CN110236415A - Energy-saving and environment-friendly electric heating thermal insulation cabinet - Google Patents

Energy-saving and environment-friendly electric heating thermal insulation cabinet Download PDF

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Publication number
CN110236415A
CN110236415A CN201910551174.XA CN201910551174A CN110236415A CN 110236415 A CN110236415 A CN 110236415A CN 201910551174 A CN201910551174 A CN 201910551174A CN 110236415 A CN110236415 A CN 110236415A
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CN
China
Prior art keywords
heat
energy
plate
saving
electric heating
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CN201910551174.XA
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Chinese (zh)
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CN110236415B (en
Inventor
崔建芳
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BAINIAN KITCHEN UTENSIL Co Ltd SHENZHEN
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BAINIAN KITCHEN UTENSIL Co Ltd SHENZHEN
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J39/00Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils
    • A47J39/003Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils with forced air circulation
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J39/00Heat-insulated warming chambers; Cupboards with heating arrangements for warming kitchen utensils
    • A47J39/02Dish-warmers; Devices to keep food hot

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Devices For Warming Or Keeping Food Or Tableware Hot (AREA)

Abstract

The invention discloses a kind of energy-saving and environment-friendly electric heating thermal insulation cabinets, it is related to kitchen tool field, its key points of the technical solution are that, including cabinet body, cabinet body has storing chamber, heat supply chamber, heat supply chamber is equipped with heat source, is connected to the indoor air outlet of storage chamber and return air inlet, and the guiding device for being drained to the hot wind that heat source supplies, the punched-plate being equipped between air outlet and return air inlet in the storage chamber room of cabinet body are additionally provided in heat supply chamber;The inner wall of storing chamber is equipped with heat transfer plate, and heat transfer members inside is filled with the phase-change material of thermal energy storage release, and heat transfer component is equipped between punched-plate and heat transfer plate.Have the technical effect that, using the thermally conductive of thermal transfer plate and heat transfer component, the opposite heat supply for reducing heat source, but can balanced storing chamber upper and lower level temperature, reach energy-efficient purpose.2, heat transfer plate can store thermal energy, by the heat slow release of storage, extend soaking time and cooling trend, advanced optimize energy-saving effect.

Description

Energy-saving and environment-friendly electric heating thermal insulation cabinet
Technical field
The present invention relates to kitchen tool field, in particular to a kind of energy-saving and environment-friendly electric heating thermal insulation cabinet.
Background technique
Existing thermal insulation cabinet, structure include that cabinet body and compartment of terrain are set to the intracorporal material disc of cabinet wherein, are set on material disc There is mesh, and be arranged in the lower section of material disc and be laid with electric heating tube, existing shortcoming is direct using electric heating tube Heating, heat are only pushed near electric heating tube, are easy to cause air in cabinet body not smooth, to achieve the purpose that heat preservation, it is necessary to The power for increasing electric heating tube causes the energy consumption of thermal insulation cabinet higher.According to blower blow, the intracorporal storage space of cabinet because Position apart from air outlet and apart from difference, in the case where especially having upper and lower level, will form certain temperature difference, leads to inside Non-uniform temperature controls accuracy decline, influences the storage effect of food.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving and environment-friendly electric heating thermal insulation cabinet, the long, heat utilization rate with heat insulation effect The advantages of good and energy conservation and environmental protection.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of energy-saving and environment-friendly electric heating thermal insulation cabinet, including cabinet body, cabinet body have storing chamber, are equipped with heat supply chamber positioned at the side of cabinet body Room, heat supply chamber are equipped with heat source, are connected to the indoor air outlet of storage chamber and return air inlet, be additionally provided in heat supply chamber and supply heat source The guiding device that is drained to of hot wind, the punching being equipped in the storage chamber room of the cabinet body between air outlet and return air inlet Plate;
The inner wall of the storing chamber is equipped with heat transfer plate, the hollow setting of heat transfer plate, and the internal thermal energy that is filled with stores up The phase-change material for depositing release is equipped with heat absorption on the punched-plate and conducts to the heat transfer component on heat transfer plate.
By using above-mentioned technical proposal, when in use, after heat source heat production, thermal energy is passed through electrothermal heat insulating cabinet by guiding device Air outlet imports storing chamber, and storing chamber stores food, then is sent out by return air inlet and form circulation.Storing chamber has punched-plate point For upper and lower level, hot-fluid passes through punched-plate from bottom to top, and in heat flow process, the temperature of the sheaf space up and down of storing chamber is kept ?.Punched-plate is heat transfer component that can be thermally conductive, heat transfer component by the heat transfer plate of thermal energy conduction to storing chamber interior, Using the thermally conductive of thermal transfer plate and heat transfer component, so that the inner wall of storing chamber temperature with higher, the opposite heat source that reduces Heat supply, and the temperature of the balanced storing chamber upper and lower level of energy, reach energy-efficient purpose.Again because the inside of heat transfer plate has phase Become material, thermal energy can be stored, after heat source stops heat supply, phase-change material extends the heat slow release of storage Soaking time and cooling trend effectively reduce heat source and start duration so that the time for opening heat source next time is elongated, further excellent Change energy-saving effect.
Further setting: the conducting parts are equipped with heat absorption structure, and the heat absorption structure includes that setting exists The fin at each hole edge on punched-plate, fin include multiple involute spinning disks, and the bottom of each involute flight encloses To the hole edge of punched-plate.
By using above-mentioned technical proposal, fin has multiple involute spinning disks, and hot-fluid is led by fin from bottom to top In the hole for flowing punched-plate, fin can conduct heat, transfer heat on punched-plate, in conduction to heat transfer plate.
Further setting: the fin that multiple involute spinning disks are enclosed is in horn-like.
By using above-mentioned technical proposal, the horn-like water conservancy diversion for being more conducive to hot-air.
Further setting: the windward side of the involute spinning disk is equipped with the ellipsoid protrusion of irregular distribution.
By using above-mentioned technical proposal, the protrusion of ellipsoid makes the irregular flowing of hot-fluid, more connects with fin Touching heat transfer.
Further setting: the heat transfer component and heat transfer plate are made of the higher copper product of the coefficient of heat conduction.
By using above-mentioned technical proposal, the coefficient of heat conduction of copper product is high, reduces the heat energy loss in heat transfer process.
Further setting: the phase-change material is CaCl2·6H2O。
By using above-mentioned technical proposal, phase-change material can be recycled and be utilized to thermal energy, by the thermal energy storage of a part Get up, is discharged when heat source is closed, then by the energy of storage, reduce energy consumption, and can be converted by non-renewable energy secondary The energy uses, which will not generate harmful substance pollution environment, energy conservation and environmental protection.
