Fiber holders, bearing electrical corrosion protection conductive rings and motors

Abstract

The present invention discloses a fiber holder, comprising a body, wherein the body has a fiber receiving hole arranged along the length direction, and the fiber receiving hole is used to receive conductive fibers; the body comprises an anti-slipping part and a fixing part; the fixing part and the anti-slipping part constitute the body, and the outer diameter of the anti-slipping part is larger than the outer diameter of the fixing part, and the fiber receiving hole is at least formed inside the fixing part and extends to the end of the body; the fixing part is deformed after being subjected to an external force, so that the inner diameter of part of the fiber receiving hole shrinks, so as to fix the conductive fibers in the body. In the present invention, the fiber holder uses its fixing part to fix the conductor fibers, and provides an axial restraining force.

Description

Technical Field

[0001] The invention relates to the field of bearing protection rings and motors, and in particular to a fiber fixer, a bearing electrical corrosion protection conductive ring and a motor. Background Art

[0002] At present, during the use of motors, bearing protection devices are used to protect the motors to solve the problem of electrical corrosion of the motor bearings. The bearing protection devices can effectively control the shaft voltage and bearing current to protect the bearings.

[0003] However, most existing bearing protection devices have the disadvantages of being inconvenient to assemble and being costly, and a new structure needs to be designed to solve the existing deficiencies.

[0004] Patent document CN113178980A discloses a shaft grounding bearing protection device and a motor, comprising: a device body, which is annular and has at least one mounting hole on its side wall, the mounting hole opening direction being a first direction, the first direction being toward the center of the device body and radially penetrating the device body; conductive fibers, which pass through the mounting hole to be arranged on the device body, and the conductive fibers extend in a direction toward the center of the device body; wherein, when the conductive fibers pass through the mounting hole, the device body is deformed by adjusting the clamping force in a second direction of the mounting hole to achieve clamping of the conductive fibers and the device body, the second direction being perpendicular to the first direction, but the design still has the disadvantages of having many processes, complex processing, and being not suitable for mass production. Summary of the invention

[0005] In view of the defects in the prior art, the object of the present invention is to provide a fiber holder, a bearing electrical corrosion protection conductive ring and a motor.

[0006] According to a first aspect of the present invention, a fiber fixing device is provided, comprising: a main body, wherein a fiber accommodating hole is arranged along the length direction inside the main body, and the fiber accommodating hole is used to accommodate conductive fibers; the main body comprises an anti-detachment part and a fixing part; the fixing part and the anti-detachment part constitute the main body, and the outer diameter of the anti-detachment part is larger than the outer diameter of the fixing part, and the fiber accommodating hole is at least formed inside the fixing part and extends to the end of the main body; the fixing part is deformed after being subjected to external force, so that the inner diameter of part of the fiber accommodating hole shrinks, so as to fix the conductive fibers in the main body.

[0007] Optionally, the anti-slip portion is approximately located at an end of the body, and the fixing portion is approximately located in the middle of the body.

[0008] Optionally, the open end of the body has an R angle; and the conductive fibers extend outward from the open end of the body.

[0009] Optionally, the anti-slip portion includes a first anti-slip ring and a second anti-slip ring, and the fixing portion is located between the first anti-slip ring and the second anti-slip ring.

[0010] Optionally, the second anti-slip ring is located at the front end of the body, and the opening end of the second anti-slip ring has an R angle.

[0011] Optionally, a first stress groove is provided between the first anti-slip ring and the fixing portion, and a second stress groove is provided between the fixing portion and the second anti-slip ring, and both the first stress groove and the second stress groove are used to absorb deformation caused by squeezing the fixing portion.

[0012] Optionally, the lengths of the first stress groove and the second stress groove range from 4 mm to 4.2 mm.

[0013] Optionally, the fixing portion is a cylinder or a polygonal cylinder.

[0014] Optionally, the fiber receiving hole passes through the body or the fiber receiving hole is a solid hole in the body.

[0015] Optionally, there is only one anti-slip portion.

[0016] Optionally, after the fixing portion is deformed by an external force, its cross section is at least polygonal.

[0017] Optionally, the fiber fixture further comprises conductive fibers, the fiber receiving hole penetrates the body, at least one end of the conductive fibers extends outward along the length of the body, and the body is conductive.

[0018] According to a second aspect of the present invention, a fiber fixer is provided, comprising a main body, the main body having a fiber accommodating hole penetrating along the length direction, the fiber accommodating hole being used to accommodate conductive fibers, and a first anti-slip ring, a fiber fixing ring, and a second anti-slip ring being sequentially arranged along the length direction of the main body; a first stress groove is provided between the first anti-slip ring and the fiber fixing ring, and a second stress groove is provided between the fiber fixing ring and the second anti-slip ring, and both the first stress groove and the second stress groove are used to absorb deformation caused by squeezing the fiber fixing ring.

