CN219087025U

CN219087025U - High-power servo driver

Info

Publication number: CN219087025U
Application number: CN202223181613.9U
Authority: CN
Inventors: 林辉; 徐亮
Original assignee: Changzhou Luoyuan Intelligent Technology Co ltd
Current assignee: Changzhou Luoyuan Intelligent Technology Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-05-26
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to the technical field of servo drivers, in particular to a high-power servo driver, which comprises an air duct plate, wherein a fan is connected to a first end of the air duct plate, a radiator is connected to a second end of the air duct plate, a radiating space is formed in the air duct plate and the radiator, one side of the air duct plate and one side of the radiator are configured into a circuit space, a capacitor plate is arranged in the circuit space and corresponds to the position of the air duct plate, a plurality of capacitors are uniformly arranged on the capacitor plate, and the capacitors are inserted into the air duct plate to radiate heat; the circuit space is also internally provided with a control board, a power board, a rectifying module and an inversion module, and the capacitor board, the control board, the power board, the rectifying module and the inversion module are electrically connected through a signal cable and a power copper bar. The high-power servo driver provided by the utility model has the advantages of compact structure, reasonable layout, high space utilization rate, small occupied space, convenience in replacement, maintenance and expansion, good heat dissipation performance and capability of meeting the high-power requirement.

Description

High-power servo driver

Technical Field

The utility model relates to the technical field of servo drivers, in particular to a high-power servo driver.

Background

With the continuous development of industry 4.0 and industry intellectualization, the servo driver is widely used in various fields. The servo driver is used for precisely controlling the servo motor and mainly comprises a driving part, a capacitor part, a module part and the like. The servo driver can control the motor with high precision by utilizing a complex control algorithm, so that the intelligent control of the motor is realized, and the servo driver becomes an important technical subject at present.

However, in the prior art, the driving part, the capacitor part and the module part in the servo driver are integrated on the same circuit board, and this design and construction have some adverse effects on the use of the servo driver in practical application processes, for example: because the electrical components involved in the constituent parts of the servo driver are integrated on the same circuit board, the circuit board has larger size, which leads to larger space occupied by the servo driver, in particular to a high-power servo driver; secondly, the servo power section output on the servo driver is narrow, and in general, the circuit board of the whole servo driver needs to be replaced to increase or reduce the servo power, which causes unnecessary trouble and wastes resources; more importantly, the design and construction prevents the separation of the high and low current components on the servo drive, which makes subsequent maintenance difficult.

In addition, the power unit in the servo driver is a core component for realizing the rectifying or inverting function, the performance of the power unit directly influences the performance of the servo driver, particularly a power device for high-power servo, and the heat generated during operation can cause the temperature of the device to rise above the highest temperature allowed by the device, so that the performance of the device is reduced or even damaged, and therefore, the heat dissipation performance of the power unit in the servo driver is also necessary to be improved.

Disclosure of Invention

The utility model provides a high-power servo driver, which aims to solve the technical problems of large occupied space, inconvenience in replacement, maintenance and expansion and poor heat dissipation performance of the servo driver in the prior art, and has the advantages of compact structure, small occupied space, convenience in replacement, maintenance and expansion and good heat dissipation performance.

The technical scheme of the utility model is as follows:

a high power servo driver comprising:

the fan is connected to the first end of the air duct plate, the radiator is connected to the second end of the air duct plate, a heat dissipation space is formed in the air duct plate and the radiator, and one side of the air duct plate and one side of the radiator are configured to be a circuit space;

the circuit space is internally provided with a capacitor plate, the capacitor plate is arranged at a position corresponding to the air duct plate, a plurality of capacitors are uniformly arranged on the capacitor plate, and the capacitors are inserted into the air duct plate to dissipate heat; the circuit space is also internally provided with a control board, a power board, a rectifying module and an inversion module, and the capacitor board, the control board, the power board, the rectifying module and the inversion module are electrically connected through a signal cable and a power copper bar.

