Processing equipment and production process for PPTC (Polymeric Positive Temperature Coefficient) protector for power type battery

A processing equipment and protector technology, applied in the field of PPTC protector processing equipment and production technology, can solve the problems of poor welding effect, workpiece falling off, separation, rapid heat loss, etc., achieve good heating effect and improve welding effect

Pending Publication Date: 2022-06-28
烟台鑫瑞半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that during reflow soldering, gas is mainly used for heating, and the gas has strong fluidity, and the heat loss at the inlet and outlet is faster, and its peak temperature is about 250-300°C. It is difficult to meet the requirement of more than 300 degrees, and the workpiece after welding is prone to fall off, separation, etc., and the welding effect is poor.

Method used

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  • Processing equipment and production process for PPTC (Polymeric Positive Temperature Coefficient) protector for power type battery
  • Processing equipment and production process for PPTC (Polymeric Positive Temperature Coefficient) protector for power type battery
  • Processing equipment and production process for PPTC (Polymeric Positive Temperature Coefficient) protector for power type battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] refer to figure 1, a PPTC protector processing equipment for power type batteries, including a casing 1, the casing 1 has a strong thermal insulation capability, so that the casing 1 has less heat exchange inside and outside. Two reflow soldering sections 11 are installed in the casing 1, and a solder dip box 12 is installed between the two reflow soldering sections 11. One end of the casing 1 in the length direction is set as the feeding end, and the other end is set as the discharging end; The casing 1 is installed with a driving member 3, and the driving member 3 drives the workpiece to enter the casing 1 from the feeding end, and then passes through the first reflow soldering section 11, the dip soldering box 12, and the other reflow soldering section 11, and then leaves the casing 1, and the completion is completed. Heat welding.

[0045] refer to figure 1 and figure 2 , Since the workpiece is small, the user needs to place the workpiece to be welded in the cor...

Embodiment 2

[0061] refer to Figure 4 The main difference between this embodiment and Embodiment 1 is that the lower end of the casing 1 is rotatably connected with a rotating shaft 8, the casing 1 is fixedly installed with a second motor, and the output shaft of the second motor is coaxial with the rotating shaft 8 Fixed connection, the second motor is in the starting state during processing, and drives the rotating shaft 8 to rotate. Two cams 81 are fixedly installed on the rotating shaft 8 . The two cams 81 correspond to the positions of the two lifting rods 4 one-to-one. When the cam 81 rotates to contact the lift rod 4 where the radial diameter is smaller, it drives the tooling frame 5 to descend into the dip soldering box 12;

[0062] The embodiment of the present application also discloses a production process of the PPTC protector.

[0063] refer to Figure 5 , a production process of a PPTC protector, comprising the following steps:

[0064] S1 chip cutting: the user uses a p...

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Abstract

The invention relates to a PPTC protector processing device and production technology for a power type battery, and relates to the field of battery protectors, the PPTC protector processing device comprises a machine shell, reflow soldering sections are arranged at the two ends of the machine shell in the length direction, a dip soldering box used for containing liquid tin is arranged between the two reflow soldering sections, the upper end of the dip soldering box is open, and the lower end of the dip soldering box is open. Guide rails used for placing a mold are arranged on the two sides, in the length direction of the machine shell, of the dip soldering box, the guide rails are higher than the dip soldering box, the guide rails are arranged in the length direction of the machine shell, a driving piece used for pushing the mold to move in the length direction of the machine shell is arranged in the machine shell, and a lifting rod is slidably connected in the machine shell in the vertical direction; a supporting plate is arranged at the upper end of the lifting rod, the guide rails on the two sides of the dip soldering box are communicated through the supporting plate, and the die is made of materials not prone to being stained with tin. When the die moves to the position above the supporting plate, the die descends to enable the lower end face to make contact with liquid tin, the workpiece is heated by 300 DEG C or above, and then the welding effect is improved.

Description

technical field [0001] The invention relates to the field of battery protectors, in particular to a PPTC protector processing equipment and a production process for power batteries. Background technique [0002] PPTC, that is, polymer positive temperature coefficient component, also known as resettable fuse, commonly known as resettable fuse or overcurrent protection sheet in the industry. PPTC has low resistance under normal conditions, and its resistance will rise sharply to achieve protection under overcurrent fault, and because of its excellent recoverable characteristics, after the fault is eliminated, the circuit can automatically return to the conducting state. [0003] In the current PPTC processing process, it is necessary to weld the PPTC chip board and the positive and negative plates together. Generally, the solder paste is dispensed on the mold first, and then wave soldering or reflow soldering is used according to the characteristics of the components. It is n...

Claims

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Application Information

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IPC IPC(8): B23K1/00B23K1/012B23K3/06B23K3/08B23P23/00B23K101/36
CPCB23K1/012B23K3/0669B23P23/00B23K1/0016B23K3/085B23K3/0676B23K3/08B23K2101/36Y02E60/10
Inventor 谭明传李东祥秦连杰谭森孙芳芳
Owner 烟台鑫瑞半导体有限公司
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