CN201001200Y - External type safety power supply holder for electric heating bag - Google Patents
External type safety power supply holder for electric heating bag Download PDFInfo
- Publication number
- CN201001200Y CN201001200Y CNU2007200341444U CN200720034144U CN201001200Y CN 201001200 Y CN201001200 Y CN 201001200Y CN U2007200341444 U CNU2007200341444 U CN U2007200341444U CN 200720034144 U CN200720034144 U CN 200720034144U CN 201001200 Y CN201001200 Y CN 201001200Y
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- China
- Prior art keywords
- power supply
- electric warming
- support body
- warming bag
- leg
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Abstract
The utility model relates to an external safe power supply frame used for an electricity warm bag, which belongs to the electric heating appliance application technology field. The utility model comprises a frame body, an electric plug arranged at the front end of the frame body, an automatic protection device arranged at the other end of the frame body, and a power supply line used to be electrically connected with the electric plug and the automatic protection device, wherein the automatic protection device comprises a safety switch, support legs, and springs, the safety switch is arranged at the rear end of the frame body, the support legs are hung at the rear end of the frame body, the top surfaces of the support legs are corresponding to the switch contact of the safety switch, and the two ends of the springs are respectively supported on the safety switch and the support legs. The utility model has the advantages that the component quantity is small, therefore the processing and the assembly are simple, the size is small, therefore being convenient for carrying or collection and storage; the springs are arranged reasonably, so when the pressure in the electricity warm bag is too large, thus generating air expansion, and when the electricity warm bag is not charged with fluid or has a fluid leakage, the power supply can be automatically disconnected and the heating is stopped, and in addition, even if the heating element of the electricity warm bag is not provided with an anti-dry heating function, the power supply can also be disconnected to prevent dry heating, therefore the utility model can have multiple protections.
Description
Technical field
The utility model relates to a kind of electric warming bag with external safe power supply frame, is used for electric warming bag charging and safeguard protection are belonged to the electrical heated appliance applied technical field.
Background technology
People mainly show as the initiation water expansion in case the bag internal pressure is excessive, temperature is too high to the maximum worry of electric warming bag, cause explosion, bring to the user and scald and even cause other hidden danger; In case when the interior liquid storage amount of bag reduces (being caused by seepage) and imposes charging, can undermine electric warming bag and cause the situation such as fire to take place, constitute a threat to for user's lives and properties.Given this, directly the mode of electric warming bag charging heating is abandoned by people with attaching plug.
The being seen electric warming bag of existing market is furnished with a safe power supply frame usually, is used for remedying above-mentioned shortcoming.For example Chinese patent CN2674341Y and the CN2777768Y electric warming bag power supply stand, electric warming bag that disclose the band anti-dry burning device respectively be with safe dual fail-safe charger, the anti-dry burning device that the former recommends by the anti-dry seesaw, move the pole spacing sheet and spring is formed.Fig. 2 by this patent shows, when when the electric warming bag operate as normal, expiring liquid, place under the power supply stand, by electric warming bag the anti-dry seesaw is depressed, made pole spacing sheet displacement, allow space between engaging lever and safety switch, when the plug on the moving bar inserts electric warming bag, moving bar contacts with safety switch, power connection, and electric warming bag is powered heating; And when the electric warming bag irregular working not when fluid injection or a large amount of seepage, because the anti-dry seesaw is under the effect of spring and can't be depressed by electric warming bag, moving pole spacing sheet remains between moving bar and the safety switch, promptly be in contactless state and can't energized, heating so electric warming bag can not be powered.The scheme that the latter recommends is roughly the same contact or disconnect principle with the former, but the latter's structure than the former come simplification.Undeniable, above-mentioned two kinds of technical schemes all can play corresponding safeguard protection effect, but all have shortcoming.For example the component number of last patent is more, must reach and bar is contacted or the effect of disconnection with safety switch by being located at anti-dry seesaw on the base and that link by spring and organic cooperation between the moving bar, obvious its structure can't show terseness, not only cause the trouble on the process and assemble, and carry, collect because of bulky being not easy to, especially tediously long anti-dry seesaw and moving bar cause easily and fracture and non-function; Still there is the blind area in fail safe, for example when the anti-dry seesaw fracture or move that bar and anti-dry seesaw act on mutually one bring out now and fracture, perhaps fractureing all appears in anti-dry seesaw, moving bar, so because still can be to the electric warming bag heating of charging, cause safety switch to become ornaments and effect out of hand, implicit unsafe factor, for example uncontrollable for bag situation that rises.Back one patent and for example, in a single day fractureing appears in the depression bar of the moving bar base portion of hub setting on pedestal, can show the unsafe factor of last patent so equally, should get the phase and remedies so above-mentioned two patented technology schemes are lost the problem of abundant fail safe.
Summary of the invention
Task of the present utility model be to provide a kind of component number few and be beneficial to making, assemble and be able to littleization volume and be easy to carry and collect, can be fully to the bag that rises, leakage carry out the fail safe protection and the electric warming bag of avoiding causing hidden danger with external safe power supply frame.
Task of the present utility model is finished like this; a kind of electric warming bag external safe power supply frame; it comprises a support body; one is used for and pre-inserting the mutually and plug that be installed in described support body front end of socket on electric warming bag; one is installed in the automatic safety device that can cut off the electricity supply of the described support body other end when electric warming bag rises by bag or leakage; and be used for and plug; the power line that automatic safety device is electrically connected; described automatic safety device comprises safety switch; leg; spring; safety switch is installed in the rear end of described support body; leg is hung on the rear end of support body; top end face is corresponding with the switch contact of safety switch, and the two ends of spring are bearing in respectively on safety switch and the leg.
Support body described in the utility model constitutes cavity; the leg of described plug is stretched in the leg chamber of described cavity and is electrically connected with power line; and the safety switch integral body of described automatic safety device must be contained in the switch cavity of described cavity, is electrically connected with power line.
The top expansion of leg described in the utility model is provided with a spring base, and the lower end of described spring is bearing on the spring base, and the upper end is bearing on the bottom face of safety switch.
The narrow leg head that constitutes in the top of leg described in the utility model, the leg head is corresponding with switch contact with contracting.
Offer at least one indicator lamp hole on the support body described in the utility model, indicator light is installed in the indicator lamp hole, indicator light is electrically connected with power line.
Indicator light described in the utility model is a light-emitting diode.
The shape of support body described in the utility model is 7 fonts of 90 ° of left avertences substantially.
Indicator lamp hole described in the utility model is opened on the roof or side walls of support body.
Indicator lamp hole described in the utility model is opened in roof front end or the middle part or the rear end of support body.
Indicator lamp hole described in the utility model is opened in side walls front end or the middle part or the rear end of support body.
The utility model is owing to adopted above-mentioned design, do not need to resemble and remove to act on safety switch by the cooperation between tediously long anti-dry seesaw, the moving bar the prior art, so component number is reduced and makes the simple and reduced volume of process and assemble and be easy to carry or receive whole keeping; Spring is provided with rationally; when the excessive generation gas of the pressure in the electric warming bag rises; support body can change the position and deenergization automatically; stop heating; when electric warming bag can not stop heating by auto power off when fluid injection or leakage equally; even the heating element of electric warming bag does not carry the anti-dry function in addition, then can prevent dry combustion method by deenergization equally, thereby can multiple protective.
Description of drawings
Fig. 1 is an example structure figure of the present utility model.
Fig. 2 is the first application illustration of the present utility model.
Fig. 3 is the second application illustration of the present utility model.
Fig. 4 is the 3rd an application illustration of the present utility model.
Embodiment
In Fig. 1, be example (as follows) with location status shown in scheming, the shape of the support body 1 that the applicant provides is left avertence substantially changes 90 ° 7 fonts, and is hollow, promptly constitutes cavity 11.The front bottom end that plug 2 is fixed on support body 1 is illustrated right-hand member bottom, and three leg 21 of plug 2 extend in the leg chamber 111, are electrically connected with the power line 4 that is incorporated in the cavity 11, and power line 4 has plug.The safety switch 31 of the automatic safety device of recommending as the utility model 3 is three driving switch, is fixed on by screw 312 in the switch cavity 112 of cavity 11.Leg 32 expand the spring base 322 of the likeness in form flange shape of establishing by its top and find a place in or claim to be suspended on the chamber diapire 1121 of switch cavity 112, the global shape of leg 32 is capsule shape or claims finger-like shape, top ends is for omiting with the narrow leg head 321 that contracts, and is corresponding with the switch contact 311 of safety switch 31.Spring 33 integrally is arranged in switch cavity 112, and keep out on the bottom surface of safety switch 31 upper end, and keep out on spring base 322 lower end.In order to grasp electric warming bag 6 operating state of (Fig. 2-4 shows), the utility model offers a pair of indicator lamp hole 12 on support body 1, indicator light 5 is installed in each hole, and indicator light 5 is electrically connected with power line 4, indicator light 5 both can adopt light-emitting diode, also can adopt other similar luminous element.As embodiment, the front end that indicator lamp hole 12 has been opened in support body 1 roof is on the roof of right-hand member, if indicator lamp hole 12 be designed into the roof middle part of support body 1 or rear portion then be fine equally, and for example fruit is opened in indicator lamp hole 12 at the two ends or the middle part of support body 1 side walls, then also be feasible, so the particular location of indicator lamp hole 12 is not restricted.
Application examples 1:
Please in conjunction with Fig. 2, when will be when filling electric warming bag 6 power supplies as the liquid 61 of heat storage medium, that is during to 61 heating of the liquid in the electric warming bag 6, earlier electric warming bag 6 is placed on the flat surface 7 of desk and so on, again plug 2 (being generally female) is planted on the public plug on the electric warming bag 6, then with the plug and the electric power connecting of power line 4, indicator light 5 is glittering, enter the normal heating state, under this state, be formed with a downward support force between the flat surface 7 of being placed when leg 32 and electric warming bag 6 power supplies, leg 32 is under the effect of spring 33, the safety switch 31 of three gears mediate shelves on-state, power connection, normal heating.
Application examples 2:
Please in conjunction with Fig. 3; when electric warming bag 6 gas occurs and rises; formed a support force that makes progress between the flat surface 7 of being placed when leg 32 and electric warming bag 6 power supplies; leg 32 is under the effect of spring 33; the safety switch 31 of three gears is in nethermost gear (third gear) and makes the power supply can't conducting; stop heating, thereby play the safeguard protection under bag state that rises.
Application examples 3:
Please in conjunction with Fig. 4; when electric warming bag 6 is received when flat because of leakage and even the situation of not having leakage and so on; formed a downward support force during greater than normal power supply between the flat surface 7 of being placed during 6 power supplies of leg 32 and electric warming bag; leg 32 is under the effect of spring 33; the safety switch 31 of three gears is in uppermost gear (first grade) and power supply can't be connected, thereby plays lacking the automatic protection of liquid, aneroid.
Claims (10)
1; a kind of electric warming bag external safe power supply frame; it comprises a support body (1); one is used for and pre-inserting the mutually and plug (2) that be installed in described support body (1) front end of socket on electric warming bag; one is installed in the automatic safety device (3) that can cut off the electricity supply of described support body (1) other end when electric warming bag rises by bag or leakage; and be used for and plug (2); the power line (4) that automatic safety device (3) is electrically connected; it is characterized in that described automatic safety device (3) comprises safety switch (31); leg (32); spring (33); safety switch (31) is installed in the rear end of described support body (1); leg (32) is hung on the rear end of support body (1); top end face is corresponding with the switch contact (311) of safety switch (31), and the two ends of spring (33) are bearing in respectively on safety switch (31) and the leg (32).
2, electric warming bag according to claim 1 external safe power supply frame; it is characterized in that described support body (1) constitutes cavity (11); the leg (21) of described plug (2) is stretched in the leg chamber (111) of described cavity (11) and is electrically connected with power line (4); and in the whole switch cavity (112) that must be contained in described cavity (11) of the safety switch (31) of described automatic safety device (3), be electrically connected with power line (4).
3, electric warming bag according to claim 1 external safe power supply frame, the top expansion that it is characterized in that described leg (32) is provided with a spring base (322), the lower end of described spring (33) is bearing on the spring base (322), and the upper end is bearing on the bottom face of safety switch (31).
4, electric warming bag according to claim 1 is characterized in that the narrow leg head (321) that constitutes in top of described leg (32) with external safe power supply frame with contracting, and leg head (321) is corresponding with switch contact (311).
5, electric warming bag according to claim 1 and 2 external safe power supply frame, it is characterized in that offering on the described support body (1) at least one indicator lamp hole (12), indicator light (5) is installed in the indicator lamp hole (12), and indicator light (5) is electrically connected with power line (4).
6, electric warming bag according to claim 5 is characterized in that with external safe power supply frame described indicator light (5) is a light-emitting diode.
7, electric warming bag according to claim 5 is characterized in that with external safe power supply frame the shape of described support body (1) is 7 fonts of 90 ° of left avertences substantially.
8, electric warming bag according to claim 5 is characterized in that with external safe power supply frame described indicator lamp hole (12) is opened on the roof or side walls of support body (1).
9, electric warming bag according to claim 8 is characterized in that with external safe power supply frame described indicator lamp hole (12) is opened in roof front end or the middle part or the rear end of support body (1).
10, electric warming bag according to claim 8 is characterized in that with external safe power supply frame described indicator lamp hole (12) is opened in side walls front end or the middle part or the rear end of support body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200341444U CN201001200Y (en) | 2007-01-27 | 2007-01-27 | External type safety power supply holder for electric heating bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200341444U CN201001200Y (en) | 2007-01-27 | 2007-01-27 | External type safety power supply holder for electric heating bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201001200Y true CN201001200Y (en) | 2008-01-02 |
Family
ID=39015600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200341444U Expired - Fee Related CN201001200Y (en) | 2007-01-27 | 2007-01-27 | External type safety power supply holder for electric heating bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201001200Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702030A (en) * | 2017-09-28 | 2018-02-16 | 谢志坚 | A kind of constructing tunnel lighting device |
-
2007
- 2007-01-27 CN CNU2007200341444U patent/CN201001200Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702030A (en) * | 2017-09-28 | 2018-02-16 | 谢志坚 | A kind of constructing tunnel lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20120127 |