New energy automobile air conditioner refrigeration power structure

Abstract

The utility model discloses a new energy automobile air conditioner refrigeration power structure belongs to the automobile technical field. Its solved the following several problems of the air conditioning system in the current new energy automobile when adopting electric compressor: 1, electric compressor cost is higher, 2, the compressor needs to be installed on the car through the damping support, increased design development and hardware cost, 3, the assembly process is more, in addition to the assembly of mechanical structure still increased the assembly of high -voltage wire bundle, and increased the whole car insulation detection and high -voltage safety risk. Its main include drive motor and air conditioner compressor, drive motor transmission connection speed reducer, be equipped with refrigeration output shaft on the speed reducer, install main pulley on the refrigeration output shaft, be equipped with compressor input shaft on the air conditioner compressor, be equipped with from pulley on the compressor input shaft, be connected through the belt between main pulley and from pulley, install compressor clutch between the compressor input shaft and from pulley.

Description

Technical Field

[0001] This utility model belongs to the field of automotive technology, and more specifically, it relates to a power structure for air conditioning refrigeration in new energy vehicles. Background Technology

[0002] The air conditioning system plays a crucial role in new energy vehicles, significantly impacting not only the comfort of passengers but also the vehicle's energy consumption and range. The air conditioning system mainly consists of a refrigeration system, a heating system, an air supply system, a control system, and an air purification system. The refrigeration system typically includes components such as an electric compressor, condenser, pressure sensor, electronic expansion valve, and evaporator. The electric compressor draws in low-temperature, low-pressure gaseous refrigerant, compresses it into a high-temperature, high-pressure gas, then cools it into a liquid through the condenser, and finally expands and absorbs heat through the evaporator, thereby cooling the air inside the vehicle.

[0003] Current new energy vehicles use electric compressors, which consist of an electric motor, a motor controller, and a compressor mounted on the vehicle body via shock absorbers and brackets. Due to the use of electric compressors, the product cost is relatively high. Furthermore, to improve the overall NVH performance of the vehicle, extensive design and development work has been done on the shock absorbers and brackets, employing various structural forms to enhance NVH performance. The use of electric compressors also results in more assembly processes, including not only the mechanical assembly but also the assembly of high-voltage wiring harnesses, and increases the risks associated with vehicle insulation testing and high-voltage safety. Summary of the Invention

[0004] The purpose of this utility model is to provide a cooling power structure for air conditioning in new energy vehicles, so as to overcome the following problems existing in the air conditioning system of new energy vehicles using electric compressors in the prior art: 1. Electric compressors are expensive; 2. The compressor needs to be mounted on the vehicle body through a shock-absorbing bracket, which increases the design, development and hardware costs; 3. There are many assembly processes, including the assembly of high-voltage wiring harnesses in addition to the assembly of mechanical structures, and the risk of insulation testing and high-voltage safety of the whole vehicle is increased.

[0005] This utility model is achieved by the following technical solution: a power structure for air conditioning in a new energy vehicle, comprising a drive motor and an air conditioning compressor. The drive motor is connected to a reducer, and the reducer is provided with a refrigeration output shaft. A main pulley is installed on the refrigeration output shaft. The air conditioning compressor is provided with a compressor input shaft, and a driven pulley is installed on the compressor input shaft. The main pulley and the driven pulley are connected by a belt. A compressor clutch is installed between the compressor input shaft and the driven pulley.

[0006] Furthermore, the air conditioning compressor is fixedly mounted on the reducer.

[0007] Furthermore, the reducer has multiple reducer threaded holes, and the air conditioning compressor has multiple mounting holes that correspond one-to-one with the reducer threaded holes. Bolts are installed between the mounting holes and the corresponding reducer threaded holes.

[0008] Furthermore, the compressor clutch is an electromagnetic clutch, which is connected to the compressor input shaft and includes a pulley.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. Compared with electric compressors, the air conditioning compressor of this utility model does not require an additional electric motor for driving, but is directly driven by a reducer. The reducer is connected to the drive motor, which effectively reduces the overall vehicle cost.

[0011] 2. Compared with electric compressors, the air conditioner compressor described in this utility model has a simpler structure, which can save assembly time and effectively reduce the maintenance costs of air conditioners.

[0012] 3. Compared with electric compressors, the air conditioning compressor of this utility model reduces the cost of high-voltage wiring harness assembly and power distribution system, and also reduces the risks of vehicle insulation testing and high-voltage safety.

[0013] 4. This utility model designs an air conditioning compressor mounting structure on the reducer in the electric drive system of a new energy vehicle. The air conditioning compressor is directly mounted on the reducer housing, forming an air conditioning compressor + reducer mounting structure. Thus, the reducer and the air conditioning compressor share a set of shock absorption system, eliminating the need to set up additional brackets and shock absorption devices for the air conditioning compressor. This simplifies the structure and reduces costs, while improving the NVH performance of the entire vehicle, further reducing the overall vehicle cost and saving assembly time. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is the front view of this utility model.

