Split encoder and rotating assembly

Abstract

The embodiment of the utility model provides a split-type encoder and a rotating assembly, and the split-type encoder comprises a mounting seat which comprises a first side and a second side which are oppositely arranged, and is provided with a detection port; the circuit board is detachably connected with the mounting seat, and the circuit board is arranged on the first side of the mounting seat; the first limiting parts and the second limiting parts are oppositely arranged, the first limiting parts are arranged on the first side of the mounting base in the circumferential direction of the detection opening, and the second limiting parts are arranged on the circuit board; the magnetic assembly is arranged on the second side of the mounting seat, and the magnetic assembly and the mounting seat are arranged at an interval; through cooperation of the first limiting piece and the second limiting piece, axial movement, facing the second side, of the circuit board relative to the installation base is limited, and radial limiting, relative to the installation base, of the circuit board is limited. According to the technical scheme of the utility model, axial and radial limiting of the circuit board is realized under the action of the first limiting piece and the second limiting piece.

Description

Technical Field

[0001] This utility model relates to the field of encoder technology, and more specifically, to a split encoder and a rotating assembly. Background Technology

[0002] This utility model relates to encoder technology. Currently, encoders are generally divided into two types: integrated and split. Split encoders have advantages such as small size and non-contact operation. However, during use, especially during installation, the requirements for concentricity and flatness between the circuit board and the rotor shaft are high, which makes assembly more difficult. Utility Model Content

[0003] This utility model aims to at least solve the technical problem of the difficulty in assembling split encoders in existing or related technologies.

[0004] In view of this, an embodiment of the first aspect of the present invention provides a split encoder.

[0005] A second aspect of this invention provides a rotating assembly.

[0006] To achieve the above objectives, embodiments of this utility model provide a split-type encoder, comprising: a mounting base, the mounting base including a first side and a second side disposed opposite to each other, and a detection port provided on the mounting base; a circuit board, detachably connected to the mounting base, and the circuit board being disposed on the first side of the mounting base; a plurality of first limiting members and a plurality of second limiting members disposed opposite to each other, the plurality of first limiting members being disposed on the first side of the mounting base along the circumference of the detection port, and the second limiting members being disposed on the circuit board; and a magnetic component, disposed on the second side of the mounting base, and the magnetic component being spaced apart from the mounting base; wherein, the cooperation of the first limiting members and the second limiting members restricts the axial movement of the circuit board relative to the mounting base toward the second side, and restricts the radial positioning of the circuit board relative to the mounting base.

[0007] According to the split encoder proposed in this utility model, the positioning accuracy of the circuit board in the mounting base is ensured by a multi-point limiting method, thereby ensuring the concentricity of the magnetic field induction of the magnetic component and the circuit board, and improving the measurement accuracy, stability and service life of the split encoder.

[0008] Specifically, the split-type encoder includes a mounting base, a circuit board, a first limiting member, a second limiting member, and a magnetic assembly. The mounting base includes a first side and a second side arranged opposite each other. The mounting base serves as the basic frame for the entire assembly, providing stable support and a positioning platform. The first side is used to mount the circuit board, and the second side is used to accommodate the magnetic assembly. It can be understood that the first side is for inserting or fixing the circuit board; the magnetic assembly is placed on the second side of the mounting base, maintaining a certain distance from the circuit board to avoid interference. A detection port is located on the first side of the mounting base, in the form of an opening or hole, surrounding the circumference of the mounting base, facilitating observation and adjustment of the circuit board position during installation. Furthermore, the detection port serves as the mating point between the first limiting member and the circuit board, ensuring the circumferential positioning of the circuit board.

[0009] It should be added that the circuit board is detachably connected to the first side of the mounting base. Specifically, the circuit board is connected to the mounting base by screws or clips. The circuit board can serve as a signal sensing and processing unit to sense changes in the magnetic field polarity of the magnetic components.

[0010] It is important to emphasize that the circuit board achieves radial, circumferential, and axial positioning through the cooperation of multiple first and second limiting components. The multiple first limiting components are distributed circumferentially along the detection port and fixed to the first side of the mounting base. The second limiting components are located on the circuit board. When the circuit board is inserted, the first and second limiting components provide radial and circumferential limiting functions, ensuring the circuit board is at the correct angle and position. They also restrict the circuit board's axial movement, i.e., along the second side of the mounting base, maintaining the relative position of the circuit board and the magnetic components, and ensuring the concentricity of the magnetic field induction.

[0011] In some technical solutions, optionally, the first limiting member specifically includes: a first boss, provided on the end face of the first side of the mounting base; wherein the circuit board abuts against the first boss.

