After being reborn, the school beauty's entire family knelt down to repent.

"Xiaoming, I had someone get this nickel-chromium alloy wire from the city. What do you think of its quality?"

Chen Jianjun handed several rolls of shiny silver wire to Chen Ming.

Chen Ming took it, examined it carefully, and then squeezed it with his hands to feel the toughness and elasticity of the metal wire.

"That's right, Second Uncle, this is a good thing!"

With the materials in hand, production officially began.

Chen Ming personally participated in every step, from winding and insulation to final assembly.

Chen Jianjun watched from the side, occasionally exclaiming in admiration, "Xiaoming, with your skills, it's a pity you're not an electrician!"

In the days that followed, Chen Ming and Chen Jianjun devoted themselves wholeheartedly to the production of electric blankets.

To ensure safety, they designed multiple protection devices and added fuses and thermostats to the circuit.

The most difficult problem to solve is the arrangement of the nickel-chromium alloy wires.

To ensure the electric blanket was heated evenly, Chen Ming and Chen Jianjun tried various methods.

Finally, they used a spiral arrangement and fixed the alloy wires to a high-temperature resistant insulating cloth.

"Xiaoming, is this okay? What if the temperature is too high and the cloth catches fire?" Chen Jianjun was still a little worried.

"Second Uncle, don't worry! I've done many tests, and this insulating cloth can withstand temperatures of 200 degrees Celsius. It's absolutely safe!" Chen Ming replied confidently.

The first batch of electric blankets produced for trial use had numerous problems.

After the power was turned on, some places were as hot as an oven, so hot that people dared not touch them, while other places remained ice cold, like an unheated iron plate.

Chen Ming and Chen Jianjun held thermometers and repeatedly measured the temperature of different areas of the blanket. The discrepancies in the readings made them frown in worry.

"This won't do, Xiaoming! If we sell this, people will definitely get burned!" Chen Jianjun said worriedly, pointing to an area that was particularly hot.

"Yes, Second Uncle, there's definitely something wrong with how the heating elements are arranged."

Chen Ming also frowned, carefully examining the electric blanket in his hand, racking his brains for a solution.

"How about we try a spiral arrangement?" Chen Jianjun suggested.

"No, Second Uncle, a spiral arrangement can easily cause localized overheating," Chen Ming rejected his second uncle's suggestion.

“I think an S-shaped stitching pattern might be feasible, as it would allow the nickel-chromium alloy wires to be distributed more evenly inside the blanket.”

"S-shaped wiring?" Chen Jianjun pondered.

"This method sounds novel, but I don't know how effective it will actually be."

"Give it a try, Second Uncle, maybe it'll work," Chen Ming encouraged. They immediately got to work.

The nickel-chromium alloy wires were rearranged in an S-shape and tested. Sure enough, the temperature distribution of the blanket became much more uniform.

Electrical safety is of paramount importance, especially in the 80s.

The circuit protection device is not perfect, and the risk of leakage and short circuit is very high. A moment of carelessness could lead to a disaster.

Chen Ming was well aware of this, and he repeatedly thought about how to ensure safety to the greatest extent possible.

He racked his brains for several days and finally designed a multi-layered protection system, in addition to fuses,

He also added an overheat protection switch and a leakage current protection device, so that the circuit would be automatically disconnected in case of any abnormality.

In addition, to prevent short circuits, he added insulating sleeves to the circuit and carefully inspected all connections.

Chen Ming dared not be careless. He designed multiple protection devices and added fuses to the circuit to ensure that nothing went wrong.

“Xiao Ming,” Chen Jianjun said, pointing at the circuit board with a furrowed brow, his index finger tapping the dense array of components.

"Look at all these fuses, aren't they a bit too many?"

He paused for a moment, then continued, "This will increase the cost considerably."

He sighed, his voice filled with worry, "We don't have much start-up capital to begin with. If we can't control the costs, things will get really difficult later on."

Chen Jianjun picked up a fuse and examined it carefully under the light.

"Although a single fuse is not worth much, when there are many of them, it can add up to a considerable expense."

He put the fuse back in its place, then picked up the circuit board and examined it carefully, turning it over and over.

"Xiaoming, think about it again. Can you reduce the number of fuses or replace them with cheaper alternatives?"

He looked up, a hint of expectation in his eyes, "Every little bit saved counts."

Seeing his second uncle's worried expression, Chen Ming earnestly explained, "Second Uncle, I know you're concerned about the cost, but safety is absolutely not something to be taken lightly."

He pointed to the fuses on the circuit board and said firmly, "These fuses have all been carefully calculated and tested; not one can be missing!"

"This electric blanket comes into direct contact with the human body. If it leaks electricity, the consequences would be unimaginable!"

He emphasized, saying each word carefully, "Safety first! If this thing leaks electricity and electrocutes someone, we can't afford the consequences!"

Chen Ming's tone was resolute.

After repeated testing and improvements, the first batch of samples was finally produced.

Chen Ming couldn't wait to spread the electric blanket on the bed and plug it in.

As the indicator light on the temperature controller lit up, a warm current slowly emanated from the blanket.

Chen Ming couldn't wait to kick off his shoes and take off his socks, then carefully lay down on the newly heated electric blanket.

A warm current seeped through the thin blanket and slowly flowed throughout my body, dispelling the chill of the night.

He stretched out his limbs comfortably, closed his eyes, and felt the warm and comfortable touch.

A satisfied smile unconsciously appeared on his face.

He opened his eyes, turned to look at Chen Jianjun, and said with excitement and pride, "We did it! Second Uncle, we succeeded!"

Chen Jianjun looked at Chen Ming, who was lying on the electric blanket with a satisfied expression, and was so moved that tears welled up in his eyes.

His lips trembled, and he choked out, "Good lad! I knew you could do it! I knew you could definitely do it!"

He wiped away his tears with the back of his hand, and a relieved smile appeared on his face.

Countless days and nights of hard work, countless failed attempts, have finally paid off at this moment.

To ensure the safety of the electric blankets and to give consumers peace of mind, they decided to conduct more rigorous tests on the samples.

Chen Ming and Chen Jianjun simulated various usage scenarios and conducted detailed tests.

They even simulated a child wetting the bed by splashing a cup of water on an electric blanket.

Chen Ming smiled smugly and said, "Second Uncle, look, even if water is splashed on it, the electric blanket won't leak electricity!"

Chen Jianjun also lay down on it and experienced it for himself.

"Yeah, this thing is really great for sleeping in winter! Much better than a hot water bottle!"

To test the safety of the electric blanket, Chen Ming and Chen Jianjun also simulated various extreme situations, such as folding it or even hitting it with a hammer.