Lithium battery pack reliability testing device

Abstract

The utility model discloses a lithium battery pack reliability testing device, and relates to the technical field of lithium battery pack testing, the lithium battery pack reliability testing device comprises an explosion-proof box, the main body of the explosion-proof box is a box body structure with a one-way opening at the front end, and a baffle plate is installed on the opening at the front end of the explosion-proof box. According to the utility model, the guide rail is fixedly connected in the explosion-proof box, so that when the lithium battery pack is assembled on the inner side of the bottom plate and the inner side of the side plate, the lithium battery pack can be impacted towards one side of the puncture assembly fixedly connected in the explosion-proof box through the sliding of the moving seat along the guide rail so as to carry out reliability detection; and through the arrangement of the bottom plate and the side plates, when the lithium battery pack is placed on the bottom plate, the lithium battery pack placed on the bottom plate can be rapidly clamped and limited by holding the rotary knob and rotating the limiting rods and penetrating the limiting rods into the side plates.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pack testing, in particular to a lithium battery pack reliability testing device. Background Art

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive / negative electrode material and uses non-aqueous electrolyte solution. In 1912, lithium metal battery was first proposed and studied by Gilbert N.Lewis. There is a patent for a modular lithium battery test device, patent publication number CN203259632U. The utility model relates to a modular lithium battery test device, including a top plate, a telescopic cylinder, and a piston rod matched with the telescopic cylinder. The end of the telescopic cylinder without a piston rod is connected and fixed to the bottom surface of the top plate, and the end of the piston rod extending out of the telescopic cylinder is connected to a connecting plate. The bottom of the connecting plate is fixed with a probe mounting seat, and also includes a group of probes with a retaining ring on the outside, the retaining ring is located between the upper and lower probe mounting plates, and the probe external sliding sleeve located between the retaining ring and the upper probe mounting plate has a spring, the aperture of the upper probe mounting hole is smaller than the outer diameter of the spring, the inner diameter of the spring is smaller than the diameter of the retaining ring, and the aperture of the lower probe mounting hole is smaller than the diameter of the retaining ring. The utility model ingeniously arranges a probe installation plate with a double-layer structure, and cooperates with the double-layer plate through a spring outside the probe, which not only has the function of locking and installing the probe, but also can assist the probe to be pressed tightly on the battery surface during detection.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: although it can assist in limiting the probe during use, due to the lack of an effective impact test structure, the lithium battery pack is less effective during slow puncture tests and cannot simulate the impact during movement. Therefore, we propose a lithium battery pack reliability test device to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a lithium battery pack reliability testing device, which solves the problem that although the prior art can assist in limiting the probe during use, due to the lack of an effective impact test structure, the lithium battery pack has poor effect during slow needle penetration testing and cannot simulate the impact during movement.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a lithium battery pack reliability testing device, including an explosion-proof box, the main body of the explosion-proof box is a box structure with a one-way opening at the front end, and a baffle is installed on the front end opening of the explosion-proof box, the baffle is used to close the front end opening of the explosion-proof box, and a through groove is opened inside the baffle, an explosion-proof window is fixedly connected to the inside of the through groove, the explosion-proof window and the baffle together constitute a closed structure for the front end opening of the explosion-proof box, and a handle is fixedly connected to the front end surface of the baffle, and the main body of the handle is a U-shaped structure with a one-way opening at the rear side.

[0006] Preferably, a puncture assembly is fixedly connected to the left end surface inside the explosion-proof box, the main body of the puncture assembly is a tapered structure that is thick on the left and thin on the right, and the puncture assembly and the explosion-proof box together constitute a test structure, and a guide rail is fixedly connected to the inside of the explosion-proof box, the main body of the guide rail is horizontally arranged, and the guide rail and the explosion-proof box together constitute a guide structure.

[0007] Preferably, a transverse groove is provided inside the guide rail, and an electric push rod is installed inside the transverse groove provided in the guide rail, the electric push rod and the guide rail are arranged in parallel, and an output end is arranged on the right side of the electric push rod, and a magnetic ring is fixedly connected to the inner right end surface of the guide rail, the main body of the magnetic ring is an electromagnetic structure, and the magnetic ring and the guide rail together constitute a limiting structure.

[0008] Preferably, a spring member is fixedly connected inside the guide rail, the main body of the spring member is a telescopic spring structure, and the diameter of the spring member is smaller than the diameter of the magnetic ring. A movable seat is installed inside the transverse groove opened in the guide rail, and a slider is fixedly connected to the outside of the movable seat.

[0009] Preferably, the sliders are provided at two locations, and the two sliders are respectively fixedly connected to the front and rear side positions of the moving seat, the moving seat is slidably connected to the transverse groove opened in the guide rail through the sliders fixedly connected to the outer side thereof, and a bottom plate is fixedly connected to the top surface of the moving seat, the main body of the bottom plate is a rectangular structure, and the bottom plate and the moving seat are vertically arranged.

[0010] Preferably, the diameter of the bottom plate is greater than the diameter of the movable seat, and a side plate is fixedly connected to the top surface of the bottom plate, the side plate is arranged perpendicular to the bottom plate, and there are two side plates in total.

[0011] Preferably, the two side panels are fixedly connected in a linear array at the front and rear sides of the top surface of the bottom plate, and the bottom plate and the side panels together constitute a support structure for the lithium battery pack, and a screw hole is opened inside the side panel located on the front side, and a limit rod is screwed inside the screw hole. The main body of the limit rod is a screw structure, and a knob is fixedly connected to the front end surface of the limit rod, and the diameter of the knob is larger than the diameter of the limit rod. The limit rod and the knob together constitute a limit clamping structure for the lithium battery pack.

[0012] Beneficial Effects

[0013] The utility model provides a lithium battery pack reliability test device. Compared with the prior art, it has the following beneficial effects:

[0014] The lithium battery pack reliability testing device is fixedly connected to the inside of the explosion-proof box with a guide rail, so that when the lithium battery pack is assembled to the inner side of the bottom plate and the side plate, the lithium battery pack can be impacted toward one side of the puncture assembly fixedly connected to the explosion-proof box by sliding the movable seat along the guide rail to perform reliability testing, thereby achieving a more practical purpose.

[0015] The lithium battery pack reliability testing device is provided with a bottom plate and a side plate, so that when the lithium battery pack is placed on the bottom plate, the knob can be held and the limit rod can be rotated, and the limit rod can penetrate into the inside of the side plate to quickly clamp and limit the lithium battery pack placed on the bottom plate, thereby achieving a more practical purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the left side structure of the disassembled testing device of the utility model;

[0017] Figure 2 It is a schematic diagram of the combined structure of the test device of the utility model;

[0018] Figure 3 It is a front structural schematic diagram of the test device of the utility model;

[0019] Figure 4 This is a schematic diagram of the combined structure of the limit rod and the knob of the test device of the utility model;

[0020] Figure 5 It is a schematic diagram of the top view of the structure of the testing device of the utility model;

[0021] Figure 6 It is a schematic diagram of the left-side structure of the test device of the utility model after cutting.

[0022] In the figure: 1. explosion-proof box; 101. baffle; 102. explosion-proof window; 103. handle; 2. puncture assembly; 201. guide rail; 202. electric push rod; 203. magnetic ring; 204. spring member; 3. moving seat; 301. slider; 302. bottom plate; 303. side plate; 304. limit rod; 305. knob. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 6 The utility model provides a technical solution: a lithium battery pack reliability test device, comprising an explosion-proof box 1, the main body of the explosion-proof box 1 is a box structure with a one-way opening at the front end, and a baffle 101 is installed on the front end opening of the explosion-proof box 1, the baffle 101 is used to close the front end opening of the explosion-proof box 1, and a through groove is opened inside the baffle 101, and an explosion-proof window 102 is fixedly connected inside the through groove, and the explosion-proof window 102 and the baffle 101 together constitute a closed structure for the front end opening of the explosion-proof box 1, and a handle 103 is fixedly connected to the front end surface of the baffle 101, and the main body of the handle 103 is a U-shaped structure with a one-way opening at the rear side;

[0025] By providing the explosion-proof box 1, the interior of the explosion-proof box 1 can be sealed by providing a corresponding concrete layer to prevent the battery from exploding and causing leakage.

