CN-224215907-U - Heat exchange core and heat exchanger

CN224215907UCN 224215907 UCN224215907 UCN 224215907UCN-224215907-U

Abstract

The utility model discloses a heat exchange core and a heat exchanger, which relate to the technical field of heat exchange and aim at solving the problem of high resistance in U-shaped circulation of media in the prior heat exchanger, the heat exchange core comprises a plurality of core plates which are arranged in a laminated way, a first media inlet hole, a first media outlet hole, a second media inlet hole, a second media outlet hole are formed in the core plates, a media cavity is formed between two adjacent core plates, one side of one core plate is provided with the first media cavity, the other side is provided with the second media cavity, the first medium cavity comprises a first U-shaped passage and a first bypass passage, two ends of the first U-shaped passage are respectively communicated with the first medium inlet and the first medium outlet, two ends of the first bypass passage are respectively communicated with the first medium inlet and the first medium outlet, the second medium cavity comprises a second U-shaped passage and a second bypass passage, two ends of the second U-shaped passage are respectively communicated with the second medium inlet and the second medium outlet, and two ends of the second bypass passage are respectively communicated with the second medium inlet and the second medium outlet.

Inventors

XU CHANGHUI
LIU WEIFENG
QI XIAOLIANG
MA HAIJIAN
CHEN WEILONG

Assignees

浙江银轮新能源热管理系统有限公司

Dates

Publication Date: 20260508
Application Date: 20241227

Claims (8)

1. The heat exchange core body is characterized by comprising a plurality of core plates which are arranged in a stacked manner, wherein the core plates are provided with a first side and a second side which are opposite, the core plates are provided with a first medium inlet hole and a first medium outlet hole which are arranged close to the first side, and a second medium inlet hole and a second medium outlet hole which are arranged close to the second side; The first medium cavity is communicated with the first medium inlet hole and the first medium outlet hole, and the second medium cavity is communicated with the second medium inlet hole and the second medium outlet hole; The first medium cavity comprises a first U-shaped passage and a first bypass passage, two ends of the first U-shaped passage are respectively communicated with a first medium inlet hole and a first medium outlet hole, two ends of the first bypass passage are respectively communicated with the first medium inlet hole and the first medium outlet hole, and the first bypass passage is arranged close to the first side; The second medium cavity comprises a second U-shaped passage and a second bypass passage, two ends of the second U-shaped passage are respectively communicated with a second medium inlet hole and a second medium outlet hole, two ends of the second bypass passage are respectively communicated with the second medium inlet hole and the second medium outlet hole, and the second bypass passage is arranged close to the second side.
2. The heat exchange core according to claim 1, wherein the core plate has opposite first and second faces, first bosses are provided around the first medium inlet holes and the first medium outlet holes on the first face, second bosses are provided around the second medium inlet holes and the second medium outlet holes on the second face, an upper layer of the core plate is stacked rotatably 180 degrees around an axis perpendicular to the core plate plane with respect to a lower layer of the core plate, and second faces of the core plates of the upper layer and the first faces of the core plates of the lower layer are provided oppositely; The first surface of the core plate is provided with a first convex rib extending along a first direction and used for being in contact with the second surface of the adjacent core plate, the second surface of the core plate is provided with a second convex rib extending along the first direction and used for being in contact with the first surface of the adjacent core plate, the first convex rib and the second convex rib are distributed along the first direction, the first convex rib is positioned between the first medium inlet hole and the first medium outlet hole, the second convex rib is positioned between the second medium inlet hole and the second medium outlet hole, a space exists between the first convex rib and the first edge, and a space exists between the second convex rib and the second edge.
3. The heat exchange core of claim 2 wherein the first bead and the second bead have the same geometry, the first bead is located on a centerline of the first media inlet and the first media outlet, the second bead is located on a centerline of the second media inlet and the second media outlet, the first bead is configured to sealingly engage a second bead on an adjacent core plate, and the second bead is configured to sealingly engage a first bead on an adjacent core plate.
4. The heat exchange core of claim 1 wherein a plurality of bosses are provided on a first face of one of the two adjacent core plates and a plurality of bosses are provided on a second face of the other core plate.
5. The heat exchange core of claim 4 further comprising a fin disposed on and secured to the first face of the core plate having the boss on the second face.
6. The heat exchange core of claim 1 wherein the edges of the core plates are provided with flanges, the flanges of adjacent core plates being nested within one another in a sealed relationship.
7. The heat exchange core of claim 1 further comprising a top plate fixedly connected to the core plate of the outermost layer of the heat exchange core, the top plate for sealing adjacent core plates.
8. A heat exchanger comprising a heat exchange core as claimed in any one of claims 1 to 7.

Description

Heat exchange core and heat exchanger Technical Field The utility model relates to the technical field of heat exchange, in particular to a heat exchange core and a heat exchanger. Background With the continuous maturity of heat exchanger design, improve heat dispersion and reduce resistance in limited space become the development trend of heat exchanger. The cold and hot media in the existing heat exchanger show cross flow or parallel flow when flowing, the flow velocity of the cold and hot media close to the respective inlet and outlet areas is larger, the flow velocity of the cold and hot media is smaller in the areas far away from the inlet and outlet areas, so that the flow field is unevenly distributed, the flow velocity of the cold media is low in the places where the flow velocity of the cold media is large, and the flow velocity of the cold media is low in the places where the flow velocity of the hot media is large, so that the heat dissipation performance of the heat exchanger is low. Under the trend, the heat dissipation performance of the heat exchanger can be improved by adopting the U-shaped flow of the cold and hot media in the heat exchanger, but the resistance of the media circulation can be increased, which is unfavorable for the efficient operation of the heat exchanger, so that a design for improving the heat dissipation performance of the heat exchanger and reducing the resistance is needed. Disclosure of utility model The utility model aims to provide a heat exchange core and a heat exchanger, so that the heat exchange performance of the heat exchanger is enhanced, and meanwhile, the resistance of medium circulation in the heat exchanger is reduced. In order to achieve the above object, the present utility model provides the following technical solutions: The utility model provides a heat exchange core body, which comprises a plurality of core plates arranged in a stacked manner, wherein the core plates are provided with a first side and a second side which are opposite, and the core plates are provided with a first medium inlet hole and a first medium outlet hole which are arranged close to the first side, and a second medium inlet hole and a second medium outlet hole which are arranged close to the second side; the first medium cavity is communicated with the first medium inlet hole and the first medium outlet hole, and the second medium cavity is communicated with the second medium inlet hole and the second medium outlet hole; The first medium cavity comprises a first U-shaped passage and a first bypass passage, two ends of the first U-shaped passage are respectively communicated with the first medium inlet hole and the first medium outlet hole, two ends of the first bypass passage are respectively communicated with the first medium inlet hole and the first medium outlet hole, and the first bypass passage is arranged close to the first side; The second medium cavity comprises a second U-shaped passage and a second bypass passage, two ends of the second U-shaped passage are respectively communicated with the second medium inlet hole and the second medium outlet hole, two ends of the second bypass passage are respectively communicated with the second medium inlet hole and the second medium outlet hole, and the second bypass passage is arranged close to the second side. Compared with the prior art, the heat exchange core body comprises a plurality of core plates which are arranged in a stacked mode, the core plates are provided with the first medium holes and the second medium holes which are used as channels for medium circulation, bosses with extending parts extending towards the edges of the core plates are arranged around the first medium holes, the bosses provide supporting points for the adjacent core plates, the extending parts fill the support which is missing because the narrow spaces of the bosses and the edges of the core plates can not be provided with fins, when the plurality of core plates are assembled into the heat exchange core body, the bosses are tightly attached to corresponding parts of the adjacent core plates, and an effective supporting structure is formed in the direction perpendicular to the plane of the core plates while the sealing function is achieved. The mutually-attached supporting structure can bear the pressure from the upper core plate and the impact force generated when the medium flows, so that the core plate is prevented from excessively deforming or displacing under the action of external forces, the structural strength inside the heat exchanger is enhanced, and the stability and the service life of the heat exchanger are improved. Optionally, in the heat exchange core body described above, the core plate has a first face and a second face opposite to each other, a first boss is provided around the first medium inlet hole and the first medium outlet hole on the first face, a second boss is provided around the second medium inlet hole and the seco