[0019] According to a third aspect of the present invention, there is provided a conductive ring for protecting against electrical corrosion of a bearing, comprising an annular bracket and an outer shell, wherein the outer shell can be matched and mounted on the annular bracket, and the annular bracket is provided with at least one mounting groove, and the mounting groove is used to fix the fiber fixer described in the first aspect of the present invention or the second aspect of the present invention.

[0020] Optionally, a plurality of mounting grooves are provided and arranged along the circumference of the annular support, and the axial direction of the fiber holder is substantially the same as the radial direction of the annular support.

[0021] Optionally, the mounting groove includes a first groove adapted to the fixing portion of the fiber fixture, and a second groove adapted to the anti-dropping portion of the fiber fixture.

[0022] Optionally, a diameter of the second groove is slightly larger than a diameter of the first groove.

[0023] Optionally, the upper surface of the anti-detachment part of the fiber fixer is slightly higher than the annular bracket, the anti-detachment part and the annular bracket and the shell are included, the shell can be matched and installed on the annular bracket, and the annular bracket is provided with at least one installation groove, and the installation groove is in close contact.

[0024] Optionally, a conductive fiber is fixed on the fiber holder, and an end of the conductive fiber is connected to the annular bracket and the outer shell, and the outer shell can be matched and installed on the annular bracket, and the annular bracket is provided with at least one mounting groove, and the mounting groove is in interference contact. The end of the fiber holder is connected to the annular bracket and the outer shell, and the outer shell can be matched and installed on the annular bracket, and the annular bracket is provided with at least one mounting groove, and the mounting groove is in interference contact.

[0025] Optionally, the bearing electrical corrosion protection conductive ring comprises a plurality of annular supports, and the plurality of annular supports are arranged in layers within the bearing electrical corrosion protection conductive ring.

[0026] According to a fourth aspect of the present invention, there is provided a conductive ring for protecting against electrical corrosion of a bearing, comprising an annular bracket and a cover plate, wherein the cover plate can be mounted on the annular bracket and together form at least one mounting groove, wherein the mounting groove is arranged radially along the annular bracket; the mounting groove can accommodate the fiber holder described in any one of the first aspect of the present invention or the second aspect of the present invention.

[0027] Optionally, the cover plate extends from one side of the annular bracket to have a plurality of anti-drop buckles arranged in a ring-shaped interval, and the inner side of the side of the annular bracket facing away from the cover plate has an anti-drop position, and the plurality of anti-drop buckles can pass through the center hole of the annular bracket and match and buckle on the anti-drop position.

[0028] Optionally, the anti-dropping end has a slope, and the slope is used to guide the cover plate to snap into the annular bracket.

[0029] According to a fifth aspect of the present invention, there is provided a motor equipped with the bearing electrical corrosion protection conductive ring according to the third aspect of the present invention, or equipped with the bearing electrical corrosion protection conductive ring according to the fourth aspect of the present invention.

[0030] Optionally, the motor further includes a conductive fiber provided on a conductive ring for electric corrosion protection of the bearing, the output shaft of the motor is installed in the conductive ring for electric corrosion protection of the bearing, the front end of the conductive fiber is in interference contact with the motor shaft, the tail end of the conductive fiber is in interference contact with the annular bracket and the shell, the shell can be matched and installed on the annular bracket, the annular bracket is provided with at least one mounting groove, the mounting groove is in interference contact, the body of the fiber holder is in interference contact with the annular bracket and the shell, the shell can be matched and installed on the annular bracket, the annular bracket is provided with at least one mounting groove, the mounting groove is in interference contact, the annular bracket and the shell, the shell can be matched and installed on the annular bracket, the annular bracket is provided with at least one mounting groove, the mounting groove is in interference contact with the motor; wherein the body of the fiber holder, the annular bracket and the shell, the shell can be matched and installed on the annular bracket, the annular bracket is provided with at least one mounting groove, the mounting groove is in interference contact with the motor;

[0031] Compared with the prior art, the present invention has at least the following beneficial effects:

[0032] 1. The prior art only has radial restraint force on the conductive fiber, but no axial restraint force; the fiber holder in the present invention provides radial restraint force in the axial direction to prevent the fiber bundle from falling over, and uses its fixing part to fix the conductor fiber to provide axial restraint force to prevent the fiber bundle from coming out. The use of the fiber holder to fix the conductive fiber is better than using the body of the shaft grounding bearing protection device to fix the conductive fiber;