[0026] See also Figure 1 A puncture assembly 2 is fixedly connected to the left end surface of the interior of the explosion-proof box 1, and the main body of the puncture assembly 2 is a tapered structure that is thick on the left and thin on the right, and the puncture assembly 2 and the explosion-proof box 1 together form a test structure, and a guide rail 201 is fixedly connected to the interior of the explosion-proof box 1, and the main body of the guide rail 201 is horizontally arranged, and the guide rail 201 and the explosion-proof box 1 together form a guide structure;

[0027] By fixing the puncture assembly 2 on the left end surface of the explosion-proof box 1, the lithium battery pack can be subjected to a simulated impact test through the puncture assembly 2 during the testing operation.

[0028] See also Figure 1 , Figure 2 A transverse groove is provided inside the guide rail 201, and an electric push rod 202 is installed inside the transverse groove provided in the guide rail 201, the electric push rod 202 is arranged in parallel with the guide rail 201, and an output end is arranged on the right side of the electric push rod 202, and a magnetic ring 203 is fixedly connected to the right end surface inside the guide rail 201, the main body of the magnetic ring 203 is an electromagnetic structure, and the magnetic ring 203 and the guide rail 201 together form a limit structure;

[0029] By installing an electric push rod 202 inside the guide rail 201, it is possible to quickly push and reset the moving seat 3, thereby achieving a more practical purpose.

[0030] See also Figure 1 , Figure 4 A spring member 204 is fixedly connected to the inside of the guide rail 201. The main body of the spring member 204 is a telescopic spring structure, and the diameter of the spring member 204 is smaller than the diameter of the magnetic ring 203. A moving seat 3 is installed inside the transverse groove opened in the guide rail 201, and a slider 301 is fixedly connected to the outside of the moving seat 3.

[0031] Since two sliders 301 are fixedly connected to the outer side of the moving base 3 , when the moving base 3 moves, the two sliders 301 fixedly connected to the outer side thereof can slide along the guide rail 201 .

[0032] See also Figure 1 , Figure 2 There are two sliders 301, and the two sliders 301 are respectively fixedly connected to the front and rear side positions of the moving seat 3. The moving seat 3 is slidably connected to the transverse groove opened in the guide rail 201 through the sliders 301 fixedly connected to the outer side thereof, and a bottom plate 302 is fixedly connected to the top surface of the moving seat 3. The main body of the bottom plate 302 is a rectangular structure, and the bottom plate 302 and the moving seat 3 are vertically arranged;

[0033] By providing a bottom plate 302 on the top surface of the movable seat 3, it can realize the bearing and supporting operation of the lithium battery pack, thereby achieving a more practical purpose.

[0034] See also Figure 1 , Figure 5 The diameter of the bottom plate 302 is larger than the diameter of the movable seat 3, and a side plate 303 is fixedly connected to the top surface of the bottom plate 302, the side plate 303 is vertically arranged with the bottom plate 302, and the side plate 303 is provided at two locations;

[0035] By fixing two side plates 303 in a linear array on the top surface of the bottom plate 302 , the lithium battery pack can be limited by the side plates 303 fixedly connected to the front and rear sides of the bottom plate 302 when placed on the top surface of the bottom plate 302 .

[0036] See also Figure 1 , Figure 3 The two side panels 303 are fixedly connected to the front and rear sides of the top surface of the bottom plate 302 in a linear array. The bottom plate 302 and the side panels 303 together form a support structure for the lithium battery pack, and a screw hole is opened inside the side panel 303 located on the front side. The inside of the screw hole is screwed with a limit rod 304. The main body of the limit rod 304 is a screw rod structure, and a knob 305 is fixedly connected to the front end surface of the limit rod 304. The diameter of the knob 305 is larger than the diameter of the limit rod 304. The limit rod 304 and the knob 305 together form a limit clamping structure for the lithium battery pack;

[0037] By installing a limit rod 304 and a knob 305 inside the side plate 303, auxiliary support and limit for the lithium battery pack can be achieved when it is in use.

[0038] During operation, when the lithium battery pack is subjected to reliability testing, the lithium battery pack can be placed on the bottom plate 302 fixedly connected to the top surface of the movable seat 3, and the limit rod 304 can be rotated by manually holding the knob 305 fixedly connected to the front end surface of the limit rod 304, and the lithium battery pack placed on the bottom plate 302 can be quickly clamped and limited synchronously;

[0039] When conducting a test, the movable seat 3 can be pushed toward one side of the magnetic ring 203 by starting the electric push rod 202 installed in the guide rail 201, and the magnetic ring 203 generates magnetism to achieve adsorption and limiting of the movable seat 3. At this time, the electric push rod 202 is synchronously retracted, and the magnetic ring 203 is synchronously powered off, so that the movable seat 3 can move toward one side of the puncture component 2 under the resetting action of the spring member 204 to achieve the impact test operation.

[0040] In summary, the device is provided with a movable seat 3 that can move along the guide rail 201, so that the battery pack can be tested in a more realistic manner.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A lithium battery pack reliability testing device, comprising an explosion-proof box (1), characterized in that: The main body of the explosion-proof box (1) is a box structure with a one-way opening at the front end, and a baffle (101) is installed on the front end opening of the explosion-proof box (1), the baffle (101) is used to close the front end opening of the explosion-proof box (1), and a through groove is provided inside the baffle (101), and an explosion-proof window (102) is fixedly connected inside the through groove, and the explosion-proof window (102) and the baffle (101) together form a closed structure for the front end opening of the explosion-proof box (1), and a handle (103) is fixedly connected on the front end surface of the baffle (101), and the main body of the handle (103) is a U-shaped structure with a one-way opening at the rear side.

2. A lithium battery pack reliability testing device according to claim 1, characterized in that: A puncture assembly (2) is fixedly connected to the left end surface of the interior of the explosion-proof box (1); the main body of the puncture assembly (2) is a tapered structure that is thick on the left and thin on the right, and the puncture assembly (2) and the explosion-proof box (1) together form a test structure; and a guide rail (201) is fixedly connected to the interior of the explosion-proof box (1); the main body of the guide rail (201) is arranged horizontally, and the guide rail (201) and the explosion-proof box (1) together form a guide structure.

3. A lithium battery pack reliability testing device according to claim 2, characterized in that: The guide rail (201) is provided with a transverse groove inside, and an electric push rod (202) is installed inside the transverse groove provided in the guide rail (201), the electric push rod (202) and the guide rail (201) are arranged in parallel, and an output end is arranged on the right side of the electric push rod (202), and a magnetic ring (203) is fixedly connected to the right end surface inside the guide rail (201), the main body of the magnetic ring (203) is an electromagnetic structure, and the magnetic ring (203) and the guide rail (201) together form a limit structure.

4. A lithium battery pack reliability testing device according to claim 3, characterized in that: A spring member (204) is fixedly connected inside the guide rail (201), the main body of the spring member (204) is a telescopic spring structure, and the diameter of the spring member (204) is smaller than the diameter of the magnetic ring (203). A moving seat (3) is installed inside the transverse groove provided in the guide rail (201), and a sliding block (301) is fixedly connected to the outside of the moving seat (3).

5. A lithium battery pack reliability testing device according to claim 4, characterized in that: The sliders (301) are provided at two locations, and the two sliders (301) are respectively fixedly connected to the front and rear side surfaces of the moving seat (3). The moving seat (3) is slidably connected to the transverse groove provided in the guide rail (201) through the sliders (301) fixedly connected to the outer side thereof, and a bottom plate (302) is fixedly connected to the top surface of the moving seat (3). The main body of the bottom plate (302) is a rectangular structure, and the bottom plate (302) and the moving seat (3) are vertically arranged.

6. A lithium battery pack reliability testing device according to claim 5, characterized in that: The diameter of the bottom plate (302) is greater than the diameter of the movable seat (3), and a side plate (303) is fixedly connected to the top surface of the bottom plate (302), the side plate (303) is arranged perpendicular to the bottom plate (302), and there are two side plates (303) in total.

7. A lithium battery pack reliability testing device according to claim 6, characterized in that: The two side panels (303) are fixedly connected to the front and rear sides of the top surface of the bottom plate (302) in a linear array, and the bottom plate (302) and the side panels (303) together form a support structure for the lithium battery pack, and a screw hole is provided inside the side panel (303) located at the front side, and a limit rod (304) is screwed inside the screw hole, and the main body of the limit rod (304) is a screw rod structure, and a knob (305) is fixedly connected to the front end surface of the limit rod (304), and the diameter of the knob (305) is larger than the diameter of the limit rod (304), and the limit rod (304) and the knob (305) together form a limit clamping structure for the lithium battery pack.

Images