Compressor structure
A compressor structure including a compressor housing, an oil tank, an oil-gas barrel, a motor, a first assembly base, at least one oil filter, a second assembly base, and at least one oil mist separator is provided. The compressor housing has a compression chamber. The oil tank is disposed below the compressor housing. The oil-gas barrel is communicated with the oil tank. The first assembly base has a discharge passage, and the compression chamber is communicated with the oil-gas barrel through the discharge passage. The oil filter is disposed on the first assembly base and is communicated with the compression chamber through the first assembly base. The second assembly base is disposed on the oil-gas barrel. The oil mist separator is disposed on the second assembly base and is communicated with the oil-gas barrel through the second assembly base.
1 . A compressor structure, comprising:
a compressor housing, having a compression chamber;
an oil tank, disposed below the compressor housing;
an oil-gas barrel, communicated with the oil tank, wherein the compressor housing and the oil tank are located at a same side of the oil-gas barrel;
a motor;
a first assembly base, wherein the motor and the first assembly base are respectively disposed at two opposite sides of the compressor housing, wherein the first assembly base has a discharge passage, and the compression chamber is communicated with the oil-gas barrel through the discharge passage;
at least one oil filter, disposed on the first assembly base and communicated with the compression chamber through the first assembly base;
a second assembly base, disposed on the oil-gas barrel; and
at least one oil mist separator, disposed on the second assembly base and communicated with the oil-gas barrel through the second assembly base.
2 . The compressor structure according to claim 1 , wherein the oil-gas barrel comprises a top portion and a bottom portion, and the top portion has a top opening, the second assembly base comprises a barrel cover and an oil-gas separation cylinder, and the barrel cover and the oil-gas separation cylinder are formed as an integrally cast structure, the barrel cover covers the top opening, and the oil mist separator is disposed on the barrel cover, the oil-gas separation cylinder is inserted into the oil-gas barrel from the top opening and extends toward the bottom portion, wherein an annular flow channel is formed between an inner wall surface of the oil-gas barrel and an outer wall surface of the oil-gas separation cylinder, and the discharge passage is communicated with the annular flow channel.
3 . The compressor structure according to claim 2 , wherein a communication position of the discharge passage and the annular flow channel is close to the top opening, and the oil-gas separation cylinder has an oil-gas separation space surrounded by the annular flow channel, the oil-gas separation space has a bottom opening facing the bottom portion, wherein the oil mist separator is communicated with the oil-gas barrel through the oil-gas separation space, the barrel cover has an oil-gas passage, and the oil mist separator is communicated with the oil-gas separation space through the oil-gas passage.
4 . The compressor structure according to claim 2 , wherein the first assembly base comprises an oil filter base, a bearing base, and a bearing base cover, the oil filter is disposed on the oil filter base and is communicated with the compression chamber through the oil filter base, the first assembly base further has a bearing assembly space separated from the discharge passage, and the discharge passage and the bearing assembly space are formed on the bearing base, wherein the bearing base cover is disposed on the bearing base and covers the bearing assembly space and the discharge passage.
5 . The compressor structure according to claim 4 , further comprising:
a first rotor, coupled to the motor, wherein the motor comprises a motor rotor, a motor stator surrounding the motor rotor, and a shaft sleeve interference fit and fixed inside the motor rotor, and the shaft sleeve is interference fit and fixed to a docking end of the first rotor;
a key, wherein the docking end has a first slot, and the shaft sleeve has a second slot, the key is engaged with the first slot and the second slot;
a second rotor, wherein the second rotor and the first rotor are disposed in the compression chamber and mesh with each other; and
a first bearing and a second bearing, disposed in the bearing assembly space, wherein one end of the first rotor is inserted into the bearing assembly space, and the first bearing is sleeved on the end of the first rotor, and one end of the second rotor is inserted into the bearing assembly space, and the second bearing is sleeved on the end of the second rotor.
6 . The compressor structure according to claim 4 , wherein the discharge passage surrounds the bearing assembly space, and a concave arc side of the discharge passage faces the bearing assembly space, wherein the discharge passage has a first port communicated with the compression chamber and a second port communicated with the oil-gas barrel, and a height difference or no height difference exists between the second port and the first port in a gravitational direction.
7 . The compressor structure according to claim 4 , wherein one end of the discharge passage is communicated with an air discharge portion of the compression chamber, and another end of the discharge passage is communicated with the oil-gas barrel in a tangential direction of the outer wall surface of the oil-gas barrel.
8 . The compressor structure according to claim 7 , wherein a portion of the discharge passage surrounds the bearing assembly space.
9 . The compressor structure according to claim 4 , wherein the oil filter base has a first internal oil passage, and the compressor housing further has a second internal oil passage communicated with the compression chamber, the first internal oil passage is communicated with the second internal oil passage, and the oil filter is communicated with the compression chamber through the first internal oil passage and the second internal oil passage, wherein the compressor housing further has at least one oil injection hole, and the second internal oil passage is communicated with the compression chamber through the at least one oil injection hole.
10 . The compressor structure according to claim 1 , wherein the oil-gas barrel comprises a top portion, a bottom portion, and an oil sight glass, and the second assembly base is disposed on the top portion, the oil sight glass is disposed between the top portion and the bottom portion and close to a lower half of the oil-gas barrel wherein two rectifying plates corresponding to the oil sight glass are provided inside the oil-gas barrel, and the two rectifying plates are located between the oil sight glass and the oil tank, wherein a gap exists between the two rectifying plates, and the gap gradually expands from the oil tank toward the oil sight glass.
11 . The compressor structure according to claim 10 , wherein a smallest gap in the gap farthest from the oil sight glass is ½ to 3 times a width of the oil sight glass.
12 . The compressor structure according to claim 10 , wherein each of the rectifying plates has a first surface facing the oil tank and a second surface facing the oil sight glass, and an included angle between the two second surfaces of the two rectifying plates is between 30 degrees and 180 degrees.
13 . The compressor structure according to claim 10 , wherein two rectifying plates corresponding to the oil sight glass are provided inside the oil-gas barrel, and the two rectifying plates extend upward from the bottom portion.
14 . The compressor structure according to claim 10 , wherein two rectifying plates corresponding to the oil sight glass are provided inside the oil-gas barrel, and the two rectifying plates are protruded from an inner wall surface in the oil-gas barrel connected to the bottom portion.
15 . The compressor structure according to claim 1 , wherein a plurality of outer linear ribs are disposed in parallel on the outside of the oil tank, and a plurality of intersecting inner linear ribs are disposed inside the oil tank.
16 . The compressor structure according to claim 1 , further comprising:
a first external oil passage, wherein the oil-gas barrel is communicated with an external cooler through the first external oil passage;
a second external oil passage, wherein the external cooler is communicated with the motor through the second external oil passage;
a third external oil passage, wherein the motor is communicated with the oil filter through the third external oil passage; and
at least one fourth external oil passage, wherein the oil mist separator is communicated with the first assembly base through the at least one fourth external oil passage.
17 . The compressor structure according to claim 16 , wherein the first assembly base further has a bearing assembly space separated from the discharge passage, and the at least one fourth external oil passage is communicated with the bearing assembly space.
18 . The compressor structure according to claim 16 , wherein the motor comprises a motor housing, and the motor housing has a cooling channel, the external cooler is communicated with an input port of the cooling channel through the second external oil passage, and an output port of the cooling channel is communicated with the oil filter through the third external oil passage.
19 . The compressor structure according to claim 1 , wherein the oil tank has an oil tank opening located below the motor, and the oil tank is provided with an oil tank cover for closing the oil tank opening.
20 . The compressor structure according to claim 1 , further comprising:
an external oil passage, wherein the oil tank is communicated with an external cooler through the external oil passage.