CN218343215U

CN218343215U - Driving and parking integrated air conditioning system for motor home

Info

Publication number: CN218343215U
Application number: CN202222467014.7U
Authority: CN
Inventors: 段时康; 万海云
Original assignee: Jiangxi Jiangling Motor Group Recreational Vehicle Co ltd
Current assignee: Jiangxi Jiangling Motor Group Recreational Vehicle Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-01-20
Anticipated expiration: 2032-09-19

Abstract

The application relates to a driving and parking integrated air conditioning system for a motor home, which comprises an electric compressor, a mechanical compressor, a first cold and hot all-in-one machine, a second cold and hot all-in-one machine and a condenser; the mechanical compressor, the first cold and hot all-in-one machine and the condenser are sequentially connected in series; the electric compressor is connected with the mechanical compressor in parallel, and the second cold and hot all-in-one machine is connected with the first cold and hot all-in-one machine in parallel. The utility model discloses can all carry out the temperature regulation and control to driver's area and living area under driving state and parking state to reduce energy consumption and installation space, reduce operating current, promote the refrigerating output.

Description

Driving and parking integrated air conditioning system for motor home

Technical Field

The application relates to the technical field of motor home air conditioners, in particular to a driving and parking integrated air conditioning system for a motor home.

Background

The motor home is a vehicle type which gives consideration to both residence and travel, and an air conditioner is required to be arranged in the motor home for the consideration of comfort. At present, a motor home in the market is provided with a driving air conditioner and a parking air conditioner which are mostly separated and mutually independent. The driving air conditioner is used for adjusting the temperature of a driving area, and the driving air conditioner uses a mechanical compressor and drives the mechanical compressor to work through an engine; the parking air conditioner is used for carrying out temperature regulation for the living area, and the parking air conditioner uses the electric compressor, supplies power for the electric compressor through car as a house power supply. The schematic structural diagrams of the conventional driving air conditioner and parking air conditioner are shown in fig. 1 and 2, respectively. In a driving state, a driving air conditioner and a parking air conditioner need to be turned on simultaneously, so that the function of simultaneously adjusting the temperature in a driving area and a living area can be met; in the parking state, the temperature of the living area is adjusted through the parking air conditioner, and the temperature of the driving area cannot be adjusted because the driving air conditioner cannot be used in the parking state. The existing air conditioner structure of the motor home easily causes the waste of electric energy, and has unstable refrigeration effect, and the refrigeration effect is poor under the driving and parking states.

On the other hand, the parking air conditioners on the market mainly use 12V system air conditioners, 220V air conditioners, and high pressure air conditioners. The 12V system has small air conditioner refrigerating capacity and large working current, the air conditioner wire harness is thick, because the condenser with the electronic fan assembly needs to be vertically installed, but the height under the chassis of the vehicle is limited, the actual installation mode is horizontal or slightly inclined, the heat dissipation effect of the condenser is poor, and the refrigeration performance of the air conditioner is reduced; the 220V air conditioner can work only after an inverter is arranged because the power supply of a common motor home is 12V, so that the energy consumption is high, the size of an external unit of the household air conditioner occupies a large space of the motor home, and the height of the vehicle can be increased by adopting the overhead 220V air conditioner; the high-voltage air conditioner is expensive and needs to be equipped with a high-voltage battery for use, so that the high-voltage air conditioner is difficult to popularize.

Disclosure of Invention

An object of the utility model is to provide a driving and parking integral type air conditioning system for car as a house can all carry out the temperature regulation and control to driver's area and living area under driving state and parking state to reduce energy consumption and installation space, reduce operating current, promote the refrigerating output.

The utility model adopts the technical proposal that: a driving and parking integrated air conditioning system for a motor home comprises an electric compressor, a mechanical compressor, a first cold and hot all-in-one machine, a second cold and hot all-in-one machine and a condenser; the mechanical compressor, the first cold and hot all-in-one machine and the condenser are sequentially connected in series; the electric compressor is connected with the mechanical compressor in parallel, and the second cold and hot all-in-one machine is connected with the first cold and hot all-in-one machine in parallel.

