Front wall detachable heat pump air conditioner

Abstract

The application discloses a front wall detachable heat pump air conditioner. It comprises an air inlet box and an air distribution box. The air inlet box comprises an air inlet assembly and a blower assembly. The air inlet assembly and the blower assembly are arranged in a front-rear stacking mode, and the air inlet assembly is arranged below the blower assembly. The air distribution box is sequentially arranged with an evaporator assembly, a heat pump assembly and a warm air assembly. The evaporator assembly, the heat pump assembly and the warm air assembly are arranged in a front-rear stacking mode in the air distribution box. The blower motor, the evaporator assembly, the heat pump assembly and the warm air assembly can be replaced through the front wall sheet metal. The air conditioner assembly does not need to be taken out from the cockpit, the maintainability of the air conditioner after sale is improved, the maintenance cost is reduced, and the maintenance time is shortened.

Description

Technical Field

[0001] This invention belongs to the field of automotive heat pump air conditioning technology, specifically relating to a heat pump air conditioner with a detachable front panel. Background Technology

[0002] With the development and popularization of new energy vehicles, more and more car air conditioners are using heat pumps to heat the passenger compartment in order to improve driving range. However, whether it is a traditional air conditioner or a heat pump air conditioner, as long as it is located in the passenger compartment, the problems of difficult disassembly and installation and time-consuming and labor-intensive maintenance will always exist. In particular, after the air conditioner uses new heat pump technology, the possibility of failure has increased. The vehicle manufacturer urgently needs to improve the ease of maintenance and operation of heat pump air conditioners to reduce maintenance costs.

[0003] Car air conditioners are located in the driver's cabin. If after-sales service requires repair or replacement of major functional components, the dashboard must first be disassembled, then the air conditioning assembly removed from the cabin, and finally the air conditioner disassembled for repair or replacement of major functional components. This repair operation is not only labor-intensive and time-consuming, but also very inconvenient, and can easily damage the driver's cabin. Traditional car air conditioning components include a blower motor, evaporator, and heater core. The blower motor provides airflow into the vehicle, the evaporator is used for cooling, and the heater core is used for heating. In addition to the above components, new energy vehicle heat pump air conditioners also have a heat pump core, which can also be used to heat the vehicle interior.

[0004] Due to the limited space and structure inside the cockpit, it is not possible to replace the air conditioning components inside the vehicle. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a heat pump air conditioner with a detachable front panel. By ensuring that the housing can be disassembled along the opening direction of the front panel, the blower motor, evaporator assembly, heater assembly, and heat pump assembly can be replaced, enabling after-sales maintenance of functional components on-vehicle without disassembling the entire air conditioning assembly.

[0006] The technical solution adopted in this invention is: a heat pump air conditioner with a detachable front cover, including an air inlet box and an air distribution box. The air inlet box includes an air inlet assembly and a blower assembly, which are stacked front to back and the air inlet assembly is located below the blower assembly. An evaporator assembly, a heat pump assembly, and a heating air assembly are arranged sequentially in the air distribution box, which are stacked front to back and staggered in the air distribution box.

[0007] In a further preferred configuration, an air intake assembly fixing screw post is provided above the air intake assembly, and an air intake assembly limiting buckle is provided on the air intake box. The air intake assembly is fixed to the air intake box by the cooperation of the air intake assembly fixing screw post and the air intake assembly limiting buckle.

[0008] In a further preferred configuration, the air inlet assembly is a rectangular frame opening structure.

[0009] In a further preferred configuration, the blower assembly includes a blower motor located inside the upper and lower blower housings. The blower motor is fixed to the upper blower housing via a combination of blower fixing screws and upper and lower blower housing fixing screw posts.

[0010] In a further preferred configuration, the evaporator assembly has a front evaporator housing at the front and a rear evaporator partition at the rear, with the rear evaporator partition located between the evaporator assembly and the heat pump assembly.

[0011] In a further preferred configuration, the evaporator assembly has a built-in evaporator core, the heat pump assembly has a built-in heat pump core, and the heating assembly has a built-in heating core.

[0012] In a further preferred configuration, the air inlet box and the air distribution box are located inside the air conditioning outer box at the front opening on the front sheet metal.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention optimizes the positional and structural relationships of various functional components and improves the assembly structure of the air conditioning unit, enabling the air conditioning functional components to be detachable from the front without replacing the air conditioner.

[0015] This invention ensures that all performance indicators of the air conditioner are guaranteed, and by optimizing the structural positional relationship of the blower motor and three heat exchange functional components, the functional components can be replaced through the front panel.

[0016] This invention allows for the replacement of the blower motor, evaporator assembly, heat pump assembly, and heater assembly via the front panel sheet metal, eliminating the need to remove the air conditioning assembly separately from the driver's cabin. This improves the after-sales maintainability of the air conditioning system, reduces maintenance costs, and shortens maintenance time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a partial structure of the front bulkhead of the vehicle.

[0018] Figure 2 for Figure 1 Schematic diagram of the front structure after removing the outer casing of the air conditioner;

[0019] Figure 3 This is a schematic diagram of an air conditioner structure;

[0020] Figure 4 This is a schematic diagram of the disassembly and assembly structure of the air inlet box;

[0021] Figure 5 This is a diagram showing the disassembly and assembly sequence of the air inlet box;

[0022] Figure 6This is a diagram showing the disassembly and assembly sequence of the evaporator assembly;

[0023] Figure 7 A schematic diagram showing the disassembly and assembly sequence of the heat pump and heating system;

[0024] Figure 8 This is a cross-sectional view of the air distribution box.

[0025] In the diagram, 100 - Air conditioner outer casing; 110 - Front sheet metal; 200 - Front opening; 210 - Air inlet casing; 220 - Distributor casing; 300 - Air inlet assembly; 310 - Blower assembly; 320 - Evaporator assembly; 330 - Heat pump assembly; 340 - Heating assembly; 400 - Air inlet assembly fixing screw post; 410 - Air inlet assembly limit buckle; 500 - Blower lower housing; 510 - Blower upper housing; 520 - Blower motor; 530 - Blower upper and lower housing fixing screw post; 540 - Blower fixing screw; 600 - Evaporator front housing; 700 - Evaporator rear partition; 800 - Evaporator core; 810 - Heat pump core; 820 - Heating core. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but these descriptions do not constitute a limitation on the present invention.

[0027] like Figure 1 , Figure 2 As shown, the present invention includes an air inlet box 210 and an air distribution box 220, which are located inside the air conditioner outer casing 100 at the front opening 200 on the front sheet metal 110, as... Figure 3 As shown, the air inlet box 210 includes an air inlet assembly 300 and a blower assembly 310, which are stacked one after the other, with the air inlet assembly 300 located below the blower assembly 310. The air distribution box 220 contains an evaporator assembly 320, a heat pump assembly 330, and a heater assembly 340, which are stacked one after the other and staggered within the air distribution box 220.

[0028] like Figure 4 As shown, an air intake assembly fixing screw post 400 is provided above the air intake assembly 300, and an air intake assembly limiting buckle 410 is provided on the air intake housing 210. The air intake assembly 300 is fixed to the air intake housing 210 through the cooperation of the air intake assembly fixing screw post 400 and the air intake assembly limiting buckle 410. The air intake assembly 300 has a rectangular frame opening structure.

[0029] like Figure 5As shown, the blower assembly 310 is equipped with a blower motor 520. The blower motor 520 is located inside the upper blower housing 510 and the lower blower housing 500. The blower motor 520 is fixed to the upper blower housing 510 by the cooperation of the blower fixing screw 540 and the upper and lower blower housing fixing screw post 530. The upper and lower blower housing fixing screw post 530 is located on the upper blower housing 510.

[0030] The airflow passes through the air inlet of the air inlet assembly 300, then through the air inlet assembly 300 and the blower assembly 310, and then into the air distribution box 220, finally providing airflow to the passenger compartment; the air inlet box 210 provides airflow to the air conditioner by working with the blower motor 520.

[0031] When the blower motor 520 needs to be replaced on the vehicle, remove the air conditioning outer casing 100 to expose the front opening 200. Remove the air intake assembly 300 and the lower blower housing 500 in sequence through the front opening 200. After rotating the blower motor 520, the blower motor 520 can be removed.

[0032] like Figure 6 , Figure 7 As shown, the evaporator assembly 320 has an evaporator front housing 600 in front and an evaporator rear baffle 700 behind, with the evaporator rear baffle 700 located between the evaporator assembly 320 and the heat pump assembly 330.

[0033] When it is necessary to replace the evaporator assembly 320, heat pump assembly 330, and heater assembly 340, the evaporator front housing 600 can be removed through the front opening 200, and then the evaporator assembly 320 can be taken out; then the evaporator rear partition 700 can be removed, and then the heat pump assembly 330 and heater assembly 340 can be taken out from bottom to top in sequence.

