CN102386687A - Low-voltage electric heater induction power supply device - Google Patents
Low-voltage electric heater induction power supply device Download PDFInfo
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- CN102386687A CN102386687A CN2011103823261A CN201110382326A CN102386687A CN 102386687 A CN102386687 A CN 102386687A CN 2011103823261 A CN2011103823261 A CN 2011103823261A CN 201110382326 A CN201110382326 A CN 201110382326A CN 102386687 A CN102386687 A CN 102386687A
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Abstract
The invention provides a low-voltage electric heater induction power supply device. The same AC power lines penetrate the iron cores of all current transformers, each of the current transformer comprises a closed loop iron core and a coil, a power-type resistor enabling an AC power supply to provide corresponding current is connected in series with an AC power supply loop formed by the AC power lines, the output end of each current transformer is respectively connected with a bridge rectifier circuit, the rectifying output end of each bridge rectifier circuit is respectively connected in parallel with a boost capacitor and an electric heating tube, and all the electric heating tubes are combined together to form a low-voltage electric heater. The device obtains electric energy from the induction field of the AC power line, and the electric energy is embodied in heavier alternating current and lower AC voltage. The electric energy can provide tens of volts of DC voltage and 1A working power supply to one electric heating tube after rectification and capacitance increase, and the surface temperature of the electric heating tubes can reach higher than 70 DEG C. The structure of the power supply device is particularly suitable for the centralized power supply to a plurality of low-voltage electric heaters within a certain area such as a block or a residential villa, and has the characteristic of remarkably saved electric energy.
Description
Technical field
The invention belongs to the inductive power transfer technology, particularly relate to a kind of low tension warmer inductive power supply device.
Background technology
As everyone knows; Inductive power transfer is a kind of mode of contactless power delivery; " the inductive power supply device " of the wherein a kind of power delivery mode number of being disclosed CN1771570 is disclosed, this device comprise the primary coil that connects power circuit and connect one or more loads for example lamp secondary coil and be used to change physical distance or relative bearing between primary coil and the secondary coil so that sense of control is answered the mechanism of electric supply installation amount of power.
In order to improve the efficient of above-mentioned inductive power supply device inductance coupling high, normally careful design is elementary, the configuration and the arrangement of secondary coil.Elementary, secondary coil is positioned in the close-fitting parts usually, and make every effort to elementary and secondary coil between the gap minimum.
Summary of the invention
The objective of the invention is for the mode that makes contactless power delivery more simple and disclose a kind of low tension warmer inductive power supply device.
The present invention takes following technical scheme for realizing above-mentioned purpose: a kind of low tension warmer inductive power supply device; Comprise the alternating electromotive force circuit; Characteristic is; Be installed with the same alternating current line of force in the iron core of each current transformer that is made up of closed loop iron core and coil, be in series with in the said ac power supply circuit that is made up of the alternating current line of force and make AC power that the power-type resistance of corresponding electric current is provided, the output of said each current transformer device connects a bridge rectifier respectively; The rectification output end of each bridge rectifier is parallel with a boost capacitor and a post electrothermal tube respectively, constitutes a low tension warmer by each post electrothermal tube.
The present invention can also take following technical measures:
The current ratio of the said current transformer and the alternating current line of force is 1: 10-20.
Said power-type resistance is the electric heater that is constituted by electrothermal tube.
Beneficial effect of the present invention and advantage are: this low tension warmer inductive power supply device obtains electric energy from alternating current line of force induction field; Said electric energy is to embody with bigger alternating current and lower alternating voltage; This electric energy can be a post electrothermal tube tens of volt direct voltages and the working power more than 1 ampere is provided after rectification and electric capacity lifting, the electrothermal tube surface temperature can reach more than 70 ℃.Test learns, the low tension warmer that constitutes as 6 posts, 8 posts, 10 posts and the 12 post electrothermal tubes of working power by this electric supply installation can be alone or in combination as the heating system in 4-20 square meter room.Its effect of power-type resistance of connecting in the ac power supply circuit of this electric supply installation is to make this ac power supply circuit have stable loop current; The loop current size is relevant with the induction field power; And it is how much irrelevant with the quantity of cross-under current transformer; Particularly power-type resistance can be replaced by the electric heater of corresponding power, and the structure of visible this electric supply installation is particularly useful for the for example centrally connected power supply of unit, a plurality of low tension warmers of villa dwelling house of certain limit, has the characteristics of remarkable saving electric energy.
