Slip ring assembly structure and motor

Abstract

The invention provides a collector ring assembly structure and a motor, and belongs to the technical field of motors, and the collector ring assembly structure comprises a collector ring insulating shell, a glue sealing block and a three-phase copper bar. The lower end of the collector ring insulating shell is provided with an insertion part which is inserted in an assembly gap of a winding wire outlet end. The glue sealing block is arranged at the upper end of the collector ring insulating shell, and a glue sealing groove is formed in the glue sealing block; the three-phase copper bar is located in the collector ring insulation shell and provided with a pin end extending upwards to the outside of the collector ring insulation shell, and the pin end and the PIN of the winding wire outlet end are welded in the glue sealing groove and fixed through glue pouring. According to the collector ring assembly structure provided by the invention, the anti-cracking capability and the protection and insulation performance of the welding spots of the collector ring assembly are remarkably improved, the maintenance cost is reduced, the reliability and the stability of motor operation are improved, and the collector ring assembly structure has important significance for the development of the field of motor stator manufacturing.

Description

Technical Field

[0001] The present invention belongs to the technical field of motors, and more particularly, relates to a slip ring assembly structure and a motor. Background Art

[0002] In motor stator manufacturing, slip ring assemblies require welding multiple flat wire windings to lead terminals. Flat wire stator slip ring assemblies are widely used in current motor design, where current is transmitted by welding flat wires to slip rings.

[0003] Over extended use or in harsh environments, the solder joints on slip rings are prone to cracking. For example, the welds between flat wire layers are subject to the repeated effects of high-frequency vibration and assembly stress during motor operation, resulting in fatigue failure due to concentrated mechanical stress. Furthermore, traditional insulation binding or clip-on fastening methods are not suitable for multi-layer flat wire stacking. Due to insufficient protection, the solder joints are susceptible to corrosion from external friction or liquid infiltration. Repairing or replacing cracked solder joints is difficult, increasing maintenance costs and reducing motor reliability. Summary of the Invention

[0004] The purpose of the present invention is to provide a slip ring assembly structure, aiming to solve the problem that the welds on the slip ring are prone to cracking, which makes it difficult to maintain or replace the cracked welds, increases maintenance costs, and reduces the reliability of motor operation.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a slip ring assembly structure, comprising: A slip ring insulating shell, wherein a plug-in portion is provided at the lower end of the slip ring insulating shell, and the plug-in portion is inserted into the assembly gap of the winding outlet end; A sealing block, the sealing block being arranged at the upper end of the slip ring insulating shell, and having a sealing groove formed on the sealing block; A three-phase copper busbar is located inside the slip ring insulation shell. The three-phase copper busbar has a pin end extending upward to the outside of the slip ring insulation shell. The pin end and the PIN pin of the winding outlet end are welded and fixed with glue in the sealing groove.

[0006] In one possible implementation, the plug-in portion is circumferentially wrapped with a filler, which fits or bonds to the winding hairpins circumferentially along the assembly gap. The filler, inserted into the assembly gap along with the plug-in portion, fits or bonds to the winding hairpins, providing stable axial support for the windings. This significantly dissipates the effects of high-frequency vibration and assembly stress on the welds during motor operation, preventing fatigue cracking in the welds due to stress concentration.

[0007] In a possible implementation, the plug-in portion includes: A plurality of radial insertion blocks are fixed to the bottom of the slip ring insulation shell, and the radial insertion blocks are inserted into the gap between two radially adjacent groups of winding hairpins at the winding outlet end; The circumferential connecting block is connected between two adjacent radial insertion blocks, and the circumferential connecting block is inserted into any gap of the same group of radial winding hairpins.

[0008] The circumferential connection stability between the slip ring assembly and the winding is strengthened, and a mesh support structure is formed between the windings to evenly disperse the high-frequency vibration and assembly stress generated during motor operation, avoiding stress concentration at the weld point and significantly reducing the risk of weld fatigue cracking.

[0009] In one possible implementation, the radial insert blocks have a deformable hole at their bottoms, and the circumferential connecting block is connected midway between the two radial insert blocks. This deformable hole reduces the weight of the plug-in section, helping to reduce the overall weight of the motor and meet lightweight design requirements. The deformable hole allows the radial insert blocks to elastically deform, adaptively adjusting their fit with the winding hairpin, thereby ensuring a tight fit between the plug-in section and the assembly gap.

