Heat exchange assembly and heat exchange system
A heat exchange assembly and a heat exchange system. The heat exchange assembly includes a first tube, a first member, and a retaining member. The first tube includes a first circumferential wall and a first chamber, and at least part of the first member is located in the first chamber and has a length in a length direction of the first tube. A part of the retaining member is located in the first chamber; the retaining member includes a first hole channel that runs through the retaining member, and at least part of the first member is located in the first hole channel.
1 . A heat exchange assembly, comprising:
a first tube comprising a first circumferential wall and a first chamber, wherein a wall surrounding the first chamber comprises the first circumferential wall;
a first member, wherein at least part of the first member is disposed in the first chamber and has a length in a length direction of the first tube; and
a retaining member, wherein a part of the retaining member is disposed in the first chamber, the retaining member comprises a first hole channel that runs through the retaining member, and at least part of the first member is disposed in the first hole channel;
wherein the first circumferential wall comprises an inner wall surface and an outer wall surface, the retaining member comprises a first side wall, the first side wall comprises a first side wall surface, and the first side wall surface is connected to the first circumferential wall, and
wherein, on any cross section of the first tube, a maximum projection length of the first side wall surface of the retaining member is L1, a maximum projection length of the inner wall surface of the first circumferential wall is L2, and 0.6<L1/L2<0.9.
2 . The heat exchange assembly according to claim 1 , wherein the retaining member further comprises a first through hole, the first through hole runs through the retaining member in the length direction of the first tube.
3 . The heat exchange assembly according to claim 2 , wherein a projection area of the first hole channel is greater than a projection area of the first through hole on any cross section perpendicular to the length direction of the first tube.
4 . The heat exchange assembly according to claim 2 , wherein a hydraulic diameter of the first hole channel is d1, a hydraulic diameter of the first through hole is d2, and d2>d1.
5 . The heat exchange assembly according to claim 1 , wherein the first member has a second circumferential wall, the first member further comprises a second channel, a wall surrounding the second channel comprises the second circumferential wall, and a a wall surrounding a second through hole comprises a part of the second circumferential wall.
6 . The heat exchange assembly according to claim 2 , wherein the retaining member comprises at least one dividing member, the first through hole comprises a plurality of first sub-through holes, and the at least one dividing member is disposed between two adjacent first sub-through holes in a circumferential direction of the retaining member.
7 . The heat exchange assembly according to claim 2 , wherein on any cross section perpendicular to the length direction of the first tube, a projection of the first through hole on the any cross section has a profile, and a diameter of an inscribed circle of the profile is smaller than a hydraulic diameter of the first member.
8 . The heat exchange assembly according to claim 1 , wherein a hole diameter of the first hole channel is d1, a hole diameter of the first member is d, and d1=d+H, and wherein 0.02 mm<H<0.4 mm.
9 . The heat exchange assembly according to claim 2 , wherein the first tube further comprises a first slotted hole and a second slotted hole, both of the first slotted hole and the second slotted hole run through the first circumferential wall in a thickness direction of the first circumferential wall, the first slotted hole and the second slotted hole are provided along a radial direction of the first tube, and the part of the retaining member is disposed in the first slotted hole and/or the second slotted hole,
wherein a thickness dimension of the retaining member is h, a minimum distance from a boundary of a cross section of the first hole channel to an inner wall of the first tube is D1, and 0.5×h<D1<2×h, and
wherein a minimum distance from a boundary of a cross section of the first through hole to the inner wall of the first tube is D2, and 0.5×h<D2<2×h.
10 . The heat exchange assembly according to claim 5 , wherein an end of the first member extending into the first chamber is a first end, the first end has a first end surface, and a projection area of the first end surface on a cross section perpendicular to the length direction of the first tube is smaller than a projection area of the second channel on the cross section.
11 . The heat exchange assembly according to claim 1 , wherein the first tube comprises a second hole channel, and a wall surrounding the second hole channel comprises the retaining member and a part of the first circumferential wall.
12 . The heat exchange assembly according to claim 11 , wherein the retaining member comprises the first side wall and a second side wall, the second side wall is directly or indirectly connected to the first side wall, the retaining member further comprises a first protrusion, the second side wall comprises a part of the first protrusion, and the part of the first protrusion is disposed in the second hole channel.
13 . The heat exchange assembly according to claim 12 , wherein the retaining member comprises a first recess, the second side wall comprises a part of the first recess, and the first recess faces the second hole channel.
14 . The heat exchange assembly according to claim 13 , wherein a projection of at least part of the first hole channel coincides with a projection of a part of the first recess on a longitudinal section parallel to the length direction of the first tube and comprising an axis of the first tube.
15 . The heat exchange assembly according to claim 1 , wherein the retaining member further comprises one or more first through holes, the one or more first through holes run through the retaining member in the length direction of the first tube, and a hydraulic diameter of each of the one or more first through holes is smaller than a hydraulic diameter of the first hole channel.
16 . The heat exchange assembly according to claim 1 , wherein the retaining member further comprises two or more protuberances spaced apart along a circumferential direction of the retaining member, and the retaining member is connected to the first circumferential wall through the two or more protuberances.
17 . The heat exchange assembly according to claim 16 , wherein the first tube comprises a third hole channel disposed between the two or more protuberances in the circumferential direction of the retaining member.
18 . The heat exchange assembly according to claim 1 , wherein a direction perpendicular to the length direction of the first tube is defined as a first direction, on any cross section of the first tube, a maximum length dimension of the retaining member projected in the first direction is d, a hydraulic diameter of the first tube is D, and a following relationship is satisfied: d/D<0.7.
19 . A heat exchange system, comprising:
the heat exchange assembly of claim 1 ,
wherein the heat exchange assembly further comprises a second tube, wherein the first tube and the second tube are spaced apart;
a plurality of heat exchange tubes, wherein the plurality of heat exchange tubes are spaced apart along a length direction of the first tube, the plurality of heat exchange tubes comprises a plurality of channels extending along a length direction of the plurality of heat exchange tubes, the plurality of channels are spaced apart in a width direction of the plurality of heat exchange tubes, and the plurality of heat exchange tubes is directly or indirectly connected to the first tube and directly or indirectly connected to the second tube; and
a plurality of fins, wherein the plurality of fins is connected to the plurality of heat exchange tubes, and a part of each of the plurality of fins is disposed between two adjacent heat exchange tubes in the length direction of the first tube.