CN205268271U - Mosquito bites removes appearance of itching - Google Patents
Mosquito bites removes appearance of itching Download PDFInfo
- Publication number
- CN205268271U CN205268271U CN201520969329.9U CN201520969329U CN205268271U CN 205268271 U CN205268271 U CN 205268271U CN 201520969329 U CN201520969329 U CN 201520969329U CN 205268271 U CN205268271 U CN 205268271U
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- heating head
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- battery
- control circuit
- itching
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Abstract
The utility model provides a mosquito bites removes appearance of itching through the mode of electrical heating, to realized instantaneous high temperature handle by the mosquito bites position, can effectively remove and itch, takes effect moreover and does not have toxic and side effect soon. It includes the shell, and the setting is at the heating head of shell one end to and set up at inside control circuit board and the battery of shell, the heating head is used for locating the contact with mosquito bites, the battery is to heating head and control circuit board power supply, control circuit board is used for the temperature of controlled heating head, control circuit board includes microcontroller control circuit to and supply circuit, battery voltage acquisition circuit, the temperature monitoring circuit connected in microcontroller control circuit respectively and heat first intensification circuit, supply circuit and battery voltage acquisition circuit connect in the battery respectively, and the temperature monitoring circuit passes through temperature sensor to be connected with the heating head, heats first intensification circuit and is connected with the heating head.
Description
Technical field
The utility model relates to technical field of medical instruments, is specially a kind of mosquito bite except instrument of itching.
Background technology
Mosquito bite is the daily problem frequently seen, very annoying after being bitten, and gently then very itches unbearably, heavy then infect disease, can affect rest after especially being bitten evening. Although having various anti-mosquito, driving mosquito method, but as all not too fully up to expectations, can be arrived by mosquito bite, if the words arrived by mosquito bite in disease region occurred frequently are then more dangerous.
After by mosquito bite, antipruritic roughly approach has following several:
Can not grab after being bitten. After scratching, tissue juice in skin, lymph liquid etc. ooze out, and swell into a blister, will grab and more itch, but also not easily disappear. Mostly the itch of mosquito bite is the enzyme class that stays by mosquito and protein matter and what body immune system acting in conjunction was formed, if if there being mosquito to adhere to not grabbing, after general 10 to 15 minutes, itching and sympathetic can obviously disappear; Alkaline matter can be adopted in existing way to alleviate, and such as, available ammoniacal liquor is antipruritic, it is possible to perfumed soap dips in water and smears at red and swollen place; If itching in the place of biting very much, first with finger bullet one bullet, then toilet water, essential balm etc. can be coated. Also can smear or brew, with salt solution and toothpaste, place of itching, swollen block can be made like this to soften, it is also possible to effectively antipruritic. But the use range of above several approach is limited, and the crowd being suitable for is also different, and efficiency is low, all needs to smear other materials on skin, it is possible to also do not have onset, just user is caused anaphylaxis simultaneously.
Practical novel content
For problems of the prior art, the utility model provides a kind of mosquito bite except instrument of itching, and by electrically heated mode, realizes TRANSIENT HIGH TEMPERATURE process to by mosquito bite position, can effectively except itching, and instant effect has no side effect.
The utility model is achieved through the following technical solutions:
A kind of mosquito bite, except instrument of itching, comprises shell, is arranged on the heating head of shell one end, and be arranged on control circuit board and the battery of enclosure; Heating head is for contacting with mosquito bite place; Battery is powered to heating head and control circuit board; Control circuit board is for controlling the temperature of heating head; Control circuit board comprises microprocessor control circuit, and respectively at feed circuit, battery voltage acquisition circuit, temperature observation circuit and heating head warm-up circuit that microprocessor control circuit connects; Feed circuit and battery voltage acquisition circuit connect respectively at battery, and temperature observation circuit is connected with heating head by temperature sensor, and heating head warm-up circuit is connected with heating head.
Preferably, the keyswitch being arranged on shell is also comprised; Battery is connected with heating head with heating head warm-up circuit by keyswitch.
Preferably, also comprise condition indication circuit, and the pilot lamp being arranged on shell; Pilot lamp is connected with microprocessor control circuit through condition indication circuit.
Preferably, shell comprises upper cover, battery cabin cap and base; The two ends on base top coordinate with upper cover and battery cabin cap respectively closes formation cavity; Upper cover is fixedly installed, and arranges heating head coordinating the one end closed with base; Battery cabin cap can be dismantled; The bottom of base is wavy.
