Busbar and stator

Abstract

The utility model discloses a busbar and a stator. Belongs to the technical field of motor stators, and comprises a conductive assembly, an insulation support and an insulation buckle, the conductive assembly is provided with a plurality of leading-out heads and a plurality of pins, the leading-out heads are suitable for being electrically connected with a power supply wire harness of a stator, the pins are suitable for being electrically connected with a winding leading-out wire of the stator, and the conductive assembly is fixedly arranged on the insulation support. The insulation support is provided with an assembling groove, at least two of the multiple pins are located in the assembling groove, the insulation buckle is installed on the insulation support, and the insulation buckle is used for separating any two adjacent pins in the assembling groove and separating any two adjacent winding outgoing lines in the assembling groove. According to the busbar provided by the embodiment of the utility model, the creepage phenomenon of the busbar can be effectively reduced, and the risk of insulation failure of the busbar is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, specifically, a busbar and stator. BACKGROUND

[0002] The busbar of the motor is mainly used for connecting the winding of the stator and the external high-voltage line. In the related art, the multiple outgoing lines of the winding are welded and connected with the multiple copper bar pins of the busbar one by one at the busbar to form multiple spaced electric connection structures. However, due to the limited space of the busbar, the electrical gap and the creepage distance between the adjacent electric connection structures are small. When the motor is running, the adjacent electric connection structures in the busbar are prone to breakdown, causing the insulation failure of the busbar and affecting the reliability and safety of the motor. SUMMARY

[0003] The utility model aims at at least one of the above technical problems in the prior art to some extent. To this end, the utility model provides a busbar, which can increase the creepage distance to reduce the risk of insulation failure of the busbar.

[0004] The utility model further provides a stator with the above busbar.

[0005] According to the busbar of the utility model embodiment, the busbar is used for the stator, which comprises: a conductive assembly, the conductive assembly has multiple outgoing heads and multiple pins, the outgoing head is suitable for electrically connecting with the power supply wire harness of the stator, and the pin is suitable for electrically connecting with the winding outgoing line of the stator;An insulating support, the conductive assembly is fixedly arranged on the insulating support, the insulating support has an assembly slot, and at least two pins in the multiple pins are located in the assembly slot;An insulating buckle, the insulating buckle is installed on the insulating support, and the insulating buckle is used for spacing any two adjacent pins in the assembly slot and spacing any two adjacent winding outgoing lines in the assembly slot.

[0006] According to the busbar of the utility model embodiment, the insulating support has the assembly slot, at least two pins are located in the assembly slot, the pin is electrically connected with the winding outgoing line of the stator, the insulating buckle spaces any two adjacent pins in the assembly slot, and the insulating buckle also spaces any two adjacent winding outgoing lines in the assembly slot, so that the creepage distance between the adjacent electric connection structures in the assembly slot can be increased, the electrical breakdown is prevented, and the risk of insulation failure of the busbar is reduced.

[0007] According to some embodiments of the utility model, the insulating buckle comprises: multiple partitions, the multiple partitions are arranged at intervals, and at least part of each partition is located in the assembly slot;A first limiting component, the first limiting component is connected with each partition, and the first limiting component abuts against the top surface of the insulating support;A second limiting component, the second limiting component is connected to the first limiting component or at least one partition, and the second limiting component abuts against the bottom surface of the insulating support.

[0008] According to some embodiments of the present application, the insulating buckle further comprises: a connecting plate, and the end of each partition plate in the width direction is connected to the connecting plate.

[0009] According to some embodiments of the present application, the first limiting component comprises: a first connecting piece, one end of each partition plate in the width direction is connected to the first connecting piece; a first clamping jaw, the first clamping jaw is connected to the first connecting piece, and the first clamping jaw abuts against the top surface of the insulating support; a second connecting piece, the other end of each partition plate in the width direction is connected to the second connecting piece; and a second clamping jaw, the second clamping jaw is connected to the second connecting piece, and the second clamping jaw abuts against the top surface of the insulating support.

[0010] According to some embodiments of the present application, the second limiting component comprises: a third connecting piece, the third connecting piece is connected to the first connecting piece, the third connecting piece is arranged in the assembly groove and abuts against the side wall of one side of the assembly groove; a third clamping jaw, the third clamping jaw is connected to the third connecting piece, and the third clamping jaw abuts against the bottom surface of the insulating support; a fourth connecting piece, the fourth connecting piece is connected to the second connecting piece, the fourth connecting piece is arranged in the assembly groove and abuts against the side wall of the other side of the assembly groove; and a fourth clamping jaw, the fourth clamping jaw is connected to the fourth connecting piece, and the fourth clamping jaw abuts against the bottom surface of the insulating support.