[0012] In this technical solution, the first boss (first limiting member) on the mounting base works in concert with the second limiting member on the circuit board to achieve radial and axial limiting (towards the second side) of the circuit board, ensuring high-precision positioning of the circuit board within the mounting base, guaranteeing the concentricity of the magnetic components and the circuit board and stable magnetic field induction, and improving the measurement accuracy and long-term stability of the encoder.

[0013] In some technical solutions, optionally, the first limiting member includes: a second boss, disposed at the end of the first boss away from the second side, and the inner peripheral wall of the second boss and the inner peripheral wall of the first boss form a stepped structure; wherein, the wall thickness of the second boss is less than the wall thickness of the first boss.

[0014] In this technical solution, a first boss is located on the end face of the first side of the mounting base, forming a protruding structure with a relatively large wall thickness, serving as the main axial support and radial positioning reference for the circuit board. A second boss is located at the end of the first boss away from the second side of the mounting base, i.e., the outer end of the first boss. The wall thickness of the second boss is less than that of the first boss, and their inner peripheral walls form a distinct stepped structure. The stepped structure is formed by the inner peripheral walls of the first and second bosses, creating a radial height difference and constituting a stepped shape on the end face of the first side of the mounting base.

[0015] In some technical solutions, optionally, a snap-fit ​​protrusion is provided at the end of the second protrusion away from the first protrusion, and the snap-fit ​​protrusion extends radially inward along the detection port; wherein, the second limiting member is the board body of the circuit board, and the second limiting member is snapped between the snap-fit ​​protrusion and the first protrusion.

[0016] In this technical solution, a snap-fit ​​protrusion is located at the end of the second boss furthest from the first boss, i.e., the end of the second boss, extending radially inward along the detection port. It takes the form of a protrusion or snap-fit ​​structure and is used to snap into the second limiting member of the circuit board. In this solution, the second limiting member is the board body portion of the circuit board, which directly snaps into the snap-fit ​​protrusion and the first boss, thereby achieving the connection.

[0017] In some technical solutions, the outer peripheral surface of the second boss may optionally be coplanar with the outer peripheral surface of the first boss.

[0018] In this technical solution, the outer peripheral surfaces of the first boss and the second boss are on the same plane, i.e., coplanar, forming a continuous stepped boundary surface. With the inner wall of the second boss further outward, a stepped structure is formed between the inner sides of the first and second bosses, facilitating the installation and fixation of the circuit board. Furthermore, the coplanar design helps to disperse stress and improve durability.

[0019] In some technical solutions, optionally, one of the first limiting member and the second limiting member is a positioning post, and the other is a positioning hole.

[0020] In this technical solution, the positioning post and the positioning hole are engaged, and the end face or side wall of the positioning post is tightly engaged with the inner wall of the positioning hole to restrict relative movement. After the positioning post is inserted into the positioning hole, the radial and circumferential offset between the circuit board and the mounting base can be restricted to ensure concentricity. The angular positioning is achieved through the engagement of the post and the hole to prevent the circuit board from rotating and misaligning.

[0021] In some technical solutions, optionally, the positioning post is provided on the mounting base, and the end face of the positioning post is provided with a positioning protrusion; the board body of the circuit board is provided with a positioning hole, the board body of the circuit board abuts against the positioning post, and the positioning protrusion extends into the positioning hole.

[0022] In this technical solution, the positioning post is fixedly mounted on the mounting base and is generally cylindrical or columnar in shape. The end face of the positioning post has a positioning protrusion, which can be round, pointed, spherical, etc., to facilitate insertion and mating. The circuit board body has positioning holes corresponding to the positioning post. The diameter and shape of the positioning holes match the positioning protrusions, and the bottom surface of the circuit board abuts against the positioning post to ensure stable positioning.

[0023] In some technical solutions, the magnetic component may optionally include: a magnetic shaft with a receiving cavity inside and a plurality of radially arranged connecting holes on the magnetic shaft; a magnetic element, at least a portion of which is disposed in the receiving cavity; and a connector threadedly connected to the connecting holes; wherein the magnetic shaft has a shaft hole for cooperating with a rotating shaft.

[0024] In this technical solution, the magnetic assembly includes a magnetic shaft, magnetic components, and connectors. The magnetic shaft, as the main structure of the magnetic assembly, is typically a hollow shaft with an internal cavity for mounting some magnetic components (such as magnetic rings or magnet sheets). Multiple connecting holes with threads are provided along the radial direction on the magnetic shaft for mating with the connectors. A central bore is also provided on the magnetic shaft for mating with the rotating shaft of the device under test, achieving a coaxial connection.

