Servo driver

Abstract

The utility model discloses a servo driver. The servo driver comprises a circuit board, a transformer, a processor and a heat radiation structure. A transformer and a processor are mounted on the circuit board; the transformer further comprises a heat dissipation structure used for conducting heat dissipation on the transformer. The heat dissipation structure comprises a heat conduction plate and a mounting plate, the mounting plate and the heat conduction plate are integrally formed, the mounting plate is used for being mounted and fixed to a shell of the servo driver, a first heat conduction block and a second heat conduction block are arranged at the bottom of the heat conduction plate, the heat conduction plate is mounted above the circuit board through fixing screws, and the first heat conduction block corresponds to the transformer in position. And the second heat conduction block corresponds to the processor. The device is simple in structure and convenient to use; heat conduction and heat dissipation can be carried out on the transformer in the servo driver, the influence of heat accumulation of the transformer on the performance and the service life of the servo driver is avoided, meanwhile, faults, such as circuit parameter change and electronic element aging acceleration, of the servo driver caused by high temperature are avoided, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to servo driver equipment technical field, concretely is a kind of servo driver. BACKGROUND

[0002] Servo driver is also called "servo controller" or "servo amplifier", it is a kind of controller for controlling servo motor. It is an important component of servo system, mainly applied to high-precision positioning system. Servo driver receives control signals from upper controller (such as PLC, CNC etc.), these signals usually include position command, speed command, torque command etc. Then, servo driver decodes, filters etc. to these signals, and based on control algorithm (such as position control algorithm, speed control algorithm, torque control algorithm etc.) operation is suitable for the driving signal of servo motor work. These driving signals are sent to driving circuit, and are converted into voltage and current signals suitable for the operation of servo motor, so as to drive servo motor to move according to the specified position and speed.

[0003] Through retrieval, Chinese patent application No. CN201810264391.6 relates to a kind of servo driver, including heat dissipation component, power supply substrate, control substrate and multiple with certain hardness's through piece;The heat dissipation component is radiator, the radiator is equipped with heat dissipation cavity;The power supply substrate and control substrate are oppositely arranged in the heat dissipation cavity;The opposite side of the power supply substrate and control substrate is also respectively equipped with through part;The through part is equipped with multiple electrically conductive slot holes;Each the through piece is respectively corresponding to the electrically conductive slot hole on the through part of power supply substrate and the electrically conductive slot hole on the through part of control substrate electrically connected.The application connects the multiple electrically conductive slot holes on the through part of power supply substrate and the electrically conductive slot hole on the through part of control substrate one by one through through piece, realizes the fixed and accurate positioning between power supply substrate and control substrate, can effectively prevent electromagnetic interference;In addition, since through piece has certain supporting effect, can reduce the support structure of radiator, reduce the manufacturing cost and difficulty of radiator.

[0004] However, as a key component in automation system, the performance stability of servo driver is closely related to its heat dissipation performance. In traditional servo driver, a large amount of heat is generated by internal transformer and other components during long-time work. If the heat dissipation is poor, the temperature of the driver will rise, which will affect its working efficiency and service life. High temperature not only affects the performance and service life of the transformer itself, but also may cause faults of the servo driver, such as circuit parameter change, accelerated aging of electronic components, etc. Therefore, it is particularly important to develop a servo driver. UTILITY MODEL CONTENT

[0005] The utility model discloses a purpose at providing a kind of servo driver, the device simple structure, convenient to use;The transformer in servo driver can be heat-conducted and heat-dissipated, avoid the heat accumulation of transformer to influence own performance and life, simultaneously, avoid high temperature to cause the failure of servo driver, such as circuit parameter change, electronic component aging acceleration etc., prolong the service life of equipment, to solve the problem proposed in above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of servo driver, comprising:

[0008] Circuit board;

[0009] The transformer and processor are installed on the circuit board;

[0010] Further including the heat-dissipation structure for the heat-dissipation of transformer;

[0011] The heat-dissipation structure includes heat-conducting plate and mounting plate, mounting plate and heat-conducting plate are integrally formed, and mounting plate is used to be fixed in the shell of servo driver, the bottom of heat-conducting plate is provided with first heat-conducting block and second heat-conducting block respectively, heat-conducting plate is installed above circuit board by fixed screw, first heat-conducting block and transformer position correspond, and second heat-conducting block and processor correspond.

[0012] Preferably, the bottom of the first heat-conducting block and the top of the transformer are attached together, and the second heat-conducting block and the top of the processor are attached together.

[0013] Preferably, the contact surfaces of the first heat-conducting block and the top of the transformer and the contact surfaces of the second heat-conducting block and the processor are provided with heat-conducting sheets, and the heat-conducting sheets are heat-conducting silica gel sheets.

