Heat exchanger for bathing shower

Abstract

The present invention provides a heat exchanger for bathing shower comprising an upper deck, a lower chassis and two hatches. On the bottom surface of the upper deck are disposed several parallel septa, whose integral propping strength is good enough to support maximal body weight of a bathing user. After having assembled, the circulation of internal water passages is configured into a continual zigzag duct to increase energy saving effect in consequence of improvement in heat exchanging efficiency of the water heater. With simple structure, it is easily fabricated by traditional extruding method without welding process and related welding technician. Thereby, selling price is reduced with marketing competitiveness because overall manufacturing cost is decreased so that the purchasing intention of the consumers is spurred. Thus, it is not only favorable to promote and penetrate marketing range and depth but also valuable to achieve energy saving and carbon reducing effect.

Description

FIELD OF THE PRESENT INVENTION[0001]The present invention relates to a heat exchanger for bathing shower with features in good heat exchanging efficiency, simple structure and easy fabrication so that manufacturing cost is decreased and energy saving efficiency is increased. Thereby, the purchasing intention of the consumers is spurred and energy saving and carbon reducing effects is promoted.BACKGROUND OF THE INVENTION[0002]For the purpose of reducing carbon product, many heat exchangers for bathing shower used in household have been introducing in the market. The design concept is that the incoming cold tap water running through in the heat exchanger is heated up by the bathed hot waste water, which is served as thermal source, so that the temperature of output tap water from heat exchanger becomes warmer than that of incoming tap water for being redirected into an inlet pipe for the water heater of bathing shower. Thereby, the temperature of the inlet water for the water heater o...

AI Technical Summary

Benefits of technology

[0009]The primary object of the present invention is to provide a heat exchanger for bathing shower with following features: (1) integral propping strength is good enough to support maximal body weight of a bathing user; (2) the circulation of internal water passages is configured into continual zigzag duct to considerably increase energy saving effect in consequence of improvement in heat exchanging efficiency of the bathing water heater; (3) simple structure and easy fabrication by traditional extruding method without involving welding process and related high-salary welding technician. Thereby, selling price can be substantially reduced with strong marketing competitiveness because overall manufacturing cost is decreased without sacrifice quality so that the purchasing intention of the consumers is spurred. Thus, the present invention is not only favorable to promote and penetrate marketing range and depth but also valuable to expedite in achieving the eco-friend effect of energy saving and carbon reducing requirement.

Problems solved by technology

1. Please refer to FIGS. 1 through 3 for metal heat absorbing slab 20. In order to keep the hot shower water W drop on the top surface 24 of the metal heat absorbing slab 20, the shower user M must stand on the top surface 24 of the metal heat absorbing slab 20. Consequently, the metal top surface24 with hollow chamber 21 beneath will be indented deformation owing to body weight strain of the shower user M for long term use (as hypothetical line shown in FIG. 3). Because metal heat absorbing slab 20 is fabricated by metal welding process, water leakage is incurred from certain metal welding seams on the metal heat absorbing slab 20 being fractured due to indented deformation thereon so that not only the heat exchanging effect will be lost but also certain fractured metal welding seams may cause accidental hurt to the shower user M inadvertently. Moreover, because no circulation directing means is designed in the hollow chamber 21, water turbulences will happen in the chamber 21 after cold tap water W1 flows into therein via the water inlet pipe 23 (as indicting arrow heads shown in FIG. 2) so that the energy saving effect will be considerably decreased in consequence of lowering heat exchanging efficiency.

2. Please refer to FIGS. 4 and 5 for metal heat absorbing slab 200. Likewise, in order to keep the hot shower water W drop on the top surface of the metal heat absorbing slab 200, the shower user M must stand on the top surface of the metal heat absorbing slab 200. Because metal heat absorbing slab 200 is formed by spiral metal tube 201 having multiple continual coils with a gap S for each pair of adjacent coils, the round top surface thereof becomes slippery once hot shower water W drops thereon so that the shower user M stands thereon often suffered from injure inadvertently incurred by falling down due to such round slippery surface (as shown in FIG. 4). That is a menace to the safety of the shower user M. Moreover, all the gaps S between each pair of adjacent coils in the spiral metal tube 201 cause no heat exchanging function as the hot shower water W passes therein without contacting to the spiral metal tube 201 (as shown in FIG. 5) so that the energy saving effect will be considerably decreased in consequence of lowering heat exchanging efficiency.

3. The key process for the manufacturing of metal heat absorbing slab 20 in FIG. 1 and metal heat absorbing slab 200 in FIG. 4 is metal welding process, which cause relative high labor cost in manufacturing expense as metal welding process is often worked by high-skilled technician with high salary to maintain high yield. Moreover, the multiple continual coils with a gap S for each pair of adjacent coils for fabricating the spiral metal tube 201 must processed by a tube-bending machine of high accuracy together with metal welding process for welding connection with water inlet pipe 23 and water outlet pipe 22 respectively so that overall manufacturing cost keep soaring high without possibility of lowering down. Thus, the ex-factory price and retail price for the product of metal heat absorbing slab 20 and 200 become particular high with difficulty for lowering down so that not only the purchasing intention of the consumer is retarded but also the product itself becomes unpopular.

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