Built-in antenna module of handheld B ultrasound machine

The invention relates to a built-in antenna module of a handheld B ultrasound machine. The built-in antenna module comprises a battery, a power module, an ultrasonic module, a sound head, a WIFI module and an antenna body. The antenna body is arranged on one side of the WIFI module in a foldable mode, a groove is formed in the battery so that the antenna body can be embedded into the groove in the battery after being folded, and the problem that in the prior art, when a B ultrasound probe transmits data wirelessly through WIFI, signal interference is generated by using of a public channel of 4.2 MHz, so that transmission obstacles are generated is solved. The built-in antenna module has the advantages that the built-in antenna body is arranged inside the handheld B ultrasound machine, the WIFI module connected with the antenna body and the power module used for electricity distribution are combined to form a rectangular sheet which is stacked on the ultrasonic module, in this way, the external size is reduced, the built-in antenna module is easily and integrally arranged inside a shell of the handheld B ultrasound machine and can be miniaturized, received energy can be increased, and signal interference of other co-channels is prevented.