Loading mechanism of battery internal resistance tester

Abstract

A loading mechanism of a battery internal resistance tester comprises two sets of limiting seats fixed to a rotating platform, a loading frame arranged between the two sets of limiting seats in a matched mode and a limiting block used for fixing the loading frame, the loading frame comprises two oppositely-installed connecting plates, and a plurality of connecting rods are fixedly connected between the two connecting plates; a plurality of sets of clamping plates are arranged on a connecting rod, a containing cavity used for containing a battery is formed between every two adjacent clamping plates, the multiple clamping plates can form a plurality of containing cavities so that a plurality of batteries can be placed at a time, and meanwhile the connecting rod between every two adjacent clamping plates is connected with a reset spring in a sleeved mode. The drivers at the two ends drive the clamping plates at the outermost ends to get close inwards and sequentially transmit clamping force through the reset springs so that the multiple clamping plates can conduct clamping at the same time, the structure can clamp the multiple batteries at the same time so that the multiple batteries can be detected at the same time, the detection efficiency can be improved, and the production progress can be accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection, and particularly relates to a loading mechanism of a battery internal resistance tester. Background Art

[0002] Battery detection equipment is a tool specifically used for detecting the performance of batteries, aiming to quickly and accurately evaluate various parameters of the batteries, so as to help users better maintain and manage the batteries.

[0003] Among the existing battery detection equipment, a high-voltage lithium battery detection tooling disclosed in a Chinese utility model patent with the reference patent application number CN202221489149.7 includes a detection table. A mounting groove for assembling a high-voltage lithium battery is formed in the middle of the detection table. A guiding sliding groove is formed on the upper surface of the detection table, and the guiding sliding groove is located outside the mounting groove. The mounting groove is square, and two probe mounting brackets are slidably connected in the mounting groove. The probe mounting brackets are used for fixing the detection probes of the lithium battery detection equipment; the probe mounting brackets include sliding blocks located in the guiding sliding grooves, and a first support pillar is fixed at the top of the sliding blocks. This structure can fix the probes of the high-voltage lithium battery detection equipment and can drive the probes to adjust the height, angle and telescopic length, so that the probes can contact the electrode tabs of the high-voltage lithium battery. During detection, there is no need to hold the probes by hand or fix the probes and the electrode tabs, and the efficiency is higher.

[0004] However, in the above structure, clamping plates are slidably connected to both sides of the mounting groove. The clamping plates are driven by a driving motor and a screw rod to tighten each other to clamp the battery. This structure can only clamp one battery at a time. Therefore, only one battery can be detected in a single detection. This not only has low detection efficiency and cannot keep up with the production progress, but also requires continuous repetition of the actions of taking out and putting in the battery, increasing the complexity of the detection. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a loading mechanism of a battery internal resistance tester.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A loading mechanism for a battery internal resistance tester, comprising two groups of limit seats fixed on a rotating platform, a loading rack fitted between the two groups of limit seats, and a limit block for fixing the loading rack. The loading rack includes two oppositely installed connecting plates, and a plurality of connecting rods are fixedly connected between the two connecting plates. A plurality of clamping plates are movably installed on the plurality of connecting rods, and a return spring is sleeved on the connecting rod between adjacent two clamping plates. The two ends of the return spring abut against adjacent two clamping plates, and a placement cavity for placing a battery is formed between adjacent two clamping plates. It further includes a driver arranged outside the two connecting plates. The driving end of the driver passes through the connecting plate and is connected to the clamping plate. The two drivers simultaneously drive the clamping plates at both ends of the connecting rod to move closer inward, and the clamping force is transmitted by the return spring between the clamping plates at both ends to clamp multiple groups of clamping plates simultaneously.

[0008] Further, four connecting rods are provided between the two connecting plates. The four connecting rods are respectively arranged at the four corners of the connecting plates and correspondingly pass through the four corner positions of the clamping plates.

[0009] In the present utility model, the driving end of the driver is connected with a driving block, and the connecting plate is provided with a through hole for the driving block to pass through. The driver drives the clamping plate to act through the driving block.

[0010] Further, a push plate is further provided between the clamping plate at the outermost end of the connecting rod and the connecting plate. The push plate is movably installed on the connecting rod, and the driving block is fixedly connected to the push plate.

[0011] Further, an adjusting plate for adjusting the relative distance between the clamping plates is further provided between the push plate and the connecting plate. The adjusting plate is erected on the connecting rod.

[0012] In the present utility model, the bottom end of the clamping plate horizontally extends to both sides to form a baffle, and the baffles between adjacent two clamping plates form the bottom edge of the placement cavity.

[0013] In the present utility model, the middle part of the limit block is erected on the limit seat, the end of the limit block away from the connecting plate is on the rotating platform, the end of the limit block close to the connecting plate extends vertically up and down to form a limit head, the upper and lower ends of the connecting plate are bent towards the direction of the limit head to form a wrapping edge, and a limit opening for clamping the wrapping edge is formed at the connection between the limit block and the limit seat. The loading rack slides into the limit opening from the outer end of the limit seat.

[0014] The present utility model has the following advantages and beneficial effects:

[0015] A plurality of sets of clamping plates are arranged on the connecting rod in the loading rack, and a placement cavity for placing batteries is formed between adjacent two clamping plates. Multiple clamping plates can form a plurality of placement cavities so that multiple batteries can be placed at one time. At the same time, a return spring is sleeved on the connecting rod between adjacent two clamping plates. The drivers at both ends drive the outermost clamping plates to move closer inward, and the clamping force is sequentially transmitted through the return spring so that multiple clamping plates can be clamped simultaneously. This structure can clamp multiple batteries simultaneously, thereby detecting multiple batteries at the same time, improving the detection efficiency and accelerating the production progress. Brief Description of the Drawings

[0016] The present invention will be further described below in conjunction with the drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the internal resistance detector in this embodiment;

[0018] Figure 2 It is an installation schematic diagram of the loading mechanism in this embodiment;

[0019] Figure 3 is Figure 2 an enlarged view of area A in

[0020] Figure 4 is Figure 2 an enlarged view of area B in Specific Embodiment

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The present invention is not limited to the following embodiments.

[0022] As Figures 1 to 4As shown in the figure, this embodiment discloses a loading mechanism for a battery internal resistance tester, which includes a frame 1. A rotating platform 10 is rotatably installed at the central position of the frame 1. The rotating platform 10 is driven by a motor installed on the frame 1 to rotate around the central axis. The frame 1 is sequentially installed with a feeding mechanism 2, a scanning mechanism 3, an internal resistance testing mechanism 4, and a discharging mechanism 5 in a clockwise or counterclockwise direction around the four directions of the rotating platform 10. Four groups of loading mechanisms 11 for loading batteries are installed on the rotating platform 10 corresponding to the four directions. The loading mechanism 11 includes two limiting seats 100 fixed on the rotating platform, a loading frame fitted between the two limiting seats 100, and a limiting block 101 for fixing the loading frame on the two limiting seats 100. The loading frame includes two connecting plates 111 installed in parallel and opposite to each other. The two connecting plates 111 are connected to the limiting seats 100. Four connecting rods 112 are fixedly connected between the two connecting plates 111. A plurality of clamping plates 113 are movably installed on the four connecting rods 112. A return spring 114 is sleeved on the connecting rod 112 between adjacent two clamping plates 113. The two ends of the return spring 114 abut against the adjacent two clamping plates 113. Preferably, the four connecting rods 112 are respectively arranged at the four corners of the connecting plate 111 and correspondingly pass through the four corners of the clamping plate 113. A placement cavity 115 for placing the battery is formed between adjacent two clamping plates 113. Multiple clamping plates 113 form a plurality of placement cavities 115 to place multiple batteries simultaneously. The loading mechanism 11 further includes a driver 12 arranged outside the two connecting plates 111. The driving end of the driver 12 passes through the connecting plate 111 and is connected to the clamping plate 113. The two drivers 12 simultaneously drive the clamping plates 113 at both ends of the connecting rod 112 to approach each other. The clamping plates 113 at both ends transmit the clamping force to the middle along the direction of the connecting rod 112 through the return spring 114 in sequence, so as to realize simultaneous clamping of multiple clamping plates 113.

[0023] In this embodiment, a driving block 13 is provided at the driving end of the driver 12. A through hole 14 for the driving block 13 to pass through is provided in the middle of the connecting plate 111. The driver 12 drives the clamping plate 113 to act through the driving block 13. Preferably, the driver 12 is a multi-fixed cylinder.

[0024] Furthermore, a push plate 116 with higher strength is further provided between the clamping plate 113 at the outermost end of the connecting rod 112 and the connecting plate 111. The push plate 116 is movably installed on the connecting rod 112. The driving block 13 is fixedly connected to the push plate 116.

[0025] Furthermore, an adjusting plate 117 for adjusting the relative distance between the clamping plates 113 is further provided between the pushing plate 116 and the connecting plate 111. The adjusting plate 117 is mounted on the connecting rod 112. By placing adjusting plates 117 with different thicknesses between the pushing plate 116 and the connecting plate 111, the relative distance between two adjacent clamping plates 113 is changed, so as to form placing cavities 115 with different thicknesses, so as to be applicable to batteries of different specifications.

[0026] In this embodiment, the bottom ends of the clamping plates 113 horizontally extend towards both sides to form baffles 118. The baffles 118 between two adjacent clamping plates 113 form the bottom edge of the placing cavity 115 for holding the battery to prevent the battery from falling.

[0027] In this embodiment, the middle part of the limiting block 101 is mounted on the limiting seat 100. One end of the limiting block 101 away from the connecting plate 111 is fixed on the rotating platform 10 by screws. One end of the limiting block 101 close to the connecting plate 111 extends vertically upwards and downwards to form a limiting head 102. The upper and lower ends of the connecting plate 111 are bent towards the direction of the limiting head 102 to form a wrapping edge 103. Specifically, a limiting opening 104 for clamping the wrapping edge 103 is formed at the connection between the limiting block 101 and the limiting seat 100 through the vertically extending limiting head 102. The loading rack slides into the limiting opening 104 from the outer end of the limiting seat 100 along the radial direction of the rotating platform 10 to complete the fixation.

[0028] The above content described in this specification is only an example of the present invention. Those skilled in the technical field to which the present invention belongs can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the content of this specification of the present invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. A loading mechanism for a battery internal resistance tester, characterized in that: It includes two groups of limit seats (100) fixed on a rotating platform (10), a loading rack fitted between the two groups of limit seats (100), and a limit block (101) for fixing the loading rack. The loading rack includes two oppositely installed connecting plates (111), and a plurality of connecting rods (112) are fixedly connected between the two connecting plates (111). A plurality of clamping plates (113) are movably installed on the plurality of connecting rods (112). A return spring (114) is sleeved on the connecting rod (112) between adjacent two clamping plates (113). Both ends of the return spring (114) abut against the adjacent two clamping plates (113), and a placement cavity (115) for placing a battery is formed between the adjacent two clamping plates (113). It further includes a driver (12) arranged outside the two connecting plates (111). The driving end of the driver (12) passes through the connecting plate (111) and is connected to the clamping plate (113). The two drivers (12) simultaneously drive the clamping plates (113) at both ends of the connecting rod (112) to move closer inward. The clamping plates (113) at both ends transmit the clamping force through the return spring (114) to make the plurality of clamping plates (113) clamp simultaneously.

2. The loading mechanism of a battery internal resistance tester according to claim 1, characterized in that: Four connecting rods (112) are provided between the two connecting plates (111). The four connecting rods (112) are respectively arranged at the four corners of the connecting plate (111) and correspondingly pass through the four corner positions of the clamping plate (113).

3. The loading mechanism of a battery internal resistance tester according to claim 1, characterized in that: The driving end of the driver (12) is connected with a driving block (13). A through hole (14) for the driving block (13) to pass through is provided on the connecting plate (111). The driver (12) drives the clamping plate (113) to act through the driving block (13).

4. The loading mechanism of a battery internal resistance tester according to claim 3, characterized in that: A push plate (116) is further provided between the clamping plate (113) at the outermost end of the connecting rod (112) and the connecting plate (111). The push plate (116) is movably installed on the connecting rod (112), and the driving block (13) is fixedly connected to the push plate (116).

5. The loading mechanism of a battery internal resistance tester according to claim 4, characterized in that: An adjusting plate (117) for adjusting the relative distance between the clamping plates (113) is further provided between the push plate (116) and the connecting plate (111). The adjusting plate (117) is erected on the connecting rod (112).

6. The loading mechanism of a battery internal resistance tester according to claim 1, characterized in that: The bottom end of the clamping plate (113) horizontally extends to both sides to form a baffle (118). The baffles (118) between adjacent two clamping plates (113) form the bottom edge of the placement cavity (115).

7. The loading mechanism of a battery internal resistance tester according to claim 1, characterized in that: The middle part of the limit block (101) is erected on the limit seat (100). One end of the limit block (101) far from the connecting plate (111) is on the rotating platform (10). A limit head (102) extends vertically and downward at one end of the limit block (101) close to the connecting plate (111). The upper and lower ends of the connecting plate (111) are bent towards the direction of the limit head (102) to form a wrap-around edge (103). A limit opening (104) for clamping the wrap-around edge (103) is formed at the connection part of the limit block (101) and the limit seat (100). The loading rack slides into the limit opening (104) from the outer end of the limit seat (100).

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