CN207531113U - A kind of duct type electric heating device - Google Patents

A kind of duct type electric heating device Download PDF

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Publication number
CN207531113U
CN207531113U CN201721669783.8U CN201721669783U CN207531113U CN 207531113 U CN207531113 U CN 207531113U CN 201721669783 U CN201721669783 U CN 201721669783U CN 207531113 U CN207531113 U CN 207531113U
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CN
China
Prior art keywords
frequency
heating device
duct type
type electric
electric heating
Prior art date
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Active
Application number
CN201721669783.8U
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Chinese (zh)
Inventor
于苗
张筱敏
王靓靓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Hualiang New Energy Technology Co., Ltd
Original Assignee
Shanghai Hua Liang Solar Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201721669783.8U priority Critical patent/CN207531113U/en
Application granted granted Critical
Publication of CN207531113U publication Critical patent/CN207531113U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of duct type electric heating device of the utility model, duct type electric heating device includes fluid channel, frequency-changing electric heater, frequency converter, frequency-changing electric heater is arranged in fluid channel, frequency converter is arranged on outside fluid channel, and frequency converter is electrically connected by insulated conductor across fluid channel with frequency-changing electric heater.Frequency-changing electric heater includes metallic heating body, frequency conversion loop, insulating layer, and frequency conversion loop is matched by insulating layer with metallic heating body.The utility model makes frequency conversion electric current generate eddy current in metallic heating body and generates heat by setting metallic heating body, frequency conversion loop.So as to solve the problems, such as that heat transmits bad and easy fusing in electric-heating-wire-heating in the prior art.

Description

A kind of duct type electric heating device
Technical field
The utility model is related to heating arts, and in particular to a kind of duct type electric heating device.
Background technology
In order to economize on resources, improve environment protecting, effective use of energy sources, solar water heater has obtained pushing greatly at present Extensively.Since solar water heater is affected by weather, in the case where sunshine is insufficient or dosage is larger, it is often necessary to take auxiliary Help heating, generally use electricity auxiliary heating.
When traditional electrically heated, as shown in Figure 1, usually being heated using U-shaped heating rod A1.As shown in Fig. 2, U-shaped heating rod is made of outer layer metal heat-conducting layer A2, internal heating wire A3, fill insulant A4.This structure is in heating When, it is often necessary to very high temperature will be increased to inside heating rod, be then transferred heat to by high-temperature insulation material outer Layer metal heat-conducting layer, usual high-temperature insulation material thermal conductivity is not high, and internal heating wire is caused to be melted in pyroprocess Disconnected phenomenon reduces the service life of heating rod.Bad and easy fusing is transmitted to solve heat in electric-heating-wire-heating in the prior art The problem of.Therefore, the prior art need to be improved.
Utility model content
The utility model provides a kind of duct type electric heating device, to solve in electric-heating-wire-heating in the prior art Heat transmits the problem of bad and easy fusing.
To achieve the above object, the technical solution adopted in the utility model is:
A kind of duct type electric heating device, the duct type electric heating device include fluid channel, frequency-conversion electrical heating Device, frequency converter, the frequency-changing electric heater are arranged in the fluid channel, and the frequency converter is arranged on the fluid channel Outside, the frequency converter is electrically connected by insulated conductor across the fluid channel with the frequency-changing electric heater;
The frequency-changing electric heater includes metallic heating body, frequency conversion loop, insulating layer, and the frequency conversion loop passes through institute Insulating layer is stated to match with the metallic heating body.
Further improve is that the metallic heating body is tubular metal heater.
Further improve is that the frequency conversion loop is arranged on the tubular metal heater by the insulating layer Outer ring.
Further improve is that the tubular metal heater is internally provided with the inside heat transfer sheet of axis.
Further improve is that the frequency conversion loop is arranged on the tubular metal heater by the insulating layer Inner ring.
Further improve is, the outside heat transfer sheet of axis is equipped with outside the tubular metal heater.
Further improve is, magnetizer is equipped in the frequency conversion loop.
Further improve be, the metallic heating body is drum metallic heating body, the drum metallic heating body packet A central shaft is included, the central shaft both ends are equipped with thermally conductive sheet;
The thermally conductive sheet is equipped with dispersing type heat conduction item;
The frequency conversion loop is arranged on by the insulating layer on the central shaft.
Further improve is that the center axis center is equipped with heating channel, and heat transfer sheet is equipped in the heating channel.
Further improve is that the fluid channel includes a fixed -piping, and the fixed -piping is externally provided with thermal insulation layer; The fixed -piping is matched with the metallic heating body.
In terms of existing technologies, the utility model makes frequency conversion electric current by setting metallic heating body, frequency conversion loop Eddy current is generated in metallic heating body and generates heat.It is bad so as to solve heat transmission in electric-heating-wire-heating in the prior art And the problem of easily fusing.
Description of the drawings
Fig. 1 is the structure diagram of prior art heating rod;
Fig. 2 is the decomposition diagram of prior art heating rod;
Fig. 3 is a kind of structure diagram of duct type electric heating device of the utility model;
Fig. 4 for a kind of frequency-changing electric heater of duct type electric heating device of the utility model, show by the first mode configuration It is intended to;
Fig. 5 is that a kind of second of mode configuration of frequency-changing electric heater of duct type electric heating device of the utility model is shown It is intended to;
Fig. 6 for a kind of frequency-changing electric heater of duct type electric heating device of the utility model, show by the third mode configuration It is intended to.
Specific embodiment
In order to which technological means, creation feature, reached purpose and effect for realizing utility model are easy to understand, below With reference to attached drawing, the utility model is expanded on further.
A kind of duct type electric heating device of the offer of the utility model, as shown in figure 3, duct type electric heating device Including fluid channel 1, frequency-changing electric heater 2, frequency converter 3, frequency-changing electric heater 2 is arranged in fluid channel 1, and frequency converter 3 is set It puts outside fluid channel 1, frequency converter 3 is electrically connected by insulated conductor across fluid channel 1 with frequency-changing electric heater 2.Fluid leads to Road 1 includes a fixed -piping 4, and fixed -piping 4 is externally provided with thermal insulation layer 5.
Frequency-changing electric heater 2 includes metallic heating body 6, frequency conversion loop 7, insulating layer 8, and frequency conversion loop 7 passes through insulation Layer 8 is matched with metallic heating body 6.Fixed -piping 4 is matched with metallic heating body 6.
As shown in figure 4, frequency-changing electric heater 2 can be arranged to the first pattern:Metallic heating body 6 generates heat for tubular metal Body 11.Frequency conversion loop 7 is arranged on 11 outer ring of tubular metal heater by insulating layer 8.It is set inside tubular metal heater 11 There is the inside heat transfer sheet 12 of axis.Tubular metal heater 11 is connected by stent with fixed -piping 4.It is sent out in this way by tubular metal Carried out inside hot body 11 to by fluid heat.
As shown in figure 5, frequency-changing electric heater 2 can be arranged to second of pattern:
Metallic heating body 6 is tubular metal heater 11.Frequency conversion loop 7 is arranged on tubular metal by insulating layer 8 and sends out Hot 11 inner ring of body.11 outside of tubular metal heater is equipped with the outside heat transfer sheet 13 of axis.Magnetizer 14 is equipped in frequency conversion loop 7. Tubular metal heater 11 is connected by stent with fixed -piping 4.In this way by 11 outside of tubular metal heater and fix Between pipeline 4 formed to by fluid carry out heating channel, and heated.
As shown in fig. 6, frequency-changing electric heater 2 can be arranged to the third pattern:
Metallic heating body 6 is drum metallic heating body 21, and drum metallic heating body 21 includes a central shaft 22, central shaft 22 Both ends are equipped with thermally conductive sheet 23.Thermally conductive sheet 23 is equipped with dispersing type heat conduction item 24.During frequency conversion loop 7 is arranged on by insulating layer 8 In mandrel 22.22 center of central shaft is equipped with heating channel, and heat transfer sheet 25 is equipped in heating channel.Dispersing type heat conduction item 24 is with fixing Pipeline 4 is connected to reach fixed function.
In this way by carried out inside drum metallic heating body 21 to by fluid heat;And drum metal fever Formed between the outside of body 21 and fixed -piping 4 to by fluid carry out heating channel, and heated.The utility model has Beneficial effect is:By setting metallic heating body, frequency conversion loop, frequency conversion electric current is made to generate eddy current production in metallic heating body Heat amount.So as to solve the problems, such as that heat transmits bad and easy fusing in electric-heating-wire-heating in the prior art.
The specific embodiment of utility model is described above.It is to be appreciated that utility model is not limited to Above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as being given with the common mode in this field To implement;Those skilled in the art can make various deformations or amendments and make within the scope of the claims several simply to push away It drills, deform or replaces, this has no effect on the substantive content of utility model.

