CN115864085A - Rotary conductive device - Google Patents
Rotary conductive device Download PDFInfo
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- CN115864085A CN115864085A CN202310148521.0A CN202310148521A CN115864085A CN 115864085 A CN115864085 A CN 115864085A CN 202310148521 A CN202310148521 A CN 202310148521A CN 115864085 A CN115864085 A CN 115864085A
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Abstract
The invention discloses a rotary conductive device, which is used for transmitting electric energy between a rotating part and a static part; the rotating conductive device comprises a rotating part and a fixing part. The rotating part is connected with the rotating part, is equipped with first conduction structure and first ball structure on the rotating part, and the rotating part is through first conduction structure and first ball structural connection. The rotating part is rotatably connected with the fixed part and is limited to rotate at a fixed position, and the fixed part is provided with a second conduction structure; a first conductive part is provided on the fixed part between the rotating part and the fixed part, and the stationary part is connected to the first conductive part through a second conductive structure. When the rotating part rotates, the first ball structure keeps rolling contact with the first conductive part, so that the rotating part and the static part are kept electrically connected. The invention has stable and reliable structure, and can effectively replace a slip ring to transmit electric energy between a rotating part and a static part, thereby avoiding the problem of slip ring friction loss.
Description
Technical Field
The invention relates to the technical field of conductive devices, in particular to a rotary conductive device.
Background
A large amount of renewable mechanical energy which is easy to convert exists in the natural environment, and the rotary motion is used as basic mechanical motion, and the conversion and collection of the basic mechanical motion are common renewable mechanical energy utilization means. Wherein, the rotational energy collecting device is a device for collecting rotational mechanical energy.
In prior art rotary energy harvesting devices, slip rings are typically mounted at the center of rotation of the device. When the device works, the slip ring transfers electric energy between the rotating part and the static part by utilizing rolling or sliding contact, electrostatic coupling or electromagnetic coupling of the first conductive part.
The current slip ring device consists of an electric brush and a conductive slip ring, adopts a structure that a carbon brush is tightly close to a copper ring, and has the function limited to transmitting large current. Moreover, a large amount of carbon alloy powder is generated due to the friction of the parts, the parts have the problem of friction loss, the carbon brush needs to be cleaned and replaced regularly, and the problems of reliability and service life are generally existed.
Disclosure of Invention
The embodiment of the invention provides a rotary conductive device, which aims to solve the technical problems that in the prior art, a slip ring device generates a large amount of carbon alloy powder due to part friction, the parts have friction loss, and carbon brushes need to be cleaned and replaced regularly.
In order to solve the above technical problems, in one aspect, an embodiment of the present invention provides a rotary conductive device for transmitting electric energy between a rotating member and a stationary member; the rotary conductive device includes:
the rotating part is connected with the rotating part, a first conduction structure and a first ball structure are arranged on the rotating part, and the rotating part is connected with the first ball structure through the first conduction structure; and
the rotating part is rotatably connected with the fixed part and is limited to rotate at a fixed position, and the fixed part is provided with a second conduction structure; a first conductive part is provided on the fixed part between the rotating part and the fixed part, and the stationary part is connected to the first conductive part through the second conductive structure;
wherein, when the rotating part rotates, the first ball structure is kept in rolling contact with the first conductive part, so that the rotating part and the static part are kept electrically connected.
In some embodiments, the rotating part is further provided with a third conducting structure and a second ball structure, and the rotating part is connected with the second ball structure through the third conducting structure; a second conductive part is further arranged on the fixed part between the rotating part and the fixed part, a fourth conductive structure is further arranged on the fixed part, and the static part is connected with the second conductive part through the fourth conductive structure;
wherein, when the rotating part rotates, the second ball structure maintains rolling contact with the second conductive part, so that the rotating part and the stationary part maintain electrical connection.
In some embodiments, the rotary part has a rotary connection provided on its axis of rotation;
the first conduction structure is arranged on the front end face of the rotating part and located on the outer side of the rotating connecting part, and the first ball structure is arranged on the side end of the rotating part;
the third conduction structure is arranged at the front end of the rotating connection part, and the second ball structure is arranged at the rear end of the rotating connection part.
