Abstract: A nucleic acid detection host includes a host body, a detection kit installation area, a sample heating area, a sampling groove, a heating structure, and an image collection unit. The detection kit installation area is configured to detachably install a nucleic acid detection kit. The sampling groove is disposed on the detection kit installation area and is connected to the detection kit installation area. The heating structure is configured to heat the nucleic acid detection kit to perform a PCR amplification reaction and an electrophoretic detection. The image collection unit is configured to collect an image of the nucleic acid detection kit. A nucleic acid detection device including the nucleic acid detection host is also disclosed. The nucleic acid detection device has a simple structure, which is portable, flexible, and convenient, and can be used at home.

Abstract: A nucleic acid detection kit includes a kit body, a detection chip disposed in the kit body, and an electrophoresis box disposed outside of the kit body. The detection chip comprises a channel and is connected to the electrophoresis box. A microbead of testable material in solution undergoes a PCR amplification reaction, an electrophoretic process, and is fluoresced for highlighting, images of elements made fluorescent can be taken and displayed. A nucleic acid detection device which can receive the nucleic acid detection kit is also disclosed. The nucleic acid detection device has a simple structure suitable for home use, being portable, flexible, and convenient.

Abstract: A camera module includes multiple camera units, a bracket, and multiple mounting rods. Each of the camera units includes a main body and a lens on the main body. The main body includes two protrusions. The two protrusions protrude from opposite sides of the main body. Each of the two protrusions includes a fixing hole. The bracket is mounted in an electronic device and includes multiple mounting holes and multiple mounting grooves disposing in a surface of the bracket. Each two of the multiple mounting grooves connect with corresponding mounting holes at opposite sides of the mounting holes. The mounting rods protrude from the mounting grooves. When the mounting holes receive the camera units, the corresponding mounting grooves receive the corresponding protrusions and the mounting rods pass through the corresponding fixing holes.

Abstract: A button structure includes a button and a fixing portion; wherein the fixing portion is configured for fixing the button, the fixing portion includes a first latching portion and a second latching portion, and the first latching portion includes a first latching opening, and the second latching portion includes a second latching opening, and the first latching opening has an opening direction substantially perpendicular to an opening direction of the second latching opening, and the first latching opening and the second latching opening are engaged with the button. An electronic device is also provided. The electronic device includes a housing and the button structure, the button structure is received in the housing.

Abstract: A camera module includes multiple camera units, a bracket, and multiple mounting rods. Each of the camera units includes a main body and a lens on the main body. The main body includes two protrusions. The two protrusions protrude from opposite sides of the main body. Each of the two protrusions includes a fixing hole. The bracket is mounted in an electronic device and includes multiple mounting holes and multiple mounting grooves disposing in a surface of the bracket. Each two of the multiple mounting grooves connect with corresponding mounting holes at opposite sides of the mounting holes. The mounting rods protrude from the mounting grooves. When the mounting holes receive the camera units, the corresponding mounting grooves receive the corresponding protrusions and the mounting rods pass through the corresponding fixing holes.

Abstract: A button structure includes a button and a fixing portion; wherein the fixing portion is configured for fixing the button, the fixing portion includes a first latching portion and a second latching portion, and the first latching portion includes a first latching opening, and the second latching portion includes a second latching opening, and the first latching opening has an opening direction substantially perpendicular to an opening direction of the second latching opening, and the first latching opening and the second latching opening are engaged with the button. An electronic device is also provided. The electronic device includes a housing and the button structure, the button structure is received in the housing.

Abstract: A sound box (10) accommodating a loud speaker (20) mounted in a housing (30) of electronic device (100) is described. The sound box (10) comprises a metal element (12) and a rubber element (14). The metal element (12) defines a receiving space (123) for accommodating the louder speaker (20), and the metal element (12) has a planar wall (122) surrounding the receiving space (123). The rubber element (14) can be formed with the planar wall (122).

Abstract: A sound box (10) accommodating a loud speaker (20) mounted in a housing (30) of electronic device (100) is described. The sound box (10) comprises a metal element (12) and a rubber element (14). The metal element (12) defines a receiving space (123) for accommodating the louder speaker (20), and the metal element (12) has a planar wall (122) surrounding the receiving space (123). The rubber element (14) can be formed with the planar wall (122).