[0010] In one possible implementation, the lower end of the sealing block is provided with several insertion blocks, and the upper end of the slip ring insulating shell is provided with several slots, into which the insertion blocks are inserted in a one-to-one correspondence. This creates a precise and secure connection between the sealing block and the slip ring insulating shell, effectively preventing the sealing block from loosening or shifting during motor operation, thereby ensuring the stability of the pin ends and PIN pin solder joints within the sealing slots.

[0011] In one possible implementation, the upper end surface of the sealing block is provided with a plurality of weight-reducing grooves, each located between two adjacent sealing grooves. This reduces the weight of the sealing block, helps achieve the overall lightweighting goal of the motor, reduces material consumption, and lowers production costs.

[0012] In one possible implementation, the slip ring insulation shell is made of PPS / GF30 material, which can effectively resist high-frequency vibration and assembly stress during motor operation, reduce additional stress on solder joints due to unstable external structure, and reduce the risk of solder joint fatigue cracking.

[0013] In one possible implementation, the three-phase copper busbar further includes an upwardly extending lead-out connection terminal, located on one side of the pin terminal. This terminal is used to electrically connect to the motor's lead-out terminal. This prevents concentrated stress on the pin terminal and PIN pin solder joints, and, in conjunction with the slip ring insulation housing and connector, resists high-frequency vibration and assembly stress, further enhancing solder joint stability.

[0014] In a possible implementation, the lead-out wire connection end includes: A connecting frame is provided with a self-clinching stud encased within the slip ring insulation housing. The self-clinching stud is electrically connected to the motor's lead terminal via a connecting bolt. This ensures a reliable electrical connection and evenly distributes stress during current transmission, preventing cracking in solder joints caused by the additional stress generated by current conduction.

[0015] The beneficial effect of the slip ring assembly structure provided by the present invention is that: compared with the existing technology, the plug-in portion provided at the lower end of the slip ring insulation shell can be tightly inserted into the assembly gap of the winding outlet end, effectively enhancing the connection stability between the slip ring assembly and the winding outlet end, reducing the relative displacement caused by vibration during motor operation, and reducing the mechanical stress on the solder joints, thereby avoiding fatigue failure of the solder joints due to mechanical stress concentration. The sealing groove provided on the sealing block is combined with the glue filling and fixing process. The sealing groove provides a precise positioning space for welding the pin end and the PIN pin of the winding outlet end, ensuring the accuracy of the welding position and improving the welding quality. In addition, the glue filling and fixing allows the solder joints to be wrapped with a high-strength colloid, forming a solid protective layer that can not only effectively resist external friction, but also prevent liquid infiltration and erosion of the solder joints. At the same time, the pin end and the PIN pin of the three-phase copper busbar are welded in the sealing groove and fixed with glue. Compared with the traditional connection method, this integrated structural design allows the solder joints and the slip ring assembly to form a whole, enhancing the stability of the solder joints and reducing the risk of solder joint cracking. If cracks occur in solder joints, due to the relatively regular structure of the merge ring assembly, the solder joints in the sealing groove can be directly reinforced with glue or partially replaced without the need for complex disassembly of the entire assembly. This greatly reduces the difficulty of maintenance, saves maintenance time and costs, and effectively ensures the reliability of motor operation.

[0016] The slip ring assembly structure provided by the present invention significantly improves the crack resistance and protective insulation performance of the slip ring assembly weld points, reduces maintenance costs, and improves the reliability and stability of motor operation, which is of great significance to the development of the motor stator manufacturing field.

[0017] The present invention also provides a motor comprising the slip ring assembly structure.

[0018] The motor provided by the present invention includes the above-mentioned slip ring assembly structure, and the plug-in portion of the slip ring assembly structure is inserted into the assembly gap of the winding outlet after being coated with paint, and the PIN pins of the winding outlet respectively pass through the slip ring insulation shell from bottom to top. The sealing block is inserted into the upper end of the slip ring insulation shell after being coated with paint, and the PIN pins of the winding outlet and the pin ends of the three-phase copper busbar all pass through the same sealing groove of the sealing block, and then the sealing groove is filled with sealing glue. Finally, the end of the electrical connection plate is placed on the assembly surface at the top of the raised structure, and the rivet studs are connected with connecting bolts. Since the motor provided by the present invention uses the above-mentioned slip ring assembly structure, it has the same beneficial effects as the slip ring assembly structure, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of the slip ring assembly structure provided by the present invention; Figure 2 A schematic structural diagram of the slip ring insulation shell provided by the present invention; Figure 3 A schematic structural diagram of the sealing block provided by the present invention; Figure 4 A schematic structural diagram of a three-phase copper busbar provided by the present invention; Figure 5 A three-dimensional diagram of the installation of the slip ring assembly structure provided by the present invention on a motor; Figure 6 for Figure 5 A partial enlarged view of the M in the middle; Figure 7 A top view of the installation of the slip ring assembly structure provided by the present invention on a motor; Figure 8 for Figure 7 Cross-sectional view along AA; Figure 9 for Figure 8 A local enlarged view of point N in the middle; Figure 10 for Figure 7 Cross-sectional view along BB; Figure 11 for Figure 10 A local enlarged view of point P in the middle; Figure 12 A side view of the installation of the slip ring assembly structure provided by the present invention on a motor; Figure 13 for Figure 12 Cross-sectional view along CC; Figure 14 for Figure 13 A partial enlarged view of the middle Q.

[0021] In the picture: 100, slip ring insulation shell; 110, plug-in portion; 111, radial insertion block; 112, circumferential connection block; 120, filling body; 130, deformation hole; 140, slot; 150, reinforcement rib; 160, threading hole; 170, avoidance notch; 180, raised structure; 181, raised edge; 182, anti-rotation gap; 200, sealing block; 210, sealing groove; 220, plug-in block; 230, weight reduction groove; 300, three-phase copper busbar; 310, pin end; 320, connecting frame; 321, pressure riveting stud; 400, winding outlet terminal; 410, PIN pin; 420, winding card. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Unless otherwise explicitly defined, the use of terms such as "first," "second," or "third," etc., are intended to distinguish different objects rather than to describe a specific order.

[0024] Unless otherwise expressly defined, directional words such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", "high", "low" and the like indicating directions or positional relationships are based on the directions and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, so they cannot be understood as limiting the specific scope of protection of the present invention.

[0025] See also Figures 1 to 14The slip ring assembly structure provided by the present invention is now described. In modern motor manufacturing, slip ring assemblies are key components for achieving electrical connections within motors. The rationality and reliability of their structural design directly impact the overall performance and service life of the motor. The slip ring assembly structure proposed in this invention addresses the issues of insufficient connection stability, prone to cracking solder joints, and difficult maintenance found in traditional structures through comprehensive and in-depth optimization. This design aims to bring new technological breakthroughs to the field of motor stator manufacturing.

[0026] A slip ring assembly structure includes a slip ring insulation housing 100, a sealing block 200, and a three-phase copper busbar 300. The slip ring insulation housing 100 has a plug-in portion 110 at its lower end, which is inserted into the assembly gap of the winding outlet terminal 400. The sealing block 200 is disposed at its upper end and has a sealing groove 210 formed therein. The three-phase copper busbar 300 is located within the slip ring insulation housing 100 and has pin ends 310 extending upward to the exterior of the slip ring insulation housing 100. The pin ends 310 and the PIN pins 410 of the winding outlet terminal 400 are welded together within the sealing groove 210 and secured by glue.

[0027] The present invention provides a slip ring assembly structure. Compared with the prior art, the plug-in portion 110 provided at the lower end of the slip ring insulating shell 100 can be tightly inserted into the assembly gap of the winding outlet terminal 400, effectively enhancing the connection stability between the slip ring assembly and the winding outlet terminal 400, reducing the relative displacement caused by vibration during motor operation, and reducing the mechanical stress on the solder joints, thereby avoiding fatigue failure of the solder joints due to mechanical stress concentration. The sealing groove 210 provided on the sealing block 200 is combined with the glue filling and fixing process. The sealing groove 210 provides a precise positioning space for welding the pin end 310 and the PIN foot 410 of the winding outlet terminal 400, ensuring the accuracy of the welding position and improving the welding quality. In addition, the glue filling and fixing allows the solder joints to be wrapped by a high-strength colloid to form a solid protective layer, which can not only effectively resist external friction, but also prevent liquid infiltration and erosion of the solder joints. At the same time, the pin ends 310 and PIN pins 410 of the three-phase copper busbar 300 are welded and secured with glue within the sealing groove 210. Compared to traditional connection methods, this integrated structural design allows the solder joints and the slip ring assembly to form a single unit, enhancing the stability of the solder joints and reducing the risk of solder cracking. If a solder joint cracks, the relatively regular structure of the slip ring assembly allows for direct glue reinforcement or partial replacement of the solder joints within the sealing groove 210, eliminating the need for complex disassembly of the entire assembly. This significantly reduces maintenance effort, saves time and costs, and effectively ensures the reliability of the motor operation.