[0033] 2. The present invention includes an annular bracket and a shell, and the shell can be matched and installed on the annular bracket. The annular bracket is provided with at least one installation groove. The assembly structure of the installation groove and the annular bracket is simple to assemble, with fewer steps, suitable for mass production, and improved production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of the side structure of the fiber holder of the present invention;

[0035] Figure 2 for Figure 1 Schematic diagram of the structural section along the AA direction;

[0036] Figure 3 is a schematic diagram of the three-dimensional structure of the fiber holder in the present invention;

[0037] Figure 4 This is a schematic side view of the structure of the fiber holder after the conductive fiber is installed in the present invention;

[0038] Figure 5 for Figure 4Schematic diagram of the structural section along the AA direction;

[0039] Figure 6 It is a schematic top view of the structure of the annular support in the present invention;

[0040] Figure 7 for Figure 6 A magnified schematic diagram of the structure within the middle circle;

[0041] Figure 8 It is a schematic diagram of the top view of the structure of the cover plate;

[0042] Fig. 9 for Figure 8 Schematic diagram of the structural section along the AA direction;

[0043] Fig.10 It is a schematic top view of the structure of the front side after the main body is assembled between the cover plate and the annular bracket;

[0044] Fig.11 for Fig.10 Schematic diagram of the structural section along the AA direction;

[0045] Fig.12 It is a schematic top view of the structure of the back side of the main body after the cover plate and the annular bracket are assembled;

[0046] Fig.13 is a three-dimensional schematic diagram of a fiber holder in another embodiment;

[0047] Fig.14 for Fig.13 Partial view of

[0048] Fig.15 for Fig.14 AA cross-section diagram;

[0049] Fig.16 is a three-dimensional schematic diagram of a fiber holder after fixing conductive fibers in another embodiment;

[0050] Fig.17 17A is a schematic cross-sectional view of a fiber holder after installing conductive fibers, and 17B is a schematic cross-sectional view of a fiber holder after installing conductive fibers in another embodiment;

[0051] Fig.18 is a top view of an annular support in another embodiment;

[0052] Fig.19 is a cross-sectional view of Figure BB;

[0053] Fig. 20 for Fig.18 Stereoscopic diagram.

[0054] Reference numerals:

[0055] Main body 1; fiber accommodating hole 11; first anti-slip ring 12; fiber fixing ring 13; second anti-slip ring 14; first stress groove 15; second stress groove 16; guide end 17; conductive fiber 2; annular bracket 3; anti-slip position 31; mounting groove 32; front end groove 321; middle groove 322; rear end groove 323; cover plate 4; anti-slip buckle 41; slope 411; dustproof ring 5; R angle 6; fixing part 7; anti-slip part 8; mounting groove 9; first groove 91; second groove 92. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0057] like Figures 1 to 5 As shown, the present invention provides a fiber fixer, including a body 1, the 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), and a first anti-slip ring 12, a fiber fixing ring 13, and a second anti-slip ring 14 are sequentially arranged along the length direction of the body 1 and the circumference of the body 1; a first stress groove 15 is provided between the first anti-slip 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-slip ring 14, and the first stress groove 15 and the second stress groove 16 are both used to absorb the deformation caused by squeezing the fiber fixing ring 13.

[0058] The main body 1 has a fiber accommodating hole 11 that penetrates along the length direction. The fiber accommodating hole 11 is used to accommodate the conductive fiber 22. A first anti-slip ring 12, a fiber fixing ring 13, and a second anti-slip ring 14 are arranged in sequence along the length direction of the main body 1 and in the circumference of the main body 1. A first stress groove 15 is provided between the first anti-slip 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-slip ring 14. The first stress groove 15 and the second stress groove 16 are both used to absorb the deformation caused by squeezing the fiber fixing ring 13. When the conductive fiber 22 is installed, the conductive fiber 22 penetrates from one end of the fiber accommodating hole 11 and reaches the other end of the fiber accommodating hole 11. Preferably, the conductive fiber 22 protrudes to the outside of the other end of the fiber accommodating hole 11, and the conductive fiber 22 protrudes from the tail end of the main body 1 for buffering.

[0059] In practical applications, the second anti-slip ring 14 extends from one end away from the second stress groove 16 to form a guide end 17, and the fiber receiving hole 11 in the guide end 17 is horn-shaped, such as Figure 5As shown, it is used to guide the installation of the conductive fiber 22. After the conductive fiber 22 is installed inside the body 1, the fiber fixing ring 13 is squeezed by external force so that the fiber fixing ring 13 is deformed and retracted toward the axis of the fiber receiving hole 11, thereby pressing and fixing the conductive fiber 22. At the same time, the deformation of the fiber fixing ring 13 after being squeezed and deformed is absorbed by the first stress groove 15 and the second stress groove 16. Figure 4 , Figure 5 It is a schematic diagram of the conductive fiber 22 after being pressed and fixed.

[0060] The present invention also provides a conductive ring for protecting against electrical corrosion of a bearing, comprising an annular bracket 3 and a cover plate 4. The cover plate 4 can be matched and installed on the annular bracket 3 and 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 increase the anti-electrical corrosion function, a plurality of mounting grooves 32 can be provided, and the plurality of mounting grooves 32 are preferably evenly arranged on the annular bracket 3.

[0061] like Figure 6 , Figure 7 As shown, the mounting groove 32 can match and accommodate the fiber fixer, wherein the mounting groove 32 includes a front end groove 321, a middle groove 322 and a rear end groove 323, wherein the front end groove 321 matches and accommodates the second anti-slip ring 14, the middle groove 322 matches and accommodates the fiber fixing ring 13, and the rear end groove 323 matches and accommodates the first anti-slip ring 12.

[0062] Specifically, the outer diameters of the first anti-slip ring 12 and the second anti-slip ring 14 are both larger than the outer diameters of other parts of the main body 1 so that axial movement is not allowed after the main body 1 is installed in the installation groove 32, thereby increasing the firmness after installation. The outer diameters and shapes of the first anti-slip ring 12 and the second anti-slip ring 14 are preferably the same structure.

[0063] Furthermore, the first anti-slip ring 12, the second anti-slip ring 14, the bottom of the first stress groove 15, and the bottom of the second stress groove 16 are preferably cylindrical in shape, and the fiber fixing ring 13 is a cylindrical structure before extrusion, and its cross section is preferably polygonal after extrusion.

[0064] For ease of assembly, the ends of the first anti-slip ring 12, the fiber fixing ring 13, and the second anti-slip ring 14 are all chamfered. In practical applications, the connection between the cover plate 4 and the annular bracket 3 can adopt a variety of structures, and the cover plate 4 can be fixed on the annular bracket 3 by a variety of structural connection methods such as screw connection, clamping, welding or riveting.

[0065] Furthermore, the present invention also provides a motor equipped with the above-mentioned bearing electrical corrosion protection conductive ring of the present invention.

[0066] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 As shown, in the conductive ring for bearing electrical corrosion protection, a plurality of anti-dropout buckles 41 arranged in an annular interval are extended from the cover plate 4 on one side of the annular bracket 3. The anti-dropout buckles 41 are elastic structures. The outer diameter of the ring formed by the plurality of anti-dropout buckles 41 is larger than the inner diameter of the inner hole of the annular bracket 3. Preferably, the outer diameter of the ring formed by the plurality of anti-dropout buckles 41 is slightly larger than the inner diameter of the inner hole of the annular bracket 3 so that the anti-dropout buckles 41 can be elastically snapped onto the annular bracket 3 when the cover plate 4 is assembled into the annular bracket 3. The inner side of the side of the annular bracket 3 facing away from the cover plate 4 has an anti-dropout snapping position 31. When the cover plate 4 is assembled into the annular bracket 3, the plurality of anti-dropout buckles 41 can pass through the center hole of the annular bracket 3 and be matched and snapped onto the anti-dropout snapping position 31.

[0067] In this embodiment, the end of the anti-drop buckle 41 has a slope 411, which is used to guide the cover plate 4 to snap into the annular bracket 3; the inner ring of the annular bracket 3 is also provided with a dustproof ring 5, and the end of the conductive fiber 22 facing the center of the annular bracket 3 extends to the inside of the inner side of the dustproof ring 5, so as to facilitate contact with the electrically corroded parts and conduct away the charge in time.

[0068] See also Figures 13 to 15 As shown, a fiber fixer in another embodiment of the present invention comprises: a main body 1, wherein the main body 1 has a fiber accommodating hole 11 arranged along the length direction, that is, the main body 1 has a hollow structure, and the fiber accommodating hole 11 is used to accommodate the conductive fiber 2.

[0069] The body 1 includes an anti-slip portion 8 and a fixing portion 7; the fixing portion 7 and the anti-slip portion 8 are respectively hollow structures, and the fixing portion 7 and the anti-slip portion 8 are interconnected to form a fiber receiving hole 11 for receiving the conductive fiber 2. The anti-slip portion 8 is approximately located at the end of the body 1, and the fixing portion 7 is approximately located in the middle of the body 1. Of course, the anti-slip portion 8 can also be arranged approximately in the middle of the body 1, and the fixing portion 7 is approximately adjacent to the middle of the body 1.

