A split-type inductive encoder
By eliminating the mounting bracket in the split encoder, and using the bearings inside the stator and rotor housings to install the reflector and receiver plates, and employing an adhesive reinforcement structure, the problem of excessive encoder size is solved, achieving applicability in narrow environments and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI WATER BEAR SENSING TECHNOLOGY CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
The mounting bracket of a split encoder takes up a large volume, making it unsuitable for narrow or confined spaces.
The installation bracket is eliminated. The reflector and receiver are installed on the bearing platform inside the stator housing and rotor housing. The reflector and receiver are fixed by adhesive, and the adhesive reinforcement structure is used to improve the connection strength.
The size of the encoder has been reduced, making it suitable for narrower and more confined application environments, improving the convenience of production and processing and reducing costs.
Smart Images
Figure CN224459560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to encoders, specifically a split-type inductive encoder. Background Technology
[0002] In a split-type encoder, the stator and rotor are separate. The rotor is mounted on the rotating end of the device, while the stator is mounted on the fixed end. Internal reflectors, receivers, and signal processing boards process signals to measure the device's rotation angle. In a split-type encoder, the reflector is fixed inside the rotor, while the receiver and processing boards are fixed inside the stator. All are mounted using brackets, which increase the encoder's size. This makes these encoders unsuitable for narrow or confined spaces. Utility Model Content
[0003] To overcome the shortcomings of the prior art, this utility model provides a split-type inductive encoder. This utility model eliminates the need for a mounting bracket and uses the support platform inside the stator housing and rotor housing to install the reflector plate and receiver plate, reducing the size and making it suitable for narrower and more confined spaces.
[0004] To achieve the above technical objectives, this utility model adopts the following technical solution: a split-type inductive encoder, comprising a rotor and a stator. The rotor includes an annular rotor housing, with a connecting component at the center hole of the rotor housing for connecting the rotating shaft of the device. The surface of the rotor housing facing the stator is a first annular groove, and a rotor support is fixed within the first annular groove. A reflector plate is glued to the rotor support. The stator includes an annular stator housing, with the center hole of the stator housing aligned with the center hole of the rotor housing. The surface of the stator housing facing the rotor is a second annular groove, and a stator support is fixed within the second annular groove. The stator support has two stepped surfaces, with a receiving plate glued to the first stepped surface and a processing plate glued to the second stepped surface. The rotor support and the stator support are also respectively provided with adhesive reinforcement structures.
[0005] The rotor support consists of two annular platforms. The first side of the annular platform is fixedly connected to the bottom surface of the rotor housing, and the second side is used to glue the reflector.
[0006] The adhesive reinforcement structure on the rotor bearing platform adopts a first adhesive groove provided on the second side of the rotor bearing platform, and the number of the first adhesive groove is at least two.
[0007] The first glue tank is an annular groove, and its cross-section is an isosceles trapezoid with the bottom surface facing outward.
[0008] The inner wall of the rotor housing is provided with an axial positioning groove, and the outer circumferential wall of the reflector is provided with an axial positioning strip, which is embedded in the axial positioning groove.
[0009] The stator support is two annular L-shaped platforms with L-shaped cross-sections. The annular L-shaped platforms have a first stepped surface and a second stepped surface. The first side of the annular L-shaped platform is fixedly connected to the bottom surface of the stator housing.
[0010] The adhesive reinforcement structure on the stator bearing platform adopts a second adhesive groove and a third adhesive groove. The second adhesive groove is opened on the first step surface, and the third adhesive groove is opened on the L vertical surface of the annular L platform.
[0011] The second step surface is provided with a radial positioning groove, and the bottom surface of the processing plate is provided with a radial positioning strip, which is embedded in the radial positioning strip.
[0012] The connecting assembly adopts a stepped platform fixed on the wall of the center hole of the rotor housing. The stepped platform has a threaded hole, and a bolt is fitted into the threaded hole. A connecting piece is fixedly provided on the outer wall of the stator housing for fixing the fixed shaft of the connecting equipment.
[0013] The outer surface of the reflector is lower than the outer surface of the rotor housing, and the outer surface of the receiver is lower than the outer surface of the stator housing.
[0014] In summary, this utility model achieves the following technical effects:
[0015] This invention eliminates the need for mounting brackets and utilizes the support platforms inside the stator and rotor housings to mount the reflector and receiver plates, reducing the size and making it suitable for narrower and more confined spaces. Attached Figure Description
[0016] Figure 1 This is a cross-sectional schematic diagram of a split-type inductive encoder;
[0017] Figure 2 yes Figure 1 Enlarged diagram of part A in the middle;
[0018] Figure 3 yes Figure 1 Enlarged diagram of section B;
[0019] Figure 4 yes Figure 1 Enlarged diagram of section C. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings.
[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0026] Example:
[0027] Figure 1 This is a cross-sectional schematic diagram of a split-type inductive encoder, including a rotor and a stator. The rotor includes an annular rotor housing 11, with a connecting component in the central hole of the rotor housing 11 for connecting the rotating shaft of the device. The surface of the rotor housing 11 facing the stator is a first annular groove, and a rotor support 111 is fixed in the first annular groove. A reflector 12 is glued to the rotor support 111. The stator includes an annular stator housing 21, with the central hole of the stator housing 21 aligned with the central hole of the rotor housing 11. The surface of the stator housing 21 facing the rotor is a second annular groove, and a stator support 211 is fixed in the second annular groove. The stator support 211 has two stepped surfaces. A receiving plate 23 is glued to the first stepped surface, and a processing plate 22 is glued to the second stepped surface. The rotor support 111 and the stator support 211 are also provided with glued reinforcement structures.
[0028] This invention features a separate stator and rotor. This separate design allows the stator to connect to the fixed end of the equipment, while the rotor connects to the rotating end. The stator and rotor are positioned opposite each other for signal transmission, facilitating the measurement of the equipment's rotation angle. Furthermore, the reflector, receiver, and receiver are all mounted using adhesive bonding, reinforced with adhesive structures to enhance bonding strength, improve manufacturing convenience, reduce costs, shorten size, and adapt to narrower or more confined spaces.
[0029] Figure 2 yes Figure 1 The enlarged schematic diagram of part A shows that the rotor support 111 consists of two annular platforms. The first side of the annular platform is fixedly connected to the bottom surface of the rotor housing 11, and the second side is used to glue the reflector 12.
[0030] The adhesive reinforcement structure on the rotor bearing 111 adopts a first adhesive groove 112 located on the second side of the rotor bearing 111, and the number of the first adhesive groove 112 is at least 2.
[0031] A glue tank is opened on the platform to increase the amount of glue used and the space for the glue, thereby improving the connection strength between the reflector and the platform and preventing the reflector from loosening.
[0032] The first glue tank 112 is an annular groove with a cross-section of an isosceles trapezoid with its bottom surface facing outwards. The isosceles trapezoid can hold more glue.
[0033] The inner wall of the rotor housing 11 is provided with an axial positioning groove 113, and the outer circumferential wall of the reflector plate 12 is provided with an axial positioning strip 121, which is embedded in the axial positioning groove 113.
[0034] This invention utilizes positioning grooves and positioning strips to position the reflector, preventing the reflector from rotating circumferentially and improving its stability.
[0035] Figure 3 yes Figure 1 The enlarged schematic diagram of part B shows that the stator support 211 consists of two annular L-shaped platforms with L-shaped cross-sections. The annular L-platforms have a first step surface and a second step surface. The first side of the annular L-platforms is fixedly connected to the bottom surface of the stator housing 21.
[0036] The adhesive reinforcement structure on the stator bearing platform 211 employs a second adhesive groove 213 and a third adhesive groove 214. The second adhesive groove 213 is formed on the first stepped surface, and the third adhesive groove 214 is formed on the vertical L-shaped surface of the annular L-platform. There are at least two second adhesive grooves 213 and at least two third adhesive grooves 214, increasing adhesive strength. Both the second adhesive groove 213 and the third adhesive groove 214 are annular grooves, and their cross-sections are isosceles trapezoids with the lower base facing outwards. The isosceles trapezoid can accommodate more adhesive.
[0037] The second step surface is provided with a radial positioning groove 212, and the bottom surface of the processing plate 22 is provided with a radial positioning strip 221, which is embedded in the radial positioning strip 221.
[0038] This invention utilizes positioning grooves and positioning strips to position the reflector, preventing the reflector from rotating circumferentially and improving its stability.
[0039] The reflector plate holds the treatment plate in place, which also increases the strength of the treatment plate installation.
[0040] Figure 4 yes Figure 1 The enlarged schematic diagram of part C shows that the connecting component adopts a stepped platform 13 fixed on the wall of the center hole of the rotor housing 11. The stepped platform 13 has a threaded hole 131, and the threaded hole 131 is fitted with a bolt 132. A connecting piece 24 is fixedly installed on the outer wall of the stator housing 21 for fixing the fixed shaft of the connecting equipment.
[0041] The rotating shaft of the equipment can pass through the central hole of the stator and be securely connected to the stepped platform 13. The stepped platform 13 has many threaded holes to accommodate various connection situations.
[0042] The outer surface of the reflector plate 12 is lower than the outer surface of the rotor housing 11, and the outer surface of the receiver plate 23 is lower than the outer surface of the stator housing 21 to prevent wear of the reflector plate and the receiver plate during operation.
[0043] The adhesive used is a commonly available bonding agent.
[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.
Claims
1. A split inductance encoder comprising a rotor and a stator, characterized in that: The rotor includes an annular rotor housing (11), the central hole of which is provided with a connecting component for connecting the rotating shaft of the device. The surface of the rotor housing (11) facing the stator is a first annular groove, and a rotor support (111) is fixed in the first annular groove. A reflector plate (12) is glued to the rotor support (111). The stator includes an annular stator housing (21), the central hole of which is aligned with the central hole of the rotor housing (11). The surface of the stator housing (21) facing the rotor is a second annular groove, and a stator support (211) is fixed in the second annular groove. The stator support (211) has two stepped surfaces. A receiving plate (23) is glued to the first stepped surface, and a processing plate (22) is glued to the second stepped surface. The rotor support (111) and the stator support (211) are also respectively provided with glued reinforcement structures.
2. A split inductance encoder according to claim 1, characterized in that: The rotor support (111) consists of two annular platforms. The first side of the annular platform is fixedly connected to the bottom surface of the rotor housing (11), and the second side is used to glue the reflector (12).
3. A split inductance encoder according to claim 2, characterized in that: The adhesive reinforcement structure on the rotor base (111) adopts a first adhesive groove (112) on the second side of the rotor base (111), and the number of the first adhesive groove (112) is at least 2.
4. A split inductance encoder according to claim 3, characterized in that: The first glue groove (112) is an annular groove, and its cross-section is an isosceles trapezoid with the bottom surface facing outward.
5. The split inductance encoder of claim 1, wherein: The inner wall of the rotor housing (11) is provided with an axial positioning groove (113), and the outer circumferential wall of the reflector plate (12) is provided with an axial positioning strip (121), which is embedded in the axial positioning groove (113).
6. The split inductance encoder of claim 1, wherein: The stator support (211) consists of two L-shaped annular L-platforms with a first step surface and a second step surface. The first side of the annular L-platform is fixedly connected to the bottom surface of the stator housing (21).
7. A split inductance encoder according to claim 6, characterized in that: The adhesive reinforcement structure on the stator support (211) adopts a second adhesive groove (213) and a third adhesive groove (214). The second adhesive groove (213) is opened on the first step surface, and the third adhesive groove (214) is opened on the L vertical surface of the annular L platform.
8. A split inductance encoder according to claim 6, characterized in that: The second step surface is provided with a radial positioning groove (212), and the bottom surface of the processing plate (22) is provided with a radial positioning strip (221), which is embedded in the radial positioning strip (221).
9. The split inductance encoder of claim 1, wherein: The connecting assembly adopts a stepped platform (13) fixed on the wall of the center hole of the rotor housing (11). The stepped platform (13) has a threaded hole (131) and a bolt (132) is fitted in the threaded hole (131). A connecting piece (24) is fixedly provided on the outer wall of the stator housing (21) for fixing the fixed shaft of the connecting equipment.
10. The split inductance encoder of claim 1, wherein: The outer surface of the reflector plate (12) is lower than the outer surface of the rotor housing (11), and the outer surface of the receiver plate (23) is lower than the outer surface of the stator housing (21).