Condenser easy and convenient to install, manufacturing method and production line

Abstract

The invention relates to a condenser easy and convenient to install, a manufacturing method and a production line. The condenser comprises a core body, a first liquid collecting pipe, a second liquid collecting pipe and a plurality of support assemblies. The core body comprises two edge pressing pieces, a plurality of flat pipes and a plurality of fins, the flat pipes and the fins are located between the two edge pressing pieces, the flat pipes are arranged at intervals one by one, and one fin is arranged between every two adjacent flat pipes; the two ends of the plurality of flat pipes are respectively connected with the first liquid collecting pipe and the second liquid collecting pipe; the plurality of support assemblies are connected with the core body, each support assembly comprises a sleeving screw rod, the sleeving screw rods are used for being connected with mounting holes in an automobile in a sleeving mode, and the sleeving screw rods are provided with a plurality of screw rods in different axial directions so as to be matched with the mounting holes in the different axial directions. The mounting structure has the effects of simplicity, convenience and quickness in mounting and convenience in maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile air conditioners, and in particular to a simple-to-install condenser, a preparation method and a production line. BACKGROUND

[0002] The automobile accessories commonly used in air conditioning systems of new energy vehicles and fuel vehicles include compressors, condensers and evaporators, which cooperate together to form an air conditioning system to adjust the temperature inside the vehicle. After the vehicle is used for a period of time, cotton flock, lint and other impurities are easily attached to the cooler, blocking the fins of the condenser and affecting the heat dissipation effect of the condenser. Therefore, it is usually necessary to disassemble the condenser for flushing to remove the attached impurities. The existing condensers are generally installed in the vehicle by using fixed supports. After disassembly and flushing, the condenser needs to be placed in the vehicle first when reinstalled, and then the position of the condenser is adjusted in the limited space to make the hole positions of the fixed supports correspond to the mounting holes in the vehicle, and then the bolts are placed and tightened by using a screwdriver and a wrench and the like. The operation process is very inconvenient in the narrow space of the vehicle, which slows down the installation progress. SUMMARY

[0003] Therefore, the present application provides a simple-to-install condenser, a preparation method and a production line, which can be simply installed in a vehicle and improve the installation efficiency.

[0004] In a first aspect, the present application provides a simple-to-install condenser, which adopts the following technical solution: A simple-to-install condenser includes a core body, a first liquid collecting pipe, a second liquid collecting pipe and a plurality of support assemblies. The core body includes two pressing members, a plurality of flat tubes and a plurality of fins. The plurality of flat tubes and the plurality of fins are located between the two pressing members. The plurality of flat tubes are arranged one by one at intervals, and one fin is arranged between adjacent two flat tubes. The two ends of the plurality of flat tubes are connected to the first liquid collecting pipe and the second liquid collecting pipe, respectively. The plurality of support assemblies are connected to the core body. The support assembly includes a sleeving screw rod, which is used to be connected to the mounting hole in the vehicle in a sleeving manner. The sleeving screw rod has a plurality of screw rods with different axial directions to adapt to mounting holes with different axial directions.

[0005] By adopting the above technical solution, the sleeving screw rod is connected to the mounting hole in the vehicle in a sleeving manner, simple installation is achieved, and the sleeving screw rod has a plurality of screw rods with different axial directions to adapt to mounting holes with different axial directions, without the need for individual customization according to mounting holes with different axial directions, thereby realizing batch production.

[0006] Preferably, the bracket assembly includes a connecting piece, which is detachably connected to the core body, and the sleeve screw includes a first screw and a second screw, the first screw is connected to the connecting piece, the second screw is perpendicular to the first screw, and the first screw or the second screw is connected to an axially parallel mounting hole.

[0007] Preferably, the sleeve-type screw further includes a sleeve, the sleeve is threadedly connected to the first screw, the second screw is connected to the sleeve, and the sleeve is used to adjust the angle of the second screw to adapt to mounting holes of different angles.

[0008] By adopting the above technical solution, the sleeve connection of the sleeve screw rod with the mounting holes in different directions and at different angles is achieved, thereby improving simplicity.

[0009] Preferably, the bracket assembly further includes an adjusting portion, which is used to adjust the position of the bracket assembly relative to the core body according to the position of the mounting hole in the car, so that the sleeve screw corresponds to the position of the mounting hole.

[0010] Preferably, the edge clamp includes a strip groove, the notch of which is away from the core body; the adjustment part includes a third screw and a movable block, the third screw is rotatably connected to the movable block, when the movable block is rotated to the first position, it can enter the strip groove through the notch, when the movable block is rotated to the second position, the bracket assembly can be connected and fixed to the edge clamp by the nut and the third screw.

[0011] By adopting the above technical solution, the position of the bracket assembly can be adjusted to correspond to the mounting holes at different positions.

[0012] Preferably, it further includes a hydraulic inlet plate and a hydraulic outlet plate, the hydraulic inlet plate is connected to the first liquid collecting pipe, and the hydraulic outlet plate is connected to the second liquid collecting pipe; the hydraulic inlet plate includes a liquid inlet and a liquid inlet channel, the liquid inlet is connected to the refrigerant medium delivery pipeline, and the liquid inlet channel is communicated with the liquid inlet and the first liquid collecting pipe respectively; the hydraulic outlet plate includes a liquid outlet and a liquid outlet channel, the liquid outlet is connected to the refrigerant medium delivery pipeline, and the liquid outlet channel is communicated with the liquid outlet and the second liquid collecting pipe respectively.

[0013] In a second aspect, the present application provides a method for preparing a condenser, which is used to prepare the simple installation condenser described in any one of the above items, and the steps include: The parts of the condenser are made, including but not limited to the edge pressing part, flat tube, fin, first collecting pipe, second collecting pipe, liquid inlet pressing plate and liquid outlet pressing plate; the edge pressing part, flat tube and fin are spliced into a core body and connected with the first collecting pipe and the second collecting pipe to form a condenser main body; the condenser main body is bound and fixed; other parts of the condenser main body, including but not limited to the liquid inlet pressing plate, liquid outlet pressing plate and partition plate, are welded; the condenser is brazed; the brazed condenser is subjected to air tightness detection; and the condenser with qualified air tightness is installed with a corresponding support.

[0014] By adopting the technical scheme, the preparation of the condenser is completed.

