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CN-224230780-U - Multi-channel heat exchanger

CN224230780UCN 224230780 UCN224230780 UCN 224230780UCN-224230780-U

Abstract

The utility model relates to a multi-channel heat exchanger, which comprises a heat exchange core body, an inner cavity, an outer cavity, an inner cavity connecting pipe and a sealing cover, wherein the heat exchange core body comprises a plurality of outer tubes which are arranged side by side, an inner tube which is positioned in the outer tubes, a first channel is formed in the inner tube, a second channel is formed between the inner tube and the outer tubes, sealing blocks are connected to two ends of the adjacent outer tubes, the sealing blocks at two ends of the adjacent outer tubes and the adjacent outer tubes form a third channel, the inner cavity is respectively communicated with two ends of the inner tubes, an outer cavity is respectively covered at two ends of the outer tubes, the inner cavity is arranged in the outer cavity and is communicated with the inner cavity connecting pipe penetrating through the outer cavity, the outer cavity connecting pipe is communicated with the sealing cover connecting pipe.

Inventors

  • YIN CHENGGUO
  • BAI LING
  • XU ZHENG

Assignees

  • 泰安鼎鑫冷却器有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (7)

  1. 1. A multichannel heat exchanger is characterized by comprising a heat exchange core body (1), wherein the heat exchange core body (1) comprises a plurality of outer tubes (11) which are arranged side by side and inner tubes (12) which are arranged in the outer tubes (11), a first channel is formed in each inner tube (12), a second channel is formed between each inner tube (12) and each outer tube (11), sealing blocks (13) are connected to two ends of each outer tube (11), sealing blocks (13) at two ends of each outer tube (11) form a third channel, an inner chamber (4) which is respectively communicated with two ends of each inner tube (12), outer chambers (2) which are respectively covered at two ends of each outer tube (11) and sealing covers (6) which are respectively covered at two ends of each third channel, and the inner chambers (4) are arranged in the outer chambers (2) and are communicated with inner chamber connecting pipes (5) penetrating out of the outer chambers (2).
  2. 2. A multi-channel heat exchanger according to claim 1, wherein the second channel has a ring-shaped cross section, and a plurality of connection plates (16) are connected between the inner tube (12) and the outer tube (11).
  3. 3. A multi-channel heat exchanger according to claim 1, characterized in that heat radiating strips (14) are connected between adjacent outer tubes (11).
  4. 4. A multi-channel heat exchanger according to claim 1, wherein the heat exchange core (1) further comprises two side-by-side shields (15), the outer tube (11) being located between the two shields (15), a third channel also being formed between a shield (15) and an adjacent outer tube (11).
  5. 5. A multi-channel heat exchanger according to claim 1, wherein the outer chamber (2) is connected to an outer chamber connecting pipe (3), and the cover (6) is connected to a cover connecting pipe (7).
  6. 6. A multi-channel heat exchanger according to claim 1, wherein the inner tube (12) and the outer tube (11) are flat tubes.
  7. 7. A multi-channel heat exchanger according to claim 1, wherein the length of the inner tube (12) is greater than the length of the outer tube (11).

Description

Multi-channel heat exchanger Technical Field The utility model relates to the technical field of heat exchangers, in particular to a multichannel heat exchanger. Background In the existing fuel vehicles, hybrid vehicles, pure electric vehicles and engineering machinery, there are various fluid media which need to exchange heat, such as the heat exchange between the engine antifreeze and the air, the heat exchange between the intercooler and the intercooler, the heat exchange between the battery coolant and the cooling liquid, and the heat exchange between the air-conditioning coolant and the cooling liquid. The fluid media exchange heat through the heat exchanger generally, the heat exchanger can only exchange heat of two media, when three media are needed to exchange heat simultaneously, the fluid media can only be realized through the combination of a plurality of heat exchangers, or the fluid media exchange heat through the heat exchanger with a complex structure, and no heat exchanger which has a simple structure and can exchange heat of three media exists. Disclosure of utility model The utility model provides a multi-channel heat exchanger aiming at the defects of the prior art. The utility model provides a multi-channel heat exchanger, which comprises a heat exchange core body, an inner cavity, an outer cavity, a sealing block, a sealing cover and an inner cavity connecting pipe, wherein the heat exchange core body comprises a plurality of outer tubes which are arranged side by side, inner tubes which are arranged in the outer tubes, a first channel is formed in the inner tubes, a second channel is formed between the inner tubes and the outer tubes, the sealing blocks are connected to two ends of the adjacent outer tubes, the sealing blocks at the two ends of the adjacent outer tubes form a third channel, the inner cavity is respectively communicated with two ends of the inner tubes, the outer cavity is respectively covered at two ends of the outer tubes, and the sealing cover is respectively covered at two ends of the third channel, and the inner cavity is arranged in the outer cavity and is communicated with the inner cavity connecting pipe penetrating out of the outer cavity. In the scheme, the heat exchange medium in the first channel and the heat exchange medium in the second channel are separated through the pipe wall of the inner pipe to realize heat exchange, and the heat exchange medium in the second channel and the heat exchange medium in the third channel are separated through the pipe wall of the outer pipe to realize heat exchange between the heat exchange mediums in the three channels. As optimization, the section of the second channel is annular, and a plurality of connecting plates are connected between the inner tube and the outer tube. In the scheme, the section of the second channel is annular, so that the wall of the whole inner tube can realize the function of separating heat exchange, and the heat exchange effect is improved. As optimization, a heat dissipation belt is connected between the adjacent outer pipes. The heat dissipation area in this scheme separates every third passageway into a plurality of little passageways to make heat transfer medium can evenly disperse flow, improve the heat transfer effect. Preferably, the heat exchange core further comprises two side-by-side guard plates, the outer tube is located between the two guard plates, and a third channel is formed between the guard plates and the adjacent outer tube. The backplate in this scheme plays the effect of protection heat exchange core. As optimization, the outer chamber is communicated with an outer chamber connecting pipe, and the sealing cover is communicated with a sealing cover connecting pipe. The outer chamber connecting pipe in the scheme realizes the inlet and outlet of heat exchange medium in the outer chamber, and the sealing cover connecting pipe realizes the inlet and outlet of heat exchange medium in the sealing cover. Preferably, the inner tube and the outer tube are flat tubes. Thereby improving the heat exchange effect. Preferably, the length of the inner tube is greater than the length of the outer tube. Thereby facilitating the passage of the inner tube into the inner chamber and the passage of the heat exchange medium of the second passage into the outer chamber. The multi-channel heat exchanger has the beneficial effects that the multi-channel heat exchanger can realize heat exchange among three heat exchange media, is compact in structure and high in integration level, can be widely applied to heat exchange of media on various vehicles, and can also be applied to heat exchange in other fields. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is an exploded view of the present utility model; FIG. 3 is a front view of the present utility model; FIG. 4 is a top view of the present utility model; FIG. 5 is a left side view of the present utility