CN216048492U

CN216048492U - High-efficiency indoor double-row heat exchanger

Info

Publication number: CN216048492U
Application number: CN202122151979.0U
Authority: CN
Inventors: 张子瀚; 马智斌; 陈彬; 崔明路; 宋本康; 铁静; 常绪涛; 张恒利; 王宇
Original assignee: Yuxin Automotive Thermal Management Technology Co Ltd
Current assignee: Yuxin Automotive Thermal Management Technology Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-03-15
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses a high-efficiency indoor double-row heat exchanger, which comprises a first connecting block, a first collecting pipe, a second collecting pipe, fins, a protective plate, a third collecting pipe, a fourth collecting pipe, an air inlet pressing plate, a liquid outlet pressing plate, a partition plate, a second connecting block and flat pipes, wherein the first collecting pipe and the second collecting pipe which are connected in parallel are connected through the first two groups of connecting blocks, the first collecting pipe and the second collecting pipe are respectively connected with the third collecting pipe and the fourth collecting pipe through the uniformly arranged flat pipes, the upper side and the lower side of each flat pipe are respectively provided with the protective plate, the third collecting pipe and the fourth collecting pipe are connected through the second connecting block, the partition plate is arranged at the joint of the third collecting pipe and the fourth collecting pipe, the air inlet pressing plate is arranged on the right side of the third collecting pipe, and the liquid outlet pressing plate is arranged on the right side of the fourth collecting pipe, the device has a simple structure, improves the heat exchange performance of indoor heat exchange and the uniformity of a temperature field through the double-row heat exchanger, and avoids the phenomenon of reheating through the adjacent air inlet pressing plate and liquid outlet pressing plates, thereby ensuring the comfort of passengers in the passenger compartment.

Description

High-efficiency indoor double-row heat exchanger

Technical Field

The utility model relates to the technical field of new energy automobile heat pump air conditioners, in particular to a high-efficiency indoor double-row heat exchanger.

Background

For new energy automobiles, winter heating is a problem which is relatively concerned by users, and as the energy efficiency ratio of a heat pump air conditioner is high, the endurance mileage can be prolonged in winter, so that the heat pump air conditioner is increasingly researched and applied; an indoor heat exchanger of the heat pump automobile air conditioner is arranged in HVAC (heating ventilation air conditioning), and works as a condenser in winter to provide heat for a passenger compartment; in order to ensure the comfort of passengers in the passenger compartment, the heat exchange performance of indoor heat exchange and the uniformity of a temperature field need to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the existing defects and provide an efficient indoor double-row heat exchanger, which can meet the requirements of passenger compartment customers on winter heating performance and heating comfort and effectively solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high-efficient indoor double heat exchanger, including connecting block one, pressure manifold two, the fin, the backplate, pressure manifold three, pressure manifold four, admit air the clamp plate, go out the liquid clamp plate, a separator, connecting block two and flat pipe, pressure manifold one is connected through two sets of connecting blocks one with parallelly connected pressure manifold two, and pressure manifold one and two flat pipe of crossing align to grid are connected with pressure manifold three and pressure manifold four respectively, both sides all are equipped with the backplate about the flat pipe, and be equipped with the fin between backplate and the flat pipe of upper end, pressure manifold three and pressure manifold four are connected through connecting block two, be equipped with the baffle on pressure manifold three and the pressure manifold four, and pressure manifold three right sides are equipped with the clamp plate that admits air, pressure manifold four right sides go out the liquid clamp plate, and admit air the clamp plate and be located out liquid clamp plate upper end.

Furthermore, the second connecting block is uniformly provided with overflowing holes, the number of the overflowing holes is 2-7, the width of the overflowing holes is 3-5mm, and the centers of the overflowing holes and the centers of the flat pipes are located on the same straight line.

Further, the flat pipes are divided into four flows by the second partition plates and the second connecting blocks, the flat pipes in the front row and the back row are respectively a first flow, a second flow, a fourth flow and a third flow from top to bottom, the number of the flat pipes in the second flow is the same as that of the flat pipes in the third flow, and the number of the flat pipes in the first flow is the same as that of the flat pipes in the fourth flow and accounts for 55% -65% of the total number.

Compared with the prior art, the utility model has the beneficial effects that: when the heat exchanger is divided into two flows, the flow speed of a refrigerant in the flat pipe is the minimum, the refrigerant is distributed unevenly, the heat exchange performance of the heat exchanger is poor, and the temperature field is uneven; at the moment, the flat pipes passing through the four flows can not only increase the flow velocity, thereby improving the heat exchange efficiency, but also improve the distribution uniformity of the refrigerant, namely, the partition plate and the connecting block divide the refrigeration flow of the flat pipes into four flows, the refrigerant flows from the first flow to the second flow through the collecting pipe, then flows to the third flow through the overflowing hole, the refrigerant in the third flow is discharged through the liquid outlet pressing plate after flowing through the fourth flow, thereby improving the heat exchange performance of the indoor heat exchanger and the uniformity of a temperature field, meanwhile, the refrigerant can also increase the uniformity of the refrigerant when flowing through the overflowing hole, and the adjacent air inlet pressing plate and liquid outlet pressing plate are added, thereby avoiding the phenomenon of reheating, the device has simple structure, the heat exchange performance of indoor heat exchange and the uniformity of the temperature field are improved through the double-row heat exchanger, and the comfort of passengers in a passenger compartment is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention.