[0070] The fixing part 7 and the anti-slip part 8 constitute the main body 1, and the fixing part 7 and the anti-slip part 8 are preferably an integral structure. The outer diameter of the anti-slip part 8 is larger than the outer diameter of the fixing part 7, and the anti-slip part 8 can be used to connect with the external conductive ring to support and fix the main body 1.

[0071] The fiber accommodating hole 11 passes through the body 1 or the fiber accommodating hole 11 is a solid hole in the body 1. For example, the fiber accommodating hole 11 is formed at least inside the fixing portion 7 and extends to the end of the body 1; the fiber accommodating hole 11 may completely pass through the body 1, or may only be a cavity formed in the body 1, but does not pass through the body 1. The fixing portion 7 and the anti-detachment portion 8 are cylindrical in the figure, and in other embodiments, they may also be other cylindrical shapes. The body 1 uses the fiber accommodating hole 11 to accommodate the conductive fiber, and the body 1 has a certain length, which provides radial restraint force in the axial direction to prevent the fiber bundle from falling over.

[0072] For example, the fixing portion 7 is a cylinder or a polygonal cylinder. For example, in the case of a polygonal cylinder, the fixing portion 7 may be a semi-open structure, and its cross section is U-shaped. When the fixing portion 7 is subjected to an external force, it is deformed so that the inner diameter of a portion of the fiber receiving hole 11 shrinks, so as to fix the conductive fiber 2 in the main body 1. Usually, the fiber fixer is made of metal material and has conductivity. The external force is usually applied in the form of extrusion, so that the fixing portion 7 is deformed after being pressed, and the aperture of the fiber receiving hole 11 inside the fixing portion 7 shrinks, so that the fiber is fixed in the fixing portion 7. After the fixing portion 7 is deformed by an external force, its cross section is at least polygonal. Fig.16 In the embodiment, the cylindrical fixing part 7 is pressed to form a hexagonal crimping surface. Of course, the fixing part 7 can also be directly pressed to deform it so as to cover and fix the conductive fiber 2.

[0073] In the present invention, the fiber fixer uses the fixing part 7 to fix the conductor fiber after deformation, providing an axial restraining force. The fixing part 7 fastens the conductive fiber to prevent the conductive fiber bundle from falling out, making the conductor fiber more secure.

[0074] Specifically, refer to Figures 13 to 15 As shown, the anti-slipping portion 8 includes a first anti-slipping ring 12 and a second anti-slipping ring 14, which are respectively arranged front and back on the body 1. The fixing portion 7 is located between the first anti-slipping ring 12 and the second anti-slipping ring 14.

[0075] Furthermore, the anti-slip portion 8 includes a first anti-slip portion and a second anti-slip portion, both of which may not be annular, but may be other shapes, and may be fixed to other structures, such as a polygonal shape, or a shape for snap connection, buckle connection, etc.

[0076] In other embodiments, it can be seen Fig.17 B. The anti-slip portion 8 may be provided with only one, for example, only including the first anti-slip ring 12 .

[0077] In an embodiment including a first anti-slip portion and a second anti-slip portion, a first stress groove 15 is provided between the first anti-slip ring 12 and the fixing portion 7, and a second stress groove 16 is provided between the fixing portion 7 and the second anti-slip ring 14. The first stress groove 15 and the second stress groove 16 (i.e., energy absorption grooves) are both used to absorb deformation caused by squeezing the fixing portion.

[0078] The present invention greatly improves the stability of the fiber holder in the mounting groove 9 by designing the first anti-slip ring 12, the fixing portion 7 and the second anti-slip ring 14 on the body 1, and facilitates assembly, thereby improving assembly efficiency.

[0079] Furthermore, an energy absorbing groove is provided between the fixing portion 7 and the anti-detachment portion 8 to reduce product deformation and warping, reduce the risk of fracture at the connection, and convert the shear force into a forward and backward extension force. In an optional embodiment, the length range of the first stress groove 15 and the second stress groove 16 is 4mm-4.2mm. Of course, the aforementioned length range can also be expanded or reduced accordingly according to the size requirements of the fiber fixture.

[0080] In order to prevent the fibers from being damaged and falling off, the open end of the fiber holder is also provided with an R angle. In one embodiment, the open end of the body 1 has an R angle; the conductive fibers 2 extend outward from the open end of the body 1. Figure 2 In another embodiment, the second anti-slip ring 12 is located at the front end of the body 1, and the opening end of the second anti-slip ring 12 has an R angle, as shown in FIG. Fig.15 In short, the conductive fiber 2 extends out of the fiber holder to form an R angle. Compared with the traditional C angle, which is an obtuse angle formed between two lines and easily causes the fiber to fall off, the R angle can prevent the fiber from being damaged and falling off.

