CN204936514U - Heater and the laser printer containing above-mentioned heater - Google Patents
Heater and the laser printer containing above-mentioned heater Download PDFInfo
- Publication number
- CN204936514U CN204936514U CN201520258760.2U CN201520258760U CN204936514U CN 204936514 U CN204936514 U CN 204936514U CN 201520258760 U CN201520258760 U CN 201520258760U CN 204936514 U CN204936514 U CN 204936514U
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- temperature
- heater
- induction coil
- eddy
- control panel
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Abstract
The utility model provides the laser printer that a kind of heater contains above-mentioned heater, described heater comprises: induction coil, around described axle sleeve outer setting, described induction coil is used for passing into alternating current, and this alternating current is used for carrying out eddy-current heating to prism motor; Eddy-current heating control panel, be arranged at below induction coil, described eddy-current heating control panel has induced-current output, and this induced-current output is electrically connected with described induction coil, described eddy-current heating control panel is used for when environment temperature is lower than design temperature, starts the heating to prism motor; Insulating barrier, is arranged between described induction coil and described eddy-current heating control panel, and described insulating barrier is used for described induction coil and described eddy-current heating control panel electric insulation.The efficiency of heating surface of heater of the present utility model to the prism motor of laser printer is high.
Description
Technical field
The utility model relates to art of laser printers, particularly relates to heater that the prism motor for the laser printer to low temperature environment heats and the laser printer containing above-mentioned heater.
Background technology
The core component of laser printer is prism motor, and in working order, the rotating speed of prism motor is on average at 38000rpm, and rotating speed is higher, and technique is accurate.Under normal temperature (room temperature, usually at 25 degrees centigrade), the BDI of prism motor is 1.362KHz, and BDI is 700KHz under lower than the low temperature environment of-20 DEG C.Therefore prism motor also exists that also exist at low temperatures cannot the problem of constant speed.In order to adapt to low-temperature working environment, make up the blank of laser printer in field operations communicating terminal, prior art has carried out low temp compensating to prism motor, namely utilizes heater to heat to maintain normal duty to prism motor.Prior art adopts the mode of resistance heated to heat prism motor.
Particularly, please refer to the structural representation of the heater of the prior art shown in Fig. 1.Prism motor 5 is positioned in framework 9, there is bottom framework 9 base plate 8, prism motor 5 is positioned at above base plate 8, and this prism motor 5 has rotating shaft (not marking), this rotating shaft can be rotated, and rotating shaft has axle sleeve 3, one end of described axle sleeve 3 and heating means touch, and receive the heat of self-heating apparatus by heat exchange pattern, heat conducts to prism motor 5 by rotating shaft by axle sleeve 3, heats prism motor 5.
Particularly, the structure of described heater comprises: some resistance-type heating films 1, for generating heat when passing into electric current; Heat-conducting plate 2, is arranged at above resistance-type heating film 1, and for future, the heat of self-resistance formula heating film 1 conducts; Heating column 7, its one end is connected with heat-conducting plate 2, the other end is connected by the below of heat-conducting glue 4 with axle sleeve 3, heating column 7 is for receiving the heat from heat-conducting plate 2, and by above-mentioned heat conduction to the other end of axle sleeve 3, be provided with heat-conducting glue 4 between described heating column 7 and described axle sleeve 3 with better transferring heat.Heat-conducting plate 6 is fixed on below base plate 8 by two joint pins 2.
The efficiency of the heater of prior art is low, and the life-span is short, and reliability is not high, needs often to safeguard.
Utility model content
The technical problem that the utility model solves provides a kind of heater, laser printer containing above-mentioned heater, high to the efficiency of heating surface of the prism motor of laser printer.
A kind of heater, for heating prism motor, described prism motor has the rotating shaft that can rotate, described rotating shaft has axle sleeve, comprise: induction coil, around described axle sleeve outer setting, described induction coil is used for passing into alternating current, and this alternating current is used for carrying out eddy-current heating to prism motor;
Eddy-current heating control panel, be arranged at below induction coil, described eddy-current heating control panel has induced-current output, and this induced-current output is electrically connected with described induction coil, described eddy-current heating control panel is used for when environment temperature is lower than design temperature, starts the heating to prism motor;
Insulating barrier, is arranged between described induction coil and described eddy-current heating control panel, and described insulating barrier is used for described induction coil and described eddy-current heating control panel electric insulation.
Alternatively, the material of described induction coil and the material of described axle sleeve are metal.
Alternatively, the material of described induction coil is copper alloy.
Alternatively, also comprising: at least one temperature-detecting device, be arranged at outside described axle sleeve, for detecting the temperature value of described axle sleeve, described temperature value being transferred to described eddy-current heating control panel.
Alternatively, described heater comprises: the first temperature-detecting device and the second temperature-detecting device, and described first temperature-detecting device and the second temperature-detecting device are arranged on the diverse location outside described axle sleeve.
The utility model also provides the laser printer containing described heater.
Compared with prior art, the utility model has the following advantages:
The heater that the utility model provides has and utilizes way of electromagnetic induction to heat prism motor, avoid the life-span low problem of resistance-type heating, the utility model eliminates the design of heat-conducting glue structure, because this simplify the structure of whole heater, heater is made to be more prone to assembling, the problem that the poor reliability that the axle sleeve that also can prevent heat-conducting glue from entering prism motor causes, needs are safeguarded, is directly existed by induction coil;
Further optimally, the temperature-detecting device of heater described in the utility model directly gathers the temperature value outside axle sleeve, more reacts the real environment temperature residing for prism motor;
Further optimally, temperature-detecting device described in the utility model utilizes two thermistors, can the more reliable and temperature of the detection axle sleeve of low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the heater of prior art.
Fig. 2 is the structural representation of the heater of the utility model embodiment.
Detailed description of the invention
The efficiency of prior art heater is low, and the life-span is short, reliability is not high, needs often to safeguard, studies discovery through inventor, heat owing to adopting heat exchange pattern, a part from the heat of resistance-type heating film 1 can be scattered and disappeared with heat radiation form by environment towards periphery, all the other heats then through multiple parts such as heat-conducting plate, heat-conducting glue and heating columns with the conduction of heat transfer form, middle heat loss is obvious, therefore, the efficiency utilizing heat exchange pattern to heat is on the low side.And owing to adopting heat-conducting glue to be filled between heating column and axle sleeve, this heat conduction glue-line likely can overflow into axle sleeve in assembling or use procedure, cause the potential safety hazard of prism motor.Inventor considers, utilizes induction heating mode to heat prism motor.But how the layout of the heater of eddy-current heating is arranged, while can ensureing to improve the efficiency of heating surface, do not increase the complexity of heater, improve the efficiency of heating surface, the reliability of heater.
In order to solve the problem, the utility model proposes a kind of heater, for heating prism motor, described prism motor has the rotating shaft that can rotate, described rotating shaft has axle sleeve, comprising: induction coil, around described axle sleeve outer setting, described induction coil is used for passing into alternating current, and this alternating current is used for carrying out eddy-current heating to prism motor;
Eddy-current heating control panel, be arranged at below induction coil, described eddy-current heating control panel has induced-current output, and this induced-current output is electrically connected with described induction coil, described eddy-current heating control panel is used for when environment temperature is lower than design temperature, starts the heating to prism motor;
Insulating barrier, is arranged between described induction coil and described eddy-current heating control panel, and described insulating barrier is used for described induction coil and described eddy-current heating control panel electric insulation.
Please refer to the structural representation of the heater of the utility model embodiment shown in Fig. 2.
Prism motor 500 is positioned in framework 900, there is bottom framework 9 base plate 800, prism motor 500 is positioned at above base plate 800, and this prism motor 500 has rotating shaft (not marking), this rotating shaft can be rotated, and the bottom of rotating shaft has axle sleeve 300, the some induction coils 100 of the outer setting of described axle sleeve 300, around described axle sleeve 300 outer setting, described induction coil 100 is for passing into alternating current, and this alternating current is used for carrying out eddy-current heating to prism motor.As an embodiment, the material of described induction coil 100 is identical with the material of described rotating shaft, can realize the Fast Heating of countershaft like this with lower power.As another embodiment of the present utility model, the material of described induction coil 100 is copper alloy.The structure such as heat-conducting glue, heating column is not had in heater of the present utility model, simplify the structure of heater, it also avoid heat-conducting glue in the pollution of assembling or may cause axle sleeve in use procedure and impact, improve the reliability of heating, reduce the maintenance of heater.
Eddy-current heating control panel 600 is arranged at below induction coil 100, and as an embodiment, described eddy-current heating control panel 600 is pcb board.Described eddy-current heating control panel 600 is for controlling the eddy-current heating process of induction coil 100 based on the temperature (or environment temperature) of prism motor.Described eddy-current heating control panel 600 has induced-current output, and this induced-current output is electrically connected with described induction coil 100, and described eddy-current heating control panel 600, for when environment temperature is lower than design temperature, starts the heating to prism motor.Thermal control plate 600 of the present utility model detects the temperature of the axle sleeve 300 of rotating shaft, using the temperature of this axle sleeve 300 as environment temperature, when the described environment temperature of detection is low temperature (being no more than design temperature), then input induced-current by induced-current output to induction coil 100, heat, until detect described environment temperature to reach target temperature, then enter keeping warm mode, the induced-current of the most basic maintenance keeping warm mode is only provided to induction coil; Otherwise, when the described environment temperature of detection is normal temperature (exceeding design temperature), then continue to detect until environment temperature is low temperature.
Insulating barrier 400, is arranged between described induction coil 100 and described eddy-current heating control panel 500, and described insulating barrier 400 is for described induction coil 100 and described eddy-current heating control panel 600 electric insulation.
At least one temperature-detecting device of heater described in the utility model (not marking in figure), is arranged at outside described axle sleeve 300, for detecting the temperature value of described axle sleeve 100, described temperature value is transferred to described eddy-current heating control panel 600.As an embodiment, heater described in the utility model comprises: the first temperature-detecting device and the second temperature-detecting device, described first temperature-detecting device and the second temperature-detecting device are arranged on the diverse location outside described axle sleeve, adopt two or more temperature-detecting device, can when a temperature-detecting device occurs abnormal, can detect the temperature of axle sleeve, improve the reliability of system.
The winding mode of induction coil described in the utility model, the diameter of coil need the size of the operating ambient temperature of reference laser printer, target temperature, induced-current and induced voltage to carry out concrete selection and setting.When the laser printer containing above-mentioned heater is applied to low temperature environment, apply of the present utility model can faster heating prism motor.Through inventor's experimental verification, owing to have employed heater of the present utility model, to the efficiency of heating surface of prism motor more than 85%, save electric energy about 30%, the mean free error time reaches 60,000 hours.From low temperature environment, the heater of existing resistance heated needs preheating 5 minutes, and can not ensure one-shot rate, and method of the present utility model then can realize rapidly pre-warming (preheating within 2 minutes), and the one-shot rate after preheating is 100%.
The utility model also provides a kind of method of work of described heater, for heating the prism motor under low temperature environment.First described heater detects the temperature of prism motor in the course of the work.
The device of probe temperature has multiple, such as infrared test or thermocouple assay, or thermistor test, considers that thermistor can be tested with lower cost, the element of the utility model preferred thermistor mount bit test temperature.The position of probe temperature can be placed in the environment residing for laser printer, or any part of laser printer, for the ease of the system integration and the accuracy improving temperature test, temperature testing device is arranged on rotating shaft (or axle sleeve) place of prism motor by the utility model, utilizes the temperature value of this rotating shaft or axle sleeve as environment temperature.
In order to the reliability of temperature test can be ensured, the utility model provides at least two thermistors, if the temperature difference of the rotating shaft of the prism motor that described at least two thermistors detect is less than or equal to permissible value, then illustrate that these two thermistors are reliably working properly, then the temperature using the mean temperature of these two thermistors as this prism motor; If the temperature difference of the rotating shaft of the prism motor that described at least two thermistors detect is greater than described permissible value, thermistor then may be had to there occurs fault, temperature value less in the temperature value then two thermistor tests obtained is as the temperature of prism motor, and produce warning reminding signal by eddy-current heating control panel, implement as one, described permissible value is 3-10 degree Celsius.Those skilled in the art can arrange described permissible value flexibly.
After the temperature obtaining described prism motor, if the temperature of described prism motor is lower than design temperature, then eddy-current heating control panel starts eddy-current heating, and alternating current is inputed to induction coil; Described design temperature is 8-15 degree Celsius, and described target temperature is 25 degrees Celsius.Described eddy-current heating continues to carry out until the temperature of described prism motor reaches target temperature.
After reaching target temperature, described eddy-current heating control panel, by the electric current of the induction coil of adjustment input, makes the electric current passing into induction coil meet prism motor and maintains target temperature.
To sum up, the heater that the utility model provides has and utilizes way of electromagnetic induction to heat prism motor, avoid the life-span low problem of resistance-type heating, the utility model eliminates the design of heat-conducting glue structure, because this simplify the structure of whole heater, make heater be more prone to assembling, the problem that the poor reliability that the axle sleeve that also can prevent heat-conducting glue from entering prism motor causes, needs are safeguarded, directly existed by induction coil;
Further optimally, the temperature-detecting device of heater described in the utility model directly gathers the temperature value outside axle sleeve, more reacts the real environment temperature residing for prism motor;
Further optimally, the material of described electromagnetic induction coil described in the utility model and the material of axle sleeve are metal, and both materials are as far as possible identical or approximate, can reduce the power consumption of eddy-current heating further;
Further optimally, temperature-detecting device described in the utility model utilizes two thermistors, can the more reliable and temperature of the detection axle sleeve of low cost.
Therefore, above-mentioned preferred embodiment is only and technical conceive of the present utility model and feature is described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (6)
1. a heater, for heating prism motor, described prism motor has the rotating shaft that can rotate, described rotating shaft has axle sleeve, it is characterized in that, comprising: induction coil, around described axle sleeve outer setting, described induction coil is used for passing into alternating current, and this alternating current is used for carrying out eddy-current heating to prism motor;
Eddy-current heating control panel, be arranged at below induction coil, described eddy-current heating control panel has induced-current output, and this induced-current output is electrically connected with described induction coil, described eddy-current heating control panel is used for when environment temperature is lower than design temperature, starts the heating to prism motor;
Insulating barrier, is arranged between described induction coil and described eddy-current heating control panel, and described insulating barrier is used for described induction coil and described eddy-current heating control panel electric insulation.
2. heater as claimed in claim 1, it is characterized in that, the material of described induction coil and the material of described axle sleeve are metal.
3. heater as claimed in claim 2, it is characterized in that, the material of described induction coil is copper alloy.
4. heater as claimed in claim 1, is characterized in that, also comprises: at least one temperature-detecting device, be arranged at outside described axle sleeve, for detecting the temperature value of described axle sleeve, described temperature value being transferred to described eddy-current heating control panel.
5. heater as claimed in claim 1, it is characterized in that, described heater comprises: the first temperature-detecting device and the second temperature-detecting device, and described first temperature-detecting device and the second temperature-detecting device are arranged on the diverse location outside described axle sleeve.
6. a laser printer, is characterized in that, this laser printer contains heater according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520258760.2U CN204936514U (en) | 2015-04-27 | 2015-04-27 | Heater and the laser printer containing above-mentioned heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520258760.2U CN204936514U (en) | 2015-04-27 | 2015-04-27 | Heater and the laser printer containing above-mentioned heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204936514U true CN204936514U (en) | 2016-01-06 |
Family
ID=55003962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520258760.2U Withdrawn - After Issue CN204936514U (en) | 2015-04-27 | 2015-04-27 | Heater and the laser printer containing above-mentioned heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204936514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162977A (en) * | 2015-04-27 | 2016-11-23 | 上海传真通信设备技术研究所有限公司 | Heater and method of work, laser printer containing above-mentioned heater |
| CN107317948A (en) * | 2016-04-27 | 2017-11-03 | 柯尼卡美能达株式会社 | Image read-out and its control method |
-
2015
- 2015-04-27 CN CN201520258760.2U patent/CN204936514U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162977A (en) * | 2015-04-27 | 2016-11-23 | 上海传真通信设备技术研究所有限公司 | Heater and method of work, laser printer containing above-mentioned heater |
| CN106162977B (en) * | 2015-04-27 | 2019-12-27 | 上海航天智能装备有限公司 | Heating device, working method and laser printer comprising heating device |
| CN107317948A (en) * | 2016-04-27 | 2017-11-03 | 柯尼卡美能达株式会社 | Image read-out and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180329 Address after: 201112 No. 3286, Ting Lou Road, Shanghai, Minhang District Patentee after: Shanghai Aerospace Intelligent Equipment Co., Ltd. Address before: 200233 Tianlin Road, Shanghai, 128-2 No. Patentee before: SHANGHAI FAX COMMUNICATION TECHNOLOGY RESEARCH INSTITUTE CO., LTD. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20191227 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20191227 |