JPH09324995A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger which can firmly determine a distance between radiation members and pin fins, can efficiently discharge drain water, and has a small ventilation resistance and a high productivity. SOLUTION: This heat exchanger comprises a plurality of flattened heat exchange pipes 3 which are arranged in parallel, headers which support both ends of the heat exchange pipes 3 and supply a working fluid to the heat exchange pipes 3, a plurality of radiation members 20 which are made of a strip sheet and are combined with the heat exchange pipes 3 in such a manner that the radiation members 20 are stacked in layers in the same direction and have their longitudinal direction arranged approximately perpendicular to the longitudinal direction of heat exchanging pipes 3, and a plurality of needle-like pin fins 13 which are formed by punching the radiation members 20. The radiation members 20 are provided with cut-and-bent portions 21 on one surface thereof which determine the distance between the stacked radiation members 20, wherein each cut-and-bent portion 21 is formed by cutting and bending a portion of the radiation member 20 at a given angle inclined relative to the longitudinal direction and a lateral direction of the radiation member 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger used in, for example, an outdoor unit or an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art A pin fin type heat exchanger has been developed as a heat exchanger which is smaller and thinner and has a higher heat exchange performance than conventional plate fin type heat exchangers. An example of this pin fin type heat exchanger is shown in FIG.

As shown in FIG. 1B, this heat exchanger has a flat heat exchange pipe 1 having an upper surface 1a and a lower surface 1b formed into a substantially flat surface. The heat exchange pipes 1 are arranged in parallel in the vertical direction at equal intervals in a state where the upper and lower surfaces of the heat exchange pipes 1 face each other.

A plurality of pin (needle) -shaped fins 2 (hereinafter referred to as "pin fins") are arranged in a matrix between the adjacent heat exchange pipes 1. The pin fins 2 are fixed by brazing the upper end and the lower end to the upper surface 1a and the lower surface 1b of the heat exchange pipe 1 located above and below, respectively.

According to such a heat exchanger, since the heat exchange pipe 1 is flat, the flow rate of the refrigerant can be increased without increasing the ventilation resistance. Further, the pin fin 2 has a small ventilation resistance and a high heat exchange rate. Therefore, according to such a pin fin type heat exchanger, sufficient heat exchange performance can be obtained even when the pin fin type heat exchanger is smaller than the conventional plate fin type heat exchanger.

By the way, in the above-mentioned pin fin type heat exchanger, fixing of the pin fins 2 is troublesome, and there is a possibility that the pin fins 2 are deformed during the fixing work. Therefore,
In recent years, a pin fin type heat exchanger has been developed in which the pin fins 2 can be easily attached and the risk of deforming the pin fins 2 is small.

This heat exchanger is as shown in FIG. 10, and like the above-mentioned heat exchanger, a plurality of flat heat exchange pipes 3 whose upper and lower surfaces are formed to be substantially flat surfaces.
Having. These heat exchange pipes 3 are arranged in parallel in the vertical direction at equal intervals.

As shown in the figure, headers (refrigerant tubes) 4 and 4 for circulating a refrigerant in the heat exchange pipes 3 are connected to both ends of each heat exchange pipe 3, respectively. A partition plate 5 is provided in the middle of one of the headers 4 in the vertical direction, a refrigerant inlet pipe 6 is attached to the upper end side, and a refrigerant outlet pipe 7 is attached to the lower end side.

As shown in FIG. 10, the heat exchange pipe 3 is
Is a strip plate-shaped heat radiating material 10 formed with a large number of pin fins 13 to be described later, the longitudinal direction of which is orthogonal to the heat exchange pipes 3 and the plate surface thereof is shown in FIG. It is attached in a state in which a plurality of sheets are laminated in the same direction as the ventilation direction.

The heat dissipating material 10 is a thin aluminum strip having a thickness of about 0.1 to 0.3 mm. As shown in FIG. 11, the heat exchanging pipes 3 are arranged in the heat radiating material 10 at intervals e corresponding to the heat exchanging pipes 3 along the longitudinal direction.
A plurality of holding holes 11 ... (Holding portions) that fit with.

Further, a portion of the holding holes 11 ... Abutting on the upper and lower surfaces of the heat exchange pipe 3 is bent (projected) to one surface side of the heat radiating material 10 to form a stacking interval of the heat radiating material 10. A regulating piece 10a for regulating is provided. The width of the restriction piece 10a is about 0.2 to 3.0 mm.

Then, as shown in the figure, at the portion corresponding to the space between the holding holes 11 that are vertically adjacent to each other, that is, the space between the heat exchange pipes 3 that are adjacent to each other, as shown in FIG. A large number of slits 12 along the longitudinal direction are provided at predetermined intervals (about 0.1 to 0.4 mm).

Due to the slit 12, the heat dissipation material 1 is formed.
At 0, pin fins 13 having a prism cross section with a side of 0.1 to 0.4 mm are formed. According to such a heat exchanger, it is not necessary to mount a large number of pins on the heat exchange pipes 3 ... One by one. Therefore, it may be possible to facilitate and simplify the assembly of the pin fin type heat exchanger, and to effectively prevent the pin fin 13 from being bent.

Further, since the time required for assembling the heat exchanger can be shortened and the whole heat exchanger can be brazed collectively, the productivity of the pin fin type heat exchanger is improved.

Further, since the pin fins 13 have a prismatic shape with a fine cross section, the boundary layer of the air flow is very thin, and a pin fin type heat exchanger having high heat exchange performance (heat transfer characteristics) can be obtained.

By the way, in the heat exchanger described above,
It is important to secure a space between the finely formed pin fins 13. In this heat exchanger, the distance between the pin fins 13 in the direction along the ventilation direction (a) is set to the above-mentioned heat radiating material 10.
It is defined by the width of the slit 12 formed in the.

Further, the distance between the pin fins 13 in the direction orthogonal to the ventilation direction, that is, in the direction along the longitudinal direction of the heat exchange pipe 3, is restricted by the holding portion formed on the heat radiating material 10. It is defined by the piece 10a.

However, in such a structure, only the upper and lower ends of the pin fin 13 are restricted, and the deformation of the pin fin 13 in the middle thereof cannot be restricted. Therefore, as shown in FIGS. 11 and 12, there has been devised a technique of providing a cut-and-raised portion indicated by 14 in the drawing at a position corresponding to a midway portion of the pin fin 13 and regulating the interval thereof.

[0019]

By the way, the above-mentioned heat exchanger has the following problems to be solved. That is, as shown in FIG. 13 (a), the regulation of the interval between the pin fins 13 by the cut-and-raised portions 14 causes the tip end surface of the cut-and-raised portions 14 to abut on the back surface of the adjacent heat dissipation member 10. By doing.

However, when the adjacent heat dissipating materials 10 are displaced from each other in the longitudinal direction, the tip ends of the cut-and-raised parts 14 are adjacent to each other, as shown in FIG. The pin fin 1 is fitted into the opening (shown by 15 in the figure) after the cut-and-raised portion 14 formed in the
In some cases, the interval of 3 cannot be regulated.

That is, when assembling the heat exchanger, first, the large number of heat radiation members 10 are attached to the holding portion 11.
Are laminated and held in the same direction in a state where they are aligned with each other, and after aligning them, the heat exchange pipe 3 and the header 4 are combined.

When the laminated layers are held, the adjacent heat dissipating members 1
If 0s are slightly displaced from each other in the longitudinal direction, the heat radiating material 1 in which the cut-and-raised parts 14 are adjacent to each other when aligning them
It penetrates into the opening 15 formed in 0.

Further, during the cooling operation or the dehumidifying operation, dew condensation may occur on the surface of the heat dissipation material 10. Water droplets generated by this condensation (hereinafter referred to as "drain water")
Is radiated to the lower part along the heat dissipation material and discharged from the heat exchanger.

However, in the above-mentioned structure, the upper surface of the cut-and-raised portion 14 is parallel to the width direction of the heat dissipation material 10,
And it is orthogonal to the vertical direction. Therefore, the drain water that has propagated through the heat dissipating material 10 may collect on the upper surface of the cut and raised portion, and the drain water may not be discharged well.

As a constitution for preventing such a situation, as shown in FIG. 14, the cut and raised portion 14 is formed so as to be parallel to the longitudinal direction of the heat radiating material 10, or shown in FIG. It is conceivable that the cut-and-raised portion 14 is formed in a trapezoidal shape so that the width of the protruding end portion is larger than the width of the base end portion.

