A battery oil bath testing device

Abstract

A battery oil bath testing device, belonging to the field of oil bath testing equipment, includes at least one testing unit. The testing unit includes a base plate, a support plate disposed on the base plate, and at least one pair of partitions disposed on both sides of the base plate. The support plate has at least one pair of protrusions on both sides, and the partitions have slides that mate with the protrusions. Each slide includes at least one support surface that supports the support plate completely away from the oil during the oil bath test. The support plate has a through hole and a pull ring on its top surface. When the oil bath test ends, by placing the protrusions on the support surface, the oil on the battery surface can flow back through the through hole under gravity. The device has a simple structure, facilitating subsequent maintenance and replacement in case of damage.

Description

Technical Field

[0001] This utility model relates to the field of testing devices, and in particular to a battery oil bath testing device and its tooling. Background Technology

[0002] Battery oil bath testing is a method for evaluating battery performance under high-temperature conditions. It is primarily used to test the battery's thermal stability and safety, and generally involves three steps:

[0003] 1. Secure the battery to the testing equipment;

[0004] 2. Place the test equipment into the oil bath or adjust the sliding mechanism on the test equipment to completely immerse the battery in the oil bath for oil bath testing;

[0005] 3. After the test, remove the test equipment from the oil bath or adjust the sliding mechanism to remove the battery from the liquid surface.

[0006] Chinese patent CN221650557U discloses a cylindrical battery oil bath performance testing fixture, comprising a pull rod and a support base, a slide groove on the support base, connecting slide rods, and a fixed busbar. The pull rod connects to the left and right ends of the support base, which has a slide groove at each end. A busbar is fixed to the connecting slide rod. The support base is I-shaped, and the pull rod is symmetrically fixed in an inverted U-shape at the opening of the support base. An opening for fixing is provided on one side of the slide groove. The combination of the pull rod and the support base enables the testing connection of the cylindrical battery.

[0007] However, the above technical solutions are only suitable for cylindrical batteries. The testing fixture for pouch batteries is a traditional clamping fixture. The design of traditional clamping fixtures is inconvenient to install in oil bath testing and is not compatible with the size of oil bath equipment. At the same time, the structure is complex, disassembly is troublesome, and subsequent maintenance and repair costs after damage are high. Therefore, how to conveniently perform oil bath testing on pouch batteries, and facilitate subsequent maintenance and replacement of damaged parts after damage, is an urgent problem to be solved. Utility Model Content

[0008] The purpose of this invention is to solve the problems that existing oil bath testing tools are not suitable for soft-pack batteries and have complex structures that are inconvenient to maintain. Therefore, an oil bath testing device is provided.

[0009] A battery oil bath testing device adopts the following technical solution:

[0010] A battery oil bath testing device includes several testing units. Each testing unit includes a base plate, at least one pair of partitions perpendicularly disposed on both sides of the base plate, a support plate slidably disposed between the partitions along the height direction of the partitions, at least one pull ring for limiting the battery on the support plate, and protrusions on both sides of the support plate.

[0011] The partition is provided with a support surface for supporting the protrusion;

[0012] The support plate is provided with through holes for rapid oil filtration.

[0013] By adopting the above technical solution, the baffle limits the support plate, and the support surface supports the protrusion. Thus, after oil filtration, the support plate can separate the battery from the oil and allow the oil on the battery surface to flow back through the through hole on the support plate under the action of gravity. The pull ring, while driving the support plate, also limits the battery.

[0014] Furthermore, the partition is provided with a slide rail, the slide rail including a straight portion arranged along the height direction of the partition, an arc portion provided at the top of the slide rail, a notch provided corresponding to the arc portion and pointing to any side of the partition, and the support surface is provided at the bottom of the notch.

[0015] Preferably, the notch has a downward tendency along the direction of the retaining edge.

[0016] The slide and the protrusion work together to limit the position of the support plate and facilitate the smooth sliding of the support plate between the partitions; at the same time, the recess has a downward tendency, and when the protrusion is located at the support surface, the top surface of the support plate does not exceed the top edge of the partition, which lowers the overall center of gravity, improves the overall stability, and prevents the oil filter from tipping over during the test.

[0017] Furthermore, the partition includes a first baffle and a second baffle, and the side of the first baffle and the second baffle that are close to each other constitutes the slide.

[0018] The baffle is divided into a first baffle and a second baffle. The split design facilitates later maintenance and replacement when damaged, and also facilitates faster immersion of oil in the oil filter during testing.

[0019] Furthermore, a wedge-shaped surface is provided on the side of the first baffle and the second baffle that are far apart from each other, and the width of the inner side surface of the first baffle and the second baffle is smaller than the width of the outer side surface.

[0020] The wedge-shaped surface can effectively reduce the impact of oil on the battery oil bath testing equipment during the oil filling stage of the oil bath test. This avoids the battery oil bath equipment from tipping over due to excessive impact and the battery causing the overall center of gravity to be too high, thus improving the safety of the test and indirectly protecting the battery under test.

[0021] Furthermore, the partition between the test units is composed of a first baffle and a second baffle whose outer surfaces are pressed against each other, and a wedge-shaped surface is symmetrically provided on the side of the partition between the test units that is far apart from each other.

[0022] The thickness of the partition between the test units is twice that of the partitions on both sides, which effectively avoids mutual interference between the protrusions between the test units and ensures smooth pushing and pulling of the support plate by the pull ring; the wedge-shaped surface can effectively reduce the impact of oil on the battery oil bath test equipment during the oil filling stage of the oil bath test.

[0023] Furthermore, when the protrusion is located at the support surface, the pull ring and the top of the partitions on both sides of the pull ring form a semi-open space for installing the battery.

[0024] After the oil filter test is completed, the battery is removed from the liquid surface. At this time, the center of gravity rises, and the baffle and pull ring work together to further enhance the limiting effect on the battery.

[0025] Furthermore, at least two pairs of protrusions are provided along both sides of the support plate, and each protrusion corresponds to a slide rail on a partition.

[0026] This ensures the stability of the support plate as it slides along the height of the partition. At the same time, when the support plate does not slide vertically, resulting in a large height difference between the two ends, the pressure between the protrusion and the slide increases, improving the damping during the pulling process. This provides timely warning and prevents the battery from slipping off the support plate due to tilting.

[0027] Furthermore, the adjacent pairs of the partitions form an installation channel for the pull ring when quickly assembling and disassembling the support plate.

[0028] When the battery oil bath testing equipment needs to be disassembled and maintained, push the pull ring of the installation channel to make the support plate perpendicular to the base plate, so as to realize the quick disassembly of the mounting plate in the test unit.

[0029] Furthermore, the length of the protrusion is less than the thickness of the partition.

[0030] To prevent interference from protrusions when adjacent test units are working independently.

[0031] Furthermore, during the oil bath test, the height of the support surface was higher than the oil surface.

[0032] After the oil bath test, accelerate the rate of oil reflux on the battery surface.

[0033] In summary, this application contains at least one of the following beneficial effects:

[0034] 1. The pull ring in the test unit matches the top of the partition to adapt to the oil bath test of soft-pack batteries;

[0035] 2. The support plate in the test unit can be inserted into the installation channel through the pull ring and is perpendicular to the base plate, thus achieving quick disassembly. The partition includes the first baffle 32 and the second baffle 33, which facilitates quick disassembly and assembly, reduces the later maintenance cost, and has a simple structure that is easy to operate.

[0036] 3. The battery oil bath testing equipment includes several parallel testing units, and there is no interference between any two testing units, which improves the efficiency of oil bath testing. Attached Figure Description

[0037] Figure 1 A schematic diagram of the overall structure of the battery oil bath testing equipment;

[0038] Figure 2 This is a schematic diagram of the overall structure of the test unit;

[0039] Figure 3 This is a schematic diagram of the structure of the first baffle 32;

[0040] Figure 4 This is a schematic diagram of the structure of the second baffle 33;

[0041] Figure 5 This is a structural schematic diagram of the base plate;

[0042] Figure 6 This is a schematic diagram of the support plate.

[0043] Figure label:

[0044] 1. Test unit; 2. Base plate; 3. Divider; 31. Support surface; 32. First baffle; 33. Second baffle; 34. Wedge-shaped surface; 4. Support plate; 41. Pull ring; 42. Protrusion; 43. Through hole; 5. Slide rail; 51. Straight part; 52. Curved part; 53. Notch; 6. Installation space; 7. Installation channel. Detailed Implementation

[0045] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] Example 1

[0047] refer to Figure 1 A battery oil bath testing device includes several test units 1 arranged in parallel.

[0048] It should be noted that, in this embodiment, the number of test units 1 in the battery oil bath test equipment is arbitrary and depends on the actual requirements of the oil bath test process (e.g., the number of batteries tested at one time and the space of the oil bath). This embodiment is described using a battery oil bath test equipment that includes two parallel test units 1.

[0049] refer to Figure 2 , 5 The test unit 1 includes a base plate 2, and at least one pair of partitions 3 perpendicular to the base plate 2 are provided on both sides of the base plate 2, and each partition 3 is provided with a support surface 31.

[0050] A support plate 4 parallel to the base plate 2 is slidably provided between the partitions 3, in conjunction with... Figure 2 , 6 The support plate 4 is provided with at least one pair of protrusions 42 that can be supported by the support surface 31. The thickness of the protrusions 42 is less than the thickness of the partition 3. The support plate 4 is also provided with several through holes 43.

[0051] In order to allow the surface oil of the battery to flow back as quickly as possible after the oil bath, when the battery oil bath testing equipment in this embodiment is placed in the oil bath tank, the support surface 31 should be higher than the height of the oil.

[0052] Refer again Figure 2 , 6 The partition 3 is provided with a slide 5, which cooperates with the protrusion 42 to form a combination. Figure 3 , 4 The slide 5 includes a straight section 51 provided along the height of the partition 3, an arc section 52 provided at the top of the straight section 51, and a recess 53 corresponding to the arc section 52. The recess 53 is provided pointing to any side of the partition 3 and has a downward tendency on the side pointing to the partition 3. The bottom of the recess 53 is the support surface 31.

[0053] Therefore, it can be seen that when the protrusion 42 is located on the support surface 31, the height of the support plate 4 will not exceed the top of the partition 3. When the battery is placed on the support plate 4, there is still a contact area between the battery and the two partitions 3. The top of the partition 3 and the top surface of the support plate 4 form a semi-open space for installing the battery.

[0054] Meanwhile, the support plate 4 is provided with a pull ring 41 for driving the support plate 4 and accommodating the battery under test.

[0055] To further improve the stability of the testing device, in this embodiment, two or more partitions 3 are provided on each side of the partition 3. At the same time, the lack of vertical sliding results in a large height difference between the two ends of the support plate 4, increasing the pressure between the protrusion 42 and the slide 5, improving the damping during the pulling process, providing timely warning, and preventing the battery from sliding off the support plate 4 due to tilting. Correspondingly, in this embodiment, the number of protrusions 42 on the support plate 4 is the same as the number of partitions 3.

[0056] refer to Figure 3 , 4 and combined Figure 2The partition 3 includes a first baffle 32 and a second baffle 33. The first baffle 32 has a straight portion 51 on the side near the second baffle 33. The starting point of the straight portion 51 is the bottom of the first baffle 32, and the top of the straight portion 51 is also provided with an arc portion 52. The second baffle 33 has a notch 53 on the side near the first baffle 32. The notch 53 corresponds to the arc portion 52. In this application, the support surface 31 is provided at the notch 53, and the notch 53 has a downward inclined tendency in the direction away from the first baffle 32.

[0057] Further reference Figure 3 , 4 The first baffle 32 and the second baffle 33 have inner and outer surfaces, and the side of the first baffle 32 and the second baffle 33 that is far apart from each other has a wedge-shaped surface 34.

[0058] Refer again Figure 3 , 4 It should be noted that the inner surfaces of the straight portion 51 and the arc portion 52 that make up the slide 5 are perpendicular to the inner and outer surfaces of the first baffle 32, respectively; the inner surface of the notch 53 is perpendicular to the inner and outer surfaces of the second baffle 33, respectively.

[0059] Refer again Figure 1 The partition 3 between adjacent test units 1 is twice the thickness of the partitions 3 on both sides of the battery oil bath test equipment, and wedge-shaped surfaces 34 are symmetrically provided on both sides of the partition 3 between adjacent test units 1.

[0060] The following description of the battery oil bath test process will make this application clearer and more explicit.

[0061] refer to Figure 1At this point, the protrusion 42 on the support plate 4 is located on the support surface 31 of the slide rail 5. The battery to be tested in the oil bath is inserted into the pull ring 41 and placed vertically on the support plate 4. The tester lifts the pull ring 41. At this point, the protrusion 42 on the support plate 4 is located within the arc of the slide rail 5. The battery oil bath test fixture is then placed into the oil bath test tank, and the protrusion 42 on the support plate 4 is placed on the support surface 31. After completing the above steps, the tester introduces oil into the oil bath tank for oil bath testing. During the oil introduction process, the wedge-shaped surfaces 34 on both sides of the partition 3 can effectively reduce the impact of the oil on the battery oil bath test fixture. After oil filling is completed, the tester connects the two poles of the battery to the testing device, then pulls the pull ring 41 up to the arc section and slowly lowers it to ensure that the protrusion 42 moves along the straight section of the slide 5 until the support plate 4 contacts the base plate 2. During the test, once any battery has completed the test, the individual pull ring 41 can be pulled to lift the support plate 4. At this time, the oil adhering to the battery will return to the oil bath through the through hole 43 on the support plate 4. After the oil is filtered, the tester removes the two poles of the battery that has completed the test from the testing device and then removes the battery from the pull ring 41, which greatly increases the convenience of oil bath testing and improves the efficiency of oil bath testing.

[0062] Example 2

[0063] Now, based on Embodiment 1, a method for separately assembling and disassembling the support plate 4 is provided.

[0064] refer to Figure 1 It can be seen that the partitions 3 on the same side form an installation channel 7. At this time, the tester pinches the pull ring 41 and rotates the pull ring 41 toward the side of the partition 3 that is further away from the test unit 1, with the contact edge of the support plate 4 and any partition 3 being more away from the test unit 1 as the axis. At this time, the protrusion 42 away from the rotating edge disengages from the slide 5. Continue to rotate the pull ring 41 until the support plate 4 and the base plate 2 are perpendicular to each other. Then, the support plate 4 can be removed vertically upwards by pulling the pull ring 41 for maintenance. The installation method is to reverse the above steps.

[0065] The remaining implementation methods are the same as in Example 1.

Claims

1. A battery oil immersion test apparatus, characterized by, It includes several test units (1), each test unit (1) includes a base plate (2), at least one pair of partitions (3) vertically disposed on both sides of the base plate (2), a support plate (4) is slidably disposed between the partitions (3) along the height direction of the partitions (3), at least one pull ring (41) for limiting the battery is provided on the support plate (4), and protrusions (42) are provided on both sides of the support plate (4). The partition (3) is provided with a support surface (31) for supporting the protrusion (42). The support plate (4) is provided with through holes (43) for rapid oil filtration.

2. A battery oil immersion test apparatus as defined in claim 1, wherein The partition (3) is provided with a slide (5), the slide (5) includes a straight part (51) arranged along the height direction of the partition (3), an arc part (52) provided at the top of the slide (5), a notch (53) provided corresponding to the arc part (52) and pointing to any side of the partition (3), and the support surface (31) is provided at the bottom of the notch (53).

3. The battery oil immersion test apparatus as recited in claim 1, wherein The partition (3) includes a first baffle (32) and a second baffle (33), and the side of the first baffle (32) and the second baffle (33) that are close to each other constitutes the slide (5).

4. A battery oil immersion test apparatus as defined in claim 3, wherein The first baffle (32) and the second baffle (33) are provided with a wedge-shaped surface (34) on the side that is far away from each other. The width of the inner side of the first baffle (32) and the second baffle (33) is smaller than the width of the outer side.

5. The battery oil immersion test apparatus as recited in claim 1, wherein The partition (3) between the test units (1) is composed of a first baffle (32) and a second baffle (33) whose outer surfaces are pressed against each other. A wedge-shaped surface (34) is symmetrically provided on the side of the partition (3) between the test units (1) that is far away from each other.

6. A battery oil immersion test apparatus as defined in claim 5, wherein When the protrusion (42) is located at the support surface (31), the pull ring (41) and the top of the partition (3) located on both sides of the pull ring (41) form a semi-open space for installing the battery.

7. The battery oil immersion test apparatus of claim 5, wherein At least two pairs of protrusions (42) are provided along both sides of the support plate (4), and each protrusion (42) corresponds to a slide (5) on a partition (3).

8. A battery oil immersion test apparatus as defined in claim 7, wherein The two adjacent pairs of the partitions (3) form an installation channel (7) for the pull ring (41) when the support plate (4) is quickly disassembled and assembled.

9. A battery oil immersion test apparatus as defined in claim 8, wherein The length of the protrusion (42) is less than the thickness of the partition (3).

10. The battery oil-bath test apparatus as set forth in claim 1 wherein, During the oil bath test, the height of the support surface (31) is higher than the oil surface.

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