Lithium battery PACK soldering tin jig

Abstract

The utility model discloses a lithium battery PACK tin soldering jig, which relates to the technical field of welding positioning, and comprises a positioning plate, the top end of the positioning plate is provided with a placing groove, the top end of the positioning plate is provided with stroke grooves at the two sides of the placing groove, the top end of the positioning plate is provided with a positioning assembly extending into the stroke grooves in a sliding manner, and the positioning assembly is provided with a positioning groove. A lithium battery is arranged in the placement groove, and a protection plate in contact with the lithium battery is arranged between the positioning assembly and the positioning plate; the positioning assembly comprises a driving strip making contact with the upper surface of the positioning plate. The position of the driving strip is replaced in a time-saving mode through the positioning assembly, protection plates of different sizes can be efficiently positioned, the working efficiency of lithium battery tin soldering is improved in a disguised mode, meanwhile, the left outer wall and the right outer wall of a lithium battery can be clamped and positioned, the situation that the lithium battery deviates due to external force is avoided, and the service life of the lithium battery is prolonged. And it is ensured that the tab of the lithium battery and the protection plate are precisely soldered.

Description

Technical Field

[0001] The utility model relates to the technical field of welding positioning, in particular to a lithium battery PACK soldering fixture. Background Art

[0002] In modern society, the application of lithium batteries has become more and more widespread. The lithium battery pack structure generally includes a battery panel assembly and a protection panel assembly, which need to be fixed with the help of a welding device.

[0003] The existing patent (authorization announcement number: CN 210498964 U) discloses a lithium battery pack welding positioning device, which has a simple structure, high reliability, good versatility, high installation efficiency and low cost; it solves the technical problems of poor versatility of fixtures, low installation efficiency and high cost in the lithium battery pack welding structure in the prior art.

[0004] However, the above technical solution still has certain defects. The sliding rod and the sliding groove are fixed by screws. When the size of the protection plate is different, it is necessary to change the position of the sliding rod, and then turn the screw to unlock it before moving it, which makes the positioning of the sliding rod more time-consuming, thereby reducing the soldering efficiency of the lithium battery in disguise. Therefore, a lithium battery PACK soldering fixture is proposed. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a lithium battery PACK soldering fixture to solve the technical problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery PACK soldering fixture, comprising a positioning plate, a placement groove is provided at the top of the positioning plate, travel grooves are provided at the top of the positioning plate on both sides of the placement groove, a positioning component extending into the travel groove is slidably provided at the top of the positioning plate, a lithium battery is provided in the placement groove, and a protective plate in contact with the lithium battery is provided between the positioning component and the positioning plate;

[0007] The positioning assembly includes an active bar in contact with the upper surface of the positioning plate, and two groups of constraint blocks are slidably provided in the travel grooves and fixed to the bottom end of the active bar. Several groups of metal hemispheres are equidistantly fixed to the inner wall of the travel groove on the side away from the lithium battery, and the outer wall of the constraint block is provided with spring beads in contact with the metal hemispheres. The bottom end of the active bar is located in the placement groove and a baffle is provided, and two groups of splints are slidably provided on the side of the baffle away from the protective plate. Constraint grooves are opened on the front and rear inner walls of the placement groove, and a U-frame is slidably provided in the constraint groove, and an oblique bar is sleeved in the U-frame. The outer wall of the splint is provided with a ball head rod extending into the constraint groove and contacting the oblique bar.

[0008] As an optimal technical solution for a lithium battery PACK soldering fixture of the utility model, the outer wall of the constraint block is located above the spring clamp bead and is provided with a slider extending into the travel groove, and a sliding groove is provided at the contact position between the inner wall of the active strip and the slider.

[0009] As an optimal technical solution for a lithium battery PACK soldering jig of the utility model, the upper and lower inner walls of the U frame are provided with guide columns extending into the inclined bars, and guide grooves are provided at the contact positions between the upper and lower outer walls of the inclined bars and the guide columns, and the length of the inclined bars is equal to that of the constraint grooves.

