CN101841938B - Electrode connection structure of semi-conductor electric heating piece - Google Patents
Electrode connection structure of semi-conductor electric heating piece Download PDFInfo
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- CN101841938B CN101841938B CN2010101823544A CN201010182354A CN101841938B CN 101841938 B CN101841938 B CN 101841938B CN 2010101823544 A CN2010101823544 A CN 2010101823544A CN 201010182354 A CN201010182354 A CN 201010182354A CN 101841938 B CN101841938 B CN 101841938B
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Abstract
The invention provides an electrode connection structure of a semi-conductor electric heating piece, which belongs to the technical field of semi-conductor electric heating, and solves the problems that after a traditional semi-conductor electric heating piece is used for a long time, the contact area of the outer surface of an electrode with the piece body is reduced and the contact resistance between the electrode and the piece body is increased because of the thermal expansion and contraction of the piece body. In the electrode connection structure of the semi-conductor electric heating piece, the semi-conductor electric heating piece comprises a piece body and an electrode which is inlaid in the piece body; and the electrode is a strip structure which is hollow inside and is provided with a mesh hole on the side surface, the piece body on the inner side of the electrode and the piece body on the outer side of the electrode are connected with the piece body which passes through the mesh hole. The electrode connection structure can increase the conductive contact area between the piece body and the electrode, the contact area when in temperature rise is basically unchanged, and the contact resistance between the electrode and the piece body is reduced.
Description
Technical field
The invention belongs to the electrothermal semiconductor technical field, relate to the electrode connecting structure of a kind of electrode connecting structure, particularly a kind of semi-conductor electric heating piece.
Background technology
Semi-conductor electric heating piece has the dual-use function that converts electric energy to heat energy and volitional check temperature.The flexible semiconductor electrothermal piece can be applied on the devices such as floor heating, pipeline, valve, the pump housing, storage tank, like part such as Electric radiant Heating Film, heating cable, heating tape, limit warm electric heating piece etc. certainly.
The conventional semiconductor electrothermal piece comprises body and is embedded in intrinsic two electrodes, and body is mainly processed by the semi-conducting material of conductive exothermal, and electrode is solid copper stranded conductor, copper sheet, prints electrode or copper litz wire.Because the outer surface of electrode contacts with body, after these two electrifying electrodes, semiconductor will generate heat when electric current was flowed through body.
This semi-conductor electric heating piece is when bringing into use; Its performance can satisfy specification requirement; But along with the prolongation of service time, expand with heat and contract with cold because heating produces body, the area that causes the electrode outer surface to contact with body reduces; It is very big that contact resistance between electrode and the body becomes, and so just influenced semi-conductive serviceability widely.
Summary of the invention
The present invention is directed to above-mentioned problem; A kind of electrode connecting structure of semi-conductor electric heating piece is provided; The conductive contact surfaces that this electrode connecting structure can increase between body and the electrode is long-pending, and contact area is constant basically when heating up, and reduces the contact resistance between electrode and the body.
The present invention realizes through following technical proposal: a kind of electrode connecting structure of semi-conductor electric heating piece; Semi-conductor electric heating piece comprises body and is embedded in intrinsic electrode; It is characterized in that; Described electrode is the ribbon structure of inner hollow side band mesh, and the inboard body part of electrode is connected through the body part that passes mesh with the body part in the electrode outside.
Electrode of the present invention is made hollow form and is embedded in the body, and like this, the interior lateral surface of electrode all can touch body, makes the contact area of electrode and body increase, and has reduced the contact resistance between electrode and the body.After long-time energising; The heat that body produces makes body produce dilatancy; Contact area between electrode lateral surface and the body reduces; Also can expand but be positioned at the inboard body part of electrode, can strut electrode electrode is contacted with the body part in the electrode outside, the contact area of keeping electrode and body is constant basically.And the body part that is positioned at mesh can also can increase the contact area of electrode and body, can drive the inside and outside body part interlock of electrode simultaneously.
In the electrode connecting structure of above-mentioned a kind of semi-conductor electric heating piece; The body part of said electrode medial surface is the inner core of strip; Described electrode is scale copper, copper litz wire or the copper stranded conductor that is wrapped in the inner core lateral surface, or is coated in the conduction coat that mesh is worn in the inner core outside.The body part of electrode medial surface is processed inner core in advance, on inner core, make the electrode of the band mesh of hollow again.
In the electrode connecting structure of above-mentioned a kind of semi-conductor electric heating piece, described body material is same semiconductor material.
In the electrode connecting structure of above-mentioned a kind of semi-conductor electric heating piece; Described semi-conductor electric heating piece is for limit warm electric heating piece certainly; Its body is flat rectangle sheet; On body, have plurality of parallel isometric strip through-hole is set, above-mentioned electrode is two and is separately positioned in the body at all strip through-hole two ends.
Compared with prior art; Electrode surfaces externally and internally of the present invention all can contact with body; It is long-pending to have enlarged conductive contact surfaces, reduces the contact resistance between electrode and the body, and when long-time the use; Contact area between electrode and the body remains unchanged basically, can satisfy the specification requirement of using for a long time.
Description of drawings
Fig. 1 is from the structural representation of limitting warm electric heating piece.