In the figure: the structure comprises a first connecting block 1, a first collecting pipe 2, a second collecting pipe 3, fins 4, a protective plate 5, a third collecting pipe 6, a fourth collecting pipe 7, an air inlet pressing plate 8, a liquid outlet pressing plate 9, a partition plate 10, a second connecting block 11, flat pipes 12 and an overflowing hole 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-efficiency indoor double-row heat exchanger comprises a first connecting block 1, a first collecting pipe 2, a second collecting pipe 3, fins 4, a protective plate 5, a third collecting pipe 6, a fourth collecting pipe 7, an air inlet pressure plate 8, a liquid outlet pressure plate 9, a partition plate 10, a second connecting block 11 and flat pipes 12, wherein the first collecting pipe 2 and the second collecting pipe 3 which are connected in parallel are connected through the first connecting block 1, the first collecting pipe 2 and the second collecting pipe 3 are respectively connected with the third collecting pipe 6 and the fourth collecting pipe 7 through the flat pipes 12 which are uniformly arranged, the upper side and the lower side of each flat pipe 12 are provided with the protective plate 5, the fins 4 are arranged between the protective plate 5 at the upper end and the flat pipes 12, the third collecting pipe 6 and the fourth collecting pipe 7 are connected through the second connecting block 11, the partition plate 10 is arranged on the third collecting pipe 6 and the fourth collecting pipe 7, the air inlet pressure plate 8 is arranged on the right side of the third collecting pipe 6, the liquid outlet pressure plate 9 on the right side of the fourth collecting pipe 7, and the air inlet pressure plate 8 is positioned at the upper end of the liquid outlet pressure plate 9, the connecting block II 11 is uniformly provided with overflowing holes 13, the number of the overflowing holes 13 is 2-7, the width of the overflowing holes 13 is 3-5mm, the centers of the overflowing holes 13 and the flat tubes 12 are positioned on the same straight line, refrigerant can be effectively divided equally, the flat tubes 12 are divided into four flows by the partition plate 10 and the connecting block II 11, the flat tubes 12 in the front row and the rear row are respectively a first flow, a second flow, a fourth flow and a third flow from top to bottom, the flat tubes 12 in the second flow are the same as the flat tubes 12 in the third flow, the flat tubes 12 in the first flow and the flat tubes 12 in the fourth flow are the same in number and account for 55% -65% of the total number, the refrigerant enters the flat tubes 12 in the first flow from the air inlet pressure plate 8 through the collecting pipe III 6, then flows into the flat tubes 12 in the second flow through the collecting pipe I2, and is uniformly distributed into the flat tubes 12 in the third flow through the overflowing holes 13, then the heat flows to the flat pipe 12 of the fourth flow through the collecting pipe two 3, and finally the heat is discharged from the liquid outlet pressing plate 9, so that a circulating flow loop is formed, the heat transfer coefficients, the flowing speeds and the flowing states of the inner surface and the outer surface of the four flow pipes are the same, the heat exchange quantity is the same, the total heat exchange quantity is the maximum, the heat exchange performance of indoor heat exchange and the uniformity of a temperature field are improved, and the comfort of passengers in a passenger compartment is ensured.

When in use: the refrigerant enters the flat tube 12 of the first flow from the air inlet pressure plate 8 through the header pipe three 6, then flows through the flat tube 12 flowing to the second flow through the header pipe one 2, at the moment, the refrigerant is uniformly distributed to the flat tube 12 of the third flow through the overflowing hole 13, then flows to the flat tube 12 of the fourth flow through the header pipe two 3, and finally is discharged from the liquid outlet pressure plate 9, so that a circulating flow loop is formed, and thus, the heat transfer coefficients and the flow speeds of the inner surface and the outer surface of the four flow tubes are the same, the states are the same, the heat exchange quantity is the same, the total heat exchange quantity is the maximum, the heat exchange performance of indoor heat exchange and the uniformity of a temperature field are improved, and the comfort of passengers in a passenger compartment is guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient indoor double heat exchanger, includes connecting block one (1), pressure manifold one (2), pressure manifold two (3), fin (4), backplate (5), pressure manifold three (6), pressure manifold four (7), admit air clamp plate (8), go out liquid clamp plate (9), baffle (10), connecting block two (11) and flat pipe (12), its characterized in that: collecting main (2) and parallelly connected collecting main two (3) are connected through two sets of connecting blocks one (1), and collecting main (2) and collecting main two (3) are connected with collecting main three (6) and collecting main four (7) respectively through evenly arranged flat pipe (12), both sides all are equipped with backplate (5) about flat pipe (12), and be equipped with fin (4) between backplate (5) and flat pipe (12) of upper end, collecting main three (6) and collecting main four (7) are connected through connecting block two (11), be equipped with baffle (10) on collecting main three (6) and collecting main four (7), and collecting main three (6) right side is equipped with inlet clamp plate (8), collecting main four (7) right side goes out liquid clamp plate (9), and inlet clamp plate (8) are located out liquid clamp plate (9) upper end.

2. A high efficiency dual bank indoor heat exchanger as claimed in claim 1 wherein: overflowing holes (13) are uniformly formed in the second connecting block (11), the number of the overflowing holes (13) is 2-7, the width of each overflowing hole (13) is 3-5mm, and the centers of the overflowing holes (13) and the centers of the flat pipes (12) are located on the same straight line.

3. A high efficiency dual bank indoor heat exchanger as claimed in claim 1 wherein: the flat pipes (12) are divided into four flows by the partition plates (10) and the second connecting blocks (11), the flat pipes (12) in the front row and the rear row are respectively a first flow, a second flow, a fourth flow and a third flow from top to bottom, the number of the flat pipes (12) in the second flow is the same as that of the flat pipes (12) in the third flow, and the number of the flat pipes (12) in the first flow is the same as that of the flat pipes (12) in the fourth flow and accounts for 55% -65% of the total number.