CN219786875U - Welding assembly system of special PTC element of battery - Google Patents

Abstract

The utility model relates to a welding assembly system of a PTC element special for a battery, which comprises a welding device, a nickel strap feeding device, a chip feeding device and a cutting device, wherein the welding device comprises a positioning jig, a solder releaser and a heater, the discharging end of the solder releaser is positioned above the positioning jig and is used for releasing solder towards the positioning jig, the heater is arranged at the positioning jig, the heating end is used for heating the positioning jig, and the positioning jig is provided with a first nickel strap welding groove, a chip welding groove and a second nickel strap welding groove which are sequentially reduced in depth; the nickel belt feeding device comprises at least two guide rails and is respectively positioned at two sides of the positioning jig; the chip feeding device is used for moving the chip into the chip welding groove; the cutting device comprises at least two cutting knives and is respectively positioned at the two guide rails. The system can control the length of the cut nickel strap according to the requirements of customers, does not need to replace a welding template, avoids the possibility of double nickel straps at two ends of a chip, and improves the product quality of the PTC element special for the battery.

Description

Welding assembly system of special PTC element of battery

Technical Field

The utility model relates to the technical field of preparation of PTC elements special for batteries, in particular to a welding and assembling system of the PTC elements special for batteries.

Background

The PTC is a positive temperature coefficient heat-sensitive element, positive temperature coefficient (Positive Temperature Coefficient, PTC for short), the PTC element has conductivity, has resistance step characteristic in a certain temperature interval, is manufactured into various packaged elements and is widely used for overcurrent protection and overheat protection of an electronic circuit, and the special PTC element for the battery is an electronic element with a dislocation sandwich structure, which is formed by laminating and welding an upper nickel strap, a lower nickel strap and a middle chip, and has the advantages of simple structure, small size, thickness less than 1mm and thickness of nickel straps at two ends less than 0.3mm.

At present, a special PTC element for a battery needs to be manufactured by cutting a nickel strap into single small pieces in advance, then a welding template is designed in advance according to the length of a PTC product required by a customer, then upper and lower nickel straps are brushed with solder, and the middle chip is positioned and stacked sequentially through the welding template, and then the solder is melted through a reflow oven by the whole template, so that the welding is carried out

However, each time the length of the nickel strap of the customer is changed, the welding template needs to be redesigned, so that the personalized customization is inconvenient, the flexibility is extremely inflexible, and the investment is large; and moreover, when sheets are arranged, the possibility that double sheets are stacked easily due to adsorption action, so that double nickel belts at two ends of the element are generated, and the double nickel belts can cause poor open circuit of outgoing lines when a customer uses the double nickel belts.

Disclosure of Invention

The utility model aims to provide a welding and assembling system of a PTC element special for a battery, which can flexibly cut the length of a nickel strap according to the requirements of customers, does not need to replace a welding template, avoids the possibility of double nickel straps at two ends of a chip, and improves the product quality of the PTC element special for the battery.

To this end, an embodiment of the present utility model provides a welding assembly system of a battery-dedicated PTC element including a first nickel strap, a chip, and a second nickel strap, the welding assembly system comprising: the welding device comprises a positioning jig, a solder releaser and a heater, wherein the solder releaser is positioned above the positioning jig and is used for releasing solder towards the positioning jig, the heater is arranged at the positioning jig, the heating end of the heater is used for heating the positioning jig, the positioning jig is provided with a first nickel strap welding groove, a chip welding groove and a second nickel strap welding groove, the depth of the first nickel strap welding groove, the chip welding groove and the second nickel strap welding groove is sequentially reduced, and the first nickel strap welding groove and the second nickel strap welding groove are respectively positioned at two sides of the chip welding groove; the nickel strap feeding device comprises at least two guide rails which are respectively positioned at two sides of the positioning jig, one guide rail is used for conveying a first nickel strap and is communicated with the first nickel strap welding groove, and the other guide rail is used for conveying a second nickel strap and is communicated with the second nickel strap welding groove; the chip feeding device is arranged at the side of the positioning jig and is used for moving the chip into the chip welding groove; the cutting device comprises at least two cutting knives and is respectively positioned at the two guide rails, one cutting knife is used for cutting the first nickel strap, and the other cutting knife is used for cutting the second nickel strap.