In some embodiments, the first via structure comprises an opening;
the first ball structure comprises a first screw and a first ball, a first screw hole is formed in the rotating portion and communicated with the opening hole, the first screw hole extends to the side end of the rotating portion in the radial direction of the rotating portion, the first screw is in threaded connection with the first screw hole, and the first ball is rotatably connected to the tail end of the first screw and protrudes out of the side end of the rotating portion.
In some embodiments, the first conductive part having a ring shape is laid on the fixed part and arranged along a movement locus of the first ball.
In some embodiments, the second conduction structure includes a first lead-out hole, an inner end of the first lead-out hole is connected to the first conductive portion and an outer end of the first lead-out hole is exposed to the fixing portion.
In some embodiments, the third conduction structure includes a socket provided at a front end of the rotation connection portion and extending in an axial direction of the rotation portion;
the second ball structure includes second screw rod and second ball, the rear end of rotating connecting portion is equipped with the second screw, the second screw intercommunication the jack is followed the axial extension of rotating part, the second screw rod spiro union the second screw, the second ball rotates to be connected the end of second screw rod is outstanding the rear end of rotating connecting portion.
In some embodiments, the fourth conducting structure includes a concave hole and a second guiding-out hole, the concave hole is disposed on a side of the fixing portion facing the rotating portion, the second ball is matched with the concave hole, and an inner end of the second guiding-out hole is communicated with the concave hole and an outer end thereof is exposed out of the fixing portion;
the second conductive part is laid in the concave hole and attached to the inner wall of the concave hole.
In some embodiments, the first and/or second conductive portions are conductive cloths.
In some embodiments, a ceramic bearing is fixedly disposed on the fixed portion, and the rotating portion is rotatably connected to the fixed portion through the ceramic bearing.
The embodiment of the invention has the following beneficial effects: the rotary conductive device realizes the function of transmitting electric energy between the rotating part and the static part by utilizing the rolling contact between the first ball structure and the first conductive part, so the rotary conductive device has stable and reliable structure, can effectively replace a slip ring to transmit electric energy between the rotating part and the static part, and further avoids the problem of friction loss of the slip ring.
Drawings
FIG. 1 is a schematic structural diagram of a rotary conductive device according to a first embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A shown in FIG. 1;
FIG. 3 is a top view of a second embodiment of a rotary conductive apparatus of the present invention;
fig. 4 is a schematic view of the structure of the rotation part in fig. 3.
The reference numbers illustrate:
100. a rotating part; 110. a first conducting structure; 120. a first ball structure; 121. a first screw; 122. a first ball bearing; 130. a third conducting structure; 140. a second ball structure; 141. a second screw; 142. a second ball bearing; 150. a rotation connecting part; 160. a first screw hole; 170. a second screw hole; 200. a fixed part; 210. a second conduction structure; 220. a first conductive portion; 230. a second conductive portion; 240. a fourth conducting structure; 241. concave holes; 242. a second lead-out hole; 250. a ceramic bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Descriptions in this specification as relating to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to any indicated technical feature or quantity. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
One embodiment of the present invention, as shown in fig. 1 and 2, provides a rotary electrical conducting device for transferring electrical energy between a rotating member and a stationary member. The rotary conductive device includes a rotary part 100 and a fixed part 200. Alternatively, the rotating part 100 is a rotating disk. The fixing portion 200 is a fixing base made of a resin material. The rotating portion 100 is disposed in the fixing portion 200, so that the fixing portion 200 provides external protection for the rotating portion 100 and protects the rotating portion 100 from external environment during movement.
The rotating portion 100 is connected to the rotating member, the rotating portion 100 is provided with a first conduction structure 110 and a first ball structure 120, and the rotating member is connected to the first ball structure 120 through the first conduction structure 110.
The fixed portion 200 is connected to a stationary member, the rotating portion 100 is rotatably connected to the fixed portion 200 and is restricted to rotate at a fixed position, and the fixed portion 200 is provided with a second conduction structure 210. Between the rotating part 100 and the stationary part 200, a first conductive part 220 is provided on the stationary part 200, and the stationary part is connected to the first conductive part 220 through a second conductive structure 210.
When the rotating part 100 rotates, the first ball structure 120 keeps rolling contact with the first conductive part 220, so that the rotating part and the stationary part are electrically connected.
