CN2935692Y - Power source of DC low-voltage electric blanket - Google Patents
Power source of DC low-voltage electric blanket Download PDFInfo
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- CN2935692Y CN2935692Y CN 200620060110 CN200620060110U CN2935692Y CN 2935692 Y CN2935692 Y CN 2935692Y CN 200620060110 CN200620060110 CN 200620060110 CN 200620060110 U CN200620060110 U CN 200620060110U CN 2935692 Y CN2935692 Y CN 2935692Y
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- 238000001914 filtration Methods 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000003139 buffering effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000007257 malfunction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 5
- 240000002853 Nelumbo nucifera Species 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005669 field effect Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- WABPQHHGFIMREM-NOHWODKXSA-N lead-200 Chemical compound [200Pb] WABPQHHGFIMREM-NOHWODKXSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a DC low-pressure power supply of the electric heating blanket; the invention includes a rectifying filter circuit, a clamping circuit, a transformer, a start circuit, a IC controller, a low-pressure rectifying filter circuit, a frequency adjusting circuit, a feedback rectifying filter circuit; the invention subtly push the transformer to operate via the IC controller; before the power supply is provided to the current and the voltage of the IC controller and the transformer after the AC power supply integrates the DC power supply and after the conversion by the transformer, the current and the voltage which are provided to the load of the electric heating blanket all perform the rectifying and filtering procedures; at the same time, the frequency adjusting circuit and the IC controller are connected, so the stable low-pressure current and voltage can be effectively provided to the load of the electric heating blanket, therefore ensuring the safety of the people and reducing the occurrence rate of the malfunctions. Meanwhile, the IC controller consists of an IC chip and a switch effect field circuit which is connected with the IC chip, and subsequently the cost of the IC controller is effectively reduced, therefore reducing the product cost; the utility model is with simple structure and strong practicability.
Description
Technical field
The utility model relates to the electric blanket technical field, is meant a kind of power supply of dc low-voltage electric blanket especially.
Background technology
The electric blanket product has become the important partner of people's warming in winter.Yet, tradition electric blanket great majority are to realize by domestic lighting voltage, provide corresponding power supply by high voltage source in other words conj.or perhaps, 220V voltage for example, yet, the electric blanket of making power supply with high-tension electricity in use usually leaks electricity, phenomenon on fire, thereby personal life security is produced very big harmfulness; Be on the point of numerous generation in view of accident, avoid electric people and cause the generation of accidents such as fire, particularly for old man, child and the person of can't take care of oneself, with safety low-voltage direct electric heating blanket replace dangerous high pressure electric blanket major issue become.
At present, disclose 36 volts of electric blankets of a kind of low pressure at Chinese patent notification number CN2301826Y, wherein, comprised mains switch, thermosistor, power end by circuit is provided with 36 volts of isolating transformers, and the secondary winding of these 36 volts of isolating transformers is connected to behind the thermosistor and downlink connection multiply heating wire constitutes; This technical scheme only realizes simple voltage transitions with 36 volts of isolating transformers, do not take electric current, clutter etc. is integrated effectively, the defective that can have the current/voltage instability in the use, in case particularly under the situation of over-voltage and over-current, can't operate as normal, thus can cause phenomenon of the failure to take place; Therefore the low-voltage electroheating blanket that utilizes aforesaid way to provide not only causes puzzlement in use to people, and situation such as more seriously can cause danger equally is unfavorable for market competition.
Recently, industry is for the power supply that provides of electric blanket can be provided better, promoting some on market utilizes expensive IC sheet to realize, it holds at high price power supply, causes whole electric blanket price also to promote, so at ordinary consumer thereupon, can't accept, and the problem that has spread of voltage, insecurity, rate of breakdown height equally, its internal structure complexity is made inconvenience.
The utility model content
The utility model is at above-mentioned the deficiencies in the prior art, main purpose is to provide the power supply of low, the practical dc low-voltage electric blanket of a kind of cost, it can offer the stable low current voltage of electric blanket load effectively, guarantees the fail safe that people use, and reduces rate of breakdown.
