Fiber Fixator, Electric Erosion Prevention Conductive Ring for Bearing, and Motor

Abstract

A fiber fixing device including a main body is disclosed. Inside the main body, a fiber accommodating hole is arranged along the length direction of the main body. The fiber accommodating hole is configured to accommodate conductive fibers. The main body includes a detachment prevention portion and a fixing portion. The fixing portion and the detachment prevention portion constitute the main body. The outer diameter of the detachment prevention portion is larger than the outer diameter of the fixing portion. The fiber accommodating hole is formed at least inside the fixing portion and extends to the end of the main body. When the fixing portion receives an external force, it deforms to contract a part of the inner diameter of the fiber accommodating hole, thereby fixing the conductive fiber in the main body. In the present invention, the fiber fixing device fixes the conductive fiber using its fixing portion and applies an axial restraint force.

Description

Technical Field

[0001] The present invention relates to the field of bearing protection rings and motors, and particularly to fiber fixators, conductive rings for preventing bearing electrolytic corrosion, and motors.

Background Art

[0002] Currently, during the use of motors, in order to solve the problem of bearing electrolytic corrosion of motors, bearing protection devices are used to protect motors, and the bearing protection devices can effectively control the shaft voltage and bearing current to protect the bearings.

[0003] However, many of the existing designs of bearing protection devices have the disadvantages of inconvenient assembly and high cost. To solve the existing disadvantages, it is necessary to design a new structure.

[0004] Patent Document 1: Patent Document CN113178980A discloses a shaft-grounded bearing protection device and a motor, including a device body and conductive fibers. The device body is annular, and at least one mounting hole is opened on its side wall. The opening direction of the mounting hole is the first direction, and the first direction is towards the center of the device body and penetrates radially along the device body. The conductive fibers are installed in the device body through the mounting holes, and the extending direction of the conductive fibers is towards the center of the device body. Here, when the conductive fibers penetrate the mounting holes, the device body is deformed by adjusting the pressure adhesion force in the second direction of the mounting holes to achieve the pressure adhesion between the conductive fibers and the device body. The second direction is perpendicular to the first direction. However, this design still has the disadvantages of many processes, complex processing, and not being suitable for mass production.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In consideration of the drawbacks of the prior art, an object of the present invention is to provide a fiber fixator, an electric erosion prevention conductive ring, and a motor.

Means for Solving the Problems

[0007] A first aspect of the present invention provides a fiber fixator, the fiber fixator including a main body, a fiber accommodation hole being arranged inside the main body along the length direction of the main body, the fiber accommodation hole being used for accommodating conductive fibers, the main body including a detachment prevention part and a fixing part, the fixing part and the detachment prevention part constituting the main body, an outer diameter of the detachment prevention part being larger than an outer diameter of the fixing part, the fiber accommodation hole being formed at least inside the fixing part and extending to an end of the main body, the fixing part being deformed when receiving an external force to contract an inner diameter of a part of the fiber accommodation hole, thereby fixing the conductive fibers inside the main body.

[0008] Optionally, the detachment prevention part is located at a substantially end part of the main body, and the fixing part is located at a substantially central part of the main body.

[0009] Optionally, an open end of the main body has an R corner, and the conductive fibers extend outward from the open end of the main body.

[0010] Optionally, the detachment prevention part includes a first detachment prevention ring and a second detachment prevention ring, and the fixing part is located between the first detachment prevention ring and the second detachment prevention ring.

[0011] Optionally, the second detachment prevention ring is located at a front end of the main body, and an open end of the second detachment prevention ring has an R corner.

[0012] Optionally, a first stress groove is provided between the first detachment prevention ring and the fixing part, and a second stress groove is provided between the fixing part and the second detachment prevention ring, and both the first stress groove and the second stress groove are used for absorbing deformation caused by pressing of the fixing part.

[0013] Optionally, the range of the lengths of the first stress groove and the second stress groove is 4 mm to 4.2 mm.

[0014] Optionally, the fixing portion is a cylinder or a prism.

[0015] Optionally, the fiber accommodating hole penetrates the main body, or the fiber accommodating hole is a solid hole within the main body.

[0016] Optionally, only one anti-drop-off portion is provided.

[0017] Optionally, the cross-section of the fixing portion after being deformed by an external force is at least polygonal.

[0018] Optionally, the fiber fixator also includes conductive fibers, the fiber accommodating hole penetrates the main body, at least one end of the conductive fibers extends outward along the length of the main body, and the main body has conductivity.

