Auxiliary structure of detection and inspection equipment for low-temperature locomotive lithium battery

Abstract

The invention belongs to the technical field of lithium battery inspection, and discloses an auxiliary structure of detection and inspection equipment for a low-temperature locomotive lithium battery, which comprises a detection box, a protective door is hinged to the side wall of the detection box, a low-temperature cavity and a normal-temperature cavity are formed in the detection box, and a separation assembly is arranged between the low-temperature cavity and the normal-temperature cavity. After low-temperature detection and inspection are carried out on the locomotive lithium battery, the PLC controls the second motor to start to drive the partition plate to move upwards, and then the PLC controls the first motor to start, so that the first storage table moves into the low-temperature cavity from the normal-temperature cavity, and the second storage table moves into the low-temperature cavity from the normal-temperature cavity. And then the partition plate is controlled to move downwards to separate the low-temperature cavity from the normal-temperature cavity, so that the first storage table is subjected to low-temperature detection in the low-temperature cavity, and after detection, the first storage table is moved out in the mode to ensure that a worker does not make direct contact with the low-temperature battery, so that the frostbite risk is effectively avoided, and detection and inspection of the locomotive lithium battery are assisted.

Description

Technical Field

[0001] The invention belongs to the technical field of lithium battery inspection, and in particular relates to an auxiliary structure of a detection and inspection device for a low-temperature locomotive lithium battery. Background Art

[0002] Lithium battery is a battery with lithium metal or lithium alloy as negative electrode material and non-aqueous electrolyte solution. Low-temperature locomotive lithium battery is a special type of lithium battery designed for locomotives and other vehicles to be used in low-temperature environments. Low-temperature locomotive lithium battery has the advantages of low-temperature resistance, high energy density, long life and good safety. It is widely used in transportation and military equipment.

[0003] In the final stage of the production process or during routine maintenance, low-temperature locomotive lithium batteries must undergo a series of comprehensive tests and inspections to ensure that they meet design specifications and quality standards. These test and inspection equipment mainly include extrusion test, vibration and drop test, environmental adaptability test and low-temperature internal resistance test. Especially when conducting low-temperature testing, since the surface temperature of the lithium battery after the test is low, there is a risk of frostbite if the staff directly operates manually. Therefore, an auxiliary structure of the testing and inspection equipment for low-temperature locomotive lithium batteries is proposed. Summary of the invention

[0004] The object of the present invention is to provide an auxiliary structure for testing and inspecting equipment for low-temperature locomotive lithium batteries to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an auxiliary structure of a low-temperature locomotive lithium battery detection and inspection equipment, comprising a detection box, a side wall of which is hinged with a protective door, a low-temperature chamber and a normal temperature chamber are provided inside the detection box, a partition component is provided between the low-temperature chamber and the normal temperature chamber, and a first storage table is slidably installed inside the detection box through a moving component;

[0006] The partition assembly comprises a partition plate disposed between the low temperature chamber and the normal temperature chamber, the partition plate being slidably mounted inside the detection box, a third threaded rod being threadedly connected to the top of the partition plate, and a second motor being mounted on the top of the third threaded rod;

[0007] The moving component includes a second threaded rod embedded in the first storage platform, the second threaded rod is threadedly connected to the partition plate, a first motor is installed at one end of the second threaded rod, a sliding plate is installed on the top of the first storage platform, and a fixed component is arranged on the top of the first storage platform.

[0008] As a further technical solution of the present invention, the fixing component includes a fixing plate arranged at the top of the first storage platform, and two fixing plates are symmetrically arranged, wherein a rewarming component is arranged inside one of the fixing plates, and the inner walls of the two fixing plates are threadedly connected with a first threaded rod, and the first threaded rod is rotatably installed on the top of the first storage platform, and a first bevel gear is fixedly installed on the outer wall of the first threaded rod, and the top end of the first bevel gear is meshedly connected with a second bevel gear, and the top end of the second bevel gear is fixedly installed with a first rotating shaft.

[0009] As a further technical solution of the present invention, a baffle is fixedly connected to the side wall of the first storage table, and the baffle is slidably installed inside the detection box.

[0010] As a further technical solution of the present invention, the inner walls of the first storage platform and the sliding plate are evenly provided with through holes.

[0011] As a further technical solution of the present invention, a liquid storage box is slidably installed inside the first storage table.

[0012] As a further technical solution of the present invention, a second placement table is fixedly installed inside the normal temperature chamber, and the second placement table is arranged on one side of the first placement table.

[0013] As a further technical solution of the present invention, the rewarming component includes a first air outlet hole opened inside the fixed plate, the first air outlet holes are evenly distributed, a second connecting pipe is fixedly connected to one side of the fixed plate, a bellows is fixedly connected to the bottom end of the second connecting pipe, the bellows is embedded in the interior of the detection box, a control component is arranged inside the detection box, a fan is fixedly installed on the side wall of the detection box, and first connecting pipes are installed at both ends of the fan.

[0014] As a further technical solution of the present invention, second air outlet holes are opened on one side of the fixing plate, and the second air outlet holes are evenly distributed.

[0015] As a further technical solution of the present invention, the control component includes a first ball valve and a second ball valve arranged inside the detection box, the outer walls of the first ball valve and the second ball valve are fixedly connected with a second rotating shaft, one end of each of the two second rotating shafts is fixedly connected with a third bevel gear, the top end of the third bevel gear is meshedly connected with a fourth bevel gear, the top end of the fourth bevel gear is fixedly connected with the third rotating shaft, the top end of the third rotating shaft is fixedly installed with a gear, one side of the gear is meshedly connected with a rack plate, and the rack plate is slidably installed inside the detection box.

[0016] As a further technical solution of the present invention, two rack plates are provided, the two rack plates are fixedly connected by a connecting rod, and the two rack plates are respectively provided on both sides of the first storage platform.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention cooperates with each other through the movable component and the partition component. When the locomotive lithium battery is tested at low temperature, the locomotive lithium battery is first installed on the top of the first storage table, and the lithium battery is connected to the detection element. Then, the second motor is started by controlling the PLC. When the second motor is started, it drives the third threaded rod to rotate. When the third threaded rod rotates, it drives the partition plate to move upward to open the channel between the low-temperature chamber and the normal temperature chamber. Then, the first motor is started by controlling the PLC. When the first motor is started, it drives the second threaded rod to rotate. When the second threaded rod rotates, it drives the first storage table to move, so that the first storage table is moved from the normal temperature chamber to the low temperature chamber. Then, the low temperature chamber is separated from the normal temperature chamber by controlling the partition plate to move downward, so that the first storage table performs low temperature detection in the low temperature chamber. After the detection, the first storage table is moved out in the above manner to ensure that the staff does not directly contact the low-temperature battery, thereby effectively avoiding the risk of frostbite, so as to assist the detection and inspection of the locomotive lithium battery.

[0019] 2. The present invention arranges a fixing assembly. When the locomotive lithium battery is placed on the top of the first storage table, the first rotating shaft is rotated. The rotation of the first rotating shaft drives the rotation of the second bevel gear. The rotation of the second bevel gear drives the rotation of the first bevel gear. The rotation of the first bevel gear drives the rotation of the first threaded rod. The rotation of the first threaded rod drives the two fixed plates to move synchronously, thereby fixing the lithium battery and ensuring the stability of the battery during movement and detection.

[0020] 3. The present invention sets a temperature recovery component. After the lithium battery is tested at low temperature, the fan is started during the process of the first storage table moving from the low-temperature chamber to the normal-temperature chamber. External room-temperature gas is drawn into the test box through the first connecting pipe, connected through the bellows and the second connecting pipe, and finally discharged from the first air outlet to blow the air around the lithium battery, thereby helping the low-temperature lithium battery to return to room temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the first storage platform of the present invention;

[0024] Figure 4It is a schematic diagram of another viewing angle of the overall structure of the present invention;

[0025] Figure 5 It is a cross-sectional schematic diagram of another viewing angle of the overall structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 7 It is a cross-sectional schematic diagram of the first storage platform of the present invention.

[0028] In the figure: 1, detection box; 2, protective door; 3, low temperature chamber; 4, normal temperature chamber; 5, first storage platform; 6, through hole; 7, liquid storage box; 8, fixed plate; 9, first threaded rod; 10, first bevel gear; 11, second bevel gear; 12, first rotating shaft; 13, second threaded rod; 14, first motor; 15, partition plate; 16, third threaded rod; 17, second motor; 18, baffle; 19, second storage platform; 20, fan; 21, first connecting pipe; 22, bellows; 23, second connecting pipe; 24, first air outlet; 25, second air outlet; 26, first ball valve; 27, second ball valve; 28, second rotating shaft; 29, third bevel gear; 30, fourth bevel gear; 31, third rotating shaft; 32, gear; 33, rack plate; 34, connecting rod; 35, sliding plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figures 1 to 7 As shown, in an embodiment of the present invention, an auxiliary structure of a low-temperature locomotive lithium battery detection and inspection equipment includes a detection box 1, a protective door 2 is hingedly connected to the side wall of the detection box 1, a low-temperature chamber 3 and a normal temperature chamber 4 are opened inside the detection box 1, a partition component is provided between the low-temperature chamber 3 and the normal temperature chamber 4, and a first storage table 5 is slidably installed inside the detection box 1 through a moving component;

[0031] The partition assembly includes a partition plate 15 disposed between the low temperature chamber 3 and the normal temperature chamber 4. The partition plate 15 is slidably mounted inside the detection box 1. A third threaded rod 16 is threadedly connected to the top of the partition plate 15. A second motor 17 is mounted on the top of the third threaded rod 16.

[0032] The moving component includes a second threaded rod 13 embedded in the first storage platform 5, the second threaded rod 13 is threadedly connected to the partition plate 15, a first motor 14 is installed at one end of the second threaded rod 13, a sliding plate 35 is installed on the top of the first storage platform 5, and a fixed component is arranged on the top of the first storage platform 5.

[0033] Existing: CN208367183U discloses a lithium battery high and low temperature performance testing device and CN210719744U discloses a high and low temperature environment chamber for lithium battery testing. The patent discloses a specific low temperature detection method. The specific low temperature detection method in this application document is consistent with the above patents, and will not be described in detail here;

[0034] By cooperating with each other in the movable assembly and the partition assembly, when the locomotive lithium battery is subjected to low-temperature detection and inspection, the locomotive lithium battery is first installed on the top of the first storage table 5, and the lithium battery is connected to the detection element, and then the second motor 17 is started by controlling the PLC, and the second motor 17 drives the third threaded rod 16 to rotate when it is started, and the third threaded rod 16 drives the partition plate 15 to move upward when it rotates, so as to open the passage between the low-temperature chamber 3 and the normal temperature chamber 4;

[0035] Then, the first motor 14 is started by controlling the PLC. When the first motor 14 is started, it drives the second threaded rod 13 to rotate. When the second threaded rod 13 rotates, it drives the first storage platform 5 to move, so that the first storage platform 5 is moved from the normal temperature chamber 4 to the low temperature chamber 3. Then, the partition plate 15 is controlled to move downward to separate the low temperature chamber 3 from the normal temperature chamber 4, so that the first storage platform 5 can perform low temperature detection in the low temperature chamber 3. After the detection, the first storage platform 5 is moved out in the above manner to ensure that the staff does not directly contact the low temperature battery, thereby effectively avoiding the risk of frostbite, so as to assist the detection and inspection of the locomotive lithium battery.

[0036] like Figure 3 and Figure 7 As shown, the fixing assembly includes a fixing plate 8 arranged at the top of the first storage table 5, and two fixing plates 8 are symmetrically arranged. A rewarming assembly is arranged inside one of the fixing plates 8. The inner walls of the two fixing plates 8 are both threadedly connected with a first threaded rod 9, and the first threaded rod 9 is rotatably installed on the top of the first storage table 5. The outer wall of the first threaded rod 9 is fixedly installed with a first bevel gear 10, and the top end of the first bevel gear 10 is meshedly connected with a second bevel gear 11, and the top end of the second bevel gear 11 is fixedly installed with a first rotating shaft 12.

[0037] The outer wall of the first threaded rod 9 is provided with two threads, and the two threads are arranged in opposite directions, so that the two fixing plates 8 can move relative to each other;

[0038] Through the setting of the fixing component, when the locomotive lithium battery is placed on the top of the first storage platform 5, the first rotating shaft 12 is rotated, and the rotation of the first rotating shaft 12 drives the rotation of the second bevel gear 11, and the rotation of the second bevel gear 11 drives the rotation of the first bevel gear 10, and the rotation of the first bevel gear 10 drives the rotation of the first threaded rod 9, and the rotation of the first threaded rod 9 drives the two fixing plates 8 to move synchronously, thereby fixing the lithium battery, and ensuring the stability of the battery during movement and detection.

[0039] like Figure 2 , Figure 3 and Figure 7 As shown, a baffle 18 is fixedly connected to the side wall of the first storage platform 5 , and the baffle 18 is slidably installed inside the detection box 1 .

[0040] The inner wall of the detection box 1 is provided with a slide groove for the first storage table 5 to slide. When the first storage table 5 moves into the low-temperature chamber 3, the slide groove is blocked by the baffle 18 to prevent the low-temperature gas in the low-temperature chamber 3 from leaking out of the slide groove, thereby ensuring the accuracy and reliability of the detection results.

[0041] like Figure 2 , Figure 3 and Figure 7 As shown, the inner walls of the first storage platform 5 and the sliding plate 35 are uniformly provided with through holes 6 .

[0042] When the lithium battery leaks during testing, the electrolyte is discharged through the through hole 6 to prevent the electrolyte from remaining outside the lithium battery and corroding it, thereby affecting the performance and life of the device.

[0043] like Figure 2 and Figure 3 As shown, a liquid storage box 7 is slidably installed inside the first storage table 5.

[0044] like Figure 2 and Figure 5 As shown, a second placement table 19 is fixedly installed inside the normal temperature chamber 4 , and the second placement table 19 is arranged on one side of the first placement table 5 .

[0045] The second storage platform 19 is also slidably mounted with a liquid storage box 7 and a sliding plate 35, and the first threaded rod 9 is also uniformly provided with through holes 6;

[0046] After the lithium battery is tested, the sliding plate 35 inside the first storage platform 5 can be pulled out and installed in the second storage platform 19 to restore the room temperature in the normal temperature chamber 4;

[0047] Then, the sliding plate 35 inside the second storage platform 19 is installed back into the first storage platform 5, so that the first storage platform 5 can test the next lithium battery, thereby improving the efficiency of batch testing.

[0048] like Figures 5 to 7 As shown, the rewarming component includes a first air outlet 24 opened inside the fixed plate 8, the first air outlet holes 24 are evenly distributed, a second connecting pipe 23 is fixedly connected to one side of the fixed plate 8, a bellows 22 is fixedly connected to the bottom end of the second connecting pipe 23, the bellows 22 is embedded in the interior of the detection box 1, a control component is arranged inside the detection box 1, a fan 20 is fixedly installed on the side wall of the detection box 1, and first connecting pipes 21 are installed at both ends of the fan 20.

[0049] By setting the temperature recovery component, after the lithium battery is tested at low temperature, the fan 20 is started during the process of the first storage table 5 moving from the low temperature chamber 3 to the normal temperature chamber 4, and the external room temperature gas is drawn into the test box 1 through the first connecting pipe 21, and connected through the bellows 22 and the second connecting pipe 23, and finally discharged from the first air outlet 24, blowing the air around the lithium battery to help the low temperature lithium battery recover to room temperature;

[0050] At the same time, the first air outlet 24 blows air upwards to prevent the gas from directly blowing onto the surface of the lithium battery.

[0051] like Figure 7 As shown, one side of the fixing plate 8 is provided with second air outlet holes 25, and the second air outlet holes 25 are evenly distributed.

[0052] During the blowing process, blowing air through the second air outlet 25 in the direction of the first storage platform 5 helps to blow the room temperature gas to promote its flow, thereby improving the reheating efficiency of the lithium battery.

[0053] like Figure 5 and Figure 6 As shown, the control component includes a first ball valve 26 and a second ball valve 27 arranged inside the detection box 1, the outer walls of the first ball valve 26 and the second ball valve 27 are fixedly connected with a second rotating shaft 28, one end of the two second rotating shafts 28 are fixedly connected with a third bevel gear 29, the top end of the third bevel gear 29 is meshedly connected with a fourth bevel gear 30, the top end of the fourth bevel gear 30 is fixedly connected with a third rotating shaft 31, the top end of the third rotating shaft 31 is fixedly installed with a gear 32, one side of the gear 32 is meshedly connected with a rack plate 33, and the rack plate 33 is slidably installed inside the detection box 1.

[0054] Two channels are provided in the detection box 1, one of which is connected to the first connecting pipe 21 and the bellows 22, and the first ball valve 26 is located in the channel;

[0055] Another channel is connected with the first connecting pipe 21, the bellows 22 and the second storage platform 19, and the second ball valve 27 is located in the channel;

[0056] When the first storage platform 5 is located in the low temperature chamber 3, the first ball valve 26 is in an open state and the second ball valve 27 is in a closed state;

[0057] Through the setting of the control component, when the lithium battery is tested at low temperature, the first storage platform 5 moves from the low temperature chamber 3 to the normal temperature chamber 4, and the first storage platform 5 also moves to one end of the rack plate 33. When the first storage platform 5 moves to one side of the second storage platform 19 and contacts the rack plate 33, the rack plate 33 is driven to move to one side of the gear 32. The movement of the rack plate 33 drives the rotation of the gear 32. The rotation of the gear 32 drives the rotation of the third rotating shaft 31. The rotation of the third rotating shaft 31 drives the fourth bevel gear 30. The rotation of the fourth bevel gear 30 drives the rotation of the two third bevel gears 29, the rotation of the two third bevel gears 29 drives the rotation of the two second rotating shafts 28, and the rotation of the two second rotating shafts 28 respectively drives the second ball valve 27 and the first ball valve 26 to rotate, so that the first ball valve 26 is closed and the second ball valve 27 is opened, so that the gas is discharged into the second storage table 19 and discharged upward from the through hole 6 opened in the second storage table 19, so as to facilitate the reheating of the lithium battery on the top of the first storage table 5;

[0058] The second storage table 19 is porous, which can reduce the influence of direct blowing.

[0059] like Figures 1 to 7 As shown, two rack plates 33 are provided, and the two rack plates 33 are fixedly connected by a connecting rod 34 . The two rack plates 33 are respectively provided on both sides of the first storage platform 5 .

[0060] When the first storage platform 5 moves from the low temperature chamber 3 to the normal temperature chamber 4 and contacts one of the rack plates 33, the fixed plate 8 closes the exhaust, and the wind is discharged from the second storage platform 19;

[0061] When the first placement table 5 moves toward the low-temperature chamber 3 side of the normal-temperature chamber 4 and contacts the other rack plate 33 , the second placement table 19 closes the exhaust, and the wind is discharged from the fixed plate 8 .

[0062] Working principle and usage process:

[0063] When performing low-temperature detection and inspection on a locomotive lithium battery, firstly, the locomotive lithium battery is installed on the top of the first storage platform 5, and the lithium battery is connected to the detection element, and then the second motor 17 is started by controlling the PLC, and when the second motor 17 is started, the third threaded rod 16 is driven to rotate, and when the third threaded rod 16 rotates, the partition plate 15 is driven to move upward, and the passage between the low-temperature chamber 3 and the normal temperature chamber 4 is opened;

[0064] Then, the first motor 14 is started by controlling the PLC, and when the first motor 14 is started, the second threaded rod 13 is driven to rotate, and when the second threaded rod 13 rotates, the first placement table 5 is driven to move, so that the first placement table 5 is moved from the normal temperature chamber 4 to the low temperature chamber 3, and then the partition plate 15 is controlled to move downward to separate the low temperature chamber 3 from the normal temperature chamber 4, so that the first placement table 5 performs low temperature detection in the low temperature chamber 3;

[0065] After the test, the first storage table 5 is removed in the above manner, and the fan 20 is started at the same time, and the external room temperature gas is drawn into the test box 1 through the first connecting pipe 21, and connected through the bellows 22 and the second connecting pipe 23, and finally discharged from the first air outlet 24 and the second air outlet 25, blowing the air around the lithium battery to help the low-temperature lithium battery return to room temperature;

[0066] When the first storage table 5 moves to one side of the second storage table 19 and contacts the rack plate 33, the rack plate 33 is driven to move toward one side of the gear 32. The movement of the rack plate 33 drives the gear 32 to rotate. The rotation of the gear 32 drives the third rotating shaft 31 to rotate. The rotation of the third rotating shaft 31 drives the fourth bevel gear 30 to rotate. The rotation of the fourth bevel gear 30 drives the rotation of the two third bevel gears 29. The rotation of the two third bevel gears 29 drives the rotation of the two second rotating shafts 28. The rotation of the two second rotating shafts 28 drives the second ball valve 27 and the first ball valve 26 to rotate respectively, so that the first ball valve 26 is closed and the second ball valve 27 is opened, so that the gas is discharged into the second storage table 19 and discharged upward from the through hole 6 opened in the second storage table 19.

[0067] Then, the sliding plate 35 inside the first storage table 5 is pulled out and installed in the second storage table 19, so that it can be restored to room temperature in the normal temperature chamber 4, and the sliding plate 35 inside the second storage table 19 is installed back into the first storage table 5, so that the first storage table 5 can detect the next lithium battery and perform continuous operation.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary structure for testing equipment for low-temperature locomotive lithium batteries, comprising a testing box (1), characterized in that: The side wall of the detection box (1) is hinged with a protective door (2), the interior of the detection box (1) is provided with a low-temperature chamber (3) and a normal-temperature chamber (4), a partition component is provided between the low-temperature chamber (3) and the normal-temperature chamber (4), and a first storage table (5) is slidably installed inside the detection box (1) via a moving component; The partition assembly comprises a partition plate (15) arranged between the low temperature chamber (3) and the normal temperature chamber (4); the partition plate (15) is slidably mounted inside the detection box (1); a third threaded rod (16) is threadedly connected to the top of the partition plate (15); a second motor (17) is mounted on the top of the third threaded rod (16); The moving component comprises a second threaded rod (13) embedded in the first storage platform (5), the second threaded rod (13) is threadedly connected to the partition plate (15), a first motor (14) is installed at one end of the second threaded rod (13), a sliding plate (35) is installed on the top of the first storage platform (5), and a fixing component is arranged at the top of the first storage platform (5).

2. The auxiliary structure of the low-temperature locomotive lithium battery detection and inspection equipment according to claim 1 is characterized in that: The fixing assembly comprises a fixing plate (8) arranged at the top of the first storage platform (5), two fixing plates (8) are symmetrically arranged, one of the fixing plates (8) is provided with a rewarming assembly, the inner walls of the two fixing plates (8) are both threadedly connected with a first threaded rod (9), the first threaded rod (9) is rotatably mounted on the top of the first storage platform (5), a first bevel gear (10) is fixedly mounted on the outer wall of the first threaded rod (9), the top end of the first bevel gear (10) is meshedly connected with a second bevel gear (11), and the top end of the second bevel gear (11) is fixedly mounted with a first rotating shaft (12).

3. The auxiliary structure of the low-temperature locomotive lithium battery detection and inspection equipment according to claim 2 is characterized in that: A baffle (18) is fixedly connected to the side wall of the first storage platform (5), and the baffle (18) is slidably mounted inside the detection box (1).

4. The auxiliary structure of the low-temperature locomotive lithium battery detection and inspection equipment according to claim 2 is characterized in that: The inner walls of the first storage platform (5) and the sliding plate (35) are evenly provided with through holes (6).

5. The auxiliary structure of the low-temperature locomotive lithium battery detection and inspection equipment according to claim 2 is characterized in that: A liquid storage box (7) is slidably mounted inside the first storage platform (5).

6. The auxiliary structure of the testing equipment for low-temperature locomotive lithium batteries according to claim 1 is characterized in that: A second storage platform (19) is fixedly installed inside the normal temperature chamber (4), and the second storage platform (19) is arranged on one side of the first storage platform (5).

7. The auxiliary structure of the low-temperature locomotive lithium battery detection and inspection equipment according to claim 2 is characterized in that: The rewarming component comprises first air outlet holes (24) opened inside the fixing plate (8), the first air outlet holes (24) are evenly distributed, a second connecting pipe (23) is fixedly connected to one side of the fixing plate (8), a bellows (22) is fixedly connected to the bottom end of the second connecting pipe (23), the bellows (22) is embedded in the interior of the detection box (1), a control component is arranged inside the detection box (1), a fan (20) is fixedly installed on the side wall of the detection box (1), and the first connecting pipes (21) are installed at both ends of the fan (20).

8. The auxiliary structure of the testing equipment for low-temperature locomotive lithium batteries according to claim 7 is characterized in that: One side of the fixing plate (8) is provided with second air outlet holes (25), and the second air outlet holes (25) are evenly distributed.

9. The auxiliary structure of the testing equipment for low-temperature locomotive lithium batteries according to claim 7 is characterized in that: The control assembly comprises a first ball valve (26) and a second ball valve (27) arranged inside the detection box (1); the outer walls of the first ball valve (26) and the second ball valve (27) are both fixedly connected with a second rotating shaft (28); one end of each of the two second rotating shafts (28) is fixedly connected with a third bevel gear (29); the top end of the third bevel gear (29) is meshedly connected with a fourth bevel gear (30); the top end of the fourth bevel gear (30) is fixedly connected with a third rotating shaft (31); the top end of the third rotating shaft (31) is fixedly mounted with a gear (32); one side of the gear (32) is meshedly connected with a rack plate (33); the rack plate (33) is slidably mounted inside the detection box (1).

10. The auxiliary structure of the testing equipment for low-temperature locomotive lithium batteries according to claim 9, characterized in that: Two rack plates (33) are provided, and the two rack plates (33) are fixedly connected via a connecting rod (34). The two rack plates (33) are respectively provided on both sides of the first storage platform (5).

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