Motor end cover, motor and vehicle

Abstract

The utility model provides a motor end cover, a motor and a vehicle. The motor end cover is applied to a motor, the motor end cover comprises an end cover body and at least one terminal, the terminal is of an integrated structure and is assembled and connected with the end cover body, each terminal comprises a connecting part and a plurality of connecting terminals, the plurality of connecting terminals of the terminal are respectively connected to the connecting part of the terminal, the connecting part is located in the end cover body, and the connecting part is located in the end cover body. And at least parts of the plurality of connecting terminals are positioned outside the end cover body. The motor comprises the motor end cover. The vehicle comprises the motor. According to the motor end cover, the at least one terminal is of the integrated structure, and the multiple connecting terminals are connected through the connecting parts to be integrally formed, so that the multiple connecting terminals and the end cover body are assembled and connected conveniently, automatic production of the motor end cover can be achieved, and production convenience and production efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a motor end cover, a motor, and a vehicle. Background Art

[0002] With the development of science and technology, the demand and application of motors are gradually increasing. This has led to the need to produce more motors to meet the demand. Motor end covers are essential components of motors, and multiple components and terminals in the motor are assembled and connected to the motor end covers. Therefore, improving the production efficiency of motor end covers can improve the production efficiency of motors. However, in the production process of motor end covers in the existing technology, not only are the required parts structures complex, but the production process is also cumbersome, making it impossible to achieve fully automated production, reducing production convenience and production efficiency. Utility Model Content

[0003] The embodiments of the present application provide a motor end cover, a motor, and a vehicle, which can solve at least part of the above-mentioned technical problems.

[0004] In a first aspect, the present application provides a motor end cover, applied to a motor, comprising:

[0005] End cap body;

[0006] At least one terminal, the terminal is an integrated structure, assembled and connected with the end cover body, each terminal includes a connecting portion and a plurality of connecting terminals, the plurality of connecting terminals of the terminal are respectively connected to the connecting portion of the terminal, the connecting portion is located in the end cover body, and at least part of the plurality of connecting terminals is located outside the end cover body.

[0007] In a second aspect, the present application provides a motor, comprising:

[0008] The motor end cover mentioned above.

[0009] In a third aspect, the present application provides a vehicle, comprising:

[0010] The motor mentioned above.

[0011] The present application provides a motor end cover, a motor and a vehicle. The motor end cover is applied to a motor, and the motor end cover includes an end cover body and at least one terminal. The terminal is an integral structure and is assembled and connected with the end cover body. Each terminal includes a connecting portion and a plurality of connecting terminals. The plurality of connecting terminals of the terminal are respectively connected to the connecting portion of the terminal. The connecting portion is located in the end cover body, and at least part of the plurality of connecting terminals is located outside the end cover body. The motor includes the above-mentioned motor end cover. The vehicle includes the above-mentioned motor. At least one terminal of the motor end cover of the present application is each an integral structure, and the plurality of connecting terminals are connected by the connecting portion to form an integrated structure, so as to facilitate the assembly and connection of the plurality of connecting terminals with the end cover body, and can realize the automated production of motor end covers, thereby improving the convenience and efficiency of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] Figure 1 This is a schematic block diagram of a vehicle in one embodiment of the present application.

[0014] Figure 2 Schematic diagram of a motor in one embodiment of the present application.

[0015] Figure 3 This is a schematic block diagram of a motor end cover in one embodiment of the present application.

[0016] Figure 4 Schematic diagram of the structure of the motor end cover in one embodiment of the present application.

[0017] Figure 5 This is a schematic structural diagram of multiple terminals of a motor end cover in one embodiment of the present application.

[0018] Figure 6 for Figure 5 Schematic diagram of the decomposition.

[0019] Figure 7 This is a schematic structural diagram of a terminal in another embodiment of the present application.

[0020] Figure 8 This is a schematic structural diagram of a terminal in another embodiment of the present application.

[0021] Figure 9 Schematic diagram of the structure of the motor end cover assembly component in one embodiment of the present application.

[0022] Figure 10 for Figure 9 Exploded diagram.

[0023] Figure 11 This is a circuit diagram of a double-sided circuit board in one embodiment of the present application.

[0024] Figure 12 This is a circuit diagram of a single-sided circuit board in one embodiment of the present application.

[0025] Figure Number:

[0026] Vehicles - 100;

[0027] Motor - 200;

[0028] Motor end cover-300;

[0029] End cap body - 400; circuit board groove - 41; inductor slot - 42; opening - 421; rib position - 422; carbon brush holder - 43; inductor foot guide groove - 431; slide rail - 44; spring bolt fixing piece - 45; grounding breakout area - 46; temperature control switch slot - 47;

[0030] Terminal 500; connecting portion 51; connecting terminal 52; first signal terminal 531; second signal terminal 532; first signal connecting portion 533; second signal connecting portion 534; first signal interrupting portion 535; second signal interrupting portion 536; first terminal 500a; first connecting portion 51a; first power terminal 541; first soldering terminal 551; second terminal 500b; second connecting portion 51b; second power terminal 542; second soldering terminal 552; ground terminal 56; external connection end 57; ground interrupting portion 58; ground connecting portion 561;

[0031] Inductor-6; first inductor-61 (first inductor-L1); third pin-611; fourth pin-612; second inductor-62 (first inductor-L2); fifth pin-621; sixth pin-622;

[0032] Carbon brush-7; Carbon brush line-71; First carbon brush-72; Second carbon brush-73;

[0033] Circuit board 8; circuit element 81; Hall sensor 811; mounting plate 82; first surface 821; power hole 83; ground hole 84; signal hole 85; first capacitor C1; second capacitor C2; third capacitor C3; varistor V; fourth capacitor C4; resistor R;

