Engine hood of passenger car

[0019] The present invention will be further described in detail below in conjunction with the description of the drawings and the specific embodiments.

[0020] See figure 1 - figure 2 , A passenger car engine cover, comprising a top cover 8, a base 2 and a shock-absorbing strip 3, the top of the base 2 is provided with a top cover 8, and the bottom edge of the base 2 is connected to the floor 4 through the shock-absorbing strip 3, and The front end of the base 2 is connected with the meter assembly 1;

[0021] The top cover 8 is provided with a heat dissipation hole 81, and a heat dissipation fan 5 is arranged in the heat dissipation hole 81. The heat dissipation fan 5 is connected to the power supply 7 through the controller 6. The controller 6 is arranged on the base 2 away from the instrument One end of the assembly 1, the power supply 7 is arranged on the base 2 near the end of the meter assembly 1;

[0022] The controller 6 includes a metal shell 61, an input power line 62, an output power line 63, a power sheet 64, an insulating column 65, an insulating table 67, and a strip-shaped temperature sensing sheet 66. One end of the input power line 62 is connected to the heat sink The fan 5 is connected, the other end of the input power cord 62 passes through the left wall of the metal casing 61 and is connected to the left conductive post 671 located inside the metal casing 61, one end of the output power cord 63 is connected to the power supply 7, and the output power cord The other end of 63 passes through the right wall of the metal shell 61 and is connected to the right conductive pillar 672 located inside the metal shell 61. The left conductive pillar 671 and the right conductive pillar 672 are arranged opposite; the left conductive pillar 671 and the right conductive pillar 672 are all L-shaped structures, and both include a horizontal conductive portion 673 and a vertical conductive portion 674 that are connected perpendicularly to each other. The bottoms of the two vertical conductive portions 674 are connected to the bottom wall of the metal shell 61 through an insulating table 67. The top part is connected to the horizontal conductive part 673. A energizing piece 64 is hung directly above the two horizontal conductive parts 673. The area of ​​the energizing piece 64 is larger than the distance between the two horizontal conductive parts 673. The back of the energizing piece 64 is insulated The column 65 is connected to the middle of the temperature sensing sheet 66, and both ends of the temperature sensing sheet 66 are embedded in the top wall opening 611 opened on the top wall of the metal shell 61.

[0023] The number of blades on the cooling fan 5 is two, three or four.

[0024] The insulating column 65 has a T-shaped structure and includes a column base 651 and a column rod 652 connected up and down. The top of the column base 651 is connected with the temperature sensing sheet 66, and the bottom of the column base 651 is vertically connected with the top of the column 652. The bottom of the rod 652 is vertically connected to the top of the energizing sheet 64, and the bottom of the energizing sheet 64 is suspended directly above the output power line 63 and the input power line 62.

[0025] The top of the temperature sensing sheet 66 is provided with a groove 661, and the groove 661 is arranged directly opposite to the junction of the insulating column 65 and the temperature sensing sheet 66.

[0026] When in use, the high temperature generated by the engine will increase the temperature of the metal casing 61, the temperature sensing sheet 66 will be deformed, the temperature sensing sheet 66 will bend downwards, and the bent temperature sensing sheet 66 will drive the energizing sheet 64 downward via the insulating column 65. When the energizing sheet 64 simultaneously presses the horizontal conductive portion 673 on the left conductive post 671 and the right conductive post 672, the output power line 63 and the input power line 62 are connected, and the circuit is conducted, thereby conducting the cooling fan 5 and the power supply 7, After starting, the cooling fan 5 generates strong wind to effectively dissipate heat.

[0027] The above are only preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. However, all equivalent modifications or changes made by those of ordinary skill in the art based on the disclosure of the present invention should be included Within the scope of protection described in the claims.