EP4473292A1 - Pruefkammersystem und verfahren - Google Patents
Pruefkammersystem und verfahrenInfo
- Publication number
- EP4473292A1 EP4473292A1 EP23702778.4A EP23702778A EP4473292A1 EP 4473292 A1 EP4473292 A1 EP 4473292A1 EP 23702778 A EP23702778 A EP 23702778A EP 4473292 A1 EP4473292 A1 EP 4473292A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- test
- test chamber
- pressure relief
- chamber system
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
Definitions
- the invention relates to a test chamber system, comprising a test chamber and a method for depressurizing a test chamber of a test chamber system, the test chamber having a test space for accommodating a test specimen, in particular a battery, the test specimen being subjected to a test, in particular an abuse test, in the test space. is subjected to, as a result of which a, preferably explosive, pressure increase in the test chamber can be triggered.
- An open container or bunker is typically used as the test room, which allows the pressure wave to be easily discharged from the test room. Some of the (highly) toxic gases produced during the test simply get into the environment. In addition, using a container or bunker as a test room does not allow a test specimen to be tested under recurring, in particular climatic, simulation conditions.
- test chamber for conditioning air is known from the prior art, the test chamber having a test space that can be closed off from the environment and is temperature-insulated for receiving test material and a temperature control device for temperature control of the test space.
- a test chamber or such a climatic cabinet which emerges from DE 10 2016 204 378 A1, for example, is regularly used to check the physical and/or chemical properties of test material. The test material is taken into the test room and tempered using the temperature control device.
- a test chamber is not suitable for carrying out an abuse test on a battery, in particular due to a lack of explosion protection of the test chamber and its components and a lack of possibility of being able to abruptly discharge a pressure wave that occurs from the test chamber.
- the present invention is therefore based on the object of proposing a test chamber system and a method for depressurizing a test chamber of a test chamber system, which enables improved performance of a test, in particular an abuse test, of a test specimen, in particular a battery.
- This object is achieved by a test chamber system having the features of claim 1 and a method having the features of claim 24.
- the test chamber system comprises a test chamber, the test chamber having a test space for accommodating a test object, in particular a battery, and a pressure relief device, the test object being subjected to a test, in particular an abuse test, in the test space, as a result of which a, preferably explosive pressure increase in the test chamber can be triggered, the pressure in the test chamber being able to be relieved by means of the pressure relief device with regard to the pressure increase, the test chamber system comprising a conditioning unit for conditioning air, the conditioning unit being connected to the test chamber in such a way that the test chamber can be released by means of the conditioning unit can be air-conditioned.
- the test chamber system comprises a test chamber, the test chamber having a test space for accommodating a test piece and a pressure relief device for relieving the pressure of the test chamber or the test space.
- the test specimen can be taken into the test room.
- the test item can be a battery or battery cell and the test can be an abuse test or misuse test, which indicates a faulty or incorrect application, for example an extremely high or low temperature, mechanical damage or an extraordinary electrical load, such as play a short circuit, an overcharge or a deep discharge, can simulate.
- the battery can be destroyed as a result of a nail penetration brought about by means of a penetration device of the test chamber.
- an explosive increase in pressure can be triggered in the test room.
- the test can also be a high-voltage test, whereby high currents introduced into the test room or test object lead to a training formation of an arc, which can discharge with high thermal energy.
- An associated rapid increase in the temperature of the air in the test space can also lead to an explosive increase in pressure in the test space.
- the test chamber or the test space can be designed to be explosion-proof or explosion-resistant in order to be able to withstand the explosive pressure increase occurring during a test of the test object and a pressure wave associated therewith without being destroyed.
- the test chamber or the test space can be pressure-relieved with regard to the pressure increase or excess pressure or the pressure wave can be discharged from the test space.
- the test chamber system also includes a conditioning unit for conditioning air, the conditioning unit being connected to the test chamber or the test space in such a way that the test chamber or the test space can be air-conditioned or temperature-controlled using the conditioning unit.
- the test chamber system includes a conditioning unit, by means of which the test chamber or the test space can be air-conditioned.
- the conditioning unit is connected to the test chamber or the test space in such a way that conditioned or temperature-controlled air can get from the conditioning unit to the test chamber or into the test space.
- the test room is air-conditioned or tempered by means of the conditioning unit.
- the test room can be closed off from the environment and thermally insulated. Due to the fact that the components required for air conditioning are arranged essentially separately from the test chamber in a conditioning unit, only a few special or simple protective measures are required to protect these components from an explosive pressure increase occurring in the test chamber or in the test room or a consequent to protect associated pressure wave.