Description of drawings
Accompanying drawing 1 is a low tension warmer inductive power supply device circuit schematic diagram.
Accompanying drawing 2 is that this inductive power supply device is a plurality of low tension warmer centrally connected power supply sketch mapes.
Embodiment
As shown in Figure 1; It is the inductive power supply device circuit of the low tension heating installation that constitutes by 220 volts of 1 kilowatt of electrothermal tube L of 10 post nominals; Connecting to be in series with in the ac power supply circuit that is made up of the alternating current line of force of kilowatt-hour meter H makes AC power that the power-type resistance R of corresponding electric current is provided; This resistance value 10-30 Ω all can, power is more than 3 kilowatts, this moment, ac power supply circuit can provide 10A above stable loop current.
Form closed loop iron core by C sections core or O sections core, magnetic core, constitute current transformer G at the closed loop iron core winding around, the current ratio of the current transformer and the alternating current line of force is 1: 10-20 all can.Be installed with the illustrated same alternating current line of force in the iron core of the G10 of current transformer G1-.The output of each current transformer device connects a bridge rectifier ZL1-ZL10 respectively; One and a post electrothermal tube L among the rectification output end difference parallel connection boosting capacitor C 1-C10 of each bridge rectifier; Boost capacitor can be selected electrochemical capacitor or polarity free capacitor for use, capacity 330-470 μ f, withstand voltage 40 volts of above getting final product.
Current transformer output end voltage shown in Figure 1 is that 5.3-7.5 volt, electric current are the 40-6-milliampere, and direct voltage is that 36-52 volt, electric current are the 1.2-1.5 ampere behind rectification and the capacitance boost.
As shown in Figure 2; This inductive power supply device is 5 low tension warmer centrally connected power supplies of same apartment; Each low tension warmer is constituted by 6 posts, 8 posts, 10 posts and 12 post electrothermal tubes respectively, and the power-type resistance R is by 220 volts of 1 kilowatt of electric heaters that electrothermal tube constitutes of 3 nominals.
The inductive power supply device of each low tension warmer constitutes by the boost capacitor C of current transformer G, bridge rectifier ZL and rectification output end parallel connection among Fig. 2, and each inductive power supply device circuit structure is seen Fig. 1.
Claims (3)
1. low tension warmer inductive power supply device; Comprise the alternating electromotive force circuit; It is characterized in that: be installed with the same alternating current line of force in the iron core of each current transformer that constitutes by closed loop iron core and coil; Being in series with in the said ac power supply circuit that is made up of the alternating current line of force makes AC power that the power-type resistance of corresponding electric current is provided; The output of said each current transformer device connects a bridge rectifier respectively, and the rectification output end of each bridge rectifier is parallel with a boost capacitor and a post electrothermal tube respectively, constitutes a low tension warmer by each post electrothermal tube.
2. inductive power supply device according to claim 1 is characterized in that: the current ratio of the said current transformer and the alternating current line of force is 1: 10-20.
3. inductive power supply device according to claim 1 is characterized in that: said power-type resistance is the electric heater that is constituted by electrothermal tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103823261A CN102386687A (en) | 2011-11-25 | 2011-11-25 | Low-voltage electric heater induction power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103823261A CN102386687A (en) | 2011-11-25 | 2011-11-25 | Low-voltage electric heater induction power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102386687A true CN102386687A (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103823261A Pending CN102386687A (en) | 2011-11-25 | 2011-11-25 | Low-voltage electric heater induction power supply device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102386687A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050133497A1 (en) * | 2003-12-05 | 2005-06-23 | Daifuku Co., Ltd. | Induction circuit for contactless power supply apparatus |
| CN201509159U (en) * | 2009-08-06 | 2010-06-16 | 广州霍斯通电气有限公司 | Self power supplying device and power cabinet |
| CN202334014U (en) * | 2011-11-25 | 2012-07-11 | 刘春元 | Low-voltage electric heater sensing power supply device |
-
2011
- 2011-11-25 CN CN2011103823261A patent/CN102386687A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050133497A1 (en) * | 2003-12-05 | 2005-06-23 | Daifuku Co., Ltd. | Induction circuit for contactless power supply apparatus |
| CN201509159U (en) * | 2009-08-06 | 2010-06-16 | 广州霍斯通电气有限公司 | Self power supplying device and power cabinet |
| CN202334014U (en) * | 2011-11-25 | 2012-07-11 | 刘春元 | Low-voltage electric heater sensing power supply device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120321 |