CN2388792Y

CN2388792Y - Totally enclosed separated far infrared heater

Info

Publication number: CN2388792Y
Application number: CN 99210079
Authority: CN
Inventors: 蔡成润; 蔡伟; 李永发
Original assignee: 蔡成润
Priority date: 1999-05-18
Filing date: 1999-05-18
Publication date: 2000-07-19
Anticipated expiration: 2009-05-18

Abstract

The utility model relates to a resistance heater capable of making water and electrity separated and have no dangerous voltage. The existing inner liner is shaped by stainless steel through pressing, a polyurethane foaming heat-insulating layer is integrally filled between the inner liner and a housing, and a heating and separating chamber, and a heating core and a heat conducting sheet are arranged in a housing of the inner liner of the resistance heater to form a water and electricity separating type. A circuit adopts an electronic temperature controlling piece; when the resistance heater has water, the circuit is supplied with the electricity to heat, when the resistance heater has no water, the circuit has no the electricity to automatically control. A magnetic steel temperature limiter is an anti-dry burning device, and a double-metal sheet thermostat is a constant-temperature keeping device.

Description

Totally-enclosed isolated far-infrared heater

The utility model belongs to low tension heater field, is the isolated resistive heating device of a kind of water power.

At present, public as resistance heater be in inner bag, to adopt the metal-back heating tube to put into water to heat, must have a power failure during use, water contacts with resistance once metal-back breaks, and just produces dangerous voltage.

The purpose of this utility model provides a kind of totally-enclosed water power and isolates the far infrared resistance heater, and not only moisture storage capacity is big for it, the heat efficiency is high, and electronic temperature control spare is arranged, there is water to send electric heating, anhydrous automatic power failure, and adopting resistance heating fuse and water to isolate, no dangerous voltage exists.

The purpose of this utility model is achieved in that at existing inner bag selects the compression moulding of high-quality corrosion resistant plate for use, shell adopts the ABS engineering plastics, the whole polyurethane insulating foam layer that fills between inner bag and the shell, in the heater inner bag housing, be provided with the heating isolation ward, indoor have Far-infrared Heating fuse, a conducting strip, and reach water power and isolate no dangerous voltage, and the formation one.Circuit adopts electronic temperature control spare, adjusts temperature and surpasses the outage automatically of 105 degree, magnetic steel temperature limiter; " control maximum temperature and the protection of anhydrous anti-dry two-way ", bimetal thermostat; " control constant temperature keeps lowest temperature 65 degree self-con-tained units ", reaching has water to send electric heating, anhydrous automatic power failure control.

Owing to adopt such scheme, can in the inner bag housing, be provided with heating isolation ward, conducting strip.Circuit adopts electronics temperature draw piece, and it is simple in structure.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the vertical section structural map of heater embodiment.

Fig. 2 is the automatic temperature-controlled circuit theory diagrams of heater.

Fig. 3 is a heater magnetic steel temperature limiter structure chart.

Fig. 4 is heater bimetal leaf constant temperature structure figure.

Among the figure 1, shell, 2, inner bag, 3, heating chamber, 4, the heating fuse, 5, polyurethane insulation coating, 6, hot-water line, 7, the fuse set bolt, 8, cold water pipe, 9, upper flange, 10, lower flange, 11, waterproof pad, 12, bolt, 13, bolt, 14, temperature control part hole, 15, solder joint (10 place) conducting strip (16) is in Fig. 1, shell (1), inner bag (2) closely connects as one with heating chamber (3), and heating fuse (4) is connected polyurethane insulation coating (5) by fuse set bolt (7), hot-water line (6), cold water pipe (8), upper flange (9) and temperature control part (14) all are welded on the inner bag (2), lower flange (10) and heating chamber (3) are welded as a whole, and collision mat (11) is by bolt (12,13) be fixed as one closely with last method (9).

In Fig. 2, among the automatically controlled heat tracing embodiment, heating resistor (1), thermocouple (2), indicator light (3) are connected in parallel on and exchange in 220 volts of circuit, thermocouple contact (4) and bimetal thermostat contact (5), magnet steel is limit warm contact (6) to be connected on and is exchanged in 220 volts of circuit, thermocouple action when thermocouple (2) temperature qualification 105 is spent.Contact (4) is opened circuit and is had a power failure.

In Fig. 3, in the magnet steel limit device example, magnetically soft steel (7) constitutes magnetic steel temperature limiter by spring (8), permanent-magnet steel (9), pressing button (15), magnetically soft steel (7) and permanent-magnet steel (9) suction contains, keeping suction by magnetic force after hand leaves contains, the closed energising in contact (12), connection bolt (13,14) indicator light is bright, and heater (1) has.When temperature surpasses 105 when spending, magnetically soft steel (7) loss of excitation and moving is because contact (12) are opened in the effect of spring (8) and spring (11).Open main circuit contact (6) among Fig. 2, and heating resistor (1) has a power failure, and reach the two-stage protection.

In Fig. 4, among the bimetal thermostat embodiment, when temperature rises to 63 when spending by 0 degree, bimetal leaf (20) expanded by heating and bending, and open contact (17,18), " open contact among Fig. 2 (5) ", heating resistor (1) are connected power supply and are surpassed 105 when spending when temperature by " contact among Fig. 2 (6) " are closed, and contact (6) are also opened and stopped to heat.Treat to be reduced under the temperature 63 when spending, bimetal leaf (20) resets, contact (17,18) is closed again connects circuit, heating resistor (1) has electricity, and temperature rises again and surpasses 63 when spending, and disconnects again, connect again behind subcutaneous the falling of temperature, exhaust the keeping warm mode of energising between heating resistor is in for a long time, bolt (16) is for adjusting temperature, magnetic post (21) insulation fulcrum.

Claims

1, a kind of resistance heater, being linked in sequence at shell body, heat-insulation layer, inner bag, heating chamber, heating fuse, conducting strip, heat-insulation layer and electronic temperature control circuit is one, it is characterized in that: the whole polyurethane insulating foam layer (5) that fills between shell body (1) and the inner bag (2).

2, resistance heater according to claim 1 is characterized in that: heating is from indoor Far-infrared Heating fuse (4), the conducting strip (16) of being provided with, and it is isolated to constitute water power by upper flange (9), lower flange (10), collision mat (11).

3, according to the described far infrared resistance heater of claim 1, it is characterized in that: the electronic temperature control adjuster, temperature adjusting range 20 degree～105 degree surpass the outage automatically of 105 degree.

4, far infrared resistance heater according to claim 1; it is characterized in that: magnetic steel temperature limiter; magnetically soft steel (7); constitute magnetic steel temperature limiter by spring (8), permanent-magnet steel (9); thermocouple is the two-way protection; temperature surpasses the outage automatically of 105 degree in the restriction heating, and anhydrous automatic power failure reaches the two-way protection for anti-dry burning device.

5, far infrared resistance heater according to claim 1; it is characterized in that: bimetal thermostat, lowest temperature is 65 degree in the restriction heater, is controlled automatically by bimetal leaf; protection constant temperature; when temperature rises to 63 when spending by 0 degree, bimetal leaf (20) expanded by heating and bending, open contact (17) (18); when temperature is lower than 63 degree; bimetal leaf (20) resets, and (17) (18) are closed again connects circuit, begins insulation.