Fig. 2 is the electrode structure sketch map of A-A section among Fig. 1.
Among the figure, 1, body; 11, strip through-hole; 2, electrode; 21, mesh; 22, the inboard body part of electrode; 23, the body part in the electrode outside; 24, pass the body part of mesh.
Embodiment
Below be specific embodiment of the present invention, and combine accompanying drawing that technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.
The present invention is an example to limit warm electric heating piece certainly; As shown in Figure 1; The warm electric heating piece of limitting certainly among the present invention comprises body 1 and two electrodes 2 that are embedded in the body 1; Body 1 is flat rectangle sheet, 11, two electrodes 2 of isometric strip through-hole are set are separately positioned in the body 1 at all strip through-hole 11 two ends having plurality of parallel on the body 1.
As shown in Figure 2, be the cutaway view of A-A electrode among Fig. 2, electrode 2 has the ribbon structure of mesh 21 for the inner hollow side, and the inboard body part 22 of electrode is connected through the body part 24 that passes mesh with body part 23 outside the electrode.Be that electrode 2 outer surfaces contact with body 1, electrode 2 inner surfaces contact with body 1, make the surfaces externally and internally of electrode 2 all can contact with body 1 like this, have increased the contact area between electrode 2 and the body 1, reduce the contact resistance between electrode 2 and the body 1.And the side of electrode 2 has mesh 21; Make the inboard body part 22 of electrode be connected through the body part 24 that passes mesh with the body part 23 in the electrode outside; When can increase the contact area of electrode 2 and body 1, also can drive 22,23 interlocks of the inside and outside body part of electrode.
The inboard body part 22 of electrode is an inner core of processing strip in advance; This electrode 2 is for being wrapped in scale copper or copper litz wire or the copper stranded conductor outside the inner core; When braiding, reserve and compile out the gap, or be coated in the conduction coat of inner core outside band mesh 21 as mesh 21.
Although this paper has used terms such as body 1, terminal box 2, through hole 3, binding post 4, lid 5, holddown groove 6 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (4)
1. the electrode connecting structure of a semi-conductor electric heating piece; Semi-conductor electric heating piece comprises body (1) and is embedded in the electrode (2) in the body (1); It is characterized in that; Described electrode (2) is the ribbon structure of inner hollow side band mesh (21), and the inboard body part (22) of electrode is connected through the body part (24) that passes mesh (21) with the body part (23) in the electrode outside.
2. the electrode connecting structure of a kind of semi-conductor electric heating piece according to claim 1; It is characterized in that; The inboard body part (22) of said electrode is the inner core of strip; Described electrode (2) is for to be wrapped in scale copper, copper litz wire or the copper stranded conductor of inner core lateral surface, or is coated in the conduction coat that mesh is worn in the inner core outside.
3. the electrode connecting structure of a kind of semi-conductor electric heating piece according to claim 1 and 2 is characterized in that, the material of described body (1) is same semiconductor material.
4. the electrode connecting structure of a kind of semi-conductor electric heating piece according to claim 3; It is characterized in that; Described semi-conductor electric heating piece is for limit warm electric heating piece certainly; Its body (1) is flat rectangle sheet, on body (1), has plurality of parallel isometric strip through-hole (11) is set, and above-mentioned electrode (2) is two and is separately positioned in the body (1) at all strip through-holes (11) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101823544A CN101841938B (en) | 2010-05-25 | 2010-05-25 | Electrode connection structure of semi-conductor electric heating piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101823544A CN101841938B (en) | 2010-05-25 | 2010-05-25 | Electrode connection structure of semi-conductor electric heating piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101841938A CN101841938A (en) | 2010-09-22 |
| CN101841938B true CN101841938B (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010101823544A Active CN101841938B (en) | 2010-05-25 | 2010-05-25 | Electrode connection structure of semi-conductor electric heating piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN101841938B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07235370A (en) * | 1994-02-23 | 1995-09-05 | Daito Tsushinki Kk | Heater |
| CN2604661Y (en) * | 2003-02-13 | 2004-02-25 | 大连华锐股份有限公司 | Calcium carbide furnace hollow electrode system hollow tube |
| JP2005302645A (en) * | 2004-04-15 | 2005-10-27 | Aruba Japan:Kk | Heating element structure |
| CN2739905Y (en) * | 2004-09-22 | 2005-11-09 | 李家俊 | Carbon fiber electric-heating tube lead-inelectrode connecting structure |
| CN201752142U (en) * | 2010-05-25 | 2011-02-23 | 浙江华源电热有限公司 | Electrode connecting structure of semiconductor electric heating piece |
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2010
- 2010-05-25 CN CN2010101823544A patent/CN101841938B/en active Active
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| CN101841938A (en) | 2010-09-22 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG DAMING NEW MATERIALS CO., LTD. Free format text: FORMER NAME: ZHEJIANG HUAYUAN ELECTRIC HEAT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311400 Fuyang Golf Road, Zhejiang, No. 166, No. Patentee after: ZHEJIANG DAMING NEW MATERIAL CO., LTD. Address before: 311400 Fuyang Golf Road, Zhejiang, No. 166, No. Patentee before: Zhejiang Huayuan Electric Heat Co., Ltd. |