CN218386131U - Conducting ring and motor - Google Patents
Conducting ring and motor Download PDFInfo
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- CN218386131U CN218386131U CN202222929919.1U CN202222929919U CN218386131U CN 218386131 U CN218386131 U CN 218386131U CN 202222929919 U CN202222929919 U CN 202222929919U CN 218386131 U CN218386131 U CN 218386131U
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Abstract
The utility model provides a conducting ring and a motor, which comprises a conducting ring body and conducting fibers, wherein fiber holes are radially arranged on the conducting ring body, the conducting fibers are implanted in the fiber holes, and at least one end of each conducting fiber extends out of the fiber holes; the side wall of the fiber hole is provided with a pressing part, the pressing part protrudes towards the inside of the fiber hole and is abutted against the conductive fiber, and the pressing part and the abutted surface of the conductive fiber are in a wave shape. Through the portion of compressing tightly that compresses tightly at the radial pressure of conducting ring body with the conductive fiber fastening installation at the spacing downthehole of conducting ring body, and act on the wave butt face of conductive fiber's height fluctuation with the help of the portion of compressing tightly, realize the crimping mode of the portion of compressing tightly many times conductive fiber, help solving the fastening problem between solid and the thin fiber, do not need additionally to use glue to assist fixedly, make the conducting ring can be applicable to the motor of oil cooling environment.
Description
Technical Field
The utility model relates to a conducting ring structural design technical field specifically relates to a conducting ring and motor.
Background
Due to the switching characteristics of the variable frequency drive motor, the on-axis voltage is always not 0. The shaft voltage is too high, and the bearing oil film can be broken down, so that the bearing is damaged. Especially becomes a pain point in the industries of new energy automobiles, wind power, rail transit and the like.
At present, a conducting ring is generally arranged on a motor bearing so as to prevent a bearing oil film from being broken down due to an overlarge shaft voltage.
Chinese patent document CN206452258U discloses an ultra-thin side circuit conductive ring, which includes an annular outer cover and a conductive member disposed on the annular outer cover, where the conductive member includes a conductive fiber bundle and a conductive sleeve for fixing the conductive fiber bundle, a fixing member for fixing the conductive sleeve is disposed on the annular outer cover, the conductive fiber bundle is in interference contact with a motor shaft, a tail end of a B part of the fiber bundle is soaked with a conductive adhesive, and the conductive sleeve is a copper sleeve.
The conducting ring in the prior art has the following defects that the conducting ring has a part to be improved:
1. the fixing of the conductive fiber bundle needs to be assisted by glue, and the glue is not oil-resistant and cannot be used on a motor in an oil-cooling environment.
2. The conductive fibers have low conductivity and have limited effect when the motor uses a non-insulated bearing.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a conducting ring and motor.
According to the utility model, the conducting ring comprises a conducting ring body and conducting fibers, wherein fiber holes are radially formed in the conducting ring body, the conducting fibers are implanted into the fiber holes, and at least one end of each conducting fiber extends out of the fiber holes; the side wall of the fiber hole is provided with a pressing part, the pressing part protrudes towards the inside of the fiber hole and is abutted against the conductive fiber, and the pressing part and the abutted surface of the conductive fiber are in a wave shape.
Preferably, the fiber hole includes a through hole, and one end of the conductive fiber extends to the inside of the conductive ring body; or one end of the conductive fiber extends to the outside of the conductive ring body; or one end of the conductive fiber extends to the inside of the conductive ring body, and the other end of the conductive fiber extends to the outside of the conductive ring body.
Preferably, the pressing part is positioned on the side wall of the fiber hole in the axial direction of the conductive ring body.
Preferably, the conductive fiber is composed of a plurality of conductive monofilaments, each conductive monofilament comprises a core layer and an outer layer, and the outer layer is provided with one or more layers outside the core layer; the core layer comprises carbon fiber monofilaments or polymer fiber monofilaments; the outer layer comprises a gold layer, a silver layer, a copper layer, a nickel layer, a zinc layer or an iron layer.