[0015] Preferably, the step of brazing the condenser comprises: hanging the condenser to a brazing agent spraying device; starting a conveying pump to spray the brazing agent on the condenser; after reaching a set spraying time, closing the conveying pump, starting a driving motor to convey the condenser to a welding furnace for brazing; after reaching a set welding time, closing the welding furnace, starting the driving motor to convey the condenser to a cooling device; and starting a cooling fan to cool the condenser by a wind knife.

[0016] By adopting the technical scheme, the brazing of the condenser is completed.

[0017] In a third aspect, the application provides a production line of the condenser, which is used for producing the condenser with simple installation as described in any one of the preceding aspects, and comprises: a processing device for processing various parts of the condenser; an assembling device for splicing the core body and the collecting pipe to form the condenser main body; a binding device for binding the condenser main body; a welding device for welding other parts of the condenser main body; a brazing device for brazing the condenser; and an air tightness detection device for detecting the air tightness of the condenser.

[0018] Preferably, the brazing device comprises a brazing agent spraying device, a welding furnace and a cooling device; the brazing agent spraying device comprises a brazing agent tank, a conveying pump and a nozzle, the conveying pump is connected with the brazing agent tank and the nozzle respectively to convey the brazing agent in the brazing agent tank to the nozzle, and the nozzle is used for spraying the brazing agent on the condenser; the welding furnace is used for welding the condenser after the brazing agent is sprayed; and the cooling device comprises a cooling fan and a wind knife, the cooling fan is used for generating cooling gas and conveying the cooling gas to the wind knife, and the wind knife is used for blowing the condenser after welding to cool and heat dissipation.

[0019] By adopting the technical scheme, the condenser is quickly sprayed with the brazing agent and quickly cooled, and the brazing efficiency and the overall production efficiency of the condenser are improved.

[0020] The condenser provided by the application, the preparation method and the production line are connected with installation holes in different positions, are easy and quick to install, and are beneficial to the disassembly and maintenance of the condenser. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a front view of a condenser provided by an embodiment of the application.

[0022] Figure 2 is a top view of a condenser provided by an embodiment of the application.

[0023] Figure 3 is a front view of a support assembly provided by an embodiment of the application.

[0024] Figure 4 is a top view of a support assembly provided by an embodiment of the application.

[0025] Figure 5 is a schematic view of an adjusting part provided by an embodiment of the application.

[0026] Figure 6 is a schematic view of an adjusting part provided by an embodiment of the application in a first position.

[0027] Figure 7 is a schematic view of an adjusting part provided by an embodiment of the application in a second position.

[0028] Figure 8 is a schematic view of a liquid inlet pressing plate provided by an embodiment of the application.

[0029] Figure 9 is a sectional view of a liquid inlet pressing plate provided by an embodiment of the application.

[0030] Figure 10 is a flowchart of a preparation method of a condenser provided by an embodiment of the application.

[0031] Figure 11 and Figure 12 is a partial schematic view of an assembling device provided by an embodiment of the application.

[0032] Figure 13 is a schematic view of a flux spraying device provided by an embodiment of the application.

[0033] Figure 14 is a schematic view of a brazing device provided by an embodiment of the application.

[0034] Explanation of reference signs: 100, condenser; 110, core body; 111, flat tube; 112, fin; 113, pressing part; 1131, first edge plate; 1132, second edge plate; 1133, positioning block; 1134, flange; 1135, strip-shaped groove; 121, first collecting pipe; 122, second collecting pipe; 123, partition plate; 130, support assembly; 131, connecting piece; 1311, flat plate; 1312, first side plate; 1313, second side plate; 1314, first connecting hole; 1315, observation window; 1316, second connecting hole; 132, sleeve screw; 1321, first screw; 1322, sleeve; 1323, second screw; 133, adjusting part; 1331, third screw; 1332, movable block; 1333, fixed shaft; 141, liquid inlet pressing plate; 1411, first pressing plate; 1412, second pressing plate; 1413, liquid inlet; 1414, liquid inlet channel; 142, liquid outlet pressing plate; 210, flat tube moving tool; 211, support plate; 212, sliding strip; 213, sliding groove; 214, rack; 220, flat tube arrangement tool; 221, mounting groove; 222, mounting piece; 223, sliding rail; 240, first extrusion mechanism; 241, extrusion platform; 242, first extrusion plate; 243, positioning plate; 250, flat tube positioning mechanism; 251, positioning groove; 300, brazing equipment; 310, flux spraying device; 311, flux tank; 312, spraying frame; 313, delivery pump; 314, nozzle; 315, driving sprocket; 316, driving motor; 317, chain; 320, welding furnace; 330, cooling device; 331, air cooling frame; 332, air cooler; 333, air knife. DETAILED DESCRIPTION

[0035] For the purpose of more clearly understanding the present application, technical solutions and advantages, the present application is described and explained below in connection with the drawings and embodiments. However, it should be understood by those skilled in the art that the present application can be implemented without these details. In some cases, in order to avoid unnecessary description, the aspects of the present application become obscure. The well-known methods, processes, systems, components and / or circuits that have been described at a higher level will not be described in detail. It is obvious for those skilled in the art that various changes can be made to the disclosed embodiments of the present application, and the general principles defined in the present application can be applied to other embodiments and application scenarios without deviating from the principles and scope of the present application. Therefore, the present application is not limited to the shown embodiments, but conforms to the broadest range claimed in the present application.

[0036] It should be noted that the description of the embodiments is merely intended for the purpose of helping understand the present application, but not intended to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0037] In the description of the present application, the meaning of one or more is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described as first, second, it is only used to distinguish technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0038] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a combined manner.

[0039] The embodiments of the present application disclose a condenser which is simple and convenient to install.

