Electric actuator with high-precision encoder
By incorporating shielding and conductive coatings into the encoder and motor wiring, along with sealing and heat dissipation designs, the problems of complex installation and poor environmental adaptability of high-precision encoders are solved, achieving efficient installation and improved anti-interference capabilities.
Patent Information
- Application Number
- CN202423281631.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing high-precision encoders are complex to install and debug, and are prone to signal distortion and accuracy degradation in harsh environments.
The system employs a shielding layer on the outer wall of the encoder and motor wiring, a conductive coating on the inside, and a sealing plug at the connection point, combined with a heat dissipation structure, to simplify the installation process and improve environmental adaptability.
It effectively suppresses common-mode interference, improves the anti-interference capability of signal transmission, enhances the electromagnetic field shielding effect, prevents contaminants from entering, simplifies the installation process, and improves installation efficiency and accuracy.
Smart Images

Figure CN223652090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric actuator technology, and in particular to an electric actuator with a high-precision encoder. Background Technology
[0002] The broadest definition of an actuator is: a drive device that provides linear or rotary motion, utilizing some kind of driving energy and operating under the action of some control signal. Actuators use liquid, gas, electricity, or other energy sources and convert them into driving action through a motor, cylinder, or other device. To accurately measure the rotational angle and speed of a motor, a high-precision encoder is usually installed at the end of the motor shaft. The encoder, rotating synchronously with the motor shaft, converts the angular displacement information of the motor shaft into an electrical signal output.
[0003] In the existing technology, the installation and debugging of high-precision encoders require professional technicians and equipment. The operation process is relatively complex and requires high installation accuracy. Improper installation can easily lead to increased measurement errors or even equipment failure. Moreover, in some harsh industrial environments, such as high temperature, high humidity, and strong vibration, the performance of high-precision encoders may be affected, resulting in problems such as signal distortion and decreased accuracy. Utility Model Content
[0004] The purpose of this invention is to address the problems in the existing technology where the installation and debugging of high-precision encoders require professional technicians and equipment, the operation process is relatively complex, and the installation accuracy requirements are high. Improper installation can easily lead to increased measurement errors or even equipment failure. Furthermore, in some harsh industrial environments, such as high temperature, high humidity, and strong vibration, the performance of high-precision encoders may be affected, resulting in signal distortion and decreased accuracy. Therefore, this invention proposes an electric actuator with a high-precision encoder.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: including a main body and an auxiliary body; the auxiliary body includes an encoder body, an input wire is fixedly provided on one side of the encoder body, an output wire is provided on the other side of the encoder body, a shielding layer is fixedly provided on the outer wall of both the input wire and the output wire, a conductive coating is fixedly provided inside the encoder body, a through hole is opened through the inside of the encoder body, and a sealing plug is fixedly installed inside the through hole.
[0006] Preferably, a heat dissipation hole is provided through the top of the encoder body, and heat dissipation fins are fixedly installed on both sides of the encoder body.
[0007] Preferably, a set of mounting plates is fixedly installed on the outer wall of the encoder body, and mounting holes are opened through the interior of each set of mounting plates.
[0008] Preferably, the main structure includes a motor body, and a power supply wire is fixedly disposed on the outer wall of the motor body.
[0009] Preferably, a set of limiting blocks are fixedly installed on the top of the motor body, and the set of limiting blocks are respectively set at the top corner.
[0010] Preferably, the encoder body is sleeved on the outer wall of the output shaft of the motor body, and the sealing plug is disposed on the outer wall of the motor body.
[0011] Preferably, a set of the mounting plates are respectively disposed on one side of a set of limiting blocks.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, by fixing a shielding layer on the outer wall of both the input and output wiring, common-mode interference can be effectively suppressed and the anti-interference capability of signal transmission can be improved. Furthermore, by fixing a conductive coating on the inner wall of the encoder body, the shielding effect against electromagnetic fields can be further enhanced, isolating the internal circuit from external interference sources. The sealing plug is used to improve the sealing performance when the encoder body is connected to the motor body, preventing dust, moisture, oil and other contaminants from entering the encoder and improving the encoder's adaptability to different environments.
