Double-core condensation and PTC (Positive Temperature Coefficient) rapid heating cooperative system

Abstract

The utility model discloses a double-core condensation and PTC (Positive Temperature Coefficient) rapid heating collaborative system which comprises a bottom shell, two return air inlets are formed in the middle of the bottom shell, a condensation core is fixedly mounted in the middle of the bottom shell, a condensation fan is arranged at the upper end of the condensation core, two condensation pipes are arranged in the condensation core, evaporation cores are fixedly mounted on the two sides of the bottom shell, and the evaporation cores are arranged in the bottom shell. A PTC heater is fixedly installed on the side, away from the condensation core body, of the evaporation core body, a plurality of evaporation fans are fixedly installed on the two sides of the bottom shell correspondingly, a first end plate and a second end plate are fixedly installed on the two parts of the bottom shell correspondingly, a compressor, a gas-liquid separator and a four-way reversing valve are fixedly installed on the first end plate, and a control module is fixedly installed on the second end plate. The upper end of the bottom shell is fixedly connected with an upper shell through bolts. By arranging the double air return systems, the independent circulating air return systems are arranged at the front end and the rear end of the passenger car, independent temperature adjustment is carried out on the two ends of the passenger car, two air return circulations are formed in the passenger car through the air return ports, and the temperature difference of all parts in the passenger car can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vehicle air conditioner, and relates to a double-core condensation and PTC fast heating coordination system. BACKGROUND

[0002] In order to improve the riding experience of passengers during driving, the current passenger car is provided with a vehicle air conditioning system. Among them, the air conditioning system of large and medium-sized passenger cars is usually arranged on the top. The air conditioning system mainly has a heat pump system to provide hot air and cold air circulation, and the heat pump system includes a condensing core, an evaporating core, a compressor, an expansion valve and a reversing valve, etc. The temperature in the vehicle is adjusted by a control system.

[0003] However, since the passenger car usually has a long body, the current air conditioning system has the problems of slow heating and large temperature difference at different positions in the vehicle. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides a double-core condensation and PTC fast heating coordination system, which solves the problems in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A double-core condensation and PTC fast heating coordination system, comprising:

[0007] A bottom shell is bolted to the middle part of the top of the vehicle body, and two return air inlets are arranged in the middle part of the bottom shell.

[0008] A condensing core is fixedly installed in the middle part of the bottom shell, and a condensing fan is arranged at the upper end of the condensing core. Two condensing pipes are arranged in the condensing core, and the return air inlets are arranged on both sides of the condensing core.

[0009] Two evaporating cores are fixedly installed on the bottom shell and arranged on both sides of the condensing core, respectively. The evaporating core is arranged opposite to the return air inlet on the side close to the evaporating core.

[0010] A PTC heater is fixedly installed on the side of the evaporating core away from the condensing core.

[0011] A plurality of evaporating fans are fixedly installed on both sides of the bottom shell, and the air inlet of the evaporating fan is arranged opposite to the PTC heater, and the air outlet penetrates through the bottom of the bottom shell.

[0012] A first end plate is fixedly installed on the end part of the bottom shell, and a compressor, a gas-liquid separator and a four-way reversing valve are fixedly installed on the first end plate.

[0013] A second end plate is fixedly installed at a side of the bottom shell away from the first end plate, and a control module is fixedly installed on the second end plate.

[0014] An upper shell is bolted to the bottom shell, and the condensing fan penetrates the upper shell.

[0015] Optionally, the bottom shell comprises two symmetrically arranged installation shells, a connecting beam is fixedly installed between the two installation shells, the condensing core is installed on the connecting beam, the evaporating core is installed on the installation shell, and the first end plate and the second end plate are bolted to the two installation shells on the two sides, respectively.

[0016] Optionally, the installation shell is fixedly installed with a baffle between the condensing core and the evaporating core, the baffle is fixedly provided with an inclined baffle plate inclined to the side of the condensing core on the side close to the condensing core, and a return air hole is formed in the baffle close to the evaporating core.

[0017] Optionally, the upper shell comprises a fixed plate fixedly installed on the upper end of the condensing core, and side cover plates are hingedly installed on the two sides of the fixed plate and bolted to the two sides of the bottom shell, respectively.

[0018] Optionally, end cover plates are arranged at the two ends of the fixed plate and bolted to the bottom shell.

