Abstract: An electronic card structure with decorations includes a card body, an electrical control module and a decoration module. The card body includes a panel, a bottom plate and a through hole portion. The electrical control module is disposed in the card body. The electrical control module includes a circuit control carrier plate and a non-contact type radio-frequency antenna or a contact type communication chip. The decoration module is disposed in the card body. The decoration module includes a transparent casing and a decoration. The transparent casing is disposed at the panel through the through hole portion. The decoration is disposed in the transparent casing. Therefore, owing to the decoration module, the electronic card is pleasing in appearance, has high commemorative value, and is worth collection.

Abstract: An electronic card structure with decorations includes a card body, an electrical control module and a decoration module. The card body includes a panel, a bottom plate and a through hole portion. The electrical control module is disposed in the card body. The electrical control module includes a circuit control carrier plate and a non-contact type radio-frequency antenna or a contact type communication chip. The decoration module is disposed in the card body. The decoration module includes a transparent casing and a decoration. The transparent casing is disposed at the panel through the through hole portion. The decoration is disposed in the transparent casing. Therefore, owing to the decoration module, the electronic card is pleasing in appearance, has high commemorative value, and is worth collection.

Abstract: An electronic card capable of light-emitting display includes a card body, electrical control module, light-emitting module and light-guiding module. The card body has a light-penetrable border portion having a surface on which an oblique refraction portion is disposed. The electrical control module is disposed in the card body and includes a circuit control carrier plate and a non-contact type radio-frequency antenna or a contact type communication chip. The light-emitting module is disposed in the card body and electrically connected to the circuit control carrier plate. The light-guiding module is disposed in the card body and corresponds in position to the light-emitting module. During personal data or transaction data exchange carried out with the card body, light emitted from the light-emitting module driven by the electrical control module is guided by the light-guiding module to the light-penetrable border portion, allowing the oblique refraction portion to increase display light brightness.

Abstract: A light emitting electronic card includes a card body, an electronic control module, a light emitting module and a light guide module. The card body includes a panel, a base plate, a light transmissive portion, a first light shielding portion and a second light shielding portion. The electronic control module is disposed at the card body, and includes a circuit control carrier board and a non-contact type radio-frequency (RF) antenna or a contact type communication chip. The light emitting module is disposed in the card body and is electrically connected to the circuit control carrier board. The light guide module is disposed in the card body and corresponds to the light emitting module, includes a light source focusing portion corresponding to the light transmissive portion, and guides a light source of the light emitting module to the light transmissive portion by the light source focusing portion.

Abstract: A motor, a cooling device, and a cooling method are disclosed. The cooling device is mounted on a stator of the motor. The cooling device includes a sleeve and a spiral duct. A wall of the sleeve has a spiral groove extending along the sleeve. The sleeve is sleeved onto the stator. The spiral duct is mounted in the spiral groove. The spiral duct has a first spiral form corresponding to the spiral groove, so that the spiral duct is correspondingly installed in the spiral groove. The spiral duct has a second spiral form extending along the spiral duct. A twisted spiral cooling channel is formed along the spiral pathway. A cooling fluid flowing through the twisted spiral cooling channel is subjected to the continuously changing cross-section of the twisted spiral cooling channel to enhance the swirl intensity, thereby improving the convection heat transfer effectiveness.

Abstract: A motor, a cooling device, and a cooling method are disclosed. The cooling device is mounted on a stator of the motor. The cooling device includes a sleeve and a spiral duct. A wall of the sleeve has a spiral groove extending along the sleeve. The sleeve is sleeved onto the stator. The spiral duct is mounted in the spiral groove. The spiral duct has a first spiral form corresponding to the spiral groove, so that the spiral duct is correspondingly installed in the spiral groove. The spiral duct has a second spiral form extending along the spiral duct. A twisted spiral cooling channel is formed along the spiral pathway. A cooling fluid flowing through the twisted spiral cooling channel is subjected to the continuously changing cross-section of the twisted spiral cooling channel to enhance the swirl intensity, thereby improving the convection heat transfer effectiveness.

Abstract: A 3D printer includes a machine body, a printing platform, a scanning and driving module, and a scanning and supporting module. The machine body has a bottom plate. The printing platform and the scanning and driving module are disposed on the bottom plate. The printing platform includes a slide track and a movable printing substrate. The scanning and driving module and the slide track are staggeredly disposed such that the scanning and driving module and the slide track do not interfere with the movement of the printing substrate. The scanning and supporting module is detachably combined with the scanning and driving module and is driven by the scanning and driving module.

Abstract: A detachable scanning and supporting module of a 3D printer includes a machine body, a printing platform, a scanning and driving module, and a scanning and supporting module. The machine body has a bottom plate. The printing platform and the scanning and driving module are disposed on the bottom plate. The printing platform includes a slide track and a movable printing substrate. The scanning and driving module and the slide track are staggeredly disposed such that the scanning and driving module and the slide track do not interfere with the movement of the printing substrate. The scanning and supporting module is detachably combined with the scanning and driving module and is driven by the scanning and driving module.

Abstract: In an aligning mechanism of a 3D printer scanning device, a scan driving module includes a base and a motor, and the motor has a driving gear. The scan loading module includes a loading table, a turntable, and an engaging gear connected to the turntable, and the loading table has a notch, and the engaging gear is exposed from the notch. The driving gear of the scan driving module and the engaging gear of the scan loading module have a rounded corner or a positioning portion, so that the driving gear is engaged precisely with the engaging gear.