CN214477617U - Battery overcharge break gas production pressure testing device - Google Patents
Battery overcharge break gas production pressure testing device Download PDFInfo
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- CN214477617U CN214477617U CN202023229960.5U CN202023229960U CN214477617U CN 214477617 U CN214477617 U CN 214477617U CN 202023229960 U CN202023229960 U CN 202023229960U CN 214477617 U CN214477617 U CN 214477617U
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- battery
- overcharge
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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
Abstract
The utility model provides a broken mouthful of gas pressure test device that produces of battery overcharge. The device for testing the gas production pressure of the battery overcharge breach comprises a sealed shell, a battery clamp, a pressure sensor and a thermocouple, wherein the battery clamp is arranged inside the sealed shell, and the sealed shell is provided with two battery terminal through holes; the detection end of the pressure sensor extends into the sealed shell, and the signal output end of the pressure sensor penetrates through the sealed shell and is arranged outside the sealed shell; the detection end of the thermocouple is arranged in the sealed shell, and the output cable of the thermocouple penetrates through the sealed shell and is arranged outside the sealed shell. The gas production pressure testing device for the overcharge break of the battery can monitor the pressure change of the battery in the overcharge process in real time, and further effectively evaluate the safety of the battery.
Description
Technical Field
The utility model relates to a battery test equipment technical field especially relates to a broken mouthful of gas pressure test device that produces of battery overcharge.
Background
The safety problem of the lithium ion battery for the vehicle is always concerned, and relevant test standards are established at home and abroad to evaluate the safety of the power lithium ion battery, wherein the safety problem has very strict requirements on overcharge test. For a soft package battery, a rupture and pressure relief can occur firstly in the overcharge process, electrolyte is sprayed out, and then the battery is subjected to thermal runaway due to continuous overcharge. Therefore, if the battery can give an alarm in time when the battery is broken and the pressure is released in the overcharging process, the battery can be prevented from continuously generating thermal runaway. Likewise, for hard-shell batteries, thermal runaway of the battery during overcharge can also be well avoided by pressure warning. However, the prior art does not have a test device for real-time monitoring of the change in the cell pressure during overcharge.
SUMMERY OF THE UTILITY MODEL
The utility model provides a broken mouthful of producing gas pressure test device of battery overcharge can carry out real-time supervision to the pressure variation of battery at the overcharge in-process, and then effectively appraises the security of battery.
The utility model provides a battery overcharge breach gas production pressure test device, which comprises a sealed shell, a battery clamp, a pressure sensor and a thermocouple, wherein the battery clamp is arranged inside the sealed shell, and the sealed shell is provided with two battery terminal perforations; the detection end of the pressure sensor extends into the sealed shell, and the signal output end of the pressure sensor penetrates through the sealed shell and is arranged outside the sealed shell; the detection end of the thermocouple is arranged in the sealed shell, and the output cable of the thermocouple penetrates through the sealed shell and is arranged outside the sealed shell.
According to the utility model provides a device for testing the gas production pressure of a battery at an overcharge break opening, a sealing shell comprises a shell main body and a sealing cover, and the shell main body and the sealing cover are detachably connected through a first connecting piece; the two battery terminal penetrating holes are arranged on the sealing cover; the shell main body is provided with a pressure sensor perforation for the pressure sensor to pass through, and the pressure sensor is connected with the pressure sensor perforation in a sealing way; the shell main body is provided with a cable through hole for the output cable of the thermocouple to pass through, and the output cable is connected with the cable through hole in a sealing mode.
According to the utility model provides a battery overcharge breach gas production pressure test device, battery anchor clamps are including the battery lower plate and the battery punch holder of mutually supporting, the battery lower plate with can dismantle the connection through the second connecting piece between the battery punch holder.
According to the utility model provides a battery overcharge breach gas production pressure test device, be equipped with on the bottom plate inside wall of shell main part with the spacing recess of the shape looks adaptation of battery lower plate, the battery lower plate set up in the spacing recess.
According to the utility model provides a battery overcharge breach gas production pressure test device, still establish including pressing from both sides the battery lower plate with test battery between the battery punch holder, test battery's both ends are connected with battery terminal respectively, two battery terminal corresponds and passes two battery terminal perforates and stretches out to seal shell's outside.
According to the utility model provides a battery overcharge breach gas production pressure test device, be equipped with the thermocouple on the battery punch holder and detect the perforation, the sense terminal of thermocouple passes the thermocouple detect the perforation with the upper surface of test battery contacts, just the sense terminal of thermocouple passes through the sticky tape and fixes on the test battery.
According to the utility model provides a battery overcharge breach gas production pressure test device battery terminal with battery terminal is equipped with insulating washer between perforating.
