CN109253645A - Heat energy storage and release equipment - Google Patents
Heat energy storage and release equipment Download PDFInfo
- Publication number
- CN109253645A CN109253645A CN201811334189.2A CN201811334189A CN109253645A CN 109253645 A CN109253645 A CN 109253645A CN 201811334189 A CN201811334189 A CN 201811334189A CN 109253645 A CN109253645 A CN 109253645A
- Authority
- CN
- China
- Prior art keywords
- heat
- energy storage
- accumulation member
- heat dissipation
- thermal energy
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 33
- 230000017525 heat dissipation Effects 0.000 claims abstract description 74
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000009825 accumulation Methods 0.000 claims description 111
- 239000011449 brick Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000005338 heat storage Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 229920003266 Leaf® Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Central Heating Systems (AREA)
Abstract
The invention discloses a heat energy storage and release device, which comprises a shell and a heat storage part arranged in the shell, wherein the top of the shell is provided with an air outlet, the bottom of the shell is provided with an air inlet, the heat storage part is provided with a main heat dissipation channel, two ends of the main heat dissipation channel are respectively communicated with the air outlet and the air inlet, the heat storage part is also provided with an auxiliary heat dissipation channel, and two ends of the auxiliary heat dissipation channel are respectively communicated with the air outlet and the air inlet. According to the invention, after entering from the air inlet, the air can also take away the heat of the heat storage part when passing through the main heat dissipation channel and the auxiliary heat dissipation channel, and then flows out from the air outlet to release heat indoors, so that through the arrangement of the auxiliary heat dissipation channel, heat exchange and conduction can be carried out between the air and the heat storage part through the auxiliary heat dissipation channel, the contact area between the air and the heat storage part is increased, and thus the heat conductivity is enhanced, the heat can be released more fully, the heating effect is improved, and the user experience is improved.
Description
Technical field
The present invention relates to heating system technical fields, more particularly to a kind of thermal energy storage release device.
Background technique
Accumulated electric heater is that northern coal changes common a kind of heating system in electricity.It is used in night power grid low-valley interval
Low-price electricity can be carried out fever and by heat storage.Power grid peak period on daytime, by release night storage heat come into
Row heating, without accessing power grid, to achieve the purpose that reduce heat cost and balance network load.
Existing accumulated electric heater, in accumulation of heat and exothermic process, heat dissipation channel is single, causes heat complete
It is discharged from heat liberation port, heating effect is undesirable, poor user experience.
Summary of the invention
The purpose of the present invention is to provide a kind of thermal energy storage release devices, heat can be made to discharge more abundant,
Improve heating effect.
The technical solution of the present invention is as follows: providing a kind of thermal energy storage release device, including shell, setting are in the shell
Heat accumulation member, the cover top portion be equipped with air outlet, the outer casing bottom be equipped with air inlet, the heat accumulation member be equipped with main heat dissipation
Channel, the both ends of the main heat dissipation channel are respectively communicated with the air outlet and air inlet, and auxiliary is additionally provided in the heat accumulation member and is dissipated
The both ends of the passage of heat, the auxiliary heat dissipation channel are respectively communicated with the air outlet and air inlet.
The heat accumulation member is made of two parts being oppositely arranged, and it is logical that the main heat dissipation is formed between described two parts
Road is equipped with the auxiliary heat dissipation channel on each part.
Each part of the heat accumulation member is made of even number heat accumulation member unit, and the heat accumulation member unit of described two parts
Quantity is equal, and the even number heat accumulation member unit is divided into upper layer and lower layer and stacks, and each heat accumulation member unit is equipped with auxiliary heat dissipation
Through-hole, the auxiliary heat dissipation through-hole on upper layer and lower layer heat accumulation member unit are connected to form the auxiliary heat dissipation channel.
The heat accumulation member unit is gitter brick.
Each part of the heat accumulation member is made of odd number heat accumulation member unit, and the heat accumulation member unit of described two parts
Quantity is equal, and the odd number heat accumulation member unit is divided into the stacking of upper, middle and lower three and puts, and each heat accumulation member unit is equipped with auxiliary and dissipates
Heat through-hole, the auxiliary heat dissipation through-hole on three layers of heat accumulation member unit of upper, middle and lower are sequentially communicated to form the auxiliary heat dissipation channel.
Two parts of the heat accumulation member are one piece of gitter brick.
The heat accumulation member is one piece of gitter brick.