- a locking slide or pipe slide or a non-return safety device can be provided, which can prevent the conditioning unit from being destroyed as a result of a pressure wave.
- the pressure wave can be discharged completely or essentially completely by means of the pressure relief device of the test chamber.
- test chamber and the conditioning unit can advantageously be of modular design.
- the test space can be designed in two shells with an inner shell forming an insulated or temperature-insulated test box for receiving the test object and an outer shell forming a housing enclosing the test box.
- the test box to be tempered can be designed in a lightweight construction with the lowest possible mass, so that the test box can be thermally favorably tempered or tempered.
- the test chamber system according to the invention thus makes it possible to carry out a test, in particular an abuse test, of a test specimen, in particular a battery, in a simplified manner.
- the conditioning unit can advantageously be designed as a conditioning module or external module.
- the conditioning unit can then be arranged at a distance from the test chamber.
- the conditioning unit can also be arranged directly on the test chamber, in particular on the side of the test chamber.
- the conditioning unit can also be attached to the test chamber, in particular detachably, so that the entire test chamber system can be compact and, depending on the embodiment, additionally mobile or mobile.
- the test chamber system can advantageously include at least one channel, preferably two channels, via which the conditioning unit can be connected to the test chamber.
- the channel can be a tube or be a hose.
- the test chamber system can include a frame on which the channel can be supported. If two ducts are provided, a first duct can be provided for supply air guidance and a second duct for exhaust air guidance. The two channels can then form a circulating air circuit with the test chamber and the conditioning unit. If only one channel is provided, this can be provided for supply air.
- the conditioning unit can be designed as a further test chamber, in particular a climatic chamber, which can have a further test space that can be closed off from the environment and is temperature-insulated for receiving test material.
- a further test chamber a test chamber for air conditioning or a climatic cabinet, which actually primarily for checking physical and/or chemical properties of test material, which can be accommodated in a test space of the test chamber for air conditioning, serves to air-condition the test chamber of the test chamber system.
- the additional test room can then be connected to the test room.
- test chamber for conditioning air if a user already has such a test chamber for conditioning air, he only has to purchase a test chamber with a pressure relief device and a test chamber and possibly a duct in order to combine both test chambers to form the test chamber system according to the invention and then to test a test specimen can. Furthermore, it can then be provided that the test chamber for conditioning air from a mode in which the test chamber for conditioning air can be used to check physical and / or chemical properties of test material, into a further mode in which the test chamber for Air conditioning can be used to air condition the test chamber of the test chamber system to switch.
- test space of the test chamber for conditioning air or further test chamber can be free of test material.
- the conditioning unit can advantageously have a temperature control device.
- a temperature in a temperature range from ⁇ 70° C. to +180° C., preferably from ⁇ 55° C. to +150° C., can advantageously be formed by means of the temperature control device, in particular within the further test chamber.
- the test chamber can be designed to be temperature-resistant for temperatures in this temperature range.
- the test chamber can be designed to be temperature-resistant up to a temperature of +1,100 °C for short-term peak loads.
- the temperature control device can advantageously have a cooling device with a cooling circuit having a refrigerant, a heat exchanger, a compressor, a condenser and an expansion element.
- the heat exchanger of the cooling circuit can be arranged in such a way that air circulated by a fan or ventilator of the temperature control device can come into contact with the heat exchanger. It is thus possible to cool the circulated air by means of the cooling device via the heat exchanger.
- the heat exchanger can in turn be connected to the cooling circuit or integrated into it, so that the refrigerant circulating in the cooling circuit can flow through the heat exchanger.
- the cooling device can also have the compressor, which can be a compressor, for example, and the condenser for the compressed refrigerant, which is arranged downstream of the compressor in a flow direction of the refrigerant.
- the pressure relief device can be designed to be reversible.
- the pressure relief device can be designed in such a way that it cannot be destroyed during the test or explosion, in particular not by projectiles or flying parts produced during the explosion. It is therefore not necessary to replace the pressure relief device after the test or explosion.
- the pressure relief device can also be designed to be irreversible, for example with a bursting disk. However, after the test or explosion, the pressure relief device or bursting disc must be replaced.
- the pressure relief device can advantageously have a frame.
- the pressure relief flap can then be arranged or attached to the frame.
- the pressure relief flap may be hinged to the frame.
- the pressure relief flaps can each be arranged with the base or base side on the frame in relation to the isosceles triangle.
- the frame can be a tubular frame.
- the pressure relief flap can also be attached to the test chamber.
- the test chamber can have a preferably hydraulically driven penetration device for penetrating or destroying the test specimen.
- At least one, preferably two, hydraulic cylinders of the penetration device which can be provided as a drive, can be arranged below the test space in order to protect it from high temperatures. Heat, fire, explosively expanding gases or the like can then escape freely upwards, in particular via an exhaust air duct.
- a piston rod of the hydraulic cylinder can protrude into the test chamber, extending from the bottom to the top. If the penetration device has two hydraulic cylinders, each of the two hydraulic cylinders can have a piston rod, with the piston rods being able to be connected to one another at the end via a traverse then located in the test chamber.
- a traverse can be provided on a piston rod of the hydraulic cylinder.
- a piston rod of the hydraulic cylinder may be arranged a ring-like power transmission element with a rectangular cross-section, with an upper section from the power transmission element or an upper side of the rectangle can form the traverse.
- a pneumatic or electromechanical drive can also be provided instead of the hydraulic drive.
- the pressure relief device or pressure relief flap cannot be destroyed during or as a result of the test or explosion.
- FIG. 1 shows a perspective view of a test chamber system from one side
- FIG 3 shows a perspective view of a pressure relief device of a test chamber of the test chamber system from one side in an open state of the pressure relief device;
- FIG. 4 shows a perspective partial sectional view of the pressure relief device in a closed state of the pressure relief device
- FIG. 5 shows a perspective sectional view of the pressure relief device in the closed state
- FIG. 6 shows a partial perspective view of the test chamber from above in the open state
- FIG. 7 shows a perspective view of a test chamber in a further embodiment from the front
- FIG. 8 shows a perspective view of the test chamber in the further embodiment from behind
- FIG. 9 shows a perspective view of the test chamber in the further embodiment from above in an open state of a pressure relief device of the test chamber
- FIG. 10 is a perspective view of the test chamber in the further embodiment from the front with an open net door of a test space of the test chamber and, in a retracted state, a penetration device of the test chamber;
- FIG. 11 shows a perspective view of the test chamber in the further embodiment from the front with the door open and in an extended state of the penetration device;
- FIG. 12 shows a perspective partial view of the test chamber in the further embodiment from one side in an area of a hinge of the door;
- FIG. 14 shows a perspective partial sectional view of a test chamber in yet another embodiment in a retracted state of a penetration device of the test chamber;
- FIG. 15 shows a perspective partial sectional view of the test chamber in the still further embodiment in an extended state of the penetration device
- FIG. 16 shows a perspective partial view of a test chamber system in a further embodiment, obliquely from one side;
- FIG. 17 shows a perspective view of the test chamber system in the further embodiment from the side.
- FIGS. 1 to 6 shows a test chamber system 10, which comprises a test chamber 11 and a conditioning unit 12 designed as a further test chamber, which is connected via a first channel 13 and a second channel 14 of the test chamber system 10. are bound.
- the first channel 13 and the second channel 14 are supported on a frame 15 of the test chamber system 10 .
- the conditioning unit 12 is used to air-condition the test chamber 11.
- the test chamber 11 has a test chamber 16 and a pressure relief device 17 .
- the side of the test room 16 has a door 18 with a window 19 , it being possible for a test specimen (not shown here) to be introduced into the test room 16 when the door 18 is open. When the door 18 is in a closed state, the door 18 closes the test space 16 laterally.
- the pressure relief device 17 arranged above the test chamber 16 has a frame 20 and four pressure relief flaps 21, each made of a fiber composite material and each having a cross section in the shape of an isosceles triangle, the pressure relief flaps 21 each being hinged on the base side with regard to the isosceles triangle by means of hinges 22, which have a slot 23, the pressure relief device 17 are attached to the frame 20.
- the pressure relief device 17 also has a support frame 24 which is also attached to the frame 20 and on which the pressure relief flaps 21 rest when the pressure relief device 17 is in a closed state.
- a heater 25 of the pressure relief device 17 prevents the pressure relief flaps 21 from freezing to the support frame 24 when the pressure relief device 17 is in the closed state of the pressure relief device 17 and a damping element 28 designed as an oil pressure damper for damping the impact plate 27 .
- the shape and size of a cross section of the impact plates 27 are essentially the same as the shape and size of the cross section of the pressure relief flaps 21 formed so that the pressure relief flaps 21 strike in the open state of the pressure relief device 17 with an entire cross-sectional area of the pressure relief flaps 21 on an impact surface of the impact plates 27.
- the support frame 24 divides the opening 29 into four areas 3 1 , each area 3 1 being closed by a respective pressure relief flap 21 in the closed state of the pressure relief device 17 .