[0028] The slip ring assembly structure provided by the present invention significantly improves the crack resistance and protective insulation performance of the slip ring assembly weld points, reduces maintenance costs, and improves the reliability and stability of motor operation, which is of great significance to the development of the motor stator manufacturing field.

[0029] Among them, the slip ring insulation shell 100 is an arc-shaped structure, which fully considers various factors such as the spatial layout inside the motor and electromagnetic performance. The inner side of the upper end of the slip ring insulation shell 100 is integrally formed with a reinforcing rib 150, and a plurality of through holes are spaced apart on the outer side thereof. The above-mentioned plurality of through holes are arranged one-to-one on the outer side of the pin end 310, and the plurality of PIN pins 410 of the winding output end 400 pass through the plurality of through holes one-to-one. Correspondingly, the sealing groove 210 on the sealing block 200 is a through groove structure. A PIN pin 410 and a pin end 310 are inserted into the corresponding sealing groove 210 from bottom to top. The top of the PIN pin 410 and the pin end 310 in the same sealing groove 210 is lower than the top of the sealing groove 210. Therefore, after the sealing groove 210 is filled with glue, the PIN pin 410 and the pin end 310 inside it can be completely wrapped to form a complete protection system.

[0030] In addition, the upper surface of the slip-ring insulating housing 100 is integrally provided with a threading hole 160, located at one end of the reinforcing rib 150. This hole facilitates the threading of the NTC (negative temperature coefficient thermistor) wiring, making NTC wiring more convenient and organized. A relief notch 170 is provided on the outer side of the slip-ring insulating housing 100, corresponding to the location of the threading hole 160. This notch facilitates proper bending of the NTC wiring harness, ensuring a smoother and more natural wiring path and avoiding stress concentration caused by excessive bending or twisting.

[0031] The three-phase copper bar 300 includes a W-phase copper bar, a V-phase copper bar, and a U-phase copper bar. Each slip ring insulating shell 100 encloses a group of three-phase copper bars 300, that is, one W-phase copper bar, one V-phase copper bar, and one U-phase copper bar are enclosed at intervals. The number of pin ends 310 on the same three-phase copper bar 300 is multiple, and they are all arranged at equal intervals on the outside of the three-phase copper bar 300.

[0032] See also Figure 14The plug-in part 110 is circumferentially wrapped with a filler 120, and the filler 120 is fitted or bonded to the winding hairpin 420 in the circumferential direction of the assembly gap. The newly added filler 120 further strengthens the protection of the solder joints. The filler 120 circumferentially wrapped around the plug-in part 110 forms a tight integral structure with the winding hairpin 420 by fitting or bonding to the winding hairpin 420 in the circumferential direction of the assembly gap. The filler 120 is inserted into the assembly gap along with the plug-in part 110. After fitting or bonding to the winding hairpin 420, it provides stable support for the winding in the axial direction, greatly dispersing the effects of high-frequency vibration and assembly stress on the solder joints during motor operation, and avoiding fatigue cracking of the solder joints due to stress concentration.

