Servo driver encoder interface sinking structure

By recessing the encoder interface into the servo drive and reinforcing it, the problem of encoder interface susceptibility to damage is solved, achieving higher protection performance and signal stability, making it suitable for encoder interface design of servo drives.

CN224192179UActive Publication Date: 2026-05-01NINGBO PHASE MOTION CONTROL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO PHASE MOTION CONTROL
Filing Date
2025-05-09
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The encoder interface of existing servo drives is susceptible to external impacts, vibrations, or dust intrusion, resulting in unstable signal transmission and a large footprint, which is not conducive to the miniaturization and integration of the device.

Method used

The encoder interface is recessed into the servo drive, a recessed interface slot is set up and a protective cover is installed, and the encoder interface is fixed by reinforcing sheet metal parts and screws to enhance mechanical strength and protection performance.

Benefits of technology

It improves the protection performance and signal stability of the encoder interface, reduces the height of the equipment, avoids direct damage to the interface from the external environment, and enhances the durability and installation stability of the interface.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224192179U_ABST
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Abstract

The utility model discloses a servo driver encoder interface sinking structure which comprises a servo driver control panel with an encoder interface, and the encoder interface is arranged on the long side of the side face of the control panel. A cover plate of the interface slot is arranged on one side of the encoder of the control panel, and a side metal plate cover plate is arranged on one side of the front surface of the control panel. An encoder interface is designed into the servo driver in a sinking mode, and a sinking type interface groove is formed in a shell of the servo driver. A protective cover is installed in the groove and fixed through a buckle. The encoder interface is fixed on the reinforcing sheet metal part through a screw, and the reinforcing sheet metal part is fixed on the side sheet metal cover plate through a countersunk head screw. According to the design, the front space of the driver is saved, and the protection performance, the installation stability, the durability and the reliability of the interface are improved.
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Description

A servo driver encoder interface recessed structure Technical Field

[0001] This utility model belongs to the field of servo drive technology, and in particular relates to a recessed structure for the encoder interface of a servo drive. Background Technology

[0002] In industrial automation and precision control systems, servo drives and encoders are key components. Encoders provide real-time feedback on the position and speed of the motor, while servo drives control the motor's movement based on the encoder's feedback signals. The encoder interface of a servo drive is susceptible to external shocks, vibrations, or dust intrusion. Therefore, the rationality of the encoder interface's structural design directly affects the stability and reliability of signal transmission.

[0003] The prior art utility model with publication number CN222720761U discloses an intelligent control encoder interface and an AC servo driver, belonging to the field of encoder technology. This intelligent control encoder interface includes an auxiliary connection mechanism installed outside the interface of the driver body. The interface connects to the intelligent control encoder. The auxiliary connection mechanism includes a locking member sleeved on the outside of the interface. A locking positioning member is provided outside the locking member. The locking member uses limiting teeth and a limiting strip to lock the connection wire between the locking member and the intelligent control encoder, ensuring a tight connection between the connector and the interface. This, combined with the auxiliary connection mechanism, reduces bending of the wire and connector, keeping the bend located on the wire. Multiple telescopic rods compress and limit the wire at the connector, preventing the connector from falling off and increasing connection stability. This also effectively prevents bending at the connection point between the connector and the wire, increasing the service life of the wire. Summary of the Invention

[0004] Traditional encoder interfaces are typically located on the side or top of the servo drive, flush with or protruding from the drive surface. This design presents challenges in installation and maintenance, including large space requirements and inconvenient wiring, hindering device miniaturization and integration. Furthermore, this design is susceptible to external impacts, vibrations, or dust intrusion. Therefore, the rationality of the encoder interface's structural design directly affects the stability and reliability of signal transmission.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a servo driver encoder interface recessed structure, including a servo driver control board with an encoder interface, the encoder interface being set on the long side of the control board; a cover plate with an interface groove on the encoder side of the control board, and a side sheet metal cover plate on the front surface of the control board; the encoder interface is a recessed interface, the interface surface being lower than the interface groove of the cover plate; a protective cover is provided at the connection between the interface groove and the encoder interface.

[0006] Specifically, the encoder interface is equipped with a reinforcing sheet metal part to fix the encoder interface and prevent it from becoming loose.

[0007] Specifically, the reinforced sheet metal parts are mounted on the encoder interface with screws, and are also connected and fixed to the side sheet metal cover plate with countersunk screws.

[0008] Specifically, a protective cover is provided at the connection between the cover plate and the encoder interface. One end of the protective cover is connected to the encoder interface, and the other end is engaged and fixed to the cover plate. Threaded holes are provided on the cover plate and the side sheet metal cover plate to connect and fix to the servo drive housing.

[0009] Specifically, one end of the protective cover has an opening corresponding to the encoder interface, through which the encoder interface protrudes; the other end of the protective cover has a buckle, which protrudes from the interface groove of the cover plate and engages to secure it.

[0010] Specifically, the control panel is fixedly connected to the side sheet metal cover plate by screws.

[0011] Specifically, the cover plate is secured to the encoder interface via a protective cover, and the side of the cover plate is connected and fixed to the side sheet metal cover plate via countersunk screws.

[0012] Specifically, a slot is provided at the connection between the cover plate and the side sheet metal cover plate. During installation, the cover plate is temporarily locked onto the side sheet metal cover plate through the slot for temporary fixation.

[0013] The beneficial effects of this utility model are as follows: By recessing the encoder interface into the servo driver, a recessed interface slot is provided on the servo driver housing. A protective cover is installed inside the slot and secured with clips; the encoder interface is fixed to a reinforcing sheet metal part with screws, and the reinforcing sheet metal part is fixed to a side sheet metal cover plate with countersunk screws. This design saves space on the front of the driver while improving the interface's protection performance, installation stability, durability, and reliability. Compared to existing technologies, by recessing the encoder structure into the driver, the optimized space layout reduces the product's size and overall equipment height, effectively preventing direct damage to the interface from the external environment and improving its protection performance. The internal protective cover effectively prevents foreign objects from falling in. By securing the encoder interface with a reinforcing sheet metal part, the problem of encoder interface shaking after wiring is avoided, increasing mechanical strength and enhancing the interface's durability and signal stability. Attached Figure Description

[0014] Figure 1 is an overall structural diagram of this utility model.

[0015] Figure 2 is an exploded view of this utility model.

[0016] In the diagram, 1 is the control board, 2 is the encoder interface, 3 is the side sheet metal cover, 4 is the cover, 5 is the interface slot, 6 is the protective cover, and 7 is the reinforcing sheet metal part. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Example 1: A recessed encoder interface structure for a servo drive includes a servo drive control board 1 with an encoder interface 2, the encoder interface 2 being located on the long side of the control board 1; a cover plate 4 with an interface slot 5 is provided on the encoder side of the control board 1, and a side sheet metal cover plate 3 is provided on the front surface of the control board 1. By recessing the encoder structure into the drive and placing it on the side of the servo drive control board 1, this spatial layout optimization reduces the product's size and overall equipment height, effectively preventing direct damage to the interface from the external environment and improving the interface's protection performance.

[0019] The encoder interface 2 is equipped with a reinforcing sheet metal part 7, which fixes the encoder interface 2 to prevent loosening, improves the stability of the encoder interface 2, and ensures the security of data transmission and the durability of the interface.

[0020] The reinforced sheet metal part 7 is installed on the encoder interface 2 with screws, and is also connected and fixed to the side sheet metal cover plate 3 with countersunk screws.

[0021] A protective cover 6 is provided at the connection between the cover plate 4 and the encoder interface 2. One end of the protective cover 6 is connected to the encoder interface 2, and the other end is engaged and fixed with the cover plate 4.

[0022] One end of the protective cover 6 has an opening corresponding to the encoder interface 2, through which the encoder interface 2 protrudes; the other end of the protective cover 6 has a buckle that protrudes from the interface groove 5 of the cover plate 4 and engages to secure it. The protective cover 6 can effectively prevent foreign objects from falling in. By reinforcing the encoder interface 2 with the sheet metal part 7, the problem of shaking caused by the encoder interface 2 after wiring is avoided, increasing mechanical strength and enhancing the durability and signal stability of the interface.