- the pressure relief device 17 When the pressure relief device 17 is in the open state, the test space 16 or the opening 29 or the areas 3 1 are released from the environment 30 .
- the test chamber 11 also has a mobile substructure 32 which is arranged below the test chamber 16 .
- test chamber 33 which is designed largely in accordance with the test chamber 11.
- the test chamber 11 can also have the characteristics by which the test chamber 33 differs from the test chamber 11.
- the test chamber 33 can also have the characteristics by which the test chamber 11 differs from the test chamber 33 .
- the test chamber 33 can be connected to the conditioning unit 12 , in particular via the first channel 13 and the second channel 14 .
- the test chamber 33 has a pressure relief device 34, on the frame of which four covers 35 of the pressure relief device 34 are arranged on the side, which are not shown in FIG. 9, however, for reasons of clarity.
- the cover 35 serves in particular special for the gas-tight connection of a downstream gas cleaning system.
- the test chamber 33 also has a test space 36 which can be closed at the side with a door 37 of the test space 36 .
- the test chamber 36 is arranged on a base 38 of the test chamber 33 , a force absorbing plate 39 of the test chamber 33 being arranged between the test chamber 36 and the base 38 .
- the test chamber 33 has a hydraulically driven penetration device 40 for penetrating a test object (not shown here) that can be accommodated in the test space 36 .
- the penetration device 40 has two hydraulic cylinders 41 arranged below the test chamber 36, each of the two hydraulic cylinders 41 having a piston rod 42 extending from the bottom upwards and protruding into the test chamber 36, the piston rods 42 being connected at the ends via a Traverse 43 located are connected to each other.
- the penetration device 40 has a nail-like penetration element 44 which is arranged on the traverse 43 and extends from top to bottom, by means of which the test specimen can be penetrated from above.
- the test chamber 36 has two shells with an insulated test box for receiving the test and an outer shell 47 forming a housing enclosing the test box.
- the test box to be tempered is designed in a lightweight construction with the lowest possible mass, as a result of which the test box can be thermally favorably tempered or tempered.
- the test box is connected to the housing via a pin 48, which is shown in FIG.
- FIGS. 14 and 15 shows a test chamber 53 which essentially differs from the test chamber 33 in that a penetration device 54 of the test chamber 53 has only a single hydraulic cylinder 55 .
- a traverse 57 is provided on a piston rod 56 of the hydraulic cylinder 55, with which a test piece 58 can be penetrated from above.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022102400 | 2022-02-02 | ||
| PCT/EP2023/052196 WO2023148127A1 (de) | 2022-02-02 | 2023-01-30 | Pruefkammersystem und verfahren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4473292A1 true EP4473292A1 (de) | 2024-12-11 |
Family
ID=85157008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23702778.4A Pending EP4473292A1 (de) | 2022-02-02 | 2023-01-30 | Pruefkammersystem und verfahren |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250110038A1 (de) |
| EP (1) | EP4473292A1 (de) |
| JP (1) | JP2025508674A (de) |
| KR (1) | KR20240142484A (de) |
| CN (1) | CN118922707A (de) |
| WO (1) | WO2023148127A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102825824B1 (ko) * | 2025-03-07 | 2025-06-25 | 문용해 | 이차전지 검사 챔버 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE204378C (de) | ||||
| DE102016204378B4 (de) | 2016-03-16 | 2025-11-27 | Weiss Umwelttechnik Gmbh | Prüfkammer |
| DE102017009686A1 (de) * | 2017-10-17 | 2019-04-18 | Avl Deutschland Gmbh | Klimakammer zur Prüfung von E-Mobilitäts-Hochvolt-Batterien, Brennstoffzellen oder anderen Energiespeichern oder damit ausgerüsteten oder verbunden Antriebseinheiten mit gefährlichem Energieinhalt |
-
2023
- 2023-01-30 JP JP2024545939A patent/JP2025508674A/ja active Pending
- 2023-01-30 CN CN202380029131.XA patent/CN118922707A/zh active Pending
- 2023-01-30 EP EP23702778.4A patent/EP4473292A1/de active Pending
- 2023-01-30 US US18/834,868 patent/US20250110038A1/en active Pending
- 2023-01-30 KR KR1020247028401A patent/KR20240142484A/ko active Pending
- 2023-01-30 WO PCT/EP2023/052196 patent/WO2023148127A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN118922707A (zh) | 2024-11-08 |
| KR20240142484A (ko) | 2024-09-30 |
| WO2023148127A1 (de) | 2023-08-10 |
| JP2025508674A (ja) | 2025-04-10 |
| US20250110038A1 (en) | 2025-04-03 |
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