[0016] In the diagram: 1. Air conditioning compressor; 2. Reducer; 3. Main pulley; 4. Driven pulley; 5. Belt; 6. Threaded hole of reducer; 7. Bolt; 8. Electromagnetic clutch. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0018] A new energy vehicle air conditioning cooling power structure includes a drive motor and an air conditioning compressor 1. The drive motor is driven by a reducer 2. The reducer 2 is provided with a cooling output shaft. A main pulley 3 is installed on the cooling output shaft. The air conditioning compressor 1 is provided with a compressor input shaft. A driven pulley 4 is installed on the compressor input shaft. The main pulley 3 and the driven pulley 4 are connected by a belt 5. A compressor clutch is installed between the compressor input shaft and the driven pulley 4.

[0019] This invention replaces the electric compressor of the air conditioner in a new energy vehicle with the air conditioner compressor 1 used in a traditional fuel vehicle, and correspondingly modifies the drive method of the compressor in the new energy vehicle's air conditioner, thereby changing the current cooling power structure of the new energy vehicle's air conditioner. In current new energy vehicles, the air conditioner compressor is driven by a motor on an electric compressor, while in this invention, the air conditioner compressor 1 is directly driven by a reducer 2. The reducer 2 is connected to the drive motor, thus enabling the drive motor to drive the air conditioner compressor 1 through the reducer 2. The drive motor described in this invention is mainly used to drive the vehicle.

[0020] Compared to the electric compressors used in current new energy vehicle air conditioners, the air conditioner compressor 1 of this invention does not require an additional electric motor for driving; instead, it is directly driven by a reducer 2 connected to the drive motor. This effectively reduces the overall vehicle cost. The air conditioner compressor 1 of this invention has a simpler structure, saving assembly time and effectively reducing the maintenance costs of the vehicle's air conditioning system. Furthermore, the air conditioner compressor 1 of this invention reduces the cost of high-voltage wiring harness assembly and power distribution systems, and lowers the risks associated with vehicle insulation testing and high-voltage safety.

[0021] When this utility model is in operation, the main pulley 3 on the reducer 2 drives the pulley 4 to rotate through the belt 5, and the compressor clutch can realize the transmission connection and separation between the pulley 4 and the compressor input shaft.

[0022] The compressor clutch is an electromagnetic clutch 8, which is connected to the compressor input shaft and includes a pulley 4.

[0023] The electromagnetic clutch 8 described in this invention is existing technology, and its application on the input shaft of a compressor is a mature technology. The electromagnetic clutch 8 includes an electromagnetic coil, a pressure plate, and a driven pulley 4. The electromagnetic coil is fixed to the compressor housing, and the driven pulley 4 is rotatably mounted on the front end of the air conditioner compressor housing 1 via bearings. When the air conditioner switch is turned on, current flows through the electromagnetic coil, generating electromagnetic attraction that engages the pressure plate with the driven pulley 4, thereby connecting the driven pulley 4 to the compressor input shaft. The torque of the drive motor is then transmitted to the compressor input shaft through the reducer 2, causing the compressor to start operating. When the electromagnetic coil is de-energized, the pressure plate separates from the driven pulley 4, separating the driven pulley 4 from the compressor input shaft, and the compressor stops operating.

[0024] The air conditioning compressor 1 is fixedly mounted on the reducer 2. The reducer 2 has multiple reducer threaded holes 6, and the air conditioning compressor 1 has multiple mounting holes that correspond one-to-one with the reducer threaded holes 6. Bolts 7 are installed between the mounting holes and the corresponding reducer threaded holes 6.

[0025] This utility model designs an air conditioning compressor 1 mounting structure on the reducer 2 in the electric drive system of a new energy vehicle. The air conditioning compressor 1 is directly mounted on the housing of the reducer 2, forming an air conditioning compressor 1 + reducer 2 mounting structure. Thus, the reducer 2 and the air conditioning compressor 1 share a set of shock absorption system, eliminating the need to set up additional brackets and shock absorption devices for the air conditioning compressor 1, simplifying the structure and reducing costs. At the same time, it improves the NVH performance of the whole vehicle, further reducing the overall vehicle cost and saving assembly time.

Claims

1. A new energy vehicle air conditioner refrigeration power structure, characterized in that, The system includes a drive motor and an air conditioning compressor (1). The drive motor is connected to a reducer (2). The reducer (2) is provided with a refrigeration output shaft. A main pulley (3) is installed on the refrigeration output shaft. The air conditioning compressor (1) is provided with a compressor input shaft. A driven pulley (4) is installed on the compressor input shaft. The main pulley (3) and the driven pulley (4) are connected by a belt (5). A compressor clutch is installed between the compressor input shaft and the driven pulley (4).

2. The air conditioning refrigeration power structure for a new energy vehicle according to claim 1, characterized in that, The air conditioning compressor (1) is fixedly installed on the reducer (2).

3. The new energy vehicle air conditioning refrigeration power structure according to claim 2, characterized in that, The reducer (2) has multiple reducer thread holes (6), and the air conditioning compressor (1) has multiple mounting holes that correspond one-to-one with the reducer thread holes (6). The mounting holes and the corresponding reducer thread holes (6) are connected by bolts (7).

4. The new energy vehicle air conditioning refrigeration power structure according to claim 1, characterized in that, The compressor clutch is an electromagnetic clutch (8), which is connected to the compressor input shaft and includes a pulley (4).

Images