According to the utility model provides a battery overcharge breach gas production pressure test device, each the upper end of battery terminal is equipped with the connection external screw thread, be equipped with in the outside of seal housing with each two connecting bolts of battery terminal one-to-one, each the upper end of battery terminal passes the battery terminal perforation and is connected with each connecting bolt correspondence; and a sealing rubber ring is sleeved on each battery terminal respectively and arranged between the connecting bolt and the sealing cover.
According to the utility model provides a battery overcharge breach gas production pressure test device, still including set up in the pressure release mouth of shell main part bottom, pressure release mouth department installs the relief valve.
According to the utility model provides a battery overcharge breach gas production pressure test device, still include with two cable joint of battery terminal one-to-one, each the cable joint set up respectively in seal housing's outside, each the cable joint corresponds the suit and is in each on the battery terminal, each be connected with charging cable and voltage monitoring cable on the cable joint respectively.
The utility model provides an above-mentioned one or more technical scheme has one of following technological effect at least:
the utility model provides a battery overcharge breach gas production pressure test device, through set up the battery anchor clamps in seal shell's inside, thereby can pass through battery anchor clamps centre gripping fixed test battery, wherein seal shell is equipped with two battery terminal perforation, thereby two battery terminals that supply the test battery pass seal shell and stretch out to seal shell's outside, are convenient for carry out the overcharge test to the test battery; the detection end of the pressure sensor extends into the sealed shell, and the signal output end of the pressure sensor penetrates through the sealed shell to be arranged outside the sealed shell, so that the pressure sensor can conveniently detect the air pressure in the sealed shell; the detection end of the thermocouple is arranged in the sealed shell, and the output cable of the thermocouple penetrates through the sealed shell to be arranged outside the sealed shell, so that the temperature of the test battery can be conveniently obtained through the thermocouple. Therefore, the device for testing the overcharge rupture gas production pressure of the battery can enable the test battery to be in a sealed space in the overcharge test process, is convenient for carrying out real-time monitoring on the pressure change of the test battery in the overcharge process through the pressure sensor, thereby quickly acquiring the time point and the temperature of rupture pressure relief of the test battery in the overcharge test according to pressure monitoring data, and further carrying out effective safety evaluation on batteries of different types.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a device for testing the overcharge rupture gas production pressure of a battery provided by the present invention;
FIG. 2 is a cross-sectional view of the device for testing the overcharge rupture gas generation pressure of the battery provided by the present invention;
fig. 3 is a schematic structural view of a battery lower clamping plate according to the present invention;
fig. 4 is a schematic structural view of the battery upper clamping plate of the present invention;
fig. 5 is a schematic view illustrating the installation of the test battery on the battery bottom plate according to the present invention;
fig. 6 is a schematic view of the installation of the middle test battery between the battery lower plate and the battery lower plate of the present invention.
Reference numerals:
1: sealing the housing; 11: a housing main body; 12: a sealing cover;
13: a first connecting member; 2: a battery clamp; 21: a battery lower clamping plate;
22: a battery upper clamping plate; 23: a second connecting member; 24: detecting a perforation by a thermocouple;
3: a pressure sensor; 4: a thermocouple; 41: a detection end;
42: an output cable; 5: testing the battery; 51: a battery terminal;
52: a connecting bolt; 6: an insulating washer; 7: a pressure relief valve;
8: a cable joint; 81: a charging cable; 82: a voltage monitoring cable.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The following describes a specific embodiment of the device for testing the gas generation pressure of the battery overcharge breach according to the present invention with reference to fig. 1 to 6.
The utility model discloses battery overcharge breach gas production pressure test device, including seal housing 1, battery anchor clamps 2, pressure sensor 3 and thermocouple 4, wherein battery anchor clamps 2 set up in seal housing 1's inside, and battery anchor clamps 2 are used for the fixed test battery of centre gripping 5, and seal housing 1 is equipped with two battery terminal and perforates, supplies the battery terminal 51 on the test battery 5 to wear out to seal housing 1's outside.
Wherein, the detection end of pressure sensor 3 stretches into the inside of seal housing 1, and the signal output part of pressure sensor 3 passes seal housing 1 and sets up in the outside of seal housing 1. That is, the pressure of the gas inside the hermetic container 1 can be detected by the pressure sensor 3.
Wherein, the detection end 41 of the thermocouple 4 is arranged inside the sealed shell 1, and the output cable 42 of the thermocouple 4 is arranged outside the sealed shell 1 through the sealed shell 1. That is, the sensing end 41 of the thermocouple 4 is used to make contact with the test cell 5, thereby sensing the temperature of the test cell 5 by the thermocouple 4.
When testing, carry out the centre gripping with test battery 5 through battery anchor clamps 2 and fix, then place test battery 5 in the sealed cavity of seal housing 1, the battery terminal 51 that rethread test battery 5 stretches out to the seal housing 1 outside connects the charging circuit and carries out the battery overcharge test. In the battery overcharge test process, the gas pressure inside the sealed shell 1 can be monitored in real time through the pressure sensor 3, and the temperature of the test battery 5 can be monitored in real time through the thermocouple 4. When the test battery 5 is subjected to breach pressure relief in the overcharging process, the change of monitoring data of the pressure sensor 3 can be reflected, so that the time point when the breach pressure relief occurs is determined, the temperature of the test battery 5 at the time point is obtained through the thermocouple 4, and the time point is hermetically related to the packaging process and the safety design of the test battery 5.
From this, through the utility model discloses battery overcharge breach gas production pressure test device can make test battery 5 overcharge test in-process be in the confined space, is convenient for carry out real-time supervision to test battery 5 at the pressure variation of overcharge in-process through pressure sensor 3 to test battery 5 takes place the time point and the temperature of breach pressure release when acquireing the overcharge test fast according to pressure monitoring data, and then can carry out effectual security evaluation to the battery of different grade type.
In some embodiments of the present invention, the sealing housing 1 includes a housing main body 11 and a sealing cover 12, and the housing main body 11 and the sealing cover 12 are detachably connected by a first connecting member 13. Wherein, according to the actual use requirement, the first connecting piece 13 can adopt a bolt, a screw or a pin.
Wherein, two battery terminal through holes are provided on the sealing cover 12, that is, two battery terminals 51 on the test battery 5 respectively penetrate the sealing cover 12 to protrude to the outside of the sealed case 1.
Wherein, the shell main part 11 is provided with a pressure sensor perforation for the pressure sensor 3 to pass through, and the pressure sensor 3 is connected with the pressure sensor perforation in a sealing way, so as to ensure the internal sealing performance of the sealed shell 1.
Wherein, the shell main body 11 is provided with a cable perforation through which an output cable 42 of the thermocouple 4 passes, and the output cable 42 is hermetically connected with the cable perforation, thereby ensuring the internal sealing performance of the sealed shell 1.
The utility model discloses an in some embodiments, battery anchor clamps 2 include mutually supporting battery lower plate 21 and battery punch holder 22, can dismantle the connection through second connecting piece 23 between battery lower plate 21 and the battery punch holder 22 to be convenient for realize fixed to the centre gripping of test battery 5. Wherein, according to the actual use requirement, the second connecting piece 23 can adopt a bolt, a screw or a pin.
In some embodiments of the present invention, a limiting groove adapted to the shape of the battery lower plate 21 is disposed on the inner side wall of the bottom plate of the housing body 11, and the battery lower plate 21 is disposed in the limiting groove, so as to limit the installation position of the battery clamp 2 on the housing body 11.
In some embodiments of the present invention, the battery overcharge breaking gas production pressure testing device further includes a test battery 5 sandwiched between the battery lower plate 21 and the battery upper plate 22, the upper surfaces of the two ends of the test battery 5 are respectively connected with a battery terminal 51, and the two battery terminals 51 are respectively vertically disposed with the test battery 5, so that the two battery terminals 51 can correspondingly penetrate through the two battery terminal holes on the sealing cover 12 and extend out of the sealing shell 1.
In some embodiments of the present invention, the battery upper clamping plate 22 is provided with a thermocouple detection through hole 24, and the detection end 41 of the thermocouple 4 passes through the thermocouple detection through hole 24 to contact with the upper surface of the test battery 5. The detection end 41 of the thermocouple 4 is fixed on the test battery 5 through an adhesive tape, so that the detection end 41 of the thermocouple 4 is fixed on the test battery 5 in a contact manner.
In some embodiments of the present invention, an insulating washer 6 is provided between the battery terminal 51 and the battery terminal piercing hole, thereby reducing contact resistance caused by the contact of the battery terminal 51 with the sealing cap 12.
In some embodiments of the present invention, the upper end of each battery terminal 51 is provided with a connection external thread, two connection bolts 52 corresponding to each battery terminal 51 one-to-one are disposed outside the sealing housing 1, and the upper end of each battery terminal 51 is passed through the battery terminal and is connected with each connection bolt 52 correspondingly after being perforated, so as to fix the installation of the battery terminal 51 on the sealing cover 12.
Wherein, each battery terminal 51 is sleeved with a sealing rubber ring, and the sealing rubber ring is arranged between the connecting bolt 52 and the sealing cover 12, thereby realizing the sealing installation between the battery terminal 51 and the battery terminal perforation and ensuring the internal sealing performance of the sealing shell 1.
In some embodiments of the present invention, the device for testing the overcharge break gas production pressure of the battery further includes a pressure relief opening disposed at the bottom of the housing main body 11, and the pressure relief opening is provided with a pressure relief valve 7. When the internal air pressure of the sealed shell 1 is too high, the sealed shell 1 can be subjected to pressure relief operation through the pressure relief valve 7, so that the safety of the test process is ensured.
In some embodiments of the utility model, this battery overcharge breach gas production pressure test device still includes two cable joint 8 with battery terminal 51 one-to-one, and each cable joint 8 sets up respectively in seal housing 1's outside, and each cable joint 8 corresponds the suit on each battery terminal 51, is connected with charging cable 81 and voltage monitoring cable 82 on each cable joint 8 respectively. That is, the test battery 5 can be overcharged by the charging cable 81, and the voltage of the test battery 5 during the overcharge can be monitored in real time by the voltage monitoring cable 82.
To sum up, the utility model discloses battery overcharge breach gas production pressure test device can carry out real-time supervision to the pressure variation of battery at the overcharge in-process, and then effectively appraises the security of battery.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a gas pressure testing arrangement is produced to battery overcharge breach which characterized in that: the battery clamp is arranged in the sealed shell, and the sealed shell is provided with two battery terminal through holes; the detection end of the pressure sensor extends into the sealed shell, and the signal output end of the pressure sensor penetrates through the sealed shell and is arranged outside the sealed shell; the detection end of the thermocouple is arranged in the sealed shell, and the output cable of the thermocouple penetrates through the sealed shell and is arranged outside the sealed shell.
2. The device for testing the gas generation pressure of the battery in the overcharge breach according to claim 1, wherein: the sealing shell comprises a shell main body and a sealing cover, and the shell main body is detachably connected with the sealing cover through a first connecting piece; the two battery terminal penetrating holes are arranged on the sealing cover; the shell main body is provided with a pressure sensor perforation for the pressure sensor to pass through, and the pressure sensor is connected with the pressure sensor perforation in a sealing way; the shell main body is provided with a cable through hole for the output cable of the thermocouple to pass through, and the output cable is connected with the cable through hole in a sealing mode.
3. The device for testing the gas generation pressure of the battery in the overcharge breach according to claim 2, wherein: the battery anchor clamps include mutually supporting battery lower plate and battery punch holder, the battery lower plate with can dismantle the connection through the second connecting piece between the battery punch holder.
4. The device for testing the gas generation pressure of the battery in the overcharge breach according to claim 3, wherein: the inner side wall of the bottom plate of the shell body is provided with a limiting groove matched with the battery lower clamping plate in shape, and the battery lower clamping plate is arranged in the limiting groove.
5. The device for testing the gas generation pressure of the battery in the overcharge breach according to claim 3, wherein: still including pressing from both sides and establishing the battery lower plate with the test battery between the battery punch holder, the both ends of test battery are connected with battery terminal respectively, two battery terminal corresponds and passes two battery terminal perforates and stretches out to sealed shell's outside.
6. The device for testing the gas generation pressure of the battery in the overcharge breach according to claim 5, wherein: the battery upper clamping plate is provided with a thermocouple detection through hole, the detection end of the thermocouple penetrates through the thermocouple detection through hole to be in contact with the upper surface of the test battery, and the detection end of the thermocouple is fixed on the test battery through an adhesive tape.
7. The device for testing the gas generation pressure of the battery in the overcharge breach according to claim 5, wherein: an insulating washer is arranged between the battery terminal and the battery terminal through hole.
8. The device for testing the gas generation pressure of the battery in the overcharge breach according to claim 5, wherein: the upper end of each battery terminal is provided with a connecting external thread, the outside of the sealed shell is provided with two connecting bolts which are in one-to-one correspondence with the battery terminals, and the upper end of each battery terminal penetrates through the battery terminal through hole to be correspondingly connected with each connecting bolt; and a sealing rubber ring is sleeved on each battery terminal respectively and arranged between the connecting bolt and the sealing cover.
9. The battery overcharge rupture gas generation pressure test device according to any one of claims 2 to 8, wherein: still including set up in the pressure release mouth of shell main part bottom, pressure release mouth department installs the relief valve.
10. The battery overcharge rupture gas generation pressure test device according to any one of claims 5 to 8, wherein: the battery terminal sealing structure is characterized by further comprising two cable connectors in one-to-one correspondence with the battery terminals, wherein each cable connector is arranged outside the sealing shell, each cable connector is sleeved on each battery terminal correspondingly, and each cable connector is connected with a charging cable and a voltage monitoring cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023229960.5U CN214477617U (en) | 2020-12-28 | 2020-12-28 | Battery overcharge break gas production pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023229960.5U CN214477617U (en) | 2020-12-28 | 2020-12-28 | Battery overcharge break gas production pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214477617U true CN214477617U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023229960.5U Active CN214477617U (en) | 2020-12-28 | 2020-12-28 | Battery overcharge break gas production pressure testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214477617U (en) |
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2020
- 2020-12-28 CN CN202023229960.5U patent/CN214477617U/en active Active
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