CN103253450A - Warmth keeping box - Google Patents
Warmth keeping box Download PDFInfo
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- CN103253450A CN103253450A CN2013101960352A CN201310196035A CN103253450A CN 103253450 A CN103253450 A CN 103253450A CN 2013101960352 A CN2013101960352 A CN 2013101960352A CN 201310196035 A CN201310196035 A CN 201310196035A CN 103253450 A CN103253450 A CN 103253450A
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Abstract
The invention relates to a warmth keeping box which comprises a box body and a box cover. The box body comprises side walls and a bottom and an object containing zone is formed inside the box body. A first inserting groove is formed in each side wall. A first coldness/heat storage board is placed in each first inserting groove. A second inserting groove is formed inside each side wall. A second coldness/heat storage board is placed in each second inserting groove. The structure that each second inserting groove is formed inside one first inserting groove is adopted, condensate water generated by the first coldness/heat storage board in each first inserting groove can be separated, a product box of a user is prevented from being polluted, the temperature can be maintained and is transferred slowly, and the efficiency of the warmth keeping box can be improved overall.
Description
Technical field
The present invention relates to a kind of insulation can, be specifically related to a kind of insulation can of refrigerant temperature being had relatively high expectations for fields such as biological, medical treatment and food.
Background technology
The cool-storage type insulation can is phase early 1980s, equips from a kind of logistlcs technology very efficiently that developed country grows up.Owing to size flexibly, excellent thermal insulation performance, prestowage form make it become a high-quality transportation equipment of small lot, high-quality goods transport flexibly, it mainly is made up of insulation can and hold-over plate, wherein insulation can itself does not have refrigerating function, its temperature control is to rely on the hold-over plate of configuration different temperatures to realize, just can realize cold insulation for a long time thereby make insulation can need not refrigeration.
The efficient agent for storage of coldness that can repeated multiple times uses is housed in the hold-over plate.According to the difference of the temperature that will keep, insulation can is divided into three types at present: refrigeration-type, and its temperature control for example is specifically designed to biological products (as vaccine product) at 2 ℃～8 ℃; Normal temperature type, its temperature control for example is used for normal food etc. at 0 ℃～20 ℃; Frozen type, its temperature control for example is used for frozen food etc. at-10 ℃～-18 ℃.And the chest specification of these types is identical, and the different temperatures control of cabinet interior relies on the hold-over plate of different size to realize.
Hold-over plate makes the temperature inside the box keep constant by heat absorption in case.Reefer cargo and reefer cargo can be loaded on respectively in the insulation can of different temperatures, and insulation can just can together be contained in the general wagon with the normal temperature goods and provide and deliver after installing.
Cool-storage type transportation insulation can series of products have been released in the market.For example Granted publication number has just disclosed a kind of like this insulation can for the Chinese invention patent file of CN2692598Y, as shown in Figure 1, this insulation can comprises the casing of being made by warm material 1, inwall at casing 1 is provided with some accommodating bag 2 that are built-in with sealing cold-storage ice 3, accommodating bag 2 is fixed on the strong insulation strip of heat conductivity 4, and accommodating bag 2 is close to casing 1 inwall.To seal cold-storage during use and ice 3 abundant freezing backs and take out to be placed in the accommodating bag 2 and use, insulation strip 4 is provided with the fastening connection piece 5 that flexibly connects with casing 1 inwall.This product structure is simple and practical, easy to carry, but this invention is owing to only be provided with one deck cold-storage ice 3 and be placed in the accommodating bag 2, and it is very big to add each ground temperature temperature difference of China, therefore is difficult to satisfy the insulation demand of long-time long distance.
The information that is disclosed in this background of invention technology part only is intended to deepen the understanding to general background technology of the present invention, and should not be regarded as admitting or hint in any form that this information constitutes being prior art known in those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of insulation can, can solve and be difficult to long-time insulation and client in the prior art for the demands in the different transportations of different product zone.
For achieving the above object, the technology used in the present invention solution provides a kind of insulation can, described insulation can comprises casing and case lid, described casing includes sidewall and bottom and is formed with the article container district at box house, in described sidewall, be provided with first slot, be placed with first cold-storage/heat accumulation plate in described first slot; And be provided with second slot in the inboard of described sidewall, be placed with second cold-storage/heat accumulation plate in described second slot.
