Please select the most similar patent number from A, B, C and D. Which number is?
A smart helmet, comprising a helmet body (1). The helmet body (1) is provided with a mainboard compartment (2), a starting compartment (3), and a power supply compartment (4). A first connecting terminal (208) is provided in the mainboard compartment (2), a second connecting terminal (304) is provided in the starting compartment (3), and a third connecting terminal (409) is provided in the power supply compartment (4). The first connecting terminal (208) and the second connecting terminal (304) are connected by means of a first wire (110), and the first connecting terminal (208) and the third connecting terminal (409) are connected by means of a second wire (120). The first wire (110) is wound on a first wire clip (202) and a second wire clip (302). An end of the second wire (120) close to the first connecting terminal (208) is wound on the first wire clip (202), the middle part of the second wire (120) is wound on the second wire clip (302), and an end of the second wire (120) close to the third connecting terminal (409) is wound on a third wire clip (402). The first wire (110), the second wire (120), the first wire clip (202), the second wire clip (302), and the third wire clip (402) are integrally formed with the helmet body (1). Further provided is a method for manufacturing a smart helmet.
A: Disclosed is a concatenation structure for a lamp, comprising a rear lamp cover and connection terminals. An opening is formed in the front end face of the rear lamp cover, and two grooves are formed in the rear end face of the rear lamp cover. The grooves form gaps in a side of the rear lamp cover. The connection terminals are two in number and are respectively located in the two grooves. The sides of the connection terminals facing toward the gaps are provided with connection holes. Wires extend into the grooves through the gaps and are inserted in the connecting holes. The concatenation structure further comprises glands respectively covering the two connection terminals. Two connection terminals are provided, and the two connection terminals are arranged separately, can be adapted to wires of different models, and are convenient to use. The glands and the rear lamp cover are engaged with each other by means of anti-backup teeth and limiting teeth, so that the assembly is convenient and quick. Crimping teeth on the bottom surfaces of the glands and at the bottom of the gaps can clamp the wires, so that an anti-pulling effect is achieved.
B: Provided are an LED lamp and an assembly method for connecting an LED lamp by means of a terminal. The inner chamber of the lamp body (1) of the LED lamp has a bushing (4) stacked within it; an LED aluminum base plate is sleeved at the open end of the bushing (4); the center of the aluminum base plate (5) is provided with a through-hole (52); the bushing (4) is also provided with a PCB (6); the PCB (6) is provided with a first connecting terminal (7) running through the through-hole (52); a second connecting terminal (8) is sleeved on the other end of the PCB (6). The steps of the assembly method are the following: 1. Providing mounting holes (61, 62) on the two ends of the PCB (6), and by means of a connection terminal plug post (723) and the plug tab (83) of the second connecting terminal, connecting the connection terminal (72) and the second connecting terminal (8) to the two ends of the PCB (6); 2. Passing through the through-hole (711) of the connection jack the first connecting terminal (7) arranged on one end of the PCB (6) and it being snapped onto the LED aluminum base plate (5), then inserting the connection terminal lead post (721) into the through-hole (711) of the connecting jack; 3. Loading the LED aluminum base plate (5) and the PCB (6) into a recessed cavity of the bushing (4), and connecting the LED aluminum base plate (5) to the lamp body (1) by means of a screw (91); 4. Screwing the lamp cover (2) and the screw head (3) to the lamp body (1) by way of the two ends of the lamp body (1) being screwed together; 5. Passing the screw-shaped terminal (93) into the screw head (3) from the screw head through-hole (31) and pushing it into a stepped conical tube (82) of the second connecting terminal, thus completing assembly.
C: Provided by the present disclosure is a wire connection device, relating to the field of electrical technology. The wire connection device comprises wire splitting terminals and electricity drawing terminals. Each wire splitting terminal comprises a first wire connection slot, a second wire connection slot, a first wire pressing cover plate and a second wire pressing cover plate, wherein first wire breaking mechanisms are arranged in the first wire connection slot, second wire breaking mechanisms are arranged in the second wire connection slot, and the second wire breaking mechanisms are conductively connected to the first wire breaking mechanisms; the first wire pressing cover plate is mounted on the first wire connection slot and can match the first wire breaking mechanisms, so as to break a wire by means of extrusion; and the second wire pressing cover plate is mounted on the second wire connection slot and can match the second wire breaking mechanisms, so as to break a wire by means of extrusion. According to the wire connection device provided in the present disclosure, a wire connection operation is convenient, thereby facilitating assembly by users; moreover, a plurality of assembly manners can be achieved by means of the matching of a plurality of wire connection devices, thereby meeting design requirements of various electrical connections.
D: An intelligent helmet is applicable to the field of cycling safety and protection, and comprises a helmet body (B), a speaker (8) disposed at the helmet body (B), and a control module (9). The helmet body (B) is further provided with a wire support frame (5), an electrical signal port (7) is provided on the wire support frame (5), and the wire support frame (5) is provided with a wire therein to form a signal connection between the speaker (8) and the control module (9). The wire needed by the intelligent helmet is embedded in the wire support frame (5), and only one operation is required to fasten the wire support frame (5) to an inner shell mold during injection of an inner shell material, EPS, and formation of the helmet. Therefore, the present invention avoids manual labor for fastening respective segments of a wire required for directly fastening the wire to the outer shell (1), and accordingly prevents the low fastening efficiency caused thereby. Moreover, the present invention also prevents the pressure and temperature during pressing of the inner shell material, EPS, from influencing and shifting the wire and accordingly causing leakage of the inner shell, thus ensuring a good appearance and quality of the product. In addition, the wire support frame (5) increases the strength of the helmet.
Answer: D