In one possible implementation, the welding device further includes a compactor including a plurality of sets of compaction positioning probes that reciprocate toward the positioning jig to compact the first nickel strap, the chip, and the second nickel strap.

In one possible implementation, the solder releaser is further provided with a sensor, the sensing end of which is directed towards the positioning jig.

In one possible implementation, the heater is at least one of a heat gun, a heating iron, and a vortex heater.

In one possible implementation manner, the device further comprises two fixing brackets, wherein the two fixing brackets are respectively used for fixing the reel of the first nickel strap and the reel of the second nickel strap, and the fixing brackets are positioned on one side, away from the positioning jig, of the guide rail and are arranged at intervals of the guide rail.

In one possible implementation manner, the nickel strap feeding device further comprises a tension sensor, wherein the tension sensor is located between the fixing support and the guide rail, and an induction part of the tension sensor is used for abutting against the first nickel strap or the second nickel strap.

In one possible implementation, the nickel strap feeding device further includes a straightening leveler, the straightening leveler is located between the tension sensor and the guide rail, and the straightening leveler includes at least two clamping rollers, and the two clamping rollers are used for clamping and leveling the first nickel strap or the second nickel strap.

In one possible implementation manner, the guide rail is provided with a guide rail groove which is adapted to the first nickel strap or the second nickel strap, a feeding roller is rotationally connected in the guide rail groove, and the nickel strap feeding device further comprises a first driving component, wherein the first driving component is used for driving the feeding roller to rotate.

In one possible implementation manner, a bottom wheel and a second driving component for driving the bottom wheel to rotate are further arranged below the guide rail, and the second driving component is in signal connection with the control device.

In one possible implementation manner, the battery welding device further comprises a blanking device in signal connection with the control device, wherein the blanking device is arranged beside the positioning jig and is used for outputting the welded battery special PTC element.

According to the welding assembly system of the special PTC element for the battery, which is provided by the embodiment of the utility model, the special PTC element for the battery comprises a first nickel strap, a chip and a second nickel strap, the welding assembly system comprises a welding device, a nickel strap feeding device, a chip feeding device and a cutting device, the welding device comprises a positioning jig, a solder releaser and a heater, the discharging end of the solder releaser is positioned above the positioning jig and is used for releasing solder towards the positioning jig, the heater is arranged at the positioning jig and is used for heating the positioning jig, the positioning jig is provided with a first nickel strap welding groove, a chip welding groove and a second nickel strap welding groove, the depth of the first nickel strap welding groove and the second nickel strap welding groove is sequentially reduced, and the first nickel strap welding groove and the second nickel strap welding groove are respectively positioned at two sides of the chip welding groove; the nickel strap feeding device comprises at least two guide rails positioned on two sides of the positioning jig, one guide rail is used for conveying a first nickel strap and is communicated with the first nickel strap welding groove, and the other guide rail is used for conveying a second nickel strap and is communicated with the second nickel strap welding groove; the chip feeding device is arranged at the side of the positioning jig and is used for moving the chip into the chip welding groove; the cutting device comprises at least two cutting knives and is respectively positioned at the two guide rails, one cutting knife is used for cutting the first nickel strap, and the other cutting knife is used for cutting the second nickel strap. The welding assembly system for the PTC element special for the battery is characterized in that the first nickel strap, the chip and the second nickel strap are respectively placed in the first nickel strap welding groove, the chip welding groove and the second nickel strap welding groove of the positioning jig in a stacked mode, then compacting, heating and welding are carried out, the first nickel strap and the second nickel strap are cut off through the cutting device according to the requirements of customers after welding, the positioning jig can be reused, special customization is not needed according to different nickel strap lengths, welding cost is reduced, and the phenomenon that double layers of the first nickel strap or the second nickel strap are arranged at two ends of the chip is avoided through the welding assembly system provided by the utility model, and product quality is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. In addition, in the drawings, like parts are designated with like reference numerals and the drawings are not drawn to actual scale.

