Capacitor seat plate assembly

1. A seat plate assembly for fixing a capacitor body on a circuit board, comprising:

a base plate;

a first guard plate;

a second guard plate;

a third guard plate;

a fourth guard plate;

a first reinforcing rib; and

a second reinforcing rib;

wherein the first guard plate, the second guard plate, the third guard plate and the fourth guard plate are arranged spaced apart on an upper end surface of the base plate in sequence;

the first reinforcing rib is configured to connect the first guard plate with the second guard plate; and

the second reinforcing rib is configured to connect the third guard plate with the fourth guard plate; and

wherein a height of the first guard plate is equal to a height of the third guard plate;

a height of the second guard plate is equal to a height of the fourth guard plate;

the height of the first guard plate and the third guard plate is lower than half of a height of the capacitor body; and

the height of the second guard plate and the fourth guard plate is larger than half of the height of the capacitor body.

2. The seat plate assembly of claim 1 , wherein the base plate is provided with a first through hole and a second through hole;

a lower end surface of the base plate is provided with a first groove and a second groove;

the first groove and the second groove are arranged spaced apart and opposite to each other;

the first through hole is communicated with the first groove; and

the second through hole is communicated with the second groove.

3. The seat plate assembly of claim 2 , wherein a first welding part is arranged in the first groove;

a second welding part is arranged in the second groove; and

the seat plate assembly is welded on the circuit board through the first welding part and the second welding part.

4. The seat plate assembly of claim 3 , wherein the first welding part comprises a first end, a first intermediate portion and a second end connected in sequence;

the first intermediate portion is arranged in the first groove; the first intermediate portion fits the first groove;

the first end and the second end are arranged on the base plate; the first end is arranged at a first side of the first groove;

the second end is arranged at a second side of the first groove;

the first side of the first groove is opposite to the second side of the first groove;

the second welding part comprises a third end, a second intermediate portion and a fourth end connected in sequence;

the second intermediate portion is arranged in the second groove; the second intermediate portion fits the second groove;

the third end and the fourth end are arranged on the base plate;

the third end is arranged on a first side of the second groove;

the fourth end is arranged on a second side of the second groove; and

the first side of the second groove is opposite to the second side of the second groove.

5. The seat plate assembly of claim 4 , wherein the first welding part further comprises a fifth end;

the fifth end is connected to the first intermediate portion;

the fifth end is configured to extend to or out of a boundary of the base plate along the first groove;

the second welding part further comprises a sixth end;

the sixth end is connected to the second intermediate portion;

the sixth end is configured to extend to or out of the boundary of the base plate along the second groove.

6. The seat plate assembly of claim 3 , wherein the base plate is further provided with a third through hole and a fourth through hole;

the third through hole is communicated with the second groove; and

the fourth through hole is communicated with the first groove.

7. The seat plate assembly of claim 1 , wherein a first notch and a second notch are arranged spaced apart on the base plate.

8. The seat plate assembly of claim 1 , wherein the seat plate assembly further comprises an auxiliary soldering lug;

the auxiliary soldering lug is arranged on a lower end surface of the base plate; and

the auxiliary soldering lug is configured for soldering the base plate on the circuit board.

9. An anti-vibration capacitor assembly, comprising:

a capacitor body; and

the seat plate assembly of claim 1 ;

wherein the seat plate assembly is configured to support the capacitor body.