Preferably, the conductive ring body comprises an aluminum alloy ring, a copper alloy ring, or a stainless steel ring.
Preferably, one radial outer surface of the conducting ring body is provided with pressing grooves, and the pressing grooves correspond to the fiber holes one to one.
According to the utility model, the motor also comprises a motor shell and a motor spindle, and the conductive fiber on the conductive ring body extends out of the conductive ring body; the conducting ring body is in interference fit with the motor spindle, and one end, far away from the conducting ring body, of the conducting fiber is in interference fit with the motor shell.
According to the utility model, the motor also comprises a motor shell and a motor spindle, and the conductive fiber on the conductive ring body extends to the inner side of the conductive ring body; the conducting ring body is fixedly connected with the motor shell, and one end, far away from the conducting ring body, of the conducting fiber is in interference fit with the motor spindle.
According to the utility model provides a motor, still include the motor main shaft, be provided with the shaft hole on the motor main shaft, be provided with the oil circuit pipeline in the shaft hole, conductive fiber on the conducting ring body stretches out to the conducting ring body outside; the conducting ring body is fixedly connected with the outer wall of the oil pipeline, and one end, far away from the conducting ring body, of the conducting fiber is in interference fit with the side wall of the shaft hole.
According to the utility model provides a motor, still include the motor main shaft, be provided with the shaft hole on the motor main shaft, be provided with the oil circuit pipeline in the shaft hole, conductive fiber on the conducting ring body stretches out to the conducting ring body inboard; the conducting ring body is in interference fit with the side wall of the shaft hole, and one end, far away from the conducting ring body, of the conducting fiber is in interference fit with the outer wall of the oil pipeline.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a portion of compressing tightly at the radial pressure of conducting ring body is installed the conducting fiber fastening in the spacing downthehole of conducting ring body, and acts on the wave butt face of conducting fiber's height fluctuation with the help of the portion that compresses tightly, realizes the crimping mode that the portion that compresses tightly is to conducting fiber elasticity many times, helps solving the fastening problem between solid and the thin fiber bundle, does not need additionally to use glue to assist fixedly, makes the conducting ring can be applicable to the motor of oil cooling environment.
2. The utility model sets the conductive fiber monofilament into a multilayer structure, the core layer comprises carbon fiber or polymer fiber, and the outer layer comprises a gold layer, a silver layer, a copper layer, a nickel layer, a zinc layer or an iron layer; the conductive fiber is beneficial to improving the conductive performance of the conductive fiber, and can achieve good effect under the condition that the motor uses a non-insulated bearing.
3. The utility model discloses a conducting ring body and motor spindle installation, conductive fiber and motor housing installation, or, conducting ring body and motor housing installation, conductive fiber and motor spindle installation have realized the installation of conducting ring under different conditions, help improving the suitability of conducting ring.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a top view of the present invention showing the overall structure of the conductive ring;
FIG. 2 is a cross-sectional view of the present invention showing the overall structure of the conductive ring;
FIG. 3 is a schematic view of the cross-sectional structure of the conductive fiber according to the present invention;
FIG. 4 is a schematic view of the present invention mainly showing the connection structure between the conductive fiber and the conductive ring body;
fig. 5 is a top view of a conducting ring and motor mounting structure according to a second embodiment of the present invention;
fig. 6 is a sectional view of a conducting ring and motor mounting structure according to a second embodiment of the present invention;
fig. 7 is a top view of a conducting ring and motor mounting structure according to a third embodiment of the present invention;
FIG. 8 is a cross-sectional view of a third embodiment of a ring and motor mounting arrangement in accordance with the present invention;
FIG. 9 is a top view of a fourth embodiment of a conductive ring and motor mounting structure of the present invention;
fig. 10 is a cross-sectional view of a conductive ring and motor mounting structure in accordance with a fourth embodiment of the present invention;
fig. 11 is a top view of a conductive ring and motor mounting structure in accordance with a fifth embodiment of the present invention;
fig. 12 is a sectional view of a fifth embodiment of the present invention, showing a structure for mounting a conducting ring and a motor.