Furthermore, the end of the electric compressor and the end of the mechanical compressor connected with the condenser are respectively provided with a first one-way valve and a second one-way valve.

Furthermore, one end of the first cold and hot all-in-one machine and one end of the second cold and hot all-in-one machine, which are connected with the condenser, are respectively provided with a first thermal expansion valve and a second thermal expansion valve, the connecting ends of the first one-way valve and the second one-way valve and the condenser are provided with first high-low pressure protection sensors, and the connecting ends of the second thermal expansion valve and the condenser are provided with second high-low pressure protection sensors.

Further, the operating voltage of the electric compressor is 48V.

Further, the first cold and hot all-in-one machine and the second cold and hot all-in-one machine are identical in structure and respectively comprise an air blower, an evaporator and a warm air core body which are sequentially connected along the air flowing direction; and a heat dissipation water tank connected with the electronic fan is arranged in the condenser.

The beneficial effects of the utility model reside in that:

(1) The utility model discloses parallelly connected with mechanical compressor and first cold and hot all-in-one respectively with electric compressor and second cold and hot all-in-one, electric compressor and mechanical compressor share one set of condenser, save electric energy and cost, reduce installation space simultaneously to saved chassis space; in a driving state, a mechanical compressor drives a first cold and hot all-in-one machine and a second cold and hot all-in-one machine to work, and temperature regulation is carried out on a driving area and a living area; in the parking state, the first cold-hot all-in-one machine and the second cold-hot all-in-one machine are driven by the electric compressor to work, and the temperature of a driving area and a living area is adjusted;

(2) Compared with a 12V electric compressor, the utility model has the advantages that the refrigeration capacity of the 48V electric compressor is 2200W, the refrigeration capacity of the 48V electric compressor is 2600W, the working current of the 48V electric compressor is small, and the wire diameter can be reduced; compared with a 220V electric compressor, the 48V electric compressor does not need to be matched with an inverter for use; compared with a high-voltage system, the 48V power supply system is economical and practical and is widely applied in the market, so that the 48V electric compressor has better adaptability to the existing motor homes in the market and is convenient to popularize;

(3) The utility model avoids the formation of a small refrigerant circulation between the electric compressor and the mechanical compressor by arranging the check valve, and avoids the damage of the electric compressor and the mechanical compressor; and carry out throttle step-down and pressure detection respectively through thermal expansion valve and high-low pressure protection sensor, guarantee the utility model discloses normally function protects motor compressor and mechanical compressor when pressure is unusual.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a conventional driving air conditioner;

FIG. 2 is a schematic structural diagram of a parking air conditioner;

fig. 3 is a schematic structural diagram of an embodiment of the present invention.

The reference signs explain: the method comprises the following steps of 1-electric compressor, 2-mechanical compressor, 3-first cooling and heating integrated machine, 4-second cooling and heating integrated machine, 5-condenser, 6-first one-way valve, 7-second one-way valve, 8-first thermal expansion valve, 9-second thermal expansion valve, 10-first high-low pressure protection sensor, 11-second high-low pressure protection sensor, 12-air blower, 13-evaporator, 14-warm air core body, 15-electronic fan and 16-heat dissipation water tank.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the present invention is not limited to the specific embodiments disclosed below.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this patent application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