[0033] Furthermore, the filler 120 is coated around the circumference of the plug-in portion 110 using a lacquer coating. Once the lacquer cures, the filler 120 forms. This filler 120 exhibits excellent insulation and mechanical strength, preventing both external electrical interference and damage to the welds from external friction, providing an additional protective barrier. Furthermore, the bonding or lamination of the filler 120 with the winding hairpin 420 further strengthens the connection between the slip-ring assembly and the winding. If a weld problem requires maintenance, the overall structural stability allows for more precise access without the increased difficulty of repairs due to looseness, effectively reducing maintenance costs and improving motor reliability. The filler 120 exhibits a certain degree of elasticity, absorbing and buffering stress generated by vibration and impact during motor operation, preventing stress concentration from damaging the welds and connections. This further enhances the stability and reliability of the connection between the slip-ring assembly and the winding, extending the service life of key motor components. Moreover, the elasticity of the filler 120 also enables it to adaptively adjust its own shape when facing the phenomenon of thermal expansion and contraction under different working conditions, always maintaining tight wrapping and protection of the welding points and connection parts, and preventing loose connections and degradation of electrical performance due to changes in thermal stress. During the frequent starting, stopping and load changes of the motor, the filler 120, with its good elastic properties, continues to safeguard the stable operation of the motor, effectively reducing the probability of failure and further improving the overall performance and operating efficiency of the motor. At the same time, the use of this elastic filler 120 also enables the motor to better adapt to various harsh conditions in complex industrial environments, such as humidity, dust, corrosive gases, etc., greatly broadening the application range of the motor. Even in these more harsh environments, the filler 120 can still play its multiple roles of insulation, protection and buffering, ensuring the safe and reliable operation of the motor, and providing strong guarantees for the continuity and stability of industrial production.

[0034] See also Figure 14The plug-in portion 110 includes a plurality of radial insert blocks 111 and a circumferential connecting block 112. The radial insert blocks 111 are fixed to the bottom of the slip ring insulation housing 100 and are inserted into the gaps between two radially adjacent groups of winding hairpins 420 at the winding outlet 400. The circumferential connecting block 112 is connected between two adjacent radial insert blocks 111 and is inserted into any gap between the same group of radial winding hairpins 420.

[0035] Several radial insert blocks 111 are fixed to the bottom of the slip ring insulation shell 100 and inserted into the gap between two radially adjacent groups of winding hairpins 420 at the winding outlet end 400. This radial insertion method enhances the radial connection tightness between the slip ring assembly and the winding, effectively limits the relative displacement between the two, and reduces the shear stress on the welds. The circumferential connection blocks 112 connect adjacent radial insert blocks 111 and are inserted into any gap between the same group of radial winding hairpins 420. The circumferential connection blocks 112 and the radial insert blocks 111 are integrally formed. This not only further strengthens the circumferential connection stability between the slip ring assembly and the winding, but also forms a mesh support structure between the windings, evenly dispersing the high-frequency vibration and assembly stress generated during motor operation, avoiding stress concentration at the weld points, and significantly reducing the risk of weld fatigue cracking.

[0036] Furthermore, the connector 110 structure creates a more stable overall structure for the slip-ring assembly and windings. This structure effectively resists external interference from friction or liquid erosion, providing a more reliable protective environment for the solder joints. When a solder joint problem requires maintenance, the stable connector 110 structure effectively maintains the overall assembly shape, allowing maintenance personnel to precisely locate and repair the solder joint, significantly reducing maintenance difficulty, time, and costs, and effectively ensuring the reliability and stability of the motor's operation.

[0037] See also Figure 14, a deformation hole 130 is provided at the bottom of the radial insertion block 111, and the circumferential connection block 112 is connected to the middle of the two radial insertion blocks 111. The deformation hole 130 is formed at the bottom of the radial insertion block 111. The deformation hole 130 reduces the weight of the plug-in part 110, helps to reduce the overall weight of the motor, meets the lightweight design requirements, and at the same time reduces material consumption and production costs. More importantly, these conformally formed deformation holes 130 give the plug-in part 110 the ability to elastically deform when inserted into the assembly gap. When the plug-in part 110 is inserted into the assembly gap of the winding outlet end 400, the deformation hole 130 enables the radial insertion block 111 to undergo elastic deformation, adaptively adjusting the degree of fit with the winding hairpin 420, thereby ensuring that the plug-in part 110 is tightly assembled with the assembly gap. This tight assembly effect enhances the connection stability between the slip ring assembly and the winding, effectively buffers the high-frequency vibration and assembly stress during motor operation, prevents stress from directly acting on the solder joints, and greatly reduces the risk of solder joints cracking due to uneven force.

[0038] Before the plug-in portion 110 is inserted into the assembly gap, a coating of paint is applied around the circumference of the plug-in portion 110. After the paint cures, a filler 120 is formed. Paint can also be applied to the gap between two adjacent sets of winding hairpins 420 on the plug-in portion 110, thereby strengthening the external structure of the plug-in portion 110 and further improving the connection stability between the slip-ring assembly and the winding.