Reference numerals are as follows:
conducting ring body 1 indent 5
Outer layer 22 shaft hole 8
Fiber hole 3 oil line pipe 9
Pressing part 4
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Example one
As shown in fig. 1, fig. 2 and fig. 3, the conductive ring according to the present invention includes a conductive ring body 1 and conductive fibers 2. The conducting ring body 1 is circular, and the conducting ring body 1 comprises an aluminum alloy ring, a copper alloy ring or a stainless steel ring. The conductive fiber 2 is in a slender strip shape, the conductive fiber 2 is composed of a plurality of conductive monofilaments, each conductive monofilament comprises a core layer 21 and an outer layer 22, and one or more layers of the outer layers 22 are arranged outside the core layer 21. The core layer 21 includes carbon fiber monofilaments or polymer fiber monofilaments; the outer layer 22 comprises a gold, silver, copper, nickel, zinc or iron layer. One possible implementation of the present application is: the conductive ring body 1 is an aluminum alloy ring, the conductive fiber 2 comprises a core layer 21 and three outer layers 22, the core layer 21 is a carbon fiber layer, and the three outer layers 22 are a nickel layer, a copper layer and a silver layer from inside to outside in sequence.
Specifically, the conductive ring body 1 is radially provided with fiber holes 3, the conductive fibers 2 are implanted in the fiber holes 3, and at least one end of each conductive fiber 2 extends out of the fiber hole 3. One possible implementation is: the conductive ring body 1 is provided with a plurality of fiber holes 3 at equal intervals along the circumferential side of the conductive ring body 1, and the conductive fibers 2 correspond to the fiber holes 3 one by one.
As shown in fig. 2 and 4, the present application is particularly important: conductive fiber 2 and fibre hole 3 are the crimping cooperation, are formed with on the lateral wall of fibre hole 3 and compress tightly portion 4, compress tightly portion 4 to fibre hole 3 inside protrusion and with conductive fiber 2 butt, and compress tightly portion 4 and conductive fiber 2's butt personally submit the wave. The pressing connection mode that the pressing part 4 loosens and tightens the conductive fiber 2 for many times is realized by the aid of the wavy abutting surface of the pressing part 4 acting on the conductive fiber 2, and the fastening problem between a solid and the fine fiber can be effectively solved. Do not need extra practical glue to assist fixedly to make the conducting ring can be applicable to on the oil-cooled motor.
Preferably, the pressing portion 4 is located on the sidewall of the fiber hole 3 in the axial direction of the conductive ring body 1. In actual processing, because the metal has certain ductility, can adopt the pressure head to carry out the deepening on conducting ring body 1 and form the portion of compressing tightly 4, because fibre hole 3 sets up in conducting ring body 1's radial, for the ease of the processing of portion of compressing tightly 4 to the selection carries out the deepening to the axial of conducting ring body 1 and forms the portion of compressing tightly 4. When the pressing depth is carried out, the pressing part 4 can be in a wave shape with the butting surface of the conductive fiber 2 by adopting a wave-shaped pressing head.
Furthermore, one conducting ring body 1 of the conducting ring body 1 is provided with pressing grooves 5, and the pressing grooves 5 correspond to the fiber holes 3 one by one. The radial outer surface of the conductive ring body 1 where the pressing groove 5 is located is the radial outer surface of the conductive ring body 1 which is pressed to form the pressing part 4.
More specifically, the fiber hole 3 includes a through hole, and one end of the conductive fiber 2 extends to the inside of the conductive ring body 1; or, one end of the conductive fiber 2 extends to the outside of the conductive ring body 1; alternatively, one end of the conductive fiber 2 extends into the conductive ring main body 1, and the other end of the conductive fiber 2 extends to the outside of the conductive ring main body 1. This application electrically conductive fiber 2 can carry out nimble selection according to operating condition from the direction of the outside extension of fibre hole 3.
