CN103006371A - Hand warmer - Google Patents
Hand warmer Download PDFInfo
- Publication number
- CN103006371A CN103006371A CN2011102949915A CN201110294991A CN103006371A CN 103006371 A CN103006371 A CN 103006371A CN 2011102949915 A CN2011102949915 A CN 2011102949915A CN 201110294991 A CN201110294991 A CN 201110294991A CN 103006371 A CN103006371 A CN 103006371A
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- heat
- hand warmer
- circuit board
- battery
- generating component
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Abstract
The invention discloses a hand warmer, comprising a shell, a circuit board, a power supply, a heating assembly, a heat isolation layer and a heat conduction assembly, wherein the power supply and the circuit board are connected and are arranged in the shell, and the heating assembly is connected with the circuit board and is arranged on the outer part of the shell; the heating assembly is fixedly connected with the shell through the heat isolation layer at the bottom of the heating assembly; the heat conduction assembly is arranged in a manner of wrapping and appressing the heating assembly; a heating film is adopted as the heating assembly and is located in an interlayer between the heat isolation layer and the heat conduction assembly; and the heat conduction assembly comprises heat-conduction glue and a heat-conduction sheet, the heat-conduction glue is in tight contact with the heating film and used for balancing the surface temperature of the heat-conduction sheet on the heat-conduction glue, and the heat-conduction sheet is a hand-warmer face layer of a palm curve shape. The hand warmer disclosed by the invention is high in heat efficiency, a rechargeable battery or a common battery can be adopted for the hand warmer, and a battery compartment is provided with a structure capable of preventing battery reversal.
Description
Technical field
The present invention relates to a kind of electric heating utensil, relate in particular to a kind of portable hand warmer.
Background technology
In the winter of cold, many salary layers, office personage need to meet cold for helping them to support in the office outdoor activity of cold, have occurred the warmer for hands of rechargeable type on the market.Be that the application for a patent for invention of ZL200510127898.3 discloses a kind of portable cell hand warmer such as the patent No., this hand warmer comprises metal shell, plastic connecting body, rechargeable battery, described metal shell inboard is sprayed with far-infrared electrothermal film, far-infrared electrothermal film and metal shell inboard have the heat conductive insulating layer to fit, described far-infrared electrothermal film and be contained between the battery of plastic connecting body and have the reflect heat layer to be separated by, described far-infrared electrothermal film is by the switch that is located on the plastic connecting body, and temperature controller is controlled its heating effect and fever time.The structure of the hand warmer of prior art and above-mentioned ZL200510127898.3 patent is similar, the general technical scheme that all adopts electro-heat equipment direct heating housing, so that the thermal efficiency is not high, and the hand warmer charging interval is longer, can not change battery, go out to portably use and in time to charge after not having electricity, can only interrupt using.Although some hand warmer can be changed battery, battery generally is not set prevents connecing antistructure, when because of carelessness the battery electrode wrong, easily cause and burn circuit board.
Summary of the invention
For the deficiencies in the prior art, the invention provides that a kind of thermal efficiency is high, chargeable, pile capable of changing battery prevents that battery from connecing anti-hand warmer.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of hand warmer comprises housing, circuit board, power supply, heat generating component, thermal insulation layer and heat-conductive assembly, and power supply is connected with circuit board, and power supply and circuit board are installed in the housing, and heat generating component is connected with circuit board and is installed to described hull outside; Heat generating component is fixedly connected with housing by the thermal insulation layer of its bottom; The heat-conductive assembly parcel also is close to heat generating component and is installed.
Described heat generating component comprises heating film; Heating film is electrically connected and is installed on circuit board in the interlayer between described thermal insulation layer and the heat-conductive assembly.
Described heat-conductive assembly comprises heat-conducting glue and the conducting strip of mutual close contact; Described heat-conducting glue and described heating film close contact are used for transmitting the heat of heating film generation and the temperature of balanced conducting strip to conducting strip; Described conducting strip is the heating surface layer of hand warmer, has the palm curve shape.
Described enclosure interior also comprises battery compartment, but described power supply is the loading and unloading battery that places in the battery compartment.
Described circuit board contains to the charging circuit of described power source charges and for detection of the temperature-control circuit of controlling described heat-conductive assembly temperature.
Also be provided with conducting strip and the anti-back flush unit that connects that battery is connected with circuit board in the described battery compartment; The positive pole of described battery comprises outstanding top; Prevent that connecing back flush unit is the insulating trip that is provided with perforate, described perforate is slightly larger than the outstanding top of anode; Prevent connecing the position that back flush unit is installed on corresponding anode on the conducting strip.
Described hand warmer also comprises switch, shift knob, power input interface and two LED lights; Switch, power input interface and a LED light of being connected are connected with circuit board respectively; Be connected with switch on the shift knob mounting casing; Described housing comprises upper shell and the lower house of mutual clamping.
Preferably, described heating film is selected the polyimides Electric radiant Heating Film; Described thermal insulation layer is selected foam-rubber cushion.
The electrode tip of described heat generating component is connected with circuit board by welding; Be provided with the high-temperature resistance insulation paper of insulation protection effect between the bond pad locations of heat generating component electrode tip and the described heat-conductive assembly.
Preferably, described conducting strip is selected aluminium flake; Described heat-conducting glue is selected UL flame-retarded heat-conducting glue.
Compared with prior art, hand warmer of the present invention has following useful technique effect: 1, since electro-heat equipment and heat-conductive assembly drawn to connect and be installed to outside the housing, so that electro-heat equipment need not to heat the larger housing of volume itself, so that the thermal efficiency is higher, energy consumption is lower, thereby has prolonged the service time of battery; 2, both the rechargeable battery that can be recycled can be used, also common batteries can be used, convenient, flexible; 3, battery compartment being provided with prevents that battery from connecing antistructure, therefore can prevent from burning circuit board because of improper use.
Description of drawings
Fig. 1 is the decomposing state structural representation of hand warmer of the present invention;
Fig. 2 is the axonometric chart of the conducting strip of hand warmer of the present invention when facing up;
Fig. 3 is the axonometric chart of lower house up time of hand warmer of the present invention;
Fig. 4 is that the battery compartment of hand warmer of the present invention is installed the anti-partial enlarged drawing that connects back flush unit;
Fig. 5 is that the battery compartment of hand warmer of the present invention is not installed the anti-partial enlarged drawing that connects back flush unit;
Fig. 6 is the functional-block diagram of hand warmer of the present invention;
Fig. 7 is the circuit diagram of hand warmer of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 to Figure 3, hand warmer of the present invention comprises: the heat-conductive assembly 5 of housing 1, circuit board 2, power supply 3, heat generating component 4 and transferring heat, and described power supply 3 and circuit board 2 are installed in the housing 1; Heat generating component 4 is connected with circuit board 2 and is installed to described housing 1 outside; Heat generating component 4 is fixedly connected with housing 1 by the thermal insulation layer 42 of its bottom; Heat-conductive assembly 5 parcels also are close to heat generating component 4 and are installed.
Described heat-conductive assembly 5 is positioned at the outermost layer of hand warmer, the heat-conducting glue 52 and the conducting strip 51 that comprise mutual close contact, described heat-conducting glue 52 and described heating film 41 close contacts, be used for transmitting the heat of heating film 41 and the temperature of balanced conducting strip 51 to conducting strip 51, described conducting strip 51 is the heating surface layer of hand warmer, has human body palm curve shape.Described conducting strip 51 is selected aluminium flake; Heat-conducting glue 52 is selected UL flame-retarded heat-conducting glue.On the one hand, heat-conducting glue 52 allows heat Transmit evenly that electro-heat equipment 4 produces to conducting strip 51; On the other hand, because heat-conducting glue 52 is selected insulant, can prevent heat generating component 4 unexpected electric leakages and be transmitted to conducting strip 51; In addition, heat-conducting glue 52 is selected fire proofing, causes accident to prevent that heat generating component 4 excess Temperatures from catching fire.Described heat generating component 4 heating film 41 electrode tip by the welding be connected with circuit board 2; At the high-temperature resistance insulation paper 53 of bond pad locations sandwiched insulation protection effect between described heat-transfer device 5 of the electrode tip of the heating film 41 of described heat generating component 4, this high-temperature insulation paper 53 can effectively prevent the electric leakage of electro-heat equipment 4 electrode tip solder joints.
