A sodium-ion battery impact testing device

Abstract

The utility model belongs to the battery impact test technical field, specifically is a kind of sodium ion battery impact test device, including support ground base plate and sodium ion battery that is movably jointed on the top outer side surface of support ground base plate, and press down sealing cover that is movably jointed on the top outer side surface of support ground base plate and wrapped on the outer side surface of sodium ion battery, the top surface of support ground base plate is fixedly installed with four groups of limit sliding rod. When the data collection of different puncture depth to current height is carried out, cooperate with electric motor to rotate, and make the threaded sliding block on the outer side surface of electric motor output end side surface drop, the outer side surface of rectangular cone spike extends out cone spike impact head, under the natural drop of press down sealing cover, when rectangular cone spike puncture into sodium ion battery internal depth, the effect of collecting data when sodium ion battery is punctured by different length sharp object can be observed.

Description

Technical Field

[0001] This utility model belongs to the field of battery impact testing technology, specifically a sodium-ion battery impact testing device. Background Technology

[0002] With the widespread adoption of new energy vehicles, the safety of lithium batteries, as the power source for new energy batteries, has always been a top priority. Continuous testing and experimentation are needed to understand the battery pack's performance under different environments. Lithium battery manufacturers require impact tests on specific models. Sodium-ion batteries, a type of rechargeable battery, are commonly used as backup power in rail transportation. They primarily function by moving sodium ions between the positive and negative electrodes. Since the raw materials for sodium-ion batteries are more abundant than those for lithium batteries, their cost is lower. Both the positive and negative electrodes of sodium-ion batteries can use aluminum foil, resulting in lower manufacturing costs. Sodium-ion batteries also offer fast charging, high safety, and can withstand temperatures ranging from -30 to 80 degrees Celsius without significant energy loss. Furthermore, they demonstrate good stability through various impact and pressure tests, such as needle penetration.

[0003] A patent with publication number CN119986427A discloses a new energy lithium battery impact testing device, including a test platform and a support column. The support column is fixed to the lower surface of the test platform, and a shell is fixed to the upper surface of the test platform. Speed ​​adjustment mechanisms are provided on both opposite outer walls of the shell, and docking mechanisms are provided on both opposite sides of the upper surface of the test platform. Impact pins and impact blocks are provided on both sides of the top of the inner cavity of the shell. A rotating cover is slidably connected to one end of the upper surface of the test platform, and a linkage mechanism is provided inside the test platform. This invention provides a new energy lithium battery impact testing device capable of testing cylindrical and cuboid-shaped batteries. It can clamp cylindrical and cuboid-shaped lithium batteries. If the type of impact test needs to be changed, it can be achieved through the linkage mechanism. It has a high degree of automation, eliminating the need for manual replacement of impact objects by technicians, saving manpower and time.

[0004] In current technologies, the initial velocity of the impactor cannot be controlled during impact tests on existing sodium-ion batteries. As a result, the penetration depth of the impactor is limited when puncturing the sodium-ion battery. This leads to the problem that the puncture force is the same for a single initial velocity, resulting in the same efficiency and data when testing different batteries.

[0005] Therefore, a sodium-ion battery impact testing device is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve the above-mentioned problems, a sodium-ion battery impact testing device is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A sodium-ion battery impact testing device of this utility model includes a supporting base plate and a sodium-ion battery movably attached to the outer surface of the top of the supporting base plate, a pressure sealing cover movably attached to the outer surface of the top of the supporting base plate and wrapped around the outer surface of the sodium-ion battery, four sets of limiting slide rods are fixedly installed on the top surface of the supporting base plate, the outer surface of the pressure sealing cover is movably sleeved on the outer surface of the limiting slide rods, a counterweight is detachably installed on the top outer surface of the pressure sealing cover, a cone-shaped impact head is fixedly connected to the bottom surface of the pressure sealing cover and located in the middle, and a height scale is fixedly connected to one side surface of the supporting base plate.

[0008] Preferably, an electric motor is fixedly installed on the inner side wall of the top of the cone-shaped impact head, and a rectangular groove is formed inside the bottom layer of the cone-shaped impact head.

[0009] Preferably, a threaded slider is threadedly fitted onto the outer surface of the output end of the electric motor, and an elastic buffer wire is fixedly connected to the outer surface of the threaded slider.

[0010] Preferably, a rectangular conical spike is fixedly connected to one end of the elastic buffer wire, and the outer surface of the rectangular conical spike is movably sleeved on the inner wall of the rectangular groove.

[0011] Preferably, the outer surface of the bottom end of the threaded slider is movably overlapped with the outer surface of the top of the rectangular conical burr, and a snap-fit ​​groove is provided on the bottom surface of the pressing sealing cover.

[0012] Preferably, a hydraulic rod is fixedly installed on the top surface of the supporting base plate and at one edge position, and a pull-out plate is fixedly connected to the output end of the hydraulic rod.

[0013] Preferably, the top surface of the pull-out plate is movably overlapped with the bottom outer surface of the sodium-ion battery, and an overlap anti-collision plate is provided on the outer surface of the limiting slide rod.

[0014] Preferably, a water pump is fixedly installed on the top surface of the supporting base plate and at the other edge, and a water spray box is provided on the top surface of the limiting slide rod.

[0015] Preferably, a hose is fixedly connected to the output end of the water tank, and the other end of the hose is disposed on the top surface of the pressure sealing cover.

[0016] Preferably, the inner wall of the snap-fit ​​slot is movably fitted onto the outer surface of the output end of the water pump, and the inner wall of the snap-fit ​​slot on the other side is movably overlapped onto the outer surface of the hydraulic rod.

[0017] The beneficial effects of this utility model are:

[0018] This invention provides a sodium-ion battery impact testing device. The sodium-ion battery is moved to the top surface of a supporting substrate. Different weights of counterweights are added to the top surface of the pressure-sealing cover according to the required initial velocity, simulating the impact force on the sodium-ion battery. A lift is used to raise the pressure-sealing cover, and the initial velocity of the downward impact force at the current height is controlled according to the height of the scale. The pressure-sealing cover is then released and lowered vertically under the constraint of a limiting slide rod. The impact force generated by the weight of the counterweights causes the pressure-sealing cover to close onto the outer surface of the sodium-ion battery. At this point, a conical impact head inside the pressure-sealing cover strikes the surface of the sodium-ion battery. Impact data of the sodium-ion battery is collected based on the puncture depth and indentation depth caused by the conical impact head on the battery surface.

[0019] This invention provides a sodium-ion battery impact testing device. When collecting data on different puncture depths at a given height, it works in conjunction with an electric motor to rotate, causing a threaded slider on the outer surface of the motor's output end to lower a rectangular cone-shaped spike. This causes the rectangular cone-shaped spike to extend beyond the outer surface of the spike impact head. As the sealing cap is pressed down and falls naturally, the device can observe the data collection effect when the sodium-ion battery is punctured by sharp objects of different lengths, based on the depth to which the rectangular cone-shaped spike penetrates the sodium-ion battery.

[0020] This invention provides a sodium-ion battery impact testing device. When the cone-shaped impact head impacts the sodium-ion battery, it works in conjunction with the pressure sealing cover to enclose the sodium-ion battery, thus sealing the inside of the sodium-ion battery. At this time, the sodium-ion battery spontaneously combusts due to the impact. Then, a water spray tank sprays cooling water at high speed into the inside of the hose, and the water is poured from top to bottom into the inside of the pressure sealing cover, thereby cooling the surface of the sodium-ion battery. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the lifting and lowering three-dimensional structure of the pressing sealing cover in this utility model;

[0024] Figure 3 This is a three-dimensional cross-sectional view of the lifting and lowering structure of the pressure sealing cover in this utility model;

[0025] Figure 4 This is a three-dimensional cross-sectional view of the closed pressure sealing cover in this utility model;

[0026] Figure 5 This is a partial cross-sectional perspective view of the three-dimensional structure of the pressure sealing cover in this utility model;

[0027] Figure 6 This is a cross-sectional three-dimensional structural diagram of the cone-shaped impact head in this utility model.

[0028] Legend: 11. Support base plate; 111. Overlapping anti-collision plate; 112. Limiting slide bar; 113. Water spray tank; 114. Hydraulic rod; 115. Water pump; 12. Press-down sealing cover; 121. Snap-fit ​​groove; 122. Counterweight; 123. Conical impact head; 124. Electric motor; 125. Threaded slider; 126. Elastic buffer wire; 127. Rectangular conical spike; 13. Sodium-ion battery; 14. Height scale. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Specific implementation examples are given below.

[0031] Please see Figures 1-6 This utility model provides a sodium-ion battery impact testing device, including a supporting base plate 11 and a sodium-ion battery 13 movably overlapped on the top outer surface of the supporting base plate 11. A pressure sealing cover 12 is movably overlapped on the top outer surface of the supporting base plate 11 and wrapped around the outer surface of the sodium-ion battery 13. Four sets of limiting slide rods 112 are fixedly installed on the top surface of the supporting base plate 11. The outer surface of the pressure sealing cover 12 is movably sleeved on the outer surface of the limiting slide rods 112. A counterweight block 122 is detachably installed on the top outer surface of the pressure sealing cover 12. A cone-shaped impact head 123 is fixedly connected to the bottom surface of the pressure sealing cover 12 and located in the middle position. A height scale 14 is fixedly connected to one side surface of the supporting base plate 11.

[0032] During operation, the sodium-ion battery 13 is moved to the top surface of the supporting base plate 11. At this time, according to the different initial speeds required, counterweights 122 of different weights are added to the top surface of the pressing sealing cover 12 to simulate the sodium-ion battery 13 being subjected to different external impact forces. At this time, the pressing sealing cover 12 is raised using a lift, and the initial speed of the falling impact force generated at the current height is controlled according to the height of the height scale 14.

[0033] The pressure sealing cover 12 is released and descends vertically under the limitation of the limiting slide bar 112. Under the impact force generated by the weight of the counterweight block 122, the pressure sealing cover 12 closes to the outer surface of the sodium-ion battery 13. At this time, the cone-shaped impact head 123 inside the pressure sealing cover 12 impacts the surface of the sodium-ion battery 13. The impact data of the sodium-ion battery 13 is collected based on the puncture depth and the indentation depth caused by the cone-shaped impact head 123 on the surface of the sodium-ion battery 13.

[0034] Furthermore, such as Figures 1 to 6 As shown, an electric motor 124 is fixedly installed on the inner side wall of the top of the cone impact head 123. A rectangular groove is opened inside the bottom layer of the cone impact head 123. A threaded slider 125 is threadedly and movably sleeved on the outer side surface of the output end of the electric motor 124. An elastic buffer wire 126 is fixedly connected to the outer side surface of the threaded slider 125. A rectangular cone 127 is fixedly connected to one end of the elastic buffer wire 126. The outer side surface of the rectangular cone 127 is movably sleeved on the inner side wall of the rectangular groove. The outer side surface of the bottom end of the threaded slider 125 is movably overlapped on the outer side surface of the top of the rectangular cone 127. A snap-fit ​​groove 121 is opened on the bottom surface of the pressure sealing cover 12. The inner side wall of the snap-fit ​​groove 121 is movably sleeved on the outer side surface of the output end of the water pump 115. The inner side wall of the snap-fit ​​groove 121 on the other side is movably overlapped on the outer side surface of the hydraulic rod 114.

[0035] During operation, when collecting data at different puncture depths at the current height, the electric motor 124 rotates, causing the threaded slider 125 on the outer surface of the output end of the electric motor 124 to descend the rectangular cone 127, extending the rectangular cone 127 beyond the outer surface of the cone impact head 123. Under the natural fall of the pressing sealing cover 12, the effect of collecting data on the sodium-ion battery 13 when punctured by sharp objects of different lengths can be observed based on the depth to which the rectangular cone 127 penetrates into the sodium-ion battery 13.

[0036] Furthermore, such as Figures 1 to 4As shown, a hydraulic rod 114 is fixedly installed on the top surface of the supporting base plate 11 and at one edge position. A pull plate is fixedly connected to the output end of the hydraulic rod 114. The top surface of the pull plate movably overlaps the bottom outer surface of the sodium-ion battery 13. An overlapping anti-collision plate 111 is provided on the outer surface of the limiting slide rod 112. A water pump 115 is fixedly installed on the top surface of the supporting base plate 11 and at the other edge position. A water spray tank 113 is provided on the top surface of the limiting slide rod 112. A hose is fixedly connected to the output end of the water spray tank 113. The other end of the hose is provided on the top surface of the pressure sealing cover 12.

[0037] During operation, when the cone-shaped impact head 123 impacts the sodium-ion battery 13, it works in conjunction with the pressing sealing cover 12 to enclose the sodium-ion battery 13, thus sealing the inside of the sodium-ion battery 13. At this time, the sodium-ion battery 13 spontaneously combusts due to the impact, and then the water spray tank 113 sprays cooling water at high speed into the inside of the hose, allowing the water to flow from top to bottom into the inside of the pressing sealing cover 12, thereby cooling the surface of the sodium-ion battery 13.

[0038] Then, the excess cooling water inside the lower sealing cover 12 is quickly extracted by the water pump 115, so that the water inside the lower sealing cover 12 can be kept at a low temperature, thereby rapidly cooling the surface of the sodium-ion battery 13. At the same time, the rinsing of the water source can settle the harmful substances generated when the sodium-ion battery 13 spontaneously combusts, and collect them by the water pump 115, reducing the effect of harmful substances spilling out.

[0039] Working principle: The sodium-ion battery 13 is moved to the top surface of the supporting base plate 11. At this time, according to the different initial speeds required, counterweights 122 of different weights are added to the top surface of the pressing sealing cover 12 to simulate the sodium-ion battery 13 being subjected to different external impact forces. At this time, the lifting platform is used to raise the pressing sealing cover 12, and the initial speed of the falling impact force generated at the current height is controlled according to the height of the height scale 14.

[0040] The pressure sealing cover 12 is released and descends vertically under the limitation of the limiting slide bar 112. Under the impact force generated by the weight of the counterweight 122, the pressure sealing cover 12 closes to the outer surface of the sodium-ion battery 13. At this time, the cone-shaped impact head 123 inside the pressure sealing cover 12 impacts the surface of the sodium-ion battery 13. The impact data of the sodium-ion battery 13 is collected based on the puncture depth and the indentation depth of the cone-shaped impact head 123 on the surface of the sodium-ion battery 13.

[0041] When collecting data at different puncture depths at the current height, the electric motor 124 rotates, causing the threaded slider 125 on the outer surface of the output end of the electric motor 124 to descend the rectangular cone 127, extending the rectangular cone 127 beyond the outer surface of the cone impact head 123. Under the natural fall of the pressing sealing cover 12, the effect of collecting data when the sodium-ion battery 13 is punctured by sharp objects of different lengths can be observed based on the depth to which the rectangular cone 127 penetrates into the sodium-ion battery 13.

[0042] When the cone-shaped impact head 123 impacts the sodium-ion battery 13, it works in conjunction with the pressing sealing cover 12 to enclose the sodium-ion battery 13, making the inside of the sodium-ion battery 13 sealed. At this time, the sodium-ion battery 13 spontaneously combusts due to the impact. Then, the water spray tank 113 sprays cooling water at high speed into the inside of the hose, and the water is poured into the inside of the pressing sealing cover 12 from top to bottom, which has the effect of cooling the surface of the sodium-ion battery 13.

[0043] Then, the excess cooling water inside the lower sealing cover 12 is quickly extracted by the water pump 115, so that the water inside the lower sealing cover 12 can be kept at a low temperature, thereby rapidly cooling the surface of the sodium-ion battery 13. At the same time, the rinsing of the water source can settle the harmful substances generated when the sodium-ion battery 13 spontaneously combusts, and collect them by the water pump 115, reducing the effect of harmful substances spilling out.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sodium-ion battery impact testing device, comprising a supporting base plate (11) and a sodium-ion battery (13) movably attached to the outer surface of the top of the supporting base plate (11), and a pressure sealing cover (12) movably attached to the outer surface of the top of the supporting base plate (11) and wrapped around the outer surface of the sodium-ion battery (13), characterized in that: Four sets of limiting slide rods (112) are fixedly installed on the top surface of the supporting base plate (11). The outer surface of the pressing sealing cover (12) is movably sleeved on the outer surface of the limiting slide rods (112). A counterweight (122) is detachably installed on the top outer surface of the pressing sealing cover (12). A cone impact head (123) is fixedly connected to the bottom surface of the pressing sealing cover (12) and located in the middle position. A height scale (14) is fixedly connected to one side surface of the supporting base plate (11).

2. The sodium-ion battery impact testing device according to claim 1, characterized in that: An electric motor (124) is fixedly installed on the inner side wall of the top of the cone-shaped impact head (123), and a rectangular groove is provided inside the bottom layer of the cone-shaped impact head (123).

3. The sodium-ion battery impact testing device according to claim 2, characterized in that: A threaded slider (125) is threadedly fitted onto the outer surface of the output end of the electric motor (124), and an elastic buffer wire (126) is fixedly connected to the outer surface of the threaded slider (125).

4. The sodium-ion battery impact testing device according to claim 3, characterized in that: A rectangular conical spike (127) is fixedly connected to one end of the elastic buffer wire (126), and the outer surface of the rectangular conical spike (127) is movably sleeved on the inner wall of the rectangular groove.

5. The sodium-ion battery impact testing device according to claim 4, characterized in that: The bottom outer surface of the threaded slider (125) is movably overlapped on the top outer surface of the rectangular cone thorn (127), and a snap-fit ​​groove (121) is provided on the bottom surface of the pressing sealing cover (12).

6. The sodium-ion battery impact testing device according to claim 1, characterized in that: A hydraulic rod (114) is fixedly installed on the top surface of the supporting base plate (11) and at one side edge position, and a pull plate is fixedly connected to the output end of the hydraulic rod (114).

7. A sodium-ion battery impact testing device according to claim 6, characterized in that: The top surface of the pull-out plate is movably overlapped with the bottom outer surface of the sodium-ion battery (13), and an overlapped anti-collision plate (111) is provided on the outer surface of the limiting slide bar (112).

8. The sodium-ion battery impact testing device according to claim 7, characterized in that: A water pump (115) is fixedly installed on the top surface of the supporting base plate (11) and at the other edge position, and a water spray box (113) is provided on the top surface of the limiting slide bar (112).

9. A sodium-ion battery impact testing device according to claim 8, characterized in that: A hose is fixedly connected to the output end of the water tank (113), and the other end of the hose is set on the top surface of the pressure sealing cover (12).

10. A sodium-ion battery impact testing device according to claim 5, characterized in that: The inner wall of the snap-fit ​​slot (121) is movably fitted onto the outer surface of the output end of the water pump (115), and the inner wall of the snap-fit ​​slot (121) on the other side is movably overlapped onto the outer surface of the hydraulic rod (114).

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