[0019] A second aspect of the present invention provides a fiber fixator, which includes a main body, a fiber accommodating hole is penetrated along the length direction of the main body, the fiber accommodating hole is used for accommodating conductive fibers, a first anti-drop-off ring, a fiber fixing ring, and a second anti-drop-off ring are sequentially arranged in the length direction of the main body, a first stress groove is provided between the first anti-drop-off ring and the fiber fixing ring, a second stress groove is provided between the fiber fixing ring and the second anti-drop-off ring, and both the first stress groove and the second stress groove are used for absorbing the deformation caused by the pressing of the fiber fixing ring.

[0020] A third aspect of the present invention provides a conductive ring for preventing electrolytic corrosion of a bearing, which includes an annular bracket and a shell, the shell can be attached to the annular bracket, at least one mounting groove is provided in the annular bracket, and the mounting groove is used for fixing the fiber fixator described in the first aspect or the second aspect of the present invention.

[0021] Optionally, a plurality of the mounting grooves are arranged along the circumference of the annular bracket, and the axial direction of the fiber fixator is substantially the same as the radial direction of the annular bracket.

[0022] Optionally, the mounting groove includes a first groove that fits the fixing portion of the fiber fixator and a second groove that fits the anti-drop portion of the fiber fixator.

[0023] Optionally, the diameter of the second groove is slightly larger than the diameter of the first groove.

[0024] Optionally, the upper surface of the anti-drop portion of the fiber fixator is slightly higher than the annular bracket, the anti-drop portion is in close contact with the shell, the shell can be attached in accordance with the annular bracket, at least one mounting groove is provided in the annular bracket, and the mounting grooves are in close contact.

[0025] Optionally, a conductive fiber is fixed to the fiber fixator, the end of the conductive fiber is in interference contact with the shell, and the end of the fiber fixator is in interference contact with the shell. Specifically, the non-exposed end of the conductive fiber in the fiber fixator is connected to the annular bracket and is electrically connected to the shell. The exposed end of the conductive fiber in the fiber fixator is in interference contact with the motor shaft. The shell can be attached in accordance with the annular bracket, at least one mounting groove is provided in the annular bracket, and the mounting grooves are in interference contact.

[0026] Optionally, the conductive ring for preventing bearing electrolytic corrosion includes a plurality of annular brackets, and the plurality of annular brackets are arranged in layers within the conductive ring for preventing bearing electrolytic corrosion.

[0027] A fourth aspect of the present invention provides a conductive ring for preventing bearing electrolytic corrosion. The conductive ring for preventing bearing electrolytic corrosion includes an annular bracket and a cover plate. The cover plate can be attached in accordance with the annular bracket. The cover plate and the annular bracket together form at least one mounting groove. The mounting groove is arranged along the radial direction of the annular bracket. The mounting groove is adapted to and can accommodate the fiber fixator described in any one of the first aspect or the second aspect of the present invention.

[0028] Optionally, a plurality of anti-drop buckles extending towards one side of the annular bracket are arranged at annular intervals. There is an anti-drop position inside the surface of the annular bracket opposite to the cover plate. The plurality of anti-drop buckles can penetrate through the central hole of the annular bracket and be engaged with and adapted to the anti-drop position.

[0029] Optionally, the end of the anti-drop buckle has an inclined surface, and the inclined surface can guide the cover plate to be locked to the annular bracket.

[0030] A fifth aspect of the present invention provides a motor, to which the conductive ring for preventing bearing electrolytic corrosion described in the third aspect of the present invention is attached, or the conductive ring for preventing bearing electrolytic corrosion described in the fourth aspect of the present invention is attached.

[0031] Optionally, the motor also includes conductive fibers disposed on a conductive ring for preventing bearing electrolytic corrosion. The output shaft of the motor is mounted within the conductive ring for preventing bearing electrolytic corrosion. The front end of the conductive fiber is in interference contact with the motor shaft, and the rear end of the conductive fiber is in interference contact with the shell of the conductive ring for preventing bearing electrolytic corrosion. The shell can be mounted in accordance with the annular bracket. The annular bracket is provided with at least one mounting groove, and the mounting groove is in interference contact. The main body of the fiber fixator contacts the shell, the shell contacts the motor, the shell can be mounted in accordance with the annular bracket. The annular bracket is provided with at least one mounting groove, and the mounting groove is in interference contact. Both the main body of the fiber fixator and the shell have conductivity.

