CN2216216Y

CN2216216Y - Hot-air duct type electric warmer

Info

Publication number: CN2216216Y
Application number: CN 95201537
Authority: CN
Inventors: 尹维平; 郭得璞
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-28
Filing date: 1995-01-28
Publication date: 1995-12-27
Anticipated expiration: 2005-01-28

Abstract

The utility model relates to an electric warmer composed of electric heating elements, a control circuit and a support member. The electric heating elements adopt TFK thermoelements which are made of supporting sectional materials, the surface of which is spread with a layer of electrothermal film. The structure of the support member is structured by a hot air duct. The electric heating elements are arranged in the hot air duct. The section of the utility model can be various sections. The electrothermal film can be spread on the inner wall or the outer wall of the section with a cavity. The section with a cavity can make use of the cavity to form the hot air duct, the section is a support frame, and then a novel air heater can be formed.

Description

Hot-air duct type electric warmer

The utility model belongs to electric heater, particularly electric heater.

Traditional electric heater is commercially available hot oil type electric heater.Its operation principle is by the thermal source and the heat-transfer working medium electric heating oil that are sealed in the radiator heat to be passed to radiator, carries out heat exchange by spreader surface and air again.Its shortcoming is that middle heat-transfer working medium is arranged between thermal source and the air, has reduced the thermal efficiency.Another shortcoming is that radiator and air are open heat exchange, and its heat exchange efficiency is not high yet.

The purpose of this utility model is the technical scheme that proposes a kind of new electrically heating element and adopt the neotectonics electric heater of this kind element, improves the thermal efficiency of electric heater.

Electric heater of the present utility model is made of electric pyrogenicity element, control circuit and support member, and electric pyrogenicity element adopts the section bar surface to cover the TFK thermal element of electric pyrogenicity film structure, and the structure of support member is the support member of hot-flow flue structure; Electricity pyrogenicity element is placed in the hot-flow flue.Described TFK thermal element can be the electric pyrogenicity element that the glass tubing surface is covered with electric pyrogenicity film structure.Described support member can be to adopt armorplate glass and engineering plastics to make shell and framework, and there is air inlet the bottom surface, and end face has the support member of the hot-flow flue structure of exhaust outlet.Described support member hot-flow flue can be provided with the temperature control that connects with control circuit and cross thermal cut-out switch.In the described support member hot-flow flue horizontal level gauge tap that connects with control circuit can also be set.In the described support member hot-flow flue broken circuit alarmer that connects with control circuit can also be set.One end of described support member hot-flow flue can be provided with air blast

Characteristics of the present utility model at first are the TFK thermal elements that proposes neotectonics, promptly be covered with the technical scheme of the thermal element of electric pyrogenicity film as the electric heater thermal element on the section bar surface, solved and used the easily broken problem of heating wire, make electric heater electricity pyrogenicity element directly and the air imagination of carrying out heat exchange have Practical significance.Another characteristics are to adopt the support member of passage of heat structure, and the TFK thermal element is placed in the passage of heat, air is circulated in the passage of heat also form the condition of forcing the direct heat exchange naturally, have improved heat exchanger effectiveness significantly.

Embodiment of the present utility model is as shown in drawings:

Fig. 1, be the outward appearance axis side view of a kind of product design of the present utility model;

Fig. 2, be that the master of Fig. 1 looks cross section view.

Number in the figure is represented:

1, arc-spark stand, 2, nameplate, 3, shutter, 4, temperature controller, 5, upper ledge, 6, decoration panel, 7, indicator lamp, 8, power switch 9, Power Regulation switch, 10, insulator, 11, housing, 12, transparent TFK thermal element, 13, alarm buzzer, 14, electronic circuit, 15, support, 16, safety net, 17, lower frame, 18, power line, 19, position switch, 20 armorplate glass shells.

