Functional module external reversing terminal for servo driver

Abstract

The utility model relates to the technical field of servo drivers, in particular to an external reversing terminal for a functional module of a servo driver, which comprises a terminal base, a first slot and a second slot are arranged in the terminal base, and a first wiring through groove and a second wiring through groove are arranged along one side of the first slot and one side of the second slot. A first support arm with a first conductor guide groove and a second support arm with a second conductor guide groove are arranged on one side of the base, a first conductor is arranged in the first conductor guide groove, and a second conductor is arranged in the second conductor guide groove; the terminal gland is arranged on the upper side of the terminal base; and a first locking threaded hole, a second locking threaded hole, a first locking screw and a second locking screw are arranged on the gland part of the terminal base, and the first locking screw and the second locking screw correspond to the first locking threaded hole and the second locking threaded hole. The device is simple in structure, wiring is convenient, safe insulation of non-connection parts can be achieved, wiring efficiency can be improved, and use safety of the servo driver function module can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of servo drivers, in particular to an externally connected reversing terminal for a functional module of a servo driver. Background Art

[0002] Servo drives, also known as "servo controllers" and "servo amplifiers", are controllers used to control servo motors. They function similarly to frequency converters acting on ordinary AC motors. They are part of the servo system and are mainly used in high-precision positioning systems. They are suitable for industrial control fields such as palletizing, wire cutting, punching, lasers, and 3C. Generally, servo motors are controlled by position, speed, and torque to achieve high-precision transmission system positioning. They are high-end products of transmission technology. The working principle is: first, the input three-phase AC power is rectified to obtain the corresponding DC voltage, and then the DC power is converted into AC output power with adjustable frequency and voltage through the drive circuit to drive the corresponding servo motor.

[0003] In order to realize the above functions, they are modularized according to different functions, thereby forming a rectifier module for realizing the rectifier function and an inverter module for realizing the inverter function. In order to facilitate the installation between the modules, a plug-in conductive mechanism is generally set on the side of each module. It is common to preset plugs and sockets on two adjacent modules. When the two are connected side by side, the plug of the left functional module is directly inserted into the socket of the right functional module to realize the electrical connection.

[0004] However, if the installation space is limited, the two adjacent modules cannot be plugged in left and right, or multiple other functional modules need to be connected to the same functional module, the above traditional structure cannot meet the requirements. The commonly used method is to disassemble the functional module that needs to be branched, and weld or connect multiple wires on the busbar copper bar of its busbar seat, and then lead them out for connection to external functional modules.

[0005] It can be seen that the above operation is not only cumbersome but also inefficient. Although the electrical connection between the functional modules is achieved, there are safety hazards when the power is turned on.

[0006] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content

[0007] The purpose of the utility model is to overcome the above-mentioned problems of the prior art and provide an external reversing terminal for a functional module of a servo drive, which can effectively solve the technical problems in the prior art that the servo drive functional module adopts a side-insertion receiving space, and when multiple other functional modules need to be connected to the same functional module, the machine needs to be disassembled and additional wiring needs to be done, resulting in low efficiency and potential safety hazards.

[0008] The above objectives are achieved through the following technical solutions:

[0009] A functional module external reversing terminal for a servo drive, comprising a terminal base, a pair of first slots and second slots for plugging a first conductive wiring assembly and a second conductive wiring assembly into the terminal base, and a first wiring through slot and a second wiring through slot communicating with the outside are respectively formed along one side of the first slot and the second slot;

[0010] A first arm and a second arm are provided on one side of the terminal base, a first conductor guide groove leading to the first slot is provided on the first arm, and a second conductor guide groove leading to the second slot is provided on the second arm; correspondingly, a first conductor is provided in the first conductor guide groove, and a second conductor is provided in the second conductor guide groove; one end of the first conductor is connected to the first conductive wiring assembly, and the other end extends out of the first conductor guide groove; one end of the second conductor is connected to the second conductive wiring assembly, and the other end extends out of the second conductor guide groove;

[0011] It also includes a terminal cover arranged on the upper side of the terminal base, the terminal cover includes a terminal base cover portion matching the terminal base, a first arm cover portion matching the first arm, and a second arm cover portion matching the second arm; the terminal base cover portion is provided with a first locking threaded hole and a second locking threaded hole corresponding to the first slot and the second slot, the first locking screw is used to press the first conductive wiring assembly through the first locking threaded hole, and the second locking screw is used to press the second conductive wiring assembly through the second locking threaded hole.

