CN109962153A - A kind of stable thermo-electric device - Google Patents
A kind of stable thermo-electric device Download PDFInfo
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- CN109962153A CN109962153A CN201910224943.5A CN201910224943A CN109962153A CN 109962153 A CN109962153 A CN 109962153A CN 201910224943 A CN201910224943 A CN 201910224943A CN 109962153 A CN109962153 A CN 109962153A
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- gap
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
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Abstract
The present invention relates to a kind of stable thermo-electric devices, including thermoelectric unit and the heat transfer unit being arranged between heat source and thermoelectric unit, the heat transfer unit includes the cavity on top, lower part and the accommodating phase-change material being arranged between top and lower part, multiple barricades are arranged in the heat transfer unit edge, gap is equipped between barricade, and the pressure in gap is greater than the intracorporal pressure of chamber, the pressure in the gap is lower than thermo-electric device external pressure.Thermal shock of the heat to thermo-electric device can be buffered, the setting of barricade and pressure difference avoids phase-change material from leaking outside, and improves the stability of heat transfer unit, and then improves the service life of thermo-electric device.
Description
Technical field
The present invention relates to a kind of stable thermo-electric devices.
Background technique
With the continuous development of world economy, energy and environment are two hang-ups faced at present, are asked to solve the energy
, there is numerous new energy, such as new energy battery, new-energy automobile, solar energy equipment in topic, however, either automobile, still
Other equipment device can generate heat, and most heat cannot be utilized rationally, become waste heat, directly affect environment, cause
Energy loss.Thermo-electric device is a kind of device for converting thermal energy into electric energy, can efficiently use waste heat, avoid energy loss,
Therefore, attract the research temperature of numerous researchers.
Thermo-electric device at present is attached directly to heat source generally by the good material of the thermal conductivity such as metal, heat source is transmitted
Electric energy is converted thermal energy into through thermo-electric device to the hot end of thermo-electric device.It, can be with although directly being conducted heat by metal etc.
Heat transmission is quickly carried out, but when facing different heats, the influence to thermo-electric device is also different, when such as small heat, thermoelectricity
Device can also be born, however when moment big heat transfer to thermo-electric device, since thermo-electric device has certain power limit, wink
Between big heat can cause serious impact to thermo-electric device, influence the service life of device, and when using metal, heat transmission is quick,
It radiates also fast, will also result in heat recovery loss, recovery efficiency is not high.Further, since when device faces different heats, heat transfer part
Part can cause device to connect the problems such as unstable, and then further influence thermo-electric device due to the physical phenomenon expanded with heat and contract with cold
Service life.
Summary of the invention
The object of the present invention is to provide a kind of stable thermo-electric devices, reduce influence of the thermal shock to device, improve device
Stability and the service life.
To achieve the above object, the present invention provides a kind of stable thermo-electric device, including thermoelectric unit and setting in heat source
Heat transfer unit between thermoelectric unit, the heat transfer unit include top, lower part and are arranged between top and lower part
The cavity of phase-change material is accommodated, multiple barricades are arranged in the heat transfer unit edge, and gap, and the pressure in gap are equipped between barricade
The powerful pressure in the intracorporal pressure of chamber, the gap is lower than thermo-electric device external pressure.
Preferably, the heat transfer unit is made from a material that be thermally conductive.
Preferably, the barricade is at least two, gap at least two, from heat transfer unit avris to central location, according to
Secondary is edge, gap one, barricade one, gap two, barricade two and cavity.
Preferably, the pressure in the gap one is greater than the pressure in the gap two.
Preferably, heat transfer unit lower part described in at least partly described dams setting.
Preferably, the heat transfer unit top is at least partly arranged in at least partly described barricade.
Preferably, the barricade is triangle or trapezium structure.
Preferably, heat transfer unit avris be arranged elastic fixing device, such as elastic clip, when the heat faced is sufficiently large,
It can become larger due to gap and the intracorporal pressure of chamber, further jack the top and lower part of heat transfer unit, but due to elastomeric element
The reason of setting can improve pressure, guarantee the closely sealed of top and lower part, select elastic clip for heat transfer unit also resides in, and works as pressure
Power is not enough to when being top and closely sealed lower part, and elastic clip can bounce, and then separate top with lower part, and then by hot transfer route
Open circuit, and then excessive heat is avoided to be transferred to thermo-electric device, thermo-electric device is protected, is avoided damage to.
Preferably, it is sealed between at least partly described barricade and the heat transfer unit top by flexible membrane, and side
The flexible film strength in portion is greater than the flexible film strength close to central part, avoids between internal barricade and heat transfer unit top
When flexible membrane sealing rupture, the flexible membrane between external barricade and heat transfer unit top can also keep sealing, and avoid phase-change material
Leakage.Flexible membrane is selected, can effectively be sealed, the pressure in gap is controlled,
Preferably, the top of the heat transfer unit is fixed with lower part avris by fixed device.
Preferably, the fixed device is elastic clip.
The utility model has the advantages that apparatus of the present invention are simple and compact for structure, and by the intracorporal phase-change material of heat transfer unit chamber, Ke Yiyou
Effect alleviates impact of the thermal shock to thermo-electric device, improves device lifetime.And multiple barricades and gap are set in heat transfer unit edge,
Pressure in gap is sequentially reduced from the outside to the inside, and the pressure in gap is greater than the pressure of cavity central cavity, Ke Yiyou
Effect avoids the leakage of phase-change material, and pressure is lower than thermo-electric device external pressure in gap, can be further reduced compared to material
Leakage, in addition, central cavity pressure be lower than external pressure, effectively the top of heat transfer unit can be sucked with lower part, avoided
Separation, and the setting in gap also can be further improved the suction between the top of heat transfer unit and lower part, avoid separating, and improve
Stability.In addition, being sealed between barricade and the heat transfer unit top by flexible membrane, and the flexible film strength of edge is greater than
Close to the flexible film strength of central part, when the flexible membrane between internal barricade and heat transfer unit top being avoided to seal rupture, outside
Flexible membrane between portion's barricade and heat transfer unit top can also keep sealing, and provide multiple security, phase-change material is avoided to let out
Dew,.And selection flexible membrane, it can effectively seal, control the pressure in gap.Thus device of the invention, can be effectively relieved heat
The thermal shock to thermo-electric device is measured, the setting of barricade, gap pressure difference and flexible membrane avoids phase-change material from leaking outside, and improves
The stability of heat transfer unit, and then improve the service life of thermo-electric device.
Detailed description of the invention
Fig. 1 is the schematic diagram of the stable thermo-electric device of the embodiment of the present invention 1.
Fig. 2 is the schematic diagram of the stable thermo-electric device of the embodiment of the present invention 2.
Fig. 3 is the schematic diagram of the stable thermo-electric device of the embodiment of the present invention 3.
Wherein: 1, cold source；2, thermoelectric unit；3, the top of heat transfer unit；4, the lower part of heat transfer unit；6, phase-change material；
7, heat source；8- interconnecting piece；9, gap；10, barricade；9-1, gap one；9-2, gap two；10-1, barricade one；10-2, barricade two；
11, gap；12, flexible membrane.
Specific embodiment
Embodiment one
As shown in Figure 1, the present invention provides a kind of stable thermo-electric device, including thermoelectric unit 2 and setting in heat source 7 and heat
2 heat transfer unit between electric unit, the heat transfer unit include top 3, lower part 4 and are arranged between top 3 and lower part 4
The cavity of phase-change material 6 is accommodated, multiple barricades 10 are arranged in the heat transfer unit edge, and gap 9, and gap are equipped between barricade 10
Pressure in 9 is greater than the intracorporal pressure of chamber, and the pressure in the gap 9 is lower than thermo-electric device external pressure, such as the pressure in gap 9
By force less than 5 × 103, the intracorporal pressure of chamber is less than 0.5 × 101.Gas-liquid phase transition or solid-liquid phase change material can be used in phase-change material, such as
Water, oil etc..When facing heat, phase-change material variation, the intracorporal pressure of chamber can become larger, but since the pressure in gap 9 is also small
In atmospheric pressure, thus the top 3 of heat transfer unit and lower part 4 can also airtight connection, guarantee that phase-change material is not revealed.The heat transfer is single
Member has Heat Conduction Material to be made.The barricade 10 is triangle or trapezium structure；At least partly described barricade 10 is at least partly arranged
The heat transfer unit lower part 4；It is sealed between the barricade 10 and the heat transfer unit top by flexible membrane 12, it can be effectively close
Envelope controls the pressure in gap.For the stability for further increasing hot leaflet member, can also the top of the heat transfer unit 3 with
4 avris of lower part is fixed by fixed device.The fixed device is fixed as elastic clip, can be by when the heat faced is sufficiently large
Become larger in gap 9 and the intracorporal pressure of chamber, further jacks the top 3 and lower part 4 of heat transfer unit, but due to the setting of elastic clip
It can be that the reason of heat transfer unit improves pressure, and guarantee top 3 is closely sealed with lower part 4, selection elastic clip also resides in, work as pressure
Be not enough to be top 3 and lower part 4 it is closely sealed when, elastic clip can bounce, and then separate top 3 with lower part 4, so by heat transmitting road
Line open circuit, and then excessive heat is avoided to be transferred to thermo-electric device, thermo-electric device is protected, is avoided damage to.And it is passed using dismountable
Hot cell can periodically carry out the replacement or addition of phase-change material, the variation due to phase-change material be avoided, to the shadow of heat transfer efficiency
It rings.
Apparatus of the present invention are simple and compact for structure, and by the intracorporal phase-change material of heat transfer unit chamber, heat can be effectively relieved
The impact to thermo-electric device is impacted, device lifetime is improved.And barricade and gap are set in heat transfer unit edge, the pressure in gap
Greater than the pressure of cavity central cavity, it is possible to prevente effectively from the leakage of phase-change material, and in gap pressure lower than outside thermo-electric device
Portion's pressure can be further reduced the leakage compared to material, in addition, central cavity pressure be lower than external pressure, can effectively by
The top of heat transfer unit is sucked with lower part, avoids separating, and the setting in gap also can be further improved the top of heat transfer unit
Suction between lower part avoids separating, and improves stability.In addition, passing through flexibility between barricade and the heat transfer unit top
Film 12 seals, and phase-change material is avoided to reveal.And selection flexible membrane 12, it can effectively seal, control the pressure in gap.Thus originally
The device of invention, can be effectively relieved thermal shock of the heat to thermo-electric device, the setting of barricade, gap pressure difference and flexible membrane,
It avoids phase-change material from leaking outside, and improves the stability of heat transfer unit, and then improve the service life of thermo-electric device.
Embodiment two
As shown in Fig. 2, the difference of the thermo-electric device of embodiment two and embodiment one are as follows: the dams setting in embodiment two is
Two, i.e., from outside to inside successively are as follows: edge, one 9-1 of gap, one 10-1 of barricade, two 9-2 of gap, two 10-2 of barricade and cavity.
The pressure of one 9-1 of gap is greater than the pressure of two 9-2 of gap, and the pressure of one 9-1 of gap is less than external pressure, such as gap
Pressure in 9-1 is less than 5 × 103, the pressure of two 9-2 of gap is less than 5 × 102, the intracorporal pressure of chamber is less than 0.5 × 101.It is described
Heat transfer unit lower part described in dams setting.It is sealed between barricade and the heat transfer unit top by flexible membrane 12, and edge
The intensity of flexible membrane 12 is greater than the flexible film strength close to central part, the flexibility between internal barricade and heat transfer unit top
When film sealing rupture, the flexible membrane between external barricade and heat transfer unit top can also keep sealing, and phase-change material is avoided to reveal.
Flexible membrane is selected, can effectively be sealed, the pressure in gap is controlled.And multiple barricades and gap are set in heat transfer unit edge,
Pressure in gap is sequentially reduced from the outside to the inside, and the pressure in gap is greater than the pressure of cavity central cavity, Ke Yiyou
Effect avoids the leakage of phase-change material, and pressure is lower than thermo-electric device external pressure in gap, can be further reduced phase-change material
Leakage.In addition, central cavity pressure is lower than external pressure, effectively the top of heat transfer unit can be sucked with lower part, avoided
Separation, and the setting in gap also can be further improved the suction between the top of heat transfer unit and lower part, avoid separating, and improve
Stability.
Embodiment three
As shown in figure 3, the difference of the thermo-electric device of embodiment three and embodiment two are as follows: second gear wall 10-2 setting is being conducted heat
Unit top, the first barricade 10-1 setting is in heat transfer unit lower part, and barricade is triangular structure.Due to above-mentioned setting, second
Gap in the 9-2 of gap is big compared with first gap, even if phase-change material leads to the second barricade and heat transfer unit lower part because of change of heat absorption
Between flexible membrane 12 rupture, cause to leak in Second gap 9-2, can only also be penetrated into from the bottom Second gap 9-2, due to the
Pressure in two gap 9-2 is greater than the pressure in central cavity, can be that phase-change material infiltration capacity is less, and works as and complete heat absorption
Afterwards, after phase-change material reverts to original state, the phase-change material in Second gap 9-2 is penetrated into, it can be due to the pressure on gap top
By force, so that phase-change material is seeped back central space again, phase-change material is avoided to leak to outside.Further, since the big sky of Second gap 9-2
The setting of gap can significantly accommodate exudation phase-change material, avoid the flexible membrane that phase-change material further breaks through the first barricade,
It penetrates into first gap 9-1, phase-change material is caused to reveal.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, anything that does not depart from the technical scheme of the invention according to the technical essence of the invention do above embodiments
Any simple modifications, equivalents, and modifications, all of which are still within the scope of protection of the technical scheme of the invention.
Claims (10)
1. a kind of stable thermo-electric device, it is characterised in that: including thermoelectric unit and be arranged between heat source and thermoelectric unit
Heat transfer unit, the heat transfer unit include the chamber on top, lower part and the accommodating phase-change material being arranged between top and lower part
Body, the heat transfer unit edge are arranged multiple barricades, gap are equipped between barricade, and the pressure in gap is greater than the intracorporal pressure of chamber
By force, the pressure in the gap is lower than thermo-electric device external pressure.
2. a kind of stable thermo-electric device according to claim 1, it is characterised in that: the heat transfer unit is by Heat Conduction Material
It is made.
3. a kind of stable thermo-electric device according to claim 1, it is characterised in that: the barricade is at least two, empty
Gap is at least two, from heat transfer unit avris to central location, is followed successively by edge, gap one, barricade one, gap two, barricade two
And cavity.
4. a kind of stable thermo-electric device according to claim 3, it is characterised in that: the pressure in the gap one is greater than institute
State the pressure in gap two.
5. a kind of stable thermo-electric device according to claim 1, it is characterised in that: at least partly described dams setting institute
State heat transfer unit lower part.
6. a kind of stable thermo-electric device according to claim 1, it is characterised in that: at least partly described barricade at least portion
Set up separately and sets the heat transfer unit top.
7. a kind of stable thermo-electric device according to claim 1, it is characterised in that: the barricade is triangle or trapezoidal
Structure.
8. a kind of stable thermo-electric device according to claim 5, it is characterised in that: at least partly described barricade with
It is sealed between the heat transfer unit top by flexible membrane.
9. a kind of stable thermo-electric device according to claim 1, it is characterised in that: the top of the heat transfer unit is under
Portion's avris is fixed by fixed device.
10. a kind of stable thermo-electric device according to claim 9, it is characterised in that: the fixed device is elastic clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224943.5A CN109962153B (en) | 2019-03-24 | 2019-03-24 | Stable thermoelectric device |
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|---|---|---|---|
| CN201910224943.5A CN109962153B (en) | 2019-03-24 | 2019-03-24 | Stable thermoelectric device |
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| CN109962153A true CN109962153A (en) | 2019-07-02 |
| CN109962153B CN109962153B (en) | 2023-08-15 |
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| US20100169027A1 (en) * | 2008-12-31 | 2010-07-01 | Xuejiao Hu | Analytical Equipment Enclosure Incorporating Phase Changing Materials |
| CN103928605A (en) * | 2014-04-30 | 2014-07-16 | 中国科学院上海高等研究院 | Manufacturing method of thermoelectric device |
| CN205646054U (en) * | 2016-02-03 | 2016-10-12 | 上海工程技术大学 | Power battery heat radiation structure |
| CN106594691A (en) * | 2017-02-04 | 2017-04-26 | 厦门大学 | Heat dissipation and waste heat recovery system for high-heat-flux device |
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2019
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006179843A (en) * | 2004-05-31 | 2006-07-06 | Denso Corp | Thermoelectric conversion device and manufacturing method thereof |
| JP2006086402A (en) * | 2004-09-17 | 2006-03-30 | Hitachi Metals Ltd | Tubular thermoelectric module and thermoelectric converting device |
| KR20080085622A (en) * | 2007-03-19 | 2008-09-24 | 최병규 | Heat exchanging module using an electronic heat exchanging device and a water purifier using the module |
| JP2008232502A (en) * | 2007-03-19 | 2008-10-02 | Yasumasa Nagao | Heat exchange module using electronic heat exchanging element and water purifier using the same |
| JP2009200249A (en) * | 2008-02-21 | 2009-09-03 | Tekkusu Iijii:Kk | Thermoelectric conversion device |
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| CN103928605A (en) * | 2014-04-30 | 2014-07-16 | 中国科学院上海高等研究院 | Manufacturing method of thermoelectric device |
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| CN106594691A (en) * | 2017-02-04 | 2017-04-26 | 厦门大学 | Heat dissipation and waste heat recovery system for high-heat-flux device |
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