Collecting ring structure and motor

Abstract

The invention relates to the technical field of collector rings, and discloses a collector ring structure and a motor, the collector ring structure comprises a collector ring main body, the collector ring main body comprises a plurality of copper rings which are sequentially arranged at intervals along the axial direction, the inner side of each copper ring is integrally punched and molded with a lead, and the plurality of leads are arranged at intervals along the circumferential direction; one end of each lead extends out of the collector ring body and is folded outwards to form a horizontal part, the horizontal parts are arranged perpendicular to the axial direction, the horizontal parts are located on the same horizontal plane, the length size of the horizontal parts is larger than the size of the collector ring body in the axial direction, and the low-cost requirement, the low-noise requirement and the long-service-life requirement of a motor can be met at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of slip rings, and in particular to a slip ring structure and a motor. Background Art

[0002] With the development of modern science and technology, people have higher and higher requirements for low noise and long life of electronic products. At the same time, the cost of electronic products is also lowered. If the motor continues to use traditional commutators, the motor life and noise will not meet people's current requirements. Although the brushless motor can meet the requirements in terms of life and noise, the cost is too high. This forces motor manufacturers to develop new commutation components, such as collector rings, which are also called conductive rings, slip rings, collector rings, and shunt rings. It can be used in any electromechanical system that requires continuous rotation and needs to transmit power and signals from a fixed position to a rotating position. Collector rings can improve system performance, simplify system structure, and avoid wire sprains during rotation.

[0003] Common collector rings currently include multiple copper sheets arranged at intervals along the circumference, multiple leads, and a plastic body; there is a gap between two adjacent copper sheets to form an insulating groove; multiple leads are welded to multiple copper sheets one by one; the plastic body is formed on the inner side of the copper sheet by extrusion molding to fix the copper sheets together; the plastic body is connected as a whole but does not fill the aforementioned insulating groove, so during commutation, the carbon brush will pass through the insulating groove when it reaches another copper sheet from one copper sheet of the collector ring, and the carbon brush will deform into the insulating groove, and then collide with the edge of the copper sheet, generating commutation sparks and loud noise, and the service life is short. Therefore, there is an urgent need for a collector ring that can meet customers' low-cost requirements and low-noise and high-life requirements. Summary of the invention

[0004] In view of this, the present invention provides a collector ring structure and a motor to solve the problem of lack of a collector ring that can meet customers' requirements for low cost, low noise and high life.

[0005] In the first aspect, the present invention provides a collector ring structure, including a collector ring body, the collector ring body including a plurality of copper rings arranged in sequence along the axial direction, the inner side of each of the copper rings is integrally stamped with a lead, and the plurality of leads are arranged circumferentially at intervals; one end of the lead extends to the outside of the collector ring body and is folded outward to form a horizontal portion, the horizontal portion is arranged perpendicular to the axial direction, the plurality of horizontal portions are located on the same horizontal plane, and the length dimension of the horizontal portion is greater than the axial dimension of the collector ring body.

[0006] A collector ring structure according to the present invention has at least the following beneficial effects:

[0007] A lead is integrally stamped on each copper ring, and the outer surface of the copper ring that is in direct contact with the carbon brush is a continuous smooth surface without a groove, so that when the motor equipped with the present collector ring structure changes direction during operation, the carbon brush will not collide with the copper ring due to deformation in the groove, and no voltage drop will be generated when the carbon brush contacts the outer surface of the copper ring, thereby avoiding commutation sparks due to voltage shock that corrode the outer surface of the copper ring, reducing the wear on the outer surface of the copper ring to ensure the service life, and avoiding generating loud noise, thereby significantly improving the mechanical properties of the motor equipped with the present collector ring structure, and reducing the noise generated during the operation of the motor equipped with the present collector ring structure; and because the lead and the copper ring are integrally formed by stamping, the steps of separately punching the lead and welding the lead to the copper ring can be omitted, the process is simpler, and the processing cost is lower. At the same time, one end of the collector ring body extending through the lead is folded outward to form a horizontal portion. On the one hand, the multiple horizontal portions arranged at intervals along the circumferential direction ensure that two adjacent horizontal portions are separated from each other due to the gap space between adjacent horizontal portions, thereby avoiding short circuit during use. On the other hand, the horizontal portions arranged perpendicular to the axial direction can meet the needs of winding more coils of the motor, so that the collector ring body with the same outer diameter can achieve higher power, thereby improving the power of the motor equipped with the collector ring structure; it can also save the process of processing the bent hook, further simplify the preparation process, and reduce the processing cost.

[0008] In an optional embodiment, it also includes an insulating body with a central axis hole, the insulating body includes a first insulating part and a second insulating part that are integrally arranged, the first insulating part is arranged inside the collector ring body, and is used to fix the multiple copper rings together; the second insulating part is arranged outside the collector ring body, and is used to partially cover the multiple horizontal parts, and the projection of the collector ring body along the axial direction falls within the range of the second insulating part.

[0009] In an optional embodiment, the lead includes a connecting portion, one end of the connecting portion along the axial direction is connected to the horizontal portion, and the other end of the connecting portion is folded outward to form a mounting portion, and the mounting portion is connected to the inner wall of the copper ring.

[0010] In an optional implementation, a connection platform is protruding from the inner wall of the copper ring, and the first insulating portion covers the connection platform.

[0011] In an optional embodiment, the inner wall of each copper ring is provided with two rows of connecting platform assemblies spaced apart along the axial direction, and each row of the connecting platform assemblies includes a plurality of the connecting platforms spaced apart along the circumferential direction; the connecting platform located relatively above in the axial direction in each copper ring is provided as a first connecting platform, and the first connecting platform extends from the outer side to the inner side of the copper ring, and the first connecting platform is provided to be inclined downward.

[0012] In an optional embodiment, the connecting platform located relatively below in the axial direction inside each copper ring is configured as a second connecting platform, the second connecting platform extends from the outer side to the inner side of the copper ring, and the second connecting platform is configured to be inclined upward.

[0013] In an optional implementation, the insulating body is configured as a bakelite body.

[0014] In an optional embodiment, an insulating part is provided in the collector ring body at least corresponding to the position of the lead of the copper ring located relatively below in the axial direction, and a U-shaped groove is provided on the inner side of the insulating part for the connection part to be embedded.

[0015] In an optional implementation, three copper rings are provided.

[0016] In a second aspect, the present invention further provides a motor, comprising the slip ring structure provided in the first aspect.

[0017] Because the motor includes a slip ring structure, it has the same beneficial effects as the slip ring structure and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a collector ring structure according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the main body of the collector ring;

[0021] Figure 3 for Figure 2 Schematic diagram of the assembly structure of the copper ring and the lead wire located at the top;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the insulating body.

[0023] Description of reference numerals:

[0024] 100 - collector ring body, 110 - copper ring, 111 - first connecting platform, 112 - second connecting platform, 120 - lead wire, 121 - horizontal part, 122 - connecting part, 123 - mounting part, 130 - insulating member, 131 - U-shaped groove;

[0025] 200 - insulating body, 210 - central axis hole, 220 - first insulating part, 230 - second insulating part. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] In the description of this embodiment, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting this embodiment. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of this embodiment, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0029] There are two common types of collector rings in the related art, one of which includes a plurality of copper sheets arranged at intervals along the circumference, a plurality of leads, and a plastic body; a gap is provided between two adjacent copper sheets to form an insulating groove; a plurality of leads are welded to the plurality of copper sheets one by one; the plastic body is formed on the inner side of the copper sheet by extrusion molding to fix the copper sheets together; the plastic body is connected as a whole but does not fill the aforementioned insulating groove, so during commutation, the carbon brush will pass through the insulating groove in the process of reaching from one copper sheet of the collector ring to another copper sheet, and the carbon brush will deform into the insulating groove, and then collide with the edge of the copper sheet, generating commutation sparks and loud noise, and having a short service life. Another type of collector ring includes two copper rings arranged vertically at intervals, a long lead, a short lead, and a plastic body; the plastic body is arranged on the inner side of the copper ring to fix the two copper rings together; an insulating ring is arranged between the two copper rings to insulate and isolate the two copper rings; but each copper ring in this type of collector ring is formed by turning a copper tube, which has low processing efficiency and low yield. In addition, the long lead and the short lead are punched out of copper sheets, respectively, and the punched long lead and the short lead are respectively welded and connected to the two copper rings, which further increases the processing steps of the collector ring, reduces the production efficiency, and increases the processing cost. It is impossible to simultaneously meet the customer's low cost requirements and low noise and high life requirements for motors. In order to solve the above technical defects, a collector ring structure and a motor according to an embodiment of the present invention are provided.