The heating element for heating to heat accumulation member is equipped in the main heat dissipation channel.
The heating element is heating tube.
The upper end in the auxiliary heat dissipation channel is connected to by exhaust air flue with air outlet, the lower end in the auxiliary heat dissipation channel
It is connected to by wind inlet channel with air inlet.
The upper end of the main heat dissipation channel is connected to by exhaust air flue with air outlet, and the lower end of the main heat dissipation channel passes through
Wind inlet channel is connected to air inlet.
Insulating layer is equipped between the front end of the heat accumulation member, rear end, left end, right end, top and bottom and shell.
The insulating layer uses heat-preservation cotton.
The shell includes front side board, back side panel, left plate, right side plate, top plate and bottom plate, and the air outlet setting is being pushed up
On plate, the air inlet is arranged on bottom plate.
The air door for being used to open and covering the air outlet is additionally provided at the top of the shell.
The air door is spindle rotationally arranged in the top of the shell, and the air door is opened and covered in the course of rotation
The air outlet.
The air door is mounted on the top of shell by hinge.
The air door is a cover board.
The thermal energy storage release device is accumulated electric heater.
In the present invention air from air inlet entrance after can also pass through main heat dissipation channel and auxiliary heat dissipation channel when and band
The heat of heat accumulation member is walked, then is flowed out from air outlet to indoor heat release, passes through setting auxiliary heat dissipation channel, air and heat accumulation member in this way
Between can also carry out heat exchange and conduction by auxiliary heat dissipation channel, increase the contact area of air and heat accumulation member, from
And heat conductivity is enhanced, heat is discharged more sufficiently, heating effect is improved, promotes user experience.
Detailed description of the invention
Fig. 1 is the front schematic view of thermal energy storage release device in the embodiment of the present invention.
Fig. 2 be Fig. 1 in A-A to cross-sectional view.
Fig. 3 is the enlarged drawing in Fig. 2 at B.
Fig. 4 is schematic diagram seen from above inside thermal energy storage release device in the embodiment of the present invention.
Fig. 5 is the structure chart of heat accumulation member unit in the embodiment of the present invention.
Fig. 6 is the state diagram that air door opens air outlet in the embodiment of the present invention.
Fig. 7 is the state diagram that wind gate cover lives air outlet in the embodiment of the present invention.
Specific embodiment
As described in Fig. 1 to Fig. 3, the thermal energy storage release device proposed in the embodiment of the present invention, including shell 10, setting exist
Heat accumulation member in shell 10, air outlet 11 is equipped at the top of shell 10, and 10 bottom of shell is equipped with air inlet 12.Heat accumulation member is equipped with master
Heat dissipation channel 20, the both ends of main heat dissipation channel 20 are respectively communicated with one end of the i.e. main heat dissipation channel 20 of air outlet 11 and air inlet 12(
It is connected to air outlet 11, the other end of main heat dissipation channel 20 is connected to air inlet 12).
Heating element 80 is equipped in main heat dissipation channel 20, heating element 80 is used to (convert electrical energy into heat accumulation member heating
Inside thermal energy storage to heat accumulation member), heating element 80 is heating tube.
Shell 10 includes front side board 13, back side panel 14, left plate (not marking in figure), right side plate (not marking in figure), top
Plate 15 and bottom plate 16, air outlet 11 are arranged on top plate 15, and air inlet 12 is arranged on bottom plate 16, and the bottom of shell 10 is also installed
There is support leg 40.
Between the front end and front side board 13 of heat accumulation member, between the rear end of heat accumulation member and back side panel 14, the left end of heat accumulation member with
Between left plate, between the right end and right side plate of heat accumulation member, between the top of the heat accumulation member and top plate 15 and bottom end of heat accumulation member
Insulating layer 50 is equipped between bottom plate 16, insulating layer 50 uses heat-preservation cotton.
Insulating layer 50 between the top and top plate 15 of heat accumulation member is equipped with exhaust air flue 60, the bottom end of heat accumulation member and bottom plate
Insulating layer 50 between 16 is equipped with wind inlet channel 70.The upper end of main heat dissipation channel 20 is connected by exhaust air flue 60 and air outlet 11
Logical, the lower end of main heat dissipation channel 20 is connected to by wind inlet channel 70 with air inlet 12.