Described housing 1 comprises upper shell 11 and the lower house 12 of mutual clamping; Described housing 1 inside also comprises battery compartment 14, but described power supply 3 is for placing the loading and unloading battery 31 in the battery compartment 14.Battery 31 is selected AA rechargeable battery or No. 5 aneroid battery.Battery 31 is connected with circuit board 2 by conducting strip 32.The positive pole of described battery 31 comprises outstanding top 311; Described battery compartment 14 also is provided with the anti-back flush unit 33 that connects; The anti-back flush unit 33 that connects is for being provided with the insulating trip of perforate, and perforate is slightly larger than the outstanding top 311 of battery 31 positive poles; Prevent connecing the position that back flush unit 33 is installed on corresponding battery 31 positive poles on the conducting strip 32.More excellent, the anti-verge of opening projection that connects back flush unit 33 forms a bulge loop.As shown in Figure 4, the anti-back flush unit 33 that connects of insulation has stopped conducting strip 32; When battery is installed, battery 31 positive poles that only have outstanding top 311 can pass the anti-position that connects perforate contact conducting strip 32 corresponding battery 31 positive poles of back flush unit 33, and the negative pole of battery 31 does not have the position that outstanding top 311 can't contact conducting strip 32 corresponding battery 31 positive poles; As shown in Figure 5, install when preventing connecing back flush unit 33, battery 31 negative poles can contact arbitrarily the position of conducting strip 32 corresponding battery 31 positive poles, cause circuit board 2 to burn.
This hand warmer also comprises switch 221, shift knob 222, power input interface 23 and two LED lights 21; Switch 221, power input interface 23 and the LED light 21 of being connected are connected with circuit board 2 respectively; Be connected with switch 221 on shift knob 222 mounting casings 1; Power input interface 23 is the MINI USB interface.Two LED lights 21 are respectively LED lamp 211 and LED lamp 212.
Described circuit board 2 contains to the charging circuit of described power supply 3 chargings and for detection of the temperature-control circuit of controlling described heat-conductive assembly 5 temperature.Heat-conductive assembly 5 is close in the temperature sensor 6 of this temperature-control circuit.Temperature sensor 6 is negative temperature coefficient temperature sensor (NTC).
Fig. 6 and Fig. 7 are respectively functional-block diagram and the circuit diagrams of hand warmer of the present invention.Among Fig. 7, the K1 switch is switch 221, and R35 10K NTC is temperature sensor 6.The operation principle of hand warmer of the present invention is described below in conjunction with Fig. 6 and Fig. 7.
Heating:
K1 switch (being switch 221) is pressed, the anode voltage source is to the 3pin-4pin of K1, voltage makes the M1 conducting at R3 and R12 generation pressure reduction, electric current flows to PET-from PET+ and forms the loop, electric current produces heat energy through heat generating component 4, passes through simultaneously LED lamp 212, R11, form the loop through M2, LED lamp 212 lights.
Temperature incubation function:
Work as adstante febre, R35 10K NTC(is temperature sensor 6) when detecting temperature and rising to 52 degrees centigrade, the R35 resistance changes, make U6A the 2nd foot produce high level, 1 foot produces low level and makes the M1 cut-off, cut off power supply, when R35 10K NTC(is temperature sensor 6) when detecting temperature to 48 degree centigrade, the R35 resistance changes, make U6B the 2nd foot produce high level, 7 feet produce high level and make the M1 conducting, and the power supply persistent fever is provided, between 48-52 degree centigrade, reach the constant temperature purpose with steady temperature.
Charge Management:
K1 switch (being switch 221) is returned the OFF state, cell voltage makes R7 produce high level through voltage stabilizing chip U1, Q3 conducting, Q4 cut-off, the M2 conducting, DC power supply 5.0V passes through D1 through power input interface 23, M2 charges the battery, and when voltage rises to 3.2V, will be 0 between Q7 and the Q8, the Q3 conducting, the Q4 conducting, the M2 cut-off stops charging, prevent that effectively battery from causing danger because overcharging, produce pressure drop when DC power supply 5.0V passes through power input interface 23 by D1 and cause the Q1 conducting, through R2, LED lamp 211 forms loops with voltage, LED lamp 211 lights. when cell voltage charges to 3.2V, to be 0, Q3 conducting, Q4 conducting between Q7 and the Q8, it is 0 that the M2 cut-off causes the D1 pressure drop, cause the Q1 cut-off, cut off the current supply circuit of LED lamp 211, LED lamp 211 extinguishes.
Above-described embodiment is the preferred embodiment for the present invention, and all its principles are identical with the present embodiment or approximate with basic structure, all within protection domain of the present invention.
Claims (10)
1. hand warmer, comprise housing (1), circuit board (2), power supply (3), heat generating component (4), thermal insulation layer (42) and heat-conductive assembly (5), power supply (3) is connected with circuit board (2), power supply (3) and circuit board (2) are installed in the housing (1), it is characterized in that: heat generating component (4) is connected with circuit board (2) and is installed to described housing (1) outside; Heat generating component (4) is fixedly connected with housing (1) by the thermal insulation layer (42) of its bottom; Heat-conductive assembly (5) wraps up and is close to heat generating component (4) and installs.
2. hand warmer according to claim 1, it is characterized in that: described heat generating component (4) comprises heating film (41); Heating film (41) and circuit board (2) are electrically connected and are installed in the interlayer between described thermal insulation layer (42) and the heat-conductive assembly (5).
3. hand warmer according to claim 2, it is characterized in that: described heat-conductive assembly (5) comprises heat-conducting glue (52) and the conducting strip (51) of mutual close contact; Described heat-conducting glue (52) and described heating film (41) close contact are used for transmitting the heat of heating film (41) generation and the temperature of balanced conducting strip (51) to conducting strip (51); Described conducting strip (51) is the heating surface layer of hand warmer, has the palm curve shape.
4. according to claim 1 to the described hand warmer of 3 any one, it is characterized in that: described housing (1) inside also comprises battery compartment (14), and described power supply (3) is to place battery compartment (14) but interior loading and unloading battery (31).
5. according to claim 1 to the described hand warmer of 3 any one, it is characterized in that: described circuit board (2) contains to the charging circuit of described power supply (3) charging and for detection of the temperature-control circuit of controlling described heat-conductive assembly (5) temperature.
6. hand warmer according to claim 4 is characterized in that: also be provided with conducting strip (32) and the anti-back flush unit (33) that connects that battery (31) is connected with circuit board (2) in the described battery compartment (14); The positive pole of described battery (31) comprises outstanding top (311); The anti-back flush unit (33) that connects is for being provided with the insulating trip of perforate, and described perforate is slightly larger than the anodal outstanding top (311) of battery (31); The anti-back flush unit (33) that connects is installed on the anodal position of the upper corresponding battery (31) of conducting strip (32).
7. hand warmer according to claim 5 is characterized in that: also comprise switch (221), shift knob (222), power input interface (23) and two LED lights (21); Switch (221), power input interface (23) and the LED light (21) of being connected are connected with circuit board (2) respectively; Shift knob (222) mounting casing (1) is upper to be connected with switch (221); Described housing (1) comprises upper shell (11) and the lower house (12) of mutual clamping.
8. hand warmer according to claim 2, it is characterized in that: described heating film (41) is selected the polyimides Electric radiant Heating Film; Described thermal insulation layer (42) is selected foam-rubber cushion.
9. according to claim 1 to the described hand warmer of 3 any one, it is characterized in that: the electrode tip of described heat generating component (4) is connected with circuit board (2) by welding; Be provided with the high-temperature resistance insulation paper (53) of insulation protection effect between the bond pad locations of heat generating component (4) electrode tip and the described heat-conductive assembly (5).
10. hand warmer according to claim 3, it is characterized in that: described conducting strip (51) is selected aluminium flake; Described heat-conducting glue (52) is selected UL flame-retarded heat-conducting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110294991.5A CN103006371B (en) | 2011-09-27 | 2011-09-27 | A kind of hand warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110294991.5A CN103006371B (en) | 2011-09-27 | 2011-09-27 | A kind of hand warmer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103006371A true CN103006371A (en) | 2013-04-03 |
| CN103006371B CN103006371B (en) | 2015-12-30 |
Family
ID=47955845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110294991.5A Expired - Fee Related CN103006371B (en) | 2011-09-27 | 2011-09-27 | A kind of hand warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103006371B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411259A (en) * | 2013-08-29 | 2013-11-27 | 谢虹 | Hand warmer |
| CN103411257A (en) * | 2013-08-29 | 2013-11-27 | 谢虹 | Hand warmer |
| CN103405302A (en) * | 2013-08-29 | 2013-11-27 | 谢虹 | Hand warmer |
| CN103405301A (en) * | 2013-08-29 | 2013-11-27 | 谢虹 | Hand warmer |
| CN103861831A (en) * | 2014-03-18 | 2014-06-18 | 昆山富凌灶具有限公司 | Constant-temperature cleaning kettle with lighting function and replaceable nozzle |
| CN105509130A (en) * | 2016-01-29 | 2016-04-20 | 周煌辉 | Heater |
| CN106455169A (en) * | 2016-10-10 | 2017-02-22 | 浙江天运机电科技有限公司 | Plug-and-play type heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275965A (en) * | 1995-04-05 | 1996-10-22 | Yasutaka Kobayashi | Heating cushion |
| CN200996563Y (en) * | 2006-08-11 | 2007-12-26 | 梁兵 | Anti-battery-mechanized electric torch |
| JP2008000304A (en) * | 2006-06-22 | 2008-01-10 | Jiro Shimizu | Body warmer and clothes with warmer |
| CN201551439U (en) * | 2009-10-08 | 2010-08-18 | 欧阳剑 | Portable hand warmer |
| CN202288593U (en) * | 2011-09-27 | 2012-07-04 | 顺昌泰科技（深圳）有限公司 | Hand warmer |
-
2011
- 2011-09-27 CN CN201110294991.5A patent/CN103006371B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275965A (en) * | 1995-04-05 | 1996-10-22 | Yasutaka Kobayashi | Heating cushion |
| JP2008000304A (en) * | 2006-06-22 | 2008-01-10 | Jiro Shimizu | Body warmer and clothes with warmer |
| CN200996563Y (en) * | 2006-08-11 | 2007-12-26 | 梁兵 | Anti-battery-mechanized electric torch |
| CN201551439U (en) * | 2009-10-08 | 2010-08-18 | 欧阳剑 | Portable hand warmer |
| CN202288593U (en) * | 2011-09-27 | 2012-07-04 | 顺昌泰科技（深圳）有限公司 | Hand warmer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411259A (en) * | 2013-08-29 | 2013-11-27 | 谢虹 | Hand warmer |
| CN103411257A (en) * | 2013-08-29 | 2013-11-27 | 谢虹 | Hand warmer |
| CN103405302A (en) * | 2013-08-29 | 2013-11-27 | 谢虹 | Hand warmer |
| CN103405301A (en) * | 2013-08-29 | 2013-11-27 | 谢虹 | Hand warmer |
| WO2015027489A1 (en) * | 2013-08-29 | 2015-03-05 | Xie Hong | Electric warmer |
| CN103411257B (en) * | 2013-08-29 | 2016-04-27 | 邢皓宇 | A kind of Diannuanbao |
| CN103861831A (en) * | 2014-03-18 | 2014-06-18 | 昆山富凌灶具有限公司 | Constant-temperature cleaning kettle with lighting function and replaceable nozzle |
| CN105509130A (en) * | 2016-01-29 | 2016-04-20 | 周煌辉 | Heater |
| CN106455169A (en) * | 2016-10-10 | 2017-02-22 | 浙江天运机电科技有限公司 | Plug-and-play type heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103006371B (en) | 2015-12-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170927 |