JPH0336863U - - Google Patents
Info
- Publication number
- JPH0336863U JPH0336863U JP9654189U JP9654189U JPH0336863U JP H0336863 U JPH0336863 U JP H0336863U JP 9654189 U JP9654189 U JP 9654189U JP 9654189 U JP9654189 U JP 9654189U JP H0336863 U JPH0336863 U JP H0336863U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic fluid
- thermal head
- common flow
- discharge port
- flow channel
- 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.)
- Pending
Links
- 239000011553 magnetic fluid Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Electronic Switches (AREA)
Description
第１図、第２図及び第３図は本考案の一実施例
を示す平面断面図、正面断面図及び側面断面図、
第４図は本考案の効果を説明するためのサーマル
ヘツド内磁性流体温度分布を示す図、第５図は本
考案のサーマルヘツドを用いたサーマルプリンタ
の要部を示す部分的断面図、第６図は磁性流体冷
却メカニズムを説明するブロツク構成図、第７図
と第８図は従来のサーマルヘツドを示す斜視外観
図と側面断面図、第９図及び第１０図は同一出願
人が既に提案済のサーマルヘツドの平面断面図と
正面断面図である。
１……熱抵抗基板、２，１２……発熱体、３…
…共通導体、４……個別導体、５……冷却フイン
、６……熱伝導性部材、７，８，９……番号無し
、１０……基板、１１……絶縁性支持板、１３…
…個別流路、１４，１５……共通流路、１６……
液入口、１７，２１……液出口、１８……端部流
路、２０……折返し流路、２２……隔壁、５０…
…サーマルヘツド、５１……プラテン、５２……
駆動軸、５３……ローラ、５４……リング状マグ
ネツト、５５……弾性体、５６……インクリボン
、５７……転写紙、５８……熱交換部、５９……
マグネツト、６０……温度センサ、６１……冷却
器、６２……ポンプ、６３……回収器、６４……
差動増幅器、６５……電力増幅器。
1, 2, and 3 are a plan sectional view, a front sectional view, and a side sectional view showing an embodiment of the present invention,
FIG. 4 is a diagram showing the temperature distribution of the magnetic fluid inside the thermal head to explain the effects of the present invention, FIG. 5 is a partial cross-sectional view showing the main parts of a thermal printer using the thermal head of the present invention, and FIG. The figure is a block configuration diagram explaining the magnetic fluid cooling mechanism, Figures 7 and 8 are perspective external views and side sectional views showing conventional thermal heads, and Figures 9 and 10 are already proposed by the same applicant. FIG. 3 is a plan sectional view and a front sectional view of the thermal head of FIG. 1... Heat resistance board, 2, 12... Heating element, 3...
... common conductor, 4 ... individual conductor, 5 ... cooling fin, 6 ... thermally conductive member, 7, 8, 9 ... no number, 10 ... substrate, 11 ... insulating support plate, 13 ...
...Individual flow path, 14, 15...Common flow path, 16...
Liquid inlet, 17, 21... Liquid outlet, 18... End channel, 20... Return channel, 22... Partition wall, 50...
...Thermal head, 51...Platen, 52...
Drive shaft, 53...Roller, 54...Ring magnet, 55...Elastic body, 56...Ink ribbon, 57...Transfer paper, 58...Heat exchange section, 59...
Magnet, 60... Temperature sensor, 61... Cooler, 62... Pump, 63... Recovery device, 64...
Differential amplifier, 65...power amplifier.
Claims (1)
部に、前記発熱体下部夫々に設けた磁性流体を還
流する個別流路と、該個別流路の入出力開口部夫
々を連結するよう設けた共通流路を備え、これら
流路に温度によつて磁気特性が変化する磁性流体
を循環させて冷却するサーマルヘツドにおいて、 前記共通流路の一方端を磁性流体注入口とし他
方の共通流路の同一方向端を磁性流体排出口とす
るとき、前記磁性流体排出口に連結され且該排出
口側共通流路に沿つて折返した流路を設けたこと
を特徴とするサーマルヘツドの構造。[Claims for Utility Model Registration] Inside a thermal head in which a large number of heating elements are disposed, individual channels for circulating magnetic fluid provided at the bottom of each of the heating elements, and input/output openings of the individual channels. In a thermal head that is provided with a common flow path provided to connect each of the two, and is cooled by circulating a magnetic fluid whose magnetic properties change depending on temperature in these flow paths, one end of the common flow path is connected to a magnetic fluid inlet. When the end of the other common flow channel in the same direction is a magnetic fluid discharge port, a flow channel is provided that is connected to the magnetic fluid discharge port and turned back along the common flow channel on the discharge port side. Structure of thermal head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9654189U JPH0336863U (en) | 1989-08-18 | 1989-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9654189U JPH0336863U (en) | 1989-08-18 | 1989-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0336863U true JPH0336863U (en) | 1991-04-10 |
Family
ID=31645737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9654189U Pending JPH0336863U (en) | 1989-08-18 | 1989-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0336863U (en) |
-
1989
- 1989-08-18 JP JP9654189U patent/JPH0336863U/ja active Pending
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