Multi-axis servo driving device and driver

Abstract

The utility model discloses a multi-shaft servo driving device and drivers, and relates to the technical field of electric connectors, the multi-shaft servo driving device comprises a plurality of drivers, and the plurality of drivers are arranged side by side along a first direction; each driver is provided with a circuit board and an integrated connector, the integrated connector comprises a control power supply terminal, a main loop power supply terminal and an insulating partition plate arranged between the control power supply terminal and the main loop power supply terminal, and the control power supply terminal and the main loop power supply terminal are respectively welded on the circuit board; the control power supply terminals of two adjacent drivers are connected through a first copper bar, and the main loop power supply terminals of two adjacent drivers are connected through a second copper bar. The utility model relates to an electric connector, which is convenient to assemble, connect and use, avoids the problems of infirm wiring and easy falling of wiring caused by additional arrangement of an external wiring harness for connection, prevents power failure, effectively improves the stability of electric connection, and optimizes the stability and safety of products.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connectors, and particularly relates to a multi-axis servo drive device and a driver. Background Art

[0002] With the continuous development of industrial technology, higher requirements are put forward for the integrated design and power density of industrial equipment. Due to the increasingly small installation space and higher compactness requirements, the thin, light and compact design of the drive device is particularly important. However, in most traditional multi-axis servo drive devices, the connection between multiple drivers is mostly achieved by connecting the power busbars with copper bars, while the control busbars need to be connected by external wire harnesses. The connection between the drivers is relatively independent and scattered, resulting in inconvenient connection. In the way of connecting with external wire harnesses, since more space is required for arranging and placing the wire harnesses, it will also cause the overall occupied space of the driver to be large. Coupled with the independent and scattered arrangement of the drivers, the wiring is prone to be loose and fall off during wiring, resulting in DC power failure and affecting the stability and safety of the product. Summary of the Utility Model

[0003] The main object of the utility model is to propose a multi-axis servo drive device and a driver, aiming to solve the problems of large occupied space caused by the need to additionally set external wire harness connections and the influence on the stability and safety of the product due to insecure connections.

[0004] To achieve the above object, a multi-axis servo drive device proposed by the utility model includes:

[0005] A plurality of drivers arranged side by side along a first direction;

[0006] Each driver has a circuit board and an integrated connector. The integrated connector includes a control power terminal, a main circuit power terminal, and an insulating partition arranged between the control power terminal and the main circuit power terminal. The control power terminal and the main circuit power terminal are respectively welded to the circuit board.

[0007] The control power terminals of two adjacent drivers are connected by a first copper bar, and the main circuit power terminals of two adjacent drivers are connected by a second copper bar.

[0008] In an embodiment, the control power terminal includes a first terminal and a second terminal arranged at intervals along the first direction. Two ends of the first copper bar are respectively connected to the first terminal of one driver and the second terminal of the adjacent other driver;

[0009] The main circuit power terminal includes a first terminal and a second terminal arranged at intervals along the first direction. Two ends of the second copper bar are respectively connected to the first terminal of one driver and the second terminal of the adjacent other driver.

[0010] In one embodiment, the integrated connector is provided with two sets of control power terminals, and the two sets of control power terminals are arranged at intervals along the second direction and separated from each other by a first partition board.

[0011] The integrated connector is provided with two sets of main circuit power terminals, and the two sets of control power terminals are arranged at intervals along the second direction and separated from each other by a second partition board.

[0012] In one embodiment, the second partition board is provided with an isolation groove.

[0013] In one embodiment, one end of the copper bar is provided with a through hole for being locked on the terminal by a first screw; the other end of the copper bar is provided with a notch for being locked on the terminal by a second screw.

[0014] In one embodiment, the insulating partition board is provided with an isolation groove.

[0015] The present utility model further provides a driver for the above-mentioned multi-axis servo drive device. In one embodiment, the driver includes:

[0016] A main body;

[0017] A circuit board and an integrated connector, the integrated connector is welded on the circuit board and installed in the main body through the circuit board, and the main body is provided with an opening corresponding to the position of the integrated connector;

[0018] A flip cover is arranged on the main body, and the flip cover is movable between an open position for opening the opening and a closed position for closing the opening.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] The multiple drivers of the multi-axis servo drive device of the present utility model are arranged side by side along the first direction to avoid the problems of large occupied space and inconvenient connection caused by the independent and scattered arrangement of the drivers;

[0021] For the convenience of the assembly, connection and use of multiple drivers, the control power terminals of two adjacent drivers are connected by a first copper bar, and the main circuit power terminals of two adjacent drivers are connected by a second copper bar, avoiding the problems of insecure wiring and easy falling off of the wiring caused by the need to additionally arrange external wiring harnesses, preventing power failure, effectively improving the stability of the electrical connection, and further optimizing the stability and safety of the product. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 Schematic diagram of the structure of an embodiment of the multi-axis servo drive device provided by the present invention;

[0024] Figure 2 For Figure 1 Cross-sectional view at A-A in

[0025] Figure 3 Partial structure disassembly and assembly diagram of an embodiment of the multi-axis servo drive device provided by the present invention;

[0026] Figure 4 Partial structure schematic diagram of an embodiment of the driver provided by the present invention.

[0027] Explanation of the reference numerals in the drawings:

[0028] 10. Driver;

[0029] 100. Integrated connector; 101. Control power terminal; 102. Main circuit power terminal; 110. Insulating partition; 1101. Isolation groove; 120. First partition; 130. Second partition; 1301. Isolation groove;

[0030] 141. Welding leg; 142. Positioning post;

[0031] 200. Circuit board;

[0032] 301. Through hole; 302. Notch; 310. First copper bar; 320. Second copper bar;

[0033] 410. Main body; 4101. Opening; 420. Flap.

[0034] The realization of the objectives, functional features, and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] To solve the problem that the control bus of the existing driver needs to be connected by external wiring harnesses, and the drivers are relatively independent and scattered from each other, resulting in easy loosening and falling off of the wiring during wiring, causing DC power failure and affecting the stability and safety of the product. Referring to Figures 1 to 4 , the present utility model provides a multi-axis servo drive device and a driver.

[0039] Among them, the multi-axis servo drive device includes a plurality of drivers 10. To avoid the problems of large occupied space and inconvenient connection caused by the independent and scattered arrangement of the drivers 10, in the embodiments of the present utility model, the plurality of drivers 10 are arranged side by side in the first direction.

[0040] Each driver has a circuit board 200 and an integrated connector 100. The integrated connector 100 includes a control power terminal 101 and / or a main circuit power terminal 102. The control power terminal 101 is used to connect the control bus of multiple drivers 10, and the main circuit power terminal 102 is used to connect the power bus of multiple drivers 10. In a driver equipped with a power module, the main circuit terminal is connected to the control power terminal through a voltage conversion circuit.

[0041] In the related art, the power terminals of a driver are generally set as a single-row terminal assembly with a row of terminals or a double-row terminal assembly with two rows of terminals. Taking the existing single-row terminal assembly as an example, when single-row welding terminals are used at the port, the connection between drive devices will result in stacked installation, and a stepped copper bar needs to be used for connection. However, because the installation of this copper bar is relatively complex and has high requirements for the disassembly and assembly sequence, if the installation is not carried out strictly in accordance with the disassembly and assembly sequence, it is very easy to have installation misalignment and machine deformation caused by the installation misalignment. Taking the existing double-row terminal assembly as an example, when double-row welding terminals are used at the port, the terminal assembly is exposed outside the drive device. Considering the insulation withstand voltage requirements, the layout between terminals needs to be large enough, and an additional terminal circuit board is required for terminal installation. The terminal layout occupies a large space. Although the disassembly and assembly between drive devices can be achieved using a flat copper bar, since the control power terminal and the main circuit power terminal are separately arranged, the main circuit power terminal for connecting the power bus can be set as a double-row terminal assembly, while the control power terminal for connecting the control bus is generally arranged separately, and a separately provided wire harness is required to connect the control bus and the power bus. This not only has safety problems such as unstable wire connection and easy detachment, but also easily causes a large amount of space waste and increases the processing and manufacturing cost, bringing inconvenience to users.

[0042] Based on the strict requirements for disassembly and assembly connection in single-row connection, and the possible space waste, unstable wire connection, and easy detachment safety problems that may occur in double-row connection due to the need for an additional wire harness connection, in some embodiments of the present invention, the integrated connector 100 includes a control power terminal 101 and a main circuit power terminal 102, and the control power terminal 101 and the main circuit power terminal 102 are connected to each other as a whole.

[0043] To ensure that the overall layout of multiple drivers 10 is more compact and reduce the hardware layout area, in one embodiment, the control power terminal 101 and the main circuit power terminal 102 are arranged on the same side of the driver 10.

[0044] Specifically, in the embodiment of the present utility model, the integrated connector 100 includes a control power terminal 101, a main circuit power terminal 102, and an insulating partition 110 disposed between the control power terminal 101 and the main circuit power terminal 102. The control power terminal and the main circuit power terminal are respectively welded to the circuit board.