Advantages of the Invention

[0032] Compared with the prior art, the present invention has at least the following beneficial effects. 1. In the prior art, there is only a radial restraint force on the conductive fiber and no axial restraint force. The fiber fixator of the present invention provides a radial restraint force in the axial direction to prevent the fiber bundle from falling down. Using its fixing part to fix the conductive wire fiber and applying an axial restraint force to prevent the fiber bundle from coming off, fixing the conductive fiber using the fiber fixator is superior to fixing the conductive fiber using the main body of the shaft grounding bearing protection device. 2. The present invention includes an annular bracket and a shell. The shell can be mounted in accordance with the annular bracket. The annular bracket is provided with at least one mounting groove. The assembly structure of the mounting groove and the annular bracket is simple to assemble, has few processes, is suitable for mass production, and improves production efficiency.

Brief Description of the Drawings

[0033]

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Embodiments for Carrying Out the Invention

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts are included within the protection scope of the present invention.

[0035] As shown in FIGS. 1 to 5, the present invention provides a fiber fixing device including a main body 1. The main body 1 has a fiber accommodating hole 11 penetrating along the length direction. The fiber accommodating hole 11 is used to accommodate conductive fibers 22 (usually fiber bundles). In the length direction of the main body 1, a first anti-drop ring 12, a fiber fixing ring 13, and a second anti-drop ring 14 are sequentially arranged along the circumferential direction of the main body 1. A first stress groove 15 is provided between the first anti-drop ring 12 and the fiber fixing ring 13, and a second stress groove 16 is provided between the fiber fixing ring 13 and the second anti-drop ring 14. Both the first stress groove 15 and the second stress groove 16 are used to absorb the deformation caused by the pressing of the fiber fixing ring 13.

[0036] The main body 1 has a fiber accommodating hole 11 penetrating along the length direction. The fiber accommodating hole 11 is used to accommodate conductive fibers 22. In the length direction of the main body 1, a first anti-drop ring 12, a fiber fixing ring 13, and a second anti-drop ring 14 are sequentially arranged along the circumferential direction of the main body 1. A first stress groove 15 is provided between the first anti-drop ring 12 and the fiber fixing ring 13, and a second stress groove 16 is provided between the fiber fixing ring 13 and the second anti-drop ring 14. Both the first stress groove 15 and the second stress groove 16 are used to absorb the deformation caused by the pressing of the fiber fixing ring 13. When installing the conductive fibers 22, the conductive fibers 22 penetrate from one end of the fiber accommodating hole 11 to reach the other end of the fiber accommodating hole 11. Preferably, the conductive fibers 22 protrude outside the other end of the fiber accommodating hole 11, and the conductive fibers 22 protrude from the rear end of the main body 1 for buffering.

[0037] In actual applications, one end of the second anti-drop ring 14 away from the second stress groove 16 extends outside the guide end 17. The fiber accommodation hole 11 of the guide end 17 is trumpet-shaped as shown in FIG. 5 and is configured to guide the installation of the conductive fiber 22. When the conductive fiber 22 is installed inside the main body 1, the fiber fixing ring 13 is pressed by an external force and the fiber fixing ring 13 deforms and retreats along the axis of the fiber accommodation hole 11 to crimp and fix the conductive fiber 22. At the same time, the deformation generated after the pressing deformation of the fiber fixing ring 13 is absorbed by the first stress groove 15 and the second stress groove 16. FIGS. 4 and 5 are schematic diagrams after the conductive fiber 22 is crimped and fixed.

[0038] The present invention also provides a conductive ring for preventing electric erosion of a bearing, including an annular bracket 3 and a cover plate 4. The cover plate 4 can be attached according to the annular bracket 3. The cover plate 4 and the annular bracket 3 together form at least one mounting groove 32. The mounting groove 32 is arranged along the radial direction of the annular bracket 3. In order to enhance the electric erosion prevention function, a plurality of mounting grooves 32 can be installed. Preferably, the plurality of mounting grooves 32 are evenly arranged on the annular bracket 3.

[0039] As shown in FIGS. 6 and 7, the mounting groove 32 can accommodate a fiber fixer. Here, the mounting groove 32 includes a front-end groove 321, a central groove 322, and a rear-end groove 323. The front-end groove 321 accommodates the second anti-drop ring 14 in a fitting manner. The central groove 322 accommodates the fiber fixing ring 13 in a fitting manner. The rear-end groove 323 accommodates the first anti-drop ring 12 in a fitting manner.

[0040] Specifically, the outer diameters of both the first anti-drop ring 12 and the second anti-drop ring 14 are larger than the outer diameter of other parts of the main body 1, so that no axial movement occurs after the main body 1 is installed in the mounting groove 32, and the firmness after installation is improved. Preferably, the outer diameters and shapes of the first anti-drop ring 12 and the second anti-drop ring 14 are of the same structure.

[0041] Preferably, the outer shapes of the first anti-drop ring 12, the second anti-drop ring 14, the bottom of the first stress groove 15, and the bottom of the second stress groove 16 are cylindrical structures. The fiber fixing ring 13 is a cylindrical structure before pressing, and the cross-section after pressing is preferably polygonal.

[0042] To facilitate assembly, the ends of the first anti-drop ring 12, the fiber fixing ring 13, and the second anti-drop ring 14 are all chamfered. In actual applications, various structures can be adopted for the connection method between the cover plate 4 and the annular bracket 3. The cover plate 4 can be fixed to the annular bracket 3 using various structural connection methods such as screwing, fastening, welding, or riveting.

[0043] Furthermore, the present invention also provides a motor equipped with the above-mentioned conductive ring for preventing electric erosion of the bearing of the present invention.

[0044] As shown in FIGS. 8, 9, 10, 11, and 12, in the conductive ring for preventing electric erosion of the bearing, a plurality of anti-drop buckles 41 extending toward one side of the annular bracket 3 are arranged at annular intervals on the cover plate 4. The anti-drop buckles 41 are elastic structures, and the annular outer diameter formed by the plurality of anti-drop buckles 41 is larger than the inner diameter of the inner hole of the annular bracket 3. When assembling the cover plate 4 to the annular bracket 3, the anti-drop buckles 41 can be elastically locked to the annular bracket 3. Preferably, the annular outer diameter formed by the plurality of anti-drop buckles 41 is slightly larger than the inner diameter of the inner hole of the annular bracket 3. There is an anti-drop position 31 inside the side surface of the annular bracket 3 opposite to the cover plate 4. When the cover plate 4 is assembled to the annular bracket 3, the plurality of anti-drop buckles 41 can penetrate through the central hole of the annular bracket 3 and be locked to fit the anti-drop position 31.

[0045] In this embodiment, the end of the anti-drop buckle 41 has an inclined surface 411, and this inclined surface 411 can guide the cover plate 4 to be locked to the annular bracket 3. A dust-proof ring 5 is also provided on the inner ring of the annular bracket 3, and one end of the conductive fiber 22 facing the center of the annular bracket 3 extends inside the inner surface of the dust-proof ring 5 to facilitate contact with electrically corroded parts and conduct and remove charges in a timely manner.

[0046] Referring to FIGS. 13 to 15, it is a fiber fixator in another embodiment of the present invention, including a main body 1, and the main body 1 has a fiber accommodation hole 11 disposed along the length direction of the main body 1 inside, that is, the main body 1 has a hollow structure, and the fiber accommodation hole 11 is configured to accommodate the conductive fiber 2.

[0047] The main body 1 includes an anti-drop part 8 and a fixing part 7. The fixing part 7 and the anti-drop part 8 each have a hollow structure, and the fixing part 7 and the anti-drop part 8 communicate with each other inside to form a fiber accommodation hole 11 for accommodating the conductive fiber 2. The anti-drop part 8 is located at a substantially end of the main body 1, and the fixing part 7 is located at a substantially central part of the main body 1. Of course, the anti-drop part 8 may be provided at a substantially central part of the main body 1, and the fixing part 7 may be adjacent to the substantially central part of the main body 1.

[0048] The fixing part 7 and the anti-drop part 8 constitute the main body 1, and the fixing part 7 and the anti-drop part 8 are preferably of an integral structure. Here, the outer diameter of the anti-drop part 8 is larger than the outer diameter of the fixing part 7, and the anti-drop part 8 can be used to connect with an external conductive ring to support and fix the main body 1.

[0049] The fiber accommodation hole 11 either penetrates the main body 1 or is a solid hole within the main body 1. For example, the fiber accommodation hole 11 is formed at least inside the fixing portion 7, extends to the end of the main body 1, and the fiber accommodation hole 11 may completely penetrate the main body 1. The fiber accommodation hole 11 may also be only a cavity formed inside the main body 1 but does not penetrate the main body 1. Although the fixing portion 7 and the anti-drop portion 8 are cylindrical in the drawings, in other embodiments, they may have other columnar shapes. The main body 1 accommodates the conductive fiber through the fiber accommodation hole 11, the main body 1 has a certain length, provides a radial restraint force in the axial direction, and prevents the fiber bundle from falling down.