[0014] Preferably, the bottom of the heat-conducting plate is provided with four groups of fixing columns, and the bottom of the fixing seat is provided with threaded holes for installing fixed screws.

[0015] Preferably, the circuit board is provided with fixing holes, the fixing holes and the threaded holes one-to-one correspond, and the fixing holes are for the fixed screws to pass through.

[0016] Preferably, the surface of the heat-conducting plate is equidistantly provided with convex strips, and the convex strips form ventilation flow channels for air circulation.

[0017] Preferably, the convex strips on the heat-conducting plate are provided with fins, and the fins are in the shape of fish fins.

[0018] Preferably, the heat-conducting plate, the convex strips and the fins are integrally formed.

[0019] Preferably, the heat-conducting plate, the convex strips and the fins are made of aluminum.

[0020] Preferably, the mounting plate is provided with mounting holes for fixing the servo driver.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] The utility model discloses a heat dissipation structure that comprises a heat conduction plate and a mounting plate, the heat conduction plate is fixed through fixing screws and a circuit board, the heat conduction plate bottom is provided with first heat conduction lugs and second heat conduction lugs, the first heat conduction lugs and the second heat conduction lugs correspond to a transformer and a controller on the circuit board respectively, a heat conduction silica gel sheet is arranged between the first heat conduction lugs and the transformer, the device is simple in structure and convenient to use, can conduct heat and dissipate heat for the transformer in the servo driver, avoids the influence of transformer heat accumulation on its performance and service life, simultaneously, avoids the high temperature from causing the failure of the servo driver, such as circuit parameter change, electronic component aging acceleration etc. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structural schematic diagram of the utility model;

[0024] Figure 2 It is the structural schematic diagram of the circuit board of the utility model;

[0025] Figure 3 It is the structural schematic diagram of the heat conduction plate of the utility model;

[0026] Figure 4 It is the structural schematic diagram of the heat dissipation sheet of the utility model.

[0027] In the drawing: 1, circuit board;2, transformer;3, processor;4, mounting plate;5, heat conduction plate;6, fixed column;7, fixed hole;8, screw hole;9, first heat conduction lug;10, second heat conduction lug;11, heat conduction sheet;12, ventilation flow channel;13, heat dissipation sheet. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0029] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of servo driver, servo driver is used to control the controller of servo motor, its effect is similar to the effect of frequency converter to ordinary ac motor, it is part of servo system, mainly applied to high-precision positioning system.

[0030] In the application implementation, the servo driver includes circuit board 1, transformer 2, processor 3 and heat dissipation structure;Circuit board 1 is installed with transformer 2 and processor 3;Further including the heat dissipation structure for the heat dissipation of transformer 2;Heat dissipation structure includes heat conduction plate 5 and mounting plate 4, mounting plate 4 and heat conduction plate 5 are integrally formed, and mounting plate 4 is used to install and fix in the shell of servo driver, heat conduction plate 5 bottom is provided with first heat conduction block and second heat conduction block respectively, heat conduction plate 5 is installed above circuit board 1 by fixed screw, first heat conduction block and transformer 2 position correspond, second heat conduction block and processor 3 correspond.The device structure is simple, and convenient to use;Transformer 2 in servo driver can be heat-conducted and heat-dissipated, avoid the heat accumulation of transformer 2 to influence self performance and life, simultaneously, avoid high temperature to cause the failure of servo driver, such as circuit parameter change, electronic component aging acceleration, etc., prolong the service life of equipment.

[0031] In the application implementation, circuit board 1 is installed with transformer 2 and processor 3, so that transformer 2 and processor 3 are fixed to the upper side of circuit board 1.

[0032] In the application implementation, further including the heat dissipation structure for the heat dissipation of transformer 2;Heat dissipation structure includes heat conduction plate 5 and mounting plate 4, mounting plate 4 and heat conduction plate 5 are integrally formed, guarantee the connecting strength between mounting plate 4 and heat conduction plate 5, improve the connecting stability between mounting plate 4 and heat conduction plate 5, avoid the fracture of connecting portion between mounting plate 4 and heat conduction plate 5, mounting plate 4 is used to install and fix in the shell of servo driver, heat conduction plate 5 bottom is provided with first heat conduction block and second heat conduction block respectively, heat conduction plate 5 is installed above circuit board 1 by fixed screw, first heat conduction block and transformer 2 position correspond, so that the heat generated in the working process of transformer 2 is conducted to first heat conduction block, second heat conduction block and processor 3 correspond, so that the heat generated in the working process of processor 3 is conducted to second heat conduction block.

[0033] The bottom of the heat-conducting plate 5 is provided with four groups of fixing columns 6, and the bottom of the fixing seat is provided with threaded holes 8 for mounting fixing screws.

