CN101524244A

CN101524244A - Heating device

Info

Publication number: CN101524244A
Application number: CN200910038773A
Authority: CN
Inventors: 郭建刚; 刘有辉
Original assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Current assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Priority date: 2009-04-15
Filing date: 2009-04-15
Publication date: 2009-09-09

Abstract

A heating device comprises an electric heating element and a water guide pipe which are embedded in a heat conductor, wherein electrodes of the electric heating element are arranged outside the heat conductor, water inlet and outlet ports of the water guide pipe are arranged on the surface or the outer part of the heat conductor, the water guide pipe is distributed on the periphery of the electric heating element, and the cross section formed by the water guide pipe is also distributed on two sides or more than two sides of the periphery of the electric heating element. The water guide pipe (with unlimited shape, such as single-layer, double-layer or multilayer spiral involute distribution) surrounds the heating element, thereby reducing heat loss, reducing the temperature rise of the surface of the heat conductor, and achieving the effects of safety, energy conservation and environmental protection. When heating, water passes through the middle of the water guide pipe in a directional mode to complete a heating or vaporization process, and due to the fact that the heating element and the heated element are reasonably distributed and are cast into a whole by metal heat conducting materials, the heated element is heated uniformly, heat efficiency is improved remarkably, heat exchange lag time is effectively shortened, and temperature control is facilitated. The structure is compact, the volume is small, the cost is low, and the application range is wide.

Description

Heater

Technical field

The present invention relates to a kind of heater, particularly mainly be applicable to the heater of hot beverage maker.

Background technology

Hot beverage maker heater in the market is easy single-sided lamination between heater element (electrothermal tube) and the heated body (fortune water pipe).As shown in Figure 1, heat-generating pipe 11 usefulness welding manners and heat carrier 12 monolateral transmission of heat by contacts; As shown in Figure 2, heat-generating pipe 21 usefulness riveted joint modes and heat carrier 22 monolateral transmission of heat by contacts, about the cross section shows as (or about) structural configuration, this structure causes heat exchange seriously to lag behind, and beverage heating temperature control is inaccurate.And because single-sided lamination reduces heat exchanger effectiveness greatly, the heat energy of loss simultaneously causes peripheral temperature rise too high, the product energy consumption height, and not environmental protection, even have potential safety hazard.In Fig. 3, Fig. 4, heater element 31 (electrothermal tube) is embedded in heat carrier 32 with heated body 33 (fortune water pipe), make moderate progress than Fig. 1, Fig. 2, be that heated element (water pipe) is encircled heater element (heat-generating pipe) generally, arrange that obvious this annular heat-generating pipe central temperature should be the highest but the cross section shows as external and internal compositions, but the center does not have heated element, though it is relatively low that this structure can be accomplished energy consumption and temperature rise, the heat exchange problem that seriously lags behind still and does not solve, and beverage heating temperature control is inaccurate.

A kind of heater is disclosed among the China Patent No. ZL200720008161.0, it comprises a foundry goods and a pump housing, be embedded with heating tube in this foundry goods and around the water pipe in the heating tube outside, this heating tube becomes U-shaped and has two electric connecting terminals that can connect power supply, this water pipe has import and the outlet that stretches out in outside the foundry goods, and this pump housing is connected to the water pipe import.The water pipe of this structure is actually and is positioned at the outer side of heating tube, and other heating face of heating tube with water pipe heat transmission is not taken place, and perhaps, because standoff distance is too big, causes at the bottom of the heet transfer rate.

Summary of the invention

Purpose of the present invention aims to provide a kind of simple and reasonable, sufficient heater of rate of heat exchange, to overcome weak point of the prior art.

A kind of heater by this purpose design, comprise the heating and the aqueduct that are embedded in heat carrier, the heating electrode is arranged on outside the heat carrier, aqueduct water-in and water-out port is arranged on heat carrier surface or outside, its architectural feature is that aqueduct is distributed in the heating periphery, and the cross section that forms of aqueduct also is distributed in heating periphery both sides or more than the both sides.

Described heating takes the shape of the letter U or is circular, aqueduct along heating gradually opening the mode winding of spiral, the shaft section that aqueduct forms be distributed in the heating shaft section around.

Perhaps, described heating takes the shape of the letter U or is circular, and aqueduct is encircled the winding of heating spiral, and the shaft section that aqueduct forms is distributed in heating central axis both sides.

Described heat carrier is metal casting, and is in the form of annular discs, and heating is a heat-generating pipe, and aqueduct is a metallic water pipe, and heat carrier and heating and aqueduct are cast as one, play fixedly shaping effect simultaneously.

Aqueduct of the present invention (shape is not limit, and distributes as individual layer, bilayer or multi-layer helical involute shape) is encircled heater element, thereby reduces thermal losses, and the heat carrier surface temperature rise is low, reaches the effect of safety, energy-saving and environmental protection.Water is heated up or vaporescence by finishing by directed in the middle of the aqueduct during heating, because the reasonable distribution between heater element and the heated element, and become one by metal heat-conducting material casting, heated element is heated evenly, the thermal efficiency significantly improves, and effectively reduce heat exchange lag time, more help temperature control.In addition, this product monnolithic case can be discoid, and during assembling complete machine one machine double-purpose (or use), overlapping placement can effectively reduce taking up room, and reduces machine volume more.Its compact conformation, volume is little, cost is low, applied widely.

Description of drawings

Fig. 1-Fig. 4 is the prior art structural representation.

Fig. 5 is one embodiment of the invention structural representation.

Fig. 6 is heating and aqueduct winding relational structure schematic diagram.

Fig. 7 is a cross section structure schematic diagram of the present invention.

Fig. 8 is another embodiment of the present invention structural representation.

The specific embodiment

Below in conjunction with drawings and Examples the present invention is further described.

First embodiment

Referring to Fig. 5-Fig. 7, this heater, comprise the heating 1 and the metal aqueduct 2 that are embedded in metal heat-conducting body 3 in the form of annular discs and are cast into one with it, the heating electrode is arranged on outside the heat carrier, and aqueduct water-in and water-out port is arranged on the heat carrier outside.

Heating 1 is a heat-generating pipe, is circular, aqueduct 2 with the mode winding of gradually opening spiral along heating in its periphery, see Fig. 6, the shaft section that aqueduct forms be distributed in the heating shaft section around, see Fig. 7.

Second embodiment

Referring to Fig. 8, heating 1 ' takes the shape of the letter U, and aqueduct 2 ' is encircled the winding of heating spiral, and the shaft section that aqueduct forms is distributed in heating central axis both sides.Other does not state part with first embodiment.

Claims

1. heater, comprise the heating (1) and the aqueduct (2) that are embedded in heat carrier (3), the heating electrode is arranged on outside the heat carrier, aqueduct water-in and water-out port is arranged on heat carrier surface or outside, it is characterized in that aqueduct is distributed in the heating periphery, and the cross section that forms of aqueduct also is distributed in heating periphery both sides or more than the both sides.

2. according to the described heater of claim 1, it is characterized in that described heating (1) takes the shape of the letter U or circular, aqueduct (2) along heating gradually opening the mode winding of spiral, the shaft section that aqueduct forms be distributed in the heating shaft section around.

3. according to the described heater of claim 1, it is characterized in that described heating (1 ') takes the shape of the letter U or circular, aqueduct (2 ') is encircled the winding of heating spiral, and the shaft section that aqueduct forms is distributed in heating central axis both sides.

4. according to the described heater of claim 1, it is characterized in that described heat carrier (3) is a metal casting, in the form of annular discs, heating (1) is a heat-generating pipe, and aqueduct (2) is a metallic water pipe, and heat carrier and heating and aqueduct are cast as one.