[0040] Please refer to Figure 1 and Figure 2The condenser 100 of the simple and convenient installation type comprises a core body 110, a first collecting pipe 121, a second collecting pipe 122 and a plurality of support assemblies. The first collecting pipe 121 and the second collecting pipe 122 are respectively arranged on the left side and the right side of the core body 110. The core body 110 comprises two upper and lower pressing members 113, a plurality of flat tubes 111 and a plurality of fins 112 are arranged between the two upper and lower pressing members 113, the plurality of flat tubes 111 are arranged in parallel and at intervals, one fin 112 is arranged between every two adjacent flat tubes 111, and the flat tubes 111 or the fins 112 at the top and the bottom are connected with the pressing members 113. The opposite sides of the first collecting pipe 121 and the second collecting pipe 122 are provided with a plurality of grooves arranged in layers, and the two ends of each flat tube 111 in the length direction are respectively inserted into the grooves of the first collecting pipe 121 and the second collecting pipe 122, so that the inside of each flat tube 111 is in communication with the inside of the first collecting pipe 121 and the second collecting pipe 122. The surface of the core body 110, the first collecting pipe 121 and the second collecting pipe 122 is sprayed with a brazing agent layer, so as to realize the brazing connection between the flat tubes 111, the fins 112 and the flat tubes 111 and the collecting pipes. The first collecting pipe 121 is connected with a liquid inlet pressing plate 141, the second collecting pipe is connected with a liquid outlet pressing plate 142, and the liquid inlet pressing plate 141 and the liquid outlet pressing plate 142 are used to be connected with the conveying pipeline of the external refrigerant medium. The inside of the first collecting pipe 121 and the second collecting pipe 122 is provided with a partition plate 123 for separating flow channels, and the two ends of the first collecting pipe 121 and the second collecting pipe 122 can be plugged with plugs.

[0041] The support assembly 130 is used to be connected with the mounting hole arranged in the automobile, so as to fix the condenser 100 in the automobile. The support assembly 130 comprises a sleeving screw rod 132, the sleeving screw rod 132 is used to be sleeved and connected with the mounting hole in the automobile, the sleeving screw rod 132 comprises a plurality of axial directions, which can be adapted to different axial mounting holes, so as to be connected with mounting holes in different directions. Due to the different internal spaces of different automobiles, the mounting holes are arranged in different directions. The different positions make the condenser 100 extremely inconvenient to install, and it is necessary to adjust or customize different mounting supports according to different positions and orientations. Therefore, the sleeving screw rod 132 with a plurality of axial directions is arranged, so that the sleeving screw rod 132 can be flexibly adapted to different mounting holes. The sleeving screw rod can be mass-produced, thereby reducing the cost.

[0042] The four support assemblies 130 are arranged at the left and right ends and the upper and lower ends of the core body 110, and the four support assemblies 130 are symmetrically arranged in pairs. During installation, the sleeving screw rods 132 of the two support assemblies 130 arranged at the top can be sleeved into the corresponding mounting holes, and then the sleeving screw rods 132 of the two support assemblies 130 arranged at the bottom can be sleeved into the corresponding mounting holes. The sleeving screw rods 132 are locked by nuts, so that the installation is completed, thereby realizing simple and convenient installation.

[0043] Please refer to Figure 2 The pressing member 113 comprises two parallel first side plates 1131 and a second side plate 1132 perpendicular to the first side plates 1131, the second side plate 1132 is connected with the uppermost or lowermost fin 112 or flat tube 111, one side of the two first side plates 1131 is connected with the second side plate 1132, and the other side extends away from the core 110. The support assembly 130 comprises a connecting member 131 and a sleeve screw 132, the connecting member 131 comprises a flat plate 1311 and two opposite first side plates 1312 perpendicular to the flat plate 1311, the connecting member 131 is buckled on the pressing member 113 through the two first side plates 1312, so that the two first side plates 1131 are located between the two first side plates 1312, the two first side plates 1312 are provided with first connecting holes 1314, and corresponding through holes are provided on the two first side plates 1131. The bolt passes through the first connecting holes 1314 and the through holes of the pressing member 113 to connect and fix the support assembly 130 and the pressing member 113. In order to observe whether the bolt is smoothly inserted into the first connecting holes 1314 and the through holes on the other side, an observation window 1315 is also provided on the flat plate 1311, and the observation window 1315 is located above the first connecting holes 1314, so as to observe the positions of the first connecting holes 1314 and the corresponding through holes, and the bolt is smoothly inserted. When the support assembly 130 is buckled and connected with the pressing member 113, the two first side plates 1131 of the pressing member 113 are easily deformed, therefore, in the embodiment of the application, a second side plate 1313 is arranged at one end of the flat plate 1311, the second side plate 1313 is perpendicular to the flat plate 1311 and the first side plate 1312, the second side plate 1313 is located on the same side of the flat plate 1311 as the first side plate 1312, and when the connecting member 131 is connected with the pressing member 113, the second side plate 1313 is located between the two first side plates 1131 to support them and avoid deformation of the two first side plates 1131. In the embodiment of the application, the second side plate 1313 is formed by bending one end of the flat plate 1311, so the strength of the flat plate 1311 is also improved.

[0044] In the embodiment of the application, after the connecting member 131 is connected with the pressing member 113, the bolt needs to be connected and fixed through the first connecting holes 1314 and the through holes, but the positions of the first connecting holes 1314 and the through holes cannot be completely matched when connected, and usually need to be moved and adjusted, which affects the overall installation efficiency. Therefore, in the embodiment of the application, according to the distance that should be matched by the first connecting holes 1314 and the through holes, a positioning block 1133 is arranged on the pressing member 113, the positioning block 1133 is located between the two first side plates 1131, and the connecting member 131 is buckled after being positioned by the second side plate 1313 contacting the positioning block 1133, so that the positions of the first connecting holes 1314 and the through holes are directly matched without adjustment, and the overall installation efficiency is improved.

[0045] Please refer to Figure 3 The sleeving screw 132 includes a first screw 1321, a sleeve 1322 and a second screw 1323. The first screw 1321 is connected with the flat plate 1311 and extends away from the core 110. The first screw 1321 is close to the collecting pipe. The sleeve 1322 is provided with an internal thread matched with the first screw 1321 and is detachably connected with the first screw 1321 through the internal thread. One end of the sleeve 1322 is connected with the second screw 1323. The second screw 1323 is in T shape with the sleeve 1322. After the sleeve 1322 is connected with the first screw 1321, the second screw 1323 is perpendicular to the first screw 1321.

