An end disc assembly, an end winding structure, a motor stator and a motor

Abstract

The utility model discloses an end disc assembly, end portion wiring structure, motor stator and motor relates to motor technical field, wherein, the end disc assembly, include: the wire arrangement box, its several wire slots and openwork hole, the wire slot top opening, openwork hole with wire slot bottom intercommunication, several base feet are used for making wire arrangement box with coil winding and / or motor stator's stator support assembly keep preset interval, the root of base foot is fixedly connected with wire arrangement box, and its end portion is used for with coil winding and / or stator support assembly opposite fixed connection, this end disc assembly, end portion wiring structure, motor stator and motor set up base foot, increase the interval between wire arrangement box and coil winding, and set up openwork hole in the wire slot bottom, make terminal can extend from wire arrangement box bottom to the outside of peripheral wall, and pass through openwork hole and corresponding busbar conduction, avoid terminal bare to the end of motor stator.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more specifically, to an end plate assembly, an end wiring structure, a motor stator, and a motor. Background Technology

[0002] A motor stator typically includes a stator support and multiple sets of coil assemblies on its outer periphery. The coil assembly includes a coil support and windings. The phase wire ends of the windings (such as flat wires or round wires) of the multiple sets of coil assemblies need to be connected through terminal blocks to form a phase wire interface.

[0003] The existing motor stators have the following technical problems:

[0004] After the copper wire is wound around the stator winding, the copper wire terminals still need to be manually wound around the stator winding by workers, and finally the terminals are fixed on the stator winding.

[0005] In practical applications, since motor stators typically include multiple coil windings, multiple phase wire terminals need to be connected separately. To maintain the neatness of the stator ends, multiple concentric busbars are usually used for welding the terminals. However, during terminal welding, because the busbars are arranged in parallel or concentric ways, the terminals may cross over non-conductive busbars and become connected to the corresponding busbars. This results in the terminals being exposed at the ends of the motor stator, making the stator ends uneven. Furthermore, when assembling other components, the terminals may be accidentally touched, causing poor contact between the terminals and the busbars, which affects the normal operation of the motor.

[0006] In summary, how to solve the problem of terminals being exposed at the ends of the motor stator is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide an end plate assembly that increases the gap between the wire management box and the coil winding by setting a base foot, and provides a hollow hole at the bottom of the wire slot so that the terminal can extend from the bottom of the wire management box to the outside of the peripheral wall, and is connected to the corresponding busbar through the hollow hole, thus avoiding the terminal being exposed at the end of the motor stator.

[0008] The second objective of this invention is to provide an end wiring structure that includes the aforementioned end plate assembly, has the same technical features, and can solve the same technical problems.

[0009] The third objective of this utility model is to provide a motor stator that includes the above-mentioned end wiring structure, has the same technical features, and can solve the same technical problems.

[0010] The fourth objective of this utility model is to provide a motor including the above-mentioned motor stator, which has the same technical features and can solve the same technical problems.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] An end plate assembly for managing wires at the terminals of the coil windings inside the stator of a motor;

[0013] The terminal assembly includes:

[0014] A cable management box having several cable grooves and perforated holes, wherein the top of the cable grooves is open and the perforated holes are connected to the bottom of the cable grooves;

[0015] Several base feet are provided to maintain a preset gap between the cable management box and the coil winding and / or the stator support assembly of the motor stator. The root of each base foot is fixedly connected to the cable management box, and its end is fixedly connected to the coil winding and / or the stator support assembly.

[0016] Preferably, the side wall of the groove is provided with a positioning groove, which communicates with the hollow hole.

[0017] Preferably, the peripheral wall of the cable management box is provided with a peripheral wall notch, and the peripheral wall notch connects to the cable groove near the peripheral wall of the cable management box.

[0018] An end wiring structure for connecting the terminals of the inner coil windings in the motor stator;

[0019] The end wiring structure includes:

[0020] The end-panel assembly described in any of the above items;

[0021] The busbar assembly includes several busbars and terminals. The busbars are assembled one-to-one with the cable trays. The terminals are arranged below the cable management box and are connected to the corresponding busbars through the cutout holes. The terminals extend radially along the motor stator to the outer periphery of one side of the cable management box.

[0022] Preferably, the terminal includes an attachment section and a radial section;

[0023] The attachment section penetrates the hollow hole and is connected to the corresponding busbar;

[0024] The radial segment is arranged below the cable management box and extends radially along the motor stator to the outer periphery of the cable management box.

[0025] Preferably, the cable management box has a ring-shaped structure;

[0026] The terminals include wiring terminals and phase wire terminals;

[0027] The radial segments of the wiring terminals and the phase terminals extend radially along the motor stator to the outer periphery of different sides of the cable management box.

[0028] Preferably, the terminal further includes a welding section located outside the peripheral wall of the cable management box and communicating with the attachment section and / or the radial section;

[0029] The length direction of the welding section is consistent with the length direction of the terminal to be welded.

[0030] Preferably, the side wall of the wire groove is provided with a positioning groove, and the attachment section of the terminal is located in the positioning groove;

[0031] And / or, the peripheral wall of the cable management box is provided with a peripheral wall notch, and the welding section is located within the peripheral wall notch.

[0032] An electric motor stator includes the end wiring structure described in any one of the above descriptions.

[0033] An electric motor, comprising the motor stator described above.

[0034] The end plate assembly provided by this utility model has at least the following advantages compared with the prior art:

[0035] 1. By setting a perforated hole in the cable management box to connect to the bottom of the cable tray, the terminals can be arranged at the bottom of the cable management box and connected to the corresponding busbar in the cable tray through the perforated hole. This prevents the terminals from being exposed above the cable management box, i.e., exposed at the end of the motor stator. This helps to keep the shaft ends of the motor terminals neat. In addition, the protection of the terminals by the cable management box prevents poor contact caused by accidental contact of the terminals during the assembly of other components.

[0036] 2. The cable management box and stator support assembly and / or coil winding are fixedly connected by the base feet, so that the bottom of the cable management box and the coil winding maintain a preset gap, which can accommodate the terminals and prevent the terminals from contacting and conducting with the wires in the coil winding. At the same time, increasing the gap between the cable management box and the coil winding helps to increase the heat dissipation capacity of the busbar and the coil winding.

[0037] The end wiring structure provided by this utility model includes the aforementioned end plate assembly and has the same beneficial effects.

[0038] The motor stator provided by this utility model includes the aforementioned end wiring structure and has the same beneficial effects.

[0039] The motor provided by this utility model includes the motor stator described above and has the same beneficial effects. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of a specific motor stator provided by this utility model;

[0042] Figure 2 A bottom view of the specific motor stator provided by this utility model;

[0043] Figure 3 A side view of the specific motor stator provided by this utility model;

[0044] Figure 4 Provided by this utility model Figure 3 Enlarged view of point A in the middle;

[0045] Figure 5 An exploded view of the end wiring structure provided by this utility model;

[0046] Figure 6 A schematic diagram of the end wiring structure provided by this utility model;

[0047] Figure 7 A schematic diagram of the bottom structure of the end wiring structure provided by this utility model;

[0048] Figure 8 Provided by this utility model Figure 7 Enlarged view of point B in the middle.

[0049] In the picture:

[0050] 1. Cable management box; 11. Base; 12. Peripheral wall notch; 13. Positioning groove; 14. Cutout hole;

[0051] 2. Busbar assembly; 21. Terminal block; 211. Attachment section; 212. Radial section; 213. Welding section; 22. Phase wire terminal;

[0052] 3. Stator support assembly;

[0053] 4. Coil winding; 41. Phase wire terminal; 42. Conductor terminal;

[0054] 5. Conductor components. Detailed Implementation

[0055] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0056] The core of this utility model is to provide an end plate assembly. By setting a base, the gap between the wire management box and the coil winding is increased, and a hollow hole is set at the bottom of the wire slot, so that the terminal can extend from the bottom of the wire management box to the outside of the peripheral wall, and is connected to the corresponding busbar through the hollow hole, thus avoiding the terminal being exposed at the end of the motor stator.

[0057] The second core of this utility model is to provide an end wiring structure including the above-mentioned end plate assembly, which has the same technical features and can solve the same technical problems.

[0058] The third core of this utility model is to provide a motor stator including the above-mentioned end wiring structure, which has the same technical features and can solve the same technical problems.

[0059] The fourth core of this utility model is to provide a motor including the above-mentioned motor stator, which has the same technical features and can solve the same technical problems.

[0060] Please refer to Figures 5-8 An end plate assembly for managing the wires at the terminals of the inner coil winding 4 of a motor stator;

[0061] End-of-life components, including:

[0062] Cable management box 1, which has several cable grooves and hollow holes 14, with the top of the cable grooves open and the hollow holes 14 connected to the bottom of the cable grooves;

[0063] Several bases 11 are used to maintain a preset gap between the cable management box 1 and the coil winding 4 and / or the stator support assembly 3 of the motor stator. The root of the base 11 is fixedly connected to the cable management box 1, and its end is used to be fixedly connected to the coil winding 4 and / or the stator support assembly 3.

[0064] like Figure 5 As shown, the cable management box 1 has a ring-shaped structure, and its outer diameter is close to the rotational outer diameter of the coil winding 4. Several wire grooves are concentrically arranged inside the cable management box 1 to fix and accommodate multiple busbars. A hollow hole 14 is provided at the bottom of the wire groove to allow the terminals arranged at the bottom of the cable management box 1 to pass through and thus communicate with the busbars in the wire groove. At the same time, the hollow hole 14 can also make the cable management box 1 lighter.

[0065] At the same time, such as Figure 3 and Figure 6 As shown, by setting the base 11, the cable management box 1 is fixed to the stator support assembly 3 and / or the coil winding 4 and a preset gap is maintained. The preset gap is greater than the thickness of the terminal. After the cable management box 1 is fixed to the stator support assembly 3 and / or the coil winding 4, the terminal can be accommodated in the above-mentioned gap and will not contact the stator support assembly 3 and / or the coil winding 4 for conduction. This allows the terminal to extend to the outside of the peripheral wall of the cable management box 1 through the above-mentioned gap, which facilitates the soldering of the wiring terminals of the coil winding 4 to the terminal.

[0066] Furthermore, by accommodating the terminals within the aforementioned gap, the terminals can be protected by the cable management box 1, preventing the terminals from being directly exposed at the end of the motor stator. This avoids poor contact caused by accidental contact with the terminals during the assembly of other components, while also ensuring that the end of the motor stator is neat.

[0067] In some embodiments, the sidewall of the wire groove is provided with a positioning groove 13, which communicates with the hollow hole 14.

[0068] like Figure 6 As shown, a positioning groove 13 is provided on the side wall of the line slot and is connected to the hollow hole 14. When the terminal passes through the hollow hole 14 at the bottom, it can be accommodated in the positioning groove 13 and abut against the side wall of the bus. Taking a flat bus as an example, its side height is much greater than the thickness of the top and bottom ends. Therefore, the terminal is accommodated in the positioning groove 13 and abuts against the side wall of the bus to conduct electricity, which can increase the contact area between the terminal and the bus and thus ensure conductivity.

[0069] In some embodiments, the peripheral wall of the cable management box 1 is provided with a peripheral wall notch 12, which connects to the cable groove near the peripheral wall of the cable management box 1.

[0070] like Figure 6 As shown, both the inner and outer peripheral walls of the cable management box 1 are provided with peripheral wall notches 12, which are connected to the adjacent cable trays. This helps to dissipate heat from the busbars in the adjacent cable trays and can accommodate the soldering parts of the terminals. By reasonably setting the length of the terminals, the soldering parts of the terminals can be accommodated in the peripheral wall notches 12 and do not contact or conduct with the busbars in the adjacent cable trays. Of course, the terminals corresponding to the busbars in the adjacent cable trays can be directly connected to the busbars.

[0071] Furthermore, both the inner and outer sides are provided with peripheral wall notches 12, which can be used to accommodate different types of terminals. For example, the notch on the outer peripheral wall can accommodate the terminal 21 for welding the terminals of the coil winding 4, and the notch on the inner peripheral wall can accommodate the phase terminal 22 for conducting the power phase line.

[0072] In addition to the end plate assembly disclosed in the above embodiments, the present invention also provides an end wiring structure for connecting the wiring terminals of the inner coil winding 4 of the motor stator.

[0073] End wiring structure, including:

[0074] End disk components of any of the above;

[0075] Busbar assembly 2 includes several busbars and terminals. The busbars are assembled one-to-one with the wire troughs. The terminals are arranged below the cable management box 1 and are connected to the corresponding busbars through the cutout holes 14. The terminals extend radially along the motor stator to the outer periphery of one side of the cable management box 1.

[0076] Several busbars in the busbar assembly 2 are assembled one-to-one with the wire slots, and they do not contact or conduct with each other. The terminals are located below the cable management box 1, which helps to keep the motor stator end neat and avoids accidental contact with the terminals during subsequent assembly. At the same time, the terminals extend to the outside of the peripheral wall on one side of the cable management box 1, which facilitates the soldering operation of the wiring terminals.

[0077] In some embodiments, the terminal includes an attachment segment 211 and a radial segment 212;

[0078] The attachment section 211 is connected to the corresponding busbar through the perforated hole 14;

[0079] The radial segment 212 is arranged below the cable management box 1 and extends radially along the motor stator to the outside of the peripheral wall of the cable management box 1.

[0080] like Figure 7 and Figure 8 As shown, the terminal includes an attachment section 211 and a radial section 212, which are perpendicular to each other. The attachment section 211 has a large contact area with the busbar, which improves conductivity and avoids poor contact. The radial section 212 extends from below the cable management box 1 to the outside of the peripheral wall of the cable management box 1, which facilitates the soldering operation of the terminal.

[0081] In some embodiments, the cable management box 1 has a ring structure;

[0082] The terminals include wiring terminal 21 and phase terminal 22;

[0083] The radial segments 212 of the wiring terminal 21 and the phase terminal 22 extend radially along the motor stator to the outer side of the peripheral wall on different sides of the cable management box 1.

[0084] like Figure 7 As shown, the terminals include wiring terminals 21 and phase wire terminals 22. Both extend from the bottom of the cable management box 1 to the outside of the peripheral wall of the cable management box 1, and extend in different directions, so as to facilitate the differentiation of their types and avoid wiring errors.

[0085] In some embodiments, the terminal further includes a welding section 213 located outside the peripheral wall of the cable management box 1 and communicating with the attachment section 211 and / or the radial section 212.

[0086] The length direction of welding section 213 is consistent with the length direction of the terminal to be welded.

[0087] like Figure 8 As shown, by setting a welding section 213 perpendicular to the radial section 212, the conductive position of the terminal is parallel to the wiring terminal, so that the terminal and the wiring terminal can have a large contact area, ensuring good contact between the two.

[0088] In some embodiments, the sidewall of the wire trough is provided with a positioning groove 13, and the attachment section 211 of the terminal is located in the positioning groove 13.

[0089] And / or, the peripheral wall of the cable management box 1 is provided with a peripheral wall notch 12, and the welding section 213 is located within the peripheral wall notch 12.

[0090] Positioning grooves 13 are provided on the side wall of the online slot to enable the terminal to obtain the correct installation position;

[0091] By setting a peripheral wall notch 12 on the peripheral wall of the cable management box 1, the welding section 213 can be partially or completely accommodated in the peripheral wall notch 12, thereby reducing the radial space occupied by the motor stator.

[0092] In addition to the end plate assembly and end wiring structure disclosed in the above embodiments, the present invention also provides a motor stator including the above end wiring structure;

[0093] The coil winding 4 inside the motor stator can be connected in a star configuration or in a delta configuration;

[0094] When a star connection is used, the phase wire terminal 41 in the coil winding 4 is connected to the busbar of the corresponding phase, and the wire terminal 42 is connected to the conductor assembly 5. The conductor assembly 5 can be fixedly installed in the cable management box 1 as a busbar, located on the same axial end of the motor stator as other busbars, or it can be... Figure 1 , Figure 2 and Figure 3 As shown, it is located at an axial end that is different from other busbars.

[0095] The structure of other parts of the motor stator is described in reference to existing technologies and will not be repeated here.

[0096] In addition to the end plate assembly, end wiring structure and motor stator disclosed in the above embodiments, this utility model also provides a motor including the above-mentioned motor stator. For the structure of other parts of the motor, please refer to the prior art, which will not be repeated here.

[0097] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0098] The end plate assembly, end wiring structure, motor stator, and motor provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An end plate assembly for managing the wires at the terminals of the inner coil windings (4) of a motor stator, characterized in that, include: A cable management box (1) has several cable grooves and a hollow hole (14), the top of the cable grooves is open, and the hollow hole (14) is connected to the bottom of the cable grooves; Several bases (11) are used to maintain a preset gap between the cable management box (1) and the coil winding (4) and / or the stator support assembly (3) of the motor stator. The root of the base (11) is fixedly connected to the cable management box (1), and its end is used to be fixedly connected to the coil winding (4) and / or the stator support assembly (3).

2. The end-panel assembly according to claim 1, characterized in that, The side wall of the groove is provided with a positioning groove (13), which is connected to the hollow hole (14).

3. The end-panel assembly according to claim 1, characterized in that, The peripheral wall of the cable management box (1) is provided with a peripheral wall notch (12), which connects to the cable groove near the peripheral wall of the cable management box (1).

4. An end wiring structure for connecting the terminals of the inner coil winding (4) of a motor stator, characterized in that, include: The end plate assembly according to any one of claims 1-3; Busbar assembly (2) includes several busbars and terminals. The busbars are assembled one-to-one with the wire troughs. The terminals are arranged below the cable management box (1) and are connected to the corresponding busbars through the cutout holes (14). The terminals extend radially along the motor stator to the outside of the peripheral wall on one side of the cable management box (1).

5. The end wiring structure according to claim 4, characterized in that, The terminal includes an attachment section (211) and a radial section (212); The attachment section (211) passes through the hollow hole (14) and is connected to the corresponding busbar; The radial segment (212) is arranged below the cable management box (1) and extends radially along the motor stator to the outside of the peripheral wall of the cable management box (1).

6. The end wiring structure according to claim 5, characterized in that, The cable management box (1) has a ring-shaped structure; The terminals include wiring terminals (21) and phase terminals (22); The radial segments (212) of the terminal block (21) and the phase wire terminal (22) extend radially along the motor stator to the outer side of the peripheral wall on different sides of the cable management box (1).

7. The end wiring structure according to claim 5, characterized in that, The terminal also includes a welding section (213) located outside the peripheral wall of the cable management box (1) and connected to the attachment section (211) and / or the radial section (212); The length direction of the welding section (213) is consistent with the length direction of the terminal to be welded.

8. The end wiring structure according to claim 7, characterized in that, The side wall of the wire trough is provided with a positioning groove (13), and the attachment section (211) of the terminal is located in the positioning groove (13); And / or, the peripheral wall of the cable management box (1) is provided with a peripheral wall notch (12), and the welding section (213) is located within the peripheral wall notch (12).

9. A motor stator, characterized in that, Includes the end wiring structure as described in any one of claims 4-8.

10. An electric motor, characterized in that, Includes the motor stator as described in claim 9.

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