Further, described first slot is strip shape, and comprises widened section.
Further, the degree of depth of described widened section is less than the degree of depth of described strip shape part.
Further, described first cold-storage/heat accumulation plate temperature is lower than/is higher than second cold-storage/heat accumulation plate.
Further, described first cold-storage/heat accumulation plate and second cold-storage/heat accumulation plate includes first cold-storage/heat-storage agent and second cold-storage/heat-storage agent respectively.
As a kind of improvement of the present invention, described casing is cuboid, comprises the first, second, third and the 4th sidewall, and the first side wall is relative with the 3rd sidewall, and second sidewall is relative with the 4th sidewall; Wherein first slot in the first side wall and the 3rd sidewall comprises widened section.
Further, described second slot is arranged on the inboard of second sidewall and the 4th sidewall.
As another kind of improvement the of the present invention, between described second slot and described article container district, be provided with immobilization material.
Further, bottom, described article container district is provided with one or more projections.
Further, be provided with flame diversion trough bottom the described box inside.
Further, described case lid and described casing are for dividing body structure or flexible connection.
Preferably, described casing and case lid are made by polystyrene foamed.
Preferably, the distance between described first slot and the casing outside is greater than the distance between described first slot and the box inside.
In the present invention, cold-storage/heat accumulation plate represents it both can is to keep lower temperature and in use by absorbing the hold-over plate that heat reduces ambient temperature, also can be to keep higher temperature and in use provide release heat and heat accumulation plate that ambient temperature is raise.
Cold-storage/heat-storage agent represents it both can is the agent for storage of coldness that absorbs heat, also can be the heat-storage agent of release heat.
The invention has the beneficial effects as follows: insulation can of the present invention arranges a slot and be provided with second cold-storage/heat accumulation plate in slot by increasing in existing insulation can, make the cold-storage/heat accumulation plate in the insulation can be divided into efficient cold-storage/heat accumulation plate that sufficient thermal source/low-temperature receiver is provided and the constant temperature cold-storage/heat accumulation plate that keeps the insulation can temperature, thereby not only can prolong the temperature retention time of article, can also guarantee better that the temperature in the insulation can keeps predetermined temperature range.
In addition, insulation can of the present invention can also pass through fixing and isolate the article that need insulation, thereby has isolated the condensed water by the generation of low temperature ice chest, to avoid polluting the article that need insulation.In addition, insulation can of the present invention can also play the effect that keeps and slowly transmit to temperature, can improve the temperature retention time of insulation can on the whole.
Description of drawings
By the accompanying drawing of including this paper in and the specific embodiment that is used from explanation some principle of the present invention subsequently with accompanying drawing one, the further feature that method and apparatus of the present invention has and advantage will become clear or more specifically be illustrated.
Fig. 1 is cool-bag perspective view of the prior art.
Fig. 2 is the structural representation of case lid of the present invention.
Fig. 3 is the birds-eye view of the casing of the insulation can of first kind of embodiment of the present invention.
Fig. 4 is the A-A direction cutaway view of the casing of insulation can shown in Figure 3.
Fig. 5 is the perspective view of casing of the insulation can of second kind of embodiment of the present invention.
Fig. 6 is the birds-eye view of the casing of the insulation can of second kind of embodiment of the present invention.
The specific embodiment
A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, and those skilled in the art can do similar popularization under the situation of intension of the present invention, so the present invention is not subjected to the restriction of following public specific embodiment.
Below in conjunction with accompanying drawing insulation can of the present invention is described further:
Fig. 2 is the structural representation of the case lid of insulation can of the present invention; Fig. 3 is the birds-eye view of the casing of insulation can of the present invention; Fig. 4 is A-A cutaway view among Fig. 3.
Insulation can of the present invention comprises casing 11 and case lid 10.
This case lid 10 covers on the casing 11.This case lid 10 can be arranged with casing in 11 minutes, also can be hinged by hinge and casing 11.
As shown in Figure 3, this casing 11 is shaped as cuboid, comprises first, second, third and four sidewalls of the fourth class and a bottom, and wherein the first side wall is relative with the 3rd sidewall, and second sidewall is relative with the 4th sidewall.Form article container district 15 by these sidewalls and bottom at box house, be used for holding the article of needs insulation.These article container district 15 open tops, this case lid 10 covers on the casing 11 during use, thereby with 15 sealings of article container district.
