Encoder wire end connector for servo motor

Abstract

The encoder wire end connector comprises a shell, a terminal seat and a plurality of signal terminals, the shell comprises a shell main body and a wiring part connected with the shell main body, an accommodating cavity with a forward opening is formed in the shell main body, clamping grooves are respectively formed in two opposite side walls of the accommodating cavity, and the signal terminals are arranged in the clamping grooves. A mounting hole communicated with the accommodating cavity and the outside is formed in the wiring part; the terminal seat is detachably inserted into the accommodating cavity of the shell, two side walls of the terminal seat are respectively and integrally connected with an elastic buckle, when the terminal seat is inserted into the accommodating cavity, the elastic buckles are inwards extruded and deformed by the side walls of the accommodating cavity, and when the terminal seat is inserted in place, the elastic buckles are elastically released and clamped in the clamping grooves; the plurality of signal terminals are arranged on the terminal base, the front ends of the signal terminals are exposed outwards, and the rear ends of the signal terminals are exposed in the containing cavity so as to be connected with the signal lines. According to the utility model, detachable assembly of the terminal seat and the housing can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an encoder line end connector for a servo motor. Background Art

[0002] At present, the encoder line end connector for servo motors generally includes a housing, a terminal block and multiple signal terminals, wherein the multiple signal terminals are inserted into the terminal block, and the terminal block is assembled in the housing. However, there is a problem with the current assembly of the terminal block and the housing, that is, the terminal block and the housing cannot be disassembled after assembly, which means that if a line sequence error is found after assembly, it cannot be disassembled for modification. In addition, the existing wire clamp clamped on the outside of the cable is a separate structure from the housing, which requires manual assembly, low efficiency and high cost. Utility Model Content

[0003] The purpose of the utility model is to provide an encoder line end connector for a servo motor, which can solve at least one technical problem mentioned in the background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an encoder line end connector for a servo motor, comprising: a shell, a terminal seat and a plurality of signal terminals, the shell comprising a shell body and a wiring portion connected to the shell body, the shell body is formed with a forward-opening accommodating cavity, the opposite side walls of the accommodating cavity are respectively formed with card grooves, and the wiring portion is formed with a mounting hole connecting the accommodating cavity and the outside world; the terminal seat is detachably inserted into the accommodating cavity of the shell, and the two side walls of the terminal seat are respectively integrally connected with elastic clips, when the terminal seat is inserted into the accommodating cavity, the elastic clip is squeezed inwardly and deformed by the side walls of the accommodating cavity, and when the terminal seat is inserted into the accommodating cavity, the elastic clip is elastically released and clamped in the card groove; the plurality of signal terminals are arranged on the terminal seat, the front end of the signal terminal is exposed outward, and the rear end of the signal terminal is exposed in the accommodating cavity to be connected with the signal line.

[0005] Optionally, the rear end of the elastic clip is connected to the side wall of the terminal seat, and the front end of the elastic clip is a free end.

[0006] Optionally, the elastic clip includes a connecting part and a clip part, the rear end of the connecting part is connected to the side wall of the terminal seat, the rear end of the clip part is connected to the front end of the connecting part, and the clip part gradually becomes thicker outward from back to front.

[0007] Optionally, a groove penetrating forward is formed on the side wall of the terminal seat, and the rear end of the elastic clip is connected to the rear wall of the groove, and the groove provides space for the elastic clip to deform inwardly.

[0008] Optionally, the two side walls of the terminal seat extend backwards from the two side plates, and a wiring space is formed between the two side plates; the outer side surface of the elastic buckle extends outward as a whole beyond the side wall of the terminal seat and extends to the side plate.

[0009] Optionally, a notch extending forward is formed on the outer side of the front end of the elastic buckle, and when the elastic buckle is locked in the locking slot, the notch allows an operating member to extend into to elastically deform the elastic buckle inward.

[0010] Optionally, a side wall of the accommodating cavity is formed with a notch communicating with the card slot at the front end of the card slot, and the notch corresponds to the notch.

