JPS6021673Y2 - Mounting device for heat sensitive part of heat exchanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure in which a heat sensitive part of a temperature sensor is attached to a heat exchanger having a large number of fins.

In particular, the present invention relates to a mounting structure for a heat-sensitive part for preventing cold air in a hot water hot air heater.

During hot water heating, during the startup time from when the heat source equipment starts operating until high temperature hot water is supplied to the hot air heater of the terminal,
Warm air cannot be obtained even if the blower of the hot air heater rotates.

Therefore, there is a phenomenon in which the human body feels cold and feels uncomfortable.

In order to prevent this phenomenon, a cold air prevention thermostat is provided that stops the operation of the blower until the temperature of the heat radiation fins of the heat exchanger of the hot air heater rises to a temperature at which it can be operated.

The installation of a heat exchanger in a heat sensitive part of a conventional cold air prevention device of this type will be explained with reference to FIGS. 1 and 3.

Reference numeral 1 designates an L-shaped thermostat mounting plate, on which the thermostat 2 is mounted using mounting screws 6a, 6b on this horizontal surface 1a, and the vertical portion 1b is connected to the heat radiation fins 4 of the heat exchanger 3 (4a, 4).
It is inserted between b.

Further, presser plates 5a and 5b are provided to press the insertion vertical portion 1b via the radiation fins 4a and 4b on both sides.
Screw a and 5b? It has a structure that is tightened and fixed at a and 7b, respectively.

In this structure, the mounting plate 1 is attached to the radiation fins 4 through the mounting plate insertion vertical portion 1b and the holding plate 5a.

Since it is a sandwiching structure using 5b, 1. Are the screws done by the assembly worker? Depending on variations in the tightening work of a and 7b, there is a risk that the contact may loosen or separate due to vibrations during transportation, and reliability in preventing cold air is lacking.

Furthermore, the clamping structure requires a holding plate, tightening screws, etc., and has the disadvantage of being complicated and expensive.

The present invention has been made to improve the drawbacks of the prior art.

That is, a plate with heat-sensitive parts is inserted between the heat-radiating fins, and this mounting plate is bent and held between the heat-radiating fins in the width direction.

Embodiments of the present invention will be described below with reference to FIGS. 4 to 6.

Reference numeral 8 designates a thermostat mounting plate made of a metal plate with good thermal conductivity (e.g. copper, aluminum, etc.) formed into a U-shape with three sides 8a, 8b, and 8c.
is attached using mounting screws 10a and 10b.

Further, the wall thicknesses of the two opposing pieces 8a and 8b of the mounting plate 8 are set so as to fit into the gap A between the adjacent radiation fins 12 and 12 of the heat exchanger 11.

It is desirable that the wall thicknesses be approximately equal.

When the heat dissipation fin is a slit fin, as shown in FIG. The thickness of the pieces 8a and 8b may be A, which is larger than C.

In this case, when the insertion pieces 8a and 8b are inserted, the protruding portion 15a of the slit fin 15 is in a crushed state,
The insertion pieces 8a and 8b come into good contact with the slit fins 15.

Further, the gaps between the insertion pieces 8a and 8b are provided such that each piece fits between the required number of fixed heat radiation fins 12 and 12.

Further, a notch 13 is provided at the tip of the piece 8a of one of the mounting plates at a position a width B of the radiation fin 12 from the center piece 8C, and the tip thereof is a bent portion 8d.

In such a configuration, between the pipes 14-14 so that the hot water pipe 14 of the heat exchanger 11 is located below,
The pieces 8a and 8b of the mounting plate 8 are inserted between the radiation fins 12, and the bent portion 8d is bent.

Attach the thermostat 9 to the center piece 8 using the mounting screws 10a and 10b.
Fixed at c.

In this way, the heat dissipating fins 12 are inserted between the heat dissipating fins, the bent portions 8d are bent, and the heat dissipating fins 12 are mechanically narrowed by 8 cm8d, so there is no fear that the heat dissipating fins 12 will come off due to vibration during transportation, and reliability can be improved. It is.

Moreover, its structure is extremely simple and can be made at low cost.

Furthermore, since the pieces 8a and 8b of the mounting plate 8 are in contact with the radiation fins on both sides, a wide contact area can be obtained.
It has excellent responsiveness.

In addition, if the heat dissipation fin 12 is a slit fin,
It allows for good contact.

In the above embodiment, the mounting plate is U-shaped, but it may be L-shaped if there is no problem with response.

In addition, as shown in FIG. 8, the mounting plate 17 has the fin insertion piece 17a and the mounting piece 17c of the thermostat 9 on the same surface,
If the portion 17d in contact with the front surface of the radiation fin is formed by punching out from the insertion piece 17, ventilation loss can be prevented.

As described above, the present invention provides a mounting plate made of a metal thermal conductor with a wall thickness that can be inserted between adjacent fins of a heat exchanger, and a part that contacts the end surface of the radiation fin at one end of the mounting plate. , a notch is provided on the other end side at a position corresponding to the width of the fin from the part in contact with the heat dissipation fin, a heat sensitive part is attached to the one end side, and this mounting plate is inserted between the fins of the heat exchanger. Since the tip side is bent from the notch, it can be fixed inexpensively and reliably, and responsiveness can be improved.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the mounting structure of a conventional heat-sensitive part for preventing cold wind, Fig. 2 is a diagram of the installation state of a conventional heat-sensitive part for preventing cold wind, Fig. 3 is a cross-sectional view of the main parts in the same installed state, and Fig. 4 The figure is an exploded perspective view of the attachment structure of the heat-sensitive part for preventing cold air according to an embodiment of the present invention, FIG. 5 is a diagram of its installation state, FIG. FIG. 8 is an exploded perspective view of the mounting structure of another embodiment. Death...Mounting plate, 8a, 8b...Insert piece,
8c...center piece, 8d...bent part,
9...Thermostat, 11...Heat exchanger, 12...Radiation fin, 13...
Cut, 14...Hot water pipe.

Claims (1)

[Claims for Utility Model Registration] 1. In the case of attaching a heat sensitive part to a heat exchanger having a large number of fins, a mounting plate made of a metal thermal conductor having a wall thickness that can be inserted between adjacent fins of the heat exchanger. A part is provided on one end of the mounting plate that contacts the end surface of the heat dissipation fin, and a notch is provided on the other end at a position that is the width of the fin from the part that contacts the heat dissipation fin. 1. A mounting device for a heat sensitive part of a heat exchanger, characterized in that the heat sensitive part is mounted, the mounting plate is inserted between the fins of the heat exchanger, and the tip side is bent from the notch. 2. In claim 1 of the utility model registration claim, the mounting plate is U-shaped, and a heat-sensitive part is attached to the central piece thereof, and the interval between the two opposing pieces is such that each piece is adjacent to the required number of pieces. A mounting device for a heat sensitive part of a heat exchanger, the two pieces being inserted between the fins and at least one piece being bent.