A servo motor

Abstract

The application discloses a servo motor, which is provided with a containing cavity through a cover, a wiring box mounting area is arranged on the cavity wall of the containing cavity, a first through hole is arranged on the wiring box mounting area, a wire passing channel extending from the opening edge of the containing cavity to the first through hole is arranged on the opening edge of the containing cavity, so that the assembly sequence of the servo motor is changed, the assembly is simple and convenient, and the assembly time is shortened; the electrical connection between the lead-out cable and the servo motor control panel is performed outside the containing cavity, the electrical connection between the lead-out cable and the servo motor control panel can be completed in a comfortable posture, the operation difficulty and skill requirement are greatly reduced, and the reliability of the connection quality is improved. After the electrical connection between the lead-out cable and the servo motor control panel is completed, the preset position on the length of the lead-out cable only needs to pass through the wire passing channel, so that the whole lead-out cable enters the first through hole, the operation is simple and convenient, and the operation difficulty is greatly reduced.

Description

Technical Field

[0001] This utility model generally relates to the field of servo motor technology, and in particular to a servo motor. Background Technology

[0002] In the existing servo motor technology field, the servo motor structure mainly includes key components such as the servo motor body, cover, servo motor control board, and lead cables. Among them, the lead cables, as an important component for realizing electrical connections, are connected to the servo motor control board at one end and extend to the outside of the servo motor at the other end for connecting to external cables, so as to realize the electrical signal transmission and power supply between the servo motor and external circuits or devices.

[0003] However, in practical applications and manufacturing processes, it was found that the connection between the lead-out cable and the servo motor control board was cumbersome and inefficient. Utility Model Content

[0004] This utility model provides a servo motor, including: a servo motor body, a cover, a servo motor control board, and lead cables.

[0005] The cover has a cavity for housing a servo motor control board. The cavity wall has a junction box mounting area. A first through hole for cable to pass through is provided in the junction box mounting area. The open edge of the cavity has a cable passage extending from it to the first through hole. One end of the lead-out cable is connected to the servo motor control board, and the middle position of both ends of the lead-out cable enters the first via through the cable passage.

[0006] As an alternative implementation, a junction box is also included. A connector is provided at the middle position of both ends of the lead cable, the junction box is installed in the junction box mounting area, and the connector is plugged into the junction box.

[0007] As an implementation method, the connector is provided with an insertion protrusion, the junction box is provided with an insertion slot and a second through hole for the lead-out cable to pass through, the insertion slot is connected to the second through hole, and the insertion protrusion is inserted into the insertion slot.

[0008] As an alternative implementation, a second sealing ring is sandwiched between the insert protrusion and the insert slot.

[0009] As an alternative implementation, a first sealing gasket is also included, which is sandwiched between the junction box mounting area and the junction box, and the first sealing gasket has a third through hole and a filling protrusion adapted to the wire passage.

[0010] As one possible implementation, the junction box is provided with a sealing element mounting groove, and the first sealing gasket is disposed in the sealing element mounting groove. The bottom of the sealing element mounting groove is provided with the second through hole.

[0011] As one possible implementation, the junction box mounting area includes a first connecting segment, a second connecting segment, a third connecting segment and a fourth connecting segment connected end to end around the first through hole, and the first connecting segment is provided with the wire passage. The first sealing gasket includes a fifth connecting segment, a sixth connecting segment, a seventh connecting segment, and an eighth connecting segment connected end to end around the third through hole. The fifth connecting segment is provided with the filling protrusion, and the width of the fifth connecting segment is greater than the width of the first connecting segment.

[0012] As an implementation method, the width of the fifth connecting segment is greater than the width of the seventh connecting segment.

[0013] As an implementation, the cable passage has a second directional dimension L2, the maximum cross-sectional dimension of the lead cable is d, d < L2 ≤ 1.5d, the first direction is the extension direction of the cable passage, and the second direction is perpendicular to the first direction.

[0014] As an implementation method, the wire passage has a first directional dimension L1, where L1 ≤ 3 mm.