[0011] Optionally, the terminal seat can be adapted to be inserted into the accommodating cavity of the shell in the forward and reverse directions. When the terminal seat is inserted into the accommodating cavity in the forward and reverse directions, the elastic buckle is adapted to be clamped in the clamping groove.

[0012] Optionally, the four corners of the rear end of the accommodating cavity are respectively provided with L-shaped limit blocks protruding inwardly, and the front end of the L-shaped limit block is formed with an L-shaped guide slope, and the guide slope is connected to the L-shaped inner surface of the L-shaped limit block; when the terminal seat is inserted into the accommodating cavity, the upper and lower ends of the two side panels are respectively guided by the corresponding guide slopes and inserted into the inner side of the L-shaped limit block, and inserted backward into place along the L-shaped inner surface of the L-shaped limit block.

[0013] Optionally, an outer wall of the wiring part is formed with an external thread, and a plurality of clamping arms distributed circumferentially are formed at the end of the wiring part; a wire sealing ring is sleeved on the outer side of the cable, and the wire sealing ring is clamped by the plurality of clamping arms, and a fastening nut is sleeved on the outer side of the wiring part, and the internal thread of the fastening nut is connected to the external thread of the wiring part.

[0014] In the present invention, the two opposite side walls of the housing cavity of the housing are respectively formed with card slots, and the two side walls of the terminal seat are respectively connected with elastic card buckles in one piece, and the cooperation of the elastic card buckle and the card slot facilitates the terminal seat to be stably assembled in the housing cavity of the housing. In addition, since the terminal seat is restricted by the cooperation of the elastic card buckle and the card slot in the present invention, the elastic card buckle can be manually operated to disengage the elastic card buckle from the card slot, so that the terminal seat can be taken out of the housing cavity of the housing, realizing the detachable assembly of the terminal seat and the housing, and when the terminal seat needs to be taken out of the housing cavity due to a line sequence error, the terminal seat can be easily taken out for processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the encoder line end connector after wiring in an embodiment of the utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the encoder line end connector shown.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the encoder line end connector of the embodiment of the utility model when it is not connected.

[0018] Figure 4 yes Figure 3 The schematic diagram of the cross-sectional structure of the encoder line end connector is shown.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the shell of the embodiment of the utility model.

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the terminal seat of the embodiment of the utility model.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of the terminal seat and the signal terminal of the embodiment of the utility model.

[0022] Figure 8 It is a three-dimensional structural schematic diagram of the signal terminal of the embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] See also Figures 1 to 8The embodiment of the utility model discloses an encoder line end connector for a servo motor, comprising a housing 1, a terminal block 2 and a plurality of signal terminals 3. The housing 1 comprises a housing body 10 and a wiring portion 11 connected to the housing body 10, a housing cavity 12 opening forward is formed on the housing body 10, and a card slot 13 is formed on the opposite side walls of the housing cavity 12, and a mounting hole 14 connecting the housing cavity 12 and the outside is formed on the wiring portion 11. The terminal block 2 is detachably inserted into the housing cavity 12 of the housing 1, and the two side walls of the terminal block 2 are respectively connected with elastic buckles 21 in one piece. When the terminal block 2 is inserted into the housing cavity 12, the elastic buckle 21 is squeezed inwardly by the side wall of the housing cavity 12 and deformed. When the terminal block 2 is inserted into place, the elastic buckle 21 is elastically released and clamped in the card slot 13. A plurality of signal terminals 3 are arranged on the terminal block 2, the front end of the signal terminal 3 is exposed outward, and the rear end of the signal terminal 3 is exposed in the housing cavity 12 to connect with the signal line.

[0026] In a specific example, the number of the signal terminals 3 is seven and they are arranged in two upper and lower rows.

[0027] In a specific example, the wiring portion 11 is connected to the bottom wall of the accommodating cavity 12 , but is not limited thereto.

