CN207706464U - Electric blanket and its safe heating circuit - Google Patents
Electric blanket and its safe heating circuit Download PDFInfo
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- CN207706464U CN207706464U CN201721777708.3U CN201721777708U CN207706464U CN 207706464 U CN207706464 U CN 207706464U CN 201721777708 U CN201721777708 U CN 201721777708U CN 207706464 U CN207706464 U CN 207706464U
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Abstract
The utility model discloses a kind of electric blanket and its safe heating circuits, advantage is to add two metalfilmresistors for being attached to thermo-sensitive resistor both sides in the control circuit board of safe heating circuit, when electric blanket works normally, metalfilmresistor is not turned on, and is not impacted to circuit；When the actual voltage value of electrothermal wire heating's conducting wire is more than setting operating voltage, namely metalfilmresistor is connected when heating wire partial short-circuit, the temperature of metalfilmresistor increases, and it was more than the switch temperature of thermo-sensitive resistor, so that the resistance value of thermo-sensitive resistor rapidly increases, the electric current on heating wire is caused to reduce rapidly；Namely the electric blanket of heating wire partial short-circuit can heat up very short a period of time when opening, it is worked in metalfilmresistor so that thermo-sensitive resistor is more than its switch temperature, electric blanket is caused no longer to generate heat, remind the user that electric blanket has damaged, it needs to replace in time, occur to prevent leak-stopping electrical phenomena, it is ensured that the life of user of service, property safety.
Description
Technical field
The utility model is related to electric heating thermal insulation equipment, more particularly, to a kind of electric blanket and its safe heating circuit.
Background technology
Electric blanket is common household electrical appliance, is mainly used for improving the temperature in quilt when people's sleep to reach heating mesh
's.Its power consumption is few, temperature is adjustable, it is easy to use, use extensive, have more than 100 years history.
The quality of electric blanket and bad when initial, causes fire or shock episodes, causes casualties, property damage sometimes
It loses.For this purpose, those skilled in the art have carried out related improvement, it is that protection electricity is increased in the control circuit board of electric blanket first
Road, when current flow is more than limit value, the fuse in fuse protection circuit, to cut off the power.But in practical applications,
The fusing of fuse will also result in fire, still not safe enough.It was developed later by investigation of materials, and had produced Temperature protection
Silk, Thermal Cutoffs can fuse when temperature is more than switch temperature, close power protection effect to reach so that electric blanket
Safety increases substantially.
But electric blanket after prolonged use if safeguard it is bad it is also possible that can there is a phenomenon where leaking electricity, this is because
Caused by heating wire partial short-circuit.The partial short-circuit of this heating wire will not make operating current excessive namely current insurance silk
It is more than limit value to be not above current flow, but prolonged super normal duty operation can accelerate the aging of heating wire external insulation layer,
So as to cause the generation of leaky, life threat is caused to user of service, it would be highly desirable to solve.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of safe heating circuits of electric blanket, in heating wire office
Also leaky can be prevented when portion's short circuit, it is ensured that the life of user of service, property safety.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of safety of electric blanket is for thermoelectricity
Road, including heating wire and its control circuit board；The heating wire is mainly made of heating-wire and perception conducting wire；Control circuit board
It is equipped with Thermal Cutoffs, the Thermal Cutoffs is arranged at plant-grid connection；Two gold are additionally provided in the control circuit board
Belong to oxidation film resistance, the metal oxidation resistance is attached to Thermal Cutoffs both sides respectively；The metal oxidation resistance is being sent out
It is connected when thermal wire is with perception conducting wire short circuit, the operating temperature of the metal oxidation resistance is more than the fusing temperature of Thermal Cutoffs
Degree.
Preferably, the control circuit board is additionally provided with the control chip and silicon-controlled for controlling heating-wire work；
The metal oxidation resistance is connected in silicon-controlled short circuit.In silicon-controlled short circuit, metal oxidation resistance can also melt in time
Disconnected Thermal Cutoffs, it is ensured that the life of user of service, property safety.
