CN103608638B - Thermal storage member - Google Patents

Abstract

The object of the present invention is to provide the thermal storage member of inhaling exothermicity excellence.This thermal storage member has: the solid changed at the front and back volume of phase transformation with latent heat or gelatinous latent heat storage material (10); The first component (30) of latent heat storage material (10) is attached to the first tack; With clip latent heat storage material (10) and first component (30) and be oppositely disposed, the second component (40) of latent heat storage material (10) can be attached to the second tack lower than the first tack.

Description

Thermal storage member

Technical field

The present invention relates to the thermal storage member using latent heat storage material.

Background technology

All the time, the thermal storage member of known use latent heat storage material, this latent heat storage material utilizes the latent heat produced with the phase transformation between solid phase and liquid phase to accumulate heat energy.In general, thermal storage member has the container body of latent heat storage material and this latent heat storage material of storage.Normally used latent heat storage material volume when being phase-changed into solid phase from liquid phase can reduce.Therefore, in container body, be filled with the latent heat storage material of the amount being full of this container body under liquid phase state completely.

Prior art document

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2-203198 publication

Summary of the invention

The technical problem that invention will solve

But, when the latent heat storage material being full of container body fades to solid phase mutually from liquid phase, due to the contraction of latent heat storage material, in container body, produce the space of involuntary setting.The space produced in container body hinders the heat transfer in latent heat storage material sometimes, or the heat between latent heat storage material and suction heat release object moves, and wherein, inhaling heat release object is the object that latent heat storage material carries out neither endothermic nor exothermic.Therefore, the problem that the suction exothermicity that can produce thermal storage member declines.

The object of the present invention is to provide a kind of thermal storage member of inhaling exothermicity excellence.

The technical scheme of technical solution problem

Above-mentioned purpose is reached by following thermal storage member: the feature of this thermal storage member is to have: the solid changed at the front and back volume of phase transfer with latent heat or gelatinous latent heat storage material; The first component of above-mentioned latent heat storage material is attached to the first tack; With clip above-mentioned latent heat storage material and above-mentioned first component is oppositely disposed, the second component of above-mentioned latent heat storage material can be attached to the second tack lower than above-mentioned first tack.

The feature of the thermal storage member of the invention described above is: above-mentioned thermal storage member does not have mobility within the scope of serviceability temperature.

The feature of the thermal storage member of the invention described above is: be attached to above-mentioned first component and above-mentioned both second components during the side of above-mentioned latent heat storage material in the front and back being in above-mentioned phase transfer, peels off during the opposing party in the front and back being in above-mentioned phase transfer from above-mentioned second component.

The feature of the thermal storage member of the invention described above is: above-mentioned first component and above-mentioned second component are formed by the mutually different materials that formed.

The feature of the thermal storage member of the invention described above is: above-mentioned latent heat storage material is containing poly alkane, containing polyethylene in the formation material of above-mentioned first component.

The feature of the thermal storage member of the invention described above is: also have and be arranged between above-mentioned first component and above-mentioned second component, maintains the interval maintaining member at the interval of above-mentioned first component and above-mentioned second component.

The feature of the thermal storage member of the invention described above is: above-mentioned interval maintaining member is formed as the spherical shape with the diameter equal with above-mentioned interval.

The feature of the thermal storage member of the invention described above is: above-mentioned interval maintaining member has: the seal member (capsuleparts) of hollow spheres; With the heat-barrier material be enclosed in above-mentioned seal member.

The feature of the thermal storage member of the invention described above is: above-mentioned interval maintaining member has: the seal member of hollow spheres; With the heat-storing material be enclosed in above-mentioned seal member.

The feature of the thermal storage member of the invention described above is: above-mentioned interval maintaining member is formed as the shape of the column with the height equal with above-mentioned interval.

The feature of the thermal storage member of the invention described above is: above-mentioned latent heat storage material be incorporated at least use above-mentioned first component and above-mentioned second component to be formed airtightly container body in, in said vesse body, be formed with the gas compartment that all there is not above-mentioned latent heat storage material in the front and back of described phase transfer.

The feature of the thermal storage member of the invention described above is: above-mentioned latent heat storage material be incorporated at least use above-mentioned first component and above-mentioned second component to be formed container body in, the passage that the outflow that said vesse body has the gas that can realize inside and outside this container body flows into.

The feature of the thermal storage member of the invention described above is: the porous body that the outflow being provided with the gas suppressing said vesse inside and outside at above-mentioned passage flows into.

In addition, above-mentioned purpose is reached by following thermal storage member: the feature of this thermal storage member is to have: the solid changed at the front and back volume of phase transfer with latent heat or gelatinous latent heat storage material; Be attached to the first component of above-mentioned latent heat storage material; Clip above-mentioned latent heat storage material and above-mentioned first component is oppositely disposed, the second component do not contacted with above-mentioned latent heat storage material; And the gas blanket formed between above-mentioned latent heat storage material and above-mentioned second component.

In addition, above-mentioned purpose is reached by following heat storage container: the feature of this heat storage container is: use the thermal storage member of the invention described above to be formed, above-mentioned first component is configured in internal face side, and above-mentioned second component is configured in from the farther position of the accommodation space surrounded by above-mentioned internal face compared with above-mentioned first component.

In addition, above-mentioned purpose is reached by following cold storage box: the feature of this cold storage box is: thermal storage member and the cooler with the invention described above, contacting with above-mentioned cooler at least partially of above-mentioned second component.

Invention effect

According to the present invention, the thermal storage member of inhaling exothermicity excellence can be realized.

Accompanying drawing explanation

Fig. 1 is the figure of the cross section structure of the summary of the thermal storage member 1 representing the first embodiment of the present invention.

Fig. 2 is the figure of the cross section structure of the summary of the thermal storage member 2 representing the second embodiment of the present invention.

Fig. 3 is the figure of the cross section structure of the summary of the thermal storage member of the variation representing the second embodiment of the present invention.

Fig. 4 is the figure of the cross section structure of the summary of the thermal storage member 3 representing the 3rd embodiment of the present invention.

Fig. 5 is the figure of the cross section structure of the summary of the thermal storage member 4 representing the 4th embodiment of the present invention.

Fig. 6 is the figure of the cross section structure of the summary of the thermal storage member 5 representing the 5th embodiment of the present invention.

Fig. 7 is the figure of the cross section structure of the summary of the thermal storage member 6 representing the 6th embodiment of the present invention.

Fig. 8 is the figure of the cross section structure of the summary of the thermal storage member 7 representing the 7th embodiment of the present invention.

Fig. 9 is the figure of the cross section structure of the summary of the thermal storage member 8 representing the 8th embodiment of the present invention.

Figure 10 is the figure of the cross section structure of the summary of the thermal storage member 9 representing the 9th embodiment of the present invention.

Figure 11 is the figure of the example representing the heat storage container using the thermal storage member of embodiments of the present invention to be formed.

Figure 12 is the figure of the example representing the heat storage container using the thermal storage member of embodiments of the present invention to be formed.

Figure 13 is the figure of the example representing the heat storage container using the thermal storage member of embodiments of the present invention to be formed.

Figure 14 is the figure of the cross section structure of the summary of the thermal storage member 310 representing the tenth embodiment of the present invention.

Figure 15 is the figure of the cross section structure of the summary of the thermal storage member 311 representing the 11 embodiment of the present invention.

Figure 16 is the figure of the cross section structure of the summary of the thermal storage member 312 representing the 12 embodiment of the present invention.

Figure 17 is the figure of the structure of the summary of the cold storage box 400 representing the thermal storage member 312 with the 12 embodiment of the present invention.

Figure 18 represents in the thermal storage member of embodiments of the present invention, the figure of an example of structure side surface part 42,44 formed by the parts different from bottom surface sections 41.

Figure 19 represents in the thermal storage member of embodiments of the present invention, the gasification of latent heat storage material 10 is being carried out to the figure of an example of the structure having descended the time in suppression.

Detailed description of the invention

[the first embodiment]

Use Fig. 1 that the thermal storage member of the first embodiment of the present invention is described.Fig. 1 (a), (b) represent the cross section structure of the summary of the thermal storage member 1 of present embodiment.Herein, (a) in Fig. 1 (a) and Fig. 2 ~ Figure 19 described later represents that latent heat storage material is the state of liquid phase (L), and (b) in Fig. 1 (b) and Fig. 2 ~ Figure 19 described later represents that latent heat storage material is the state of solid phase (S).As shown in Fig. 1 (a), (b), the thermal storage member 1 of present embodiment has the container body 20 of gelatinous latent heat storage material 10 and storage latent heat storage material 10.Thermal storage member 1 entirety of this example has the shape of tabular (such as rectangular flat plate shape).Thermal storage member 1 is such as arranged on the internal face in the storehouse of freezer.

Thermal storage member 1 uses usually in the serviceability temperature scope of regulation and use pressure limit.Such as, thermal storage member 1 by cooled in storehouse and accumulate cold when freezer operates, released cold when the running of freezer stops when having a power failure etc., being made the cold insulation stipulated time in storehouse.Now, the temperature range from the design temperature (storehouse temperature) of freezer during running to the environment temperature (such as room temperature) of freezer setting position is included in the serviceability temperature scope of thermal storage member 1.In addition, the use pressure of thermal storage member 1 is such as atmospheric pressure.

Latent heat storage material 10 in thermal storage member 1 has the phase transition temperature (fusing point) reversibly producing the phase transformation (phase transition of the first kind) between solid phase and liquid phase within the scope of the serviceability temperature of thermal storage member 1.Latent heat storage material 10 becomes the liquid phase (L) as shown in Fig. 1 (a) in the temperature higher than phase transition temperature, becomes the solid phase (S) shown in Fig. 1 (b) in the temperature lower than phase transition temperature.

The latent heat storage material 10 of present embodiment is containing alkane.Alkane refers to general expression C _nh _2n+2the general name of the saturated chain hydrocarbon represented.The fusing point of alkane is different according to the difference of carbon number n.In the present embodiment, n-tetradecane (molecular formula: C is such as used as latent heat storage material 10 ₁₄h ₃₀).The fusing point (5.9 DEG C) of n-tetradecane is included within the scope of the serviceability temperature of thermal storage member 1.In addition, the boiling point of n-tetradecane is about 250 DEG C.

Containing the gel making alkane gelation (solidification) in latent heat storage material 10.Gel (chemical gel) refers to that molecule passes through to be cross-linked to form three-dimensional reticulated structure, lyosoption and swelling therein and the material that obtains.As long as gel structure is destroyed would not be melted, be chemically stable.As long as make gel that alkane contains several % by weight will produce the effect of gelation.In latent heat storage material 10 after gelling, gel becomes the polymer (polymer) with at least large than the molecular weight of alkane molecular weight (such as molecular weight more than 10000).

The gel used in present embodiment contains polymeric material.In addition, as polymeric material, polyethylene is used.That is, the latent heat storage material 10 of present embodiment be by polyethylene gel after containing poly alkane.By adjusting poly mixed proportion, the viscosity of latent heat storage material 10 can be changed.The poly fusing point used in this example is 130 DEG C.

Containing poly alkane, by adopting appropriate polyethylene, all can not flow at 70 DEG C ~ 80 DEG C, even if alkane phase transformation between solid phase and liquid phase, entirety also maintains solid state, does not have mobility.Therefore, at least within the scope of the serviceability temperature of latent heat storage material 10, not there is mobility containing poly alkane.Like this, gelatinous latent heat storage material 10 can maintain solid state in the front and back entirety of phase transformation, therefore easily uses.

Latent heat storage material 10 changes at the front and back volume of phase transformation.Such as containing poly alkane when being phase-changed into solid phase from liquid phase, shrinking with the volume change specified.

In general, the latent heat exchanged with outside is accumulated as heat energy when the phase transformation of material by latent heat storage material.Such as, utilize in the accumulation of heat of the phase transformation between solid-liquid, utilize the heat of fusion of the fusing point of latent heat storage material.When phase transformation, as long as solid and liquid two-phase mixtures exist, will continue to capture heat from outside under certain phase transition temperature, temperature therefore can be suppressed in the long time to rise to more than fusing point.

Container body 20 is the hollow box bodies with rectangular-shaped profile.The container body 20 of this example has and separates by the first component 30 of rectangular flat plate shape with first component 30 structure being formed as the container-like second component 40 in the shallow end and combining in the mode being formed with space in inner side.Second component 40 has: the bottom surface sections 41 of identical with first component 30 shape (rectangular flat plate shape); With each limit being arranged at bottom surface sections 41,4 side surface part vertical with bottom surface sections 41 (only illustrate two side surface part 42,44 in Fig. 1 (a), (b).Below sometimes 4 side surface part comprising side surface part 42,44 are called " side surface part 42,44 etc. ").Bottom surface sections 41 and side surface part 42,44 etc. form the accommodation space of 5 besieged regulations in direction.First component 30 and second component 40 are oppositely disposed with first component 30 and bottom surface sections 41, the accommodation space of second component 40 airtightly by airtight mode, be such as engaged with each other by bonding agent.Thus, form in the inner side of first component 30 and second component 40 airtight space receiving latent heat storage material 10.That is, the thermal storage member 1 of present embodiment has the structure of closed system.Even if the contraction had due to latent heat storage material 10 of such as first component 30 and second component 40 causes the pressure drop of airtight space, also and the rigidity of the degree of being less out of shape.

First component 30 is formed by with the polyethylene (or containing poly material) higher containing the compatibility of poly alkane being used as latent heat storage material 10.That is, in this example, latent heat storage material 10 contains the material identical with the formation material of first component 30 as gel.First component 30 is formed by the polyethylene higher with the compatibility containing poly alkane, thus, is attached to latent heat storage material 10 with higher tack.The tack of latent heat storage material 10 and first component 30 such as can by order to peel off required energy to evaluate from first component 30 by the latent heat storage material 10 being attached to first component 30.

Thermal storage member 1 uses towards the mode of inhaling heat release object (air in such as freezer) side with the outer surface of first component 30, and this suction heat release object is the object that latent heat storage material 10 carries out heat absorption and release.Thus, first component 30 uses as making the dividing plate of heat movement between latent heat storage material 10 and suction heat release object.On the other hand, the bottom surface sections 41 of second component 40 is configured in the face (heat insulation side) of the side contrary with inhaling heat release object.

Second component 40 is formed by with the polypropylene lower than polyethylene containing the compatibility of poly alkane being used as latent heat storage material 10.Thus, second component 40 can be attached to latent heat storage material 10 with the tack lower than the tack of first component 30 and latent heat storage material 10.The tack of latent heat storage material 10 and second component 40, such as can by peeling off required energy to evaluate from second component 40 by the latent heat storage material 10 being attached to second component 40.In the present embodiment, latent heat storage material 10 is peeled off required energy from first component 30 to be greater than latent heat storage material 10 is peeled off required energy from second component 40.Therefore, when to be clamped from latent heat storage material 10 by first component 30 and second component 40 and the state being simultaneously attached to both by first component 30 and second component 40 drawn apart from one another time, latent heat storage material 10 keeps peeling off from second component 40 with being attached to the state of first component 30.

As shown in Fig. 1 (a), the latent heat storage material 10 (L) being such as in the state of liquid phase is not at room temperature filled in the airtight space of container body 20 inside with almost having space.Latent heat storage material 10 (L) is attached to the inner surface of first component 30 and the inner surface of second component 40 (bottom surface sections 41 and side surface part 42,44 etc.).

On the other hand, as shown in Fig. 1 (b), becoming the latent heat storage material 10 (S) of solid phase being cooled to the low-melting temperature of specific latent heat heat-storing material 10 from liquid phase mutually, shrinking with the volume change specified relative to latent heat storage material 10 (L).In addition, container body 20 has higher rigidity, is therefore less out of shape.Thus, latent heat storage material 10 (S) keeps being attached to the state of the relatively high first component of tack 30, from strippings such as the bottom surface sections 41 of the relatively low second component 40 of tack and side surface part 42,44.Latent heat storage material 10 (S) such as has the roughly trapezoidal cross sectional shape longer than the upper base of bottom surface sections 41 side of going to the bottom of first component 30 side.At latent heat storage material 10 (S) and between bottom surface sections 41 and side surface part 42,44 etc., the decompression layer 50 that mineralization pressure is lower than the environmental pressure (such as atmospheric pressure) around thermal storage member 1.Decompression layer 50 is formed as stratiform throughout latent heat storage material 10 (S) and the roughly whole face between bottom surface sections 41 and side surface part 42,44 etc.

Herein, gelatinous latent heat storage material 10 does not have mobility, and therefore under liquid phase state or in from liquid phase to the process of solid phase phase transformation, latent heat storage material 10 (L) can not flow down downwards.Therefore, the latent heat storage material 10 (S) of solid phase and the shape of decompression layer 50 do not rely on the configuration posture of thermal storage member 1 and the relation of vertical substantially.

When temperature (such as room temperature) that the fusing point getting back to specific latent heat heat-storing material 10 from the state shown in Fig. 1 (b) is high, latent heat storage material 10 becomes liquid phase mutually from solid phase, expands with the volume change specified.Thus, thermal storage member 1 gets back to the state shown in Fig. 1 (a).

Then, simply an example of the manufacture method of the thermal storage member 1 of present embodiment is described.First, formed the first component 30 of the rectangular flat plate shape formed by polyethylene respectively by injection moulding, and the second component 40 that the shallow end formed by polypropylene is container-like.In addition, make the polyethylene containing several % by weight in alkane, thus form gelatinous latent heat storage material 10.Then, in the accommodation space surrounded by the bottom surface sections 41 of second component 40 and side surface part 42,44 etc., the latent heat storage material 10 of gel filled shape very close to each otherly.Then, to be filled with the accommodation space of latent heat storage material 10 by mode airtight airtightly, use bonding agent to be engaged with each other by the outer frame part of the end faces of frame-shaped such as the side surface part 42,44 of second component 40 and the inner surface of first component 30.By above order, produce the thermal storage member 1 of present embodiment.

As discussed above, the feature of the thermal storage member 1 of present embodiment is, comprising: the gelatinous latent heat storage material 10 changed at the front and back volume of the phase transformation along with latent heat; The first component 30 of latent heat storage material 10 is attached to the first tack; With clip latent heat storage material 10 and be oppositely disposed with first component 30, the second component 40 of latent heat storage material 10 can be attached to the second tack lower than the first tack.

According to this structure, when latent heat storage material 10 shrinks due to phase transformation, latent heat storage material 10 (S) can be made to keep peeling off from the bottom surface sections 41 of second component 40 with being attached to the state of first component 30.Thereby, it is possible to make latent heat storage material 10 be biased in first component 30 side, space (decompression layer 50) is made to be biased in second component 40 side, therefore, it is possible to make latent heat storage material 10 be separated in container body 20 inner lamination with decompression layer 50.Therefore, decompression layer 50 can not be formed in first component 30 side, therefore, it is possible to prevent the heat transfer in latent heat storage material 10, the heat through first component 30 between latent heat storage material 10 and outside (inhaling heat release object) moves and is depressurized layer 50 and hinders.Thus the suction exothermicity of thermal storage member 1 can be improved.

In addition, between second component 40 and latent heat storage material 10, form the decompression layer 50 of stratiform.Decompression layer 50 is formed by the gas of the high low pressure of vacuum, and therefore, compared with atmospheric gas blanket, molecular density is low, pyroconductivity is low.Thereby, it is possible to suppress externally to release heat from latent heat storage material 10 through second component 40.Thus the heat loss of thermal storage member 1 can be reduced, improve thermal insulation.That is, according to the present embodiment, outer shape shifting ground can not be made to obtain inhaling all excellent thermal storage member 1 of exothermicity and thermal insulation.In addition, according to circumstances, latent heat storage material 10 also likely has vapour pressure, and the steam of latent heat storage material 10 accumulates sometimes on a small quantity in decompression layer 50.But in most cases this vapour pressure is fully low compared with atmospheric pressure, the layer 50 that therefore reduces pressure has sufficient vacuum, less on the impact of insulative properties.Particularly near phase transition temperature, vapour pressure is almost 0, therefore by using near phase transition temperature, can obtain high effect of heat insulation.In addition, the latent heat storage material 10 becoming steam also has latent heat, but its latent heat amount is fully little compared with the latent heat amount of parts entirety.Steam is become by latent heat storage material 10 and the loss etc. brought therefore, it is possible to ignore.

In addition, the feature of the thermal storage member 1 of present embodiment is: first component 30 is as making heat at latent heat storage material 10 and the dividing plate inhaling movement between heat release object, and this suction heat release object is the object that this latent heat storage material 10 carries out neither endothermic nor exothermic.According to this structure, suction heat release can be carried out, therefore, it is possible to utilize the suction exothermicity of the excellence of thermal storage member 1 efficiently in first component 30 side of inhaling exothermicity excellence to suction heat release object.

In addition, the feature of the thermal storage member 1 of present embodiment is: latent heat storage material 10 does not have mobility within the scope of serviceability temperature.According to this structure, when latent heat storage material 10 shrinks due to phase transformation, the configuration posture of thermal storage member 1 and the relation ground of vertical can not relied on, the decompression layer 50 of the latent heat storage material 10 of first component 30 side with second component 40 side is layeredly separated.

In addition, the feature of the thermal storage member 1 of present embodiment is: latent heat storage material 10 before being in phase transformation and phase transformation after in a side time be attached to first component 30 and second component 40, before being in phase transformation and phase transformation after in the opposing party time peel off from second component 40.According to this structure, when latent heat storage material 10 shrinks due to phase transformation, the latent heat storage material 10 of first component 30 side can be separated with decompression layer 50 stratiform of second component 40 side.

In addition, the feature of the thermal storage member 1 of present embodiment is: first component 30 and second component 40 are formed by the mutually different materials that formed.According to this structure, can easily make first component 30 higher with the tack of latent heat storage material 10 than second component 40 with the tack of latent heat storage material 10.

[the second embodiment]

Then, use Fig. 2 and Fig. 3 that the thermal storage member of the second embodiment of the present invention is described.Fig. 2 (a), (b) represent the cross section structure of the summary of the thermal storage member 2 of present embodiment.In addition, to the thermal storage member 1 of the first embodiment, there is the inscape of identical function and efficacy, mark identical Reference numeral and the description thereof will be omitted.

As shown in Fig. 2 (a), (b), the thermal storage member 2 of present embodiment, compared with the thermal storage member 1 of the first embodiment, is characterised in that the passage 62,64 that the outflow being formed with the gas that can realize inside and outside container body 20 flows into.That is, the thermal storage member 2 of present embodiment has not closed system but the structure of open system.Inner at container body 20, be formed with the open space opened to the environmental pressure (such as atmospheric pressure) around thermal storage member 2.Passage 62 is formed in the position by bottom surface sections 41 (such as the adjacent corner of side surface part 42 and bottom surface sections 41) in the side surface part 42 of second component 40.Passage 64 is formed in the position by bottom surface sections 41 (such as the adjacent corner of side surface part 44 and bottom surface sections 41) in side surface part 44.

As shown in Fig. 2 (a), the latent heat storage material 10 (L) being in the state of liquid phase is filled in the open space of container body 20 inside almost very close to each otherly.Latent heat storage material 10 (L) is attached on the inner surface of first component 30 and the inner surface of second component 40 (bottom surface sections 41 and side surface part 42,44 etc.).

On the other hand, as shown in Fig. 2 (b), become the latent heat storage material after solid phase 10 (S) mutually from liquid phase and shrink with the volume change specified relative to latent heat storage material 10 (L).Thus, latent heat storage material 10 (S) remains adhered to the state ground of the relatively high first component of tack 30, from strippings such as the bottom surface sections 41 of the relatively low second component 40 of tack and side surface part 42,44.In addition, with the contraction of latent heat storage material 10, air flows into the open space of container body 20 inside via passage 62,64 from outside.Thus, air layer 52 is formed at latent heat storage material 10 (S) and between bottom surface sections 41 and side surface part 42,44 etc.Air layer 52 is formed as stratiform throughout latent heat storage material 10 (S) and the roughly whole face between bottom surface sections 41 and side surface part 42,44 etc.

Herein, when the flow flowing out leaked-in air between container body 20 outside and air layer 52 becomes large, heat trnasfer may be promoted due to the convection current in air layer 52, the effect of heat insulation of air layer 52 is declined.Thus, in order to suppress the outflow through the air of passage 62,64 to flow into, preferably make the diameter (internal diameter) of passage 62,64 narrow extremely to a certain degree.

According to the present embodiment, following effect can be obtained compared with the first embodiment.

The feature of the thermal storage member 2 of present embodiment is: latent heat storage material 10 is incorporated in the container body 20 that at least use first component 30 and second component 40 are formed, the passage 62,64 that the outflow that container body 20 has the gas that can realize inside and outside this container body 20 flows into.

According to this structure, when latent heat storage material 10 shrinks due to phase transformation, latent heat storage material 10 can be made to be biased in first component 30 side, make air layer 52 be biased in second component 40 side, therefore, it is possible to make latent heat storage material 10 layeredly be separated with air layer 52.Therefore, it is possible to prevent the heat transfer in latent heat storage material 10 or the heat movement through first component 30 between latent heat storage material 10 and outside from being hindered by air layer 52.Thus the suction exothermicity of thermal storage member 2 can be improved.

The air layer 52 of stratiform is formed between second component 40 and latent heat storage material 10.Air layer 52 compares with liquid, solid-phase, and molecular density is low, pyroconductivity is low.Thereby, it is possible to suppress externally to shed heat from latent heat storage material 10 through second component 40.Thus the heat loss of thermal storage member 2 can be reduced, can thermal insulation be improved.

In addition, space opening in the container body 20 of latent heat storage material 10 is filled with in environmental pressure, even if therefore because phase transformation causes the Volume Changes of latent heat storage material 10, also pressure differential can not be produced inside and outside container body 20.Therefore, according to the present embodiment, distortion and the mechanical damage of container body 20 can be prevented.

In addition, in the present embodiment, passage 62,64 is formed in the position by bottom surface sections 41 of side surface part 42,44.Easily there is stripping during latent heat storage material 10 volume contraction in this position, therefore passage 62,64 seldom can be blocked by latent heat storage material 10 earlier.Therefore, according to the present embodiment, can pass air into more reliably in container body 20 when latent heat storage material 10 volume contraction.

On the other hand, when latent heat storage material 10 is from solid phase to liquid phase phase transformation, namely during latent heat storage material 10 volumetric expansion, the latent heat storage material 10 close to side surface part 42,44 comparatively early undergoes phase transition and expands.Therefore, in the volumetric expansion of latent heat storage material 10, passage 62,64 is first blocked, before latent heat storage material 10 entirety becomes liquid phase mutually, may be held in the state formation confined space of the inside in container body 20 with air.Now, can not get back to the state shown in Fig. 2 (a) when latent heat storage material 10 entirety becomes liquid phase mutually, the part between latent heat storage material 10 (L) and bottom surface sections 41 remains the air be put into.Thus, produce stress at container body 20 accordingly with the amount of residual air, likely cause the parts breakage of container body 20, distortion.

Fig. 3 (a), (b), as preventing the structure that above-mentioned parts are damaged and be out of shape, show modified embodiment of the present embodiment.As shown in Fig. 3 (a), (b), in the present embodiment, near the central portion of bottom surface sections 41, be provided with the passage 66 had with passage 62,64 identical structures.Thus, in the volumetric expansion of latent heat storage material 10, (midway changed from Fig. 3 (b) to Fig. 3 (a)) is even if passage 62,64 blocked, and the air in container body 20 also can not be enclosed but externally release from passage 66.Therefore, the state shown in Fig. 3 (a) can be got back to when latent heat storage material 10 entirety becomes liquid phase mutually.Therefore, according to this variation, the parts breakage of container body 20, distortion can be prevented more reliably.

[the 3rd embodiment]

Then, use Fig. 4 that the thermal storage member of the 3rd embodiment of the present invention is described.Fig. 4 (a), (b) represent the cross section structure of the summary of the thermal storage member 3 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment has an identical function and efficacy and the description thereof will be omitted.

As shown in Fig. 4 (a), (b), the thermal storage member 3 of present embodiment, compared with the thermal storage member 1 of the first embodiment, is characterised in that and is provided with hollow and spherical seal member 70 at the airtight space of container body 20 inside.Seal member 70 has the diameter (external diameter) at the interval between the bottom surface sections 41 equaling first component 30 and second component 40.Seal member 70 such as by with the compatibility of latent heat storage material 10 than first component 30 to form material low and formed than the material forming material high of second component 40.That is, seal member 70 is lower with the tack of latent heat storage material 10 than first component 30 with the tack of latent heat storage material 10, higher with the tack of latent heat storage material 10 than second component 40.Even if seal member 70 volume contraction had due to latent heat storage material 10 causes the pressure drop of airtight space, the rigidity of the degree at the interval between first component 30 and bottom surface sections 41 also can be maintained.In addition, seal member 70 is such as provided with multiple (in Fig. 4 (a), (b), being expressed as 2) with the configuration density that can maintain the degree at the interval of first component 30 and bottom surface sections 41 throughout the entirety of container body 20.Heat-barrier material 72 is sealed with in the inside of seal member 70.The pyroconductivity of the pyroconductivity of heat-barrier material 72 at least specific latent heat heat-storing material 10 is low.In this example, the pyroconductivity of the thermal conductivity ratio first component 30 of heat-barrier material 72 and the formation material of second component 40 is low.Such as air can be used as heat-barrier material 72.

As shown in Fig. 4 (a), the latent heat storage material 10 (L) being in the state of liquid phase is filled with the space except the space shared by seal member 70 in the airtight space of container body 20 inside almost very close to each otherly.Latent heat storage material 10 (L) is attached to the inner surface of first component 30 and the inner surface of second component 40 (bottom surface sections 41 and side surface part 42,44 etc.).

On the other hand, as shown in Fig. 4 (b), the latent heat storage material 10 (S) becoming solid phase from liquid phase mutually shrinks with the volume change specified relative to latent heat storage material 10 (L).The interval of first component 30 and bottom surface sections 41 is maintained by seal member 70.Therefore, latent heat storage material 10 (S) remains adhered to the state of the relatively high first component of tack 30, from the stripping such as bottom surface sections 41 and side surface part 42,44 of the relatively low second component 40 of tack.Thus, form at latent heat storage material 10 (S) and between bottom surface sections 41 and side surface part 42,44 etc. the layer 50 that reduces pressure.Decompression layer 50 latent heat storage material 10 (S) and between bottom surface sections 41 and side surface part 42,44 etc. stratiform formed.

According to the present embodiment, compared with the first embodiment, following effect can be obtained.

The feature of the thermal storage member 3 of present embodiment is: also have and be arranged between first component 30 and second component 40, maintains the interval maintaining member (seal member 70) at the interval of the bottom surface sections 41 of first component 30 and second component 40.

According to this structure, though latent heat storage material 10 due to phase transformation volume contraction, cause the pressure drop in airtight space, the interval of first component 30 and bottom surface sections 41 also can be maintained by interval maintaining member.Therefore, according to the present embodiment, distortion, the mechanical damage of container body 20 can be prevented.

In addition, the feature of the thermal storage member 3 of present embodiment is: interval maintaining member (seal member 70) is formed as having the spherical shape of the diameter at the interval equaling first component 30 and bottom surface sections 41.According to this structure, the interval that the ground such as the gradient of the interval maintaining member relative to first component 30 or bottom surface sections 41 maintain first component 30 and bottom surface sections 41 more reliably can not relied on.

In addition, the feature of the thermal storage member 3 of present embodiment is: interval maintaining member has: the seal member (capsuleparts) 70 of hollow spheres; With the heat-barrier material 72 be enclosed in seal member 70.According to this structure, can suppress externally to release heat from latent heat storage material 10 through second component 40.Therefore, it is possible to reduce the heat loss of thermal storage member 3, improve thermal insulation.

In addition, in the present embodiment, enumerated the example being provided with seal member 70 in the container body 20 of the thermal storage member 3 of closed system, but also seal member 70 can be set in the container body 20 of the thermal storage member of open system.

[the 4th embodiment]

Then, use Fig. 5 that the thermal storage member of the 4th embodiment of the present invention is described.Fig. 5 (a), (b) represent the cross section structure of the summary of the thermal storage member 4 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment or the thermal storage member 3 of the 3rd embodiment have an identical function and efficacy and the description thereof will be omitted.

As shown in Fig. 5 (a), (b), the thermal storage member 4 of present embodiment, compared to the 3rd embodiment, is characterised in that and is sealed with heat-storing material 74 in seal member 70.As heat-storing material 74, such as, can use the gel latent heat storage material identical with latent heat storage material 10.In addition, other gel latent heat storage material different from latent heat storage material 10, un-grated latent heat storage material, sensible heat heat-storing material etc. can also be used as heat-storing material 74.During as the gel heat-storing material that heat-storing material 74 use is identical with latent heat storage material 10, as shown in Fig. 5 (b), at latent heat storage material 10 due to phase transformation during volume contraction, the heat-storing material 74 in seal member 70 carries out phase transformation and volume contraction too.

The feature of the thermal storage member 4 of present embodiment is: interval maintaining member has: the seal member 70 of hollow spheres; With the heat-storing material 74 be enclosed in seal member 70.According to this structure, compared with the 3rd embodiment, the accumulation of heat quantitative change as thermal storage member 4 entirety can be made large.

[the 5th embodiment]

Then, use Fig. 6 that the thermal storage member of the 5th embodiment of the present invention is described.Fig. 6 (a), (b) represent the cross section structure of the summary of the thermal storage member 5 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment has an identical function and efficacy and the description thereof will be omitted.

As shown in Fig. 6 (a), (b), the thermal storage member 5 of present embodiment is compared with the thermal storage member 1 of the first embodiment, be characterised in that: in the airtight space of container body 20 inside, be provided with the airtrapping portion 82,84 that all there is not latent heat storage material 10 in the front and back of phase transformation.Airtrapping portion 82 is layeredly arranged throughout the whole face between latent heat storage material 10 and the side surface part 42 of second component 40.Airtrapping portion 84 is layeredly arranged throughout the whole face between latent heat storage material 10 and the side surface part 44 of second component 40.Air is sealed with in airtrapping portion 82,84.In addition, also can not enclose air in airtrapping portion 82,84 and enclose other gases such as non-active gas.In addition, also airtrapping portion can layeredly be formed between two the not shown side surface part beyond side surface part 42,44 and latent heat storage material 10.

As shown in Fig. 6 (a), the latent heat storage material 10 (L) being in the state of liquid phase is filled with the part in the airtight space of container body 20 inside except the airtrapping portion 82 along side surface part 42 and the airtrapping portion 84 along side surface part 44.That is, in this example, latent heat storage material 10 (L) is attached to first component 30 and bottom surface sections 41, is not attached to side surface part 42,44.

On the other hand, as shown in Fig. 6 (b), the latent heat storage material 10 (S) becoming solid phase mutually from liquid phase remains adhered to the state of the relatively high first component of tack 30, peels off from the bottom surface sections 41 of the relatively low second component 40 of tack.Thus, between latent heat storage material 10 (S) and bottom surface sections 41, layeredly the layer 51 that reduces pressure is formed.

The feature of the thermal storage member 5 of present embodiment is: latent heat storage material 10 is incorporated in the container body 20 that at least use first component 30 and second component 40 are formed airtightly, is formed with the airtrapping portion (gas compartment) 82,84 that all there is not latent heat storage material 10 in the front and back of phase transformation in container body 20.

Present embodiment and the first embodiment are compared, in the thermal storage member 1 of the first embodiment, latent heat storage material 10 (L) is filled in (with reference to Fig. 1 (a)) in airtight space almost very close to each otherly, and the air ratio being therefore present in airtight space is less.On the other hand, in the thermal storage member 5 of present embodiment, in airtight space, be provided with airtrapping portion 82,84, the air ratio being therefore present in airtight space is more.Thus, in the present embodiment, the pressure of the decompression layer 50 of pressure ratio first embodiment of the decompression layer 51 formed by the volume contraction of latent heat storage material 10 can be made high.Therefore, according to the present embodiment, in the thermal storage member 5 of closed system, the pressure differential inside and outside due to container body 20 can be made and relax at the stress that container body 20 produces, thus distortion and the mechanical damage of container body 20 can be prevented.

[the 6th embodiment]

Then, use Fig. 7 that the thermal storage member of the 6th embodiment of the present invention is described.Fig. 7 (a), (b) represent the cross section structure of the summary of the thermal storage member 6 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment has an identical function and efficacy and the description thereof will be omitted.

As shown in Fig. 7 (a), (b), the thermal storage member 6 of present embodiment is compared with the thermal storage member 1 of the first embodiment, be characterised in that, be provided with: the side surface part 42 of second component 40 is to the outside bulging of container body 20 and the bulge 88 formed; With the airtrapping portion 86 formed in the inner side of bulge 88.

Bulge 88 is such as formed throughout the entirety of side surface part 42 on the paper depth direction of Fig. 7 (a), (b).The bulge 88 of this example is integrally formed by identical material with side surface part 42,44 etc. with the bottom surface sections 41 of second component 40, but also after bulge 88 and second component 40 being separated and being shaped, can be engaged airtightly by this bulge 88 with second component 40.

Airtrapping portion 86 forms a part for the airtight space in container body 20.All latent heat storage material 10 is there is not in the front and back of phase transformation in airtrapping portion 86.Airtrapping portion 86, through being arranged at the interconnecting part 87 of side surface part 42, is communicated with the space being filled with latent heat storage material 10 in airtight space.Interconnecting part 87 is arranged on the position by bottom surface sections 41 in side surface part 42.

As shown in Fig. 7 (a), the latent heat storage material 10 (L) being in the state of liquid phase is filled with the part in the airtight space of container body 20 inside except airtrapping portion 86 and interconnecting part 87.Latent heat storage material 10 (L) is attached to the inner surface except the part of airtrapping portion 86 and interconnecting part 87 in the inner surface of first component 30 and second component 40.

On the other hand, as shown in Fig. 7 (b), the latent heat storage material 10 (S) becoming solid phase from liquid phase mutually keeps being attached to the state of the relatively high first component of tack 30, from strippings such as the bottom surface sections 41 of the relatively low second component 40 of tack and side surface part 42,44.Thus, form at latent heat storage material 10 (S) and between bottom surface sections 41 and side surface part 42,44 etc. the layer 51 that reduces pressure.

In the present embodiment, in the airtight space of container body 20 inside, be provided with airtrapping portion 86, therefore same with the 5th embodiment, the air ratio being present in airtight space can be made more.Thus, in the present embodiment, the pressure of the decompression layer 50 of pressure ratio first embodiment of the decompression layer 51 formed by the volume contraction of latent heat storage material 10 can be made high.Therefore, according to the present embodiment, in the thermal storage member 6 of closed system, the pressure differential inside and outside due to container body 20 can be made and relax at the stress that container body 20 produces, therefore, it is possible to prevent distortion and the mechanical damage of container body 20.

[the 7th embodiment]

Then, use Fig. 8 that the thermal storage member of the 7th embodiment of the present invention is described.Fig. 8 (a), (b) represent the cross section structure of the summary of the thermal storage member 7 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment has an identical function and efficacy and the description thereof will be omitted.

As shown in Fig. 8 (a), (b), the thermal storage member 7 of present embodiment, compared with the thermal storage member 1 of the first embodiment, is characterised in that and is provided with airtrapping portion 89 in the airtight space of container body 20 inside.Airtrapping portion 89 is layeredly arranged throughout the whole face between latent heat storage material 10 (L) and bottom surface sections 41.

As shown in Fig. 8 (a), the latent heat storage material 10 (L) being in the state of liquid phase is filled with in the airtight space of container body 20 inside except along the part except the airtrapping portion 89 of bottom surface sections 41.That is, in this example, latent heat storage material 10 (L) is attached to first component 30 and side surface part 42,44 etc., is not attached to bottom surface sections 41.In this condition, the interval of latent heat storage material 10 (L) and bottom surface sections 41 and the thickness in airtrapping portion 89 are D1.

On the other hand, as shown in Fig. 8 (b), the latent heat storage material 10 (S) becoming solid phase from liquid phase mutually keeps being attached to the state of the relatively high first component of tack 30, from strippings such as the side surface part 42,44 of the relatively low second component 40 of tack.Thus, form at latent heat storage material 10 (S) and between bottom surface sections 41 and side surface part 42,44 etc. the layer 51 that reduces pressure.In this condition, namely the reduce pressure thickness of layer 51 of the interval of latent heat storage material 10 (S) and bottom surface sections 41 is the D2 wider than interval D 1.

The feature of the thermal storage member 7 of present embodiment is to have: the gelatinous latent heat storage material 10 changed at the front and back volume of the phase transformation with latent heat; Be attached to the first component 30 of latent heat storage material 10; Clip latent heat storage material 10 to be oppositely disposed with first component 30, the bottom surface sections 41 do not contacted with latent heat storage material 10; The gas blanket (airtrapping portion 89 or the layer 51 that reduces pressure) formed between latent heat storage material 10 and bottom surface sections 41.

According to this structure, in the airtight space of container body 20 inside, be provided with airtrapping portion 89, therefore same with the 5th embodiment, the air ratio being present in airtight space can be made more.Thus, in the present embodiment, the pressure of the decompression layer 50 of pressure ratio first embodiment of the decompression layer 51 that the volume contraction due to latent heat storage material 10 can be made to be formed is high.Therefore, according to the present embodiment, in the thermal storage member 7 of closed system, the pressure differential inside and outside due to container body 20 can be made and relaxes at the stress that container body 20 produces, therefore, it is possible to prevent distortion and the mechanical damage of container body 20.

[the 8th embodiment]

Then, use Fig. 9 that the thermal storage member of the 8th embodiment of the present invention is described.Fig. 9 (a), (b) represent the cross section structure of the summary of the thermal storage member 8 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment has an identical function and efficacy and the description thereof will be omitted.

As shown in Fig. 9 (a), (b), the thermal storage member 8 of present embodiment, compared with the thermal storage member 1 of the first embodiment, is characterised in that: the pillar (interval maintaining member) 90 with the shape of column is arranged on the airtight space of container body 20 inside.Pillar 90 such as has columned shape.A bottom surface of pillar 90 contacts with the inner surface of first component 30, such as, be adhesively fixed with this surface.Another bottom surface of pillar 90 contacts with the inner surface of the bottom surface sections 41 of second component 40, such as, be adhesively fixed with this surface.Pillar 90 has the height at the interval equaling first component 30 and bottom surface sections 41.Pillar 90 such as by with the compatibility of latent heat storage material 10 than first component 30 to form material low and formed than the material forming material high of second component 40.That is, pillar 90 is lower with the tack of latent heat storage material 10 than first component 30 with the tack of latent heat storage material 10, higher with the tack of latent heat storage material 10 than second component 40.Even if pillar 90 volume contraction had due to latent heat storage material 10 causes the pressure drop of airtight space, the rigidity of the degree at the interval of first component 30 and bottom surface sections 41 also can be maintained.In addition, pillar 90 is such as provided with multiple (in Fig. 9 (a), (b), illustrating 3) with the configuration density that can maintain the degree at the interval of first component 30 and bottom surface sections 41 throughout the entirety of container body 20.Pillar 90 is formed by the material that pyroconductivity is lower.Such as, the pyroconductivity of the thermal conductivity ratio latent heat storage material 10 of the formation material of pillar 90 is low.In addition, the pyroconductivity of the thermal conductivity ratio first component 30 of the formation material of such as pillar 90 and the formation material of second component 40 is low.

As shown in Fig. 9 (a), the latent heat storage material 10 (L) being in the state of liquid phase does not almost have compartment of terrain to be filled with space in the airtight space of container body 20 inside except the space shared by pillar 90.Latent heat storage material 10 (L) is attached to the inner surface of first component 30 and the inner surface of second component 40 (bottom surface sections 41 and side surface part 42,44 etc.).

On the other hand, as shown in Fig. 9 (b), the latent heat storage material 10 (S) becoming solid phase from liquid phase mutually shrinks with the volume change specified relative to latent heat storage material 10 (L).The interval of first component 30 and bottom surface sections 41 is maintained by pillar 90.Therefore, latent heat storage material 10 (S) keeps being attached to the state of the relatively high first component of tack 30, from strippings such as the bottom surface sections 41 of the relatively low second component 40 of tack and side surface part 42,44.Thus, at latent heat storage material 10 (S) and the decompression layer 50 forming stratiform between bottom surface sections 41 and side surface part 42,44 etc.

The feature of the thermal storage member 8 of present embodiment is, also has and is arranged between first component 30 and second component 40, maintains the interval maintaining member (pillar 90) at the interval of the bottom surface sections 41 of first component 30 and second component 40.According to this structure, even if latent heat storage material 10 is due to phase transformation, volume contraction causes the pressure drop in airtight space, and pillar 90 also can be utilized to maintain the interval of first component 30 and bottom surface sections 41.Therefore, according to the present embodiment, distortion and the mechanical damage of container body 20 can be prevented.

In addition, the feature of the thermal storage member 8 of present embodiment is: interval maintaining member (pillar 90) is formed as having the shape of the column of the height at the interval equaling first component 30 and bottom surface sections 41.The pillar 90 with the shape of column is high in the intensity of short transverse, therefore, it is possible to maintain the interval of first component 30 and bottom surface sections 41 more reliably.

In addition, the feature of the thermal storage member 8 of present embodiment is: pillar 90 is formed by the material that pyroconductivity is low.According to this structure, can suppress externally to release heat from latent heat storage material 10 through second component 40.Thus the heat loss of thermal storage member 8 can be reduced, improve thermal insulation.

In addition, in the present embodiment, enumerate the example being provided with pillar 90 in the container body 20 of the thermal storage member 8 of closed system, but also pillar 90 can be set in the container body 20 of the thermal storage member of open system.

[the 9th embodiment]

Then, use Figure 10 that the thermal storage member of the 9th embodiment of the present invention is described.Figure 10 (a), (b) represent the cross section structure of the summary of the thermal storage member 9 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment or the thermal storage member 2 of the second embodiment have an identical function and efficacy and the description thereof will be omitted.

As shown in Figure 10 (a), (b), the thermal storage member 9 of present embodiment, compared with the thermal storage member 2 of the second embodiment, is characterised in that: in passage 62,64, be respectively arranged with porous body 102,104.As porous body 102,104, use the continuous multi-hole body (such as polyurathamc etc.) being formed with the small continuous aperture that multiple permission gas passes through.Porous body 102 is filled in passage 62, and porous body 104 is filled in passage 64.

As shown in Figure 10 (a), the latent heat storage material 10 (L) being in the state of liquid phase does not almost have compartment of terrain to be filled in the open space of container body 20 inside.Latent heat storage material 10 (L) is attached to the inner surface of first component 30 and the inner surface of second component 40 (bottom surface sections 41 and side surface part 42,44 etc.).

On the other hand, as shown in Figure 10 (b), the latent heat storage material 10 (S) becoming solid phase from liquid phase mutually shrinks with the volume change specified relative to latent heat storage material 10 (L).Latent heat storage material 10 (S) keeps being attached to the state of the relatively high first component of tack 30, from strippings such as the bottom surface sections 41 of the relatively low second component 40 of tack and side surface part 42,44.In addition, along with the contraction of latent heat storage material 10, the porous body 102,104 of air from outside through being arranged at passage 62,64 respectively flows into the open space of container body 20 inside.Thus, air layer 52 is formed at latent heat storage material 10 (S) and between bottom surface sections 41 and side surface part 42,44 etc.Air layer 52 becomes with the roughly whole steeped landform between bottom surface sections 41 and side surface part 42,44 etc. throughout latent heat storage material 10 (S).

The feature of the thermal storage member 9 of present embodiment is: the porous body 102,104 that the outflow being provided with the gas suppressed inside and outside container body 20 at passage 62,64 flows into.

When the flow flowing out leaked-in air between container body 20 outside and air layer 52 becomes large, the heat trnasfer caused by convection current in air layer 52 is promoted, and the effect of heat insulation of air layer 52 may decline.In the present embodiment, in passage 62,64, be filled with porous body 102,104 respectively, therefore, it is possible to suppress the outflow through the air of passage 62,64 to flow into as much as possible.Therefore, higher effect of heat insulation can be obtained according to the present embodiment.

Herein, in the respective embodiments described above, enumerated the overall thermal storage member with the shape of tabular, but thermal storage member also can be used to form heat storage container.Figure 11 ~ Figure 13 represents the example of the heat storage container using the thermal storage member of above-mentioned embodiment to be formed.Figure 11 (a), (b) represent the horizontal cross-section of the heat storage container 201 using the thermal storage member 1 of the first embodiment to be formed from top view and the structure seen.As shown in Figure 11 (a), (b), heat storage container 201 entirety has the rectangular-shaped box-formed shape of upper surface open.In addition, heat storage container 201 has double container structure, and it comprises: the first component 230 with the rectangular-shaped box-formed shape of upper surface open; With the outside being configured in first component 230, shape and second component 240 that size than first component 230 large roughly similar to first component 230.Airtight space is formed between first component 230 and second component 240.First component 230 is configured in the internal face side of heat storage container 201.The accommodation space 260 surrounded by the internal face of heat storage container 201 is formed in the inner side of first component 230.Second component 240 is configured in the position that distance accommodation space 260 is farther compared with first component 230.

As shown in Figure 11 (a), the latent heat storage material 210 (L) being in the state of liquid phase fills the airtight space between first component 230 and second component 240 almost very close to each otherly.Latent heat storage material 210 (L) is attached to first component 230 and second component 240.

As shown in Figure 11 (b), the latent heat storage material 210 (S) becoming solid phase from liquid phase mutually shrinks with the volume change specified relative to latent heat storage material 210 (L).Now, latent heat storage material 210 (S) keeps the state being attached to the relatively high first component of tack 230, and the second component 240 relatively low from tack is peeled off.Thus, between latent heat storage material 210 (S) and second component 240, the layer 250 that reduces pressure is formed.

According to this structure, when latent heat storage material 210 shrinks due to phase transformation, latent heat storage material 210 (S) can be made to keep peeling off from second component 240 under the state being attached to first component 230.Thereby, it is possible to make latent heat storage material 210 be biased in first component 230 side, decompression layer 250 is made to be biased in second component 240 side, therefore, it is possible to make latent heat storage material 210 layeredly be separated with decompression layer 250.Therefore, it is possible to prevent from the heat trnasfer in latent heat storage material 210, latent heat storage material 210 and the heat through first component 230 of inhaling between heat release object (air in such as accommodation space 260) from moving being depressurized layer 250 hindering.Thus the heat storage container 201 that can obtain the suction exothermicity excellence of inhaling heat release object.

In addition, between second component 240 and latent heat storage material 210, the layer 250 that reduces pressure is formed with.Decompression layer 250 is made up of the gas of low pressure, and therefore pyroconductivity is low.Thereby, it is possible to suppress externally to release heat from latent heat storage material 210 through second component 240.Thus the latent heat storage material 201 of excellent in heat insulating performance can be obtained.

In addition, the heat storage container 201 shown in Figure 11 (a), (b) can be used as the inwall in the storehouse of freezer, freezer.

Figure 12 (a), (b) represent the horizontal cross-section of the heat storage container 202 using the thermal storage member 1 of the first embodiment to be formed from top view and the structure seen.Heat storage container 202 has having except round-ended cylinder shape of upper surface open except entirety, has the structure same with heat storage container 201, reaches same action effect, therefore omits detailed description.

Figure 13 (a), (b) represent that the heat storage container 203 thermal storage member 1 of use first embodiment formed blocks by the plane comprising vertical and the cross section structure obtained.As shown in Figure 13 (a), (b), heat storage container 203 entirety has the shape that cross section is L-shaped.In addition, heat storage container 203 has: the first component 270 being configured as the tabular of cross section L-shaped; With the second component 280 at the outside of first component 270 and the first component 270 together airtight space of Formation cross-section L-shaped.First component 270 is configured in the internal face side of heat storage container 203.The accommodation space 260 surrounded by the internal face of heat storage container 203 is formed in the space surrounded by the two sides of first component 270.Second component 280 is configured in the farther position of distance accommodation space 260 compared with first component 270.

As shown in Figure 13 (a), the latent heat storage material 210 (L) being in the state of liquid phase is filled in the airtight space between first component 270 and second component 280 almost very close to each otherly.Latent heat storage material 210 (L) is attached to first component 270 and second component 280.

As shown in Figure 13 (b), the latent heat storage material 210 (S) becoming solid phase from liquid phase mutually shrinks with the volume change specified relative to latent heat storage material 210 (L).Now, latent heat storage material 210 (S) keeps the state being attached to the relatively high first component of tack 270, and the second component 280 relatively low from tack is peeled off.Thus, between latent heat storage material 210 (S) and second component 280, Formation cross-section is the decompression layer 250 of L-shaped.According to this structure, with heat storage container 201,202 same, also can obtain inhaling exothermicity and all excellent heat storage container 203 of thermal insulation.

[the tenth embodiment]

Then, use Figure 14 that the thermal storage member of the tenth embodiment of the present invention is described.Figure 14 (a), (b) represent the cross section structure of the summary of the thermal storage member 310 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment has an identical function and efficacy and the description thereof will be omitted.

As shown in Figure 14 (a), (b), in present embodiment, the shape that multiple (such as 4) semi-circular cylindrical portion 40a ~ 40d that second component 40 has semi-circular cylindrical (arciform) links side by side.First component 30 is same with the first embodiment, has the shape of rectangular flat plate shape.First component 30 and second component 40 are combined in the mode forming multiple semi-circular cylindrical space in inner side side by side and engage.Adjacent semi-circular cylindrical space can be interconnected each other, also can be separated from each other.

As shown in Figure 14 (a), the latent heat storage material 10 (L) being in the state of liquid phase is filled in half and half cylindrical space almost very close to each otherly.On the other hand, the latent heat storage material 10 (S) becoming solid phase mutually from liquid phase shrinks with the volume change specified relative to latent heat storage material 10 (L).As shown in Figure 14 (b), latent heat storage material 10 (S) keeps the state being attached to the relatively high first component of tack 30, and the second component 40 relatively low from tack is peeled off.Thus, between latent heat storage material 10 (S) and second component 40, the cross section of working as thermal insulation layer is that the decompression layer 50 of crescent shape is formed at half and half cylindrical space respectively.According to the present embodiment, the effect same with the first embodiment etc. can be reached, and the intensity that thermal storage member 310 resists the load that above-below direction applies from figure can be improved.

[the 11 embodiment]

Then, use Figure 15 that the thermal storage member of the 11 embodiment of the present invention is described.Figure 15 (a), (b) represent the cross section structure of the summary of the thermal storage member 311 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment has an identical function and efficacy and the description thereof will be omitted.

As shown in Figure 15 (a), (b), in present embodiment, the shape that multiple (such as 4) semi-circular cylindrical portion 30a ~ 30d that first component 30 is formed as the shape with semi-circular cylindrical (arciform) links side by side.Mutually adjacent semi-circular cylindrical portion 30a, 30b link through flat linking part 36a.Similarly, semi-circular cylindrical portion 30b, 30c, 30d adjacent one another are link through flat linking part 36b, 36c respectively.Each linking part 36a ~ 36c has the shape of the axially longer rectangular flat plate shape at semi-circular cylindrical portion 30a ~ 30d.Linking part 36a ~ 36c has pliability or the retractility of regulation.

Second component 40 is also same, has the shape that multiple semi-circular cylindrical portion 40a ~ 40d links side by side.Mutually adjacent semi-circular cylindrical portion 40a, 40b, 40c, 40d link through flat linking part 46a, 46b, 46c respectively.Each linking part 46a ~ 46c has the shape of the axially longer rectangular flat plate shape at semi-circular cylindrical portion 40a ~ 40d.Linking part 46a ~ 46c has pliability or the retractility of regulation.First component 30 and second component 40 are combined in the mode forming multiple cylindrical space in inner side side by side and engage.In this example, corresponding linking part 36a, 36b, 36c and be also bonded with each other between linking part 46a, 46b, 46c, the linking part after adjacent cylindrical space clips joint each other and being separated from each other.

As shown in Figure 15 (a), the latent heat storage material 10 (L) being in the state of liquid phase is filled in each cylindrical space almost very close to each otherly.On the other hand, the latent heat storage material 10 (S) becoming solid phase mutually from liquid phase shrinks with the volume change specified relative to latent heat storage material 10 (L).As shown in Figure 15 (b), latent heat storage material 10 (L) keeps the state being attached to the relatively high first component of tack 30, and the second component 40 relatively low from tack is peeled off.Thus, between latent heat storage material 10 (S) and second component 40, the cross section of working as thermal insulation layer is that the decompression layer 50 of crescent shape is formed at each cylindrical space respectively.

According to the present embodiment, the effect same with the first embodiment etc. can be reached, and the intensity that thermal storage member 311 resists the load that above-below direction applies from figure can be improved.In addition, according to the present embodiment, thermal storage member 311 can be made bending as shown in Figure 15 (c).Therefore, it is possible to make thermal storage member 311 be deformed into such as along the shape in the bight in cold storage box etc.

[the 12 embodiment]

Then, Figure 16 and Figure 17 is used the thermal storage member of the 12 embodiment of the present invention to be described and to have its cold storage box.Figure 16 (a), (b) represent the cross section structure of the summary of the thermal storage member 312 of present embodiment.In addition, to marking identical Reference numeral with the inscape that the thermal storage member 1 of the first embodiment has an identical function and efficacy and the description thereof will be omitted.

As shown in Figure 16 (a), (b), the thermal storage member 312 of present embodiment has the structure same with the thermal storage member 1 of the first embodiment.The feature of thermal storage member 312 is: first component 30 works as the portion that lets cool 35 for releasing cold from latent heat storage material 10, the bottom surface sections of second component 40 41 (or side surface part 42,44 etc.) work as the cold-storage portion 45 being used for accumulating cold in latent heat storage material 10.Thermal storage member 312 with cold-storage portion 45 and cooling device (such as the cooler of direct-cooling type cold storage box) near to or in contact with, let cool portion 35 and use towards the mode letting cool object (air of the cold insulation indoor of such as this cold storage box) side.That is, thermal storage member 312 lets cool from another face from a face cold-storage.

As shown in Figure 16 (a), the latent heat storage material 10 (L) being in the state of liquid phase is filled in the space of container body 20 inside almost very close to each otherly.Latent heat storage material 10 (L) with let cool portion 35 and cold-storage portion 45 and be close to.Latent heat storage material 10 (L) and cold-storage portion 45 are close to, therefore by the cold quick refrigeration from cooling device.

Cooled and shrink with the volume change specified from the latent heat storage material 10 (S) that liquid phase becomes solid phase mutually relative to latent heat storage material 10 (L).As shown in Figure 16 (b), latent heat storage material 10 (S) keeps the state being attached to the relatively high portion that lets cool of tack 35 (first component 30), and the cold-storage portion 45 (second component 40) relatively low from tack peels off.Between latent heat storage material 10 (S) and cold-storage portion 45, form the decompression layer 50 worked as thermal insulation layer.Thus, latent heat storage material 10 (S) utilizes decompression layer 50 and heat insulation with cold-storage portion 45, reduces therefore, it is possible to make to be sidelong cold caused heat loss from latent heat storage material 10 (S) to cold-storage portion 45.In addition, latent heat storage material 10 (S) with let cool portion 35 and be close to, therefore, it is possible to be sidelong cold from latent heat storage material 10 (S) to letting cool portion 35 efficiently.

In addition, in present embodiment or other embodiment, cold-storage portion 45 internal face is arranged at by detecting the sensor (such as using the sensor of piezoelectric element) whether peeled off from cold-storage portion 45 of latent heat storage material 10, and based on the signal controlled cooling model equipment (compressor of such as cold storage box) of this sensor.

Such as, when latent heat storage material 10 is in liquid phase and is close to cold-storage portion 45 (Figure 16 (a)), cooling device is controlled as open state.Thus, the latent heat storage material 10 (L) of liquid phase is by the cooled equipment cooling better of cold-storage portion 45 efficiency.When latent heat storage material 10 becomes solid phase mutually and peels off from cold-storage portion 45 (Figure 16 (b)), cooling device is controlled for off status, stop the cooling of latent heat storage material 10.Latent heat storage material 10 releases cold through letting cool portion 35, when again becoming liquid phase mutually and be close to cold-storage portion 45, again controls cooling device into open state.Thus, again start to utilize cooling device to cool latent heat storage material 10 (L).By such controlled cooling model equipment, can effectively cool latent heat storage material 10.

Figure 17 (a), (b) represent the structure with the summary of the cold storage box (freezer or freezer) 400 of the direct-cooling type of the thermal storage member 312 of present embodiment.Figure 17 (a), (b) represent the structure of to observe the cold storage box 400 of opening the state of door from front and seeing, but in order to easy understand, the cross section structure of thermal storage member 312 are only shown.As shown in Figure 17 (a), (b), cold storage box 400 has: the main body 410 of the roughly rectangular shape of an opening; Be formed in the cold insulation room 420 of main body 410 inside; The cooler (evaporimeter) 430 of the tabular that the upper level in cold insulation room 420 is arranged.At the lower surface of cooler 430, the mode contacted with cold-storage portion 45 with this lower surface, is provided with thermal storage member 312.The portion that lets cool 35 of thermal storage member 312 is towards cold insulation room 420.

As shown in Figure 17 (a), the latent heat storage material 10 (L) being in the state of liquid phase is close to cold-storage portion 45, is therefore cooled by the heat transfer between cooler 430.On the other hand, become the latent heat storage material 10 (S) of solid phase from liquid phase mutually, as shown in Figure 17 (b), keep the state being close to the relatively high portion that lets cool 35 of tack, the cold-storage portion 45 relatively low from tack peels off.Between latent heat storage material 10 (S) and cold-storage portion 45, form the decompression layer 50 worked as thermal insulation layer.Latent heat storage material 10 (S) utilizes decompression layer 50 and heat insulation with cold-storage portion 45, reduces therefore, it is possible to make to let cool caused heat loss from latent heat storage material 10 (S) to side, cold-storage portion 45 (cooler 430 when such as compressor stops).In addition, latent heat storage material 10 (S) with let cool portion 35 and be close to, therefore, it is possible to let cool efficiently to letting cool side, portion 35 (cold insulation room 420) from latent heat storage material 10 (S).In addition, cooler 430 also can double as cold-storage portion 45.Now, do not need cold-storage portion 45, there is the advantage that number of components reduces.Further, cooler 430 directly contacts with latent heat storage material 10, and therefore latent heat storage material 10 (L) can accept cold efficiently from cooler 430, improves the cooling velocity of latent heat storage material 10 (L).

The present invention is not limited to above-mentioned embodiment, can carry out various distortion.

Such as, in the above-described embodiment, enumerated the example that bottom surface sections 41, side surface part 42,44 etc. are formed by same parts, but the present invention is not limited thereto, also side surface part 42,44 etc. can be formed by the parts different from bottom surface sections 41.Figure 18 represents in the thermal storage member of the first embodiment, an example of structure side surface part 42,44 formed by the parts different from bottom surface sections 41.In the example shown in Figure 18, as side surface part 42,44, for the viewpoint of intensity, use the parts higher than bottom surface sections 41 rigidity.Now, side surface part 42,44, in order to reduce the heat transfer between first component 30 and bottom surface sections 41, preferably uses the parts of excellent in heat insulating performance.In addition, when latent heat storage material 10 carries out volume contraction, when being in latent heat storage material 10 and being attached to the state of side surface part 42,44, heat exchange is promoted through side surface part 42,44.Therefore, as side surface part 42,44, preferably use and the tack of latent heat storage material 10 are the parts with the bottom surface sections 41 lower tack identical with the tack degree of latent heat storage material 10.

In addition, in the thermal storage member (with reference to Fig. 2, Fig. 3, Figure 10) like that with above-mentioned second embodiment or the 9th embodiment with the structure of open system, when usage chain alkane as latent heat storage material 10, alkane as principal component has vapour pressure, can gasify gradually and outwardly flow out, therefore latent heat storage material 10 may deterioration.In order to prevent the deterioration of latent heat storage material 10, also the structure in time can be descended in the gasification suppressing latent heat storage material 10.Figure 19 represents in the thermal storage member of the second embodiment, has descended an example of the structure in time in the gasification suppressing latent heat storage material 10.In the example shown in Figure 19, the face contacted with air due to volume contraction in latent heat storage material 10, the face namely do not contacted with first component 30, the film 110 high by gas barrier covers.Film 110 such as uses PETG of aluminizing to be formed.Now, in order to prevent due to phase transformation repeatedly and the distortion of the latent heat storage material 10 caused, the film shunk along with the volume contraction of latent heat storage material 10 is preferably used.

In addition, enumerated the thermal storage member of accumulation cold in the above-described embodiment, but the present invention is not limited thereto, also can be applied to the thermal storage member of accumulation heat.

In addition, in the above-described embodiment, the thermal storage member having enumerated the internal face setting in the storehouse of freezer is example, but the present invention is not limited thereto, also can as the building materials of the wall surface material of building or earth material etc.

In addition, in the above-described embodiment, enumerate because from liquid phase to the phase transformation of solid phase, the latent heat storage material of volume contraction is example, but the present invention is not limited thereto, also can be applied to due to the latent heat storage material (being such as added with the water of gel) of volumetric expansion from liquid phase to the phase transformation of solid phase.

In addition, in the above-described embodiment, enumerate the example that side surface part 42,44 etc. is lower with the tack of latent heat storage material 10 than first component 30 with the tack of latent heat storage material 10, but the present invention is not limited thereto, side surface part 42,44 etc. and the tack of latent heat storage material 10 also can be equal to the tack of first component 30 and latent heat storage material 10.

In addition, in the above-described embodiment, in order to make first component 30 different with the tack of latent heat storage material 10 with second component 40 from the tack of latent heat storage material 10, enumerate the example that the different formation material of cause forms first component 30 and second component 40, but the present invention is not limited thereto.Also them can be made different from the tack of latent heat storage material 10 by making first component 30 different with the surface treatment of second component 40.Thereby, it is possible to make first component 30 and second component 40 use same material.

Such as, also can form first component 30 and second component 40 by same material, applying fluororesin (teflon (registration mark)) with the contact surface of latent heat storage material 10 and process only at second component 40.Thereby, it is possible to make the lower than first component 30 with the adhesive force of latent heat storage material 10 of second component 40.

In addition, the latent heat storage material 10 of such as paraffinic is oiliness, therefore also can process, and what make second component 40 becomes hydrophilic with the contact surface of latent heat storage material 10.Thereby, it is possible to make the lower than first component 30 with the tack of latent heat storage material 10 of second component 40.On the contrary, when making latent heat storage material 10 of use, also can process, what make first component 30 becomes hydrophilic with the contact surface of latent heat storage material 10.

In addition, if make to become greatly with the surface roughness of the contact surface of latent heat storage material 10, then can make to become large with the contact area of latent heat storage material 10.Therefore, it is possible to raising tack.Such as, can be formed countless concavo-convex at first component 30 with the contact surface of latent heat storage material 10, being formed second component 40 smoothly with the contact surface of latent heat storage material 10.Now, the arithmetic average roughness Ra of first component 30 is larger than the arithmetic average roughness Ra of second component 40.Thereby, it is possible to make the higher than second component 40 with the tack of latent heat storage material 10 of first component 30.

In addition, each overlay film (tunicle) that can have mother metal and be formed on the surface of latent heat storage material 10 side of mother metal of first component 30 and second component 40.Now, even if formed by same material by the respective mother metal of first component 30 and second component 40, by making the mutually different from the tack of latent heat storage material 10 of overlay film surface, also the effect same with above-mentioned embodiment can be obtained.Such as, when latent heat storage material 10 is paraffinic, the overlay film formed is arranged on first component 30 surface by the polymer taking polyethylene as main component.

In addition, as first component 30 and second component 40, the parts that with the addition of polymer beyond mother metal or additive (heat conductive filler or difficult burning agent) with the degree that can not significantly change with the tack of latent heat storage material 10 can also be used.Thereby, it is possible to improve the intensity of parts, or improve the thermal conduction characteristic of parts, to improve, suction is cold lets cool characteristic.

In addition, in the above-described embodiment, having enumerated the latent heat storage material 10 carrying out phase transfer between solid-liquid is example, but the present invention is not limited thereto, Gu also can be used in solid-between carry out the latent heat storage material (latent heat storage material of solid) of phase transfer.Such as, can by material from the state of electron spin rule configuration to the phase transfer (Magnetic Phase transfer) of the state of electron spin completely random that produce from as latent heat storage material.As such material, have between ferromagnetism and normal magnetic or between antiferromagnetism and normal magnetic, carry out the GdAl of phase transfer ₂, YMn ₂etc. magnetic laves phase (Lavesphases) compound.In addition, also the material producing the phase transfer (structure phase transfer) caused by the change of crystal structure can be used as latent heat storage material.As such material, there is the zirconia carrying out phase transfer between monoclinic crystal and regular crystal.

In addition, in the above-described embodiment, enumerate the example in order to make latent heat storage material 10 dimensionally stable be added with gel, but also can add binding agent (bindingagent).

In addition, the respective embodiments described above, each variation also can mutually combine and implement.

Industrial utilizability

The present invention can be widely used in the field of the thermal storage member using latent heat storage material.

The explanation of Reference numeral

1 ~ 9,310 ~ 312 thermal storage member

10,10 (L), 10 (S), 210,210 (L), 210 (S) latent heat storage material

20,20a ~ 20d container body

30,230,270 first components

30a ~ 30d semi-circular cylindrical portion

35 let cool portion

36a ~ 36c linking part

40,240,280 second components

40a ~ 40d semi-circular cylindrical portion

41 bottom surface sections

42,44 side surface part

45 cold-storage portions

46a ~ 46c linking part

50,51,250 decompression layers

52 air layers

62,64 passages

70 seal members

72 heat-barrier materials

74 heat-storing materials

82,84,86,89 airtrapping portions

90 pillars

102,104 porous bodies

110 films

201 ~ 203 heat storage containers

400 cold storage box

410 main bodys

420 cold insulation rooms

430 coolers

Claims (15)

1. a thermal storage member, is characterized in that, has:

The solid changed at the front and back volume of phase transformation with latent heat or gelatinous latent heat storage material;

The first component of described latent heat storage material is attached to the first tack; With

Clip described latent heat storage material and described first component is oppositely disposed, the second component of described latent heat storage material can be attached to the second tack lower than described first tack,

Described latent heat storage material does not have mobility within the scope of serviceability temperature,

Described first component and described second component is attached to during the side of described latent heat storage material in the front and back being in described phase transformation, peel off from described second component during the opposing party in the front and back being in described phase transformation, between described latent heat storage material with described second component, be formed with the decompression layer that pyroconductivity compared with described latent heat storage material is low.

2. thermal storage member as claimed in claim 1, is characterized in that:

Described first component and described second component are formed by the mutually different materials that formed.

3. thermal storage member as claimed in claim 2, is characterized in that:

Described latent heat storage material is containing poly alkane, containing polyethylene in the formation material of described first component.

4. thermal storage member as claimed in claim 1, is characterized in that:

Also have and be arranged between described first component and described second component, maintain the interval maintaining member at the interval of described first component and described second component.

5. thermal storage member as claimed in claim 4, is characterized in that:

Described interval maintaining member is formed as the spherical shape with the diameter equal with described interval.

6. thermal storage member as claimed in claim 5, is characterized in that:

Described interval maintaining member has: the seal member of hollow spheres; With the heat-barrier material be enclosed in described seal member.

7. thermal storage member as claimed in claim 6, is characterized in that:

Described heat-barrier material is air.

8. thermal storage member as claimed in claim 5, is characterized in that:

Described interval maintaining member has: the seal member of hollow spheres; With the heat-storing material be enclosed in described seal member.

9. thermal storage member as claimed in claim 4, is characterized in that:

Described interval maintaining member is formed as the shape of the column with the height equal with described interval.

10. thermal storage member as claimed in claim 1, is characterized in that:

Described decompression layer extends to whole of described second component.

11. thermal storage member according to any one of claim 1 to 10, is characterized in that:

Described latent heat storage material be incorporated at least use described first component and described second component to be formed airtightly container body in,

The gas compartment that all there is not described latent heat storage material in the front and back of described phase transformation is formed in described container body.

12. thermal storage member according to any one of claim 1 to 10, is characterized in that:

Described latent heat storage material be incorporated at least use described first component and described second component to be formed container body in,

The passage that the outflow that described container body has the gas that can realize inside and outside this container body flows into.

13. thermal storage member as claimed in claim 12, is characterized in that:

The porous body that the outflow being provided with the gas suppressed inside and outside described container body at described passage flows into.

14. 1 kinds of heat storage containers, is characterized in that:

Use the thermal storage member according to any one of claim 1 to 10 to be formed, described first component is configured in internal face side, and described second component is configured in from the farther position of the accommodation space surrounded by described internal face compared with described first component.

15. 1 kinds of cold storage box, is characterized in that:

There is the thermal storage member according to any one of claim 1 to 10 and cooler,

Contacting with described cooler at least partially of described second component.