CN104600396A - Built-in battery thermostat - Google Patents
Built-in battery thermostat Download PDFInfo
- Publication number
- CN104600396A CN104600396A CN201410783383.4A CN201410783383A CN104600396A CN 104600396 A CN104600396 A CN 104600396A CN 201410783383 A CN201410783383 A CN 201410783383A CN 104600396 A CN104600396 A CN 104600396A
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- China
- Prior art keywords
- battery
- temperature
- storage battery
- built
- ptc ceramic
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- 239000000919 ceramic Substances 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims description 49
- 239000002253 acid Substances 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004321 preservation Methods 0.000 abstract 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000003411 electrode reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000005036 potential barrier Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001422 barium ion Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 titanate ion Chemical class 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a built-in battery thermostat. According to the main technical scheme, a PTC ceramic heating module is additionally arranged inside a traditional battery so as to utilize the temperature-resistance characteristic of PTC ceramic, after the temperature exceeds the set value, temperature cannot continuously rise even if the PTC ceramic is continuously charged. Therefore, the PTC ceramic heating module is additionally arranged inside the traditional battery, the PTC ceramic 4 can be kept at constant temperature under the conduction situation, and the constant temperature can be set to 25 under which the best effect of the battery can be played, heat generated can be transferred into the battery through a heat-conducting plate, and the battery can be kept at the constant temperature, namely the best effect temperature, by combining a heat-preservation plate around the battery. Therefore, the problem that when an electric vehicle is at low temperature in winter, the charging efficiency and the continuous voyage of the electric vehicle can be greatly reduced, especially the problem that the electric vehicle in the northern region is not widely used can be solved.
Description
Technical field
The present invention relates to accumulator cell heat preserving technical field, be specifically related to a kind of built-in battery thermostat.
Background technology
At present, the mainly lead acid accumulator that uses of electric motor car on the market and lithium ion battery.The discharge and recharge of lead acid accumulator is chemical reaction process, and its speed reacted, the degree of depth and temperature correlation, temperature more low reaction is slower, and reaction depth is more shallow, and therefore storage battery just seems that when temperature is low electricity is not enough.Lithium ion battery reduces along with temperature, and the electrochemical reaction rates occurred in battery also can be slack-off, and discharge capacity also can decline to some extent.Temperature is huge on battery of electric vehicle impact, and along with the decline of temperature, the capacity of electromobile battery diminishes.This follows the characteristic of lead-acid battery of electric vehicle relevant in fact, and the energy that lead acid accumulator stores and temperature are directly proportional, mercury dropped, and the electricity of battery stores also just declines, and temperature is more than 25 DEG C, and battery can normally use; During lower than 25 DEG C, distance travelled can shorten relatively.
Temperature is one of topmost parameter controlled in electric powered motor power-supply system, is also the topmost parameter affecting battery performance.Temperature is comparatively remarkable on the impact of overpotential, and temperature is higher, and overpotential is less, and electrode reaction is more easily carried out.This is because the reacted electromotive force of electrode discharge is determined by two factors: the charge transfer resistance 1. on alloy and electrolyte contacts face; 2. the diffusional resistance of hydrogen atom from alloy bulk to surface.Temperature raises and hydrogen atom is spread and the quickening of Charger transfer speed, and promote the carrying out of electrode reaction, reacted electromotive force reduces, and thus the discharge capacity of battery raises, and equally, in the case of a high temperature, the discharge power ability of battery also can rise to some extent.And under low temperature (-10 DEG C) condition, the discharge performance of battery is worse than discharge performance during room temperature, mainly too stable under metal hydride low temperature, electrode reaction resistance strengthens and causes.Meanwhile, under low temperature condition, the ohmic internal resistance of battery also increases, and affects the output of battery discharge power.The impact of temperature on discharge performance is reacted directly on discharge capacity and discharge voltage.Temperature reduces, and the internal resistance of cell strengthens, and electrochemical reaction rates slows down, and polarization resistance increases sharply, and discharge capacity of the cell and discharge platform decline, and affect the output of the power of battery and energy.For lithium ion battery, same cryogenic conditions discharge capacity sharply declines, but discharge capacity is low unlike normal temperature in the case of a high temperature, sometimes also can a little more than normal temperature capacity, mainly under high-temperature condition lithium ion mobility speed accelerate, lithium electrode unlike nickel electrode and and hydrogen storage electrode in the case of a high temperature produce decompose or formed hydrogen capacity is declined.During battery module low temperature discharge, along with the carrying out of electric discharge, because the reasons such as resistance produce heat, battery temperature is raised, and showing as voltage has lifting phenomenon, and along with the carrying out of electric discharge, voltage declines gradually again.