[0030] Combine the following Figures 1 to 4 , describing an embodiment of the present invention.

[0031] According to a first aspect of an embodiment of the present invention, a collector ring structure is provided, including a collector ring body 100, the collector ring body 100 includes a plurality of copper rings 110 arranged in sequence along the axial direction, the inner side of each copper ring 110 is integrally stamped with a lead 120, and the plurality of leads 120 are arranged circumferentially and spaced apart; one end of the lead 120 extends to the outside of the collector ring body 100, and is folded outward to form a horizontal portion 121, the horizontal portion 121 is arranged perpendicular to the axial direction, and the plurality of horizontal portions 121 are located on the same horizontal plane. It can be understood that the axial direction mentioned herein refers to Figure 1 The axial direction refers to the axial direction of the copper ring 110, and the horizontal plane refers to a plane perpendicular to the axial direction.

[0032] The collector ring structure of the present embodiment is formed by integrally stamping a lead 120 on each copper ring 110, and the outer surface of the copper ring 110 that is in direct contact with the carbon brush is a continuous smooth surface without a groove, so that when the motor equipped with the collector ring structure of the present embodiment changes direction during operation, the carbon brush will not collide with the copper ring 110 due to deformation in the groove, and the contact between the carbon brush and the outer surface of the copper ring 110 will not generate a voltage drop, thereby avoiding the commutation spark caused by voltage shock to corrode the outer surface of the copper ring 110, so that the outer surface of the copper ring 110 is less worn to ensure the service life, and avoids generating loud noise, significantly improving the mechanical properties of the motor equipped with the collector ring structure of the present embodiment, and reducing the noise generated during the operation of the motor equipped with the collector ring structure of the present embodiment; and because the lead 120 and the copper ring 110 are integrally formed by stamping, the process of separately punching the lead 120 and welding the lead 120 to the copper ring 110 can be omitted, the process is simpler, and the processing cost is lower. At the same time, one end of the collector ring body 100 extending through the lead 120 is folded outward to form a horizontal portion 121. On the one hand, the multiple horizontal portions 121 arranged at intervals along the circumferential direction ensure that two adjacent horizontal portions 121 are separated from each other due to the gap space between adjacent horizontal portions, thereby avoiding short circuit during use. On the other hand, the horizontal portions 121 arranged perpendicular to the axial direction can meet the needs of winding more coils of the motor, so that the collector ring body 100 with the same outer diameter can achieve higher power, thereby improving the power of the motor equipped with the collector ring structure of this embodiment; it can also save the process of processing the bent hook, further simplify the preparation process, and reduce the processing cost.

[0033] It should be noted that the length of the horizontal portion 121 is greater than the axial dimension of the collector ring body 100, and is 1.5 to 2 times the axial dimension of the collector ring body 100, so that only one lead 120 needs to be integrally stamped on the inner side of each copper ring 110 to meet the number of windings of the motor coil, so that a motor with a smaller outer diameter equipped with the collector ring structure of this embodiment can cope with a larger torque; and because only one lead 120 needs to be set on the inner side of each copper ring 110, the processing technology of the collector ring structure of this embodiment is shorter and longer than that of conventional collector rings, and the cost is relatively lower.

[0034] It should be noted that, since there is no insulating groove on the surface of the copper ring 110, there is no need to perform a milling process during the preparation process to avoid burrs caused by milling, thereby avoiding the noise generated by the burrs during the operation of the motor equipped with the collector ring structure of this embodiment, and reducing the noise generated during the operation of the motor equipped with the collector ring structure of this embodiment.

[0035] Specifically, three copper rings 110 are provided, so that the three horizontal portions 121 are arranged 120° apart from each other in the circumferential direction, so as to better perform winding on the horizontal portions 121 .

