JP2001127473A - Radiator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radiator which can be improved in heat radiating efficiency and can be assembled easily. SOLUTION: A radiator is provided with a base plate 2, a plurality of thin plate fins 3 which are arranged in parallel with each other at intervals on the plate 2, and cover plates 6 which covers the front end sections of the groups of the plate fins 3. Each cover plate 6 has falling sections 6a which fall at arbitrary angles from both edges of the plate 6 and notches into which the front ends of the plate fins 3 are inserted in both edge sections of the plate 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiating fin for removing heat-generating objects such as electronic and electric equipment.

[0002]

2. Description of the Related Art In electronic and electrical equipment, a radiator is widely used in order to suppress a decrease in equipment performance due to heat generation. FIG. 8 shows an example of such a radiator. Radiator 1
Has a base plate 2 and a plurality of thin plate-shaped plate fins 3 arranged in parallel on the base plate 2 at intervals. At this time, each plate fin 3 is arranged so as to be substantially orthogonal to the plate surface of the base plate 2. The radiator fan 4 is a radiator 1
The plate fins 3
Between them, cooling air W is supplied from the heat radiating fan 4 to enhance the heat radiating effect.

[0003]

By the way, in the above-mentioned conventional radiator, the tip (upper end) of the plate fin 3 is not restrained, so that the fin pitch on the tip side is not as set, and the gap between the plate fins 3 is reduced. There is a problem that a difference occurs in the flow rate of the cooling air W flowing, and the heat radiation effect of the plate fins 3 is biased. Further, since the upper part of the plate fins 3 is open, the cooling air W leaks upward, and the amount of air passing between the plate fins 3 on the downstream side is smaller than that on the upstream side, so that the heat radiation performance is deteriorated. there were. As means for solving such a problem, the base plate 2 is conventionally provided also on the distal end side of the plate fin 3. However, plate fins 3
When it is attached to the base plate 2 on both the base end side and the front end side, the weight becomes heavy, and it is necessary to fix not only the base end side of each plate fin 3 but also the front end side, so that the difficulty in assembling increases. Was.

[0004] In view of the above circumstances, it is an object of the present invention to provide a radiator capable of improving heat radiation efficiency and being easily assembled.

[0005]

According to a first aspect of the present invention, there is provided a radiator including a base plate, a plurality of thin plate fins arranged in parallel with each other at intervals on the base plate, and a tip end of the plate fin group. A cover plate, and the cover plate is provided with a flat portion, and a falling portion falling at an arbitrary angle on both side edges of the flat portion, and the falling portion further includes A notch into which the tip of the plate fin is inserted is provided.

In this radiator, the fin pitch can be maintained at a predetermined size by restricting the tip of the plate fin by the cover plate. Also,
Since the cover plate serves as the lid, the cooling air is prevented from leaking upward. The cover plate is provided with cuts, so insert the ends of the play and fins into these cuts and join (brazing, bonding, etc.)
By doing so, it can be easily attached. The angle of the falling portion is arbitrary, and may fall vertically from the flat portion, or may fall at an acute angle so that the tips of both side edges face inward, or spread outward. The angle may be obtuse. Further, the falling portions at both side edges may fall at different angles.

A radiator according to a second aspect is characterized in that, in the radiator according to the first aspect, a tip portion of the group of plate fins is covered with a plurality of the cover plates.

[0008] Since a plurality of cover plates can be attached in this manner, the present invention can be applied to a radiator having an arbitrary width and length by combining the cover plates. It is desirable that the interval between the cover plates is 10 mm or less. This is because if the distance is longer than this, the amount of cooling air leaking upward increases.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A radiator according to the present invention will be described below with reference to the drawings. As shown in FIG.
Includes a base plate 2, a plurality of plate fins 3 fixed to the plate surface of the base plate 2, and a cover plate 6 that covers the tip of the group of plate fins 3. A radiating fan 4 for supplying cooling air W is provided between the plate fins 3. The plurality of plate fins 3 fixed to the plate surface of the base plate 2 have a thin plate shape, and are arranged on one surface of the base plate 2 at intervals in the width direction of the radiator 11.

One or more (two in this example) cover plates 6 are provided in the plate fin 3 group. The distance Δx between these cover plates 6 is Δx = 0 to 1
It is set between 0 mm. The cover plate 6 has a falling portion 6a and a flat portion 6b as shown in FIGS. Falling portions 6a that fall vertically on both side edges of the flat portion 6b are provided.
The cut 8 is provided equal to the fin pitch of the plate fin 3. The cut has the shape shown in FIG. That is, the notch 8 includes a rectangular portion 8a provided over the falling portion 6a and the flat portion 6b, into which the tip of the plate fin 3 is inserted, and a guide portion 8b which becomes wider at the lower end of the falling portion 6a. ing. Rectangular part 8a
Is wider than the width of the plate fin 3 so that the tip of the plate fin 3 can be inserted. The cover plate 6 has cuts 8 formed at both ends of the flat plate,
It is formed by bending a predetermined width from both ends.