[0014] 2. In this utility model, a set of mounting plates is fixedly installed on the outer wall of the encoder body, and a set of limiting blocks is fixedly installed on the top of the motor body. When the encoder body is fitted onto the outer wall of the output shaft of the motor body, the installation angle of the encoder body is adjusted by rotating the encoder body, and the mounting plates are set on one side of the limiting blocks, which facilitates quick installation and positioning and reduces the installation difficulty. Attached Figure Description
[0015] Figure 1 A perspective view of an electric actuator with a high-precision encoder is provided for this utility model;
[0016] Figure 2 A front view of an electric actuator with a high-precision encoder is provided for this utility model;
[0017] Figure 3 A perspective view of the main mechanism of an electric actuator with a high-precision encoder is provided for this utility model.
[0018] Figure 4 This utility model provides a cross-sectional view of an auxiliary mechanism in an electric actuator with a high-precision encoder.
[0019] Legend: 1. Main mechanism; 101. Motor body; 102. Power supply wiring; 103. Limit block; 2. Auxiliary mechanism; 201. Encoder body; 202. Input wiring; 203. Output wiring; 204. Shielding layer; 205. Conductive coating; 206. Through hole; 207. Sealing plug; 208. Heat dissipation hole; 209. Heat dissipation fins; 210. Mounting plate; 211. Mounting hole. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1: As Figures 1-4 As shown, this utility model provides an electric actuator with a high-precision encoder, including: a main body 1 and an auxiliary body 2; the auxiliary body 2 includes an encoder body 201, an input wire 202 is fixedly provided on one side of the encoder body 201, an output wire 203 is provided on the other side of the encoder body 201, a shielding layer 204 is fixedly provided on the outer wall of both the input wire 202 and the output wire 203, a conductive coating 205 is fixedly provided inside the encoder body 201, a through hole 206 is opened through the inside of the encoder body 201, and a sealing plug 207 is fixedly installed inside the through hole 206.
[0023] The overall effect of Embodiment 1 is as follows: by fixing an input wiring 202 on one side of the encoder body 201 and an output wiring 203 on the other side, and fixing a shielding layer 204 on the outer walls of both the input wiring 202 and the output wiring 203, common-mode interference can be effectively suppressed and the anti-interference capability of signal transmission can be improved. Then, a conductive coating 205 is fixedly installed on the inner wall of the encoder body 201, which can further enhance the shielding effect against electromagnetic fields and isolate the internal circuit from external interference sources. A through hole 206 is opened through the inside of the encoder body 201, and a sealing plug 207 is fixedly installed inside the through hole 206 to improve the sealing performance when the encoder body 201 is connected to the motor body 101, preventing dust, moisture, oil and other contaminants from entering the encoder. A heat dissipation hole 208 is opened through the top of the encoder body 201, and heat dissipation fins 209 are fixedly installed on both sides of the encoder body 201 to dissipate the heat generated by the encoder during operation in a timely manner.
[0024] Example 2: As Figures 1-4 As shown, a heat dissipation hole 208 is opened through the top of the encoder body 201, and heat dissipation fins 209 are fixedly installed on both sides of the encoder body 201; a set of mounting plates 210 are fixedly installed on the outer wall of the encoder body 201, and mounting holes 211 are opened through the interior of the set of mounting plates 210; the main body mechanism 1 includes a motor body 101, and a power supply wiring 102 is fixedly installed on the outer wall of the motor body 101; a set of limiting blocks 103 are fixedly installed on the top of the motor body 101, and the set of limiting blocks 103 are respectively set at the top corner; the encoder body 201 is sleeved on the outer wall of the output shaft of the motor body 101, and a sealing plug 207 is set on the outer wall of the motor body 101; a set of mounting plates 210 are respectively set on one side of the set of limiting blocks 103.
[0025] The overall effect of Embodiment 2 is as follows: by opening a heat dissipation hole 208 through the top of the encoder body 201, and fixing heat dissipation fins 209 on both sides of the encoder body 201, the heat generated by the encoder during operation can be dissipated in time. A set of mounting plates 210 are fixedly installed on the outer wall of the encoder body 201, and mounting holes 211 are opened through the inside of the set of mounting plates 210. During installation, the encoder body 201 is sleeved on the outer wall of the output shaft of the motor body 101. At this time, the sealing plug 207 contacts the output end of the motor body 101 to seal and fix the connection part. Then, the set of mounting plates 210 are respectively set on one side of a set of limit blocks 103 to facilitate quick positioning and installation of the encoder body 201, reduce the difficulty of installation, and improve the efficiency of installation. Finally, a power wiring 102 is fixedly set on the outer wall of the motor body 101 to facilitate connection to an external power source to supply power to the motor body 101 during use.