For realizing above-mentioned purpose, the utility model is taked following technical scheme:
A kind of power supply of dc low-voltage electric blanket, comprise current rectifying and wave filtering circuit, clamp circuit, transformer, start-up circuit, IC controller, lower pressure rectifier filter circuit, frequency regulating circuit, feedback current rectifying and wave filtering circuit, described IC controller comprises IC chip and the switching effect field circuit that is connected with the IC chip, this switching effect field circuit is connected with transformer, comes voltage output between control IC chip and the transformer by disconnection, the conducting of this switching effect field circuit; Described frequency regulating circuit is adjusted circuit, IC optical coupling, feedback compensation circuit by electric current and voltage and is connected in sequence, being used for the electric blanket load crosses negative back the IC controller is carried out the frequency adjustment, described electric current and voltage is adjusted circuit and is connected with the lower pressure rectifier filter circuit, and the feedback compensation circuit is connected with the IC chip; Described current rectifying and wave filtering circuit connects start-up circuit, and start-up circuit is connected with the I C chip of IC controller, so that IC chip enable voltage to be provided; Described current rectifying and wave filtering circuit also is connected with transformer, clamp circuit, and clamp circuit is connected with transformer simultaneously, wherein can provide transformer direct current input voltage on the one hand, absorbs special-shaped ripple or the peak value ripple that transformer produces by clamp circuit on the other hand; Described transformer output is connected with lower pressure rectifier filter circuit, feedback current rectifying and wave filtering circuit, described lower pressure rectifier filter circuit is used to provide the voltage of electric blanket load, and the feedback current rectifying and wave filtering circuit is connected with the IC chip, provides follow-up starting resistor in order to give the IC chip.
The utility model preferred version is as follows:
The utility model also comprises a current foldback circuit, and this current foldback circuit and IC chip, switching effect field circuit are led and connected, and avoids giving under overcurrent condition the IC controller that protection is provided.
Described current rectifying and wave filtering circuit be provided with a buffering ac filter circuit between AC power is connected, voltage is to the impact of circuit when extenuating firm starting.
The utility model compared with prior art, its beneficial effect is as follows:
1. by the driving transformer work dexterously of IC controller, and the current/voltage that offers before the current/voltage of IC controller and transformer after AC power is integrated DC power supply and offer the electric blanket load after the transformer conversion all has the rectification of carrying out, filter, frequency regulating circuit is connected with the IC controller simultaneously, reach the effect in IC controller control transformer periodic duty loop, offer the stable low current voltage of electric blanket load effectively, guarantee the fail safe that people use, reduce rate of breakdown.
2.IC controller is to reach the switching effect field circuit that is connected with the IC chip by the IC chip to constitute, it reduces the cost of IC controller effectively, thereby reduces the cost of product, is more suitable for the numerous consumer groups.
3. the utility model is simple in structure, and is practical.
Description of drawings
Fig. 1 is the utility model circuit block diagram;
Fig. 2 is Fig. 1 particular circuit configurations schematic diagram;
Fig. 3 is that the utility model is used for application examples schematic diagram on the electric blanket.
