CN2701212Y - Heating protector of electric heating bag - Google Patents
Heating protector of electric heating bag Download PDFInfo
- Publication number
- CN2701212Y CN2701212Y CNU2004200448452U CN200420044845U CN2701212Y CN 2701212 Y CN2701212 Y CN 2701212Y CN U2004200448452 U CNU2004200448452 U CN U2004200448452U CN 200420044845 U CN200420044845 U CN 200420044845U CN 2701212 Y CN2701212 Y CN 2701212Y
- Authority
- CN
- China
- Prior art keywords
- bag
- electric heating
- electric warming
- warming bag
- heating bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Control Of Resistance Heating (AREA)
Abstract
The utility model relates to a heating protector of an electric heating bag, comprising an electric heating bag. The soft bag body of the electric heating bag is filled with conducting liquid and is provided with power supply positive and negative poles. The power supply positive pole and the negative pole are respectively arranged at the upper position and the lower position in the soft bag body. The electric heating bag is arranged in a protecting case. The protecting case is provided with an overload and distension-proof protector which comprises a linkage unit connected with the upper cover of the case and an electric heating bag control circuit board. One end of the linkage unit is connected with the upper cover of the case and the other end is connected with the control circuit board by the switch of the cover. The utility model has simple and reasonable structure and is practical, safe and reliable. Because the positive pole and the negative pole of the power supply are respectively arranged at the upper position and the lower position in the soft bag body, the heating of the whole electric heating bag is uniform, which eliminates the past situation of short service life of an electric heating bag caused by nonuniform temperature. The electric heating bag is arranged in the protecting case for energizing and heating, which limits the expanded volume of the electric heating bag by heating, then overexpansion of the electric heating bag by heating is avoided and the danger of accidents is eliminated.
Description
Technical field
The utility model relates to a kind of electric warming bag, particularly a kind of electric warming bag heating protective device.
Background technology
Have all kinds of electric warming bags in the market, for people provide a kind of heating mode comparatively easily, as shown in accompanying drawing 1, its mainly by: water guide mouth 1, software bag 2, socket 3, indicator light 4, conductive liquid 5, positive and negative electrode and temperature limiter 6 are formed.But there is more unsafe factor in the electric warming bag of this structure, and it mainly shows as: 1) in case temperature limiter 6 is out of control or damage, in the time of energized, the heating that conductive liquid 5 will not stop, 2 bags of bodies of software bag do not stop to expand, and break or explosion takes place until generation, cause the accident; 2) if general idea or seek easy to usely relatively when user or child use, heating in the electric warming bag charging so very easily causes the user to be scalded or electric shock accidents takes place.Because implicit these the bigger potential safety hazards of electric warming bag are so make us not too satisfied.
Summary of the invention
The purpose of this utility model is to provide accurate, safe and reliable, easy to use, the easy-operating electric warming bag heating of a kind of temperature control protective device, to overcome weak point of the prior art.
A kind of electric warming bag heating protective device by this purpose design comprises electric warming bag, in the soft bag of electric warming bag conductive liquid is housed, and is provided with power positive cathode in the soft bag, and its architectural feature is that positive source and negative pole are separately positioned on the upper-lower position in the soft bag.
Above-mentioned electric warming bag is arranged in the protection box.The protection box is provided with the anti-protective device that expands of overload, and this device comprises the STATEMENT OF FEDERALLY SPONSORED of joining with the box body loam cake, and an electric warming bag control circuit board.STATEMENT OF FEDERALLY SPONSORED one end joins with the loam cake of protection box, and the other end joins by lid switch and control circuit board.
The utility model is simple and reasonable, and is practical safe and reliable.Owing to the upper-lower position that power positive cathode is separately positioned on conductive liquid, the heating of whole like this electric warming bag is even, and eliminating in the past, the temperature inequality causes the situation of electric warming bag shortening in useful life to take place; Electric warming bag is arranged in the overload protection box energising heating, and the volume that heating is expanded to electric warming bag limits, and avoids the electric warming bag excessive expansion of being heated, to eliminate accident hazard.
Description of drawings
Fig. 1 is existing electric warming bag sectional structure schematic diagram.
Fig. 2 is the utility model one embodiment sectional structure schematic diagram.
Fig. 3 is the control circuit schematic diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 2, this electric warming bag heating protective device is equipped with conductive liquid 17 in the soft bag 13 of electric warming bag, and positive source 12 and negative pole 20 are separately positioned on the upper-lower position of soft bag 13.Whole electric warming bag is arranged in the protection box 21.One end attaching plug 15 of power line is received the supply socket 14 of electric warming bag, and the control circuit board 19 in its other end and the protection box 11 joins; Control circuit board 19 joins by attaching plug 23 and external power supply.Electric warming bag adds thermal expansion, and when protecting box 11 loam cakes by jack-up, STATEMENT OF FEDERALLY SPONSORED 18 is also by jack-up; When reaching the predetermined value of protection box 11 loam cakes rise, STATEMENT OF FEDERALLY SPONSORED 18 is by covering the out-put supply that switch 22 disconnects control circuit boards 19, and at this moment, electric warming bag no longer continues to add thermal expansion.Among the figure, 11 is the water guide mouth, and 16 is relay indicating light.
Referring to Fig. 3, A and B are respectively the power input of overload protection box, and C and D are the power output end of protection box, the just power input of electric warming bag.Control circuit one termination input power supply, the other end meets thermistor RT1 successively, capacitor C 1, bridge rectifier D1-D4, voltage stabilizing didoe ZD1, relay K and switch SW, fuse F1, wherein resistance R 1 is in parallel with capacitor C I, diode D6 and relay K parallel connection, capacitor C 2 is in parallel with voltage stabilizing didoe ZD1.After the relay K conducting, the K1 closure; Relay K thermistor RT1 and fuse F can prevent to occur in the circuit generation of overcurrent or overload situations.When the electric warming bag expanded by heating, when its volume reached predetermined value, STATEMENT OF FEDERALLY SPONSORED was by covering the out-put supply that switch disconnects control circuit board, and electric warming bag is among the protection.
Claims (5)
1. electric warming bag heating protective device; comprise electric warming bag; in the soft bag (13) of electric warming bag conductive liquid (17) is housed, is provided with power positive cathode in the soft bag, it is characterized in that described positive source (12) and negative pole (20) are separately positioned on the upper-lower position in the soft bag.
2. electric warming bag heating protective device according to claim 1 is characterized in that described electric warming bag is arranged in the protection box (21).
3. electric warming bag heating protective device according to claim 2 is characterized in that described protection box is provided with the anti-protective device that expands of overload, and this device comprises the STATEMENT OF FEDERALLY SPONSORED (18) of joining with the box body loam cake, and an electric warming bag control circuit board (19).
4. electric warming bag heating protective device according to claim 3 is characterized in that the loam cake of described STATEMENT OF FEDERALLY SPONSORED one end and protection box (21) joins, and the other end joins by lid switch (22) and control circuit board (19).
5. electric warming bag heating protective device according to claim 3 is characterized in that described control circuit one termination input power supply, and the other end meets thermistor RT1 successively; capacitor C 1; bridge rectifier D1-D4, diode ZD1, relay K and switch SW, wherein diode D6 and relay K parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200448452U CN2701212Y (en) | 2004-04-15 | 2004-04-15 | Heating protector of electric heating bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200448452U CN2701212Y (en) | 2004-04-15 | 2004-04-15 | Heating protector of electric heating bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2701212Y true CN2701212Y (en) | 2005-05-18 |
Family
ID=34775376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200448452U Expired - Fee Related CN2701212Y (en) | 2004-04-15 | 2004-04-15 | Heating protector of electric heating bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2701212Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008148284A1 (en) * | 2007-06-04 | 2008-12-11 | Shengquan Liang | Portable warm bag |
-
2004
- 2004-04-15 CN CNU2004200448452U patent/CN2701212Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008148284A1 (en) * | 2007-06-04 | 2008-12-11 | Shengquan Liang | Portable warm bag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |