CN201279978Y - Thermal printing head - Google Patents
Thermal printing head Download PDFInfo
- Publication number
- CN201279978Y CN201279978Y CNU2008201736421U CN200820173642U CN201279978Y CN 201279978 Y CN201279978 Y CN 201279978Y CN U2008201736421 U CNU2008201736421 U CN U2008201736421U CN 200820173642 U CN200820173642 U CN 200820173642U CN 201279978 Y CN201279978 Y CN 201279978Y
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- China
- Prior art keywords
- heating resistor
- heat
- heat insulation
- electrode
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a printer, in particular to a heat-sensitive print head with a thermal insulation window. The heat-sensitive print head comprises a base plate made of insulating material, heating resistance blocks arranged along the printing direction are formed on the base plate, wire electrodes connected with the heating resistance blocks are arranged on the side surfaces of the heating resistance blocks, and the wire electrodes comprise common electrodes and individual electrodes. The heat-sensitive print head is characterized in that thermal insulation notches are formed on the wire electrodes. The utility model can partially prevent the heat generated by the heating resistors from being transferred to the secondary printing direction to lead to heat loss and improve the thermal efficiency of the heat-sensitive print head.
Description
Technical field:
The utility model printer concerning foreign affairs at length says it is a kind of thermal printing head.
Background technology:
As everyone knows, generally speaking, thermal printing head (thermal print head, to call TPH in the following text) comprise the substrate that constitutes by insulating materials, substrate generally adopts ceramic material, the resistive layer that forms by resistance material on the substrate, resistive layer is provided with the conductive layer that metal material forms, form the heating resistor band of arranging along Print direction that forms by the polylith resistance material through over etching, the direction parallel with the heating resistor band be called leading India side to, vertical with the heating resistor band at grade direction is called secondary Print direction, the both sides of heating resistor band (secondary Print direction) are provided with the lead electrode that is connected with the heating resistor band that is formed by conductive layer, and lead electrode is divided into common electrode and individual electrode.
Existing thermal printing head is that insulated substrate is provided with a plurality of heating resistor pieces composition heating resistor bands, the side of heating resistor piece is provided with common electrode and individual electrode, apply certain voltage for the heating resistor piece by common electrode and individual electrode, the heating resistor piece will produce certain heat raises the temperature of self, and with the thermal energy transfer function that realization is printed to printing consumables, heating resistor piece adstante febre, the heat that is produced must have the transmission of part by common electrode and individual electrode and loss occur, makes the thermal efficiency variation of heating resistor piece, the waste energy.
Summary of the invention:
In order to solve such problem, the utility model provides a kind of brand-new electrode design, partly cuts off the transmission of heat on lead electrode, improves the thermal efficiency of heating resistor.
The utility model can reach by following measure:
A kind of thermal printing head, comprise the substrate that constitutes by insulating materials, form the heating resistor piece of arranging along Print direction on the substrate, the side of heating resistor piece is provided with the lead electrode that is connected with the heating resistor piece, lead electrode is divided into common electrode and individual electrode, it is characterized in that lead electrode is provided with heat insulation notch, like this, can significantly reduce the thermal loss that heat that heating resistor produces causes to the transmission of sub scanning direction, improve the thermal efficiency of thermal printing head.
Heat insulation notch described in the utility model is general parallel with Print direction, and flute length can also can be equal to or less than the length (along the length of Print direction) of heating resistor piece greater than the length of heating resistor piece.
Heat insulation notch described in the utility model can be arranged on common electrode and the individual electrode simultaneously, also can only be provided with on common electrode or individual electrode, can also partly be provided with on common electrode or individual electrode.
The beeline of heat insulation notch described in the utility model and heating resistor piece is between 0～1mm, promptly along the beeline of heat insulation notch of secondary Print direction and heating resistor piece, in the heat insulation notch resistance material can be arranged, can there be resistance material yet, when the beeline of heat insulation notch and heating resistor piece during less than 0.01mm, there is not resistance material in the described heat insulation notch
The utility model is owing to adopt said structure, and the thermal loss that can partly stop heat that heating resistor produces to cause to the transmission of secondary Print direction improves the thermal efficiency of thermal printing head.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A profile of Fig. 1.
Mark among the figure: insulated substrate 1, heating resistor piece 2, common electrode 3, individual electrode 4, heat insulation notch 5, resistive layer 6, conductor layer 7.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
As shown in the figure; a kind of thermal printing head; comprise the substrate 1 that constitutes by insulating materials; insulating materials generally adopts pottery; technology such as employing plated film form resistive layer 6 on insulated substrate 1; resistive layer 6 is provided with the conductor layer 7 that is formed by metal material; form the heating resistor piece of arranging along Print direction 2 on the substrate 1 through being etched in; the side of heating resistor piece 2 is provided with the lead electrode that is connected with heating resistor piece 2; lead electrode is divided into common electrode 3 and individual electrode 4; above-mentioned same as the prior art; this does not give unnecessary details; feature of the present utility model is that lead electrode is provided with heat insulation notch 5; heat insulation notch 5 is general elongated and parallel with Print direction; can be along the Print direction flute length greater than the length of heating resistor piece 2; also can be equal to or less than the length of heating resistor piece 2; heat insulation notch 5 can be arranged on common electrode 3 and the individual electrode 4 simultaneously; also can only on common electrode 3 or individual electrode 4, be provided with; can also partly on common electrode 3 or individual electrode 4, be provided with; heat insulation notch and heating resistor piece along the beeline of secondary Print direction between 0～1mm; in the heat insulation notch 5 resistive layer 6 can be arranged; can there be resistive layer 6 yet; when the beeline of heat insulation notch 5 and heating resistor piece 2 during less than 0.01mm; there is not resistance material in the described heat insulation notch 5; because it is different with the material that forms conductive layer 7 to form the material of resistive layer 6; so the used materials and methods of etching resistive layer 6 and conductive layer 7 is also inequality; like this; can select as required whether to leave resistance material in the heat insulation notch 5; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1, a kind of thermal printing head, comprise the substrate that constitutes by insulating materials, form the heating resistor piece of arranging along Print direction on the substrate, the side of heating resistor piece is provided with the lead electrode that is connected with the heating resistor piece, lead electrode is divided into common electrode and individual electrode, it is characterized in that lead electrode is provided with heat insulation notch.
2, a kind of thermal printing head according to claim 1, the beeline that it is characterized in that heat insulation notch and heating resistor piece do not have resistance material in the heat insulation notch during less than 0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201736421U CN201279978Y (en) | 2008-10-22 | 2008-10-22 | Thermal printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201736421U CN201279978Y (en) | 2008-10-22 | 2008-10-22 | Thermal printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201279978Y true CN201279978Y (en) | 2009-07-29 |
Family
ID=40926864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201736421U Expired - Fee Related CN201279978Y (en) | 2008-10-22 | 2008-10-22 | Thermal printing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201279978Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555515A (en) * | 2010-11-19 | 2012-07-11 | 罗姆股份有限公司 | Thermal print head and method of manufacturing the same |
-
2008
- 2008-10-22 CN CNU2008201736421U patent/CN201279978Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555515A (en) * | 2010-11-19 | 2012-07-11 | 罗姆股份有限公司 | Thermal print head and method of manufacturing the same |
| CN102555515B (en) * | 2010-11-19 | 2015-08-26 | 罗姆股份有限公司 | Thermal printing head and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 264200 Torch Road, hi tech Industrial Development Zone, Shandong, Weihai 159 Patentee after: SHANDONG HUALING ELECTRONICS CO., LTD. Address before: 264200 Torch Road, hi tech Industrial Development Zone, Shandong, Weihai 159 Patentee before: Hualing Electronics Co., Ltd., Shandong |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20171022 |