PCB composite board for PTC heater

[0015] Example 1

[0016] Embodiment 1 discloses a PCB assembly board for PTC heater, such as figure 1 As shown, it includes a positive plate 2 and two negative plates 2 and a negative plate 3. The positive plate 2 is provided with two rows of positive plate jacks 11, and both the negative plate 2 and the negative plate 3 are provided with a row of negative plate jacks 21 The end of the positive plate 2 is also provided with a positive wire welding end (pad) 12, and the end of the negative plate 2 is provided with a negative wire welding end (pad) 22 and a negative wire welding end (pad) 23; The welding end 12 and the positive plate socket 11 are electrically connected through the positive printed circuit (not marked in the figure) on the positive plate 1; the negative line welding end 22 and the negative line welding end 23 are respectively connected to the negative plate socket 21 It is electrically connected via the negative printed circuit (not marked in the figure) on the negative plate 2 and the negative plate 3; the positive plate 1 and the negative plate 2 or the negative plate 3 are not in contact with each other;

[0017] Such as figure 2 As shown, the positive plate 1 and the negative plate 2 and the negative plate 3 are located on the same plane during operation. The positive plate 1, the negative plate 2 and the negative plate 3 are respectively provided with a plurality of mounting positioning holes 4, and mounting positioning holes 4 It is used for positioning with the positioning pile (not marked in the figure) on the heating aluminum base to prevent movement. The negative plate 2 and the negative plate 3 are distributed on both sides of the positive plate 1, and the positive plate insertion hole 11 and the negative plate insertion hole 21 are set correspondingly when working; image 3 As shown, the battery pack assembly 5 is provided with a positive electrode heater 51 and a negative electrode heater 52. During installation, a plurality of battery pack assemblies 5 are located at the lower part of the PCB assembly board, and the end of the positive electrode heater 51 is inserted into the positive electrode socket In 11, the end of the negative heating plate 52 is inserted into the negative plate socket 21; then the positive and negative electrode plate sockets on the PCB assembly board and the end insertion parts of the positive and negative heating plates are welded and fixed, and the welding is completed Glue treatment is then carried out; each battery pack heating element 5 is connected by a parallel circuit. In this embodiment, the adjacent sides of the positive electrode plate 1 and the negative electrode plate 2 and the negative electrode plate 3 all have a wave-like structure. During operation, the negative electrode plate 2, the negative electrode plate 3 and the positive electrode plate 1 can be combined into a rectangular structure. In order to better facilitate the wire connection between the PCB assembly board and the IGBT module on the PTC heater, the positive and positive wire welding end 12 is connected with a positive wire 13; the negative wire welding end 22 and the negative wire welding end 23 are respectively connected with a negative electrode Wire 24; the other ends of the positive wire 13 and the negative wire 24 are respectively connected to the IGBT module.

[0018] Example 2

[0019] Embodiment 2 discloses a PCB assembly board for a PTC heater, which includes a positive plate 2 and two negative plates 2 and a negative plate 3. The positive plate 2 is provided with two rows of positive plate jacks 11, a negative plate 2 and a negative plate 3 are provided with a row of negative plate jacks 21; the end of the positive plate 2 is also provided with a positive wire welding end (pad) 12, and the end of the negative plate 2 is provided with a negative wire welding end (pad) 22 and a negative electrode. Wire welding end (pad) 23; the positive wire welding end 12 and the positive plate socket 11 are electrically connected through the positive printed circuit (not marked in the figure) on the positive plate 1; the negative wire welding end 22 and the negative wire are welded The terminals 23 are respectively electrically connected to the negative plate socket 21 through the negative plate 2 and the negative printed circuit (not marked in the figure) on the negative plate 3; the positive plate 1 and the negative plate 2 or the negative plate 3 are not in contact with each other ;

[0020] When working, the positive plate 1 and the negative plate 2 and the negative plate 3 are located on the same plane. The positive plate 1, the negative plate 2 and the negative plate 3 are respectively provided with a plurality of installation positioning holes 4, which are used to connect with The positioning pile (not marked in the figure) on the heated aluminum seat is positioned to prevent movement. The negative plate 2 and the negative plate 3 are distributed on both sides of the positive plate 1, and the positive plate jack 11 and the negative plate jack 21 are set corresponding to their positions during operation; the battery pack assembly 5 is provided with a positive electrode heater 51 and a negative electrode heater 52 During installation, multiple battery pack assemblies 5 are located at the lower part of the PCB assembly board, and the end of the positive electrode heater 51 is inserted into the positive electrode socket 11, and the end of the negative electrode heater 52 is inserted into the negative electrode socket 21; Then, the positive and negative electrode piece sockets on the PCB assembly board and the end insertion parts of the positive and negative heating pieces are welded and fixed, and the glue is applied after the welding is completed; each battery pack heating element 5 is connected by a parallel circuit. In this embodiment, the adjacent sides of the positive electrode plate 1 and the negative electrode plate 2 as well as the negative electrode plate 3 are in a folded line structure. In operation, the negative electrode plate 2, the negative electrode plate 3 and the positive electrode plate 1 can be combined into a rectangular structure. In order to better facilitate the wire connection between the PCB assembly board and the IGBT module on the PTC heater, the positive and positive wire welding end 12 is connected with a positive wire 13; the negative wire welding end 22 and the negative wire welding end 23 are respectively connected with a negative electrode Wire 24; the other ends of the positive wire 13 and the negative wire 24 are respectively connected to the IGBT module in circuit; the PCB assembly board in this embodiment is made of 94V-0 material.

[0021] Example 3

[0022] This embodiment is the same as in embodiment 2 in the connection mode and position mode of the components. The only difference is that the PCB assembly board in this embodiment is composed of 5 split boards, and the arrangement from left to right is negative plate and positive electrode. Plate, negative plate, positive plate and negative plate; wherein two rows of positive plate jacks 11 are provided on the positive plate, two rows of negative plate jacks 21 are also provided on the negative plate at the middle position, and both negative plates are provided There is a row of negative plate jacks 21; the installation method is the same as that in the second embodiment.