[0036] like Figure 1 and Figure 4 As shown, in some embodiments, the collector ring structure further includes an insulating body 200 with a central axis hole 210, and the insulating body 200 includes a first insulating portion 220 and a second insulating portion 230 that are integrally arranged, wherein the first insulating portion 220 is arranged inside the collector ring body 100 and is used to fix the plurality of copper rings 110 together; the second insulating portion 230 is arranged outside the collector ring body 100 and is used to partially cover the plurality of horizontal portions 121, and the projection of the collector ring body 100 along the axial direction falls within the range of the second insulating portion 230. On the one hand, the plurality of horizontal portions 121 are partially covered by the second insulating portion 230 whose outer diameter is larger than the outer diameter of the collector ring body 100, so that the insulating body 200 covers and fixes the horizontal portions 121 as much as possible without affecting the number of coils wound on the horizontal portions 121, thereby improving the stability of the horizontal portions 121. On the other hand, the plurality of copper rings 110 are fixed together by the first insulating portion 220, and the first insulating portion 220 partially fills the gap space between two adjacent copper rings 110, thereby insulating and isolating the two adjacent copper rings 110 along the axial direction, thereby achieving the functions of fixing the plurality of copper rings 110 and insulating and isolating the two adjacent copper rings 110 along the axial direction, and there is no need to separately set an insulating ring between the two adjacent copper rings 110, thereby improving the processing efficiency of the collector ring structure of this embodiment and reducing the processing cost of the collector ring structure of this embodiment.

[0037] Specifically, the insulating body 200 is configured as a bakelite body. The insulating body 200 is made of bakelite and is arranged on the inner side of the collector ring body 100 in an extrusion molding manner, and extends to the outside of the collector ring body 100 to cover all horizontal parts 121. The strength of the bakelite material is greater than that of the plastic, so that cracking is not easy to occur when the insulating body 200 is interference fit with the rotor shaft through the central shaft hole 210.

[0038] like Figure 2 and Figure 3 As shown, in some embodiments, the lead 120 includes a connecting portion 122, one end of the connecting portion 122 along the axial direction is connected to the horizontal portion 121, and the other end of the connecting portion 122 is folded outward to form a mounting portion 123, and the mounting portion 123 is connected to the inner wall of the copper ring 110. Through the transition connection of the mounting portion 123, the distance between the connecting portion 122 and the inner wall of the copper ring 110 is increased, which can reduce the risk of short circuit caused by contact between the lead 120 and the copper ring 110; and facilitate the integral stamping of the lead 120 and the copper ring 110.

[0039] Specifically, a connection platform is protruded from the inner wall of the copper ring 110, and the first insulating portion 220 covers the connection platform. The first insulating portion 220 covers the connection platform to further increase the fastening connection area between the copper ring 110 and the insulating body 200.

[0040] like Figure 3 As shown, specifically, the inner wall of each copper ring 110 is provided with two rows of connecting platform assemblies at intervals along the axial direction, and each row of the connecting platform assemblies includes a plurality of the connecting platforms arranged at intervals along the circumferential direction; the connecting platform located relatively above the axial direction in each copper ring 110 is provided as a first connecting platform 111, and the first connecting platform 111 extends from the outer side to the inner side of the copper ring 110, and the first connecting platform 111 is arranged to be inclined downward; in the process of using bakelite as raw material and being arranged on the inner side of the collector ring body 100 in an extrusion molding manner to fill the through hole of the collector ring body 100 to form the first insulating part 220, the inclined first connecting platform 111 facilitates the injection molding melt to flow in the through hole of the collector ring body 100, ensuring that the entire through hole of the collector ring body 100 is filled to form the first insulating part 220, and the inclined first connecting platform 111 increases the contact area with the first insulating part 220, thereby ensuring that all copper rings 110 are firmly fixed together.

[0041] like Figure 2 and Figure 3 As shown, specifically, the connecting platform located relatively below in the axial direction in each of the copper rings 110 is set as a second connecting platform 112, the second connecting platform 112 extends from the outer side to the inner side of the copper ring 110, and the second connecting platform 112 is tilted upward; the tilted second connecting platform 112 facilitates the injection molding melt to flow in the through hole of the collector ring body 100 and increases the contact area with the first insulating part 220.