Example two
As shown in fig. 5 and fig. 6, according to the first embodiment, the motor provided by the present invention further includes a motor housing 6 and a motor spindle 7, wherein the conductive fiber 2 on the conductive ring body 1 extends to the outside of the conductive ring body 1. The conducting ring body 1 is in interference fit with the motor spindle 7, and one end of the conducting fiber 2, far away from the conducting ring body 1, is in interference fit with the motor shell 6.
The motor is started, the motor spindle 7 rotates to drive the conducting ring body 1 to rotate, the conducting fibers 2 brush the motor shell 6, and electric charges are conveyed to the motor shell 6 through the conducting ring body 1 and the conducting fibers 2.
EXAMPLE III
As shown in fig. 7 and fig. 8, according to the first embodiment of the present invention, the motor further includes a motor casing 6 and a motor spindle 7, and the conductive fiber 2 on the conductive ring body 1 extends to the inner side of the conductive ring body 1. The conducting ring body 1 is fixedly connected with the motor shell 6, and one end of the conducting fiber 2, far away from the conducting ring body 1, is in interference fit with the motor spindle 7.
The conducting ring body 1 and the motor housing 6 may be connected by means of fasteners such as screws, bolts, or by directly interference-fitting the conducting ring body 1 and the motor housing 6.
The motor is started, the motor spindle 7 rotates, the conductive fiber 2 brushes the outer wall of the motor spindle 7, and electric charges are conveyed to the motor shell 6 through the conductive fiber 2 and the conductive ring body 1.
Example four
As shown in fig. 9 and fig. 10, according to the first embodiment of the present invention, the motor further includes a motor spindle 7, a shaft hole 8 is formed in the motor spindle 7, an oil pipeline 9 is formed in the shaft hole 8, and the conductive fiber 2 on the conductive ring body 1 extends out of the conductive ring body 1. The conducting ring body 1 is fixedly connected with the outer wall of the oil pipeline 9, and one end of the conducting fiber 2, far away from the conducting ring body 1, is in interference fit with the side wall of the shaft hole 8.
When the motor is started, the motor spindle 7 rotates, the conductive fibers 2 brush the inner wall of the shaft hole 8 from inside to outside, and charges are conveyed to the shell through the conductive fibers 2, the conductive ring body 1 and the oil pipeline 9.
EXAMPLE five
As shown in fig. 11 and 12, according to the first embodiment, the motor provided by the present invention adopts the conductive ring of the first embodiment, and further includes a motor spindle 7, a shaft hole 8 is provided on the motor spindle 7, an oil pipeline 9 is provided in the shaft hole 8, and the conductive fiber 2 on the conductive ring body 1 extends to the inside of the conductive ring body 1. The conducting ring body 1 is in interference fit with the side wall of the shaft hole 8, and one end of the conducting fiber 2, far away from the conducting ring body 1, is in interference fit with the outer wall of the pipeline.
When the motor is started, the motor spindle 7 rotates to drive the conducting ring body 1 to rotate, the conducting fibers 2 rotate to brush the outer wall of the oil way pipeline 9, and electric charges are conveyed to the shell through the conducting ring body 1, the conducting fibers 2 and the oil way pipeline 9.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. The conducting ring is characterized by comprising a conducting ring body (1) and conducting fibers (2), wherein fiber holes (3) are formed in the conducting ring body (1) in the radial direction, the conducting fibers (2) are implanted into the fiber holes (3), and at least one end of each conducting fiber (2) extends out of the fiber holes (3);
the side wall of the fiber hole (3) is provided with a pressing part (4), the pressing part (4) protrudes towards the inside of the fiber hole (3) and is abutted against the conductive fiber (2), and the abutting surfaces of the pressing part (4) and the conductive fiber (2) are wavy.