Fig. 1 is a schematic view showing the structure of a PTC element for a battery according to the present utility model;

fig. 2 shows a top plan view of the welding assembly system of the battery-specific PTC element and nickel strap of the present utility model;

fig. 3 shows a top plan view of a layout of a welding assembly system of the battery-specific PTC element of the present utility model;

fig. 4 is a layout elevation view showing a welding assembly system of the PTC element dedicated to the battery of the present utility model;

fig. 5 shows a cross-sectional view of the positioning jig of the present utility model.

Reference numerals illustrate:

1. PTC element special for battery; 11. a first nickel strap; 12. a chip; 13. a second nickel strap; 2. a welding device; 21. positioning jig; 211. a first nickel strap welding groove; 212. a chip soldering groove; 213. a second nickel strap welding groove; 22. a solder releaser; 221. a sensor; 23. a compactor; 24. a heater; 3. a nickel belt feeding device; 31. a guide rail; 311. a guide rail groove; 312. a feed roller; 313. a bottom wheel; 32. a tension sensor; 33. straightening the leveler; 4. chip loading device; 5. a cutting device; 51. a cutter; 6. a control device; 8. a fixed bracket; 9. and a blanking device.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Fig. 1 shows a schematic structure of a PTC element for a battery of the present utility model, fig. 2 shows a plan view of a welding assembly system of the PTC element for a battery of the present utility model and a nickel strap, fig. 3 shows a plan view of a welding assembly system of the PTC element for a battery of the present utility model, fig. 4 shows a front view of a welding assembly system of the PTC element for a battery of the present utility model, and fig. 5 shows a cross-sectional view of a positioning jig of the present utility model.

As shown in fig. 1 to 5, an embodiment of the present utility model provides a welding assembly system of a battery-dedicated PTC element for assembling a battery-dedicated PTC element 1, the battery-dedicated PTC element 1 including a first nickel strap 11, a chip 12, and a second nickel strap 13. The welding assembly system comprises a welding device 2, a nickel strap feeding device 3, a chip feeding device 4, a cutting device 5 and a control device 6. The welding device 2 comprises a positioning jig 21, a solder releaser 22 and a heater 24, wherein the discharge end of the solder releaser 22 is positioned above the positioning jig 21 and used for releasing solder towards the positioning jig 21, the heating end of the heater 24 is used for heating the positioning jig 21, the positioning jig 21 is provided with a first nickel strap welding groove 211, a chip welding groove 212 and a second nickel strap welding groove 213, the depths of which are sequentially reduced, and the first nickel strap welding groove 211 and the second nickel strap welding groove 213 are respectively positioned at two sides of the chip welding groove 212; the nickel strap feeding device 3 comprises at least two guide rails 31 which are respectively positioned at two sides of the positioning jig 21, one guide rail 31 is used for conveying the first nickel strap 11 and is communicated with the first nickel strap welding groove 211, and the other guide rail 31 is used for conveying the second nickel strap 13 and is communicated with the second nickel strap welding groove 213; the chip feeding device 4 is arranged at the side of the positioning jig 21, and the chip feeding device 4 is used for moving the chip 12 into the chip welding groove 212; the cutting device 5 comprises at least two cutting knives 51 and is respectively positioned at the two guide rails 31, one cutting knife 51 is used for cutting the first nickel strap 11, and the other cutting knife 51 is used for cutting the second nickel strap 13; the control device 6 is in signal connection with the welding device 2, the nickel strap feeding device 3, the chip feeding device 4 and the cutting device 5.

It should be understood that, the PTC element 1 specially used for the battery includes a first nickel strap 11, a chip 12 and a second nickel strap 13, wherein the first nickel strap 11 and the second nickel strap 13 are respectively located at two opposite sides of the chip 12, the first nickel strap 11 is located below the chip 12 and one end is welded with the chip 12, and the second nickel strap 13 is located above the chip 12 and one end is welded with the chip 12.

