CN213215776U - Baby's hair-dryer control circuit - Google Patents

Abstract

The utility model discloses a control circuit of a baby hair drier, which comprises a control circuit and a control circuit, wherein the control circuit is connected with the control circuit; alternating current control circuit, alternating current control circuit includes first current-limiting resistance, alternating current heating wire, first switch, the AC plug is connected through the AC wire to the one end of first switch, the other end of first switch with the one end of first current-limiting resistance is connected, first current-limiting resistance's the other end with alternating current heating wire connects, direct current control circuit includes battery, second current-limiting resistance, direct current heating wire and fan, the charging panel is connected to the one end of battery, the utility model discloses a battery powered makes the hair-dryer no longer receive the use area restriction, and the convenience is strong, can adapt to the baby and use.

Description

Baby's hair-dryer control circuit

The technical field is as follows:

the utility model relates to a baby's hair-dryer field, concretely relates to baby's hair-dryer control circuit.

Background art:

traditional baby hair-dryer obviously uses the scene restricted, for example the power failure or child see that the hair-dryer noise is big, run out, can't take the line to use all, influence normal use, to this, the utility model discloses release a baby hair-dryer control circuit wireless and wired all usable.

Aiming at the application technical requirements of an adult blower, the blower is generally high in air volume (>10m | s), high in power (>1200W) and high in heat output (the temperature of an air outlet is > 60 ℃), and the product is greatly limited in implementation under the scheme of a wireless lithium battery; however, for the special group of babies, the hair dryer can be completed by a scheme of a built-in rechargeable battery under the conditions of low heat (the temperature of an air outlet is about 45 ℃), low noise (60DB), low wind speed (3m | s) and low power (125W), so that certain cruising requirements are met.

For the charging and discharging management of the battery and the influence of the service life of the battery, if a single scheme design with a built-in lithium battery is selected, the situation of forgetting to charge or insufficient charging can occur, and meanwhile, due to the comprehensive volume and weight limitation of the power consumption of the hair dryer, the situation of insufficient single-use conditions and frequent charging and discharging operations can also occur, so that the service life of the battery is caused.

When charging is performed while using, it is difficult to perform charging while using a product with an output of 125W and a DC supply voltage of 12V in consideration of the technical conditions thereof, and the current consumption exceeds 10A. Therefore, under the basic condition of single DC power supply, a group of independent alternating current heating assemblies are arranged for plug-in use under the unnecessary condition, and the practicability of the product is significant.

The utility model has the following contents:

the utility model aims to solve the technical problem that a baby hair drier control circuit is provided.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize: an infant hair dryer control circuit comprising;

the alternating current control circuit comprises a first current limiting resistor, an alternating current heating wire and a first switch, wherein one end of the first switch is connected with an AC plug through an AC lead, the other end of the first switch is connected with one end of the first current limiting resistor, and the other end of the first current limiting resistor is connected with the alternating current heating wire;

the direct current control circuit, direct current control circuit includes battery, second current-limiting resistance, direct current heater strip and fan, the charging panel is connected to the one end of battery, the other end of battery is connected with gear switch's one end, gear switch's the other end is connected the third switch, the third switch with the one end of second current-limiting resistance is connected, the other end of second current-limiting resistance pass through the second switch with direct current heater strip is connected, first switch, second switch and third switch all are connected with the controller, the output of first switch with direct current heater strip's the parallelly connected fan of right-hand member.

Compared with the prior art, the utility model discloses following technological effect has: the utility model discloses a battery powered, make the hair-dryer no longer receive the service area restriction, the convenience is strong, can adapt to the baby and use, in addition, this device can be wireless many scenes and use, also can use the household electrical appliances power supply, wireless usefulness be the battery power supply, wired is with the power supply of household electrical socket.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a circuit diagram of embodiment 2 of the present invention;

number in the figure: 1. an AC plug; 2. an AC wire; 3. a first switch; 4. a first current limiting resistor; 5. alternating current heating wires; 6. a direct current heating wire; 7. a second current limiting resistor; 8. a fan; 9. a second switch; 10. a third switch; 11. a gear switch; 12. a charging plate; 13. a storage battery; 14. a controller; 15. and a protection circuit.

The specific implementation mode is as follows:

in order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further clarified by combining the specific drawings.

It should be noted that, in the present invention, when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

As shown in fig. 1, the utility model provides a control circuit of a baby hair dryer, which comprises;

the alternating current control circuit comprises a first current limiting resistor 4, an alternating current heating wire 5 and a first switch 3, wherein one end of the first switch 3 is connected with an AC plug 1 through an AC lead 2, the other end of the first switch 3 is connected with one end of the first current limiting resistor 4, and the other end of the first current limiting resistor 4 is connected with the alternating current heating wire 5;

direct current control circuit, direct current control circuit includes battery 13, second current limiting resistor 7, direct current heater strip 6 and fan 8, charging panel 13 is connected to the one end of battery 13, the other end of battery 13 is connected with gear switch 11's one end, third switch 10 is connected to gear switch 11's the other end, third switch 10 with second current limiting resistor 7's one end is connected, second current limiting resistor 7's the other end pass through second switch 9 with direct current heater strip 6 is connected, first switch 3, second switch 9 and third switch 10 all are connected with controller 14, third switch 10's output with direct current heater strip 6's the parallelly connected fan 8 of right-hand member.

When the AC plug is not inserted, the infant hair drier uses the storage battery to perform power-on heating and air blowing, power conversion is realized through the internal gear switch, different gear function outputs are realized, direct current passes through the direct current heating wire, the conversion of electric energy into heat energy is realized, and hot air is delivered to the position required by a user through the fan

After the AC plug is inserted, the alternating current heating wire is powered by mains supply, and the fan is also powered on to work. Alternating current city electricity has realized the constant current through first current-limiting resistor, through the alternating current heater strip, has realized the exchange of electric energy and heat energy, and alternating current can connect in parallel the security electric capacity, has realized the commercial power protection, prevents that personnel from appearing high pressure in the use, the unsafe phenomenon of striking sparks.

After the alternating current plug is inserted, the controller automatically disconnects the second switch without manual intervention, the maximum protection action of the electric quantity of the storage battery is realized, and the model of the controller is ECT-FDR-A.

The DC heating wire 6 and the AC heating wire 5 are respectively provided with three gears with adjustable power, and three indicating lamps (sharing 3 indicating lamps) respectively indicate the gear number to be the fifth gear by using different colors (red, yellow and green).

When the storage battery 13 is charged, a charging indicator light is provided to indicate whether the storage battery is fully charged (a red light is charged and a green light is fully charged). The built-in charging panel 12 realizes constant voltage constant current charging, and the battery is protected completely, prevents to overcharge, overflows, prevents to strike sparks, will put safely in the first place, and the state of pilot lamp lets the user in time know whether full of, whether can use simultaneously.

Example 2

As shown in fig. 2 and 3, on the basis of embodiment 1, a protection circuit may be connected in series between the first current limiting resistor and the ac heating wire, where the protection circuit includes a voltage regulator tube, a rectifier bridge, a transformer, a photoelectric sensor, a transistor, and a self-locking circuit;

when the alternating current works, the ignition prevention circuit is provided with an alternating current mutual inductor and a sensor, so that when the equipment leaks electricity, the power supply is cut off in units of microsecond poles through an internal high-power crystal valve tube and a self-locking circuit.

The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (1)

1. An infant hair dryer control circuit, comprising;

the alternating current control circuit comprises a first current limiting resistor, an alternating current heating wire and a first switch, wherein one end of the first switch is connected with an AC plug through an AC lead, the other end of the first switch is connected with one end of the first current limiting resistor, and the other end of the first current limiting resistor is connected with the alternating current heating wire;

the direct current control circuit, direct current control circuit includes battery, second current-limiting resistance, direct current heater strip and fan, the charging panel is connected to the one end of battery, the other end of battery is connected with gear switch's one end, gear switch's the other end is connected the third switch, the third switch with the one end of second current-limiting resistance is connected, the other end of second current-limiting resistance pass through the second switch with direct current heater strip is connected, first switch, second switch and third switch all are connected with the controller, the output of first switch with direct current heater strip's the parallelly connected fan of right-hand member.

Images