Further, the radiator comprises a radiating plate and radiating fins, one side of the radiating plate is fixedly provided with the rectifying module and the inverting module, and the other side of the radiating plate is provided with the radiating fins.

Further, the high-power servo driver further comprises a shell, a guide plate is further arranged between the other side of the radiator and the shell, and a guide inclined plane extending towards the air duct plate and the inner bottom surface of the shell is formed on the guide plate.

Further, a vertical installation part is further arranged on the shell, and the radiator, the air duct plate and the fan are sequentially arranged from top to bottom after the shell is vertically installed.

Further, the fan is externally arranged on the shell.

Further, the left side and the right side in the shell are also provided with supporting pieces, the supporting pieces support the power board, and particularly, a first supporting plate is arranged on the supporting pieces, and the power board is arranged on the first supporting plate.

Further, a second supporting plate is further installed on the supporting piece, a plurality of current sensors are installed on the second supporting plate, and each current sensor corresponds to one copper bar.

Further, the first support plate and the power plate are arranged at positions corresponding to the radiator, the second support plate and the current sensor are arranged at positions corresponding to the power plate, and part of copper bars between the power plate and the radiator correspondingly pass through the current sensor after being bent twice.

Further, an upper cover is arranged on the shell, the control board is arranged on the inner side of the upper cover, and each interface of the control board protrudes to the outer side of the upper cover.

Further, two ends of the shell are respectively provided with an input terminal and an output terminal.

After the technical scheme is adopted, the high-power servo driver provided by the utility model has the following beneficial effects compared with the prior art:

1. the utility model divides the internal space of the servo driver into a heat dissipation space and a circuit space, the heat of the device with more heat generation can be rapidly dissipated in the heat dissipation space, and the circuit board, the electric module, the electric element and the like with higher requirements on the working environment can be well protected in the circuit space, the heat dissipation effect is good, and the working environment of each device is good.

2. According to the utility model, the air duct plate is arranged on one side close to the fan, and the capacitors in the capacitor plate are uniformly inserted into the air duct plate, so that the air flow directly blowing through the capacitors is cold air flow, the capacitors are efficiently radiated, the temperature of the capacitors is ensured, the performance of the capacitors is ensured, and the working stability of the whole servo driver is ensured.

3. Compared with the prior art, the utility model splits the whole circuit board into a plurality of sub-components such as the capacitor board, the control board, the power board, the rectifying module, the inversion module and the like, has small occupied space of each sub-component, can be arranged more compactly, improves the space utilization rate, can separate the strong current component from the weak current component, has no mutual interference, is convenient to maintain, and is very convenient because the corresponding components are only needed to be replaced in the subsequent power expansion.

4. Compared with the mode of arranging copper wires on a circuit board in the prior art, the power transmission in the circuit space adopts the copper bars, so that the current resistance and the heat dissipation performance are greatly improved, and the high-power requirement can be met.

5. The fan is externally arranged on the shell, and can be directly replaced without disassembling the shell once the fan fails under severe working conditions, so that the maintenance efficiency is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a high power servo driver according to the present utility model;

FIG. 2 is a schematic view of a high power servo driver (excluding a housing and a top cover) according to the present utility model at a first viewing angle;

FIG. 3 is an exploded view of the high power servo drive (excluding the housing and the cover) of the present utility model at a first viewing angle;

FIG. 4 is a schematic view of the high power servo driver (excluding the housing and the upper cover) of the present utility model at a second view angle;

FIG. 5 is a schematic view of the structure of the housing of the present utility model;

FIG. 6 is a schematic view of the structure of the housing and support of the present utility model;

fig. 7 is a side view of the high power servo drive of the present utility model (excluding the housing and the upper cover).