The welding assembly system of the PTC element special for the battery comprises a welding device 2, wherein the welding device 2 comprises a positioning jig 21, a first nickel strap welding groove 211, a chip welding groove 212 and a second nickel strap welding groove 213 are formed in the positioning jig, and the first nickel strap welding groove 211 and the second nickel strap welding groove 213 are respectively located on two sides of the chip welding groove 212. Since the first nickel strap 11 is located below the die 12 and the second nickel strap 13 is located above the die 12, the depth of the first nickel strap soldering groove 211 for placing the first nickel strap 11 is greater than the depth of the die soldering groove 212 for placing the die 12, and the depth of the second nickel strap soldering groove 213 for placing the second nickel strap 13 is smaller than the depth of the die soldering groove 212, so that the battery-dedicated PTC element can be positioned at the positioning jig 21.

The welding device 2 further comprises a solder releaser 22, the solder releaser 22 selects a control type dispensing machine, the discharging end of the solder releaser 22 is positioned above the positioning jig 21 and used for releasing solder towards the positioning jig 21, and the solder is soldering tin. The discharge end of the solder releaser 22 may be moved, for example, by a robot or by a sliding assembly, so that the solder releaser 22 may release solder precisely toward the positioning jig 21.

The welding device 2 further comprises a heater 24, the heater 24 is arranged at the positioning jig 21 and is in signal connection with the control device 6, and the heating end of the heater 24 is used for heating the positioning jig 21. The heater 24 may be located at the side or below the positioning jig 21, and the heating end of the heater 24 faces the positioning jig 21, so as to heat the positioning jig 21, melt the solder between the first nickel strap 11 and the chip 12, fix the first nickel strap 11 and the chip 12, and simultaneously melt the solder between the second nickel strap 13 and the chip 12, and fix the second nickel strap 13 and the chip 12.

The nickel strap feeding device 3 comprises guide rails 31, at least two guide rails 31 are arranged, one guide rail 31 is positioned on one side of the positioning jig 21 and is communicated with the first nickel strap welding groove 211, namely, the guide rails 31 convey the first nickel strap 11 into the first nickel strap welding groove 211; the other guide rail 31 is located at the other side of the positioning jig 21 and communicates with the second nickel strap welding groove 213, i.e., the other guide rail 31 conveys the second nickel strap 13 into the second nickel strap welding groove 213. The arrangement of the guide rail 31 can feed the first nickel strap 11 and the second nickel strap 13.

The chip feeding device 4 is arranged at the side of the positioning jig 21 and is used for moving the chip 12 into the chip welding groove 212, the chip feeding device 4 adopts one or two of a CCD flexible feeding device, a vibration disc feeding device and a mechanical box shaking device, the chip 12 is arranged in an oriented mode before feeding, and the chip 12 is sucked by a manipulator and placed in the chip welding groove 212 after the arrangement.

The cutting device 5 comprises at least two cutting knives 51, the two cutting knives 51 are respectively positioned at one end of the two guide rails 31 facing the positioning jig 21, one cutting knife 51 is used for cutting the welded first nickel strap 11, and the other cutting knife 51 is used for cutting the welded second nickel strap 13, so that the special PTC element 1 for the battery is formed.

The control device 6 is in signal connection with the welding device 2, the nickel strip feeding device 3, the chip feeding device 4 and the cutting device 5, and an operator can control the movement of the welding device 2, the nickel strip feeding device 3, the chip feeding device 4 and the cutting device 5 through the control device 6.

In the welding, the control device 6 controls the guide rail 31 to transport the first nickel strap 11 into the first nickel strap welding groove 211; the second step, the control device 6 controls the output end of the solder releaser 22 to move above the first nickel strap soldering groove 211 and release the solder toward the first nickel strap 11; third, the control device 6 controls the chip feeding device 4 to move the chip 12 into the chip soldering groove 212, so that the chip 12 contacts with the first nickel strap 11 and clamps the solder; fourth, the control device 6 controls the output end of the solder releaser 22 to move above the die-bonding groove 212 and release the solder toward the die 12; fifth, the control device 6 controls the guide rail 31 to transport the second nickel tape 13 into the second nickel tape soldering groove 213 so that the second nickel tape 13 contacts the chip 12 and clamps the solder; sixth, the control device 6 controls the heater 24 to heat the positioning jig 21, so that the solder is melted, the first nickel strap 11, the chip 12 and the second nickel strap 13 are fixed, and seventh, the control device 6 controls the cutter 51 to cut the first nickel strap 11 and the second nickel strap 13 according to the requirements, thereby forming the PTC element 1 special for the battery, and welding the PTC element 1 special for the battery is completed.