The plate fins 3 are attached to the base plate 2. As shown in FIG. 3, grooves 2a are formed on the base plate 2 at a predetermined fin pitch.
After the plate fins 3 are fitted into the grooves 2 a, the ends of the plate fins 3 are inserted into the cuts 8 provided in the cover plate 6. And while joining the cover plate 6 and the plate fin 3,
The base plate 2 and the plate fins 3 are fixed at the edge of the groove 2a of the base plate 2.

As described above, in this embodiment, by disposing the guide plate 6 at the tip of the plate fin 3, the fin pitch of the plate fin 3 can be maintained, thereby improving the cooling efficiency. Further, since the plate fins 3 are merely inserted into the cuts 8 and joined, the assembling can be easily performed. At this time, since the guide 8b is formed in the cut 8, the tip of the plate fin 3 is guided by the guide 8b, and can be easily inserted into the rectangular portion 8a. Further, since the fin pitch is held as described above, even when the plate fin 3 is fixed to the base plate 2, the fin pitch can be easily fixed without changing the fin pitch.

Further, the guide plate 6 prevents the cooling air W from leaking, so that the cooling efficiency can be improved. Further, by attaching the plurality of guide plates 6 as shown in FIG. 1, the cooling air W passing near the falling portion 6a becomes turbulent, and the heat radiation of the plate fins 3 is promoted, thereby improving the cooling efficiency. Further, since the separation distance between the guide plates 6 is set to 10 mm or less, the above-described respective effects can be obtained while suppressing the leakage of the cooling air W.

The present invention may have the following modes.
As shown in FIG. 5, three (or more) guide plates 6 may be attached. By thus attaching the guide plates 6 in combination, the present invention can be applied to base plates 2 'and plate fins 3' of various sizes. Further, as shown in FIG. 6, a guide plate 6 'in which cuts 8' of a pitch different from that of the guide plate 6 of FIG. 4 may be formed. The plate fins 3 may be inserted into all of the cuts 8 ′, or, for example, the plate fins 3 may be inserted every other one. Further, in each of the above examples, the falling portion 6a of the guide plate 6 is vertically lowered, but the invention is not limited to this. For example, it may be formed to fall at an acute angle as shown in FIG. 7A, or may be formed at an obtuse angle as shown in FIG. Further, the falling portions of both side edges may be formed at different angles. That is, any combination of the above vertical, acute, and obtuse angles can be employed, such as forming one vertical and the other acute.

[0015]

As described above, in the present invention, by disposing the guide plate at the tip of the plate fin, the fin pitch of the plate fin can be maintained, and the cooling efficiency is improved. Further, since the plate fins are simply inserted into the cuts and attached, the assembling can be easily performed. Furthermore, the cooling efficiency can be improved by the guide plate preventing leakage of the cooling air.

[Brief description of the drawings]

FIG. 1 is a perspective view of a radiator shown as one embodiment of the present invention.

FIG. 2 is a guide plate used in the radiator, wherein (a) is a top view and (b) is a side view.

FIG. 3 is a view showing an attached state of the guide plate, as viewed from a direction in which cooling air passes.

FIG. 4 is a partially enlarged view of the guide plate, and FIG.
Is a top view, and (b) is a front view.

FIG. 5 is a view showing a radiator shown as a modification.

FIG. 6 is a partially enlarged view of a guide plate shown as a modification, (a) is a top view, and (b) is a front view.

FIG. 7 is a side view of a guide plate shown as a modification.

FIG. 8 is a perspective view showing a conventional radiator.

[Explanation of symbols]

 2 Base plate 3 Plate fin 6 Cover plate 6a Falling part 8 Cut 11 Heat radiator

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kimiharu Yuyama 194 Chifuku, Susono-shi, Shizuoka F-term in Mf Fabtech Chifuku Factory (reference) 5E322 AA01 BA03 BA05 BB03

Claims (3)

[Claims] 1. A base plate, a plurality of thin plate fins arranged in parallel with each other at intervals on the base plate, and a cover plate covering a tip end of the plate fin group, wherein the cover plate includes: A flat portion and a falling portion falling at an arbitrary angle on both side edges of the flat portion are provided, and the falling portion is provided with a cut into which the tip of the plate fin is inserted. A radiator characterized in that: 2. The radiator according to claim 1, wherein a tip portion of the group of plate fins is covered by one or more cover plates. 3. The radiator according to claim 1, wherein the cover plate is attached to the plate fin.