[0015] The above-described design features a housing cavity within the cover, with a junction box mounting area on the cavity wall. A first through-hole for the lead-out cable to pass through is provided in the junction box mounting area. A cable-passing channel extending from the open edge of the housing cavity towards the first through-hole is provided, thereby altering the assembly sequence of the servo motor, simplifying and facilitating assembly, and reducing assembly time. The electrical connection between the lead-out cable and the servo motor control board is performed outside the housing cavity, allowing for a comfortable connection and significantly reducing operational difficulty and skill requirements, while improving connection reliability. After the electrical connection is established, the lead-out cable only needs to pass through the cable-passing channel to reach the first through-hole at the predetermined position along its length. This simple and convenient operation greatly reduces operational difficulty and avoids the need to pull the other end of the lead-out cable through the first through-hole until the predetermined position along its length is within the first through-hole. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of the machine head structure provided for an embodiment of this utility model; Figure 2 A schematic diagram of the nose explosion provided for an embodiment of this utility model. Figure 1 ; Figure 3 A schematic diagram of the nose explosion provided for an embodiment of this utility model. Figure 2 ; Figure 4 A schematic diagram of the nose explosion provided for an embodiment of this utility model. Figure 3 ; Figure 5 A schematic diagram of the junction box provided in an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the first sealing gasket provided in an embodiment of the present utility model; Servo motor body 10, cover 20, accommodating cavity 201, first through hole 202, wire passage 203, junction box mounting area 21, first connecting section 211, third connecting section 212; Junction box 30, sealing mounting groove 31, second through hole 32, terminal block 33; Lead cable 40, thermal pad 50, servo motor control board 60, connector 70, insertion protrusion 71; First sealing gasket 81, fifth connecting section 811, filling protrusion 8111, seventh connecting section 812, third through hole 813, second sealing ring 82. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "frame" and "layout" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "frame" or "layout" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the existing servo motor technology field, the servo motor structure mainly includes key components such as the servo motor body 10, the cover 20, the servo motor control board 60, and the lead cable 40. Among them, the lead cable 40, as an important component for realizing electrical connection, is connected to the servo motor control board 60 at one end and extends to the outside of the servo motor at the other end for connecting external cables, so as to realize the electrical signal transmission and power supply between the servo motor and external circuits or devices.

[0021] However, in actual application and manufacturing processes, it was found that the connection operation between the lead cable 40 and the servo motor control board 60 is cumbersome and inefficient.

[0022] Based on this, such as Figures 1-6 As shown, this application proposes a servo motor, including a servo motor body 10, a cover 20, a lead cable 40, and a servo motor control board 60.

[0023] like Figure 4 As shown, the cover 20 has a cavity 201 for housing the servo motor control board 60. A junction box mounting area 21 is provided on the cavity wall of the cavity 201. A first through hole 202 for the lead-out cable 40 to pass through is provided in the junction box mounting area 21. A cable passage 203 extending from the open edge of the cavity 201 to the first through hole 202 is provided. One end of the lead-out cable 40 is connected to the servo motor control board 60, and the middle position of both ends of the lead-out cable 40 passes through the cable passage 203 and enters the first through hole 202.

[0024] like Figure 2As shown, the cover 20 can be located along the axial direction of the output shaft of the servo motor body 10. The cover 20 can be disposed at the rear end of the servo motor body 10, for example, the cover 20 is connected to the rear end of the servo motor body 10 by fasteners. The cross-sectional shape of the cover 20 matches the cross-sectional shape of the servo motor body 10, and the cross-sections of the cover 20 and the servo motor body 10 are perpendicular to the axis of the output shaft.

[0025] like Figure 4 As shown, the cavity wall of the accommodating cavity 201 is provided with a junction box mounting area 21. For example, the cavity wall of the accommodating cavity 201 protrudes to form a rectangular junction box mounting area 21. A first through hole 202 is provided in the junction box mounting area 21, and the first through hole 202 penetrates the cavity wall of the accommodating cavity 201. The junction box mounting area 21 includes a first connecting segment 211, a second connecting segment, a third connecting segment 212, and a fourth connecting segment connected end to end around the first through hole 202. The first connecting segment 211, the second connecting segment, the third connecting segment 212, and the fourth connecting segment are in a straight line. A wire passage 203 is provided on the first connecting segment 211. The wire passage 203 can extend in a straight line or in a curved line.

[0026] The servo motor also includes a junction box 30. A connector 70 is located at the midpoint of both ends of the lead cable 40. The junction box 30 is installed in the junction box mounting area 21, and the connector 70 is plugged into the junction box 30. The junction box 30 has a second through hole 32 for the lead cable 40 to pass through, and the first through hole 202 corresponds to the second through hole 32.

[0027] like Figure 4 As shown, there may be, but is not limited to, two lead cables 40. A connector 70 is provided at the midpoint between both ends of the lead cables 40, and the connector 70 is fixedly connected to the lead cables 40. The connector 70 has an insertion protrusion 71, and the junction box 30 has an insertion slot 33, which communicates with the second through hole 32. The insertion protrusion 71 is inserted into the insertion slot 33. This design resists vibration and accidental pulling, ensuring a durable and stable electrical connection between the lead cables 40 and the servo motor control board 60. Simultaneously, the insertion method between the insertion protrusion 71 and the insertion slot reduces the skill requirements of the operator and the assembly difficulty, helping to shorten assembly time and improve production efficiency.

[0028] In addition, such as Figure 4 As shown, a second sealing ring 82 is sandwiched between the insert protrusion 71 and the insert slot 33. The second sealing ring 82 can prevent liquid from the external environment from entering the receiving cavity 201 through the gap between the insert protrusion 71 and the insert slot 33, thus avoiding any impact on the servo motor control board 60.

[0029] When assembling a servo motor, such as Figures 1-4As shown, S1, one end of the lead cable 40 passes through the second sealing ring 82, the slot of the junction box 30, the second through hole 32, and the first sealing gasket 81 with the third through hole 813, and is electrically connected to the servo motor control board 60; S2, then the heat-conducting pad 50 is connected to the servo motor control board 60, and the heat-conducting pad 50 and the servo motor control board 60 assembly body are installed in the receiving cavity 201 of the cover 20; S3, the middle position of both ends of the lead cable 40 enters the first through hole 202 through the wire channel 203; S4, the junction box 30 is installed in the junction box mounting area 21, and the first sealing gasket 81 is sandwiched between the junction box 30 and the junction box mounting area 21; S5, the cover 20 is installed at the rear end of the servo motor body 10.

[0030] It should be noted that the electrical connection between the lead cable 40 and the servo motor control board 60 is made outside the accommodating cavity 201. This connection can be completed comfortably, significantly reducing operational difficulty and skill requirements while improving connection reliability. After the electrical connection between the lead cable 40 and the servo motor control board 60 is completed, the preset position along the length of the lead cable 40 only needs to pass through the cable passage 203 to allow the entire lead cable 40 to enter the first through hole 202. This simple and convenient operation greatly reduces operational difficulty and avoids the need to pull the other end of the lead cable 40 through the first through hole 202 until the preset position along the length of the lead cable 40 is located in the first through hole 202.

[0031] In summary, this application provides a receiving cavity 201 on the cover 20, and a junction box mounting area 21 on the cavity wall of the receiving cavity 201. A first through hole 202 for the lead cable 40 to pass through is provided on the junction box mounting area 21. A wire passage 203 extending from the open edge of the receiving cavity 201 to the first through hole 202 is provided, thereby changing the assembly sequence of the servo motor, making the assembly simple and convenient, and helping to shorten the assembly time. The electrical connection between the lead cable 40 and the servo motor control board 60 is made on the outside of the receiving cavity 201. The electrical connection between the lead cable 40 and the servo motor control board 60 can be completed in a comfortable posture, which greatly reduces the difficulty of operation and skill requirements, while improving the reliability of the connection quality. After the lead cable 40 is electrically connected to the servo motor control board 60, the preset position of the lead cable 40 only needs to pass through the cable passage 203 to allow the entire lead cable 40 to enter the first through hole 202. The operation is simple and convenient, greatly reducing the difficulty of operation and avoiding the other end of the lead cable 40 from passing through the first through hole 202 and then being pulled until the preset position of the lead cable 40 is located in the first through hole 202.

[0032] Optionally, the junction box 30 is provided with a sealing element mounting groove 31, and a first sealing gasket 81 is disposed in the sealing element mounting groove 31, wherein the bottom of the sealing element mounting groove 31 is provided with a second through hole 32.

[0033] like Figure 5 As shown, the sealing element mounting groove 31 can precisely fix and limit the first sealing gasket 81, preventing it from shifting or tilting during installation. When assembling the first sealing gasket 81, simply place the first sealing gasket 81 into the sealing element mounting groove 31; no manual alignment is required, reducing the skill requirements for operators.

[0034] Optionally, the first sealing gasket 81 is provided with a filling protrusion 8111 that is adapted to the wire passage 203.

[0035] like Figure 6 As shown, the shape of the first sealing gasket 81 matches the shape of the junction box mounting area 21. The first sealing gasket 81 is rectangular and includes a fifth connecting segment 811, a sixth connecting segment, a seventh connecting segment 812, and an eighth connecting segment connected end to end around the third through hole 813. The fifth connecting segment 811, the sixth connecting segment, the seventh connecting segment 812, and the eighth connecting segment are straight, and the fifth connecting segment 811 is provided with a filling protrusion 8111.

[0036] When the junction box 30 is assembled in the junction box mounting area 21, the filling protrusion 8111 of the first sealing gasket 81 is inserted into the wire passage 203. The filling protrusion 8111 completely fills the entire space of the wire passage, and the compressed filling protrusion 8111 fits tightly against every side of the wire passage 203, thereby blocking the possibility of liquid from the external environment entering the receiving cavity 201 along this path, and avoiding any impact on the servo motor control board 60.