[0050] For example, the fixing portion 7 is a cylinder or a prism. For example, in the case of a prism, the fixing portion 7 may have a semi-open structure with a U-shaped cross-section. When the fixing portion 7 receives an external force, it deforms to contract a part of the inner diameter of the fiber accommodation hole 11 to fix the conductive fiber 2 within the main body 1. Usually, the fiber fixator is made of metal and has conductivity. The external force usually occurs in the form of pressing. After the fixing portion 7 is pressed, it deforms, the diameter of the fiber accommodation hole 11 inside the fixing portion 7 shrinks, and the fiber is fixed within the fixing portion 7. The cross-section of the fixing portion 7 after being deformed by the external force is at least polygonal. As shown in FIG. 16, the cylindrical fixing portion 7 is pressed to form a hexagonal crimping surface. Of course, the fixing portion 7 can also be directly pressed and deformed to cover and fix the conductive fiber 2.

[0051] In the present invention, the fiber fixator uses the deformation of its fixing portion 7 to fix the conductive fiber, thereby providing an axial restraint force. The fixing portion 7 clamps the conductive fiber to prevent the escape of the conductive fiber bundle and makes the conductive fiber more firm.

[0052] Specifically, referring to FIGS. 13 to 15, the anti-drop portion 8 includes a first anti-drop ring 12 and a second anti-drop ring 14 respectively provided before and after the main body 1. The fixing portion 7 is located between the first anti-drop ring 12 and the second anti-drop ring 14.

[0053] Furthermore, the anti-drop-off part 8 includes a first anti-drop-off part and a second anti-drop-off part. The two do not have to be annular, or may have other shapes such as a polygonal shape, and may be fixed to other structures, or may have shapes for engagement, locking, etc.

[0054] In another embodiment, as shown in FIG. 17B, only one anti-drop-off part 8 may be provided. For example, only the first anti-drop-off ring 12 may be included.

[0055] In an embodiment including a first anti-drop-off part and a second anti-drop-off part, a first stress groove 15 is provided between the first anti-drop-off ring 12 and the fixing part 7, and a second stress groove 16 is provided between the fixing part 7 and the second anti-drop-off ring 14. The first stress groove 15 and the second stress groove 16 (energy absorption grooves) are both configured to absorb deformation caused by the pressing of the fixing part.

[0056] By designing the first anti-drop-off ring 12, the fixing part 7, and the second anti-drop-off ring 14 on the main body 1, the present invention greatly improves the stability of the fiber fixator in the mounting groove, facilitates assembly, and improves assembly efficiency.

[0057] Furthermore, an energy absorption groove is provided between the fixing part 7 and the anti-drop-off part 8 to reduce deformation and warping of the product, reduce the risk of damage to the joint part, and convert the shear force into the stretching force before and after. In any embodiment, the length range of the first stress groove 15 and the second stress groove 16 is 4 mm to 4.2 mm. Of course, according to the size requirements of the fiber fixator, the above-mentioned length range can also be enlarged or reduced.

[0058] To prevent fiber breakage and shedding, the open end of the fiber fixator is also provided with an R corner. In one embodiment, the open end of the main body 1 has an R corner, and as shown in the open position (upper position) shown in FIG. 2, the conductive fiber 2 extends outward from the open end of the main body 1. Also in the embodiment, the second anti-shedding ring 12 is located at the front end of the main body 1, and as shown in FIG. 15 (upper position), the open end of the second anti-shedding ring 12 has an R corner. That is, the position where the conductive fiber 2 extends out of the fiber fixator becomes an R corner. Compared with the conventional C corner, the C corner is an obtuse angle formed between two sides, the C corner makes the fiber prone to shedding, and the R corner can prevent fiber breakage and shedding.

[0059] Referring to FIG. 17, the fiber fixator also includes a conductive fiber 2, and the fiber accommodating hole 11 penetrates the main body 1. At least one end of the conductive fiber 2 extends outward along the length of the main body 1. In FIG. 17, the conductive fiber 2 extends from the front end and the rear end of the fiber fixator. In other embodiments, the conductive fiber 2 can extend only from the front end (upper part of FIG. 17) of the fiber fixator.

[0060] Since the main body 1 of the fiber fixator has conductivity and the conductive fiber 2 also has conductivity, the conductivity of both can prevent the corrosion of the conductive ring. Specifically, it will be described in combination with a conductive ring for preventing bearing electrolytic corrosion and a motor.

[0061] Referring to FIGS. 8, 18, and 19, the present invention also provides a conductive ring for preventing bearing electrolytic corrosion (also referred to as a conductive ring) including an annular bracket 3 and a shell. The shell and the annular bracket 3 can adopt various assembly structures, can be suitable for various application scenarios, and are very practical. The shell can be attached in accordance with the annular bracket 3. At least one mounting groove 9 is provided in the annular bracket 3. The mounting groove 9 is configured to fix the fiber fixator, and the fiber fixator is fitted into the mounting groove 9.

[0062] In the drawings, there are a plurality of the mounting grooves 9, specifically 12 in the drawings, and the mounting grooves are respectively arranged along the circumference of the annular bracket 3 such that the fibers protrude to the inside of the fiber holder.

[0063] The axial direction of the fiber holder is substantially the same as the radial direction of the annular bracket 3. The conductive fiber 2 fixed by the fiber holder faces the axis of the annular bracket 3.

[0064] The mounting groove 9 includes a first groove 91 that fits the fixing portion 7 of the fiber holder and a second groove 92 that fits the anti-drop portion 8 of the fiber holder. The diameter of the second groove 92 is slightly larger than the diameter of the first groove 91. This is the same as the above-described front-end groove 321 and rear-end groove 323.

[0065] When the fiber holder is fixed to the annular bracket 3, since the diameter of the second groove 92 is slightly larger than that of the first groove 91, the anti-drop portion 8 of the fiber holder is fitted into the portion of the second groove 92, and the entire fiber holder can be prevented from moving in the radial direction of the conductive ring.

[0066] Furthermore, the upper surface of the anti-drop portion 8 of the fiber holder is slightly higher than the annular bracket 3. When the fiber holder is fixed to the annular bracket 3, the surface of the anti-drop portion 8 of the fiber holder is slightly higher than the upper surface of the annular bracket 3. The maximum circular diameter portion of the anti-drop portion 8 forms a buckle shape with the mounting groove 9 of the annular bracket 3, adheres closely to the terminal cover, the anti-drop portion 8 adheres closely to the shell, and can prevent dropping during movement. Also, the upper portion of the anti-drop portion 8 protrudes from the annular bracket 3 and can come into complete contact with the shell during assembly to achieve the purpose of electrical conduction.

[0067] Furthermore, the annular brackets 3 can be made into multiple layers, and a plurality of annular brackets 3 can be provided on one conductive ring for bearing anti-erosion.

[0068] After assembly, the conductive fiber 2 is fixed to the fiber holder, the tip of the conductive fiber 2 is in interference contact with the shell, and the tip of the fiber holder is in interference contact with the shell.

[0069] As shown in FIGS. 19 and 20, since the length direction of the fiber holder faces the central position of the conductive ring, when the fiber holder is arranged inside the annular bracket 3, the length direction of the conductive fiber 2 coincides with the radial direction of the conductive ring, and the tip of the conductive fiber 2 also faces the central position of the conductive ring.

[0070] After the conductive ring for preventing bearing electrolytic corrosion is attached to the motor, the output shaft of the motor is arranged inside the conductive ring, the tip of the conductive fiber 2 contacts the output shaft of the motor, the front end of the conductive fiber 2 is in interference contact with the motor shaft, the rear end of the conductive fiber 2 is in interference contact with the metal shell, and the fiber holder is in close contact with the conductive fiber 2, the fiber holder is in close contact with the shell of the motor, and the shell is in interference contact with the outer surface of the motor. Therefore, a low-resistance conduction circuit is formed by the motor shaft, the conductive fiber 2, the fiber holder, and the motor shell. During the use of the motor, the electric charge generated on the motor shaft is easily conducted to the motor shell by the conductive ring, and the electric charge does not accumulate between the motor bearings to form a high-voltage potential. Thereby, the risk of electrolytic corrosion is reduced and the service life of the motor bearing is extended. Otherwise, electric charge accumulates on the bearing and electrolytic corrosion occurs.

[0071] In addition, the present invention provides a motor that greatly improves the convenience of assembly by providing an attachment groove 9 between the annular bracket 3 and the shell and fixing the conductive fiber 2 through a fiber holder adapted to the shape of the attachment groove 9, has fewer attachment steps, is simple in processing and assembly, and is also suitable for mass production.

