Collecting ring structure

Abstract

The invention relates to a collector ring structure, and relates to the technical field of conductive slip rings, the collector ring structure comprises a sleeve fixedly sleeved on a rotor and a conductive ring fixedly sleeved on the outer side of the sleeve, the outer side of the conductive ring abuts against an electric brush, and the sleeve is also sleeved with a wiring ring. A plurality of wiring assemblies used for being connected with excitation wires are arranged on the wiring ring in the circumferential direction at equal intervals, a plurality of conductive electrode bases are installed on the side, close to the wiring ring, of the conductive ring in the circumferential direction at equal intervals, and the ends, close to the wiring ring, of the electrode bases are connected with electrode plates. The sides, away from the electrode holder, of the electrode plates abut against the access end of the wiring assembly. According to the collector ring, the overall size of the collector ring is reduced, and meanwhile, a plurality of electrodes connected with excitation wires on a rotor can be generated. By means of the design, more excitation magnetic fields can be generated on the rotor, more induction currents can be generated in unit time, and therefore the effect that the power output power of a power generation system is increased is achieved.

Description

Technical Field

[0001] The present application relates to the field of conductive slip ring technology, and in particular to a collector ring structure. Background Art

[0002] Slip ring, also known as conductive ring, slip ring, collector ring, collector ring, etc., is a device used to transmit power and signals from a fixed position to a rotating position while achieving continuous rotation in an electromechanical system. The slip ring is composed of a conductive metal ring or carbon brush, fixed on the rotating part, and in contact with a fixed carbon brush or contactor. Its main function is to improve system performance, simplify system structure, and avoid twisting of the wire during rotation.

[0003] When a larger current was initially required, people often increased the current carrying capacity of the electromechanical system by continuously adding magnetic poles and stator wires. However, this method would undoubtedly increase the size of the power generation system, making it large and bulky.

[0004] The emergence of the collector ring solves this problem well. It increases the electromagnetic induction by increasing the excitation magnetic field, thereby achieving efficient output of current. However, in order to enable the excitation system to generate more magnetic fields, the collector ring needs to provide more electrodes for the excitation wires to connect. Therefore, the size of the collector ring will be particularly large, making it very inconvenient to install and use, resulting in a waste of resources. Summary of the invention

[0005] In order to meet the requirement that the slip ring can have more electrodes so as to increase the number of excitation magnetic fields and generate more induced currents, while simplifying the structure of the slip ring, the present application provides a slip ring structure.

[0006] A collector ring structure provided in this application adopts the following technical solution:

[0007] A collector ring structure comprises a sleeve for fixedly sleeved on a rotor and a conductive ring fixedly sleeved on the outside of the sleeve, the outside of the conductive ring abuts against a brush, the sleeve is also sleeved with a wiring ring, a plurality of wiring assemblies for connecting excitation wires are arranged on the wiring ring at equal intervals along the circumferential direction, a plurality of conductive electrode seats are installed on the conductive ring at equal intervals along the circumferential direction on a side close to the wiring ring, an electrode plate is connected to an end of the electrode seat close to the wiring ring, and a plurality of electrode plates abut against access ends of the wiring assemblies on the sides away from the electrode seat.

[0008] Optionally, the wiring assembly includes a plurality of wiring posts that are evenly spaced along the circumferential direction and penetrate the wiring ring, and a compression spring fixedly connected to the wiring post on a side close to the conductive ring, the wiring post is fixedly connected to the excitation wire, and the compression spring is fixedly connected to a side close to the conductive ring with an abutment contact, and the abutment contact is tightly pressed against the electrode plate.

[0009] Optionally, the abutting contact point is made of a flexible conductive material whose contact area with the electrode plate can be changed by extrusion, and the wiring ring is provided with a plurality of wiring screw holes at equal intervals along the circumferential direction, and the wiring posts in the plurality of wiring assemblies are all threadedly connected to the wiring screw holes, and the wiring posts are always in full contact with the wiring ring.

[0010] Optionally, the abutting contact point is made of a flexible conductive material whose contact area with the electrode plate can be changed by extrusion, and an adjusting screw ring is fixedly connected to one end of the compression spring close to the wiring ring, and the adjusting screw ring is threadedly sleeved on the wiring post.

[0011] Optionally, the electrode plate includes an integrally connected central portion and an annular sleeve portion, the sleeve portion is detachably sleeved with an insulating sleeve, and the sleeve is threadedly connected to the electrode holder.

[0012] Optionally, edges of one side of several electrode plates close to the wiring ring are all rounded structures.

[0013] Optionally, a step is provided on the outer side of the sleeve, and the wiring ring is rotatably provided on the step. A positioning ring is integrally sleeved on the side of the wiring ring away from the conductive ring. A plurality of locking pins for limiting the rotation of the wiring ring are threaded through the positioning ring. A locking ring groove with anti-slip grooves on the bottom side is provided on the side of the wiring ring close to the positioning ring, and the locking pin abuts against the bottom side of the locking ring groove. The number of electrode plates is a multiple of the number of wiring components.

[0014] Optionally, the number of the electrode plates on the conductive ring is not less than 16.

[0015] Optionally, the conductive ring includes a rotating part fixedly mounted on the sleeve and a conductive part rotatably mounted outside the rotating part, a plurality of electrode seats are mounted on the rotating part, and a conductive medium is filled between the contact surfaces of the conductive part and the rotating part.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. The present application simplifies the structure of the collector ring, reduces the volume of the collector ring while ensuring that the collector ring can transmit large current, has higher practicality, and reduces the load consumption when the rotor rotates;

[0018] 2. The present application has multiple electrodes, which, when connected to the excitation wires on the rotor, can form more excitation magnetic fields on the rotor, thereby achieving higher power generation efficiency;

[0019] 3. The present application can quickly repair and replace easily worn electrodes and contact points during wiring, thereby increasing the overall service life of the collector ring and making the collector ring more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a first embodiment of a collector ring structure of the present application.

[0021] Figure 2 yes Figure 1 Magnified view at A in the middle.

[0022] Figure 3 This is an exploded view of the connection structure of an electrode plate and an electrode seat of a collector ring structure of the present application.

[0023] Figure 4 This is an exploded view of the overall structure of Example 1 of a collector ring structure of the present application.

[0024] Figure 5 This is an overall view of a terminal ring of a collector ring structure of the present application.

[0025] Figure 6 It is a schematic diagram of the overall structure of a second embodiment of a collector ring structure of the present application.

[0026] Figure 7 This is an overall structural view of the wiring assembly of the second embodiment of a collector ring structure of the present application.

[0027] Figure 8 It is a schematic diagram of the overall structure of a third embodiment of a collector ring structure of the present application.

[0028] Fig. 9 This is an exploded view of a conductive ring structure of a third embodiment of a collector ring structure of the present application.

[0029] Explanation of the reference numerals: 1. sleeve; 11. step; 2. conductive ring; 21. rotating part; 211. electrode seat; 212. electrode plate; 2121. central part; 2122. sleeve part; 213. ferrule; 22. conductive part; 3. wiring ring; 31. wiring screw hole; 32. locking ring groove; 321. anti-slip groove; 4. wiring assembly; 41. terminal; 42. compression spring; 43. abutment contact; 44. adjusting screw ring; 5. positioning ring; 51. locking pin. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-9This application is described in further detail.

[0031] The embodiment of the present application discloses a collector ring structure.

[0032] Embodiment 1

[0033] Reference Figure 1 A collector ring structure includes a sleeve 1 sleeved on the rotor of a power generation system and a conductive ring 2 fixedly sleeved on the outside of the sleeve 1. The sleeve 1 is fixedly connected to the rotor and is coaxial, and can rotate synchronously with the rotor. A wiring ring 3 is sleeved on the sleeve 1, and a plurality of wiring assemblies 4 are arranged at equal intervals along the circumferential direction on the wiring ring 3. The wiring assembly 4 is used to electrically connect with the wires in the excitation circuit on the rotor, transmit the positive and negative currents to the excitation circuit and form an excitation magnetic field. The conductive ring 2 is a circular ring structure made of a conductive material, the outer side of which abuts against the brush, and obtains current through brush conduction.

[0034] Reference Figure 2 A plurality of conductive electrode seats 211 are arranged on the conductive ring 2 at equal intervals along the circumferential direction on the side close to the wiring ring 3, and electrode plates 212 are installed on the plurality of electrode seats 211 on the side close to the wiring ring 3 to facilitate the connection between the electrode plate 212 and the access end on the wiring assembly 4, so as to transmit the electrical signal to the excitation circuit on the rotor.

[0035] Reference Figure 2 and Figure 3 Furthermore, the electrode plate 212 includes an integrally connected central portion 2121 and an annular sleeve portion 2122. An insulating sleeve 213 is detachably sleeved on the sleeve portion 2122. The sleeve 213 and the sleeve portion 2122 form a clamping structure and are threadedly connected to the electrode holder 211. When the electrode plate 212 is damaged, maintenance personnel can easily disassemble and replace it to ensure that the collector ring always has good conductivity. The electrode plate 212 is preferably made of graphite, because the melting point of graphite electrodes is very high and has good ablation resistance.

[0036] At the same time, in order to make the collector ring have better conductivity, it is preferred that the electrode plate 212 is a round pancake structure, and the bottom is completely in contact with the electrode seat 211. The edge of the electrode plate 212 near the wiring ring 3 is a rounded structure to avoid the tip discharge phenomenon at the top of the electrode plate 212 when transmitting a large current, thereby improving the safety of the collector ring during operation.

[0037] Preferably, the electrode holder 211 and the conductive ring 2 are both made of copper, because copper has good conductivity and is low in cost, and is suitable for mass production.

[0038] Reference Figure 4Furthermore, the wiring assembly 4 includes a plurality of wiring posts 41 that are equally spaced along the circumferential direction and penetrate the wiring ring 3, and a compression spring 42 that is fixedly connected to the wiring post 41 on the side close to the conductive ring 2. The end of the compression spring 42 that is away from the wiring post 41 is connected to an abutment contact 43, and the abutment contact 43 is tightly pressed against the electrode plate 212 under the elastic compression of the compression spring 42. The compression spring 42, the wiring post 41 and the abutment contact 43 are all made of conductive materials to enable rapid current conduction.

[0039] Reference Figure 4 Furthermore, the contact point 43 is made of a flexible conductive material with shape memory capability, which can change the contact area with the electrode plate 212 by squeezing. A plurality of wiring screw holes 31 for the wiring posts 41 to pass through are provided at equal intervals along the circumferential direction on the wiring ring 3. The wiring posts 41 are all corresponding to each other and are threadedly inserted into the plurality of wiring screw holes 31. The wiring posts 41 are always completely in contact with the inner side wall of the wiring screw hole 31 to avoid tip discharge at this position, which may cause the wiring posts 41 to overheat.

[0040] When the terminal 41 is rotated, the contact area between the abutting contact 43 and the electrode plate 212 can be adjusted by the elastic squeezing action of the compression spring 42, thereby changing the conductivity of the collector ring. This structure can facilitate the collector ring to adjust its conductivity when conducting currents of different intensities, thereby controlling the size of the magnetic field generated by the excitation current and expanding the current conduction value range applicable to the collector ring.

[0041] Reference Figure 4 and Figure 5 , a step 11 is integrally provided on the outer side of the sleeve 1, and the connecting ring 3 is rotatably provided on the step 11. A positioning ring 5 is integrally sleeved on the side of the connecting ring 3 away from the conductive ring 2 on the sleeve 1, and a plurality of locking pins 51 are threadedly penetrated on the positioning ring 5 at equal intervals along the circumferential direction. The bottoms of the plurality of locking pins 51 are all tightly pressed against the upper side of the connecting ring 3 to limit the free rotation of the connecting ring 3, thereby affecting the contact between the contact point 43 and the electrode plate 212.

[0042] Furthermore, a locking ring groove 32 with anti-slip grooves 321 at the bottom is formed on the upper side of the wiring ring 3, and the ends of the locking pins 51 are all pressed against the bottom of the locking ring groove 32 to achieve a better limiting effect.

[0043] In the present application, the number of electrode plates 212 on the conductive ring 2 is preferably not less than 16, and the number of electrode plates 212 is a multiple of the number of wiring assemblies 4, so that when the collector ring is actually used, the number of wiring assemblies 4 abutting against the electrode plates 212 can be increased or decreased at any time according to the wiring requirements of the rotor, thereby optimizing resource utilization and reducing the system operation load.

[0044] At the same time, this structure can also quickly replace the contact between different wiring assemblies 4 and the electrode plate 212 by rotating the wiring ring 3 when the electrode seat 211, the electrode plate 212 and the wiring assembly 4 fail, so that the collector ring can still be used in an emergency when it is damaged.

[0045] The implementation principle of a collector ring structure in the first embodiment of the present application is:

[0046] After the brush conducts the current to the conductive ring 2, the current is conducted to the abutting contact 43 abutting against the electrode plate 212 through a plurality of electrode seats 211 and electrode plates 212 located on the conductive ring 2. The abutting contact 43 is connected to the terminal 41 through the compression spring 42, and the terminal 41 is connected to the input end of the excitation circuit on the rotor, so that the current is smoothly conducted to the excitation circuit and an excitation magnetic field is generated.

[0047] In this process, when a current exceeding a predetermined value needs to be connected, the compression force of the compression spring 42 on the contact point 43 can be increased by rotating several terminals 41 on the connection ring 3. The contact point 43 is deformed by compression, which increases the contact area with the electrode plate 212, so that the collector ring can carry a larger current.

[0048] When the electrode plate 212 is damaged, the electrode plate 212 can be quickly disassembled and replaced because it is fixedly connected to the electrode holder 211 through the ferrule 213, making the collector ring more durable and more applicable. When the electrode holder 211, the electrode plate 212 and the wiring assembly 4 are damaged, the wiring ring 3 can be rotated to make different abutting points 43 abut against the electrode plate 212, so as to achieve emergency use and improve the reliability of the collector ring when in use.

[0049] Embodiment 2

[0050] Reference Figure 6 and Figure 7 The contact point 43 is made of a flexible conductive material that can change the contact area with the electrode plate 212 by squeezing. A conductive adjusting screw ring 44 is fixedly connected to one end of the compression spring 42 close to the wiring ring 3. The adjusting screw ring 44 is threadedly sleeved on the terminal 41. When a large current needs to be conducted, the contact area between the contact point 43 and the electrode plate 212 can be increased by rotating the adjusting screw ring 44.

[0051] Moreover, since the adjusting screw ring 44 is threadedly connected to the terminal 41, when the compression spring 42 and the abutting contact 43 are damaged, the two parts can be quickly replaced, which is beneficial to ensure the long-term use of the collector ring and extend its service life.

[0052] The implementation principle of a collector ring structure in the second embodiment of the present application is:

[0053] Except for the connection structure between the terminal 41 and the compression spring 42 and the method for adjusting the squeezing force of the compression spring 42, the second embodiment of the present application has no other differences from the implementation principle of the first embodiment, so it will not be elaborated again.

[0054] Embodiment 3

[0055] Reference Figure 8 and Fig. 9 The conductive ring 2 includes a rotating part 21 sleeved on the sleeve 1 and a conductive part 22 rotatably sleeved on the outside of the rotating part 21. The rotating part 21 is fixedly connected to the sleeve 1 and can rotate synchronously with the sleeve 1. The outside of the conductive part 22 abuts against the brush for receiving current. A conductive medium is filled between the rotating part 21 and the conductive part 22 to ensure that the two are in full contact and have good conductivity. A number of electrode seats 211 are all arranged on the rotating part 21 to avoid the electrode plate 212 from frictionally contacting the abutting contact point 43 when the collector ring is working, thereby accelerating the wear of the electrode plate 212.

[0056] The implementation principle of a collector ring structure in the third embodiment of the present application is:

[0057] With this structure, when the rotating part 21 rotates synchronously with the sleeve 1, the conductive part 22 is fixed in position, which can avoid friction with the brush, causing brush wear, and avoiding parts loss and friction heating. The other structures of the third embodiment are the same as those of the first embodiment, so they are not described in detail.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A collector ring structure, comprising a sleeve (1) for fixedly sleeved on a rotor and a conductive ring (2) fixedly sleeved on the outside of the sleeve (1), the outside of the conductive ring (2) abutting against a brush, a connecting ring (3) sleeved on the sleeve (1), a plurality of connecting assemblies (4) for connecting excitation wires being arranged at equal intervals along the circumferential direction on the connecting ring (3), characterized in that: A plurality of conductive electrode seats (211) are installed at equal intervals along the circumferential direction on a side close to the wiring ring (3) on the conductive ring (2); an electrode plate (212) is connected to one end of the electrode seat (211) close to the wiring ring (3); and a plurality of electrode plates (212) are respectively in contact with access ends of the wiring assembly (4) on sides away from the electrode seat (211).

2. A slip ring structure according to claim 1, characterized in that: The wiring assembly (4) comprises a plurality of wiring posts (41) which penetrate the wiring ring (3) at equal intervals along the circumferential direction and a compression spring (42) which is fixedly connected to the wiring post (41) on the side close to the conductive ring (2); the wiring post (41) is fixedly connected to the excitation wire; the compression spring (42) is fixedly connected to a contact point (43) on the side close to the conductive ring (2); the contact point (43) is tightly pressed against the electrode plate (212).

3. A slip ring structure according to claim 2, characterized in that: The abutting contact point (43) is made of a flexible conductive material whose contact area with the electrode plate (212) can be changed by extrusion. The wiring ring (3) is provided with a plurality of wiring screw holes (31) at equal intervals along the circumference. The wiring posts (41) in the plurality of wiring assemblies (4) are all threadedly connected to the wiring screw holes (31), and the wiring posts (41) are always in full contact with the wiring ring (3).

4. A slip ring structure according to claim 2, characterized in that: The abutting contact point (43) is made of a flexible conductive material whose contact area with the electrode plate (212) can be changed by squeezing. An adjusting screw ring (44) is fixedly connected to one end of the compression spring (42) close to the wiring ring (3). The adjusting screw ring (44) is threadedly sleeved on the wiring post (41).

5. A slip ring structure according to claim 1, characterized in that: The electrode plate (212) comprises an integrally connected central portion (2121) and an annular sleeve portion (2122); the sleeve portion (2122) is detachably sleeved with an insulating sleeve (213); and the sleeve (213) is threadedly connected to the electrode seat (211).

6. A slip ring structure according to claim 1, characterized in that: The edges of one side of a plurality of the electrode plates (212) close to the wiring ring (3) are all rounded structures.

7. A slip ring structure according to claim 1, characterized in that: The outer side of the sleeve (1) is provided with a step (11), the wiring ring (3) is rotatably arranged on the step (11), a positioning ring (5) is integrally sleeved on the sleeve (1) at the side of the wiring ring (3) away from the conductive ring (2), a plurality of locking pins (51) for limiting the rotation of the wiring ring (3) are threadedly penetrated on the positioning ring (5), a locking ring groove (32) with anti-slip grooves (321) on the bottom side is provided on the side of the wiring ring (3) close to the positioning ring (5), the locking pin (51) abuts against the bottom side of the locking ring groove (32), and the number of the electrode plates (212) is a multiple of the number of the wiring assemblies (4).

8. A slip ring structure according to claim 7, characterized in that: The number of the electrode plates (212) on the conductive ring (2) is no less than 16.

9. A slip ring structure according to claim 1, characterized in that: The conductive ring (2) comprises a rotating part (21) fixedly mounted on the sleeve (1) and a conductive part (22) rotatably mounted on the outside of the rotating part (21); a plurality of electrode seats (211) are mounted on the rotating part (21); and a conductive medium is filled between the contact surfaces of the conductive part (22) and the rotating part (21).

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