37results about How to "Guarantee your own strength" patented technology

The invention discloses a battery box for an electric vehicle, which includes a box body and a main body of a cover plate, buckles are installed on the end of the main body of the cover plate through an elastic connector, and a slot matching the buckle is opened on the side wall of the box body , the battery pack is fixed in the box, a balance system is installed on the battery pack, a through hole is opened on the side wall of the box body on the same side as the card slot, and support plates are respectively installed on the two side walls of the through hole, A plurality of oscillating plates are arranged up and down side by side and rotated on two supporting plates, and a left wing plate and a right wing plate whose ends are equal to the two ends of the oscillating plate are fixed respectively. The left wing plate extends upward, the right wing plate extends downward, and the right wing plate extends downward. The length of the board is greater than the length of the left wing board. When the temperature in the box gradually decreases, the swing plate will return to the previous inclined state due to the gravity difference at both ends, so that the through hole will be closed again, and the external dust and other impurities will not easily enter the box, so as to ensure the normal operation of the battery pack. Work.

The invention discloses a board-to-board connector and a socket connector. The board-to-board connector comprises a socket connector and a plug connector, wherein the socket connector comprises two side walls and two end walls connected to the two side walls; socket slots are formed in an enclosing manner; a socket protection bracket is provided with end wall reinforcing sheets positioned on the end walls and side wall reinforcing sheets positioned on the side walls; the side wall reinforcing sheets comprise side attaching parts and elastic arms positioned on two sides of the side wall inner walls; and elastic arms of the socket protection bracket have relatively long moment arms. Thus, the board-to-board connector can be assembled stably; the problem of large yield of the elastic arms after the board-to-board connector is plugged and unplugged is solved; and the contact is stable and reliable when the board-to-board connector is plugged and unplugged.

The invention provides a preparation method of a metal coating on the surface of a carbon fiber composite material, and belongs to the technical field of surface treatment of materials. The preparation method includes the following steps that firstly, the carbon fiber composite material is subjected to vacuum baking, grinding and wiping to obtain a pretreated composite material; secondly, the surface of the pretreated composite material is coated with resin metal organic hybrid paint to obtain an interface coating; the surface of the obtained interface coating is sandblasted and then sprayed with deposited metal to obtain the carbon fiber composite material with the metal coating on the surface. By means of the preparation method, the surface of the prepared metal coating is uniform and dense, and the bonding strength between the metal coating and the carbon fiber composite material is high.

The invention belongs to the technical field of packaging boxes, and particularly relates to a reusable environment-friendly packaging box which comprises a box body, the box body comprises two firstside plates and two second side plates, the two first side plates and the two second side plates are alternately connected, angle blocks are arranged on the adjacent sides of the first side plates andthe second side plates, the upper ends of every two adjacent angle blocks are connected and fixed through a connecting plate, the lower ends of every two adjacent angle blocks are connected and fixedthrough a connecting plate, and the connecting plates are arranged parallel to the inner side faces of the first side plates and the second side plates at intervals. A blocking piece is arranged in asquare frame defined by each upper connecting plate, the corresponding lower connecting plate, the corresponding left angle block and the corresponding right angle block, and the space between each blocking piece and the corresponding first side plate and the space between each blocking piece and the corresponding second side plate are filled with soft buffer materials. According to the environment-friendly packaging box, equivalently, a frame structure is arranged in the whole box body, the overall strength of the box body is improved, objects can be effectively protected against damage in the transportation process of the box body, the strength of the packaging box can be guaranteed, and the purpose of repeated use can be achieved. The reusable environment-friendly packaging box is simple and convenient to use, and the packaging and transporting cost is reduced.