2. The conductive ring according to claim 1, characterized in that the fiber holes (3) comprise through holes, one end of the conductive fiber (2) extending inside the conductive ring body (1);
or one end of the conductive fiber (2) extends to the outside of the conductive ring body (1);
or one end of the conductive fiber (2) extends to the inside of the conductive ring body (1), and the other end of the conductive fiber (2) extends to the outside of the conductive ring body (1).
3. The conductive ring according to claim 1, characterized in that the pinched portion (4) is located on the sidewall of the fiber hole (3) in the axial direction of the conductive ring body (1).
4. The conductive loop according to claim 1, characterized in that the conductive fiber (2) consists of a plurality of conductive filaments comprising a core layer (21) and an outer layer (22), the outer layer (22) being provided with one or more layers outside the core layer (21);
the core layer (21) comprises carbon fiber monofilaments or polymer fiber monofilaments;
the outer layer (22) comprises a gold layer, a silver layer, a copper layer, a nickel layer, a zinc layer or an iron layer.
5. A conductive ring according to claim 1, characterized in that the conductive ring body (1) comprises an aluminum alloy ring, a copper alloy ring or a stainless steel ring.
6. The conductive ring according to claim 1, wherein a radial outer surface of the conductive ring body (1) is provided with pressure grooves (5), and the pressure grooves (5) correspond to the fiber holes (3) one to one.
7. An electrical machine, characterized in that the conductive ring of any one of claims 1-6 is used, and further comprises a motor casing (6) and a motor spindle (7), and the conductive fibers (2) on the conductive ring body (1) extend to the outside of the conductive ring body (1);
the conducting ring body (1) is in interference fit with the motor spindle (7), and one end, far away from the conducting ring body (1), of the conducting fiber (2) is in interference fit with the motor shell (6).
8. An electric machine, characterized in that the conductive ring of any one of claims 1-6 is adopted, and further comprises a motor casing (6) and a motor spindle (7), and the conductive fibers (2) on the conductive ring body (1) extend to the inner side of the conductive ring body (1);
the conducting ring body (1) is fixedly connected with the motor shell (6), and one end, far away from the conducting ring body (1), of the conducting fiber (2) is in interference fit with the motor spindle (7).
9. An electric motor, characterized in that the conductive ring of any one of claims 1 to 6 is adopted, and further comprises a motor spindle (7), a shaft hole (8) is arranged on the motor spindle (7), an oil pipeline (9) is arranged in the shaft hole (8), and the conductive fibers (2) on the conductive ring body (1) extend out of the conductive ring body (1);
the conducting ring is characterized in that the conducting ring body (1) is fixedly connected with the outer wall of the oil pipeline (9), and one end, far away from the conducting ring body (1), of the conducting fiber (2) is in interference fit with the side wall of the shaft hole (8).
10. An electric motor, characterized in that the conducting ring of any one of claims 1-6 is adopted, and further comprises a motor main shaft (7), a shaft hole (8) is arranged on the motor main shaft (7), an oil pipeline (9) is arranged in the shaft hole (8), and the conducting fibers (2) on the conducting ring body (1) extend out to the inner side of the conducting ring body (1);
the conducting ring body (1) is in interference fit with the side wall of the shaft hole (8), and one end, far away from the conducting ring body (1), of the conducting fiber (2) is in interference fit with the outer wall of the oil pipeline (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222929919.1U CN218386131U (en) | 2022-11-03 | 2022-11-03 | Conducting ring and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222929919.1U CN218386131U (en) | 2022-11-03 | 2022-11-03 | Conducting ring and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218386131U true CN218386131U (en) | 2023-01-24 |
Family
ID=84938197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222929919.1U Active CN218386131U (en) | 2022-11-03 | 2022-11-03 | Conducting ring and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218386131U (en) |
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2022
- 2022-11-03 CN CN202222929919.1U patent/CN218386131U/en active Active
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