[0034] like Figure 8 As shown, the evaporator assembly 320 has a built-in evaporator core 800, the heat pump assembly 330 has a built-in heat pump core 810, and the heater assembly 340 has a built-in heater core 820. The airflow from the air inlet box 210 passes sequentially through the evaporator core 800, the heat pump core 810, and the heater core 820, and finally reaches the air outlet of the air distribution box 220.

[0035] Example:

[0036] like Figure 1 , Figure 2 As shown, after lifting the front hood and removing the air conditioning unit 100, the air conditioner can be seen through the front opening 200. The air conditioner adopts a two-box structure: one side is the air intake box 210; the other side is the air distribution box 220.

[0037] like Figure 2 , Figure 4 , Figure 5As shown, the air intake assembly fixing screw post 400 can be removed through the front opening 200 along the X direction of its opening. After loosening the air intake assembly limit buckle 410, the air intake assembly 300 can be removed. Then, after removing the four blower upper and lower housing fixing screw posts 530 along the Z direction, the blower lower housing 500 can be removed along the Z direction. After removing the blower fixing screw 540, the blower motor 520 can be rotated along the Z axis to remove the blower motor 520.

[0038] like Figure 2 , Figure 3 and Figure 6 As shown, the evaporator front housing 600 can be removed along the X direction through the front opening 200. After being removed along the X direction through the front opening 200, the evaporator assembly 320 can also be removed along the X direction.

[0039] like Figure 6 , Figure 7 As shown, after removing the evaporator front housing 600 and evaporator assembly 320 sequentially along the X direction through the front opening 200, the evaporator rear partition 700 is then removed along the X direction. Finally, the heat pump assembly 330 and the heater assembly 340 are removed sequentially along the X direction. Figure 8 As shown, six parts are stacked sequentially along the X direction: evaporator front housing 600, evaporator core 800 (a sub-part of evaporator assembly 320), evaporator rear baffle 700, heat pump core 810 (a sub-part of heat pump assembly 320), and heater core 820 (a sub-part of heater assembly 340).

[0040] The invention is placed inside the cockpit, but its functional components, such as the blower motor, evaporator, heater core, and heat pump core, can all be replaced through the front panel sheet metal. The air conditioning assembly does not need to be removed from the cockpit separately, so that its functional components can be repaired and replaced. This improves after-sales maintainability, reduces maintenance costs, and shortens maintenance time.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A heat pump air conditioner with a detachable front fascia, characterized in that: The system includes an air inlet box (210) and an air distribution box (220). The air inlet box (210) includes an air inlet assembly (300) and a blower assembly (310). The air inlet assembly (300) and the blower assembly (310) are stacked one after the other, and the air inlet assembly (300) is located below the blower assembly (310). The air distribution box (220) contains an evaporator assembly (320), a heat pump assembly (330), and a heater assembly (340) arranged in sequence. The evaporator assembly (320), the heat pump assembly (330), and the heater assembly (340) are stacked one after the other and staggered in the air distribution box (220). The air intake assembly (300) is provided with an air intake assembly fixing screw post (400) on the top, and the air intake box (210) is provided with an air intake assembly limiting buckle (410). The air intake assembly (300) is fixed to the air intake box (210) by the cooperation of the air intake assembly fixing screw post (400) and the air intake assembly limiting buckle (410). The blower assembly (310) is equipped with a blower motor (520), which is located inside the upper blower housing (510) and the lower blower housing (500). The blower motor (520) is fixed to the upper blower housing (510) by the cooperation of the blower fixing screw (540) and the upper and lower blower housing fixing screw post (530). The evaporator assembly (320) has an evaporator front housing (600) at the front and an evaporator rear partition (700) at the rear. The evaporator rear partition (700) is located between the evaporator assembly (320) and the heat pump assembly (330). The air inlet box (210) and the air distribution box (220) are located inside the air conditioning outer box (100) at the front opening (200) on the front sheet metal (110); After removing the front housing (600) of the evaporator through the front opening (200), the evaporator assembly (320) can be taken out along the direction of the front opening; after removing the rear partition (700) of the evaporator, the heat pump assembly (330) and the heater assembly (340) can be taken out from bottom to top in sequence.

2. A heat pump air conditioner with a detachable front fascia according to claim 1, characterized in that: The air intake assembly (300) has a rectangular frame opening structure.

3. A heat pump air conditioner with a detachable front fascia according to claim 1, characterized in that: The evaporator assembly (320) has an evaporator core (800) built in, the heat pump assembly (330) has a heat pump core (810) built in, and the heater assembly (340) has a heater core (820) built in.

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