[0034] The utility model discloses a heat dissipation structure that includes heat-conducting plate 5 and mounting plate 4, heat-conducting plate 5 is fixed through fixing screw and circuit board 1, guarantees the position accuracy of heat-conducting plate 5 relative to circuit board 1, and the bottom of heat-conducting plate 5 is provided with first heat-conducting boss 9 and second heat-conducting boss 10, and first heat-conducting boss 9 and second heat-conducting boss 10 correspond to transformer 2 and controller on circuit board 1 respectively, so that the heat generated by transformer 2 during operation is conducted to first heat-conducting boss 9, and the heat generated by controller during operation is conducted to second heat-conducting boss 10, and heat-conducting silica gel sheet is arranged between first heat-conducting boss 9 and transformer 2, and the two ends of the heat-conducting silica gel sheet contact first heat-conducting boss 9 and transformer 2 respectively, so that the heat generated by transformer 2 during operation is conducted to first heat-conducting boss 9 through the heat-conducting silica gel sheet, to realize the heat transfer of transformer 2, thereby achieving the heat dissipation effect, and in actual use, the circuit board 1 and heat-conducting plate 5 are assembled by combining the fixing hole 7 on the circuit board 1 and the threaded hole 8 at the lower end of the fixing column 6 through the fixing screw, so that the heat-conducting plate 5 is fixed to the circuit board 1, the position accuracy of the heat-conducting plate 5 relative to the circuit board 1 is guaranteed, and the first heat-conducting boss 9 and the transformer 2 are attached, so that the heat of the transformer 2 can be conducted and dissipated through the first heat-conducting boss 9 during the operation of the servo driver, and the heat-conducting plate 5 is used for heat dissipation, thereby avoiding the interference of the heat accumulation of the transformer 2 on the electrical elements, and guaranteeing the performance of the transformer 2.

[0035] After the circuit board 1 and the heat-conducting plate 5 are installed, the second heat-conducting boss 10 and the processor 3 are attached together, so that the heat generated by the processor 3 during operation is conducted to the second heat-conducting boss 10, and the heat dissipated by the processor 3 can also be conducted and dissipated through the heat-conducting plate 5, to realize the heat dissipation effect on the processor 3 and guarantee the performance of the processor 3.

[0036] In general, the device is simple in structure and convenient to use; the transformer 2 in the servo driver can be heat-conducted and heat-dissipated, avoiding heat accumulation of the transformer 2 to affect its performance and service life, and meanwhile, avoiding high temperature to cause faults of the servo driver, such as change of circuit parameters, acceleration of aging of electronic components, etc., prolonging the service life of the equipment.

[0037] Meanwhile, please refer to Figures 2-3 :

[0038] The bottom of the first heat-conducting block and the top of the transformer 2 are attached together, so that the heat generated by the transformer 2 during operation is conducted upward to the bottom of the first heat-conducting block, thereby facilitating heat dissipation of the transformer 2 to achieve the heat dissipation effect of the transformer 2. The second heat-conducting block and the top of the processor 3 are attached together, so that the heat generated by the processor 3 during operation is conducted upward to the second heat-conducting block, thereby facilitating heat dissipation of the processor 3 to achieve the heat dissipation effect of the processor 3. The contact surfaces of the first heat-conducting block and the top of the transformer 2 and the contact surfaces of the second heat-conducting block and the processor 3 are provided with heat-conducting sheets 11, which are heat-conducting silica gel sheets. At this time, the heat-conducting sheets 11 are between the first heat-conducting block and the transformer 2, and the two ends of the heat-conducting sheets 11 contact the first heat-conducting block and the transformer 2, respectively, so that the heat generated by the transformer 2 during operation is conducted to the first heat-conducting block through the heat-conducting sheets 11, thereby ensuring the heat dissipation effect of the transformer 2. The heat-conducting sheets 11 are between the second heat-conducting block and the processor 3, and the two ends of the heat-conducting sheets 11 contact the second heat-conducting block and the processor 3, respectively, so that the heat generated by the processor 3 during operation is conducted to the second heat-conducting block through the heat-conducting sheets 11, thereby ensuring the heat dissipation effect of the processor 3.

[0039] By setting heat-conducting silica gel sheets between the first heat-conducting protrusions 9 and the top of the transformer 2, and the two ends of the heat-conducting silica gel sheets contact the first heat-conducting protrusions 9 and the transformer 2, respectively, so that the heat generated by the transformer 2 during operation is conducted to the first heat-conducting protrusions 9 through the heat-conducting silica gel sheets, thereby facilitating heat dissipation of the transformer 2 to the first heat-conducting protrusions 9 to achieve the heat dissipation effect. Heat-conducting silica gel sheets are set between the second heat-conducting protrusions 10 and the top of the processor 3, and the two ends of the heat-conducting silica gel sheets contact the second heat-conducting protrusions 10 and the processor 3, respectively, so that the heat generated by the processor 3 during operation is conducted to the second heat-conducting protrusions 10 through the heat-conducting silica gel sheets, thereby facilitating heat dissipation of the processor 3 to the second heat-conducting protrusions 10 to achieve the heat dissipation effect. It can be applied between the heat source and the heat sink, has good heat conduction capacity and high voltage resistance, is easy to install, is beneficial to automatic production and product maintenance, and is convenient for heat conduction of the transformer 2 and the processor 3 to the heat-conducting plate 5.