In conjunction with the accompanying drawings the utility model is specified:

This routine electric heater product adopts the TFK thermal element 12 of transparent glass tube section bar surface-coated electricity pyrogenicity film production, and some TFK thermal element 12 horizontal pendulums are placed on the arc-spark stand, as shown in Figure 2.Also can be placed on the arc-spark stand by vertical pendulum, can be easy to imagine that vertical pendulum is placed on the structure on the arc-spark stand from Fig. 2, so accompanying drawing is omitted.Bracing frame is made of upper ledge 5, lower frame 17 and housing 11 one.Arc-spark stand 1 is fixed on the housing, between upper and lower frame.Settled armorplate glass shell 20 in arc-spark stand 1 both sides and housing one; Housing upper ledge 5 is equipped with a shutter 3, and lower frame 17 is equipped with safety net 16; Make bracing frame constitute the hot-flow flue of a built-in thermal element.Safety net can prevent that nuisance from entering hot-flow flue.Shutter can be controlled the air draft direction.Settle temperature controller 4 at hot-flow flue exhaust outlet place.Can install nameplate 2 and decoration panel 6 on housing 11, panel 6 is provided with indicator lamp 7.Power switch 8 and Power Regulation switch 9 connect with housing 11 one by insulating trip 10.Buzzer 13 is contained on the housing 11.All position switch 19 can be set on the housing 11 or on the support 15 or on the arc-spark stand 1.Electronic circuit 14 is contained on the housing by support 15.Power line 18 is connected with arc-spark stand 1 and electronic circuit 14, and draws outside the housing 11.

The utility model has the advantages that thermal element directly and air carry out heat exchange and need not heat-transfer working medium, can improve heat exchanger effectiveness.Another advantage is that thermal element places hot-flow flue, makes air be reinforced heating.Further improved heat exchanger effectiveness.In addition, cut heat-transfer working medium and adopt the hot-flow flue structure can make the more simple, light of electric heater product design.

This routine electric heater is the electric heater of air self-circulation type.The TFK thermal element of critical piece and hot-flow flue wall have adopted clear glass and safety glass material, and internal structure is come into plain view, and give the pure and fresh sensation of people.

The effect of the overtemperature protection measure temperature controller that is provided with among the design is, and is not smooth at passage of heat air-flow, makes that temperature rise is too high will to be directed at before accident takes place, and the circuit of can cutting off the electricity supply automatically lowers temperature; Temperature drops to can also recover energising and heats up when setting the number of degrees, temperature controller can adopt various ways, structure, for example can adopt bimetallic type.The utility model can be provided with position switch, and for example pendulum or mercury formula liquid level formula position switch, electric heater occurrence positions tilt or the circuit of cutting off the electricity supply during overturning, in case the hot blast circulation does not freely have an accident in the hot-flow flue.Each broken circuit protecting equipment all can connect electronic alarm circuit and audible-visual annunciator, and when open circuit conditions takes place, alert always.Establish many thermal elements in the design's hot-flow flue, can corresponding external many grades of Power Regulation switches, manually or automatically regulate electric thermal power.

Section bar of the present utility model can be diversified section bar.There is the chamber section bar can or cover electric pyrogenicity film within it on the outer wall.Have the chamber section bar can utilize its inner chamber to form hot-flow flue, section bar itself is again a bracing frame, then becomes new-type air-heater.End installing air blast or pressure conveyer at hot-flow flue become the blowing-type air-heater, or become the channel type electric thermal reaction apparatus, then can direction on demand put.

The utility model is with a wide range of applications in civilian and industrial production.

Claims

1, a kind of electric heater is made of electric pyrogenicity element, control circuit and support member, it is characterized in that electric pyrogenicity element adopts the section bar surface to cover the TFK thermal element of electric pyrogenicity film structure, and the structure of support member is the support member of hot-flow flue structure; Electricity pyrogenicity element is placed in the hot-flow flue.

2, electric heater as claimed in claim 1 is characterized in that described TFK thermal element is the electric pyrogenicity element that the glass tubing surface is covered with electric pyrogenicity film structure.

3, electric heater as claimed in claim 1 is characterized in that described support member is to adopt armorplate glass and engineering plastics to make shell and framework, and there is air inlet the bottom surface, and end face has the hot-flow flue of exhaust outlet.

4, electric heater as claimed in claim 1 is characterized in that being provided with in the described support member hot-flow flue temperature control that connects with control circuit and crosses thermal cut-out switch.

5, electric heater as claimed in claim 1 is characterized in that being provided with in the described support member hot-flow flue horizontal level gauge tap that connects with control circuit.

6, electric heater as claimed in claim 1 is characterized in that being provided with in the described support member hot-flow flue broken circuit alarmer that connects with control circuit.

7, electric heater as claimed in claim 1 is characterized in that an end of described support member hot-flow flue is provided with air blast.