Top plate 15 be equipped with outlet grid 30, outlet grid 30 be used for lateral outlet air, existing air stream through route be air from into
Air port 12 enter after by when main heat dissipation channel 20 with take away the heat of heat accumulation member, then from air outlet 11 flow into outlet grid 30 backward
Indoor heat release.
As shown in Fig. 2, Fig. 4 and Fig. 5, in order to enable heat release is more abundant, heating effect is improved, is gone back in heat accumulation member
Equipped with auxiliary heat dissipation channel, the both ends in auxiliary heat dissipation channel are respectively communicated with air outlet 11 and air inlet 12(i.e. auxiliary heat dissipation channel
One end be connected to air outlet 11, the other end in auxiliary heat dissipation channel is connected to air inlet 12).
Heat accumulation member is provided at least one main heat dissipation channel and at least one auxiliary heat dissipation channel.
In the present embodiment, likewise, the upper end in auxiliary heat dissipation channel is connected to by exhaust air flue 60 with air outlet 11, assist
The lower end of heat dissipation channel is connected to by wind inlet channel 70 with air inlet 12, and main heat dissipation channel and auxiliary heat dissipation channel are along vertical side
To extension.
Heat accumulation member is made of two parts being oppositely arranged, and main heat dissipation channel 20 is formed between two parts, heat accumulation member
Two parts are arranged from front to back, and auxiliary heat dissipation channel is equipped on each part.Each part of heat accumulation member is stored by even number
Warmware unit 90 is constituted, and 90 quantity of heat accumulation member unit of two parts is equal, and even number heat accumulation member unit 90 is divided into up and down
It stacks for two layers, each heat accumulation member unit 90 is equipped with auxiliary heat dissipation through-hole 91, and the auxiliary on upper layer and lower layer heat accumulation member unit 90 dissipates
The connection of heat through-hole 91 forms auxiliary heat dissipation channel, and heat accumulation member unit is gitter brick.An auxiliary on upper layer heat accumulation member unit 90
Thermal vias 91 is connected to an auxiliary heat dissipation through-hole 91 on lower layer heat accumulation member unit 90 and forms an auxiliary heat dissipation channel.
Air after the entrance of air inlet 12 can also when passing through auxiliary heat dissipation channel with take away the heat of heat accumulation member, then from
Air outlet flows into after outlet grid to indoor heat release, can be in this way by the way that auxiliary heat dissipation channel is arranged, between air and heat accumulation member
Heat exchange and conduction are carried out by auxiliary heat dissipation channel, the contact area of air and heat accumulation member is increased, to enhance heat
Conductivity is measured, heat is discharged more sufficiently, heating effect is improved, promotes user experience.
In the present embodiment, heat accumulation member is made of 12 heat accumulation member units 90, and each part of heat accumulation member is by six accumulation of heats
Part unit 90 is constituted, and six heat accumulation member units 90 of each part are divided into upper layer and lower layer, every layer of three heat accumulation member unit 90.Certainly
Six heat accumulation member units 90 of each part can also be divided into three layers of upper, middle and lower, every layer of two heat accumulation member unit 90.Heat accumulation member
It can also be made of 16 heat accumulation member units 90, each part of heat accumulation member is made of eight heat accumulation member units 90, each portion
The eight heat accumulation member units 90 divided are divided into upper layer and lower layer, every layer of four heat accumulation member unit 90.
As shown in Figures 2 and 3, top plate 15 is equipped with the air door 100 for being used to open and covering air outlet 11, and air door 100 is
One cover board.Air door 100 is spindle rotationally arranged on top plate 15, and air outlet 11 is opened and covered in the course of rotation to air door 100.
In the process of accumulation of heat, air door 100 covers air outlet 11, and after accumulation of heat is abundant, air door 100 opens air outlet 11, carries out heat release.
As shown in Figure 6 and Figure 7, in the present embodiment, air door 100 is mounted on top plate 15 by hinge 300.
As shown in Figure 6 and Figure 7, in order to realize that cover board can automatically open and cover air outlet, being additionally provided on top plate 15 makes wind
Door 100 rotation bimetal leafs 200, bimetal leaf 200 after powered up can with air themperature rise and upwarp, after power-off with
Air themperature decline and be bent downwardly.