[0025] In some technical solutions, optionally, it also includes: an assembly hole, provided on the outer peripheral surface of the mounting base, the assembly hole being arranged axially; wherein the assembly hole is used to correspond to a preset hole position on the rotating device.

[0026] In this technical solution, an assembly hole is provided on the outer peripheral surface of the mounting base, specifically in the side wall or outer shell of the mounting base. The assembly hole is axially continuous or partially continuous, and its direction is parallel to the axis of rotation.

[0027] The number of assembly holes can be multiple, evenly distributed to ensure stable installation.

[0028] Rotating devices (such as motor housings, mechanical bearing seats, etc.) have pre-drilled holes corresponding to the mounting holes, which are then connected by screws, locating pins, or fasteners. The mounting holes are aligned with the pre-drilled holes on the rotating device to form a connection channel. Fasteners (such as screws or bolts) are inserted through the mounting holes to secure the device to the rotating part. The mounting holes are axially positioned to ensure proper axial force distribution on the connected components and enhance stability.

[0029] The mounting holes serve as the connection channels between the mounting base and the rotating device. They are set along the axial direction and precisely correspond to the preset hole positions of the rotating device, ensuring the stable installation and accurate positioning of the mounting base.

[0030] An embodiment of the second aspect of this application provides a rotating assembly, including: a rotating device, the rotating device including a rotating shaft; any of the above-mentioned split encoders, detachably connected to the rotating device; wherein, the magnetic shaft of the magnetic component of the split encoder is fitted onto the rotating shaft.

[0031] The rotary assembly provided in this application includes a rotary device and a split encoder. The rotary device includes a rotating shaft, which serves as the basic component for rotary motion. The split encoder is detachably connected to the rotary device, facilitating installation and maintenance. The split encoder has a magnetic component, the magnetic shaft of which is mounted on the outside of the rotating shaft via a sleeve.

[0032] Since the rotating component includes any of the aforementioned split encoders, it has the beneficial effects of any of the aforementioned split encoders, which will not be elaborated further here.

[0033] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description

[0034] Figure 1 A schematic diagram of a split encoder according to an embodiment of the present invention is shown;

[0035] Figure 2 An exploded view of a split encoder according to an embodiment of the present invention is shown;

[0036] Figure 3 A cross-sectional schematic diagram of a split encoder according to an embodiment of the present invention is shown;

[0037] Figure 4 A schematic diagram of a split encoder according to another embodiment of the present invention is shown;

[0038] Figure 5 An exploded view of a split encoder according to another embodiment of the present invention is shown.

[0039] Figure 6 An exploded view of a rotating assembly according to an embodiment of the present invention is shown.

[0040] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0041] 100: Split encoder; 102: Mounting base; 1022: First side; 1024: Second side; 1026: Detection port; 104: Circuit board; 1042: Board body; 1062: First limiting member; 1064: Second limiting member; 108: Magnetic assembly; 1082: Magnetic shaft; 1084: Receiving cavity; 1086: Connecting hole; 1088: Magnetic component; 1090: Connecting member; 1092: Shaft hole; 1102: First boss; 1104: Second boss; 1106: Snap-fit ​​protrusion; 1122: Positioning pin; 1124: Positioning hole; 1126: Positioning protrusion; 114: Assembly hole; 120: Connecting screw; 122: Connecting screw hole;

[0042] 200: Rotating component; 202: Rotating device; 2022: Rotating shaft; 2024: Hole. Detailed Implementation

[0043] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0044] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0045] The following reference Figures 1 to 6 Some embodiments according to the present invention are described.

[0046] like Figure 1 and Figure 2 As shown, this embodiment provides a split encoder 100, which ensures the positioning accuracy of the circuit board 104 in the mounting base 102 through a multi-point limiting method, thereby ensuring the concentricity of the magnetic field induction of the magnetic component 108 and the circuit board 104, and improving the measurement accuracy, stability and service life of the encoder.

[0047] Specifically, the split encoder 100 includes a mounting base 102, a circuit board 104, a first limiting member 1062, a second limiting member 1064, and a magnetic assembly 108. The mounting base 102 includes a first side 1022 and a second side 1024 disposed opposite to each other. The mounting base 102 serves as the basic frame for the entire assembly, providing stable support and a positioning platform. The first side 1022 is used to mount the circuit board 104, and the second side 1024 is used to accommodate the magnetic assembly 108. It is understood that the first side 1022 is for inserting or fixing the circuit board 104; the magnetic assembly 108 is positioned on the second side 1024 of the mounting base 102, maintaining a certain distance from the circuit board 104 to avoid interference. The detection port 1026 is located on the first side 1022 of the mounting base 102, and is in the form of an opening or hole, surrounding the circumference of the mounting base 102, so as to facilitate observation and adjustment of the position of the circuit board 104 during installation. In addition, the detection port 1026 can serve as the mating point between the first limiting member 1062 and the circuit board 104 to ensure the circumferential positioning of the circuit board 104.

