Rapid cooling device for accelerated calorimeter and equipment for testing accelerated calorimeter

Abstract

The utility model provides an acceleration calorimeter fast cooling device and equipment used for acceleration calorimeter test, which comprises a hollow spray ring arranged in a heat insulation acceleration calorimeter and a conduit detachably connected with the spray ring, the spray ring is provided with spray holes used for spraying cooling liquid, and the conduit is provided with a plurality of cooling holes used for cooling the cooling liquid. And the guide pipe is used for guiding the cooling liquid into the spraying ring. The rapid cooling device of the heat insulation acceleration calorimeter solves the problems that an existing cooling device is complex in structure, insufficient in applicability and high in cost. By means of the rapid cooling device for the heat insulation acceleration calorimeter, the cavity in the heat insulation acceleration calorimeter can be efficiently cooled, and the rapid cooling device for the heat insulation acceleration calorimeter is simple in structure, easy to install, good in flexibility and capable of remarkably improving the testing efficiency and safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of adiabatic accelerated calorimeters, specifically relating to a rapid cooling device for an adiabatic accelerated calorimeter. Background Technology

[0002] With the increasing demand for batteries, battery thermal safety has become a growing concern. Accelerated rate calorimetry (ARC), as an effective method for assessing battery thermal safety performance, has become a crucial step in battery safety testing. However, when using an adiabatic accelerated rate calorimeter (ARC), excessively high temperatures can cause the battery to self-heat, leading to irreversible reactions or even thermal runaway. To avoid overheating, it is often necessary to wait for the chamber to cool naturally, which not only reduces testing efficiency but also makes timely cooling of the battery extremely difficult due to the lag in ARC chamber cooling.

[0003] Currently, ARC cavity cooling is typically achieved by adjusting charging parameters and discharging strategies or by equipping a dedicated rapid cooling device. However, adjusting charging and discharging parameters often has limited effectiveness and is difficult to control precisely, while dedicated rapid cooling devices are often complex in structure and difficult to use with different ARC models. How to optimize the structure of the rapid cooling device while ensuring its cooling capacity, and improve its applicability in different ARC models, has become the focus of current research. Utility Model Content

[0004] To address the existing technical problems, this utility model provides a rapid cooling device for an adiabatic accelerated calorimeter, which solves the problems of complex structure, poor applicability, and high cost of existing cooling devices. It provides a rapid cooling device for an adiabatic accelerated calorimeter that can effectively cool the internal cavity of the ARC, while having a simple structure, being easy to install, and having good flexibility, thus effectively improving testing efficiency and safety.

[0005] In the first aspect, this utility model provides a rapid cooling device for an adiabatic accelerated calorimeter, including a hollow spray ring disposed inside the ARC and a conduit detachably connected to the spray ring.

[0006] The spray ring is provided with spray holes for spraying coolant;

[0007] The conduit is used to introduce coolant into the spray ring.

[0008] As a further option, the spray ring is positioned directly above the battery testing module.

[0009] As a further option, the radius of the spray ring is selected from 25-45cm.

[0010] As a further option, the radius of the spray ring is selected from 30-40cm.

[0011] As a further option, the radius of the hollow channel inside the spray ring is selected from 0.2cm-1cm.

[0012] As a further option, the ratio of the radius of the spray ring to the radius of the hollow channel inside the spray ring is selected from 25-225.

[0013] As a further embodiment, 8-32 spray holes are evenly distributed on the spray ring.

[0014] As a further option, the angle between the spray hole and the horizontal plane is selected from 90°-45°.

[0015] As a further option, the angle between the spray hole and the horizontal plane is selected from one or more.

[0016] As some preferred options, spray holes with different angles to the horizontal plane are arranged alternately on the spray ring according to the angle size.

[0017] As a further embodiment, the angle between the spray hole and the horizontal plane is preferably 90° or / and 45°.

[0018] As a further embodiment, the angle between the spray holes and the horizontal plane is selected from 90° and 45°, and the two types of spray holes are arranged alternately on the spray ring.

[0019] As a further embodiment, the spray ring is also provided with a three-way valve, wherein any two valves of the three-way valve are detachably connected to the spray ring, and the remaining valve is detachably connected to one end of the conduit.

[0020] As a further embodiment, the conduit includes a connecting part and a fixing part, the connecting part being detachably inserted into the three-way valve, and the fixing part being inserted into the chamber of the rapid calorimeter.

[0021] As a further embodiment, the bending angle between the connecting part and the fixing part is selected from 80°-100°.