[0045] It can be understood that the positions of the integrated connectors 100 of two adjacent drivers 10 correspond to each other to avoid the problem of inconvenient connection caused by the misalignment of the integrated connectors 100, and to further reduce the occupied space of the multi-axis servo drive device.

[0046] The control power terminal 101 and the main circuit power terminal 102 are connected to each other as an integral structure. An integrated connector 100 having a control power terminal 101 and a main circuit power terminal 102 is respectively provided for each driver 10, which can reduce the setting of the connection structure for connecting the power bus and the control bus, and avoid the problems of large occupied space, high cost, and insecure connection caused by the need to separately set up wiring harnesses. Such a setting can also be used to avoid the problems of large occupied space and inconvenient connection that may occur when the two are separately arranged and need to be respectively connected to different sides of the driver 10, so as to further reduce the occupied space, and improve the stability and safety of the multi-axis servo drive device, and facilitate assembly and use.

[0047] Connecting the control power terminal 101 and the main circuit power terminal 102 to each other as an integral body, making the integrated connector 100 of the driver 10 an integral structure, can also solve the problems of space waste and large occupied space caused by the scattered layout of the power bus and the control bus. In this way, it can also ensure that the overall layout of multiple drivers 10 is more compact, so as to further reduce the hardware layout area of the multi-axis servo drive device, improve the system reliability, the firmness and aesthetics of the overall structure, facilitate the installation, debugging and maintenance of users, and reduce the overall processing cost.

[0048] The insulating partition 110 is disposed between the control power terminal 101 and the main circuit power terminal 102. The anti-interference performance is optimized through the setting of the insulating partition 110. The insulating partition 110 is optionally made of plastic or other insulating materials. Through the setting of the insulating partition 110, a safe insulation withstand voltage level is ensured. While ensuring the centralized layout of the control power terminal 101 and the main circuit power terminal 102, the stability of the connection structure of the driver 10 is strengthened, and the transmission of current is made more stable. By separating the control power terminal 101 and the main circuit power terminal 102 through the insulating partition 110, the use of other partition structures can also be reduced, effectively saving space and reducing the production and processing cost.

[0049] In one embodiment, an isolation groove 1101 is provided on the insulating partition 110. The setting of the isolation groove 1101 can be used to isolate the current, prevent crosstalk, improve the stability and safety of the electrical connection, and reduce equipment failures and potential safety hazards caused by crosstalk in a complex power environment. In this way, the heat dissipation performance can also be enhanced, the service life of the driver 10 can be extended, and the stable operation of the driver 10 can be ensured.

[0050] The control power terminals 101 of two adjacent drivers are connected by a first copper bar 310, and the main circuit power terminals of two adjacent drivers are connected by a second copper bar 320. It is convenient for assembly and connection, and can avoid problems such as loose wiring and easy detachment of the external wiring harness, and prevent power failure. In this way, the stability of the electrical connection can be effectively improved, and the stability and safety of the product can be further optimized.

[0051] Specifically, the first copper bar 310 and the second copper bar 320 can be copper bars with through holes, notches and other structures at the ends, so as to be locked on the terminals by screws. Optionally, one end of the copper bar is provided with a through hole 301 for locking on the terminal by a first screw; the other end of the copper bar is provided with a notch 302 for locking on the terminal by a second screw. The notch 302 can facilitate the disassembly and assembly between adjacent drivers. Specifically, the notch 302 can be set as a U-shaped groove or other grooves. When it is necessary to disconnect the connection between adjacent drivers, loosen the screws of all the notches 302 of the same driver, and slide the driver outwards in a form away from the notch 302 to disconnect the connection between adjacent drivers.

[0052] The multiple terminals of the shown integrated connector 100 can be specifically set as screw-type wiring terminals. When the terminals are set as screw-type wiring terminals, optionally, the control power terminal 101 is used as the first screw, and the main circuit power terminal is used as the second screw, or, a first screw and a second screw are additionally provided, which are not limited herein.

[0053] Optionally, in addition to using flat copper bars, the copper bars can also be replaced with aluminum bars or any other electrical connection structures suitable for actual use, which can be specifically set according to the actual situation and are not limited herein.

[0054] In one embodiment, the control power terminal 101 includes a first terminal and a second terminal arranged at intervals along a first direction. The two ends of the first copper bar 310 are respectively connected to the first terminal of one driver and the second terminal of another adjacent driver; the main circuit power terminal 102 includes a first terminal and a second terminal arranged at intervals along the first direction. The two ends of the second copper bar 320 are respectively connected to the first terminal of one driver and the second terminal of another adjacent driver.

