Abstract: An identity certificate may be issued to a blockchain node. The issuance may include issuing a first identity certificate to a first terminal and receiving a second identity certificate issuance request that is from the first terminal. A second identity certificate may be issued to the first terminal, and a third identity certificate issuance request is received from the second terminal. A third identity certificate is issued to the second terminal, so that the second terminal forwards the third identity certificate to the third terminal.

Abstract: A heating device for a vehicle is described. The heating device includes a heater core and a housing assembly. The housing assembly includes a housing configured with a protruded portion, a first terminal, and a second terminal. The first terminal is configured on the protruded portion of the housing and adapted to be connected with a first bus bar. The second terminal is configured on a first end of the housing and adapted to be connected with a second bus bar. The first bus bar and the second bus bar are connected to the heater core to provide an electrical connectivity to the heater core. The first terminal and the second terminal are laterally offset to each other, and are at least partially on opposite sides of a reference line coinciding with an edge of a printed circuit board received in the housing.

Abstract: A bus-bar system 100 includes at least one bus-bar terminal 10. Each Bus-bar terminal 10 includes a first portion 10a, a second portion 10b and an intermediate portion 10c. The first portion 10a is connected to a heating element 20 of a heating block 22. The second portion 10b is connected to a Printed Circuit Board (PCB) 30 held within a casing 32 and the intermediate portion 10c connects the first portion 10a to the second portion 10b. The first portion 10a and the second portion 10b are offset from each other and the offset is based on desired position and orientation of the Printed Circuit Board (PCB) 30 held inside the casing 32 with respect to the heating elements 20.

Abstract: The present invention discloses a ventilator mounting bracket, belonging to device installation brackets. Existing ventilator mounting brackets are smaller in adjustable distance range, difficult in installation and fixation and low in efficiency. The ventilator mounting bracket of the present invention is provided with two telescoping rod components which can extend and shorten and two folding rod components which are connected between the two telescoping rod components and can be folded and unfolded; the two folding rod components are unfolded to stretch the two telescoping rod components such that the two telescoping rod components and the two folding rod components form a mounting hole for mounting a ventilator; the two folding components are folded to withdraw the two telescoping rod components for packaging and transportation; moreover, the two ends of each one of the two telescoping rod components can be fixed at corresponding fixed parts by adjusting the length of the telescoping rod components.

Abstract: The present invention discloses a ventilator mounting bracket, belonging to device installation brackets. Existing ventilator mounting brackets are smaller in adjustable distance range, difficult in installation and fixation and low in efficiency. The ventilator mounting bracket of the present invention is provided with two telescoping rod components which can extend and shorten and two folding rod components which are connected between the two telescoping rod components and can be folded and unfolded; the two folding rod components are unfolded to stretch the two telescoping rod components such that the two telescoping rod components and the two folding rod components form a mounting hole for mounting a ventilator; the two folding components are folded to withdraw the two telescoping rod components for packaging and transportation; moreover, the two ends of each one of the two telescoping rod components can be fixed at corresponding fixed parts by adjusting the length of the telescoping rod components.