[0048] It should be added that the circuit board 104 is detachably connected to the first side 1022 of the mounting base 102. Specifically, the circuit board 104 is connected to the mounting base 102 by means of screws or clips. The circuit board 104 can serve as a signal sensing and processing unit to sense changes in the magnetic field polarity of the magnetic component 108.

[0049] Furthermore, the mounting base 102 is provided with a connecting screw hole 122, and the circuit board 104 is provided with a mounting hole corresponding to the connecting screw hole 122. The circuit board 104 can be fixed on the mounting base 102 by connecting screws 120.

[0050] It is important to emphasize that the circuit board 104 achieves radial, circumferential, and axial positioning through the cooperation of multiple first limiting members 1062 and second limiting members 1064. The multiple first limiting members 1062 are distributed circumferentially along the detection port 1026 and fixed to the first side 1022 of the mounting base 102. The second limiting members 1064 are disposed on the circuit board 104. When the circuit board 104 is inserted, the first and second limiting members 1062 and 1064 provide radial and circumferential limiting functions, ensuring the circuit board 104 is in the correct angle and position. They also restrict the circuit board 104 from moving axially, i.e., along the second side 1024 of the mounting base 102, maintaining the relative position of the circuit board 104 and the magnetic component 108, ensuring the concentricity of the magnetic field induction.

[0051] The magnetic component 108 is located on the second side 1024 of the mounting base 102. It can generate a magnetic field to sense changes in magnetic poles and complete the detection of angle and number of rotations. Furthermore, the magnetic component 108 maintains a certain distance from the circuit board 104 to achieve non-contact detection while ensuring the stability of the magnetic field.

[0052] The circuit board 104 is detachably connected to the mounting base 102, which facilitates disassembly and maintenance.

[0053] Through the above-mentioned multi-point limiting method design, the solution achieves multi-dimensional positioning of circuit board 104, namely radial and axial, which greatly improves the assembly accuracy.

[0054] Furthermore, the first limiting member 1062 applies radial pressure to the circuit board 104 through its mechanical structure, restricting the positional displacement of the circuit board 104 in the radial direction, i.e., perpendicular to the axial direction, ensuring that the center of the circuit board 104 is concentric with the magnetic member 1088. The structure of the first limiting member 1062 and the second limiting member 1064 cooperate to form an axial blocking surface, restricting the movement of the circuit board 104 toward the second side 1024 of the mounting base 102 along the axial direction.

[0055] It is understood that when the circuit board 104 is inserted, the elastic deformation of the first limiting member 1062 generates a radial clamping force and forms an axial blocking surface. Through radial clamping, the circuit board 104 is prevented from becoming eccentric due to vibration or installation error, ensuring the accuracy of magnetic field induction, preventing the circuit board 104 from sliding along the axial direction to the second side 1024, and ensuring its axial position is stable.

[0056] With both radial and axial limiting, the circuit board 104 is firmly fixed in the mounting base 102, with high positional accuracy and stability, avoiding eccentricity, skewing or axial misalignment of the circuit board 104, ensuring the accuracy of magnetic field sensing and the performance of the split encoder 100.

[0057] Based on this, by placing the magnetic component 108 on the second side 1024 of the mounting base 102, the circuit board 104 is precisely positioned by the above-mentioned limiting method, ensuring that its sensing area is concentric with the magnetic component 1088 and the axial spacing is stable. The stable concentricity and spacing ensure the stability of the sensing signal and avoid signal fluctuation or distortion.

[0058] In some embodiments, optionally, the first boss 1102 (first limiting member 1062) on the mounting base 102 and the second limiting member 1064 on the circuit board 104 work together to achieve radial and axial limiting of the circuit board 104 (towards the second side 1024), ensuring high-precision positioning of the circuit board 104 within the mounting base 102, guaranteeing the concentricity of the magnetic component 108 and the circuit board 104 and stable magnetic field induction, and improving the measurement accuracy and long-term stability of the split encoder 100.