[0055] It can be understood that one of the first terminal and the second terminal of the control power terminal 101 is the positive electrode and the other is the negative electrode; one of the first terminal and the second terminal of the main circuit power terminal 102 is the positive electrode and the other is the negative electrode. Taking the first terminal as the positive electrode and the second terminal as the negative electrode as an example, the positive electrode of the control power terminal 101 of one of the adjacent two drivers 10 is arranged close to the negative electrode of the control power terminal 101 of the other, and the two are connected to each other through the first copper bar 310; the positive electrode of the main circuit power terminal 102 of one of the adjacent two drivers 10 is arranged close to the negative electrode of the main circuit power terminal 102 of the other, and the two are connected to each other through the second copper bar 320.

[0056] In an embodiment, the integrated connector 100 is provided with two groups of control power terminals 101, and the two groups of control power terminals 101 are arranged at intervals in the second direction and separated from each other by the first partition 120; the integrated connector 100 is provided with two groups of main circuit power terminals 102, and the two groups of control power terminals 101 are arranged at intervals in the second direction and separated from each other by the second partition 130.

[0057] By the settings of the first partition 120 and the second partition 130, the anti-interference performance is optimized. The first partition 120 and the second partition 130 are optionally made of plastic or other insulating materials. Through the setting of the second partition 130, the safe insulation withstand voltage level is ensured. While ensuring the centralized layout of the terminals, the stability of the connection structure of the driver 10 is strengthened and the current transmission is made more stable. The two groups of control power terminals 101 are separated from each other by the first partition 120, and the two groups of main circuit power terminals 102 are separated from each other by the second partition 130. With such settings, the use of other partition structures can also be reduced, effectively saving space and reducing the production and processing costs.

[0058] It can be understood that the first direction and the second direction intersect, specifically, the first direction and the second direction are perpendicular to each other. In the present utility model, the integrated connectors 100 of two adjacent drivers 10 are in corresponding positions and connected to each other through copper bars. The connection of different drivers 10 is realized through the first copper bar 310 and the second copper bar 320, so as to simplify the connection structure and avoid the problems of easy falling off of the wire harness and poor connection stability caused by the need to additionally set up a bus wire harness connection.

[0059] To further ensure the overall compact layout of the driver 10, optimize the anti-interference performance, improve the reliability of the system and the signal transmission efficiency, the second partition 130 is provided with an isolation groove 1301. The setting of the isolation groove 1301 can be used to isolate the current, prevent crosstalk, improve the stability and safety of the electrical connection, and reduce equipment failures and potential safety hazards caused by crosstalk in a complex power environment. In this way, the heat dissipation performance can also be enhanced, the service life of the driver 10 can be extended, and the stable operation of the driver 10 can be ensured.

[0060] In some alternative embodiments of the present utility model, to further optimize the anti-interference performance and facilitate processing and installation, the longitudinal heights of the insulating partition 110, the first partition 120, and the second partition 130 are not less than the longitudinal height of the integrated connector 100. Through the arrangement of the insulating partition 110, the first partition 120, and the second partition 130, the main circuit power supply and the control power supply are separated from the strong and weak electricity, and the strong and weak electricity themselves are separated to ensure the compliance distance, so that the product has good insulation and withstand voltage capabilities.

[0061] Considering that different voltage levels correspond to different compliance distances, the insulating partition 110, the first partition 120, and the second partition 130 can be specifically set according to the actual situation, and the size of the isolation groove provided on the partition can be further set, which is not limited herein.

[0062] Optionally, each driver 10 includes a main body 410, a circuit board 200, and an integrated connector 100. The integrated connector 100 is welded to the circuit board 200 and is installed in the main body 410 through the circuit board 200. An opening 4101 is provided at the position of the main body 410 corresponding to the integrated connector 100; a flip cover 420 is provided on the main body 410, and the flip cover 420 is movable between an open position for opening the opening 4101 and a closing position for closing the opening 4101. The design of the flip cover 420 can be used to protect the integrated connector 100, and through the movable opening and closing design, it can also facilitate assembly, copper bar connection, and use.

[0063] Each integrated connector 100 of each driver 10 is provided with welding feet 141 and positioning posts 142, and the integrated connector is connected to one side of the corresponding circuit board 200 through the positioning posts 142 and the welding feet 141. The integrated connector 100 provided on the circuit board 200 is received in the main body 410 through the circuit board 200 and is exposed from the main body 410 through the opening 4101.

[0064] Taking the copper bar as a flat copper bar, with the first end of the flat copper bar being a connection hole and the second end being a notch as an example, during installation, the two ends of the first copper bar 310 are respectively connected to the first terminal of the control power supply terminal 101 of one driver and the second terminal of the control power supply terminal 101 of an adjacent another driver, and the connection of the control power supply terminals 101 of two adjacent drivers 10 can be completed by locking with the first screw. Also, the two ends of the second copper bar 320 are respectively connected to the first terminal of the main circuit power supply terminal 102 of one driver and the second terminal of the main circuit power supply terminal 102 of an adjacent another driver, and the connection of the main circuit power supply terminals 102 of two adjacent drivers 10 can be completed by locking with screws.

[0065] Refer to Figures 1 to 4, the present utility model also provides a driver for the multi-axis servo drive device in the above embodiments. The driver includes a main body 410, a circuit board 200, and an integrated connector 100. The integrated connector 100 is soldered on the circuit board 200 and installed in the main body 410 through the circuit board 200. An opening 4101 is provided at the position of the main body 410 corresponding to the integrated connector 100; a flip cover 420 is provided on the main body 410, and the flip cover 420 moves between an open position for opening the opening 4101 and a closing position for closing the opening 4101.

[0066] Among them, the integrated connector 100 includes a control power terminal 101, a main circuit power terminal 102, and an insulating partition 110 provided between the control power terminal 101 and the main circuit power terminal 102. The control power terminal and the main circuit power terminal are respectively soldered to the circuit board. The use of the integrated connector 100 can effectively reduce the occupied space of the driver 10 by reducing the use of external wire harnesses, and optimize the electrical connection stability and safety.

[0067] Optionally, welding feet 141 or other connection feet are provided on the side of the integrated connector 100, and the terminals of the integrated connector 100 are circuit-connected to the driver 10 through the welding feet 141.

[0068] Specifically, the welding feet 141 of the integrated connector 100 are circuit-connected to the circuit disposed on the circuit board 200. To further improve the connection stability, positioning posts 142 are also provided on the integrated connector 100. The positioning posts 142 are disposed close to the plurality of welding feet 141, or the positioning posts 142 are disposed between the plurality of welding feet 141. Connection positions are provided on the circuit board 200, and the connection positions are connected and adapted to the positioning posts 142. The integrated connector 100 is positioned and disposed on the circuit board 200 through the positioning posts, so that the welding feet 141 of the integrated connector 100 are stably connected to the circuit disposed on the circuit board 200, which can avoid the position deviation of the welding feet 141 and ensure the connection stability and reliability of the control bus and the power bus of the drive device.

[0069] Since this driver 10 adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, so they will not be elaborated here one by one.

[0070] The above description is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A multi-axis servo drive device, characterized in that: include: A plurality of drivers, wherein the plurality of drivers are arranged side by side along a first direction; Each of the drivers has a circuit board and an integrated connector, the integrated connector includes a control power terminal, a main circuit power terminal, and an insulating partition disposed between the control power terminal and the main circuit power terminal, the control power terminal and the main circuit power terminal are respectively welded to the circuit board; The control power terminals of two adjacent drivers are connected through a first copper busbar, and the main circuit power terminals of two adjacent drivers are connected through a second copper busbar.

2. The multi-axis servo drive device according to claim 1, characterized in that: The control power terminal comprises a first terminal and a second terminal arranged at intervals along a first direction, and two ends of the first copper bar are respectively connected to the first terminal of a driver and the second terminal of another adjacent driver; The main circuit power supply terminal comprises a first terminal and a second terminal arranged at intervals along a first direction, and two ends of the second copper bar are respectively connected to the first terminal of a driver and the second terminal of another adjacent driver.

3. The multi-axis servo drive device according to claim 1, characterized in that: The integrated connector is provided with two groups of control power terminals, the two groups of control power terminals are arranged at intervals along the second direction and are separated from each other by a first partition plate; The integrated connector is provided with two groups of main circuit power terminals, and the two groups of control power terminals are arranged at intervals along the second direction and are separated from each other by a second partition.

4. The multi-axis servo drive device according to claim 3, characterized in that: The second partition plate is provided with an isolation groove.

5. The multi-axis servo drive device according to claim 1, characterized in that: One end of the copper busbar is provided with a through hole for being screwed to the terminal by a first screw; the other end of the copper busbar is provided with a notch for being screwed to the terminal by a second screw.

6. The multi-axis servo drive device according to any one of claims 1 to 5, characterized in that: The insulating partition is provided with an isolation groove.

7. A driver for a multi-axis servo drive device according to any one of claims 1 to 6, characterized in that: The driver comprises: main body; A circuit board and an integrated connector, wherein the integrated connector is welded on the circuit board and installed in the main body through the circuit board, and the main body is provided with an opening at a position corresponding to the integrated connector; The main body is provided with a flip cover, and the flip cover moves between an open position for opening the opening and a cover position for closing the opening.

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