CN204049986U - Safe anti-explosion hand warmer - Google Patents
Safe anti-explosion hand warmer Download PDFInfo
- Publication number
- CN204049986U CN204049986U CN201420468212.8U CN201420468212U CN204049986U CN 204049986 U CN204049986 U CN 204049986U CN 201420468212 U CN201420468212 U CN 201420468212U CN 204049986 U CN204049986 U CN 204049986U
- Authority
- CN
- China
- Prior art keywords
- switch
- touch
- hand warmer
- seal box
- silica gel
- 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
Links
Landscapes
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
This utility model relates to a kind of safe anti-explosion hand warmer, comprise heater circuit, baroswitch is in series with in heater circuit, described baroswitch comprises touch-switch, seal box, silica gel piece and shell, touch-switch is arranged in seal box, the touching button of the corresponding touch-switch of seal box is provided with through hole, and silica gel piece is sealedly connected on through hole, and shell is arranged on outside seal box.When the pressure in hand warmer reaches non-security value, air pressure withstands silica gel piece allows touch-switch action become open circuit simultaneously, and heater circuit disconnects, and stops heating work, prevents hand warmer from bursting.The heater circuit of this kind of safe anti-explosion hand warmer is in series with baroswitch, this baroswitch encases touch-switch by seal box and shell, the touching button of corresponding touch-switch is provided with through hole, through hole is sealedly connected with silica gel piece, when hand warmer internal pressure reaches non-security value, air pressure withstands silica gel piece allows touch-switch action become open circuit simultaneously, and heater circuit disconnects, stop heating work, prevent hand warmer from bursting.
Description
Technical field
This utility model relates to electric hand warmer technical field, particularly a kind of safe anti-explosion hand warmer.
Background technology
China Patent No. CN201010174764.4 discloses a kind of safety explosion-proof hand warmer on November 3rd, 2010, comprise flexible bag body and plug, heat-conducting liquid is perfused with in bag, electric heating body is provided with in heat-conducting liquid, the bag wall of described bag is provided with electrical socket, electrical socket is provided with the conductive pin for plug grafting, electric heating body and conductive pin are electrically connected, in described bag, the bag wall opposite side of corresponding electrical socket position connects draw piece one end, and the draw piece other end is connected with electrical socket.This kind of explosion-proof hand warmer, when bag internal gas pressure is too high, bag wall expands and pulls electrical socket by draw piece, disconnects the electrical connection between electrical socket and plug, to realize accurate explosion-proof, but, if there is draw piece fracture, then can not cause explosion-proof inefficacy, simultaneously, the difficulty of processing of this structure is comparatively large, so, need perfect further.
Utility model content
The purpose of this utility model is the deficiency overcoming the existence of above-mentioned prior art, and provide a kind of simple and reasonable for structure, when hand warmer air pressure inside is excessive, its air pressure can control heating power supply and disconnect, prevent from popping, and, good airproof performance, effectively avoid electric leakage accident, safe anti-explosion hand warmer safe and reliable, easy for installation.
The purpose of this utility model is achieved in that
Safe anti-explosion hand warmer, comprise heater circuit, baroswitch is in series with in heater circuit, it is characterized in that, described baroswitch comprises touch-switch, seal box, silica gel piece and shell, and touch-switch is arranged in seal box, and the touching button of the corresponding touch-switch of seal box is provided with through hole, silica gel piece is sealedly connected on through hole, and shell is arranged on outside seal box.When the pressure in hand warmer reaches non-security value, air pressure withstands silica gel piece allows touch-switch action become open circuit simultaneously, and heater circuit disconnects, and stops heating work, prevents hand warmer from bursting.
Touch-switch becomes normally-closed circuit again and normally works again when the pressure drops.