The rotary conductive device utilizes the rolling contact between the first ball structure 120 and the first conductive part 220 to realize the function of transmitting electric energy between the rotating part and the static part, so the rotary conductive device has the advantages of stable and reliable structure, easy integration, high energy transmission efficiency, proper matching, good compatibility, high reliability, low maintenance cost and the like, and can effectively replace a slip ring to transmit electric energy between the rotating part and the static part, thereby avoiding the problem of friction loss of the slip ring.
In some embodiments, as shown in fig. 2, a ceramic bearing 250 is fixed on the fixing portion 200, and the rotating portion 100 is rotatably connected to the fixing portion 200 through the ceramic bearing 250. The ceramic bearing 250 has advantages of corrosion resistance, long life, temperature difference resistance, etc., compared to a conventional metal bearing, which also allows the rotating part 100 to rotate more smoothly. Specifically, the rotation connecting portion 150 is connected to an inner ring of the ceramic bearing 250, and an outer ring of the ceramic bearing 250 is connected to the fixing portion 200.
In some embodiments, as shown in fig. 2, the rotating portion 100 is further provided with a third conduction structure 130 and a second ball structure 140, and the rotating portion is connected to the second ball structure 140 through the third conduction structure 130. Between the rotating part 100 and the fixed part 200, a second conductive part 230 is further provided on the fixed part 200, a fourth conductive structure 240 is further provided on the fixed part 200, and the stationary part is connected to the second conductive part 230 through the fourth conductive structure 240.
When the rotating part 100 rotates, the second ball structure 140 keeps rolling contact with the second conductive part 230, so that the rotating part and the stationary part are electrically connected.
The present invention provides two power transmission paths, specifically a first power transmission path that sequentially passes through the first conduction structure 110, the first ball structure 120, the first conduction part 220, and the second conduction structure 210 to achieve power transmission, and a second power transmission path that sequentially passes through the third conduction structure 130, the second ball structure 140, the second conduction part 230, and the fourth conduction structure 240 to achieve power transmission. The two power transmission paths facilitate maximum compatibility under different energy sources.
Further, as shown in fig. 2, the rotary part 100 has a rotation connection part 150 provided on a rotation axis thereof, and the rotary part 100 rotates about the rotation connection part 150. The first conduction structure 110 is disposed on the front end surface of the rotating portion 100 and located outside the rotating connection portion 150, and the first ball structure 120 is disposed on the side end of the rotating portion 100. The third conduction structure 130 is disposed at the front end of the rotation connection portion 150, and the second ball structure 140 is disposed at the rear end of the rotation connection portion 150.
The first conducting structure 110 is used for conducting with a conducting wire on the rotating component. The third conduction structure 130 is used for conducting with the rotation shaft of the rotation component.
In some embodiments, as shown in fig. 2 to 4, the first conductive structure 110 includes an opening. Optionally, the opening is a square opening, but is not limited to the above shape.
The first ball structure 120 includes a first screw 121 and a first ball 122, optionally, in order to realize electric conduction, the first screw 121 is a metal screw, and the first ball 122 is a steel ball, but not limited to the above materials. The rotating portion 100 is provided with a first screw hole 160, the first screw hole 160 is communicated with the opening and extends to a side end of the rotating portion 100 along a radial direction of the rotating portion 100, the first screw rod 121 is screwed in the first screw hole 160, and the first ball 122 is rotatably connected to a distal end of the first screw rod 121 and protrudes out of a side end of the rotating portion 100.
The electric energy generated by the external structure is transmitted through the wire, the wire is kept stationary relative to the rotating portion 100, and the wire is not easily broken by the rotation, and is conducted to the first screw 121 installed in the first screw hole 160 through the opening, and further conducted to the first ball 122.
In some embodiments, as shown in fig. 2 and 3, in order to keep the first ball 122 in rolling contact with the first conductive part 220, a ring-shaped first conductive part 220 is laid on the fixing part 200 and arranged along the movement locus of the first ball 122. Generally, the motion locus of the first ball 122 is circular, i.e. the first conductive part 220 is circular ring. And the first ball 122 may roll on the surface of the first conductive portion 220.
In some embodiments, the second conductive structure 210 includes a first guiding hole, an inner end of which is connected to the first conductive part 220 and an outer end of which is exposed to the fixing part 200, specifically to a side surface of the fixing part 200, but not limited thereto. A first conductive wire is disposed between the first conductive cloth and the fixing portion 200, and the first conductive wire is led out of the fixing portion 200 through the first lead-out hole.