[0059] A first boss 1102 is provided on the end face of the first side 1022 of the mounting base 102, forming a support and limiting point around the mounting area of ​​the circuit board 104. The bottom surface of the circuit board 104 abuts against the first boss 1102, restricting the axial movement of the circuit board 104 toward the second side 1024, ensuring that the circuit board 104 can accurately sit on the first boss 1102 during installation and guaranteeing the stability of the installation posture. The second limiting member 1064 is the outer peripheral wall of the circuit board 104, cooperating with the first boss 1102. The second limiting member 1064 and the first boss 1102 form a mating surface, restricting the axial and radial degrees of freedom of the circuit board 104.

[0060] In some embodiments, optionally, such as Figure 3 As shown, the first boss 1102 is located on the end face of the first side 1022 of the mounting base 102, forming a protruding structure with a relatively large wall thickness. It serves as the main axial support and radial positioning reference for the circuit board 104. The second boss 1104 is located at the end of the first boss 1102 away from the second side 1024 of the mounting base 102, i.e., the outer end of the first boss 1102. The wall thickness of the second boss 1104 is less than that of the first boss 1102. The inner peripheral wall of the second boss 1104 and the inner peripheral wall of the first boss 1102 form a distinct stepped structure. The stepped structure is formed by the inner peripheral walls of the first boss 1102 and the second boss 1104, creating a radial height difference and constituting a stepped shape on the end face of the first side 1022 of the mounting base 102.

[0061] In the axial direction, the second boss 1104 is located at one end of the first boss 1102. The second boss 1104 has a smaller wall thickness, forming a stepped structure that is larger at the bottom and smaller at the top. The bottom surface and sidewalls of the circuit board 104 correspond to the stepped structure of the first boss 1102 and the second boss 1104. The stepped structure is located on the end face of the first side 1022 of the mounting base 102, facing the mounting direction of the circuit board 104.

[0062] The bottom surface of the circuit board 104 abuts against the end face of the first boss 1102, achieving axial positioning of the circuit board 104 and preventing the circuit board 104 from sliding toward the second side 1024 of the mounting base 102. The second boss 1104 and the first boss 1102 form a stepped structure, which can form multi-level contact with the side or bottom surface of the circuit board 104, providing additional support surfaces and positioning references, and increasing structural rigidity and stability.

[0063] The top surface of the first boss 1102 directly defines the axial mounting space of the circuit board 104, ensuring the flat assembly of the circuit board 104. Furthermore, the inner peripheral wall of the second boss 1104 restricts the radial mounting space of the circuit board 104, ensuring that the central axis of the circuit board 104 is concentric with the central axis of the magnetic shaft 1082. It can be understood that the inner peripheral wall of the second boss 1104 is further from the axis than the inner peripheral wall of the first boss, and the second boss 1104 is located on the first side 1022 of the first boss 1102, serving as a guide and pre-positioner, further restricting the radial degrees of freedom of the circuit board 104.

[0064] Understandably, the stepped structure gives the circuit board 104 a distinct "stepped" positioning feel during assembly, facilitating quick and accurate placement.

[0065] The outer peripheral wall of the second boss 1104 is flush with the outer peripheral wall of the first boss 1102.

[0066] The bottom surface of the circuit board 104 is in direct contact with the end face of the first boss 1102, forming an axial limit. The side of the circuit board 104 is in contact with the inner peripheral wall of the second boss 1104, forming an auxiliary radial limit and guide.

[0067] In some embodiments, optionally, the snap-fit ​​protrusion 1106 is disposed at the end of the second boss 1104 away from the first boss 1102, i.e., the end of the second boss 1104, extending radially inward along the detection port 1026, and is in the form of a protrusion or snap-fit ​​structure, for forming a snap-fit ​​with the second limiting member 1064 of the circuit board 104. In this solution, the second limiting member 1064 is a portion of the board body 1042 of the circuit board 104, and is directly snapped between the snap-fit ​​protrusion 1106 and the first boss 1102 through the board body 1042, thereby achieving the connection. Furthermore, a corresponding snap-fit ​​structure may be provided on the edge of the board body 1042 portion of the circuit board 104 to improve the stability of the snap-fit ​​connection.

[0068] The second boss 1104 is located at the end of the first boss 1102 away from the second side 1024, forming the boundary of the stepped structure. The snap-fit ​​protrusion 1106 extends radially inward along the detection port 1026 and is located at the protruding part at the end of the second boss 1104. The snap-fit ​​protrusion 1106 extends radially inward along the detection port 1026, limiting the slight radial offset of the circuit board 104. Through the snap-fit ​​method, the relative position of the circuit board 104 and the mounting base 102 is ensured to be accurate, and the concentricity is improved.

[0069] The circuit board 104 abuts against the bottom surface (end face) of the first protrusion 1102, and the above-mentioned snap-fit ​​method restricts the axial movement of the circuit board 104 along the second side 1024. The snap-fit ​​protrusion 1106 provides additional support in the axial direction to ensure the stability of the circuit board 104 in the axial direction.

[0070] In some embodiments, optionally, the outer peripheral surfaces of the first boss 1102 and the second boss 1104 are on the same plane, i.e., coplanar, forming a continuous stepped boundary surface. With the inner sidewall of the second boss 1104 further outward, a stepped structure is formed between the inner sides of the first boss 1102 and the second boss 1104, facilitating the installation and fixation of the circuit board 104. Furthermore, the coplanar design helps to disperse stress and improve durability.

[0071] In some embodiments, such as Figure 5 As shown, optionally, the first limiting member 1062 and the second limiting member 1064 constitute a cooperating positioning structure, one of which is a positioning post 1122 and the other is a positioning hole 1124. The positioning post 1122 is a columnar structure protruding on the mounting base 102 or the circuit board 104, and the positioning hole 1124 is a corresponding hole located on another component (circuit board 104 or mounting base 102). The diameter of the positioning hole 1124 is matched with the positioning post 1122.

[0072] The positioning post 1122 engages with the positioning hole 1124, with the end face or side wall of the positioning post 1122 tightly fitting with the inner wall of the positioning hole 1124 to restrict relative movement. After the positioning post 1122 is inserted into the positioning hole 1124, the radial and circumferential offset between the circuit board 104 and the mounting base 102 can be restricted to ensure concentricity. The angular positioning is achieved through the engagement of the post and the hole, preventing the circuit board 104 from rotating and misaligning.

[0073] In some embodiments, optionally, such as Figure 4 and Figure 5 As shown, the positioning post 1122 is fixedly mounted on the mounting base 102, and is generally cylindrical or columnar in shape. The end face of the positioning post 1122 has a positioning protrusion 1126, which can be a dot, a peak, a sphere, etc., to facilitate insertion and mating. The board body 1042 of the circuit board 104 has a positioning hole 1124 corresponding to the positioning post 1122. The diameter and shape of the positioning hole 1124 match the positioning protrusion 1126, and the bottom surface of the circuit board 104 abuts against the positioning post 1122 to ensure stable positioning.

[0074] It is understood that the circuit board 104 achieves axial support by abutting against the positioning post 1122. The positioning protrusion 1126 extends into the positioning hole 1124 of the circuit board 104 to achieve precise radial and circumferential positioning. The positioning post 1122 is fixed to the mounting base 102 as a whole to ensure the stability of the positioning reference. The cooperation between the positioning hole 1124 and the positioning protrusion 1126 restricts the radial and angular degrees of freedom of the circuit board 104 to ensure accurate installation posture.

[0075] The positioning protrusion 1126 is inserted into the positioning hole 1124 to restrict the radial movement of the circuit board 104, ensuring that the central axis of the circuit board 104 is concentric with the mounting base 102 (i.e., the magnetic component 108). The shape matching between the positioning protrusion 1126 and the positioning hole 1124 restricts the rotation of the circuit board 104 around the axis, ensuring the correct angle. It can be understood that after the positioning protrusion 1126 is inserted into the positioning hole 1124, the axial positioning of the circuit board 104 can be achieved by tightening the corresponding screw.

[0076] In some embodiments, the first limiting member 1062 and the mounting base 102 are optionally manufactured using an integral molding process, and are made of the same material and structure. The first limiting member 1062 does not need to be installed or fixed separately and directly constitutes part of the mounting base 102.

[0077] The first limiting member 1062 serves as the end face or peripheral structure of the mounting base 102 and is directly integrated with the mounting base 102. The circuit board 104 cooperates with the first limiting member 1062 through abutment, snap-fit, or other means to achieve positioning and limiting. Since the first limiting member 1062 is integrated with the mounting base 102, the structural dimensions and positional relationship are highly stable, reducing assembly errors.

[0078] In some embodiments, optionally, such as Figure 2 and Figure 5 As shown, the magnetic assembly 108 includes a magnetic shaft 1082, magnetic components 1088, and a connector 1090. The magnetic shaft 1082, as the main structure of the magnetic assembly 108, is typically a hollow shaft. The magnetic shaft 1082 has an internal cavity 1084 for mounting some of the magnetic components 1088 (such as magnetic rings, magnetic sheets, etc.). The magnetic shaft 1082 has multiple radially arranged connecting holes 1086 with internal threads for mating with the connector 1090. The magnetic shaft 1082 also has a central shaft hole 1092 for mating with the rotating shaft 2022 of the device under test, achieving a coaxial connection.