[0019] Optionally, a fresh air hole is formed in the middle of the inclined baffle plate.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. By setting the double return air system, the front end and the rear end of the passenger car are provided with independent circulating return air systems, the temperature of the two ends of the passenger car is independently adjusted, two return air cycles are formed in the vehicle through the return air holes, and the temperature difference of each part in the vehicle is reduced.

[0022] 2. The condensing core, the evaporating core, the compressor, the gas-liquid separator, the four-way reversing valve and other parts are connected through pipelines, the bottom shell is divided into two parts, the condensing core and the evaporating core are arranged in different parts, the installation of each part is facilitated, and the manufacturing difficulty of the bottom shell is reduced.

[0023] 3. The evaporating core, the evaporating fan and the PTC heater and other structures are installed on the two sides of the bottom shell, the side cover plates on the two sides of the upper shell can be hingedly opened, and the maintenance of the related structures installed on the two sides of the bottom shell is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1is an internal structure schematic view of the embodiment of the utility model;

[0025] Figure 2 is a bottom shell structure schematic view of the embodiment of the utility model;

[0026] Figure 3 is an installation shell section structure schematic view of the embodiment of the utility model;

[0027] Figure 4 is an upper shell structure schematic view of the embodiment of the utility model.

[0028] Reference signs: 1, bottom shell;11, return air inlet;2, condensing core;21, condensing fan;3, evaporating core;31, evaporating fan;4, PTC heater;41, first end plate;42, second end plate;5, upper shell;51, fixed plate;52, side cover plate;53, end cover plate;101, installation shell;102, connecting beam;103, wind baffle;104, inclined wind baffle;105, fresh air inlet. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0030] Please refer to Figures 1 to 4 A double-core condensing and PTC rapid heating cooperative system is disclosed in the embodiments of the utility model, which comprises a bottom shell 1, the bottom shell 1 is bolted to the middle part of the top of the vehicle body, two return air inlets 11 are arranged in the middle part of the bottom shell 1, a condensing core 2 is fixedly installed in the middle part of the bottom shell 1, a condensing fan 21 is arranged at the upper end of the condensing core 2, two condensing pipes are arranged in the condensing core 2, the return air inlets 11 are located on the two sides of the condensing core 2, an evaporating core 3 is fixedly installed on the two sides of the bottom shell 1, the evaporating core 3 is close to the side of the evaporating core 3 opposite to the return air inlet 11, a PTC heater 4 is fixedly installed on the side of the evaporating core 3 away from the condensing core 2, a plurality of evaporating fans 31 are fixedly installed on the two sides of the bottom shell 1, the air inlet of the evaporating fan 31 is opposite to the PTC heater 4, the air outlet of the evaporating fan 31 penetrates the bottom of the bottom shell 1, a first end plate 41 and a second end plate 42 are fixedly installed on the two parts of the bottom shell 1, a compressor, a gas-liquid separator and a four-way reversing valve are fixedly installed on the first end plate 41, a control module is fixedly installed on the second end plate 42, an upper shell 5 is bolted and fixedly connected to the upper end of the bottom shell 1, and the condensing fan 21 penetrates the upper shell 5.

[0031] Specifically, the condensing core 2 is arranged in the middle of the bottom shell 1, and the evaporating core 3 and the evaporating fan 31 are arranged on both sides of the bottom shell 1, cooperating with the two return air inlets 11 at the bottom of the bottom shell 1 to form a double return air system. The PTC heater 4 is installed on the side of the evaporating core 3, and the PTC heater 4 cooperates with the evaporating core 3 to form a hot air system.

[0032] In this way, by arranging the double return air system, the front end and the rear end of the passenger car are provided with independent circulating return air systems, the temperature of the two ends of the passenger car is independently adjusted, two return air circulations are formed in the vehicle through the return air inlets 11, and the temperature difference of each part in the vehicle is reduced.

[0033] The PTC heater 4 is arranged on the side of the evaporating core 3, and the PTC heater 4 cooperates with the heat pump system composed of the condensing core 2, the evaporating core 3 and the like to take advantage of the fast heating of the PTC heater 4, so that the cold air of the evaporating fan 31 is quickly heated to increase the temperature in the vehicle. With the heat pump system starting to work, the PTC heater 4 is turned off to reduce energy consumption.

[0034] In some feasible manners, the bottom shell 1, the upper shell 5, the first end plate 41 and the second end plate 42 are all special-shaped plate-shaped members or box-shaped members arranged according to the installation needs, the condensing core 2 includes a rectangular shell, and one-way condensing pipes are arranged on both sides of the shell respectively and used to form independent heat pump systems with the evaporating cores 3 on both sides. The two condensing pipes are installed on the same condensing core 2 and share the same condensing fan 21 system, which is beneficial to improving the integration of the system and reducing the installation area. At the same time, when a single heat pump system is running, the larger condensing core 2 is beneficial to heat dissipation of the refrigerant. The heat pump system further includes a compressor, a gas-liquid separator and a four-way reversing valve installed on the first end plate 41, which are controlled by a control module. The heat pump system is a prior art, and details are not repeated here.

[0035] The control module and the heat pump system components are arranged on the first end plate 41 and the second end plate 42, which is beneficial to reducing the width of the bottom shell 1 and reducing the installation area on the one hand, and reducing the influence of vibration and temperature change of the heat pump system during operation on the stability of the control module on the other hand.

[0036] As a specific embodiment of the double-core condensing and PTC fast heating cooperative system provided in the application, please refer to Figure 2 The bottom shell 1 includes two symmetrically arranged mounting shells 101, a connecting beam 102 is fixedly installed between the two mounting shells 101, the condensing core 2 is installed on the connecting beam 102, the evaporating core 3 is installed on the mounting shell 101, and the first end plate 41 and the second end plate 42 are bolted and fixed on both sides of the two mounting shells 101.

[0037] Overall, the condensing core 2, the evaporating core 3, the compressor, the gas-liquid separator and the four-way reversing valve are connected by pipelines, and the bottom shell 1 is provided separately, so that the condensing core 2 and the evaporating core 3 are arranged in different parts, facilitating the installation of each part, and reducing the manufacturing difficulty of the bottom shell 1. The first end plate 41 and the second end plate 42 are connected and fixed at both ends of the bottom shell 1, improving the connection stability between the mounting shell 101 and the connecting beam 102.

[0038] Further, please refer to Figure 3 The mounting shell 101 is fixedly installed with a wind baffle 103 between the condensing core 2 and the evaporating core 3, and the wind baffle 103 is fixedly provided with an inclined wind plate 104 inclined to the side of the condensing core 2 on the side close to the condensing core 2. The wind baffle 103 is provided with a return air hole close to the evaporating core 3.

[0039] It should be understood that by arranging the wind baffle 103, a partition is formed between the return air hole 11 and the condensing core 2 and the condensing fan 21, reducing the gas exchange between the two parts, thereby reducing the mutual interference between the two parts. At the same time, by arranging the inclined wind plate 104 to extend downward to the condensing core 2, the area of the return air hole 11 can be reached, and the return air efficiency of the return air hole 11 can be improved.

[0040] In some feasible manners, the mounting shell 101 includes a bottom plate, the two ends of the bottom plate are fixedly connected with connecting plates, the wind baffle 103 and the connecting plates are fixedly connected, the first end plate 41 and the second end plate 42 are bolted to the connecting plates during installation, the upper end of the inclined wind plate 104 is fixedly connected with the upper end of the wind baffle 103, the lower end is bent and parallel to the bottom plate, the connecting beam 102 is a C-shaped piece, a plurality of connecting beams 102 are arranged along the length direction of the mounting shell 101, the two ends of the connecting beam 102 are bolted to the lower end of the wind baffle 103, and the condensing core 2 is bolted to the connecting beam 102.

[0041] Further, the inclined wind plate 104 is provided with a fresh air hole 105 in the middle.

[0042] It should be understood that the fresh air hole 105 is arranged in the middle of the inclined wind plate 104, so that the fresh air and the circulating air enter synchronously, which facilitates the fresh air to be adjusted to the same temperature as the circulating air in time, and also facilitates the fresh air to replace the circulating air uniformly, thereby improving the air freshness in the vehicle.

[0043] In some feasible manners, the fresh air hole 105 is connected with a fresh air system, and the fresh air system includes a blower and an air filtering device to improve the air quality in the vehicle.

[0044] As another specific embodiment of the dual-core condensing and PTC rapid heating cooperative system provided by the application, please refer to Figure 4The upper shell 5 comprises a fixed plate 51 fixedly installed on the upper end of the condensing core 2, and side cover plates 52 are hingedly installed on both sides of the fixed plate 51, and the two side cover plates 52 are respectively bolted to both sides of the bottom shell 1.

