JP3118381B2 - Refrigerant heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant heater incorporated in an outdoor unit of a gas room air conditioner for raising the temperature of a refrigerant by heat exchange.

[0002]

2. Description of the Related Art Conventionally, this type of refrigerant heater has been disclosed in
As disclosed in Japanese Patent No. 38864, a pair of heat absorbing plates are opposed to each other, and a plurality of heat exchange fins are integrally provided on respective opposed surfaces to have a high-temperature gas passage space from below to above. A heater is installed in the upper part of the combustion chamber via the mounting seat, and high-temperature gas enters the passage space from the combustion chamber and exchanges heat with the heat exchange fins. It is designed to be exhausted. Further, a refrigerant pipe is arranged outside the heat absorbing plate, and the heat received by the heat exchange fins is transmitted to the refrigerant from the refrigerant pipe via the heat exchange fins and the heat absorbing plate, so that the temperature of the refrigerant rises. Is provided.

[0003]

As described above, in the conventional refrigerant heater, the main body of the refrigerant heater is a heat exchange fin.
The upper and lower heat absorbing plates are disposed opposite to each other, and the upper cover is attached above, the high-temperature gas supply unit is attached below, and the side cover is attached. However, the number of members constituting the refrigerant heater is large in this manner, and it takes time and labor for assembling, which causes an increase in manufacturing cost. In view of the above circumstances, an object of the present invention is to reduce the number of members of a refrigerant heater, and an object of the present invention is to enable the refrigerant heater to be easily assembled.

[0004]

The present invention SUMMARY OF] has been made in consideration of the above problems, a pair of heat absorbing plates facing from below and the hot gas passage space through which the gas upward in each of the opposing surfaces of the heat absorbing plate A refrigerant heater body provided with heat exchange fins, a refrigerant pipe provided outside the heat absorbing plate of the refrigerant heater body, and a lower portion of the refrigerant heater body serving as a combustion chamber mounting portion, A pair of heat-absorbing plates;
Heat exchange fans provided on the opposing surfaces of a pair of heat absorbing plates.
And an outer surface of each of the pair of heat absorbing plates,
A refrigerant pipe mounting portion on which the refrigerant pipe is sandwiched;
Combustion chamber mounting seats respectively provided at the lower end of the heat absorbing plate,
The exhaust chambers are connected to upper ends of the pair of heat absorbing plates, respectively.
Each of the surrounding exhaust chamber walls is united in the extrusion direction
It is equipped with one continuous aluminum extrusion,
The present invention solves the above-mentioned problems by providing a refrigerant heater characterized in that the aluminum extruded product is used as a base of the refrigerant heater main body .

[0005]

Next, the present invention will be described in detail with reference to an embodiment shown in FIG. In the figure, reference numeral 1 denotes a refrigerant heater, in which high-temperature gas from a burner B incorporated in a combustion chamber A passes through a high-temperature gas passage space 3 between a pair of heat absorption plates 2 as in the conventional case. When the gas passes through the high-temperature gas passage space 3, heat is exchanged by the heat exchange fins 5 protruding from the respective opposing surfaces 2 a of the heat absorbing plate 2 when the gas passes through the high-temperature gas passage space 3. The heat transmitted through the fins 5 and the heat absorbing plate 2 reaches the refrigerant pipe 6 arranged and fixed on the outer surface 2b of the heat absorbing plate 2, and the temperature of the refrigerant flowing through the refrigerant pipe 6 is raised. In the present invention, the refrigerant heater main body 7 installed in the combustion chamber A has a single aluminum extrusion 8 as a base. The aluminum extrusion 8
As shown in FIG. 1, the one placing the refrigerant pipe mounting portion 9 for holding the refrigerant pipe 6 overhangs sectional tongue shape on the outer surface 2b with disposing heat exchange fins 5 on the opposing surfaces 2a
A pair of heat absorbing plates 2, an exhaust chamber wall 10 having a predetermined cross-sectional shape connected to upper ends of the pair of heat absorbing plates 2 and surrounding the exhaust chamber 4,
Have a combustion chamber mounting seat 11 which is integral with the respective lower ends of the heat absorbing plate 2 receiving section corresponding to C of the pair of combustion chamber A, the pair of the heat absorbing plate 2, the heat exchange fins 5, the refrigerant pipe
Attaching portion 9, and the exhaust chamber wall 10 and the combustion chamber mounting seat 11 are formed by aluminum extrusion as the cross-section becomes an integral, single
Heat absorbing plate 2 of the pair, the heat exchange fins 5, the refrigerant pipe mounting portion 9, in which each of the exhaust chamber wall 10 and the combustion chamber mounting seat 11 is continuous in the extrusion direction.

In the extruded aluminum body 8, a pair of ridges 12 are opposed to each other at required positions on the facing surface 2 a of the heat absorbing plate 2 and at required positions on the inner surface of the exhaust chamber wall 10. The screw groove 13 is formed by extrusion molding, and the screw groove 13 is continuous in the extrusion direction. And since the said jetty 12 which comprises this screw groove 13 is continuous in the extrusion direction, it has a heat exchange function with high temperature gas.

[0007] In the figure, reference numeral 14 denotes an exhaust port, and 15 denotes a gas inflow port, each of which is opened in post-processing. Then, a side cover (not shown) is screwed on the side surface of the aluminum extrusion molded body 8 having this cross-sectional configuration by using the screw groove 13.
(Not shown), the refrigerant heater body 7 is formed, and the refrigerant pipe 6 bent in a fixed pattern is cooled.
The refrigerant heater 1 is obtained by being sandwiched and assembled with the medium pipe mounting portion 9 .

[0008]

As described in the foregoing, according to the refrigerant heater of the present invention, <br/> a pair of heat absorbing plates facing from below the hot gas passage space through which the gas upwardly facing surfaces of the heat absorbing plate A refrigerant heater body provided with heat exchange fins is provided, and a refrigerant pipe is provided outside a heat absorbing plate of the refrigerant heater body. In the refrigerant heater in which the upper part of the container body is an exhaust chamber, the pair of heat absorbing plates and
Heat exchange fins respectively provided on opposing surfaces of the heat absorbing plate,
The refrigerant is provided on the outer surfaces of the pair of heat absorbing plates, respectively.
A refrigerant pipe mounting portion where the pipe is sandwiched, and the pair of heat absorbing plates
Combustion chamber mounting seats respectively provided at the lower ends of the
Exhaust connected to the upper end of the heat absorbing plate and surrounding the exhaust chamber
Each of the chamber walls is integrated and continuously in the extrusion direction
This one aluminum extruded body
An extruded body is used as a base of the refrigerant heater body.
Therefore, it is necessary to prepare an upper cover separately as before.
Without heat exchange fins or refrigerant pipe attachment
One pair of heat absorbing plates is required, and the number of parts is small.
In addition, it is possible to provide a refrigerant heater whose assembly operation is simple.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a cross section of an embodiment of a refrigerant heater according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Refrigerant heater 2 ... Heat absorption plate 3 ... High-temperature gas passage space 4 ... Exhaust chamber 5 ... Heat exchange fins 6 ... Refrigerant pipe 7 ... Refrigerant heater main body 8 ... Aluminum extruded body 9 ... Refrigerant pipe mounting part 10 ... Exhaust chamber Wall 11: combustion chamber mounting seat 13: screw groove

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koto Akita 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kazuya Sugiyama 2-chome, Keihanhondori, Moriguchi-shi, Osaka No. 5-5 Inside Sanyo Electric Co., Ltd. (56) References JP-A-2-38864 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 5/00

Claims (1)

(57) [Claims] 1. A space between a pair of opposed heat absorbing plates, which is a high-temperature gas passage space through which gas flows upward from below.
A refrigerant heater body provided with heat exchange fins in each of them, a refrigerant pipe is provided outside a heat absorbing plate of the refrigerant heater body, and a lower portion of the refrigerant heater body is a combustion chamber mounting portion, and a refrigerant is provided. In a refrigerant heater having an upper part of a heater main body as an exhaust chamber, a pair of heat absorbing plates and a pair of heat absorbing plates facing each other are provided.
The heat exchange fins respectively provided and the pair of heat absorbing plates
Each of the cooling pipes is provided on the outer surface and the refrigerant pipe is sandwiched therebetween.
Medium pipe mounting part and the lower end of the pair of heat absorbing plates.
And the upper end of the pair of heat absorbing plates.
Each connected to the exhaust chamber wall surrounding the exhaust chamber
But one piece of aluminum that is continuous in the extrusion direction
An extruded body is provided, and this one aluminum extruded body is
A refrigerant heater characterized by being used as a base of a refrigerant heater main body .