CN113280648A - Heat exchanger and assembling method - Google Patents
Heat exchanger and assembling method Download PDFInfo
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- CN113280648A CN113280648A CN202010105347.8A CN202010105347A CN113280648A CN 113280648 A CN113280648 A CN 113280648A CN 202010105347 A CN202010105347 A CN 202010105347A CN 113280648 A CN113280648 A CN 113280648A
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- collecting
- plate
- channel
- flat tube
- flat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/268—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by permanent joints, e.g. by welding
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat exchanger and an assembly method. The flat tube assembly at least comprises a flat tube, and is characterized in that the first current collecting assembly comprises a first current collecting component, the first current collecting component comprises a first substrate part and a first current collecting part arranged on one side of the first substrate part, a first current collecting channel is arranged in the first current collecting part, a plurality of distributing channels are arranged on the first substrate part, one distributing channel is communicated with the first current collecting channel and at least one fluid channel, the distributing channels are distributed along the extending direction of the first current collecting part, and the cross section area of at least one part of the distributing channels is gradually reduced in the extending direction of the first current collecting part. Thereby making the refrigerant distribution more uniform within the flat tubes.
Description
Technical Field
The invention relates to the technical field of heat exchange, in particular to a heat exchanger and an assembly method.
Background
The micro-channel heat exchanger comprises flat tubes, fins and a collecting pipe, wherein the collecting pipe is mainly used for distributing and collecting refrigerants in the flat tubes.
Circular shape pressure manifold because inner space is great, can cause inside gas, liquid refrigerant to take place the separation, can make the refrigerant evenly distributed go to every flat pipe through increasing branch liquid device (like dividing liquid pipe etc.).
Disclosure of Invention
The invention aims to provide a heat exchanger, which comprises: the flat tube assembly at least comprises a flat tube, the flat tube assembly is internally provided with a plurality of fluid channels, the flat tube assembly is characterized by comprising a first current collecting component, the first current collecting component is provided with a first substrate part and a first current collecting part arranged on one side of the first substrate part, the first current collecting part is internally provided with a first current collecting channel, the first substrate part is provided with a plurality of distributing channels, one distributing channel is communicated with the first current collecting channel and at least one fluid channel, the distributing channels are distributed along the extending direction of the first current collecting part, and the cross section area of at least one part of the distributing channels is gradually reduced in the extending direction of the first current collecting part.
The first collecting assembly comprises a first substrate portion and a first collecting portion, a distribution channel penetrating through the first substrate portion and communicated with the first collecting channel is arranged on the first substrate portion, and the sectional area of the distribution channel is gradually reduced along the extending direction of the first collecting portion, so that the refrigerant is more uniformly distributed to the fluid channel, and the heat exchange efficiency of the heat exchanger is improved.
The invention also provides a heat exchanger assembly method, wherein the heat exchanger comprises a flat tube assembly and the first collecting assembly connected with the flat tube assembly, the first collecting assembly comprises a first collecting component, the first collecting component comprises a first substrate part and a first collecting part arranged on one side of the first substrate part, the first collecting assembly further comprises a first connecting plate and a first flow plate, the first flow plate is arranged between the first connecting plate and the first substrate part, the first connecting plate is provided with a flanging part, and the flanging part extends from one end of the first connecting plate to the other end in the extending direction of the first collecting part, and the heat exchanger assembly method comprises the following steps:
the first collecting component, the first circulating plate and the first connecting plate are sequentially laminated together, and the first base plate part is pressed by the flanging part so that the first collecting component, the first circulating plate and the first connecting plate are pressed and fixed;
the first connecting assembly is assembled to the end part of the flat pipe assembly through a first connecting plate, and is fixed through a clamp and then placed into a furnace for welding.
The first collecting component, the first circulating plate and the first connecting plate are welded after being compressed by the flanging parts, so that a clamp on one side of the first collecting component can be omitted, the cost is reduced, and meanwhile, the first collecting component can be prevented from loosening during welding, and the welding strength of the first collecting component is improved.
Drawings
FIG. 1 is an exploded view of a heat exchanger assembly according to one embodiment of the present invention;
fig. 2 is an exploded view of a second current collection assembly according to one embodiment of the invention;
FIG. 3 is an exploded view of a heat exchanger assembly of another embodiment of the present invention;
FIG. 4 is an exploded view of a heat exchanger assembly according to yet another embodiment of the present invention;
fig. 5 is a schematic structural view of a first current collecting member according to the present invention.
Reference numerals:
a first current collecting member 11, a first substrate portion 111, a distribution channel 1111, a communication hole 1112, a first current collecting portion 112, a first current collecting channel 1121, a current collecting portion 113, a current collecting channel 1131,
the first connecting plate 12, the burring part 121,
the first flow plate 13, the first flow channel 131, the second flow channel 132,
a flat tube assembly 2, a first flat tube assembly 21, a flat tube 211, a second flat tube assembly 22, a third flat tube assembly 23,
the second collecting member 31, the second substrate portion 311, the collecting channel 3111, the second collecting portion 312, the second collecting channel 3121,
a second connecting plate 32 is provided on the second side,
the second flow plate 33, the third flow channel 331, the fourth flow channel 332,
the baffle plate 41, the baffle passage 411,
and an end plate 43.
Detailed Description
Embodiments of the invention are described below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
The first embodiment is as follows:
referring to fig. 1-2, the heat exchanger includes a first collecting assembly and a flat tube assembly 2 connected to the first collecting assembly, where the flat tube assembly 2 includes at least one flat tube 211, the flat tube 211 has a plurality of fluid channels therein, that is, the flat tube assembly 2 has a plurality of fluid channels therein, the first collecting assembly includes a first collecting member 11, the first collecting member 11 has a first substrate portion 111 and a first collecting portion 112 disposed on one side of the first substrate portion 111, the first collecting portion 112 is disposed substantially in a circular shape, of course, the first collecting portion 112 may be in a shape of a rectangle or a triangle, and preferably, the first collecting portion 112 and the first substrate portion 111 are disposed in a single piece, thereby saving process steps and improving sealing performance between the first collecting portion 112 and the first substrate portion 111, the first collecting portion 112 has a first collecting channel 1121 therein, the first substrate portion 111 is provided with a plurality of distribution channels 1111, and one distribution channel 1111 communicates with the first collecting channel 1121 and at least one fluid channel, the distribution channels 1111 are distributed along the extending direction of the first collecting portion 112, and the cross-sectional area of at least a portion of the distribution channels 1111 is gradually decreased in the extending direction of the first collecting portion 112, the extending direction of the first collecting portion 112 refers to the direction from the open end of the first collecting portion 112 to the closed end of the first collecting portion 112, for example, the first collecting portion 112 is provided with one open end and one closed end, and the extending direction of the first collecting portion 112 is from the open end of the first collecting portion 112 to the closed end of the first collecting portion 112; for another example, both ends of the first collecting portion 112 are closed, an opening is provided on a side wall of the first collecting portion 112, and the extending direction of the first collecting portion 112 is from the opening of the first collecting portion 112 to both ends of the first collecting portion 112, that is, the extending direction of the first collecting portion 112 is the flowing direction of the medium such as the refrigerant in the first collecting channel 1121.
The first collecting assembly includes a first substrate portion 111 and a first collecting portion 112, a distribution channel 1111 penetrating through the first substrate portion 111 and communicating with the first collecting channel 1121 is disposed on the first substrate portion 111, the refrigerant may enter the first circulation channel 131 through the distribution channel 1111 after entering the first collecting portion, and then enter the fluid channel through the first circulation channel 131, because the refrigerant is in a gas-liquid two-phase state when entering the first collecting portion 112, after entering the first collecting portion 112, because the momentum of the liquid refrigerant is large, the momentum of the gas refrigerant is relatively small, the liquid refrigerant may directly flow to the far end of the first collecting portion 112 (the end far away from the inlet of the first collecting portion), and because the momentum of the gas refrigerant is small, except for a small part, the small part is brought into the far end of the first collecting portion 112 by the liquid refrigerant, most of the gaseous refrigerant flows out from the middle front portion (near the inlet of the first collecting portion) of the first collecting portion 112, so that the refrigerant is unevenly distributed in each distribution channel 1111, and by reducing the sectional area of the distribution channel 1111 at the far end, namely, gradually reducing the sectional area of the distribution channel 1111 along the extending direction of the first collecting portion 112, part of the liquid refrigerant can flow back to the inlet near end in the first collecting portion 112 due to the gradually reducing sectional area of the distribution channel 1111, so as to achieve the effect of balancing the refrigerant mass flow, so that the refrigerant is more evenly distributed to the fluid channels, and the heat exchange efficiency of the heat exchanger is improved.
Referring to fig. 1-2, the first collecting assembly further includes a first connecting plate 12 and a first flow plate 13, the first flow plate 13 is disposed between the first connecting plate 12 and the first substrate portion 111, the first connecting plate 12 is provided with a plurality of first connecting hole channels (not shown) distributed along the extending direction of the first collecting portion 112, the first flow plate 13 is provided with a first flow channel 131, the first flow channel 131 is distributed along the extending direction of the first collecting portion 112, the flat tube assembly 2 includes a plurality of flat tubes 211, the flat tubes 211 are arranged side by side along the extending direction of the first collecting portion 112, a first flow path is formed between the flat tubes 211, so that a medium flowing through the first flow path exchanges heat with the medium flowing through the flow channel, and the number of the first connecting hole channels corresponds to the number of the flat tubes 211, be convenient for assemble and increase flat pipe 211 with the joint strength of first connecting plate 12, the one end of flat pipe assembly 2 stretches into first connection pore, first circulation passageway 131 intercommunication fluid passage with distribution channel 1111, avoid with first mass flow portion 112 directly assemble on flat pipe 211 and lead to first mass flow portion 112's diameter is great, occupies more space to lead to the problem that heat exchange efficiency is low.
Referring to fig. 1 to 2, the heat exchanger further includes a second collecting assembly including a second connection plate 32, a second flow plate 33, and a second collecting member 31, the second collecting member 31 having a second substrate portion 311 and a second collecting portion 312 disposed on one side of the second substrate portion 311, the second flow plate 33 being disposed between the second connection plate 32 and the second substrate portion 311, the second connection plate 32 being provided with a plurality of second connection hole passages (not shown) distributed along an extending direction of the second collecting portion 312, the other end of the flat tube assembly 2 extending into the second connection hole passages, the second substrate portion 311 being provided with collecting channels 3111, the collecting channels 3111 being distributed along the extending direction of the second collecting portion 312, the second collecting portion 312 having second collecting channels 3121 therein, the collecting channel 3111 is communicated with the second collecting channel 3121, the second flow channel 33 is provided with a second flow channel 132, the second flow channel 132 is distributed along the extending direction of the second collecting portion 312, the second flow channel 132 communicates the fluid channel with the collecting channel 3111, in order to increase the sealing performance between the end portion of the flat tube 211 and the first connecting pore and the second connecting pore, the end portion of the flat tube 211 is welded with the first connecting pore and the second connecting pore, after being welded with the first connecting pore, one end portion of the flat tube 211 partially extends into the first flow channel 131, so that the solder on both sides of the first connecting plate 12 is prevented from blocking the flat tube 211, that is, the fluid channel, and at the same time, since the flat tube 211 partially extends into the first flow channel 131 after being welded with the first connecting pore, the end portion of the flat tube 211 and both sides of the first connecting plate 12 with the solder can be welded together, so that the welding strength between the flat tube 211 and the first connecting plate 12 is increased, and a part of the other end portion of the flat tube 211 and the second connecting hole after being welded together extend into the second circulation passage 132, so that the solder on both sides of the second connecting plate 32 is prevented from blocking the flat tube 211, that is, blocking the fluid passage, meanwhile, because a part of the flat tube 211 and the second connecting hole after being welded together extend into the second circulation passage 132, the end portion of the flat tube 211 and both sides of the second connecting plate 32 with the solder can be welded together, so that the welding strength between the flat tube 211 and the second connecting plate 32 is increased, and the flow path of the refrigerant and other media in the heat exchanger is: the first collecting channel 1121 → the distribution channel 1111 → the first flow channel 131 → the fluid channel → the second flow channel 132 → the collection channel 3111 → the second collecting channel 3121.
The first connecting plate 12 is provided with a flange portion 121, the flange portion 121 extends from one end to the other end of the first connecting plate 12 in the extending direction of the first collecting portion 112, and the first collecting member 11, the first circulating plate 13 and the first connecting plate 12 are pressed and fixed by pressing the first substrate portion 111 after bending the flange portion 121. Similarly, the second connecting plate 32 may also be provided with a flanging portion 121, which is not described in detail herein.
The number of the distribution channels 1111 is equal to or greater than the number of the first circulation channels 131 and equal to or less than the number of the first connecting ports.
Example two:
referring to fig. 3, the heat exchanger includes a first collecting member 11, the first collecting member 11 includes a first substrate portion 111 and a first collecting portion 112 disposed on one side of the first substrate portion 111, the first collecting portion 112 is disposed substantially in a circular shape, however, the first collecting portion 112 may have a rectangular or triangular shape, and the first collecting portion 112 and the first substrate portion 111 are preferably disposed in a single piece, thereby saving processes and improving sealing performance between the first collecting portion 112 and the first substrate portion 111, the first collecting portion 112 includes a first collecting channel 1121 therein, the first substrate portion 111 is provided with a plurality of distribution channels 1111, the distribution channels 1111 are distributed along an extending direction of the first collecting portion 112, and a cross-sectional area of the distribution channels 1111 is gradually reduced in the extending direction of the first collecting portion 112, the first current collecting member 11 further includes a current collecting portion 113, the current collecting portion 113 and the first current collecting portion 112 are arranged side by side, a current collecting channel 1131 is arranged in the current collecting portion 113, the first substrate portion 111 is provided with a plurality of communication holes 1112 communicated with the current collecting channel 1131, and the first current collecting portion 112 and the current collecting portion 113 are both arranged on the first substrate portion 111, so that the heat exchanger is conveniently communicated with an external pipeline, and an installation space is saved.
Referring to fig. 3, the first collecting assembly further includes a first connecting plate 12 and a first flow plate 13, the first flow plate 13 is disposed between the first connecting plate 12 and the first substrate portion 111, the first connecting plate 12 is provided with a plurality of first connecting holes and a plurality of second connecting holes, the first connecting holes and the second connecting holes are respectively distributed along an extending direction of the first collecting portion 112, the first connecting holes and the second connecting holes are disposed side by side, the first flow plate 13 is respectively provided with a first flow passage 131 and a second flow passage 132, the first flow passage 131 and the second flow passage 132 are respectively distributed along the extending direction of the first collecting portion 112, the first flow passage 131 and the second flow passage 132 are disposed side by side, the flat tube assembly 2 includes a first flat tube group 21 and a second flat tube group 22 disposed side by side, the first flat tube group 21 includes a plurality of flat tubes 211 arranged side by side in the extending direction of the first collecting portion 112, the flat tubes 211 of the first flat tube group 21 correspond to the first connecting channels one by one, the second flat tube group 22 includes a plurality of flat tubes 211 arranged side by side in the extending direction of the first collecting portion 112, the flat tubes 211 of the second flat tube group 22 correspond to the second connecting channels one by one, one end of the first flat tube group 21 extends into the first connecting channel, one end of the second flat tube group 22 extends into the second connecting channel, the flat tubes 211 in the first flat tube group 21 and the flat tubes 211 in the second flat tube group 22 are welded with the first connecting channel and the second connecting channel respectively, so as to improve the connecting strength and the sealing performance of the flat tube group 2 and the first connecting plate 12, and one first circulation channel 131 communicates one distribution channel 1111 and one flat tube 211, one of the second flow channels 132 is communicated with one of the communication holes 1112, that is, the distribution channel 1111, the first flow channel 131 and the flat tubes 211 of the first flat tube group 21 correspond to each other one by one, and the communication holes 1112, the second flow channel 132 and the flat tubes 211 of the second flat tube group 22 correspond to each other one by one, so that media such as the refrigerant are distributed in the heat exchanger more uniformly, and the heat exchange efficiency of the heat exchanger is improved.
Referring to fig. 3, the first connection plate 12 is provided with a flange portion 121, the flange portion 121 extends from one end to the other end of the first connection plate 12 in the extending direction of the first collecting portion 112, and the first collecting member 11, the first circulating plate 13 and the first connection plate 12 are pressed and fixed by pressing the first base plate portion 111 after bending the flange portion 121, so as to facilitate assembly.
Referring to fig. 3, the heat exchanger further includes a baffle assembly, which includes a baffle plate 41, a second connecting plate 32 and an end plate 43, the baffle plate 41 is arranged between the second connecting plate 32 and the end plate 43, the second connecting plate 32 is provided with a plurality of third connecting portholes (not shown), the third connecting hole channels are distributed along the extending direction of the first collecting portion 112, the third connecting hole channels are arranged in two rows, the baffle plate 41 is provided with baffle channels 411, the baffle channels 411 are distributed along the extending direction of the first collecting portion 112, the other end of the first flat pipe group 21 extends into one of the third connecting pore canals, the other end of the second flat pipe group extends into the other third connecting pore canal, the baffle passage 411 communicates the fluid passage of the first flat tube group 21 and the fluid passage of the second flat tube group 22.
Referring to fig. 3, a flange portion 121 is disposed on the second connecting plate 32, and in the extending direction of the first collecting portion 112, the flange of the flange portion 121 extends from one end of the second connecting plate 32 to the other end, and the end plate 43, the baffle plate 41 and the second connecting plate 32 are pressed and fixed by pressing the end plate 43 after bending the flange portion 121, so as to facilitate assembly.
The flow path of media such as refrigerant in the heat exchanger is as follows: the first collecting channel 1121 → the distributing channel 1111 → the first flow channel 131 → the fluid channel in the first flat tube group 21 → the baffle channel 411 → the fluid channel in the second flat tube group 22 → the second flow channel 132 → the communication hole 1112 → the collecting channel 1131, thereby forming a "U" shaped flow path, and in the case where the length of the heat exchanger is constant, by providing the first collecting portion 112 and the collecting portion 113 together on the first base plate portion 111, the length of the flat tube 4 can be effectively increased, the amount of heat exchange can be increased, and the heat exchange efficiency of the heat exchanger assembly can be improved.
Example three:
referring to fig. 4, the heat exchanger includes a first collecting assembly, which includes a first collecting member 11, the first current collecting member 11 includes a first substrate portion 111 and a first current collecting portion 112 provided on one side of the first substrate portion 111, the first current collecting portion 112 is provided in a substantially circular shape, of course, the shape of the first collecting portion 112 may be rectangular, triangular, or the like, and preferably, the first collecting portion 112 and the first substrate portion 111 are formed as a single piece, which saves the process and improves the sealing property between the first collecting portion 112 and the first substrate portion 111, the first collecting portion 112 has a first collecting channel 1121 therein, the first substrate portion 111 is provided with a plurality of distribution channels 1111, the distribution channels 1111 are distributed along the extending direction of the first collecting portion 112, and the sectional area of the distribution channels 1111 is gradually reduced in the extending direction of the first collecting portion 112.
Referring to fig. 4, the first collecting assembly further includes a first connection plate 12 and a first circulation plate 13, the first circulation plate 13 is disposed between the first connection plate 12 and the first substrate portion 111, the first connection plate 12 is provided with a plurality of first connection holes, a plurality of second connection holes, and a plurality of third connection holes, the first connection holes, the second connection holes, and the third connection holes are respectively distributed along an extending direction of the first collecting portion 112, the first connection holes, the second connection holes, and the third connection holes are disposed side by side, the flat tube assembly 2 includes a first flat tube group 21, a second flat tube group 22, and a third flat tube group 23 disposed side by side, the first flat tube group 21 includes a plurality of flat tubes 211 disposed side by side in the extending direction of the first collecting portion 112, the second flat tube group 22 includes a plurality of flat tubes 211 disposed side by side in the extending direction of the first collecting portion 112, the third flat tube group 23 includes a plurality of flat tubes 211 arranged side by side in the extending direction of the first collecting portion 112, one end of the first flat tube group 21 extends into the first connecting hole, one end of the second flat tube group 22 extends into the second connecting hole, one end of the third flat tube group 23 extends into the third connecting hole, the first circulation plate 13 is provided with a first circulation passage 131 and a second circulation passage 132 respectively, the first circulation passage 131 and the second circulation passage 132 are distributed along the extending direction of the first collecting portion 112 respectively, the first circulation passage 131 and the second circulation passage 132 are arranged side by side, the first substrate portion 111 seals the opening of the second circulation passage 132 far away from the flat tubes 211, the first circulation passage 131 corresponds to the flat tubes 211 of the first flat tube group 21, that is, the first circulation passage 131 communicates the distribution passage 1111 and the fluid passage in the first flat tube group 21, the second circulation passage 132 corresponds to the flat tubes 211 of the second flat tube group 22 and the third flat tube group 23, that is, the second circulation passage 132 communicates with the fluid passages in the second flat tube group 22 and the third flat tube group 23, that is, the second circulation passage 132 communicates the fluid passages in the second flat tube group 22 and the fluid passages in the third flat tube group 23.
Referring to fig. 4, the heat exchanger further includes a second collecting member, the second collecting member further includes a second connection plate 32, a second flow plate 33, and a second collecting member 31, the second collecting member 31 has a second substrate portion 311 and a second collecting portion 312 disposed on one side of the second substrate portion 311, the second flow plate 33 is disposed between the second connection plate 32 and the second substrate portion 311, the second connection plate 32 is provided with a plurality of fourth connecting hole passages (not shown), fifth connecting hole passages (not shown), and sixth connecting hole passages (not shown), the fourth connecting hole passages, the fifth connecting hole passages, and the sixth connecting hole passages are distributed along an extending direction of the second collecting portion 312, the other end of the first flat tube group 21 extends into the fourth connecting hole passage, the other end of the second flat tube group 22 extends into the fifth connecting hole passage, the other end of the third flat tube group 23 extends into the sixth connecting hole, the second substrate portion 311 is provided with a collecting channel 3111, the collecting channel 3111 is distributed along the extending direction of the second collecting portion 312, the second collecting portion 312 is provided with a second collecting channel 3121 therein, the second collecting channel 3121 is communicated with the collecting channel 3111, the second flow plate 33 is provided with a third flow channel 331 and a fourth flow channel 332, the third flow channel 331 and the fourth flow channel 332 are distributed along the extending direction of the second collecting portion 312, the third flow channel 331 and the fourth flow channel 332 are arranged side by side, the second substrate portion 311 seals the opening of the fourth flow channel 332 away from the flat tube 211, the third flow channel 331 corresponds to the flat tube 211 of the third flat tube group 23, that is, the third flow channel 331 is communicated with the flat tube 211 (the third flat tube group 23) in the sixth connecting hole The fourth flow channel 332 corresponds to the first flat tube group 21 and the second flat tube group 22, that is, the fourth flow channel 332 communicates the fluid channel in the first flat tube group 21 and the fluid channel in the second flat tube group 22, and the second base plate portion 311 seals the opening of the fourth flow channel 332 away from the flat tube 211.
Of course, the first connecting plate 12 and the second connecting plate 32 may be provided with a flanging portion 121, which is not described in detail herein.
The flow path of media such as refrigerant in the heat exchanger is as follows: the first collecting channel 1121 → the distribution channel 1111 → the first flow channel 131 → the fluid channel in the first flat tube group 21 → the fourth flow channel 332 → the fluid channel in the second flat tube group 22 → the second flow channel 132 → the fluid channel in the third flat tube group 23 → the third flow channel 331 → the collection channel 3111 → the second collecting channel 3121 to form one "S" shaped flow path, thereby forming a plurality of rows of heat exchanger modules in series to increase the amount of heat exchange.
Referring to fig. 5, the distribution channel 111 may also be in other shapes than circular, such as a straight shape, and the shape and number of the distribution channels may be designed according to specific requirements, which is not described herein again.
The invention also provides a heat exchanger assembly method, taking the first embodiment as an example: the heat exchanger comprises a flat tube assembly, and the first collecting assembly and the second collecting assembly which are connected with the flat tube assembly, wherein the first collecting assembly comprises a first collecting component, the first collecting component comprises a first substrate portion and a first collecting portion arranged on one side of the first substrate portion, the first collecting assembly further comprises a first connecting plate and a first circulating plate, the first circulating plate is arranged between the first connecting plate and the first substrate portion, the second collecting assembly comprises a second connecting plate, a second circulating plate and a second collecting component, the second collecting component comprises a second substrate portion and a second collecting portion arranged on one side of the second substrate portion, and the second circulating plate is arranged between the second connecting plate and the second substrate portion, and the assembling method of the heat exchanger comprises the following steps:
the first current collecting component, the first circulation plate and the first connecting plate are sequentially laminated together, and two side edges of the first connecting plate are bent towards the direction of the first current collecting part and then are bent inwards to form a flanging part so as to press the first substrate part to press and fix the first current collecting component, the first circulation plate and the first connecting plate;
the second flow collecting component, the second flow plate and the second connecting plate are sequentially laminated together, and two side edges of the second connecting plate are bent towards the direction of the second flow collecting part and then are bent inwards to form flanging parts so as to press the second substrate part to press and fix the second flow collecting component, the second flow plate and the second connecting plate;
and the first connecting assembly and the second connecting assembly are welded after being assembled at two ends of the flat pipe assembly.
The first collecting component, the first circulating plate and the first connecting plate are welded after being compressed by the flanging parts, so that a clamp on one side of the first collecting component can be omitted, the cost is reduced, and meanwhile, the first collecting component can be prevented from loosening during welding, and the welding strength of the first collecting component is improved.
The second embodiment and the third embodiment are also applicable to the above assembling method, and are not described in detail here.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (13)
1. A heat exchanger comprising a first collecting block and a flat block connected to the first collecting block, the flat block including at least one flat tube, the flat block having a plurality of fluid passages therein, wherein the first collecting block includes a first collecting member having a first base plate portion and a first collecting portion provided on one side of the first base plate portion, the first collecting portion having a first collecting passage therein, the first base plate portion being provided with a plurality of distribution passages, and one of the distribution passages communicating the first collecting passage and at least one of the fluid passages, the distribution passages being distributed along an extending direction of the first collecting portion, and a cross-sectional area of at least a part of the distribution passages being gradually reduced in the extending direction of the first collecting portion.
2. The heat exchanger of claim 1, wherein the first current collecting assembly further comprises a first connection plate and a first flow plate, the first communication plate is provided between the first connection plate and the first base plate portion, the first connection plate is provided with a plurality of first connection holes, the first connection channels are distributed along the extending direction of the first collecting part, the first flow-through plate is provided with a first flow-through channel, the first circulation channels are distributed along the extension direction of the first collecting part, the flat tube component comprises a plurality of flat tubes, the flat tubes are arranged side by side in the extending direction of the first collecting part, the number of the first connecting pore channels corresponds to the number of the flat tubes, one end of the flat tube component extends into the first connecting pore channel, and the first flow channel is communicated with the fluid channel and the distribution channel.
3. The first manifold assembly of claim 2 wherein the number of distribution channels is equal to or greater than the number of first flow channels and equal to or less than the number of first connecting channels.
4. The heat exchanger according to claim 2 or 3, wherein a flange portion is provided on the first connection plate, the flange portion extends from one end of the first connection plate to the other end in an extending direction of the first collecting portion, and the first collecting member, the first flow plate, and the first connection plate are pressed and fixed by pressing the first base plate portion after bending the flange portion.
5. The heat exchanger according to claim 4, further comprising a second collecting block, the second collecting block further comprising a second connecting plate, a second flow plate and a second collecting portion, the second flow plate being disposed between the second connecting plate and the second base plate portion, the second connecting plate being provided with a plurality of second connecting holes distributed along an extending direction of the second collecting portion, and a second collecting member having a second collecting channel extending from the other end of the flat tube assembly into the second connecting hole, the second base plate portion being provided with a collecting channel distributed along the extending direction of the second collecting portion, the second collecting portion having a second collecting channel therein, the collecting channel being in communication with the second collecting channel, the second circulation plate is provided with second circulation channels, the second circulation channels are distributed along the extending direction of the second collecting portion, and the second circulation channels are communicated with the fluid channels and the collecting channels.
6. The heat exchanger according to claim 4, wherein the first collecting member further has a joining portion, the joining portion is provided side by side with the first collecting portion, a joining channel is provided in the joining portion, the first base plate portion is provided with a plurality of communication holes communicating with the joining channel, the first connecting plate is provided with a plurality of second connecting hole passages, the second connecting hole passages are distributed along an extending direction of the first collecting portion, the first flow plate is provided with a second flow passage, the second flow passage is distributed along the extending direction of the first collecting portion, one end of the flat tube assembly protrudes into the second connecting hole passages, and the second flow passage communicates the fluid channel with the communication holes.
7. The heat exchanger of claim 6, further comprising a baffle assembly, wherein the flat tube assembly comprises a first flat tube set and a second flat tube set arranged side by side, the first flat tube set comprises a plurality of flat tubes arranged side by side in the extending direction of the first collecting portion, the second flat tube set comprises a plurality of flat tubes arranged side by side in the extending direction of the first collecting portion, one end of the first flat tube set extends into the first connecting hole, the other end of the first flat tube set extends into the baffle assembly, one end of the second flat tube set extends into the second connecting hole, and the other end of the second flat tube set extends into the baffle assembly.
8. The heat exchanger of claim 7, wherein the baffle assembly comprises a baffle plate, a second connecting plate and an end plate, the baffle plate is disposed between the second connecting plate and the end plate, the second connecting plate is provided with a plurality of third connecting holes, the third connecting holes are distributed along the extending direction of the first flow collecting portion, the baffle plate is provided with a baffle channel, the baffle channel is distributed along the extending direction of the first flow collecting portion, the other end of the first flat tube group extends into the third connecting hole, the other end of the second flat tube group extends into the third connecting hole, and the baffle channel is communicated with the fluid channel of the first flat tube group and the fluid channel of the second flat tube group.
9. The heat exchanger according to claim 8, wherein the second connecting plate is provided with a flange portion, a flange of the flange portion extends from one end of the second connecting plate to the other end in the extending direction of the first collecting portion, and the end plate, the baffle plate and the second connecting plate are compressed and fixed by compressing the flange portion with the end plate after bending. The first collecting component and the shunt tube component are respectively arranged at two end parts of the flat tube.
10. The heat exchanger according to claim 4, wherein the first connection plate is provided with a plurality of second connection hole passages and a plurality of third connection hole passages, the second connection hole passages and the third connection hole passages are distributed along an extending direction of the first collecting portion, one end of the flat tube assembly extends into the second connection hole passages and the third connection hole passages, the first circulation plate is provided with a second circulation passage, the second circulation passage communicates with the fluid passage of the flat tube located in the second connection hole passages, the second circulation passage communicates with the fluid passage of the flat tube located in the third connection hole passages, and the first base plate portion seals an opening of the second circulation passage, the opening being away from the flat tube.
11. The heat exchanger of claim 10, further comprising a second current collecting assembly, the flat pipe component comprises a first flat pipe component, a second flat pipe component and a third flat pipe component which are arranged side by side, the first flat tube group includes a plurality of flat tubes arranged side by side in the extending direction of the first collecting portion, the second flat tube group includes a plurality of flat tubes arranged side by side in the extending direction of the first collecting portion, the third flat tube group includes a plurality of flat tubes arranged side by side in the extending direction of the first collecting portion, one end of the first flat pipe group extends into the first connecting pore canal, one end of the second flat pipe group extends into the second connecting pore canal, one end of the third flat pipe group extends into the third connecting pore, and the other end of the first flat pipe group, the other end of the second flat pipe group and the other end of the third flat pipe group extend into the second current collecting assembly.
12. The heat exchanger according to claim 11, wherein the second manifold assembly includes the second manifold assembly further including a second connection plate, a second flow plate, and a second manifold member, the second manifold member having a second base plate portion and a second manifold portion provided on one side of the second base plate portion, the second flow plate being provided between the second connection plate and the second base plate portion, the second connection plate being provided with a plurality of fourth, fifth, and sixth connection ports, the fourth, fifth, and sixth connection ports being distributed along an extending direction of the second manifold portion, the other end of the first flat tube group extending into the fourth connection port, the other end of the second flat tube group extending into the fifth connection port, the other end of the third flat tube group extending into the sixth connection port, the second substrate portion is provided with collecting channels distributed along an extending direction of the second collecting portion, the second collecting part is internally provided with a second collecting channel which is communicated with the second collecting channel, the second flow plate is provided with a third flow channel and a fourth flow channel which are distributed along the extending direction of the second collecting part, the third flow channel is communicated with the fluid channel of the flat pipe positioned in the sixth connecting pore channel and the collecting channel, the fourth flow channel is communicated with the fluid channel of the flat pipe positioned in the fourth connecting pore channel, the fourth circulation channel is communicated with the fluid channels of the flat pipes in the fifth connecting pore channel, and the second substrate portion seals the opening, far away from the flat pipes, of the fourth circulation channel.
13. A heat exchanger assembling method, characterized in that the heat exchanger includes a flat tube assembly, and the first collecting assembly connected to the flat tube assembly, the first collecting assembly includes a first collecting member having a first base plate portion and a first collecting portion provided on one side of the first base plate portion, the first collecting assembly further includes a first connecting plate and a first flow plate, the first flow plate is provided between the first connecting plate and the first base plate portion, the first connecting plate is provided with a flange portion, and the flange portion extends from one end of the first connecting plate to the other end in an extending direction of the first collecting portion, the heat exchanger assembling method includes:
the first collecting component, the first circulating plate and the first connecting plate are sequentially laminated together, and the first base plate part is pressed by the flanging part so that the first collecting component, the first circulating plate and the first connecting plate are pressed and fixed;
the first connecting assembly is assembled to the end part of the flat pipe assembly through a first connecting plate, and is fixed through a clamp and then placed into a furnace for welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105347.8A CN113280648A (en) | 2020-02-20 | 2020-02-20 | Heat exchanger and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105347.8A CN113280648A (en) | 2020-02-20 | 2020-02-20 | Heat exchanger and assembling method |
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| CN113280648A true CN113280648A (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010105347.8A Pending CN113280648A (en) | 2020-02-20 | 2020-02-20 | Heat exchanger and assembling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322372A (en) * | 2021-12-18 | 2022-04-12 | 上海马勒热系统有限公司 | Electric automobile double-fluid heat exchanger |
-
2020
- 2020-02-20 CN CN202010105347.8A patent/CN113280648A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322372A (en) * | 2021-12-18 | 2022-04-12 | 上海马勒热系统有限公司 | Electric automobile double-fluid heat exchanger |
| CN114322372B (en) * | 2021-12-18 | 2024-01-30 | 上海马勒热系统有限公司 | Double-fluid heat exchanger of electric automobile |
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