1, buffering ac filter circuit 2, current rectifying and wave filtering circuit 3, clamp circuit 4, transformer 5, start-up circuit 6, IC controller 61, IC chip 62, switching effect field circuit 7, lower pressure rectifier filter circuit 8, frequency regulating circuit 81, electric current and voltage are adjusted circuit 82, optical coupling 83, feedback compensation circuit 9, feedback current rectifying and wave filtering circuit 10, current foldback circuit
100, power supply 200, lead 300, pad 400, heater element
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
See also shown in Figure 1; a kind of power supply of dc low-voltage electric blanket; comprise buffering ac filter circuit 1, current rectifying and wave filtering circuit 2, clamp circuit 3, transformer 4, start-up circuit 5, IC controller 6, lower pressure rectifier filter circuit 7, frequency regulating circuit 8, feedback current rectifying and wave filtering circuit 9, current foldback circuit 10; described buffering ac filter circuit 1 is located between AC power and the current rectifying and wave filtering circuit 2, in order to extenuate firm when starting voltage to the impact of circuit.Described IC controller 6 comprises IC chip 61 and the switching effect field circuit 62 that is connected with IC chip 61, this switching effect field circuit 62 is connected with transformer 4, comes voltage output between control IC chip 61 and the transformer 4 by disconnection, the conducting of this switching effect field circuit 62; Described frequency regulating circuit 8 is connected in sequence by electric current and voltage adjustment circuit 81, IC optical coupling 82, feedback compensation circuit 83, being used for the electric blanket load crosses negative back IC controller 6 is carried out the frequency adjustment, described electric current and voltage is adjusted circuit 81 and is connected with lower pressure rectifier filter circuit 7, and feedback compensation circuit 83 is connected with IC chip 61; Described current rectifying and wave filtering circuit 2 connects start-up circuit 5, and start-up circuit 5 is connected with the IC chip 61 of IC controller 6, to provide the IC chip 61 starting resistors; Described current rectifying and wave filtering circuit 2 also is connected with transformer 4, clamp circuit 3, clamp circuit 3 is connected with transformer 4 simultaneously, wherein can provide transformer 4 direct current input voltages on the one hand, absorb special-shaped ripple or the peak value ripple that transformer produces by clamp circuit 3 on the other hand; Described transformer 4 outputs are connected with lower pressure rectifier filter circuit 7, feedback current rectifying and wave filtering circuit 9, described lower pressure rectifier filter circuit 7 is used to provide the voltage of electric blanket load, and feedback current rectifying and wave filtering circuit 9 is connected with IC chip 61, provides follow-up starting resistor in order to give IC chip 61.Described current foldback circuit 10 and IC chip 61, switching effect field circuit 62 companies of leading avoid giving under overcurrent condition the IC controller to carry 6 for protection.
In conjunction with shown in Figure 2, be the utility model particular circuit configurations schematic diagram again; Wherein, alternating current is through fuse FUSE and thermistor RT input, capacitor C 1, L1 and L2 in buffering ac filter circuit 1, again after the rectifier bridge IC1 of current rectifying and wave filtering circuit 2 rectification to capacitor C 2, C3 filtering, filtered direct current one tunnel is inputed to the elementary TL1 of transformer 4, another road is input to 7 pin of the IC2 of the IC chip 61 in the IC controller 6 and gives 61 1 starting resistors of IC chip after resistance R 1 current limliting of start-up circuit 5, make IC chip IC 2 internal works; Export the grid of a positive voltage pulse from 6 pin of IC2 through the field effect transistor Q of resistance R 3 current limliting input switch effect field circuit 62, make the short circuit of the field effect transistor Q drain-source utmost point, cathode voltage through the elementary TL1 of transformer 4 to the drain-source utmost point and the R11 ground connection of negative pole through field effect transistor Q, thereby finish the pulsatile once loop, make the elementary TL1 of transformer 4 store a certain amount of electric current; When 6 pin of the IC2 of IC chip 61 after this subpulse are output as negative voltage pulse, the grid of field effect transistor Q does not have operating voltage, be that its drain-source utmost point disconnects, end in the loop, stored electric current on transformer 4 elementary TL1 discharges, close secondary TL2 and feedback stage TL3 through the lotus root of magnetic core to transformer 4, the voltage that the secondary TL2 of described transformer 4 senses is through the rectifier cell D3 of lower pressure rectifier filter circuit 7, resistance R 13, one tunnel load that is input to electric blanket behind capacitor C 11 rectifying and wave-filterings, another road is input in the frequency regulating circuit 8 electric current and voltage and adjusts in the circuit 81, make its control light lotus root close the input voltage of 82 IC3, thereby close 1 pin that 82 IC3 comes the IC2 of control IC chip 61 by the light lotus root, 2 pin, so can be used for stablizing the 6 pin voltage pulse output number of times of IC2, with stablizing of voltage after the secondary TL2 rectifying and wave-filtering that reaches transformer 4; The feedback stage TL3 of same described transformer 4 senses that elementary TL1 lotus root is closed voltage after the follow-up starting resistor of IC2 is provided behind the rectifier cell D1 of feedback current rectifying and wave filtering circuit 9, resistance R 2; 3 pin of the IC2 of described IC chip 61 are connected with current foldback circuit 10; this current foldback circuit 10 is made up of resistance R 11, R9 and capacitor C 7, C8, C9; wherein, these current foldback circuit 10 1 ends also are connected with field effect transistor Q, are used to avoid give under overcurrent condition the IC chip that protection is provided.Described feedback stage TL3 obtains voltage that elementary TL1 lotus root closes through the rectifier cell D2 of feedback current rectifying and wave filtering circuit, 7 pin of resistance R 2 back connection IC chip, is used for that the IC2 for IC chip 61 provides follow-up starting resistor when circuit start; Interconnect the common described clamp circuit 3 of forming by rectifier cell D2, capacitor C 10 and resistance R 12 in addition, these clamp circuit 3 same terminations are received the input voltage of current rectifying and wave filtering circuit 2, the elementary TL1 conducting of the other end and transformer 4, it is in order to the high pressure spike circuit at the elementary TL1 of eliminating transformer two ends.