[0081] See also Fig.17 The fiber holder further comprises a conductive fiber 2, and the fiber receiving hole 11 penetrates the body 1. At least one end of the conductive fiber 2 extends outward along the length of the body 1; Fig.17 In the embodiment, the conductive fiber 2 extends out of the front end and the rear end of the fiber holder. In other embodiments, the conductive fiber 2 may only extend out of the front end ( Fig.17 ).

[0082] The fiber holder body 1 is conductive, and the conductive fiber 2 is also conductive, and the conductivity of both can prevent the conductive ring from being corroded. The conductive ring for protecting the conductive ring from electrical corrosion of the bearing and the motor will be described in detail.

[0083] See also Figure 8 , Fig.18 , Fig.19As shown, the present invention also provides a bearing electrical corrosion protection conductive ring (or conductive ring), including an annular bracket 3 and a shell, the shell and the annular bracket 3 can adopt a variety of assembly structures, can be applicable to a variety of application scenarios, and have strong practicality. The shell can be matched and installed on the annular bracket 3, and the annular bracket 3 is provided with at least one mounting groove 9, and the mounting groove 9 is used to fix the fiber holder, and the fiber holder is nested in the mounting groove 9.

[0084] In the figure, the mounting grooves 9 are provided in multiple numbers, 12 in the figure, respectively arranged along the circumference of the annular support 3, so that the fibers extend into the fiber holder; the axial direction of the fiber holder is substantially the same as the radial direction of the annular support 3. The conductive fiber 2 fixed by the fiber holder points to the axis of the annular support 3.

[0085] The mounting groove 9 includes a first groove 91 adapted to the fixing portion 7 of the fiber fixture, and a second groove 92 adapted to the anti-dropout portion 8 of the fiber fixture. The diameter of the second groove 92 is slightly larger than the diameter of the first groove 91. It is similar to the front end groove 321 and the rear end groove 323 mentioned above.

[0086] When the fiber holder is fixed on the annular support 3, the second groove 92 has a slightly larger diameter than the first groove 91, so that the anti-dropout portion 8 of the fiber holder is engaged in the second groove 92 and the fiber holder is prevented from moving in the radial direction of the conductive ring.

[0087] Furthermore, the upper surface of the anti-detachment portion 8 of the fiber holder is slightly higher than the annular bracket 3. When the fiber holder is fixed on the annular bracket 3, the surface of the anti-detachment portion 8 of the fiber holder is slightly higher than the upper surface of the annular bracket 3. The largest diameter portion of the anti-detachment portion 8 forms a snap-fit ​​type with the mounting groove 9 of the annular bracket 3 to hold the terminal sleeve. The anti-detachment portion 8 is in close contact with the housing to prevent it from falling off during movement. The upper portion of the anti-detachment portion 8 protrudes from the annular bracket 3, so that it can fully contact the housing during assembly to achieve the purpose of electrical conduction.

[0088] Furthermore, the annular support 3 may be multi-layered, and a plurality of annular supports 3 may be arranged in one bearing electrical corrosion protection conductive ring.

[0089] After assembly, the conductive fiber 2 is fixed on the fiber holder, the end of the conductive fiber 2 is in interference contact with the shell, and the end of the fiber holder is in interference contact with the shell.

[0090] like Fig.19 , Fig. 20The length direction of the fiber holder points to the center of the conductive ring, so that when the fiber holder is arranged inside the annular bracket 3, the length direction of the conductive fiber 2 is consistent with the radial direction of the conductive ring, and the end of the conductive fiber 2 also points to the center of the conductive ring.

[0091] After the bearing electric corrosion protection conductive ring is installed on the motor, the output shaft of the motor is arranged inside the conductive ring, the end 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 tail 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 motor shell, and the shell is in interference contact with the outer surface of the motor. Therefore, the motor shaft and the conductive fiber 2, the fiber holder, and the motor shell form a low-resistance conduction loop, and when the motor is in use, the charge generated on the motor shaft can be easily conducted to the motor shell by the conductive ring, and the charge will not accumulate between the motor bearings to form a high voltage potential, thereby reducing the risk of electrical corrosion and extending the life of the motor bearings. Otherwise, the charge accumulates in the bearings to form electrical corrosion.

[0092] The present invention also provides a motor, which greatly improves the convenience of assembly by setting a mounting groove 9 between the annular bracket 3 and the shell and fixing the conductive fiber 2 through a fiber fixer whose shape matches the mounting groove 9. The motor has fewer installation steps, simple processing and assembly, and is also conducive to mass production.

[0093] Specifically, the motor includes a housing, in which a motor and a conductive fiber 2 arranged on a bearing electrical corrosion protection conductive ring are arranged, the output shaft of the motor is installed in the bearing electrical corrosion protection conductive ring, the front end of the conductive fiber 2 is in interference contact with the motor shaft, the tail end of the conductive fiber 2 is in interference contact with the housing, the body 1 of the fiber holder is in interference contact with the housing, and the housing is in interference contact with the motor; wherein the housing is connected to the housing, both are metal and have conductivity; the body 1 of the fiber holder and the housing are both conductive. The motor shaft and the conductive fiber 2, the fiber holder, and the motor housing form a low-resistance conduction loop, when the motor is in use, the charge generated on the motor shaft will be easily conducted to the motor housing by the conductive ring, and the charge will not accumulate between the motor bearings to form a high voltage potential, thereby reducing the risk of electrical corrosion and extending the life of the motor bearings; at the same time, a new structural solution is provided for the bearing electrical corrosion protection conductive ring.

[0094] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conductive ring for protecting bearing from electrical corrosion, characterized in that: The invention comprises a support, a conductive fiber and a fiber holder installed on the support; the fiber holder comprises: a body, the body is conductive, and a fiber receiving hole is arranged along the length direction inside the body, and the fiber receiving hole is used to receive the conductive fiber; the body comprises an anti-slipping part and a fixing part; the fixing part and the anti-slipping part form the body, and the outer diameter of the anti-slipping part is larger than the outer diameter of the fixing part, and the fiber receiving hole is at least formed inside the fixing part and extends to the end of the body; the fixing part is deformed after being subjected to an external force, so that the inner diameter of part of the fiber receiving hole shrinks, so as to fix the conductive fiber in the body; The fixing portion is deformed when subjected to external force, so that the inner diameter of part of the fiber receiving hole shrinks to cover and fix the conductive fiber. A stress groove is provided between the anti-detachment portion and the fixing portion to absorb the deformation caused by squeezing the fixing portion.

2. The conductive ring for protecting bearing from electrical corrosion according to claim 1, characterized in that: The anti-dropping portion is approximately located at the end of the body, and the fixing portion is approximately located at the middle of the body.

3. The conductive ring for protecting bearing from electrical corrosion according to claim 1, characterized in that: The open end of the body has an R angle; the conductive fibers extend outward from the open end of the body.

4. The conductive ring for protecting bearing from electrical corrosion according to any one of claims 1 to 3, characterized in that: The anti-slip portion includes a first anti-slip ring and a second anti-slip ring, and the fixing portion is located between the first anti-slip ring and the second anti-slip ring.

5. The conductive ring for protecting bearing from electrical corrosion according to claim 4, characterized in that: The second anti-slip ring is located at the front end of the body, and the opening end of the second anti-slip ring has an R angle.

6. The conductive ring for protecting bearing from electrical corrosion according to claim 4, characterized in that: A first stress groove is provided between the first anti-slip ring and the fixing portion, and a second stress groove is provided between the fixing portion and the second anti-slip ring. Both the first stress groove and the second stress groove are used to absorb the deformation generated by squeezing the fixing portion.

7. The conductive ring for protecting bearing from electrical corrosion according to claim 1, characterized in that: The fixing portion is a cylinder or a polygonal cylinder.

8. The conductive ring for protecting bearing from electrical corrosion according to claim 1, characterized in that: The fiber receiving hole penetrates the body, or is a cavity formed in the body but does not penetrate the body.

9. The conductive ring for protecting bearing from electrical corrosion according to claim 1, characterized in that: There is only one anti-fall-off portion.

10. The conductive ring for protecting bearing from electrical corrosion according to claim 1, characterized in that: After the fixing portion is deformed by external force, its cross section becomes polygonal.

11. The conductive ring for protecting bearing from electrical corrosion according to claim 1, characterized in that: The fiber receiving hole passes through the body, and at least one end of the conductive fiber extends outward along the length of the body.

12. The conductive ring for protecting bearing from electrical corrosion according to claim 1, characterized in that: The bracket is an annular bracket, and at least one mounting groove is provided on the annular bracket, and the mounting groove is used to fix the fiber holder.

13. The conductive ring for protecting bearing from electrical corrosion according to claim 12, characterized in that: There are a plurality of mounting grooves arranged along the circumference of the annular support, and the axial direction of the fiber holder is substantially the same as the radial direction of the annular support.