Preferably, the anode of heating-wire and the connection circuit of Thermal Cutoffs output end are equipped with rectifier diode I；
The cathode of heating-wire is connected with silicon-controlled anode, and silicon-controlled cathode is connected with power cathode, silicon-controlled control
Pole is connected with control chip；One end after two metal oxidation resistance parallel connections is electrically connected with the output end of Thermal Cutoffs,
It is provided with reverse bias two on the connection circuit of the anode of the other end and heating-wire after two metal oxidation resistance parallel connections
Pole pipe I；Perception conducting wire anode is connected by temperature detection circuit with control chip, and the company of conducting wire anode and power cathode is perceived
Circuit is connect equipped with reversed biased diodes II, the connection circuit for perceiving conducting wire negative terminal and power cathode is equipped with reversed inclined
Set diode I I；The reversed biased diodes I is connected when heating-wire is with the short circuit of perception conducting wire or silicon-controlled short circuit.It is logical
Excess temperature circuit for detecting and the control chip that is connected of perception conducting wire, can intelligently adjust the temperature of electric blanket, allow user of service
It is in comfortable temperature environment in one's sleep.
As an improvement, further including rectifier diode II, rectifier diode II is arranged in parallel with rectifier diode I.In rectification
It can also continue to work normally when diode I damages, improve the service life of electric blanket.
Preferably, the anode of heating-wire and the connection circuit of Thermal Cutoffs output end are equipped with rectifier diode
III, the cathode of heating-wire are connected with silicon-controlled anode, and silicon-controlled cathode is connected with power cathode, silicon-controlled
Control pole is connected with control chip；The output end of one end and Thermal Cutoffs after two metal oxidation resistance parallel connections is electrically connected
It connects, the connection circuit of the cathode of the other end and heating-wire after two metal oxidation resistance parallel connections is equipped with reverse bias two
Pole pipe IV；The connection circuit for perceiving conducting wire and power cathode is equipped with reversed biased diodes VI；The reversed biased diodes
IV is connected in heating-wire and heating wire perception conducting wire short circuit or silicon-controlled short circuit.
As an improvement, being additionally provided with reversed biased diodes V, reversed biased diodes V is in parallel with reversed biased diodes IV
Setting.It can also continue to work normally when reversed biased diodes IV is damaged, improve the service life of electric blanket.
Preferably, it is respectively the first heating wire and the second heating wire, the first electrothermal wire heating that the heating wire, which has two,
The anode of conducting wire is equipped with rectifier diode IV with the connection circuit of Thermal Cutoffs output end, second electrothermal wire heating's conducting wire
The connection circuit of anode and Thermal Cutoffs output end is equipped with rectifier diode V；The cathode of first electrothermal wire heating's conducting wire with
First silicon-controlled anode is connected, and the cathode of second electrothermal wire heating's conducting wire is connected with the second silicon-controlled anode, and first
The silicon-controlled cathode of silicon-controlled cathode and second is connected with power cathode respectively, and the first silicon-controlled control pole and second can
The control pole for controlling silicon is connected with control chip respectively；One end and Thermal Cutoffs after two metal oxidation resistance parallel connections
Output end is electrically connected, the connection of the cathode of the other end and first electrothermal wire heating's conducting wire after two metal oxidation resistance parallel connections
Circuit is equipped with reversed biased diodes VII, the other end and the second heating wire after two metal oxidation resistance parallel connections
The connection circuit of the cathode of heating-wire is equipped with reversed biased diodes VIII；First heating wire perceives conducting wire and the second electric heating
Silk perception conducting wire is provided with reversed biased diodes IX on the connection circuit of power cathode again after joining end to end；Reverse bias two
Pole pipe VII is connected in first electrothermal wire heating's conducting wire and the perception conducting wire short circuit of the first heating wire or silicon-controlled short circuit；It is reversed inclined
Diode VIII is set to be connected in second electrothermal wire heating's conducting wire and the perception conducting wire short circuit of the second heating wire or silicon-controlled short circuit.
Double use, is separately controlled.
Preferably, the rectifier diode IV and rectifier diode V is arranged in parallel.In rectifier diode IV or rectification two
It can also continue to work normally when pole pipe V damages, improve the service life of electric blanket.
Preferably, the Thermal Cutoffs is 102 degree of Thermal Cutoffs, maximum temperature is 102 degree, in electrothermic wire insulation
In the normal working temperature of protective layer, it is more than this running temperature, the reduced service life of electrothermic wire insulation protective layer can be caused.
Compared with prior art, the advantages of safety heating circuit, is that two are added in control circuit board is attached to temperature
The metal oxidation resistance of fuse both sides, when electric blanket works normally, metal oxidation resistance is not turned on, and is not made to circuit
At influence；The actual voltage value that conducting wire is perceived in heating wire is more than when setting operating voltage namely heating wire partial short-circuit, metal
Film resistance conducting is aoxidized, the temperature of metal oxidation resistance increases, and more than the maximum temperature of excess temperature fuse so that temperature
Blown fuse causes heating wire cut-off to protect；Namely the electric blanket of heating wire partial short-circuit open when can heat up it is very short by one
The section time works in metal oxidation resistance and so that Thermal Cutoffs is more than its switch temperature, electric blanket is caused no longer to generate heat, from
And remind user that electric blanket has damaged, it needs to replace in time, occur to prevent leak-stopping electrical phenomena, it is ensured that the life of user of service,
Property safety.
Another technical problem to be solved in the utility model is to provide a kind of electric blanket, in its heating wire partial short-circuit
Also leaky can be prevented, it is ensured that the life of user of service, property safety.
The technical solution of this electric blanket is：A kind of electric blanket includes any of the above-described kind of safe heating circuit.
The advantages of this electric blanket, is, two metal for being attached to Thermal Cutoffs both sides oxidations are added in control circuit board
Film resistance, when electric blanket works normally, metal oxidation resistance is not turned on, and is not impacted to circuit；It is perceived in heating wire
The actual voltage value of conducting wire is more than when setting operating voltage namely metal oxidation resistance is connected when heating wire partial short-circuit, gold
The temperature for belonging to oxidation film resistance increases, and more than the maximum temperature of Thermal Cutoffs so that Thermal Cutoffs fuses, and leads to electric heating
Silk power-off protection；Namely the electric blanket of heating wire partial short-circuit can heat up very short a period of time when opening, in metal oxide film
Resistance performance so that Thermal Cutoffs is more than its switch temperature, causes electric blanket no longer to generate heat, reminds the user that electric blanket
It through damage, needs to replace in time, occur to prevent leak-stopping electrical phenomena, it is ensured that the life of user of service, property safety.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model control circuit board.
Fig. 2 is the circuit design drawing of embodiment 1.
Fig. 3 is the circuit design drawing of embodiment 2.
Fig. 4 is the circuit design drawing of embodiment 3.
Specific implementation mode
The present utility model application can cause Thermal Cutoffs to fuse so as to flow through heating wire according to heating wire partial short-circuit
Power-failure protection circuit theory, devise a kind of safe heating circuit of electric blanket.The safe heating circuit of electric blanket
Including heating wire and its control circuit board 1, heating wire is mainly made of heating-wire and perception conducting wire；Control circuit board 1 such as Fig. 1
It is shown, it is provided with Thermal Cutoffs 3 above, Thermal Cutoffs 3 is arranged at plant-grid connection, and two are additionally provided in control circuit board 1
Root is attached to the metal film oxide capacitance 4 of 3 both sides of Thermal Cutoffs respectively, and metal film oxide capacitance 4 perceives conducting wire in heating wire
It is connected when actual voltage value is more than setting operating voltage namely when electrothermal wire heating's conducting wire is with perception conducting wire partial short-circuit, wherein
The operating temperature of metal film oxide capacitance 4 is more than the maximum temperature (also referred to as fusing-off temperature) of Thermal Cutoffs 3.Here, temperature is protected
Dangerous silk 3 use 102 degree Thermal Cutoffs (similarly hereinafter), maximum temperature be 102 degree, more than 102 degree after can be blown；Metal film oxygen
Change resistance 4 and compare high temperature resistant, operating temperature is generally 150 degree~180 degree, is more than the maximum temperature for capableing of Thermal Cutoffs 3.
In existing electric blanket, control circuit board 1 is equipped with the control chip 2 for controlling heating-wire work and can
Silicon is controlled, above-mentioned metal oxidation resistance 4 can also be connected in silicon-controlled short circuit.Here, control chip 2 uses model
The microcontroller (similarly hereinafter) of HT66F003, the model microcontroller the operation is stable, compares suitable for electric blanket.
The circuit design drawing for the electric blanket for being equipped with control chip with regard to 3 kinds below further retouches the utility model work in detail
It states.
Embodiment 1 is temperature detecting formula electric blanket, and the circuit design of safe heating circuit is as shown in Fig. 2, heating wire is sent out
Thermal wire a5 is connected on heating circuit, and heating wire perceives on conducting wire a9 connection temperature detection circuits.Wherein, electrothermal wire heating leads
The anode of line a5 is equipped with rectifier diode Ia61 with the connection circuit of Thermal Cutoffs a3 output ends；Electrothermal wire heating's conducting wire a5
Cathode be connected with the anode of silicon-controlled Ia8, the cathode of silicon-controlled Ia8 is connected with power cathode, the control of silicon-controlled Ia8
Pole is connected with control chip a2；The output end electricity of one end and Thermal Cutoffs a3 after two metal film oxide capacitance a4 parallel connections
Connection, the other end after two metal film oxide capacitance a4 parallel connections are set on the connection circuit of the anode of electrothermal wire heating's conducting wire a5
It is equipped with reversed biased diodes Ia7；The connection circuit for perceiving conducting wire a9 anodes and power cathode is equipped with reversed biased diodes
IIa101, the connection circuit for perceiving conducting wire a9 negative terminals and power cathode are equipped with reversed biased diodes IIIa102；Reverse bias
Diode Ia7 is connected in electrothermal wire heating's conducting wire a5 and heating wire perception conducting wire a9 short circuits or silicon-controlled a8 short circuits.Other portions
Dividing component not constituted on operation principle influences, and circuit connecting relation is not detailed herein, and for details, reference can be made to Fig. 2.This
In, it is silicon-controlled using SCR (also referred to as thyristor or single-phase silicon-controlled, similarly hereinafter).
As an improvement, further including rectifier diode IIa62, rectifier diode IIa62 is in parallel with rectifier diode Ia61 to be set
It sets.
Embodiment 2 is common electric blanket, and the circuit design of safe heating circuit is as shown in figure 3, heating-wire b5
Anode and the connection circuits of Thermal Cutoffs b3 output ends are equipped with rectifier diode IIIb6, the cathode of heating-wire b5 with can
The anode of control silicon b8 is connected, and the cathode of silicon-controlled b8 is connected with power cathode, control pole and the control chip of silicon-controlled b8
B2 is connected；One end after two metal oxidation resistance b4 parallel connections is electrically connected with the output end of Thermal Cutoffs b3, two gold
The connection circuit for belonging to the other end and the cathode of heating-wire b5 after oxidation film resistance b4 parallel connections is equipped with reversed biased diodes
IVb71；The connection circuit for perceiving conducting wire b9 and power cathode is equipped with reversed biased diodes VIb10；Reversed biased diodes
IVb71 is connected in heating-wire b5 and heating wire perception conducting wire b9 short circuits or silicon-controlled b8 short circuits.
As an improvement, it is additionally provided with reversed biased diodes Vb72, reversed biased diodes Vb72 and reversed biased diodes
IVb71 is arranged in parallel.Other parts component, which is not constituted operation principle, to be influenced, and circuit connecting relation is no longer retouched in detail here
It states, for details, reference can be made to Fig. 3.
Embodiment 3 is the double electric blanket being separately controlled, and the circuit design of safe heating circuit is as shown in figure 4, electric heating
It is respectively the first heating wire and the second heating wire, the anode and Thermal Cutoffs of first electrothermal wire heating's conducting wire c51 that silk, which has two,
The connection circuit of c3 output ends is equipped with rectifier diode IVc61, the anode and Temperature protection of second electrothermal wire heating's conducting wire c52
The connection circuit of silk c3 output ends is equipped with rectifier diode Vc62；The cathode and first of first electrothermal wire heating's conducting wire c51 can
The anode of control silicon c81 is connected, and the cathode of second electrothermal wire heating's conducting wire c52 is connected with the anode of the second silicon-controlled c82, the
The cathode of the cathode of one silicon-controlled c81 and the second silicon-controlled c82 are connected with power cathode respectively, the control of the first silicon-controlled c81
The control pole of pole processed and the second silicon-controlled c82 are connected with control chip c2 respectively；After two metal oxidation resistance c4 parallel connections
One end be electrically connected with the output end of Thermal Cutoffs c3, the other end after two metal oxidation resistance c4 parallel connections and the first electricity
The connection circuit of the cathode of heated filament heating-wire c51 is equipped with reversed biased diodes VIIc71, two metal oxidation resistances
The connection circuit of the cathode of the other end and second electrothermal wire heating's conducting wire c52 after c4 parallel connections is equipped with reversed biased diodes
VIIIc72；First heating wire perceive conducting wire c91 and the second heating wire perceive after conducting wire c92 joins end to end again with power cathode
It is provided with reversed biased diodes IXc10 on connection circuit；Reversed biased diodes VIIc71 is in first electrothermal wire heating's conducting wire
C51 and the first heating wire are connected when perceiving conducting wire c91 short circuits or silicon-controlled c81 short circuits；Reversed biased diodes VIIIc72 exists
Second electrothermal wire heating's conducting wire c52 and the second heating wire are connected when perceiving conducting wire c92 short circuits or silicon-controlled c82 short circuits.
As an improvement, rectifier diode IVc61 is arranged in parallel with rectifier diode Vc62.Other parts component is not to work
Make principle and constitute influence, circuit connecting relation is also not described in detail, and for details, reference can be made to Fig. 4.
Claims (10)
1. a kind of safe heating circuit of electric blanket, including heating wire and its control circuit board (1)；The heating wire is mainly by sending out
Thermal wire and perception conducting wire are constituted；Control circuit board (1) is equipped with Thermal Cutoffs (3), and Thermal Cutoffs (3) setting exists
At plant-grid connection；It is characterized in that, being additionally provided with two metal oxidation resistances (4), the metal on the control circuit board (1)
Oxidation film resistance (4) is attached to Thermal Cutoffs (3) both sides respectively；The metal oxidation resistance (4) is in heating-wire and perception
It is connected when conducting wire short circuit, the operating temperature of the metal oxidation resistance (4) is more than the fusing-off temperature of Thermal Cutoffs (3).
2. the safe heating circuit of electric blanket according to claim 1, it is characterised in that：The control circuit board (1) is also
Equipped with the control chip and silicon-controlled for controlling heating-wire work；The metal oxidation resistance (4) is in silicon-controlled short circuit
When be connected.
3. the safe heating circuit of electric blanket according to claim 2, it is characterised in that：Heating-wire (a5) anode with
The connection circuit of Thermal Cutoffs (a3) output end is equipped with rectifier diode I (a61)；The cathode of heating-wire (a5) with it is controllable
The anode of silicon (a8) is connected, and the cathode of silicon-controlled (a8) is connected with power cathode, the control pole of silicon-controlled (a8) and control
Chip (a2) is connected；One end and the output end of Thermal Cutoffs (a3) after two metal oxidation resistances (a4) are in parallel are electrically connected
It connects, the other end after two metal oxidation resistances (a4) are in parallel is provided with on the connection circuit of the anode of heating-wire (a5)
Reversed biased diodes I (a7)；Perception conducting wire (a9) anode is connected by temperature detection circuit with control chip (a2), is perceived
The connection circuit of conducting wire (a9) anode and power cathode is equipped with reversed biased diodes II (a101), the perception conducting wire (a9)
The connection circuit of negative terminal and power cathode is equipped with reversed biased diodes III (a102)；The reversed biased diodes I (a7)
It is connected when heating-wire (a5) is with perception conducting wire (a9) short circuit or silicon-controlled (a8) short-circuit.
4. the safe heating circuit of electric blanket according to claim 3, it is characterised in that：Further include rectifier diode II
(a62), rectifier diode II (a62) and rectifier diode I (a61) is arranged in parallel.
5. the safe heating circuit of electric blanket according to claim 2, it is characterised in that：Heating-wire (b5) anode with
The connection circuit of Thermal Cutoffs (b3) output end be equipped with rectifier diode III (b6), the cathode of heating-wire (b5) with can
The anode of control silicon (b8) is connected, and the cathode of silicon-controlled (b8) is connected with power cathode, the control pole of silicon-controlled (b8) and control
Coremaking piece (b2) is connected；The output end electricity of one end and Thermal Cutoffs (b3) after two metal oxidation resistances (b4) are in parallel
The connection circuit of connection, the other end and the cathode of heating-wire (b5) after two metal oxidation resistances (b4) are in parallel is equipped with
Reversed biased diodes IV (b71)；It perceives conducting wire (b9) and the connection circuit of power cathode is equipped with reversed biased diodes VI
(b10)；The reversed biased diodes IV (b71) is short-circuit in heating-wire (b5) and heating wire perception conducting wire (b9), or controllable
Silicon (b8) is connected when short-circuit.
6. the safe heating circuit of electric blanket according to claim 5, it is characterised in that：It is additionally provided with reversed biased diodes
V (b72), reversed biased diodes V (b72) and reversed biased diodes IV (b71) are arranged in parallel.
7. the safe heating circuit of electric blanket according to claim 2, it is characterised in that：The heating wire has two difference
For the first heating wire and the second heating wire, anode and Thermal Cutoffs (c3) output end of first electrothermal wire heating's conducting wire (c51)
Connection circuit be equipped with rectifier diode IV (c61), the anode and Thermal Cutoffs of second electrothermal wire heating's conducting wire (c52)
(c3) the connection circuit of output end is equipped with rectifier diode V (c62)；The cathode of first electrothermal wire heating's conducting wire (c51) and
The anode of one silicon-controlled (c81) is connected, the sun of the cathode of second electrothermal wire heating's conducting wire (c52) and second silicon-controlled (c82)
Pole is connected, and the cathode of the cathode of first silicon-controlled (c81) and second silicon-controlled (c82) are connected with power cathode respectively, the
The control pole of one silicon-controlled (c81) and the control pole of second silicon-controlled (c82) are connected with control chip (c2) respectively；Two gold
Belong to one end after oxidation film resistance (c4) parallel connection to be electrically connected with the output end of Thermal Cutoffs (c3), two metal oxidation resistances
(c4) the connection circuit of the cathode of the other end after parallel connection and first electrothermal wire heating's conducting wire (c51) is equipped with two pole of reverse bias
Pipe VII (c71), the other end and second electrothermal wire heating's conducting wire (c52) after two metal oxidation resistances (c4) are in parallel
Cathode connection circuit be equipped with reversed biased diodes VIII (c72)；First heating wire perceives conducting wire (c91) and the second electricity
Heated filament perception conducting wire (c92) is provided with reversed biased diodes IX on the connection circuit of power cathode again after joining end to end
(c10)；Reversed biased diodes VII (c71) perceives conducting wire in first electrothermal wire heating's conducting wire (c51) and the first heating wire
(c91) it is connected when short-circuit or silicon-controlled (c81) is short-circuit；Reversed biased diodes VIII (c72) is in second electrothermal wire heating's conducting wire
(c52) with the second heating wire perception conducting wire (c92) short circuit or silicon-controlled (c82) short-circuit it is connected when.
8. the safe heating circuit of electric blanket according to claim 7, it is characterised in that：The rectifier diode IV
(c61) it is arranged in parallel with rectifier diode V (c62).
9. according to the safe heating circuit of claim 1~8 any one of them electric blanket, it is characterised in that：The temperature is protected
Dangerous silk is 102 degree of Thermal Cutoffs.
10. a kind of electric blanket, it is characterised in that have such as the safe heating circuit of claim 1~9 any one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721777708.3U CN207706464U (en) | 2017-12-19 | 2017-12-19 | Electric blanket and its safe heating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721777708.3U CN207706464U (en) | 2017-12-19 | 2017-12-19 | Electric blanket and its safe heating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207706464U true CN207706464U (en) | 2018-08-07 |
Family
ID=63027029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721777708.3U Active CN207706464U (en) | 2017-12-19 | 2017-12-19 | Electric blanket and its safe heating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207706464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949077A (en) * | 2017-12-19 | 2018-04-20 | 宁波晟世阳光电子科技有限公司 | Electric blanket and its safe heating circuit |
-
2017
- 2017-12-19 CN CN201721777708.3U patent/CN207706464U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949077A (en) * | 2017-12-19 | 2018-04-20 | 宁波晟世阳光电子科技有限公司 | Electric blanket and its safe heating circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181010 Address after: 315177 Ningbo County, Zhejiang province Haishu District Yin County Avenue, 227 ancient forest (one photo multiple address) Patentee after: NINGBO OWFINE TEXTILE ARTICLE DESIGN Co.,Ltd. Address before: 315176 Zhejiang Ningbo Haishu District Gulin Town, water port village Patentee before: NINGBO SHENGSHI YANGGUANG ELECTRONIC TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder |
Address after: 315177 Ningbo County, Zhejiang province Haishu District Yin County Avenue, 277 ancient forest (one photo multiple address) Patentee after: NINGBO OWFINE TEXTILE ARTICLE DESIGN Co.,Ltd. Address before: 315177 Ningbo County, Zhejiang province Haishu District Yin County Avenue, 227 ancient forest (one photo multiple address) Patentee before: NINGBO OWFINE TEXTILE ARTICLE DESIGN Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221207 Address after: No. 10, Exi Road, Sanshan Street, Sanshan Economic Development Zone, Wuhu City, Anhui Province 241000 Patentee after: Wuhu dongxifang Electronic Technology Co.,Ltd. Address before: 315177 Ningbo County, Zhejiang province Haishu District Yin County Avenue, 277 ancient forest (one photo multiple address) Patentee before: NINGBO OWFINE TEXTILE ARTICLE DESIGN Co.,Ltd. |
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| TR01 | Transfer of patent right |