Wherein,,

the air duct plate 11, the jack 111, the radiator 12, the radiating plate 121, the radiating fins 122, the fan 13, the guide plate 14 and the guide inclined plane 141; the power supply device comprises a capacitor plate 21, a capacitor 211, a control plate 22, a power plate 23, a rectifying module 24, an inverting module 25, a signal cable 26, a power copper bar 27, a first support plate 28, a second support plate 29, a current sensor 291, a support insulator 292 and a switching copper bar 293; the housing 31, the vertical mounting portion 311, the support 312, the mounting hole 3121, the input terminal 313, the output terminal 314, the upper cover 32, the interface 321.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 1 to 7, the present embodiment provides a high-power servo driver including a duct board 11, a radiator 12 and a fan 13, the duct board 11, the radiator 12 and the fan 13 dividing the entire servo driver into a heat dissipation space and a circuit space.

Specifically, the first end of the air duct board 11 is connected to the fan 13, the second end of the air duct board 11 is connected to the radiator 12, that is, the air duct board 11 is located between the fan 13 and the radiator 12, the cold air flow generated by the fan 13 is blown out after passing through the air duct board 11 and the radiator 12 in sequence, the air duct board 11 and the radiator 12 are formed into a heat dissipation space for concentrated heat dissipation, and one side of the air duct board 11 is configured into a circuit space for placing a circuit board, an electrical module and other electrical components.

Specifically, a capacitor plate 21 is disposed in the circuit space, the capacitor plate 21 is disposed at a position corresponding to the air duct plate 11, for example, on the outer side of the air duct plate 11, a plurality of capacitors 211 are uniformly disposed on the capacitor plate 21 side by side, a plurality of insertion holes 111 are disposed on the air duct plate 11, and the plurality of capacitors 211 are inserted into the insertion holes 111 on the air duct plate 11 in a one-to-one correspondence manner to dissipate heat in the air duct plate 11. Further, a control board 22, a power board 23, a rectifying module 24 and an inverting module 25 are further arranged in the circuit space, the capacitor board 21, the control board 22, the power board 23, the rectifying module 24 and the inverting module 25 are electrically connected through a signal cable 26 and a power copper bar 27, that is, the small current signal transmission among the components is performed through the cable, the large current power transmission is performed through the copper bar, for example, the control board 22 and the power board 23 can be electrically connected through a flat cable, the control board 22 and the inverting module 25 can be electrically connected through a flat cable, and the rectifying module 24, the capacitor board 21 and the inverting module 25 can be electrically connected through the copper bar.

In this way, the high-power servo driver provided in this embodiment first divides the internal space of the servo driver into a heat dissipation space and a circuit space, the heat of the device with more heat generation can be rapidly dissipated in the heat dissipation space, and the circuit board, the electrical module, the electrical element and the like with higher requirements on the working environment can be well protected in the circuit space, so that the heat dissipation effect is good, and the working environment of each device is good. Secondly, in this embodiment, the air duct board 11 is disposed at a side close to the fan 13, and the capacitors 211 in the capacitor board 21 are uniformly inserted into the air duct board 11, so that the air flow directly blowing through the capacitors 211 is cold air flow, and the capacitors 211 are efficiently cooled, so that the temperature of the capacitors 211 is ensured, the performance of the capacitors 211 is ensured, and the working stability of the whole servo driver is ensured. Then, this embodiment still splits the monoblock circuit board among the prior art into a plurality of subcomponents such as capacitive plate 21, control panel 22, power board 23, rectifier module 24 and contravariant module 25, and the occupation space of each subcomponent is little, and compacter that can arrange promotes space utilization, can separate strong current part and weak current part moreover, and each is at its own discretion, can not mutual interference, and the maintenance of being convenient for also only need change corresponding part in follow-up power extension can, and is very convenient. In addition, in the embodiment, the copper bars are adopted for power transmission in the circuit space, and compared with the mode of arranging copper wires on a circuit board in the prior art, the current resistance and the heat dissipation performance are greatly improved, and the high-power requirement can be met.