Claims (10)

1. a kind of duct type electric heating device, it is characterised in that:The duct type electric heating device includes fluid channel, becomes Frequency electric heater, frequency converter, the frequency-changing electric heater are arranged in the fluid channel, and the frequency converter is arranged on the stream Outside body channel, the frequency converter is electrically connected by insulated conductor across the fluid channel with the frequency-changing electric heater;
The frequency-changing electric heater includes metallic heating body, frequency conversion loop, insulating layer, and the frequency conversion loop passes through described exhausted Edge layer is matched with the metallic heating body.
2. a kind of duct type electric heating device as described in claim 1, it is characterised in that:The metallic heating body is tubulose Metallic heating body.
3. a kind of duct type electric heating device as claimed in claim 2, it is characterised in that:The frequency conversion loop passes through institute It states insulating layer and is arranged on the tubular metal heater outer ring.
4. a kind of duct type electric heating device as claimed in claim 3, it is characterised in that:In the tubular metal heater Portion is equipped with the inside heat transfer sheet of axis.
5. a kind of duct type electric heating device as claimed in claim 2, it is characterised in that:The frequency conversion loop passes through institute It states insulating layer and is arranged on the tubular metal heater inner ring.
6. a kind of duct type electric heating device as claimed in claim 5, it is characterised in that:Outside the tubular metal heater Portion is equipped with the outside heat transfer sheet of axis.
7. a kind of duct type electric heating device as claimed in claim 5, it is characterised in that:It is equipped in the frequency conversion loop Magnetizer.
8. a kind of duct type electric heating device as described in claim 1, it is characterised in that:The metallic heating body is drum Metallic heating body, the drum metallic heating body include a central shaft, and the central shaft both ends are equipped with thermally conductive sheet;
The thermally conductive sheet is equipped with dispersing type heat conduction item;
The frequency conversion loop is arranged on by the insulating layer on the central shaft.
9. a kind of duct type electric heating device as claimed in claim 8, it is characterised in that:The center axis center, which is equipped with, to be added The passage of heat, the heating channel is interior to be equipped with heat transfer sheet.
10. a kind of duct type electric heating device as described in claim 1, it is characterised in that:The fluid channel includes one Fixed -piping, the fixed -piping are externally provided with thermal insulation layer;The fixed -piping is matched with the metallic heating body.
CN201721669783.8U 2017-12-05 2017-12-05 A kind of duct type electric heating device Active CN207531113U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721669783.8U CN207531113U (en) 2017-12-05 2017-12-05 A kind of duct type electric heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721669783.8U CN207531113U (en) 2017-12-05 2017-12-05 A kind of duct type electric heating device

Publications (1)

Publication Number Publication Date
CN207531113U true CN207531113U (en) 2018-06-22

Family

ID=62577967

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721669783.8U Active CN207531113U (en) 2017-12-05 2017-12-05 A kind of duct type electric heating device

Country Status (1)

Country Link
CN (1) CN207531113U (en)

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GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 201612 room 702-1, No. 668, Xinzhuan Road, Songjiang high tech park, Caohejing Development Zone, Songjiang District, Shanghai

Patentee after: Shanghai Hualiang New Energy Technology Co., Ltd

Address before: 201612 room 702-1, No. 668, Xinzhuan Road, Songjiang high tech park, Caohejing Development Zone, Songjiang District, Shanghai

Patentee before: SHANGHAI HUAJING SOLAR TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder