Testing device for lithium ion battery

Abstract

The utility model relates to a lithium ion battery testing device, which comprises a base, a clamping assembly and a detection assembly, the detection assembly comprises a reciprocating motor and a bearing seat, a positive and negative screw rod is rotatably connected between the reciprocating motor and the bearing seat, and threads on two sides of the positive and negative screw rod are respectively meshed with a first sliding block and a second sliding block in a sliding manner; bearing plates are arranged at the bottoms of the first sliding block and the second sliding block; and a positive electrode detector and a negative electrode detector are respectively arranged on the opposite surfaces of the lower ends of the two bearing plates. According to the testing device for the lithium ion battery, the detection assembly arranged above the conveying belt is utilized, under the driving of the reciprocating motor, the positive and negative screw rod can rotate clockwise and anticlockwise, and then the first sliding block and the second sliding block can drive the positive detector and the negative detector to move oppositely and reversely on the positive and negative screw rod respectively; and the distance between the positive electrode detector and the negative electrode detector can be adjusted to adapt to battery products with different sizes, so that the application range of the device is enlarged.

Description

Technical Field

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

[0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work. During the charge and discharge process, Li+ is intercalated and deintercalated between the two electrodes: when charging, Li+ is deintercalated from the positive electrode and intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; when discharging, the opposite is true. This battery has the characteristics of being rechargeable and uses an intercalated lithium compound as an electrode material.

[0003] After the battery is produced, it needs to be tested to determine whether the product is qualified. At present, most of the testing devices on the market have a relatively fixed structure and can only test batteries of a certain model and size. This fixed structure of the testing device limits its scope of application. With the continuous development of the lithium-ion battery market, the models and sizes of batteries are becoming increasingly diversified, and fixed-structure testing devices often cannot adapt to these changes. This means that when users face batteries of different models and sizes, they may need to purchase multiple different testing devices, which increases costs and operational complexity.

[0004] Therefore, in order to solve the above problems, a testing device for lithium-ion batteries is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a testing device for lithium-ion batteries, which has the advantages that the distance between the positive and negative electrode detectors can be adjusted to accommodate batteries of different sizes, thereby solving the problem that the application range of traditional battery testing devices is relatively limited.

[0006] To achieve the above object, the utility model provides the following technical solutions: a lithium-ion battery testing device comprises a base, a clamping assembly and a detection assembly, a conveyor belt is installed at the center of the upper surface of the base along the transverse direction of the base, a plurality of groups of clamping assemblies are installed at equal intervals on the outer surface of the conveyor belt, and the detection assembly is installed above the conveyor belt along the longitudinal direction of the base;

[0007] Among them, the detection component includes a reciprocating motor and a bearing seat, and a forward and reverse screw is rotatably connected between the reciprocating motor and the bearing seat. A first slider and a second slider are respectively meshed and slid on the threads on both sides of the forward and reverse screws. The first slider and the second slider are symmetrically distributed on both sides of the forward and reverse screws. The bottom of the first slider and the second slider are both equipped with a receiving plate, and the positive electrode detector and the negative electrode detector are respectively installed on the opposite surfaces of the lower ends of the two receiving plates.

[0008] Furthermore, a group of the clamping assemblies includes two support plates, which are installed on the outer surface of the conveyor belt track at intervals along the base, and springs are installed on the opposite surfaces of the two support plates, and clamps are installed on the ends of the two springs that are close to each other.

[0009] Furthermore, two fixed plates are installed on the upper surface of the base at intervals along the longitudinal direction of the base and are respectively located on both sides of the conveyor belt, and the reciprocating motor and the bearing seat are respectively installed on the opposite surfaces of the upper ends of the two fixed plates.

[0010] Furthermore, the output shaft of the reciprocating motor is arranged toward the bearing seat, the tail end of the output shaft of the reciprocating motor is connected to one end of the forward and reverse screw rods, and the outer wall of the other end of the forward and reverse screw rods is connected to the inner wall of the inner ring of the bearing inside the bearing seat.

[0011] Furthermore, two limit rods are installed between the opposite surfaces of the upper ends of the two fixing plates and are respectively located on both sides of the forward and reverse screws. The two limit rods both pass through the first slider and the second slider, and the first slider and the second slider are both slidably connected to the two limit rods.

[0012] Furthermore, the output ends of the positive electrode detector and the negative electrode detector are both equipped with conductive plates.

[0013] Furthermore, an indicator light is installed on the outer wall of one of the fixing plates.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The lithium-ion battery testing device utilizes a detection component installed above a conveyor belt. Under the drive of a reciprocating motor, the forward and reverse screws can perform clockwise and counterclockwise bidirectional rotation, and then the first slider and the second slider can respectively drive the positive electrode detector and the negative electrode detector to move in opposite directions and back directions on the forward and reverse screws, so that the spacing between the positive electrode detector and the negative electrode detector can be adjusted to adapt to battery products of different sizes, thereby increasing the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall installation structure of the utility model;

[0017] Figure 2 It is a top view schematic diagram of the overall installation structure of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the connection structure of the detection component of the utility model.

[0019] In the figure: 1. base; 11. fixed plate; 2. conveyor belt; 3. clamping assembly; 31. support plate; 32. spring; 33. clamping plate; 4. detection assembly; 41. reciprocating motor; 42. bearing seat; 43. forward and reverse screws; 44. first slider; 45. second slider; 46. limit rod; 47. receiving plate; 48. positive electrode detector; 49. negative electrode detector; 5. conductive plate; 6. indicator light. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 In this embodiment, a lithium-ion battery testing device is provided, which utilizes a detection assembly 4 installed above a conveyor belt 2. Driven by a reciprocating motor 41, a forward and reverse screw 43 can perform clockwise and counterclockwise bidirectional rotation, and then a first slider 44 and a second slider 45 can respectively drive a positive electrode detector 48 and a negative electrode detector 49 to move in opposite directions and back directions on the forward and reverse screw 43, so that the spacing between the positive electrode detector 48 and the negative electrode detector 49 can be adjusted to adapt to battery products of different sizes, thereby increasing the applicable scope of the device.

[0022] Specifically, a lithium-ion battery testing device in this embodiment includes a base 1, a clamping component 3 and a detection component 4;

[0023] A conveyor belt 2 is installed at the center of the upper surface of the base 1 transversely along the base 1, a plurality of groups of clamping components 3 are installed at equal intervals on the outer surface of the crawler of the conveyor belt 2, and a detection component 4 is installed above the conveyor belt 2 longitudinally along the base 1;

[0024] Among them, the detection component 4 includes a reciprocating motor 41 and a bearing seat 42, and a forward and reverse screw 43 is rotatably connected between the reciprocating motor 41 and the bearing seat 42. The first slider 44 and the second slider 45 are respectively meshed and slid on the threads on both sides of the forward and reverse screw 43. The first slider 44 and the second slider 45 are symmetrically distributed on both sides of the forward and reverse screw 43. The bottom of the first slider 44 and the second slider 45 are both equipped with a receiving plate 47, and the positive electrode detector 48 and the negative electrode detector 49 are respectively installed on the opposite surfaces of the lower ends of the two receiving plates 47.

[0025] During actual use, the user fixes the battery on the conveyor belt 2 through the clamping component 3, and then controls the conveyor belt 2 to run. When the battery moves to the bottom of the detection component 4, the user controls the conveyor belt 2 to pause and controls the reciprocating motor 41 to run; the operation of the reciprocating motor 41 enables the forward and reverse screws 43 to rotate clockwise and counterclockwise, and the rotation of the forward and reverse screws 43 enables the first slider 44 and the second slider 45 to move in opposite directions or back directions on the forward and reverse screws 43. The forward and reverse screws 43 rotate in both directions, and the first slider 44 and the second slider 45 can perform corresponding opposite and back directions on the forward and reverse screws 43. With the cooperation of the receiving plate 47, The positive electrode detector 48 and the negative electrode detector 49 can be close to and away from each other with the movement of the first slider 44 and the second slider 45, respectively, so that the distance between the positive electrode detector 48 and the negative electrode detector 49 can be adjusted to adapt to battery products of different sizes, thereby increasing the application scope of the device; the positive electrode detector 48 and the negative electrode detector 49 are close to each other and the output ends are connected to the positive and negative electrodes of the battery respectively to detect the battery. When the battery detection is completed, the reciprocating motor 41 drives the positive electrode detector 48 and the negative electrode detector 49 to move away from each other, so that the conveyor belt 2 can continue to drive the battery to move forward to facilitate the staff to carry out the next step of processing.

[0026] A set of clamping components 3 includes two support plates 31, which are installed on the outer surface of the track of the conveyor belt 2 at a laterally spaced interval along the base 1. Springs 32 are installed on the opposite surfaces of the two support plates 31, and clamping plates 33 are installed on the ends of the two springs 32 that are close to each other.

[0027] The spring 32 can be used to adjust the distance between the two clamping plates 33 flexibly to increase the size range of the battery that can be clamped. At the same time, under the action of the spring 32 , the placement of the battery between the clamping plates 33 can become stable and convenient, avoiding the problem of the distance between the two clamping plates 33 being fixed, which makes it more complicated to take and place the battery.

[0028] Two fixed plates 11 are installed on the upper surface of the base 1 at intervals along the longitudinal direction of the base 1 and are respectively located on both sides of the conveyor belt 2 . The reciprocating motor 41 and the bearing seat 42 are respectively installed on the opposite surfaces of the upper ends of the two fixed plates 11 .

[0029] The output shaft of the reciprocating motor 41 is arranged toward the bearing seat 42 , and the tail end of the output shaft of the reciprocating motor 41 is connected to one end of the forward and reverse screw 43 , and the outer wall of the other end of the forward and reverse screw 43 is connected to the inner wall of the inner ring of the bearing inside the bearing seat 42 .

[0030] When the reciprocating motor 41 is running, its output shaft can rotate clockwise and counterclockwise. With the cooperation of the bearing inside the bearing seat 42, the forward and reverse screws 43 can be driven to rotate clockwise and counterclockwise between the reciprocating motor 41 and the bearing seat 42.

[0031] Two limit rods 46 are installed between the opposite surfaces of the upper ends of the two fixing plates 11 and are respectively located on both sides of the forward and reverse screw rods 43. The two limit rods 46 both penetrate the first slider 44 and the second slider 45. The first slider 44 and the second slider 45 are both slidably connected to the two limit rods 46.

[0032] Under the restriction of the limit rod 46, when the forward and reverse screws 43 rotate, the first slider 44 and the second slider 45 can make linear motion on the forward and reverse screws 43 to increase the stability of the positive electrode detector 48 and the negative electrode detector 49 during movement.

[0033] The output ends of the positive electrode detector 48 and the negative electrode detector 49 are both equipped with conductive plates 5 for increasing the contact area of ​​the detector for detecting the battery so as to adapt to batteries of different sizes.

[0034] An indicator light 6 is installed on the outer wall of a fixed plate 11 to indicate unqualified products tested by the positive electrode detector 48 and the negative electrode detector 49.

[0035] The working principle of the above embodiment is:

[0036] In the first step, the user places the battery between the two clamping plates 33 and then controls the conveyor belt 2 to run. When the battery moves to below the detection component 4, the user controls the conveyor belt 2 to pause and controls the reciprocating motor 41 to run.

[0037] In the second step, the reciprocating motor 41 drives the forward and reverse screws 43 to rotate, so that the positive electrode detector 48 and the negative electrode detector 49 can be close to each other with the movement of the first slider 44 and the second slider 45 respectively. The positive electrode detector 48 and the negative electrode detector 49 are close to each other and the output ends are connected to the positive and negative electrodes of the battery respectively to detect the battery. When the battery detection is completed, the reciprocating motor 41 drives the forward and reverse screws 43 to rotate in the opposite direction, and the positive electrode detector 48 and the negative electrode detector 49 are separated from each other, so that the conveyor belt 2 can continue to drive the battery to move forward to facilitate the staff to carry out the next step of processing; by controlling the operation of the reciprocating motor 41, the forward and reverse screws 43 can be driven to rotate clockwise and counterclockwise, and the distance between the positive electrode detector 48 and the negative electrode detector 49 can be adjusted to adapt to battery products of different sizes, thereby increasing the scope of application of the device.

[0038] 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. A lithium-ion battery testing device, comprising a base (1), a clamping assembly (3) and a detection assembly (4), characterized in that: A conveyor belt (2) is installed at the center of the upper surface of the base (1) along the transverse direction of the base (1); a plurality of groups of clamping components (3) are installed at equal intervals on the outer surface of the crawler of the conveyor belt (2); and the detection component (4) is installed above the conveyor belt (2) along the longitudinal direction of the base (1); The detection assembly (4) comprises a reciprocating motor (41) and a bearing seat (42), a forward and reverse screw (43) is rotatably connected between the reciprocating motor (41) and the bearing seat (42), a first slider (44) and a second slider (45) are respectively meshed and slid on the threads on both sides of the forward and reverse screw (43), the first slider (44) and the second slider (45) are symmetrically distributed on both sides of the forward and reverse screw (43), a receiving plate (47) is installed at the bottom of the first slider (44) and the second slider (45), and a positive electrode detector (48) and a negative electrode detector (49) are respectively installed on the opposite surfaces of the lower ends of the two receiving plates (47).

2. A lithium-ion battery testing device according to claim 1, characterized in that: A group of the clamping components (3) comprises two support plates (31), the two support plates (31) are installed on the outer surface of the crawler of the conveyor belt (2) at intervals along the transverse direction of the base (1), springs (32) are installed on the opposite surfaces of the two support plates (31), and clamping plates (33) are installed on the ends of the two springs (32) close to each other.

3. A lithium-ion battery testing device according to claim 1, characterized in that: The upper surface of the base (1) is provided with two fixed plates (11) spaced apart in the longitudinal direction of the base (1) and respectively located on both sides of the conveyor belt (2); the reciprocating motor (41) and the bearing seat (42) are respectively mounted on opposite surfaces of the upper ends of the two fixed plates (11).

4. A lithium-ion battery testing device according to claim 1, characterized in that: The output shaft of the reciprocating motor (41) is arranged toward the bearing seat (42), the tail end of the output shaft of the reciprocating motor (41) is connected to one end of the forward and reverse screw rods (43), and the outer wall of the other end of the forward and reverse screw rods (43) is connected to the inner wall of the inner ring of the bearing inside the bearing seat (42).

5. A lithium-ion battery testing device according to claim 3, characterized in that: Two limiting rods (46) are installed between the upper opposite surfaces of the two fixing plates (11) and are respectively located on both sides of the forward and reverse screw rods (43). The two limiting rods (46) both penetrate the first slider (44) and the second slider (45). The first slider (44) and the second slider (45) are both slidably connected to the two limiting rods (46).

6. A lithium-ion battery testing device according to claim 1, characterized in that: The output ends of the positive electrode detector (48) and the negative electrode detector (49) are both equipped with conductive plates (5).

7. A lithium-ion battery testing device according to claim 3, characterized in that: An indicator light (6) is mounted on the outer wall of one of the fixing plates (11).

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