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Heating devices in water-conducting household appliances

A technology for heating devices and household appliances, used in household cleaning devices, household appliances, water heaters, etc., can solve the problems of large thermal resistance, high manufacturing overhead, heat loss, etc., and achieves improved heat transfer, improved flow resistance, and improved The effect of component rigidity

Active Publication Date: 2017-03-08
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Arrangement of thick-film heating elements on the outer side of the pump housing, which entails high manufacturing effort
In addition, the thermal resistance to be overcome by the pump housing made of metal is considerable, so that heat losses occur during heating operation

Method used

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  • Heating devices in water-conducting household appliances
  • Heating devices in water-conducting household appliances
  • Heating devices in water-conducting household appliances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] exist Figures 1 to 3 Shown in the first embodiment for the flow of liquid I ( figure 1 or 3) a heating device for heating. Said heating device can exemplarily be a water heating device installed in the hydraulic circuit of the dishwasher, the water heating device is integrated in figure 1 In the liquid line 3 drawn in. Heating device according to Figures 1 to 3 A heating tube with a double wall, wherein the outer tube 1 is designed as a heat pipe or heat conducting tube. Furthermore, the double-walled heating tube has an inner tube 7 through which the liquid flows and an annular gap 9 arranged in the middle ( image 3 ). Inner pipe 7 and outer pipe 1 according to Figures 1 to 3 They are arranged coaxially with one another, so that the annular gap 9 has a constant gap width along the circumference. Together with the bottom-side collecting chamber 13 described below, the annular gap 9 is part of a fluid-tight and pressure-tightly closed space 8 between the inner ...

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PUM

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Abstract

The invention relates to a heating device for heating a liquid flow (I) in a water-conducting domestic appliance. According to the invention, the heating device has a heat pipe (1) with a heat-absorbing evaporator section (23) and a heat-dissipating condenser section (25), which is connected to the liquid flow (I ) thermally connected.

Description

technical field [0001] The invention relates to a heating device for heating a liquid flow in a water-conducting domestic appliance and to such a water-conducting domestic appliance. Background technique [0002] It is well known that heat pipes (heat pipes) are used in many fields. Such heat pipes comprise a hermetically enclosed space which is filled with a working medium (for example water). A small part of the working medium is in a liquid state and most of it is in a vapor state to fill the space. When heat is supplied to the heat pipe, the working medium begins to vaporize. This locally increases the pressure in the vapor chamber located above the liquid level. The generated steam thus flows in the direction of the heat transfer surface of the heat pipe, where it condenses due to the lower temperature. This dissipates the heat previously absorbed. The liquid working medium can then be led back to the evaporator by gravity and / or by capillary forces. [0003] A he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47L15/42
CPCA47L15/4225A47L15/4285F04D29/588D06F58/26D06F39/04D06F39/085F24H1/12F28D7/0033F28D7/106F28D15/0233F28D15/0275F28F13/06A47L15/4219D06F58/20F28D15/02
Inventor P.普索拉
Owner BOSCH SIEMENS HAUSGERATE GMBH