This casing 11 and case lid 10 all are to be made by warm material.This warm material is preferably the polyethylene foamed material, and concrete technology is by the prefoam polyethylene particle is injected mould, then hot forming and making.The low heat conductivity of polyethylene foamed can be able to effectively guarantee the continuous and effective of low-temperature receiver/thermal source.Certainly, casing 11 of the present invention and case lid 10 also can adopt other low-heat conductive composite to make, and perhaps also use other materials (such as polyurethane etc.) to make.
As selection, the shape of casing 11 also can be and is transformed to other shapes with inner spatial accommodation, and it is inner to form corresponding inner space and adapt with the shape with the article of needs insulation.For example, rhombohedron, cone or cylinder, irregular gengon etc.
In the sidewall of casing 11, be respectively equipped with first slot 13 and be provided with second slot 14 at two opposite faces, around the bottom of second slot 14, be provided with protrusion 18.Wherein in first slot 13, be provided with efficient cold-storage/heat accumulation plate (also can be referred to as first cold-storage/heat accumulation plate), and in second slot 14, be provided with constant temperature cold-storage/heat accumulation plate (also can be referred to as second cold-storage/heat accumulation plate).
Above said cold-storage/heat accumulation plate can select as required, both can be that hold-over plate also can be heat accumulation plate.For example, when the temperature of residing seasonal temperature and the preservation of client's article need is variant, can adopt cold-storage/heat accumulation plate to go to reach the preservation temperature requirements of client's article, such as be in summer when season, and the need preservation temperature that needs the article of insulation is when being subfreezing temperature, will select hold-over plate this time so, thereby for client's article provide subzero preservation temperature environment, and be in winter and client's article higher temperature need be kept the time when season, just adopt heat accumulation plate, the preservation temperature environment of high temperature is provided as the article of needs insulation.
As shown in Figure 3, first slot 13 in the present embodiment, forming in sidewall roughly is that the cross section is the groove of strip shape, is used for placing efficient cold-storage/heat accumulation plate (first cold-storage/heat accumulation plate) that efficient cold-storage/heat-storage agent is housed.Four first slots 13 lay respectively in four sidewalls of casing, are strip shape, and it is in open top, thereby can efficient cold-storage/heat accumulation plate be inserted into first slot 13 from top.
In the present embodiment, four first slots 13 in insulation can 11 sidewalls are strip shape, are provided with widened section 17 in the middle of the strip shape part of four first slots, make four first slots 13 form "T"-shaped; And the degree of depth of this widened section is less than the degree of depth of strip shape part, or as required, selects for the quantity of first slot 13 that widened section 17 is set, and its quantity can be from 0-4; That is, do not have first slot 13 that widened section is set and to whole first slots 13 widened section is set.
As selection, first slot 13 or widened section wherein also can be other shapes, such as the combination of semicircle, oval, square and different shape etc.
The described efficient cold-storage/heat accumulation plate that is arranged in first slot 13 is the inner box that accommodates cold-storage/heat-storage agent, for example is the high density polyethylene (HDPE) box.The shape and size of box are selected according to the shape and size of first slot, if its size and dimension can cooperate insertion first slot just can, can conveniently layingly fix like this, and not fragile.The box-shape of present embodiment is cuboid.Some holes that cave inward or groove are arranged on the box surface simultaneously, so that user's finger can stretch into, thereby conveniently take.
Hold efficient cold-storage/heat-storage agent in cassette interior, it is the phase-change material in certain density salt or Polymer Solution doping specified temp interval, this concentration can be set as required, solvent is water or organic solvent, thereby when temperature traverse, can absorb or emit more heat, and keep the temperature in the insulation can effectively.The temperature of efficient cold-storage/heat-storage agent generally will be lower than/be higher than desired temperature, thereby can transmit energy to the spatial accommodation of insulation can.For example when the insulation can temperature is set at 2-8 °, the temperature of efficient cold-storage/heat-storage agent is for containing in anti-cryogen, dispersing agent, salt, high-molecular gel, phase-change material, the dispersing agent one or more in-20 to-10 ° of solution.
Efficient cold-storage/heat accumulation plate (first cold-storage/heat accumulation plate) is set different temperatures according to the temperature requirements of specifically treating the preservation article, and it is placed and is placed in first slot 3, for insulation can provides cold/heat-flash source by force.Cold-storage/heat accumulation plate discharges strong cold/heat-flash amount in transportation, keep range of temperatures, can guarantee that because the special material of insulation can has lower coefficient of thermal conductivity the egress of heat of system is in range of control.
As selection, second slot 14 also can be the Any shape that cooperates or cooperate with constant temperature cold-storage/heat accumulation plate with first slot 13, such as the combination of semicircle, oval, square and different shape etc.And its quantity also can change as required, for example can all be provided with second slot 14 at four sidewalls.
Described constant temperature cold-storage/heat accumulation plate (second cold-storage/heat accumulation plate) for example is the high density polyethylene (HDPE) box for the inner box that accommodates cold-storage/heat-storage agent.The shape and size of box are selected according to the shape and size of second slot, if its size and dimension can cooperate insertion first slot just can, put convenient fixing like this, and not fragile.The box-shape of present embodiment is cuboid.Simultaneously on the box surface some circular ports that cave inward are arranged, user's finger can be stretched into, thereby conveniently take.
Constant temperature cold-storage/heat-storage agent (second cold-storage/heat accumulation plate) is contained in cassette interior, is the salt of some concentration or the phase-change material in Polymer Solution doping specified temp interval, and solvent is water or organic solvent.This constant temperature cold-storage/heat-storage agent can adopt different cold-storage/heat-storage agents according to the desired temperature of insulation can.For example when the insulation can temperature was set at 2-5 °, the temperature of constant temperature cold-storage/heat-storage agent can be 0-2 °.
Contain anti-cryogen, dispersing agent, salt, high-molecular gel, phase-change material in the solution, dispersing agent is a kind of or some kinds.Constant temperature cold-storage/heat accumulation plate is set identical with it temperature according to the temperature requirements of specifically treating the preservation article, it is placed in second slot 14, for treating that the preservation product provides a required isoperibol, to treat that the preservation product puts into product and hold district 15 and fixing, prevent in transportation, treat that the preservation product box is moved, the insulation can among the present invention can keep treating that the preservation product maintains the specific range of temperatures of customer requirement in transportation like this.
Constant temperature cold-storage/heat accumulation plate continues released cold quantity/heat in transportation, keep range of temperatures, can guarantee that because the casing 11 of insulation can has lower coefficient of thermal conductivity the egress of heat of system is in range of control.
In use, efficient cold-storage/heat accumulation plate (first cold-storage/heat accumulation plate) releases energy to insulation can inside constantly; And constant temperature cold-storage/heat accumulation plate (second cold-storage/heat accumulation plate) absorbs energy from efficient cold-storage/heat accumulation plate on the one hand, to keep the temperature of itself; On the other hand, keep the temperature of spatial accommodation and article by releasing energy.That is to say that constant temperature cold-storage/heat accumulation plate can either make spatial accommodation keep constant temperature, also can keep spatial accommodation to keep constant temperature by self releasing energy by self absorbing efficient cold-storage/too much energy of heat accumulation plate release.
And, between described second slot and described article container district, be provided with immobilization material.Making by this immobilization material needs the article of insulation to remain in the insulation can, thereby can be because carrying or violent motion do not make the article damage in transportation.
When insulation can is worked, the client will need insulating article to be positioned in the article container district 15, put into efficient cold-storage/heat accumulation plate that efficient cold-storage/heat-storage agent is housed in first slot 13, and this efficient cold-storage/heat accumulation plate keeps design temperature; In second slot, put into constant temperature cold-storage/heat accumulation plate that constant temperature cold-storage/heat-storage agent is housed.Because in insulating process, efficient cold-storage/heat accumulation plate is continuously to casing 11 delivered inside low-temperature receiver/thermals source, therefore guarantee that constant temperature cold-storage/heat accumulation plate can keep the steady temperature of demand all the time, then guarantee the isoperibol in article container district 15, thereby reach the constant temperature preservation demand of client's product.And because casing 11 makes for the polyethylene foamed material, the lasting maintenance that the low heat conductivity of polyethylene foamed can actv. assurance low-temperature receiver/thermal source.
