A battery formation cabinet

Abstract

The invention discloses a battery formation cabinet, comprising a formation cabinet body and a formation test assembly arranged on the formation cabinet body. The formation test assembly comprises a formation drawer and a plurality of groups of clips, the battery is placed upright on the clips, the formation drawer comprises a plurality of formation clips, the clips are arranged above the formation clips, the battery is clamped upright on the formation clips, and the battery pole lugs are located below an air bag. The battery to be formed is placed in the clips in advance, the battery is placed upright, and the battery pole lugs are located below the air bag, then the clips with the battery installed are placed on the formation drawer, and the formation clips clamp the battery pole lugs, then the formation test assembly with the clips installed is placed on the formation cabinet body and the formation test assembly is fixed, and then the battery is energized to form. In the present invention, since the battery air bag is located above the pole lug, the electrolyte will not penetrate into the air bag during formation, thereby ensuring the quality of the battery.

Description

Technical Field

[0001] The invention relates to the field of battery formation, and in particular to a battery formation cabinet. Background Art

[0002] After lithium-ion batteries are produced, they usually need to be formed, that is, the battery is charged once to activate the battery. After the formation is completed, the battery can start to charge and discharge normally. Battery formation is the initialization of the battery, which activates the active substances of the battery and is an energy conversion process. Now, batteries are usually formed by formation equipment. Traditional formation equipment usually installs formation clamps on the formation tray. During the formation, the battery is clamped horizontally on the formation clamp for formation. However, lithium-ion batteries are prone to gas production and volume expansion during the formation process. If the battery is placed horizontally and too much gas is produced during the formation process, it is easy to cause the electrolyte to penetrate into the airbag bag, affecting the quality of the battery.

[0003] Therefore, the prior art has defects and needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a battery formation cabinet to solve the problem that the electrolyte easily penetrates into the airbag bag when the battery is placed horizontally during battery formation.

[0005] The technical solution of the present invention is as follows: a battery formation cabinet is provided, comprising: a formation cabinet body, and a plurality of formation test components arranged on the formation cabinet body, wherein the formation test components can be removed from the formation cabinet body;

[0006] The formation test assembly comprises: a formation drawer and a plurality of groups of clips arranged on the formation drawer, wherein the clips are used to place batteries to be formed, and the batteries are placed upright on the clips; the formation drawer comprises a plurality of formation clips, wherein the clips are arranged above the formation clips, and the batteries are clamped upright on the formation clips, and the battery tabs are located below the airbag bag.

[0007] Furthermore, the formation drawer includes: a jig bottom plate, an opening and clamping cylinder installed and fixed on one end of the jig bottom plate, an opening and clamping sheet metal arranged below the jig bottom plate and connected to the telescopic rod of the opening and clamping cylinder, a heating plate arranged between the jig bottom plate and the opening and clamping sheet metal, and a circuit board arranged on the jig bottom plate, the formation clamp is arranged on the circuit board, the opening and clamping cylinder drives the opening and clamping sheet metal to move horizontally to open or close the formation clamp, and the clamping opening of the formation clamp is vertically upward.

[0008] Further, the formation clamp comprises: a clamp seat, a clamp rotating pin arranged on the clamp seat, a torsion spring sleeved on the clamp rotating pin, a dynamic clamp arranged on the clamp rotating pin, a first copper sheet arranged on the dynamic clamp, and a second copper sheet arranged on the clamp seat;

[0009] The bottom of the clip seat is a rectangular frame that passes through from top to bottom, two first pillars are provided on the left edge of the top of the rectangular frame, two second pillars are provided on the right edge of the top of the rectangular frame, the second copper sheet is provided on the first pillar, the clip pivot pin is provided inside the rectangular frame, the bottom of the dynamic clip is connected to the clip pivot pin, two third pillars are provided on the top of the dynamic clip, and the first copper sheet is provided on the side of the third pillar facing the second copper sheet.

[0010] Furthermore, a protrusion is provided at the bottom end of the dynamic clamp, and the formation clamp is opened or closed by pressing or releasing the protrusion. An opening is provided on the circuit board and the bottom plate of the jig corresponding to each formation clamp, and the protrusion extends out of the opening. A folding plate is provided on the unclamping sheet metal corresponding to the protrusion of each formation clamp, and the folding plate extends into the opening of the jig bottom plate. When the unclamping sheet metal moves forward horizontally, the folding plate presses the protrusion.