According to the utility model, the lengths of the first nickel strap 11 and the second nickel strap 13 can be specifically cut through the cutter 51 according to the requirements of customers, so that the positioning jig 21 can be reused, special customization is not required according to the different lengths of the nickel straps, the welding cost is reduced, the phenomenon that the two ends of the chip 12 are provided with the double-layer first nickel strap 11 or the double-layer second nickel strap 13 is avoided through the welding assembly system, and the product quality is further improved.

In some alternative embodiments, the welding device 2 further comprises a compactor 23, the compactor 23 comprising a plurality of sets of compaction positioning probes that reciprocate toward the positioning jig 21 to compact the first nickel strap 11, the chip 12, and the second nickel strap 13. The compactor 23 comprises a plurality of groups of compaction positioning probes and an elastic structure, when the compaction positioning probes are abutted against the first nickel strap 11, the chip 12 and the second nickel strap 13, the elastic structure contracts, and damage to the first nickel strap 11, the chip 12 and the second nickel strap 13 caused by the compaction positioning probes is avoided. When in use, when the first nickel strap 11 is positioned in the first nickel strap welding groove 211, the chip 12 is positioned in the chip welding groove 212, the second nickel strap 13 is positioned in the second nickel strap welding groove 213, the compaction positioning probe moves towards the positioning jig 21, pressure is applied to the joint of the first nickel strap 11, the chip 12 and the second nickel strap 13, then the welding flux is melted by the heater 24, and the compaction positioning probe is retracted after melting, so that the first nickel strap 11, the chip 12 and the second nickel strap 13 are prevented from buckling up and down during welding.

In some alternative embodiments, the solder releaser 22 is further provided with a sensor 221, the sensor 221 may be one of an infrared sensor or an ultraviolet sensor, and the sensing end of the sensor 221 faces the positioning jig 21, and the sensor 221 is further in signal connection with the control device 6. When the sensor 221 senses that the first nickel strap 11 is positioned in the first nickel strap welding groove 211, the sensor 221 sends a signal to the control device 6, and the control device 6 controls the solder releaser 22 to release solder towards the first nickel strap 11; when the sensor 221 senses that the chip 12 is located in the chip bonding groove 212, the sensor 221 sends a signal to the control device 6, and the control device 6 controls the solder releaser 22 to release solder toward the chip 12.

In some alternative embodiments, heater 24 is at least one of a heat gun, a heating iron, and a vortex heater. The heater 24 is in signal connection with the control device 6, and an operator can control the operation of the heater 24 through the control device 6.

In some alternative embodiments, two fixing brackets 8 are further included and are respectively used for fixing the reel of the first nickel strap 11 and the reel of the second nickel strap 13, and the fixing brackets 8 are located on one side of the guide rail 31 away from the positioning jig 21 and are spaced apart from the guide rail 31. The reels are rotatably connected with the fixed support 8, one end of the first nickel strap 11 is connected with one of the reels and is wound on the reels, the other end of the first nickel strap 11 is positioned in the guide rail 31, and when the reels rotate, the first nickel strap 11 is conveyed towards the guide rail 31; one end of the second nickel strap 13 is connected to another reel and wound around the other reel, and the other end of the second nickel strap 13 is positioned in the guide rail 31, and the second nickel strap 13 is fed into the guide rail 31 when the reels rotate. The rotation of the reel can be driven by a driving member, such as a motor, which is in signal connection with the control device 6 for the control of the operator.

In some alternative embodiments, the nickel strap feeding device 3 further includes a tension sensor 32 in signal connection with the control device 6, the tension sensor 32 is located between the fixing support 8 and the guide rail 31, and an induction portion of the tension sensor 32 is used for abutting against the first nickel strap 11 or the second nickel strap 13. The tension sensors 32 are provided with two tension sensors respectively for sensing the tension of the first nickel strap 11 and the second nickel strap 13, when the tension sensor is used, the sensing part of one tension sensor 32 is abutted against the first nickel strap 11 so as to sense the tension of the first nickel strap 11, then the sensed tension is transmitted to the control device 6, and the control device 6 adjusts the rotating speed of the reel and the movement of the guide rail 31 through signals obtained by feedback so as to enable the first nickel strap 11 to be stably conveyed to the positioning jig 21; the sensing part of the other tension sensor 32 is abutted against the second nickel strap 13, so that the tension of the second nickel strap 13 is sensed, the sensed tension is transmitted to the control device 6, and the control device 6 adjusts the rotating speed of the reel and the movement of the guide rail 31 through signals obtained through feedback, so that the second nickel strap 13 is stably conveyed to the positioning jig 21.

In some alternative embodiments, the nickel strip feeding device 3 further comprises a straightening and leveling device 33 in signal connection with the control device 6, wherein the straightening and leveling device 33 is located between the tension sensor 32 and the guide rail 31, and the straightening and leveling device 33 comprises at least two clamping rollers for clamping and leveling the first nickel strip 11 or the second nickel strip 13. The straightening flattener 33 is provided with two, one for straightening and flattening the first nickel strap 11 and the other for straightening and flattening the second nickel strap 13. When the PTC element is used, the first nickel strap 11 or the second nickel strap 13 passing through the tension sensor 32 is placed into two clamping rollers, and the two clamping rollers extrude and shape the first nickel strap 11 or the second nickel strap 13, so that the first nickel strap 11 or the second nickel strap 13 is prevented from being wrinkled, and the product quality of the welded PTC element 1 special for the battery is improved.

In some alternative embodiments, the guide rail 31 is provided with a guide rail groove 311 which is adapted to the first nickel strap 11 or the second nickel strap 13, the feed roller 312 is rotationally connected to the guide rail groove 311, and the nickel strap feeding device 3 further comprises a first driving component which is in signal connection with the control device 6 and is used for driving the feed roller 312 to rotate. The guide rails 31 are provided with guide rail grooves 311, the guide rail groove 311 of one guide rail 31 is adapted to the first nickel strap 11, and the guide rail groove 311 of the other guide rail 31 is adapted to the second nickel strap 13, wherein the cross section of the guide rail groove 311 can be in a shape of a 'mouth', 'concave', or 'I', so that the first nickel strap 11 or the second nickel strap 13 is prevented from falling out of the guide rail groove 311.

The guide rail groove 311 is also internally provided with a plurality of feeding rollers 312, the feeding rollers 312 can be arranged at intervals along the length direction of the guide rail groove 311, and two ends of the feeding rollers 312 are rotationally connected with the guide rail 31, so that the first nickel strip 11 or the second nickel strip 13 is conveyed. The nickel strip feeding device 3 further comprises a first driving component in signal connection with the control device 6, and the first driving component is connected with the driving feeding roller 312 so as to be used for driving the feeding roller 312 to rotate. The operator can control the rotation and rotation speed of the feed roller 312 by the control device 6.

In some alternative embodiments, a bottom wheel 313 and a second driving assembly for driving the bottom wheel 313 to rotate are also arranged below the guide rail 31, and the second driving assembly is in signal connection with the control device 6. When the first nickel strap 11 or the second nickel strap 13 needs to be cut, the control device 6 simultaneously controls the first driving assembly and the second driving assembly so that the feeding roller 312 and the bottom wheel 313 rotate simultaneously, the feeding roller 312 rotates towards the positioning jig 21, the bottom wheel 313 rotates away from the positioning jig 21, the guide rail 31 rotates away from the positioning jig 21, and the first nickel strap 11 or the second nickel strap 13 is in a static state, so that no damage is caused to the battery-dedicated PTC element 1, and at the moment, a gap is formed between the guide rail 31 and the positioning jig 21 so that the cutter 51 stretches in to cut the first nickel strap 11 or the second nickel strap 13.

In some alternative embodiments, the battery special PTC device further comprises a blanking device 9 in signal connection with the control device 6, wherein the blanking device 9 is arranged beside the positioning jig 21 and is used for outputting the welded battery special PTC device 1. The blanking device 9 can comprise a manipulator or a sucker, and an operator can control the blanking device 9 through the control device 6, so that the blanking device 9 can take down the cut PTC element 1 special for the finished battery without influencing the welding of the PTC element 1 special for the next battery.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. A welding assembly system for a battery-specific PTC element comprising a first nickel strap, a chip, and a second nickel strap, the welding assembly system comprising:

the welding device comprises a positioning jig, a solder releaser and a heater, wherein the solder releaser is positioned above the positioning jig and is used for releasing solder towards the positioning jig, the heater is arranged at the positioning jig, the heating end of the heater is used for heating the positioning jig, the positioning jig is provided with a first nickel strap welding groove, a chip welding groove and a second nickel strap welding groove, the depth of the first nickel strap welding groove, the chip welding groove and the second nickel strap welding groove is sequentially reduced, and the first nickel strap welding groove and the second nickel strap welding groove are respectively positioned at two sides of the chip welding groove;

the nickel strap feeding device comprises at least two guide rails which are respectively positioned at two sides of the positioning jig, one guide rail is used for conveying a first nickel strap and is communicated with the first nickel strap welding groove, and the other guide rail is used for conveying a second nickel strap and is communicated with the second nickel strap welding groove;

the chip feeding device is arranged at the side of the positioning jig and is used for moving the chip into the chip welding groove;

the cutting device comprises at least two cutting knives and is respectively positioned at the two guide rails, one cutting knife is used for cutting the first nickel strap, and the other cutting knife is used for cutting the second nickel strap.

2. The welding assembly system of battery-specific PTC elements of claim 1 wherein the welding device further comprises a compactor comprising a plurality of sets of compaction positioning probes that reciprocate toward the positioning jig to compact the first nickel strap, the chip, and the second nickel strap.

3. The welding assembly system of battery-specific PTC elements according to claim 1 wherein the solder releaser is further provided with a sensor having an induction end directed toward the positioning jig.

4. The welding assembly system of battery-specific PTC elements according to claim 1 wherein the heater is at least one of a heat gun, a heating iron, and an eddy current heater.

5. The welding and assembling system for battery-dedicated PTC elements according to claim 1, further comprising at least two fixing brackets for fixing the reels of the first nickel strap and the second nickel strap, respectively, the fixing brackets being located at a side of the guide rail away from the positioning jig and disposed at intervals on the guide rail.

6. The welding and assembling system for battery-dedicated PTC elements according to claim 5 wherein the nickel strap feeding apparatus further comprises a tension sensor disposed between the fixing bracket and the guide rail, and wherein the sensing portion of the tension sensor is adapted to abut against the first nickel strap or the second nickel strap.

7. The welding and assembling system for battery-specific PTC elements according to claim 6 wherein the nickel strap feeding apparatus further comprises a straightening and leveling device, the straightening and leveling device being located between the tension sensor and the guide rail, the straightening and leveling device comprising at least two clamping rollers, the two clamping rollers being for clamping and leveling the first nickel strap or the second nickel strap.

8. The welding and assembling system for battery-dedicated PTC elements according to claim 1, wherein the guide rail is provided with a guide rail groove adapted to the first nickel strap or the second nickel strap, the guide rail groove is rotatably connected with a feeding roller, and the nickel strap feeding device further comprises a first driving assembly for driving the feeding roller to rotate.

9. The welding and assembling system for battery-dedicated PTC elements according to claim 8, wherein a bottom wheel and a second driving assembly for driving the bottom wheel to rotate are further provided under the guide rail.

10. The welding and assembling system for battery-dedicated PTC elements according to claim 1, further comprising a blanking device disposed beside the positioning jig for outputting the welded battery-dedicated PTC elements.