[0012] Furthermore, a hidden groove is provided on the terminal base pressure cover portion of the terminal pressure cover, and the first locking threaded hole and the second locking threaded hole are both placed in the hidden groove; a terminal seat flap corresponding to it is provided on the hidden groove, and the terminal seat flap is movably connected to a group of inner walls of the hidden groove.

[0013] Furthermore, a partition is provided between the first slot and the second slot.

[0014] Furthermore, a plurality of terminal seat slots are provided along the inner wall of the terminal base, and correspondingly, a plurality of terminal seat buckles corresponding to the terminal seat slots are provided on the outer wall of the terminal gland.

[0015] Further, the length of the first support arm is greater than the length of the second support arm, and correspondingly, the length of the cover-pressing portion of the first support arm is greater than the length of the cover-pressing portion of the second support arm.

[0016] Furthermore, a plurality of support arm pin holes are arranged on the outer wall of the first support arm, and correspondingly, a plurality of support arm pin columns corresponding to the support arm pin holes are arranged on the bottom of the first support arm pressure cover portion.

[0017] Furthermore, the first conductor is L-shaped, and correspondingly, a first conductor extension groove for the first conductor to extend out is provided on one side of the first conductor guide groove facing the second support arm.

[0018] Furthermore, conductor connection holes are provided at outer ends of the first conductor and the second conductor.

[0019] Furthermore, the first conductive wiring assembly and the second conductive wiring assembly have the same specifications and both include a U-shaped socket, a locking screw seat is provided at the port of the U-shaped socket, and a conductor wiring cavity is formed between the lower side of the locking screw seat and the U-shaped socket; a locking threaded hole matching the first locking screw or the second locking screw is provided on the locking screw seat, and the first locking screw or the second locking screw is screwed together to achieve crimping of its end to the conductor in the conductor wiring cavity.

[0020] Furthermore, mutually symmetrical socket through grooves are provided on both sides of the U-shaped socket, and correspondingly, locking screw seat wings for movably clamping the socket through grooves are provided on both sides of the locking screw seat.

[0021] The external reversing terminal for the functional module of the servo drive provided by the utility model realizes the traction of the busbar on the non-left and right sides of the functional module, which can realize the upper and lower splicing of the functional module without being affected by the left and right side space; and it is also the wiring expansion of the functional module connected to the device, so that it can be more convenient to connect to the outside. The device has a simple structure, is convenient for wiring, and can also achieve safe insulation at non-connected places, which can not only improve the wiring efficiency, but also effectively improve the use safety of the servo drive functional module. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a first-view structural diagram of the external reversing terminal of the functional module for the servo drive according to the utility model;

[0023] Figure 2 This is a second perspective structural diagram of the external reversing terminal of the functional module for the servo drive according to the utility model;

[0024] Figure 3 This is a first-perspective exploded view of the external reversing terminal of the functional module for the servo drive according to the utility model;

[0025] Figure 4 This is an exploded view from a second perspective of the functional module external reversing terminal for the servo drive according to the utility model;

[0026] Figure 5 This is a schematic diagram of the connection between the conductor and the busbar copper bar in the external reversing terminal of the functional module for the servo drive described in the utility model;

[0027] Figure 6 This is a schematic diagram of the connection between the external reversing terminal and the functional module of the functional module used for the servo drive described in the utility model.

