CN103107299B - Protection structure of lithium battery - Google Patents
Protection structure of lithium battery Download PDFInfo
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- CN103107299B CN103107299B CN201310037406.2A CN201310037406A CN103107299B CN 103107299 B CN103107299 B CN 103107299B CN 201310037406 A CN201310037406 A CN 201310037406A CN 103107299 B CN103107299 B CN 103107299B
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- shell
- top connection
- operator guards
- lower contact
- battery carrier
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- 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
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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a protection structure of a lithium battery. The protection structure comprises an upper connector, a lower connector, a battery support and a shell, wherein the shell is cylindrical, and the battery support is arranged in the shell; the upper connector is with an upper end port of the shell and the upper end part of the battery support respectively, the lower connector is connected with a lower end port of the shell and the lower end part of the battery support respectively, and a sealing cavity body is formed between the shell and the battery support; and an inert medium is filled in the sealing cavity body, the outer side, facing the sealing cavity body, of the battery support is provided with at least one groove which can be used for installing the lithium battery. Through the arrangement manner, lithium metal is also surrounded by the inert medium even if the shell of the lithium battery fractures, so that the lithium metal is isolated from an external environment such as air or water, and therefore, the explosive intensity of the lithium battery is effectively reduced or explosion is prevented.
Description
Technical field
The present invention relates to a kind of operator guards, particularly relate to a kind of operator guards of lithium battery.
Background technology
At present, the power supply of downhole instrument adopts High Temperature Lithium Cell in a large number.But the High Temperature Lithium Cell of downhole instrument is often in the extreme environment of HTHP, be subject to the impact of many factors, be easy to blast, electrolyte as lithium battery interior is heated vaporization, when the internal pressure of lithium battery raises, or when being subject to extraneous vibration and impacting, or there is external short circuit and lithium battery interior when being short-circuited, its shell is just easy to break, thus explosion caused.And the explosion energy of down-hole High Temperature Lithium Cell will be far longer than common household batteries, down-hole High Temperature Lithium Cell, once blast, directly will threaten the use safety of instrument, and personal safety.At present, a kind of effective ways are not also had can to reduce or stop down-hole lithium battery blast.
Summary of the invention
This application provides a kind of operator guards of lithium battery, described operator guards comprises top connection, lower contact, battery carrier and shell,
Described shell is cylindrical shape, described battery carrier is arranged on the inside of described shell, described top connection is connected with the upper end of described battery carrier with the upper port of described shell respectively, described lower contact is connected with the bottom of described battery carrier with the lower port of described shell respectively, thus between described shell and described battery carrier, form a closed cavity;
Be filled with inert media in described closed cavity, described battery carrier is having at least one can install the groove of lithium battery towards the arranged outside of described closed cavity.
Preferably, the first annular trough body is provided with between inside the upper port of described shell and outside the upper end of described battery carrier, described top connection is provided with the first annular spigot matched with described first annular trough body, described top connection and described shell carry out first and are threaded, described first position be threaded is provided with the first sealing, the inner side of described first annular spigot is provided with the first ring-shaped step, and the upper end of described battery carrier becomes contact seal with described first annular step;
The second annular trough body is provided with between inside described shell lower port and outside the bottom of described battery carrier, described lower contact is provided with the second annular spigot matched with described second annular trough body, described lower contact and shell carry out second and are threaded, described second position be threaded is provided with the second sealing, the inner side of the second annular spigot is provided with the second ring-shaped step, and upper end and second ring-shaped step of described battery carrier form contact seal.
Preferably, described operator guards also comprises the protective rubber being wrapped in described lithium battery periphery.
Preferably, described top connection and/or lower contact are provided with overflow valve, and described overflow valve is connected with described closed cavity.
Preferably, described top connection and/or lower contact are provided with manual relief valve, and described manual relief valve is connected with described closed cavity.
Preferably, described top connection and/or lower contact are provided with the pressure sensor of the pressure in the described closed cavity of monitoring.
Preferably, described operator guards also comprises the thermocouple sensor on the surface being arranged on described lithium battery.
Preferably, described top connection and lower contact place are provided with the circulation hydraulic fluid port that can discharge air in described closed cavity.
Preferably, pressure equaliser is provided with in described top connection and/or lower contact, described pressure equaliser comprises cylinder body, piston and spring, the inside of described top connection and/or lower contact is fixed in one end of described spring, the other end of described spring is connected with one end of described piston, and the other end of described piston is connected with described closed cavity.
Preferably, described groove is the annular groove can installing cylindrical shape lithium battery.
Preferably, described battery carrier, top connection and the inside of lower contact are provided with the mud runner be connected.
Compared with relevant technologies, the beneficial effect of the embodiment of the present invention is as follows:
(1) operator guards of embodiment of the present invention lithium battery, comprise top connection, lower contact, battery carrier, shell, shell and battery carrier are cylindrical shape, battery carrier is arranged on the inside of shell, top connection is connected respectively with inside the upper port of shell with outside the upper end of battery carrier, lower contact is connected respectively with inside the lower port of shell with outside the bottom of battery carrier, thus forms a closed cavity between shell and battery carrier; Be filled with inert media in closed cavity, battery carrier is having at least one can install the groove of lithium battery towards the arranged outside of closed cavity.By such set-up mode, even if li battery shell breaks, lithium metal also can be surrounded by inert media, thus by lithium metal and the external environment condition such as air or water isolated, therefore effectively reduce lithium battery blast intensity or stop blast occur.
(2) operator guards of embodiment of the present invention lithium battery, is also provided with pressure sensor and thermocouple sensor, by detecting the situation of lithium battery in real time, can judge whether lithium battery outer casing rupture occurs like this.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the operator guards of embodiment of the present invention lithium battery;
Fig. 2 is that Fig. 1 C-C of the operator guards of embodiment of the present invention lithium battery is to generalized section;
Reference numeral: 1-shell, 2-top connection, 3-lower contact, 4-battery carrier, 5-closed cavity, 6-lithium battery, 7-mud runner, 8-overflow valve, the manual relief valve of 9-, 10-pressure sensor, 11-circulation hydraulic fluid port
Embodiment
Hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
The operator guards of the lithium battery of the embodiment of the present invention realizes like this, be described below in conjunction with accompanying drawing, see shown in Fig. 1 and 2, operator guards comprises top connection 2, lower contact 3, battery carrier 4, shell 1, shell 1 is cylindrical shape, battery carrier 4 is arranged on the inside of shell 1, top connection 2 is connected respectively with inside the upper port of shell 1 with outside the upper end of battery carrier 4, lower contact 3 is connected respectively with inside the lower port of shell 1 with outside the bottom of battery carrier 4, thus between shell 1 and battery carrier 4, form a closed cavity 5; Inert media is filled with in closed cavity 5, battery carrier 4 is having at least one can install the groove of lithium battery 6 towards the arranged outside of closed cavity 5, by inert media, lithium battery 6 and the external world are isolated like this, break even if battery is sent out, lithium metal also can by the Fluid inclusions of inertia, thus stop blast to occur.Inert media adopts the inert substance that chemistry does not occur with lithium metal, can select liquid, as kerosene etc.; Also gas can be selected, as argon gas etc.Described battery carrier, top connection are provided with lower contact inside the mud runner 7 be connected; namely be provided with mud runner 7 in the inside of battery carrier 4, top connection 2 inside is provided with mud runner 7; also mud runner 7 is provided with in the inside of lower contact 3; mud runner is interconnected; lithium battery safe power supply can be ensured by operator guards like this, again can by mud runner 7 slurry conveyed of operator guards.
In order to realize top connection 2 better, lower contact 3 is connected with battery carrier 4 with shell 1, the first annular trough body is arranged between inside the upper port of shell 1 and outside the upper end of battery carrier 4, top connection 2 is provided with the first annular spigot matched with the first annular trough body, top connection 2 is carried out first with shell 1 and is threaded, first position be threaded is provided with the first sealing, first sealing can adopt conventional thread sealant to seal, also O-ring seals can be adopted to seal, also other seal form can be adopted, the inner side of the first annular spigot is provided with the first ring-shaped step, the upper end of battery carrier 4 becomes contact seal with the first annular step.In order to increase the sealing between battery carrier 4 and top connection 2, seal can also be provided with, as sealing gasket or sealing ring in the position between the upper end of battery carrier 4 and the first ring-shaped step.
The second annular trough body is arranged between inside shell 1 lower port and outside the bottom of battery carrier 4, lower contact 3 is provided with the second annular spigot matched with the second annular trough body, lower contact 3 is carried out second with shell 1 and is threaded, second position be threaded is provided with the second sealing, second sealing can adopt conventional thread sealant to seal, also sealing O circle can be adopted to seal, also other seal form can be adopted, the inner side of the second annular spigot is provided with the second ring-shaped step, upper end and second ring-shaped step of battery carrier 4 form contact seal.In order to increase the sealing between battery carrier 4 and lower contact 3, between the bottom of battery carrier 4 and the second ring-shaped step, seal can also be provided with in position, as sealing gasket or sealing ring.
In order to protect lithium battery 6, operator guards can also comprise the protective rubber being wrapped in lithium battery 6 periphery, namely at lithium battery 6 periphery parcel protective rubber, lithium battery 6 and external environment condition is isolated so further.
Top connection 2 and/or lower contact 3 are provided with overflow valve 8, and overflow valve 8 is connected with closed cavity 5.Like this when in closed cavity 5 during inert media hypertonia, can, by overflow valve 8 pressure release, avoid pressure excessive, thus cause shell 1 to break, inert media runs off, and the materials such as the water and air of external environment enter closed cavity, the problem that set off an explosion.
Top connection 2 and/or lower contact 3 are provided with manual relief valve 9, and manual relief valve 9 is connected with closed cavity 5.After operator guards takes out in well, the pressure of closed cavity 5 can be very high, and the parts such as shell 1, top connection 2 and lower contact 3 are difficult to open, if utilize manual relief valve 9 to balance the pressure of closed cavity and environment, is then easy to dismounting, changes some parts.
In order to monitor the situation of the pressure change in closed cavity 5, top connection 2 and/or lower contact 3 can be provided with the pressure sensor 10 of the pressure in monitoring closed cavity 5.Break if pressure has raised suddenly just very likely lithium battery 6.
In order to the temperature of each lithium battery 6 of on-line real time monitoring, operator guards can also comprise the thermocouple sensor on the surface being arranged on lithium battery 6, and namely thermocouple sensor is fitted in the surface of lithium battery 6.If the temperature of lithium battery 6 raises suddenly, then lithium battery 6 may be short-circuited, or the shell of lithium battery 6 may produce and breaks.
Top connection 2 and lower contact 3 place are provided with the circulation hydraulic fluid port 11 that can discharge air in closed cavity 5.The whole air in closed cavity 5 can be ensured like this to discharge, avoid air to contact with lithium battery 6.
Operator guards also comprises pressure equaliser; pressure equaliser comprises cylinder body, piston and spring; pressure equaliser arranges the inside of top connection 2 and/or lower contact 3; pressure equaliser comprises cylinder body; piston and spring, one end of spring is fixed in top connection 2 and/or lower contact 3, and the other end of spring is connected with one end of described piston; the other end of piston is connected with closed cavity 5, and such spring can promote piston and move in cylinder body.Like this when operator guards is in down-hole, temperature raises, inert media expanded by heating in closed cavity 5, pressure increase, and after pressure equaliser is set, space (the i.e. pressure increase holding inert media can be increased, piston moves laterally, the space holding inert media increases), and then reduce the amplitude of pressure increase, make the pressure in closed cavity 5 remain in safe scope; And when operator guards is in aboveground; temperature declines; inert media is caught a cold and is reduced; pressure drop; pressure equaliser reduces the space (i.e. pressure drop, spring promotes piston and moves to the inside, and the space holding inert media reduces) holding inert media; and then reduce the amplitude of pressure drop, the pressure in closed cavity 5 is remained in safe scope.
The shape of groove without particular restriction requirement, as long as groove be in the outside of battery carrier 4 and opening towards closed cavity 5.As groove can be set to the annular groove can installing cylindrical lithium battery 6, several lithium battery 6 to be vertically arranged in groove and around battery carrier 4 one circle.As disposable execution mode, groove also can be arranged to shape.
Although the execution mode disclosed by the present invention is as above, the execution mode that described content just adopts for the ease of understanding the present invention, and be not used to limit the present invention.Technical staff in any the technical field of the invention; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (11)
1. an operator guards for lithium battery, described operator guards comprises top connection, lower contact, battery carrier and shell,
Described shell is cylindrical shape, described battery carrier is arranged on the inside of described shell, described top connection is connected with the upper end of described battery carrier with the upper port of described shell respectively, described lower contact is connected with the bottom of described battery carrier with the lower port of described shell respectively, thus between described shell and described battery carrier, form a closed cavity;
Be filled with inert media in described closed cavity, described battery carrier is having at least one can install the groove of lithium battery towards the arranged outside of described closed cavity.
2. operator guards according to claim 1, wherein, the first annular trough body is provided with between inside the upper port of described shell and outside the upper end of described battery carrier, described top connection is provided with the first annular spigot matched with described first annular trough body, described top connection and described shell carry out first and are threaded, described first position be threaded is provided with the first sealing, the inner side of described first annular spigot is provided with the first ring-shaped step, and the upper end of described battery carrier becomes contact seal with described first annular step;
The second annular trough body is provided with between inside described shell lower port and outside the bottom of described battery carrier, described lower contact is provided with the second annular spigot matched with described second annular trough body, described lower contact and shell carry out second and are threaded, described second position be threaded is provided with the second sealing, the inner side of the second annular spigot is provided with the second ring-shaped step, and upper end and second ring-shaped step of described battery carrier form contact seal.
3. operator guards according to claim 1 and 2, wherein, described operator guards also comprises the protective rubber being wrapped in described lithium battery periphery.
4. operator guards according to claim 1 and 2, wherein, described top connection and/or lower contact are provided with overflow valve, and described overflow valve is connected with described closed cavity.
5. operator guards according to claim 1 and 2, wherein, described top connection and/or lower contact are provided with manual relief valve, and described manual relief valve is connected with described closed cavity.
6. operator guards according to claim 1 and 2, wherein, described top connection and/or lower contact are provided with the pressure sensor of the pressure in the described closed cavity of monitoring.
7. operator guards according to claim 1 and 2, wherein, described operator guards also comprises the thermocouple sensor on the surface being arranged on described lithium battery.
8. operator guards according to claim 1 and 2, wherein, described top connection and lower contact place are provided with the circulation hydraulic fluid port that can discharge air in described closed cavity.
9. operator guards according to claim 1 and 2; wherein; the inside of described top connection and/or lower contact is provided with pressure equaliser; described pressure equaliser comprises cylinder body; piston and spring; the inside of described top connection and/or lower contact is fixed in one end of described spring, and the other end of described spring is connected with one end of described piston, and the other end of described piston is connected with described closed cavity.
10. operator guards according to claim 1 and 2, wherein, described groove is the annular groove can installing cylindrical shape lithium battery.
11. operator guards according to claim 1 and 2, wherein, described battery carrier, top connection and the inside of lower contact are provided with the mud runner be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037406.2A CN103107299B (en) | 2013-01-31 | 2013-01-31 | Protection structure of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310037406.2A CN103107299B (en) | 2013-01-31 | 2013-01-31 | Protection structure of lithium battery |
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| Publication Number | Publication Date |
|---|---|
| CN103107299A CN103107299A (en) | 2013-05-15 |
| CN103107299B true CN103107299B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310037406.2A Active CN103107299B (en) | 2013-01-31 | 2013-01-31 | Protection structure of lithium battery |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702894A (en) * | 2016-03-29 | 2016-06-22 | 赵紫州 | Lithium battery pack |
| CN105947235B (en) * | 2016-05-10 | 2017-05-17 | 国防科学技术大学 | Electric energy and mechanical environment management multifunctional structure |
| HUE050489T2 (en) * | 2016-10-12 | 2020-12-28 | Prologium Tech Co Ltd | Lithium metal electrode and its related lithium metal battery |
| CN106981697B (en) * | 2017-05-16 | 2023-08-15 | 华霆（合肥）动力技术有限公司 | Thermal instability early warning device and power supply device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399324A (en) * | 2008-09-25 | 2009-04-01 | 深圳市慧通天下科技股份有限公司 | Pressure adjustable safety valve for lithium ionic cell |
| CN102306712A (en) * | 2011-08-31 | 2012-01-04 | 华为技术有限公司 | Cylinder battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8741458B2 (en) * | 2008-02-25 | 2014-06-03 | Jakks Pacific, Inc. | Battery with over-pressure protection |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399324A (en) * | 2008-09-25 | 2009-04-01 | 深圳市慧通天下科技股份有限公司 | Pressure adjustable safety valve for lithium ionic cell |
| CN102306712A (en) * | 2011-08-31 | 2012-01-04 | 华为技术有限公司 | Cylinder battery |
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| CN103107299A (en) | 2013-05-15 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |