Drive assembly and servo drive device

Abstract

The application belongs to the technical field of driver host, and discloses a driver assembly and a servo driving device, wherein the driver assembly comprises: an expansion module, which comprises an expansion shell and an expansion circuit board arranged in the expansion shell, and a first grounding component electrically connected to the expansion circuit board is arranged on the expansion circuit board; a driver host, which comprises a host shell, a host circuit board arranged in the host shell, and a second grounding component electrically connected to the host circuit board; a first grounding connector, which is embedded and fixed on the host shell; and a second grounding connector, which is matched with the first grounding connector, and the second grounding connector passes through the expansion shell, electrically connects the first grounding component, the first grounding connector and the second grounding component, and abuts the expansion shell against the host shell. The application can solve the technical problems that the grounding mode of the expansion module is relatively complex and unstable.

Description

Technical Field

[0001] This application belongs to the field of driver technology, specifically relating to a driver component and a servo drive device. Background Technology

[0002] Connecting an expansion module to the driver can expand the driver's functionality. To ground the expansion module, a grounding circuit is usually required to be drawn from the expansion module and grounded. However, the grounding method of the expansion module is usually more complex and unstable. Utility Model Content

[0003] The purpose of this application is to provide a driver component and servo drive device to solve the technical problem that the grounding method of the expansion module in the prior art is relatively complex and unstable.

[0004] To achieve the above objectives, an embodiment of the first aspect of this application provides a driver assembly, including: an expansion module including an expansion housing and an expansion circuit board disposed within the expansion housing, the expansion circuit board having a first grounding member electrically connected to the expansion circuit board; a driver host including a host housing and a host circuit board disposed within the host housing, and a second grounding member electrically connected to the host circuit board; a first grounding connector embedded and fixed on the host housing; and a second grounding connector adapted to the first grounding connector, the second grounding connector passing through the expansion housing to electrically connect the first grounding member, the first grounding connector, and the second grounding member, and to hold the expansion housing against the host housing.

[0005] In some embodiments, the second grounding connector is provided with an external thread, the first grounding connector is provided with an internal thread through hole adapted to the external thread, and the second grounding member is provided with an internal thread hole adapted to the external thread. After the second grounding connector passes through the expansion housing, it is threaded to connect the first grounding connector and the second grounding member, and the first grounding member, the first grounding connector and the second grounding member are electrically connected.

[0006] In some embodiments, the first grounding connector is configured as an embedded nut, and the second grounding connector is configured as a bolt.

[0007] In some embodiments, the inlaid nut includes an inlaid end embedded in the main housing and a first protruding end protruding out of the main housing. The expansion circuit board is provided with a through hole corresponding to the bolt, and the first grounding member is a metal plating layer around the through hole. The bolt passes through the expansion housing, the through hole, and the inlaid nut in sequence and is then connected to the second grounding member.

[0008] In some embodiments, a heat sink base is provided inside the driver host, and a second grounding member is provided on the heat sink base.

[0009] In some embodiments, the second grounding member includes a second protruding end protruding from the heat sink base, the second protruding end being disposed in contact with the inlaid end of the inlaid nut.

[0010] In some embodiments, one of the expansion housing and the main housing is provided with a positioning hole, and the other is provided with a positioning post that is inserted into the positioning hole.

[0011] In some embodiments, the expansion module includes a first plug-in terminal, and the driver host includes a second plug-in terminal that plugs into the first plug-in terminal.

[0012] In some embodiments, the main housing is provided with a plug hole facing the second plug terminal; the driver main unit also includes a protective plate detachably connected to the main housing, the protective plate being used to close the plug hole.

[0013] An embodiment of the second aspect of this application also provides a servo drive device, which includes the driver component of any one of the embodiments of the first aspect.