[0023] The control board 1 is fixedly connected to the side sheet metal cover plate 3 by screws. The control board 1, the side sheet metal cover plate 3, and the cover plate 4 are fixedly connected in pairs, which ensures the overall structural stability and durability, and makes it less likely to cause accidents when plugging and unplugging the encoder interface 2.

[0024] The cover plate 4 is snapped onto the encoder interface 2 by the protective cover 6, and the side of the cover plate 4 is connected and fixed to the side sheet metal cover plate 3 by countersunk screws.

[0025] By recessing the encoder interface 2 into the servo drive, a recessed interface slot 5 is provided on the servo drive housing. A protective cover 6 is installed inside the slot and secured with clips. The encoder interface 2 is fixed to a reinforcing sheet metal part 7 with screws, and the reinforcing sheet metal part 7 is fixed to a side sheet metal cover plate 3 with countersunk screws. This design saves space on the front of the drive while improving the interface's protection, installation stability, durability, and reliability.

[0026] Compared to existing technologies, by recessing the encoder structure into the driver, the optimized spatial layout reduces the product's size and overall height, effectively preventing direct damage to the interface from the external environment and improving its protection. An internal protective cover 6 effectively prevents foreign objects from falling in. Strengthening the encoder interface 2 with sheet metal parts 7 prevents vibration caused by wiring, increasing mechanical strength and enhancing the interface's durability and signal stability.

[0027] Example 2: A recessed encoder interface structure for a servo drive includes a servo drive control board 1 with an encoder interface 2, the encoder interface 2 being located on the long side of the control board 1; a cover plate 4 with an interface slot 5 is provided on the encoder side of the control board 1, and a side sheet metal cover plate 3 is provided on the front surface of the control board 1. By recessing the encoder structure into the drive and placing it on the side of the servo drive control board 1, this spatial layout optimization reduces the product's size and overall equipment height, effectively preventing direct damage to the interface from the external environment and improving the interface's protection performance.

[0028] The encoder interface 2 is equipped with a reinforcing sheet metal part 7, which fixes the encoder interface 2 to prevent loosening, improves the stability of the encoder interface 2, and ensures the security of data transmission and the durability of the interface.

[0029] The reinforced sheet metal part 7 is installed on the encoder interface 2 with screws, and is also connected and fixed to the side sheet metal cover plate 3 with countersunk screws.

[0030] A protective cover 6 is provided at the connection between the cover plate 4 and the encoder interface 2. One end of the protective cover 6 is connected to the encoder interface 2, and the other end is engaged and fixed with the cover plate 4.

[0031] One end of the protective cover 6 has an opening corresponding to the encoder interface 2, through which the encoder interface 2 protrudes; the other end of the protective cover 6 has a buckle that protrudes from the interface groove 5 of the cover plate 4 and engages to secure it. The protective cover 6 can effectively prevent foreign objects from falling in. By reinforcing the encoder interface 2 with the sheet metal part 7, the problem of shaking caused by the encoder interface 2 after wiring is avoided, increasing mechanical strength and enhancing the durability and signal stability of the interface.

[0032] The control board 1 is fixedly connected to the side sheet metal cover plate 3 by screws. The control board 1, the side sheet metal cover plate 3, and the cover plate 4 are fixedly connected in pairs, which ensures the overall structural stability and durability, and makes it less likely to cause accidents when plugging and unplugging the encoder interface 2.

[0033] The cover plate 4 is snapped onto the encoder interface 2 by the protective cover 6, and the side of the cover plate 4 is connected and fixed to the side sheet metal cover plate 3 by countersunk screws.

[0034] In this embodiment, a slot is provided at the connection between the cover plate 4 and the side sheet metal cover plate 3. During installation, the cover plate 4 is temporarily engaged with the side sheet metal cover plate 3 through the slot for temporary fixation. The slot design ensures firmness while making installation more convenient. The temporary fixation through the slot also ensures a certain degree of structural stability in the event of accidental screw loosening.

[0035] By recessing the encoder interface 2 into the servo drive, a recessed interface slot 5 is provided on the servo drive housing. A protective cover 6 is installed inside the slot and secured with clips. The encoder interface 2 is fixed to a reinforcing sheet metal part 7 with screws, and the reinforcing sheet metal part 7 is fixed to a side sheet metal cover plate 3 with countersunk screws. This design saves space on the front of the drive while improving the interface's protection, installation stability, durability, and reliability.

[0036] Compared to existing technologies, by recessing the encoder structure into the driver, the optimized spatial layout reduces the product's size and overall height, effectively preventing direct damage to the interface from the external environment and improving its protection. An internal protective cover 6 effectively prevents foreign objects from falling in. Strengthening the encoder interface 2 with sheet metal parts 7 prevents vibration caused by wiring, increasing mechanical strength and enhancing the interface's durability and signal stability.

[0037] In this embodiment, during installation, the protective cover 6 is first snapped into the interface groove 5 of the cover plate 4, connecting the protective cover 6 and the cover plate 4 into a single unit. The reinforcing sheet metal part 7 is then fixed to the control plate 1 with screws. Next, the connected reinforcing sheet metal part 7 and the control plate 1 are installed on the side sheet metal cover plate 3 using countersunk screws. At this point, the protective cover 6 and the cover plate 4 are snapped together and installed on the side of the control plate 1. The side sheet metal cover plate 3 is temporarily fixed to the groove on the cover plate 4, and then the cover plate 4 is connected to the side sheet metal cover plate 3 with screws. At this point, the cover plate 4, the control plate 1, and the side sheet metal cover plate 3 are connected and snapped together in pairs, resulting in a stable structure.

[0038] Example 3: A recessed encoder interface structure for a servo drive includes a servo drive control board 1 with an encoder interface 2, the encoder interface 2 being located on the long side of the control board 1; a cover plate 4 with an interface slot 5 is provided on the encoder side of the control board 1, and a side sheet metal cover plate 3 is provided on the front surface of the control board 1. The encoder interface 2 is a recessed interface, with the interface surface lower than the interface slot 5 of the cover plate; a protective cover 6 is provided at the connection between the interface slot 5 and the encoder interface 2. By recessing the encoder structure into the drive and placing it on the side of the servo drive control board 1, this spatial layout optimization reduces the product's size and overall equipment height, effectively preventing direct damage to the interface from the external environment and improving the interface's protective performance.

[0039] The encoder interface 2 is equipped with a reinforcing sheet metal part 7, which fixes the encoder interface 2 to prevent loosening, improves the stability of the encoder interface 2, and ensures the security of data transmission and the durability of the interface.

[0040] The reinforced sheet metal part 7 is installed on the encoder interface 2 with screws, and is also connected and fixed to the side sheet metal cover plate 3 with countersunk screws.

[0041] A protective cover 6 is provided at the connection between the cover plate 4 and the encoder interface 2. One end of the protective cover 6 is connected to the encoder interface 2, and the other end is engaged and fixed with the cover plate 4.

[0042] One end of the protective cover 6 has an opening corresponding to the encoder interface 2, through which the encoder interface 2 protrudes; the other end of the protective cover 6 has a buckle that protrudes from the interface groove 5 of the cover plate 4 and engages to secure it. The protective cover 6 can effectively prevent foreign objects from falling in. By reinforcing the encoder interface 2 with the sheet metal part 7, the problem of shaking caused by the encoder interface 2 after wiring is avoided, increasing mechanical strength and enhancing the durability and signal stability of the interface.

[0043] The control board 1 is fixedly connected to the side sheet metal cover plate 3 by screws. In this embodiment, the control board 1 is provided with three sets of combined screw holes. Both the control board 1 and the side sheet metal cover plate 3 are relatively large panel structures, and the stability of the structure can be ensured by fixing them with multiple combined screws. The control board 1, the side sheet metal cover plate 3, and the cover plate 4 are fixedly connected in pairs, ensuring the overall structural stability and durability, and making it less likely for accidents to occur when plugging and unplugging the encoder interface 2.

[0044] The cover plate 4 is snapped onto the encoder interface 2 by the protective cover 6, and the side of the cover plate 4 is connected and fixed to the side sheet metal cover plate 3 by countersunk screws.

[0045] In this embodiment, a slot is provided at the connection between the cover plate 4 and the side sheet metal cover plate 3. During installation, the cover plate 4 is temporarily engaged with the side sheet metal cover plate 3 through the slot for temporary fixation. The slot design ensures firmness while making installation more convenient. The temporary fixation through the slot also ensures a certain degree of structural stability in the event of accidental screw loosening.

