CN87204233U

CN87204233U - Pocket electric heating device

Info

Publication number: CN87204233U
Application number: CN 87204233
Authority: CN
Inventors: 汤伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-05-19
Filing date: 1987-05-19
Publication date: 1988-01-06

Abstract

The utility model discloses a hand-held electric heating device used for the primary and middle school students who do the homework in winter and the old who need heating; the hand-held electric heating device can be contacted directly with the human body. The hand-held electric heating device comprises three parts which are a bracket assembly, an outer shell and an electric heating element. The utility model can be used safely in the place with the urban electricity; the volume of the hand-held electric heating device is smaller than the common stationery case, the weight is only 0.15 kg, and the maximum power consumption is 20 watts. Besides the hand-held electric heating device is used for heating, the hand-held electric heating device is also used for the hot compress and the physical therapy.

Description

Pocket electric heating device

A kind of micro electic heater for heating and heating usefulness belongs to electrothermal device.

Electric heating utensil commonly used, great majority are for fixing contactless.Electric energy conducts to surrounding medium after being converted to heat energy, and repeated transmission is directed at human body, so power consumption is big, the cost height.According to China's present circumstances, do not advocate electric heating, its main cause is: electricity supply and demand contradiction is big, cost is high, and civil buildings line load ability is little on the other hand, if cause circuit over loading even breaking out of fire easily with electric heating.

Warming is that more scabrous problem, especially students in middle and primary schools are in and do one's assignment, and all is that hands, foot are endured cold easily usually, wears cotton-padded shoes and still can keep out the cold, and wear glove with regard to the inconvenience picture that writes.At present China resident has the heater unit except that minority family, and generally still based on coal stove for heating, but coal stove for heating can not each room one, and major part is public, and it is often conflicting to warm oneself by a fire and do one's assignment.The hand warmer supply is arranged in the market, and this stove is that the extraordinary charcoal of burning is a fuel, and each price is 0.03 yuan, in case light even afterflame burns, can not stay fire and truce, though can carry, utilization rate is not high, and the exhaust emission air that generates, unfavorable health.

At the problems referred to above, the purpose of this utility model provides that a kind of cost is low, power consumption is little, safety easy to use, the hand holding type miniature electric heating device that human body can directly contact, use for students in middle and primary schools, old people's warming, if use five hours meters every day, the electricity charge are no more than 0.03 yuan, and general family can both bear.

The box-like warmer that this utility model is formed by members such as a clavate heating, carriage assembly, shell leads is realized above-mentioned purpose.

Below in conjunction with drawings and Examples, operation principle of the present utility model is described in detail in detail, architectural feature and work process.

Description of drawings:

Fig. 1 is axial main cutaway view

Fig. 2 is a vertical view

Fig. 3 is the heating cutaway view

Fig. 4 is the carriage assembly transverse views

Fig. 5 is a circuit diagram.

This utility model mainly is made of shell, heating, carriage assembly three parts, and carriage assembly is installed in the enclosure, and heating is installed on the carriage assembly.Fig. 1 is an axial main cutaway view of the present utility model, and carriage assembly is by patch panel (5), locking nut (6), and attachment screw (7), setscrew nut (8), support plate (9), resiliency supported sheet (10) tightens up nut compositions such as (11).Patch panel (5) is 5 millimeters thick high temperature insulation bakelite plates, is shaped as squarely, and its size cooperates with shell inner cavity, be drilled with five through holes on the plate, uppermost two intermediary one supplies to install heating for attachment screw (7) usefulness, and following two as the link post.The thickness of support plate (9) is 2 millimeters aluminium alloy plate, and shape and size are identical with patch panel (5), and different is the no binding post of support plate (9) hole.Tension disc (24), patch panel (5), support plate (9) and resiliency supported sheet (10) are with attachment screw (7) serial connection and with locking nut (6), setscrew nut (8), tighten up nut (11) and tighten up according to the designing requirement shaping.Resiliency supported sheet (10) is that 1 millimeter, wide 15 millimeters aluminium alloy sheet are made by thickness, become " L " shape, respectively be drilled with a screw hole at its two ends, one end is fixed on the support plate (9), the other end pins resiliency supported sheet (10), drain pan (22), cap (17), pintle hook lock (18) serial connection, and tightens up with nut (20) with screw (21) with nut (19).Carriage assembly and shell just constitute an integral body like this.Drain pan (22) is used the aluminum alloy thin plate stamping and forming, (referring to Fig. 2), centre are that rectangle, two ends are for semicircle from vertical view, left end semicircle middle part has the fairlead of power line (3), there is a latch hook (1) at about 10 millimeters places above the hole, also have screw hole at right-hand member semicircle middle part equally.The material of cap (17) is identical with drain pan (22) with shape, and just aspect ratio drain pan (22) is short; Left end semicircle middle part is provided with aperture (2) and cooperates with latch hook (1), and right-hand member semicircle middle part is drilled with screw hole, cooperates with screw (21).Pintle hook lock (18) is made of aluminium alloy sheet, and thickness of slab is 1 millimeter, wide 15 millimeters, is processed into square, Yi Bian push down cap (17), another side is pushed down drain pan (22).