[0014] The beneficial effects of the driver assembly and servo drive device provided in this application are as follows: By pre-embedding and fixing the first grounding connector to the main housing, and adapting the second grounding connector through the expansion housing to the first grounding connector, the first grounding component, the first grounding connector, and the second grounding component can be electrically connected, allowing the first grounding component to be grounded through the second grounding component. This also allows the expansion housing to abut against the main housing. Thus, while electrically connecting the first grounding component in the expansion module to the second grounding component in the driver main housing, the expansion housing and the main housing can also be securely fixed together, resulting in a more stable connection between the expansion module and the driver main housing, a simpler connection structure, and better shock resistance. This application can solve the technical problems of complex and unstable grounding methods in expansion modules. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a driver assembly provided in some embodiments of this application; Figure 2 This is a schematic diagram illustrating the connection between the expansion module and the driver host provided in some embodiments of this application; Figure 3This is a schematic diagram of the structure of the extension module provided in some embodiments of this application; Figure 4 Schematic diagram of the structure of the driver host provided in some embodiments of this application Figure 1 ; Figure 5 Schematic diagram of the structure of the driver host provided in some embodiments of this application Figure 2 ; Figure 6 This is a schematic diagram of the internal structure of the drive host provided in some embodiments of this application; Figure 7 This is a schematic diagram illustrating the connection between the driver host and the protective plate according to some embodiments of this application.

[0017] The following are the labeling elements in the figure: 100. Driver components; 10. Expansion module; 11. Expansion housing; 111. Mounting slot; 12. Expansion circuit board; 121. Through hole; 13. First grounding component; 14. Positioning post; 15. First plug-in terminal; 20. Driver unit; 21. Main unit housing; 211. Positioning hole; 212. Plug-in hole; 22. First grounding connector; 221. Internal threaded through hole; 222. First protruding end; 223. Inserted end; 23. Main unit circuit board; 24. Second grounding component; 241. Internal threaded hole; 25. Second plug-in terminal; 26. Heat sink base; 30. Second grounding connector; 40. Protective board. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] An embodiment of the first aspect of this application provides a driver assembly capable of controlling the speed and direction of rotation of a servo motor.

[0023] Please refer to Figure 1 and Figure 2 The driver assembly 100 includes an expansion module 10, a driver host 20, a first grounding connector 22, and a second grounding connector 30. The expansion module 10 includes an expansion housing 11 and an expansion circuit board 12 disposed within the expansion housing 11. The expansion circuit board 12 is provided with a first grounding member 13 electrically connected to the expansion circuit board 12.

[0024] The drive host 20 includes a host housing 21, a host circuit board 23 disposed within the host housing 21, and a second grounding member 24 electrically connected to the host circuit board 23.

[0025] The first grounding connector 22 is embedded and fixed on the main housing 21. The second grounding connector 30 is adapted to the first grounding connector 22 and passes through the expansion housing 11, electrically connecting the first grounding member 13, the first grounding connector 22 and the second grounding member 24, and holding the expansion housing 11 against the main housing 21.

[0026] The driver host 20 can control the device to operate in a predetermined sequence through the circuitry of the control device. Optionally, the driver host 20 is a servo driver. Optionally, the driver host 20 can also be a stepper motor driver, etc.

[0027] The expansion module 10 can extend the specific functions of the drive host 20 without requiring redundant expansion circuitry, thus reducing the circuit board area and size of the drive host 20. Optionally, the expansion module 10 may include a temperature sensor expansion module, a communication expansion module, etc.

[0028] The expansion housing 11 forms a recess or cavity, etc. The expansion circuit board 12 is located inside the expansion housing 11, thus the expansion housing 11 protects the expansion circuit board 12. The expansion circuit board 12 can be electrically connected to the driver host 20 and transmit signals between the driver host 20 and the driver host 20.

[0029] The first grounding component 13 is electrically connected to the expansion circuit board 12, specifically to the grounding connection on the expansion circuit board 12.

[0030] The main unit housing 21 forms a groove or cavity, etc. The main unit circuit board 23 is located inside the main unit housing 21, so the main unit housing 21 can protect the main unit circuit board 23.

[0031] The second grounding component 24 is electrically connected to the main circuit board 23, specifically to the ground of the main circuit board 23. Optionally, the second grounding component 24 can be a metal part or a conductive non-metal part.

[0032] The first grounding connector 22 is fixed to the main unit housing 21 by embedding, and can be securely connected to the main unit housing 21. Optionally, the main unit housing 21 is a plastic housing, and the first grounding connector 22 can be embedded and fixed to the main unit housing 21 by integral injection molding. Optionally, the first grounding connector 22 can be a metal part or a conductive non-metal part.

[0033] The second grounding connector 30 is adapted to the first grounding connector 22, that is, the second grounding connector 30 is connected to the first grounding connector 22, and the second grounding connector 30 and the first grounding connector 22 are electrically connected. Optionally, the second grounding connector 30 can be a metal part or a conductive non-metal part.

[0034] The second grounding connector 30 passes through the expansion housing 11 and electrically connects the first grounding member 13, the first grounding connector 22, and the second grounding member 24, so that the expansion housing 11 abuts against the main housing 21. That is, when it is necessary to connect the expansion module 10 and the driver host 20, the first grounding member 13 and the second grounding member 24 can be electrically connected through the first grounding connector 22 and the second grounding connector 30. The first grounding member 13 is grounded through the second grounding member 24, thereby realizing the grounding connection between the expansion module 10 and the driver host 20.

[0035] Optionally, the first grounding member 13 can contact and be electrically connected to the first grounding connector 22, and the second grounding connector 30 can be directly fixed and electrically connected to the second grounding member 24. The first grounding member 13 is electrically connected to the second grounding member 24 in sequence through the first grounding connector 22 and the second grounding connector 30.

[0036] Optionally, the first grounding connector 22 may also contact and electrically connect with the first grounding member 13 and the second grounding member 24 respectively, with the first grounding member 13 electrically connected to the second grounding member 24 through the first grounding connector 22.

[0037] The first grounding connector 22 is fixed to the main housing 21, and the second grounding connector 30 passes through the expansion housing 11 and connects to the first grounding connector 22, holding the expansion housing 11 against the main housing 21. In other words, the second grounding connector 30 fixes the expansion housing 11, the first grounding connector 22, and the main housing 21 together. The first grounding connector 22 and the second grounding connector 30 can both electrically connect the first grounding component 13 and the second grounding component 24, grounding the first grounding component 13, and fix the main housing 21 to the expansion housing 11, ensuring a stable connection between them.

[0038] The beneficial effects of this application embodiment are as follows: By pre-embedding and fixing the first grounding connector 22 onto the main housing 21, and adapting the second grounding connector 30 through the expansion housing 11 to the first grounding connector 22, the first grounding component 13, the first grounding connector 22, and the second grounding component 24 can be electrically connected, allowing the first grounding component 13 to be grounded through the second grounding component 24. This also allows the expansion housing 11 to abut against the main housing 21. Thus, while electrically connecting the first grounding component 13 in the expansion module 10 to the second grounding component 24 in the driver host 20, the expansion housing 11 and the main housing 21 can also be securely fixed together, resulting in a more stable connection between the expansion module 10 and the driver host 20. The connection structure is simpler and has better shock resistance. This application embodiment can solve the technical problem of the complex and unstable grounding method of the expansion module 10. Moreover, there is no need to disassemble the grounding circuit when disassembling and assembling the expansion module 10, making the disassembly and assembly process simpler and faster.

[0039] In some embodiments, please refer to Figure 1 and Figure 2The second grounding connector 30 has an external thread, the first grounding connector 22 has an internal thread through hole 221 adapted to the external thread, and the second grounding member 24 has an internal thread hole 241 adapted to the external thread. After passing through the expansion housing 11, the second grounding connector 30 is threaded to the first grounding connector 22, and after passing through the internal thread through hole 221 of the first grounding connector 22, it is threaded to the second grounding member 24, thus electrically connecting the first grounding member 13, the first grounding connector 22, and the second grounding member 24.

[0040] The external thread of the second grounding connector 30 is screwed into the internal threaded through hole 221 of the first grounding connector 22, and the external thread of the second grounding connector 30 is also screwed into the internal threaded hole 241 of the second grounding member 24. Thus, the second grounding connector 30 is in contact with and electrically connected to the first grounding connector 22 and the second grounding member 24, respectively. The first grounding member 13 is electrically connected to the second grounding member 24 through the first grounding connector 22 and the second grounding connector 30.

[0041] Optionally, the internal threaded hole 241 can be a blind hole. Optionally, the internal threaded hole 241 can also be a through hole.

[0042] The beneficial effects of this application embodiment are as follows: the second grounding connector 30 is threadedly connected to the first grounding connector 22 and the second grounding member 24, so the connection between the second grounding connector 30 and the first grounding connector 22 and the second grounding member 24 is relatively firm and convenient for disassembly and assembly. Moreover, the second grounding connector 30 and the second grounding member 24 can form an electrical connection through contact, and the first grounding member 13 can be stably electrically connected to the second grounding member 24 through the first grounding connector 22 and the second grounding connector 30.

[0043] In some embodiments, please refer to Figure 1 and Figure 2 The first grounding connector 22 is configured as an embedded nut, and the second grounding connector 30 is configured as a bolt, which holds the extended housing 11 against the main housing 21.

[0044] Both the nut and bolt are metal parts. The bolt has a head and a shank. The shank passes through the expansion housing 11 and is screwed into the internal threaded through hole 221 and the internal threaded hole 241. The head holds the expansion module 10 against the main housing 21, and the head and the main housing 21 clamp the expansion module 10.

[0045] Optionally, one first grounding connector 22 can be provided, and correspondingly, one internal threaded hole 241 is provided for each of the second grounding connector 30 and the second grounding member 24. Optionally, multiple first grounding connectors 22 can be provided, and correspondingly, multiple internal threaded holes 241 are provided for each of the second grounding connectors 30 and the second grounding member 24, making the connection between the second grounding connector 30 and the driver host 20 more secure.

[0046] The beneficial effects of this application embodiment are as follows: the connection between the bolt and the nut is relatively firm. By connecting the expansion housing 11 and the main housing 21 with the bolt and the embedded nut, the connection between the expansion housing 11 and the main housing 21 can be made more secure. Moreover, the bolt and the embedded nut can conduct electricity, which can not only electrically connect the first grounding member 13 and the second grounding member 24, but also firmly fix the main housing 21 and the expansion housing 11 together. Both the bolt and the nut are standard parts. The first grounding connector 22 is set as an embedded nut and the second grounding connector 30 is set as a bolt, making it easy to manufacture or purchase the first grounding connector 22 and the second grounding connector 30.

[0047] In other embodiments, the first grounding connector 22 is provided with a connecting hole, and the second grounding connector 30 is a rivet riveted into the connecting hole.

[0048] In some embodiments, please refer to Figure 1 and Figure 2 The inlaid nut includes an inlaid end 223 embedded in the main housing 21 and a first protruding end 222 protruding out of the main housing 21. The expansion circuit board 12 is provided with a through hole 121 corresponding to the bolt. The first grounding member 13 is a metal plating layer around the through hole 121. The bolt passes through the expansion housing 11, the through hole 121 and the inlaid nut in sequence and is connected to the second grounding member 24.

[0049] The inlay end 223 is fixed to the main housing 21. The first protruding end 222 extends toward the inlay end 223 toward the first grounding member 13 and is electrically connected to the first grounding member 13.

[0050] Optionally, the metal plating can be applied to the extension circuit board 12 by electroplating, chemical plating, or other methods.

[0051] Optionally, the metal plating can be applied to the wall of the through hole 121, with the bolt inserted into the through hole 121 and contacting the metal plating. Alternatively, the metal plating can be a ring around the through hole 121, with the ring positioned on the side of the expansion circuit board 12 near the driver host 20. The first protruding end 222 abuts against the ring, which can limit the position of the expansion circuit board 12, making the expansion circuit board 12 more stable.

[0052] The beneficial effects of this embodiment are as follows: the wall of the through hole 121 can restrict the position of the bolt in its own radial direction. After the bolt passes through the expansion housing 11 and the through hole 121, it can be aligned with the internal thread through hole 221 of the embedded nut, and the bolt can be quickly connected to the embedded nut. The first grounding member 13 is set as a metal plating layer around the through hole 121, which occupies a small area on the expansion circuit board 12 and has little impact on the components on the expansion circuit board 12.

[0053] In some embodiments, please refer to Figure 2 The drive host 20 is provided with a heat sink base 26, and the second grounding member 24 is provided on the heat sink base 26.

[0054] The heat sink base 26 is a conductor, and the second grounding member 24 is electrically connected to the main circuit board 23 and the heat sink base 26 respectively.

[0055] Optionally, the radiator base 26 is a die-cast aluminum base, and the second grounding member 24 can be a die-cast connector on the radiator base 26, the die-cast connector having an internal threaded hole 241. For example, ... Figure 5 and Figure 6 As shown, there are three second grounding components 24 and three first grounding connectors 22, with each of the three first grounding connectors 22 corresponding to one of the three second grounding components 24.

[0056] In some embodiments, please refer to Figure 2 The second grounding member 24 includes a second protruding end protruding from the radiator base 26, which is in contact with the inlaid end 223 of the inlaid nut. That is, the inlaid nut is directly electrically connected to the second grounding member 24, and the first grounding member 13 is electrically connected to the second grounding member 24 through the inlaid nut. The second protruding end connects the inlaid nut to the radiator base 26, and the first grounding member 13 can achieve stable grounding through the inlaid nut, the second grounding member 24, and the radiator base 26.

[0057] Optionally, when the bolt is screwed to the inlaid nut and the second protruding end respectively, the bolt squeezes and locks the inlaid nut and the second protruding end, making the contact between the inlaid nut and the second protruding end more stable. Furthermore, the first grounding member 13 is electrically connected to the second grounding member 24 through the bolt and the inlaid nut respectively, resulting in higher reliability of the electrical connection between the first grounding member 13 and the second grounding member 24, and thus higher grounding reliability of the first grounding member 13. Optionally, when the radiator base 26 is a die-cast aluminum base, the second protruding end is a die-cast connector.

[0058] In some implementations, the first grounding connector 22 is injection molded to the main housing 21.

[0059] The main unit housing 21 is made of plastic. During the injection molding of the main unit housing 21, the first grounding connector 22 is placed as an insert into the injection mold of the main unit housing 21. After the main unit housing 21 is formed, the first grounding connector 22 is embedded in the main unit housing 21, and the connection between the main unit housing 21 and the first grounding connector 22 is more secure.

[0060] In some embodiments, please refer to Figures 3 to 5 One of the extended housing 11 and the main housing 21 is provided with a positioning hole 211, and the other is provided with a positioning post 14 that is inserted into the positioning hole 211.

[0061] Optionally, a positioning hole 211 can be provided on the expansion housing 11, and a positioning post 14 can be provided on the main housing 21. When installing the expansion module 10, the positioning hole 211 can be fitted onto the positioning post 14 to install the expansion module 10 into a preset position on the drive host 20.

[0062] Optionally, a positioning post 14 can be provided on the expansion housing 11, and a positioning hole 211 can be provided on the main housing 21. When installing the expansion module 10, the positioning post 14 can be inserted into the positioning hole 211 to install the expansion module 10 into a preset position on the drive host 20.

[0063] Optionally, multiple positioning posts 14 and multiple positioning holes 211 can be set. The positioning posts 14 and the positioning holes 211 correspond one-to-one. In any direction perpendicular to the length of the positioning posts 14, the hole walls of the multiple positioning holes 211 can restrict the movement of the multiple positioning posts 14.

[0064] Optionally, the positioning hole 211 can be set to one, and the positioning post 14 can be set to one. The positioning hole 211 is a polygonal hole, and the positioning post 14 is a polygonal prism. In any direction perpendicular to the length of the positioning post 14, the hole wall of the positioning hole 211 can restrict the movement of the positioning post 14.

