Connector and servo motor

Abstract

The utility model discloses a connector and a servo motor, belonging to the motor technology field, the servo motor comprises a housing and a connector, the connector is installed on the housing, the connector comprises a first connecting block and a second connecting block, and the first connecting block and the second connecting block are installed in a radial direction. The first connecting block connected with the power line is mounted on the mounting groove, the mounting space of the brake line is reserved, after the brake assembly is pressed in, the brake line is connected with the second terminal male head, the second connecting block is mounted, and the brake line is mounted simply and conveniently. The connector provided by the utility model avoids the problem of wire stacking caused by the overlong installed brake cable, optimizes the layout of the brake cable, and improves the working condition adaptability, the application environment and the working efficiency of the servo motor.

Description

[0001] This application claims priority to the invention patent filed on November 22, 2024, with application number CN202411680150.1 and patent title "Servo Motor". Technical Field

[0002] This utility model relates to the field of motor technology, and in particular to a connector and a servo motor. Background Technology

[0003] Servo motors are typically not directly connected to mechanical equipment. Instead, they are first electrically connected to the power and brake lines within the servo motor via connectors, and then the connectors are further connected to the mechanical equipment. During assembly, the power line components are installed first, the brake lines are connected to the connectors, and then the brake line components are pressed into the housing.

[0004] Existing connectors result in excessively long brake cables remaining inside the servo motor after installation. These long cables, piling up inside the housing, are prone to excessive bending and damage, reducing motor efficiency. Therefore, optimizing connector design to shorten the brake cable length is a problem that needs to be solved. Utility Model Content

[0005] The present invention aims to overcome the problem of excessively long brake cables during installation in the prior art, and provides a servo motor.

[0006] To achieve the above objectives, the present invention provides a connector that is mounted on the housing of a servo motor. The connector includes a first connecting block and a second connecting block, which are radially mounted.

[0007] In a preferred embodiment of the present invention, a first male terminal is installed on the first connecting block, and the first male terminal is connected to the power line.

[0008] In a preferred embodiment of this utility model, a second male terminal is installed on the second connecting block, and the second male terminal is connected to the brake cable.

[0009] In a preferred embodiment of the present invention, the connector further includes a snap-fit.

[0010] In a preferred embodiment of the present invention, a plurality of the latches are disposed on the outer edge of the connector.

[0011] In a preferred embodiment of the present invention, a plurality of the latches are disposed on the side wall of the connector.

[0012] In a preferred embodiment of this utility model, the back of the buckle is designed to allow material to be removed, forming a material removal opening.

[0013] In a preferred embodiment of the present invention, the connector further includes an opening formed on the sidewall edge of the connector.

[0014] This utility model also provides a servo motor, the servo motor including any of the connectors described above, the servo motor including a housing, the housing including a first boss and a mounting groove, the first boss being disposed on the housing, the mounting groove being formed at the center of the first boss, and the connector being mounted in the mounting groove by means of the snap fastener.

[0015] In a preferred embodiment of the present invention, the servo motor further includes a sealing structure formed by curing adhesive, the sealing structure being used to fix the first connecting block and the second connecting block in the mounting groove.

[0016] In a preferred embodiment of this utility model, the buckle is disposed on the outer edge of the connector, the inner wall of the mounting groove extends radially to form a stepped structure, the buckle abuts against the stepped structure, and the connector is embedded and installed in the stepped structure through the buckle.

[0017] In a preferred embodiment of this utility model, adhesive flows into the stepped structure through the end face of the connector, and after curing, forms the sealing structure, which encloses the end of the connector.

[0018] In a preferred embodiment of the present invention, the buckle is disposed on the side wall of the connector, and the inner wall of the mounting groove is recessed to form a groove, and the buckle is engaged in the groove.

[0019] In a preferred embodiment of the present invention, the connector further includes an opening formed on the sidewall edge of the connector.

[0020] In a preferred embodiment of this utility model, the adhesive flows into the housing through the opening from the end of the connector, and after curing, forms the sealing structure. The sealing structure covers the end and outer periphery of the connector, as well as the inner wall of the housing.

[0021] In a preferred embodiment of this utility model, the back of the buckle is designed to allow material to be removed, forming a material removal opening.

[0022] In a preferred embodiment of this utility model, the housing includes a first mounting area and a second mounting area, which are connected along the axial direction of the housing. A power line related component is installed in the first mounting area, and the power line related component is connected to a first terminal male connector via a power line. A brake line related component is installed in the second mounting area, and the brake line related component is connected to a second terminal male connector via a brake line.

[0023] In a preferred embodiment of the present invention, the servo motor further includes a female connector, which is inserted into the other end of the connector and fixedly connected to the housing. The female connector also includes a sealing ring, which is installed on the contact surface between the female connector and the first boss.

[0024] In a preferred embodiment of this utility model, the female connector further includes a housing, a rubber core, and a grounding terminal. The rubber core is disposed in the housing, and the grounding terminal is installed in the rubber core. The end of the grounding terminal is crimped with the power line. After the female connector is installed on the housing, the grounding terminal contacts the plane of the housing.

[0025] This utility model discloses a servo motor. By installing a first connecting block connected to the power line on the mounting slot and leaving space for the brake line, after pressing in the brake assembly, the brake line is connected to the second terminal male and the second connecting block is installed, thus achieving simple installation of the brake line. The connector in this utility model avoids the problems of wire stacking and damage caused by excessive bending within the installation space due to excessively long brake lines, optimizes the brake line layout, and improves the servo motor's adaptability to operating conditions, application environment, and working efficiency.

[0026] To make the above-mentioned features and advantages of the utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0027] Figure 1 An exploded view of the servo motor provided by this utility model.

[0028] Figure 2 This is a three-dimensional schematic diagram of the housing in the servo motor provided by this utility model.

[0029] Figure 3 This is a cross-sectional schematic diagram of the servo motor provided by this utility model.

[0030] Figure 4 This is a three-dimensional schematic diagram of the connector in the servo motor provided by this utility model.

[0031] Figure 5 This is a three-dimensional schematic diagram of the female connector in the servo motor provided by this utility model.

[0032] Figure 6 A perspective view of a servo motor in another embodiment of this utility model.

[0033] Figure 7 An exploded view of the servo motor in another embodiment of this utility model.

[0034] Figure 8 A perspective view of the connector in another embodiment of this utility model.

[0035] Figure 9 for Figure 8 A three-dimensional schematic diagram of the connector from another perspective.

[0036] Figure 10 A cross-sectional view of the servo motor in another embodiment provided by this utility model.

[0037] 1-Servo motor; 11-Housing; 111-First boss; 112-Mounting groove; 1121-Step structure; 1122-Groove; 113-Threaded blind hole; 114-First mounting area; 115-Second mounting area; 12-Female head; 121-Outer shell; 123-Core; 123-Hole; 124-Threaded through hole; 125-Sealing ring; 126-Grounding terminal; 13-Connector; 131-First connecting block; 1311-First body; 1312-First flange; 1313-First reserved hole; 1314-First terminal male head; 132-Second connecting block; 1321-Second body; 1322-Second flange; 1323-Second reserved hole; 1324-Second terminal male head; 133-Snap-on; 134-Material outlet; 135-Opening; 14-Sealing structure.

[0038] In the accompanying drawings, similar reference numerals refer to the same elements. Detailed Implementation

[0039] To make the objectives and technical solutions of the present utility model embodiments clearer, the following will be described in conjunction with the accompanying drawings of the present utility model embodiments. Figure 1 -Appendix Figure 10 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0040] like Figure 1 As shown, the servo motor 1 includes a housing 11, a female connector 12, a connector 13, and a sealing structure 14. The female connector 12 is mounted on the housing 11, and the connector 13 is mounted inside the female connector 12. The connector 13 and the housing 11 are fixedly connected through the sealing structure 14.

[0041] Please combine Figure 1 , Figure 2 and Figure 3The housing 11 is integrally formed and includes a first boss 111, a mounting groove 112, and a threaded blind hole 113. The first boss 111 is disposed on the housing 11 and is formed by a portion protruding upward from the housing 11, integrally formed with it. The mounting groove 112 is formed at the center of the first boss 111, and the connector 13 is installed in the mounting groove 112. The sealing structure 14 fixes the connector 13 in the mounting groove 112, and the female head 12 is fixedly installed on the first boss 111. The mounting groove 112 is used to avoid power lines and brake lines and provides installation space for the connector 13. The threaded blind hole 113 is formed at any corner of the first boss 111, and the female head 12 is fixedly installed on the housing 11 with screws. By designing the first boss 111, the traditional flange structure is eliminated, effectively reducing the height and volume of the servo motor, not only reducing costs but also providing more application scenarios for the servo motor.

[0042] The inner cavity of the housing 11 also includes a first mounting area 114 and a second mounting area 115, which are connected along the axial direction of the housing 11. Power line related components are installed in the first mounting area 114, and brake line related components (not shown in the figure) are installed in the second area 115, achieving simultaneous installation of power line related components and brake line related components (not shown in the figure) within the cavity. This design eliminates the need for an additional welded brake housing, increases the brake cavity size, can reasonably increase the braking radius, shorten the braking length, and features a shorter heat dissipation conduction path and improved heat dissipation efficiency.

[0043] Please combine Figure 3 and Figure 4 The connector 13 includes a first connecting block 131, a second connecting block 132, and a snap fastener 133. The first connecting block 131 and the second connecting block 132 are radially mounted, and a plurality of snap fasteners 133 are disposed on the side of the connector 13, thereby fixing the connector 13 to the mounting groove 112.

[0044] The first connecting block 131 includes a first body 1311, a first flange 1312, a first reserved hole 1313, and a first terminal male connector 1314. The first flange 1312 is disposed on the outer periphery of the first body 1311 and extends radially from the outer periphery of the first body 1311. At least one first reserved hole 1313 is formed on the first body 1311, and the first terminal male connector 1314 is installed in the first reserved hole 1313 and connected to a power line.

[0045] The second connecting block 132 includes a second body 1321, a second flange 1322, a second reserved hole 1323, and a second terminal male connector 1324. The second flange 1322 is disposed on the outer periphery of the second body 1321 and extends radially from the outer periphery of the second body 1321. Multiple second reserved holes 1323 are formed at the connection between the first body 1311 and the second body 1321. The second terminal male connector 1324 is installed in the second reserved hole 1323 and is connected to the brake cable.

[0046] Specifically, the upper and lower end faces of the first flange 1312 and the second flange 1322 are coplanar.

[0047] Please combine Figure 2 , Figure 4 and Figure 5 The female connector 12 includes a housing 121, a core 122, holes 123, a threaded through hole 124, and a sealing ring 125. The core 122 is disposed within the housing 121, and multiple holes 123 are provided on the core 122. These holes 123 are inserted into and mate with the first male terminal connector 1314 and the second male terminal connector 1324. The shape and number of the holes 123 match those of the first male terminal connector 1314 and the second male terminal connector 1324, respectively, allowing for a plug-in method instead of the conventional screw-on tightening method, thus effectively improving assembly efficiency. The threaded through hole 124 is located at the bottom of the female connector 12, and is aligned with the threaded blind hole 113 and tightened with a screw. Furthermore, the sealing ring 125 is provided on the contact surface between the female connector 12 and the first boss 111, ensuring a sealed connection between the female connector 12 and the housing 11. The female connector 12 is connected to external wires.

[0048] The female connector 12 also includes a grounding terminal 126, which is installed in the core 122. The end of the grounding terminal 126 is crimped to the power line. The grounding terminal 126 is used to protect the operator when the servo motor 1 generates a weak current or leaks current, or to prevent static electricity from interfering with or damaging the servo motor 1 during operation. The grounding terminal 126 needs to be used in conjunction with the connector 13. The connector 13 saves installation space, allowing the grounding terminal 126 to be placed in the female connector 12. Conventional connector grounding requires an adapter terminal, while the aforementioned grounding terminal 126 optimizes the adapter process. After the female connector 12 is installed on the housing 11, the grounding terminal 126 directly contacts the plane of the housing 11.

[0049] In the first embodiment, please refer to Figure 3and Figure 4 Multiple latches 133 are disposed on the outer edge of the connector 13, located on the outer edges of the first flange 1312 and the second flange 1322, and the latches 133 extend toward the female head 12.