[0072] Specifically, the motor includes a shell. Inside the shell, there are a motor and conductive fibers 2 arranged on the conductive ring for preventing bearing electrolytic corrosion. The output shaft of the motor is installed inside the conductive ring for preventing bearing electrolytic corrosion. The front end of the conductive fiber 2 is in interference contact with the motor shaft, and the rear end of the conductive fiber 2 is in interference contact with the shell. The main body 1 of the fiber fixator is in interference contact with the shell. The shell is in interference contact with the motor. The shell is connected to the shell, made of metal, having conductivity. Both the main body 1 of the fiber fixator and the shell have conductivity. A low-resistance conduction circuit is formed by the motor shaft, the conductive fiber 2, the fiber fixator, and the motor shell. During the use of the motor, the electric charges generated on the motor shaft are easily conducted to the motor shell by the conductive ring, and no electric charges accumulate between the motor bearings to form a high-voltage potential. Thereby, the risk of electrolytic corrosion is reduced, the life of the motor bearings is extended, and at the same time, a new structural plan is provided for the conductive ring for preventing bearing electrolytic corrosion.

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or perform equivalent substitutions for some of the technical features. These modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of each embodiment of the present invention.

Explanation of Reference Numerals

[0074] 1 Main body 11 Fiber accommodating hole 12 First anti-drop ring 13 Fiber fixing ring 14 Second anti-drop ring 15 First stress groove 16 Second stress groove 17 Guide end 2 Conductive fiber 3 Annular bracket 31 Anti-drop position 32 Mounting groove 321 Front groove 322 Central groove 323 Rear groove 4 Cover plate 41 Anti - detachment buckle 411 Inclined surface 5 Dust - proof ring 6 R corner 7 Fixed part 8 Anti - detachment part 9 Mounting groove 91 First groove 92 Second groove

Claims

1. A fiber fixator, wherein the fiber fixator includes a main body, a fiber accommodating hole is arranged along the length direction of the main body inside the main body, the fiber accommodating hole is configured to accommodate conductive fibers, the main body includes a detachment preventing part and a fixing part, the fixing part and the detachment preventing part constitute the main body, an outer diameter of the detachment preventing part is larger than an outer diameter of the fixing part, the fiber accommodating hole is formed at least inside the fixing part and extends to an end of the main body, and when the fixing part receives an external force, it deforms to shrink an inner diameter of a part of the fiber accommodating hole, thereby fixing the conductive fiber in the main body. The fiber fixator characterized by the above.

2. The detachment preventing part is located at a substantially end of the main body, and the fixing part is located at a substantially central part of the main body. The fiber fixator according to Claim 1.

3. An opening end of the main body has an R corner, and the conductive fiber extends outward from the opening end of the main body. The fiber fixator according to Claim 1.

4. The detachment preventing part includes a first detachment preventing ring and a second detachment preventing ring, and the fixing part is located between the first detachment preventing ring and the second detachment preventing ring. The fiber fixator according to any one of Claims 1 to 3.

5. The second detachment preventing ring is located at a front end of the main body, and an opening end of the second detachment preventing ring has an R corner. The fiber fixator according to Claim 4.

6. A first stress groove is provided between the first detachment preventing ring and the fixing part, a second stress groove is provided between the fixing part and the second detachment preventing ring, and both the first stress groove and the second stress groove are configured to absorb deformation caused by pressing of the fixing part. The fiber fixator according to Claim 4.

7. The fixing part is a cylinder or a polygonal prism. The fiber fixator according to Claim 1.

8. The fiber accommodating hole penetrates the main body, or the fiber accommodating hole is a solid hole inside the main body. The fiber fixator according to Claim 1.

9. Only one detachment preventing part is installed. The fiber fixator according to Claim 1.

10. A cross section of the fixing part after being deformed by an external force is at least polygonal. The fiber fixator according to Claim 1.

11. Further including a conductive fiber, the fiber accommodating hole penetrates the main body, at least one end of the conductive fiber extends outward along the length of the main body, and the main body has conductivity. The fiber fixator according to Claim 1.

12. A fiber fixing device, wherein the fiber fixing device includes a main body, a fiber accommodating hole is penetrated along the length direction of the main body in the main body, the fiber accommodating hole is configured to accommodate conductive fibers, and a first anti-drop ring, a fiber fixing ring, and a second anti-drop ring are sequentially arranged along the circumferential direction of the main body in the length direction of the main body. A first stress groove is provided between the first anti-drop ring and the fiber fixing ring, and a second stress groove is provided between the fiber fixing ring and the second anti-drop ring. Both the first stress groove and the second stress groove are configured to absorb deformation caused by pressing of the fiber fixing ring. A fiber fixing device characterized by the above.

13. A conductive ring for preventing bearing electrolytic corrosion, wherein the conductive ring for preventing bearing electrolytic corrosion includes an annular bracket and a shell, the shell can be attached according to the annular bracket, at least one mounting groove is provided in the annular bracket, the mounting groove is configured to fix a fiber fixing device, the fiber fixing device includes a main body, a fiber accommodating hole is arranged along the length direction of the main body inside the main body, and the fiber accommodating hole is configured to accommodate conductive fibers. The inner wall of the fiber accommodating hole is adhered to the conductive fiber to fix the conductive fiber in the main body, or at least a part of the main body is deformed when receiving an external force to contract a part of the inner diameter of the fiber accommodating hole, thereby fixing the conductive fiber in the main body. A conductive ring for preventing bearing electrolytic corrosion characterized by the above.

14. A plurality of the mounting grooves are arranged along the circumference of the annular bracket, and the axial direction of the fiber fixing device is substantially the same as the radial direction of the annular bracket. The conductive ring for preventing bearing electrolytic corrosion according to Claim 13.

15. The mounting groove includes a first groove adapted to a fixing part of the fiber fixing device and a second groove adapted to an anti-drop part of the fiber fixing device. The conductive ring for preventing bearing electrolytic corrosion according to Claim 13.

16. The diameter of the second groove is slightly larger than the diameter of the first groove. The conductive ring for preventing bearing electrolytic corrosion according to Claim 15.

17. The upper surface of the anti-drop part of the fiber fixing device is slightly higher than the annular bracket, and the anti-drop part is in close contact with the shell. The conductive ring for preventing bearing electrolytic corrosion according to Claim 13.

18. A conductive fiber is fixed to the fiber fixing device, the end of the conductive fiber is in interference contact with the shell, and the end of the fiber fixing device is in interference contact with the shell. The conductive ring for preventing bearing electrolytic corrosion according to claim 13.

19. Including a plurality of annular brackets, the plurality of annular brackets are arranged in layers within the bearing electrolytic corrosion prevention conductive ring. The conductive ring for preventing bearing electrolytic corrosion according to claim 13.

20. A conductive ring for preventing bearing electrolytic corrosion, including an annular bracket and a cover plate, the cover plate can be attached according to the annular bracket, the cover plate and the annular bracket form at least one mounting groove together, the mounting groove is arranged along the radial direction of the annular bracket, the mounting groove is configured to fix a fiber holder, the fiber holder includes a body, and a fiber accommodating hole is arranged along the length direction of the body inside the body, and the fiber accommodating hole is configured to accommodate conductive fibers. The inner wall of the fiber accommodating hole is adhered to the conductive fiber to fix the conductive fiber in the body, or at least a part of the body deforms when receiving an external force to contract a part of the inner diameter of the fiber accommodating hole, thereby fixing the conductive fiber in the body. A conductive ring for preventing bearing electrolytic corrosion, characterized by the above.

21. On the cover plate, a plurality of anti-drop buckles extending towards one side of the annular bracket are arranged at annular intervals. There is an anti-drop position inside the surface of the annular bracket opposite to the cover plate, and the plurality of anti-drop buckles can penetrate through the central hole of the annular bracket and fit and lock at the anti-drop position. The conductive ring for preventing bearing electrolytic corrosion according to claim 20.

22. There is an inclined surface at the end of the anti-drop buckle, and the inclined surface can guide the cover plate to lock to the annular bracket. The conductive ring for preventing bearing electrolytic corrosion according to claim 21.

23. A motor, the motor includes a conductive ring for preventing bearing electrolytic corrosion, the conductive ring for preventing bearing electrolytic corrosion includes an annular bracket, a mounting groove is arranged along the radial direction of the annular bracket, the mounting groove is configured to fix a fiber holder, the fiber holder includes a body, and a fiber accommodating hole is arranged along the length direction of the body inside the body, and the fiber accommodating hole is configured to accommodate conductive fibers. The inner wall of the fiber accommodation hole is adhered to the conductive fiber to fix the conductive fiber in the main body, or at least a part of the main body deforms when receiving an external force, and a part of the inner diameter of the fiber accommodation hole contracts to fix the conductive fiber in the main body. A motor characterized by the above.

24. Further including a conductive fiber disposed in a conductive ring for preventing bearing electrolytic corrosion, the output shaft of the motor is mounted in the conductive ring for preventing bearing electrolytic corrosion, the front end of the conductive fiber is in interference contact with the motor shaft, the rear end of the conductive fiber is in interference contact with the shell of the conductive ring for preventing bearing electrolytic corrosion, the main body of the fiber fixator is in interference contact with the shell, the shell is in interference contact with the motor, and both the main body of the fiber fixator and the shell have conductivity. The motor according to claim 23.

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