Fig. 2 is a vertical view of the present utility model, carriage assembly is installed in the drain pan (22) and is biased in left end, the insulator of heating (12) places the center of support, it passes patch panel (5) and support plate (9), one end bearing is on patch panel (5), the other end is bearing on the asbestos lasso (23), asbestos lasso (23) is flush-mounted in support plate (9) through hole, its effect is shockproof and reduces the transmission of heat to support plate (9) that the thermal source of heating mainly concentrates on the outside of support plate (9).

Fig. 3 is the heating cutaway view, and it is made up of heating insulator (12), porcelain core pipe (13), resistance wire (14), lead-in wire (15), (16) etc.Insulator (12) is the cylindrical shape porcelain tube, 6 circular holes is set, vertically 4 rows is set altogether, in order to conduct heat (because of not drawing among the little figure of size) along girth.Porcelain core pipe (13) is set in the insulator (12), and insulator (12) two ends are adorned with the porcelain mudding.The end that porcelain core pipe (13) cylindrical is wound with resistance wire (14), resistance wire (14) is connected from the periphery of porcelain core pipe (13) with lead-in wire (15) draws, and the other end is connected from porcelain core pipe inner headed face with lead-in wire (16) draws.Two lead-in wires are installed on the binding post respectively.

Fig. 4 is the carriage assembly transverse views, and two lead-in wires (15) of resistance wire (14), (16) are connected to respectively on the terminal screw (26), and power line (3) is used same connection, and fastening with packing ring (25), nut (27).For preventing in use loosening of power line (3), therefore with high temperature insulation sebific duct (4) power line (3) is wrapped up, and with tension disc (24) sebific duct and power line are pushed down, power line (3) is drawn from the hole at drain pan (22) left end semicircle middle part.

Fig. 5 is a circuit diagram, circuit is made up of resistance wire (14), diode 2CP19 (28), Gear-shift switch (29), when ambient temperature is low, switch (29) closure, at this moment the power consumption in the circuit is 20 watts, when ambient temperature is higher, Gear-shift switch (29) disconnects, to resistance wire, reduce to about 95 volts at this moment by the voltage in the circuit through diode 2CP19 for electric current, and the power consumption in the circuit is about 6 watts, power consumption in the circuit also can be designed to 20 as required, many gears such as 15,10, the circuit gear shift is very convenient.

The utility model manufacturing cost is less than 4 yuan, only 0.15 kilogram of weight, and the volume ratio ordinary writing case is also little, and is easy to use, except being used for heating, also can toast small article and hot compress, the usefulness such as physiotherapy. The utility model is reliable through 2 years experimental safes.

Claims

1, a kind ofly be used for the hand-held electric heating device that human body can directly contact, it is by shell, carriage assembly, heating three parts constitute, carriage assembly is installed in the inner chamber of drain pan, heating is bearing on the support, it is characterized in that, carriage assembly is by patch panel [5], locking nut [6], attachment screw [7], setscrew nut [8], support plate [9], resiliency supported sheet [10], tightening up nut [17] forms, attachment screw [7] is with patch panel [5], support plate [9], resiliency supported sheet [10] serial connection is in aggregates, and with locking nut [6], setscrew nut [8], tightening up nut [11] cooperates with attachment screw [7], make the position relative fixed of member, by resiliency supported sheet [10] carriage assembly is connected with shell, heating is by insulator [12], porcelain core pipe [13], resistance wire [14], lead-in wire [15], [16], diode [28], shift switch [29] is formed, the insulator of heating [12] runs through the middle part of patch panel [5] and support plate [9], and by above-mentioned two boards supporting.

2, hand-held electric heating device according to claim 1, the shell that it is characterized in that it is made up of drain pan (22) and cap (17), whole casing is flat partially box-like, the left end middle part of drain pan (22) has the power supply lead wire hole, above the hole, be provided with latch hook (1), it cooperates latch hook (1) with aperture (2) on the cap (17), the right-hand member middle part of cap (17) and drain pan (22) all is processed with screw hole, one end of resiliency supported sheet (10) is fixed on the support plate (9), the other end uses screw (21) with drain pan (22), cap (17), resiliency supported sheet (10), pintle hook lock (18) serial connection, and tighten up with nut (20), make carriage assembly, shell, heatings etc. connect and compose an integral body.

3, hand-held electric heating device according to claim 1 is characterized in that the porcelain core pipe (13) of heating is set in the insulator (12), and the two ends of insulator (12) are processed with the heat transfer hole with porcelain mudding dress at its circumferential and axial.

4, hand-held electric heating device according to claim 1 is characterized in that the thermal source of heating mainly concentrates on the outside of support plate (9), and support plate (9) middle part through hole is embedded with asbestos lasso (23) supporting insulator (12).