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Heating-element unit, and heating device

A heating element unit and heating element technology, applied in the direction of electric heating device, ohmic resistance heating, heating element shape, etc., can solve problems such as difficult setting of the resistance value of the heating element, carbon fiber breakage, resistance value deviation in the length direction of the heating element, etc.

Inactive Publication Date: 2010-10-13
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the heat generating body of the second conventional example, since the boundary between the heat generating area and the heat radiation area formed between the cut parts is unclear, the resistance value in the longitudinal direction of the heat generating body varies, and it is difficult to accurately measure the heat generating body. The resistance value setting
As a result, in the heat generating element of the second conventional example, there is a problem in product design.
In addition, due to the influence of the resistance value variation of the heating element, temperature variation occurs in the heat dissipation area, and heat stress occurs. In the worst case, the carbon fibers constituting the heating element may be broken.

Method used

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  • Heating-element unit, and heating device
  • Heating-element unit, and heating device
  • Heating-element unit, and heating device

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Effect test

Embodiment approach 1

[0087] Regarding the heat generating unit according to Embodiment 1 of the present invention, using Figure 1 to Figure 9 Described below. In the heat generating unit according to Embodiment 1, the heat generating body is constituted by a film plate material in which a plurality of layers mainly composed of a carbon-based material is laminated with gaps interposed therebetween. That is, in the film sheet material, a plurality of layers are laminated with gaps in the layer thickness direction, and have flexibility. This thin film plate material has opposite tape surfaces constituting its front and back surfaces, and is formed into an elongated tape shape. In addition, a current suppressing portion serving as a current suppressing mechanism for suppressing a current flowing in the longitudinal direction is formed in the strip-shaped heat generating body.

[0088] figure 1 It is a perspective view which shows the heat generating unit of Embodiment 1. The heating element 1 for...

Embodiment approach 2

[0133] Next, use Figure 10 A heat generating unit according to Embodiment 2 of the present invention will be described. The heat generating unit according to the second embodiment differs from the heat generating unit according to the first embodiment described above in the cutting pattern of the current suppressing portion in the heat generating unit. Other points in the second embodiment are the same as those of the heat generating unit in the first embodiment. Therefore, descriptions repeated in the heat generating unit of Embodiment 2 below refer to the description of the heat generating unit of Embodiment 1, and different points will be described. In addition, in the description of the heat generating unit according to the second embodiment, the elements having the same functions and structures as those of the heat generating unit according to the first embodiment are denoted by the same reference numerals.

[0134] Figure 10 It is a plan view showing the current sup...

Embodiment approach 3

[0144] Next, the use of the heating element unit in Embodiment 3 of the present invention Figure 11 Be explained. The heat generating unit according to Embodiment 3 differs from the heat generating unit according to Embodiment 1 in that the cutting pattern of the current suppressing portion in the heat generating body is different. Other points in the third embodiment are the same as those of the heat generating unit in the first embodiment. Therefore, in the following description of the heat generating unit of Embodiment 3, the description of the heat generating unit of Embodiment 1 is cited repeatedly, and different points will be described. In addition, in the description of the heat generating unit according to Embodiment 3, elements having the same functions and structures as those in the heat generating unit according to Embodiment 1 are denoted by the same reference numerals.

[0145] Figure 11It is a plan view showing the structure of the current suppressing part ...

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Abstract

This aims to provide a heating-element unit, in which a slender, sheet-shaped heating element (1) composed of mainly a carbon-group material has a plurality of layers laminated through gaps from each other in the thickness direction and in which current suppressing means (2) is formed to control the electric currents to flow through the individual layers laminated. The current suppressing means (2) is formed to have cuts by pushing blades in the thickness direction of the heating element (1), so that the electric current to flow in the longitudinal direction of the heating element (1) can be controlled to a desired value by forming the current suppressing means (2).

Description

technical field [0001] The present invention relates to a heating element unit used as a heat source of a heating mechanism and a heating device using the heating element unit, in particular to a heating element that uses a carbonaceous material as a main component and forms a plate shape as a heat source. A heating element unit having excellent heat generation characteristics, a heating device using the heating element unit, and the like. Background technique [0002] As a heating element mainly composed of a carbon-based substance used in a conventional heating element unit, there is a proposal disclosed in Japanese Patent Application Laid-Open No. 2006-049088. The heating element disclosed in Japanese Patent Application Laid-Open No. 2006-049088 has a thinner and slender plate, and is a structure for supplying electric power between both ends in the longitudinal direction. A plurality of slits cut in a direction perpendicular to the longitudinal direction are formed. Th...

Claims

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Application Information

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IPC IPC(8): H05B3/44H05B3/10H05B3/14
CPCH05B3/04H05B3/44H05B3/145H05B3/06H05B3/14G03G15/20
Inventor 松冈广彰小西政则西尾章
Owner PANASONIC CORP
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