[0010] As an optimal technical solution for a lithium battery PACK soldering jig of the utility model, a screw is connected to the U-frame with a transverse thread, one end of the screw passes through the outside of the U-frame and is rotatably connected to the inner wall of the constraint groove, the other end of the screw passes through the outside of the left end of the positioning plate and is connected to a polygonal disk, a circular channel is opened in the positioning plate at the contact position with the screw, and the thickness of the U-frame is equal to the constraint groove.

[0011] As an optimal technical solution for a lithium battery PACK soldering jig of the utility model, a limiting groove is provided at the contact position between the baffle bar and the clamping plate, the limiting groove passes through the two sets of clamping plates and is fixed to the inner wall of the limiting groove, a reset spring is sleeved on the outer wall of the limiting groove, and the two ends of the reset spring are respectively fixed to the clamping plate and the outer wall of the base rod.

[0012] As an optimal technical solution for a lithium battery PACK soldering jig of the utility model, a positioning groove is provided at the contact position between the upper surfaces of the active strip and the positioning plate and the protective plate, and a battery ear is fixed to one end of the lithium battery close to the active strip, and the end of the battery ear is located on the upper surface of the protective plate.

[0013] As an optimal technical solution for a lithium battery PACK soldering fixture of the utility model, a rubber pad is provided at the bottom end of the positioning plate, and the rubber pad is adhered and fixed to the lower surface of the positioning plate by hot melt adhesive.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] The utility model saves time by replacing the active strip through the positioning component, can efficiently position the protection plates of different sizes, thereby improving the efficiency of lithium battery soldering in disguise. At the same time, the left and right outer walls of the lithium battery can be clamped and positioned to avoid the displacement of the lithium battery due to external force, thereby ensuring that the lithium battery's pole ear and the protection plate are accurately soldered. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a bottom view of the positioning assembly of the utility model;

[0018] Figure 3 It is a top view cutaway diagram of the utility model;

[0019] Figure 4 It is a cutaway structural diagram of the utility model;

[0020] Figure 5 It is a bottom-up cutaway view of the positioning assembly of the utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of the positioning plate of the utility model;

[0022] Figure 7 For the utility model Figure 5 Enlarged view of point A in the middle;

[0023] Figure 8 For the utility model Figure 5 Enlarged view of point B in the middle.

[0024] In the figure: 100, positioning plate; 200, lithium battery; 300, positioning assembly; 400, protection plate;

[0025] 110, travel groove; 111, metal hemisphere; 120, placement groove; 130, constraint groove;

[0026] 310, active strip; 320, stop strip; 321, limit groove; 322, base rod; 330, splint; 340, oblique strip; 341, guide groove; 350, U frame; 351, guide column; 360, constraint block; 361, spring card bead; 362, slider; 370, screw rod; 380, ball head rod. DETAILED DESCRIPTION

[0027] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A lithium battery PACK soldering fixture, such as Figures 1 to 8 As shown, it includes a positioning plate 100, a placement groove 120 is opened at the top of the positioning plate 100, and travel grooves 110 are opened on both sides of the placement groove 120 at the top of the positioning plate 100, and a positioning component 300 extending into the travel groove 110 is slidably provided at the top of the positioning plate 100, a lithium battery 200 is arranged in the placement groove 120, and a protective plate 400 in contact with the lithium battery 200 is arranged between the positioning component 300 and the positioning plate 100;

[0030] The positioning assembly 300 includes an active bar 310 in contact with the upper surface of the positioning plate 100, and a constraint block 360 fixed to the bottom end of the active bar 310 is slidably provided in two groups of travel grooves 110, and a plurality of groups of metal hemispheres 111 are equidistantly fixed to the inner wall of the travel groove 110 on the side away from the lithium battery 200, and a spring bead 361 in contact with the metal hemisphere 111 is provided on the outer wall of the constraint block 360, and the bottom end of the active bar 310 is located in the placement groove 120 and a baffle 320 is provided, and two groups of splints 330 are slidably provided on the side of the baffle 320 away from the protective plate 400, and the front and rear inner walls of the placement groove 120 are provided with a constraint groove 130, and a U frame 350 is slidably provided in the constraint groove 130, and an inclined bar 340 is sleeved in the U frame 350, and a ball head rod 380 is provided on the outer wall of the splint 330 extending into the constraint groove 130 and contacting the inclined bar 340.

[0031] The lithium battery 200 is placed in the placement groove 120 and is located between the two groups of clamping plates 330. At the same time, one end of the lithium battery 200 contacts the blocking bar 320 and is located on the upper surface of the active bar 310. Then, an external force is applied to the lithium battery 200 to push the active bar 310 to move horizontally. At the same time, the ball head rod 380 moves synchronously with the clamping plate 330. During the movement, the end of the ball head rod 380 contacts and is squeezed by the inclined bar 340, so that the clamping plate 330 approaches the lithium battery 200 until it is fitted to complete the clamping effect. Then, the protective plate 400 is placed in the positioning groove opened on the upper surface of the active bar 310 and the positioning plate 100. At this time, an external force is continued to be applied to the lithium battery 200 to make the active bar 310 continue to move until the pole ear of the lithium battery 200 is located on the upper surface of the protective plate 400 and soldering can be performed;

[0032] When the active bar 310 moves, the two groups of constraint blocks 360 on the lower surface slide in the travel groove 110, and the metal hemisphere 111 hinders the spring clamping bead 361, and squeezes the spring clamping bead 361 to retract into the constraint block 360. When the spring clamping bead 361 is located between the two groups of metal hemispheres 111, it extends again, thereby limiting the moved constraint block 360 and the active bar 310. In this way, the active bar 310 can be more efficiently replaced, thereby improving the efficiency of soldering the lithium battery 200 in disguised form.

[0033] When clamping lithium batteries 200 of different sizes, a tool is used to apply external force to the screw rod 370 to rotate it, so that the U frame 350 moves along the outer wall of the screw rod 370 in the constraint groove 130, and then pushes the bevel bar 340 to move closer to or away from the lithium battery 200, changing the contact position between the ball head rod 380 and the bevel bar 340, thereby controlling the relative approach stroke of the two sets of clamps 330, and lithium batteries 200 of different sizes can be clamped until the soldering purpose is completed, further expanding the scope of application of the device.

[0034] Please refer to Figure 1 , Figure 2 and Figure 6 The outer wall of the constraint block 360 is located above the spring clamping bead 361 and is provided with a slider 362 extending into the travel groove 110 , and a sliding groove is provided at the contact position between the inner wall of the active strip 310 and the slider 362 .

[0035] The slider 362 can only move horizontally in the slide slot, so as to prevent the active bar 310 from being separated from the positioning plate 100 .

[0036] Please refer to Figure 5 and Figure 8 The upper and lower inner walls of the U-frame 350 are provided with guide columns 351 extending into the inclined bar 340, and guide grooves 341 are provided at the contact positions between the upper and lower outer walls of the inclined bar 340 and the guide columns 351. The length of the inclined bar 340 is equal to the constraint groove 130; a screw rod 370 is connected with a transverse thread in the U-frame 350, one end of the screw rod 370 passes through the outside of the U-frame 350 and is rotatably connected to the inner wall of the constraint groove 130, and the other end of the screw rod 370 passes through the outside of the left end of the positioning plate 100 and is connected to a polygonal disk, a circular channel is provided in the positioning plate 100 at the contact position with the screw rod 370, and no thread is provided at the contact position between the outer wall of the screw rod 370 and the circular channel, and the thickness of the U-frame 350 is equal to the constraint groove 130.

