CN220511563U - Heat radiator for servo driver - Google Patents

Abstract

The application discloses servo driver's heat abstractor relates to servo driver's field, can solve the poor problem of radiating effect of radiator among the prior art. The heat dissipation device comprises a bottom plate connected to a circuit board of the servo driver, and a heat dissipation assembly connected to the bottom plate and far away from the circuit board, wherein the heat dissipation assembly comprises a base plate connected to the bottom plate, a plurality of heat dissipation fins connected to the base plate, the heat dissipation fins are arranged at intervals, a heat dissipation air channel used for enabling air of a fan of the servo driver to flow through is formed between the adjacent heat dissipation fins, a gap is reserved between the fan and the end part of each heat dissipation fin, and one or more of one ends, close to the fan, of each heat dissipation fin extend into an eddy current area at an air outlet of the fan.

Description

Heat radiator for servo driver

Technical Field

The application relates to the field of servo drivers, in particular to a heat dissipation device of a servo driver.

Background

The basic principle of the servo driver is based on the core concept of a feedback control system to accurately regulate and control the motion parameters of the servo driver. The basic structure of the servo driver generally comprises a controller, an amplifier and a motor, wherein the controller generates corresponding electric signals according to received instructions, the amplifier amplifies the electric signals and then drives the motor, and the motor is used as an executive element to realize regulation and control on motion parameters. Servo drives are widely used in many fields, such as industrial machinery, automation equipment, precision instruments, etc.

However, during operation of the servo driver, a large amount of heat is generated due to the large number of electronic components integrated therein. If heat dissipation is not carried out in time, the working temperature of the servo driver is too high, the performance of the servo driver is affected, and even the device is possibly damaged. Therefore, it is often necessary to configure the servo drive with a heat sink to perform a heat dissipation process to ensure that it operates at normal operating temperatures.

In the prior art, the radiator generally radiates heat through a plurality of radiating fins. These fins are generally uniform in length and aligned, and this design presents some problems in practical use: the air blown out by the cooling fan of the servo driver passes through the channel between two adjacent cooling fins to take away the heat on the cooling fins, however, the air blown out by the cooling fan of the servo driver easily forms vortex at the outlet of the cooling fan, and the vortex influences the normal blowing out of the air of the cooling fan, so that the cooling effect is influenced.

Disclosure of Invention

Therefore, the application provides a heat dissipation device of a servo driver, so as to solve the problem of poor heat dissipation effect of a radiator in the prior art.

In order to achieve the above object, the present application provides the following technical solutions:

the utility model provides a servo driver's heat abstractor, includes connect in servo driver's circuit board's bottom plate, connect in the bottom plate is kept away from the heat dissipation subassembly of circuit board, heat dissipation subassembly including connect in the base plate, a plurality of connect in the radiating fin of base plate, a plurality of radiating fin interval arrangement, and adjacent be formed with between the radiating fin and be used for making the wind of servo driver's fan flows the heat dissipation wind channel that flows, the fan with have the clearance between the tip of radiating fin, a plurality of radiating fin is close to one or more in the one end of fan extends to in the vortex area of air outlet department of fan.

Preferably, the plurality of radiating fins form two radiating air duct groups matched with the fans, the two radiating air duct groups and the two fans are in one-to-one correspondence, the radiating air duct groups comprise a plurality of radiating air ducts, and the two radiating air duct groups are symmetrically arranged along the radiating fins in the middle of the plurality of radiating fins.

Preferably, the lengths of the plurality of the heat radiating fins near the end of the fan are uneven.

Preferably, the heat dissipation fin is integrally formed on the base plate.

Preferably, a plurality of radiating fins are connected to the same side of the substrate, one side, away from the radiating fins, of the substrate is connected with two radiating guard plates, a plurality of grooves for avoiding components on the circuit board are further formed in the substrate, a plurality of bosses are further connected to the substrate, threaded holes are formed in the end faces, away from the substrate, of the bosses, and the grooves and the bosses are located between the two radiating guard plates.

