A production process of heating seat cushion with short circuit protection function

Abstract

The invention discloses a production process for a heating seat cushion with a short-circuit protection function, comprising: a. raw material preparation: preparing required cloths, and installing the cloths on a cloth frame; b. compounding: rolling two rolls of cloth into the compounding In the equipment, two pieces of fabric are compounded in the compounding equipment; c. Cutting: cutting the compounded fabric to remove the burrs on the fabric; d. Embossing: pressing out pits on the cut fabric; e. spraying Glue: spray glue in the pit formed in step d; f. Assemble: put transient suppression circuit, voltage, current, short-circuit signal sampler, MOSFET, MCU single chip and heating component into the pit in step e; g, Sewing and hemming: Cover the fabric with sponge and another layer of fabric, sew the covered fabric with the original fabric, and perform hemming treatment to obtain a cushion product.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and in particular relates to a production process of a heating seat cushion with a short-circuit protection function. Background technique [0002] With the update and iteration of automobile technology, more and more models are equipped with the seat heating function. It uses the heating components inside the seat to heat the seat and transfers the heat energy to the passengers through the seat cushion. When parked in the cold outdoors, the seats are cold and hard, making it very uncomfortable to ride, and the seats with heating function greatly improve the comfort of riding in winter. Older cars do not have seat heating function. Users can also modify the seat to have a heating function, or install a seat cushion with a heating function on the outside of the seat. To sum up, we define it as built-in heating and external heating. . [0003] Whether it is built-in or external heating, the he...

AI Technical Summary

Problems solved by technology

[0006] The several protection schemes described above have various problems in actual production, such as the complex installation process in the thermal fuse scheme, and different installation process requirements for plug-in and SMD MOSFETs, to ensure that the thermal fuse must be close MOSFET installation requires high welding process. For effective protection, the protection value of the thermal fuse generally selected is lower than the welding temperature, and the fuse will fail if it is improperly welded. The size of the relay solution limits the miniaturization of the controller, the life of the relay and the cost. It will also affect the update iteration of subsequent products

Images