[0037] For lithium batteries 200 of different sizes, a tool is used to be sleeved on the outer wall of the polygonal disk to apply external force, so that the screw rod 370 rotates, and then drives the U frame 350 to move in the constraint groove 130 along the direction of the screw rod 370. At this time, the guide column 351 generates an extrusion force on the guide groove 341, so that the inclined bar 340 moves toward the side close to the lithium battery 200 along the constraint groove. When the lithium battery 200 and the active bar 310 are pushed to move synchronously, the ball head rod 380 slides along the inclined surface of the inclined bar 340 and approaches the outer wall of the lithium battery 200 until it fits to complete the clamping purpose, thereby completing the clamping purpose for lithium batteries 200 of different sizes and ensuring efficient soldering.

[0038] A limiting groove 321 is provided at the contact position between the blocking bar 320 and the clamping plate 330 . The limiting groove 321 passes through the two sets of clamping plates 330 and is fixed to the inner wall of the limiting groove 321 . A return spring is sleeved on the outer wall of the limiting groove 321 . The two ends of the return spring are respectively fixed to the outer wall of the clamping plate 330 and the base rod 322 .

[0039] The two groups of clamps 330 are relatively close to each other along the base rod in the limiting groove 321 and compress the reset spring at the same time. The clamps 330 are automatically reset by the force of the reset spring, so that the clamps 330 are separated from the lithium battery 200, which is convenient for removal and subsequent re-placement of the lithium battery 200 for soldering operations.

[0040] Please refer to Figure 1A positioning groove is provided at the contact position between the upper surface of the active bar 310 and the positioning plate 100 and the protective plate 400 . A battery pole ear is fixed to one end of the lithium battery 200 close to the active bar 310 , and the end of the battery pole ear is located on the upper surface of the protective plate 400 .

[0041] It serves a certain purpose of restraining the protection plate 400 and can be conveniently contacted with the battery tab for soldering.

[0042] Please refer to Figure 1 and Figure 6 A rubber pad is provided at the bottom end of the positioning plate 100, and the rubber pad is adhered and fixed to the lower surface of the positioning plate 100 by hot melt adhesive.

[0043] The rubber pad is used to increase the friction coefficient of the bottom end of the positioning plate 100 to prevent it from being easily moved when placed on a workbench.

[0044] When in use, the lithium battery 200 is placed in the placement groove 120 and is located between the two groups of clamping plates 330. At the same time, one end of the lithium battery 200 contacts the baffle 320 and is located on the upper surface of the active strip 310. Then, an external force is applied to the lithium battery 200 to push the active strip 310 to move horizontally. At the same time, the ball head rod 380 moves synchronously with the clamping plate 330. During the movement, the end of the ball head rod 380 contacts and is squeezed by the inclined strip 340, so that the clamping plate 330 approaches the lithium battery 200 until it is fitted to complete the clamping effect. Then, the protective plate 400 is placed in the positioning groove opened on the upper surface of the active strip 310 and the positioning plate 100. At this time, an external force is continued to be applied to the lithium battery 200 to make the active strip 310 continue to move until the pole ear of the lithium battery 200 is located on the upper surface of the protective plate 400 for soldering.

[0045] When the active bar 310 moves, the two groups of constraint blocks 360 on the lower surface slide in the travel groove 110, and the metal hemisphere 111 hinders the spring clamping bead 361, and squeezes the spring clamping bead 361 to retract into the constraint block 360. When the spring clamping bead 361 is located between the two groups of metal hemispheres 111, it extends again, thereby limiting the moved constraint block 360 and the active bar 310. In this way, the active bar 310 can be more efficiently replaced, thereby improving the efficiency of soldering the lithium battery 200 in disguised form.

[0046] When clamping lithium batteries 200 of different sizes, a tool is used to apply external force to the screw rod 370 to rotate it, so that the U frame 350 moves along the outer wall of the screw rod 370 in the constraint groove 130, and then pushes the bevel bar 340 to move closer to or away from the lithium battery 200, changing the contact position between the ball head rod 380 and the bevel bar 340, thereby controlling the relative approach stroke of the two sets of clamps 330, and lithium batteries 200 of different sizes can be clamped until the soldering purpose is completed, further expanding the scope of application of the device. The parts not involved in the device are the same as the prior art or can be implemented using the prior art.

[0047] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A lithium battery PACK soldering jig, comprising a positioning plate (100), characterized in that: The top of the positioning plate (100) is provided with a placement groove (120), the top of the positioning plate (100) is provided with travel grooves (110) on both sides of the placement groove (120), the top of the positioning plate (100) is provided with a positioning component (300) extending into the travel groove (110) for sliding, the placement groove (120) is provided with a lithium battery (200), and a protection plate (400) in contact with the lithium battery (200) is provided between the positioning component (300) and the positioning plate (100); The positioning assembly (300) comprises an active strip (310) in contact with the upper surface of the positioning plate (100), a restraining block (360) fixed to the bottom end of the active strip (310) is slidably arranged in the two groups of travel grooves (110), a plurality of groups of metal hemispheres (111) are equidistantly fixed to the inner wall of the travel groove (110) away from the lithium battery (200), a spring clamping bead (361) in contact with the metal hemisphere (111) is arranged on the outer wall of the restraining block (360), and the bottom end of the active strip (310) is located at A blocking bar (320) is arranged in the placement groove (120), and two groups of clamping plates (330) are slidably arranged on the side of the blocking bar (320) away from the protection plate (400). The front and rear inner walls of the placement groove (120) are provided with a restraining groove (130), and a U frame (350) is slidably arranged in the restraining groove (130). An oblique bar (340) is sleeved in the U frame (350), and a ball head rod (380) is arranged on the outer wall of the clamping plate (330) and extends into the restraining groove (130) and contacts the oblique bar (340).

2. A lithium battery PACK soldering fixture according to claim 1, characterized in that: The outer wall of the restraining block (360) is provided with a sliding block (362) extending into the travel groove (110) above the spring clamping bead (361), and a sliding groove is provided at the contact position between the inner wall of the active strip (310) and the sliding block (362).

3. A lithium battery PACK soldering fixture according to claim 1, characterized in that: The upper and lower inner walls of the U frame (350) are provided with guide columns (351) extending into the inclined bar (340), and the upper and lower outer walls of the inclined bar (340) are provided with guide grooves (341) at the contact positions with the guide columns (351), and the length of the inclined bar (340) is equal to that of the restraining groove (130).

4. A lithium battery PACK soldering fixture according to claim 1, characterized in that: A screw rod (370) is connected to the U frame (350) via a transverse thread. One end of the screw rod (370) passes through the outside of the U frame (350) and is rotatably connected to the inner wall of the constraint groove (130). The other end of the screw rod (370) passes through the outside of the left end of the positioning plate (100) and is connected to a polygonal disk. A circular channel is provided in the positioning plate (100) at the contact position with the screw rod (370). The thickness of the U frame (350) is equal to that of the constraint groove (130).

5. A lithium battery PACK soldering fixture according to claim 1, characterized in that: A limiting groove (321) is provided at the contact position between the blocking bar (320) and the clamping plate (330), the limiting groove (321) penetrates the two groups of clamping plates (330) and is fixed to the inner wall of the limiting groove (321), and a return spring is sleeved on the outer wall of the limiting groove (321), and two ends of the return spring are respectively fixed to the outer wall of the clamping plate (330) and the base rod (322).

6. A lithium battery PACK soldering fixture according to claim 1, characterized in that: Positioning grooves are provided at the contact positions between the upper surfaces of the active strip (310) and the positioning plate (100) and the protective plate (400); a battery pole ear is fixed to one end of the lithium battery (200) close to the active strip (310); and the end of the battery pole ear is located on the upper surface of the protective plate (400).

7. A lithium battery PACK soldering fixture according to claim 1, characterized in that: A rubber pad is provided at the bottom end of the positioning plate (100), and the rubber pad is adhered and fixed to the lower surface of the positioning plate (100) by hot melt adhesive.

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