[0065] Optionally, the extension direction of the positioning post 14 and the extension direction of the positioning hole 211 are respectively the first direction X.

[0066] The beneficial effect of this application embodiment is that: the positioning hole 211 and the positioning post 14 can position the position of the main housing 21 relative to the expansion housing 11, so that the second grounding connector 30 can be quickly connected to the first grounding connector 22.

[0067] In some embodiments, please refer to Figures 3 to 5 The expansion module 10 includes a first plug-in terminal 15, and the driver host 20 includes a second plug-in terminal 25 that plugs into the first plug-in terminal 15.

[0068] Both the first connector 15 and the second connector 25 are capable of transmitting electrical signals. The first connector 15 is electrically connected to the expansion circuit board 12 of the expansion module 10, and the second connector 25 is electrically connected to the main circuit board 23 of the driver host 20. The insertion of the first connector 15 and the second connector 25 ensures a stable electrical connection between the main circuit board 23 and the expansion circuit board 12, enabling stable transmission of electrical signals between the driver host 20 and the expansion module 10.

[0069] Optionally, the first plug-in terminal 15 is located at one end of the expansion module 10 along the first direction X near the driver host 20, and the second plug-in terminal 25 is located at one end of the driver host 20 along the first direction X near the expansion module 10, with the first plug-in terminal 15 and the second plug-in terminal 25 extending along the first direction X respectively.

[0070] In some embodiments, please refer to Figures 4 to 7 The main housing 21 is provided with a plug hole 212, which is directly opposite the second plug terminal 25; the driver main unit 20 also includes a protective plate 40 that is detachably connected to the main housing 21, and the protective plate 40 is used to close the plug hole 212.

[0071] The insertion hole 212 extends from the outer surface of the main housing 21 to the inner surface of the main housing 21. The insertion hole 212 is directly opposite the second insertion terminal 25, so that the first insertion terminal 15 can be inserted into the second insertion terminal 25 after passing through the insertion hole 212.

[0072] When the drive host 20 is not connected to the expansion module 10, the protective plate 40 can be connected to the host housing 21 and seal the connector 212, preventing dust and other dirt from entering the drive host 20 and protecting the second connector 25. When the drive host 20 is connected to the expansion module 10, the protective plate 40 can be removed from the host housing 21, exposing the second connector 25, which can then connect to the first connector 15.

[0073] Optionally, two magnets can be respectively provided on the main unit housing 21 and the protective plate 40, making it easy to connect to and remove the protective plate 40 from the main unit housing 21. Optionally, the main unit housing 21 is provided with blind holes, and the walls of the blind holes are provided with threads, so the protective plate 40 can also be screwed into the blind holes of the main unit housing 21 with through-hole screws.

[0074] In other embodiments, the end of the second plug terminal 25 that is plugged into the first plug terminal 15 may extend into the plug hole 212.

[0075] In some embodiments, please refer to Figure 3The expansion housing 11 forms a mounting groove 111 with its opening facing the main housing 21. The second grounding connector 30 holds the expansion housing 11 against the main housing 21, and the main housing 21 closes the opening of the mounting groove 111. Compared to the expansion housing 11 forming a cavity, the expansion housing 11 forming the mounting groove 111 is easier to process and shape, and the main housing 21's closure of the mounting groove 111 provides protection for the components within the mounting groove 111. The first grounding connector 22 can extend directly to the first grounding member 13 inside the expansion housing 11.

[0076] In other embodiments, the extended housing 11 may also form a closed cavity, and the first grounding connector 22 may extend through the extended housing 11 to the first grounding member 13.

[0077] In some embodiments, please refer to Figures 1 to 3 The driver assembly 100 includes an expansion module 10, a driver host 20, a first grounding connector 22, and a second grounding connector 30. The expansion module 10 includes an expansion housing 11 and an expansion circuit board 12 disposed within the expansion housing 11. The expansion circuit board 12 is provided with a first grounding member 13 electrically connected to the expansion circuit board 12.

[0078] The drive host 20 includes a host housing 21, a host circuit board 23 disposed within the host housing 21, and a second grounding member 24 electrically connected to the host circuit board 23.

[0079] The first grounding connector 22 is embedded and fixed to the main housing 21. The second grounding connector 30 is adapted to the first grounding connector 22. The second grounding connector 30 is configured as a bolt with external threads, the first grounding connector 22 is configured as an inlaid nut with an internal thread through hole 221 adapted to the external threads, and the second grounding member 24 has an internal thread hole 241 adapted to the external threads. After passing through the expansion housing 11, the second grounding connector 30 is threadedly connected to the first grounding connector 22 and the second grounding member 24, and electrically connects the first grounding member 13, the first grounding connector 22, and the second grounding member 24. The bolt holds the expansion housing 11 against the main housing 21.

[0080] An embodiment of the second aspect of this application also provides a servo drive device, which includes the driver component 100 of any one of the embodiments of the first aspect.

[0081] Optionally, the servo drive device may also include power components such as servo motors.

[0082] The beneficial effects of the embodiments of this application are as follows: the servo drive device includes the driver component 100 in the first aspect embodiment, which enables the expansion module 10 to be grounded through the grounding circuit of the driver host 20, without the need to lead out the grounding circuit from the expansion module 10, and has all the effects of the driver component 100.

[0083] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A driver assembly, characterized in that, include: An expansion module includes an expansion housing and an expansion circuit board disposed within the expansion housing, wherein the expansion circuit board is provided with a first grounding member electrically connected to the expansion circuit board; The drive host includes a host housing, a host circuit board disposed within the host housing, and a second grounding member electrically connected to the host circuit board; The first grounding connector is embedded and fixed on the main unit housing; The second grounding connector is adapted to the first grounding connector and passes through the extended housing to electrically connect the first grounding member, the first grounding connector and the second grounding member, and to hold the extended housing against the main housing.

2. The driver assembly as claimed in claim 1, characterized in that, The second grounding connector has an external thread, the first grounding connector has an internal thread through hole adapted to the external thread, and the second grounding component has an internal thread hole adapted to the external thread. After the second grounding connector passes through the extended housing, it threadedly connects the first grounding connector and the second grounding component, and electrically connects the first grounding component, the first grounding connector and the second grounding component.

3. The driver assembly as claimed in claim 2, characterized in that, The first grounding connector is configured as an embedded nut, and the second grounding connector is configured as a bolt.

4. The driver assembly as claimed in claim 3, characterized in that, The inlaid nut includes an inlaid end embedded in the main housing and a first protruding end protruding out of the main housing. The expansion circuit board is provided with a through hole corresponding to the bolt. The first grounding member is a metal plating layer around the through hole. The bolt passes through the expansion housing, the through hole, and the inlaid nut in sequence and is then connected to the second grounding member.

5. The driver assembly as claimed in claim 4, characterized in that, The driver host is provided with a heat sink base, and the second grounding component is provided on the heat sink base.

6. The driver assembly as claimed in claim 5, characterized in that, The second grounding member includes a second protruding end that protrudes from the heat sink base and is in contact with the inlaid end of the inlaid nut.

7. The driver assembly as claimed in any one of claims 1-6, characterized in that, One of the extended housing and the main housing is provided with a positioning hole, and the other is provided with a positioning post that is inserted into the positioning hole.

8. The driver assembly as claimed in any one of claims 1-6, characterized in that, The expansion module includes a first plug-in terminal, and the driver host includes a second plug-in terminal that plugs into the first plug-in terminal.

9. The driver assembly as claimed in claim 8, characterized in that, The main unit housing is provided with a plug hole, which is directly opposite the second plug terminal; the driver main unit also includes a protective plate that is detachably connected to the main unit housing, and the protective plate is used to close the plug hole.

10. A servo drive device, characterized in that, The servo drive device includes the driver component according to any one of claims 1-9.

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