As shown in fig. 3, the driving and parking integrated air conditioning system for the motor home comprises an electric compressor 1, a mechanical compressor 2, a first cooling and heating all-in-one machine 3, a second cooling and heating all-in-one machine 4 and a condenser 5. The electric compressor 1 is used for compressing gaseous low-temperature and low-pressure refrigerants at the first cold-hot all-in-one machine 3 and the second cold-hot all-in-one machine 4 into a high-temperature and high-pressure state in a parking state; the mechanical compressor 2 is used for compressing gaseous low-temperature and low-pressure refrigerants at the first cooling-heating integrated machine 3 and the second cooling-heating integrated machine 4 into a high-temperature and high-pressure state in a driving state. The condenser 5 is used to cool the gaseous high-temperature high-pressure refrigerant in the electric compressor 1 or the mechanical compressor 2 to a liquid state of normal temperature and high pressure. The first cold and hot all-in-one machine 3 and the second cold and hot all-in-one machine 4 are respectively used for carrying out temperature regulation in a driving area and a living area, converting a liquid normal-temperature high-pressure refrigerant at the condenser 5 into a gaseous low-temperature low-pressure state, and outputting cold air for refrigeration; the cold air can also be heated in the first cold and hot all-in-one machine 3 and the second cold and hot all-in-one machine 4, so that the hot air is output to heat.

The mechanical compressor 2, the first cold and hot integrated machine 3 and the condenser 5 are sequentially connected in series. The electric compressor 1 is connected with the mechanical compressor 2 in parallel, and the second cold and hot all-in-one machine 4 is connected with the first cold and hot all-in-one machine 3 in parallel. Preferably, the working voltage of the electric compressor 1 is consistent with the voltage of the power supply of the motor home, and at the moment, a voltage conversion device is not needed to be additionally arranged to enable the working voltage of the electric compressor 1 to be matched with the voltage of the power supply of the motor home, so that the cost and the energy consumption are prevented from being increased.

The embodiment of the utility model provides a theory of operation does: the first cold and hot all-in-one machine 3 is arranged in a driving area, and the second cold and hot all-in-one machine 4 is arranged in a living area. Under the driving state, drive mechanical compressor 2 through the engine, first cold and hot all-in-one 3 and second cold and hot all-in-one 4 are respectively to driving area and living area air supply, carry out temperature regulation, and electric compressor 1 is in the off-state this moment, reduces car as a house power supply's power consumption. In the parking state, the motor compressor 1 is driven through a power supply of the motor home, the first cold and hot all-in-one machine 3 and the second cold and hot all-in-one machine 4 supply air to a driving area and a living area respectively to adjust the temperature, and the mechanical compressor 2 is in a closed state at the moment.

Compared with the prior art, the embodiment of the utility model provides a connect electric compressor 1 and second cold and hot all-in-one 4 with mechanical compressor 2 and first cold and hot all-in-one 3 respectively in parallel, one set of condenser 5 of electric compressor 1 and mechanical compressor 2 sharing saves electric energy and cost, reduces installation space simultaneously to the chassis space has been saved. No matter in driving state and parking state, the work of first cold and hot all-in-one 3 and second cold and hot all-in-one 4 all can carry out temperature regulation to driver's area and living area, has overcome prior art under driving state and parking state, and the refrigeration effect is unstable defect.

In the embodiment of the present invention, the ends of the electric compressor 1 and the mechanical compressor 2 connected to the condenser 5 are respectively provided with the first check valve 6 and the second check valve 7. The first check valve 6 and the second check valve 7 are used for limiting the flow direction of the refrigerant, so that the refrigerant can only flow to the condenser 5 from the electric compressor 1 or the mechanical compressor 2, thereby avoiding the refrigerant from forming a small circulation between the electric compressor 1 and the mechanical compressor 2 and preventing damage to the electric compressor 1 and the mechanical compressor 2.

The first cold and hot all-in-one machine 3 and the second cold and hot all-in-one machine 4 are provided with first thermal expansion valve 8 and second thermal expansion valve 9 respectively with the one end that condenser 5 is connected, the link of first check valve 6 and second check valve 7 and condenser 5 is provided with first high-low pressure protection sensor 10, the link of second thermal expansion valve 9 and condenser 5 is provided with second high-low pressure protection sensor 11. When the liquid normal-temperature high-pressure refrigerant flows through the first thermostatic expansion valve 8 and the second thermostatic expansion valve 9, the refrigerant can be throttled and decompressed, the refrigerant is converted into a low-temperature low-pressure state, and a small amount of steam is generated. The first and second high and low

pressure protection sensors

10 and 11 are used to detect the pressure of the refrigerant in the pipe, and the electric compressor 1 and the mechanical compressor 2 are turned off when the pressure in the pipe is too high or too low.