[0042] like Figure 2 and Figure 3As shown, in some embodiments, an insulating member 130 is provided in the collector ring body 100 at least corresponding to the position of the lead 120 of the copper ring 110 relatively below in the axial direction, and a U-shaped groove 131 is provided on the inner side of the insulating member 130, and the U-shaped groove 131 is used for the connection portion 122 to be embedded. Because the multiple copper rings 110 are arranged in sequence and spaced in the axial direction, the length of the lead 120 of the copper ring 110 integrally stamped and formed at the bottom is longer than the length of the lead 120 of the copper ring 110 integrally stamped and formed at the top, in order to avoid the longer lead 120 from contacting with the adjacent lead 120 or copper ring 110 due to large displacement during the process of extrusion molding to obtain the insulating body 200, causing a short circuit; in this embodiment, the connection portion 122 of the longer lead 120 is embedded in the corresponding U-shaped groove 131 for positioning, ensuring that the longer lead 120 is not easily displaced relative to the U-shaped groove 131 during the extrusion molding process to cause a contact short circuit. It should be noted that the lead 120 integrally stamped and formed on the top copper ring 110 is shorter in length and less likely to be displaced and cause a short circuit. In order to simplify the processing technology, the lead 120 integrally stamped and formed on the inner wall of the top copper ring 110 does not need to be embedded in the U-shaped groove 131 of the insulating part.

[0043] The method for preparing the collector ring structure of this embodiment includes the following steps:

[0044] Stamping: stamping the copper shell into three copper rings 110, and integrally stamping each copper ring 110 to obtain a lead 120, and folding the top end of each lead 120 outward to form a horizontal portion 121;

[0045] Degreasing and cleaning: degreasing and cleaning the copper ring 110 and the lead wire 120;

[0046] Drying: Drying the cleaned copper ring 110 and lead wire 120;

[0047] Insulation part molding: the insulation part 130 is injection molded with reference to the width and height of the connection part 122 of the lead 120, so that the height of the insulation part 130 is smaller than the height of the connection part 122, and the width of the U-shaped groove 131 is not less than the width of the connection part 122;

[0048] Semi-finished product assembly: the insulating member 130 is sleeved on the connecting portion 122 of the corresponding lead 120, and the three copper rings 110 are fixed along the axial direction at a preset interval to form the collector ring body 100;

[0049] Extrusion molding: Extruding the collector ring body 100 with bakelite as the raw material to form an insulating body 200 having a central axis hole 210;

[0050] Heat treatment: heat treatment is performed on the insulating body 200 to allow the bakelite material to fully cross-link and react, so as to remove moisture, gas, etc., release stress, and better ensure dimensional stability and electrical performance;

[0051] Finishing: finishing the lead 120;

[0052] Inner hole withstand voltage test: Conduct withstand voltage test on the collector ring structure to confirm whether the lead wire 120 contacts the adjacent copper ring 110 after deformation when the insulating body 200 is extruded, so as to avoid short circuit during use;

[0053] Appearance inspection: Check whether there are obvious defects in the appearance of the collector ring structure;

[0054] Packaging and shipment: The collector ring structures that have passed the inner hole pressure resistance inspection and the appearance inspection will be packaged and shipped.

[0055] Specifically, during the extrusion molding process, three feed ports that are equally spaced along the circumference are used to feed materials simultaneously, so as to better ensure the roundness of the extruded collector ring body 100 and better meet the dimensional stability.