[0022] As a further option, the ratio of the length of the connecting part to the length of the fixing part is selected from 1 to 4.

[0023] As a further option, the bending radius (R-angle) between the connecting part and the fixing part is selected from 1-3cm.

[0024] As a further option, the length of the catheter is selected from 10-50 cm.

[0025] As a further option, the length of the catheter is selected from 30-45cm.

[0026] As a further option, the radius of the hollow channel inside the catheter is selected from 0.3cm-1.5cm.

[0027] As a further option, the radius of the hollow channel inside the catheter is selected from 0.8cm-1.2cm.

[0028] Secondly, this solution also provides a device for accelerating calorimeter testing, including an adiabatic accelerating calorimeter rapid cooling device.

[0029] As a further embodiment, the device for accelerating calorimeter testing also includes a battery testing module, a first chamber, and a cover plate. The first chamber and the cover plate form a closed chamber. The battery testing module is located inside the chamber formed by the first chamber and the cover plate and does not contact the chamber. In the adiabatic accelerated calorimeter rapid cooling device, the spray ring is located above the battery testing module, and the conduit fixing part passes through the first chamber to introduce coolant into the spray ring.

[0030] As a further option, the cover plate and the first compartment can be detachably enclosed to form a closed compartment.

[0031] The first cabin is also provided with a first snap-fit ​​hole, and a protruding snap-fit ​​hole limiting part is provided on the outside of the first snap-fit ​​hole. The conduit fixing part passes through the first snap-fit ​​hole and is fixed by the snap-fit ​​hole limiting part.

[0032] The first chamber is also provided with a second connection hole, which is located directly above the first snap-fit ​​hole. The current line of the battery test module passes through the second connection hole to connect the current of the battery test module. The conduit connection part is in contact with the current line.

[0033] As some preferred embodiments, the conduit connection is located between and in contact with the two current lines.

[0034] As a further embodiment, the first compartment is provided with a first fixing hole, and the cover plate is provided with a second fixing hole. The first fixing hole and the second fixing hole cooperate with each other, and the cover plate and the first compartment are connected by threads through the first fixing hole and the second fixing hole.

[0035] As a further embodiment, the device for accelerating calorimeter testing also includes a support frame placed inside the first chamber, with the battery testing module placed on the support frame.

[0036] As a further option, the ratio of the height of the support frame to that of the first cabin is selected from 0.3-0.5.

[0037] Compared with the prior art, the present invention has at least the following beneficial effects:

[0038] The adiabatic accelerated calorimeter rapid cooling device proposed in this invention effectively achieves efficient and timely cooling within the ARC (Anaerobic Arc Reactor) while possessing a simple structure, thus significantly reducing the cost of traditional ARC cooling equipment. Furthermore, the device is easy to install and can be adapted to different ARC models and testing requirements by replacing the conduits and spray rings, greatly enhancing testing flexibility. This design significantly enhances testing flexibility, enabling the device to adapt to diverse testing environments and requirements. Attached Figure Description

[0039] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0040] In the attached diagram:

[0041] Figure 1 This is a schematic diagram of the rapid cooling device for an adiabatic accelerated calorimeter.

[0042] Figure 2 An exploded view of the ARC for rapid cooling.

[0043] Among them, 1-spray ring; 11-three-way valve; 2-spray hole; 3-conduit; 31-connecting part; 32-fixing part; 4-battery test module; 5-first chamber; 51-first snap-fit ​​hole; 511-snap-fit ​​hole limiting part; 52-second connecting hole; 53-first fixing hole; 54-second fixing hole; 6-cover plate; 7-support frame. Detailed Implementation

[0044] For ease of understanding, the present invention will be described more comprehensively below, and embodiments of the present invention will be given, but this does not limit the scope of the present invention.

[0045] In a first aspect, this utility model provides a rapid cooling device for an adiabatic accelerated calorimeter, comprising a hollow spray ring 1 disposed inside the ARC and a conduit 3 detachably connected to the spray ring 1, such as... Figure 1 As shown, the spray ring 1 is provided with spray holes 2 for spraying coolant, and the conduit 3 is used to introduce coolant into the spray ring 1.

[0046] Compared to traditional cooling devices, the adiabatic accelerated calorimeter rapid cooling device proposed in this solution has a simple structure. First, coolant is introduced into the spray ring 1 through the conduit 3. Then, the coolant is sprayed onto the cavity inside the ARC using the spray holes 2 on the spray ring 1 to achieve rapid cooling of the cavity, avoiding the impact of cavity cooling lag on battery testing and improving testing efficiency and safety. At the same time, compared to the complex structure of traditional cooling devices, the adiabatic accelerated calorimeter rapid cooling device has a simple structure and is easy to install. The detachable connection between the conduit 3 and the spray ring 1 allows technicians to change the spray ring 1 and the conduit 3 according to different testing needs and ARC models during the testing process. This undoubtedly greatly improves the flexibility of testing and reduces the installation and maintenance costs of the cooling device. Through the adiabatic accelerated calorimeter rapid cooling device proposed in this solution, this utility model not only achieves rapid cooling of the ARC cavity, improving cooling efficiency and timeliness, but also reduces installation and maintenance costs through a simple structure and improves testing flexibility, providing an effective cooling device for ARC testing.

[0047] As a further solution, the spray ring 1 is positioned directly above the battery testing module 4. Positioning the spray ring 1 directly above the battery testing module 4 helps ensure that the surrounding chamber of the battery testing module 4 receives timely and sufficient cooling, thereby ensuring the timeliness and effectiveness of cooling and improving testing efficiency.

[0048] As a further option, the radius of the spray ring 1 is selected from 25-45cm.

[0049] As a further option, the radius of the spray ring 1 is selected from 30-40cm.

[0050] As a further option, the radius of the hollow channel inside the spray ring 1 is selected from 0.2cm-1cm.

[0051] As a further embodiment, the ratio of the radius of the spray ring 1 to the radius of the hollow channel inside the spray ring 1 is selected from 25-225.

[0052] As a further embodiment, 8-32 spray holes 2 are evenly distributed on the spray ring 1.

[0053] As a further embodiment, the angle between the spray hole 2 and the horizontal plane is selected from 90° to 45°. By setting the angle between the spray hole 2 and the horizontal plane to be selected from 90° to 45°, the adiabatic accelerated calorimeter rapid cooling device proposed in this invention can ensure that the sprayed coolant can be positioned around the battery testing module 4, thereby improving the cooling efficiency.

[0054] As a further option, the angle between the spray hole 2 and the horizontal plane is selected from one or more.

[0055] As some preferred options, spray holes 2 with different included angles to the horizontal plane are arranged alternately on the spray ring according to the angle size.

[0056] As a further embodiment, the angle between the spray hole 2 and the horizontal plane is preferably 90° or / and 45°.

[0057] As a further embodiment, the angle between the spray holes 2 and the horizontal plane is selected from 90° and 45°, and the two types of spray holes 2 are arranged alternately on the spray ring 1. Selecting two types of spray holes 2 with different angles to the horizontal plane and ensuring their alternating arrangement helps ensure that the spray holes 2 can effectively cover different areas, thereby achieving a more uniform spraying effect and avoiding situations where some areas lack coverage or are over-sprayed. Compared to other angles, the combination of 90° and 45° helps to better disperse the coolant and improve cooling efficiency.

[0058] As a further embodiment, the spray ring 1 is also provided with a three-way valve 11, wherein any two valves of the three-way valve are detachably connected to the spray ring, and the remaining valve is detachably connected to one end of the conduit 3.

[0059] As a further embodiment, the conduit 3 includes a connecting part 31 and a fixing part 32. The connecting part 31 is detachably inserted into the three-way valve, and the fixing part 32 is inserted into the chamber of the rapid calorimeter.

[0060] As a further embodiment, the bending angle between the connecting part 31 and the fixing part 32 is selected from 80°-100°. The conduit 3 is bent into a connecting part 31 and a fixing part 32, and the bending angle between the connecting part 31 and the fixing part 32 is selected from 80°-100°, which helps to use leverage to fix the spray ring 1 inside the ARC.

[0061] As a further option, the length ratio of the connecting part 31 to the fixing part 32 is selected from 1 to 4.

[0062] As a further option, the bending radius (R-angle) between the connecting part 31 and the fixing part 32 is selected from 1-3cm.

[0063] As a further option, the length of the catheter 3 is selected from 10-50 cm.

[0064] As a further option, the length of the catheter 3 is selected from 30-45cm.

[0065] As a further option, the radius of the hollow channel inside the catheter 3 is selected from 0.3cm-1.5cm.

[0066] As a further option, the radius of the hollow channel inside the conduit 3 is selected from 0.8cm to 1.2cm. When the radius of the hollow channel inside the conduit 3 is selected from 0.8cm to 1.2cm, it helps to control the coolant spray speed and pressure, thereby optimizing the cooling effect.

[0067] Secondly, this solution also provides a device for accelerating calorimeter testing, including an adiabatic accelerating calorimeter rapid cooling device.

[0068] As a further option, such as Figure 2 The rapid cooling ARC also includes a battery testing module 4, a first chamber 5, and a cover plate 6. The first chamber 5 and the cover plate 6 form a closed chamber. The battery testing module 4 is located inside the chamber formed by the first chamber 5 and the cover plate 6 and does not contact the chamber. In the adiabatic accelerated calorimeter rapid cooling device, the spray ring 1 is located above the battery testing module 4. The conduit 3 fixing part 3 passes through the first chamber 5 to introduce coolant into the spray ring 1.

[0069] As a further option, the cover plate 6 and the first compartment 5 can be detachably enclosed to form a closed compartment.

[0070] The first chamber 5 is also provided with a first snap-fit ​​hole 51, and a protruding snap-fit ​​hole limiting part 511 is provided on the outside of the first snap-fit ​​hole 51. The fixing part 32 of the conduit 3 passes through the first snap-fit ​​hole 51 and is fixed by the snap-fit ​​hole limiting part 511. Through the protruding snap-fit ​​hole limiting part 511 of the first snap-fit ​​hole 51, without the need for complicated means, this solution utilizes the lever principle to easily achieve the fixing of the rapid cooling device of the adiabatic accelerated calorimeter inside the chamber, greatly simplifying the installation of the rapid cooling device of the adiabatic accelerated calorimeter and improving the testing efficiency.

[0071] The first chamber 5 is also provided with a second connection hole 52, which is located directly above the first snap-fit ​​hole 51. The current line of the battery test module 4 passes through the second connection hole 52 to connect the current of the battery test module 4. The connecting part 31 of the conduit 3 is in contact with the current line. The second connection hole 52, located directly above the first snap-fit ​​hole 51, helps to ensure the contact between the conduit 3 and the current line. On the one hand, it helps to further limit the conduit 3 with the current line, improving the stability of the rapid cooling device of the adiabatic accelerated calorimeter. On the other hand, it also helps to cool the current line with the conduit 3, further improving the cooling efficiency.

[0072] As some preferred embodiments, the connecting portion 31 of the conduit 3 is located between and in contact with the two current lines. By placing the connecting portion 31 between the two current lines, it helps to further limit the movement of the rapid cooling device of the adiabatic accelerated calorimeter, avoiding possible shaking of the rapid cooling device. At the same time, it also helps to increase the heat dissipation area, further optimize the cooling effect, and improve the consistency of cooling.

[0073] As a further embodiment, the first compartment 5 is provided with a first fixing hole 53, and the cover plate 6 is provided with a second fixing hole 54. The first fixing hole 53 and the second fixing hole 54 cooperate with each other, and the cover plate 6 and the first compartment 5 are connected by threads through the first fixing hole 53 and the second fixing hole 54.

[0074] As a further embodiment, the device for accelerating calorimeter testing also includes a support frame 7, which is placed inside the first chamber 5, and the battery testing module 4 is placed on the support frame 7.

[0075] As a further option, the height ratio of the support frame 7 to the first cabin 5 is selected from 0.3-0.5.

[0076] During testing, first insert the connecting part 31 of the conduit 3 into the three-way valve 11, then insert the fixing part of the conduit 3 into the first snap-fit ​​hole 51, and place the support frame 7 inside the first chamber 5; pass the current line of the battery test module 4 through the second connecting hole 52, then place the battery test module 4 on the support frame 7, align the threaded hole on the cover plate 6 with the threaded hole on the first chamber 5, and tighten the cover plate 6 and the first chamber 5 with screws to perform the test.

[0077] After the test, remove the screws on the cover plate 6 and the first compartment 5, pull out the current wire in the second connection hole 52, take out the battery test module 4 and the support frame 7, and then pull out the fixing part of the conduit 3 from the first snap-fit ​​hole 51 to complete one test.

[0078] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions, and variations to the above embodiments within the scope of the present invention. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A device for rapidly cooling an accelerated calorimeter, characterized in that, It includes a hollow spray ring (1) installed inside the adiabatic accelerated calorimeter and a conduit (3) detachably connected to the spray ring (1). The spray ring (1) is provided with spray holes (2) for spraying coolant; The conduit (3) is used to introduce coolant into the spray ring (1).