[0046] In the embodiment, when the condenser 100 is installed, the first screw 1321 or the second screw 1323 can be selected to be sleeved with the mounting hole according to the direction of the mounting hole, and then be fixed by a nut. In the case that the axis of the mounting hole is parallel to the axis of the first screw 1321, the first screw 1321 is selected to be sleeved with the mounting hole. At this time, the sleeve 1322 and the second screw 1323 can be removed. In the case that the axis of the mounting hole is parallel to the second screw 1323, the sleeve 1322 is connected with the first screw 1321, and then the second screw 1323 is sleeved with the mounting hole and fixed by a nut. In addition, the depth of the connection between the sleeve 1322 and the first screw 1321 can be adjusted to enable the second screw 1323 to rotate by 360°, so that the second screw 1323 can be matched with mounting holes of different angles.

[0047] In other embodiments, the sleeving screw 132 only includes the first screw 1321 and the second screw 1323. The first screw 1321 and the second screw 1323 are fixedly connected and in cross shape. When installed, the screw parallel to the axis of the mounting hole is rotated to be sleeved with the mounting hole.

[0048] In other embodiments, the sleeving screw 132 can include three screws. The first screw is vertically arranged. The second screw is fixedly connected with the first screw in cross shape. The third screw is fixedly connected with the second screw in T shape.

[0049] Since the mounting holes connected with the condenser 100 are arranged in advance in the automobile, after the condenser body is connected with the support assembly 130, the whole is placed in the automobile and is sleeved with the mounting hole. However, when the mounting hole is arranged, there will be an operation error, so that the distance between the two mounting holes is also deviated, which affects the installation of the condenser 100. At this time, the position of the support assembly 130 needs to be adjusted again. The adjustment process includes disassembling the bolt, dismounting the support assembly 130, re-drilling or expanding the first connecting hole 1314, re-installing the support assembly 130 and re-tightening the bolt. The whole adjustment process is complicated and cannot realize simple installation. Therefore, the support assembly 130 provided in the embodiment further includes an adjusting part 133.Figures 5 to 7 As shown, the adjusting part 133 comprises a third screw 1331 and a movable block 1332, the third screw 1331 is rotatably connected with the movable block 1332, specifically, one end of the third screw 1331 is provided with a movable hole, one surface of the movable block 1332 is provided with a fixed shaft 1333, the fixed shaft 1333 is located in the movable hole, the diameter of the movable hole is greater than the diameter of the fixed shaft 1333, so that the movable block 1332 can be flipped relative to the third screw 1331. The other side of the two first side plates 1131 of the edge member 113 is provided with a flange 1134 protruding to the center of the edge member 113, a strip-shaped groove 1135 is formed in the edge member 113, a slot is formed between the two flanges 1134, and the distance between the two flanges 1134 is greater than the sum of the thickness of the movable block 1332 and the screw. When the support assembly 130 is connected with the core 110, the movable block 1332 is flipped to the first position, and in the first position, the movable block 1332 is parallel to the third screw 1331, the movable block 1332 is put into the strip-shaped groove 1135 through the slot, and then the movable block 1332 is flipped to the second position by itself, and in the second position, the movable block 1332 is perpendicular to the third screw 1331, a second connecting hole 1316 is formed in the flat plate 1311, the connecting piece 131 is buckled on the edge member 113 after passing through the third screw 1331 through the second connecting hole 1316, and then the connecting piece 131 is connected with the third screw 1331 through a nut, so that the movable block 1332 and the flat plate 1311 tightly press the two flanges 1134 to realize the fixation of the support assembly 130, and the first connecting hole 1314 and the through hole are not needed. When the condenser 100 is installed with the automobile, if the first screw 1321 or the second screw 1323 does not correspond to the position of the mounting hole, first loosen the nut on the third screw 1331, increase the distance between the movable block 1332 and the flat plate 1311, so that the support assembly 130 can move along the strip-shaped groove 1135, move to the position where the first screw 1321 or the second screw 1323 corresponds to the mounting hole, then sleeve the first screw 1321 or the second screw 1323 with the mounting hole, tighten the nut on the third screw 1331 after the sleeving is completed, so that the position of the support assembly 130 is fixed, and then lock the nut with the first screw 1321 or the second screw 1323, so that the condenser 100 is fixed. Therefore, through the adjusting part 133, the distance between the two support assemblies 130 on the same side can be adjusted to adapt to different mounting hole positions.

[0050] In some other embodiments, the adjusting part can be a pre-buried nut in the strip-shaped groove, the pre-buried nut freely slides in the strip-shaped groove, and the bolt is connected with the pre-buried nut through the second connecting hole when connected.

[0051] The bracket assembly 130 is sleeved with the screw rod 132, which can be connected with mounting holes in different directions. The adjusting part 133 of the bracket assembly 130 can be connected with mounting holes in different positions. Thus, the condenser 100 can be conveniently and quickly installed on different vehicles, and the subsequent disassembly and maintenance of the condenser 100 are facilitated, and the installation efficiency is greatly improved.

[0052] Please refer to Figure 8 and Figure 9 is a schematic view of a liquid inlet pressure plate provided by the embodiment of the present application. The liquid inlet pressure plate 141 comprises a first pressure plate 1411 and a second pressure plate 1412, which are perpendicular. The first pressure plate 1411 and the second pressure plate 1412 are arranged on the circumferential surface of the first liquid collecting pipe 121. The second pressure plate 1412 comprises an arc-shaped part, which is attached to and welded with the circumferential surface of the first liquid collecting pipe 121. The first pressure plate 1411 is provided with a liquid inlet 1413, which is used to be connected with an external refrigerant medium conveying pipeline. The second pressure plate 1412 is provided with a liquid inlet channel 1414, which is respectively communicated with the liquid inlet 1413 and the inside of the first liquid collecting pipe 121. The liquid inlet pressure plate 141 is integrally formed. The liquid outlet pressure plate 142 has the same structure and size as the liquid inlet pressure plate 141. The liquid outlet of the liquid outlet pressure plate 142 is communicated with the inside of the second liquid collecting pipe 122 through a liquid outlet channel.

[0053] On the other hand, please refer to Figure 10 is a preparation method of a condenser provided by the embodiment of the present application, which comprises the following steps: S101: manufacturing parts of the condenser, including but not limited to edge parts, flat tubes, fins, first liquid collecting pipes, second liquid collecting pipes, liquid inlet pressure plates and liquid outlet pressure plates.

[0054] The parts of the condenser include but are not limited to the flat tubes 111, the fins 112, the first liquid collecting pipes 121, the second liquid collecting pipes 122, the liquid inlet pressure plates 141, the liquid outlet pressure plates 142, the partition plates 123, the plugs and the bracket assemblies 130. In the embodiment, the parts can be made of aluminum material. The flat tubes 111 can be cut and bent from aluminum plates to form hollow square tubes, or can be deformed aluminum tube profiles purchased according to the required size. The fins 112 can be processed into wave shapes from aluminum sheets. The liquid collecting pipes can be cut according to the required size, and a slot is punched on one side along the length direction, and a partition plate slot is cut on the other side to weld the partition plate 123.

[0055] S102: assembling the edge parts, the flat tubes and the fins into a core, and connecting the core with the first liquid collecting pipes and the second liquid collecting pipes respectively to form a condenser main body.

[0056] The core 110 of the condenser comprises flat tubes 111, fins 112 and pressing members 113. When assembling, a plurality of flat tubes 111 are arranged horizontally and spaced apart by using an arrangement tool. Then, the fins 112 are placed in the gaps between the two flat tubes 111, and the pressing members 113 are placed at both ends of the flat tube 111 arrangement direction. The two ends of the flat tube 111 arrangement direction are extruded so that the pressing members 113, the flat tubes 111 and the fins 112 are tightly closed and the gaps are eliminated. Then, the top surfaces of the flat tubes 111 and the fins 112 are pressed down so that the top surfaces are flush.

[0057] The assembled core 110 is extruded and kept stationary. The first and second collecting tubes 121 and 122 are inserted into the left and right sides of the core 110, so that the two ends of each flat tube 111 are inserted into the notches of the collecting tubes, and the main body of the condenser is completed. The distance between the notches of the collecting tubes is the same as the distance set by the arrangement tool, so it corresponds to the arrangement position of the flat tubes 111.

[0058] S103: The condenser main body is fixed by binding.

[0059] The condenser main body is clamped by a clamp and moved to a binding device. The binding device uses iron wire to bind from both ends of the flat tube 111 arrangement direction, so that the pressing members 113 are tightly fixed between the flat tubes 111 and the fins 112, to control the gap between the fins 112 and the flat tubes 111 to be no more than the set requirement.

[0060] S104: Other accessories of the condenser main body are welded, including but not limited to the liquid inlet pressure plate, the liquid outlet pressure plate and the partition plate.

[0061] The liquid inlet pressure plate 141, the liquid outlet pressure plate 142, the partition plate 123 and the plug are welded with the first and / or second collecting tubes 121 and 122, and the assembly of the condenser is completed.

[0062] S105: The condenser is brazed.

[0063] Before brazing, the assembled condenser can be pretreated, which includes removing grease, stains, oxides and other substances on the condenser. Then, flux is coated on the surface of the condenser, and then it is sent into a welding furnace for high-temperature welding. Specifically, before pretreatment, the condenser can be subjected to flattening treatment and trimming treatment. The flattening treatment can include flattening each surface of the condenser to make the surfaces flat. The trimming treatment includes removing burrs and protrusions on the surface of the condenser. After the flattening treatment and the trimming treatment, the flux can be uniformly and comprehensively coated.

[0064] Specifically, the step of brazing the condenser comprises: S1051: The condenser is hung on a flux spraying device; S1052: A conveying pump is started to spray flux on the condenser; S1053: After reaching the set spraying time, the conveying pump is turned off, the driving motor is started, and the condenser is conveyed to the soldering furnace for soldering; S1054: After reaching the set soldering time, the soldering furnace is turned off, the driving motor is started, and the condenser is conveyed to the cooling device; S1055: The air cooler is turned on, and the condenser is cooled by the air knife.

[0065] The soldering in the soldering furnace can be divided into two stages. In the first stage, the temperature of the soldering furnace is 200-400°C, and water in the flux is removed. In the second stage, the temperature of the soldering furnace is above 550°C, and the flux is melted, so that the flat tube 111, the fin 112 and the flat tube 111, the pressing part 113 and the flat tube 111 or the fin 112 are all soldered together.

[0066] S106: The condenser after soldering is detected for air tightness.

[0067] Before detection, the welding slag or oil stains on the surface of the condenser can be removed to avoid affecting the detection effect. The steps of air tightness detection specifically include: S1061: Nitrogen is injected into the condenser, and after the first pressure maintaining time, the leakage of the first area is detected.

[0068] The liquid outlet and other outlets are blocked, nitrogen is first injected into the condenser through the liquid inlet, the liquid inlet is blocked, the first pressure maintaining time is maintained, and it is judged whether there is a large area of leakage. If there is a large area of leakage, the condenser is first repaired, and then the next step of detection is entered, so as to avoid directly using helium detection, and a large area of leakage will cause waste of helium. The detection result can be judged by the fluctuation of the pressure gauge or the pressure difference detected by the pressure sensor, or it can be judged by manual. The injected nitrogen pressure can be 3.5 MPa, and the first time can be 2 s. A larger gas pressure can directly reflect a large area of leakage position in a short time.

[0069] S1062: Helium is injected into the condenser, and after the second pressure maintaining time, the leakage of the second area is detected by pressure difference.

[0070] The liquid outlet and other outlets are blocked, helium is injected into the condenser through the liquid inlet, the liquid inlet is blocked, and the condenser is placed in a helium leak detection vacuum box. The second pressure maintaining time is maintained, and it is judged whether there is a small area of leakage phenomenon by the fluctuation of the pressure gauge or the pressure difference detected by the pressure sensor. The injected helium pressure can be 0.8 MPa, and the second time can be 8 s. If the pressure difference exceeds the set range, for example, the pressure drop is greater than 5%, it is considered that there is a leakage, and the leakage needs to be repaired again. After the repair, helium is injected again for detection until the pressure drop is within the set range. Helium leak detection has high sensitivity and can accurately locate the leakage point, which is convenient for rapid repair.

[0071] In other embodiments, the condenser can be placed in a sink for soaking, if the condenser produces bubbles in the water, the position of the bubbles is the leakage position, which needs to be repaired, and then re-detecting after soaking, if no bubbles are produced, the water on the condenser is dried, and the next step is detected.

[0072] S1063: injecting nitrogen into the condenser, and at least standing for a third time, detecting the leakage by pressure difference.

[0073] When injecting nitrogen, the liquid inlet and outlet can be blocked by rubber plugs first, then a gas filling needle is inserted from the liquid inlet or outlet rubber plug and penetrates the rubber plug, and then the start switch is pressed to fill nitrogen. After the nitrogen filling is completed, the pillow is pulled out, and after standing for a third time, if the pressure drop is within the set range, the condenser is considered to be a qualified product, which is packaged and stored. If the pressure drop exceeds the set range, the condenser is considered to be unqualified and is scrapped. The nitrogen injection pressure can be 0.3-0.4Mpa, and the third time is not less than 12 hours. The nitrogen is used again to test the pressure of the condenser to ensure its sealing, structural strength and long-term stability.

[0074] In the embodiments of the present application, the second time is greater than the first time and less than the third time, and the second area is smaller than the first area. The shortest time is used to quickly find large area leakage, the second time is used to find small leakage, and the third time is used to detect long-term sealing and stability. Through the three sealing detection processes of the condenser, the sealing reliability of the condenser is ensured, and the quality of the product is guaranteed.

[0075] In other embodiments, a nitrogen mass spectrometer can be used to detect the leakage position.

[0076] S107: installing a support assembly on the condenser with air tightness.

[0077] Four support assemblies are installed on the condenser to complete the preparation work.

[0078] The embodiments of the present application also provide a preparation production line of a condenser, which includes processing equipment, assembly equipment, binding equipment, welding equipment, brazing equipment 300 and air tightness detection equipment. The processing equipment includes but is not limited to cutting machines, bending machines, punching machine tools and fin forming machines, etc. The cutting machine is used to cut aluminum or other metal materials according to the size requirements, such as cutting a circular aluminum pipe to obtain the base material of the liquid collecting pipe or a flat aluminum pipe to obtain the flat pipe 111. The bending machine is used to bend the plate to form the required shape, such as bending the aluminum plate to form the base material of the flat pipe 111, or bending the sheet metal to form the corresponding support. The punching machine tool punches the base material, such as punching the liquid collecting pipe to process the notch, and the fin forming machine is used to make the aluminum material into a wave-shaped or other shaped fin 112.

[0079] The assembling device comprises a flat tube moving tool 210 and a flat tube arranging tool 220 for assembling the core 110, and the flat tube moving tool 210 and the flat tube arranging tool 220 are slidably connected. The flat tube arranging tool 210 comprises two symmetrically arranged mounting pieces 222 and a sealing plate (not shown in the figure), and the sealing plate is connected with one end of the two mounting pieces, so that the two mounting pieces are connected and integrated. A plurality of mounting grooves 221 are arranged at intervals on each mounting piece 222, and each two symmetric mounting grooves 221 are used to place one flat tube 111, and the bottom of the mounting groove 221 is open. The mounting piece 222 is provided with an equal-length sliding rail 223 along the length direction, and the sliding rail 223 is located below the mounting groove 221 and does not protrude from the mounting groove 221. The flat tube moving tool comprises a support plate 210, and the support plate 210 is provided with two equal-length sliding strips 212 along the length direction, and the sliding strips 212 are provided with sliding grooves 213, and the two sliding grooves 213 are symmetrically arranged at the bottom of the support plate 210. The size of the sliding groove 213 is matched with the size of the sliding rail 223, and the flat tube moving tool 210 and the flat tube arranging tool 220 are slidably connected through the sliding groove 213 and the sliding rail 223. After connection, the support plate 210 is located at the bottom of the mounting groove 221 and closes the bottom of the mounting groove 221, so as to support the flat tube 111 in the mounting groove 221 and prevent it from falling from the bottom of the mounting groove 221. When the support plate 210 slides away, the bottom of the mounting groove 221 is opened, and the flat tube 111 in the mounting groove 221 will fall from the bottom. In the arranging state, the support plate 210 slides to contact the sealing plate and is limited by the sealing plate, at this time, the bottoms of all the mounting grooves 221 are closed, and after the flat tube 111 is processed and manufactured, the staff can directly arrange it in the mounting groove 221 one by one. After arrangement, the flat tube moving tool 210 and the flat tube arranging tool 220 are moved as a whole to the flat tube positioning mechanism 250, and then the support plate 210 is moved to open the bottom of each mounting groove 221 one by one, and the flat tube 111 falls from the bottom one by one to the flat tube positioning mechanism 250 for the next assembling tool. Specifically, the two sides of the support plate 210 along the length direction are provided with a rack 214, and the two mounting pieces 222 are connected with a rotating motor (not shown in the figure), the output shaft of the motor is connected with a gear (not shown in the figure), and the gear is engaged with the rack 214. The two rotating motors are synchronously started through electric control, the rack 214 is driven to move through the gear, and the sliding of the support plate 210 is realized.

[0080] The assembling device further comprises a flat tube positioning mechanism 250, a collecting tube pair inserting mechanism (not shown in the figure), a first extruding mechanism 240 and a second extruding mechanism (not shown in the figure). The first extruding mechanism 240 comprises an extruding platform 241, a positioning plate 243 and a first extruding plate 242, and the positioning plate 243 and the first extruding plate 242 are respectively located at two ends of the extruding platform 241 in the length direction. The second extruding mechanism comprises a second extruding plate and is located above the extruding platform 241. The flat tube positioning mechanism 250 is movably arranged at two sides of the extruding platform 241 in the length direction and can be moved away from the extruding platform 241. The flat tube positioning mechanism 250 is provided with a plurality of positioning grooves 251 at intervals, and the size of the positioning grooves 251 is consistent with the size of the mounting grooves 221 on the flat tube arrangement tool 220. The number of the positioning grooves 251 can be greater than or equal to the number of the mounting grooves 221. The collecting tube pair inserting mechanism is movably arranged at two sides of the extruding platform 241 in the length direction. After the flat tube arrangement tool 220 is mounted with the flat tubes 111, the flat tube arrangement tool 220 and the flat tube moving tool 210 are placed on the flat tube positioning mechanism 250 as a whole, so that the mounting grooves 221 and the positioning grooves 251 correspond one by one. Then the supporting plate 210 is controlled to slide, so that the flat tubes 111 in the mounting grooves 221 fall on the extruding platform 241 one by one and fall into the corresponding positioning grooves 251 one by one. After all the flat tubes 111 fall into the positioning grooves 251, the flat tube arrangement tool 220 and the flat tube moving tool 210 are removed. Before the flat tubes 111 fall into the positioning grooves 251, the edge pressing members 113 can be placed on the opposite surfaces of the positioning plate 243 and the first extruding plate 242. After the flat tubes 111 fall into the positioning grooves 251, the fins 112 are placed between two adjacent flat tubes 111. Then the flat tube positioning mechanism 250 moves away from the two ends of the flat tubes 111 and away from the extruding platform 241. The first extruding plate 242 is driven by a driving mechanism to extrude the edge pressing members 113, the flat tubes 111 and the fins 112 towards the positioning plate 243, so that the edge pressing members 113, the flat tubes 111 and the fins 112 abut against each other, the gap is reduced, and the splicing tool of the condenser core 110 is completed. Then the second extruding mechanism extrudes from top to bottom, the second extruding plate makes the top surfaces of the flat tubes 111 and the fins 112 flat, and the core 110 is fixed. The collecting tube pair inserting mechanism moves to the two sides of the extruding platform 241 and slowly approaches the core 110 until the slots of the collecting tubes are inserted with the flat tubes 111. Then the collecting tube pair inserting mechanism is removed, the second extruding mechanism is removed, and the assembling work of the condenser main body is completed.

[0081] After the assembling of the condenser main body is completed, the condenser main body is moved to the binding device by a clamp for binding. The binding device comprises a binding platform, a bottom threading mechanism, a top threading mechanism and a twisting mechanism. The condenser main body is placed on the binding platform. The bottom threading mechanism threads the iron wire from below the condenser main body. The top threading mechanism receives the iron wire and threads the iron wire from above the condenser main body. The twisting mechanism receives the iron wire and twists and connects the iron wires from above and below together, and the binding work is completed.

[0082] The bundled and formed condenser body is transferred to a welding area, and the inlet and outlet hydraulic plates 141 and 142 and other required components are welded, so as to complete the assembly of the condenser. The welding equipment includes a welding agent and a polishing machine, etc. The welding machine is used to weld the inlet and outlet hydraulic plates, the partition plate 123 and other components outside the condenser body. The polishing machine can be used to remove burrs, bumps, oil stains, etc.

[0083] The assembled condenser 100 is transferred to the brazing equipment 300 for brazing. The brazing equipment 300 includes a brazing agent spraying device 310, a welding furnace 320, and a cooling device 330. The brazing agent spraying device 310 includes a brazing agent tank 311, a spraying frame 312, a conveying pump 313, and a nozzle 314. The brazing agent tank 311 stores the brazing agent. The conveying pump 313 is connected with the brazing agent tank 311 and communicates with the inside of the brazing agent tank 311 through a pipeline. The nozzle 314 is connected with the spraying frame 312 and connected with the conveying pump 313 through a pipeline. The spraying frame 312 is provided with a plurality of driving motors 316 and a plurality of driving sprockets 315. Each driving sprocket 315 is engaged with a chain 317. The condenser 100 is hung on the chain 317 through a hanging tool. A plurality of condensers 100 can be hung on the spraying frame 312, and the plurality of condensers 100 can be sprayed with the brazing agent at the same time, so as to improve the efficiency. In the present application, two driving motors and two driving sprockets are taken as an example, and four condensers are hung for spraying each time. When the condenser 100 needs to be brazed, the conveying pump 313 is started, and the nozzle 314 sprays the brazing agent on the condenser 100. When the set spraying time is reached, the conveying pump 313 is closed, and the spraying is stopped. The spraying time can be set according to the required coating thickness. The nozzle 314 can be an atomizing nozzle, so as to improve the uniformity of spraying.

[0084] The existing method for coating the brazing agent on the condenser is to place the condenser on a platform, and then manually coat the brazing agent on the surface of the condenser one by one by using a brush. After coating the surface, the condenser needs to be turned over to coat the other surface. The whole coating process is low in efficiency and has hidden dangers to the safety of the operator. In addition, the coating is not uniform due to the uneven surface of the condenser, and the surface that has been coated is scratched when the condenser is turned over, so that the brazing agent is easily scraped off. Therefore, the brazing agent spraying device 310 is used to automatically complete the spraying of the brazing agent, so as to improve the efficiency and protect the safety of the operator. The condenser 100 is hung in the form of a chain, so as to avoid the uneven spraying caused by the uneven surface. The two surfaces are sprayed at the same time, and the surface does not need to be turned over. The brazing agent sprayed from the nozzle 314 falls back into the brazing agent tank 311, so as to be reused and save the cost. In order to prevent the sprayed brazing agent from splashing everywhere and polluting the environment, a protective cover can be arranged outside the spraying frame 312.

[0085] The welding furnace 320 is provided with a low-temperature zone and a high-temperature zone. The temperature of the low-temperature zone is between 200-400 DEG C, and is used to remove the moisture of the flux on the condenser 100. The temperature of the high-temperature zone is above 550 DEG C, so that the flux is melted, and the welding is completed. The cooling device 330 comprises a wind cooling frame 331, a cold air machine 332 and a wind knife 333. The wind knife 333 is connected with the wind cooling frame 331, and is connected with the cold air machine 332 through a pipeline. The cold air machine 332 is used to generate cooling gas and deliver the cooling gas to the wind knife 333. The wind knife 333 is used to blow the cold air to the welded condenser 100, so as to radiate and cool. A plurality of driven sprockets (not shown in the figure) are also installed on the wind cooling frame 331. The plurality of driven sprockets correspond to the plurality of driving sprockets 315 one by one. The chain 317 passes through the inside of the welding furnace 320 and is connected with the driven sprockets. After the flux spraying process of the condenser 100 is completed, the driving motor 316 is started to drive the driving sprockets 315 to rotate. The chain 317 drives the condenser 100 to move to the direction of the welding furnace 320 and enter the welding furnace 320 to perform the welding process. After the set welding time is reached, the driving motor 316 is started again, so that the condenser 100 moves to the direction of the cooling device 330 to rapidly radiate and cool.

[0086] The chain in the embodiment of the present application is made of high-temperature-resistant stainless steel material or alloy material, so that it can normally rotate in the welding furnace. By adopting the form of motor-driven sprocket, the condenser can be transferred in each process of the brazing equipment. The structure is simple, the control is convenient, and the brazing efficiency is improved.

[0087] The air tightness detection equipment comprises a water tank or a helium leak detection system, and a nitrogen detection system. The water tank is used to soak the condenser. The helium leak detection system is used to generate helium and inject the helium into the condenser. The helium leak detection system comprises a helium leak detection vacuum box, which is used to place the condenser in the vacuum box to perform pressure maintaining detection, so as to avoid the leakage of helium into the environment. The helium leak detection system comprises a pressure gauge or a pressure sensor. The nitrogen detection system is used to inject nitrogen into the condenser to perform pressure maintaining detection. The nitrogen detection system comprises a large-leak detection hose, a quick connector and a gas filling needle. The quick connector is connected with a transition connector used for detecting the condenser to perform first large-area leak detection. The gas filling needle is used to pierce the rubber plug of the liquid inlet or liquid outlet to perform third detection. The nitrogen detection system further comprises indicator lights. Different colors of the indicator lights represent the qualified condition of the large-area leak detection of the condenser. The detection personnel can intuitively obtain the detection result. Only the condenser that passes the large-area leak detection can enter the next helium leak detection process, so as to avoid the leakage and waste of helium.

[0088] It should be understood that although each step in the flowchart of the drawing is shown in sequence according to the arrow, these steps are not necessarily executed in the order indicated by the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and they can be executed in other orders.

[0089] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A simple installation type condenser, characterized in that: include: a core, a first manifold, a second manifold, and a plurality of bracket assemblies; The core body includes two edge clamps, a plurality of flat tubes and a plurality of fins, wherein the plurality of flat tubes and the plurality of fins are located between the two edge clamps, the plurality of flat tubes are arranged one by one at intervals, and one fin is provided between two adjacent flat tubes; the two ends of the plurality of flat tubes are respectively connected to the first collecting pipe and the second collecting pipe; The multiple bracket assemblies are connected to the core body, and the bracket assembly includes a sleeve screw rod, which is used to be sleeved and connected with the mounting hole in the car. The sleeve screw rod has multiple screw rods with different axial directions to adapt to mounting holes with different axial directions.

2. The easy-to-install condenser according to claim 1, characterized in that: The bracket assembly includes a connecting piece, which is detachably connected to the core body. The sleeve screw includes a first screw and a second screw. The first screw is connected to the connecting piece, the second screw is perpendicular to the first screw, and the first screw or the second screw is connected to an axially parallel mounting hole.

3. The easy-to-install condenser according to claim 2, characterized in that: The sleeve screw further includes a sleeve, which is threadedly connected to the first screw, and the second screw is connected to the sleeve. The sleeve is used to adjust the angle of the second screw to adapt to mounting holes of different angles.

4. The easy-to-install condenser according to claim 1, characterized in that: The bracket assembly further includes an adjusting portion, which is used to adjust the position of the bracket assembly relative to the core body according to the position of the mounting hole in the car, so that the sleeve screw corresponds to the position of the mounting hole.

5. The easy-to-install condenser according to claim 4, characterized in that: The edge clamping piece includes a strip groove, the notch of which is away from the core body; the adjusting part includes a third screw and a movable block, the third screw is rotatably connected to the movable block, and when the movable block is rotated to the first position, it can enter the strip groove through the notch; when the movable block is rotated to the second position, the bracket assembly can be connected and fixed to the edge clamping piece by the nut and the third screw.

6. The easy-to-install condenser according to claim 1, characterized in that: It also includes a hydraulic inlet plate and a hydraulic outlet plate, the hydraulic inlet plate is connected to the first liquid collecting pipe, and the hydraulic outlet plate is connected to the second liquid collecting pipe; the hydraulic inlet plate includes a liquid inlet and a liquid inlet channel, the liquid inlet is connected to the refrigerant medium conveying pipeline, and the liquid inlet channel is communicated with the liquid inlet and the first liquid collecting pipe respectively; the hydraulic outlet plate includes a liquid outlet and a liquid outlet channel, the liquid outlet is connected to the refrigerant medium conveying pipeline, and the liquid outlet channel is communicated with the liquid outlet and the second liquid collecting pipe respectively.

7. A method for preparing a condenser, for preparing the easily installed condenser according to any one of claims 1 to 6, comprising: Manufacturing spare parts for condensers, including but not limited to edge clamps, flat tubes, fins, first manifold, second manifold, hydraulic inlet plate and hydraulic outlet plate; Assembling the edge clamps, flat tubes and fins into a core body, and connecting them to the first and second liquid collecting pipes respectively to form a condenser body; Binding and fixing the condenser body; Welding other parts other than the condenser body, including but not limited to the hydraulic inlet plate, hydraulic outlet plate and partition plate; Brazing of the condenser; Conduct air tightness test on the condenser after brazing; Install multiple bracket assemblies on condensers that meet airtightness requirements.

8. The method for preparing a condenser according to claim 7, characterized in that: The step of brazing the condenser comprises: Hook the condenser to the flux spraying device; Start the delivery pump to spray brazing flux on the condenser; After the set spraying time is reached, the delivery pump is turned off, the drive motor is started, and the condenser is transported to the welding furnace for brazing; When the set welding time is reached, the welding furnace is closed, the drive motor is started, and the condenser is transported to the cooling device; Turn on the air cooler and use the air knife to dissipate heat and cool the condenser.

9. A condenser production line for producing the easily installed condenser according to any one of claims 1 to 6, comprising: Processing equipment used to process and manufacture various spare parts for condensers; Assembly equipment for assembling the condenser core and header to form the condenser body; a bundling device for bundling the condenser body; Welding equipment, used for welding other parts other than the condenser body; Brazing equipment for brazing condensers; Air tightness testing equipment is used to test the sealing of condensers.

10. The condenser production line according to claim 9, characterized in that: The brazing equipment includes a brazing flux spraying device, a welding furnace and a cooling device; the brazing flux spraying device includes a brazing flux tank, a delivery pump and a nozzle, the delivery pump is respectively connected to the brazing flux tank and the nozzle to deliver the brazing flux in the brazing flux tank to the nozzle, and the nozzle is used to spray the brazing flux on the condenser; the welding furnace is used to weld the condenser after the brazing flux is sprayed; the cooling device includes an air cooler and an air knife, the air cooler is used to generate cooling gas and deliver it to the air knife, and the air knife is used to blow cold air to the condenser after welding to dissipate heat and cool it down.

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