As shown in fig. 2-3, the radiator 12 of the present embodiment includes a heat dissipation plate 121 and heat dissipation fins 122, one side of the heat dissipation plate 121 is fixedly provided with the rectifying module 24 and the inverter module 25 in sequence, the other side of the heat dissipation plate 121 is provided with the heat dissipation fins 122, and heat of the rectifying module 24 and the inverter module 25 is directly dissipated through the heat dissipation plate 121 and the heat dissipation fins 122. Like this, the inside higher part that generates heat of machine all concentrate the heat dissipation through the heat dissipation space, and holistic radiating effect is good.

As shown in fig. 4 and 1, the high-power servo driver of the present embodiment further includes a housing 31 and an upper cover 32, a baffle 14 is further disposed between the other side of the radiator 12 and the housing 31, and a diversion slope 141 extending toward the air duct plate 11 and the inner bottom surface of the housing 31 is formed on the baffle 14. In this embodiment, the radiator 12 is directly fixedly connected with the housing 31 through the screw, and cold air flows between the radiator 12 and the housing 31, and the part of cold air does not pass through the radiator 12 to cause waste, so in this embodiment, the deflector 14 is disposed between the radiator 12 and the housing 31, and the part of cold air is guided into the radiator 12 and the air duct plate 11 through the deflector inclined plane 141, thereby improving the heat dissipation efficiency.

Preferably, the housing 31 of the present embodiment is further provided with a vertical mounting portion 311, as shown in fig. 1, where the radiator 12, the air duct board 11 and the fan 13 are sequentially arranged from top to bottom after the housing 31 is vertically mounted. In this embodiment, the vertical mounting portion 311 is two gourd-shaped lugs disposed at one end of the housing 31, so that the mounting is convenient, the radiator 12, the air duct plate 11 and the fan 13 are disposed from top to bottom after the vertical hanging is mounted, and when the machine works, air in the housing 31 expands due to heating and moves upwards from bottom to top, and the air blowing of the fan 13 is combined, so that a better heat dissipation effect is achieved. Of course, in other embodiments, other means such as fasteners may be used to vertically mount the housing 31.

Preferably, the fan 13 of the embodiment is externally installed on the housing 31, so that the fan 13 can be directly disassembled from the outside, and the fan 13 can be directly replaced without disassembling the housing once failing under severe working conditions, thereby greatly improving maintenance efficiency.

As shown in fig. 2-7, in this embodiment, the left and right sides in the housing 31 are further provided with supporting members 312, the power board 23 is supported by the supporting members 312, specifically, the first supporting plate 28 is mounted on the supporting members 312, nuts are welded in advance on the bottoms of the plurality of mounting holes 3121 for connecting the first supporting plate 28 on the supporting members 312, so as to facilitate the fastening and mounting of the first supporting plate 28, and then the power board 23 is mounted on the first supporting plate 28, and a sufficient gap is left between them. Further, a second support plate 29 is further installed on the support member 312, a plurality of current sensors 291 are installed on the second support plate 29, and a copper bar is arranged in the middle of each current sensor 291 in a penetrating manner.

In this embodiment, since the power board 23 needs to be electrically connected to the inverter module 25, the first support board 28 and the power board 23 are correspondingly disposed above the heat sink 12 and the inverter module 25, and the second support board 29 and the current sensor 291 are disposed on one side of the power board 23 and on the upper outer side of the capacitor board 21, and the upper surface of the second support board 29 is lower than the upper surface of the first support board 28. Further, a plurality of copper bars are disposed below the power board 23, such as the copper bars connected to the capacitor board 21 by the rectifying module 24 or connected to the output side by the inverting module 25, wherein, as shown in fig. 7 and fig. 2, the copper bars connected to the output side from the inverting module 25 are bent upward between the first support plate 28 and the second support plate 29, then bent rightward, and then connected to the support insulator 292 on the second support plate 29, and then connected to the output side by the current sensor 291 through the switching copper bars 293 on the support insulator 292.

