CN210601843U - Heat storage type electric heater - Google Patents
Heat storage type electric heater Download PDFInfo
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- CN210601843U CN210601843U CN201920555934.XU CN201920555934U CN210601843U CN 210601843 U CN210601843 U CN 210601843U CN 201920555934 U CN201920555934 U CN 201920555934U CN 210601843 U CN210601843 U CN 210601843U
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- 238000005338 heat storage Methods 0.000 title description 9
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 239000012071 phase Substances 0.000 claims description 90
- 230000017525 heat dissipation Effects 0.000 claims description 32
- 230000001172 regenerating effect Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 239000012782 phase change material Substances 0.000 claims description 11
- 239000012074 organic phase Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 2
- 239000006262 metallic foam Substances 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 38
- 238000010438 heat treatment Methods 0.000 abstract description 25
- 230000007704 transition Effects 0.000 abstract description 20
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 239000011449 brick Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model relates to an electric heater technical field specifically provides a heat accumulation formula electric heater, include: the body comprises a heat-insulating shell and a heat accumulator arranged in the heat-insulating shell, wherein the heat-insulating shell is provided with at least one heat release end, and heat stored by the heat accumulator is released from the heat release end; and the phase change layer is arranged at the heat release end of the heat insulation shell, and the heat stored by the heat accumulator is dissipated through the phase change layer. Through increasing the phase transition layer, can realize the isothermal release to heat accumulator storage heat, slow down the heat release rate of electric heater, improve exothermic travelling comfort, shorten next heating time simultaneously, reduce the energy consumption.
Description
Technical Field
The utility model relates to an electric heater technical field, concretely relates to heat accumulation formula electric heater.
Background
The heat accumulating type electric heater can utilize electric energy in a low-ebb period of a power grid at night, electric heat energy conversion and storage are completed within 6-8 hours, and stored heat is released in modes of radiation, convection and the like in a peak period of the power grid, so that 24-hour indoor heating in the whole day is realized. The heat accumulating type electric heater is low in operation cost, and can cut peaks and fill valleys of a power grid, so that the heat accumulating type electric heater has a wide application prospect.
The existing heat accumulating type electric heater can be divided into a phase change heat accumulating electric heater and a sensible heat accumulating electric heater, the phase change heat accumulating electric heater comprises an intermediate temperature phase change heat accumulating electric heater and a high temperature phase change heat accumulating electric heater, the intermediate temperature phase change heat accumulating electric heater is made of an intermediate temperature phase change material, the heat accumulating density of the electric heater is small, and the heating requirement of the whole day can not be met. High temperature phase change heat accumulation electric heater adopts high temperature phase change material to make, and latent heat accumulation density is big, can satisfy the heating demand, but high temperature phase change material is expensive, leads to the electric heater cost higher, and phase change material has certain degree corrosivity to equipment in the degeneration of the hot physical properties of circulation phase change in-process simultaneously, influences equipment life-span. Therefore current comparatively popular is sensible heat accumulation electric heater, and sensible heat accumulation electric heater relies on the sensible heat of heat accumulation brick to realize the heat accumulation, and current sensible heat accumulation electric heater exothermal in-process heat release rate decay is fast, leads to the thermal comfort relatively poor.
SUMMERY OF THE UTILITY MODEL
For solving the fast technical problem of current heat accumulation electric heater heat release rate decay, the utility model provides a heat accumulation type electric heater.
The utility model provides a heat accumulation formula electric heater, include:
the body comprises a heat-insulating shell and a heat accumulator arranged in the heat-insulating shell, wherein the heat-insulating shell is provided with at least one heat release end, and heat stored by the heat accumulator is released from the heat release end; and
and the phase change layer is arranged at the heat release end of the heat insulation shell, and the heat stored by the heat accumulator is dissipated through the phase change layer.
In some embodiments, the regenerative electric heater further includes:
the buffer heat transfer layer is arranged between the phase change layer and the heat accumulator, and the heat stored by the heat accumulator is transferred to the phase change layer through the buffer heat transfer layer.
In some embodiments, at least one side of the thermal shell has an open end, the open end forming the heat release end, and the phase change layer is disposed in a shape-fitting manner at the heat release end.
In some embodiments, the heat-insulating shell is a cavity structure with one open side, and a heat dissipation cavity is arranged on the outer side of the phase change layer away from the heat accumulator and provided with an air inlet and an air outlet.
In some embodiments, the heat dissipation cavity directly contacts with the outer side wall of the phase change layer, the air inlet is formed in the lower end of the heat dissipation cavity, and the air outlet is formed in the upper end of the heat dissipation cavity.
In some embodiments, an insulating layer is arranged on the outer side of the heat dissipation cavity far away from the phase change layer.
In some embodiments, the outlet is provided with an adjustable damper.
In some embodiments, the phase change layer includes a shell having a cavity therein filled with a composite phase change material.
In some embodiments, the phase change layer further comprises a fin structure disposed within the cavity of the housing.
In some embodiments, the composite phase change material is compounded from an organic phase change material with at least one of:
metal foam, expanded graphite.
In some embodiments, the phase transition temperature of the organic phase change material is in a range of 100 to 300 ℃.
The technical scheme of the utility model, following beneficial effect has:
1) the utility model provides a heat accumulation formula electric heater, including body and an at least phase transition layer, the body includes the lagging casing and locates the heat accumulator in the lagging casing, the lagging casing has an at least end of giving out heat, thereby make the heat that the heat accumulator stored can follow the end of giving out heat and spill out, the end of giving out heat is located to the phase transition layer, the heat that the heat accumulator stored is when spilling out, spill out from the end of giving out heat after the phase transition layer earlier, through increasing the phase transition layer, can realize the isothermal release to the heat accumulator heat of storage, slow down the heat release rate of electric heater, improve exothermic travelling comfort, shorten next heat time simultaneously, reduce the energy consumption.
2) The utility model provides a heat accumulation formula electric heater still includes the buffering heat transfer layer, locates between phase change layer and the heat accumulator, and the heat that the heat accumulator stored transmits to the phase change layer through buffering heat transfer layer, scatters through the phase change layer again, through setting up buffering heat transfer layer, reduces the heat transfer temperature of heat accumulator to the phase change layer, maintains exothermic temperature at phase change layer phase transition interval, further prolongs constant temperature heat release time, improves exothermic travelling comfort.
3) The utility model provides a heat accumulation formula electric heater, lagging casing are the open cavity structures in one side, and the opening end forms exothermic end to increase heat release area promotes the heating effect of heat accumulation formula electric heater.
4) The utility model provides a heat accumulation formula electric heater, the outside that heat accumulator was kept away from to the phase transition layer is equipped with the heat dissipation chamber, and the heat dissipation chamber has air intake and air outlet, and the lateral wall direct contact of heat dissipation chamber and phase transition layer improves heat transfer efficiency, and heat dissipation chamber lower extreme is located to the air intake, and heat dissipation chamber upper end is located to the air outlet to utilize chimney effect to strengthen the heat dissipation, improve the radiating effect.
5) The utility model provides a heat accumulation formula electric heater, the outside that phase transition layer was kept away from in the heat dissipation chamber is equipped with the heat preservation, further keeps warm to the heat dissipation chamber, prevents that the heat from scattering and disappearing too fast, further reduces exothermic decay rate.
6) The utility model provides a heat accumulation formula electric heater, air outlet are equipped with adjustable air door to can adjust the heat release.
7) The utility model provides a heat accumulation formula electric heater, phase change layer include the casing, and the casing has the cavity, packs composite phase change material in the cavity, and composite phase change material is formed by organic phase change material and foam metal, expanded graphite etc. are compound, strengthens phase change layer's heat transfer capacity, guarantees the phase change in-situ temperature uniformity, improves exothermic stability.
8) The utility model provides a heat accumulation formula electric heater, phase transition layer still include the fin structure, and in the cavity of casing was located to the fin structure, further improved phase transition layer heat transfer ability, guarantee phase transition in situ temperature uniformity, improve exothermic stability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective sectional structure view of a regenerative electric heater according to some embodiments of the present invention.
Fig. 2 is a schematic side view of a cross-sectional structure of a regenerative electric heater according to some embodiments of the present invention.
Fig. 3 is a graph showing the heat release curve of the regenerative electric heater according to some embodiments of the present invention.
Fig. 4 is a schematic side view of a cross-sectional structure of a regenerative electric heater according to other embodiments of the present invention.
Fig. 5 is a schematic side view of a cross-sectional structure of a regenerative electric heater according to some embodiments of the present invention.
Description of reference numerals:
10-a heat-insulating shell; 11-an air inlet; 12-an air outlet; 20-a heat accumulator; 30-a heating device; 40-a phase change layer; 41-a first phase change layer; 42-a second phase change layer; 50-a buffer heat transfer layer; 60-a heat dissipation cavity; 70-heat insulation layer.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some examples of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The utility model provides a heat accumulation formula electric heater can be used to current all kinds of heat accumulation formula electric heaters, realizes through the phase transition layer that the isothermal of heat accumulation formula electric heater is exothermic, has shown in figure 1, figure 2 according to the utility model discloses heat accumulation formula electric heater among some embodiments.
As shown in fig. 1 and fig. 2, in some embodiments, the present invention provides a heat accumulating type electric heater, which comprises a body and a phase change layer 40, wherein the body comprises an insulating casing 10 and a heat accumulator 20 disposed in the insulating casing 10. The insulated housing 10 may be of any shape suitable for the implementation, and in the implementation shown in fig. 1 and 2, the insulated housing 10 is a regular rectangular box shape for ease of handling and use. The front side of the thermal insulation shell 10 is an open structure, the heat accumulator 20 is disposed in the cavity of the thermal insulation shell 10 in a shape-fitting manner, and the heat accumulator 20 may be, for example, a magnesium iron heat accumulation brick, and stores heat by sensible heat of the heat accumulation brick. In some embodiments, the heat storage brick is provided with a channel inside, the heating device 30 is disposed in the channel, the heating device 30 is generally an electric heating element, one end of the heating element can be electrically connected to the MCU through a power line, and the control and connection modes can be implemented by using the prior art, which is not described herein again. The heating device 30 is arranged in the heat accumulator 20, so that the heating effect is better, and uneven heating caused by the heat transfer performance of the heat accumulator 20 is avoided. It should be understood by those skilled in the art that the above-mentioned structure, connection and hardware options are only used for illustrating the present invention, and the present invention is not limited thereto, for example, the heating device 30 can also adopt other heating methods, and is disposed outside the heat storage body 20, etc.
As shown in fig. 2, the thermal insulation casing 10 includes a casing body and a thermal insulation layer disposed between the heat accumulator 20 and the casing body, the casing body is a cavity structure with one side open, the thermal insulation layer is disposed on the inner peripheral wall of the casing body, so as to insulate the heat accumulator 20 at a certain temperature, and prevent the heat stored in the heat accumulator 20 from being dissipated from the outer peripheral wall of the casing body. In some embodiments, the material of the heat insulation layer can be a calcium silicate plate, an aluminum silicate heat insulation felt, a ceramic fiber blanket and the like, and the thickness of the heat insulation layer is 30-80 mm. The front side surface of the heat insulation shell 10 is open to form a heating end of the electric heater, and due to the temperature isolation of the heat insulation layer, heat stored by the heat accumulator 20 is dissipated from the heating end, so that a user can be heated.
Continuing to refer to fig. 2, the front side of the electric heater is a heat release end, the heat release end is provided with a phase change layer 40, the phase change layer 40 is matched with the open shape of the heat release end, and the heat of the heat accumulator 20 is dissipated outwards through the phase change layer 40. Phase change refers to the phase change of a substance from one phase to another phase by heat absorption or heat release, and the substance has a constant temperature heat absorption or heat release stage during the phase change process, so that heat can be dissipated to the outside through the phase change layer 40 at a constant temperature. In the embodiment shown in fig. 2, the phase change layer 40 is a metal plate, and includes a housing, which is a metal shell with high thermal conductivity, and a cavity inside the housing, and the cavity is filled with a composite phase change material, which is formed by compounding an organic phase change material and a high thermal conductivity material, such as a foamed metal with high porosity, expanded graphite, and the like. In some embodiments, a highly thermally conductive structure, such as a fin structure, is also disposed within the phase change layer 40, and the fin structure is disposed within a cavity of the casing. The heat transfer capacity of the phase change layer 40 is enhanced through the high heat conduction material or the high heat conduction structure, the consistency of the temperature in the phase change layer 40 is ensured, and the heat release stability is improved.
In some embodiments, the phase transition temperature of the organic phase change material is in the range of 100 to 300 ℃. In traditional heat accumulation electric heater, the heat-retaining peak temperature of heat accumulator 20 is generally 600 ~ 700 ℃, and it is higher to release heat temperature in exothermic earlier stage, and it is very fast to release heat decay rate, leads to being in the time between comfortable temperature interval very short, therefore it is relatively poor to release heat the travelling comfort. And in this embodiment, locate the better heat release interval of travelling comfort through the phase transition temperature range with organic phase change material to with the interval extension of comfortable heat release, improve the heat release travelling comfort of electric heater. Preferably, in some embodiments, the thickness of the phase change layer 40 is 10 to 100 mm.
As shown in fig. 2, in some embodiments, a buffer heat transfer layer 50 is disposed between the phase change layer 40 and the heat storage body 20, a wall surface of one side of the buffer heat transfer layer 50 is in direct contact with a wall surface of the heat storage body 20, and a wall surface of the opposite side is prevented from being in direct contact with a side of the phase change layer 40, so that when the electric heater releases heat, heat of the heat storage body 20 is transferred to the phase change layer 40 through the buffer heat transfer layer 50. The heat transfer temperature of the buffer heat transfer layer 50 can be set to be 200-300 ℃, so that heat transfer buffer is performed between the phase change layer 40 and the heat accumulator 20, the heated temperature of the phase change layer 40 is in a phase change temperature range, the constant-temperature heat release time is prolonged, and the heat release comfort is further improved. The buffer heat transfer layer 50 may be a heat insulation plate made of nanofiber material, for example, and the thickness range thereof is 10-100 mm.
In some embodiments, a heat dissipation cavity 60 is disposed outside the phase change layer 40, the heat dissipation cavity 60 is formed by a cavity directly contacting with the outer wall surface of the phase change layer 40, an air inlet 11 is disposed below the heat dissipation cavity 60, an air outlet 12 is disposed above the heat dissipation cavity, and an adjustable air door is disposed at the air outlet 12. At the electric heater during operation, open adjustable air door, indoor cold air rises to become hot-air with 40 heat transfer after-poppet of phase transition layer in the heat dissipation chamber 60 of air intake 11 entering, then gets into indoorly through air outlet 12 to get warm to indoorly, and air intake 11 sets up from top to bottom with air outlet 12, and it is better to utilize the radiating effect that chimney effect made the electric heater, adjusts the amount of wind of heat transfer through adjustable air door.
Fig. 3 shows the heat dissipation temperature variation curve of the heat storage type electric heater and the heat dissipation temperature variation curve of the conventional heat storage type electric heater in some embodiments of the present invention. In fig. 3, the cross axle is the time, and the axis of ordinates is the wall temperature of the heat release end of electric heater, and the dotted line is the temperature variation curve of traditional heat accumulation formula electric heater, and the solid line does the utility model discloses heat accumulation formula electric heater's heat dissipation temperature variation curve. In the heat accumulation stage of 0 ~ 8h, the utility model discloses heat accumulation formula electric heater is the same with traditional electric heater heat time. At the exothermic stage of 8 ~ 24h, traditional electric heater heat release rate attenuates fast, and unable realization isothermal heat release, and the time that is located comfortable exothermic interval is very short, leads to exothermic travelling comfort relatively poor, and the utility model discloses the electric heater realizes isothermal heat release because phase transition 40 of phase transition layer, and exothermic decay slows down, and is located comfortable exothermic temperature interval's time length, and thermal comfort is better to when first 24 h's interval finishes, its surplus heat is more. In the second heat cycle of inhaling the heat release, in 24 ~ 32 h's heat accumulation stage, can see out, traditional electric heater still needs 8 hours heating time, and the utility model discloses the electric heater is because the surplus heat is many, only needs 6 hours heating time to accomplish the heat accumulation, reduces two hours heating time, reduces the heating energy consumption. At 32 ~ 48 h's exothermic stage, the utility model discloses an electric heater heat release time is longer, and exothermic decay rate is slower, and thermal comfort is better.
The structure of the heat accumulating type electric heater in some embodiments of the present invention is described above, and the working principle thereof is further explained below.
The utility model discloses a heat accumulation formula electric heater utilizes the electric load underestimate time night when using, and heating device 30 switch on power heats heat accumulator 20, and heat accumulator 20 utilizes the thermal capacity of self, rises through self temperature and comes the heat accumulation. When the electric heater is exothermic on daytime, open the adjustable air door of electric heater for indoor cold air gets into heat dissipation chamber 60 through electric heater bottom air intake 11, and it is hot-air to heat up with the wall heat transfer of phase change layer 40 after, utilizes the chimney effect to flow to indoor from air outlet 12, realizes indoor heating. The electric heater is at exothermic in-process, and phase change layer 40 can be with exothermic temperature maintenance between the constant temperature region because self phase transition to realize that the isothermal is exothermic, and exothermic decay rate is slow, and exothermic effect is better. Meanwhile, the user can manually adjust the heat release of the electric heater by adjusting the adjustable air door, so that the electric heater is more convenient to use.
The aforesaid is right the structure and the theory of operation of the heat accumulation formula electric heater in some embodiments of the present invention have been explained, on the basis of the above-mentioned embodiments, the present invention discloses a heat accumulation formula electric heater can also have other alternative embodiments.
As shown in fig. 4, in some alternative embodiments, the outer side of the heat dissipation cavity 60 is further provided with a heat insulation layer 70, and the heat insulation layer 70 insulates the outer side wall of the heat dissipation cavity 60, so as to prevent heat from being dissipated from the outer wall of the heat dissipation cavity 60, and improve the heat release effect of the electric heater.
In other alternative embodiments, as shown in FIG. 5, the phase change layer 40 includes a first phase change layer 41 and a second phase change layer 42, and two phase change layers with different phase change temperatures are provided to prolong the phase change time and improve the heat release effect. In addition, the number of the phase change layers 40 may be multiple, which is not limited by the present invention.
In some alternative embodiments, the utility model discloses the relative both sides face of electric heater can be located to the end of giving out heat of electric heater, sets up open structure formation two ends of giving out heat promptly in the front and back both sides face of heat preservation casing to can realize two-sidedly releasing heat, be suitable for more heating scenes. Further, it is also possible to provide a multi-side heat release according to the heat release effect, which is not limited thereto.
In some alternative embodiments, the utility model discloses the structure of electric heater can also be other any structures that are suitable for to implement, and for example the structure and the wind direction of air intake and air outlet can be established to other forms, and heating device can be other heating methods, and the shape of electric heater also is not restricted to rectangle box etc. this, the utility model discloses do not do the restriction to this.
It should be understood that the above embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (11)
1. A heat accumulating type electric heater is characterized by comprising:
the heat-preserving box comprises a body, a heat-preserving shell (10) and a heat accumulator (20) arranged in the heat-preserving shell (10), wherein the heat-preserving shell (10) is provided with at least one heat-releasing end, and heat stored in the heat accumulator (20) is released from the heat-releasing end; and
the phase change layer (40) is arranged at the heat release end of the heat preservation shell (10), and the heat stored in the heat accumulator (20) is dissipated through the phase change layer (40).
2. A regenerative electric heater as claimed in claim 1, further comprising:
the buffer heat transfer layer (50) is arranged between the phase change layer (40) and the heat accumulator (20), and the heat stored in the heat accumulator (20) is transferred to the phase change layer (40) through the buffer heat transfer layer (50).
3. A regenerative electric heater as claimed in claim 1 or claim 2, characterised in that,
at least one side of the heat preservation shell (10) is provided with an opening, the opening end forms the heat release end, and the phase change layer (40) is arranged at the heat release end in a shape matching mode.
4. A regenerative electric heater as claimed in claim 3,
heat preservation shell (10) are the open cavity structures in one side, phase change layer (40) are kept away from the outside of heat accumulator (20) is equipped with heat dissipation chamber (60), heat dissipation chamber (60) have air intake (11) and air outlet (12).
5. A regenerative electric heater as claimed in claim 4,
the heat dissipation cavity (60) is in direct contact with the outer side wall of the phase change layer (40), the air inlet (11) is formed in the lower end of the heat dissipation cavity (60), and the air outlet (12) is formed in the upper end of the heat dissipation cavity (60).
6. A regenerative electric heater as claimed in claim 5,
and a heat insulation layer (70) is arranged on the outer side of the heat dissipation cavity (60) far away from the phase change layer (40).
7. A regenerative electric heater as claimed in any of claims 4 to 6,
the air outlet (12) is provided with an adjustable air door.
8. A regenerative electric heater as claimed in any of claims 1 or 2 or 4 to 6,
the phase change layer (40) comprises a shell, wherein a cavity is formed in the shell, and composite phase change materials are filled in the cavity.
9. A regenerative electric heater as claimed in claim 8,
the phase change layer further comprises a fin structure, and the fin structure is arranged in the cavity of the shell.
10. A regenerative electric heater according to claim 8, characterised in that the composite phase change material is formed by compounding an organic phase change material with at least one of:
metal foam, expanded graphite.
11. A regenerative electric heater as claimed in claim 10,
the phase change temperature range of the organic phase change material is 100-300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555934.XU CN210601843U (en) | 2019-04-22 | 2019-04-22 | Heat storage type electric heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920555934.XU CN210601843U (en) | 2019-04-22 | 2019-04-22 | Heat storage type electric heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915894A (en) * | 2019-04-22 | 2019-06-21 | 珠海格力电器股份有限公司 | Heat storage type electric heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915894A (en) * | 2019-04-22 | 2019-06-21 | 珠海格力电器股份有限公司 | Heat storage type electric heater |
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Effective date of registration: 20210317 Address after: 519070 9 Building (Science and technology building) 789 Jinji Road, Qianshan, Zhuhai, Guangdong Patentee after: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI Address before: 519070, Jinji Hill Road, front hill, Zhuhai, Guangdong Patentee before: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI |
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