[0026] Working Principle: In use, firstly, a power supply wire 102 is fixedly installed on the outer wall of the motor body 101 to facilitate connection to an external power source, supplying power to the motor body 101 during operation. A set of limit blocks 103 are fixedly installed on the top of the motor body 101 to provide limiting and positioning functions during encoder body 201 installation, thereby improving installation efficiency. Secondly, an input wire 202 is fixedly installed on one side of the encoder body 201, and an output wire 203 is fixedly installed on the other side. Shielding layers 204 are fixedly installed on the outer walls of both the input and output wires 202 and 203, effectively suppressing common-mode interference and improving the anti-interference capability of signal transmission. Then, a conductive coating 205 is fixedly installed on the inner wall of the encoder body 201 to further enhance the shielding effect against electromagnetic fields, isolating the internal circuit from external interference sources. A through hole 206 is opened inside the encoder body 201, and the through hole 206... An internally fixed sealing plug 207 is installed to improve the sealing performance when the encoder body 201 is connected to the motor body 101, preventing dust, moisture, oil and other contaminants from entering the encoder. A heat dissipation hole 208 is opened through the top of the encoder body 201, and heat dissipation fins 209 are fixedly installed on both sides of the encoder body 201 to dissipate the heat generated during encoder operation. Finally, a set of mounting plates 210 are fixedly installed on the outer wall of the encoder body 201, and mounting holes 211 are opened through the inside of the mounting plates 210. During installation, the encoder body 201 is fitted onto the outer wall of the output shaft of the motor body 101. At this time, the sealing plug 207 contacts the output end of the motor body 101 to seal and fix the connection. The set of mounting plates 210 are respectively set on one side of a set of limit blocks 103 to facilitate quick positioning and installation of the encoder body 201, reducing the difficulty of installation and improving the efficiency of installation.
[0027] The wiring diagrams of the motor body 101 and encoder body 201 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the control method and wiring arrangement of the motor body 101 and encoder body 201 will be explained in more detail.
[0028] 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 other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. An electric actuator with a high-precision encoder, characterized in that, include: Main structure (1) and auxiliary structure (2); The auxiliary mechanism (2) includes an encoder body (201), an input wire (202) is fixedly provided on one side of the encoder body (201), an output wire (203) is provided on the other side of the encoder body (201), a shielding layer (204) is fixedly provided on the outer wall of both the input wire (202) and the output wire (203), a conductive coating (205) is fixedly provided inside the encoder body (201), a through hole (206) is opened through the inside of the encoder body (201), and a sealing plug (207) is fixedly installed inside the through hole (206).
2. The electric actuator with a high-precision encoder according to claim 1, characterized in that: A heat dissipation hole (208) is provided through the top of the encoder body (201), and heat dissipation fins (209) are fixedly installed on both sides of the encoder body (201).
3. An electric actuator with a high-precision encoder according to claim 1, characterized in that: A set of mounting plates (210) are fixedly installed on the outer wall of the encoder body (201), and mounting holes (211) are opened through the interior of each set of mounting plates (210).
4. An electric actuator with a high-precision encoder according to claim 3, characterized in that: The main body (1) includes a motor body (101), and a power supply wiring (102) is fixedly installed on the outer wall of the motor body (101).
5. An electric actuator with a high-precision encoder according to claim 4, characterized in that: A set of limiting blocks (103) are fixedly installed on the top of the motor body (101), and the set of limiting blocks (103) are respectively set at the top corner.
6. An electric actuator with a high-precision encoder according to claim 4, characterized in that: The encoder body (201) is sleeved on the outer wall of the output shaft of the motor body (101), and the sealing plug (207) is disposed on the outer wall of the motor body (101).
7. An electric actuator with a high-precision encoder according to claim 5, characterized in that: A set of mounting plates (210) are respectively disposed on one side of a set of limiting blocks (103).