In the former case, when the heat dissipating material 10 is displaced in the width direction, the same problem as in the above case occurs. Further, according to such a shape, unlike the above-described configuration, drainage water dischargeability is improved, but since the cut-and-raised portion 14 faces the ventilation direction (a), ventilation resistance is increased. The problem of increase arises.

In the latter case, since the width of the projecting end of the cut-and-raised portion 14 is large, the cut-and-raised portion 14 is less likely to fit into the opening 15. However, with such a shape, it is not possible to perform “punching” and “raising” of the cut and raised portion 14 at the same time,
The molding process may be complicated because it has to be performed in separate steps.

The present invention has been made in view of such circumstances, and it is possible to reliably regulate the distance between the heat radiating material and the pin fins, the drainage water is discharged well, and the ventilation resistance is small.
It is also intended to provide a heat exchanger with good productivity.

[0029]

The first means of the present invention supports a plurality of heat exchange pipes arranged in parallel and the end portions of the plurality of heat exchange pipes, and the heat exchange pipes are supported. A plurality of heat exchange pipes, which are in the form of strips and are stacked in the same direction as the header that supplies the working fluid, are stacked in the same direction with the longitudinal direction substantially orthogonal to the longitudinal direction of the heat exchange pipes. In the heat exchanger including the heat dissipation material, the heat dissipation material is cut and raised on one surface side of the heat dissipation material so as to be inclined at a predetermined angle with respect to the longitudinal direction and the width direction of the heat dissipation material. It is a heat exchanger characterized by having a cut-and-raised part which regulates a lamination interval of a heat dissipation material.

A second means is the heat exchanger of the first means, wherein the heat dissipation material comprises linear fins composed of a plurality of slits along the longitudinal direction of the heat dissipation material,
The cut-and-raised portion is a heat exchanger characterized in that it is formed at a position corresponding to an intermediate portion in the longitudinal direction of the linear fin.

According to a third means, in the heat exchanger of the first means, the cut-and-raised portion is cut-and-raised so as to be inclined at a predetermined angle with respect to the height direction and the ventilation direction of the heat exchanger. It is a heat exchanger that is characterized by being.

A fourth means is the heat exchanger of the first means, wherein the cut-and-raised portions are provided on one side portion and the other side portion in the width direction of the heat dissipation member, and are provided on the one side portion. The heat exchanger is characterized in that the cut-and-raised portion and the cut-and-raised portion provided on the other side portion are cut and raised so as to be inclined at different angles.

A fifth means is the heat exchanger of the fourth means, in which the cut-and-raised portion provided on the one side and the cut-and-raised portion provided on the other side have an angle orthogonal to each other. It is a heat exchanger characterized by being cut and raised.

A sixth means is characterized in that, in the heat exchanger of the first means, the width of the cut-and-raised portion on the base end side is equal to or larger than the width of the cut-and-raised portion on the projecting end side. It is a heat exchanger.

According to this structure, the cut-and-raised portion can regulate the distance between the heat-dissipating material and the pin fins, the drainage water can be discharged well, the ventilation resistance can be reduced, and the heat exchanger can be manufactured with high productivity. You can

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to 0. The same components as those of the heat exchanger described in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

The heat exchanger of the present invention is of the same type as the pin fin type heat exchanger shown with reference to FIGS. 10 and 11, and is formed in a flat shape and arranged in parallel in the vertical direction. 3, a header 4 that supports both ends of the heat exchange pipe 3, and a large number of heat radiation materials that are combined in a stacked state on the heat exchange pipe 3 (corresponding to the heat radiation material shown by 10 in the figure). And.

Of these constituent elements, the heat exchange pipe 3 and the header 4 are the same as those in the heat exchanger shown in FIG. 10, and therefore their explanations are omitted, and the heat radiating material which is the main part of the present invention is omitted. Only explained. The same components as those in the conventional example are designated by the same reference numerals.

The heat dissipating material 20 of the present invention is shown in a partially enlarged manner in FIG. 1, and is formed at a predetermined interval e along the longitudinal direction of the strip member, and is disposed on one side of this heat dissipating material 20. A holding portion 11 that opens in a U-shape, a restricting piece 10 a that is provided upright from the periphery of the holding portion 11, a plurality of slits 12 punched between the holding portions 11, and the slits 12.
The pin fin 13 is formed in a line (needle) shape, and the cut-and-raised portion 21 is cut and raised at a position corresponding to an intermediate portion of the pin fin 13.

