A parallel flow condenser

Abstract

The present invention discloses a parallel flow condenser, which is characterized by comprising a first header assembly and a second header assembly arranged in parallel, a flat tube having two ends respectively connected to the first header assembly and the second header assembly between the first header assembly and the second header assembly; a liquid storage drier is connected to one side of the first header assembly, and a detachable connection block is provided on the liquid storage drier; an air inlet pipe and a liquid outlet pipe are connected to the second header assembly. The parallel flow condenser of the present invention has good applicability, low cost, is easy to install, arrange and maintain, realizes condensation and evaporation of refrigerant in the condenser, and has good application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioning, and more specifically, relates to a parallel flow condenser for a heat pump system of an electric vehicle. Background Art

[0002] Fuel vehicles need to create a comfortable driving environment, that is, they need to be equipped with corresponding air conditioning systems to improve their comfort and competitiveness. During the development and research, the matching air conditioners also need to be developed. Existing fuel vehicles usually use PTC electric heaters or fuel heaters for heating, but these heating devices are usually expensive, heavy and inefficient, which is not conducive to widespread promotion. In addition, existing parallel flow condensers are mostly fixedly connected, with high maintenance costs. Summary of the invention

[0003] The purpose of the present invention is to solve the problems existing in the prior art and to provide a parallel flow condenser which has good applicability, low cost and is easy to install, arrange and maintain.

[0004] In order to achieve the above-mentioned purpose, the parallel flow condenser of the present invention is characterized in that it includes a first collecting tube assembly and a second collecting tube assembly arranged in parallel, a flat tube with two ends respectively connected to the first collecting tube assembly and the second collecting tube assembly is provided between the first collecting tube assembly and the second collecting tube assembly; a liquid receiver-dryer is connected to one side of the first collecting tube assembly, and a detachable connecting block is provided on the liquid receiver-dryer; and an air inlet pipe and a liquid outlet pipe are connected to the second collecting tube assembly.

[0005] In order to make the above technical solution more detailed and specific, the present invention also provides the following further preferred technical solutions to obtain satisfactory practical effects:

[0006] The air inlet pipe and the liquid outlet pipe are supported and connected to the second manifold assembly through inlet and outlet brackets.

[0007] The connecting section of the inlet and outlet bracket is provided with an arc-shaped groove on the wall surface of the tube body that matches and connects to the second collecting tube, and is connected to the wall surface of the tube body by welding.

[0008] The extended ends of the inlet and outlet brackets are provided with connecting holes for respectively passing through the air inlet pipe and the liquid outlet pipe. One end of the air inlet pipe and the liquid outlet pipe is connected to the second manifold assembly, and the other end passes through the connecting holes on the inlet and outlet brackets to be connected to the external inlet and outlet pipes.

[0009] The liquid receiver-drier comprises a cylinder, a connecting hole is provided on the cylinder, a connecting seat is provided on the connecting hole, and the connecting block is detachably connected to the connecting seat.

[0010] The connecting seat is provided with an arc-shaped fitting surface matching the surface of the cylinder body and is connected to the cylinder body by welding.

[0011] A spiral groove is provided at the inner bottom of the connecting seat, and a clamping block is provided at the upper bottom of the connecting block to be protruded and clamped into the spiral groove.

[0012] The clamping block is an elastic clamping block connected to the connecting block. The connecting block is provided with two symmetrically distributed clamping blocks, and the spiral groove is provided with two clamping blocks respectively connected to the clamping blocks.

[0013] The connection block is provided with a sealing ring arranged between the connection block and the connection seat.

[0014] One end of the connection block is connected to the connection seat, and the other end is connected to the first header assembly by clamping. A sealing gasket is provided between the connection block and the first header assembly.

[0015] Compared with the prior art, the present invention has the following advantages: the parallel flow condenser of the present invention has good applicability, low cost, is easy to install, arrange and maintain, realizes condensation and evaporation of the refrigerant in the condenser, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following is a brief description of the contents and symbols in the drawings of this specification:

[0017] Figure 1 It is a schematic diagram of the structure of the parallel flow condenser of the present invention.

[0018] Figure 2 This is a schematic diagram of the layout structure of the inlet and outlet components of the present invention.

[0019] Figure 3 It is a schematic diagram of the cylinder structure of the liquid storage dryer in the present invention.

[0020] Figure 4 It is a schematic diagram of the installation structure of the connecting block in the liquid storage dryer of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the connecting block and the connecting seat in the liquid storage dryer of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the clamping block on the connecting block in the liquid storage dryer of the present invention.

[0023] Markings in the accompanying drawings: 1. first collecting pipe assembly, 2. second collecting pipe assembly, 3. fin, 4. flat tube, 5. upper plate, 6. air inlet pipe, 7. liquid storage dryer, 71. cylinder, 72. connecting hole, 73. connecting seat, 731. spiral groove, 732. limiting side wall, 74. connecting block, 741. clamping block, 75. sealing ring, 8. inlet and outlet brackets, 9. liquid outlet pipe, 10. lower plate, 11. mounting bracket. DETAILED DESCRIPTION

[0024] The specific implementation modes of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0025] The parallel flow condenser of the present invention is as follows: Figure 1 As shown in the figure, it includes a first collecting tube assembly 1 and a second collecting tube assembly 2 arranged in parallel, and a flat tube 4 is provided between the first collecting tube assembly 1 and the second collecting tube assembly 2, with two ends respectively connecting the first collecting tube assembly 1 and the second collecting tube assembly 2; one side of the first collecting tube assembly 1 is connected to a liquid receiver-dryer 7, and a detachable connecting block 74 is provided on the liquid receiver-dryer 7; the second collecting tube assembly 2 is connected to an air inlet pipe 6 and a liquid outlet pipe 9.

[0026] In the present invention, Figure 2 As shown in the figure, the air inlet pipe 6 and the liquid outlet pipe 9 are supported and connected to the second header assembly 2 by the inlet and outlet brackets 8. The connecting section of the inlet and outlet brackets 8 is provided with an arc-shaped groove that is matched and connected to the wall of the tube body of the second header, and is connected to the wall of the tube body by welding. The extended ends of the inlet and outlet brackets 8 are provided with connecting holes that pass through the air inlet pipe 6 and the liquid outlet pipe 9 respectively. One end of the air inlet pipe 6 and the liquid outlet pipe 9 is connected to the second header assembly 2, and the other end passes through the connecting holes on the inlet and outlet brackets 8 to connect to the external inlet and outlet pipes.

[0027] In the present invention, Figure 3 , 4 As shown in FIGS. 5 and 6, the liquid receiver-drier 7 comprises a cylinder 71, a connecting hole 72 is provided on the cylinder 71, a connecting seat 73 is provided on the connecting hole 72, and a connecting block 74 is detachably connected to the connecting seat 73. The connecting seat 73 is provided with an arc-shaped fitting surface matching the surface of the cylinder 71 and is connected to the cylinder 71 by welding. Figure 5 As shown in , a spiral groove 731 is provided at the inner bottom of the connection seat 73, and a block 741 protruding and snapped into the spiral groove 731 is provided at the bottom of the connection block 74. The block 741 is an elastic block connected to the connection block 74, and two symmetrically distributed blocks 741 are provided on the connection block 74, and the spiral groove 731 is provided with two blocks 741 that are snapped into the block 741 respectively. It can be understood that two symmetrically distributed slots are provided on the connection block 74, and the block 741 is placed in the slot through a connecting portion, and the width of the connecting portion is slightly smaller than the width of the slot, so a certain gap is left between the connecting portion and the side of the connecting block slot to ensure that the connecting portion connected with the block has a certain elasticity for easy expansion and contraction, and can be conveniently detached and connected to the connection seat 73.

[0028] For better sealing, the connection block 74 is provided with a sealing ring 75 arranged between the connection block 74 and the connection seat 73, and the connection block 74 is provided with an installation groove for installing and arranging the sealing ring 75. The sealing ring 75 is an O-ring, and the inner diameter of the sealing ring is slightly smaller than the outer diameter of the installation groove, ensuring that there is a certain interference between the sealing ring 75 and the connection block 74, and the sealing ring is effectively pressed downward against the wall of the connection seat by rotating the installation to achieve a sealing effect.

[0029] In the present invention, one end of the connection block 74 is connected to the connection seat 73, and the other end is snap-connected to the first header assembly 1, and a sealing gasket is provided between the connection block 74 and the first header assembly 1. It can be set to the same connection structure as the second header assembly or a conventional snap-on connection that is easy to disassemble.

[0030] Figure 1 The present invention is a schematic structural diagram of a parallel flow condenser for an automobile, which includes a first manifold assembly 1 and a second manifold assembly 2 arranged in parallel, a plurality of flat tubes 4 distributed in parallel are arranged between the first manifold assembly 1 and the second manifold assembly 2, and the two ends of the flat tubes 4 are respectively connected to the first manifold assembly 1 and the second manifold assembly 2; the second manifold assembly 2 is also provided with an air intake pipe 6, an inlet and outlet bracket 8 and a liquid outlet pipe 9, a liquid receiver-drier 7 is connected to the first manifold assembly 1, and a sealing gasket is provided at the connection portion between the liquid receiver-drier 7 and the first manifold assembly 1.