Further, as shown in fig. 1 and 6, in the present embodiment, the control board 22 is disposed on the inner side of the upper cover 32, and the control board 22 is mounted perpendicular to the upper cover 32, and the first support board 28 is further provided with a notch avoidance control board 22, so that the inner space of the housing 31 is fully utilized, each interface 321 on the control board 22 protrudes to the outer side of the upper cover 32, and both ends of the housing 31 are further provided with U, V, W input terminals 313 and R, S, T, and output terminals 314 such as brakes. So, each part of this embodiment is rationally distributed, the connection of the circuit of being convenient for to make compact structure under the prerequisite of guaranteeing electric distance, space utilization is high.

From the above, it can be seen that the high-power servo driver provided in this embodiment has a compact structure, a reasonable layout, a high space utilization, a small occupied space, and is convenient to replace, maintain and expand, and has a good heat dissipation performance, so that the high-power requirement can be met.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A high power servo driver comprising:

the air duct board (11), a fan (13) is connected to a first end of the air duct board (11), a radiator (12) is connected to a second end of the air duct board (11), a heat dissipation space is formed in the air duct board (11) and the radiator (12), and one sides of the air duct board (11) and the radiator (12) are configured as a circuit space;

the circuit space is internally provided with a capacitor plate (21), the capacitor plate (21) is arranged at a position corresponding to the air duct plate (11), a plurality of capacitors (211) are uniformly arranged on the capacitor plate (21), and the capacitors (211) are inserted into the air duct plate (11) to dissipate heat; the circuit space is internally provided with a control board (22), a power board (23), a rectifying module (24) and an inversion module (25), and the capacitor board (21), the control board (22), the power board (23), the rectifying module (24) and the inversion module (25) are electrically connected through a signal cable (26) and a power copper bar (27).

2. The high-power servo driver according to claim 1, wherein the heat sink (12) includes a heat radiating plate (121) and heat radiating fins (122), the rectification module (24) and the inversion module (25) are fixedly mounted on one side of the heat radiating plate (121), and the heat radiating fins (122) are provided on the other side of the heat radiating plate (121).

3. The high-power servo driver according to claim 2, further comprising a housing (31), wherein a deflector (14) is further disposed between the other side of the heat sink (12) and the housing (31), and a deflector slope (141) extending toward the air duct plate (11) and the inner bottom surface of the housing (31) is formed on the deflector (14).

4. A high-power servo driver according to claim 3, wherein the housing (31) is further provided with a vertical mounting portion (311), and the radiator (12), the air duct plate (11) and the fan (13) are sequentially arranged from top to bottom after the housing (31) is vertically mounted.

5. The high power servo driver according to claim 4, wherein the fan (13) is externally mounted on the housing (31).

6. A high power servo driver according to claim 3, wherein the left and right sides in the housing (31) are further provided with a support member (312), the support member (312) supporting the power board (23), in particular, a first support plate (28) is mounted on the support member (312), and the power board (23) is mounted on the first support plate (28).

7. The high-power servo driver according to claim 6, wherein a second supporting plate (29) is further installed on the supporting member (312), a plurality of current sensors (291) are installed on the second supporting plate (29), and each current sensor (291) is arranged corresponding to one copper bar.

8. The high-power servo driver according to claim 7, wherein the first support plate (28) and the power plate (23) are disposed corresponding to the position of the heat sink (12), the second support plate (29) and the current sensor (291) are disposed corresponding to the position of the power plate (23), and a part of copper bars between the power plate (23) and the heat sink (12) pass through the current sensor (291) after being bent twice.

9. The high-power servo driver according to claim 8, wherein an upper cover (32) is provided on the housing (31), the control board (22) is disposed inside the upper cover (32), and each interface (321) of the control board (22) protrudes outside the upper cover (32).

10. High power servo driver according to claim 9, wherein the housing (31) is further provided with an input terminal (313) and an output terminal (314) at both ends, respectively.