[0011] According to some embodiments of the present application, the top surface of the insulating support is provided with a first limiting protrusion and a second limiting protrusion, in the width direction of the partition plate, the first clamping jaw and the second clamping jaw are located between the first limiting protrusion and the second limiting protrusion, and the first clamping jaw is in clearance fit with the first limiting protrusion, and the second clamping jaw is in clearance fit with the second limiting protrusion.

[0012] According to some embodiments of the present application, the insulating buckle further comprises: a connecting arm, at least one of the partition plate, the first limiting component and the second limiting component is connected to the connecting arm, and the connecting arm is formed with a wire harness guide groove.

[0013] According to some embodiments of the present application, the connecting arm has a stop flange, and the extension direction of the stop flange is parallel to the extension direction of the wire harness guide groove.

[0014] According to the busbar of the present application, the outer surface of the insulating support is formed with a concave-convex pattern structure.

[0015] According to the stator of another aspect of the present application, the stator comprises the busbar.

[0016] According to the stator and busbar of the embodiment of the utility model, the insulating support has an assembly groove, at least two pins are located in the assembly groove, the pins are electrically connected with the winding outgoing lines of the stator, the insulating buckle separates any two adjacent pins in the assembly groove, and the insulating buckle also separates any two adjacent winding outgoing lines in the assembly groove, so that the creepage distance between the adjacent electric connection structures in the assembly groove can be increased, electrical breakdown can be prevented, the risk of busbar insulation failure can be reduced, and the reliability of the stator can be improved.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the stator and busbar according to the embodiment of the utility model;

[0019] Figure 2 is Figure 1 an exploded view of the insulating buckle;

[0020] Figure 3 is a schematic view of the conductive assembly and insulating support according to the embodiment of the utility model;

[0021] Figure 4 is a schematic view of the conductive assembly according to the embodiment of the utility model;

[0022] Figure 5 is a perspective view of the insulating buckle according to the embodiment of the utility model;

[0023] Figure 6 is a rear view of the insulating buckle according to the embodiment of the utility model;

[0024] Figure 7 is a side view of the insulating buckle according to the embodiment of the utility model;

[0025] Figure 8 is a structural schematic view of the insulating buckle according to the embodiment of the utility model Figure 1 ;

[0026] Figure 9 is Figure 1 an enlarged view at the insulating buckle of

[0027] Figure 10 is a sectional view of the stator at the insulating buckle according to the embodiment of the utility model;

[0028] Figure 11 is a sectional view of the stator at the insulating buckle according to the embodiment of the utility model;

[0029] Figure 12It is structural schematic of the insulating buckle according to the embodiment of the utility model Figure 2 .

[0030] Reference signs:

[0031] Conductive assembly 1;Conductive piece 11;Lead-out head 111;Pin 112;Temperature detection joint 113;

[0032] Insulating support 2;Assembly slot 21;First limiting protrusion 22;Second limiting protrusion 23;

[0033] Insulating buckle 3;Partition plate 31;First limiting component 32;First connecting piece 321;First clamping jaw 322;Second connecting piece 323;Second clamping jaw 324;Second limiting component 33;Third connecting piece 331;Third clamping jaw 332;Fourth connecting piece 333;Fourth clamping jaw 334;Connecting plate 34;Connecting arm 37;Wire harness guide slot 371;Stop flange 372;

[0034] Busbar 10;

[0035] Winding lead 20;

[0036] Temperature sensor 30;Temperature sensor wire harness 301;Binding rope 302;

[0037] Stator core 40;

[0038] Stator 100. DETAILED DESCRIPTION

[0039] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0040] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0041] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0042] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] The busbar 10 and the stator 100 according to the embodiments of the present application will be described in detail below with reference to the drawings.

[0044] Referring to Figures 1-10 As shown in the figure, the busbar 10 is used for the stator 100, and the busbar 10 comprises: a conductive assembly 1, an insulating support 2 and an insulating buckle 3, the conductive assembly 1 has a plurality of outgoing heads 111 and a plurality of pins 112, the outgoing heads 111 are adapted to be electrically connected with the power supply wire harness of the stator 100, the pins 112 are adapted to be electrically connected with the winding outgoing wires 20 of the stator 100, the conductive assembly 1 is fixedly arranged on the insulating support 2, the insulating support 2 has an assembly groove 21, at least two pins 112 of the plurality of pins 112 are located in the assembly groove 21, and the insulating buckle 3 is arranged on the insulating support 2, the insulating buckle 3 is used for spacing any two adjacent pins 112 in the assembly groove 21, and spacing any two adjacent winding outgoing wires 20 in the assembly groove 21.