[0034] Temperature control switch-9; first pin-91; second pin-92;

[0035] Slingshot-10; First slingshot-101; Second slingshot-102. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings. The term "connection" in this application, unless otherwise specified, mainly refers to a physical structural connection. Where specified, it may also include meanings such as direct connection or indirect connection. The terms "first" and "second" in the specification and claims of this application and the drawings are used to distinguish different objects, not to describe a specific order. In addition, the term "include" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] See also Figure 1 , Figure 1 FIG2 is a schematic block diagram of a vehicle 100 in an embodiment of the present application. The vehicle 100 may be, but is not limited to, a car, a golf cart, an engineering vehicle, or any other vehicle that requires a motor. The vehicle 100 includes a motor 200 .

[0039] Therefore, after the motor 200 is installed on the vehicle 100 , the motor 200 provides power to the vehicle 100 , so that the vehicle 100 moves.

[0040] See also Figure 2 , Figure 2 This is a schematic block diagram of a motor 200 in an embodiment of the present application. The motor 200 may be, but is not limited to, a brushed motor, a brushless motor, or an AC motor. The motor 200 may be applied to Figure 1 The motor 200 includes a motor end cover 300 .

[0041] Therefore, after the motor end cover 300 is installed, the motor 200 can be connected to an external power source and rotated to achieve the predetermined function of the motor 200.

[0042] See also Figure 3 and Figure 4 , Figure 3This is a schematic block diagram of a motor end cover 300 in one embodiment of the present application. Figure 4 Schematic diagram of the structure of a motor end cover 300 in one embodiment of the present application. The motor end cover 300 includes an end cover body 400 and at least one terminal 500. Each terminal 500 is an integrated structure and is assembled and connected to the end cover body 400.

[0043] See also Figure 5 and Figure 6 , Figure 5 Schematic diagram of the structure of multiple terminals 500 of the motor end cover 300 in one embodiment of the present application. Figure 6 for Figure 5 Schematic diagram of an exploded view. In some embodiments, the motor end cover 300 includes two terminals 500, and the two terminals 500 have different shapes. However, the two terminals 500 have in common that each terminal 500 includes a connecting portion 51 and a plurality of connecting terminals 52, and the plurality of connecting terminals 52 are all connected to the connecting portion 51. The connecting portion 51 serves to connect the plurality of connecting terminals 52, making the plurality of connecting terminals 52 an integrated structure and capable of transmitting power and signals between the plurality of connecting terminals 52. The connecting portion 51 is located within the end cover body 400, and at least a portion of the plurality of connecting terminals 52 is located outside the end cover body 400. It is understood that in other embodiments, the motor end cover 300 is not limited to including two terminals 500, but may also include one terminal or multiple terminals 500. Moreover, the shapes and structures of the plurality of terminals 500 may be the same, or at least partially different.

[0044] Thus, at least one terminal 500 of the motor end cover 300 is each an integrated structure, so as to facilitate assembly and connection with the end cover body 400, and to realize automated production of the motor end cover 300, thereby improving production convenience and efficiency; and at least a portion of the connecting terminal 52 is located outside the end cover body 400, and is connected through the connecting portion 51 inside the end cover body 400, so as to serve as a transmission path so that the motor 200 can realize a predetermined function through the motor end cover 300.

[0045] In some embodiments, the terminal 500 is a conductive terminal. Before being assembled and connected with the end cover body 400, it can be formed into an integrated structure through a casting process, a stamping process, a welding process, a 3D printing technology, or the like. The end cover body 400 is molded on the outside of the terminal 500 through an injection molding process to complete the assembly connection between the end cover body 400 and the terminal 500.

[0046] As mentioned above, specifically, the multiple connecting terminals 52 extend from one end face of the end cover body 400, and are used to receive current or signals from the outside, and are also used to transmit current or signals to the outside. The connecting portion 51 connects the multiple connecting terminals 52 into an integral terminal 500, and the terminal 500 can be regarded as a transmission path to transmit current or signals.

[0047] Please also refer to Figure 7 and Figure 8 , Figure 7 This is a schematic structural diagram of a terminal 500 in another embodiment of the present application. Figure 8 FIG2 is a schematic diagram of the structure of a terminal 500 in another embodiment of the present application. It is understood that, when the functions of the plurality of connecting terminals 52 of the terminal 500 are predetermined, the structural shape of the connecting portion 51 connected to the plurality of connecting terminals 52 can be set according to actual conditions to achieve an integrated connection, and this is not limited here.

[0048] For some embodiments, please refer to Figure 5 and Figure 6 The multiple connection terminals 52 of each terminal 500 include at least one of a power terminal and a soldering terminal.

[0049] Thus, the terminal 500 can realize a predetermined function through the plurality of connection terminals 52 , thereby improving the functionality of the motor end cover 300 .

[0050] For some embodiments, please refer to Figure 5 and Figure 6For the convenience of description, the two terminals 500 included in the motor end cover 300 are named as the first terminal 500a and the second terminal 500b respectively. The first terminal 500a is provided with at least one of a power terminal and a touch welding terminal, and the second terminal 500b is also provided with at least one of a power terminal and a touch welding terminal. The connecting portion included in the first terminal 500a is named as the first connecting portion 51a, and the power terminal included in the first terminal 500a is named as the first power terminal 541. Therefore, the multiple first power terminals 541 are connected in an integrated manner through the first connecting portion 51a. The connecting portion included in the second terminal 500b is named as the second connecting portion 51b, and the power terminal included in the second terminal 500b is named as the second power terminal 542. Therefore, the multiple second power terminals 542 are connected in an integrated manner through the second connecting portion 51b. One of the first power terminals 541 is connected to the positive pole of the external power supply, and one of the second power terminals 542 is connected to the negative pole of the external power supply, or one of the first power terminals 541 is connected to the negative pole of the external power supply, and one of the second power terminals 542 is connected to the positive pole of the external power supply, and different current transmission directions are set, and current is transmitted through the connecting portion 51, and the remaining first power terminals 541 and the remaining second power terminals 542 are used to transmit current to corresponding components to power them.

[0051] In some embodiments, such as Figure 5 and Figure 6 As shown, the first terminal 500a is provided with a soldering terminal, which is designated as a first soldering terminal 551. The first soldering terminal 551 is connected to the first connecting portion 51a and is connected to the first power terminal 541 via the first connecting portion 51a. The second terminal 500b is also provided with a soldering terminal, which is designated as a second soldering terminal 552. The second soldering terminal 552 is connected to the second connecting portion 51b and is connected to the second power terminal 542 via the second connecting portion 51b. The first soldering terminal 551 and the second soldering terminal 552 are used to connect some of the multiple components and transmit current to the loop formed by the connection of the some components, thereby establishing soldering connections between the some components and between the some components and the first soldering terminal 551 and the second soldering terminal 552.

[0052] Thus, each component can be connected by soldering through the current transmitted by the first soldering terminal 551 and the second soldering terminal 552, so that the corresponding components can be connected by soldering through the first soldering terminal 551 and the second soldering terminal 552 to form a circuit, thereby stabilizing the connection between the terminal 500 and the corresponding component, improving the stability of the assembly of the motor end cover 300, and improving the working stability of the motor 200, without the need to solder the components before installing them on the end cover body 400, so that the motor end cover 300 can be fully automatically assembled, thereby improving production efficiency and assembly convenience.

[0053] It is understandable that the positions of the first touch-welding terminal 551 and the second touch-welding terminal 552 can be set as needed, as long as the first touch-welding terminal 551 and the second touch-welding terminal 552 are respectively connected to at least one element in the motor 200 to form a circuit, which is not limited here.

[0054] In some embodiments, the terminal 500 further includes a ground terminal 56 , and the ground terminal 56 is not connected to the connecting portion 51 .

[0055] Thus, the grounding terminal 56 is not connected to the first connecting portion 51a and the second connecting portion 51b to be disconnected from the multiple connecting terminals 52, thereby avoiding the grounding terminal 56 and the multiple connecting terminals 52 from being connected and short-circuited, so that the grounding terminal 56 is effectively grounded.

[0056] In some embodiments, before the terminal 500 is assembled and connected to the end cap body 400, the grounding terminal 56 is connected to the connecting portion 51 and is disconnected from the connecting portion 51 during the assembly process. Specifically, before the terminal 500 is assembled to the end cap body 400, the grounding terminal 56 is connected to the first connecting portion 51a and is disconnected from the first connecting portion 51a during the assembly process. Alternatively, the grounding terminal 56 is connected to the second connecting portion 51b and is disconnected from the second connecting portion 51b during the assembly process.

[0057] Thus, the grounding terminal 56 is connected to the multiple connecting terminals 52 before being assembled and connected with the end cover body 400, which facilitates the assembly connection between the grounding terminal 56 and the end cover body 400 and improves the installation efficiency. In addition, the grounding terminal 56 is disconnected from the first connecting part 51a and / or the second connecting part 51b during the assembly process, which can avoid the grounding terminal 56 and the multiple connecting terminals 52 from being connected and short-circuited, so that the grounding terminal 56 is effectively grounded.

[0058] In some embodiments, such as Figure 4 and Figure 5 As shown, before the terminal 500 is assembled with the end cover body 400, the grounding terminal 56 is connected to the second connecting portion 51b and is disconnected from the second connecting portion 51b during the assembly process. In some embodiments, the end cover body 400 is provided with a grounding break area 46, and the terminal 500 further includes a grounding connection portion 561. The second connecting portion 51b and the grounding terminal 56 are connected via the grounding connection portion 561. A grounding break portion 58 is provided between the second connecting portion 51b and the grounding connection portion 561. The grounding break area 46 is provided corresponding to the grounding break portion 58, so that during the assembly process of the terminal 500 and the end cover body 400, the grounding terminal 56 and the first connecting portion 51a are disconnected by a breaking process at the grounding break area 46 and the grounding break portion 58, so that the grounding terminal 56 is effectively grounded.

[0059] In some embodiments, such as Figure 4 and Figure 5 As shown, the terminal 500 also includes an external connection end 57, one end of the external connection end 57 is connected to the second connection part 51b, and the other end of the external connection end 57 is connected to the grounding terminal 56 through the grounding connection part 561. During the assembly of the end cover body 400 and the terminal 500, the external connection end 57 is disconnected from the second connection part 51b by a punching process and is still connected to the grounding terminal 56 through the grounding connection part 561, wherein the external connection end 57 is used to contact the housing of the motor 200 to discharge static electricity.

[0060] In some embodiments, such as Figure 5 and Figure 6 As shown, the terminal 500 further includes a signal terminal, and the signal terminal is not connected to the connecting portion 51 .

[0061] Therefore, the signal terminal is not connected to the first connection portion 51 a and the second connection portion 51 b , and is disconnected from the plurality of connection terminals 52 , so that the signal terminal can effectively transmit signals.

