CN112259926A - Storage battery end socket structure, storage battery and welding method of storage battery end socket structure - Google Patents
Storage battery end socket structure, storage battery and welding method of storage battery end socket structure Download PDFInfo
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- 238000003466 welding Methods 0.000 title claims abstract description 184
- 238000003860 storage Methods 0.000 title claims abstract description 46
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- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
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- 230000008018 melting Effects 0.000 claims abstract description 12
- 230000006698 induction Effects 0.000 claims description 91
- 239000000945 filler Substances 0.000 claims description 19
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- 229910000679 solder Inorganic materials 0.000 description 4
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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Abstract
The invention discloses a storage battery end socket structure, a storage battery and a welding method of the storage battery end socket structure. The welding post is along upwards extending from top to bottom, and outside the welding post was located to nested spare cover to be formed with the installation clearance between nested spare and welding post, the local electromagnetic induction heating melting that receives of filling connecting material from welding post part and/or nested spare forms, and packs in the installation clearance, in order to link together welding post and nested spare. The invention also provides a welding method for welding the end socket structure of the storage battery by adopting electromagnetic induction, the electromagnetic induction welding is less influenced by human factors, and the welded end socket structure of the storage battery has high welding consistency and good welding quality. Meanwhile, the welding speed is high, and the safety of the welding process is high.
Description
Technical Field
The invention relates to the technical field of storage batteries, in particular to a storage battery end socket structure, a storage battery and a welding method of the storage battery end socket structure.
Background
The secondary battery is generally composed of a plurality of battery packs. The battery includes two terminals for with external circuit intercommunication, and every group battery includes two utmost point posts, allies oneself with the strip and is used for being connected the utmost point post of the homopolar of every group battery and the terminal of homopolar.
In the current production of storage batteries, the post and the connecting strip are heated by oxyhydrogen flame combustion and welded together. The depth of the welding seam obtained by the welding method is greatly influenced by human factors, and the consistency of the welding seam is poor. In addition, the open flame used in the oxyhydrogen flame welding process easily burns plastic structures of the storage battery, such as a shell and a cover body, and influences the appearance of the storage battery or leads to the rejection of the storage battery.
Disclosure of Invention
The invention mainly aims to provide a storage battery end socket structure, a storage battery and a welding method of the storage battery end socket structure, and aims to solve the problem that the consistency of the storage battery end socket welded by oxyhydrogen flame is poor.
In order to achieve the above object, the present invention provides a terminal structure of a storage battery, including:
a welding column extending in the vertical direction; and the number of the first and second groups,
the nested piece is sleeved outside the welding column, and a mounting gap is formed between the nested piece and the welding column; and the number of the first and second groups,
and filling a connecting material, wherein the local part of the welding column and/or the local part of the nesting piece are formed by electromagnetic induction heating and melting, and the connecting material is filled in the mounting gap.
Optionally, the upper ends of the welding columns and/or the nest are heated and melted by electromagnetic induction to form the filling connection material.
Optionally, the mounting gap is tapered from top to bottom.
Optionally, the upper port of the nest is arranged in a chamfer; and/or the presence of a gas in the gas,
the welding post is the step setting, the welding post includes along the less post material section of diameter and the great body section of diameter that distributes in proper order from top to bottom, the melting of post material section forms the filling connection material.
The invention also provides a storage battery, which comprises the storage battery end head structure.
The invention also provides a welding method of the storage battery end head structure, which comprises the following steps:
providing a welding column and a nesting piece, wherein the nesting piece is sleeved outside the welding column, the welding column extends in the vertical direction, and a mounting gap is formed between the welding column and the nesting piece;
providing electromagnetic induction welding equipment, wherein the electromagnetic induction welding equipment comprises a power supply device and an induction coil which is coiled along an up-down axis, and the power supply device is electrically connected with the induction coil;
moving the induction coil to a position adjacent to the weld stud such that the induction coil is disposed in correspondence with the weld stud and/or the nest;
controlling the power supply device to supply current to the induction coil, so that the local part of the welding column and/or the local part of the nested piece are heated and melted by electromagnetic induction to form a filling connecting material, and the filling connecting material flows and is filled in the mounting gap;
and after the filling connecting material reaches the preset capacity, controlling the power supply device to stop introducing current into the induction coil.
Optionally, the step of moving the induction coil to a position adjacent to the welding stud comprises:
moving the induction coil over the weld stud;
and adjusting the up-down position of the induction coil so that the distance between the lower surface of the induction coil and the upper surface of the welding column is within a preset distance.
Optionally, the preset distance is H, and H is greater than or equal to 4mm and less than or equal to 8 mm.
Optionally, the current value of the current introduced into the induction coil by the power supply device is I, and I is greater than or equal to 100A and less than or equal to 200A.
Optionally, after the step of controlling the power supply device to stop supplying current to the induction coil after the filling connection material reaches the preset capacity, the method further includes:
and detecting the molding quality of the filling connecting material.
According to the technical scheme, the invention provides the storage battery end head structure suitable for being welded by electromagnetic induction, and the storage battery end head structure is characterized in that a nesting piece is sleeved outside a welding column so as to form a mounting gap in the circumferential direction of the welding column. When electromagnetic induction heating is used for the welding, can produce a large amount of filler link material in the short time, this installation clearance provides sufficient space and holds these filler link materials to make these filler link materials flow along the circumference of welding post in the installation clearance, with the comparatively even filler link material that solidifies of formation along welding post circumference distribution. The storage battery end structure provided by the invention is suitable for electromagnetic induction welding, the electromagnetic induction welding is less influenced by human factors, and the welded storage battery end structure has high welding consistency and good welding quality. Meanwhile, the welding speed is high, and the safety of the welding process is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a storage battery provided by the present invention;
fig. 2 is a schematic flow chart illustrating a method for welding the terminal structure of the battery according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of step 30 in fig. 2.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Accumulator terminal structure | 3 | Mounting gap |
| 1 | Welding column | 4 | |
| 11 | |
5 | |
| 2 | Nesting piece | 6 | |
| 21 | Guide slope | ||
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In order to solve the problem of poor consistency of the end of the storage battery welded by oxyhydrogen flame, the invention provides a storage battery end structure 100 which is suitable for electromagnetic induction welding. Fig. 1 is a schematic structural diagram of an embodiment of a battery provided in the present invention. Referring to fig. 1, the battery includes a cover 4 and a battery end structure 100, a receiving hole is formed through an upper end surface of the cover 4, and the battery end structure 100 is disposed in the receiving hole. Battery end structure 100 includes weld posts 1, nest 2, and filler connectors. Welding post 1 is along extending from top to bottom, and nested 2 covers are located outside welding post 1 to be formed with installation clearance 3 between nested 2 and welding post 1, the local electromagnetic induction heating melting that receives of filling connector from welding post 1 part and/or nested 2 part forms, and packs in installation clearance 3, in order to link together welding post 1 and nested 2. It should be noted that the welding column 1 is a partial structure of a pole, the nested piece 2 is a partial structure of a connecting bar, and the welding column 1 and the nested piece 2 are welded to connect the pole and the connecting bar.
The principle of electromagnetic induction heating is as follows: a workpiece to be welded is placed in the induction coil 5 or around the induction coil 5, when alternating current passes through the induction coil 5, an alternating magnetic field with the same frequency as a circuit is generated in the induction coil 5 and around the induction coil, magnetic lines of the alternating magnetic field cut the workpiece to be welded, eddy current is generated in the workpiece to be welded, and the direction of the eddy current is opposite to the direction of the introduced power supply current. The eddy current causes the resistance of the workpiece to be welded to generate joule heat, which raises the temperature of the workpiece to be welded. The electromagnetic induction heating is characterized by large heating range and large heating depth
In the invention, a storage battery end socket structure 100 suitable for welding by electromagnetic induction is provided, wherein a nesting piece 2 is adopted in the storage battery end socket structure 100 to be sleeved outside a welding column 1 so as to form a mounting gap 3 in the circumferential direction of the welding column 1. When electromagnetic induction heating is used for welding battery utmost point post end structure 100, can produce a large amount of filler coupling material in the short time, this installation clearance 3 provides sufficient space and holds these filler coupling materials to make these filler coupling materials flow along the circumference of welding post 1 in installation clearance 3, with the formation along the comparatively even filler coupling material that solidifies of 1 circumference distribution of welding post. The storage battery end structure 100 provided by the invention is suitable for electromagnetic induction welding, the influence of human factors on the electromagnetic induction welding is small, and the welded storage battery end structure 100 is high in welding consistency and good in welding quality. Meanwhile, the welding speed is high, and the safety of the welding process is high.
It should be noted that the installation position of the induction coil 5 is not limited in the present invention. In one embodiment, the induction coil 5 is sleeved outside the nesting component 2 and extends into the accommodating hole. In this embodiment, the induction coil 5 is suspended above the storage battery end structure 100, so that the operation difficulty of electromagnetic induction welding can be reduced, and the influence of human factors can be reduced.
Electromagnetic induction heating has the basic features of skin effect and proximity effect. The skin effect means that in high frequency heating, the current is the largest at the surface of the part, the heating is the fastest, and the current is the smallest in the center of the part. The proximity effect causes currents to flow in opposite directions in two adjacent conductors, and the current density is the greatest on the inner side of the conductors. In the induction heating, the current in the workpiece to be welded and the current in the induction coil 5 are opposite in direction, and the current density is the largest on the side of the workpiece to be welded facing the induction coil 5.
In this embodiment, when the battery end structure 100 is welded by electromagnetic induction, the induction coil 5 is suspended above the battery end structure 100, an alternating current with a certain frequency is introduced into the induction coil 5, and eddy currents are generated in the welding column 1 and the nesting member 2, and are mainly concentrated at the upper ends of the welding column 1 and the nesting member 2 according to the skin effect and the proximity effect. The upper ends of the welding column 1 and the nested piece 2 are heated and melted by electromagnetic induction to form a filling connecting material, the filling connecting material flows into the installation gap 3, and connection is formed after cooling and solidification. Compared with oxyhydrogen flame welding, the electromagnetic induction welding is adopted to only locally heat the end of the storage battery, so that plastic parts such as the cover body 4 and the like can be prevented from being burnt; simultaneously, remove frock such as installation plastics protective sheath from to improve production efficiency greatly.
It should be noted that the size of the induction coil 5 affects the melting of the welding stud 1 and the nest 2, and when the induction coil 5 is small and is disposed only above the welding stud 1, only the upper end of the welding stud 1 is heated and melted by induction, and the nest 2 cannot be melted because of a low temperature due to a small eddy current generated therein. Similarly, when the size of the induction coil 5 is set only above the nest 2, only the upper end of the nest 2 is induction-heated to be melted. In this embodiment, it is preferred that the diameter of the induction coil 5 is similar to the diameter of the solder post 1, for example, if the diameter of the solder post 1 to be soldered is 16-20mm, the diameter of the induction coil 5 is preferably in the range of 12-18 mm, so that the solder post 1 and the inside of the nest 2 are preferentially melted, and the phenomenon that the filled solder overflows due to too fast melting of the outside of the nest 2 is avoided.
The electromagnetic induction welding utilizes the upper ends of the welding column 1 and the nesting piece 2 to be melted and then flows into the mounting gap 3, and the connection is formed after the welding column and the nesting piece are cooled and solidified in the mounting gap 3. The width of the mounting gap 3 is one of the important factors affecting the welding effect. The installation gap 3 is too small, and the filling connecting material cannot enter the installation gap 3 under the action of surface tension; installation clearance 3 is too big, and continuous downward flow takes place simultaneously to solidify after the filler link material gets into installation clearance 3, leads to filler link material along 1 circumference uneven distributions of welding post, and welding quality is poor.
For improving welding quality, in this embodiment, the installation gap 3 is the convergent setting from top to bottom, and the upper port department of installation gap 3, the width is great, makes the filling connecting material enter into installation gap 3 easily. Mounting gap 3 top-down is the convergent setting, when reducing gradually to a certain width along with mounting gap 3, the filler link material can't continue to enter into mounting gap 3, and at this moment, the filler link material flows along 1 circumference of welding post, fills up mounting gap 3 more than this width gradually, after removing induction coil 5, the filler link material solidifies in mounting gap 3 more than this width, forms along 1 circumference of welding post evenly distributed, and the better solidification filler link material of welding quality. When the same mounting gap 3 is provided between each welding post 1 to be welded and the nest 2, it can be ensured that the battery end structure 100 has high welding consistency.