[0028] In the present invention, the two opposite side walls of the housing cavity 12 of the housing 1 are respectively formed with a card slot 13, and the two side walls of the terminal block 2 are respectively connected with an elastic card buckle 21 in one piece, and the cooperation of the elastic card buckle 21 and the card slot 13 facilitates the terminal block 2 to be firmly assembled in the housing cavity 12 of the housing 1. In addition, since the terminal block 2 is limited by the cooperation of the elastic card buckle 21 and the card slot 13 in the present invention, the elastic card buckle 21 can be manually operated to make the elastic card buckle 21 detach from the card slot 13, so that the terminal block 2 can be taken out from the housing cavity 12 of the housing 1, so as to realize the detachable assembly of the terminal block 2 and the housing 1, and when the terminal block 2 needs to be taken out from the housing cavity 12 due to a line sequence error or the like, the terminal block 2 can be easily taken out for processing.

[0029] In some embodiments, the housing body 10 can be fixedly connected to the motor housing (not shown) by screws 9 .

[0030] In some embodiments, a sealing ring groove 15 surrounding the accommodating cavity 12 is formed on the front face of the housing body 10, and an elastic sealing ring 4 is provided at the sealing ring groove 15. When the housing body 10 is fixedly connected to the motor housing, the elastic sealing ring 4 fits tightly on the motor housing, thereby playing a role of sealing and waterproofing, preventing external liquid from entering the connector and the motor from between the housing body 10 and the motor housing, which is conducive to improving product reliability.

[0031] Specifically, the elastic sealing ring 4 can be made of a highly elastic material that meets the waterproof grade IP67 to ensure a sealing effect.

[0032] In some embodiments, the rear end of the elastic buckle 21 is connected to the side wall of the terminal base 2, and the front end of the elastic buckle 21 is a free end.

[0033] Specifically, the elastic buckle 21 includes a connecting portion 211 and a buckle portion 212, the rear end of the connecting portion 211 is connected to the side wall of the terminal base 2, the rear end of the buckle portion 212 is connected to the front end of the connecting portion 211, and the buckle portion 212 gradually becomes thicker outward from the back to the front. This arrangement is conducive to achieving a stable buckle fit.

[0034] Specifically, the side wall of the terminal base 2 is formed with a groove 22 extending forward, and the rear end of the elastic buckle 21 is connected to the rear wall of the groove 22. The groove 22 provides space for the elastic buckle 21 to deform inwardly. Of course, the groove 22 is not necessarily a required structure.

[0035] More specifically, the two side walls of the terminal block 2 extend backwards beyond the two side plates 23, and a wiring space 24 is formed between the two side plates 23; the outer side surface of the elastic buckle 21 extends outwards beyond the side wall of the terminal block 2 as a whole and extends to the side plate 23. This arrangement facilitates the plug-in assembly of the terminal block 2 and is also conducive to improving the reliability of the elastic buckle 21.

[0036] Specifically, a notch 213 extending forward is formed on the outer side of the front end of the elastic buckle 21. When the elastic buckle 21 is locked in the slot 13, the notch 213 allows the operating member to extend into the notch to elastically deform the elastic buckle 21 inward. The notch 213 is provided to facilitate the inward deformation of the elastic buckle 21 locked in the slot 13, so that the terminal block 2 can be taken out of the accommodating cavity 12, thereby realizing the detachability of the terminal block 2.

[0037] More specifically, the side wall of the accommodating cavity 12 is formed with a notch 16 at the front end of the card slot 13, which is connected to the card slot 13, and the notch 16 corresponds to the notch 213. The notch 16 corresponding to the notch 213 makes it easier to operate the elastic buckle 21 to elastically deform inward to remove the terminal seat 2.

[0038] In some embodiments, the terminal block 2 can be inserted into the housing 12 of the housing 1 in both forward and reverse directions. When the terminal block 2 is inserted into the housing 12 in both forward and reverse directions, the elastic buckle 21 is adapted to be clamped in the clamping groove 13. This arrangement facilitates the rapid assembly of the terminal block 2 and facilitates the adjustment of the outlet direction.

[0039] Specifically, the four corners of the rear end of the accommodating cavity 12 are respectively provided with L-shaped limit blocks 17 protruding inward, and the front end of the L-shaped limit block 17 is formed with an L-shaped guide slope 171, and the guide slope 171 is connected to the L-shaped inner surface of the L-shaped limit block 17; when the terminal block 2 is inserted into the accommodating cavity 12, the upper and lower ends of the two side plates 23 are respectively guided by the corresponding guide slopes 171 to be inserted into the inner side of the L-shaped limit block 17, and are inserted backward into place along the L-shaped inner surface of the L-shaped limit block 17. Through this arrangement, after the terminal block 2 is inserted into the accommodating cavity 12, the terminal block 2 can be more stably assembled in the accommodating cavity 12 by the limitation of the four L-shaped limit blocks 17 and the cooperation of the elastic buckles 21 and the card slots 13 on both sides. In addition, by setting up four L-shaped limit blocks 17, a gap is formed between most areas of the two side walls, top wall and bottom wall of the terminal seat 2 and the inner wall of the accommodating cavity 12, which is convenient for assembling and removing the terminal seat 2. At the same time, by setting up the gap between the side wall of the terminal seat 2 and the inner wall of the accommodating cavity 12, the elastic buckle 21 is easy to operate.

[0040] In some embodiments, the outer wall of the wiring part 11 is formed with an external thread 112, and the end of the wiring part 11 is formed with a plurality of clamping arms 113 distributed at intervals in the circumferential direction; a wire sealing ring 7 is sleeved on the outer side of the cable 6, and the wire sealing ring 7 is clamped inside by a plurality of clamping arms 113, and a fastening nut 8 is sleeved on the outer side of the wiring part 11, and the internal thread of the fastening nut 8 is connected to the external thread 112 of the wiring part 11. Since the wiring part 11 with the external thread 112 and the plurality of clamping arms 113 is formed integrally on the housing 1, there is no need to set a special wire clamp, which saves the manufacturing cost for assembling the cable 6 and the wire sealing ring 7.

[0041] Specifically, the wire sealing ring 7 can be made of a high-elastic material that meets the waterproof grade IP67 to ensure the sealing effect.

[0042] In some embodiments, the signal terminal 3 includes a main body 31 in the shape of a rectangular frame, and the main body 31 includes a side plate 311, a top plate 312 and a bottom plate 313. Two elastic clamping arms 32 arranged opposite to each other extend forward from the middle of the top plate 312 and the bottom plate 313. The free ends of the two elastic clamping arms 32 arch inwardly toward each other to form a pair of clamping portions 321. A pair of connecting arms 33 extend forward from the two side plates 311, and the front ends of the two connecting arms 33 are connected to a plug-in port 34 in the shape of a rectangular frame. By providing a plug-in port 34 in the shape of a rectangular frame at the front end of the signal terminal 3, blind insertion of the docking pin can be achieved, and by providing the two elastic clamping arms 32 and the two inwardly arched clamping portions 321, the connection between the docking pin and the signal terminal 3 can be ensured to be stable.

[0043] Specifically, the rear end of the bottom plate 313 or the top plate 312 extends backward to form a support portion 35 for supporting the signal line, and a pair of core wire rivet pieces 36 and a pair of outer sheath rivet pieces 37 are provided on both sides of the support portion 35, wherein the outer sheath rivet pieces 37 are located at the rear side of the core wire rivet pieces 36. When assembling the signal line, the core wire of the signal line is placed at the support portion 35 position between the pair of core wire rivet pieces 36, and the outer sheath of the signal line is placed at the support portion 35 position between the pair of outer sheath rivet pieces 37, and then the core wire rivet pieces 36 and the outer sheath rivet pieces 37 are crimped to achieve stable assembly of the signal line.

[0044] Specifically, a plurality of terminal slots 26 penetrating from front to back are formed on the terminal seat 2 , and the plurality of signal terminals 3 are respectively inserted into the plurality of terminal slots 26 .

[0045] In order to prevent short circuit caused by flying wires, a fence 27 is provided on the rear end surface of the terminal block 2 at least between the terminal grooves 26 to protrude backwards.

