CN212950038U

CN212950038U - Indoor condenser

Info

Publication number: CN212950038U
Application number: CN202021660406.XU
Authority: CN
Inventors: 吴邦政; 李明; 王永
Original assignee: NANJING XIEZHONG AUTO-AIRCONDITIONER (GROUP) CO LTD
Current assignee: Xiezhong International Thermal Management System Jiangsu Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-04-13
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses an indoor condenser, which comprises an inlet pipe, an outlet pipe, a left communicating component, a bottom plate, a sealing plate, a flat pipe and a heat dissipation belt; the flat pipes which are horizontally placed are arranged in a regular and even number row along the vertical direction, and the upper side and the lower side of each flat pipe are provided with heat dissipation belts; the collecting pipe in the left communicating assembly is vertically placed and connected with the inlet pipe and the outlet pipe, a row of first flat pipe grooves are formed in the collecting pipe in the vertical direction, a row of second flat pipe grooves are formed in the bottom plate in the vertical direction, two ends of each flat pipe are connected with the first flat pipe grooves and the second flat pipe grooves in a matched mode respectively, a sealing plate is arranged on the outer side of the bottom plate, the middle portion of the sealing plate protrudes outwards to form at least one row of overflow grooves in the vertical direction, and the positions of the two rows of second flat pipe grooves in each row of overflow grooves correspond to the positions of the two rows of second flat pipe. The utility model discloses well plate-type passageway that adopts bottom plate and shrouding riveting mutually to form replaces the pressure manifold, can effectually save space, increases the windward area simultaneously in limited space, improves the heat transfer volume.

Description

Indoor condenser

Technical Field

The utility model belongs to new energy automobile heat management system core heat exchanger and sub-part field thereof, in particular to indoor condenser.

Background

The indoor condenser is a key part used in a new energy pure electric or fuel-free engine type heat management system, and a condenser in an air-conditioning heat pump system is used as a heat source in a vehicle-mounted HVAC (heating ventilation and heating) system because no hot water is used as a heating heat source, and the condenser is the indoor condenser.

As shown in fig. 1, the existing indoor condenser can be generally split into collecting pipes, flat pipes, heat dissipation belts, end caps, inlet and outlet pipes and a pressure plate, the main structure adopts a left communicating component and a right communicating component, the left communicating component and the right communicating component respectively consist of two collecting pipes and end caps, and the inlet pipe and the outlet pipe are respectively connected with the two collecting pipes of the left communicating component; the left communicating component and the right communicating component are connected through two rows of flat pipes, and a heat dissipation belt is arranged between the flat pipes to form the double-row parallel flow heat exchanger. The structure is relatively simple, consistent processing and assembly are facilitated, and manufacturability is good.

The basic principle of the operation of the indoor condenser is as follows: the inlet pipe is communicated with an exhaust port of a compressor in an air-conditioning heat pump system, a medium refrigerant is high-temperature high-pressure superheated gas, after entering an indoor condenser, heat is transferred to the outer wall of the flat pipe and the heat dissipation belt through the flat pipe, the outer wall of the flat pipe and the heat dissipation belt exchange heat with air which is forced to pass through, so that the air is heated, and the heated air is conveyed into a vehicle, so that the requirement of heating the air in the vehicle is met.

Because the indoor condenser is arranged in the vehicle-mounted HVAC, the space is limited, and in the limited space, an effective passing area for air heat exchange is an area formed by the flat pipes and the heat dissipation belts, and is called a windward area below. In a limited area, if the pipe diameter of the collecting pipe is larger, the windward area is smaller, and if the pipe diameter of the collecting pipe is smaller, the wind area is larger, but the collecting pipe is connected with a flat pipe and needs to bear the effects of assembly and high pressure resistance, so that the pipe diameter of the collecting pipe is reduced to a certain degree and cannot be reduced, and the bottleneck for improving the heat exchange capacity of the indoor condenser is formed.

SUMMERY OF THE UTILITY MODEL

The technical purpose is as follows: to the problem that exists among the prior art, the utility model discloses an indoor condenser adopts the board-like passageway that bottom plate and shrouding riveted mutually formed to replace the pressure manifold, can effectually save space, increases windward area simultaneously in limited space, improves the heat transfer volume.

The technical scheme is as follows: the utility model adopts the following technical scheme: an indoor condenser is characterized by comprising a pipe inlet, a pipe outlet, a left communicating component, a bottom plate, a sealing plate, a flat pipe and a heat dissipation belt; wherein:

the flat tubes horizontally placed are arranged into even and even rows along the vertical direction, the number of the flat tubes in each row is the same, and the upper side and the lower side of each flat tube are provided with heat dissipation belts;

the left communication assembly is connected with the inlet pipe and the outlet pipe and comprises collecting pipes with the same number as the flat pipe rows, each collecting pipe is vertically arranged, an end cover is arranged at a pipe opening, a row of first flat pipe grooves are formed in each collecting pipe in the vertical direction, and each row of first flat pipe grooves are matched and connected with one end of each row of flat pipes;

the bottom plate is provided with second flat pipe grooves along the vertical direction, the row number of the second flat pipe grooves is the same as the row number of the flat pipes, each row of the second flat pipe grooves is connected with the other end of each row of the flat pipes in a matched mode, a sealing plate is arranged on the outer side of the bottom plate, the sealing plate protrudes outwards to form at least one row of overflow grooves along the vertical direction, and the positions of each row of the overflow grooves correspond to the positions of at least two rows of the second flat pipe grooves on the bottom plate.

Preferably, the collecting pipes in the left communicating assembly are not communicated with each other, at least one collecting pipe is connected with the inlet pipe, the remaining at least one collecting pipe is connected with the outlet pipe, and the sealing plate is provided with a row of overflow grooves which correspond to all rows of second flat grooves on the bottom plate in position; the collecting pipe connected with the inlet pipe and the corresponding flat pipe form an input channel, the collecting pipe connected with the outlet pipe and the corresponding flat pipe form an output channel, and the input channel and the output channel are communicated through the overflowing groove.

Preferably, two collecting pipes positioned at the edge in the left communicating assembly are respectively connected with the inlet pipe and the outlet pipe, every two collecting pipes positioned at the middle part are communicated with each other, the number of rows of overflowing grooves arranged on the sealing plate is half of the number of rows of second flat pipe grooves on the bottom plate, and each row of overflowing grooves corresponds to the two rows of second flat pipe grooves on the bottom plate; the collecting pipe connected with the inlet pipe and the corresponding flat pipe form an input channel, the collecting pipe connected with the outlet pipe and the corresponding flat pipe form an output channel, other collecting pipes and the corresponding flat pipes form an intermediate channel, the input channel and the intermediate channel, the output channel and the intermediate channel are respectively communicated through the overflowing grooves, and the intermediate channels are communicated through the collecting pipe 5 and the overflowing grooves 82 according to U-shaped channels.

Preferably, the riveting piece is arranged on the outer side of the periphery of the bottom plate, the riveting groove is formed in the periphery of the sealing plate, and the bottom plate and the sealing plate are connected in a one-to-one matching mode through the riveting piece and the riveting groove.

Preferably, the second flat tube groove on the bottom plate is provided with a flanging which is outward along the horizontal direction, and the horizontal height range of the flanging is 1-3.5 mm.

Preferably, the upper side of the heat dissipation belt positioned at the top and the lower side of the heat dissipation belt positioned at the bottom are also provided with protective plates.

Preferably, the other end of the inlet pipe and the other end of the outlet pipe are respectively connected with the pressing plate.

Preferably, all connections of the indoor condenser are welded with Noclock aluminum flux.

Preferably, the heat dissipation belt is provided with a window.

Preferably, each first flat pipe groove on the collecting main and each second flat pipe groove on the bottom plate have the same size, the horizontal length range is 8-25mm, the vertical height range is 1-3mm, and the horizontal length range of each overflow groove on the sealing plate is 20-55 mm.

Has the advantages that: the utility model discloses following beneficial effect has:

1. the utility model adopts the combination of the bottom plate and the closing plate to replace the collecting pipe to form a right communicating component, and can effectively save space, save materials and reduce weight when the performance requirements of the indoor condenser are the same, namely the windward area is the same, thereby realizing light weight;

2. the utility model can increase the windward area of the indoor condenser in the limited space, improve the heat exchange quantity and improve the performance;

3. the utility model discloses be equipped with the turn-ups outside the flat tub of bottom plate, improved the stability that flat pipe placed in flat tub;

4. the utility model discloses an all junctions all adopt Noclock aluminium solder to weld in Noclock brazing furnace, make all gaps all fill up and do not produce the leakage, have improved indoor condenser's leakproofness.

Drawings

FIG. 1 is a schematic diagram of a prior art internal condenser;

FIG. 2 is a front view of the condenser in the middle chamber of the present invention;

FIG. 3 is an exploded view of the condenser of the present invention;

FIG. 4 is a top view of the condenser in the middle chamber of the present invention;

FIG. 5 is a structural diagram of the bottom plate of the condenser in the middle chamber according to the present invention;

FIG. 6 is a structural diagram of a sealing plate of the condenser in the middle room according to the present invention;

FIG. 7 is a schematic diagram of the left communicating component of the condenser in the middle chamber of the present invention;

the pressure plate 1 is connected with the inlet pipe 2, the outlet pipe 3 is connected with the left communicating component 4, the collecting pipe 5 is connected with the end cover 6, the bottom plate 7 is connected with the sealing plate 8, the flat pipes 9 are arranged, the heat dissipation belt 10 is arranged, the protective plate 11 is arranged, the first flat pipe groove 51 is arranged, the riveting piece 71 is arranged, the second flat pipe groove 72 is arranged, the flanging 73 is arranged, the riveting groove 81 is arranged, and the overflowing groove 82 is arranged.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model discloses an indoor condenser, as shown in fig. 2 and 3, including advancing pipe 2, exit tube 3, left intercommunication subassembly 4, bottom plate 7, shrouding 8, flat pipe 9 and heat dissipation area 10, wherein:

the flat tubes 9 horizontally placed are arranged in even and positive rows along the vertical direction, the number of the flat tubes 9 in each row is the same, a matrix of the flat tubes 9 in the even and positive rows is formed, and the left end and the right end of the matrix of the flat tubes 9 are respectively connected with the left communicating component 4 and the bottom plate 7. The upper side and the lower side of each flat pipe 9 are respectively provided with a heat dissipation belt 10, the heat dissipation belt 10 is provided with a window, and the upper side of the heat dissipation belt 10 positioned at the top and the lower side of the heat dissipation belt 10 positioned at the bottom are also provided with guard plates 11 for protection.

As shown in fig. 7, the left communicating component 4 is connected to the inlet pipe 2 and the outlet pipe 3, and the other ends of the inlet pipe 2 and the outlet pipe 3 are respectively connected to the pressure plate 1 to provide power for the circulation of the refrigerant. The left communicating component 4 comprises collecting pipes 5 with the same number as the flat pipes 9, each collecting pipe 5 is vertically placed, an end cover 6 is arranged on each pipe opening, a row of first flat pipe grooves 51 are formed in each collecting pipe 5 in the vertical direction, and one ends of the flat pipes 9 in the even rows are arranged in the first flat pipe grooves 51 in the collecting pipes 5 and are connected with the flat pipe grooves in a matched mode.

Bottom plate 7 and shrouding 8 preassembleing constitute board-like passageway, and this board-like passageway can assemble flat pipe 9 of connection, and can switch on the refrigerant fluid in adjacent flat pipe 9 of arranging, wherein: as shown in fig. 5, a riveting member 71 is arranged on the outer side of the periphery of the bottom plate 7, a plurality of second flat pipe grooves 72 which are fixed regularly are arranged on the bottom plate 7, the second flat pipe grooves 72 are divided into even-numbered rows which are the same as the flat pipes 9 along the vertical direction, and the other ends of the even-numbered rows of the flat pipes 9 are arranged in the second flat pipe grooves 72 on the bottom plate 7 and are connected with the same in a matching manner. The second flat pipe groove 72 on the bottom plate 7 is provided with a flanging 73 outward along the horizontal direction, in an embodiment of the present invention, each first flat pipe groove 51 is the same as each second flat pipe groove 72 in size, the horizontal length range is 8-25mm, the vertical height range is 1-3mm, and the horizontal width range of the flanging 73 is 1-3.5 mm.

A sealing plate 8 is arranged on the outer side of the bottom plate 7, as shown in fig. 6, the middle part of the sealing plate 8 protrudes outwards to form at least one row of overflow grooves 82 along the vertical direction, each row of overflow grooves 82 corresponds to the positions of at least two rows of second flat pipe grooves 72 on the bottom plate 7, and in one embodiment of the present invention, the horizontal length range of each overflow groove 82 is 20-55 mm; the horizontal width of the overflow groove 82 is substantially consistent with the horizontal height of the outward flange 73 of the second flat tube groove 72, and the requirements of mechanical assembly and aluminum alloy Noclock welding process are generally required to be met. Because the punching overflow groove 82 is arranged on the sealing plate 8, the required space size can be far smaller than the diameter of the collecting pipe, so that the space can be saved, and the aim of increasing the windward area in the limited space can be fulfilled. Riveting grooves 81 are further formed in the periphery of the sealing plate 8, and the bottom plate 7 and the sealing plate 8 are connected in a one-to-one matching mode through the riveting pieces 71 and the riveting grooves 81.

An indoor condenser in, all junctions all adopt Noclock aluminium welding agent to weld, with all assembly gap whole tamps, realize that all connection gaps have the solder to fill, form inclosed internal circulation passageway, and can not produce the leakage.

An indoor condenser, its installation procedure as follows:

1. the bottom plate 7 and the closing plate 8 are riveted into a plate type channel in advance, and the collecting pipe 5 is riveted into the left communicating component 4 in advance;

2. arranging flat pipes 9, heat dissipation belts 10 and side plates 11 in a core matrix by adopting a tool fixture, and then loading the core matrix into a first flat pipe groove 51 of the left communication assembly and a second flat pipe groove 72 of the plate-type channel, so that the core assembly is completed;

3. the left communicating component 4 is respectively connected with the inlet pipe 2 and the outlet pipe 3, the inlet pipe 2 and the outlet pipe 3 are connected with the pressing plate 1, the fixed pipe enters a Noclock brazing furnace for brazing, all assembly gaps are fully filled, all connecting gaps are filled with welding flux, and the whole core body forms a closed inner circulating channel without leakage.

In an embodiment of the present invention, as shown in fig. 2, the collecting pipes 5 in the left communicating assembly 4 are not communicated with each other, at least one collecting pipe 5 is connected to the inlet pipe 2, the remaining collecting pipe 5 is connected to the outlet pipe 3, a row of overflow grooves 82 is provided on the closing plate 8, the row of overflow grooves 82 corresponds to all the rows of second flat pipe grooves 72 on the bottom plate 7, that is, the heights are the same, and the horizontal length of the overflow grooves 82 is at least equal to the horizontal length between two ends of the two rows of second flat pipe grooves 72 at the extreme edge; the collecting pipe 5 connected with the inlet pipe 2 and the corresponding flat pipe 9 form an input channel, the collecting pipe 5 connected with the outlet pipe 3 and the corresponding flat pipe 9 form an output channel, and the input channel and the output channel are communicated through the overflow groove 82. The indoor condenser is used as a heat exchanger, and when the indoor condenser works, the refrigerant with high temperature and high pressure inside exchanges heat with low-temperature air flowing through the core body from the outside. The refrigerant flows into the input channel from the inlet pipe 2, flows into the output channel through the flow groove 82 after flowing out of the input channel, and flows out from the outlet pipe 3 after flowing out of the output channel, so that the circulation of the refrigerant is realized; the refrigerant passes through on flat 9 inner walls of pipe transmit outer wall and heat dissipation area 10, and the air comes out the heat exchange with flat 9 outer walls of pipe and the circulation contact of heat dissipation area 10, realizes the purpose of air heating.

In an embodiment of the present invention, as shown in fig. 4, two collecting pipes 5 located at the edge in the left communicating assembly 4 are respectively connected to the inlet pipe 2 and the outlet pipe 3, every two collecting pipes 5 located at the middle portion are communicated with each other, the number of rows of flow passing grooves 82 arranged on the sealing plate 8 is half of the number of rows of second flat pipe grooves 72 on the bottom plate 7, each row of flow passing grooves 82 corresponds to the positions of two rows of second flat pipe grooves 72 on the bottom plate 7, that is, the height is the same, and the horizontal length of the flow passing grooves 82 is at least equal to the horizontal length between two ends of the two rows of second flat pipe grooves 72; the collecting pipe 5 connected with the inlet pipe 2 and the corresponding flat pipe 9 form an input channel, the collecting pipe 5 connected with the outlet pipe 3 and the corresponding flat pipe 9 form an output channel, other collecting pipes 5 and the corresponding flat pipes 9 form an intermediate channel, the input channel and the intermediate channel, the output channel and the intermediate channel are respectively communicated through the overflow groove 82, and the intermediate channels are communicated through the collecting pipe 5 and the overflow groove 82 according to a U-shaped channel. The indoor condenser is used as a heat exchanger, and when the indoor condenser works, the refrigerant with high temperature and high pressure inside exchanges heat with low-temperature air flowing through the core body from the outside. The refrigerant flows into the input channel from the inlet pipe 2, flows into the intermediate channel through the flow groove 82 after flowing out of the input channel, flows into the output channel through the flow groove 82 after flowing out of the intermediate channel, and flows out of the outlet pipe 3 after flowing out of the output channel, so that the circulation of the refrigerant is realized; the refrigerant passes through on flat 9 inner walls of pipe transmit outer wall and heat dissipation area 10, and the air comes out the heat exchange with flat 9 outer walls of pipe and the circulation contact of heat dissipation area 10, realizes the purpose of air heating.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. An indoor condenser is characterized by comprising an inlet pipe (2), an outlet pipe (3), a left communicating component (4), a bottom plate (7), a sealing plate (8), a flat pipe (9) and a heat dissipation belt (10); wherein:

the flat pipes (9) which are horizontally placed are arranged into even and even rows along the vertical direction, the number of the flat pipes (9) in each row is the same, and the upper side and the lower side of each flat pipe (9) are provided with heat dissipation belts (10);

the left communicating component (4) is connected with the inlet pipe (2) and the outlet pipe (3), the left communicating component (4) comprises collecting pipes (5) which are arranged in the same row with the flat pipes (9), each collecting pipe (5) is vertically arranged, an end cover (6) is arranged at a pipe opening, a row of first flat pipe grooves (51) are respectively arranged on each collecting pipe (5) along the vertical direction, and each row of first flat pipe grooves (51) are respectively matched and connected with one end of each row of flat pipes (9);

be equipped with second flat tube groove (72) along vertical direction on bottom plate (7), the number of lines of second flat tube groove (72) is the same with flat pipe (9) number of lines, every flat tube groove of second (72) of row is connected with the other end cooperation of every flat pipe (9) of row respectively, bottom plate (7) outside is equipped with shrouding (8), outside protrusion forms at least one row of overflow groove (82) along vertical direction on shrouding (8), the position of two at least flat tube groove of second (72) on every overflow groove (82) of row and bottom plate (7) corresponds.

2. An indoor condenser according to claim 1, characterized in that the collecting pipes (5) in the left communicating assembly (4) are not communicated with each other, at least one collecting pipe (5) is connected with the inlet pipe (2), the remaining collecting pipe (5) is connected with the outlet pipe (3), the closing plate (8) is provided with a row of overflow grooves (82), and the row of overflow grooves (82) corresponds to the positions of all the rows of second flat pipe grooves (72) on the bottom plate (7); the collecting pipe (5) connected with the inlet pipe (2) and the corresponding flat pipe (9) form an input channel, the collecting pipe (5) connected with the outlet pipe (3) and the corresponding flat pipe (9) form an output channel, and the input channel and the output channel are communicated through the overflow groove (82).

3. An indoor condenser as claimed in claim 1, wherein two collecting pipes (5) positioned at the edge in the left communicating assembly (4) are respectively connected with the inlet pipe (2) and the outlet pipe (3), every two collecting pipes (5) positioned at the middle part are communicated with each other, the number of rows of overflowing grooves (82) arranged on the sealing plate (8) is half of the number of rows of second flat pipe grooves (72) on the bottom plate (7), and each row of overflowing grooves (82) corresponds to the positions of the two rows of second flat pipe grooves (72) on the bottom plate (7); the collecting pipe (5) connected with the inlet pipe (2) and the corresponding flat pipe (9) form an input channel, the collecting pipe (5) connected with the outlet pipe (3) and the corresponding flat pipe (9) form an output channel, other collecting pipes (5) and the corresponding flat pipe (9) form an intermediate channel, the input channel and the intermediate channel, the output channel and the intermediate channel are respectively communicated through the overflow groove (82), and the intermediate channels are communicated through the collecting pipe (5) and the overflow groove (82) according to the U-shaped channel.

4. An indoor condenser as claimed in claim 1, wherein the riveting member (71) is provided on the outer peripheral side of the bottom plate (7), the riveting groove (81) is provided on the periphery of the sealing plate (8), and the bottom plate (7) and the sealing plate (8) are connected by a one-to-one fit between the riveting member (71) and the riveting groove (81).

5. An indoor condenser according to claim 1, characterized in that the second flat tube groove (72) of the bottom plate (7) is provided with a turned-up edge (73) which is outward in the horizontal direction, and the horizontal height of the turned-up edge (73) is in the range of 1-3.5 mm.

6. An indoor condenser according to claim 1, wherein the upper side of the uppermost heat-dissipating strip (10) and the lower side of the lowermost heat-dissipating strip (10) are further provided with a shield (11).

7. A condenser as claimed in claim 1, wherein the other end of the inlet tube (2) and the other end of the outlet tube (3) are connected to the pressure plate (1), respectively.

8. An indoor condenser according to any one of claims 1-7, wherein all connections of the indoor condenser are soldered using Noclock aluminum solder.

9. A condenser as claimed in claim 1, characterised in that the heat-dissipating strip (10) is provided with fenestrations.

10. An indoor condenser according to claim 1, wherein each first flat tube groove (51) on the collecting main (5) and each second flat tube groove (72) on the bottom plate (7) have the same size, the horizontal length is 8-25mm, the vertical height is 1-3mm, and the horizontal length of each overflow groove (82) on the closing plate (8) is 20-55 mm.