The Chinese invention patent (CN101159341A) be authorized as the applicant's earlier application discloses a kind of accumulator cell heat preserving capacity increasing device, it is the outside in storage battery (1), the accumulator cell heat preserving sheath of temperature controllable at setting range is set, the formation of accumulator cell heat preserving sheath is, on the top layer of storage battery (1), the electric heating layer (2) that set temperature can control automatically, in the outside of electric heating layer (2), heat-insulation layer (3) is set; The inwall of heat-insulation layer (3) is Turbogrid plates, between each grid (4), air-flow connects, at the dual-side of accumulator cell heat preserving sheath, arrange respectively and can in grid (4), form the shutter (5) of gas channel and go out air door (6); Storage battery also can have good course continuation mileage in the season of cold.But original technology is the form by arranging interior external thermal insulation, there is use and manufacture inconvenient and high in cost of production defect in former technology, has a certain impact to practical application tool.
Ceramic material is typically used as high-resistance good insulator, and ceramic PTC thermistor take barium titanate as base, other polycrystalline ceramic manufacture of adulterating, has lower resistance and semiconduting properties.Reached as the some array element of crystal by the higher material of a kind of chemical valence of autotelic doping; In lattice a part for barium ions or titanate ion substitute by the ion of higher price, thus obtain some and produce the free electron of conductivity.For PTC thermistor effect, the namely reason that increases of resistance value step, be that material structure is made up of many little crystallites, on the interface of crystal grain, namely so-called grain boundary (crystal boundary) forms potential barrier, hinder electronics to cross in adjacent area, therefore produce high resistance, this effect is cancelled when temperature is low; Dielectric constant high on crystal boundary and spontaneous polarization intensity hinder the formation of potential barrier and electronics can freely be flowed when low temperature.And this effect is when high temperature, dielectric constant and polarization intensity reduce significantly, cause potential barrier and resistance to increase significantly, present strong PTC effect.Resistance-temperature characteristics is called for short resistivity-temperature characteristics usually, refers under the voltage of regulation, the dependence between PTC thermistor zero power resistance and resistive element temperature.Namely when temperature exceedes certain value, can there is great variety in resistance, always stops the continuation of temperature to raise, ensure that the constant of temperature.
How ceramic PTC thermistor is used for the insulation of storage battery, is technical problems to be solved in this application, Given this proposes the application.
Summary of the invention
It is simple that technical problem to be solved by this invention is to provide a kind of structure, and stable performance, can make battery be in the built-in battery thermostat of the optimum effect temperature of constant temperature.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of built-in battery thermostat, it is characterized in that: comprise a storage battery, incubator is arranged with outside described storage battery, a PTC ceramic heat module is provided with in described storage battery, described PTC ceramic heat model calling has heat-conducting plate, described PTC ceramic heat module is connected with storage battery, by storage battery power supply, described PTC ceramic heat module can according to Automatic-heating during design temperature low temperature when being energized, the heat produced is transmitted to the inside of storage battery by heat-conducting plate, again in conjunction with the incubator of battery outer, storage battery battery can be made at low temperature season automatic constant internal temperature, capacity is avoided to decline.
The present invention increases a PTC ceramic heat module at traditional inside battery, PTC ceramic heat module can keep stationary temperature when being energized, the heat produced is transmitted to the inside of battery by heat-conducting plate, again in conjunction with the warming plate of battery ambient, battery can be made to be in the optimum effect temperature of constant temperature.PTC ceramic module is built in battery, just starts the heating function of pottery when battery temperature reduces, and pottery is powered by battery self, does not need extra power-supply system.
Described PTC ceramic heat module mainly comprises a ceramic PTC thermistor, described ceramic PTC thermistor can require the preparation of adjustment material mixture ratio according to temperature setting, and two of described ceramic PTC thermistor connect electric face and connect anode conducting plate in accumulator body and cathode guide electroplax respectively;
Described PTC ceramic heat module is built in storage battery, and when battery temp reduces, the internal resistance of PTC ceramic heat module is very little realizes conducting, and automatically start heating function, temperature is elevated to design temperature, and the internal resistance of PTC pottery infinitely increases and reaches power-off.Utilize low temperature low resistance conduction and the high temperature resistance sharp increase characteristic of PTC pottery, namely under the voltage of regulation, the dependence between PTC thermistor zero power resistance and resistive element temperature.When temperature exceedes certain value, can there is great variety in resistance, always stops the continuation of temperature to raise, ensure that the constant of temperature.
Described heat-conducting plate directly stretches in the case of storage battery, contacts with acid solution, and conductive plate surface scribbles anti-corrosion insulating layer.
Described storage battery is all kinds of storage batterys of capacity decline at low ambient temperatures.
Described storage battery is lead-acid battery, lithium battery.
This built-in battery thermostat is not limited to traditional lead-acid battery, and due to lithium battery also has efficiency for charge-discharge and charging capacity to reduce phenomenon when temperature is low, this built-in battery thermostat also can utilize on lithium battery.
The invention has the beneficial effects as follows: when can solve electric motor car temperature is low in the winter time, the problem that the electric motor car charge efficiency caused and course continuation mileage all decline to a great extent, especially solves electric motor car northeastward and can not get widely used problem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is structure side view of the present invention;
Fig. 3 is ceramic heat module connection structure figure of the present invention.
Reference numeral: 1-anode; 2-negative electrode; 3-anode conducting plate; 4-ceramic PTC thermistor; 5-cathode guide electroplax; 6-incubator; 7-heat-conducting plate; 8-Pb minus plate; 9-PbO
2positive plate; 10-storage battery; 11-ceramic heat module.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of built-in battery thermostat, comprise a storage battery 10, incubator 6 is arranged with outside storage battery 10, a PTC ceramic heat module 11 is provided with in storage battery 10, PTC ceramic heat module 11 is connected with heat-conducting plate 7, PTC ceramic heat module 11 is connected with storage battery 10, powered by storage battery 10, PTC ceramic heat module 11 can according to Automatic-heating during design temperature low temperature when being energized, the heat produced is transmitted to the inside of storage battery 10 by heat-conducting plate 7, again in conjunction with the incubator 6 of storage battery 10 outside, storage battery 10 battery can be made at low temperature season automatic constant internal temperature, capacity is avoided to decline.
The present invention increases PTC ceramic heat module 11, a PTC ceramic heat module 11 at traditional inside battery can keep stationary temperature when being energized, and battery can be made to be in the optimum effect temperature of constant temperature.PTC ceramic module 11 is built in battery, just starts the heating function of pottery when battery temperature reduces, and pottery is powered by battery self, does not need extra power-supply system.
PTC ceramic heat module 11 mainly comprises a ceramic PTC thermistor 4, ceramic PTC thermistor 4 can require the preparation of adjustment material mixture ratio according to temperature setting, and two of ceramic PTC thermistor 4 connect electric face and connect the intrinsic anode conducting plate 3 of storage battery 10 and cathode guide electroplax 5 respectively;
PTC ceramic heat module 11 is built in storage battery 10, and when storage battery 10 temperature reduces, the internal resistance of PTC ceramic heat module 11 is very little realizes conducting, and automatically start heating function, temperature is elevated to design temperature, and the internal resistance of PTC pottery infinitely increases and reaches power-off.Utilize low temperature low resistance conduction and the high temperature resistance sharp increase characteristic of PTC pottery, namely under the voltage of regulation, the dependence between PTC thermistor zero power resistance and resistive element temperature.When temperature exceedes certain value, can there is great variety in resistance, always stops the continuation of temperature to raise, ensure that the constant of temperature.
Heat-conducting plate 7 directly stretches in the case of storage battery 10, contacts with acid solution, and conductive plate 7 surface scribbles anti-corrosion insulating layer.Storage battery 10 is all kinds of storage batterys of capacity decline at low ambient temperatures, as lead-acid battery, lithium battery.
This built-in battery thermostat is not limited to traditional lead-acid battery, and due to lithium battery also has efficiency for charge-discharge and charging capacity to reduce phenomenon when temperature is low, this built-in battery thermostat also can utilize on lithium battery.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (7)
1. a built-in battery thermostat, it is characterized in that: comprise a storage battery (10), incubator (6) is arranged with outside described storage battery (10), a PTC ceramic heat module (11) is provided with in described storage battery (10), described PTC ceramic heat module (11) is connected with heat-conducting plate (7), described PTC ceramic heat module (11) is connected with storage battery (10), powered by storage battery (10), described PTC ceramic heat module (11) can according to Automatic-heating during design temperature low temperature when being energized, the heat produced is transmitted to the inside of storage battery (10) by heat-conducting plate (7), again in conjunction with the incubator (6) that storage battery (10) is outside, storage battery battery (10) can be made at low temperature season automatic constant internal temperature, capacity is avoided to decline.
