Heat Exchange Flat Tube and Heat Exchanger

Abstract

Some embodiments of the present disclosure provide a heat exchange flat tube and a heat exchanger. The heat exchange flat tube includes: a first plate body; a second plate body, which is disposed opposite to the first plate body, a fluid channel is formed between the second plate body and the first plate body, and the fluid channel is provided with an inlet and an outlet; a throttling structure is disposed between the first plate body and the second plate body, the throttling structure communicates with the fluid channel, the throttling structure is located at the inlet, and the throttling structure includes a plurality of bent sections which communicate in sequence.

1 . A heat exchange flat tube, comprising:
 a first plate body;   a second plate body, which is disposed opposite to the first plate body, a fluid channel is formed between the second plate body and the first plate body, and the fluid channel is provided with an inlet and an outlet; and   a throttling structure, which is disposed between the first plate body and the second plate body, wherein the throttling structure communicates with the fluid channel, the throttling structure is located at the inlet, and the throttling structure comprises a plurality of bent sections which communicate in sequence.   
     
     
         2 . The heat exchange flat tube as claimed in  claim 1 , wherein the throttling structure comprises a first throttling groove, and the first throttling groove is disposed on the first plate body. 
     
     
         3 . The heat exchange flat tube as claimed in  claim 2 , wherein the first throttling groove comprises a first groove section, a first arc-shaped connecting section, a second groove section and a second arc-shaped connecting section which sequentially communicate, a throttling opening of the first throttling groove is disposed at an end, away from the first arc-shaped connecting section, of the first groove section, the second arc-shaped connecting section is located at the inlet, and an end, away from the second groove section, the second arc-shaped connecting section is provided with a flow outlet of the first throttling groove. 
     
     
         4 . The heat exchange flat tube as claimed in  claim 2 , wherein the first plate body comprises a first main plate and a first throttling plate, the first throttling plate is disposed at an end of the first main plate, and the first throttling groove is disposed on the first throttling plate; the second plate body comprises a second main plate and a second throttling plate, and the second throttling plate is disposed at an end of the second main plate; wherein the second main plate and the first main plate are oppositely disposed, and the second throttling plate and the first throttling plate are oppositely disposed, so that a first throttling channel is formed by the first throttling groove and the second throttling plate. 
     
     
         5 . The heat exchange flat tube as claimed in  claim 4 , wherein the first throttling opening of the first throttling groove is located on a side portion of the first main plate. 
     
     
         6 . The heat exchange flat tube as claimed in  claim 4 , wherein a first bent part is disposed at a side portion of the first main plate, a second bent part is disposed at a side portion of the second main plate, the second bent part and the first bent part are oppositely disposed to form a clamping part, a clamping opening which is cooperated with the clamping part is disposed on a flow collecting pipe, and the clamping part is clamped at the clamping opening to enable the first throttling groove to be inserted into the flow collecting pipe. 
     
     
         7 . The heat exchange flat tube as claimed in  claim 2 , wherein the throttling structure further comprises a second throttling groove, the second throttling groove is disposed on the second plate body, the second throttling groove is located in the inlet, the second throttling groove communicates with the fluid channel, and the second throttling groove and the first throttling groove are oppositely disposed, so that a second throttling channel is formed by the second throttling groove and the first throttling groove. 
     
     
         8 . The heat exchange flat tube as claimed in  claim 7 , wherein
 a first preset angle is formed between a circulation direction of the flow outlet of the first throttling groove and a circulation direction in the fluid channel; and   a second preset angle is formed between a circulation direction of a flow outlet of the second throttling groove and the circulation direction in the fluid channel.   
     
     
         9 . The heat exchange flat tube as claimed in  claim 2 , wherein the fluid channel is a U-shaped channel, the inlet and the outlet are located at the same end of the heat exchange flat tube and disposed at an interval, and the throttling opening of the first throttling groove is disposed towards a side close to the inlet. 
     
     
         10 . A heat exchanger, comprising a heat exchange flat tube, which is the heat exchange flat tube as claimed in  claim 1 . 
     
     
         11 . The heat exchange flat tube as claimed in  claim 3 , wherein the throttling structure further comprises a second throttling groove, the second throttling groove is disposed on the second plate body, the second throttling groove is located in the inlet, the second throttling groove communicates with the fluid channel, and the second throttling groove and the first throttling groove are oppositely disposed, so that a second throttling channel is formed by the second throttling groove and the first throttling groove. 
     
     
         12 . The heat exchange flat tube as claimed in  claim 4 , wherein the throttling structure further comprises a second throttling groove, the second throttling groove is disposed on the second plate body, the second throttling groove is located in the inlet, the second throttling groove communicates with the fluid channel, and the second throttling groove and the first throttling groove are oppositely disposed, so that a second throttling channel is formed by the second throttling groove and the first throttling groove. 
     
     
         13 . The heat exchange flat tube as claimed in  claim 3 , wherein the fluid channel is a U-shaped channel, the inlet and the outlet are located at the same end of the heat exchange flat tube and disposed at an interval, and the throttling opening of the first throttling groove is disposed towards a side close to the inlet. 
     
     
         14 . The heat exchange flat tube as claimed in  claim 4 , wherein the fluid channel is a U-shaped channel, the inlet and the outlet are located at the same end of the heat exchange flat tube and disposed at an interval, and the throttling opening of the first throttling groove is disposed towards a side close to the inlet. 
     
     
         15 . The heat exchange flat tube as claimed in  claim 6 , wherein the fluid channel is a U-shaped channel, the inlet and the outlet are located at the same end of the heat exchange flat tube and disposed at an interval, and the throttling opening of the first throttling groove is disposed towards a side close to the inlet. 
     
     
         16 . The heat exchanger as claimed in  claim 10 , wherein the throttling structure comprises a first throttling groove, and the first throttling groove is disposed on the first plate body. 
     
     
         17 . The heat exchanger as claimed in  claim 16 , wherein the first throttling groove comprises a first groove section, a first arc-shaped connecting section, a second groove section and a second arc-shaped connecting section which sequentially communicate, a throttling opening of the first throttling groove is disposed at an end, away from the first arc-shaped connecting section, of the first groove section, the second arc-shaped connecting section is located at the inlet, and an end, away from the second groove section, of the second arc-shaped connecting section is provided with a flow outlet of the first throttling groove. 
     
     
         18 . The heat exchanger as claimed in  claim 16 , wherein the first plate body comprises a first main plate and a first throttling plate, the first throttling plate is disposed at an end of the first main plate, and the first throttling groove is disposed on the first throttling plate; the second plate body comprises a second main plate and a second throttling plate, and the second throttling plate is disposed at an end of the second main plate; wherein the second main plate and the first main plate are oppositely disposed, and the second throttling plate and the first throttling plate are oppositely disposed, so that a first throttling channel is formed by the first throttling groove and the second throttling plate. 
     
     
         19 . The heat exchanger as claimed in  claim 18 , wherein a first bent part is disposed at a side portion of the first main plate, a second bent part is disposed at a side portion of the second main plate, the second bent part and the first bent part are oppositely disposed to form a clamping part, a clamping opening which is cooperated with the clamping part is disposed on a flow collecting pipe, and the clamping part is clamped at the clamping opening to enable the first throttling groove to be inserted into the flow collecting pipe. 
     
     
         20 . The heat exchanger as claimed in  claim 16 , wherein the throttling structure further comprises a second throttling groove, the second throttling groove is disposed on the second plate body, the second throttling groove is located in the inlet, the second throttling groove communicates with the fluid channel, and the second throttling groove and the first throttling groove are oppositely disposed, so that a second throttling channel is formed by the second throttling groove and the first throttling groove.