Unlike the conventional example, the cut-and-raised portion 21 of the present invention is a rectangular piece which is inclined at an angle of about 45 ° with respect to the longitudinal direction of the heat radiating material 20 (longitudinal direction of the pin fin 13). It is bent upright along a line inclined at about 45 °.

Therefore, the opening 22 formed after the cut-and-raised portion 21 is cut-and-raised is also a rectangular shape inclined at an angle of 45 degrees with respect to the longitudinal direction of the pin fin 13.

Next, a method of molding the heat dissipation material 20 will be described. FIG. 3A shows the aluminum thin plate 2 having a thickness of 0.1 to 0.3 mm, which is a material of the heat dissipation material 20.
4 (hereinafter abbreviated as "thin plate"). From this thin plate 24, the heat dissipation material 20 having a width h is shown, for example, in the figure by a dashed line (b).
It is molded for 4 rows so as to be separated by. That is, the width H of the thin plate 24 is H = 4h.

First, as shown in FIG. 3B, a plurality of feed holes 25 ... Are formed in a matrix on the thin plate 24. This feed hole 25 has a width 2 of the thin plate 24.
It is formed at a rate of three per h (for two rows), and is formed in a plurality of rows at intervals e (the same as the arrangement interval e of the heat exchange pipes 3) along the feeding direction indicated by the arrow (c) in the figure.

The thin plate 24 is intermittently driven and driven in the direction of the arrow (c) using the feeding holes 25. Then, as shown in FIG. 6A, this thin plate 2
The space between the feed holes 25 ...
A plurality of slits indicated by 2 are pressed (punched) at predetermined intervals in the width direction of the thin plate 24.

At the time of performing this press working, a positioning pin (not shown) is inserted into the feed hole 25 to insert the thin plate 2 into it.
Perform the final positioning of 4 precisely. In this way, the slits 12 are sequentially formed between the feeding holes 25 each time the thin plate 24 is driven by intermittent feeding and positioned.

By forming the slits 12 ... As shown in FIG.
.. are formed at the width intervals of the slits 12.

On the other hand, as shown in FIG. 4A, notches 27 connecting these three feed holes 25 adjacent to each other in the width direction of the thin plate 24 are sequentially formed.
The slit 12 ... And the notch 27 are formed in the thin plate 24.
.. is provided, the thin plate 22 is cut along the alternate long and short dash line (b) and taken out as the heat radiating material 20, as shown in FIG.

Then, the cut 2 of the heat dissipation material 20
The portion where 7 is provided is bent along the alternate long and short dash line (d) shown in the figure to form the above-described restriction piece 10a. Further, by this, the above-mentioned U-shaped holding hole 11 is configured by the feeding hole 25 and the base end portion of the restriction piece 10a.

At the same time, at both end portions in the width direction of the heat dissipation member 20 corresponding to the middle portion of the slit 12,
The cut and raised portion 21 described above is provided. This cut-and-raised part 21
Punches this heat dissipating material 20 into a rectangular shape that makes an angle of 45 ° with respect to the longitudinal direction of the heat dissipating material 20, and bends it up along a line that also makes an angle of 45 ° with respect to the longitudinal direction of the heat dissipating material 20. Formed by raising.

The forming (punching and raising) of the cut-and-raised portion 21 and the bending of the regulating piece 10a are performed collectively using the same die.
The height of the restriction piece 10a and the height of the cut-and-raised portion 21 are formed to have a size equal to the stacking interval of the heat dissipation material 20.

Each heat dissipating material 20 pressed in this way
A plurality of sheets are held in the same direction by making the positions of the holding holes 11 coincide with each other. Further, a large number of heat dissipation materials 20 thus laminated and held are placed on a work table 30 shown in FIG. 6, and a pressing jig (not shown) is used for each heat dissipation material 2.
The heat dissipating members 20 are aligned in the longitudinal direction and the width direction by bringing them into contact with both ends in the longitudinal direction and one side in the width direction.

In addition, this also corrects the displacement of the heat radiating material 20 in the longitudinal direction and the lifting in the width direction.
The stacking intervals of the heat dissipating members 20 are set such that the plurality of heat dissipating members 20 are pressed in the stacking direction and the projecting end faces of the restricting pieces 10a and the cut-and-raised portions 21 are placed on the back surface of the heat dissipating members 20 adjacent in the stacking direction. By contacting them, they are uniformly arranged.

As shown in FIG. 6, the heat exchange pipes 3 are combined with the heat dissipating members 20 ... Aligned in this way. The heat exchange pipe 3 is positioned facing the holding portion 11 and is slidably inserted from the lateral direction so as to be combined with the heat dissipation member 20.

Finally, the headers 4 are combined with both ends of the heat exchange pipe 3, and the temporary assembly of this heat exchanger is completed. When the temporary assembly is completed in this manner, the heat exchanger is put into the heating furnace, and the parts are brazed to each other in the heating furnace. This completes the pin fin type heat exchanger of the present invention.

According to this structure, the following effects can be obtained. In the one embodiment, the pin fin 13
In order to regulate the separation distance of the heat dissipation member 20, the surface of the heat dissipation member 20 is about 45 ° with respect to the longitudinal direction and the width direction of the heat dissipation member 20.
A cut-and-raised portion 21 cut and raised so as to be inclined was provided.

According to the cut-and-raised portion 21, when the laminated heat dissipating material 20 is placed on the work table 30, the adjoining heat dissipating materials 20 are arranged as shown in FIG. 2 (a). The heat dissipating material 20 is displaced in the longitudinal direction, or (b) in FIG.
As shown in the drawing, the heat radiating material 20 in which the tip ends of the cut-and-raised portions 21 are adjacent to each other even when the heat-dissipating material 20 is displaced in the width direction as shown in FIG.
It does not enter into the opening 22 of the.

When the heat dissipating members 20 adjacent to each other are displaced from each other by 45 °, the cut-and-raised portion 2 is formed.
It is conceivable that the tip portion of 1 enters into the opening 22. However, normally, when the laminated heat dissipation material 20 is placed on the workbench 30, the heat dissipation material 20 is likely to shift in the longitudinal direction along the surface of the workbench 30. Further, in order to correct this deviation, when the pressing jig is brought into contact with both ends of the heat radiating material 20 in the longitudinal direction, the central portion of the heat radiating material 20 may be lifted up and easily displaced in the width direction.

Therefore, as described above, there is little deviation from the direction of 45 °, and it is almost unlikely that the cut-and-raised portion 21 enters the opening 22.

Further, in this embodiment, as shown in FIG. 1, the cut-and-raised portion 21 provided on one side in the width direction of the heat dissipation member 20 and the cut-and-raised portion 21 provided on the other side thereof. The surface makes an angle of 90 ° and is formed in a substantially V-shape.

Therefore, even if the heat dissipating material shifts in the direction of 45 °, neither of the two cut-and-raised parts 21 fits into the opening 22, and the distance between the pin fins 13 is maintained. It has become so.

As a result, even if an external force is applied to align the heat dissipating members 20, the pin fins 13 are less likely to be displaced from each other. Therefore, the pin fin type heat exchange having higher reliability and performance is achieved. There is an effect that can be obtained.

Secondly, since the cut-and-raised portion 21 is formed at an angle of 45 ° with respect to the longitudinal direction, when dew condensation occurs on the surface of the heat radiating material 20 and the pin fins 13 during the cooling operation. Also, the drain water does not collect in the cut-and-raised portion 21 and drops along the 45 ° inclined surface of the cut-and-raised portion 21.

As a result, unlike the cut-and-raised portion 14 of the conventional example shown in FIGS. 11 and 12, the drain water is not obstructed, and the heat exchange performance can be favorably maintained. .

Thirdly, the surface of the cut-and-raised portion 21 is provided so as to form an angle of 45 ° also with the ventilation direction (a). Therefore, the ventilation resistance can be made smaller than that of the cut-and-raised portion 14 of the conventional example shown in FIG. 14, and there is an effect that the heat exchange performance can be favorably maintained.

Fourth, since the cut-and-raised portion 21 has a rectangular shape and the width of the projecting end portion and the base end portion is the same, unlike the trapezoidal-shaped cut-and-raised portion shown in the conventional example of FIG. It can be molded in one step.

Therefore, since the cut-and-raised portion 21 is easily formed, there is an effect that the productivity of the pin fin type heat exchanger is improved. It should be noted that the present invention is not limited to the above-described embodiment, and can be variously modified without changing the gist of the invention.

For example, the pin fins 13 provided on the heat dissipating member 20 are linear, but may be bent in a wavy shape as long as they are linear. In addition, the cut-and-raised portion 21 forms an angle of 45 ° with the longitudinal direction of the heat dissipation material 20.
However, the present invention is not limited to this, and the angle θ with the longitudinal direction of the heat dissipation member 20 may be in the range of 0 ° <θ <90 °. .

When the heat exchanger is installed in an indoor unit, for example, the heat radiating member 20 is tilted by a predetermined angle from the vertical direction in order to reduce the height of the indoor unit. It may be installed in.

In this case, in addition to the above conditions, the cut-and-raised portion 21 has the ventilation direction (a) so that the cut-and-raised portion 21 does not become a ventilation resistance or hinder drain water discharge. It is necessary to add two conditions: non-orthogonal and non-orthogonal.

Furthermore, in the above-described embodiment, the cut-and-raised portions 21 are provided on both sides in the width direction of the heat dissipation member 20, but the present invention is not limited to this, and the position where the cut-and-raised portions 21 are provided is not limited to this. There is no particular limitation.

Further, in the above-described embodiment, the cut-and-raised portion 21 has a rectangular shape, but the invention is not limited to this, and the width of the base end portion is larger than the width of the protruding end portion. Other shapes may be used as long as they are the same.

Further, although the holding hole 11 has a U-shape in the above embodiment, the present invention is not limited to this. For example, as shown in FIG. 7, it may have an oval shape, and may follow the outer shape of the heat exchange pipe 3.

Further, as shown in FIG. 8, a reinforcing member 10b for connecting all the pin fins 13 may be provided in the middle of the pin fins 13 in the longitudinal direction. According to such a configuration, there is an effect that the gap between the pin fins 13 can be more reliably maintained by the cut-and-raised portion 21 and the member 10b.

[0074]

The first means of the present invention supports a plurality of heat exchange pipes arranged in parallel and the ends of the plurality of heat exchange pipes, and the working fluid is contained in the heat exchange pipes. A heat-dissipating material that is combined with the plurality of heat exchange pipes in the state of being in the form of a strip plate and stacked in the same direction with the longitudinal direction substantially orthogonal to the longitudinal direction of the heat exchange pipe. In a heat exchanger comprising:
On one side of the heat dissipating material, there is a cut-and-raised portion that is cut and raised so as to be inclined at a predetermined angle with respect to the longitudinal direction and the width direction of the heat dissipating material, and that regulates the stacking interval of the heat dissipating material. It is a heat exchanger.

According to this structure, it is possible to obtain a heat exchanger in which the distance between the heat radiating members can be reliably regulated, drainage water can be discharged well, and ventilation resistance is small. According to a second configuration, in the heat exchanger of the first configuration, the heat dissipation material includes linear fins composed of a plurality of slits along the longitudinal direction of the heat dissipation material, and the cut-and-raised part is provided. Is a heat exchanger characterized in that it is formed at a position corresponding to an intermediate portion in the longitudinal direction of the linear fins.

With this structure, it is possible to reliably regulate the distance between the pin fins formed on the heat dissipation member, drainage water dischargeability, and a heat exchanger with low ventilation resistance.

A third means is the heat exchanger of the first means, wherein the cut-and-raised portion is cut-and-raised so as to be inclined at a predetermined angle with respect to the height direction and the ventilation direction of the heat exchanger. It is a heat exchanger that is characterized by being.

With such a structure, it is possible to obtain a heat exchanger having a good drainage water discharge property and a small ventilation resistance. A fourth configuration is the heat exchanger of the first configuration, in which the cut-and-raised portions are provided on one side portion and the other side portion in the width direction of the heat dissipation member, and the cut-and-raised portions provided on the one side portion. The heat exchanger is characterized in that the raised portion and the cut-and-raised portion provided on the other side portion are cut and raised so as to be inclined at different angles.

According to this structure, both the cut-and-raised portion provided on the one side portion and the cut-and-raised portion provided on the other side portion are fitted in the opening formed after the cut-and-raising. Therefore, it is possible to obtain a heat exchanger that can reliably control the distance between the heat radiating materials, has a good drainage water discharge property, and a small ventilation resistance.

According to a fifth structure, in the heat exchanger of the fourth structure, the cut-and-raised parts provided on the one side and the cut-and-raised parts provided on the other side have an angle orthogonal to each other. It is a heat exchanger characterized by being cut and raised.

According to this structure, both the cut-and-raised portion provided on the one side portion and the cut-and-raised portion provided on the other side portion are fitted into the opening formed after the cut-and-raising. Therefore, it is possible to obtain a heat exchanger that can reliably control the distance between the heat radiating materials, has a good drainage water discharge property, and a small ventilation resistance.

A sixth means is the heat exchanger of the first means, wherein the width of the cut-and-raised portion on the base end side is equal to or larger than the width of the cut-and-raised portion on the projecting end side. It is a heat exchanger. According to such a configuration, the cut-and-raised portion can be formed in a single step, so that the productivity of the heat exchanger is improved.

[Brief description of drawings]

FIG. 1 is a side view showing a heat dissipation member according to an embodiment of the present invention.

FIG. 2 is an explanatory view similarly showing the action of the cut-and-raised member.

FIG. 3 is a process drawing that similarly shows the molding of the heat dissipation material.

FIG. 4 is a process drawing showing the molding of a heat dissipation material.

FIG. 5 is a transverse cross-sectional view of the heat dissipation member taken along the line I-I in FIG.

FIG. 6 is an explanatory view showing assembly of the heat exchanger, likewise.

FIG. 7 is a side view and a front view showing another embodiment.

FIG. 8 is a side view and a front view showing another embodiment.

FIG. 9 is a schematic view and an enlarged perspective view showing a conventional pin fin type heat exchanger.

FIG. 10 is a perspective view showing a pin fin type heat exchanger in the same manner.

FIG. 11 is an enlarged perspective view showing the assembly of the pin fin type heat exchanger.

FIG. 12 is an enlarged perspective view showing the assembly of the pin fin type heat exchanger.

FIG. 13 is a vertical cross-sectional view showing a cut-and-raised portion in an enlarged manner.

FIG. 14 is a side view and a front view showing a heat dissipation member.

FIG. 15 is a side view and a front view showing a heat dissipation member.

[Explanation of symbols]

10 ... Heat exchanger, 3 ... Heat exchange pipe, 4 ... Header, 12
… Slits, 13… Pin fins, 20… Heat dissipation materials, 21…
Cut-and-raised part, (a) ... Ventilation direction (width direction of heat dissipation material)

Claims (6)

[Claims] 1. A plurality of heat exchange pipes arranged in parallel, a header for supporting the ends of the plurality of heat exchange pipes, and supplying a working fluid into the heat exchange pipes, and a strip plate shape. In a heat exchanger comprising a plurality of heat-exchange pipes laminated in the same direction, the longitudinal direction of which is substantially orthogonal to the longitudinal direction of the heat exchange pipe, and a heat dissipation material combined with the plurality of heat exchange pipes, The heat radiating material is cut and raised on one surface side of the heat radiating material so as to be inclined at a predetermined angle with respect to the longitudinal direction and the width direction of the heat radiating material, and a cut-and-raised portion that regulates a stacking interval of the heat radiating material. A heat exchanger having. 2. The heat exchanger according to claim 1, wherein the heat dissipating member comprises a linear fin composed of a plurality of slits along the longitudinal direction of the heat dissipating member, and the cut-and-raised portion is A heat exchanger formed at a position corresponding to a midway portion of the linear fin in the longitudinal direction. 3. The heat exchanger according to claim 1, wherein the cut-and-raised portion is cut and raised so as to be inclined at a predetermined angle with respect to a height direction and a ventilation direction of the heat exchanger. A heat exchanger characterized by. 4. The heat exchanger according to claim 1, wherein the cut-and-raised portions are provided on one side portion and another side portion in the width direction of the heat dissipation member, and the cut-and-raised portions provided on the one side portion. The heat exchanger characterized in that the cut-and-raised parts provided on the side part and the other side part are cut-and-raised so as to be inclined at different angles. 5. The heat exchanger according to claim 4, wherein the cut-and-raised portion provided on the one side portion and the cut-and-raised portion provided on the other side portion are cut and raised at an angle orthogonal to each other. A heat exchanger characterized by being present. 6. The heat exchanger according to claim 1, wherein the width of the cut-and-raised portion on the base end side is equal to or larger than the width of the cut-and-raised portion on the projecting end side.