter and the three-phase motor assembly, this application provides a wiring structure, which is used to realize the connection between the first wiring lead-out terminal and the second wiring lead-in terminal; Specifically, the copper terminals and the wiring slots are interlocked, which enables electrical connection between them and quick connection between the first lead-out terminal and the second lead-in terminal. Compared with the traditional method of fixing with a terminal block and bolts, this simplifies the wiring process and improves wiring efficiency. Furthermore, the structure of the copper terminals and wiring slots replaces the traditional three-phase lead-out structure, saving the process of organizing the three-phase wires and improving the overall assembly efficiency of the motor. Therefore, the quick-connect wiring structure provided in this application for the three-phase motor connection structure is simple, which simplifies the wiring operation, improves wiring efficiency, optimizes the armature manufacturing process, and is conducive to the highly integrated design of the three-phase motor connection structure.

[0007] In conjunction with the first aspect, in one possible implementation, the wiring slot is located at the first wiring lead-out end, and the wiring copper post is located at the second wiring lead-in end.

[0008] By rationally arranging the positions of the wiring copper posts and wiring slots, the wiring lead-out methods of the first wiring lead-out end and the second wiring lead-in end can be set.

[0009] In conjunction with the first aspect, in one possible implementation, the copper terminal for wiring is located at the first wiring lead-out end, and the wiring slot is located at the second wiring lead-in end.

[0010] By providing an alternative arrangement of the wiring posts and wiring channels, a new approach can be taken to the configuration of the wiring structure.

[0011] In some embodiments, the second wiring inlet is provided with a wiring copper busbar extending toward the three-phase motor assembly. The wiring copper busbar is provided with multiple sets of spring pressure plates, which are spaced apart circumferentially along the wiring copper post to form the wiring groove.

[0012] By setting up a copper busbar and extending it toward the three-phase motor assembly, the copper busbar and the copper post are positioned vertically and vertically in the axial direction of the stator core. By setting up multiple sets of spring pressure plates to form the aforementioned wiring groove around the circumference of the copper post, the copper post and the multiple sets of spring pressure plates are electrically connected, thereby ensuring the stability of the electrical connection between the three-phase motor assembly and the adapter.

[0013] In some embodiments, the copper busbar is provided with a connecting hole that extends through the axial direction of the wiring groove, and an adapter ring is installed in the connecting hole; one end of the adapter ring extends out of the connecting hole, and the extended end of the adapter ring is provided with multiple sets of spring pressure plates.

[0014] The adapter ring can be installed by providing a connection hole; the connection between the spring plate and the terminal busbar can be achieved by providing the spring plate with the extended end of the adapter ring.

[0015] In conjunction with the first aspect, in one possible implementation, the adapter includes: The main body extends circumferentially around the stator core; the main body is provided with the second wiring inlet and the second wiring outlet on the inner and outer sides of the radial direction of the stator core; The connecting part protrudes outward from the outer peripheral wall of the main body; the connecting part is detachably connected to the stator core.

[0016] The main body is used to set the second wiring inlet and the second wiring outlet to realize the electrical connection between the three-phase motor assembly and the controller copper busbar; the connecting part is used to realize the mechanical connection between the adapter and the stator core to ensure the stability of the electrical connection.

[0017] In some embodiments, the stator core is provided with a plurality of armature mounting holes spaced apart along its circumference, and each armature mounting hole corresponds to a fixing bolt; The connecting part is provided with a limiting hole corresponding to the position of the armature mounting hole. One end of the fixing bolt passes through the limiting hole and the armature mounting hole in sequence and is fixed on the motor housing to realize the detachable connection between the adapter and the stator core.

[0018] By setting limiting holes on the connecting part and aligning the positions of the limiting holes with the mounting holes, the fixing bolts can simultaneously fix the connecting part and the stator core. This allows the armature to be mounted on the motor housing while the connecting part is fixed to the stator core, thus achieving simultaneous fixing of the connecting part and the armature. This simplifies the mechanical fixing structure of the adapter, improves the connection efficiency between the adapter and the motor, and facilitates the high integration of the overall three-phase connection structure.

[0019] For example, multiple connecting portions are provided, and the multiple connecting portions are spaced apart along the extension direction of the main body; each connecting portion is provided with a set of limiting holes, and each limiting hole corresponds to an armature mounting hole.