[0062] In some embodiments, such as Figure 5 and Figure 6As shown, the first terminal 500a includes a signal terminal, which is designated as a first signal terminal 531. The first signal terminal 531 is not connected to the first connecting portion 51a, that is, the first signal terminal 531 is not connected to the first power terminal 541. The second terminal 500b also includes a signal terminal, which is designated as a second signal terminal 532. The second signal terminal 532 is not connected to the second connecting portion 51b, that is, the second signal terminal 532 is not connected to the second power terminal 542. The first signal terminal 531 and the second signal terminal 532 are used to connect to some of the multiple components and transmit signals to these components. The first terminal 500a also includes a first signal connecting portion 533, through which the multiple first signal terminals 531 are connected. The second terminal 500b also includes a second signal connecting portion 534, through which the multiple second signal terminals 532 are connected.

[0063] In some embodiments, before the terminal 500 is assembled and connected to the end cover body 400 , the signal terminal is connected to the connecting portion 51 and is disconnected from the connecting portion 51 during the assembly process.

[0064] Thus, the signal terminal is connected to the multiple connection terminals 52 before being assembled and connected with the end cover body 400, which facilitates the assembly connection between the signal terminal and the end cover body 400 and improves the installation efficiency. In addition, the signal terminal is disconnected from the first connection part 51a and the second connection part 51b during the assembly process, so that the signal terminal can effectively transmit signals.

[0065] It is understandable that in Figure 5 and Figure 6 In the state where the first signal terminal 531 is not connected to the first connection portion 51a and the second signal terminal 532 is not connected to the second connection portion 51b, the state may occur when the terminal 500 is connected to the end cover body 400 (e.g. Figure 4 ) before assembly and connection, or it can occur after the terminal 500 and the end cover body 400 are assembled and connected. The node of this state can be set as needed and is not limited here.

[0066] For some examples, see Figure 7 , Figure 7 The terminal 500 in the embodiment is similar in structure to the aforementioned terminal 500, except that: Figure 7In the embodiment, the first signal terminal 531 is connected to the first connection portion 51a via the first signal connection portion 533 before being assembled and connected to the end cap body 400, and the second signal terminal 532 is connected to the second connection portion 51b via the second signal connection portion 534 before being assembled and connected to the end cap body 400. A first signal breaking portion 535 is provided between the first signal terminal 531 and the first connection portion 51a, and a second signal breaking portion 536 is provided between the second signal terminal 532 and the second connection portion 51b. The end cap body 400 is provided with a first signal breaking area and a second signal breaking area at positions corresponding to the first signal breaking portion 535 and the second signal breaking portion 536, respectively. During assembly, the connection between the first signal terminal 531 and the first connection portion 51a is disconnected at the first signal breaking area and the first signal breaking portion 535, and the connection between the second signal terminal 532 and the second connection portion 51b is disconnected at the second signal breaking portion 536 and the second signal breaking area.

[0067] Figure 7 The difference between the terminal 500 in FIG. 5 and the aforementioned terminal 500 is that, Figure 7 In the figure, the grounding terminal 56 is not connected to the second connecting portion 51b, but is connected to the first signal connecting portion 533. During the assembly process with the end cover body 400, the connection between the grounding terminal 56 and the first signal connecting portion 533 is disconnected at the grounding breaking portion 58 through a punching process, that is, the connection between the external end portion 57 and the first signal connecting portion 533 is disconnected.

[0068] For some examples, see Figure 8 , Figure 8 Terminal 500 and Figure 7 The terminal 500 in the structure is similar, the difference is that, Figure 8 In the process of assembling with the end cover body 400, the ground terminal 56 and the second signal connection part 534 are connected. During the assembly process with the end cover body 400, the connection between the ground terminal 56 and the second signal connection part 534 is disconnected at the grounding breaking part 58 through a punching process, that is, the connection between the external end 57 and the second signal connection part 534 is disconnected.

[0069] Please refer to Figure 9 and Figure 10 , Figure 9 Schematic diagram of the structure of the motor end cover 300 assembly components in one embodiment of the present application. Figure 10 for Figure 9 In some embodiments, as Figure 4 and Figure 9As shown, the end cover body 400 includes a plurality of inductor slots 42, the number of the plurality of inductor slots 42 is an integer multiple of 2, and the plurality of inductor slots 42 are symmetrically arranged on the end cover body 400. The motor 200 includes a plurality of inductors 6, and the plurality of inductor slots 42 are respectively used to install the plurality of inductors 6.

[0070] Therefore, the inductor slot 42 is designed symmetrically so that installation can be achieved using only one inductor 6, which can reduce the investment in production molds, lower production costs, and is more conducive to automatic line production, facilitating fully automated installation and production, and is also more conducive to suppressing the EMC (Electro Magnetic Compatibility) of the motor 200.

[0071] In some embodiments, such as Figure 4 and Figure 9 As shown, an opening 421 is provided on each of the inductor slots 42 , and a plurality of ribs 422 are provided in each of the inductor slots 42 . The plurality of ribs 422 are respectively arranged on the inner wall of the inductor slot 42 at intervals along the circumference of the inductor slot 42 to fasten the inductor 6 in each of the inductor slots 42 .

[0072] Therefore, the opening 421 can facilitate the extension of the pins of the inductor 6 for connecting to other components, and the ribs 422 can enable the inductor 6 to be stably installed in the inductor slot 42 through interference fitting, thereby improving the stability of automatic assembly.

[0073] It is understandable that the size of the opening 421 can be set as needed, as long as the pins of the inductor 6 can be extended and the inductor 6 is stably installed in the inductor slot 42 , and is not limited here.

[0074] In some embodiments, such as Figure 4 and Figure 9 As shown, the end cap body 400 further includes a temperature-controlled switch slot 47, which is disposed adjacent to one of the plurality of inductor slots 42. The motor 200 includes a temperature-controlled switch 9. The temperature-controlled switch slot 47 is used to mount the temperature-controlled switch 9, such that one pin of the inductor 6 is connected to one pin of the temperature-controlled switch 9. Furthermore, the first soldering terminal 551 is located in the temperature-controlled switch slot 47, facilitating connection of the first soldering terminal 551 to the other pin of the temperature-controlled switch 9. This allows the temperature-controlled switch 9 to be soldered to the first soldering terminal 551, thereby receiving current transmitted by the soldering terminal and achieving a soldering connection between the pin of the temperature-controlled switch 9 and the pin of the inductor 6.

[0075] In some embodiments, such as Figure 4 and Figure 9As shown, the motor 200 is a brushed motor, and the end cover body 400 further includes a plurality of carbon brush cartridges 43. The number of the plurality of carbon brush cartridges 43 is an integer multiple of 2, and the plurality of carbon brush cartridges 43 are symmetrically arranged on the end cover body 400. The motor 200 further includes a plurality of carbon brushes 7, and the plurality of carbon brush cartridges 43 are respectively used to mount the plurality of carbon brushes 7.

[0076] Therefore, the carbon brush cylinder 43 is designed symmetrically so that it can be installed using only one carbon brush 7, which can reduce the investment in production molds, lower production costs, and is more conducive to automatic line production, facilitating fully automated installation and production, and is also more conducive to suppressing the EMC (Electro Magnetic Compatibility) of the motor 200.

[0077] In some embodiments, such as Figure 4 and Figure 9 As shown, each of the carbon brush cylinders 43 is provided with an inductor foot guide groove 431 , and the inductor foot guide groove 431 is used to place the pins of the inductor 6 so that the pins are connected to the carbon brush wire 71 of the carbon brush 7 .

[0078] Thus, the inductor foot guide groove 431 facilitates the pin of the inductor 6 to approach and connect to the carbon brush wire 71 of the carbon brush 7, so that the pin of the inductor 6 and the carbon brush wire 71 can be butt-welded according to the current transmitted by the butt-welding terminal, without the need to solder the components before installing them on the end cover body 400, so that the end cover assembly can be fully automatically assembled, thereby improving production efficiency and assembly convenience.

[0079] In some embodiments, such as Figure 4 and Figure 9 As shown, the end cover body 400 also includes a plurality of slide rails 44 and a plurality of slingshot fixings 45, the plurality of slide rails 44 are respectively arranged in the plurality of carbon brush cylinders 43, the plurality of slingshot fixings 45 are respectively arranged adjacent to the plurality of carbon brush cylinders 43, the motor 200 also includes a plurality of slingshots 10, the slingshot fixings 45 are respectively used to install the plurality of slingshots 10 so that the slingshots 10 are connected to the carbon brushes 7 placed on the corresponding slide rails 44.

[0080] Thus, the carbon brush 7 can move through the slide rail 44 under the drive of the elastic force of the slingshot 10. The arrangement of the slingshot fixing part 45, the slingshot 10 and the slide rail 44 can enable the carbon brush 7 to always contact the commutator in the motor 200 under the elasticity of the slingshot 10, so that the motor 200 rotates, thereby improving the working stability of the motor 200.

[0081] Specifically, during the rotation of the motor 200, the carbon brush 7 will produce wear due to contact with the commutator, and the length of the carbon brush 7 will gradually shorten. Therefore, it is necessary to rely on the elastic driving force of the slingshot 10 to move along the slide rail 44 toward the commutator to always contact the commutator.

[0082] In some embodiments, sufficient gaps are left between the inductor foot guide grooves 431 and the slide rails 44 to allow a welding machine to enter and automatically weld the carbon brush wire 71 to the pins of the inductor 6 .

[0083] In some embodiments, such as Figure 4 and Figure 9 As shown, the number of the multiple slingshot fixings 45 is an integer multiple of 2, the number of the multiple slide rails 44 is an integer multiple of 2, the multiple slingshot fixings 45 are symmetrically arranged on the end cover body 400, and the multiple slide rails 44 are symmetrically arranged on the end cover body 400.

[0084] Therefore, the slingshot fixing member 45 and the slide rail 44 are both symmetrically designed so that installation can be achieved using one slingshot 10 and one carbon brush 7, reducing the investment in production molds, lowering production costs, and being more conducive to automatic line production, facilitating fully automated installation and production, and being more conducive to suppressing the EMC (Electro Magnetic Compatibility) of the motor 200.

[0085] In some embodiments, such as Figure 4 and Figure 9As shown, the end cover body 400 includes two inductor slots 42, two carbon brush cylinders 43, two slingshot fixings 45 and two slide rails 44. The inductor 6 includes a first inductor 61 and a second inductor 62. The carbon brush 7 includes a first carbon brush 72 and a second carbon brush 73. The first inductor 61 is installed in one of the two inductor slots 42, and the second inductor 62 is installed in the other of the two inductor slots 42. The first carbon brush 72 is installed in one of the two carbon brush cylinders 43, and the second carbon brush 73 is installed in the other of the two carbon brush cylinders 43. , grooves are provided at the bottom of the first carbon brush 72 and the bottom of the second carbon brush 73 (not shown in the figure), and the first carbon brush 72 and the second carbon brush 73 are respectively mounted on the two slide rails 44 through the grooves, and the slingshot 10 includes a first slingshot 101 and a second slingshot 102, the first slingshot 101 is mounted on one of the two slingshot fixing members 45, and the second slingshot 102 is mounted on the other slingshot fixing member 45 of the two slingshot fixing members 45, one end of the first slingshot 101 is connected to the first carbon brush 72, and one end of the second slingshot 102 is connected to the second carbon brush 73.

[0086] Thus, the first inductor 61 and the second inductor 62 are installed in the two inductor slots 42, and the first carbon brush 72 and the second carbon brush 73 are respectively installed in the two carbon brush tubes 43 to be fixed on the end cover body 400 to achieve automatic assembly, and the first inductor 61 and the second inductor 62 are respectively connected to the first carbon brush 72 and the second carbon brush 73 to form a circuit with the commutator and other components in the motor 200, and drive the motor 200 to rotate on the basis of connecting to an external power supply.

[0087] Secondly, the first carbon brush 72 and the second carbon brush 73 are respectively installed on the two slide rails 44 to move along the slide rails 44 under the action of the elastic driving force of the first slingshot 101 and the second slingshot 102, so that the first carbon brush 72 and the second carbon brush 73 are always in contact with the commutator.

[0088] In some embodiments, such as Figure 4 and Figure 9As shown, the temperature control switch 9 includes a first pin 91 and a second pin 92, the first inductor 61 includes a third pin 611 and a fourth pin 612, and the second inductor 62 includes a fifth pin 621 and a sixth pin 622, wherein the first pin 91 is connected to the first touch-welding terminal 551, the second pin 92 is connected to the third pin 611, the fourth pin 612 is connected to the carbon brush wire 71 of the first carbon brush 72, the fifth pin 621 is connected to the carbon brush wire 71 of the second carbon brush 73, and the sixth pin 622 is connected to the second touch-welding terminal 552.

[0089] Thus, the temperature control switch 9, the first inductor 61, the second inductor 62, the first carbon brush 72, and the second carbon brush 73 form a circuit through the connecting pins, and the parts of the first carbon brush 72 and the second carbon brush 73 that contact the commutator, and then the current transmitted through the first touch-welding terminal 551 and the second touch-welding terminal 552 can make the first pin 91 and the first touch-welding terminal 551, the second pin 92 and the third pin 611, the fourth pin 612 and the carbon brush wire 71 of the first carbon brush 72, the carbon brush wire 71 of the second carbon brush 73 and the fifth pin 621, and the sixth pin 622 and the second touch-welding terminal 552 all touch-welded and connected. There is no need to solder the pins before installing them on the end cover body 400, and they can be directly touch-welded and connected during the installation process, so that the motor end cover 300 can be automatically assembled, which improves production efficiency and assembly convenience and reduces labor costs.

[0090] In some embodiments, such as Figure 4 and Figure 9 As shown, the end cover body 400 includes a circuit board groove 41, which is used to install the circuit board 8 in the motor 200, and the connecting terminal 52 located in the circuit board groove 41 is connected to the circuit board 8, wherein the connecting terminal 52 located in the circuit board groove 41 is fisheye-shaped.

[0091] Thus, the multiple connecting terminals 52 are connected to the circuit board 8, and the circuit board 8 is fixed in the circuit board groove 41 by interference fit through the elastic tension of the fisheye-shaped connecting terminals 52, thereby replacing the traditional solder connection and fixing the circuit board 8 in the circuit board groove 41, thereby improving production efficiency and realizing fully automated assembly.

[0092] In some embodiments, the first power terminal 541 and the second power terminal 542 located in the circuit board groove 41 can supply power to the circuit board 8 so that it can achieve its predetermined function. The grounding terminal 56 is also located in the circuit board groove 41, so that the circuit board 8 is stably grounded through the grounding terminal 56, wherein the grounding terminal 56 is also in a fisheye shape.

[0093] In some embodiments, the first signal terminal 531 and the second signal terminal 532 are also located in the circuit board groove 41. The presence of the first signal terminal 531 and the second signal terminal 532 enables the circuit board 8 to transmit signals to control the motor 200, wherein the first signal terminal 531 and the second signal terminal 532 located in the circuit board groove 41 are also fisheye-shaped.

[0094] In some embodiments, such as Figure 9 As shown, the circuit board 8 includes a circuit element 81 and a mounting board 82 , and the circuit element 81 is mounted on the mounting board 82 .

[0095] Thus, the circuit element 81 is mounted on the mounting plate 82 to form a circuit board 8 to control the motor 200 .

[0096] In some embodiments, such as Figure 9 As shown, the mounting board 82 includes a first surface 821 and a second surface, wherein the first surface 821 and the second surface are two opposite surfaces on the mounting board 82, and the circuit element 81 includes an EMC element and a signal circuit element 81, wherein the EMC element is mounted on the first surface 821, and the signal circuit element 81 is mounted on the second surface.

[0097] Thus, the EMC element is installed on the first surface 821 to form an EMC circuit to suppress EMC, and the signal circuit element 81 is installed on the second surface to transmit signals to control the working state of the motor 200; and the mounting board 82 is designed as a double-sided board, which can increase the function of the circuit board 8 without increasing the area size, so as to maximize the use of space area.

[0098] In some embodiments, such as Figure 9 and Figure 10 As shown, the mounting plate 82 is provided with a plurality of power holes 83 and a grounding hole 84. The first power terminal 541 and the second power terminal 542 in the fisheye shape located in the circuit board groove 41 are respectively inserted into the plurality of power holes 83 for supplying power to the circuit board 8. The fisheye-shaped grounding terminal 56 in the circuit board groove 41 in the motor end cover 300 is inserted into the grounding hole 84 for grounding the circuit board 8.

[0099] In some embodiments, such as Figure 9 and Figure 10 As shown, the mounting plate 82 is further provided with a plurality of signal holes 85, and the fisheye-shaped first signal terminal 531 and the second signal terminal 532 located in the circuit board groove 41 in the motor end cover 300 are respectively inserted into the plurality of signal holes 85, and the signal circuit element 81 transmits signals through the fisheye-shaped first signal terminal 531 and the second signal terminal 532.

[0100] As mentioned above, Figure 4 and Figure 5 As shown, the first terminal 500a includes two first power terminals 541, a first soldering terminal 551 and two first signal terminals 531, and the second terminal 500b includes two second power terminals 542, a second soldering terminal 552 and two second signal terminals 532. One of the two first power terminals 541 is located in the circuit board groove 41 and is a fisheye-shaped first power terminal 541. One of the two second power terminals 542 is located in the circuit board groove 41 and is a fisheye-shaped second power terminal 542. One of the two first signal terminals 531 is located in the circuit board groove 41 and is a fisheye-shaped first signal terminal 531. One of the two second signal terminals 532 is located in the circuit board groove 41 and is a fisheye-shaped second signal terminal 532.

[0101] Specifically, the first power terminal 541 and the second power terminal 542 not located in the circuit board groove 41 are connected to the positive and negative poles of the external power supply respectively, and the current flows as follows:

[0102] First circuit: The current output by the external power supply flows into the connecting portion 51 through the first power terminal 541, which is not located in the circuit board groove 41, and then flows into the first touch-welding terminal 551. The first touch-welding terminal 551 outputs the current to the first pin 91. The first pin 91 transmits the current to the third pin 611 of the first inductor 61 via the second pin 92. The fourth pin 612 transmits the current to the carbon brush wire 71 of the first carbon brush 72. The carbon brush wire 71 outputs the current through the first carbon brush 72, the commutator and other components to the carbon brush wire 71 of the second carbon brush 73. The carbon brush wire 71 of the second carbon brush 73 outputs the current to the fifth pin 621 of the second inductor 62 via the second carbon brush 73, and then outputs the current to the second touch-welding terminal 552 through the sixth pin 622, so that the current flows back to the external power supply through the second power terminal 542, which is not located in the circuit board groove 41.

[0103] Second circuit: The current output by the external power supply flows into the connecting part 51 through the first power terminal 541 which is not located in the circuit board groove 41, and then flows into the fisheye-shaped first power terminal 541. The fisheye-shaped first power terminal 541 outputs the current to the circuit board 8, and then outputs the current to the second power terminal 542 which is not located in the circuit board groove 41 through the fisheye-shaped second power terminal 542, and then the current flows back to the external power supply through the second power terminal 542 which is not located in the circuit board groove 41.

[0104] Furthermore, if the circuit board 8 is a double-sided board, it can transmit an external signal to the first signal terminal 531 that is not located in the circuit board groove 41, and transmit the signal to the fisheye-shaped first signal terminal 531 through the first signal connection portion 533. The fisheye-shaped first signal terminal 531 transmits the signal to the circuit of the circuit board 8, and the fisheye-shaped second signal terminal 532 outputs the signal containing the required information output by the circuit board 8 to the second signal terminal 532 that is not located in the circuit board groove 41, so that the external device can obtain the required information.

[0105] It can be understood that the mounting board 82 can be set as a double-sided board or a single-sided board as needed. If the mounting board 82 is a single-sided board, the mounting board 82 does not need a signal circuit element 81, nor does it need to be provided with multiple signal holes 85. The circuit board 8 can only constitute an EMC circuit.

[0106] Please also refer to Figure 11 , Figure 11 FIG. 8 is a circuit diagram of a double-sided circuit board 8 in an embodiment of the present application. Figure 9 and Figure 11As shown, when the circuit board 8 is a double-sided board, the first side 821 is the EMC circuit, and the second side is the signal circuit. The EMC circuit is composed of a first capacitor C1, a second capacitor C2, a third capacitor C3 and a varistor V, and the signal circuit is composed of a fourth capacitor C4, a resistor R and a Hall sensor 811.

[0107] As mentioned above, the current flows into the first power terminal 541 which is not located in the groove 41 of the circuit board, and is shunted to the first soldering terminal 551 and the fisheye-shaped first power terminal 541 to flow into the EMC circuit and the temperature control switch 9. The current flows into the first inductor L1 through the temperature control switch 9, and then flows into the commutator and other components through the first carbon brush 72. Thereafter, the current is shunted to the magnetic ring and the second inductor L2 in the motor 200. The current flowing through the second inductor L2 flows to the second power terminal 542, and the magnetic ring rotates under the drive of the magnetic field generated by the rotation of the motor 200. At this time, the fisheye-shaped first signal terminal 531 will not be located in the The signal input by the first signal terminal 531 in the circuit board groove 41 is transmitted to the Hall sensor 811. The Hall sensor 811 detects the change of the magnetic field through the rotation of the magnetic ring, and then outputs a pulse signal according to the change of the magnetic field, which is sent to the second signal terminal 532 not located in the circuit board groove 41 through the fisheye-shaped second signal terminal 532. According to the pulse signal, the speed and other status information of the motor 200 can be obtained, wherein the first inductor 61 is the above-mentioned first inductor L1, and the second inductor 62 is the above-mentioned second inductor L2. The components marked with M in the figure are schematically represented by the commutator and other components, and the components marked with N / S in the figure are magnetic rings.

[0108] Please also refer to Figure 12 , Figure 12 This is a circuit diagram of a single-sided circuit board 8 in an embodiment of the present application. When the circuit board 8 is a double-sided board, the circuit board 8 only includes the EMC circuit, so the commutator and other components are not connected to the magnetic ring, and there is no Hall sensor 811 to detect and send signals.

