High current soft pack battery test bed

Abstract

The present invention discloses a sub-capacity mounting chassis, the top side of which is fixedly connected with a plurality of supporting guide columns; a current clamp mounting plate, the current clamp mounting plate is slidably connected with the supporting guide columns, the front side of the current clamp mounting plate is fixedly connected with a current clamp mounting seat; an insulating clamp assembly, the insulating clamp assembly is slidably connected with the supporting guide columns, the insulating clamp assembly is provided with a plurality of insulating current clamp seats, the insulating current clamp seats are provided with metal pole pieces, the rear side of the insulating clamp assembly is fixedly connected with a second roller spindle, the second roller spindle is rollably provided with a second roller bearing follower; a cam mounting plate, the cam mounting plate is slidably provided on the sub-capacity mounting chassis, the sub-capacity mounting chassis is provided with a clamping drive cylinder. The present invention can prevent the pole ear from being damaged during the detection process, and can also reduce production costs and maintenance costs, and improve test efficiency and accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of battery testing. Background Art

[0002] The soft-pack battery clamp in the prior art is prone to damage the battery tab when clamping it. At the same time, when testing a high-current soft-pack battery, the contact area between the battery tab to be tested and the current clamp is small, and the impedance is large, which can easily cause the clamp and the battery to overheat, causing certain dangers. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a high-current soft-pack battery test needle bed, which can avoid damage to the pole ear during the detection process. In addition, it can increase the contact area between the battery pole ear to be tested and the current clamp, reduce the impedance between the battery pole ear and the current clamp, and avoid excessive heating of the fixture and the battery.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] High current soft pack battery test bed, including:

[0006] A sub-capacity installation chassis, wherein a plurality of supporting guide columns are fixedly connected to the top side of the sub-capacity installation chassis;

[0007] A current clamp mounting plate, wherein the current clamp mounting plate is slidably connected to the support guide column, a current clamp mounting seat is fixedly connected to the front side of the current clamp mounting plate, the current clamp mounting seat is provided with a current probe, and a first roller spindle is fixedly connected to the rear side of the current clamp mounting plate, and the first roller spindle is rollably provided with a first roller bearing follower;

[0008] An insulating clamp assembly, wherein the insulating clamp assembly is slidably connected to the supporting guide column, the insulating clamp assembly is provided with a plurality of insulating current clamp seats, the insulating current clamp seats are provided with metal pole pieces, a second roller spindle is fixedly connected to the rear side of the insulating clamp assembly, and the second roller spindle is rollably provided with a second roller bearing follower;

[0009] A cam mounting plate, wherein the cam mounting plate is slidably disposed on the sub-capacity mounting base, the sub-capacity mounting base is provided with a clamping drive cylinder, the piston rod of the clamping drive cylinder is fixedly connected to the cam mounting plate, the cam mounting plate is provided with a first cam groove and a second cam groove, the first roller bearing follower is slidably disposed on the first cam groove, and the second roller bearing follower is slidably disposed on the second cam groove.

[0010] Specifically, the insulating clamp assembly includes two insulating clamp mounting plates, and the rear sides of the two insulating clamp mounting plates are fixedly connected to a plurality of linear bearings, and the linear bearings can be slidably mounted on the supporting guide columns. A plurality of insulating clamp mounting rods are connected between the two insulating clamp mounting plates, and the insulating clamp mounting rods are fixedly connected to a plurality of the insulating current clamp seats.

[0011] Specifically, there are multiple insulating current clamp seats, the insulating clamp mounting rod is vertically arranged, and each insulating current clamp seat is arranged along the insulating clamp mounting rod. The top side of each insulating current clamp seat is fixedly connected with the metal pole piece, and the metal pole piece is a copper pole piece.

[0012] Specifically, the first cam groove is located on the upper side of the second cam groove, the first cam groove and the second cam groove are relatively close to each other on one side of the cam mounting plate, and the first cam groove and the second cam groove are relatively separated from each other on the other side of the cam mounting plate, thereby forming an "eight" shape along the horizontal direction.

[0013] Specifically, the current clamp mounting plate and the current clamp mounting plate are both provided with two roller vertical plates, a roller horizontal plate is fixedly connected between the two roller vertical plates, and roller limiting blocks are fixedly connected to the sides of the roller vertical plates.

[0014] Specifically, the sub-capacity mounting frame is fixedly connected to a cylinder mounting base plate, the cylinder mounting base plate is fixedly connected to a cylinder mounting vertical plate, the clamping drive cylinder is fixedly connected to the cylinder mounting vertical plate, and cylinder reinforcement ribs are fixedly connected to the edges of the cylinder mounting base plate and the cylinder mounting vertical plate.

[0015] Specifically, the sub-capacity mounting base is provided with a first linear guide rail, which is arranged horizontally, and the first linear guide rail is slidably connected to a first slider, and the first slider is fixedly connected to a cam mounting cross plate, and the cam mounting vertical plate is fixedly connected to the cam mounting cross plate, and the edges of the cam mounting vertical plate and the cam mounting cross plate are fixedly connected to a cam reinforcement plate, one of the cam reinforcement plates is fixedly connected to a cylinder connecting block, and the cylinder connecting block is provided with a connecting groove, and the piston rod of the clamping drive cylinder is fixedly connected to a movable joint, and the end of the movable joint is provided with an outer edge, and the movable joint is cooperatively connected with the cylinder connecting block.

[0016] Specifically, the capacity-dividing mounting chassis is fixedly connected to a plurality of supporting columns, the supporting columns are fixedly connected to a wiring mounting plate, the wiring mounting plate is provided with quick-connect terminals, a speed regulating valve, and a solenoid valve, the supporting columns are fixedly connected to a supporting plate, and the supporting plate is fixedly connected to a cooling fan.

[0017] Specifically, the sub-capacity mounting base is fixedly connected to a second linear guide rail, the second linear guide rail is arranged along the longitudinal direction, the second linear guide rail is slidably connected to a second slider, the second slider is fixedly connected to a sliding plate, two lateral sides of the sliding plate are fixedly connected to two positioning plate uprights, the top of the positioning plate uprights is fixedly connected to a module support plate, the bottom wall of the sliding plate is fixedly connected to a sliding plate driving cylinder, and the piston rod end of the sliding plate driving cylinder is fixedly connected to the sub-capacity mounting base.

[0018] Specifically, the top wall edge and both longitudinal ends of the module support plate are fixedly connected with guide blocks, and the lower sides of both longitudinal ends of the module support plate are fixedly connected with travel switches.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the initial state, the clamping drive cylinder drives the piston rod to retract, thereby driving the cam mounting plate to move in the direction of piston rod retraction. Since the first cam groove and the second cam groove are arranged in a horizontal "eight" shape, and the first roller bearing follower is slidably arranged in the first cam groove, and the second roller bearing follower is slidably arranged in the second cam groove. When the cam mounting plate moves in the direction of piston rod retraction, the first cam groove and the second cam groove drive the first roller bearing follower and the second roller bearing follower to move toward each other at a uniform speed, thereby driving the current clamp mounting plate and the insulating clamp assembly to move toward each other at a uniform speed, thereby driving the insulating current clamp seat and the current clamp mounting seat to move toward each other at a uniform speed, so that the pole ear is subjected to the same clamping force by the insulating current clamp seat and the current clamp mounting seat, thereby avoiding the pole ear from being damaged during the detection process. In addition, the present invention can increase the contact area between the bottom of the pole ear and the metal pole piece on the insulating current clamp seat, reduce the impedance between the battery pole ear and the insulating current clamp seat, reduce production costs and maintenance costs, and improve test efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A front perspective view of the bed of nails used for testing high current pouch cells;

[0022] Figure 2 A back perspective view of the bed of nails used for testing high current pouch cells;

[0023] Figure 3 A partial view of the back of the bed of nails used for testing high-current soft-pack batteries;

[0024] Figure 4 A partial view of the back of the bed of nails used for testing high-current soft-pack batteries;

[0025] Figure 5 It is a front view of the combined state of the current clamp mounting plate and the current clamp mounting seat;

[0026] Figure 6is a front view of the insulation clip assembly;

[0027] Figure 7 This is a combined state view of the sliding panel and related components.

[0028] In the figure: 11, capacity-dividing mounting chassis; 12, supporting guide column; 13, first linear guide; 14, supporting column; 141, wiring mounting plate; 142, cooling fan; 15, second linear guide; 21, current clamp mounting plate; 22, current clamp mounting seat; 23, current probe; 24, first roller spindle; 25, first roller bearing follower; 3, insulating clamp assembly; 31, insulating current clamp seat; 32, metal pole piece; 33, second roller spindle; 34, second roller bearing follower; 35, insulating clamp mounting plate; 36, insulating clamp mounting rod; 41. Cam mounting vertical plate; 411. First cam groove; 412. Second cam groove; 42. Clamping drive cylinder; 421. Movable joint; 43. Cylinder mounting base plate; 44. Cylinder mounting vertical plate; 45. Cylinder reinforcement rib; 46. Cam mounting cross plate; 47. Cam reinforcement plate; 48. Cylinder connecting block; 5. Linear bearing; 61. Roller vertical plate; 62. Roller cross plate; 63. Roller limit block; 71. Sliding plate; 72. Positioning plate vertical plate; 73. Module support plate; 731. Guide block; 732. Travel switch; 74. Sliding plate drive cylinder. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0030] See Figures 1 to 3 and Figure 6 The high-current soft-pack battery test needle bed includes: a capacity-dividing mounting base 11, a current clamp mounting plate 21, an insulating clamp assembly 3, and a cam mounting vertical plate 41.

[0031] See Figure 2 , Figure 3 A plurality of supporting guide columns 12 are fixedly connected to the top side of the sub-capacity mounting base 11 .

[0032] See Figure 3 , Figure 5 The current clamp mounting plate 21 is slidably connected to the support guide column 12. A current clamp mounting seat 22 is fixedly connected to the front side of the current clamp mounting plate 21, and the current clamp mounting seat 22 is provided with a current probe 23. Figure 3 , Figure 4 The rear side of the current clamp mounting plate 21 is fixedly connected with a first roller spindle 24. The first roller spindle 24 is rollably provided with a first roller bearing follower 25.

[0033] See Figure 1 , Figure 4 , Figure 6 The insulating clamp assembly 3 is slidably connected to the supporting guide column 12, and the insulating clamp assembly 3 is provided with a plurality of insulating current clamp seats 31. The insulating current clamp seats 31 are provided with metal pole pieces 32. The rear side of the insulating clamp assembly 3 is fixedly connected with a second roller spindle 33 (see Figure 6 ), the second roller spindle 33 is rotatably provided with a second roller bearing follower 34.

[0034] See Figure 3 , Figure 4 The cam mounting plate 41 is slidably disposed on the sub-capacity mounting base 11. The sub-capacity mounting base 11 is provided with a clamping drive cylinder 42, and the piston rod of the clamping drive cylinder 42 is fixedly connected to the cam mounting plate 41. The cam mounting plate 41 is provided with a first cam groove 411 and a second cam groove 412, the first roller bearing follower 25 is slidably disposed in the first cam groove 411, and the second roller bearing follower 34 is slidably disposed in the second cam groove 412.

[0035] Specifically, see Figure 1 , Figure 6 The insulating clamp assembly 3 includes two insulating clamp mounting plates 35, and the rear sides of the two insulating clamp mounting plates 35 are fixedly connected with a plurality of linear bearings 5, and the linear bearings 5 ​​are slidably sleeved on the supporting guide column 12. A plurality of insulating clamp mounting rods 36 are connected between the two insulating clamp mounting plates 35, and the insulating clamp mounting rods 36 are fixedly connected with a plurality of insulating current clamp seats 31.

[0036] Specifically, see Figure 6 There are multiple insulating current clamp seats 31, and the insulating clamp mounting rod 36 is vertically arranged. Each insulating current clamp seat 31 is arranged along the insulating clamp mounting rod 36. A metal pole piece 32 is fixedly connected to the top side of each insulating current clamp seat 31, and the metal pole piece 32 is a copper pole piece.

[0037] Specifically, see Figure 3 The first cam groove 411 is located on the upper side of the second cam groove 412, the first cam groove 411 and the second cam groove 412 are relatively close to each other on one side of the cam mounting plate 41, and the first cam groove 411 and the second cam groove 412 are relatively separated from each other on the other side of the cam mounting plate 41, thereby forming an "eight" shape along the horizontal direction.

[0038] Specifically, see Figure 4 The current clamp mounting plate 21 and the current clamp mounting plate 21 are both provided with two roller vertical plates 61, a roller horizontal plate 62 is fixedly connected between the two roller vertical plates 61, and roller limit blocks 63 are fixedly connected to the sides of the roller vertical plates 61. The roller limit blocks 63 are connected with adjustment screws (not shown in the figure), and the horizontal height position of the roller horizontal plate 62 can be adjusted by turning the adjustment screws.

[0039] Specifically, see Figure 3 The capacity-dividing mounting frame 11 is fixedly connected with a cylinder mounting base plate 43, the cylinder mounting base plate 43 is fixedly connected with a cylinder mounting vertical plate 44, the clamping drive cylinder 42 is fixedly connected to the cylinder mounting vertical plate 44, and the edges of the cylinder mounting base plate 43 and the cylinder mounting vertical plate 44 are fixedly connected with cylinder reinforcement ribs 45.

[0040] Specifically, see Figure 3 The sub-capacity mounting base frame 11 is provided with a first linear guide rail 13, and the first linear guide rail 13 is arranged in the horizontal direction. The first linear guide rail 13 is slidably connected to the first slider, and the first slider is fixedly connected to the cam mounting horizontal plate 46, and the cam mounting vertical plate 41 is fixedly connected to the cam mounting horizontal plate 46. The edges of the cam mounting vertical plate 41 and the cam mounting horizontal plate 46 are fixedly connected with a cam reinforcement plate 47. One of the cam reinforcement plates 47 is fixedly connected to a cylinder connecting block 48, and the cylinder connecting block 48 is provided with a connecting groove. The piston rod of the clamping drive cylinder 42 is fixedly connected to a movable joint 421, and the end of the movable joint 421 is provided with an outer edge, and the movable joint 421 is matched and connected with the cylinder connecting block 48.

[0041] Specifically, see Figure 2 The sub-capacity installation chassis 11 is fixedly connected with a plurality of support columns 14, and the support columns 14 are fixedly connected with a wiring installation board 141, and the wiring installation board 141 is provided with a quick-connect terminal, a speed regulating valve, and a solenoid valve. The support columns 14 are fixedly connected with a support plate, and the support plate is fixedly connected with a cooling fan 142.

[0042] Specifically, see Figure 1 , Figure 7 The sub-capacity mounting base frame 11 is fixedly connected with a second linear guide rail 15, which is arranged in the longitudinal direction. The second linear guide rail 15 is slidably connected with a second slider, and the second slider is fixedly connected with a sliding plate 71. Two lateral sides of the sliding plate 71 are fixedly connected with two positioning plate uprights 72, and the top of the positioning plate uprights 72 is fixedly connected with a module support plate 73. Figure 7 The bottom wall of the sliding plate 71 is fixedly connected with a sliding plate driving cylinder 74, and the piston rod end of the sliding plate driving cylinder 74 is fixedly connected with the sub-capacity mounting base 11.

[0043] Specifically, see Figure 1 , Figure 7 The top wall edge and both longitudinal ends of the module support plate 73 are fixedly connected with guide blocks 731, and the lower sides of both longitudinal ends of the module support plate 73 are fixedly connected with travel switches 732 ( Figure 1 Only the travel switch 732 at the front end of the module support plate 73 is shown).

[0044] The working principle of the high current soft pack battery test bed is as follows:

[0045] refer to Figure 3 , in such Figure 3 In the initial state, the clamping drive cylinder 42 drives the piston rod to retract, thereby driving the cam mounting plate 41 to move in the direction of piston rod retraction. Since the first cam groove 411 and the second cam groove 412 are arranged in a horizontal "eight" shape, and the first roller bearing follower 25 is slidably arranged in the first cam groove 411, and the second roller bearing follower 34 is slidably arranged in the second cam groove 412. When the cam mounting plate 41 moves in the direction of piston rod retraction, the first cam groove 411 and the second cam groove 412 drive the first roller bearing follower 25 and the second roller bearing follower 34 to move toward each other at a uniform speed, thereby driving the current clamp mounting plate 21 and the insulating clamp assembly 3 to move toward each other at a uniform speed (reference Figure 5 , Figure 6 ), thereby driving the insulating current clamp seat 31 and the current clamp mounting seat 22 to move toward each other at a uniform speed (reference Figure 1 ), so that the tab (not shown) receives the same clamping force from the insulating current clamp seat 31 and the current clamp mounting seat 22, thereby preventing the tab from being damaged during the detection process. In addition, the present invention can increase the contact area between the bottom of the tab and the metal pole piece 32 (copper pole piece) on the insulating current clamp seat 31, reduce the impedance between the battery tab and the insulating current clamp seat 31, reduce production costs and maintenance costs, and improve test efficiency and accuracy.

[0046] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. High current soft pack battery test bed, characterized by: include: A sub-capacity installation base frame, wherein a plurality of supporting guide columns are fixedly connected to the top side of the sub-capacity installation base frame, the sub-capacity installation base frame is provided with a first linear guide rail, the first linear guide rail is arranged in a transverse direction, the first linear guide rail is slidably connected with a first slider, the first slider is fixedly connected with a cam installation transverse plate, the sub-capacity installation base frame is provided with a clamping drive cylinder, the piston rod of the clamping drive cylinder is fixedly connected with a movable joint, and the end of the movable joint is provided with an outer edge; A current clamp mounting plate, wherein the current clamp mounting plate is slidably connected to the support guide column, a current clamp mounting seat is fixedly connected to the front side of the current clamp mounting plate, the current clamp mounting seat is provided with a current probe, and a first roller spindle is fixedly connected to the rear side of the current clamp mounting plate, and the first roller spindle is rollably provided with a first roller bearing follower; An insulating clamp assembly, wherein the insulating clamp assembly is slidably connected to the supporting guide column, the insulating clamp assembly is provided with a plurality of insulating current clamp seats, the insulating current clamp seats are provided with metal pole pieces, a second roller spindle is fixedly connected to the rear side of the insulating clamp assembly, and the second roller spindle is rollably provided with a second roller bearing follower; The cam mounting vertical plate is fixedly connected to the cam mounting cross plate, and the edges of the cam mounting vertical plate and the cam mounting cross plate are fixedly connected with a cam reinforcement plate, one of the cam reinforcement plates is fixedly connected to a cylinder connecting block, the cylinder connecting block is provided with a connecting groove, the movable joint is cooperatively connected with the cylinder connecting block, so that the cam mounting vertical plate can be slidably arranged on the sub-capacity mounting base, the piston rod of the clamping drive cylinder is fixedly connected to the cam mounting vertical plate, the cam mounting vertical plate is provided with a first cam groove and a second cam groove, the first cam groove is located on the upper side of the second cam groove, the first cam groove and the second cam groove are relatively close to each other on one side of the cam mounting vertical plate, and the first cam groove and the second cam groove are relatively separated from each other on the other side of the cam mounting vertical plate, thereby forming an "eight" shape along the horizontal direction, the first roller bearing follower is slidably arranged in the first cam groove, and the second roller bearing follower is slidably arranged in the second cam groove.

2. The high current soft pack battery test bed of claim 1, characterized in that: The insulating clamp assembly includes two insulating clamp mounting plates, and the rear sides of the two insulating clamp mounting plates are fixedly connected to a plurality of linear bearings, and the linear bearings can be slidably mounted on the supporting guide columns. A plurality of insulating clamp mounting rods are connected between the two insulating clamp mounting plates, and the insulating clamp mounting rods are fixedly connected to a plurality of the insulating current clamp seats.

3. The high current soft pack battery test needle bed according to claim 2, characterized in that: There are multiple insulating current clamp seats, the insulating clamp mounting rod is vertically arranged, and each insulating current clamp seat is arranged along the insulating clamp mounting rod. The top side of each insulating current clamp seat is fixedly connected with the metal pole piece, and the metal pole piece is a copper pole piece.

4. The high current soft pack battery test bed of claim 1, characterized in that: The current clamp mounting plate and the current clamp mounting plate are both provided with two roller vertical plates, a roller horizontal plate is fixedly connected between the two roller vertical plates, and roller limiting blocks are fixedly connected to the sides of the roller vertical plates.

5. The high current soft pack battery test bed of claim 1, characterized in that: The sub-capacity mounting frame is fixedly connected to a cylinder mounting base plate, the cylinder mounting base plate is fixedly connected to a cylinder mounting vertical plate, the clamping drive cylinder is fixedly connected to the cylinder mounting vertical plate, and cylinder reinforcement ribs are fixedly connected to the edges of the cylinder mounting base plate and the cylinder mounting vertical plate.

6. The high current soft pack battery test bed of claim 1, characterized in that: The sub-capacity installation chassis is fixedly connected to a plurality of support columns, the support columns are fixedly connected to a wiring installation plate, the wiring installation plate is provided with quick-connect terminals, a speed regulating valve, and a solenoid valve, the support columns are fixedly connected to a support plate, and the support plate is fixedly connected to a cooling fan.

7. The high current soft pack battery test bed of claim 1, characterized in that: The sub-capacity mounting base is fixedly connected to a second linear guide rail, which is arranged longitudinally. The second linear guide rail is slidably connected to a second slider, which is fixedly connected to a sliding plate. Two lateral sides of the sliding plate are fixedly connected to two positioning plate uprights, and the top of the positioning plate uprights is fixedly connected to a module support plate. The bottom wall of the sliding plate is fixedly connected to a sliding plate driving cylinder, and the piston rod end of the sliding plate driving cylinder is fixedly connected to the sub-capacity mounting base.

8. The high current soft pack battery test bed of claim 7, characterized in that: The top wall edge and both longitudinal ends of the module support plate are fixedly connected with guide blocks, and the lower sides of both longitudinal ends of the module support plate are fixedly connected with travel switches.

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