[0028] Graphic marking:

[0029] 1-terminal base, 101-first slot, 102-second slot, 103-first wiring slot, 104-second wiring slot, 105-first arm, 106-second arm, 107-first conductor guide slot, 108-second conductor guide slot, 109-partition, 110-terminal base slot, 111-arm pin hole, 112-first conductor extension slot, 113-terminal threaded fixing seat;

[0030] 2-terminal gland, 201-terminal base gland part, 202-first arm gland part, 203-second arm gland part, 204-first locking threaded hole, 205-second locking threaded hole, 206-hidden groove, 207-terminal base flip cover, 208-terminal base buckle, 209-arm pin;

[0031] 3-first conductive wiring assembly, 4-second conductive wiring assembly, 5-first conductor, 6-second conductor, 7-conductor connecting hole, 8-first locking screw, 9-second locking screw, 10-U-shaped socket, 11-locking screw seat, 12-conductor wiring cavity, 13-locking threaded hole, 14-sleeve through groove, 15-locking screw seat wing, 16-functional module, 17-busbar seat, 18-first busbar copper bar, 19-second busbar copper bar, 20-reversing terminal slot, 21-busbar screw. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] like Figure 1 to Figure 4 As shown, a functional module external reversing terminal for a servo drive includes a terminal base 1, a pair of first slots 101 and second slots 102 for plugging a first conductive wiring assembly 3 and a second conductive wiring assembly 4 are provided in the terminal base 1, and a first wiring through slot 103 and a second wiring through slot 104 communicating with the outside are provided along one side of the first slot 101 and the second slot 102, respectively, the first wiring through slot 103 and the second wiring through slot 104 are used for the penetration of external wiring, so that the external wiring can enter the first wiring through slot 103 and the second wiring through slot 104, and be electrically connected to the first conductive wiring assembly 3 and the second conductive wiring assembly 4;

[0034] A first arm 105 and a second arm 106 are provided on one side of the terminal base 1, and a first conductor guide groove 107 leading to the first slot 101 is provided on the first arm 105, and a second conductor guide groove 108 leading to the second slot 102 is provided on the second arm 106; correspondingly, a first conductor 5 is provided in the first conductor guide groove 107, and a second conductor 6 is provided in the second conductor guide groove 108; one end of the first conductor 5 is connected to the first conductive wiring assembly 3, and the other end extends out of the first conductor guide groove 107, and is used to be connected to the first busbar copper bar 18 in the busbar seat 17 of the functional module 16; one end of the second conductor 6 is connected to the second conductive wiring assembly 4, and the other end extends out of the second conductor guide groove 108, and is used to be connected to the second busbar copper bar 19 in the busbar seat 17 of the functional module 16;

[0035] It also includes a terminal cover 2 arranged on the upper side of the terminal base 1, the terminal cover 2 includes a terminal base cover part 201 matching the terminal base 1, a first arm cover part 202 matching the first arm 105, and a second arm cover part 203 matching the second arm 106; the terminal base cover part 201 is provided with a first locking threaded hole 204 and a second locking threaded hole 205 corresponding to the first slot 101 and the second slot 102, the first locking screw 8 is used to press the first conductive wiring assembly 3 through the first locking threaded hole 204, and the second locking screw 9 is used to press the second conductive wiring assembly 4 through the second locking threaded hole 205.

[0036] Working principle:

[0037] A reversing terminal slot 20 for inserting the first arm 105 and the second arm 106 in this solution is pre-arranged on the side wall of the busbar seat 17 of the rectifier or inverter functional module 16 of the servo drive to facilitate the insertion of the device, and then the other end of the first conductor 5 extending out of the first conductor guide groove 107 is connected to the first busbar copper bar 18, and the other end of the second conductor 6 in the second conductor guide groove 108 is connected to the second busbar copper bar 19; this process can complete the electrical connection between the device and the busbar copper bars in the functional module 16.