[0046] The above disclosure is only a preferred example of the utility model, and its role is to facilitate the understanding and implementation of the technical personnel in the field. Of course, it cannot be used to limit the scope of the rights of the utility model. Therefore, equivalent changes made according to the scope of the patent application of the utility model still fall within the scope covered by the utility model. It should be explained that in the utility model, the directional words such as "front", "back", "upper", and "lower" are only defined for the convenience of description. "Front" and "back", "upper" and "lower" are all relative.

Claims

1. An encoder line end connector for a servo motor, characterized in that: include: Housing, terminal block and multiple signal terminals, The housing comprises a housing body and a wiring part connected to the housing body, the housing body is formed with a forwardly open accommodation cavity, opposite side walls of the accommodation cavity are respectively formed with card slots, and the wiring part is formed with a mounting hole connecting the accommodation cavity and the outside; The terminal seat is detachably inserted into the accommodating cavity of the housing, and the two side walls of the terminal seat are respectively connected with elastic buckles in one piece. When the terminal seat is inserted into the accommodating cavity, the elastic buckle is squeezed inwardly by the side wall of the accommodating cavity and deformed. When the terminal seat is inserted into place, the elastic buckle is elastically released and clamped in the clamping groove; A plurality of signal terminals are arranged on the terminal seat, the front ends of the signal terminals are exposed outward, and the rear ends of the signal terminals are exposed in the accommodating cavity to be connected with the signal wires.

2. The encoder line end connector according to claim 1, characterized in that: The rear end of the elastic buckle is connected to the side wall of the terminal seat, and the front end of the elastic buckle is a free end.

3. The encoder line end connector according to claim 2, characterized in that: The elastic buckle includes a connecting portion and a buckle portion, the rear end of the connecting portion is connected to the side wall of the terminal seat, the rear end of the buckle portion is connected to the front end of the connecting portion, and the buckle portion gradually becomes thicker outward from back to front.

4. The encoder line end connector according to claim 2 or 3, characterized in that: A groove penetrating forward is formed on the side wall of the terminal seat, and the rear end of the elastic clip is connected to the rear wall of the groove, and the groove provides space for the elastic clip to deform inwardly.

5. The encoder line end connector according to claim 4, characterized in that: The two side walls of the terminal seat extend backwards from the two side plates, and a wiring space is formed between the two side plates; the outer side surface of the elastic buckle extends outward as a whole beyond the side wall of the terminal seat and extends to the side plate.

6. The encoder line end connector according to claim 2 or 3, characterized in that: A notch extending forward is formed on the outer side of the front end of the elastic buckle. When the elastic buckle is locked in the locking slot, the notch allows the operating member to extend into the notch to elastically deform the elastic buckle inward.

7. The encoder line end connector according to claim 6, characterized in that: A notch communicating with the card slot is formed on the side wall of the accommodating cavity at the front end of the card slot, and the notch corresponds to the notch.

8. The encoder line end connector according to claim 5, characterized in that: The terminal seat can be inserted into the housing cavity of the housing in the forward and reverse directions. When the terminal seat is inserted into the housing cavity in the forward and reverse directions, the elastic buckle is adapted to be clamped in the clamping groove.

9. The encoder line end connector according to claim 8, characterized in that: The four corners at the rear end of the accommodating cavity are respectively provided with L-shaped limit blocks protruding inwardly, and the front end of the L-shaped limit block is formed with an L-shaped guide slope, and the guide slope is connected to the L-shaped inner surface of the L-shaped limit block; when the terminal seat is inserted into the accommodating cavity, the upper and lower ends of the two side plates are respectively guided by the corresponding guide slopes and inserted into the inner side of the L-shaped limit block, and inserted backward into place along the L-shaped inner surface of the L-shaped limit block.

10. The encoder line end connector according to claim 1, characterized in that: An external thread is formed on the outer wall of the wiring part, and a plurality of clamping arms distributed circumferentially are formed at the end of the wiring part; a wire sealing ring is sleeved on the outer side of the cable, and the wire sealing ring is clamped inside by the plurality of clamping arms, and a fastening nut is sleeved on the outer side of the wiring part, and the internal thread of the fastening nut is connected to the external thread of the wiring part.

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