Preferably, the base plate is connected to the base plate by fasteners.

Preferably, the fastener is a countersunk screw.

Preferably, the heat dissipation guard plate is connected with a plurality of buckles for connecting the shell of the servo driver.

The application has the following advantages:

by the design, the wind blown by the fan flows along the radiating air duct and takes away the heat on the radiating fins. When wind blows out from the fan, the lengths of the radiating fins are different, so that vortex formed at the outlet of the fan is disturbed, and air flow can better pass through the radiating fins to take away heat on the radiating fins. The design not only improves the heat dissipation effect and reduces the influence of vortex on heat dissipation, but also reduces the noise generated by the vortex.

Drawings

For a more visual illustration of the prior art and the present application, several exemplary drawings are presented below. It should be understood that the specific shape and configuration shown in the drawings should not be considered in general as limiting upon the practice of the present application; for example, based on the technical concepts and exemplary drawings disclosed herein, those skilled in the art have the ability to easily make conventional adjustments or further optimizations for the add/subtract/assign division, specific shapes, positional relationships, connection modes, dimensional scaling relationships, etc. of certain units (components).

Fig. 1 is a schematic diagram of an overall structure of a heat dissipating device of a servo driver according to an embodiment of the present disclosure;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is another view of FIG. 1;

fig. 4 is a top view of fig. 3.

Reference numerals illustrate:

1. a bottom plate; 2. a heat dissipation assembly; 21. a substrate; 211. a heat radiation guard board; 212. a boss; 213. a groove; 214. a buckle; 22. a heat radiation fin; 221. a heat dissipation air duct; 3. a fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the description of the present application: the terms "inner", "outer" refer to the inner and outer of the respective component profiles; the terms "first," "second," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed but inherent to such process, method, article, or apparatus or adding steps or elements based on further optimization of the inventive concept.

Referring to fig. 1 to 4, a heat dissipating device of a servo driver includes a base plate 1 connected to a circuit board of the servo driver, a heat dissipating assembly 2 connected to the base plate 1 and remote from the circuit board, the heat dissipating assembly 2 includes a base plate 21 connected to the base plate 1, a plurality of heat dissipating fins 22 connected to the base plate 21, the plurality of heat dissipating fins 22 are arranged at intervals, a heat dissipating air channel 221 for allowing air flow of a fan 3 of the servo driver to flow through is formed between adjacent heat dissipating fins 22, a gap is formed between the fan 3 and an end of the heat dissipating fin 22, and one or more of one ends of the plurality of heat dissipating fins 22 near the fan 3 extends into a vortex region at an air outlet of the fan 3.

By such a design, the air blown by the fan 3 flows along the heat dissipation duct 221 and takes away the heat on the heat dissipation fins 22. When wind blows out from the fan, the lengths of the radiating fins 22 are different, so that vortex formed at the outlet of the fan 3 is disturbed, and airflow can better pass through the radiating fins 22 to take away heat on the radiating fins 22. The design not only improves the heat dissipation effect and reduces the influence of vortex on heat dissipation, but also reduces the noise generated by the vortex.

The plurality of heat dissipation fins 22 form two heat dissipation air channel 221 groups matched with the fans 3, the two heat dissipation air channel 221 groups are in one-to-one correspondence with the two fans 3, the heat dissipation air channel 221 groups comprise a plurality of heat dissipation air channels 221, and the two heat dissipation air channel 221 groups are symmetrically arranged along the heat dissipation fins 22 in the middle of the plurality of heat dissipation fins 22. The two heat dissipation air channels 221 respectively cooperate with the two fans 3 to work, so that the heat dissipation effect is enhanced.

The lengths of the ends of the plurality of heat radiating fins 22 near the fan 3 are uneven. I.e., the length of each fin 22 is different, further breaking the vortex.

In some other embodiments, the plurality of heat dissipation fins 22 of the two heat dissipation air channels 221 close to one of the base plates 21 are flush, and the lengths of the ends of the plurality of heat dissipation fins 22 far from the other base plate 21 close to the fan 3 are uneven, because the plurality of heat dissipation fins 22 far from the base plate 21 are closer to the components with high power consumption and high heat generation, and good heat dissipation effect is required.

The heat radiating fins 22 are integrally formed on the base plate 21. Thus, the radiating fins 22 and the base plate 21 can be die-cast together, so that the production and the processing are convenient, and the overall strength is good.

The radiating fins 22 are connected to the same side of the base plate 21, two radiating guard plates 211 are connected to one side, far away from the radiating fins 22, of the base plate 21, a plurality of grooves 213 for avoiding components on the circuit board are formed in the base plate 21, a plurality of bosses 212 are further connected to the base plate 21, threaded holes are formed in the end faces, far away from the base plate 21, of the bosses 212, and the grooves 213 and the bosses 212 are located between the two radiating guard plates 211. The grooves 213 can avoid components on the circuit board, so that the overall structure of the internal parts of the servo driver is assembled tightly.

The base plate 1 is connected to the base plate 21 by fasteners.

The fastener is a countersunk head screw.

The heat sink guard 211 is connected with a plurality of snaps 214 for connecting to the housing of the servo drive. The buckle 214 facilitates the connection of the heat dissipation assembly 2 with the housing of the servo driver, and increases the installation stability of the heat dissipation assembly 2.

Any combination of the technical features of the above embodiments may be performed (as long as there is no contradiction between the combination of the technical features), and for brevity of description, all of the possible combinations of the technical features of the above embodiments are not described; these examples, which are not explicitly written, should also be considered as being within the scope of the present description.

The foregoing has outlined and detailed description of the present application in terms of the general description and embodiments. It should be appreciated that numerous conventional modifications and further innovations may be made to these specific embodiments, based on the technical concepts of the present application; but such conventional modifications and further innovations may be made without departing from the technical spirit of the present application, and such conventional modifications and further innovations are also intended to fall within the scope of the claims of the present application.

Claims (8)

1. The utility model provides a servo driver's heat abstractor, its characterized in that, including connect in servo driver's circuit board's bottom plate, connect in the bottom plate is kept away from the heat dissipation subassembly of circuit board, heat dissipation subassembly including connect in the base plate, a plurality of connect in the radiating fin of base plate, a plurality of radiating fin interval arrangement, and be adjacent be formed with between the radiating fin and be used for making the wind of servo driver's fan flows the radiating wind channel that flows through, the fan with have the clearance between the tip of radiating fin, a plurality of radiating fin is close to one or more in the one end of fan extends to in the vortex area of air outlet department of fan.

2. The heat dissipating device of claim 1, wherein the plurality of heat dissipating fins form two heat dissipating air channel groups that cooperate with the fans, the two heat dissipating air channel groups and the two fans are in one-to-one correspondence, the heat dissipating air channel groups comprise a plurality of heat dissipating air channels, and the two heat dissipating air channel groups are symmetrically arranged along the heat dissipating fins in the middle of the plurality of heat dissipating fins.

3. The heat sink of claim 1, wherein a plurality of said heat dissipating fins are uneven in length near an end of said fan.

4. The heat sink of claim 1, wherein the heat sink fins are integrally formed with the base plate.

5. The heat dissipating device of claim 1, wherein a plurality of the heat dissipating fins are connected to a same side of the substrate, two heat dissipating guard plates are connected to a side of the substrate away from the heat dissipating fins, a plurality of grooves for avoiding components on the circuit board are further formed in the substrate, a plurality of bosses are further connected to the substrate, threaded holes are formed in an end face of the boss away from the substrate, and the plurality of grooves and the plurality of bosses are located between the two heat dissipating guard plates.

6. The heat sink of claim 1, wherein the base plate is connected to the base plate by fasteners.

7. The heat sink of claim 6, wherein the fastener is a countersunk screw.

8. The heat sink of claim 5 wherein the heat sink guard is coupled with a plurality of snaps for coupling to the housing of the servo driver.