JPS5932877Y2 - Support piece for heat exchanger tubes - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a support piece that prevents deflection of a heat exchanger tube.

Conventional support pieces of this type were simply crimped onto the fin portions of the heat exchanger tubes during assembly, so they easily fell off from the heat exchanger tubes during assembly, making the assembly process time-consuming.

Therefore, it is an object of the present invention to provide a support piece that will not fall off the heat exchanger tube during assembly.

Therefore, the support piece according to the present invention is characterized in that it has a protrusion on one end wall and a hole on the other end wall, and is engaged with an opposing similar support piece by means of the protrusion and the hole. Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 3, the support piece 1 attached to the heat exchanger tube has a generally box-shaped body, and has a base surface 2, which is the upper surface in the figures, and a pair of opposing side walls 3 and 3. It is composed of a pair of end walls 4.

As shown in FIG. 6, a notch 5 is formed in each side wall 3 to receive the tube portion 11 of the heat transfer tube 10. As shown in FIG.

This notch 5 is preferably semicircular as shown in FIG. 1, but may be rectangular as shown in FIG. 3 or other shapes.

Although the shape of the main body may be a rectangular parallelepiped, it is preferable that the base surface is composed of a central flat part 21 and sloped parts 22 on both sides as shown in FIG. This can be prevented and the arrangement pitch of the heat exchanger tubes can be reduced.

Further, as shown in FIG. 3, one or more protrusions 31 may be provided on the side wall 3 by embossing or the like, so that the side wall 3 is tightly inserted between the fin portions 12, thereby preventing displacement. be done.

As shown in the figure, the feature of the present invention is that the edge of at least one end wall 4 is configured to protrude beyond the edge of the side wall 3, one end wall is provided with a protrusion 6, and the other end wall is provided with a protrusion 6. A hole 7 is formed in the hole 7 to receive and engage the protrusion 6.

The protrusion 6 may be provided on either the inner or outer surface of the end wall 4, and is preferably formed integrally by pressing or the like.

As in FIGS. 1 and 2, preferably both end walls 4
It is preferred that the edge of the third side protrudes beyond the edge of the side wall 3, and that the protrusion 6 and the hole 7 are approximately at the same level as the edge of the side wall 3.
As shown in the figure, only one end wall 4 is made to protrude relatively larger than the edge of the side wall 3, and a projection 6 or a hole 7 is provided near the tip of the end wall 4, and a hole 7 or a projection that engages with it is provided in the other end wall. 6 may be provided.

Note that one end wall 4 may be provided with a step so that the end wall becomes a flat surface when engaged with the end wall of the opposing support piece.

When a pair of support pieces 1 are combined to sandwich a heat exchanger tube, as shown in FIGS. 4 and 5, the protrusions 6 and holes 7 on the end wall of one support piece are connected to the other support piece, respectively. engages the hole 7 and projection 6 in the end wall of.

Note that since the support piece 1 is made of metal, it can be elastically bent to a certain degree, so that the projections 6 and the holes 7 can be fitted together.

To facilitate elastic deflection of the end wall 4, the end wall is preferably spaced apart from the side wall 3.

Also, when removing it, it can be easily done by pressing the end wall of one of the support pieces and bending it.

In FIG. 4, it can be seen that one end wall of the support piece is engaged with one another, while the other end wall is also engaged.

Therefore, according to the present invention, when the support piece is attached to the heat exchanger tube during assembly, the pair of support pieces engage with each other on both end walls through their protrusions and holes, so they do not fall off and are easy to handle. Therefore, it is possible to quickly assemble the heat exchanger tubes of the heat exchanger.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the support piece according to the present invention, Fig. 2 is a perspective view of another embodiment, Fig. 3 is a perspective view of still another embodiment, and Fig. 4 is a perspective view of a pair of support pieces according to the present invention. A perspective view showing the combined state of the support pieces, FIG. 5 is a line A- in FIG. 4.
FIG. 6 is an enlarged sectional view taken along line A, and FIG. 6 is a sectional view showing a state in which a support piece is attached to a heat exchanger tube. In the diagram, 1...Support piece, 2...
Base surface, 3... side wall, 4... end wall,
5...Notch, 6...Protrusion, 7...
... Hole, 21 ... Plane part, 22 ...
Inclined portion, 31...protrusion.

Claims (5)

[Scope of utility model registration request] (1) A support piece consisting of a generally box-shaped main body, each side wall of the main body having a notch for receiving a tube part of the heat transfer tube, and supporting pieces that sandwich the heat transfer tube in pairs; An edge of at least one end wall projects further than an edge of the side wall, one end wall is provided with a protrusion, and the other end wall is formed with a hole that engages with the protrusion. Support piece for heat exchanger tubes. (2) Utility model registration In the support piece according to claim 1, the edges of both end walls protrude beyond the edges of the side walls, and the protrusions and holes are substantially the same as the edges of the side walls. Support piece for heat exchanger tubes installed at the level. (3) Utility model registration The support piece according to claim 1, wherein the base surface of the main body has a flat part in the center and sloped parts on both sides thereof. (4) Utility model registration The support piece according to claim 1 for a heat exchanger tube, further comprising one or more protrusions formed on the side wall. (5) Utility model registration The support piece according to claim 1, wherein the end wall is separated from the side wall.