[0109] In some embodiments, the circuit element 81 is a surface-mount element.

[0110] Therefore, the patch-type components are easier to assemble than the pin-type components, and the patch-type components occupy a smaller area than the pin-type components, so there is no need to reserve space for the pins, thereby reducing the space area occupied by the circuit board 8 and reducing production costs; and it is also convenient to realize fully automated installation and production, thereby improving production efficiency.

[0111] The above description is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application; the embodiments of this application and the features of the embodiments can be combined with each other unless there is a conflict. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A motor end cover (300), applied to a motor (200), characterized in that: include: End cap body (400); At least one terminal (500), the terminal (500) is an integrated structure, assembled and connected with the end cover body (400), each terminal (500) includes a connecting portion (51) and a plurality of connecting terminals (52), the plurality of connecting terminals (52) of the terminal (500) are respectively connected to the connecting portion (51) of the terminal (500), the connecting portion (51) is located inside the end cover body (400), and at least part of the plurality of connecting terminals (52) is located outside the end cover body (400).

2. The motor end cover (300) according to claim 1, characterized in that: The plurality of connection terminals (52) include at least one of a power supply terminal and a soldering terminal.

3. The motor end cover (300) according to claim 1, characterized in that: The terminal (500) further includes a grounding terminal (56), and the grounding terminal (56) is not connected to the connecting portion (51).

4. The motor end cover (300) according to claim 3, characterized in that: Before the terminal (500) is assembled and connected to the end cover body (400), the grounding terminal (56) is connected to the connecting portion (51), and is disconnected from the connecting portion (51) during the assembly process.

5. The motor end cover (300) according to claim 1, characterized in that: The terminal (500) further includes a signal terminal, and the signal terminal is not connected to the connecting portion (51).

6. The motor end cover (300) according to claim 5, characterized in that: Before the terminal (500) is assembled and connected with the end cover body (400), the signal terminal is connected to the connecting portion (51), and is disconnected from the connecting portion (51) during the assembly process.

7. The motor end cover (300) according to any one of claims 2 to 6, characterized in that: The end cover body (400) comprises a circuit board groove (41), the circuit board groove (41) being used to install a circuit board (8) in the motor (200), the connecting terminal (52) located in the circuit board groove (41) being connected to the circuit board (8), wherein the connecting terminal (52) located in the circuit board groove (41) is in a fisheye shape.

8. The motor end cover (300) according to claim 1, characterized in that: The end cover body (400) further includes a plurality of inductor slots (42), each of which is used to install an inductor (6) in the motor (200). The number of the plurality of inductor slots (42) is an integer multiple of 2, and the plurality of inductor slots (42) are symmetrically arranged on the end cover body (400).

9. The motor end cover (300) according to claim 8, characterized in that: An opening (421) is provided on each of the inductor slots (42), and a plurality of ribs (422) are provided in each of the inductor slots (42). The plurality of ribs (422) are respectively arranged on the inner wall of the inductor slot (42) at intervals along the circumference of the inductor slot (42) to fasten the inductor (6) in each of the inductor slots (42).

10. The motor end cover (300) according to claim 8, characterized in that: The motor (200) is a brushed motor, and the end cover body (400) further comprises a plurality of carbon brush cylinders (43), wherein the plurality of carbon brush cylinders (43) are respectively used to install carbon brushes (7) in the brushed motor, and the number of the plurality of carbon brush cylinders (43) is an integer multiple of 2, and the plurality of carbon brush cylinders (43) are symmetrically arranged on the end cover body (400).

11. The motor end cover (300) according to claim 10, characterized in that: Each carbon brush cylinder (43) is provided with an inductor foot guide groove (431), and the inductor foot guide groove (431) is used to place the pin of the inductor (6) so that the pin is connected to the carbon brush wire (71) of the carbon brush (7).

12. The motor end cover (300) according to claim 11, characterized in that: The end cover body (400) further includes a plurality of slide rails (44) and a plurality of slingshot fixing members (45), wherein the plurality of slide rails (44) are respectively arranged in the plurality of carbon brush cylinders (43), and the plurality of slingshot fixing members (45) are respectively arranged adjacent to the plurality of carbon brush cylinders (43), and each of the slingshot fixing members (45) is used to install a slingshot (10) in the motor (200) so that the slingshot (10) is connected to the carbon brush (7) placed on the corresponding slide rail (44).

13. The motor end cover (300) according to claim 12, characterized in that: The number of the multiple slingshot fixing members (45) is an integer multiple of 2, the number of the multiple slide rails (44) is an integer multiple of 2, the multiple slingshot fixing members (45) are symmetrically arranged on the end cover body (400), and the multiple slide rails (44) are symmetrically arranged on the end cover body (400).

14. The motor end cover (300) according to claim 7, characterized in that: The circuit board (8) comprises a circuit element (81) and a mounting plate (82), wherein the circuit element (81) is mounted on the mounting plate (82).

15. The motor end cover (300) according to claim 14, characterized in that: The mounting board (82) includes a first surface (821) and a second surface, wherein the first surface (821) and the second surface are two opposite surfaces on the mounting board (82), and the circuit element (81) includes an EMC element and a signal circuit element, wherein the EMC element is mounted on the first surface (821) and the signal circuit element is mounted on the second surface.

16. The motor end cover (300) according to claim 14 or 15, characterized in that: The circuit element (81) is a patch element.

17. A motor (200), characterized in that include: The motor end cover (300) according to any one of claims 1 to 16.

18. A vehicle (100), characterized in that include: The electric machine (200) as claimed in claim 17.

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