In some embodiments, as shown in fig. 2 to 4, the third conduction structure 130 includes a plug hole, which is disposed at a front end of the rotation connection portion 150 and extends in an axial direction of the rotation portion 100. The insertion hole is used for inserting the rotating shaft on the rotating component.
The second ball structure 140 includes a second screw 141 and a second ball 142, and optionally, in order to achieve electrical conduction, the second screw 141 is a metal screw, and the second ball 142 is a steel ball, but not limited to the above materials. The rear end of the rotary connection part 150 is provided with a second screw hole 170, the second screw hole 170 communicates with the insertion hole and extends in the axial direction of the rotary part 100, the second screw rod 141 is screwed to the second screw hole 170, and the second ball 142 is rotatably connected to the end of the second screw rod 141 and protrudes out of the rear end of the rotary connection part 150.
Further, as shown in fig. 2, the fourth conduction structure 240 includes a concave hole 241 and a second guiding hole 242, the concave hole 241 is disposed on a side of the fixing portion 200 facing the rotating portion 100, the second ball 142 matches the concave hole 241, and an inner end of the second guiding hole 242 communicates with the concave hole 241 and an outer end thereof is exposed to the fixing portion 200, specifically to a side surface of the fixing portion 200, but not limited to the above position. The second conductive part 230 is laid in the concave hole 241 and attached to the inner wall of the concave hole 241.
The second screw 141 is in electrical communication with the rotating shaft in the receptacle and transmits electrical power to the second conductive portion 230 via the second ball 142. A second conductive wire is disposed between the second conductive part 230 and the inner wall of the concave hole 241, and the second conductive wire is led out of the fixing part 200 through the second lead-out hole 242, so that electric energy generated by an external rotating structure is transferred to the outside of the structure instead of a slip ring, and a function of transferring electric energy between a rotating component and a stationary component is realized.
Optionally, the recess 241 is a hemispherical recess 241 for mating with the second ball 142. The second conductive portion 230 is shaped like a hemisphere so as to fit the inner wall of the hemispherical recess 241. The second ball 142 may roll on the surface of the second conductive portion 230.
In some embodiments, the first conductive portion 220 and/or the second conductive portion 230 are conductive cloths. Alternatively, the conductive fabric is made of a fiber fabric (usually a polyester fabric) as a base material, and is pre-treated and then plated with a metal plating layer to have a metallic characteristic. The conductive cloth is made of flexible materials, is convenient to cut into required shapes, and is convenient to lay to a preset position. When the first ball 122 and/or the second ball 142 are in rolling contact with the conductive cloth, the abrasion is less, and a large amount of carbon alloy powder is not generated due to the friction of the parts.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A rotary electric conduction device for transmitting electric energy between a rotating member and a stationary member; characterized in that the rotary conductive device comprises:
the rotating part is connected with the rotating part, a first conduction structure and a first ball structure are arranged on the rotating part, and the rotating part is connected with the first ball structure through the first conduction structure; and
the rotating part is rotatably connected with the fixed part and is limited to rotate at a fixed position, and the fixed part is provided with a second conduction structure; a first conductive part is provided on the fixed part between the rotating part and the fixed part, and the stationary part is connected to the first conductive part through the second conductive structure;
wherein, when the rotating part rotates, the first ball structure keeps rolling contact with the first conductive part, so that the rotating part and the static part keep electric connection.
2. The rotary conductive apparatus according to claim 1, wherein the rotary part further comprises a third conductive structure and a second ball structure, and the rotary member is connected to the second ball structure through the third conductive structure; a second conductive part is further arranged on the fixed part between the rotating part and the fixed part, a fourth conductive structure is further arranged on the fixed part, and the static part is connected with the second conductive part through the fourth conductive structure;
wherein, when the rotating part rotates, the second ball structure keeps rolling contact with the second conductive part, so that the rotating part and the static part keep electric connection.
3. The rotary conductive apparatus of claim 2, wherein the rotary part has a rotation connection part provided on a rotation axis thereof;
the first conduction structure is arranged on the front end face of the rotating part and located on the outer side of the rotating connecting part, and the first ball structure is arranged on the side end of the rotating part;
the third conduction structure is arranged at the front end of the rotating connection part, and the second ball structure is arranged at the rear end of the rotating connection part.
4. The rotating conductive apparatus according to any one of claims 1 to 3, wherein the first via structure comprises an opening;
the first ball structure comprises a first screw and a first ball, a first screw hole is formed in the rotating portion and communicated with the opening hole, the first screw hole extends to the side end of the rotating portion in the radial direction of the rotating portion, the first screw is in threaded connection with the first screw hole, and the first ball is rotatably connected to the tail end of the first screw and protrudes out of the side end of the rotating portion.
5. The rotary conductive apparatus as claimed in claim 4, wherein the first conductive portion having a ring shape is laid on the fixed portion and arranged along a moving locus of the first ball.
6. The rotary conductive device according to claim 4, wherein the second conductive structure comprises a first lead-out hole, an inner end of the first lead-out hole is connected to the first conductive portion and an outer end thereof is exposed to the fixing portion.
7. The rotary conductive apparatus according to claim 3, wherein the third conduction structure includes a socket provided at a front end of the rotary connection portion and extending in an axial direction of the rotary portion;
the second ball structure includes second screw rod and second ball, the rear end of rotating connecting portion is equipped with the second screw, the second screw intercommunication the jack is followed the axial extension of rotating part, the second screw rod spiro union the second screw, the second ball rotates to be connected the end of second screw rod is outstanding the rear end of rotating connecting portion.
8. The rotary conductive apparatus according to claim 7, wherein the fourth conducting structure comprises a recess and a second guiding-out hole, the recess is disposed on a side of the fixing portion facing the rotating portion, the second ball is matched with the recess, an inner end of the second guiding-out hole is connected to the recess and an outer end thereof is exposed to the fixing portion;
the second conductive part is laid in the concave hole and attached to the inner wall of the concave hole.
9. The rotating conductive device of claim 2 or 3, wherein the first conductive portion and/or the second conductive portion is a conductive cloth.
10. The rotary conductive apparatus as claimed in any one of claims 1 to 3, wherein a ceramic bearing is fixed on the fixed portion, and the rotary portion is rotatably connected to the fixed portion through the ceramic bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310148521.0A CN115864085B (en) | 2023-02-22 | 2023-02-22 | Rotary conductive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310148521.0A CN115864085B (en) | 2023-02-22 | 2023-02-22 | Rotary conductive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115864085A true CN115864085A (en) | 2023-03-28 |
| CN115864085B CN115864085B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310148521.0A Active CN115864085B (en) | 2023-02-22 | 2023-02-22 | Rotary conductive device |
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| CN (1) | CN115864085B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1366155A (en) * | 1971-02-08 | 1974-09-11 | Riv Officine Di Villar Perosa | Rotary electrical contact |
| JP2015207461A (en) * | 2014-04-21 | 2015-11-19 | 株式会社グローブ・テック | rotary joint |
| WO2017088993A1 (en) * | 2015-11-27 | 2017-06-01 | Siemens Aktiengesellschaft | Superconducting rolling bearing and rolling bearing arrangement |
| WO2020232646A1 (en) * | 2019-05-21 | 2020-11-26 | 富创科技(江西)有限公司 | Rotary conductive device |
| CN114877918A (en) * | 2022-05-16 | 2022-08-09 | 中北大学 | Integrated self-powered sensing device |
-
2023
- 2023-02-22 CN CN202310148521.0A patent/CN115864085B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1366155A (en) * | 1971-02-08 | 1974-09-11 | Riv Officine Di Villar Perosa | Rotary electrical contact |
| JP2015207461A (en) * | 2014-04-21 | 2015-11-19 | 株式会社グローブ・テック | rotary joint |
| WO2017088993A1 (en) * | 2015-11-27 | 2017-06-01 | Siemens Aktiengesellschaft | Superconducting rolling bearing and rolling bearing arrangement |
| WO2020232646A1 (en) * | 2019-05-21 | 2020-11-26 | 富创科技(江西)有限公司 | Rotary conductive device |
| CN114877918A (en) * | 2022-05-16 | 2022-08-09 | 中北大学 | Integrated self-powered sensing device |
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|---|---|
| CN115864085B (en) | 2023-06-27 |
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