[0011] Furthermore, the magazine comprises: a plurality of magazine boxes stacked and clamped together, a plurality of battery mounting slots are provided on the front and back of the magazine box, mounting holes are provided on the front side of the magazine box corresponding to the two sides of each battery mounting slot, mounting posts are provided on the back side of the magazine box corresponding to the positions of the two mounting holes, when two adjacent magazine boxes are assembled, the mounting posts of one magazine box are inserted into the mounting holes of the other magazine box, an air avoidance slot is provided below the battery mounting slot, and the formation clip is placed in the air avoidance slot.

[0012] Furthermore, the formation cabinet includes: a frame, a plurality of rows of load-bearing frames arranged on the frame, a drawer guide rail arranged on the load-bearing frame, and a quick clamp arranged at one end of the drawer guide rail, the formation test assembly is placed on the load-bearing frame, and the drawer guide rail includes a bearing seat and a plurality of rolling bearings arranged on the bearing seat.

[0013] Furthermore, a plurality of bosses are provided on the bottom surface of the jig base plate, and external threads are provided on the bosses. The clamping sheet metal and the heating plate are provided with long holes corresponding to the bosses. After the bosses pass through the long holes, nuts are sleeved on the bottom ends of the bosses, and flat washers are provided between the nuts and the clamping sheet metal.

[0014] Furthermore, an insulating plate is provided between the jig bottom plate and the circuit board.

[0015] Furthermore, clip mounting grooves are provided at both ends of the front and back of the magazine box, and a connecting clip is provided in the clip mounting groove. The connecting clip is U-shaped, and includes a bottom plate and elastic side plates arranged on both sides of the bottom plate, and the ends of the elastic side plates are provided with arc-shaped grooves.

[0016] Furthermore, a plurality of pairs of guide plates are provided on both sides of the jig base plate, each pair of guide plates is provided with a group of spring clips correspondingly, a plurality of positioning pins are provided on both sides of the jig base plate, and positioning pin holes are provided on both sides of the spring clips corresponding to the positioning pins.

[0017] By adopting the above scheme, the battery to be formed is placed in a clip in advance, the battery is placed upright, and the battery's pole ear is located below the airbag bag, then the clip with the battery installed is placed on the formation drawer, and the formation clip clamps the battery's pole ear, and then the formation test assembly with the clip installed is placed on the formation cabinet and fixed, and then the battery is powered on to form. In the present invention, since the battery's airbag bag is located above the pole ear, the electrolyte will not penetrate into the airbag bag during formation, thereby ensuring the quality of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the present invention after omitting the outer cover.

[0020] Figure 3 It is a structural schematic diagram of the formation test assembly of the present invention.

[0021] Figure 4 The structure of the drawer of the present invention is shown in FIG. Figure 1 .

[0022] Figure 5 The structure of the drawer of the present invention is shown in FIG. Figure 2 .

[0023] Figure 6 The exploded view of the drawer of the present invention is shown in FIG.

[0024] Figure 7 It is a partial cross-sectional view of the drawer of the present invention.

[0025] Figure 8 It is a schematic diagram of the structure of the forming clip of the present invention.

[0026] Fig. 9 It is a schematic diagram of the assembly of the formation clip and the battery of the present invention.

[0027] Fig.10 It is a schematic structural diagram of the magazine of the present invention.

[0028] Fig.11 The structure of the magazine box of the present invention is schematically shown in FIG. Figure 1 .

[0029] Fig.12 The structure of the magazine box of the present invention is schematically shown in FIG. Figure 2 .

[0030] Fig.13 It is a schematic structural diagram of the connecting clip of the present invention.

[0031] Fig.14 It is a schematic diagram of the connection of two connecting clips of the present invention.

[0032] Fig.15 It is a structural schematic diagram of the formation cabinet of the present invention.

[0033] Fig.16 It is a schematic structural diagram of the drawer guide rail of the present invention. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] See also Figure 1 and Figure 2 The present invention provides a battery formation cabinet, comprising: a formation cabinet body 1, and a plurality of formation test assemblies 2 arranged on the formation cabinet body 1, wherein the formation test assemblies 2 can be removed from the formation cabinet body 1, and an outer cover 100 is arranged on the outer side of the formation cabinet body 1. A plurality of rows of formation test assemblies 2 are horizontally placed on the formation cabinet body 1, and each row of formation test assemblies 2 is provided with a plurality of formation test assemblies 2 from top to bottom.

[0036] See also Figure 3 and Figure 4 The formation test assembly 2 comprises: a formation drawer 3 and a plurality of groups of clips 4 arranged on the formation drawer 3. The clips 4 are used to place batteries to be formed, and the batteries are placed upright on the clips 4, and when placed, the battery tabs are located below the airbag bag, and the battery tabs are exposed to the clips 4. The formation drawer 3 comprises a plurality of formation clips 30, and the clips 4 are arranged above the formation clips 30, and the batteries are clamped upright on the formation clips 30, and the formation clips 30 clamp the battery tabs.

[0037] See also Figures 4 to 7The formation drawer 3 comprises: a fixture bottom plate 31, a clamping cylinder 32 fixed to one end of the fixture bottom plate 31, a clamping sheet metal 33 arranged below the fixture bottom plate 31 and connected to the telescopic rod of the clamping cylinder 32, a heating plate 34 arranged between the fixture bottom plate 31 and the clamping sheet metal 33, and a circuit board 35 arranged on the fixture bottom plate 31. The formation clamp 30 is arranged on the circuit board 35, and the clamping cylinder 32 drives the clamping sheet metal 33 to move horizontally to open or close the formation clamp 30. The clamping opening of the formation clamp 30 is vertically upward, and the tab of the battery to be formed is clamped on the clamping opening.

[0038] Please refer to Figure 8 and Fig. 9 The formation clamp 30 includes: a clamp seat 301, a clamp rotating pin arranged on the clamp seat 301, a torsion spring sleeved on the clamp rotating pin, a dynamic clamp 302 arranged on the clamp rotating pin, a first copper sheet 303 arranged on the dynamic clamp 302, and a second copper sheet 304 arranged on the clamp seat 301.

[0039] Specifically, the bottom of the clip seat 301 is a rectangular frame that is through from top to bottom. Two first pillars 305 are provided at the left edge of the top of the rectangular frame, and two second pillars 306 are provided at the right edge of the top of the rectangular frame. The two first pillars 305 and the two second pillars 306 are vertically provided on the rectangular frame, and the second copper sheet 304 is provided on the first pillar 305. The clip rotation pin is provided inside the rectangular frame, and the bottom of the dynamic clip 302 is connected to the clip rotation pin. A through hole 307 for installing the clip rotation pin is provided on the rectangular frame, and both ends of the clip rotation pin are embedded in the through hole 307. The dynamic clip 302 is provided with two third pillars 303 at the top of the dynamic clip 302, and the third pillar 303 is located between the first pillar 305 and the second pillar 306. The first copper sheet 303 is provided on the side of the third pillar 303 facing the second copper sheet 304.

[0040] The bottom end of the dynamic clamp 302 is provided with a protrusion 3021, which protrudes from the bottom end of the rectangular frame. The formation clamp is opened or closed by pressing or releasing the protrusion 3021. The circuit board 35, the fixture bottom plate 31 and the heating plate 34 are provided with openings corresponding to each formation clamp, and the protrusion 3021 extends out of the opening. The protrusion 3021 corresponding to each formation clamp on the opening clamp sheet metal 33 is provided with a folding plate 331, and the folding plate 331 extends into the opening of the fixture bottom plate 31. When the opening clamp sheet metal 33 moves forward horizontally, the folding plate 331 presses the protrusion 3021.

[0041] The telescopic rod of the opening clamp cylinder 32 drives the opening clamp sheet metal 33 to move, and the folding plate 331 on the opening clamp sheet metal 33 squeezes the protrusion 3021 of the formation clamp, so that the formation clamp 30 opens, the battery is erected and the battery tab is clamped in the clamping opening of the formation clamp 30. At this time, the battery tab is below the airbag bag, and then the telescopic rod of the opening clamp cylinder 32 retracts, the formation clamp 30 is closed, and the battery is firmly clamped.

[0042] An insulating plate 36 is provided between the jig bottom plate 31 and the circuit board 35. A plurality of bosses 311 are provided on the bottom surface of the jig bottom plate 31, and external threads are provided on the bosses 311. The clamping sheet metal 33 and the heating plate 34 are provided with elongated holes 332 corresponding to the bosses 311. After the bosses 311 pass through the elongated holes 332, a nut 333 is sleeved on the bottom end of the boss 311. A flat washer 334 is provided between the nut 333 and the clamping sheet metal 33. The clamping sheet metal 33 is located between the flat washer 334 and the heating plate 34. The flat washer 334 supports the clamping sheet metal 33, and the nut 333 and the flat washer 334 do not lock the clamping sheet metal 33, so that the clamping sheet metal 33 can translate between the flat washer 334 and the heating plate 34.

