Nickel sheet positioning structure for battery pack processing

Abstract

The utility model discloses a nickel sheet positioning structure for battery pack processing, which relates to the technical field of battery pack processing and comprises a fixing mechanism, and the top end of the fixing mechanism is fixedly connected with two groups of positioning mechanisms; the positioning mechanism comprises two sets of sliding rails, the two sets of sliding rails are fixedly connected to the side wall of the fixing mechanism, the outer walls of the two sets of sliding rails are slidably sleeved with a plurality of sets of sliding sleeves correspondingly, a positioning frame is fixedly connected between the two sets of sliding sleeves in the same column, and the bottom end of the positioning frame is fixedly connected with a plurality of sets of magnets; the inner wall of the sliding sleeve is rotationally connected with a rubber plate, and a torsional spring is arranged at the position, connected with the sliding sleeve, of the rubber plate. According to the nickel plate welding device, a nickel plate is placed in the positioning frame, the nickel plate is magnetically attracted and fixed through the magnet, the position of the nickel plate is adjusted by pushing the sliding sleeve to slide on the outer wall of the sliding rail, and therefore it can be guaranteed that the nickel plate is located in the middle of an electrode of a lithium battery in the nickel plate welding process; and the phenomenon that the nickel sheet is welded askew in the welding process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack processing, in particular to a nickel sheet positioning structure for battery pack processing. Background Art

[0002] Lithium battery packs are generally called lithium-ion battery packs. According to the needs of various industrial customers, lithium-ion single cells are connected in series and in parallel to obtain high-voltage and large-capacity battery packs.

[0003] When spot welding multiple battery cells and nickel sheets, it is necessary to accurately locate the positions of multiple battery cells and nickel sheets, and then perform precise spot welding. If the spot is off, it will cause problems such as battery cold welding or fire. Therefore, a fixture is generally used to fix the battery cells, and then spot welded by a spot welding machine. However, the fixture often needs to open the mold of the spot welding jig in advance according to the product design of the battery module. After the spot welding is completed, the mold needs to be removed, which is not only time-consuming, but also increases a certain development cost. Unreasonable design of tooling and fixtures will also affect the quality and efficiency of spot welding.

[0004] The existing patent (publication number: CN218448359U) discloses a battery pack nickel sheet bracket structure, which specifically relates to the field of lithium battery application technology, including: a first positioning column is arranged in a first nickel sheet groove, and a plurality of first battery cell accommodating grooves are arranged in the first nickel sheet groove; the second bracket is detachably connected to the first bracket, the second positioning column is arranged in the first nickel sheet groove, and a plurality of second battery cell accommodating grooves are arranged in the second nickel sheet groove, and the second battery cell accommodating grooves correspond to the first battery cell accommodating grooves one by one, the second positioning column and the second nickel sheet groove are arranged on a side of the second bracket away from the first bracket, and the first positioning column and the first nickel sheet groove are arranged on a side of the first bracket away from the second bracket; a positioning hole matching the first positioning column or the second positioning column is arranged on the nickel sheet, and a plurality of shunt slot holes are arranged on the nickel sheet at intervals, and both sides of the shunt slot hole are spot welding areas, and the first nickel sheet groove and the second nickel sheet groove are arranged to achieve precise positioning of the battery cell and the nickel sheet, which can not only save manufacturing costs in the production process, but also improve the quality and efficiency of spot welding.

[0005] However, the above technical solution still has certain defects. When the nickel sheet is welded to the lithium battery, the welding position is relatively fixed. During use, the position of the nickel sheet cannot be adjusted according to different usage conditions. As a result, it is impossible to flexibly adapt to different types of lithium batteries and usage scenarios during actual use. For this reason, a battery pack processing nickel sheet positioning structure is proposed. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a nickel sheet positioning structure for battery pack processing to solve the technical problems raised in the above background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery pack processing nickel sheet positioning structure, comprising a fixing mechanism, the top end of which is fixedly connected with two sets of positioning mechanisms;

[0008] The positioning mechanism includes two groups of slide rails, the two groups of slide rails are fixedly connected to the side walls of the fixing mechanism, the outer walls of the two groups of slide rails are respectively slidably sleeved with multiple groups of slide sleeves, a positioning frame is fixedly connected between the two groups of slide sleeves in the same row, the bottom end of the positioning frame is fixedly connected with multiple groups of magnets, the inner wall of the slide sleeve is rotatably connected with a rubber plate, the rubber plate is provided with a torsion spring at the connection with the slide sleeve, the rubber plate is attached to the outer wall of the slide rail, the outer wall of the rubber plate is fixedly connected with a baffle, the inner wall of the slide sleeve is slidably connected with a push rod extending to the outside of the slide sleeve, and one end of the push rod located inside the slide sleeve abuts against the side wall of the baffle.

[0009] As a preferred technical solution for the nickel sheet positioning structure of a battery pack processing of the utility model, the outer wall of the push rod is fixedly connected to a return spring located inside the sliding sleeve, and the end of the return spring is fixedly connected to the inner wall of the sliding sleeve.

[0010] As a preferred technical solution for the nickel sheet positioning structure of a battery pack processing of the utility model, the fixing mechanism includes two groups of support plates, and multiple groups of clamping plates are slidably connected between the two groups of support plates, and the side walls of the clamping plates are provided with rubber gaskets.

[0011] As a preferred technical solution for the nickel sheet positioning structure of a battery pack processing of the utility model, the side wall of the clamping plate is fixedly connected with a first sliding block extending into the interior of the support plate, and the support plate is provided with a sliding groove at the contact position with the first sliding block.

[0012] As a preferred technical solution for the nickel sheet positioning structure for battery pack processing of the utility model, the side wall of the splint is rotatably connected with a rotating rod, and the rotating rod is located between two groups of first sliders on the same side. The top ends of the two adjacent groups of rotating rods are hinged with a group of second sliders, and the outer wall sliding sleeves of multiple groups of the second sliders are provided with push-pull rods.

[0013] As a preferred technical solution for the nickel sheet positioning structure for battery pack processing of the utility model, the top end of the support plate is threadedly connected to a threaded rod, and the bottom end of the threaded rod is rotatably connected to the top end of the push-pull rod.

[0014] As a preferred technical solution for the nickel sheet positioning structure for battery pack processing of the utility model, the side wall of the support plate is fixedly connected to one end of the slide rail, and the top of the clamping plate is provided with a slide groove that matches the magnet.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] 1. The utility model places the nickel sheet inside the positioning frame, fixes the nickel sheet by magnetic attraction through a magnet, and pushes the sliding sleeve to slide on the outer wall of the slide rail to adjust the position of the nickel sheet, so that the nickel sheet can be ensured to be located in the middle of the lithium battery electrode during welding, thereby avoiding the phenomenon of the nickel sheet being welded crooked during welding;

[0017] 2. The utility model rotates the threaded rod so that the threaded rod drives the push-pull rod to move upward or downward, thereby driving multiple groups of clamps to move closer to or away from each other, so that the lithium batteries placed between the multiple groups of clamps can be fixed by the clamps, thereby avoiding the position problem of the lithium batteries during the welding of nickel sheets and improving the accuracy of welding nickel sheets on lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the positioning mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of a partial explosion structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the sliding sleeve of the utility model.

[0022] In the figure: 1. fixing mechanism; 2. positioning mechanism;

[0023] 101, support plate; 102, clamping plate; 103, first slider; 104, slide groove; 105, rubber gasket; 106, rotating rod; 107, second slider; 108, push-pull rod; 109, threaded rod;

[0024] 201, slide rail; 202, slide sleeve; 203, positioning frame; 204, magnet; 205, rubber sheet; 206, baffle; 207, ejector rod; 208, return spring. DETAILED DESCRIPTION

[0025] 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.

[0026] The following describes an embodiment of the utility model based on its overall structure.

[0027] A battery pack processing nickel sheet positioning structure, such as Figures 1 to 4 As shown, it includes a fixing mechanism 1, and the top of the fixing mechanism 1 is fixedly connected with two sets of positioning mechanisms 2;

[0028] The positioning mechanism 2 includes two sets of slide rails 201, which are fixedly connected to the side walls of the fixing mechanism 1. The outer walls of the two sets of slide rails 201 are respectively provided with multiple sets of slide sleeves 202 for sliding. A positioning frame 203 is fixedly connected between the two sets of slide sleeves 202 in the same row. The bottom end of the positioning frame 203 is fixedly connected with multiple sets of magnets 204. The inner wall of the slide sleeve 202 is rotatably connected with a rubber plate 205. The rubber plate 205 is provided with a torsion spring at the connection with the slide sleeve 202. The rubber sheet 205 is attached to the outer wall of the slide rail 201, and the outer wall of the rubber sheet 205 is fixedly connected with a baffle 206. The inner wall of the sleeve 202 is slidably connected with a push rod 207 extending to the outside of the sleeve 202. One end of the push rod 207 located inside the sleeve 202 abuts against the side wall of the baffle 206. The outer wall of the push rod 207 is fixedly connected with a return spring 208 located inside the sleeve 202, and the end of the return spring 208 is fixedly connected to the inner wall of the sleeve 202.

[0029] By placing the cut nickel sheet inside the positioning frame 203, the magnet 204 absorbs the nickel sheet, and then pushes the push rod 207 to compress the return spring 208, so that the push rod 207 pushes the baffle 206, thereby driving the rubber sheet 205 to flip over. At this time, the rubber sheet 205 twists the torsion spring, and the rubber sheet 205 does not contact the slide rail 201. Then, the sliding sleeve 202 is pushed to move on the slide rail 201, so that the sliding sleeve 202 drives the positioning frame 203 to move, thereby driving the nickel sheet to move, so that the nickel sheet moves to the middle of the lithium battery electrode. Then, the push rod 207 is released, so that the return spring 208 rebounds and pushes the push rod 207 to reset. At this time, the torsion spring rebounds and pushes the rubber sheet 205 to flip and reset in the opposite direction, so that the rubber sheet 205 fits the outer wall of the slide rail 201. The friction between the rubber sheet 205 and the slide rail 201 is used to prevent the sliding sleeve 202 from moving arbitrarily on the outer wall of the slide rail 201, thereby realizing the positioning of the nickel sheet.

[0030] Please refer to Figure 1 and Figure 2The fixing mechanism 1 includes two groups of support plates 101, and multiple groups of clamping plates 102 are slidably connected between the two groups of support plates 101. The side walls of the clamping plates 102 are provided with rubber gaskets 105. The side walls of the clamping plates 102 are fixedly connected with first sliders 103 extending into the interior of the support plates 101. The support plates 101 are provided with sliding grooves 104 at the contact positions with the first sliders 103. The side walls of the clamping plates 102 are rotatably connected with rotating rods 106. The rotating rods 106 are located on the two groups of first sliders 103 on the same side. Between a slider 103, a group of second sliders 107 are hinged at the top ends of two adjacent groups of rotating rods 106, and the outer wall sliding sleeves of multiple groups of second sliders 107 are provided with push-pull rods 108. The top end of the support plate 101 is threadedly connected with a threaded rod 109, and the bottom end of the threaded rod 109 is rotatably connected to the top end of the push-pull rod 108. The side wall of the support plate 101 is fixedly connected to one end of the slide rail 201, and the top end of the clamping plate 102 is provided with a slide groove 104 that matches the magnet 204.

[0031] By placing multiple groups of lithium batteries between multiple groups of intermediate plates, and then rotating the threaded rod 109, the threaded rod 109 pulls the push-pull rod 108 upward, thereby driving multiple groups of second sliders 107 to move upward, so that the second sliders 107 pull the rotating rod 106, so that the rotating rod 106 drives multiple groups of clamps 102 to approach each other, and at this time the clamps 102 drive multiple groups of rubber gaskets 105 to approach each other, thereby clamping the lithium batteries to prevent the lithium batteries from being displaced during the welding process and affecting the welding accuracy. After welding, there is no need to separate the nickel sheet positioning mechanism 2 from the lithium battery pack, and the nickel sheet positioning mechanism 2 can be used as a supporting frame for the lithium battery pack, and the nickel sheet is embedded in the positioning frame 203 to prevent the nickel sheet from being squeezed during the use of the lithium battery pack.

[0032] When in use, the nickel sheet is placed inside the positioning frame 203, fixed by magnetic attraction through the magnet 204, and the position of the nickel sheet is adjusted by pushing the sleeve 202 to slide on the outer wall of the slide rail 201, so that the nickel sheet can be ensured to be located in the middle of the lithium battery electrode during the welding process, thereby avoiding the phenomenon of the nickel sheet being welded crooked during the welding process. The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology.

[0033] 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 nickel sheet positioning structure for battery pack processing, comprising a fixing mechanism (1), characterized in that: Two sets of positioning mechanisms (2) are fixedly connected to the top end of the fixing mechanism (1); The positioning mechanism (2) comprises two groups of slide rails (201), the two groups of slide rails (201) are fixedly connected to the side walls of the fixing mechanism (1), the outer walls of the two groups of slide rails (201) are respectively slidably sleeved with multiple groups of slide sleeves (202), a positioning frame (203) is fixedly connected between the two groups of slide sleeves (202) in the same row, the bottom end of the positioning frame (203) is fixedly connected to multiple groups of magnets (204), and the inner wall of the slide sleeve (202) is rotatably connected to a rubber plate (205), a torsion spring is arranged at the connection between the rubber plate (205) and the sliding sleeve (202), the rubber plate (205) is fitted on the outer wall of the sliding rail (201), the outer wall of the rubber plate (205) is fixedly connected with a baffle (206), the inner wall of the sliding sleeve (202) is slidably connected with a push rod (207) extending to the outside of the sliding sleeve (202), and one end of the push rod (207) located inside the sliding sleeve (202) abuts against the side wall of the baffle (206).

2. A battery pack processing nickel sheet positioning structure according to claim 1, characterized in that: The outer wall of the push rod (207) is fixedly connected to a return spring (208) located inside the sliding sleeve (202), and the end of the return spring (208) is fixedly connected to the inner wall of the sliding sleeve (202).

3. A battery pack processing nickel sheet positioning structure according to claim 1, characterized in that: The fixing mechanism (1) comprises two groups of support plates (101), and a plurality of groups of clamping plates (102) are slidably connected between the two groups of support plates (101), and the side walls of the clamping plates (102) are provided with rubber gaskets (105).

4. A battery pack processing nickel sheet positioning structure according to claim 3, characterized in that: A first sliding block (103) extending into the interior of the support plate (101) is fixedly connected to the side wall of the clamping plate (102), and a sliding groove (104) is provided on the support plate (101) at a position in contact with the first sliding block (103).

5. A battery pack processing nickel sheet positioning structure according to claim 3, characterized in that: The side wall of the clamping plate (102) is rotatably connected to a rotating rod (106), and the rotating rod (106) is located between two groups of first sliders (103) on the same side. The top ends of the two adjacent groups of rotating rods (106) are hinged with a group of second sliders (107), and the outer wall sliding sleeves of the multiple groups of the second sliders (107) are provided with push-pull rods (108).

6. A battery pack processing nickel sheet positioning structure according to claim 3, characterized in that: The top end of the support plate (101) is threadedly connected to a threaded rod (109), and the bottom end of the threaded rod (109) is rotatably connected to the top end of the push-pull rod (108).

7. A battery pack processing nickel sheet positioning structure according to claim 3, characterized in that: The side wall of the support plate (101) is fixedly connected to one end of the slide rail (201), and the top end of the clamping plate (102) is provided with a slide groove (104) that matches the magnet (204).

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