14. The conductive ring for protecting bearing from electrical corrosion according to claim 12, characterized in that: The mounting groove includes a first groove adapted to the fixing portion of the fiber fixture, and a second groove adapted to the anti-dropping portion of the fiber fixture.

15. The conductive ring for protecting bearing from electrical corrosion according to claim 14, characterized in that: The diameter of the second groove is slightly larger than the diameter of the first groove.

16. The conductive ring for protecting bearing from electrical corrosion according to claim 12, characterized in that: It also includes a shell, which can be matched and installed on the annular bracket. The upper surface of the anti-detachment part of the fiber fixture is slightly higher than the annular bracket, and the anti-detachment part is in close contact with the shell.

17. The conductive ring for protecting bearing from electrical corrosion according to claim 12, characterized in that: It also includes a shell, which can be matched and installed on the annular bracket. The fiber holder is fixed with conductive fibers, and the ends of the conductive fibers are in interference contact with the shell. The ends of the fiber holder are in interference contact with the shell.

18. The conductive ring for protecting bearing from electrical corrosion according to claim 12, characterized in that: The invention comprises a plurality of annular supports which are arranged in layers in a conductive ring for protecting against electrical corrosion of a bearing.

19. A conductive ring for protecting bearing from electrical corrosion, characterized in that: The invention comprises an annular support, a conductive fiber and a cover plate, wherein the cover plate can be matched and mounted on the annular support and together form at least one mounting groove, wherein the mounting groove is arranged along the radial direction of the annular support; the mounting groove is used to fix a fiber holder; wherein the fiber holder comprises: A body, wherein the body is conductive, and has a fiber accommodating hole arranged along the length direction inside the body, and the fiber accommodating hole is used to accommodate the conductive fiber; the body comprises an anti-detachment part and a fixing part; the fixing part and the anti-detachment part constitute the body, and the outer diameter of the anti-detachment part is greater than the outer diameter of the fixing part, and the fiber accommodating hole is at least formed inside the fixing part and extends to the end of the body; the fixing part is deformed after being subjected to an external force, so that the inner diameter of part of the fiber accommodating hole shrinks, so as to fix the conductive fiber in the body; The fixing portion is deformed when subjected to external force, so that the inner diameter of part of the fiber receiving hole shrinks to cover and fix the conductive fiber. A stress groove is provided between the anti-detachment portion and the fixing portion to absorb the deformation caused by squeezing the fixing portion.

20. The conductive ring for protecting bearings from electrical corrosion according to claim 19, characterized in that: The cover plate extends from one side of the annular bracket to form a plurality of anti-dropout buckles arranged in a ring-shaped interval, and the inner side of the side of the annular bracket facing away from the cover plate has an anti-dropout position, and the plurality of anti-dropout buckles can pass through the center hole of the annular bracket and match and buckle on the anti-dropout position.

21. The conductive ring for protecting bearings from electrical corrosion according to claim 20, characterized in that: The end of the anti-drop buckle has a slope surface, and the slope surface is used to guide the cover plate to be buckled into the annular bracket.

22. A motor, comprising a bearing electrical corrosion protection conductive ring, the bearing electrical corrosion protection conductive ring comprising conductive fibers, an annular support, and mounting grooves arranged along the radial direction of the annular support; the mounting grooves are used to fix the fiber holder; wherein, The fiber holder comprises: A body, wherein the body is conductive, and has a fiber accommodating hole arranged along the length direction inside the body, and the fiber accommodating hole is used to accommodate the conductive fiber; the body comprises an anti-detachment part and a fixing part; the fixing part and the anti-detachment part constitute the body, and the outer diameter of the anti-detachment part is greater than the outer diameter of the fixing part, and the fiber accommodating hole is at least formed inside the fixing part and extends to the end of the body; the fixing part is deformed after being subjected to an external force, so that the inner diameter of part of the fiber accommodating hole shrinks, so as to fix the conductive fiber in the body; The fixing portion is deformed when subjected to external force, so that the inner diameter of part of the fiber receiving hole shrinks to cover and fix the conductive fiber. A stress groove is provided between the anti-detachment portion and the fixing portion to absorb the deformation caused by squeezing the fixing portion.

23. The electric machine according to claim 22, characterized in that It also includes a conductive fiber arranged on a conductive ring for protecting against electric corrosion of the bearing, the output shaft of the motor is installed in the conductive ring for protecting against electric corrosion of the bearing, the front end of the conductive fiber is in interference contact with the motor shaft, the tail end of the conductive fiber is in interference contact with the outer shell of the conductive ring for protecting against electric corrosion of the bearing, the body of the fiber holder is in interference contact with the outer shell, and the outer shell is in interference contact with the motor; wherein the outer shell is conductive.

Images