A non-contact multi-channel optoelectronic device slip ring
By using a non-contact multi-channel optoelectronic device slip ring, a laser receiver and transmitter are used to transmit signals between the slip ring stator and rotor, solving the wear problem of contact slip rings, achieving long slip ring life and signal stability, and simplifying the manufacturing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI LANXUAN PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-03
Smart Images
Figure CN224458893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slip ring technology, specifically to a non-contact multi-channel optoelectronic device slip ring. Background Technology
[0002] Electrical slip rings are the most widely used type of slip ring, also known as brushes, carbon brushes, collector rings, current collectors, current collectors, rotary joints, or rotating electrical joints. They are specifically designed for transmitting power and signal power during unrestricted continuous rotation. An electrical slip ring consists of a stator and a rotor. Wires are led from the stator and rotor to connect to the power supply and terminal electrical components of the stationary and rotating structures, respectively, and the rotor rotates accordingly.
[0003] Existing slip rings are contact slip rings. Long-term rotational friction will cause wear on the surface of the brush and conductive ring, generating wear debris, resulting in poor contact, noise interference, etc., which will affect high-speed communication and reduce service life. Utility Model Content
[0004] The purpose of this invention is to provide a non-contact multi-channel optoelectronic device slip ring, solving the following technical problems:
[0005] How to improve the service life of slip rings and the stability of electrical signals.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A non-contact multi-channel optoelectronic device slip ring includes a fixed slip ring stator and a slip ring rotor coaxial with and rotatably disposed on the slip ring stator. A multi-channel optoelectronic device is disposed on one side of the slip ring rotor relative to the slip ring stator. The multi-channel optoelectronic device includes an outer ring channel and a first inner ring channel disposed within the outer ring channel.
[0008] The outer ring path includes two sets of laser receivers distributed circumferentially and n+1 sets of laser emitters. The two sets of laser receivers are centrally symmetrically distributed, and the n+1 sets of laser emitters are equidistantly arranged, with n sets of laser emitters symmetrically distributed on the same side between the two sets of laser receivers, and 1 set of laser emitters located on the other side of one set of laser receivers. The minimum included angle formed between the lasers emitted by two adjacent laser emitters is α, and the vertical distance of the included angle α from the surface of the slip ring rotor is h1.
[0009] The first inner ring path includes a set of laser receivers disposed at the center of the slip ring rotor and m sets of laser emitters circumferentially and equidistantly disposed outside the laser receivers; the minimum included angle between the laser emitters on the first inner ring path and the laser emitters on the outer ring path is b, and the vertical distance of the included angle b from the surface of the slip ring rotor is h2.
[0010] The slip ring stator is provided with a multi-channel optoelectronic device on one side of the slip ring rotor that has the same distribution structure on the surface of the slip ring rotor. The distance between the slip ring rotor and the slip ring stator is s, and h1 < s < h2.
[0011] In a further embodiment of this invention: the first inner ring path is replaced by a second inner ring path; the distribution type of the second inner ring path is the same as that of the outer ring path; in the second inner ring path, the minimum included angle formed between the lasers emitted by two adjacent laser emitters is c, and the vertical distance of the included angle c from the surface of the slip ring rotor is h3, s>h1 and s>h3.
[0012] In a further embodiment of this invention, the slip ring rotor 100 rotates via an outer ring drive.
[0013] In a further embodiment of this utility model: the slip ring stator is fixedly installed on the inner wall of housing one, the slip ring rotor is fixedly installed on the inner wall of housing two, and the outer wall of housing two with the slip ring rotor installed is rotatably installed on the end of housing one with the slip ring stator installed.
[0014] In a further embodiment of this utility model: the outer wall of one end of the housing second, on which the slip ring rotor is mounted, is rotatably mounted to the end of the housing first, on which the slip ring stator is mounted, via a bearing.
[0015] In a further embodiment of this invention, the slip ring rotor is driven to rotate via a central shaft.
[0016] In a further embodiment of this invention: the center of the slip ring rotor is fixedly mounted on a central shaft, and one end of the central shaft is connected to a drive mechanism that drives the central shaft to rotate.
[0017] In a further embodiment of this invention, the outer loop path and the first inner loop path are independent paths that do not interfere with each other.
[0018] In a further embodiment of this invention, n = 4.
[0019] In a further embodiment of this invention: m = 4.
[0020] The beneficial effects of this utility model are:
[0021] This invention relates to a non-contact multi-channel optoelectronic device slip ring. Through a specific multi-channel optoelectronic device design, the slip ring stator and rotor are configured with an outer loop and an inner loop (either a first or second inner loop). The distance between the slip ring stator and rotor is determined based on the angle formed by the laser beam from the laser emitter. This ensures stable laser signal reception by the laser receiver while preventing interference between the inner and outer loops. Since there is no friction between the slip ring stator and rotor, the lifespan of the pulley is extended, and damage to the laser signal caused by wear is avoided, ensuring stable signal transmission. The slip ring rotor and stator have identical overall structures, simplifying the manufacturing process and facilitating mass production. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings.
[0023] Figure 1 This is a schematic diagram of the non-contact multi-channel optoelectronic device slip ring of Embodiment 1 of this utility model;
[0024] Figure 2 This is a side view of the slip ring of the non-contact multi-channel optoelectronic device according to Embodiment 1 of this utility model;
[0025] Figure 3 This is a schematic diagram of the working principle of the outer ring of the slip ring of the non-contact multi-channel optoelectronic device in Embodiment 1 of this utility model;
[0026] Figure 4 This is a schematic diagram of the installation structure of the slip ring stator and slip ring rotor in the slip ring of the non-contact multi-channel optoelectronic device according to Embodiment 1 of this utility model.
[0027] In the diagram: 100, slip ring rotor; 200, slip ring stator; 300, laser receiver; 400, laser emitter. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1
[0030] Please see Figure 1This embodiment discloses a non-contact multi-channel optoelectronic device slip ring, including a fixed slip ring stator 200 and a slip ring rotor 100 coaxial with and rotatably disposed with the slip ring stator 200. A multi-channel optoelectronic device is disposed on one side of the slip ring rotor 100 relative to the slip ring stator 200. The multi-channel optoelectronic device includes an outer ring channel that is independently disposed and does not interfere with each other, and a first inner ring channel disposed within the outer ring channel.
[0031] Please see Figure 2 The slip ring stator 200 is provided with a multi-channel optoelectronic device on one side of the slip ring rotor 100 that has the same surface distribution structure as the slip ring rotor 100.
[0032] Taking the outer ring path on the slip ring rotor 100 as an example, the outer ring path includes two sets of laser receivers 300 and five sets of laser emitters 400 distributed circumferentially. The distribution of the two sets of laser receivers 300 and the five sets of laser emitters 400 forms a loop. The two sets of laser receivers 300 are centrally symmetrically distributed on the loop, and the five sets of laser emitters 400 are equidistantly arranged. Four of the sets of laser emitters 400 are symmetrically distributed between the two sets of laser receivers 300 on the same side, i.e., within half of the loop; one set of laser emitters 400 is located on the other side of one set of laser receivers 300. Please refer to [link to relevant documentation]. Figure 3 The minimum included angle between the lasers emitted by two adjacent laser emitters 400 is α, and the vertical distance of included angle α from the surface of slip ring rotor 100 is h1.
[0033] It should be noted that the number of laser emitters 400 in the outer ring path is not limited to the five in this embodiment. In other embodiments, the number of laser emitters 400 can be set to n+1 as needed. Specifically, n groups of laser emitters 400 are symmetrically distributed between the two groups of laser receivers 300 on the same side, i.e., within half of the ring; one group of laser emitters 400 is located on the other side of one of the groups of laser receivers 300. For example, in this embodiment, n = 4; in other embodiments, the value of n can also be 2, 3, 5, etc.
[0034] Taking the first inner ring passage on the slip ring rotor 100 as an example, the first inner ring passage includes a set of laser receivers 300 disposed at the center of the slip ring rotor 100 and four sets of laser emitters 400 disposed circumferentially at equal intervals outside the laser receivers 300; the minimum included angle formed between the laser emitters 400 on the first inner ring passage and the laser emitters 400 on the outer ring passage is b, and the vertical distance of the included angle b from the surface of the slip ring rotor 100 is h2; the distance between the slip ring rotor 100 and the slip ring stator 200 is s, and h1 < s < h2.
[0035] It should be noted that the number of laser emitters 400 in the first inner loop path is not limited to the four in this embodiment. In other embodiments, the number of laser emitters 400 can be set to m as needed; for example, in this embodiment, m = 4; in other embodiments, the value of m can also be 2, 3, 5, etc.
[0036] Specifically, the outer ring path and the first inner ring path on the slip ring rotor 100 correspond one-to-one with the outer ring path and the first inner ring path on the slip ring stator 200, respectively. The laser emitter 400 in the outer ring path on the slip ring rotor 100 emits laser signals to the laser receiver 300 in the outer ring path on the slip ring stator 200, and vice versa. The laser emitter 400 in the first inner ring path on the slip ring rotor 100 emits laser signals to the laser receiver 300 in the first inner ring path on the slip ring stator 200, and vice versa.
[0037] In detail, in the outer ring path of the slip ring stator 200, the minimum included angle between the lasers emitted by two adjacent laser emitters 400 is α, and the vertical distance of the included angle α from the surface of the slip ring rotor 100 is h1. According to the principle of light emission, the area formed within the diagonal range of the included angle α is the laser receiving range after the two lasers intersect and converge. The area formed within the included angle α is the area that the laser cannot reach, and therefore cannot receive the laser signal. Based on this, by setting the corresponding laser receiver 300 within the diagonal range of the included angle α, it can be ensured that the laser receiver 300 in the outer ring path of the slip ring rotor 100 can receive the signal emitted by the laser emitter 400 in the outer ring path of the slip ring stator 200. To meet this condition, the distance s between the slip ring rotor 100 and the slip ring stator 200 needs to be set to be greater than h1. Therefore, s > h1.
[0038] Similarly, when s > h1, it can also be ensured that the laser receiver 300 in the outer ring path of the slip ring stator 200 receives the laser signal emitted by the laser emitter 400 in the outer ring path of the slip ring rotor 100.
[0039] Since the outer loop path and the first inner loop path are independent signal paths, the laser signal emitted by the laser emitter 400 in the outer loop path should be prevented from affecting the laser receiver 300 in the inner loop path. In other words, the laser receiver 300 in the inner loop path needs to be located within the area formed by the included angle b. To meet this condition, the distance s between the slip ring rotor 100 and the slip ring stator 200 needs to be set to be less than h2. Therefore, s < h2.
[0040] Based on this, h1 < s < h2, the laser receiver 300 in the outer loop can stably receive laser signals, while avoiding interference between the laser signals emitted by the outer loop and the first inner loop. This satisfies the independent working performance of the outer loop and the first inner loop, allowing data transmission according to protocols such as RS232, PROF I BUSDP, CANBUS, and RS422. Furthermore, no isolation ring is needed between the outer loop and the first inner loop, further simplifying the production process.
[0041] Meanwhile, the laser emitter 400 in the outer ring path is set in an n+1 configuration, with laser emitters 400 on both sides of one of the laser receivers 300. This allows the corresponding laser receiver 300 to receive lasers from both sides, thus stabilizing the received laser signal. Since the slip ring rotor 100 is rotating, only laser emitters 300 need to be set on both sides of one of the laser receivers 400. This design saves on the number of laser emitters 400 and laser receivers 300, reducing manufacturing costs. Furthermore, the slip ring rotor 100 and slip ring stator 200 have identical structures, simplifying the manufacturing process and facilitating mass production.
[0042] Please see Figure 4 The slip ring rotor 100 rotates via an outer ring drive. The slip ring stator 200 is fixedly installed on the inner wall of housing one, and the slip ring rotor 100 is fixedly installed on the inner wall of housing two. The outer wall of housing two, where the slip ring rotor 100 is installed, is rotatably mounted to the end of housing one, where the slip ring stator 200 is installed, via a bearing. There is no need for contact between the slip ring stator 200 and the slip ring rotor 100, so there is no mutual friction, which can extend the service life. While the slip ring rotor 100 is rotating at high speed, the laser receiver 300 stably receives the laser signal emitted by the corresponding laser emitter 400 and transmits data according to the set protocol.
[0043] The laser receiver 300 is a device for receiving laser signals. In this embodiment, the laser receiver 300 is a PIN diode. In other embodiments, the laser receiver 300 may also be replaced by other devices with equivalent functions.
[0044] Example 2
[0045] This embodiment discloses a non-contact multi-channel optoelectronic device slip ring. Compared with Embodiment 1, the only difference is that the first inner ring path in Embodiment 1 is replaced by a second inner ring path. The distribution type of the second inner ring path is the same as that of the outer ring path. In the second inner ring path, the minimum included angle formed between the lasers emitted by two adjacent laser emitters 400 is c, and the vertical distance of the included angle c from the surface of the slip ring rotor 100 is h3, s > h1 and s > h3.
[0046] In this embodiment, the working principle of the second inner loop is the same as that of the outer loop in Embodiment 1.
[0047] In this embodiment, the slip ring rotor 100 is fixedly mounted on a central shaft at its center, and one end of the central shaft is connected to a drive mechanism that drives the central shaft to rotate, so that the slip ring rotor 100 can rotate.
[0048] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.
[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0050] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A non-contact multi-channel optoelectronic device slip ring, characterized in that, It includes a fixed slip ring stator (200) and a slip ring rotor (100) coaxial with and rotatably disposed on the slip ring stator (200). The slip ring rotor (100) is provided with a multi-channel optoelectronic device on one side relative to the slip ring stator (200). The multi-channel optoelectronic device includes an outer ring channel and a first inner ring channel disposed within the outer ring channel. The outer ring path includes two sets of laser receivers (300) distributed circumferentially and n+1 sets of laser emitters (400). The two sets of laser receivers (300) are centrally symmetrically distributed, and the n+1 sets of laser emitters (400) are equidistantly arranged. Among them, the n sets of laser emitters (400) are symmetrically distributed between the same side of the two sets of laser receivers (300), and one set of laser emitters (400) is located on the other side of one set of laser receivers (300). The minimum included angle formed between the lasers emitted by two adjacent laser emitters (400) is α, and the vertical distance of the included angle α from the surface of the slip ring rotor (100) is h1. The first inner ring path includes a set of laser receivers (300) disposed at the center of the slip ring rotor (100) and m sets of laser emitters (400) circumferentially equidistantly disposed outside the laser receivers (300); the minimum included angle formed between the laser emitters (400) on the first inner ring path and the laser emitters (400) on the outer ring path is b, and the vertical distance of the included angle b from the surface of the slip ring rotor (100) is h2; The slip ring stator (200) is provided with a multi-channel optoelectronic device on one side of the slip ring rotor (100) with the same distribution structure as the slip ring rotor (100) surface. The distance between the slip ring rotor (100) and the slip ring stator (200) is s, and h1 < s < h2.
2. The non-contact multi-channel optoelectronic device slip ring according to claim 1, characterized in that, The first inner loop path is replaced by the second inner loop path; the distribution type of the second inner loop path is the same as that of the outer loop path; in the second inner loop path, the minimum included angle formed between the lasers emitted by two adjacent laser emitters (400) is c, and the vertical distance of the included angle c from the surface of the slip ring rotor (100) is h3, s>h1 and s>h3.
3. The non-contact multi-channel optoelectronic device slip ring according to claim 1, characterized in that, The slip ring rotor (100) rotates via an outer ring drive.
4. The non-contact multi-channel optoelectronic device slip ring according to claim 3, characterized in that, The slip ring stator (200) is fixedly installed on the inner wall of housing one, and the slip ring rotor (100) is fixedly installed on the inner wall of housing two. The outer wall of housing two with the slip ring rotor (100) installed is rotatably installed on the outer wall of housing one with the slip ring stator (200) installed.
5. The non-contact multi-channel optoelectronic device slip ring according to claim 4, characterized in that, The outer wall of one end of the housing two, on which the slip ring rotor (100) is mounted, is rotatably mounted on the end of the housing one, on which the slip ring stator (200) is mounted, via a bearing.
6. The non-contact multi-channel optoelectronic device slip ring according to claim 2, characterized in that, The slip ring rotor (100) rotates via a central shaft drive.
7. The non-contact multi-channel optoelectronic device slip ring according to claim 6, characterized in that, The slip ring rotor (100) is fixedly mounted on a central shaft at its center, and one end of the central shaft is connected to a drive mechanism that drives the central shaft to rotate.
8. The non-contact multi-channel optoelectronic device slip ring according to claim 1, characterized in that, The outer loop path and the first inner loop path are independent paths that do not interfere with each other.
9. The non-contact multi-channel optoelectronic device slip ring according to claim 1, characterized in that, The n=4.
10. The non-contact multi-channel optoelectronic device slip ring according to claim 1, characterized in that, The value of m is 4.