Preferably, the operating voltage of the electric compressor 1 is 48V. Compared with the 12V electric compressor 1, the refrigerating capacity is 2200W, the refrigerating capacity of the 48V electric compressor 1 is 2600W, the working current of the 48V electric compressor 1 is small, and the wire diameter can be reduced; compared with the 220V electric compressor 1, the 48V electric compressor 1 does not need to be matched with an inverter for use; compared with a high-voltage system, the 48V power supply system is economical and practical and is widely applied to the market, so that the 48V electric compressor 1 has good adaptability to the existing motor homes in the market and is convenient to popularize.

The first cold and hot integrated machine 3 and the second cold and hot integrated machine 4 used in the embodiment of the utility model have the same structure and respectively comprise an air blower 12, an evaporator 13 and a warm air core 14 which are sequentially connected along the air flowing direction; a heat radiation water tank 16 connected with an electronic fan 15 is arranged in the condenser 5. The gaseous high-temperature high-pressure refrigerant is cooled by the electronic fan 15 in the condenser 5, liquefied into a liquid state at normal temperature and high pressure, and stored in the cooling water tank 16. After the liquid normal-temperature high-pressure refrigerant reaches the evaporators 13 in the first cooling-heating all-in-one machine 3 and the second cooling-heating all-in-one machine 4, the pressure of the refrigerant is reduced due to sudden increase of the space, the liquid refrigerant is vaporized, and absorbs a large amount of heat during vaporization, so that the evaporators 13 are cooled, the air blower 12 behind the evaporators 13 blows air from the evaporators 13, and at the moment, if a heating mode is not started, the warm air core 14 does not work, and the blown air is cold air; when the heating mode is turned on, the heater core 14 operates, and the blower blows air through the heater core 14, and the air is hot air.

The embodiment of the utility model shares the electric compressor 1 and the mechanical compressor 2 with a set of condenser 5, thus saving the components of the air conditioner of the motor home, not only reducing the cost, but also saving the installation space; meanwhile, the driving area and the living area can be subjected to temperature regulation in the driving state and the parking state, the application efficiency of the mechanical compressor 2 is improved, the energy consumption of the electric compressor 1 is reduced, and stable refrigeration and heating measures are provided.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The driving and parking integrated air conditioning system for the motor home is characterized by comprising an electric compressor, a mechanical compressor, a first cold and hot integrated machine, a second cold and hot integrated machine and a condenser, wherein the electric compressor is connected with the mechanical compressor; the mechanical compressor, the first cold and hot all-in-one machine and the condenser are sequentially connected in series; the electric compressor is connected with the mechanical compressor in parallel, and the second cooling and heating all-in-one machine is connected with the first cooling and heating all-in-one machine in parallel.

2. The air conditioning system as claimed in claim 1, wherein the motor-driven compressor and the mechanical compressor are provided with a first check valve and a second check valve at their ends connected to the condenser, respectively.

3. The air conditioning system as claimed in claim 2, wherein the first and second cold and hot all-in-one machines and the condenser are connected to one end of the first and second cold and hot all-in-one machines and the condenser respectively, the first and second check valves and the condenser are connected to one end of the first and second check valves respectively, and a first high-low pressure protection sensor is arranged at the end of the first and second check valves connected to the condenser, and a second high-low pressure protection sensor is arranged at the end of the second heat expansion valve connected to the condenser.

4. The air conditioning system as claimed in claim 1, wherein the operating voltage of the electric compressor is 48V.

5. The traveling and parking integrated air conditioning system for the motor home as claimed in claim 1, wherein the first cooling and heating integrated machine and the second cooling and heating integrated machine are identical in structure and each comprise a blower, an evaporator and a warm air core body which are sequentially connected along the air flowing direction; and a heat dissipation water tank connected with the electronic fan is arranged in the condenser.