[0045] In combination with a specific use scene, the evaporation core 3, the evaporation fan 31 and the PTC heater 4 and other structures are installed on both sides of the bottom shell 1, and the side cover plates 52 on both sides of the upper shell 5 can be hingedly opened, so as to facilitate the maintenance and repair of the related structures installed on both sides of the bottom shell 1.

[0046] Further, end cover plates 53 are arranged at both ends of the fixed plate 51, and the end cover plates 53 are bolted to the bottom shell 1.

[0047] It should be understood that, by arranging the end cover plates 53, the first end plate 41 and the second end plate 42 can be independently opened, so as to facilitate the maintenance and repair of the position.

[0048] In some feasible manners, the fixed plate 51 is in a rectangular plate shape, and a through hole is arranged on the fixed plate 51 according to the position of the condensing fan 21, the side cover plate 52 is in an arc-shaped shell shape, the side cover plate 52 is connected with the fixed plate 51 through a hinge, and a sealing strip is arranged on the surface of the side cover plate 52. The end cover plate 53 is an arc-shaped cover plate arranged according to the shapes of the first end plate 41 and the second end plate 42.

[0049] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A dual-core condenser and PTC rapid heating synergistic system, characterized in that, include: Bottom shell (1), the bottom shell (1) is bolted to the middle of the top of the vehicle body, and the bottom shell (1) is provided with two return air vents (11) in the middle; A condenser core (2) is fixedly installed in the middle of the bottom shell (1). A condenser fan (21) is provided at the upper end of the condenser core (2). The condenser core (2) includes two condenser pipes. The return air inlet (11) is located on both sides of the condenser core (2). Evaporation core (3), two evaporation cores (3) are fixedly installed on the bottom shell (1) and located on both sides of the condensation core (2). The side of the evaporation core (3) closest to the evaporation core (3) faces the return air inlet (11); PTC heater (4), the PTC heater (4) is fixedly installed on the side of the evaporator core (3) away from the condenser core (2); Evaporation fan (31), multiple evaporation fans (31) are fixedly installed on both sides of the bottom shell (1), the air inlet of the evaporation fan (31) faces the PTC heater (4), and the air outlet penetrates the bottom of the bottom shell (1); The first end plate (41) is fixedly installed at the end of the bottom shell (1). The first end plate (41) is fixedly installed with a compressor, a gas-liquid separator and a four-way reversing valve. The second end plate (42) is fixedly installed on the bottom shell (1) at the end away from the first end plate (41), and a control module is fixedly installed on the second end plate (42). The upper shell (5) is bolted to the bottom shell (1), and the condenser fan (21) passes through the upper shell (5).

2. The dual-core condensation and PTC rapid heating synergistic system according to claim 1, characterized in that: The bottom shell (1) includes two symmetrically arranged mounting shells (101), and a connecting beam (102) is fixedly installed between the two mounting shells (101). The condensing core (2) is installed on the connecting beam (102), and the evaporating core (3) is installed on the mounting shell (101). The first end plate (41) and the second end plate (42) are respectively bolted to the two mounting shells (101).

3. The dual-core condensation and PTC rapid heating synergistic system according to claim 2, characterized in that: The mounting shell (101) has a baffle plate (103) fixedly installed between the condenser core (2) and the evaporator core (3). The baffle plate (103) has a sloping wind plate (104) fixedly installed on the side of the condenser core (2) that is inclined towards the side of the condenser core (2). The baffle plate (103) has a return air hole near the evaporator core (3).

4. The dual-core condensation and PTC rapid heating synergistic system according to claim 1, characterized in that: The upper shell (5) includes a fixing plate (51), which is fixedly installed on the upper end of the condenser core (2). Side cover plates (52) are hinged on both sides of the fixing plate (51), and the two side cover plates (52) are bolted to both sides of the bottom shell (1).

5. The dual-core condensation and PTC rapid heating synergistic system according to claim 4, characterized in that: The fixing plate (51) is provided with end cover plates (53) at both ends, and the end cover plates (53) are bolted to the bottom shell (1).

6. The dual-core condensation and PTC rapid heating synergistic system according to claim 3, characterized in that: A fresh air inlet (105) is provided in the middle of the inclined wind plate (104).

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