[0020] By setting multiple connecting parts and a set of connecting holes on each connecting part to form multiple connecting holes, a multi-point connection between the adapter and the stator core can be realized, which helps to improve the connection stability and reliability of the adapter.

[0021] For example, a reinforcing rib is provided between the connecting part and the main body part.

[0022] By setting multiple reinforcing ribs, the connection strength between the connecting part and the main body can be further improved, thereby enhancing the firmness and stability of the adapter connection.

[0023] In some embodiments, the main body is provided with an elastic pressure plate extending toward the stator core, and a temperature sensor is engaged at the extended end of the elastic pressure plate.

[0024] By setting up an elastic pressure plate and extending it towards the stator core, the temperature sensor is pressed onto the armature, enabling real-time monitoring of the armature temperature.

[0025] Secondly, embodiments of this application also provide a vehicle that includes the aforementioned three-phase motor connection structure.

[0026] The vehicle provided in this application, having the aforementioned three-phase motor connection structure, possesses all the beneficial effects of such a structure. It simplifies the wiring process and structure between the motor and the controller, improves wiring efficiency, optimizes the motor manufacturing process, and facilitates increased integration of internal vehicle modules. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the three-phase connection structure and the installation structure of the motor provided in the embodiments of this application; Figure 2 A schematic diagram of the installation structure of the three-phase motor assembly provided in the embodiments of this application; Figure 3 This is an enlarged structural diagram of the motor three-phase assembly mounting structure provided in the embodiments of this application; Figure 4 Schematic diagram of the adapter provided in the embodiments of this application Figure 1 ; Figure 5 Schematic diagram of the adapter provided in the embodiments of this application Figure 2 ; Figure 6 This is a cross-sectional structural diagram of the wiring groove provided in an embodiment of this application; Figure 7 This is a schematic diagram of the installation structure of the temperature sensor provided in an embodiment of this application.

[0029] In the diagram: 1. Stator core; 11. Armature mounting hole; 12. Fixing bolt; 2. Winding assembly; 3. Three-phase motor assembly; 31. First wiring lead-out terminal; 4. Controller copper busbar; 41. First wiring inlet terminal; 5. Adapter; 51. Main body; 511. Second wiring inlet terminal; 512. Second wiring lead-out terminal; 513. Wiring copper busbar; 5131. Connecting hole; 52. Connecting part; 521. Limiting hole; 53. Adapter ring; 531. Spring pressure plate; 54. Reinforcing rib; 55. Elastic pressure plate; 551. Claw; 56. Temperature sensor; 6. Wiring structure; 61. Wiring copper post; 62. Wiring groove. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] The terms "first" and "second" 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] It should be noted that the armature is a crucial and pivotal component in an electric motor, typically housed within the motor casing. In a generator, it is the component that generates electromotive force, such as the rotor in a DC generator and the stator in an AC generator. The armature comprises the stator core 1 and the winding assembly 2. The winding assembly 2 is the circuit portion of the DC motor and also the part that generates electromotive force, produces electromagnetic torque, and performs electromechanical energy conversion. The stator core 1 is both part of the main magnetic circuit and a supporting component for the winding assembly 2, which is embedded in slots within the stator core 1. Furthermore, the three phases of the armature need to be transferred to the controller busbar 4 of the controller via an adapter 5.

[0034] In the existing technology, the three phases of the motor end are fixed to the copper busbar embedded in the terminal block by bolts. On the one hand, this can realize the electrical connection between the three phases of the motor end and the copper busbar in the terminal block. On the other hand, the bolts can also fix the wiring of the three phases of the motor end, avoiding the problem of intermittent and unstable electrical signals caused by unstable fixing at the wiring point. Therefore, when wiring, it is also necessary to screw bolts at each wiring point, which makes the overall wiring process complicated and time-consuming.

[0035] Please refer to the following: Figures 1 to 7 The following describes the three-phase motor connection structure and vehicle provided in this application. The three-phase motor connection structure is used to connect the motor armature and the controller. The armature includes a stator core 1 and a winding assembly 2 passing through the stator core 1. The three-phase motor connection structure includes a three-phase motor assembly 3, a controller busbar 4, and an adapter 5. The three-phase motor assembly 3 is mounted on the armature and has a first wiring lead-out terminal 31. The controller busbar 4 has a first wiring lead-in terminal 41. The adapter 5 is detachably connected to the stator core 1. The adapter 5 has a second wiring lead-in terminal 511 and a second wiring lead-out terminal 512. The second wiring lead-out terminal 512 of the adapter 5 is connected to the first wiring lead-in terminal 41. A wiring structure 6 is provided between the first wiring lead-out terminal 31 and the second wiring lead-in terminal 511. The wiring structure 6 includes a wiring copper post 61 and a wiring slot 62. The wiring copper post 61 is inserted into the corresponding wiring slot 62, realizing the electrical connection between the three-phase motor assembly 3 and the adapter 5.

[0036] It is important to understand that the mating connection between the copper terminal 61 and the wiring groove 62 can simultaneously achieve both mechanical and electrical connections. From a mechanical connection perspective, it enables the insertion and mating of the first lead-out end 31 and the second lead-in end 511. From an electrical connection perspective, the outer peripheral wall of the copper terminal 61 connects to the inner groove wall of the wiring groove 62, enabling the electrical connection between the first lead-out end 31 and the second lead-in end 511. In other words, the mating structure between the two replaces the traditional bolt fixing method while ensuring electrical connection. Therefore, the mating connection between the copper terminal 61 and the wiring groove 62 eliminates the need for bolt fixing, simplifies the operation process, and helps improve production efficiency and product quality.

[0037] Furthermore, after the copper terminal 61 and the wiring slot 62 are inserted together, the adapter 5 can also be detached and connected to the stator core 1. This enables the mechanical connection and fixation between the adapter 5 and the stator core 1, ensuring the stability of the adapter 5 and the stability of the insertion between the copper terminal 61 and the wiring slot 62, thereby ensuring the smooth and continuous transmission of electrical signals.

[0038] It should be noted that the first wiring lead-out terminal 31 is used to lead out the three phases of the armature through the three-phase motor assembly 3, so that when the first wiring lead-out terminal 31 is connected to the second wiring lead-in terminal 511, the electrical connection between the three phases of the armature and the three phases of the adapter 5 can be realized. The connection between the first wiring lead-in terminal 41 and the second wiring lead-out terminal 512 is used to realize the three-phase connection between the controller copper busbar 4 and the adapter 5.

[0039] In addition, it should be understood that there are three sets of the wiring copper post 61 and the wiring slot 62, and the wiring copper post 61 and the wiring slot 62 are connected in a one-to-one correspondence to meet the connection requirements between the three phases of the armature and the three phases of the adapter 5.

[0040] Furthermore, the terminal block 61 is fixed to the three-phase motor assembly 3 by welding or riveting to ensure the connection stability of the terminal block 61.

[0041] Specifically, in the above wiring arrangement structure, the transmission path of the electrical signal is as follows: armature, motor three-phase assembly 3, first wiring lead-out terminal 31, wiring structure 6, second wiring lead-in terminal 511, adapter 5, second wiring lead-out terminal 512, first wiring lead-in terminal 41, controller copper busbar 4 and controller.

[0042] It should be noted that after the copper terminal 61 extends into the aforementioned wiring groove 62, the inner peripheral wall of the wiring groove 62 abuts against the outer peripheral wall of the copper terminal 61. On the one hand, this ensures the electrical connection between the copper terminal 61 and the adapter 5 forming the wiring groove 62. On the other hand, it prevents the copper terminal 61 from coming out of the wiring groove 62, thus affecting the continuity and stability of the electrical signal transmission.

[0043] In addition, it should be understood that the electrical connection or the principle of electrical connection used in this application are all existing technologies; specifically, the transmission of electrical signals can be realized after the copper terminal 61 of the wiring is inserted into the wiring slot 62, and the transmission of electrical signals can be realized after the second wiring lead-out end 512 of the adapter 5 is connected to the first wiring lead-in end 41 of the controller copper busbar 4.

[0044] Compared with the prior art, the three-phase connection structure of the motor provided in this application can realize the electrical connection between the three-phase motor assembly 3 and the controller copper busbar 4 through the adapter 5. Between the adapter 5 and the three-phase motor assembly 3, this application provides a wiring structure 6, which is used to connect the first wiring lead-out terminal 31 and the second wiring lead-in terminal 511. Specifically, the wiring copper post 61 and the wiring slot 62 are interlocked, which on the one hand realizes the electrical connection between the wiring copper post 61 and the wiring slot 62, and on the other hand, realizes the quick connection between the first wiring lead-out terminal 31 and the second wiring lead-in terminal 511. Compared with the traditional method of fixing with terminal blocks and bolts, this simplifies the wiring steps and improves wiring efficiency. Furthermore, the structure of the wiring copper post 61 and the wiring slot 62 replaces the traditional three-phase lead-out structure, saving the process of organizing the three-phase wires and improving the overall assembly efficiency of the motor.

[0045] Therefore, the quick-connect wiring structure 6 provided in this application for the three-phase motor connection structure is simple, which simplifies the wiring operation process, improves wiring efficiency, optimizes the armature manufacturing process, facilitates the highly integrated design of the three-phase motor connection structure, provides a convenient foundation for subsequent electrical connections and overall system integration, helps improve the reliability and stability of the entire motor system, and reduces the possible failure points caused by too many adapter components.

[0046] In some possible embodiments, the wiring slot 62 is provided at the first wiring lead-out end 31, and the wiring copper post 61 is provided at the second wiring lead-in end 511.

[0047] By rationally arranging the positions of the wiring copper post 61 and the wiring groove 62, the wiring lead-out method of the first wiring lead-out terminal 31 and the second wiring lead-in terminal 511 can be set.

[0048] It should be understood that in the above wiring arrangement structure, the transmission path of electrical signals is as follows: motor three-phase assembly 3, first wiring lead-out terminal 31, wiring slot 62, wiring copper post 61, second wiring lead-in terminal 511 and adapter 5.

[0049] In this embodiment, the wiring slot 62 is located at the first wiring lead-out end 31, and the wiring copper post 61 is located at the second wiring lead-in end 511. This layout makes the electrical connection more orderly and reasonable. In actual connection process, this arrangement helps to plan the wiring route more clearly during installation and maintenance, avoids wiring chaos, facilitates operation by operators, reduces the risk of connection errors or failures caused by improper wiring layout, and improves the accuracy and operability of the connection.

[0050] It should be understood that the shape of the wiring groove 62 provided in this application is adapted to the shape of the wiring copper post 61; when the wiring copper post 61 is a cylinder, the wiring groove 62 is a cylindrical hole, which is suitable for the wiring copper post 61 to extend into.

[0051] Please see Figure 3 and Figure 4 As another way of setting up the above-mentioned wiring copper post 61 and wiring groove 62, the wiring copper post 61 is set at the first wiring lead-out end 31, and the wiring groove 62 is set at the second wiring lead-in end 511.

[0052] By providing an alternative arrangement of the relative positions of the wiring copper post 61 and the wiring groove 62, a new approach can be taken to the configuration of the wiring structure 6.

[0053] It should be understood that in the above wiring arrangement structure, the transmission path of electrical signals is as follows: motor three-phase assembly 3, first wiring lead-out terminal 31, wiring copper post 61, wiring groove 62, second wiring lead-in terminal 511 and adapter 5.

[0054] It should be noted that this embodiment provides another wiring structure layout option 6. This diverse design can be flexibly adjusted according to actual application scenarios and needs to adapt to different motor and controller design requirements, increasing the versatility and applicability of the connection structure and meeting diverse product design needs.

[0055] Please see Figure 6 In some embodiments, the second wiring inlet 511 is provided with a wiring copper busbar 513 extending toward the motor three-phase assembly 3. The wiring copper busbar 513 is provided with multiple sets of spring pressure plates 531, which are spaced apart circumferentially along the wiring copper post 61 to form a wiring groove 62.

[0056] By setting the copper busbar 513 and extending it toward the three-phase motor assembly 3, the copper busbar 513 and the copper post 61 are vertically aligned in the axial direction of the stator core 1. By setting multiple sets of spring pressure plates 531 to form the aforementioned wiring groove 62 around the circumference of the copper post 61, the copper post 61 and the multiple sets of spring pressure plates 531 are electrically connected, thereby ensuring the stability of the electrical connection between the three-phase motor assembly 3 and the adapter 5.

[0057] It is important to understand that the spring clamp 531 enhances connection stability. When the terminal copper post 61 is inserted into the terminal slot 62, the spring clamp 531 presses firmly against the outer peripheral wall of the terminal copper post 61, providing a reliable electrical connection, reducing contact resistance, and mitigating problems such as overheating and arcing caused by poor contact. This improves the reliability and stability of the electrical connection and ensures stable signal transmission and power supply between the motor and the controller.

[0058] In addition, multiple sets of spring pressure plates 531 are provided, which can be arranged at intervals along the circumference of the wiring copper post 61. Therefore, the uniformity of current transmission can be ensured by making the inner wall of multiple sets of spring pressure plates 531 contact the outer circumferential wall of the wiring copper post 61 respectively.

[0059] Since there are three sets of copper terminals 61, there are also three copper busbars 513, which are used to connect the three sets of copper terminals 61 respectively, so as to ensure the accuracy of the three-phase connection structure.

[0060] Specifically, the copper busbar 513 extends from the main body 51 toward the stator core 1, and the extended end of the copper busbar 513 has an L-shaped structure. One side of the L-shaped structure is connected to the main body 51, and the other side is provided with the aforementioned wiring groove 62.

[0061] Optionally, one end of each of the multiple sets of spring pressure plates 531 is fixed inside the connection hole 5131, and the other end extends towards the wiring copper post 61. In this case, the spring pressure plates 531 are directly fixed inside the connection hole 5131, forming the aforementioned wiring groove 62.

[0062] Please see Figure 6 In some embodiments, the copper busbar 513 is provided with a connecting hole 5131 that runs through the wiring groove 62 axially, and a transition ring 53 is installed in the connecting hole 5131; one end of the transition ring 53 extends out of the connecting hole 5131, and the extended end of the transition ring 53 is provided with multiple sets of spring pressure plates 531.

[0063] The adapter ring 53 can be installed by providing a connection hole 5131; the connection between the spring pressure plate 531 and the wiring copper busbar 513 can be achieved by providing the spring pressure plate 531 at the extended end of the adapter ring 53.

[0064] Specifically, the adapter ring 53 is fixed in the connection hole 5131 of the copper busbar 513 by an interference fit, which can prevent the adapter ring 53 from coming out.

[0065] The adapter ring 53 further optimizes the connection performance; the adapter ring 53 can not only support and position the wiring copper post 61 and the spring pressure plate 531, making the wiring structure 6 more stable, but also buffer and disperse the stress in the connection process to a certain extent, preventing the wiring structure 6 from loosening or being damaged due to external force, further improving the reliability and durability of the connection, and ensuring the stability of the three-phase connection structure of the motor in long-term use.

[0066] Optionally, the adapter ring 53 and the multiple sets of spring pressure plates 531 are an integral structure; specifically, one end of the adapter ring 53 extends out a connection hole 5131 of the wiring copper bus 513, and multiple through slots are provided at the extended end of the adapter ring 53. The multiple slots are distributed at intervals along the circumference of the adapter ring 53 to divide the extended end of the adapter ring 53 into multiple connecting plates. The end of each connecting plate near the wiring copper post 61 is bent inward and protruded to form a spring pressure plate 531 that is pressed against the wiring copper post 61.

[0067] Optionally, the adapter ring 53 and the multiple sets of spring pressure plates 531 are separate structures; specifically, one end of the adapter ring 53 extends out to the connection hole 5131 of the wiring copper busbar 513, and multiple sets of spring pressure plates 531 are welded to the extended end of the adapter ring 53. The end of the spring pressure plate 531 near the wiring copper post 61 is bent inward and protruded to press it tightly on the wiring copper post 61 to prevent the wiring copper post 61 from coming out of the wiring groove 62.

[0068] Please see Figure 4 and Figure 5 In some possible embodiments, the adapter 5 includes a main body 51 and a connecting part 52; the main body 51 extends circumferentially around the stator core 1; the main body 51 is provided with a second wire inlet end 511 and a second wire outlet end 512 on the inner and outer sides of the radial direction of the stator core 1; the connecting part 52 protrudes outward from the outer peripheral wall of the main body 51; the connecting part 52 is detachably connected to the stator core 1.

[0069] The main body 51 is used to provide the second wiring inlet 511 and the second wiring outlet 512 to realize the electrical connection between the motor three-phase assembly 3 and the controller copper busbar 4; the connection part 52 is used to realize the mechanical connection between the adapter 5 and the stator core 1 to ensure the stability of the electrical connection.

[0070] The main body 51 extends circumferentially around the stator core 1 so that the main body 51 is tightly connected to the stator core 1, ensuring a compact connection structure between the adapter 5 and the stator core 1, saving floor space, improving the integration of the overall connection structure and promoting the miniaturization of the device; in addition, the adapter 5 is tightly arranged around the stator core 1, which facilitates effective connection with the three-phase motor assembly 3.

[0071] Meanwhile, the detachable connection between the connecting part 52 and the stator core 1 facilitates the installation, disassembly, and maintenance of the adapter 5. In actual production activities, such as the production, repair, or replacement of parts of the motor, the adapter 5 can be easily disassembled for operation without a complicated disassembly process, thus improving maintenance efficiency and reducing maintenance costs.

[0072] Specifically, the adapter 5 can be connected to the stator core 1 by bolt fixing; or, the adapter 5 can be detachably connected to the stator core 1 by snap-fit, plug-in or fastening.

[0073] Optionally, the connecting part 52 is provided with a mounting through hole, and the connecting part 52 is fixed to the stator core 1 by a connecting bolt; specifically, one end of the connecting bolt passes through the mounting through hole and is screwed into the corresponding stator core 1 to realize the detachable connection between the adapter 5 and the stator core 1.

[0074] Please see Figure 1 , Figure 2 and Figure 5 In some embodiments, the stator core 1 is provided with a plurality of armature mounting holes 11 spaced apart along its circumference, and each armature mounting hole 11 corresponds to a fixing bolt 12; the connecting part 52 is provided with a limiting hole 521 corresponding to the position of the armature mounting hole 11, and one end of the fixing bolt 12 passes through the limiting hole 521 and the armature mounting hole 11 in sequence and is fixed on the motor housing to realize the detachable connection between the adapter 5 and the stator core 1.

[0075] By providing a limiting hole 521 on the connecting part 52 and aligning the limiting hole 521 with the mounting hole, the fixing bolt 12 can simultaneously fix the connecting part 52 and the stator core 1. This allows the connecting part 52 to be fixed to the stator core 1 while the stator core 1 is mounted on the motor housing using the fixing bolt 12. This simplifies the mechanical fixing structure of the adapter 5, improves the connection efficiency between the adapter 5 and the motor, and facilitates the high integration of the overall three-phase connection structure.

[0076] The connection between the fixing bolt 12 and the limiting hole 521 and the connecting hole 5131 ensures the stability and reliability of the connection between the adapter 5 and the stator core 1. Through the cooperation of the limiting hole 521 and the fixing bolt 12, the installation position of the adapter 5 can be precisely controlled, ensuring accurate electrical connections between the adapter 5, the three-phase motor assembly 3, and the controller busbar 4. Simultaneously, the detachable connection facilitates component replacement or repair when needed, improving product maintainability and service life, and reducing the risk of failure due to unstable connections.

[0077] In conventional technology, the fixing bolt 12 is directly passed through the armature mounting hole 11 and then fixed to the motor housing. In this application, a limiting hole 521 is provided that is opposite to the position of the armature mounting hole 11. Therefore, after the fixing bolt 12 is limited in the corresponding limiting hole 521, it passes through the armature mounting hole 11 and is then fixed in the motor housing. This can achieve the simultaneous fixing of the stator core 1 and the adapter 5, saving the operation steps of fixing the adapter 5 separately, simplifying the connection process of the adapter 5, and improving the assembly efficiency of the three-phase connection structure.

[0078] For example, the limiting hole 521 is a through hole, and the nut of the fixing bolt 12 is limited in the corresponding limiting hole 521 so that the nut of the fixing bolt 12 presses the connecting part 52 onto the stator core 1.

[0079] In some embodiments, multiple connecting portions 52 are provided, and the multiple connecting portions 52 are spaced apart along the extension direction of the main body portion 51; each connecting portion 52 is provided with a set of limiting holes 521, and each limiting hole 521 corresponds to an armature mounting hole 11.

[0080] By setting multiple connecting parts 52 and setting a set of limiting holes 521 on each connecting part 52 to form multiple limiting holes 521, a multi-point connection between the adapter 5 and the stator core 1 can be realized, which is beneficial to improving the connection stability and reliability of the adapter 5.

[0081] Optionally, there are two connecting parts 52, which are distributed at both ends of the main body 51 in the extension direction. Each connecting part 52 is provided with a limiting hole 521, and the position of each limiting hole 521 corresponds to that of an armature mounting hole 11 in the axial direction of the stator core 1.

[0082] Specifically, the shape of each connecting part 52 can be selectively set according to actual needs; optionally, for connecting parts 52 with larger volume and shape, weight reduction holes can be provided on the corresponding connecting parts 52 to reduce the weight of the connecting parts 52.

[0083] Please see Figure 5 For example, a reinforcing rib 54 is provided between the connecting part 52 and the main body part 51.

[0084] By setting multiple reinforcing ribs 54, it is beneficial to further improve the connection strength between the connecting part 52 and the main body part 51, thereby enhancing the firmness and stability of the connection of the adapter 5.

[0085] The addition of reinforcing rib 54 enhances the structural strength of the connecting part 52 of the adapter 5, enabling it to better withstand external forces such as vibration and impact that may occur during installation and use. This increased structural strength helps maintain the stability of the connection between the adapter 5 and the stator core 1, preventing loosening of the connection or damage to the adapter 5 due to external forces. This improves the reliability and durability of the entire three-phase motor connection structure, ensuring the normal operation of the motor system under various working conditions.

[0086] Preferably, the reinforcing ribs 54 on each connecting part 52 are divided into two groups and are symmetrically distributed on both sides of the connecting part 52 along the radial direction of the limiting hole 521, and are all fixed to the main body part 51.

[0087] For example, the connecting part 52 is provided with a plurality of reinforcing ribs 54 that are respectively connected to the main body part 51. Optionally, the plurality of reinforcing ribs 54 are arranged at intervals in the upper and lower parts; or the plurality of reinforcing ribs 54 are arranged at intervals along the extension direction of the main body part 51.

[0088] Specifically, the spacing of the reinforcing rib 54 can be reasonably set according to actual needs.

[0089] Please see Figure 7 In some embodiments, the main body 51 is provided with an elastic pressure plate 55 extending toward the stator core 1, and a temperature sensor 56 is snapped onto the extended end of the elastic pressure plate 55.

[0090] By setting an elastic pressure plate 55 and extending the elastic pressure plate 55 toward the stator core 1, the temperature sensor 56 is pressed onto the armature, thereby enabling the temperature sensor 56 to monitor the armature temperature in real time.

[0091] The design of the elastic pressure plate 55 facilitates the installation of the temperature sensor 56. Furthermore, the elasticity of the pressure plate 55 allows the temperature sensor 56 to be securely fastened to the adapter 5, ensuring good contact between the temperature sensor 56 and the armature for accurate temperature measurement. It should be noted that the temperature sensing end of the temperature sensor 56 faces the outer peripheral wall of the stator core 1.

[0092] Compared with traditional binding methods, the installation method provided in this application is more stable and reliable, reducing the problem of temperature sensor 56 becoming loose or having poor contact due to insecure binding, improving the accuracy and reliability of temperature measurement, and helping to monitor and control the motor's operating status more accurately.

[0093] Specifically, two sets of claws 551 are provided at the extended end of the elastic pressure plate 55. The two sets of claws 551 are symmetrically distributed on both radial sides of the temperature sensor 56. One end of each set of claws 551 is fixed to the elastic pressure plate 55, and the other end is bent and extended towards the other set of claws 551. The two sets of claws 551 form a slot suitable for the temperature sensor 56 to be inserted. A clearance groove suitable for the temperature sensor 56 to be inserted is reserved at the bent and extended ends of the two sets of claws 551.

[0094] Optionally, each set of jaws 551 consists of two jaws, which are spaced apart along the axial direction of the temperature sensor 56.

[0095] It should be understood that the adapter 5 provided in this application is an injection-molded one-piece adapter 5, which has a wiring copper busbar 513 and an elastic pressure plate 55 injected into it.

[0096] Based on the same inventive concept, this application also provides a vehicle that includes the above-described three-phase motor connection structure.

[0097] The vehicle provided in this application, having the aforementioned three-phase motor connection structure, possesses all the beneficial effects of such a structure. It simplifies the wiring process and structure between the motor and the controller, improves wiring efficiency, optimizes the motor manufacturing process, and facilitates increased integration of internal vehicle modules.

[0098] The simplification and integration of the three-phase connection structure of the motor helps to improve the overall performance of the vehicle motor system, improve the reliability of electrical connections, reduce the risk of failure, and improve the signal transmission efficiency between the motor and the controller. This further enhances the vehicle's comprehensive performance indicators such as power performance, safety, and stability, making the vehicle more competitive in the market.

[0099] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A three-phase connection structure for a motor, used to connect the armature and controller of the motor, wherein the armature includes a stator core (1) and a winding assembly (2) passing through the stator core (1); characterized in that, The three-phase connection structure of the motor includes: A three-phase motor assembly (3) is mounted on the armature and has a first wiring lead-out terminal (31); The controller copper busbar (4) has a first wiring input terminal (41); and The adapter (5) is detachably connected to the stator core (1); the adapter (5) has a second wiring inlet (511) and a second wiring outlet (512); the second wiring outlet (512) is connected to the first wiring inlet (41); A wiring structure (6) is provided between the first wiring lead-out end (31) and the second wiring lead-in end (511). The wiring structure (6) includes a wiring copper post (61) and a wiring groove (62). The wiring copper post (61) is inserted into the corresponding wiring groove (62) and realizes the electrical connection between the motor three-phase assembly (3) and the adapter (5).

2. The three-phase connection structure of the motor as described in claim 1, characterized in that, The wiring groove (62) is located at the first wiring lead-out end (31), and the wiring copper post (61) is located at the second wiring lead-in end (511).

3. The three-phase connection structure of the motor as described in claim 1, characterized in that, The copper terminal block (61) is located at the first lead-out terminal (31), and the wiring groove (62) is located at the second lead-in terminal (511).

4. The three-phase connection structure of the motor as described in claim 3, characterized in that, The second wiring inlet (511) is provided with a wiring copper busbar (513) extending in the direction of the three-phase motor assembly (3). The wiring copper busbar (513) is provided with multiple sets of spring pressure plates (531). The multiple sets of spring pressure plates (531) are arranged circumferentially along the wiring copper post (61) to form the wiring groove (62).

5. The three-phase connection structure of the motor as described in claim 4, characterized in that, The copper busbar (513) is provided with a connecting hole (5131) that runs through the axial direction of the wiring groove (62). A transition ring (53) is installed in the connecting hole (5131). One end of the transition ring (53) extends out of the connecting hole (5131), and the extended end of the transition ring (53) is provided with multiple sets of spring pressure plates (531).

6. The three-phase connection structure of the motor as described in claim 1, characterized in that, The adapter (5) includes: The main body (51) extends circumferentially around the stator core (1); the main body (51) is provided with the second wiring inlet end (511) and the second wiring outlet end (512) on the inner and outer sides of the stator core (1) along the radial direction. The connecting part (52) protrudes outward from the outer peripheral wall of the main body (51); the connecting part (52) is detachably connected to the stator core (1).

7. The three-phase connection structure of the motor as described in claim 6, characterized in that, The stator core (1) is provided with a plurality of armature mounting holes (11) spaced apart along its circumference, and each armature mounting hole (11) corresponds to a fixing bolt (12); The connecting part (52) is provided with a limiting hole (521) corresponding to the position of the armature mounting hole (11). One end of the fixing bolt (12) passes through the limiting hole (521) and the armature mounting hole (11) in sequence and is fixed on the motor housing to realize the detachable connection between the adapter (5) and the stator core (1).

8. The three-phase connection structure of the motor as described in claim 7, characterized in that, A reinforcing rib (54) is provided between the connecting part (52) and the main body part (51).

9. The three-phase connection structure of the motor as described in any one of claims 6-8, characterized in that, The main body (51) is provided with an elastic pressure plate (55) extending toward the stator core (1), and a temperature sensor (56) is snapped onto the extended end of the elastic pressure plate (55).

10. A vehicle, characterized in that, Includes the three-phase motor connection structure as described in any one of claims 1-9.

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