[0056] According to the second aspect of the embodiment of the present invention, a motor is also provided, comprising the collector ring structure provided by the first aspect of the embodiment of the present invention. The collector ring structure of the motor of the present embodiment is formed by integrally stamping a lead 120 on each copper ring 110, and the outer surface of the copper ring 110 that directly contacts the carbon brush is a continuous smooth surface without a groove, so that when the motor of the present embodiment is in operation and switching, the carbon brush will not collide with the copper ring 110 due to deformation in the groove, and the contact between the carbon brush and the outer surface of the copper ring 110 will not generate a voltage drop, thereby avoiding the commutation spark caused by voltage shock to corrode the outer surface of the copper ring 110, so that the outer surface of the copper ring 110 is less worn to ensure the service life, and avoids generating a large noise, significantly improving the mechanical properties of the motor of the present embodiment, and reducing the noise generated during the operation of the motor of the present embodiment; and because the lead 120 and the copper ring 110 are integrally formed by stamping, the process of punching the lead 120 separately and welding the lead 120 to the copper ring 110 can be omitted in the process of preparing the collector ring structure of the motor of the present embodiment, so that the process is simpler and the processing cost is lower. At the same time, one end of the collector ring body 100 is extended through the lead 120 and folded outward to form a horizontal portion 121. On the one hand, the multiple horizontal portions 121 arranged at intervals along the circumferential direction ensure that two adjacent horizontal portions 121 are separated from each other due to the gap space between adjacent horizontal portions, thereby avoiding short circuit during use. On the other hand, the horizontal portions 121 arranged perpendicular to the axial direction can meet the needs of winding more coils of the motor, so that the collector ring body 100 with the same outer diameter can achieve higher power, thereby improving the power of the motor of this embodiment; it can also save the process of processing the bent hook, further simplify the preparation process, and reduce the processing cost.

[0057] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present invention.

Claims

1. A collector ring structure, characterized in that: The invention comprises a collector ring body (100), wherein the collector ring body (100) comprises a plurality of copper rings (110) arranged in sequence and spaced apart in the axial direction, wherein a lead wire (120) is integrally stamped and formed on the inner side of each copper ring (110), and the plurality of lead wires (120) are arranged spaced apart in the circumferential direction; one end of the lead wire (120) extends outside the collector ring body (100) and is folded outward to form a horizontal portion (121), wherein the horizontal portion (121) is arranged perpendicular to the axial direction, and the plurality of horizontal portions (121) are located on the same horizontal plane, and the length dimension of the horizontal portion (121) is greater than the axial dimension of the collector ring body (100).

2. A slip ring structure according to claim 1, characterized in that: It also includes an insulating body (200) with a central axis hole (210), the insulating body (200) including a first insulating portion (220) and a second insulating portion (230) which are integrally arranged, the first insulating portion (220) being arranged inside the collector ring body (100) and used to fix the plurality of copper rings (110) together; the second insulating portion (230) being arranged outside the collector ring body (100) and used to partially cover the plurality of horizontal portions (121), and the projection of the collector ring body (100) along the axial direction falls within the range of the second insulating portion (230).

3. A slip ring structure according to claim 1 or 2, characterized in that: The lead wire (120) comprises a connecting portion (122), one end of the connecting portion (122) along the axial direction is connected to the horizontal portion (121), and the other end of the connecting portion (122) is folded outward to form a mounting portion (123), and the mounting portion (123) is connected to the inner wall of the copper ring (110).

4. A slip ring structure according to claim 2, characterized in that: A connection platform is protruding from the inner wall of the copper ring (110), and the first insulating portion (220) covers the connection platform.

5. A slip ring structure according to claim 4, characterized in that: The inner wall of each copper ring (110) is provided with two rows of connection platform assemblies spaced apart in the axial direction, and each row of the connection platform assemblies comprises a plurality of connection platforms spaced apart in the circumferential direction; the connection platform located relatively above in the axial direction in each copper ring (110) is provided as a first connection platform (111), and the first connection platform (111) extends from the outer side to the inner side of the copper ring (110), and the first connection platform (111) is provided to be tilted downward.

6. A slip ring structure according to claim 5, characterized in that: The connecting platform located relatively downward along the axial direction inside each copper ring (110) is arranged as a second connecting platform (112), the second connecting platform (112) extends from the outer side to the inner side of the copper ring (110), and the second connecting platform (112) is arranged to be inclined upward.

7. A slip ring structure according to claim 2, characterized in that: The insulating body (200) is configured as a bakelite body.

8. A slip ring structure according to claim 3, characterized in that: An insulating member (130) is provided in the collector ring body (100) at least at a position corresponding to the lead wire (120) of the copper ring (110) located relatively downward in the axial direction, and a U-shaped groove (131) is provided on the inner side of the insulating member (130), and the U-shaped groove (131) is used for the connection part (122) to be embedded.

9. A slip ring structure according to claim 1, characterized in that: The copper rings (110) are provided in three numbers.

10. A motor, characterized in that: The slip ring structure comprises the slip ring structure as claimed in any one of claims 1 to 9.

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