Further setting: the heat source in the guiding device is electric-heating-wire-heating device, further includes drawing the thermal energy of heat source It flow to the indoor blower of storage chamber.
By using above-mentioned technical proposal, electric-heating-wire-heating unit feeding heat source is the most environmentally friendly, and no three wastes generates, more ring It protects, using blower water conservancy diversion, conveys hot-fluid most convenient.
Further setting: the wherein side that the cabinet body is located at storing chamber is equipped with slide-open heat-insulation door plate, heat-insulation door plate Sealed connection is slided up and down equipped with two pieces and with cabinet body.
By using above-mentioned technical proposal, heat-insulation door plate is slidably one of to open or close storage chamber with two pieces Room picks and places food, and using heat-insulating and sealing adhesive tape to the clearance seal between heat-insulation door plate and cabinet body inner wall.
Further setting: the top of the cabinet body is equipped with suspension type sliding rail, and the top of heat-insulation door plate, which is equipped with, to be slidingly attached to The idler wheel of suspension type sliding rail, the upper and lower sides of heat-insulation door plate are equipped with heat-insulating and sealing adhesive tape, and heat-insulating and sealing adhesive tape is hollow to be arranged and be equipped with Gas vent.
By using above-mentioned technical proposal, when pulling, heat-insulating and sealing adhesive tape is pressurized, and internal gas is forced out generation shape Become, facilitate heat-insulation door plate mobile, after mobile, heat-insulating and sealing adhesive tape is restored, and contradicts the inner wall sealing of cabinet body again.
Further setting: the middle part of the cabinet body is equipped with crossbeam, and punched-plate is overlapped on crossbeam.
By using above-mentioned technical proposal, punched-plate is detachably arranged in the middle part of cabinet body using crossbeam, distinguishes Down space, subregion storing heat supply.
In conclusion the invention has the following advantages: the inner utilization thermal transfer plate of 1, electrothermal heat insulating cabinet and heat transfer Component it is thermally conductive so that the inner wall of storing chamber temperature with higher, the opposite heat supply for reducing heat source, and can balanced storage chamber The temperature of room upper and lower level reaches energy-efficient purpose.
2, the inside of heat transfer plate has phase-change material, can store to thermal energy, after heat source stops heat supply, phase Become material for the heat slow release of storage, extend soaking time and cooling trend, so that the time for opening heat source next time becomes It is long, it effectively reduces heat source and starts duration, advanced optimize energy-saving effect.
Detailed description of the invention
Fig. 1 is the front schematic view of energy-saving and environment-friendly electric heating thermal insulation cabinet;
Fig. 2 is the internal longitudinal cross-section structural schematic diagram of energy-saving and environment-friendly electric heating thermal insulation cabinet;
Fig. 3 is the inner transverse cross section structure schematic diagram of energy-saving and environment-friendly electric heating thermal insulation cabinet;;
Fig. 4 is the structural schematic diagram of involute spinning disk.
In figure, 1, cabinet body;2, storing chamber;3, heat supply chamber;4, guiding device;5, heat source;6, blower;7, air outlet; 8, return air inlet;9, partition;10, heat-insulation door plate;11, suspension type sliding rail;12, crossbeam;13, punched-plate;14, heat transfer plate;15, Heat transfer component;16, involute spinning disk;17, ellipsoid protrusion;18, fin;19, heat-insulating and sealing adhesive tape;20, gas vent.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
The first preferred embodiment:
A kind of energy-saving and environment-friendly electric heating thermal insulation cabinet, as shown in Figure 1, including cabinet body 1, the wherein side of cabinet body 1 is equipped with storing chamber 2, Positioned at the side of 1 storing chamber 2 of cabinet body be equipped with heat supply chamber 3, between heat supply chamber 3 and storing chamber 2 using partition 9 mutually every From.
As shown in Figures 2 and 3, it is equipped with guiding device 4 in heat supply chamber 3, there is heat source 5 in guiding device 4, heat source 5 is Electric-heating-wire-heating device and the blower 6 being drained to the thermal energy of heat source 5 in storing chamber 2.Have on heat supply chamber 3 and is connected to storage Air outlet 7 and return air inlet 8 in object chamber 2, specifically, air outlet 7 and return air inlet 8 are set on partition 9, and blower 6 is installed Go out doorway side in the bottom of heat supply chamber 3, and towards partition 9.
As shown in Fig. 2, cabinet body 1 be located at storing chamber 2 wherein side be equipped with slide-open heat-insulation door plate 10, cabinet body 1 it is upper Portion is equipped with suspension type sliding rail 11, and the top of heat-insulation door plate 10 is equipped with the idler wheel for being slidingly attached to suspension type sliding rail 11.Heat-insulation door plate 10 are slided using idler wheel on suspension type sliding rail 11, and storing chamber 2 is opened or closed.
Heat-insulation door plate 10 is equipped with two pieces and slides up and down sealeds connection with cabinet body 1, specifically, heat-insulation door plate 10 is upper and lower Side is equipped with heat-insulating and sealing adhesive tape 19, and the hollow setting of heat-insulating and sealing adhesive tape 19 is equivalent to capsule shape, in heat-insulating and sealing adhesive tape 19 End is equipped with gas vent 20, and heat-insulating and sealing adhesive tape 19 can produce deformation.Pull heat-insulation door plate 10 when, heat-insulating and sealing adhesive tape 19 by Pressure, internal gas are forced out generation deformation, facilitate heat-insulation door plate 10 mobile, and after mobile, heat-insulating and sealing adhesive tape 19 is restored, again Contradict the inner wall sealing of cabinet body 1.
As shown in Figure 3 and Figure 4, the middle part of cabinet body 1 is equipped with crossbeam 12, is equipped with punched-plate 13, punched-plate 13 on crossbeam 12 Middle part in the storing chamber 2 of cabinet body 1, air outlet 7 are located at the upside of punched-plate 13, and return air inlet 8 is located at punched-plate 13 Downside, punched-plate 13 divide storing chamber 2 for upper and lower level storage space.
The inner wall of storing chamber 2 is equipped with heat transfer plate 14, the hollow setting of heat transfer plate 14, and inside filled with heat The phase-change material of release can be stored, heat transfer plate 14 is made of the higher copper product of the coefficient of heat conduction.
Phase-change material can be paraffin, fatty acid, crystalline hydrate salt, there is liquid phase generation in phase transition process, have certain Deformation, in the present embodiment, heat transfer plate 14 be in hollow form, inner sealing setting, in deformation, liquid phase state can also hold It sets in the chamber of thermal transfer plate.
Phase-change material is also possible to solid CaCl2·6H2O。CaCl2·6H2O is by phase change material and backing material group At composite material, when phase-change material is undergone phase transition its shape keep solid shape it is constant.
The chemical property of above-mentioned phase-change material is relatively stable, non-toxic, is the relatively large phase-change material of latent heat of phase change Combination.The fusing point of the hydration salt wherein selected is more slightly higher than best phase transition temperature, is because hydrated salt class phase transformation material exists Degree of supercooling is added after nucleating agent, and fusing point can decrease.
It is equipped on punched-plate 13 by heat absorption and is conducted to the heat transfer component 15 on heat transfer plate 14, heat transfer component 15 are made of the higher copper product of the coefficient of heat conduction.
In order to will preferably conduct in heat absorption to heat transfer component 15, conducting parts are equipped with heat absorption knot Structure, heat absorption structure include the fin 18 that each hole edge on punched-plate 13 is arranged in, and fin 18 is revolved including multiple involutes Flow 16, the bottom of each involute flight are enclosed to the hole edge of punched-plate 13.Fin 18 has multiple involute eddy flows Piece 16, hot-fluid pass through from bottom to top in the hole of 18 water conservancy diversion punched-plate 13 of fin, and fin 18 can conduct heat, transfer heat to On punched-plate 13, in conduction to heat transfer plate 14.
In horn-like, the windward side of involute spinning disk 16 is equipped with the fin 18 that multiple involute spinning disks 16 are enclosed The ellipsoid protrusion 17 of irregular distribution.Horn-like fin 18 is more conducive to guide hot-fluid, and utilizes the ellipsoid of irregular arrangement Shape protrusion 17 makes the irregular flowing of hot-fluid, and the time of hot-fluid and 18 transmission of heat by contact of fin is longer, and area is bigger.
It illustrates, since 14 thermal energy storage of heat transfer plate is by phase-change material CaCl26H2O absorbs thermal current Heat realize, the thermal energy storage performance of Yao Tigao phase change material heat exchanger thermal energy storage effect and reinforced transformation material, 3 kinds of measures can be taken: increasing the flow velocity of thermal current as far as possible;2. improving the initial temperature of thermal current;3. extending thermal current stream The time crossed.
According to test, when the stream of hot air temperature for being passed through heat transfer component 15 and heat-conduction component remains unchanged, air-flow Flow velocity is bigger, and the heat transfer rate of air-flow to phase-change material is bigger, also shorter the time required to entire heating cycle.Therefore, air-flow Flow velocity be an important parameter, in order to make phase-change material store thermal energy as much as possible under identical condition, involute rotation The shape of flow 16 can arrange that the opposite collection of hot-fluid, which neutralizes, to be accelerated during hot-fluid rises according to helical form, improve Certain flow velocity shortens entire heating cycle so that heat transfer rate increases.
In turn, with the ellipsoid protrusion 17 of irregular arrangement on fin 18 so that the irregular flowing of hot-fluid, hot-fluid with The time of 18 transmission of heat by contact of fin is longer, and area is bigger.The flow velocity for the air-flow entirety that compares, the outer surface of ellipsoid protrusion 17 After facilitating drainage, the guiding of air-flow to change, flow velocity is constant, during this air-flow is oriented to and changes, with ellipsoid protrusion 17 time of contact, which is equivalent to, extends the time that thermal current flows through, this time is a small amount, but due to punched-plate 13 hole is more, and each hole is respectively provided with fin 18, and total optimization improves its thermal energy storage efficiency.
The above embodiments are only explanation of the invention, are not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (10)

1. a kind of energy-saving and environment-friendly electric heating thermal insulation cabinet, including cabinet body (1), cabinet body (1) has storing chamber (2), is located at cabinet body (1) Side is equipped with heat supply chamber (3), and heat supply chamber (3) is equipped with heat source (5), the air outlet (7) being connected in storing chamber (2) and returns Air port (8), heat supply chamber (3) is interior to be additionally provided with the guiding device (4) for being drained to the hot wind that heat source (5) supply, the cabinet body (1) The punched-plate (13) being equipped in storing chamber (2) between air outlet (7) and return air inlet (8);
It is characterized by: the inner wall of the storing chamber (2) is equipped with heat transfer plate (14), heat transfer plate (14) is hollow to be set It sets, and the internal phase-change material filled with thermal energy storage release, is equipped on the punched-plate (13) by heat absorption and conducts Heat transfer component (15) on to heat transfer plate (14).
2. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 1, it is characterised in that: the conducting parts are equipped with thermal energy Absorbing structure, the heat absorption structure include the fin (18) that each hole edge is arranged on punched-plate (13), fin (18) Including multiple involute spinning disks (16), the bottom of each involute flight is enclosed to the hole edge of punched-plate (13).
3. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 2, it is characterised in that: multiple involute spinning disks (16) are enclosed The fin (18) formed is closed in horn-like.
4. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 3, it is characterised in that: the involute spinning disk (16) The ellipsoid that windward side is equipped with irregular distribution is raised (17).
5. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 1, it is characterised in that: the heat transfer component (15) and heat pass Guide plate part (14) is made of the higher copper product of the coefficient of heat conduction.
6. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 1, it is characterised in that: the phase-change material is CaCl2· 6H2O。
7. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 1, it is characterised in that: the heat in the guiding device (4) Source (5) is electric-heating-wire-heating device, further includes the blower (6) being drained to the thermal energy of heat source (5) in storing chamber (2).
8. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 1, it is characterised in that: the cabinet body (1) is located at storage chamber The wherein side of room (2) is equipped with slide-open heat-insulation door plate (10), and heat-insulation door plate (10) is equipped with two pieces and the upper downslide with cabinet body (1) Dynamic sealing connection.
9. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 8, it is characterised in that: the top of the cabinet body (1) is equipped with Suspension type sliding rail (11), the top of heat-insulation door plate (10) are equipped with the idler wheel for being slidingly attached to suspension type sliding rail (11), heat-insulation door plate (10) upper and lower sides are equipped with heat-insulating and sealing adhesive tape (19), and heat-insulating and sealing adhesive tape (19) is hollow to be arranged and be equipped with gas vent (20).
10. energy-saving and environment-friendly electric heating thermal insulation cabinet according to claim 1, it is characterised in that: the middle part of the cabinet body (1) is equipped with Crossbeam (12), punched-plate (13) are overlapped on crossbeam (12).
CN201910551174.XA 2019-06-24 2019-06-24 Energy-saving environment-friendly electric heating thermal insulation cabinet Active CN110236415B (en)

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CN110236415A true CN110236415A (en) 2019-09-17
CN110236415B CN110236415B (en) 2021-03-19

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CN206596622U (en) * 2017-01-09 2017-10-31 金彩云 A kind of thermal insulation cabinet and Combined food cabinet
CN207346398U (en) * 2017-08-08 2018-05-11 天津商业大学 A kind of food and drink express delivery incubator
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1262129A2 (en) * 2001-06-01 2002-12-04 Nestec S.A. Merchandiser system and method for controlling the drying of previously baked goods
CN101023833A (en) * 2006-02-24 2007-08-29 上海酒店设备总汇有限公司 Technology for making food heat-insulation cabinet adopting independent heating module
CN201314658Y (en) * 2008-11-27 2009-09-23 上海凌御电气有限公司 Temperature equalization structure for outdoor machine cabinet
CN201332973Y (en) * 2008-12-22 2009-10-28 杭州九龙厨具制造有限公司 Multifunctional hot air cabinet
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CN207346398U (en) * 2017-08-08 2018-05-11 天津商业大学 A kind of food and drink express delivery incubator
CN208186949U (en) * 2017-12-28 2018-12-04 青岛海尔特种电冰柜有限公司 Bottom ventilation formula thermal insulation cabinet and refrigeration equipment

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