[0039] See also Figures 1 to 3 The lower end of the sealing block 200 is provided with a plurality of plug-in blocks 220, and the upper end of the slip ring insulating shell 100 is provided with a plurality of slots 140. The plurality of plug-in blocks 220 are inserted into the plurality of slots 140 one by one, so that the sealing block 200 and the slip ring insulating shell 100 are accurately and firmly connected, which can effectively prevent the sealing block 200 from loosening or displacement during the operation of the motor, thereby ensuring the stability of the solder joint between the pin end 310 and the PIN foot 410 in the sealing groove 210.

[0040] See also Figure 3 , a number of weight-reducing grooves 230 are provided on the upper end surface of the sealing block 200, and the weight-reducing grooves 230 are located between two adjacent sealing grooves 210. The weight-reducing grooves 230 utilize space for lightweight design, which directly reduces the weight of the sealing block 200, helps to achieve the overall lightweight goal of the motor, reduces material consumption, and reduces production costs. The existence of the weight-reducing grooves 230 does not destroy the structural strength and stability of the sealing block 200. Its reasonable layout enables the sealing block 200 to have a certain elastic buffering capacity on the basis of maintaining the protection function of the welding point. During the operation of the motor, when it is subjected to vibration or external force impact, the weight-reducing grooves 230 can cause the sealing block 200 to undergo slight elastic deformation, effectively buffering stress, avoiding the stress from being directly transferred to the welding point, and reducing the risk of fatigue cracking of the welding point due to stress.

[0041] Specifically, the slip ring insulation housing 100 is made of PPS / GF30 material. PPS / GF30 is a composite material of polyphenylene sulfide (PPS) and 30% glass fiber (GF). It possesses excellent mechanical strength and rigidity, effectively resisting high-frequency vibration and assembly stress during motor operation. This ensures that the slip ring insulation housing 100 resists deformation under complex operating conditions, thereby firmly supporting the internal structure and reducing the additional stress on the solder joints caused by external structural instability, thereby lowering the risk of fatigue cracking at the solder joints. Furthermore, PPS / GF30 exhibits excellent heat resistance, maintaining stable physical and chemical properties in high-temperature environments. This prevents deformation or performance degradation of the insulation housing due to temperature fluctuations, ensures a stable environment around the solder joints, and prevents cracking due to high temperatures or thermal expansion and contraction.

[0042] See also Figure 1 and Figure 4 The three-phase copper busbar 300 also features an upwardly extending lead-out connection terminal, located on one side of the pin terminal 310. This terminal is used to electrically connect to the motor's lead-out terminal. When the motor is running, the lead-out connection terminal evenly distributes the electrical forces acting on the motor's lead-out terminal, preventing concentrated stress on the solder joints of the pin terminal 310 and the PIN pin 410. This, combined with the slip ring insulation housing 100 and the connector 110, further enhances the stability of the solder joints by resisting high-frequency vibration and assembly stress.

[0043] See also Figure 4 , the lead-out wire connection end includes a connecting frame 320. The connecting frame 320 is provided with a rivet stud 321 wrapped inside the slip ring insulation shell 100, and the rivet stud 321 is electrically connected to the lead-out end of the motor through a connecting bolt. Among them, the part of the slip ring insulation shell 100 that wraps the rivet stud 321 forms a raised structure 180, the top of the raised structure 180 forms an assembly surface, and the two sides of the assembly surface form raised edges 181. The end of the electrical connection plate is placed on the assembly surface and is stuck in the anti-rotation gap 182 between the two raised edges 181. The connecting bolt passes through the electrical connection plate of the lead-out end of the motor and is threadedly connected to the threaded hole of the rivet stud 321. When tightening the connecting bolt, the electrical connection plate is stuck in the anti-rotation gap 182 and will not rotate relative to each other, thereby avoiding additional torsional stress on the solder joint and the surrounding structure, and reducing the risk of solder joint loosening or cracking. The rivet studs 321 on the connecting frame 320 are embedded in the inside of the slip ring insulation shell 100, and are electrically connected to the motor lead-out terminal through connecting bolts. This connection method not only ensures the reliability of the electrical connection, but also evenly disperses the stress during current transmission, avoiding cracking of the solder joints due to the additional stress generated by current conduction.

[0044] Based on the same inventive concept, please refer to Figures 5 to 13The present invention also provides a motor, including the above-mentioned slip ring assembly structure, the plug-in portion 110 of the slip ring assembly structure is inserted into the assembly gap of the winding outlet 400 after being coated with paint, and the PIN pins 410 of the winding outlet 400 respectively pass through the slip ring insulation shell 100 from bottom to top. The sealing block 200 is inserted into the upper end of the slip ring insulation shell 100 after being coated with paint, and the PIN pins 410 of the winding outlet 400 and the pin ends 310 of the three-phase copper busbar 300 are both inserted from the same sealing groove 210 of the sealing block 200, and then the sealing groove 210 is filled with sealing glue. Finally, the end of the electrical connection plate is placed on the assembly surface at the top of the raised structure 180, and the rivet studs 321 are connected by connecting bolts. Since the motor provided by the present invention uses the above-mentioned slip ring assembly structure, it has the same beneficial effects as the slip ring assembly structure, which will not be repeated here.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A slip ring assembly structure, characterized in that: include: A slip ring insulating shell (100), wherein a plug-in portion (110) is provided at the lower end of the slip ring insulating shell (100), and the plug-in portion (110) is inserted into the assembly gap of the winding outlet terminal (400); A sealing block (200), the sealing block (200) being arranged at the upper end of the slip ring insulating shell (100), and a sealing groove (210) being provided on the sealing block (200); A three-phase copper busbar (300) is located inside the slip ring insulation shell (100), and the three-phase copper busbar (300) has a pin end (310) extending upward to the outside of the slip ring insulation shell (100), and the pin end (310) and the PIN pin (410) of the winding outlet end (400) are welded in the sealing groove (210) and fixed by glue injection.

2. The slip ring assembly structure according to claim 1, wherein: The plug-in portion (110) is circumferentially wrapped with a filling body (120), and the filling body (120) is fitted or bonded to the winding hairpin (420) in the circumferential direction of the assembly gap.

3. The slip ring assembly structure according to claim 2, wherein: The plug-in portion (110) comprises: A plurality of radial insertion blocks (111) are fixed on the bottom of the slip ring insulation shell (100), and the radial insertion blocks (111) are inserted into the gap between two radially adjacent groups of winding hairpins (420) at the winding outlet end (400); A circumferential connecting block (112) is connected between two adjacent radial insertion blocks (111), and the circumferential connecting block (112) is inserted into any gap of the same group of radial winding hairpins (420).

4. The slip ring assembly structure according to claim 3, wherein: A deformation hole (130) is provided at the bottom of the radial insertion block (111), and the circumferential connection block (112) is connected to the middle of the two radial insertion blocks (111).

5. The slip ring assembly structure according to claim 1, wherein: The lower end of the sealing block (200) is provided with a plurality of plug-in blocks (220), the upper end of the slip ring insulating shell (100) is provided with a plurality of slots (140), and the plurality of plug-in blocks (220) are inserted into the plurality of slots (140) in a one-to-one correspondence.

6. The slip ring assembly structure according to claim 1, wherein: The upper end surface of the sealing block (200) is provided with a plurality of weight-reducing grooves (230), and the weight-reducing grooves (230) are located between two adjacent sealing grooves (210).

7. The slip ring assembly structure according to claim 1, wherein: The three-phase copper busbar (300) further comprises an upwardly extending lead wire connection end, the lead wire connection end being correspondingly arranged on one side of the pin end (310), and the lead wire connection end being used for electrically connecting to the lead end of the motor.

8. The slip ring assembly structure according to claim 7, characterized in that: The lead-out wire connection end includes: A connecting frame (320) is provided with a pressure riveted stud (321) wrapped inside the slip ring insulation shell (100), and the pressure riveted stud (321) is electrically connected to the lead-out end of the motor via a connecting bolt.

9. The slip ring assembly structure according to claim 8, characterized in that: The collector ring insulating shell (100) has a raised structure (180) that wraps the riveted stud (321), and raised edges (181) are respectively provided on both sides of the top of the raised structure, and an anti-rotation gap (182) is formed between the two raised edges (181) for limiting the rotation of the lead-out terminal of the motor.

10. A motor, characterized in that: The invention comprises a slip ring assembly structure as described in any one of claims 1 to 9.

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