[0079] At least a portion of the magnetic component 1088 is installed in the receiving cavity 1084 of the magnetic shaft 1082. The magnetic component 1088 can generate a magnetic field for the encoder circuit board 104 to sense and detect.

[0080] The connector 1090 is threaded into the radial connection hole 1086 of the magnetic shaft 1082 to fix the magnetic shaft 1082 to the rotating shaft 2022 or to assist in fixing the magnetic component 1088, so as to ensure a stable connection between the magnetic shaft 1082 and the rotating shaft 2022.

[0081] The magnetic shaft 1082 is fitted onto the measured rotating shaft 2022 through its shaft hole 1092, achieving a coaxial connection and ensuring that the magnetic shaft 1082 rotates synchronously with the rotating shaft 2022. The magnetic component 1088 is partially embedded or bonded within the receiving cavity 1084 of the magnetic shaft 1082, ensuring a stable and accurately positioned magnetic field source. The connector 1090 is threaded to the radial connecting hole 1086 of the magnetic shaft 1082, fixing the position of the magnetic shaft 1082 on the rotating shaft 2022 and preventing axial or radial loosening. The radial connecting holes 1086 of the magnetic shaft 1082 are evenly distributed, and the connector 1090 provides multi-point fixation, increasing connection stability and torque resistance.

[0082] In some embodiments, optionally, such as Figure 1 As shown, an assembly hole 114 is provided on the outer peripheral surface of the mounting base 102. Specifically, the mounting hole 114 is located on the side wall or outer shell of the mounting base 102. The assembly hole 114 is axially continuous or partially continuous, and its direction is parallel to the axis of rotation.

[0083] The number of mounting holes 114 can be multiple, evenly distributed to ensure stable installation.

[0084] The rotating device 202 (such as a motor housing, mechanical bearing housing, etc.) has pre-drilled holes 2024 corresponding to the mounting holes 114, and the two are connected by screws, locating pins, or fasteners. The mounting holes 114 are aligned with the pre-drilled holes of the rotating device 202 to form a connection channel. Fasteners (such as screws or bolts) are inserted through the mounting holes 114 to fix the device 202. The mounting holes 114 are axially arranged to ensure reasonable axial force on the connector 1090 and enhance stability.

[0085] The mounting hole 114 serves as a connection channel between the mounting base 102 and the rotating device 202. It is set along the axial direction and precisely corresponds to the preset hole position of the rotating device 202, ensuring the stable installation and accurate positioning of the mounting base 102.

[0086] like Figure 6 As shown, an embodiment of the second aspect of this application provides a rotating assembly 200, including a rotating device 202 and a split encoder 100. The rotating device 202 includes a rotating shaft 2022, which serves as the basic component for rotational motion. The split encoder 100 is detachably connected to the rotating device 202 for easy installation and maintenance. The split encoder 100 has a magnetic component 108, and the magnetic shaft 1082 of the magnetic component 108 is mounted on the rotating shaft 2022 by a sleeve.

[0087] The magnetic component 108 rotates together with the rotating shaft 2022, and the magnetic shaft 1082 itself can move freely or be detached relative to the rotating shaft 2022.

[0088] The magnetic shaft 1082 is mounted on the rotating shaft 2022 and fixed by fasteners or mating structures to ensure that the magnetic shaft 1082 rotates synchronously with the rotating shaft 2022.

[0089] This application also provides a split encoder 100, which mainly consists of two parts: a body assembly and a magnet assembly. The body assembly mainly comprises a circuit board locking pin (i.e., connecting screw 120), a circuit board 104, and a mounting base 102. The circuit board 104 is installed inside the mounting base 102, which is provided with a radial limiting device and an axial limiting device (i.e., a first limiting member 1062) to radially and axially position the circuit board 104, improving installation accuracy. The radial limiting device can deform slightly during the installation of the circuit board 104, facilitating its placement within the mounting base 102. After the circuit board 104 is installed in the mounting base 102, it is secured by the circuit board locking pin.

[0090] The magnet assembly mainly consists of a magnet (i.e., magnetic component 1088), a magnet shaft (i.e., magnetic shaft 1082), and a set screw (i.e., connector 1090). At least a portion of the magnet is installed in a receiving cavity (i.e., receiving cavity 1084) inside the magnet shaft, and the magnet may optionally be bonded to the receiving cavity; the magnet shaft is provided with a threaded hole along the radial direction that mates with the set screw.

[0091] During operation, the magnet assembly is fixed to the rotating shaft 2022 of the rotating device 202 and rotates with the rotating shaft 2022. The circuit board 104 set on the main body assembly can sense the polarity of different magnetic poles on the magnet and convert the sensed rotating magnetic field signal into an electrical signal that can be used by the intelligent control system. The signal is transmitted to the control system through the interface set on the circuit board 104 to form a closed-loop control.

[0092] Another form of encoder with a limit device is shown in which the circuit board 104 has a hole for matching the limit (i.e., positioning hole 1124), which cooperates with the limit device (i.e., positioning post 1122) in the mounting base 102 to achieve the limit function.

[0093] From the cross-sectional view Figure 3 The relative positions of the limiting device and circuit board 104 after installation can be seen. A through hole along the axial direction can also be seen on the mounting base 102. During installation, this through hole is fitted into the rotating shaft 2022 of the rotating device 202. Additionally, as shown... Figure 6 As shown, the rotating shaft 2022 is provided with screw holes distributed radially. The set screws contact and fasten with the rotating shaft 2022 of the rotating device 202 through the screw holes, thereby realizing the fixed connection between the magnetic shaft 1082 and the rotating shaft 2022.

[0094] When fixing the encoder on the device under test, the first step is to insert the encoder magnet assembly through the axial hole of the magnetic shaft into the rotating shaft 2022 under test. The second step is to screw in and tighten the set screws in sequence to fix the magnet assembly relative to the rotating shaft 2022. The third step is to place the encoder body assembly on the mounting surface, so that the end face of the base is in contact with the mounting surface and the mounting thread holes are aligned. The fourth step is to screw the mounting screws through the through holes on the mounting base 102 into the fixing thread holes of the optional device to fix the body assembly relative to the body of the rotating device 202.

[0095] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0096] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0097] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0098] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A split encoder, comprising: include: The mounting base includes a first side and a second side disposed opposite to each other, and the mounting base is provided with a detection port; A circuit board is detachably connected to the mounting base, and the circuit board is disposed on the first side of the mounting base; A plurality of first limiting members and a plurality of second limiting members are arranged opposite to each other. The plurality of first limiting members are arranged on the first side of the mounting base along the circumference of the detection port, and the second limiting members are arranged on the circuit board. A magnetic component is disposed on the second side of the mounting base, and the magnetic component is spaced apart from the mounting base; The first limiting member and the second limiting member cooperate to restrict the axial movement of the circuit board relative to the mounting base toward the second side, and to limit the radial movement of the circuit board relative to the mounting base.

2. The split encoder of claim 1, wherein, The first limiting member specifically includes: The first protrusion is located on the end face of the first side of the mounting base; The circuit board abuts against the first boss.

3. The split encoder of claim 2, wherein, The first limiting member includes: The second protrusion is located at the end of the first protrusion away from the second side, and a stepped structure is formed between the inner peripheral wall of the second protrusion and the inner peripheral wall of the first protrusion. The wall thickness of the second boss is less than that of the first boss.

4. The split encoder of claim 3, wherein, Also includes: A snap-fit ​​protrusion is provided at the end of the second protrusion away from the first protrusion, and the snap-fit ​​protrusion extends radially inward along the detection port; The second limiting member is the board body of the circuit board, and the second limiting member is engaged between the engaging protrusion and the first protrusion.

5. The split encoder of claim 3, wherein, The outer peripheral surface of the second boss is coplanar with the outer peripheral surface of the first boss.

6. The split encoder of claim 1, wherein, One of the first limiting member and the second limiting member is a positioning post, and the other is a positioning hole.

7. The split encoder of claim 6, wherein, The positioning post is disposed on the mounting base, and the end face of the positioning post is provided with a positioning protrusion; The circuit board has the positioning hole, the circuit board abuts against the positioning post, and the positioning protrusion extends into the positioning hole.

8. The split encoder of any one of claims 1 to 7, wherein, The magnetic component includes: A magnetic shaft, wherein a receiving cavity is provided inside the magnetic shaft, and a plurality of radially arranged connecting holes are provided on the magnetic shaft; A magnetic element, at least a portion of which is disposed in the receiving cavity; The connector is threaded into the connecting hole; The magnetic shaft is provided with a shaft hole for cooperating with the rotating shaft.

9. The split encoder of any one of claims 1 to 7, wherein, Also includes: An assembly hole is provided on the outer peripheral surface of the mounting base, and the assembly hole is provided axially. The assembly hole is configured to correspond to a preset hole position on the rotating device.

10. A rotating assembly characterized by, include: A rotating device, the rotating device including a rotating shaft; The split encoder as described in any one of claims 1 to 9 is detachably connected to the rotating device; In this case, the magnetic shaft of the magnetic component of the split encoder is fitted onto the rotating shaft.

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