Elastic electric-heating cupping jar

A manufacturing method of an elastic electric-heating cupping jar comprising a jar body and an electric heating device, wherein the jar body is hollow, and the jar body is made of an elastic material;

• the electric heating device comprises an electric heating wire and a connection fixture, wherein the electric heating wire and the connection fixture are electrically connected to each other;
• the connection fixture comprises a circuit board and a pluggable port for connecting the circuit board with a controller and/or an external power supply;
• two poles of the electric heating wire and a wire connecting end of the pluggable port are electrically connected to the circuit board;
• and the electric heating device is encapsulated in a wall, a center of the electric heating wire is located on or adjacent to an axial cross section with the maximum jar body diameter, and the pluggable port faces toward an outer surface of the jar body and the pluggable port is electrically connected to the controller outside the jar body and/or the external power supply through a matching pluggable piece, wherein the manufacturing method manufactures the elastic electric-heating cupping jar through an injection molding process, and comprises the following steps:
• S1:
• connecting the electric heating wire, the pluggable port and a thermistor of the electric heating device with the circuit board;
• S2:
• molding a first jar body portion, wherein
• the first jar body portion comprises a portion below the axial cross section with the maximum jar body diameter;
• a liquid silicone is injected into a cavity of a first jar body portion molding die for molding the first jar body portion;
• a circumferential clamping groove for circumferentially and annularly embedding the electric heating device is formed at an upper end of the first jar body portion;
• and
• the circumferential clamping groove matches in a shape and size with the electric heating device to be fixed through an encapsulation process;
• S3:
• fixing the electric heating device, wherein
• the electric heating wire and the connection fixture of the electric heating device are fixed in the circumferential clamping groove at the upper end of the first jar body portion after the first jar body portion is molded;
• and
• S4:
• molding an entire jar body, wherein
• the first jar body portion having the electric heating device is placed into a cavity of an entire jar body molding die,
• the liquid silicone is injected into the cavity of the entire jar body molding die with the injection molding process to form the entire jar body having the electric heating device,
• the electric heating device is encapsulated in a wall of the jar body,
• wherein S1 and S2 are interchangeable in sequence.