[0037] The fifth connecting segment 811 has a width dimension L3 that is larger than the seventh connecting segment 812's width dimension L4. This unique shape ensures that the first sealing gasket 81 can only be installed in one correct orientation, preventing assembly workers from installing the gasket backwards or incorrectly.

[0038] The fifth connecting segment 811 has a width L3 that is greater than the width L1 of the first connecting segment 211. The wider fifth connecting segment 811 can provide more uniform contact pressure and better sealing reliability.

[0039] The cable passage 203 has a second directional dimension L2, the maximum cross-sectional dimension of the lead cable 40 is d, d < L2 ≤ 1.5d, the first direction is the extension direction of the cable passage 203, and the second direction is perpendicular to the first direction.

[0040] like Figure 4As shown, the cable guide channel 203 extends in a straight line. Its first direction is parallel to the extension direction of the output shaft axis of the servo motor body 10, i.e., the left-right direction. The second direction is the front-back direction. The cable guide channel 203 has a first-direction dimension L1, where L1 ≤ 3mm. The cable guide channel 203 has a second-direction dimension L2, where d < L2 ≤ 1.5d.

[0041] d < L2 ensures that the lead cable 40 can be smoothly and easily inserted into the cable passage 203. L2 ≤ 1.5d ensures that only one lead cable 40 can pass through at a time. This minimizes the size of the cable passage 203 and prevents it from becoming too large, which helps to ensure the sealing effect of the filling protrusion 8111 sealing the cable passage 203.

[0042] Preferably, L1=3mm, which can minimize the size of the wire passage 203 and avoid the wire passage 203 being too large, thus helping to ensure the sealing effect of the filling protrusion 8111 sealing the wire passage 203.

[0043] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A servo motor, characterized in that, include: Servo motor body (10); The cover (20) is provided with a cavity (201) for mounting a servo motor control board (60). A junction box mounting area (21) is provided on the cavity wall of the cavity (201). A first through hole (202) for the cable (40) to pass through is provided on the junction box mounting area (21). A cable passage (203) extending from the open edge of the cavity (201) to the first through hole (202) is provided. Servo motor control board (60) and lead cable (40), one end of the lead cable (40) is connected to the servo motor control board (60), and the middle position of both ends of the lead cable (40) enters the first via (202) through the wire passage (203).

2. The servo motor according to claim 1, characterized in that, It also includes a junction box (30). The lead cable (40) has a connector (70) at the middle position of both ends. The junction box (30) is installed in the junction box installation area (21). The connector (70) is plugged into the junction box (30).

3. The servomotor of claim 2, wherein The connector (70) is provided with an insert protrusion (71). The junction box (30) is provided with a slot (33) and a second through hole (32) for the cable (40) to pass through. The slot (33) is connected to the second through hole (32), and the insertion protrusion (71) is inserted into the slot (33).

4. The servomotor of claim 3, wherein A second sealing ring (82) is sandwiched between the insert protrusion (71) and the insert slot (33).

5. The servomotor of claim 3, wherein It also includes a first sealing gasket (81), which is sandwiched between the junction box mounting area (21) and the junction box (30). The first sealing gasket (81) is provided with a third through hole (813) and a filling protrusion (8111) adapted to the wire passage (203).

6. The servomotor of claim 5, wherein The junction box (30) is provided with a sealing element mounting groove (31), and the first sealing gasket (81) is disposed in the sealing element mounting groove (31). The bottom of the sealing mounting groove (31) is provided with the second through hole (32).

7. The servomotor of claim 5, wherein The junction box installation area (21) includes a first connecting segment (211), a second connecting segment, a third connecting segment (212) and a fourth connecting segment connected end to end around the first through hole (202), and the first connecting segment (211) is provided with the wire passage (203). The first sealing gasket (81) includes a fifth connecting segment (811), a sixth connecting segment, a seventh connecting segment (812) and an eighth connecting segment connected end to end around the third through hole (813). The fifth connecting segment (811) is provided with the filling protrusion (8111), and the width of the fifth connecting segment (811) is greater than the width of the first connecting segment (211).

8. The servomotor of claim 7, wherein The width of the fifth connecting segment (811) is greater than the width of the seventh connecting segment (812).

9. The servomotor according to any one of claims 1 to 8, characterized by The cable passage (203) has a second directional dimension L2, the maximum cross-sectional dimension of the lead cable (40) is d, d < L2 ≤ 1.5d, the first direction is the extension direction of the cable passage (203), and the second direction is perpendicular to the first direction.

10. The servomotor of claim 9, wherein, The wire passage (203) has a first directional dimension L1, where L1 ≤ 3 mm.

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