The purpose of this utility model can also adopt following technical measures to solve:
As a kind of scheme more specifically, described seal box comprises upper casing, mesochite and lower casing, mesochite top is opened wide, bottom is provided with described through hole, touch-switch puts into mesochite from mesochite top, the touching button of touch-switch stretches in through hole, the link electrode of touch-switch is positioned at its top, upper casing bottom-open, and be enclosed within from top to bottom outside mesochite, the corresponding described link electrode in upper casing top is provided with resigning hole, lower casing is arranged on bottom mesochite, silica gel piece sealing pressing is connected between lower casing and mesochite, and hide described through hole, air flue is provided with in the middle part of lower casing corresponding silica gel sheet, air flue passes outside outer casing bottom.Air flue can guide gas in hand warmer to enter silica gel piece place.
It is protruding that described silica gel piece end face is provided with touching, and touching projection stretches in described through hole.Protruding by arranging touching at silica gel piece center, silica gel piece center rigidity is improved, when silica gel piece is upwards out of shape by air pressure generation, the touching button of touch-switch can better be touched, touch-switch is disconnected.
Between described shell and seal box periphery and seal box top is provided with epoxy resin layer, improves its tightness further, prevents heat-conducting liquid from entering in touch-switch.
Described heater circuit comprises electric heating body, temperature limiter, fuse and two power supply wiring poles, and electric heating body, temperature limiter, fuse and touch-switch are connected between two power supply wiring poles.Temperature limiter and fuse all with heat-conducting liquid heat conduction, the operating temperature of temperature limiter is lower than the operating temperature of fuse, and under normal condition, when heat-conducting liquid reaches the operating temperature of temperature limiter, circuit disconnects by temperature limiter, stops heating; If temperature limiter is malfunctioning, when even baroswitch is also malfunctioning, when heat conduction liquid state reaches fuse fusing point, fuse blows, stops heating, avoids hand warmer to burst.
Described heater circuit also comprises the heating indicating circuit in parallel with electric heating body, and heating indicating circuit comprises dropping resistor and the LED of series connection.When electric heating body works, LED is lighted, and prompting user hand warmer is in heating process.
Described safe anti-explosion hand warmer also comprises bag and heat-conducting liquid, and heat-conducting liquid is encapsulated in bag, and electric heating body is arranged in bag, and baroswitch is arranged on inside bag or outside, and described air flue is communicated with bag inside.
Described touch-switch is normally closed switch, and namely under normality, touch-switch is in conducting state, and after pressing touching button, touch-switch is in off-state.
The beneficial effects of the utility model are as follows:
(1) heater circuit of this kind of safe anti-explosion hand warmer is in series with baroswitch, this baroswitch encases touch-switch by seal box and shell, the touching button of corresponding touch-switch is provided with through hole, through hole is sealedly connected with silica gel piece, when hand warmer internal pressure reaches non-security value, air pressure withstands silica gel piece allows touch-switch action become open circuit simultaneously, and heater circuit disconnects, stop heating work, prevent hand warmer from bursting; When hand warmer internal gas pressure replys normal condition, silica gel piece and touch-switch reset, and continue to realize heating.
Accompanying drawing explanation
Fig. 1 is this utility model baroswitch decomposition texture schematic diagram.
Fig. 2 is this utility model baroswitch sectional structure schematic diagram.
Fig. 3 is this utility model structural representation.
Fig. 4 is this utility model circuit theory diagrams.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further described:
Shown in Fig. 1-Fig. 4, safe anti-explosion hand warmer, comprise heater circuit 8, baroswitch 10 is in series with in heater circuit 8, described baroswitch 10 comprises touch-switch 2, seal box, silica gel piece 4 and shell 6, and touch-switch 2 is arranged in seal box, and the touching button 22 of the corresponding touch-switch 2 of seal box is provided with through hole 31, silica gel piece 4 is sealedly connected on through hole 31 place, and shell 6 is arranged on outside seal box.
Described touch-switch 2 is normally closed switch.
Described seal box comprises upper casing 1, mesochite 3 and lower casing 5, mesochite 3 top is opened wide, bottom is provided with described through hole 31, touch-switch 2 puts into mesochite 3 from mesochite 3 top, the touching button 22 of touch-switch 2 stretches in through hole 31, the link electrode 21 of touch-switch 2 is positioned at its top, upper casing 1 bottom-open, and be enclosed within outside mesochite 3 from top to bottom, the corresponding described link electrode 21 in upper casing 1 top is provided with resigning hole 11, lower casing 5 is arranged on bottom mesochite 3, silica gel piece 4 sealing pressing is connected between lower casing 5 and mesochite 3, and hide described through hole 31, air flue 51 is provided with in the middle part of lower casing 5 corresponding silica gel sheet 4, air flue 51 passes outside bottom shell 6.
Described silica gel piece 4 end face is provided with touching protruding 41, and touching protruding 41 is stretched in described through hole 31.
Between described shell 6 and seal box periphery and seal box top is provided with epoxy resin layer 7.
Described heater circuit 8 comprises electric heating body 9, temperature limiter t, fuse RU and two power supply wiring pole L, N, and electric heating body 9, temperature limiter t, fuse RU and touch-switch 2 are connected between two power supply wiring poles L, N.In the present embodiment, the operating temperature of temperature limiter t is 70-75 DEG C, and the melting temperature of fuse RU is about 120 DEG C.
Described heater circuit 8 also comprises the heating indicating circuit in parallel with electric heating body 9, and heating indicating circuit comprises dropping resistor R1 and the LED of series connection.
Described safe anti-explosion hand warmer also comprises bag 20 and heat-conducting liquid 30, and heat-conducting liquid 30 is encapsulated in bag 20, and electric heating body 9 is arranged in bag 20, and baroswitch 10 is arranged on inside bag 20 or outside, and described air flue 51 is communicated with bag 20 inside.
Its operation principle is: in hand warmer electrified regulation process, and when hand warmer internal pressure reaches non-security value, air pressure withstands silica gel piece 4 allows touch-switch 2 action become open circuit simultaneously, and heater circuit disconnects, and stops heating work, prevents hand warmer from bursting; When hand warmer internal gas pressure replys normal condition, silica gel piece 4 and touch-switch 2 reset, and continue to realize heating.In addition, in heating process, even if hand warmer air pressure inside is in safety value or baroswitch 10 is malfunctioning, when heat-conducting liquid 30 reaches the operating temperature of temperature limiter t, circuit disconnects by temperature limiter t, stops heating; If temperature limiter t is malfunctioning, when even baroswitch 10 is also malfunctioning, when heat conduction liquid state 30 reaches fuse RU fusing point, fuse RU fuses, and stops heating, avoids hand warmer to burst.
Claims (8)
1. safe anti-explosion hand warmer, comprise heater circuit (8), baroswitch (10) is in series with in heater circuit (8), it is characterized in that, described baroswitch (10) comprises touch-switch (2), seal box, silica gel piece (4) and shell (6), and touch-switch (2) is arranged in seal box, and the touching button (22) of the corresponding touch-switch (2) of seal box is provided with through hole (31), silica gel piece (4) is sealedly connected on through hole (31) place, and shell (6) is arranged on outside seal box.
2. safe anti-explosion hand warmer according to claim 1, it is characterized in that, described seal box comprises upper casing (1), mesochite (3) and lower casing (5), mesochite (3) top is opened wide, bottom is provided with described through hole (31), touch-switch (2) puts into mesochite (3) from mesochite (3) top, the touching button (22) of touch-switch (2) stretches in through hole (31), the link electrode (21) of touch-switch (2) is positioned at its top, upper casing (1) bottom-open, and be enclosed within mesochite (3) from top to bottom outward, the corresponding described link electrode (21) in upper casing (1) top is provided with resigning hole (11), lower casing (5) is arranged on mesochite (3) bottom, silica gel piece (4) sealing pressing is connected between lower casing (5) and mesochite (3), and hide described through hole (31), lower casing (5) corresponding silica gel sheet (4) middle part is provided with air flue (51), air flue (51) passes outside shell (6) bottom.
3. safe anti-explosion hand warmer according to claim 1, is characterized in that, described silica gel piece (4) end face is provided with touching protruding (41), and touching protruding (41) is stretched in described through hole (31).
4. safe anti-explosion hand warmer according to claim 1, it is characterized in that, between described shell (6) and seal box periphery and seal box top is provided with epoxy resin layer (7).
5. safe anti-explosion hand warmer according to claim 2, it is characterized in that, described heater circuit (8) comprises electric heating body (9), temperature limiter (t), fuse (RU) and two power supply wiring poles (L, N), and electric heating body (9), temperature limiter (t), fuse (RU) and touch-switch (2) are connected between two power supply wiring poles (L, N).
6. safe anti-explosion hand warmer according to claim 5, it is characterized in that, described heater circuit (8) also comprises the heating indicating circuit in parallel with electric heating body (9), and heating indicating circuit comprises dropping resistor (R1) and the LED of series connection.
7. safe anti-explosion hand warmer according to claim 5, it is characterized in that, also comprise bag (20) and heat-conducting liquid (30), heat-conducting liquid (30) is encapsulated in bag (20), electric heating body (9) is arranged in bag (20), baroswitch (10) is arranged on bag (20) inner side or outside, and described air flue (51) is communicated with bag (20) inside.
8. safe anti-explosion hand warmer according to claim 1, it is characterized in that, described touch-switch (2) is normally closed switch.
?
?
?
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468212.8U CN204049986U (en) | 2014-08-19 | 2014-08-19 | Safe anti-explosion hand warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468212.8U CN204049986U (en) | 2014-08-19 | 2014-08-19 | Safe anti-explosion hand warmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204049986U true CN204049986U (en) | 2014-12-31 |
Family
ID=52191593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420468212.8U Expired - Fee Related CN204049986U (en) | 2014-08-19 | 2014-08-19 | Safe anti-explosion hand warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204049986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490514A (en) * | 2015-01-04 | 2015-04-08 | 俞秋良 | Water and electricity separated electric water heating bag with explosion-proof switch arranged inside |
-
2014
- 2014-08-19 CN CN201420468212.8U patent/CN204049986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490514A (en) * | 2015-01-04 | 2015-04-08 | 俞秋良 | Water and electricity separated electric water heating bag with explosion-proof switch arranged inside |
| CN104490514B (en) * | 2015-01-04 | 2017-07-11 | 俞秋良 | A kind of electric hot water bag with separated of built-in flame-proof switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204695964U (en) | A kind of power-off explosion-proof type capacitor | |
| CN110600950A (en) | Safety socket capable of automatically popping out short circuit | |
| CN204178930U (en) | Power-off explosion-proof type capacitor | |
| CN204049986U (en) | Safe anti-explosion hand warmer | |
| CN201489931U (en) | Safety surge-proof lightning arrester | |
| CN205921337U (en) | High stability generating line jack box | |
| CN201692142U (en) | Heating controller of flexible electric heating water bag | |
| CN206226917U (en) | One kind is applied to the high-tension on-off control device of dc source high current | |
| CN205683189U (en) | A kind of electric hot-water bag | |
| CN108236360A (en) | A kind of electric kettle | |
| CN204455672U (en) | A kind of safety electric iron | |
| CN206745173U (en) | Cover structure and electric pressure cooking saucepan | |
| CN201947466U (en) | Heating device of electric hot water bag | |
| CN201479407U (en) | Temperature-controlled heating tube | |
| CN104947403A (en) | Safety electric iron | |
| CN205159013U (en) | Axial lead wire type temperature insurance resistor | |
| CN205723307U (en) | Novel electric power disconnecting switch | |
| CN205452223U (en) | Packaged type thermal -link uses subassembly | |
| CN204681713U (en) | A kind of boundary switch controller | |
| CN209249289U (en) | A kind of capacitor for opening end cap | |
| CN201053772Y (en) | Explosive-proof type electric water-warming device | |
| CN103426630B (en) | cylindrical explosion-proof capacitor | |
| CN201188861Y (en) | Soya-bean milk making device | |
| CN204455671U (en) | A kind of cistern assembly of electric iron | |
| CN202461748U (en) | Electric soldering iron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20180819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |