CN201119017Y - Ptc电加热器 - Google Patents

Ptc电加热器 Download PDF

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Publication number
CN201119017Y
CN201119017Y CNU2007200465502U CN200720046550U CN201119017Y CN 201119017 Y CN201119017 Y CN 201119017Y CN U2007200465502 U CNU2007200465502 U CN U2007200465502U CN 200720046550 U CN200720046550 U CN 200720046550U CN 201119017 Y CN201119017 Y CN 201119017Y
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China
Prior art keywords
ptc electric
strip
electric heating
electric heater
core pipe
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Expired - Lifetime
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CNU2007200465502U
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Inventor
郑进军
解忠
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Zhenjiang Dongfang Electric Heating Co., Ltd.
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Zhenjiang Dongfang Refrigeration & Air-Conditioner Equipment Fittings Co Ltd
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Abstract

本实用新型属于电加热装置,涉及一种以PTC材料为发热体的PTC电加热器。它包括有截面为矩形且内部安置了PTC电热元件、电极和绝缘层的芯管,芯管的外侧的两个大散热面上粘贴有散热条,所述的散热条包括一条弯折为多段的铝带,铝带的纵剖面形状为并排排列的多个三角形,铝带的上、下两侧分别由多个小平面组成。本实用新型导热环节少、热效率高、成本低。

Description

PTC电加热器
技术领域
本实用新型属于电加热装置,涉及一种以PTC材料为发热体的PTC电加热器。
背景技术
现有的用于空调器等电器中的PTC电加热器,其基本结构包括一个截面为矩形的金属芯管,在金属芯管内设置PTC电热元件、电极和绝缘层,在芯管外侧的两个较大的散热面上粘贴有散热条,散热条包括一段连续弯折呈波纹状的铝带和焊接在波纹状铝带上、下两面的两条铝板,芯管外壁与散热条一侧的铝板通过导热胶相互粘贴。这种结构的PTC电加热器,从PTC电加热元件到波纹状铝带之间存在的导热环节较多,并且波纹状铝带只能在波纹的峰、谷位置与两则的铝板相接触,其接触主要为线接触,接触面积小,这些因素都造成PTC电加热器的热传导损失较大,热效率低,抗老化性差。此外散热条需要两面焊接铝板,工序多、生产效率低、材料成本和制造成本高。
发明内容
本实用新型所要解决的技术问题是,提供一种导热环节少、热效率高、成本低的PTC电加热器。
本实用新型的PTC电加热器包括有截面为矩形且内部安置了PTC电热元件、电极和绝缘层的芯管,芯管的外侧的两个大散热面上粘贴有散热条,所述的散热条包括一条弯折为多段的铝带,铝带的纵剖面形状为并排排列的多个三角形,铝带的上、下两侧分别由多个小平面组成。
铝带一侧的小平面通过焊接或粘贴的方式与一条铝板相接触,另一侧的小平面直接粘贴在芯管上。
所述芯管的两个大散热面的壁厚小于两个小散热面的壁厚。
本实用新型结构中,作为散热条的主体的铝带纵剖面形状为并排排列的三角形结构,因而其上、下两面形成多个小平面,这样就使得铝带与铝板及芯管外壁的接触形成面接触,从而提高了导热效率。另外,由于仅在铝带一侧设置铝板,另一侧直接与芯管粘贴,这样不仅减少了导热环节,提高了热效率,并且也减化了制造工序、节省了材料、降低了成本;此外,芯管具有较薄的大散热面,也有利于热量的迅速传递。
附图说明
图1是本实用新型的纵剖面结构示意图;
图2是图1中A局部的放大结构示意图;
图3是本实用新型的散热条中一段铝带的纵剖面放大结构示意图;
图4是本实用新型的芯管的端面放大结构示意图。
具体实施方式
如图所示,本实用新型包括有芯管1和散热条2,芯管内设置有PTC电热元件、电极和绝缘层等常规部件。散热条2由一条铝带21和一条铝板22构成,散热条的纵剖面形状为多个并排排列的三角形(如图3),从而在铝带的上、下两面形成多个小平面211,其中一侧的小平面与铝板22焊接接触,另一侧的小平面与芯管1的大散热面11直接粘贴(如图1、图2所示)。矩形芯管的两个大散热面11的壁厚小于两个小散热面12的壁厚。

Claims (3)

1、一种PTC电加热器,包括有截面为矩形且内部安置了PTC电热元件、电极和绝缘层的芯管(1),芯管外侧的两个大散热面(11)上粘贴有散热条(2),所述的散热条包括一条弯折为多段的铝带(21),其特征是:铝带的纵剖面形状为并排排列的多个三角形,铝带的上、下两侧分别由多个小平面(211)组成。
2、根据权利要求1所述的PTC电加热器,其特征是:铝带一侧的小平面(211)与一条铝板(22)相接触,另一侧的小平面(211)直接粘贴在芯管(1)上。
3、根据权利要求1或2所述的PTC电加热器,其特征是:所述芯管的两个大散热面(11)的壁厚小于两个小散热面(12)的壁厚。
CNU2007200465502U 2007-10-26 2007-10-26 Ptc电加热器 Expired - Lifetime CN201119017Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200465502U CN201119017Y (zh) 2007-10-26 2007-10-26 Ptc电加热器

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Application Number Priority Date Filing Date Title
CNU2007200465502U CN201119017Y (zh) 2007-10-26 2007-10-26 Ptc电加热器

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CN201119017Y true CN201119017Y (zh) 2008-09-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103096535A (zh) * 2011-11-08 2013-05-08 上海华族实业有限公司 翻边卡接固定散热条的ptc电加热器
CN103179700A (zh) * 2011-12-22 2013-06-26 埃贝赫卡腾有限两合公司 生热元件及电加热装置
CN105682268A (zh) * 2016-04-01 2016-06-15 徐成东 Ptc电加热器
US9927147B2 (en) 2012-06-27 2018-03-27 Byd Company Limited PTC electric heating assembly, electric heating device and electric vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103096535A (zh) * 2011-11-08 2013-05-08 上海华族实业有限公司 翻边卡接固定散热条的ptc电加热器
CN103179700A (zh) * 2011-12-22 2013-06-26 埃贝赫卡腾有限两合公司 生热元件及电加热装置
CN103179700B (zh) * 2011-12-22 2016-04-13 埃贝赫卡腾有限两合公司 生热元件及电加热装置
US9338831B2 (en) 2011-12-22 2016-05-10 Eberspächer Catem Gmbh & Co. Kg Heat generating element
US9927147B2 (en) 2012-06-27 2018-03-27 Byd Company Limited PTC electric heating assembly, electric heating device and electric vehicle
CN105682268A (zh) * 2016-04-01 2016-06-15 徐成东 Ptc电加热器

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: ZHENJIANG ORIENT ELECTRIC HEATING SCIENCE AND TECH

Free format text: FORMER NAME: ZHENJIANG CITY ORIENT REFRIGERATION AIR CONDITIONER EQUIPMENT FITTING CO., LTD.

CP03 Change of name, title or address

Address after: No. five, Feng Shan Road, Dagang Town, New District, Jiangsu, Zhenjiang Province, 212312, 18

Patentee after: Zhenjiang Dongfang Electric Heating Co., Ltd.

Address before: No. five, Feng Shan Road, Dagang Town, New District, Jiangsu, Zhenjiang Province, 212132, 18

Patentee before: Zhenjiang Dongfang Refrigeration & Air-Conditioner Equipment Fittings Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20080917

CX01 Expiry of patent term