As shown in fig. 6, the heat of gitter brick has been saturated after thermal energy storage release device accumulation of heat terminates, it is hot at this time
Release device, which can be stored, to be powered off, and bimetal leaf 200 is bent downwardly as air themperature declines, to push air door 100
One end so that air door 100 is rotated up and is opened air outlet, discharge heat；As shown in fig. 7, in the process of accumulation of heat, with air
Temperature rises, and bimetal leaf 200 is upwarped as air themperature rises, and decontrols one end of air door 100, air door 100 is because of gravity meeting
It rotates down and covers air outlet, avoid heat loss.
In the present embodiment, thermal energy storage release device is accumulated electric heater.
In another embodiment, each part of heat accumulation member can also be made of odd number heat accumulation member unit, and two parts
Heat accumulation member element number it is equal, odd number heat accumulation member unit be divided into upper, middle and lower three stacking put, set on each heat accumulation member unit
There is auxiliary heat dissipation through-hole, the auxiliary heat dissipation through-hole on three layers of heat accumulation member unit of upper, middle and lower is sequentially communicated to form auxiliary heat dissipation channel.
For example, each part of heat accumulation member is made of nine heat accumulation member units, nine heat accumulation member units of each part are divided into upper, middle and lower
Three stackings are put, every layer of three heat accumulation member unit；Each part of heat accumulation member can also be made of 15 heat accumulation member units, each portion
The 15 heat accumulation member units divided are divided into the stacking of upper, middle and lower three and put, and every layer of five heat accumulation member unit, heat accumulation member unit is gitter brick.
It should be noted that two parts of heat accumulation member can also be one piece of gitter brick.Certainly heat accumulation member may be
One piece of gitter brick.
Above specific embodiment is only to the design illustrated the present invention, and those skilled in the art are in this hair
Various deformation and variation can be made under bright design, these deformations and variation are included within protection scope of the present invention.
Claims (19)
1. a kind of thermal energy storage release device, including shell (10), the heat accumulation member being arranged in the shell (10), the shell
(10) top is equipped with air outlet (11), and shell (10) bottom is equipped with air inlet (12), and the heat accumulation member is equipped with main heat dissipation
The both ends in channel (20), the main heat dissipation channel (20) are respectively communicated with the air outlet (11) and air inlet (12), and feature exists
In being additionally provided with auxiliary heat dissipation channel in the heat accumulation member, the both ends in the auxiliary heat dissipation channel are respectively communicated with the air outlet
(11) and air inlet (12).
2. thermal energy storage release device according to claim 1, which is characterized in that the heat accumulation member by be oppositely arranged two
A part is constituted, and forms the main heat dissipation channel (20) between described two parts, and the auxiliary is equipped on each part and is dissipated
The passage of heat.
3. thermal energy storage release device according to claim 2, which is characterized in that each part of the heat accumulation member is by idol
Several heat accumulation member units (90) are constituted, and heat accumulation member unit (90) quantity of described two parts is equal, the even number accumulation of heat
Part unit (90) is divided into upper layer and lower layer and stacks, and each heat accumulation member unit (90) is equipped with auxiliary heat dissipation through-hole (91), and upper and lower two
Auxiliary heat dissipation through-hole (91) connection on layer heat accumulation member unit (90) forms the auxiliary heat dissipation channel.
4. thermal energy storage release device according to claim 3, which is characterized in that the heat accumulation member unit (90) is accumulation of heat
Brick.
5. thermal energy storage release device according to claim 2, which is characterized in that each part of the heat accumulation member is by surprise
Several heat accumulation member units (90) are constituted, and heat accumulation member unit (90) quantity of described two parts is equal, the odd number accumulation of heat
Part unit (90) be divided into upper, middle and lower three stacking put, each heat accumulation member unit (90) be equipped with auxiliary heat dissipation through-hole (91), it is upper in
Auxiliary heat dissipation through-hole (90) on lower three layers of heat accumulation member unit (90) is sequentially communicated to form the auxiliary heat dissipation channel.
6. thermal energy storage release device according to claim 2, which is characterized in that two parts of the heat accumulation member are
One piece of gitter brick.
7. thermal energy storage release device according to claim 1, which is characterized in that the heat accumulation member is one piece of gitter brick.
8. thermal energy storage release device according to any one of claim 1 to 7, which is characterized in that the main heat dissipation is logical
The heating element (80) for heating to heat accumulation member is equipped in road (20).
9. thermal energy storage release device according to claim 8, which is characterized in that the heating element (80) is heating
Pipe.
10. thermal energy storage release device according to claim 1, which is characterized in that the upper end in the auxiliary heat dissipation channel
It is connected to by exhaust air flue (60) with air outlet (11), the lower end in the auxiliary heat dissipation channel passes through wind inlet channel (70) and air inlet
Mouth (12) connection.
11. thermal energy storage release device according to claim 1, which is characterized in that the main heat dissipation channel (20) it is upper
End is connected to by exhaust air flue (60) with air outlet (11), and the lower end of the main heat dissipation channel passes through wind inlet channel (70) and air inlet
Mouth (12) connection.
12. thermal energy storage release device according to claim 1, which is characterized in that the front end of the heat accumulation member, rear end,
Insulating layer (50) are equipped between left end, right end, top and bottom and shell (10).
13. thermal energy storage release device according to claim 12, which is characterized in that the insulating layer (50) is using heat preservation
Cotton.
14. thermal energy storage release device according to claim 1, which is characterized in that the shell (10) includes front side board
(13), back side panel (14), left plate, right side plate, top plate (15) and bottom plate (16), the air outlet (11) are arranged in top plate (15)
On, the air inlet (12) is arranged on bottom plate (16).
15. thermal energy storage release device according to claim 1, which is characterized in that the top of the shell (10) is also set
There is the air door (100) for being used to open and covering the air outlet (11).
16. thermal energy storage release device according to claim 15, which is characterized in that the air door (100) is rotatable
Top in the shell (10) is set, and the air outlet (11) are opened and cover in the course of rotation to the air door (100).
17. thermal energy storage release device according to claim 16, which is characterized in that the air door (100) passes through hinge
(300) it is mounted on the top of shell (10).
18. thermal energy storage release device described in any one of 5 to 17 according to claim 1, which is characterized in that the air door
It (100) is a cover board.
19. thermal energy storage release device according to claim 1, which is characterized in that the thermal energy storage release device is
Accumulated electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334189.2A CN109253645A (en) | 2018-11-09 | 2018-11-09 | Heat energy storage and release equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334189.2A CN109253645A (en) | 2018-11-09 | 2018-11-09 | Heat energy storage and release equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109253645A true CN109253645A (en) | 2019-01-22 |
Family
ID=65043023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811334189.2A Withdrawn CN109253645A (en) | 2018-11-09 | 2018-11-09 | Heat energy storage and release equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109253645A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017525A (en) * | 2019-05-23 | 2019-07-16 | 河北秦暖新能源科技有限公司 | A kind of accumulated electric heater of heat storage pouring molding |
| CN110186105A (en) * | 2019-06-18 | 2019-08-30 | 珠海格力电器股份有限公司 | Heat storage type electric heater |
| CN110553302A (en) * | 2019-09-27 | 2019-12-10 | 河北秦暖新能源科技有限公司 | Heat-storage directly-heated multifunctional stove for heating and cooking |
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| CN201615542U (en) * | 2010-02-11 | 2010-10-27 | 宁波市鄞州红杉树电器制造有限公司 | Auxiliary convection heat accumulating type heater |
| US20100326624A1 (en) * | 2009-06-26 | 2010-12-30 | Trane International Inc. | Blow Through Air Handler |
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| EP3379191A1 (en) * | 2017-03-20 | 2018-09-26 | Lumenion GmbH | Thermal storage device and method for operating a thermal storage device |
| KR101909574B1 (en) * | 2017-04-11 | 2018-10-18 | 지용남 | Heating apparatus using heat medium electric boiler |
| CN209116841U (en) * | 2018-11-09 | 2019-07-16 | 珠海格力电器股份有限公司 | Heat energy storage and release equipment |
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| CN101344315A (en) * | 2008-05-14 | 2009-01-14 | 北京儒田科技有限公司 | Convection type electric heating tube heat accumulation electric heater |
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| CN201615542U (en) * | 2010-02-11 | 2010-10-27 | 宁波市鄞州红杉树电器制造有限公司 | Auxiliary convection heat accumulating type heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110186105A (en) * | 2019-06-18 | 2019-08-30 | 珠海格力电器股份有限公司 | Heat storage type electric heater |
| CN110553302A (en) * | 2019-09-27 | 2019-12-10 | 河北秦暖新能源科技有限公司 | Heat-storage directly-heated multifunctional stove for heating and cooking |
| CN110553302B (en) * | 2019-09-27 | 2024-06-07 | 河北秦桥热力有限公司 | Heat accumulating and direct heating type multifunctional stove for heating and cooking |
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Application publication date: 20190122 |