The specific implementation form of the present invention that the installation gap 3 is tapered from top to bottom is not limited, and in this embodiment, the upper port of the nest 2 is chamfered. The chamfer structure forms a guide ramp 21 extending downwardly and inwardly from the upper surface of the nest 2 to the side wall surface. When the upper end of the nest 2 is melted, the molten lead flows around, and only part of the molten lead flows into the mounting gap 3. The chamfer structure is arranged, on one hand, the guide inclined plane 21 is utilized to guide the filling connecting material generated by melting the upper end of the nesting piece 2 to flow inwards to the mounting gap 3, the filling connecting material in the mounting gap 3 is increased, and the welding uniformity is improved; on the other hand, the guide slope 21 is disposed toward the induction coil 5, and the increase in eddy current density at the guide slope 21 causes the guide slope 21 to melt to form a molten pool, making the connection of the filled connector and the nest 2 more reliable.
In addition, welding post 1 is the step setting, and welding post 1 includes along the less column material section 11 of diameter and the great body section of diameter that distributes in proper order from top to bottom, and the fusion of column material section 11 forms the filling connecting material. The diameter of the column material section 11 is small, the width of the installation gap 3 is widened, and the filling connecting material can conveniently flow into the installation gap 3. The up end department of this body section sets up towards induction coil 5, and the increase of body section up end department eddy current density promotes the melting of body section up end and forms the molten bath, makes the connection of filling connecting material and welding post 1 more reliable.
Further, when the continuous melting of the upper end of nested 2 and post material section 11 is filled to installation gap 3 after, body section constantly rises to the up end parallel and level with welding post 1, stops induction heating after, the filler link solidifies, and body section and welding post 1's up end are the parallel and level setting, promptly, and welding post 1's up end presents for a plane, makes the battery end structure 100 outward appearance after the welding comparatively pleasing to the eye.
In addition, the inner wall surface of the nest 2 and/or the outer side surface of the welding column 1 are provided with conical surfaces, which is beneficial for the filled connecting material to flow downwards along the inner wall surface of the nest 2 and/or the outer side surface of the welding column 1, in the embodiment, the inner wall surface of the nest 2 and the outer side surface of the welding column 1 are both provided with conical surfaces, which can promote the filled connecting material formed by melting the upper ends of the welding column 1 and the nest 2 to flow downwards to the mounting gap 3.
In order to ensure the welding uniformity, the central axis of the welding column 1 and the central axis of the nesting piece 2 are positioned on the same straight line, so that the width of the mounting gap 3 is the same everywhere, and the filling connection material is promoted to be uniformly filled along the circumferential direction of the welding column 1, thereby improving the welding quality.
It should be noted that the material of the welding column 1 and the nesting member 2 is not limited in the present invention, and the material commonly used for the end structure of the storage battery is included in the protection scope of the present invention, such as copper, copper alloy, lead, and lead-based alloy. In this embodiment, the welding column 1 and the nesting member 2 are made of lead.
It should also be noted that batteries including the disclosed battery terminal structure 100 are within the scope of the present invention.
The invention also provides a welding method of the storage battery end structure, which is used for welding the storage battery end structure 100. Referring to fig. 2, fig. 2 is a schematic flow chart illustrating an embodiment of a welding method of the battery terminal structure 100 according to the present invention. The method of welding the battery end structure 100 includes the steps of:
s10, providing a welding column 1 and a nested piece 2, wherein the nested piece 2 is sleeved outside the welding column 1, the welding column 1 extends in the vertical direction, and a mounting gap 3 is formed between the welding column 1 and the nested piece 2;
s20, providing electromagnetic induction welding equipment, wherein the electromagnetic induction welding equipment comprises a power supply device and an induction coil 5 coiled along an up-down axis, and the power supply device is electrically connected with the induction coil 5;
s30, moving the induction coil 5 to the adjacent position of the welding column 1, so that the induction coil 5 is arranged corresponding to the welding column 1 and/or the nest 2;
s40, controlling the power supply device to supply current to the induction coil 5, so that the local part of the welding column 1 and/or the local part of the nest 2 are heated and melted by electromagnetic induction to form a filling connecting material, wherein the filling connecting material flows and is filled in the installation gap 3;
and S50, controlling the power supply device to stop supplying current to the induction coil 5 after the filling connecting material reaches the preset capacity.
In the invention, the storage battery end structure 100 is welded by adopting electromagnetic induction welding equipment, the electromagnetic induction welding is less influenced by human factors, the welding consistency is good, and the welding quality is more stable. By reasonably controlling the electromagnetic induction welding parameters, only the local heating of the storage battery end structure 100 can avoid burning plastic parts such as the cover body 4. Electromagnetic induction welding speed is fast, and removes frock such as installation plastics protective sheath from to improve production efficiency greatly. In addition, the electromagnetic induction welding process is high in safety.
It should be noted that the operation body of the welding method of the battery end structure 100 may be an operator, or may be a mechanical device composed of a control device and a moving device, such as a computer mainframe and a robot, wherein the moving device is connected to the induction coil 5 and the battery end structure 100. The control device is electrically connected to the moving device, and is used for controlling the moving device to move the induction coil 5 and the battery end structure 100. The control device is electrically connected with the power supply device and used for controlling the power supply device.
When welding is started, the control device controls the moving device to move the welding column 1 and the nested piece 2 to the designated positions; secondly, the control device controls the moving device to move the induction coil 5 to the position adjacent to the welding column 1; thirdly, the control device controls the power supply device to supply current to the induction coil 5; and fourthly, after the filling connecting material reaches the preset capacity, the control device controls the power supply device to stop supplying current to the induction coil 5.
It should be noted that, the judgment of whether the filling binder reaches the predetermined volume is based on whether good molding quality can be obtained. In this embodiment, when the mounting gap 3 between the welded column 1 and the nest 2 is filled with the filled connecting material and the upper end surface of the body section and the welded column 1 is flush, it is determined that the filled connecting material reaches the predetermined capacity.
Further, the step of moving the induction coil 5 to the adjacent position of the welding stud 1 includes:
s301, moving the induction coil 5 to the position above the welding column 1;
s302, adjusting the up-down position of the induction coil 5, so that the distance between the lower surface of the induction coil 5 and the upper surface of the welding column 1 is within a preset distance.
According to the principle of electromagnetic induction welding, when the induction coil 5 is far away from the workpiece to be welded, the strength of an alternating magnetic field in the workpiece to be welded is weak, the current value of eddy current generated in the workpiece to be welded is small, the generated joule heat is small, and therefore the induction heating effect is poor and the heating speed is low. When the distance between the induction coil 5 and the workpiece to be welded is short, the ignition phenomenon is easy to occur between the induction coil and the workpiece to be welded, and the induction coil is damaged. Therefore, the induction coil 5 should be disposed within a certain distance above the welding stud 1 to obtain a good heating effect.
Preferably, the preset distance is H, and H is more than or equal to 4mm and less than or equal to 8 mm. Within this distance, the induction coil 5 is able to heat the weld stud 1 and the upper end of the nest 2 quickly. Meanwhile, the induction coil 5 can be protected, and the service life of the induction coil 5 is prolonged.
It should be noted that, in order to ensure that the distance between the lower surface of the induction coil 5 and the upper surface of the welding column 1 is the same during each welding, the electromagnetic induction welding device further includes a sleeve 6, which is sleeved outside the induction coil 5, and the lower surface of the sleeve 6 is located below the lower surface of the induction coil 5. When welding, the sleeve 6 and the induction coil 5 are arranged above the welding column 1, wherein the lower surface of the sleeve 6 is pressed on the upper surface of the cover body 4, so that the induction coil 5 is suspended above the welding column 1, and the distance between the lower surface of the induction coil 5 and the upper surface of the welding column 1 is within a preset distance. Adopt sleeve 6 to carry out spacingly, can guarantee that the interval between the up end of welding post 1 and the lower terminal surface of induction coil 5 is the same when welding at every turn to guarantee the welded uniformity.
Further, in order to uniformly heat the upper ends of the welding column 1 and the nest 2 to simultaneously produce the filling connection material in the circumferential direction of the welding column 1, the position of the induction coil 5 in the horizontal direction should be adjusted so that the central axis of the induction coil 5 and the central axis of the welding column 1 are positioned on the same straight line. In this way, the filler binder can be uniformly filled in the circumferential direction of the weld column 1.
