Electric control component, air conditioner having same, and assembly method for electric control component
Provided are an electric control component, an air conditioner having the same, and an assembly method for the electric control component. The electric control component includes a circuit board, a chip, a radiator and a fixing member. The chip is disposed on the circuit board. The radiator is disposed at a side of the chip away from the circuit board. The fixing member is configured to rigidly connect the radiator to the circuit board. At least one of the circuit board and the radiator has an engagement portion adapted to be engaged with a pre-tightening device for clamping the radiator and the circuit board.
1 . An electric control component for an outdoor unit of an air conditioner, the electric control component comprising:
a circuit board;
a chip disposed on the circuit board;
a radiator disposed at a side of the chip away from the circuit board;
a pre-tightening device engaging with an engagement portion disposed on at least one of the circuit board or the radiator at a first location to clamp the radiator and the circuit board; and
a fixing member engaging with the circuit board and the radiator at a second location that is separate from the first location to connect the radiator to the circuit board,
wherein:
the engagement portion comprises a second through hole formed on the radiator at the first location and a second via hole formed on the circuit board at the first location;
the pre-tightening device comprises a mounting member passing through the second through hole and the second via hole;
the pre-tightening device further comprises a spring member sleeved over the mounting member;
the mounting member and the spring member provide an elastic force clamping the radiator and the circuit board; and
a diameter of the mounting member is larger than that of the fixing member.
2 . The electric control component according to claim 1 , wherein:
the fixing member is soldered to the circuit board; and/or
the fixing member is riveted to the radiator.
3 . The electric control component according to claim 2 , wherein:
a first through hole is formed on the radiator at the second location;
a first via hole is formed on the circuit board at the second location; and
the fixing member has a head portion and a rod portion, the head portion being riveted to the first through hole, and the rod portion passing through the first via hole and being soldered into the first via hole.
4 . The electric control component according to claim 3 , wherein:
a plane perpendicular to an axis of the rod portion is defined as a projection plane;
a projection area of the head portion on the projection plane is greater than a projection area of the rod portion on the projection plane; and
the projection area of the head portion on the projection plane is greater than a projection area of the first via hole on the projection plane.
5 . The electric control component according to claim 1 , wherein the engagement portion comprises:
a second through hole formed on the radiator at the first location; and
a second via hole formed on the circuit board at the first location.
6 . The electric control component according to claim 5 , wherein the radiator comprises:
a body portion; and
two connection portions disposed on two sides of the body portion in a first direction, the second through hole being formed on one of the two connection portions.
7 . The electric control component according to claim 6 , wherein the first through hole has a diameter that is unequal to a diameter of the second through hole.
8 . The electric control component according to claim 1 , further comprising the pre-tightening device engaged with the engagement portion, wherein:
the pre-tightening device clamps the radiator and the circuit board, or
the pre-tightening device positions the radiator and the circuit board in a plane perpendicular to a clamping direction.
9 . The electric control component according to claim 8 , wherein:
the radiator comprises:
a body portion; and
two connection portions disposed on respective sides of the body portion in a first direction; and
the pre-tightening device and the fixing member are disposed through one of the two connection portions.
10 . The electric control component according to claim 1 , wherein:
the mounting member comprises:
a penetrating portion passing through the second through hole and the second via hole;
a first abutting portion connected to the penetrating portion and limited on a side of the circuit board away from the radiator; and
a second abutting portion connected to the penetrating portion and limited on a side of the radiator away from the circuit board; and
the spring member is disposed between the first abutting portion and the circuit board or between the second abutting portion and the radiator.
11 . The electric control component according to claim 10 , wherein:
the first abutting portion is a first elastic snap limited on the side of the circuit board away from the radiator; and/or
the second abutting portion is a second elastic snap limited on the side of the radiator away from the circuit board.
12 . The electric control component according to claim 1 , wherein:
the electric control component further comprises a thermally conductive member disposed between the radiator and the chip; or
the chip is an intelligent power module with a patch disposed on the circuit board.
13 . An air conditioner comprising:
the electric control component according to claim 1 ; and
a plurality of power-consumption operation components, wherein the electric control component is electrically connected to at least one of the power-consumption operation components; or
an indoor unit and an outdoor unit, wherein the electric control component is disposed in the outdoor unit.
14 . The electric control component according to claim 1 , further comprising another fixing member connecting the radiator to the circuit board in a third location,
wherein:
at least one of the circuit board or the radiator has another engagement portion adapted to be engaged with another pre-tightening device;
the other engagement portion is in a fourth location that is separate from the third location; and
the other engagement portion is configured to, in conjunction with the other pre-tightening device, clamp the radiator and the circuit board.
15 . The electric control component according to claim 14 , wherein:
the fixing member and the engagement portion are disposed on one side of the radiator in a first direction; and
the other fixing member and the other engagement portion are disposed on another side of the radiator in the first direction.
16 . The electric control component according to claim 15 , wherein:
the fixing member and the other fixing member are disposed on opposite sides of the radiator in a second direction that is perpendicular to the first direction; and
the engagement portion and the other engagement portion are disposed on opposite sides of the radiator in the second direction.