[0031] The parallel flow condenser further comprises an upper plate 5 and a lower plate 10 arranged outside the flat tube 4, and both the upper plate 5 and the lower plate 10 are arranged parallel to the flat tube 4; a plurality of channels are arranged on the flat tube 4 and along the length direction of the flat tube 4, and the plurality of channels are arranged in parallel.

[0032] Fins 3 are provided between adjacent flat tubes to increase the heat exchange efficiency with the air.

[0033] The first header assembly 1 includes a left header and plugging covers installed at both ends of the left header, and a plurality of baffles are evenly distributed in the left header, and a plurality of mounting holes for mounting flat tubes and baffles are provided on the left header. The second header assembly includes a right header and plugging covers installed at both ends of the right header, and a plurality of baffles are evenly distributed in the right header, and a plurality of mounting holes for mounting flat tubes and baffles are provided on the right header.

[0034] The working principle of the parallel flow condenser for automobiles of the present invention is:

[0035] The refrigerant flows in a plurality of porous flat tubes 4, and the cooled air flows along the outside of the porous flat tubes 4. The refrigerant is condensed when it is cooled, and the heat in the refrigerant is released, thereby changing the refrigerant from gas to liquid. The high-pressure and high-temperature gas refrigerant delivered from the compressor of the automobile air-conditioning system enters the upper part of the second header assembly 2 of the condenser from the air inlet pipe, and the refrigerant is evenly distributed to each porous flat tube 4 through a plurality of partitions 13. The condensed liquid flows to the lower part of the condenser due to gravity, and flows out of the condenser from the liquid outlet pipe assembly 9 of the second header assembly 2. During the refrigeration process, the hot air generated on the surface of the condenser flows out through the gap in the fins 3, releasing the heat in the refrigerant, thereby changing the refrigerant from gas to liquid. The use of this new structure condenser can reduce costs and reduce the volume occupied by the air-conditioning system in the front cabin of the car.

[0036] The parallel flow condenser of the present invention has good applicability, low cost, is easy to install, arrange and maintain, realizes condensation and evaporation of the refrigerant in the condenser, and has good application prospects.

[0037] The present invention is described above by way of example in conjunction with the accompanying drawings, but the present invention is not limited to the above manner. As long as various non-substantial improvements made using the method concept and technical solution of the present invention or direct applications to other occasions are made, they all fall within the protection scope of the present invention.

Claims

1. A parallel flow condenser, Features: The invention comprises a first manifold assembly and a second manifold assembly arranged in parallel, wherein a flat tube having two ends connected to the first manifold assembly and the second manifold assembly respectively is provided between the first manifold assembly and the second manifold assembly; a liquid storage drier is connected to one side of the first manifold assembly, and a detachable connecting block is provided on the liquid storage drier; an air inlet pipe and a liquid outlet pipe are connected to the second manifold assembly; the air inlet pipe and the liquid outlet pipe are supported and connected to the second manifold assembly by inlet and outlet brackets; the connecting section of the inlet and outlet brackets is provided with an arc-shaped groove for matching the wall surface of the tube body connected to the second manifold, and is connected to the wall surface of the tube body by welding; the extending end of the inlet and outlet brackets is provided with connecting holes respectively passing through the air inlet pipe and the liquid outlet pipe, and one end of the air inlet pipe and the liquid outlet pipe is connected to the The other end of the second collecting pipe assembly passes through the connecting through-hole on the inlet and outlet brackets and is connected to the external inlet and outlet pipes; the liquid storage dryer includes a cylinder, a connecting hole is provided on the cylinder, a connecting seat is provided on the connecting hole, and the connecting block is detachably connected to the connecting seat; a spiral groove is provided on the inner bottom of the connecting seat, and a block protruding and snapping into the spiral groove is provided at the bottom of the connecting block; the block is an elastic block connected to the connecting block, and two symmetrically distributed blocks are provided on the connecting block, and the spiral groove is provided with two blocks respectively snapping into the blocks; the connecting seat is provided with an arc-shaped fitting surface matching the surface of the cylinder, and is connected to the cylinder by welding; the connecting block is provided with a sealing ring arranged between the connecting block and the connecting seat.

2. The parallel flow condenser according to claim 1, Features: One end of the connection block is connected to the connection seat, and the other end is connected to the first header assembly by snap-fitting. A sealing gasket is provided between the connection block and the first header assembly.

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