Preferably, heating head adopts metal to make, and arranges gold-plated protective layer with skin contact surface.
Preferably, the output terminal of heating head warm-up circuit arranges thermistor ceramic PTC, and the thermistor ceramic PTC being arranged on enclosure contacts setting with heating head.
Further, temperature sensor adopts negative temperature coefficient resistance NTC; Negative temperature coefficient resistance NTC contacts setting with thermistor ceramic PTC with heating head simultaneously.
Further again, the cross section of heating head is circular, the thermistor ceramic PTC of the rounded setting of cross section contacts setting with heating head inside in inscribe, negative temperature coefficient resistance NTC arranges and is another side that inscribe point is contrary, negative temperature coefficient resistance NTC also keeps in touch with thermistor ceramic PTC while keeping the contact of maximum area at shell.
Further, the outlet line of negative temperature coefficient resistance NTC and thermistor ceramic PTC is all that gap is arranged with heating head, and arranges along the axisymmetrical of heating head.
Preferably, shell adopts engineering plastics ABS to make.
Compared with prior art, the utility model has following useful technique effect:
The mosquito bite that the utility model provides is except instrument of itching, heating after being energized to heating head by battery, control circuit board control is utilized to make heating head temperature reach the temperature of setting, this design temperature is higher than the denaturation temperature of enzyme, albumen or other bioactive molecules, then heating head is pressed against and is bitten position, make this position can reach instantaneous overheated, this position can be reached the process effect of sterilization, anti-inflammatory, can play except the effect itched with the means of physics, and rapid-action, only need several minutes just can complete. The utility model effectively controls heat-up time by microcontroller, stablizes heating head temperature, strengthens user's comfort. The utility model adopts powered battery, it may also be useful to convenient, it may also be useful to process does not limit by outside atmosphere. The utility model indoor design hardware detection function, it is ensured that circuit reliable operation, meets security requirement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is circuit block diagram of the present utility model.
Fig. 3 is power supply circuit of the present utility model.
Fig. 4 is battery voltage sampling circuit figure of the present utility model.
Fig. 5 is temperature observation circuit figure of the present utility model.
Fig. 6 is heating head warm-up circuit figure of the present utility model.
Fig. 7 is condition indication circuit figure of the present utility model.
Fig. 8 is microprocessor control schematic circuit of the present utility model.
The outward appearance figure of Fig. 9 heating head, 9a are front view, and 9b is that AA is to sectional view.
Figure 10 heating head interior location figure.
Figure 11 heating head draws line chart.
Figure 12 enclosure site plan.
In figure: 1 is heating head; 2 is pilot lamp; 3 is keyswitch; 4 is control circuit board; 5 is battery; 6 is shell; 61 upper covers; 62 is battery cabin cap; 63 is base.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, described in be to explanation of the present utility model instead of restriction.
The utility model comprises control circuit board 4, battery 5 and shell 6; Control circuit board 4 is the core cell of functional realiey. Battery 5 is powered to control circuit board 4. Control circuit board 4 and battery 5 to be assemblied in shell 6 inner. Shell 6 is made up of upper cover 61, battery cabin cap 62, base 63. Structural representation of the present utility model is as shown in Figure 1. Control circuit board 4 is become with microprocessor control circuit ancestral by feed circuit, battery voltage sampling circuit, temperature observation circuit, heating head warm-up circuit, condition indication circuit. Circuit block diagram is as shown in Figure 2.
Feed circuit input electric energy by battery, for pilot circuit is powered after carrying out lowering and stabilizing blood pressure process by LDO chip U2. Selecting 1 joint 9V rectangular cell to power, the width of battery is 26.5 millimeters, thickness 17.5 is millimeter, height 48.5 is millimeter. This kind of battery higher operating voltage can be provided by the utility model of compact structure. U2 is high precision, low noise, big current, the positive voltage regulator of low input and output voltage difference. U2 built-in chip type has reference voltage source, error amplifier, current limiter, phase compensator and a driving transistor. Therefore also can ensure the normal use of battery when input and output voltage difference is very little, thus extend the work-ing life of battery. As 2 pin of Fig. 3, U2 and 4 pin connect one end of switch S 1 after directly connecting, the positive pole of another termination battery of switch S 1, after switch S 1 is pressed, cell voltage inputs to U2, and 3 pin of U2 connect one end of shunt capacitance group C1 and C2, the other end ground connection of shunt capacitance group C1 and C2. After carrying out combined filter by shunt capacitance group C1 and C2, the 3V voltage of the 3 pin stable outputs of U2, it is to increase the Electro Magnetic Compatibility of circuit. The 1 pin ground connection of U2.
The magnitude of voltage of battery output is read by battery voltage sampling circuit. When battery electricity is not enough, cell voltage is less than valve value, and then carries out alarm by microcontroller, the new battery of reminding user to replace, the reliable and stable work of temperature control circuit can be realized like this, avoid causing flase operation in operation because battery electricity is not enough. Such as Fig. 4, voltage sampling circuit is made up of resistance R1, R2, and resistance R1, R2 are to, after cell voltage dividing potential drop, by the voltage subtraction on R2 out, 1 pin introducing microcontroller U1 carries out voltage sample. According to the size of voltage sample value, microcontroller U1 judges that whether battery electricity is sufficient. If electricity is not enough, then carry out alarm by condition indication circuit.
Such as Fig. 5, temperature observation circuit monitors the temperature of heating head by negative temperature coefficient resistance NTC. U2 output voltage 3V is carried out dividing potential drop after connecting with resistance R3 by NTC resistance, and by the voltage subtraction on R3 out, 2 pin introducing microcontroller U1 carry out voltage sample. NTC resistance is a kind of that thermotonus is more responsive, the nonlinear resistor that resistance value can diminish with the rising of temperature. After the temperature of heating head changes, NTC resistance value can change immediately, causes the voltage change at R3 two ends. Microcontroller U1 determines the temperature of heating head according to voltage change.
By thermistor ceramic PTC element, heating head is heated. PTC-element thermal resistance is little, heat exchange efficiency height, the durable non-oxidation of overlength, therefore power saving, it may also be useful to the life-span is long. When being energized on PTC-element, PTC-element generates heat, and by heat exchange pattern, heating head is heated up. Such as Fig. 6, by resistance R4 and resistance R8, control signal PWM is carried out dividing potential drop, the cut-off of the signal control field effect transistor T1 after dividing potential drop or conducting, field effect transistor T1 conducting, electric current is back to battery cathode from battery positive pole through PTC-element, field effect transistor T1, and PTC-element generates heat. One termination battery positive pole 9V of PTC-element, the drain electrode of another termination field effect transistor T1 of PTC-element, the source ground of T1, the public end of the grid connecting resistance R4 and resistance R8 of T1. After heating head being carried out long-time heating by PTC-element, if heating head temperature does not reach preset temp, then represent that the utility model breaks down, and stops heat-processed, and carries out alarm by condition indication circuit.
The current state of mosquito bite instrument is indicated by pilot lamp. Blue indicator light is bright, represents that Current Temperatures is lower than preset temp, is carrying out heating operation; Red indicating light is bright, represents after reaching preset temp by heating, is in temperature maintaining condition. Such as Fig. 7, formed condition indication circuit by core of double-colored pilot lamp, connect 14 pin of U1 after the 1 pin serial connection current limliting resistance R5 of double-colored pilot lamp LED, the 2 pin ground connection of double-colored pilot lamp LED, after the 3 pin serial connection current limliting resistance R6 of double-colored pilot lamp LED, connect 15 pin of U1. Mode additionally by LED flicker can carry out fault alarm prompting. Red indicating light glimmers, and represents that heating head fails to reach design temperature at specific time. Blue indicator light is glimmered, and represents that battery electricity is not enough.
The core of microprocessor control circuit is chip U1, chip U1 be a Width funtion, at a high speed, high reliability, low-power consumption, superpower anti-interference microcontroller chip, inner integrated high precision R/C clock, highly reliable reset circuit, thoroughly save outside expensive crystal oscillator and outside reset circuit, reduction pilot circuit board size, reduces this and uses novel cost. Chip U1 operating voltage 2.5V��5.5V, in sheet, resource is enriched, built-in 8k bytes Flash program store, erasable number of times more than 100,000 times, the SRAM of Embedded 512 byte, built-in A/D converter, timer, asynchronous serial communication interface, it is possible to in-system programmable components. Chip U1 can be good at meeting functional requirement of the present utility model.
Such as Fig. 8, microprocessor control circuit is mainly used in control battery voltage sampling circuit, temperature observation circuit, heating head warm-up circuit, condition indication circuit work. For the illustrated in table 1 of microprocessor control circuit.
Table 1 microcontroller I/O function pin function distributes
If Fig. 9 is heating head outward appearance figure, heating head is metal material, and polished finish is done on surface, and carries out plating protection.
If Figure 10 is the relative position of PTC and NTC in heating head inside, one lateral edges of PTC should be tried one's best near metal shell, as far as possible big gap is exposed in another relative side, NTC puts the place big in the gap of PTC and metal shell, NTC also also keeps in touch with PTC while keeping the contact of big area as far as possible at shell.
If Figure 11 is PTC and NTC from the extraction line chart in heating head, two wires that PTC draws are black, and two wires that NTC draws are redness; 4 wires all must not have with metal shell and are connected. The wire that PTC and NTC draws lays respectively at both sides, and outlet line root should be regular, and there is the lead-in wire head of 2mm length outlet line termination, does zinc-plated process.
The utility model shell 6 carries out injection molding by engineering plastics ABS and becomes, its shock resistance, thermotolerance, lower temperature resistance, chemical proofing and excellent electrical properties, also there is the features such as easy processing, goods dimensional stabilizing, surface luster property be good, tasteless without smelly, harmless meet hygienic safety. Shell 6 construction profile also meets human engineering, and user in use can be pleasant, also wants to ensure enough intensity, insulation degree, to guarantee security of the present utility model simultaneously. Heating head 1, pilot lamp 2, keyswitch 3, control circuit board 4 and battery 5 shell 6 inside position as shown in figure 12.
When the utility model uses, after keyswitch 3 is pressed, the temperature signal of induction is converted to electrical signal and is sent to microprocessor control circuit by temperature sensor, microprocessor control circuit by the signal of reception compared with design temperature, if lower than design temperature, microprocessor control circuit sends heating signal, now the work of heating head warm-up circuit, the electric energy of battery is converted to the heat energy of heating head, and heating head heats up; Otherwise microprocessor control circuit sends forbids heating signal, heating head warm-up circuit stopping work, heating head keeps Current Temperatures, no longer heats up; It is currently heating head 1 heat temperature raising state that microprocessor control circuit is indicated by condition indication circuit simultaneously, or temperature maintaining condition. Cell voltage can also be monitored by microprocessor control circuit in addition, when the electricity of battery 5 is not enough, and reminding user to replace battery, it is ensured that the reliable and stable work of the utility model. Wherein feed circuit preferably adopt low pressure reduction output voltage stabilizing circuit.
The embodiment more than provided realizes the utility model preferably example, and the utility model is not limited to above-described embodiment. The interpolation of any non-intrinsically safe that the technician of this area makes according to the technology feature of technical solutions of the utility model, replacement, all belong to protection domain of the present utility model.
Claims (10)
1. a mosquito bite is except instrument of itching, it is characterized in that, comprise shell (6), it is arranged on the heating head (1) of shell (6) one end, and be arranged on the inner control circuit board (4) of shell (6) and battery (5);
Described heating head (1) is for contacting with mosquito bite place;
Described battery (5) is powered to heating head (1) and control circuit board (4);
Described control circuit board (4) is for controlling the temperature of heating head (1); Control circuit board (4) comprises microprocessor control circuit, and respectively at feed circuit, battery voltage acquisition circuit, temperature observation circuit and heating head warm-up circuit that microprocessor control circuit connects; Feed circuit and battery voltage acquisition circuit connect respectively at battery (5), and temperature observation circuit is connected with heating head (1) by temperature sensor, and heating head warm-up circuit is connected with heating head (1).
2. a kind of mosquito bite according to claim 1 is except instrument of itching, it is characterised in that, also comprise the keyswitch (3) being arranged on shell (6); Battery (5) is connected with heating head with heating head warm-up circuit by keyswitch (3).
3. a kind of mosquito bite according to claim 1 is except instrument of itching, it is characterised in that, also comprise condition indication circuit, and the pilot lamp (2) being arranged on shell (6); Pilot lamp (2) is connected with microprocessor control circuit through condition indication circuit.
4. a kind of mosquito bite according to claim 1 is except instrument of itching, it is characterised in that, described shell (6) comprises upper cover (61), battery cabin cap (62) and base (63); The two ends on base (63) top coordinate with upper cover (61) and battery cabin cap (62) respectively closes formation cavity; Upper cover (61) is fixedly installed, and arranges heating head (1) coordinating the one end closed with base (63); Battery cabin cap (62) can be dismantled; The bottom of base (63) is wavy.
5. a kind of mosquito bite according to claim 1 is except instrument of itching, it is characterised in that, described heating head (1) adopts metal to make, and arranges gold-plated protective layer with skin contact surface.
6. a kind of mosquito bite according to claim 1 is except instrument of itching, it is characterized in that, the output terminal of described heating head warm-up circuit arranges thermistor ceramic PTC, and the thermistor ceramic PTC being arranged on shell (6) inner contacts setting with heating head (1).
7. a kind of mosquito bite according to claim 6 is except instrument of itching, it is characterised in that, described temperature sensor adopts negative temperature coefficient resistance NTC; Negative temperature coefficient resistance NTC contacts setting with thermistor ceramic PTC with heating head (1) simultaneously.
8. a kind of mosquito bite according to claim 7 is except instrument of itching, it is characterized in that, the cross section of described heating head (1) is circular, the thermistor ceramic PTC of the rounded setting of cross section contacts setting with heating head (1) inside in inscribe, negative temperature coefficient resistance NTC arranges and is another side that inscribe point is contrary, negative temperature coefficient resistance NTC also keeps in touch with thermistor ceramic PTC while keeping the contact of maximum area at shell (6).
9. a kind of mosquito bite according to claim 7 is except instrument of itching, it is characterized in that, the outlet line of negative temperature coefficient resistance NTC and thermistor ceramic PTC is all arranged in gap with heating head (1), and arranges along the axisymmetrical of heating head (1).
10. a kind of mosquito bite according to claim 1 is except instrument of itching, it is characterised in that, described shell (6) adopts engineering plastics ABS to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520969329.9U CN205268271U (en) | 2015-11-27 | 2015-11-27 | Mosquito bites removes appearance of itching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520969329.9U CN205268271U (en) | 2015-11-27 | 2015-11-27 | Mosquito bites removes appearance of itching |
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| Publication Number | Publication Date |
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| CN205268271U true CN205268271U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520969329.9U Active CN205268271U (en) | 2015-11-27 | 2015-11-27 | Mosquito bites removes appearance of itching |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107260392A (en) * | 2017-07-30 | 2017-10-20 | 樊晓东 | A kind of system and device of repellent antipruritic rifle |
| CN107280845A (en) * | 2017-06-14 | 2017-10-24 | 樊晓东 | A kind of device for eliminating bite by mosquitos reaction |
| CN107280844A (en) * | 2017-06-14 | 2017-10-24 | 樊晓东 | A kind of device for eliminating bite by mosquitos reaction |
| CN107280850A (en) * | 2017-07-30 | 2017-10-24 | 樊晓东 | A kind of device for eliminating bite by mosquitos reaction |
| CN107280849A (en) * | 2017-07-30 | 2017-10-24 | 樊晓东 | A kind of device for eliminating bite by mosquitos reaction |
| CN107280848A (en) * | 2017-07-30 | 2017-10-24 | 樊晓东 | A kind of combination unit for eliminating bite by mosquitos reaction |
| CN107280846A (en) * | 2017-06-14 | 2017-10-24 | 樊晓东 | The system and device of repellent antipruritic rifle |
| CN109907875A (en) * | 2019-04-10 | 2019-06-21 | 樊晓东 | A kind of itch stopping apparatus and its method of multi-temperature zone gradient-controllable heating |
-
2015
- 2015-11-27 CN CN201520969329.9U patent/CN205268271U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280845A (en) * | 2017-06-14 | 2017-10-24 | 樊晓东 | A kind of device for eliminating bite by mosquitos reaction |
| CN107280844A (en) * | 2017-06-14 | 2017-10-24 | 樊晓东 | A kind of device for eliminating bite by mosquitos reaction |
| CN107280846A (en) * | 2017-06-14 | 2017-10-24 | 樊晓东 | The system and device of repellent antipruritic rifle |
| CN107260392A (en) * | 2017-07-30 | 2017-10-20 | 樊晓东 | A kind of system and device of repellent antipruritic rifle |
| CN107280850A (en) * | 2017-07-30 | 2017-10-24 | 樊晓东 | A kind of device for eliminating bite by mosquitos reaction |
| CN107280849A (en) * | 2017-07-30 | 2017-10-24 | 樊晓东 | A kind of device for eliminating bite by mosquitos reaction |
| CN107280848A (en) * | 2017-07-30 | 2017-10-24 | 樊晓东 | A kind of combination unit for eliminating bite by mosquitos reaction |
| CN109907875A (en) * | 2019-04-10 | 2019-06-21 | 樊晓东 | A kind of itch stopping apparatus and its method of multi-temperature zone gradient-controllable heating |
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