[0045] Among them, the number of outgoing heads 111 of the conductive assembly 1 can be three, the three outgoing heads 111 can be respectively connected to the U, V and W three-phase power of the power supply wire harness, the number of pins 112 of the conductive assembly 1 can be the same as the number of winding outgoing wires 20, each pin 112 is welded and connected with a corresponding winding outgoing wire 20, and the power supply wire harness of the stator 100 can be electrically connected with the winding outgoing wires 20 of the stator 100 through the conductive assembly 1 to supply power to the stator 100.

[0046] Specifically, the conductive assembly 1 comprises a plurality of conductive pieces 11, which can be copper bars, and the number of the conductive pieces 11 can be ten. Three of the plurality of conductive pieces 11 have a lead-out head 111, and each of the conductive pieces 11 has at least one pin 112, which can be a PIN structure. The plurality of conductive pieces 11 can be arranged in two layers (the up-down direction is the axial direction of the stator 100) so as to facilitate welding of the pins 112 and the winding lead-out wires 20. The lower layer of conductive pieces 11 is located between the upper layer of conductive pieces 11 and the stator core 40 of the stator 100. The conductive pieces 11 having the lead-out head 111 can be arranged in the upper layer so as to facilitate electrical connection of the lead-out head 111 and the power supply harness.

[0047] The insulating support 2 is an insulating material piece, which can be manufactured by injection molding so as to be integrally formed with the conductive assembly 1. The insulating support 2 has an assembly groove 21, which can accommodate the pins 112 and the winding lead-out wires 20 and also avoid welding devices for welding the pins 112 and the winding lead-out wires 20. At least two of the plurality of pins 112 of the conductive assembly 1 are located in the assembly groove 21 so as to facilitate rapid welding of the pins 112 and the corresponding winding lead-out wires 20 at a relatively concentrated position by the welding devices, thereby improving welding efficiency. In addition, the number of assembly grooves 21 on the insulating support 2 can be multiple, and the pins 112 with a close interval (e.g., less than 50 mm) can be located in the assembly grooves 21. The creepage distance between the pins 112 with a close interval can be increased by installing the insulating buckle 3 at the assembly grooves 21, thereby improving the safety of the busbar 10.

[0048] The insulating buckle 3 can be an insulating material piece formed by injection molding, and can be installed on the insulating support 2 by clamping, bonding or the like. At least part of the insulating buckle 3 is located in the assembly groove 21, and the insulating buckle 3 is used to space apart any two adjacent pins 112 in the assembly groove 21 and any two adjacent winding lead-out wires 20 in the assembly groove 21. That is, the insulating buckle 3 can increase the creepage distance between the two adjacent pins 112 in the assembly groove 21 and the creepage distance between the two adjacent winding lead-out wires 20 in the assembly groove 21, thereby reducing the risk of insulation failure of the busbar 10.

[0049] It can be understood that when the stator 100 is assembled, the integrated conductive assembly 1 and the insulating support 2 can be placed at one end of the stator core 40, and each pin 112 is in abutment with the corresponding winding lead-out wire 20, then the pin 112 is welded with the corresponding winding lead-out wire 20 by a welding device to form an electrical connection structure, and finally the insulating buckle 3 is installed and the electrical connection structure is insulated. The installation of the insulating buckle 3 is flexible and convenient. Before the installation of the insulating buckle 3, the assembly groove 21 is in an open structure to facilitate the welding operation of the welding device and the insulation treatment of the electrical connection structure. After the installation of the insulating buckle 3, the insulating buckle 3 can separate the adjacent electrical connection structures in the assembly groove 21 to increase the creepage distance between the adjacent electrical connection structures and reduce the risk of busbar 10 insulation failure.

[0050] In the above embodiment, the insulating support 2 has an assembly groove 21, at least two pins 112 are located in the assembly groove 21, the pin 112 is electrically connected with the winding lead-out wire 20 of the stator 100, the insulating buckle 3 separates any two adjacent pins 112 in the assembly groove 21, and the insulating buckle 3 also separates any two adjacent winding lead-out wires 20 in the assembly groove 21, thereby increasing the creepage distance between the adjacent electrical connection structures in the assembly groove 21, preventing electrical breakdown, and reducing the risk of busbar 10 insulation failure.

[0051] In some embodiments of the present application, referring to Figures 5-11 As shown in the figure, the insulating buckle 3 comprises a plurality of partitions 31, a first limiting component 32 and a second limiting component 33. The plurality of partitions 31 are arranged at intervals, at least part of each partition 31 is located in the assembly groove 21, the first limiting component 32 is connected with each partition 31, the first limiting component 32 is in abutment with the top surface of the insulating support 2, and the second limiting component 33 is connected to the first limiting component 32 or at least one partition 31, and the second limiting component 33 is in abutment with the bottom surface of the insulating support 2.

[0052] Specifically, the insulating buckle 3 comprises a plurality of partitions 31, at least part of each partition 31 is located in the assembly groove 21, and the plurality of partitions 31 are arranged at intervals so that the adjacent pins 112 and the adjacent winding lead-out wires 20 in the assembly groove 21 are separated by the partitions 31, that is, in the assembly groove 21, there are a plurality of electrical connection structures, each electrical connection structure is formed by the connection of the pin 112 and the winding lead-out wire 20, and the plurality of partitions 31 arranged at intervals separate the adjacent electrical connection structures, thereby increasing the creepage distance and preventing electrical breakdown.

[0053] The plurality of partitions 31 can be fixed by the first limiting component 32 to ensure that the adjacent two partitions 31 are separated, and the second limiting component 33 is connected to the first limiting component 32 or at least one partition 31, so that the insulating buckle 3 forms an integral piece, thereby facilitating the assembly and use of the insulating buckle 3.

[0054] The first limiting assembly 32 is in abutment with the top surface of the insulating support 2, the second limiting assembly 33 is in abutment with the bottom surface of the insulating support 2, and the insulating buckle 3 is clamped and matched on the upper and lower sides of the insulating support 2 through the first limiting assembly 32 and the second limiting assembly 33, so that the insulating buckle 3 is prevented from shaking and falling off the insulating support 2, and the reliability of the connection between the insulating buckle 3 and the insulating support 2 is ensured.

[0055] In some embodiments of the utility model, referring to Figures 8-10 , the insulating buckle 3 further comprises a connecting plate 34, and the end of the at least one partition plate 31 in the width direction is connected with the connecting plate 34.

[0056] Specifically, the width direction of the partition plate 31 is approximately the circumferential direction of the stator 100, that is Figures 8-10 the left-right direction in the figure, the end of the at least one partition plate 31 in the width direction is connected with the connecting plate 34, and the connecting plate 34 can further increase the creepage distance between the two adjacent electrical connection structures.

[0057] Referring to Figure 8 and 10 , when one partition plate 31 is connected with the connecting plate 34, the partition plate 31 and the connecting plate 34 can form a T-shaped plate or an L-shaped plate structure, when two partition plates 31 are connected with the connecting plate 34, the two partition plates 31 and the connecting plate 34 can form a U-shaped plate structure, when three partition plates 31 are connected with the connecting plate 34, the three partition plates 31 and the connecting plate 34 can form an m-shaped plate structure (not shown in the figure), and the number of the partition plates 31 can be one or more, so as to further improve the electrical insulation performance of the busbar 10, and meanwhile, the connecting plate 34 arranged between the adjacent partition plates 31 can improve the structural strength of the insulating buckle 3, thereby being beneficial to improving the reliability and service life of the insulating buckle 3.

[0058] In some embodiments of the utility model, referring to Figure 8 , Figure 9 and Figure 11 , the first limiting assembly 32 comprises a first connecting piece 321, a first clamping jaw 322, a second connecting piece 323 and a second clamping jaw 324, one end of each partition plate 31 in the width direction is connected with the first connecting piece 321, the first clamping jaw 322 is connected with the first connecting piece 321, the first clamping jaw 322 is in abutment with the top surface of the insulating support 2, the other end of each partition plate 31 in the width direction is connected with the second connecting piece 323, the second clamping jaw 324 is connected with the second connecting piece 323, and the second clamping jaw 324 is in abutment with the top surface of the insulating support 2.

[0059] Specifically, the width direction of the partition plate 31 is the left-right direction, one end of the width direction of the plurality of partition plates 31 is connected with the first connecting piece 321, and the other end of the width direction of the plurality of partition plates 31 is connected with the second connecting piece 323, so as to improve the connection strength between the plurality of partition plates 31, and reduce the risk of tilting and breaking of the partition plate 31, and meanwhile, the first connecting piece 321 and the second connecting piece 323 can extend to between two partition plates 31 along the width direction of the partition plate 31, so as to increase the connection area of the first connecting piece 321 and the second connecting piece 323 with the partition plate 31, thereby facilitating the improvement of the connection strength of the first connecting piece 321 and the second connecting piece 323 with the partition plate 31.

[0060] The first clamping jaw 322 is connected with the first connecting piece 321, the second clamping jaw 324 is connected with the second connecting piece 323, and the first clamping jaw 322 and the second clamping jaw 324 abut against the top surface of the insulating support 2 on both sides in the width direction of the partition plate 31, so as to ensure the stability of the connection of the insulating buckle 3 with the top surface of the insulating support 2, avoid stress concentration on the first clamping jaw 322 or the second clamping jaw 324, and reduce the risk of breaking of the first clamping jaw 322 and the second clamping jaw 324. The number of the first clamping jaw 322 and the second clamping jaw 324 can be one or more, for example, the first clamping jaw 322 can be two, and the second clamping jaw 324 can be one, and the two first clamping jaws 322 and the second clamping jaw 324 can be located at three vertices of a triangle, so as to uniformly disperse stress, and make the connection of the insulating buckle 3 with the insulating support 2 more stable and reliable.

[0061] In some embodiments of the utility model, referring to Figure Figures 5-11 As shown in the figure, the second limiting component 33 comprises a third connecting piece 331, a third clamping jaw 332, a fourth connecting piece 333 and a fourth clamping jaw 334, the third connecting piece 331 is connected with the first connecting piece 321, the third connecting piece 331 is arranged in the assembly groove 21 and abuts against the side wall on one side of the assembly groove 21, the third clamping jaw 332 is connected with the third connecting piece 331, the third clamping jaw 332 abuts against the bottom surface of the insulating support 2, the fourth connecting piece 333 is connected with the second connecting piece 323, the fourth connecting piece 333 is arranged in the assembly groove 21 and abuts against the side wall on the other side of the assembly groove 21, the fourth clamping jaw 334 is connected with the fourth connecting piece 333, and the fourth clamping jaw 334 abuts against the bottom surface of the insulating support 2.

[0062] Specifically, the third connecting piece 331 and the fourth connecting piece 333 can be a structure with elastic wall, which has a certain deformation ability in the assembly process and can more easily adapt to the shape of the assembly groove 21. The third connecting piece 331 is connected with the first connecting piece 321, and the third connecting piece 331 is arranged in the assembly groove 21 and abuts against the side wall on one side of the assembly groove 21. The fourth connecting piece 333 is connected with the second connecting piece 323, and the fourth connecting piece 333 is arranged in the assembly groove 21 and abuts against the side wall on the other side of the assembly groove 21. When the insulation buckle 3 is assembled into the assembly groove 21, under the action of the inner wall of the assembly groove 21, the third connecting piece 331 and the fourth connecting piece 333 are extruded and the distance between them is reduced. The elastic force of the outward expansion of the third connecting piece 331 and the fourth connecting piece 333 can make the third connecting piece 331 and the fourth connecting piece 333 tightly abut against the side walls on both sides of the assembly groove 21, so that the side walls on both sides of the assembly groove 21 can form an interference fit with the insulation buckle 3 in the left-right direction, so as to limit the left-right shaking of the insulation buckle 3, and enhance the stability of the connection between the insulation buckle 3 and the insulation support 2 in the left-right direction.

[0063] The third clamping jaw 332 and the fourth clamping jaw 334 can be a barb structure. The third clamping jaw 332 is connected with the third connecting piece 331, and the third clamping jaw 332 abuts against the bottom surface of the insulation support 2. The fourth clamping jaw 334 is connected with the fourth connecting piece 333, and the fourth clamping jaw 334 abuts against the bottom surface of the insulation support 2. At the same time, the first clamping jaw 322 and the second clamping jaw 324 also abut against the top surface of the insulation support 2, so as to limit the up-down shaking of the insulation buckle 3 and ensure the stability of the connection between the insulation buckle 3 and the insulation support 2 in the up-down direction. Among them, the number of the third connecting piece 331 and the third clamping jaw 332 can be one or more, and the number of the fourth connecting piece 333 and the fourth clamping jaw 334 can be one or more. For example, the third connecting piece 331 and the third clamping jaw 332 can be one, and the fourth connecting piece 333 and the fourth clamping jaw 334 can be two. One third clamping jaw 332 and two fourth clamping jaws 334 can be located at the three vertices of a triangle. In the projection of the insulation buckle 3 in the up-down direction, the third clamping jaw 332 can be located between the two first clamping jaws 322, and the second clamping jaw 324 can be located between the two fourth clamping jaws 334. That is, the force points of the two first clamping jaws 322 and the second clamping jaw 324 on the top surface of the insulation support 2 are the three vertices of a triangle, and the force points of the third clamping jaw 332 and the two fourth clamping jaws 334 on the bottom surface of the insulation support 2 are the three vertices of an inverted triangle. Therefore, in the case of using a smaller number of first to fourth clamping jaws, the stability of the assembly of the insulation buckle 3 and the insulation support 2 can be further improved.

[0064] It should be noted that the above description is made with reference to Figure 12As shown, in the width direction of the partition plate 31, the length of the extension part of the third claw 332 and the fourth claw 334 is L1, and the distance between the third connecting piece 331 and the fourth connecting piece 333 and the corresponding partition plate 31 is L2, which satisfies the relationship: L2≥L1, so that when the insulation buckle 3 is assembled into the assembly groove 21, the third connecting piece 331 and the fourth connecting piece 333 have sufficient deformation space and can be smoothly assembled into the assembly groove 21, avoiding interference between the third connecting piece 331 and the fourth connecting piece 333 and the corresponding partition plate 31.

[0065] It should be noted that, referring to Figure 11 As shown, the assembly groove 21 can be a trapezoidal groove, and the assembly groove 21 can be a trapezoidal groove that is wide at the top and narrow at the bottom, so that the insulation buckle 3 is inserted into the assembly groove 21 from top to bottom, and the inclined side walls of the assembly groove 21 can provide assembly guidance for the second limiting assembly 33, so that the second limiting assembly 33 can be smoothly assembled into the assembly groove 21, reducing the assembly time cost and improving the assembly of the insulation support 2.

[0066] In some embodiments of the present application, referring to Figure 3 , Figure 9 and Figure 11 As shown, the top surface of the insulation support 2 is provided with a first limiting protrusion 22 and a second limiting protrusion 23, and in the width direction of the partition plate 31, the first claw 322 and the second claw 324 are located between the first limiting protrusion 22 and the second limiting protrusion 23, and the first claw 322 and the first limiting protrusion 22 are in clearance fit, and the second claw 324 and the second limiting protrusion 23 are in clearance fit.

[0067] Specifically, the first limiting protrusion 22 and the second limiting protrusion 23 can be strip-shaped protrusions, and in the up-down direction, the height of the first limiting protrusion 22 and the second limiting protrusion 23 can be 1mm. In the left-right direction, the first claw 322 and the first limiting protrusion 22 are in clearance fit, and the second claw 324 and the second limiting protrusion 23 are in clearance fit, so as to facilitate the assembly of the insulation buckle 3 and avoid interference between the insulation buckle 3 and the first limiting protrusion 22 and the second limiting protrusion 23 during assembly. At the same time, the first limiting protrusion 22 can stop the first claw 322 on one side of the first claw 322, and the second limiting protrusion 23 can stop the second claw 324 on one side of the second claw 324, so as to form a mounting positioning effect, ensure the installation precision of the insulation buckle 3, and also avoid large shaking of the insulation buckle 3 in the left-right direction, thereby reducing the risk of damage to the insulation buckle 3.

[0068] In some embodiments of the present application, referring to Figures 7-9 As shown, the insulation buckle 3 further comprises a connecting arm 37, and at least one of the partition plate 31, the first limiting assembly 32 and the second limiting assembly 33 is connected with the connecting arm 37, and the connecting arm 37 is formed with a wire harness guide groove 371.

[0069] Specifically, at least one of the partition plate 31, the first limiting assembly 32 and the second limiting assembly 33 of the insulation buckle 3 is connected with the connecting arm 37, so that the insulation buckle 3 forms an integral piece, facilitating the assembly and use of the insulation buckle 3. The connecting arm 37 is formed with a wire harness guide groove 371 for fixing the wire harness of the stator 100 and controlling the running direction of the wire harness. The wire harness can be loaded into the wire harness guide groove 371 in the radial direction of the wire harness guide groove 371 through the opening of the wire harness guide groove 371, and the wire harness can be limited and matched with the wire harness guide groove 371. The wire harness and the connecting arm 37 can be tied together through the tying rope 302. The setting position of the connecting arm 37 on the insulation buckle 3 is flexible, and a larger operation space can be reserved for the tying rope 302, so as to reduce the tying difficulty of the tying rope 302 and improve the assembly efficiency.

[0070] Referring to Figures 1-3 and Figure 9 It is shown that the wire harness of the stator 100 can be a temperature sensor wire harness 301 connected with a temperature sensor 30. The conductive assembly 1 has a temperature detection connector 113, and the temperature sensor 30 can be inserted into the temperature detection connector 113 to detect the temperature of the conductive assembly 1. The temperature sensor wire harness 301 can be limited in the wire harness guide groove 371 to prevent displacement of the temperature sensor wire harness 301 due to vibration.

[0071] In some embodiments of the utility model, referring to Figures 5-9 It is shown that the connecting arm 37 has a stop flange 372, and the extension direction of the stop flange 372 is parallel to the extension direction of the wire harness guide groove 371.

[0072] Specifically, the connecting arm 37 has a stop flange 372, and the extension direction of the stop flange 372 is parallel to the extension direction of the wire harness guide groove 371. The stop flange 372 can be used to limit the tying rope 302 of the wire harness (such as the temperature sensor wire harness 301) of the stator 100, preventing the tying rope 302 from falling off the connecting arm 37, and effectively avoiding the wire harness from being pulled out of the wire harness guide groove 371 due to the falling off of the tying rope 302.

[0073] In some embodiments of the utility model, the outer surface of the insulation support 2 is formed with a concave-convex pattern structure.

[0074] Specifically, after the welding of the stator 100 and the busbar 10 is completed, the welding points need to be coated with insulating powder (such as epoxy powder), and after curing, an insulating layer is formed to further insulate the welding points and the surrounding materials, prevent the occurrence of creeping phenomenon near the welding points, and ensure the stable operation of the stator 100. The insulating powder is usually also bonded to the outer surface of the insulating support 2. The outer surface of the insulating support 2 is provided with a concave-convex pattern structure, which can be an electric spark pattern. The pattern structure can increase the surface roughness of the outer surface of the insulating support 2, increase the contact area between the insulating powder and the outer surface of the insulating support 2, further increase the bonding force between the insulating powder and the insulating support 2, effectively reduce the occurrence of the insulating powder coating falling off during the vibration test or the operation of the motor, avoid the influence of the falling coating on the operation of the motor, protect the cleanliness of the internal environment of the motor, and improve the safety of the operation of the motor.

[0075] In some embodiments of the utility model, the assembly method of the stator 100 comprises:

[0076] Step S1, assemble the busbar 10 at the end of the stator core 40, and weld the winding lead-out wire 20 and the pin 112 on the busbar 10.

[0077] Specifically, as shown in Figure 1 After the conventional welding points on the stator 100 are welded, the busbar 10 is assembled at the end of the stator core 40, and each pin 112 is in contact with the corresponding winding lead-out wire 20, and then the pin 112 and the corresponding winding lead-out wire 20 are welded by a welding device to form an electrical connection structure.

[0078] Step S2, install the insulating buckle 3 in the assembly groove 21 of the insulating support 2.

[0079] Specifically, the insulating support 2 can be provided with three assembly grooves 21, and the three insulating buckles 3 are installed in the corresponding assembly grooves 21 in sequence, so as to ensure that the first limiting component 32 and the second limiting component 33 of the insulating buckle 3 are accurately limited and matched with the insulating support 2.

[0080] Step S3, coat the epoxy powder on the end of the stator 100.

[0081] Specifically, the entire end of the stator 100 is coated with epoxy powder to ensure that the coated epoxy powder covers the welding points of the winding lead-out wire 20 and the pin 112.

[0082] Step S4, fix the temperature sensor 30.

[0083] Specifically, the temperature sensor 30 is plugged on the temperature detection joint 113 of the conductive assembly 1, and then the temperature sensor wire harness 301 is inserted into the wire harness guide groove 371 of the insulating buckle 3 along the radial direction, and finally the wire harness is firmly bound by using the binding wire.

[0084] According to the busbar 10 provided by the embodiment of the utility model, by installing the insulating buckle 3 in the assembly groove 21 of the busbar 10 insulating support 2, the adjacent pin 112 and winding lead-out wire 20 are separated by the partition plate 31 of the insulating buckle 3, thereby increasing the creepage distance between the electric connection structures in the assembly groove 21, effectively improving the insulation performance of the busbar 10, further enhancing the stability of motor operation, and optimizing the fixing mode of the temperature sensor wire harness 301, avoiding the safety hazard of the motor caused by the loosening or falling of the temperature sensor wire harness 301 due to shaking, and guaranteeing the stability of motor operation. The overall structure of the busbar 10 is compact, and occupies a small space in the axial direction of the stator, which is conducive to reducing the overall size of the stator. In addition, the uneven pattern structure formed on the surface of the busbar 10 can increase the adhesion between the insulating powder coating and the surface of the busbar 10, so that the insulating powder coating is not easy to fall off during motor operation, effectively improving the safety of motor operation.

[0085] According to the stator 100 of another aspect embodiment of the utility model, the busbar 10 of the above embodiment is included, and has the same beneficial effects as the above busbar 10, which will not be described here.

[0086] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0087] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A busbar, characterized in that The busbar is used for a stator, and the busbar comprises: a conductive assembly (1) having a plurality of outgoing heads (111) adapted to be electrically connected with power supply wires of the stator and a plurality of pins (112) adapted to be electrically connected with winding outgoing wires (20) of the stator; an insulating support (2) to which the conductive assembly (1) is fixed, the insulating support (2) having an assembly groove (21) in which at least two pins (112) of the plurality of pins (112) are located; an insulating buckle (3) mounted on the insulating support (2) and used for spacing any two adjacent pins (112) in the assembly groove (21) and spacing any two adjacent winding outgoing wires (20) in the assembly groove (21).

2. The busbar of claim 1, wherein The insulating buckle (3) comprises: a plurality of partitions (31) arranged at intervals, at least part of each partition (31) being located in the assembly groove (21); a first limiting assembly (32) connected with each partition (31) and abutting against a top surface of the insulating support (2); a second limiting assembly (33) connected with the first limiting assembly (32) or at least one partition (31) and abutting against a bottom surface of the insulating support (2).

3. The busbar of claim 2, wherein, The insulating buckle (3) further comprises a connecting plate (34) connected with an end of at least one partition (31) in the width direction.

4. The busbar of claim 2, wherein, The first limiting assembly (32) comprises: a first connecting piece (321) connected with one end of each partition (31) in the width direction; a first clamping jaw (322) connected with the first connecting piece (321) and abutting against the top surface of the insulating support (2); a second connecting piece (323) connected with the other end of each partition (31) in the width direction; a second clamping jaw (324) connected with the second connecting piece (323) and abutting against the top surface of the insulating support (2).

5. The busbar of claim 4, wherein, The second limiting assembly (33) comprises: a third connecting piece (331) connected with the first connecting piece (321), the third connecting piece (331) penetrating the assembly groove (21) and abutting against a side wall of one side of the assembly groove (21); a third clamping jaw (332) connected with the third connecting piece (331) and abutting against the bottom surface of the insulating support (2). A fourth connecting piece (333) is connected with the second connecting piece (323), and the fourth connecting piece (333) is arranged in the assembly groove (21) and abuts against the side wall on the other side of the assembly groove (21); A fourth clamping jaw (334) is connected with the fourth connecting piece (333), and the fourth clamping jaw (334) abuts against the bottom surface of the insulation support (2).

6. The busbar of claim 4, wherein, The top surface of the insulation support (2) is provided with a first limiting protrusion (22) and a second limiting protrusion (23), and the first clamping jaw (322) and the second clamping jaw (324) are located between the first limiting protrusion (22) and the second limiting protrusion (23) in the width direction of the partition plate (31), and the first clamping jaw (322) is in clearance fit with the first limiting protrusion (22), and the second clamping jaw (324) is in clearance fit with the second limiting protrusion (23).

7. The busbar of claim 2, wherein, The insulation buckle (3) further comprises a connecting arm (37), and at least one of the partition plate (31), the first limiting assembly (32) and the second limiting assembly (33) is connected with the connecting arm (37), and the connecting arm (37) is formed with a wire harness guide groove (371).

8. The busbar of claim 7, wherein, The connecting arm (37) has a stop flange (372), and the extension direction of the stop flange (372) is parallel to the extension direction of the wire harness guide groove (371).

9. The busbar of any one of claims 1-8, wherein, The outer surface of the insulation support (2) is formed with a concave-convex pattern structure.

10. A stator characterized by, The busbar comprises any one of the busbars according to claims 1-9. The busbar comprises any one of the busbars according to claims 1-9.

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