JP3037422U - Fixing structure of radiating fins to the board in the radiator - Google Patents

Abstract

(57) Abstract: A radiation fin can be fixed to a substrate without providing a conventional caulking groove.
And make sure that it can be fixed more securely. SOLUTION: Grooves 2, 2 formed on a substrate 1 at equal intervals
.. fit the bases of the radiation fins 3, 3 ... In this state, an appropriate portion between the grooves 2, 2 ... Is hit and crushed by the pressure bodies 4, 4, ... Rush to. The radiating fins 3, 3 ... Are sandwiched and fixed by the pressed meat.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a structure for fixing a radiation fin to a substrate in a radiator.

[0002]

[Prior art]

 When manufacturing a radiator, a step of fixing the radiation fin to the substrate is necessary. Conventionally, in such a process, grooves for fitting the radiation fins are engraved at equal intervals on the substrate, caulking grooves are provided between the grooves, and the radiation fins are fitted to the grooves. In this state, the pressurizing body is moved along the caulking groove while applying force, and the meat on both sides of the caulking groove is pushed toward the groove side through the movement of the pressurizing body.

[0003]

[Problems to be solved by the device]

 However, according to such a conventional process, it is necessary to provide a caulking groove between the fin fitting grooves, and a cutting process is required to provide the caulking groove. Moreover, this results in high costs and large-scale equipment.

Further, since there is a caulking groove, this hinders the determination of the interval between the groove lines for fitting each fin. In other words, there are restrictions when trying to reduce the space between the grooves to accommodate a large number of fins. Moreover, the width of each groove is also restricted.

Furthermore, since the pressure body is moved along the caulking groove while simply rubbing, sufficient force cannot be applied. Therefore, the thickness of the substrate cannot be pushed sufficiently to the groove side, and the fixation tends to be insufficient.

The present invention has been made in view of the above point, and it is not necessary to provide a caulking groove as in the conventional case, and the meat of the substrate can be sufficiently pushed to the groove side with a simple tool. It is intended to provide a structure for fixing the heat radiation fin to the substrate in the heat radiator made possible.

[0007]

[Means for Solving the Problems]

 Thus, the gist of the present invention is that the base of the heat dissipation fin is fitted into the grooves formed in the substrate at equal intervals, and in this state, appropriate portions between the grooves are pressed. The structure of fixing the radiation fins to the substrate in the radiator is characterized in that the meat of the board is pressed and crushed by the body to squeeze the meat of the board toward the groove side, and the base of the heat dissipation fin is sandwiched and fixed by the gathered meat. It is in.

Further, as the pressing body, a pressing body having a rod or plate shape and a flat pressing surface, a pressing body having a mountain-shaped pressing surface, and a pressing surface having a semicircular center It is desirable to use a pressure body having a concave shape, a pressure body having a semi-circular shape at the center and a blade-like pressure portion at the outer edge.

In the case of a pressure body having a flat pressure surface among the pressure bodies, the pressure surface has a mesh-like notch, a small corrugation, or a needle-like protrusion. A large number may be provided, and this is more effective.

[0010]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a partial vertical sectional view of a first embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a partially enlarged view of a pressure body.

In the figure, 1 is a substrate of the radiator. Reference numerals 2, 2 ... Depict grooves formed on the substrate 1 at equal intervals. Reference numerals 3, 3 ... Depict heat radiating fins whose bases are fitted in the groove 2. Reference numerals 4, 4, ... Depict rod-like pressing bodies having a flat pressing surface 4a.

Thus, in this embodiment, the base portions of the radiation fins 3, 3 ... Are fitted into the grooves 2, 2, ... Of the substrate 1, and in this state, the grooves 2, 2 ,. .. The center portion between the pressure members 4, 4 ... Is struck from the top by the pressure member 4, 4 ... to crush it widely, and the meat of the substrate 1 is pushed toward the grooves 2, 2. The base parts of 3 ... are sandwiched and fixed.

Further, in the present embodiment, as the pressurizing member 4, a rod-shaped member having a quadrangular axial cross section is used, and as shown in FIG. 2, the rod is arranged in series between the grooves 2, 2 ... Although an example is shown, plate-like pressure bodies 4 ', 4' ... A having a rectangular axial cross section may be used as shown in FIG. Further, the rod-shaped pressurizing body 4 may have an axial cross-sectional shape of a circle, a diamond, or the like.

Next, a second embodiment of the present invention shown in FIGS. 5 and 6 will be described. The difference between the present embodiment and the first embodiment is the difference in the pressure body used. That is, the pressing bodies 4 and 4'used in the first embodiment have flat pressing surfaces, but the pressing body 5 of the present embodiment has the pressing surface 5a in a chevron shape. Thus, in the case of this embodiment, when the pressure bodies 5, 5, ... Are hit from above to apply pressure, the meat of the substrate 1 is pushed toward the groove 2 side by the inclined surface as indicated by the arrow mark. Is. Since the other configurations are the same as those in the first embodiment, detailed description will be omitted. Further, the first embodiment and the present embodiment are particularly effective when the spacing between the grooves is narrow.

Next, a third embodiment of the present invention shown in FIGS. 7 and 8 will be described. The difference between the present embodiment and the first embodiment is the difference in the pressure body used. That is, in the first embodiment, the pressing surface is flat, whereas in the pressing body 6 of the present embodiment, the pressing surface 6a has a shape in which the center is depressed in a semicircular shape. ing. Thus, in the case of this embodiment, when the pressure bodies 6, 6, ... Are hit and pressed from above, the meat of the substrate 1 is pushed to the outside of the pressure surface 6a as indicated by the arrow. . Further, this embodiment is particularly effective when the spacing between the grooves is wide.

Next, a fourth embodiment of the present invention shown in FIGS. 9 and 10 will be described. The difference between the present embodiment and the first embodiment is the difference in the pressure body used. That is, in the first embodiment, the pressing surface is flat, whereas in the pressing body 7 of the present embodiment, the pressing surface 7a is recessed in a semicircular shape at the center and the outer edge portion is Is used as a blade-shaped pressing portion 7b. Thus, in the case of the present embodiment, when the pressure body 7 is hit from above to apply pressure, the flesh of the substrate 1 is pushed toward the groove 2 side by the recessed portion and the blade-like pressure portion 7b. is there. Since the other configurations are the same as those in the first embodiment, detailed description will be omitted. The present embodiment is also particularly effective when the spacing between the grooves is wide.

[0017]

[Effect of the invention]

 Since the present invention has the structure and operation as described above, it is not necessary to provide the caulking groove as in the conventional case, and the radiating fin can be fixed to the substrate without the groove. Therefore, the conventional problems due to the provision of the caulking groove can be eliminated. In addition, since the appropriate portion between each groove is crushed by hitting it with a pressurizing body from above, the meat of the substrate is pushed toward the groove side and the base of the heat radiation fin is sandwiched by this meat. The tightening force is stronger than the conventional pressurizing body that moves and pressurizes, so that a secure fixing can be performed. Moreover, since it does not require large-scale equipment and can be performed with simple tools, it is possible to manufacture a wide variety of products in small quantities, from large to small, and at low cost.

[Brief description of the drawings]

FIG. 1 is a partial vertical sectional view of a first embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment of the present invention.

FIG. 3 is a partially enlarged view of the pressing body used in the first embodiment of the present invention.

FIG. 4 is an explanatory diagram of a modified example of the first embodiment of the present invention.

FIG. 5 is a partial vertical sectional view of a second embodiment of the present invention.

FIG. 6 is a partially enlarged view of a pressing body used in the second embodiment of the present invention.

FIG. 7 is a partial vertical sectional view of a third embodiment of the present invention.

FIG. 8 is a partially enlarged view of a pressure body used in the third embodiment of the present invention.

FIG. 9 is a partial vertical sectional view of a fourth embodiment of the present invention.

FIG. 10 is a partially enlarged view of a pressing body used in the fourth embodiment of the present invention.

[Explanation of symbols]

 1 Substrate 2, 2 Grooves 3, 3 Radiating fins 4, 4 Pressurizing body 4a Pressurizing surface 5, 5 Pressurizing body 5a Pressurizing surface 6, 6 Pressurizing body 6a Pressurizing surface 7, 7 Pressurizing body 7a Pressurizing surface 7b Blade Shaped pressure part

Claims (8)

[Utility model registration claims] 1. A base portion of a radiation fin is fitted into grooves formed in a substrate at equal intervals, and in this state, an appropriate portion between the grooves is struck by a pressing body from above to be crushed. The structure for fixing the radiating fins to the substrate in the radiator is characterized in that the flesh of the radiating fin is pushed toward the groove side, and the radiating fin is sandwiched and fixed to the base of the radiating fin. 2. The structure for fixing a radiation fin to a substrate in a radiator according to claim 1, wherein the pressure body is a rod or a plate and has a flat pressure surface. 3. The radiator according to claim 1, wherein the pressing body is a pressing body having a rod-like or plate-like shape, the pressing surface being flat, and the pressing surface having mesh-like notches. Fixing structure of radiation fins. 4. The radiator according to claim 1, wherein the pressure body is a rod or a plate, the pressure surface is flat, and the pressure surface has small corrugations. Fixing structure of radiation fins. 5. The substrate of the radiator according to claim 1, wherein the pressing body is a pressing body having a rod or plate shape, the pressing surface is flat, and a large number of needle-like protrusions are provided on the pressing surface. The fixing structure of the heat radiation fin. 6. The fixing structure of a radiation fin to a substrate in a radiator according to claim 1, wherein the pressing body is a pressing body having a rod or plate shape and a pressing surface having a chevron shape. 7. The heat dissipating fin for a substrate in a radiator according to claim 1, wherein the pressurizing body is a pressurizing body in the form of a rod or a plate, and the pressurizing surface has a shape in which the center is depressed in a semicircular shape. Fixed structure. 8. The pressing body is a pressing body having a rod-like or plate-like shape, the pressing surface having a semicircular center depression, and the outer edge portion serving as a blade-like pressing portion. Fixing structure of the radiation fin to the substrate in the radiator of.