[0038] For the external functional module 16 to be connected, its two conductors, which can be copper bars or wires, pass through the first wiring groove 103 and the second wiring groove 104 respectively, and enter the first conductive wiring assembly 3 and the second conductive wiring assembly 4, and then by tightening the first locking screw 8 and the second locking screw 9, the first conductor 5 and the second conductor 6 are respectively pressed against the external wiring, thereby indirectly connecting the external functional module with the functional module, increasing the diversity of functional module wiring, avoiding the influence of traditional installation space, and thus the tediousness brought by disassembling the functional module and the safety hazards of disassembling.

[0039] like Figure 5 and Figure 6 As shown, in order to facilitate the fixed connection between the device and the functional module 16, the present embodiment further provides terminal threaded fixing seats 113 on both sides of the terminal base 1 to facilitate the connection with the threaded fixing seats provided on the outer wall of the busbar seat 17 by screws.

[0040] like Figure 3 and Figure 4 As shown, as an optimization of the terminal cover 2 described in this embodiment, a hidden groove 206 is opened on the terminal base cover part 201 of the terminal cover 2, and the first locking threaded hole 204 and the second locking threaded hole 205 are both placed in the hidden groove 206; the hidden groove 206 is provided with a corresponding terminal seat flap 207, and the terminal seat flap 207 is movably connected to a group of inner walls of the hidden groove 206.

[0041] Specifically, this structure can protect the first locking screw 8 and the second locking screw 9 of the device, for example, effectively preventing external liquid from entering and causing a short circuit.

[0042] In addition, the terminal seat flip cover 207 can also limit the upper part of the first locking screw 8 and the second locking screw 9 after they are screwed together, which can effectively prevent them from loosening due to long-term external vibration, and then causing the first locking screw 8 and the second locking screw 9 to shift upward infinitely, thereby causing the problem of detachment from the first locking threaded hole 204 and the second locking threaded hole 205.

[0043] In addition, if Figure 3 As shown, a partition 109 is further provided between the first slot 101 and the second slot 102. The partition 109 can effectively separate the first conductive wiring assembly 3 and the second conductive wiring assembly 4 into two independent spaces, and can effectively prevent the first conductive wiring assembly 3 and the second conductive wiring assembly 4 from contacting during the wiring process and during use after wiring, thereby causing a short circuit problem.

[0044] As a connection method between the terminal base 1 and the terminal gland 2 in this embodiment, a plurality of terminal base slots 110 are provided on the inner wall of the terminal base 1, and correspondingly, a plurality of terminal base buckles 208 corresponding to the terminal base slots 110 are provided on the outer wall of the terminal gland 2; the buckle connection is completed by crimping the terminal base 1 and the terminal gland 2 to each other to the terminal base buckles 208 and the terminal base slots 110. This structure can realize the rapid assembly of the terminal base 1 and the terminal gland 2, and can effectively improve the assembly efficiency and accuracy of the device.

[0045] It should be noted that, in the present embodiment, the length of the first support arm 105 is greater than the length of the second support arm 106, and correspondingly, the length of the first support arm pressure cover portion 202 is greater than the length of the second support arm pressure cover portion 203; and a plurality of support arm pin holes 111 are provided on the outer wall of the first support arm 105, and correspondingly, a plurality of support arm pin columns 209 corresponding to the support arm pin holes 111 are provided at the bottom of the first support arm pressure cover portion 202.

[0046] Since in actual connection, the length of the first conductor 5 is greater than that of the second conductor 6, the lengths of the first support arm 105 and the first support arm pressure cover portion 201 that guide the first conductor 5 are longer. The structure of positioning and snapping the support arm pin 209 and the support arm pin hole 111 of this embodiment can effectively improve the assembly efficiency between the first support arm 105 and the first support arm pressure cover portion 202.

[0047] It should be further explained that, in this embodiment, the first arm 105 and the first arm pressure cover part 202, and the second arm 106 and the second arm pressure cover part 203 can insulate the non-electrical connection parts of the first conductor 5 and the second conductor 6, thereby better realizing safe electrical connection.

[0048] like Figure 3 As shown, the first conductor 5 is L-shaped, and correspondingly, a first conductor extending groove 112 for the first conductor 5 to extend out is opened on the side of the first conductor guiding groove 107 facing the second arm 106 .

[0049] In this embodiment, the first conductor 5 is arranged in an L shape toward the second conductor 6, which can ensure that the connection between the first conductor 5 and the second conductor 6 and the first busbar copper bar 18 and the second busbar copper bar 19 is on the same axis, thereby saving space and being easier to install.

[0050] like Figure 5 As shown, it should be noted that, in this embodiment, in order to ensure that the electrical connection between the first conductor 5 and the second conductor 6 is horizontal during connection, and the first conductor 5 needs to span the first busbar copper bar 18, the remaining part of the first conductor 5 is higher than the second conductor 6.

[0051] In this embodiment, the conductor and the busbar copper bar can be connected by screw connection. Specifically, a conductor connection hole 7 is provided at the outer end of the first conductor 5 and the second conductor 6; a busbar connection hole (not marked in the figure) is provided on the first busbar copper bar 18 and the second busbar copper bar 19, and the two conductor connection holes 7 are connected to the two busbar connection holes by a busbar screw 21, so as to realize a stable electrical connection between the device and the busbar copper bar in the functional module 16.

[0052] like Figure 3 and Figure 4 As shown, in this embodiment, the first conductive wiring assembly 3 and the second conductive wiring assembly 4 have the same specifications and both include a U-shaped socket 10, a locking screw seat 11 is provided at the port of the U-shaped socket 10, and a conductor wiring cavity 12 is formed between the lower side of the locking screw seat 11 and the U-shaped socket 10; a locking threaded hole 13 matching the first locking screw 8 or the second locking screw 9 is provided on the locking screw seat 11, and the first locking screw 8 or the second locking screw 9 is screwed together to achieve crimping of its end to the conductor in the conductor wiring cavity 12.

[0053] As a specific embodiment of the present scheme, one end of the first conductor 5 is placed in the conductor wiring cavity 12, and the external wiring conductor is placed in the conductor wiring cavity 12 through the first wiring groove 103. At this time, the first conductor 5 is located above the external wiring conductor, and then by tightening the first locking screw 8, the end of the first locking screw 8 presses the first conductor 5 and the external wiring conductor downward together.

[0054] As a further explanation of the present solution, the first conductor 5 is located above the external wiring conductor because the first conductor 5 is preset to adopt a copper bar structure, and its upper surface can act well on the end of the first locking screw 8. There are many possibilities for the external wiring conductor, such as a conductive copper bar or a conductive copper wire. When a conductive copper wire is used, if it is placed on the upper side of the first conductor 5, it cannot form a good crimping when the first locking screw 8 is tightened.

[0055] In addition, symmetrical socket through grooves 14 are provided on both sides of the U-shaped socket 10, and correspondingly, locking screw seat wings 15 are provided on both sides of the locking screw seat 11 for the socket through grooves 14 to flexibly clamp. This structure can ensure the elastic connection between the locking screw seat 11, the U-shaped socket 10, and the first locking screw 8 or the second locking screw 9, thereby better realizing the crimping of the conductor without causing damage to the mechanism due to excessive force, such as deformation, breakage, etc.