[0046] By recessing the encoder interface 2 into the servo drive, a recessed interface slot 5 is provided on the servo drive housing. A protective cover 6 is installed inside the slot and secured with clips. The encoder interface 2 is fixed to a reinforcing sheet metal part 7 with screws, and the reinforcing sheet metal part 7 is fixed to a side sheet metal cover plate 3 with countersunk screws. This design saves space on the front of the drive while improving the interface's protection, installation stability, durability, and reliability.

[0047] Compared to existing technologies, by recessing the encoder structure into the driver, the optimized spatial layout reduces the product's size and overall height, effectively preventing direct damage to the interface from the external environment and improving its protection. An internal protective cover 6 effectively prevents foreign objects from falling in. Strengthening the encoder interface 2 with sheet metal parts 7 prevents vibration caused by wiring, increasing mechanical strength and enhancing the interface's durability and signal stability.

[0048] In this embodiment, during installation, the protective cover 6 is first snapped into the interface groove 5 of the cover plate 4, connecting the protective cover 6 and the cover plate 4 into a single unit. The reinforcing sheet metal part 7 is then fixed to the control plate 1 with screws. Next, the connected reinforcing sheet metal part 7 and the control plate 1 are installed on the side sheet metal cover plate 3 using countersunk screws. At this point, the protective cover 6 and the cover plate 4 are snapped together and installed on the side of the control plate 1. The side sheet metal cover plate 3 is temporarily fixed to the groove on the cover plate 4, and then the cover plate 4 is connected to the side sheet metal cover plate 3 with screws. At this point, the cover plate 4, the control plate 1, and the side sheet metal cover plate 3 are connected and snapped together in pairs, resulting in a stable structure.

[0049] The above specific embodiments are merely preferred embodiments of this utility model, and are not intended to limit the specific implementation structure and scope of this utility model. In fact, some equivalent changes can be made according to the shape, structure, and design purpose of this utility model. Therefore, all equivalent changes made according to the shape, structure, and design purpose of this utility model should be included within the protection scope of this utility model, that is, these equivalent changes should all be protected by this utility model.

Claims

1. A recessed structure for a servo driver encoder interface, characterized in that, The system includes a servo drive control board with an encoder interface, which is located on the long side of the control board. The control board has a cover plate with an interface slot on the encoder side and a side sheet metal cover plate on the front surface of the control board. The encoder interface is a recessed interface, with the interface surface lower than the interface slot of the cover plate. A protective cover is provided at the connection between the interface slot and the encoder interface.

2. The servo driver encoder interface recessed structure according to claim 1, characterized in that, The encoder interface is equipped with a reinforcing sheet metal part to fix the encoder interface and prevent it from becoming loose.

3. The servo driver encoder interface recessed structure according to claim 2, characterized in that, The reinforced sheet metal parts are mounted on the encoder interface with screws, and are also connected and fixed to the side sheet metal cover plate with countersunk screws.

4. The servo driver encoder interface recessed structure according to claim 1, characterized in that, The cover plate and the side sheet metal cover plate are provided with threaded holes to connect and fix with the servo driver housing.

5. The servo driver encoder interface recessed structure according to claim 1, characterized in that, One end of the protective cover has an opening corresponding to the encoder interface, through which the encoder interface protrudes; the other end of the protective cover has a buckle that protrudes from the interface groove of the cover plate and engages to secure it.

6. The servo driver encoder interface recessed structure according to claim 1, characterized in that, The control panel is fixedly connected to the side sheet metal cover plate by screws.

7. The servo driver encoder interface recessed structure according to claim 1, characterized in that, The cover plate is secured to the encoder interface via a protective cover, and the side of the cover plate is connected and fixed to the side sheet metal cover plate by countersunk screws.

8. The servo driver encoder interface recessed structure according to claim 1 or 7, characterized in that, The cover plate is provided with a slot at the connection between the cover plate and the side sheet metal cover plate. During installation, the cover plate is temporarily locked onto the side sheet metal cover plate through the slot for temporary fixation.

Citation Information

Patent Citations

  • An intelligent control encoder interface and AC servo driver

    CN222720761U