The power supply device is used for providing high-frequency or medium-frequency alternating current in the induction coil 5, and when the electric current was too big, rate of heating was too fast, and welding post 1 and nested 2 melt too fast and lead to the filled connector to be excessive all around, and the shaping quality is relatively poor, and when the electric current was less, rate of induction heating was too slow. The verification proves that the current value of the current introduced into the induction coil 5 by the power supply device is I, when the I is more than or equal to 100A and less than or equal to 200A, a better induction heating effect can be obtained, the welding quality is ensured, and meanwhile, better welding efficiency is obtained.
It should be noted that the power supply device includes a power supply and a power supply control system, the power supply is electrically connected to the induction coil 5 and is configured to provide current to the induction coil 5, and the power supply control system is electrically connected to the power supply and is configured to control the power supply to generate current meeting the current value.
It should be noted that, after the filling connection material reaches the preset volume, the power supply device is controlled to stop supplying current to the induction coil, the welding column 1 should be kept still, and after the filling connection material is solidified, the welding column 1 is moved to prevent the molding quality from being damaged.
In this embodiment, after the step of controlling the power supply device to stop supplying current to the induction coil 5 after the filling connection material reaches the preset capacity, the method further includes:
and S60, detecting the molding quality of the filling connecting material.
The battery end structure 100 functions as an electrical connection battery pack and a terminal, and in order to ensure good electrical connection, the molding quality of the filling connection material needs to meet the standard, and therefore, after the welding is completed, the molding quality of the filling connection material needs to be detected, including the detection of the filling depth. The detection equipment can be a welding line ray detector, a welding line ultrasonic detector and the like. After the molding quality of the filling connecting material is measured, if the molding quality does not reach the standard, for example, the filling depth does not reach the standard or a large hole exists, the forming is judged to be an unqualified piece, and rework is performed. And the reworking mode comprises the step of continuously heating by adopting electromagnetic induction welding equipment until the molding quality of the filling connecting material meets the requirement.
It should be noted that, in the present embodiment, only an example of welding one battery terminal structure 100 by the electromagnetic induction welding apparatus is given. In another embodiment, the battery induction welding apparatus includes a plurality of induction coils 5 for simultaneously welding a plurality of battery end structures 100 to improve welding efficiency, thereby improving assembly efficiency of the battery.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A battery terminal structure, comprising:
a welding column extending in the vertical direction; and the number of the first and second groups,
the nested piece is sleeved outside the welding column, and a mounting gap is formed between the nested piece and the welding column; and the number of the first and second groups,
and filling a connecting material, wherein the local part of the welding column and/or the local part of the nesting piece are formed by electromagnetic induction heating and melting, and the connecting material is filled in the mounting gap.
2. The battery terminal structure of claim 1, wherein the weld posts and/or the upper ends of the nests are melted by electromagnetic induction heating to form the filler binder.
3. The battery terminal structure of claim 2, wherein the mounting gap tapers from top to bottom.
4. The battery terminal structure of claim 3, wherein the upper port of the nest is chamfered; and/or the presence of a gas in the gas,
the welding post is the step setting, the welding post includes along the less post material section of diameter and the great body section of diameter that distributes in proper order from top to bottom, the melting of post material section forms the filling connection material.
5. A battery comprising a battery terminal structure according to any one of claims 1 to 4.
6. A method for welding an end structure of a storage battery is characterized by comprising the following steps:
providing a welding column and a nesting piece, wherein the nesting piece is sleeved outside the welding column, the welding column extends in the vertical direction, and a mounting gap is formed between the welding column and the nesting piece;
providing electromagnetic induction welding equipment, wherein the electromagnetic induction welding equipment comprises a power supply device and an induction coil which is coiled along an up-down axis, and the power supply device is electrically connected with the induction coil;
moving the induction coil to a position adjacent to the weld stud such that the induction coil is disposed in correspondence with the weld stud and/or the nest;
controlling the power supply device to supply current to the induction coil, so that the local part of the welding column and/or the local part of the nested piece are heated and melted by electromagnetic induction to form a filling connecting material, and the filling connecting material flows and is filled in the mounting gap;
and after the filling connecting material reaches the preset capacity, controlling the power supply device to stop introducing current into the induction coil.
7. The method of welding battery terminal structures of claim 6, wherein said step of moving said induction coil to a position adjacent said weld stud comprises:
moving the induction coil over the weld stud;
and adjusting the up-down position of the induction coil so that the distance between the lower surface of the induction coil and the upper surface of the welding column is within a preset distance.
8. The method of welding an end cap structure for a battery of claim 7, wherein the predetermined distance is H, and H is 4mm or less and 8mm or less.
9. The method of welding an end cap structure of a battery of claim 6, wherein said power supply unit applies a current to said induction coil at a value of I, and I is 100A or more and I is 200A or less.
10. The method of welding an end terminal structure of a battery of claim 6, wherein said step of controlling said power supply to stop applying current to said induction coil after said filler binder reaches a predetermined capacity further comprises:
and detecting the molding quality of the filling connecting material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115425366A (en) * | 2022-07-01 | 2022-12-02 | 岳阳耀宁新能源科技有限公司 | Method for welding composite current collector tab |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1145699A (en) * | 1997-07-29 | 1999-02-16 | Shin Kobe Electric Mach Co Ltd | Terminal forming method for lead acid battery |
| JP2001307714A (en) * | 2000-04-19 | 2001-11-02 | Matsushita Electric Ind Co Ltd | Lead storage battery and its manufacturing method |
| EP1347522A1 (en) * | 2002-03-20 | 2003-09-24 | I.C.S. Industria Composizioni Stampate S.p.A. | A connector terminal for a battery |
| US20150079446A1 (en) * | 2013-09-16 | 2015-03-19 | Samsung Sdi Co., Ltd. | Rechargeable battery having pillar terminal and battery module using the same |
| CN107695503A (en) * | 2017-08-18 | 2018-02-16 | 浙江金麦特自动化系统有限公司 | A kind of battery terminal high frequency induction welding method |
| EP3361527A1 (en) * | 2017-02-14 | 2018-08-15 | Contemporary Amperex Technology Co., Limited | Power battery top cap structure |
| US20190067728A1 (en) * | 2017-08-31 | 2019-02-28 | Samsung Sdi Co., Ltd. | Secondary battery |
| CN213460007U (en) * | 2020-10-10 | 2021-06-15 | 荷贝克电源系统（武汉）有限公司 | Storage battery end structure and storage battery |
-
2020
- 2020-10-10 CN CN202011081240.0A patent/CN112259926A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1145699A (en) * | 1997-07-29 | 1999-02-16 | Shin Kobe Electric Mach Co Ltd | Terminal forming method for lead acid battery |
| JP2001307714A (en) * | 2000-04-19 | 2001-11-02 | Matsushita Electric Ind Co Ltd | Lead storage battery and its manufacturing method |
| EP1347522A1 (en) * | 2002-03-20 | 2003-09-24 | I.C.S. Industria Composizioni Stampate S.p.A. | A connector terminal for a battery |
| US20150079446A1 (en) * | 2013-09-16 | 2015-03-19 | Samsung Sdi Co., Ltd. | Rechargeable battery having pillar terminal and battery module using the same |
| EP3361527A1 (en) * | 2017-02-14 | 2018-08-15 | Contemporary Amperex Technology Co., Limited | Power battery top cap structure |
| CN107695503A (en) * | 2017-08-18 | 2018-02-16 | 浙江金麦特自动化系统有限公司 | A kind of battery terminal high frequency induction welding method |
| US20190067728A1 (en) * | 2017-08-31 | 2019-02-28 | Samsung Sdi Co., Ltd. | Secondary battery |
| CN213460007U (en) * | 2020-10-10 | 2021-06-15 | 荷贝克电源系统（武汉）有限公司 | Storage battery end structure and storage battery |
Non-Patent Citations (1)
| Title |
|---|
| 上海科学技术情报研究所编: "《金属加工专利文摘》", 上海科学技术文献出版社, pages: 144 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115425366A (en) * | 2022-07-01 | 2022-12-02 | 岳阳耀宁新能源科技有限公司 | Method for welding composite current collector tab |
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