[0056] The above description is only for illustrating the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The functional module external reversing terminal for servo drive is characterized by: The terminal base (1) comprises a first slot (101) and a second slot (102) in which a first conductive wiring assembly (3) and a second conductive wiring assembly (4) are inserted, and a first wiring through slot (103) and a second wiring through slot (104) in communication with the outside are respectively provided along one side of the first slot (101) and the second slot (102); A first arm (105) and a second arm (106) are provided on one side of the terminal base; a first conductor guide groove (107) leading to the first slot (101) is provided on the first arm (105); a second conductor guide groove (108) leading to the second slot (102) is provided on the second arm (106); correspondingly, a first conductor (5) is provided in the first conductor guide groove (107), and a second conductor (6) is provided in the second conductor guide groove (108); one end of the first conductor (5) is connected to the first conductive wiring assembly (3), and the other end protrudes from the first conductor guide groove (107); The terminal base (1) further comprises a terminal cover (2) arranged on the upper side of the terminal base, the terminal cover (2) comprising a terminal base cover portion (201) matching the terminal base (1), a first arm cover portion (202) matching the first arm (105), and a second arm cover portion (203) matching the second arm (106); a first locking threaded hole (204) and a second locking threaded hole (205) corresponding to the first slot (101) and the second slot (102) are provided in the terminal base cover portion (201); a first locking screw (8) is used to press the first conductive wiring assembly (3) through the first locking threaded hole (204), and a second locking screw (9) is used to press the second conductive wiring assembly (4) through the second locking threaded hole (205).

2. The functional module external reversing terminal for a servo drive according to claim 1, characterized in that: A hidden groove (206) is provided on the terminal base cover portion (201) of the terminal cover (2), and the first locking threaded hole (204) and the second locking threaded hole (205) are both arranged in the hidden groove (206); a terminal base flap (207) corresponding to the hidden groove (206) is provided on the hidden groove (206), and the terminal base flap (207) is movably connected to a group of inner walls of the hidden groove (206).

3. The functional module external reversing terminal for a servo drive according to claim 2, characterized in that: A partition plate (109) is provided between the first slot (101) and the second slot (102).

4. The functional module external reversing terminal for a servo drive according to claim 1, characterized in that: A plurality of terminal seat slots (110) are provided along the inner wall of the terminal base (1), and correspondingly, a plurality of terminal seat buckles (208) corresponding to the terminal seat slots (110) are provided on the outer wall of the terminal gland (2).

5. The functional module external reversing terminal for a servo drive according to claim 1 or 4, characterized in that: The length of the first support arm (105) is greater than the length of the second support arm (106); correspondingly, the length of the first support arm pressure cover portion (202) is greater than the length of the second support arm pressure cover portion (203).

6. The functional module external reversing terminal for a servo drive according to claim 5, characterized in that: A plurality of support arm pin holes (111) are provided on the outer wall of the first support arm (105), and correspondingly, a plurality of support arm pin columns (209) corresponding to the support arm pin holes (111) are provided on the bottom of the first support arm pressure cover portion (202).

7. The functional module external reversing terminal for a servo drive according to claim 5, characterized in that: The first conductor (5) is L-shaped, and correspondingly, a first conductor extension groove (112) for the first conductor (5) to extend is provided on a side of the first conductor guide groove (107) facing the second support arm (106).

8. The functional module external reversing terminal for a servo drive according to claim 7, characterized in that: Conductor connection holes (7) are provided at the outer ends of the first conductor (5) and the second conductor (6).

9. The functional module external reversing terminal for a servo drive according to claim 1, characterized in that: The first conductive wiring assembly (3) and the second conductive wiring assembly (4) have the same specifications and both include a U-shaped socket (10). A locking screw seat (11) is provided at the end of the U-shaped socket (10). A conductor wiring cavity (12) is formed between the lower side of the locking screw seat (11) and the U-shaped socket (10). The locking screw seat (11) is provided with a locking threaded hole (13) matching the first locking screw (8) or the second locking screw (9). The first locking screw (8) or the second locking screw (9) is screwed together to achieve crimping of its end portion to the conductor in the conductor wiring cavity (12).

10. The functional module external reversing terminal for a servo drive according to claim 9, characterized in that: Mutually symmetrical socket through grooves (14) are provided on both sides of the U-shaped socket (10), and correspondingly, locking screw seat wings (15) are provided on both sides of the locking screw seat (11) for movably clamping the socket through grooves (14).

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