[0043] See also Figures 10 to 12 The clip 4 includes: a plurality of clip boxes 41 stacked and clamped together, and a plurality of battery mounting slots 42 are provided on the front and back of the clip box 41, and each battery mounting slot 42 corresponds to a battery. The battery has two sockets, and mounting holes 421 are provided on the front of the clip box 41 corresponding to the two sides of each battery mounting slot 42, and mounting posts 422 are provided on the back of the clip box 41 corresponding to the positions of the two mounting holes 421. During assembly, the battery tabs are facing downward and the airbag bag is facing upward, and then the battery is inserted into the mounting post 422 of a clip box 41 through the sockets provided, and then the mounting post 422 is inserted into the mounting hole 421 of another clip box 41, so as to clamp the battery to the clip box 41. After all batteries are installed in a group of clips 41, the whole group of clips 41 and the battery are placed above the formation clip 30, and then the formation clip 30 is opened so that the clamping mouth clamps the tabs. A clearance groove 200 is provided below the battery installation groove 42, and the formation clip 30 is placed in the clearance groove 200. The clip 4 is suitable for clamping batteries of various sizes, as long as the spacing between the battery jacks remains constant.

[0044] Please refer to Fig.13 and Fig.14The front and back ends of the magazine box 41 are provided with clip installation grooves 43, and the clip installation grooves 43 are provided with connecting clips 44. The connecting clips 44 are U-shaped and include a bottom plate 441 and elastic side plates 442 provided on both sides of the bottom plate 441. The ends of the elastic side plates 442 are provided with arc-shaped slots 443. When two magazine boxes 41 are assembled together, the connecting clips 44 of the two magazine boxes 41 are clamped together through the arc-shaped slots 443, so that the magazine boxes 41 are fixedly connected.

[0045] In this embodiment, two groups of clips 4 are placed on each formation drawer 3. The jig bottom plate 31 is provided with guide plates 37 at the position corresponding to each group of clips 4, and the front and rear sides of each group of clips 4 are provided with guide plates 37, and the guide plates 37 are arranged obliquely. Positioning pins 300 are provided on both sides of the jig bottom plate 31, and positioning pin holes 400 are provided on both sides of the clip 4 corresponding to the positioning pins 300. When placing the clip 4 on the jig bottom plate 31, slide the clip 4 along the guide plates 37, so that the positioning pin holes 400 of the clip 4 are inserted into the positioning pins 300 on the jig bottom plate 31.

[0046] See also Fig.15 and Fig.16 The formation cabinet 1 comprises: a frame 10, a plurality of rows of carrier frames 11 arranged on the frame 10, a drawer guide rail 12 arranged on the carrier frame 11, and a quick clamp 13 arranged at one end of the drawer guide rail 12. The formation test assembly 2 is placed on the carrier frame 11. The drawer guide rail 12 comprises a bearing seat and a plurality of rolling bearings 14 arranged on the bearing seat, some of the rolling bearings 14 are arranged horizontally, and some of the rolling bearings 14 are arranged vertically. When the formation test assembly 2 is placed in the formation cabinet 1, the formation test assembly 2 slides into the formation cabinet 1 along the rolling bearings 14, so that the formation test assembly 2 can slide in and out conveniently. After the formation test assembly 2 is slid into the formation cabinet 1, the formation test assembly 2 is locked using the quick clamp 13.

[0047] In summary, the battery to be formed is placed in a clip in advance, the battery is placed upright, and the battery's pole ear is located below the airbag bag, then the clip with the battery installed is placed on the formation drawer, and the formation clip clamps the battery's pole ear, and then the formation test assembly with the clip installed is placed on the formation cabinet and the formation test assembly is fixed, and then the battery is powered on to form. In the present invention, since the battery's airbag bag is located above the pole ear, the electrolyte will not penetrate into the airbag bag during formation, thereby ensuring the quality of the battery.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery formation cabinet, characterized in that: include: A formation cabinet, and a plurality of formation test components arranged on the formation cabinet, wherein the formation test components can be removed from the formation cabinet; The formation test assembly comprises: a formation drawer and a plurality of groups of clips arranged on the formation drawer, wherein the clips are used to place batteries to be formed, and the batteries are placed upright on the clips; the formation drawer comprises a plurality of formation clips, wherein the clips are arranged above the formation clips, and the batteries are clamped upright on the formation clips, and the battery tabs are located below the airbag bag; The formation drawer comprises: a fixture bottom plate, a clamping cylinder installed and fixed at one end of the fixture bottom plate, a clamping sheet metal arranged below the fixture bottom plate and connected to the telescopic rod of the clamping cylinder, a heating plate arranged between the fixture bottom plate and the clamping sheet metal, and a circuit board arranged on the fixture bottom plate, the formation clamp is arranged on the circuit board, the clamping cylinder drives the clamping sheet metal to move horizontally to open or close the formation clamp, and the clamping opening of the formation clamp is vertically upward; The formation clamp comprises: a clamp seat, a clamp rotating pin arranged on the clamp seat, a torsion spring sleeved on the clamp rotating pin, a dynamic clamp arranged on the clamp rotating pin, a first copper sheet arranged on the dynamic clamp, and a second copper sheet arranged on the clamp seat; The bottom of the clip seat is a rectangular frame that passes through from top to bottom, two first pillars are provided on the left edge of the top of the rectangular frame, two second pillars are provided on the right edge of the top of the rectangular frame, the second copper sheet is provided on the first pillar, the clip pivot pin is provided inside the rectangular frame, the bottom of the dynamic clip is connected to the clip pivot pin, two third pillars are provided on the top of the dynamic clip, and the first copper sheet is provided on the side of the third pillar facing the second copper sheet.

2. The battery formation cabinet according to claim 1, characterized in that: A protrusion is provided at the bottom end of the dynamic clamp, and the formation clamp is opened or closed by pressing or releasing the protrusion. An opening is provided on the circuit board and the bottom plate of the jig corresponding to each formation clamp, and the protrusion extends out of the opening. A folding plate is provided on the opening sheet metal corresponding to the protrusion of each formation clamp, and the folding plate extends into the opening of the bottom plate of the jig. When the opening sheet metal moves forward horizontally, the folding plate presses the protrusion.

3. The battery formation cabinet according to claim 1, characterized in that: The magazine comprises: a plurality of magazine boxes stacked and clamped together, a plurality of battery mounting slots are provided on the front and back of the magazine box, mounting holes are provided on the front side of the magazine box corresponding to the two sides of each battery mounting slot, mounting posts are provided on the back side of the magazine box corresponding to the positions of the two mounting holes, when two adjacent magazine boxes are assembled, the mounting posts of one magazine box are inserted into the mounting holes of the other magazine box, an air avoidance slot is provided below the battery mounting slot, and the formation clip is placed in the air avoidance slot.

4. The battery formation cabinet according to claim 1, characterized in that: The formation cabinet comprises: a frame, a plurality of rows of carrier frames arranged on the frame, a drawer guide rail arranged on the carrier frame, and a quick clamp arranged at one end of the drawer guide rail. The formation test assembly is placed on the carrier frame. The drawer guide rail comprises a bearing seat and a plurality of rolling bearings arranged on the bearing seat.

5. The battery formation cabinet according to claim 1, characterized in that: The bottom surface of the jig bottom plate is provided with a plurality of bosses, and the bosses are provided with external threads. The clamping sheet metal and the heating plate are provided with long holes corresponding to the bosses. After the bosses pass through the long holes, nuts are sleeved on the bottom ends of the bosses, and flat washers are provided between the nuts and the clamping sheet metal.

6. The battery formation cabinet according to claim 1, characterized in that: An insulating plate is provided between the fixture bottom plate and the circuit board.

7. The battery formation cabinet according to claim 3, characterized in that: The front and back ends of the magazine box are provided with clip installation grooves, and a connecting clip is provided in the clip installation groove. The connecting clip is U-shaped and includes a bottom plate and elastic side plates arranged on both sides of the bottom plate. The ends of the elastic side plates are provided with arc-shaped slots.

8. The battery formation cabinet according to claim 1, characterized in that: A plurality of pairs of guide plates are arranged on both sides of the jig bottom plate, each pair of guide plates is provided with a group of spring clips correspondingly, a plurality of positioning pins are arranged on both sides of the jig bottom plate, and positioning pin holes are arranged on both sides of the spring clips corresponding to the positioning pins.

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