KR101551653B1

KR101551653B1 - Heat dissipating device

Info

Publication number: KR101551653B1
Application number: KR1020140049786A
Authority: KR
Inventors: 전진수
Original assignee: 알에스오토메이션주식회사
Priority date: 2014-04-25
Filing date: 2014-04-25
Publication date: 2015-09-08
Also published as: WO2015163572A1

Abstract

A heat dissipating device of the present invention includes a casing provided with a receiving space, a first rib recessed on a first surface exposed to the outside of the casing, a concave portion formed on a second surface exposed to the outside and opposed to the first surface, The second rib may be formed.

Description

HEAT DISSIPATING DEVICE

The present invention relates to a heat dissipating device for discharging heat in a housing space provided in a case.

In various electric equipment driven by electric power, heat is generated by the resistance contained in the electric equipment.

Since the electric equipment may not normally function by the heat at this time, it is preferable to reduce the heat by using the heat dissipating means.

Such a heat radiating means is also required for electronic circuit equipment such as a controller for controlling various loads.

Korean Patent Laid-Open Publication No. 2001-0084052 discloses a heat dissipating means for dissipating heat generated from a specific component.

Korean Patent Publication No. 2001-0084052

The present invention is to provide a heat dissipating device for discharging heat in a housing space provided in a case.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

The heat dissipating device of the present invention may include a case provided with a receiving space, a first rib recessed on a first surface of the case, and a second rib recessed on a second surface of the case.

According to the heat dissipating device of the present invention, concave ribs are formed on the first and second surfaces of the case, thereby reliably reducing the heat of the interior space of the case.

According to the rib, the area of the case which is in contact with the outside is increased, thereby contributing to heat radiation.

In particular, by forming the vent hole connected to the accommodation space in the rib, the hot air inside the accommodation space can be directly discharged to the outside.

Furthermore, when a plurality of cases are stacked without spacing to improve space utilization, that is, when zero stacking is performed, the ribs may function as exhaust ports for discharging the hot air in the accommodation space to the outside. The ends of the ribs may be exposed to the third surface exposed to the outside so that hot air can be reliably discharged to the outside. Further, the ribs may extend in the same direction to form a reliable exhaust port.

Further, the ribs formed on the first surface and the ribs formed on the second surface are made to have different positions, or the extension directions are different from each other, so that the phenomenon that the heat of the specific case is conducted to the other case during zero stacking can be minimized.

In addition, since means for introducing the hot air discharged through the fan portion to the upper lib is provided, the hot air can reliably be discharged to the outside during the zero stacking.

Further, by providing a guide having an area larger than the width of each rib on each surface of the case, it is possible to prevent the ribs formed on the first surface and the ribs formed on the second surface from being stuck together.

1 is a schematic view showing a heat dissipating device of the present invention.
2 is a plan view showing a heat dissipating device of the present invention.
3 is a bottom view of the heat dissipating device of the present invention.
4 is a schematic view showing a state in which a plurality of cases constituting the heat dissipating device of the present invention are laminated.
5 is a schematic view showing another state in which a plurality of cases constituting the heat dissipating device of the present invention are laminated.
6 is a schematic view showing another heat dissipating device of the present invention.
7 is a schematic view showing states of the first rib and the second rib in another heat dissipation device of the present invention.
8 is a schematic view showing a case in which the case is improperly installed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.

FIG. 1 is a schematic view showing a heat dissipating device of the present invention, and FIG. 2 is a plan view showing a heat dissipating device of the present invention. 3 is a bottom view of the heat dissipating device of the present invention.

The heat dissipation device shown in the drawing may include a case 190, a first rib 110, and a second rib 120.

The case 190 may be provided with a receiving space.

Various electrical equipment and electronic equipment that are driven by electric power and generate heat when driven can be accommodated in the accommodation space.

For example, a control unit for controlling the load may be accommodated in the accommodation space. At this time, the control unit can control the load by a PID (Proportional, Integral and Differential) control method. For PID control, the control unit may include an element such as an operational amplifier. At this time, heat may be generated by driving each element.

In order to reduce heat at this time, a heat dissipating means such as a fan may be provided in the case 190 housing the control unit.

The heat dissipating device of the present invention can use the first ribs 110 and the second ribs 120 in order to manifest a heat radiating effect by changing the structure of the case 190.

The first ribs 110 may be concave on the first surface 191 exposed to the outside of the case 190. The second rib 120 may be concave on the second surface 192, which is the opposite surface of the first surface 191 exposed outward from the case 190.

The first ribs 110 and the second ribs 120 are formed so that the first surface 191 and the second surface 192 of the case 190 are flat, . Therefore, the heat radiating effect (cooling effect) by the outside air can be increased.

In addition, since the first ribs 110 are formed on the first surface 191 and the second ribs 120 are formed on the second surface 192, when the case 190 is stacked in plurality, .

In the case of the above-described control unit, a plurality of control units may be provided. For example, when a machine tool is controlled, the number of degrees of freedom of the corresponding machine tool is required.

If the machine tool has x-axis freedom, y-axis freedom and z-axis freedom, three control units are required. If one control unit is accommodated in the case 190, a total of three cases 190 are required.

At this time, if the three cases 190 are disposed apart from each other, the problem of heat radiation may not be serious. However, since the space occupied by the three cases 190 is increased, the space utilization is inevitably lowered.

In order to improve space utilization, the three cases 190 may be stacked in close contact with each other so as to be in contact with each other. In this case, even if a fan is provided on the first surface 191 of each case 190, the fan will be hidden on the second surface 192 of the stacked other case 190 and will not exhibit its original function .

The first ribs 110 and the second ribs 120 of the present invention can be very useful when the plurality of cases 190 are stacked in contact with each other.

First, hot air in the case 190 can be discharged to the outside through the first ribs 110 and the second ribs 120.

At least one end of the first rib 110 and the second rib 120 may be exposed to the third surface 193 exposed from the case 190. For example, if the first surface 191 is the bottom surface of the case 190 and the second surface 192 is the top surface of the case 190, the third surface 193 may be the side surface of the case 190 . Of course, the first surface 191 may be the upper surface of the case 190, and the second surface 192 may be the lower surface of the case 190.

Even if the lower surface and the upper surface of the case 190 are blocked by the other case 190, the side surface can be kept exposed to the outside. Thus, by exposing the end of the first rib 110 or the end of the second rib 120 to the side surface of the case 190, a so-called exhaust port through which air enters and exits can be provided.

The air positioned between the respective cases 190 stacked on each other can be heated by the heat transferred from the receiving space. If the air thus heated is trapped between the respective cases 190, the heat radiation effect will be remarkably lowered. However, when the air is discharged to the third surface 193 of the case 190 through the first ribs 110 or the second ribs 120, a reliable heat radiation effect can be provided.

In addition, the first ribs 110 and the second ribs 120 may extend in the same direction to ensure reliable flow of air located between each of the stacked cases 190. In this case, when the plurality of cases 190 are stacked, the first ribs 110 and the second ribs 120 of the respective cases 190 face each other to form an exhaust passage 140 through which the air communicates .

4 is a schematic view showing a state in which a plurality of cases 190 constituting the heat dissipating device of the present invention are stacked.

The case 190 may be laminated to the support in a first direction from the second side 192 toward the first side 191. At this time, the support may be a ground, a jig or another case 190. In the figure, another case 190 is disclosed as a support.

In the drawing, the first direction may be the gravity direction (negative direction of the z axis), and the vertical direction of the first direction may be the y axis direction. At this time, both the first rib 110 and the second rib 120 may extend along the x-axis direction.

The first rib 110 and the second rib 120 may be formed at the same position y1 on the vertical direction (y-axis) in the first direction.

According to the above configuration, for example, when three cases 190 are stacked in the first direction, the second ribs 120 of the case completely match the first ribs 110 of the case .

An exhaust passage 140 having a cross-sectional area of the cross-sectional area of the first rib 110 and the cross-sectional area of the second rib 120 may be formed.

Further, when a plurality of ribs are provided, the contact area between the second surface 192 of the case and the first surface 191 of the case can be limited to the interval w1 between the ribs. If the first ribs 110 and the second ribs 120 are not provided, the entire second surface 192 of the case will be in contact with the first surface 191 of the case.

There is a difference depending on the material, but it is obvious that the larger the contact area, the more heat is transferred from the case to the case to the case, or from the case to the case to the case. The phenomenon that heat is conducted can be solved by reducing the contact area. According to the first rib 110 and the second rib 120, the contact area of each case 190 can be reduced.

5 is a schematic view showing another state in which a plurality of cases 190 constituting the heat dissipating device of the present invention are laminated.

The first ribs 110 and the second ribs 120 shown in FIG. 5 may be formed at different positions within a range overlapping each other in the vertical direction in the first direction. In the figure, the first rib 110 is formed at the position y1, and the second rib 120 is formed at the position y2 different from y1.

When the case and the case having the first ribs 110 and the second ribs 120 are stacked, the second ribs 120 of the case are slightly staggered with the first ribs 110 of the case can do.

According to this, the exhaust passage 140 having the same sectional area as that of the embodiment of FIG. 4 is provided, and the contact area between the case and the case can be further reduced to w2.

Returning to Figs. 1 to 3, hot air, which is heated air, is present in the accommodation space in accordance with the temperature rise of the control unit or the like. The heat dissipating device of the present invention can discharge hot air inside the accommodation space to the outside.

At least one of the first rib 110 and the second rib 120 may have a vent hole 121 connected to the accommodation space.

At this time, the vent hole 121 may be formed in the concave portion of the first rib 110 or the concave portion of the second rib 120. According to this configuration, it is very useful when a plurality of cases 190 are stacked.

The case 190 may include a first case and a second case which are stacked on each other.

The first case may be a case in Fig. 4 and Fig. 5, and the second case may be a case in Fig. 4 and Fig.

The second surface 192 of the first case can be brought into contact with the first surface 191 of the second case by the stacking of the respective cases 190. [

The second rib 120 of the first case and the first rib 110 of the second case may be formed at positions where they match with each other. At this time, the matching positions may be positions where the second ribs 120 of the first case and the first ribs 110 of the second case are completely overlapped with each other as shown in FIG. 4, have.

When the vent hole 121 connected to the receiving space of the first case is provided in the second rib 120 of the first case, the hot air discharged through the vent hole 121 flows into the second rib 120 of the first case And may be discharged to the outside along the exhaust path 140 formed by the facing surface of the first rib 110 of the second case.

Meanwhile, the heat dissipating device of the present invention may be provided with a fan unit 150 for forcibly discharging the hot air in the receiving space to the outside of the case 190.

6 is a schematic view showing another heat dissipating device of the present invention.

The pan portion 150 is formed on the second surface 192. A third rib 130 may be formed on the second surface 192 of the case 190 so that the fan unit 150 functions normally in a structure in which a plurality of cases 190 are stacked. At this time, the third rib 130 may be connected to the second rib 120.

The hot air output from the receiving space through the pan unit 150 can be discharged to the outside through the third rib 130 and the second rib 120. [

Also, in this process, the heated air between the first ribs 110 and the second ribs 120 is also forcibly discharged due to heat conduction of the case 190, so that the heat radiation effect can be further increased.

The depressed portion 151 and the circulating fan 153 may be provided in the pan portion 150 to allow the hot air output through the pan portion 150 to flow into the third rib 130. [

The depression 151 may be concave on the second surface 192 of the case 190 and the third rib 130 may be connected.

The circulating fan 153 is installed in the depressed portion 151 and can discharge the hot air to the outside of the case 190 by rotation. Since the circulation fan 153 is installed in the depression 151, the operation of the circulation fan 153 is not restricted by the case 190 even if the other case 190 is stacked. Hot air can be output to the space formed by the depressed portion 151. The hot air output to the depression 151 may be guided to the first rib 110 or the second rib 120 through the third rib 130 connected to the depression 151.

7 is a schematic view showing states of the first rib 110 and the second rib 120 in another heat dissipation device of the present invention.

7, the first ribs 110 and the second ribs 120 extend in different directions. In the drawing, a state in which the extending direction of the first rib 110 and the extending direction of the second rib 120 are perpendicular to each other is exemplified.

According to this configuration, when the plurality of cases 190 are stacked, the contact area between the case and the case is limited to a point where the second rib 120 of the case and the first rib 110 of the case meet. That is, in the above case, the plurality of cases 190 can be contacted in point contact upon lamination.

According to this, the contact area between the cases 190 can be minimized. However, since the discharge structure of hot air becomes complicated, hot air may not be discharged smoothly.

Therefore, it is preferable that the embodiment of FIG. 7 is applied when the dissipation of heat conduction due to physical contact is the main target. In the case where the extending directions of the first ribs 110 and the second ribs 120 are the same, it is preferable that the present invention is applied to the case where hot air is solved more than solving heat conduction by physical contact.

On the other hand, if the first ribs 110 and the second ribs 120 have the same width and spacing, the exhaust passages 140 are closed due to installation errors during stacking of the case 190, .

8 is a schematic view showing a state in which the case 190 is improperly installed.

In other words, the plurality of first ribs 110 have the same width and spacing. Similarly, the second ribs 120 are formed to have the same width and spacing.

In this case, when the plurality of cases 190 are stacked, the projections formed on the first surface 191 due to the first ribs 110 may be inserted into the second ribs 120 if the stacking positions are wrong.

Accordingly, the exhaust passage 140, which is formed between the first rib 110 and the second rib 120, disappears, and the contact area between the first and second ribs 120 and 190 is increased.

This phenomenon may occur when a plurality of the first ribs 110 and the second ribs 120 are provided and the first ribs 110 and the second ribs 120 extend in the same direction.

1 to 3, a first guide 191 having a width greater than the width of the second rib 120 is provided on the first surface 191 of the case 190 to prevent stray phenomenon due to an error in the stacking position May be provided. Or the second surface 192 may be provided with a second guide 196 having a width greater than the width of the first rib 110.

Since the width of the first guide 195 is larger than the width of the second rib 120, even if the lamination position is wrong, the first guide 195 can not be inserted into the second rib 120. Therefore, according to the first guide 195, it is possible to prevent the plurality of cases 190 from being caught by the ribs.

Similarly, the width of the second guide 196 is greater than the width of the first rib 110, so that even if the stacking position is wrong, the second guide 196 can not be inserted into the first rib 110. Therefore, it is possible to prevent the plurality of cases 190 from being caught by the ribs by the second guide 196.

An installation groove 197 is formed on the first surface 191 of the case 190 so that the stacking of the respective cases 190 can be correctly performed. On the second surface 192 of the case 190, A protrusion 198 that fits into the protrusion 197 may be provided.

At this time, it is difficult to form the mounting groove 197 and the projection 198 on each rib.

The mounting groove 197 is provided on the first guide 195 formed on the first surface 191 and the projection 198 is provided on the second guide 196 formed on the second surface 192 .

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

110 ... first rib 120 ... second rib
121 ... vent hole 130 ... third rib
140 ... 150 by exhaust ...
151 ... depression 153 ... circulating fan
190 ... Case 191 ... first side
192 ... second face 193 ... third face
195 ... first guide 196 ... second guide
197 ... installation groove 198 ... projection

Claims

A case having a receiving space;
A first rib formed concavely on a first surface exposed to the outside of the case;
A second rib exposed outward from the case and recessed on a second surface opposite to the first surface;
A fan part formed on the second surface and discharging the hot air of the accommodation space to the outside of the case; And
And a third rib formed concavely on the second surface and connected to the pan portion,
And the third rib is connected to the second rib.

The method according to claim 1,
And at least one end of the first rib and the second rib is exposed to a third surface exposed to the outside of the case.

The method according to claim 1,
Wherein the first rib and the second rib extend in the same direction.

The method according to claim 1,
At least one of the first rib and the second rib has a vent hole connected to the accommodation space,
And the hot air inside the accommodation space is discharged to the outside of the accommodation space through the vent hole.

The method according to claim 1,
The case is stacked on the support in a first direction from the second surface toward the first surface,
Wherein the first rib and the second rib are formed at the same position in the vertical direction in the first direction.

The method according to claim 1,
The case is stacked on the support in a first direction from the second surface toward the first surface,
Wherein the first rib and the second rib are formed at different positions within a range overlapping each other in a vertical direction in the first direction.

The method according to claim 1,
The case includes a first case and a second case which are stacked on each other,
The second surface of the first case contacts the first surface of the second case,
The second rib of the first case and the first rib of the second case are formed at positions matching each other,
The matching position may be a position where the second rib of the first case completely overlaps with the first rib of the second case, or a different position within a range of overlapping each other,
The first rib of the second case is provided with a vent hole connected to the receiving space of the second case,
And the hot air discharged through the vent hole is discharged to the outside along an exhaust path formed by a second rib of the first case and a first rib of the second case.

delete

The method according to claim 1,
And a circulation fan installed in the depression and discharging the hot air to the outside of the case by rotation is provided on the pan portion,
And the third rib is connected to the depression.

The method according to claim 1,
The case is provided in plural,
Wherein each of the cases is stacked in a direction from the second surface toward the first surface in a state of being in close contact with each other,
Wherein a contact area of each of the cases is reduced by the first rib and the second rib.

11. The method of claim 10,
Wherein the first rib and the second rib extend in different directions.

The method according to claim 1,
Wherein the first rib and the second rib are provided in plural,
Each of the first ribs and the second ribs extending in the same direction,
A first guide having a width larger than a width of the second rib is provided on the first surface,
And a second guide having a width larger than the width of the first rib is provided on the second surface.

The method according to claim 1,
Wherein the first rib and the second rib are provided in plural,
A first guide having a width larger than a width of the second rib is provided on the first surface,
And a second guide having a width larger than the width of the first rib is provided on the second surface
The first guide is provided with an installation groove,
And the second guide is provided with a projection that fits in the installation groove.