2. a kind of built-in battery thermostat according to claim 1, it is characterized in that: described PTC ceramic heat module (11) mainly comprises a ceramic PTC thermistor, described ceramic PTC thermistor can require the preparation of adjustment material mixture ratio according to temperature setting, and its two connect electric face and connect anode conducting plate (3) in storage battery (10) and cathode guide electroplax (5) respectively.
3. a kind of built-in battery thermostat according to claim 2, it is characterized in that: described PTC ceramic heat module (11) is built in storage battery (10), when storage battery (10) temperature reduces, module (11) internal resistance of PTC ceramic heat is very little realizes conducting, automatic startup heating function, temperature is elevated to design temperature, and the internal resistance of PTC pottery infinitely increases and reaches power-off.
4. a kind of built-in battery thermostat according to claim 1, is characterized in that: described heat-conducting plate (7) is located at the inside of storage battery (10).
5. a kind of built-in battery thermostat according to claim 4, it is characterized in that: described heat-conducting plate (7) directly stretches in the case of storage battery (10), contact with acid solution, conductive plate (7) surface scribbles anti-corrosion insulating layer.
6. a kind of built-in battery thermostat according to claim 1, is characterized in that: described storage battery is all kinds of storage batterys of capacity decline at low ambient temperatures.
7. a kind of built-in battery thermostat according to claim 6, is characterized in that: described storage battery is lead-acid battery, lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410783383.4A CN104600396A (en) | 2014-12-16 | 2014-12-16 | Built-in battery thermostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410783383.4A CN104600396A (en) | 2014-12-16 | 2014-12-16 | Built-in battery thermostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104600396A true CN104600396A (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410783383.4A Pending CN104600396A (en) | 2014-12-16 | 2014-12-16 | Built-in battery thermostat |
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| Country | Link |
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| CN (1) | CN104600396A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237884A (en) * | 2016-12-26 | 2018-07-03 | 江苏卡威汽车工业集团有限公司 | A kind of oil electricity hybrid vehicle of strong applicability |
| CN108400372A (en) * | 2017-02-07 | 2018-08-14 | 万向二三股份公司 | A kind of wide warm all-solid lithium-ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9012327U1 (en) * | 1990-08-28 | 1990-11-29 | Behnisch, Jürgen, 8500 Nürnberg | Electronic voltage and temperature controlled battery heating |
| JPH09190841A (en) * | 1996-01-05 | 1997-07-22 | Kojundo Chem Lab Co Ltd | Battery heating device |
| CN201655931U (en) * | 2010-02-12 | 2010-11-24 | 奇鋐科技股份有限公司 | Heating structure and device applied to battery and auxiliary module |
| CN203536534U (en) * | 2013-09-18 | 2014-04-09 | 福建卫东新能源有限公司 | NI-MH (nickel-metal hydride) battery with heat dissipation function |
-
2014
- 2014-12-16 CN CN201410783383.4A patent/CN104600396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9012327U1 (en) * | 1990-08-28 | 1990-11-29 | Behnisch, Jürgen, 8500 Nürnberg | Electronic voltage and temperature controlled battery heating |
| JPH09190841A (en) * | 1996-01-05 | 1997-07-22 | Kojundo Chem Lab Co Ltd | Battery heating device |
| CN201655931U (en) * | 2010-02-12 | 2010-11-24 | 奇鋐科技股份有限公司 | Heating structure and device applied to battery and auxiliary module |
| CN203536534U (en) * | 2013-09-18 | 2014-04-09 | 福建卫东新能源有限公司 | NI-MH (nickel-metal hydride) battery with heat dissipation function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237884A (en) * | 2016-12-26 | 2018-07-03 | 江苏卡威汽车工业集团有限公司 | A kind of oil electricity hybrid vehicle of strong applicability |
| CN108400372A (en) * | 2017-02-07 | 2018-08-14 | 万向二三股份公司 | A kind of wide warm all-solid lithium-ion battery |
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Application publication date: 20150506 |
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