[0040] In addition, please refer to Figure 1 and Figure 4 :

[0041] The surface of the heat-conducting plate 5 is equidistantly distributed with convex strips, and air flow channels 12 for air circulation are formed between the convex strips, so that the air carries away the heat in the air flow channels 12 during the flow process, thereby facilitating the reduction of the heat of the air flow channels 12. The convex strips on the heat-conducting plate 5 are provided with fins 13, and the fins 13 are arranged in a fish fin shape. The heat-conducting plate 5, the convex strips and the fins 13 are integrally formed, which ensures the connection strength between the heat-conducting plate 5, the convex strips and the fins 13 and improves the connection stability between the heat-conducting plate 5, the convex strips and the fins 13. The material of the heat-conducting plate 5, the convex strips and the fins 13 is aluminum.

[0042] By distributing the convex strips on the heat-conducting plate 5 to form the air flow channels 12, the air circulation on the surface of the heat-conducting plate 5 can be facilitated, the heat dissipation capacity of the heat-conducting plate 5 is improved, and the contact area between the heat-conducting plate 5 and the air is increased, thereby improving the heat dissipation efficiency.

[0043] By arranging the fins 13 on the convex strips, the heat dissipation capacity of the heat-conducting plate 5 can be further improved. The fins 13 can contact the flowing air, increase the contact area, improve the heat dissipation capacity, facilitate the air to carry away the conducted heat, and further improve the heat dissipation and cooling efficiency of the transformer 2.

[0044] The heat-conducting plate 11 can also be replaced by a heat-conducting silicone cloth according to actual needs, and glass fibers are used as a base material for reinforcement. The heat-conducting plate 11 can effectively reduce the thermal resistance between the electronic components and the heat sink, is electrically insulated, has high dielectric strength, good thermal conductivity, and high chemical resistance.

[0045] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model. Those skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. A servo driver, characterized by, Include: Circuit board (1); The transformer (2) and processor (3) are installed on the circuit board (1); Further comprising a heat dissipation structure for heat dissipation of transformer (2); The heat dissipation structure includes heat conduction plate (5) and mounting plate (4), mounting plate (4) and heat conduction plate (5) are integrally formed, mounting plate (4) is used for mounting and fixing in the shell of servo driver, the bottom of the heat conduction plate (5) is provided with first heat conduction block and second heat conduction block, respectively, the heat conduction plate (5) is installed above the circuit board (1) through fixing screw, the first heat conduction block and the transformer (2) position corresponding, the second heat conduction block and processor (3) corresponding.

2. A servo drive according to claim 1, characterized in that: The bottom of the first heat conduction block and the top of the transformer (2) are pasted together, and the second heat conduction block and the top of the processor (3) are pasted together.

3. A servo drive according to claim 2, characterized in that: The contact surface of the first heat conduction block and the top of the transformer (2) and the contact surface of the second heat conduction block and the processor (3) are provided with heat conduction sheet (11), and the heat conduction sheet (11) is heat conduction silica gel sheet.

4. A servo drive according to claim 1, characterized in that: The bottom of the heat conduction plate (5) is provided with four groups of fixed column (6), and the bottom of the fixed seat is provided with thread hole (8) for installing fixing screw.

5. A servo drive according to claim 4, characterized in that: The circuit board (1) is provided with fixing hole (7), and the fixing hole (7) and the thread hole (8) correspond one by one, and the fixing hole (7) is used for fixing screw.

6. A servo drive according to claim 1, characterized in that: The surface of the heat conduction plate (5) is equidistantly distributed with convex strip, and the convex strip forms ventilation flow channel (12) for air circulation.

7. A servo drive according to claim 1, characterized by: The convex strip on the heat conduction plate (5) is provided with fin (13), and the fin (13) is arranged in the form of fish fin.

8. A servo drive according to claim 1, characterized by: The heat conduction plate (5), convex strip and fin (13) are integrally formed.

9. A servo drive according to claim 1, characterized in that: The material of the heat conduction plate (5), convex strip and fin (13) is aluminum.

10. A servo drive according to claim 1, characterized in that: The mounting plate (4) is provided with mounting hole, which is used for fixing servo driver.

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