2. The device for rapid cooling of an accelerated calorimeter according to claim 1, characterized in that, The spray ring (1) is positioned directly above the battery testing module (4); The radius of the spray ring (1) is selected from 25-45cm; The radius of the hollow channel inside the spray ring (1) is selected from 0.2cm-1cm; The ratio of the radius of the spray ring (1) to the radius of the hollow channel inside the spray ring (1) is selected from 25-225; The spray ring (1) has 8 to 32 spray holes (2) evenly distributed on it. The angle between the spray hole (2) and the horizontal plane is selected from 90°-45°; The angle between the spray hole (2) and the horizontal plane is selected from one or more. Spray holes (2) with different angles to the horizontal plane are staggered on the spray ring (1) according to the angle size.

3. The device for rapid cooling of an accelerated calorimeter according to claim 1, characterized in that, The radius of the spray ring (1) is selected from 30-40cm; The angle between the spray hole (2) and the horizontal plane is 90° or / and 45°; The angle between the spray hole (2) and the horizontal plane is selected from 90° and 45°, and the two types of spray holes (2) are arranged alternately on the spray ring (1); The spray ring (1) is also provided with a three-way valve (11), any two valves of the three-way valve are detachably connected to the spray ring, and the remaining valve is detachably connected to the end of one end of the conduit (3).

4. The device for rapid cooling of an accelerated calorimeter according to claim 1, characterized in that, The conduit (3) includes a connecting part (31) and a fixing part (32). The connecting part (31) is detachably inserted into the three-way valve, and the fixing part (32) is inserted into the chamber of the rapid calorimeter. The bending angle between the connecting part (31) and the fixing part (32) is selected from 80°-100°; The ratio of the length of the connecting part (31) to the length of the fixing part (32) is selected from 1 to 4; The bending radius (R) between the connecting part (31) and the fixing part (32) is selected from 1cm-3cm; The length of the catheter (3) is selected from 10-50cm; The radius of the hollow channel inside the catheter (3) is selected from 0.3cm-1.5cm.

5. The device for rapid cooling of an accelerated calorimeter according to claim 4, characterized in that, The length of the catheter (3) is selected from 30-45cm; The radius of the hollow channel inside the catheter (3) is selected from 0.8cm-1.2cm.

6. An apparatus for accelerated calorimeter testing, characterized in that, Includes the rapid cooling device for the accelerated calorimeter as described in any one of claims 1-5.

7. The apparatus for accelerating calorimeter testing according to claim 6, characterized in that, It also includes a battery test module (4), a first chamber (5), and a cover plate (6). The first chamber (5) and the cover plate (6) form a closed chamber. The battery test module (4) is located inside the chamber formed by the first chamber (5) and the cover plate (6) and does not contact the chamber. In the rapid cooling device of the adiabatic accelerated calorimeter, the spray ring (1) is located above the battery test module (4). The fixing part (32) of the conduit (3) passes through the first chamber (5) to introduce coolant into the spray ring (1).

8. The apparatus for accelerated calorimeter testing according to claim 7, characterized in that, The cover plate (6) and the first compartment (5) can be detachably enclosed to form a closed compartment; The first cabin (5) is also provided with a first snap-fit ​​hole (51), and a protruding snap-fit ​​hole limiting part (511) is provided on the outside of the first snap-fit ​​hole (51). The guide tube (3) fixing part (32) passes through the first snap-fit ​​hole (51) and is fixed by the snap-fit ​​hole limiting part (511). The first cabin (5) is also provided with a second connection hole (52). The second connection hole (52) is located directly above the first snap-fit ​​hole (51). The current line of the battery test module (4) passes through the second connection hole (52) to connect the current of the battery test module (4). The connecting part (31) of the conduit (3) is in contact with the current line. The connecting part (31) of the conduit (3) is located between the two current lines and is in contact with the two current lines.

9. The apparatus for accelerated calorimeter testing according to claim 8, characterized in that, The first compartment (5) is provided with a first fixing hole (53), and the cover plate (6) is provided with a second fixing hole (54). The first fixing hole (53) and the second fixing hole (54) cooperate with each other, and the cover plate (6) and the first compartment (5) are connected by threads through the first fixing hole (53) and the second fixing hole (54).

10. The apparatus for accelerating calorimeter testing according to claim 6, characterized in that, It also includes a support frame (7), which is placed inside the first compartment (5), and the battery test module (4) is placed on the support frame (7); The height ratio of the support frame (7) to the height of the first cabin (5) is selected from 0.3-0.5.

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