Servo drive device and servo system

Abstract

The utility model discloses a servo driving device and a servo system, and relates to the automation technology field, the servo driving device comprises a mounting support, a circuit board and a heat radiation fan, the mounting support is provided with a heat radiation air channel; the circuit board is arranged on the mounting bracket and is provided with a fan interface; the cooling fan is arranged in the cooling air channel of the installation support and electrically connected with the fan interface through a wire, the installation support is provided with a wiring structure used for limiting and installing the wire, and the wiring structure and the installation support are integrally formed. According to the technical scheme, the wiring structure and the mounting support are integrally formed, connecting parts of supporting parts such as the wiring structure and the mounting support can be reduced, the structure of the servo driving device is simplified, and the wiring structure and the mounting support are integrally formed, so that mounting steps and mounting time can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automation, and particularly relates to a servo drive device and a servo system. Background Art

[0002] Servo drive devices are widely used in industrial automation to achieve precise control and efficient operation. To ensure the heat dissipation effect of the servo drive device, a cooling fan is usually installed inside it. However, the existing lead positioning structure of the cooling fan is complex, resulting in high production and maintenance costs. The complex positioning structure not only increases the manufacturing cost, but also makes the assembly and repair processes cumbersome, thus affecting the production efficiency. Summary of the Utility Model

[0003] The main object of the utility model is to propose a servo drive device and a servo system, aiming to simplify the structure of the servo drive device.

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

[0005] An installation bracket having a heat dissipation air duct;

[0006] A circuit board disposed on the installation bracket, the circuit board having a fan interface; and

[0007] A cooling fan disposed in the heat dissipation air duct of the installation bracket, the cooling fan being electrically connected to the fan interface through a wire, and the installation bracket being provided with a wiring structure for limiting and installing the wire; the wiring structure is integrally formed with the installation bracket.

[0008] In one embodiment, the installation bracket includes a base and a plurality of connecting members. One end of the connecting member is connected to the base, and the connecting member extends away from the base in a direction away from the base. The circuit board is respectively connected to the connecting member and the base, and the wiring structure is integrally formed with the base.

[0009] In one embodiment, the base includes a bottom plate, a side plate, and a baffle. The side plate is respectively connected to the bottom plate and the baffle. The bottom plate, the side plate, and the baffle enclose the heat dissipation air duct. The cooling fan is disposed on one side of the side plate and is located between the bottom plate and the baffle;

[0010] The connecting member is connected to the baffle, and the connecting member extends away from the bottom plate in a direction away from the connection with the baffle. The wiring structure is disposed on the baffle and is integrally formed with the baffle.

[0011] In one embodiment, the wiring structure includes a plurality of first limiting members and a plurality of second limiting members respectively disposed on two sides of the extending direction of the wire, and the plurality of first limiting members and the plurality of second limiting members are arranged in a staggered manner along the extending direction of the wire.

[0012] In one embodiment, the first limiting member is a limiting block, the second limiting member is a limiting buckle, the second limiting member includes a first limiting portion and a second limiting portion connected by bending, the first limiting portion is connected to the base, and the second limiting portion is bent toward one side of the limiting block.

[0013] In one embodiment, the second limiting member is disposed on one side of the wire close to the edge of the baffle.

[0014] In one embodiment, the included angle between the first limiting portion and the second limiting portion is not less than 90° and not greater than 110°.

[0015] In one embodiment, the baffle is provided with a through wire groove, the wire passes through the wire groove, and the wire groove is located on one side of the first limiting member close to the heat dissipation fan, or the wire groove is located on one side of the first limiting member close to the fan interface.

[0016] In one embodiment, the plurality of connecting members at least include a first connecting member, a second connecting member and a third connecting member arranged at intervals along the extending direction of the baffle; the first connecting member, the second connecting member and the third connecting member respectively form a distance from the circuit board, and the wire passes through at least one of the distances.

[0017] The present utility model also proposes a servo system, and the servo system includes the servo drive device described in any one of the foregoing embodiments.

[0018] By integrally forming the wiring structure and the mounting bracket, the technical solution of the present utility model can reduce the connecting components of the wiring structure and the mounting bracket and other supporting components, simplify the structure of the servo drive device, and the integral forming of the wiring structure and the mounting bracket can reduce the installation steps and time. The technical solution of the present utility model has a simple structure, low manufacturing cost and convenient installation. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on the structures shown in these drawings without creative efforts.