[0050] The mounting groove 112 includes a stepped structure 1121, the inner wall of which extends radially to form the stepped structure 1121. The stepped structure 1121 is used to restrict the movement of the connector 13 in the axial direction of the mounting groove 112. The first flange 1312 and the second flange 1322 are placed on the stepped structure 1121, and the buckle 133 abuts against the stepped structure 1121, so that the first flange 1312 and the second flange 1322 are embedded in the stepped structure 1121.

[0051] Adhesive is poured into the mounting groove 112. The adhesive flows through the end faces of the first connecting block 131 and the second connecting block 132 and into the stepped structure 1121. After curing, the sealing structure 14 is formed, which wraps around the end faces of the first connecting block 131 and the second connecting block 132.

[0052] In the second embodiment, please refer to Figures 6 to 10 The sealing structure 14 also covers the inner wall of the housing 11. A plurality of the latches 133 are disposed on the side wall of the connector 13. The latches 133 are inverted and located below the first flange 1312 and the second flange 1322. The latches 133 extend to the edges of the first flange 1312 and the second flange 1322.

[0053] The connector 13 also includes a material extraction port 134 and an opening 135. A material extraction port 134 is formed on the back of each snap-fit ​​133, which thins the sidewall of the snap-fit ​​133 connection. During connector 13 installation, the snap-fit ​​133 is subjected to compressive force, causing a slight deformation of the sidewall where the snap-fit ​​133 is located, making it easier for the snap-fit ​​133 to engage with the mounting groove 112. Multiple openings 135 are formed on the sidewall at the bottom of the connector 13. These openings 135 are used for potting adhesive. After the connector 13 is installed in the mounting groove 112, adhesive is applied to fix the connector 13. The adhesive flows into the housing 11 through the openings 135, and after curing, forms the sealing structure 14. The sealing structure 14 encloses the end and outer periphery of the connector 13, as well as the inner wall of the housing 11.

[0054] The mounting groove 112 includes a groove 1122, the inner wall of the mounting groove 112 is recessed to form the groove 1122, and the buckle 133 is engaged in the groove 1122 to fix the connector 13 in the mounting groove 112.

[0055] The first and second embodiments described above are merely two specific examples of the connector 13 being installed in the mounting groove 112. The structure used for installation is not limited to the above embodiments and can be any other structure capable of achieving a fixed connection. Furthermore, the fixed connection structure of the buckle 133 and the sealing structure 14 in the first and second embodiments described above is not only applicable to the connector 13 in this utility model, but also applicable to integrated connectors or other types of connectors, enabling the connector to be fixedly installed in the mounting groove 112.

[0056] The installation method of the servo motor 1 is as follows: First, the first connecting block 131 is installed in the mounting slot 112 using the clip 133. At this time, the second connecting block 132 is not installed, leaving space for the second connecting block 132. After the power line-related components are installed in the housing 11, the power line is pulled out from the housing 11 and connected to the first terminal male connector 1314. After checking that the connection is correct, glue, such as epoxy resin, is pre-applied for preliminary fixation.

[0057] The first connecting block 131, connected to the power line, is installed on the mounting groove 112, leaving space for the brake cable. After pressing the brake assembly in, the brake cable is pulled into the receiving space and connected to the second terminal male 1324. Then, the second connecting block 132 is installed. Secondary casting is performed into the mounting groove 112 to further fix the connector 13 and improve sealing. The adhesive cures later to form the sealing structure 14. During the installation of the connector 13 and the brake assembly, there is no need to reserve a long brake cable, avoiding excessive bending and damage to the long brake cable within the housing 11; nor is it necessary to leave a certain gap within the housing 11 for the installation of the brake cable, which would increase the length of the servo motor and reduce its adaptability, making it impossible to install the servo motor on products with limited installation space. Simultaneously, the shorter brake cable can be mounted flush against the PCB board, facilitating layout; and the use of insulated wire eliminates the exposed terminal pin structure, effectively avoiding the risk of short circuits. Furthermore, the brake connector in this design is a split-assembly type connector. The brake wire-related components can be directly led out from the plane where the brake (not shown in the figure) is located, eliminating the need for the prior art to cut a groove on the side of the brake and lead out the brake wire from the groove. This helps to increase the internal space of the brake and increase the number of enameled wire turns stored in the internal space, so that the brake can generate a greater attractive force when energized and a correspondingly greater static friction torque when de-energized, thereby improving the braking performance.

[0058] Align the threaded through hole 124 on the female connector 12 with the threaded blind hole 113 on the first boss 111, install screws, and tighten to maintain a seal between the female connector 12 and the housing 11. Since the threaded blind hole 113 is used and the first boss 111 is integrally formed with the housing 11, an airtight seal can be maintained without additional sealing operations. In summary, this utility model discloses a servo motor. By installing a first connecting block connected to the power line on the mounting slot and leaving space for the brake line, after pressing in the brake assembly, the brake line is connected to the second terminal male connector and the second connecting block is installed, thus achieving simple installation of the brake line. The connector in this utility model avoids the risk of wire stacking caused by excessively long brake lines, optimizes the brake line layout, and improves the servo motor's adaptability to operating conditions, application environment, and working efficiency.

[0059] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A connector, characterized in that, The connector is mounted on the housing of the servo motor. The connector includes a first connecting block and a second connecting block, which are radially mounted.

2. The connector as described in claim 1, characterized in that, A first male terminal is installed on the first connecting block, and the first male terminal is connected to the power line.

3. A connector as described in claim 2, characterized in that, A second male terminal is installed on the second connecting block, and the second male terminal is connected to the brake cable.

4. A connector as described in claim 3, characterized in that, The connector also includes multiple snap-fits.

5. A connector as described in claim 4, characterized in that, Multiple of the aforementioned snap-fits are disposed on the outer edge of the connector.

6. A connector as described in claim 4, characterized in that, Multiple of the aforementioned latches are disposed on the sidewall of the connector.

7. A connector as described in claim 6, characterized in that, The back of the buckle is designed to allow material to be removed, forming a material removal opening.

8. A connector as described in claim 7, characterized in that, The connector also includes an opening formed on the sidewall edge of the connector.

9. A servo motor, comprising a connector as described in any one of claims 1-8, characterized in that, The servo motor includes a housing, the housing includes a first boss and a mounting groove, the first boss is disposed on the housing, the mounting groove is formed at the center of the first boss, and the connector is installed in the mounting groove by means of the buckle.

10. The servo motor as described in claim 9, characterized in that, The servo motor also includes a sealing structure formed by curing adhesive, which is used to fix the first connecting block and the second connecting block in the mounting groove.

11. The servo motor as described in claim 10, characterized in that, The buckle is disposed on the outer edge of the connector, and the inner wall of the mounting groove extends radially to form a stepped structure. The buckle abuts against the stepped structure, and the connector is embedded in the stepped structure through the buckle.

12. The servo motor as described in claim 11, characterized in that, The adhesive flows into the stepped structure through the end face of the connector, and after curing, forms the sealing structure, which encloses the end of the connector.

13. The servo motor as described in claim 10, characterized in that, The buckle is disposed on the side wall of the connector, and the inner wall of the mounting groove is recessed to form a groove, into which the buckle is engaged.

14. The servo motor as described in claim 13, characterized in that, The connector also includes an opening formed on the sidewall edge of the connector.

15. The servo motor as described in claim 14, characterized in that, The adhesive flows into the housing through the opening at the end of the connector, and after curing, forms the sealing structure. The sealing structure covers the end and outer periphery of the connector, as well as the inner wall of the housing.

16. The servo motor as described in claim 15, characterized in that, The back of the buckle is designed to allow material to be removed, forming a material removal opening.

17. The servo motor as described in any one of claims 11 or 13, characterized in that, The housing includes a first mounting area and a second mounting area, which are connected along the axial direction of the housing. A power line related component is installed in the first mounting area, and the power line related component is connected to a first terminal male connector through a power line. A brake line related component is installed in the second mounting area, and the brake line related component is connected to a second terminal male connector through a brake line.

18. The servo motor as described in claim 17, characterized in that, The servo motor also includes a female connector, which is inserted into the other end of the connector and is fixedly connected to the housing. The female connector also includes a sealing ring, which is installed on the contact surface between the female connector and the first boss.

19. The servo motor as described in claim 18, characterized in that, The female connector also includes a housing, a rubber core, and a grounding terminal. The rubber core is disposed in the housing, and the grounding terminal is installed in the rubber core. The end of the grounding terminal is crimped to the power line. After the female connector is installed on the housing, the grounding terminal contacts the plane of the housing.

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