Fig. 3 is that present embodiment is used for application examples schematic diagram on the electric blanket; Wherein this electric blanket is made up of the utility model power supply 100, lead 200, pad 300 and heater element (load) 400, described power supply changeover device 100 1 termination AC power, the heater element 400 that the other end is connected in the pad 300 by lead 200, wherein alternating current converts low-voltage dc power supply through power supply changeover device 100 to by above-mentioned principle and gives heater element 400, thereby makes pad 300 heatings finish the function of electric blanket.Described electric blanket structure can also be the cushion structure of seat, or pet uses the electric heating mat structure, also can make structures such as electric heating shoes, does not therefore add at this and gives restriction.
The design focal point of the utility model is by the driving transformer work dexterously of IC controller, and the current/voltage that offers before the current/voltage of IC controller and transformer after AC power is integrated DC power supply and offer the electric blanket load after the transformer conversion all has the rectification of carrying out, filter, frequency regulating circuit is connected with the IC controller simultaneously, reach the effect in IC controller control transformer periodic duty loop, offer the stable low current voltage of electric blanket load effectively, guarantee the fail safe that people use, reduce rate of breakdown.The IC controller reaches the switching effect field circuit formation that is connected with the IC chip by the IC chip simultaneously, and it reduces the cost of IC controller effectively, thereby reduces the cost of product, is more suitable for the numerous consumer groups.The utility model is simple in structure, and is practical.
In sum, it only is the power supply preferred embodiment of the utility model dc low-voltage electric blanket, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.
Claims (3)
1, a kind of power supply of dc low-voltage electric blanket, it is characterized in that: comprise current rectifying and wave filtering circuit, clamp circuit, transformer, start-up circuit, IC controller, lower pressure rectifier filter circuit, frequency regulating circuit, feedback current rectifying and wave filtering circuit, described IC controller comprises IC chip and the switching effect field circuit that is connected with the IC chip, this switching effect field circuit is connected with transformer, comes voltage output between control IC chip and the transformer by disconnection, the conducting of this switching effect field circuit; Described frequency regulating circuit is adjusted circuit, IC optical coupling, feedback compensation circuit by electric current and voltage and is connected in sequence, being used for the electric blanket load crosses negative back the IC controller is carried out the frequency adjustment, described electric current and voltage is adjusted circuit and is connected with the lower pressure rectifier filter circuit, and the feedback compensation circuit is connected with the IC chip; Described current rectifying and wave filtering circuit connects start-up circuit, and start-up circuit is connected with the IC chip of IC controller, so that IC chip enable voltage to be provided; Described current rectifying and wave filtering circuit also is connected with transformer, clamp circuit, and clamp circuit is connected with transformer simultaneously, wherein can provide transformer direct current input voltage on the one hand, absorbs special-shaped ripple or the peak value ripple that transformer produces by clamp circuit on the other hand; Described transformer output is connected with lower pressure rectifier filter circuit, feedback current rectifying and wave filtering circuit, described lower pressure rectifier filter circuit is used to provide the voltage of electric blanket load, and the feedback current rectifying and wave filtering circuit is connected with the IC chip, provides follow-up starting resistor in order to give the IC chip.
2, according to the power supply of the described dc low-voltage electric blanket of claim 1, it is characterized in that: also comprise a current foldback circuit, this current foldback circuit and IC chip, switching effect field circuit are led and are connected, and avoid giving under overcurrent condition the IC controller that protection is provided.
3, according to the power supply of the described dc low-voltage electric blanket of claim 1, it is characterized in that: described current rectifying and wave filtering circuit be provided with a buffering ac filter circuit between AC power is connected, voltage is to the impact of circuit when extenuating firm starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060110 CN2935692Y (en) | 2006-06-09 | 2006-06-09 | Power source of DC low-voltage electric blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060110 CN2935692Y (en) | 2006-06-09 | 2006-06-09 | Power source of DC low-voltage electric blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935692Y true CN2935692Y (en) | 2007-08-15 |
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ID=38352373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620060110 Expired - Fee Related CN2935692Y (en) | 2006-06-09 | 2006-06-09 | Power source of DC low-voltage electric blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935692Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247073A (en) * | 2011-06-22 | 2011-11-23 | 胡少邦 | Electric blanket and low-voltage constant-temperature control device thereof |
| CN106602897A (en) * | 2016-12-22 | 2017-04-26 | 宁波海斯曼科技发展有限公司 | Anti-interference treadmill control circuit having compensation and automatic protection functions |
| CN110946449A (en) * | 2020-01-19 | 2020-04-03 | 浙江硕奇家纺用品有限公司 | Blanket with silica gel button |
-
2006
- 2006-06-09 CN CN 200620060110 patent/CN2935692Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247073A (en) * | 2011-06-22 | 2011-11-23 | 胡少邦 | Electric blanket and low-voltage constant-temperature control device thereof |
| CN102247073B (en) * | 2011-06-22 | 2013-10-23 | 胡少邦 | Electric blanket and low-voltage constant-temperature control device thereof |
| CN106602897A (en) * | 2016-12-22 | 2017-04-26 | 宁波海斯曼科技发展有限公司 | Anti-interference treadmill control circuit having compensation and automatic protection functions |
| CN106602897B (en) * | 2016-12-22 | 2023-09-29 | 宁波海斯曼健康科技股份有限公司 | Anti-interference treadmill control circuit with compensation and automatic protection functions |
| CN110946449A (en) * | 2020-01-19 | 2020-04-03 | 浙江硕奇家纺用品有限公司 | Blanket with silica gel button |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN YINGSHENG ELECTRONIC PRODUCTS CO., LTD. Free format text: FORMER OWNER: LI HEFA Effective date: 20100108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100108 Address after: Ting Shan village, Houjie Town, Houjie Town, Guangdong, Dongguan province 523000 Patentee after: Dongguan Yingsheng Electrical Products Co., Ltd. Address before: Guangdong province Houjie town of Dongguan City, Shan Ting Management District Dongguan Yingsheng electrical products Co. Ltd, zip code: 523940 Patentee before: Li Hefa |
|
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN WENLEKANG ELECTRIC BLACKET CO., LTD. Free format text: FORMER OWNER: DONGGUAN YINGSHENG ELECTRIC APPLIANCE PRODUCTS CO., LTD. Effective date: 20100629 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 523000 TINGSHAN NEW VILLAGE, HOUJIE TOWN, DONGGUAN CITY, GUANGDONG PROVINCETO: 523000 DONGGUAN WENLEKANG ELECTRONIC BLACKET CO., LTD.,JIANGJUN LING INDUSTRIAL DISTRICT, HOUJIE TOWN ONGGUAN CITY GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100629 Address after: Houjie town of Dongguan City, Guangdong province 523000 general Ling Industrial Zone Dongguan WARMLECOM electric blanket Co. Ltd. Patentee after: Dongguan Warmlecom Electric Blanket Co., Ltd. Address before: 523000, Ting Shan village, Houjie Town, Guangdong, Dongguan Patentee before: Dongguan Yingsheng Electrical Products Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20110609 |