And between efficient cold-storage/heat accumulation plate and constant temperature cold-storage/heat accumulation plate, form it mutual isolated polyethylene foamed material, so not only can separate efficient cold-storage/heat accumulation plate and constant temperature cold-storage/heat accumulation plate that the big temperature difference is arranged, prevent the rapid loss of cold/heat, thereby and cold/heat that efficient cold-storage/heat accumulation plate produces slowly can be passed to the integral heat insulation time that constant temperature cold-storage/heat accumulation plate prolongs insulation can.In addition protrusion 18 can also intercept condensed water that efficient cold-storage/heat accumulation plate produces pollute the client product box around and the bottom.
Certainly, this immobilization material 16 can for casing 11 integrated formed structures, also can be arranged to the branch body structure that can cooperatively interact with casing 11, so that the size of Bao Wen article is adjusted the size in article container district 15 at any time as required.
In addition, around the bottom of first slot 13 and second slot 14, can also be provided with the water conservancy diversion conduit, can compile the condensed water that efficient cold-storage/heat accumulation plate 19 and constant temperature cold-storage/heat accumulation plate 17 flow down like this, thereby avoid fleeing of condensed water everywhere and pollute casing, thereby prolong the service life of insulation can.In addition, the protrusion 18 around in 15 bottoms, article container district needing can effectively avoid the article of insulation to contact with the insulation can bottom, prevents condensed water pollution client product box again.
The present invention adopts the structure that second slot is set in the first slot inboard, not only can isolate the condensed water that is produced by the cold-storage in first slot/heat accumulation plate, avoid polluting client's product box, can also play the effect that keeps and slowly transmit to temperature, can improve the efficient of insulation can on the whole.
As shown in Figure 5, perspective view for the casing 11 of the insulation can of second kind of embodiment of the present invention, Fig. 6 is the birds-eye view of the casing of the insulation can of second kind of embodiment of the present invention, differently with first kind of embodiment be, in the present embodiment, 15 inside, article container district do not arrange immobilization material in the casing 11, and the insulation can of this structure is applicable to the situation that client's product box is bigger.In addition, in the present embodiment, two first slots 13 up and down in four first slots 13 are provided with widened section 19, are convenient to take and prevent efficient cold-storage/heat accumulation plate, the setting of this widened section 19 makes that two first slots 13 form " Lv " shape up and down; And the degree of depth of this widened section is less than the degree of depth of strip shape part, or as required, selects for the quantity that widened section first slot 13 is set, and its quantity can be from 0-4; That is, do not have first slot 13 that widened section is set and to whole first slots 13 widened section is set.The following describes the use of insulation can of the present invention.
At first, Bao Wen article as required, put into the efficient cold-storage/heat accumulation plate of predetermined temperature in first slot in the sidewall of casing, and put into the constant temperature cold-storage/heat accumulation plate of predetermined temperature in second slot, wherein first cold-storage/heat accumulation plate temperature is lower than/is higher than second cold-storage/heat accumulation plate.Then article are put into spatial accommodation, put into immobilization material again so that article are remained on spatial accommodation.Case lid is built.If desired, then wrap packing in the insulation can outside.The article that like this, just can guarantee insulation can keep predetermined temperature in specific time.
When insulation can is worked, need the article of insulation to place within the article container district 15, supported by the protrusion 18 around 15 bottoms, article container district, avoid article bottom insulation case bottom to pollute.By efficient cold-storage/heat accumulation plate endlessly in the case inside cold/heat is provided, thereby make the constant temperature cold-storage/heat accumulation plate that places second slot remain the needed temperature of article.Even the inner temperature difference with the outside of insulation can is too big, also can be by the material of making of casing 11, namely the low heat conductivity of polyethylene foamed material reduces the loss of energy.And the condensed water that efficient cold-storage/heat accumulation plate is produced because of the inside and outside big temperature difference of casing is also flowed in the water conservancy diversion conduit of first slot 13 and second slot, 14 bottoms, has avoided the situation of the contaminated articles because article contact with condensed water to take place.In addition, immobilization material can also effectively be fixed efficient cold-storage/heat accumulation plate and/or constant temperature cold-storage/heat accumulation plate, can prevent the generation of the situation such as jolt in the long-distance transport process and cause the displacement of efficient cold-storage/heat accumulation plate and/or constant temperature cold-storage/heat accumulation plate, thereby better guarantee the work effect of insulation can.
Though in an embodiment of the present invention, the applicant mainly is illustrated principle of the present invention with cold-storage/heat storage type (cold-storage/heat accumulation plate, cold-storage/heat-storage agent).But be appreciated that the present invention goes for simple cold-storage mode or heat storage type, and substantial change can not take place in its principle and structure.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (14)
1. insulation can, described insulation can comprises casing and case lid, and described casing includes sidewall and bottom and is formed with the article container district at box house, it is characterized in that, in described sidewall, be provided with first slot, be placed with first cold-storage/heat accumulation plate in described first slot; And be provided with second slot in the inboard of described sidewall, be placed with second cold-storage/heat accumulation plate in described second slot.
2. insulation can according to claim 1 is characterized in that, described first slot is strip shape, and comprises widened section.
3. insulation can according to claim 2 is characterized in that, the degree of depth of described widened section is less than the degree of depth of described strip shape part.
4. insulation can according to claim 1 is characterized in that, described first cold-storage/heat accumulation plate temperature is lower than/is higher than second cold-storage/heat accumulation plate.
5. according to each described insulation can among the claim 1-4, it is characterized in that described first cold-storage/heat accumulation plate and second cold-storage/heat accumulation plate includes first cold-storage/heat-storage agent and second cold-storage/heat-storage agent respectively.
6. according to each described insulation can among the claim 1-4, it is characterized in that described casing is cuboid, comprise the first, second, third and the 4th sidewall, the first side wall is relative with the 3rd sidewall, and second sidewall is relative with the 4th sidewall; Wherein first slot in the first side wall and the 3rd sidewall comprises widened section.
7. insulation can according to claim 6 is characterized in that, described second slot is arranged on the inboard of second sidewall and the 4th sidewall.
8. according to each described insulation can among the claim 1-4, it is characterized in that, between described second slot and described article container district, be provided with immobilization material.
9. according to each described insulation can among the claim 1-4, it is characterized in that bottom, described article container district is provided with one or more projections.
10. according to each described insulation can of claim 1-4, it is characterized in that described box inside bottom is provided with flame diversion trough.
11., it is characterized in that described case lid and described casing are for dividing body structure or flexible connection according to each described insulation can of claim 1-4.
12. according to each described insulation can of claim 1-4, it is characterized in that described casing and case lid are made by polystyrene foamed.
13., it is characterized in that the distance between described first slot and the casing outside is greater than the distance between described first slot and the box inside according to each described insulation can of claim 1-4.
14. insulation can according to claim 7 is characterized in that, is provided with immobilization material between described second slot and described article container district; Bottom, described article container district is provided with one or more projections; Described box inside bottom is provided with flame diversion trough.
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| CN201310196035.2A CN103253450B (en) | 2013-05-23 | 2013-05-23 | Insulation can |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310196035.2A CN103253450B (en) | 2013-05-23 | 2013-05-23 | Insulation can |
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| CN103253450A true CN103253450A (en) | 2013-08-21 |
| CN103253450B CN103253450B (en) | 2015-12-30 |
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| CN104150106A (en) * | 2014-07-29 | 2014-11-19 | 浙江大学 | Combined foam insulation box with coolant storage space |
| CN105444488A (en) * | 2015-07-16 | 2016-03-30 | 青岛海尔特种电器有限公司 | Cold-storage heat-storage combined type constant temperature equipment and control method |
| CN105857931A (en) * | 2015-12-22 | 2016-08-17 | 上海原能细胞医学技术有限公司 | Cell storage and transportation case and monitoring system |
| CN106417255A (en) * | 2016-10-12 | 2017-02-22 | 山东威高集团医用高分子制品股份有限公司 | Medical heat insulation box |
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| CN109693881A (en) * | 2018-11-26 | 2019-04-30 | 浙江大学 | A kind of cold-storage transport case |
| CN110986447A (en) * | 2019-11-08 | 2020-04-10 | 深圳职业技术学院 | Heat-preservation turnover box |
| CN112810966A (en) * | 2021-02-03 | 2021-05-18 | 上海箱箱智能科技有限公司 | Thermal insulation container |
| CN113200241A (en) * | 2019-05-10 | 2021-08-03 | 杭州电子科技大学 | Packing box with long refrigerating time |
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| CN108750407B (en) * | 2018-06-15 | 2020-06-19 | 芜湖英特杰智能科技有限公司 | Utilize cold-storage insulation can temperature control equipment of vortex technique |
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