[0020] Figure 1Schematic diagram of a structure of an embodiment of the servo drive device provided by the present utility model;

[0021] Figure 2 It is Figure 1 Schematic diagram of a structure of an embodiment after hiding the housing and the front frame;

[0022] Figure 3 It is Figure 2 Schematic diagram of a structure of an embodiment after hiding the circuit board and the cooling fan;

[0023] Figure 4 It is Figure 3 Another side view of;

[0024] Figure 5 It is Figure 4 Enlarged view of part A in;

[0025] Explanation of reference numerals in the drawings:

[0026] 10. Servo drive device;

[0027] 100. Device main body;

[0028] 110. Housing;

[0029] 120. Front frame; 121. Battery compartment; 122. Compartment opening;

[0030] 130. Mounting bracket; 131. Base; 131a. Bottom plate; 131b. Side plate; 131c. Baffle; 131d. Wire groove; 132. Connecting piece;

[0031] 140. Wiring structure; 141. First limiting member; 142. Second limiting member; 142b. First limiting portion; 142b. Second limiting portion;

[0032] 200. Cover body;

[0033] 400. Circuit board; 401. Fan interface;

[0034] 500. Cooling fan; 510. Wire.

[0035] The realization, functional features and advantages of the object of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0036] 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope protected by the present utility model.

[0037] 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.

[0038] In addition, if there are descriptions involving "first", "second", etc. 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 where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. 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.

[0039] In a servo drive device, a fan is often used for heat dissipation by air cooling. The fan will have a wire connected to the circuit board end, and the wire often needs to be positioned inside the machine. On the one hand, it is to prevent the lead wires from being arranged randomly inside and causing unexpected risks due to bumping against other components. On the other hand, it is also to cope with various vibration scenarios. The existing fixing methods for the fan lead wires usually adopt wire bundling fixation or pressing plate fixation, etc. The positioning structure of the heat dissipation fan lead wires is complex, resulting in higher production and maintenance costs. The complex positioning structure not only increases the manufacturing cost but also makes the assembly and repair processes cumbersome, thus affecting the production efficiency.

[0040] The present utility model proposes a servo drive device, aiming to simplify the structure of the servo drive device.

[0041] Please refer to Figures 1 to 5, in an embodiment of the present utility model, the servo drive device 10 includes a mounting bracket 130, a circuit board 400, and a cooling fan 500. The mounting bracket 130 has a cooling air duct; the circuit board 400 is disposed on the mounting bracket 130, and the circuit board 400 has a fan interface 401; the cooling fan 500 is disposed in the cooling air duct of the mounting bracket 130, and the cooling fan 500 is electrically connected to the fan interface 401 through a wire 510. The mounting bracket 130 is provided with a wiring structure 140 for limiting and installing the wire 510; the wiring structure 140 is integrally formed with the mounting bracket 130.

[0042] Among them, the wiring structure 140 is used to limit and install the wire 510. In this embodiment, the wire 510 is limited by the wiring structure 140 so that the wire 510 remains stable during installation and use, preventing it from shifting due to vibration, impact or other external forces, and preventing the wire 510 from accidentally contacting other electrical components or the metal housing 110, avoiding safety accidents such as short circuits and electric shocks, etc. The specific structure of the wiring structure 140 will be described in detail later.

[0043] The technical solution of the present utility model can reduce the connecting components of the supporting components such as the wiring structure 140 and the mounting bracket 130 by integrally forming the wiring structure 140 and the mounting bracket 130, simplifying the structure of the servo drive device 10. The integral forming of the wiring structure 140 and the mounting bracket 130 can reduce the installation steps and time. Installers do not need to separately handle the wiring and the bracket, and can complete the overall installation at one time, saving labor and time costs. The technical solution of the present utility model has a simple structure, low manufacturing cost and is convenient for installation.

[0044] In addition, integrating the wiring structure 140 and the mounting bracket 130 can reduce the risk of errors and failures during the assembly process. The integral forming of the wiring structure 140 and the mounting bracket 130 can more accurately predict and control the position and installation method of the wiring, reducing problems caused by misoperation or incorrect installation. The integral forming of the wiring structure 140 and the mounting bracket 130 can usually provide a neater and more beautiful appearance, not only saving space, but also avoiding a messy wiring appearance.

[0045] It should be understood that in this embodiment, the integral forming of the wiring structure 140 and the mounting bracket 130 is intended to manufacture an integral structure through single processing or a combination of various processing methods. The ways of integrally forming the wiring structure 140 and the mounting bracket 130 include but are not limited to die casting, injection molding, 3D printing, etc. Among them, in this embodiment, injection molding is preferably used. The principle of injection molding is: injecting the heated and melted plastic raw material into the mold, and taking out the finished product after cooling and shaping. Injection molding is widely used in manufacturing plastic products with complex shapes, such as automotive parts, electronic product housings 110, etc.

[0046] The specific structure of the servo drive device 10 will be described in detail below.

[0047] In this embodiment, the servo drive device 10 includes a device main body 100 and a panel assembly. The main structure of the device main body 100 includes a mounting bracket 130, a housing 110, a front shell, a circuit board 400, etc. The panel assembly includes components such as a panel, a display, operation buttons or indicator lights that provide a user operation and monitoring interface. The above main structures will be introduced in detail below.

[0048] The mounting bracket 130 provides a stable mounting foundation to fix the servo drive device 10 in a cabinet or equipment. The mounting bracket 130 is usually fixed to the bottom or side of the housing 110 and fixed by screws or snaps to make the device stable. The housing 110 is usually used to protect internal electronic components, provide structural support, and has heat dissipation and electromagnetic shielding functions. The housing 110 is connected to the mounting bracket 130 by screws or snaps and fixed in the mounting position. The front part of the housing 110 is usually designed with a position for mounting the front shell. The front shell is fixed to the housing 110 by screws or snaps. The front shell mainly provides structural support. Components such as a panel, a display, operation buttons or indicator lights that provide a user operation and monitoring interface are mounted on the front shell. In addition, the display and operation buttons on the front shell are connected to the internal circuit board 400 through connecting wires or connectors to achieve signal transmission. The circuit board 400 includes a control circuit, a drive circuit, a feedback circuit, a communication circuit, etc., and performs signal processing and drive control; the circuit board 400 is usually mounted on the mounting bracket 130 and connected to the power supply through connecting wires or sockets.

[0049] Please refer to FIGS. 3 and Figure 4 , in one embodiment, the mounting bracket 130 includes a base 131 and a plurality of connecting members 132. One end of the connecting member 132 is connected to the base 131, and the connecting member 132 extends away from the base 131 from its connection with the base 131. The circuit board 400 is respectively connected to the connecting member 132 and the base 131. The base 131 forms the heat dissipation air duct, and the wiring structure 140 is integrally formed with the base 131.

[0050] In this embodiment, the base 131 and the plurality of connecting members 132 may be integrally formed or separately provided. Preferably, the base 131 and the plurality of connecting members 132 may be integrally formed, so that the structure of the mounting bracket 130 can be simplified, and thus the structure of the servo drive device 10 can be simplified to a certain extent.

[0051] Based on the previous embodiment, please continue to refer to FIGS. 3 and Figure 4, the base 131 includes a bottom plate 131a, side plates 131b, and a baffle 131c. The side plates 131b are respectively connected to the bottom plate 131a and the baffle 131c. The bottom plate 131a, the side plates 131b, and the baffle 131c enclose the heat dissipation air duct. The heat dissipation fan 500 is disposed on one side of the side plate 131b and is located between the bottom plate 131a and the baffle 131c. The connecting member 132 is connected to the baffle 131c and extends away from the bottom plate 131a from its connection with the baffle 131c. The wiring structure 140 is disposed on the baffle 131c and is integrally formed with the baffle 131c.

[0052] Among them, the wiring structure 140 can be disposed on the side of the baffle 131c close to the bottom plate 131a, or the wiring structure 140 can be disposed on the side of the baffle 131c facing away from the bottom plate 131a. Usually, heat dissipation fins are also provided between the bottom plate 131a and the baffle 131c. Preferably, the wiring structure 140 is disposed on the side of the baffle 131c facing away from the bottom plate 131a to facilitate the installation of the wire 510.

[0053] In this embodiment, by integrally forming the wiring structure 140 with the baffle 131c, it is not necessary to add parts, and the fan power wire can also be fixed. The connecting parts between the wiring structure 140 and the supporting components such as the mounting bracket 130 can be reduced, simplifying the structure of the servo drive device 10. The integral formation of the wiring structure 140 and the mounting bracket 130 can reduce the installation steps and time. Installers do not need to separately handle the wiring and the bracket, and can complete the overall installation at one time, saving labor and time costs.

[0054] Regarding the wiring structure 140, there are many forms of the wiring structure 140. For example, a plurality of wiring openings are opened on the side of the baffle 131c facing away from the circuit board 400. An embodiment of the wiring opening can be, for example, Figure 5 the wire groove 131d shown in 131d. Of course, the wiring structure 140 can also be a plurality of limiting blocks, or a plurality of limiting buckles, or a structure composed of a plurality of wiring openings, limiting blocks, and limiting buckles.

[0055] In an exemplary embodiment, please refer to Figure 5 , the wiring structure 140 includes a plurality of first limiting members 141 and a plurality of second limiting members 142 respectively disposed on both sides of the extending direction of the wire 510. The plurality of first limiting members 141 and the plurality of second limiting members 142 are arranged in a staggered manner along the extending direction of the wire 510.

[0056] In another embodiment, the baffle 131c is provided with a through wire groove 131d, the wire 510 passes through the wire groove 131d, and the wire groove 131d is located on one side of the first limiting member 141 close to the heat dissipation fan 500, or the wire groove 131d is located on one side of the first limiting member 141 close to the fan interface 401. By routing the wire 510 through the wire groove 131d, the disassembly, installation and maintenance of the wire 510 are more convenient. The wire 510 passes through the wire groove 131d and exits, making the internal wiring more orderly, and improving the cleanliness and aesthetics inside the device.

[0057] Further, the first limiting member 141 is a limiting block, the second limiting member 142 is a limiting buckle, the second limiting member 142 includes a first limiting portion 142b and a second limiting portion 142b which are bent and connected, the first limiting portion 142b is connected to the base 131, and the second limiting portion 142b is bent towards the side of the limiting block. The limiting block and the limiting buckle are used in cooperation, and at the same time, the wire 510 is not easily detached, and it is convenient for installation and disassembly, which can reduce the maintenance time and improve the work efficiency.

[0058] Preferably, the second limiting member 142 is arranged on one side of the wire 510 close to the edge of the baffle 131c. Since the second limiting member 142 is a limiting buckle, with such an arrangement, the wire 510 is not easily detached during transportation.

[0059] In one embodiment, in order to facilitate the installation of the wire 510 into the wiring structure 140 and prevent the wire 510 from falling off easily, the included angle between the first limiting portion 142b and the second limiting portion 142b is not less than 90° and not greater than 110°. The included angle between the first limiting portion 142b and the second limiting portion 142b includes, but is not limited to, 90°, 91°, 92°, 93°, 94°, 95°, 96°, 97°, 98°, 99°, 100°, 101°, 102°, 103°, 104°, 105°, 106°, 107°, 108°, 109° or 110°.

[0060] In one embodiment, several of the connecting members 132 at least include a first connecting member 132, a second connecting member 132 and a third connecting member 132 which are arranged at intervals along the extending direction of the baffle 131c; the first connecting member 132, the second connecting member 132 and the third connecting member 132 respectively form a distance from the circuit board 400, and the wire 510 passes through at least one of the distances. Thus, in this embodiment, by arranging the wire 510 between the connecting member 132 and the circuit board 400, the connecting member 132 and the circuit board 400 also play a role in limiting the wire 510, thereby further simplifying the wiring structure 140 of the heat dissipation fan 500, and further simplifying the structure of the servo drive device 10.

[0061] The present utility model also provides a servo system, which includes a servo drive device 10. The specific structure of the servo drive device 10 refers to the above embodiments. Since this servo system adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here. Due to its high precision, high response speed and high reliability, the servo system is widely used in industrial automation (such as numerical control machine tools, automated production lines, packaging machinery, etc.), robots (such as industrial robots, service robots, medical robots, etc.), aerospace (such as aircraft attitude control, satellite antenna control, etc.) and precision instruments (such as microscope autofocus systems, optical equipment, etc.).

[0062] Among them, the core components of the servo system include a servo drive device 10, a servo motor and a feedback device (such as an encoder). The following is a detailed introduction to the servo system.

[0063] The servo drive device 10 generally includes a control module, a power module, a feedback module and a communication interface. The servo drive device 10 receives command signals from the control system, processes them and generates current or voltage signals to control the operation of the servo motor.

[0064] The servo motor performs precise rotational or linear motion according to the commands of the servo drive device 10. Common servo motors include AC servo motors, DC servo motors and stepper motors.

[0065] The feedback device feeds back information such as the actual position, speed or torque of the motor to the servo drive device 10 to achieve closed-loop control. Common feedback devices include incremental encoders, absolute encoders and resolvers.

[0066] The working principle of the servo system: The servo system generally adopts the closed-loop control principle and continuously adjusts the operating state of the motor to achieve the expected control target. Its working process is as follows:

[0067] Input of command signal: The control system (such as a PLC or a host computer) sends control signals (position, speed or torque commands) to the servo drive device 10.

[0068] Generation of drive signal: The servo drive device 10 calculates the required drive current or voltage according to the command signal and outputs it to the servo motor.

[0069] Execution of motor movement: The servo motor performs corresponding movement tasks (rotational or linear motion) according to the drive signal.

[0070] Obtaining of feedback signal: The feedback device measures the actual movement state of the motor and feeds this data back to the servo drive device 10.

[0071] Closed-loop control adjustment: The servo drive device 10 adjusts the drive signal in real time according to the difference between the feedback signal and the command signal, so as to improve the motion accuracy and response speed of the motor.

[0072] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A servo drive device, characterized in that: include: Mounting bracket with heat dissipation duct; A circuit board, arranged on the mounting bracket, wherein the circuit board has a fan interface; as well as A cooling fan is arranged in the cooling air duct of the mounting bracket. The cooling fan is electrically connected to the fan interface through a wire. The mounting bracket is provided with a wiring structure for limiting the installation of the wire. The wiring structure is integrally formed with the mounting bracket.

2. The servo drive device according to claim 1, characterized in that: The mounting bracket includes a base and a plurality of connecting parts, one end of the connecting part is connected to the base, the connecting part is extended from the connection between the connecting part and the base in a direction away from the base, the circuit board is respectively connected to the connecting part and the base, the base forms the heat dissipation duct, and the wiring structure is integrally formed with the base.

3. The servo drive device according to claim 2, characterized in that: The base comprises a bottom plate, a side plate and a baffle, the side plates are respectively connected to the bottom plate and the baffle, the bottom plate, the side plates and the baffle surround the heat dissipation duct, and the heat dissipation fan is arranged on one side of the side plate and is located between the bottom plate and the baffle; The connecting member is connected to the baffle, and the connecting member is extended from the connection between the connecting member and the baffle in a direction away from the bottom plate. The wiring structure is arranged on the baffle and is integrally formed with the baffle.

4. The servo drive device according to claim 3, characterized in that: The wiring structure includes a plurality of first limiting members and a plurality of second limiting members respectively arranged on both sides of the extending direction of the wire, and the plurality of first limiting members and the plurality of second limiting members are staggeredly arranged along the extending direction of the wire.

5. The servo drive device according to claim 4, characterized in that: The first limiting member is a limiting block, the second limiting member is a limiting buckle, the second limiting member includes a first limiting portion and a second limiting portion that are bent and connected, the first limiting portion is connected to the base, and the second limiting portion is bent toward one side of the limiting block.

6. The servo drive device according to claim 5, characterized in that: The second limiting member is arranged on a side of the wire close to an edge of the baffle.

7. The servo drive device according to claim 5, characterized in that: An included angle between the first limiting portion and the second limiting portion is not less than 90° and not more than 110°.

8. The servo drive device according to claim 5, characterized in that: The baffle is provided with a through wire groove, and the wire passes through the wire groove; the wire groove is located on a side of the first limiting member close to the cooling fan, or the wire groove is located on a side of the first limiting member close to the fan interface.

9. The servo drive device according to claim 8, characterized in that: The plurality of connectors include at least a first connector, a second connector and a third connector arranged at intervals along the extension direction of the baffle; the first connector, the second connector and the third connector respectively form intervals with the circuit board, and the wire passes through at least one of the intervals.

10. A servo system, characterized in that: The invention comprises a servo drive device as claimed in any one of claims 1 to 9.

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