Vehicle

Abstract

The utility model provides a vehicle. The vehicle comprises a cab, a cargo compartment, a refrigerating device, a fan and a first air door. The refrigerating device is used for refrigerating the space in the cargo compartment. The cab is communicated with the cargo compartment through a channel, and the channel is provided with an opening communicated with the external space so that air in the external space can enter the channel. When the first air door is closed, the cab and the cargo compartment are disconnected; after the fan is started, the first air door is opened, and cold air in the cargo compartment and air in the external space enter the cab through the channel. The cooling capacity of the cargo compartment refrigerates the cab, and the energy consumption of the whole vehicle is low; the refrigerating device only refrigerates the space of the cargo compartment, the refrigerating device is easy to control, and the cost of the whole vehicle is reduced; air in the outside space and cold air in the cargo compartment enter the cab, the temperature of the air entering the cab can be effectively controlled, and the temperature of the air entering the cab is appropriate.

Description

Technical Field

[0001] The present application relates to the fields of automobile engineering and refrigeration technology, and in particular to a vehicle. Background Art

[0002] As people's living standards continue to improve, the requirements for freight transportation are also gradually increasing. A variety of refrigerated trucks for transporting goods that require low temperatures or constant temperatures have appeared on the market. Refrigerated trucks include fresh food refrigerated trucks, frozen food refrigerated trucks, pharmaceutical refrigerated trucks, biological product refrigerated trucks, and chemical refrigerated trucks. Most existing refrigerated trucks use two independent air-conditioning systems, which has a high cost for the entire vehicle, or use a dual evaporator system that cools both the cab and the cargo compartment. However, the existing solution will result in a high cost for the refrigerated truck, and the dual evaporator system is difficult to control and has high energy consumption. Utility Model Content

[0003] The present application provides a vehicle that can reduce the cost of the entire vehicle and reduce energy consumption.

[0004] A vehicle comprises: a cab, a cargo compartment, a refrigeration device, a fan and a first damper, wherein the refrigeration device is used to cool the space in the cargo compartment, the cab and the cargo compartment are connected by a passage, the passage is provided with an opening connected to the outside space, so that air from the outside space can enter the passage, when the first damper is closed, the cab and the cargo compartment are disconnected, after the fan is started, the first damper is opened, and the cold air in the cargo compartment and the air from the outside space enter the cab through the passage.

[0005] Further, the cargo compartment includes a first side wall, the cab includes a second side wall arranged opposite to the first side wall, the passage is located between the first side wall and the second side wall, the first damper is rotatably fixed on the first side wall, and the fan is fixed on the second side wall.

[0006] Furthermore, when the first damper is opened, it rotates in the direction of the opening.

[0007] Furthermore, the vehicle is provided with a connecting member, the connecting member is connected to the first side wall and the second side wall, the first damper is arranged opposite to the connecting member when the first damper is fully opened, and the channel is located between the first damper and the connecting member.

[0008] Furthermore, the vehicle is provided with a connecting piece, the connecting piece is connected to the first side wall and the second side wall, and the connecting piece encloses the channel.

[0009] Furthermore, the opening is arranged on one of the side walls of the connecting member.

[0010] Furthermore, it also includes: a damper control device for controlling the rotation angle of the first damper.

[0011] Furthermore, it also includes: a return air channel, the return air channel connecting the cargo compartment and the cab (1), the channel and the return air channel forming an air circulation flow channel.

[0012] Furthermore, it also includes: a return air damper, when the return air damper is opened, the air in the cab can enter the cargo compartment through the return air duct, and when the return air damper is closed, the air in the cab is prevented from entering the cargo compartment through the return air duct.

[0013] Furthermore, the refrigeration device includes a condenser, a compressor and an evaporator connected together, and the evaporator includes: a first evaporator, a second evaporator and a third evaporator connected in series in sequence, the first evaporator, the second evaporator and the third evaporator are arranged on the inner walls on different sides of the cargo compartment, the first evaporator is connected to the condenser, and the third evaporator is connected to the compressor.

[0014] In some embodiments, the cooling capacity of the cargo compartment of the above technical solution is used for cooling the cab, and the energy consumption of the entire vehicle is low; the refrigeration device only cools the space in the cargo compartment, and the refrigeration device is simple to control, which reduces the cost of the entire vehicle; the air from the outside space and the cold air in the cargo compartment enter the cab, which can effectively control the wind temperature entering the cab, so that the air temperature entering the cab is appropriate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the layout of a vehicle according to an exemplary embodiment of the present application.

[0016] Figure 2 yes Figure 1 The schematic diagram of the layout of the refrigeration unit is shown.

[0017] Explanation of the accompanying drawings: 1. Cab; 11. Second side wall; 2. Cargo compartment; 21. First side wall; 3. Refrigeration device; 31. Condenser; 32. Compressor; 33. Evaporator; 331. First evaporator; 332. Second evaporator; 333. Third evaporator; 34. Condensing fan; 35. Expansion valve; 4. Passage; 41. First hole; 5. Fan; 6. Connecting plate; 7. First damper; 8. Return air passage; 81. Second hole; 9. Return air damper; 10. Opening. DETAILED DESCRIPTION

[0018] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0019] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0020] See also Figure 1 As shown, the vehicle includes: a cab 1, a cargo compartment 2, a refrigeration device 3, a fan 5 and a first damper 7. The refrigeration device 3 is used to cool the space in the cargo compartment 2. The cab 1 and the cargo compartment 2 are connected through a channel 4. The channel 4 is provided with an opening 10 connected to the outside space, so that air from the outside space can enter the channel 4. When the first damper 7 is opened, the fan 5 sucks the cold air in the cargo compartment 2 and the air from the outside space into the cab 1 through the channel 4; when the first damper 7 is closed, the internal spaces of the cargo compartment 2 and the cab 1 are separated from each other, and the cargo compartment 2 and the internal spaces of the cab 1 are not connected.

[0021] The air from the outside space and the cold air in the cargo compartment enter the cab 1, which can effectively control the wind temperature entering the cab 1 and make the air temperature entering the cab 1 appropriate.

[0022] In some embodiments, when the first damper 7 is opened, the air in the outside space and the cold air in the cargo compartment 2 both enter the passage 4 and are mixed in the passage 4, and then enter the cab 1. In addition, in some embodiments, when the first damper 7 is opened, the air in the outside space enters the cab 1 through the passage 4, and the cold air in the cargo compartment 2 also enters the cab 1 through the passage 4, and the air in the outside space and the cold air in the cargo compartment 2 are mixed in the cab 1. The cold air in the cargo compartment 2 and the air in the outside space are mixed, so that the temperature of the gas entering the cab 1 is suitable, and the driver's body temperature is more suitable.

[0023] See also Figure 2 As shown, the cargo compartment 2 includes a first side wall 21, the cab 1 includes a second side wall 11 arranged opposite to the first side wall 21, the passage 4 is arranged between the first side wall 21 and the second side wall 11, the first damper 7 is rotatably fixed on the first side wall 21, and the fan 5 is arranged on the second side wall 11. When the first damper 7 is closed, the fan 5 can also introduce air from the outside space to exchange air for the internal space of the cab 1, so as to ensure that the air in the cab 1 is fresh.

[0024] When the first damper 7 is opened, it can rotate toward the opening 10, and one end of the first damper 7 is rotatably connected to the first side wall 21. The rotating first damper 7 can distribute the air flow more evenly, and the air from the cold air and the outside space can enter more smoothly, ensuring that the temperature in the cargo compartment and the cab of the vehicle is more uniform.

[0025] In some embodiments, the first damper 7 can be connected to the first side wall 21 by hinge connection or bearing connection. In addition, the first damper 7 can also be in the form of a valve to control the flow of cold air in the cargo compartment 2 into the passage 4.

[0026] A first hole 41 is provided on the first side wall 21 , and the cold air in the cargo compartment 2 enters the passage 4 through the first hole 41 . The first damper 7 rotates to block or open the first hole 41 .

[0027] In some embodiments, the first damper 7 may be a sliding door, and moves perpendicular to the vehicle's travel direction to block or open the first hole 41 .

[0028] The vehicle is provided with a connecting piece, both ends of which are respectively connected to the first side wall 21 and the second side wall 11. When the first damper 7 is fully opened, the first damper 7 and the connecting piece are arranged opposite to each other, and the channel 4 is located between the first damper 7 and the connecting piece.

[0029] In some embodiments, the connector may be a plate-shaped connector, such as Figure 2As shown, the connecting member is a connecting plate 6. When the first damper 7 is fully opened, the first damper 7 is parallel to the connecting plate 6. In addition, the connecting member can also be made of a retractable flexible material such as plastic, nylon cloth or PVC pipe.

[0030] In some embodiments, the connector includes: a plurality of side walls, the number of which is less than or equal to four. When the number of side walls is one, the connector can be any side wall above, below, on the left and right sides of the channel 4 along the height direction of the vehicle; when the number of side walls is two, the connector can be two side walls parallel to each other up and down or two side walls parallel to each other left and right, or an L-shaped side wall in which the top or bottom is combined with the left or right sides; when the number of side walls is three, the connector can be a U-shaped side wall in which any three of the top, bottom, left and right sides are combined; when the number of side walls is four, the connector can be combined to form the channel 4. The opening 10 can be provided at a position where the connector is not provided with a side wall, or it can be provided on one of the side walls of the connector.

[0031] In this embodiment, the opening 10 is provided on the side wall of the connecting member located above the passage 4. In some embodiments, along the height direction of the vehicle, the opening 10 is provided on the side wall of the connecting member located below the passage 4. In addition, along the width direction of the vehicle, the opening 10 may also be provided on the side wall of the connecting member located on the left or right side of the passage 4.

[0032] The vehicle further includes: a fan control device for controlling the start and stop of the fan 5. The fan control device may be arranged in the cab 1. In some embodiments, the fan control device may also adjust the air volume of the fan 5, thereby controlling the amount of cold air introduced into the cargo compartment 2 and the air from the outside space.

[0033] The vehicle also includes: a temperature detection device, which is coupled to a fan control device. The fan control device controls the start and stop of the fan 5 according to the temperature information detected by the temperature detection device, and can also control the air volume of the fan 5 to achieve intelligent temperature control.

[0034] The vehicle further includes: a damper control device to control the rotation angle of the first damper 7. The damper control device may be arranged in the cab. When the driver feels a high or low body temperature, the damper control device may be operated to control the opening of the first damper 7, thereby controlling the flow rate of the cold air in the cargo compartment 2 into the passage 4, thereby achieving the purpose of controlling the air temperature entering the cab 1.

[0035] The vehicle further includes: a return air passage 8, the return air passage 8 connects the cargo compartment 2 and the cab 1, the passage 4 and the return air passage 8 form an air circulation passage, and the return air passage 8 is parallel to the passage 4, see Figure 2, along the height direction of the vehicle, the return air duct 8 is arranged below the duct 4. In some embodiments, along the height direction of the vehicle, the return air duct 8 may also be arranged above the duct 4, and in addition, along the width direction of the vehicle, the return air duct 8 may also be arranged on the left or right side of the duct 4.

[0036] The vehicle further includes: a return air damper 9. When the return air damper 9 is opened, the air in the cab 1 can enter the cargo compartment 2 via the return air duct 8. When the return air damper 9 is closed, the air in the cab 1 is prevented from entering the cargo compartment 2 via the return air duct 8.

[0037] A second hole 81 is further provided on the first side wall 21 . The air in the cab 1 enters the return air passage 8 and then enters the cargo compartment 2 through the second hole 81 . The return air damper 9 rotates to block or open the second hole 81 .

[0038] One end of the return air damper 9 is rotatably connected to the first side wall 21, and the other end of the return air damper 9 is close to or away from the first side wall 21 to open or block the second hole 81. In addition, in some embodiments, the return air damper 9 can be a sliding door, which moves perpendicular to the driving direction of the vehicle to open or block the second hole 81.

[0039] In this embodiment, the return air damper 9 is arranged on the first side wall 21 and rotates toward the cargo compartment 2. The air in the cab 1 enters the return air passage 8 and can directly blow open the return air damper 9, and then the air enters the cargo compartment 2. The rotatable return air damper 9 adopts an energy-saving design, and directly uses the return air in the cab 1 to blow open the return air damper 9, thereby reducing energy consumption and lowering operating costs.

[0040] In some embodiments, the return air damper 9 may not be provided. When the fan 5 is turned on, the cold air enters the passage 4 from the cargo compartment 2, and the air from the outside space enters the passage 4 from the opening 10. After the air is mixed, it passes through the fan 5 and enters the cab 1. Then, under the action of atmospheric pressure, the air in the cab 1 returns to the cargo compartment 2 from the cab 1 through the return air passage 8. When the fan 5 is turned off, the cab 1 and the cargo compartment 2 are both in a closed state, and the volumes of the cab 1 and the cargo compartment 2 are fixed. There is no gas flow in the cab 1 and the cargo compartment 2, and no gas exchange is performed in the cab 1 and the cargo compartment. At this time, the cold air in the cargo compartment 2 will not enter the cab 1 from the passage 4 and the return air passage 8, and the cold loss in the cargo compartment 2 can be ignored.

[0041] See also Figure 2As shown, the refrigeration device 3 includes a condenser 31, a compressor 32 and an evaporator 33 connected together. The evaporator 33 includes: a first evaporator 331, a second evaporator 332 and a third evaporator 333 connected in series in sequence. The first evaporator 331, the second evaporator 332 and the third evaporator 333 are arranged on the inner walls on different sides of the cargo compartment 2. The first evaporator 331 is connected to the condenser 31, and the third evaporator 333 is connected to the compressor 32.

[0042] The first evaporator 331, the second evaporator 332 and the third evaporator 333 are provided on different side walls of the cargo compartment 2 to improve the refrigeration efficiency of the cargo compartment 2. In some embodiments, only one evaporator 33 or a plurality of evaporators 33 connected in series can be provided to refrigerate the cargo compartment 2.

[0043] See also Figure 1 and Figure 2 As shown, a condensing fan 34 is also provided on the condenser 31, and the condensing fan 34 is used to dissipate heat from the condenser 31. The condenser 31, the condensing fan 34 and the compressor 32 are all arranged above the cargo compartment 2 and outside the cargo compartment 2 to prevent the condenser 31 and the compressor 32 from generating heat and affecting the cooling efficiency of the cargo compartment 2.

[0044] In some embodiments, the condenser 31, the compressor 32 and the condensing fan 34 may also be arranged in the cargo compartment 2. In order to prevent the condenser 31 and the compressor 32 from generating heat and affecting the cooling efficiency of the cargo compartment 2, the internal space of the cargo compartment 2 may be divided in the cargo compartment 2, and the space for placing the condenser 31 and the compressor 32 may be separated from the space for placing the cargo.

[0045] See also Figure 2 The refrigeration device 3 further includes: an expansion valve 35 , which is disposed in the cargo compartment 2 , and between the condenser 31 and the first evaporator 331 .

[0046] like Figure 2The compressor 32 compresses the refrigerant, sucks in the low-pressure refrigerant, and compresses it into a high-temperature and high-pressure gas. The high-temperature and high-pressure refrigerant flows into the condenser 31 through the pipeline. In the condenser 31, the refrigerant dissipates heat. By exchanging heat with the surrounding environment, the gas is cooled and condensed into a high-pressure liquid. At this time, the condensing fan 34 needs to be turned on to dissipate heat for the condenser 31. Then the refrigerant flows to the expansion valve 35. When the high-pressure liquid refrigerant passes through the expansion valve 35, its pressure will drop suddenly, causing part of the refrigerant to evaporate, thereby lowering its temperature and converting the high-temperature and high-pressure liquid refrigerant into a low-temperature and low-pressure liquid refrigerant. In the evaporator 33, the process of the refrigerant changing from liquid to gas requires absorbing a large amount of heat, which reduces the temperature of the external medium of the evaporator 33. At the same time, the refrigerant in the evaporator 33 is vaporized and cooled, so that the temperature of the cargo compartment 2 reaches a preset temperature. The vaporized refrigerant forms low-pressure and low-temperature steam in the evaporator 33, and then flows back to the compressor 32. When flowing to the compressor 32, the refrigerant at this time is a low-temperature and low-pressure gas. The refrigerant needs to enter the compressor 32 again to be compressed by the compressor 32 to form a high-temperature and high-pressure gas, thereby completing the cycle in the refrigeration device 3.

[0047] The above is only a preferred implementation mode of the present application, and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred implementation mode as above, it is not used to limit the present application. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent implementation modes without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above implementation modes based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A vehicle, characterized in that: include: A cab, a cargo compartment, a refrigeration device, a fan and a first damper, wherein the refrigeration device is used to cool the space in the cargo compartment, the cab and the cargo compartment are connected by a passage, and the passage is provided with an opening connected to the outside space to allow air from the outside space to enter the passage, and when the first damper is closed, the cab and the cargo compartment are disconnected, and after the fan is started, the first damper is opened, and the cold air in the cargo compartment and the air from the outside space enter the cab through the passage.

2. The vehicle according to claim 1, characterized in that The cargo compartment includes a first side wall, the cab includes a second side wall arranged opposite to the first side wall, the passage is located between the first side wall and the second side wall, the first damper is rotatably fixed on the first side wall, and the fan is fixed on the second side wall.

3. The vehicle according to claim 2, characterized in that When the first damper is opened, it rotates toward the opening.

4. The vehicle according to claim 3, characterized in that The vehicle is provided with a connecting member, the connecting member is connected to the first side wall and the second side wall, the first damper is arranged opposite to the connecting member when fully opened, and the channel is located between the first damper and the connecting member.

5. The vehicle according to claim 3, characterized in that The vehicle is provided with a connecting piece, the connecting piece is connected to the first side wall and the second side wall, and the connecting piece encloses the channel.

6. The vehicle according to claim 5, characterized in that The opening is arranged on one of the side walls of the connecting member.

7. The vehicle according to claim 1, characterized in that Also includes: A damper control device is used to control the rotation angle of the first damper.

8. The vehicle according to claim 1, characterized in that Also includes: A return air channel connects the cargo compartment and the cab, and the channel and the return air channel form an air circulation flow channel.

9. The vehicle according to claim 8, characterized in that Also includes: A return air damper, when the return air damper is opened, the air in the cab can enter the cargo compartment through the return air duct, and when the return air damper is closed, the air in the cab is prevented from entering the cargo compartment through the return air duct.

10. The vehicle according to any one of claims 1 to 9, characterized in that The refrigeration device includes a condenser, a compressor and an evaporator connected together, and the evaporator includes: a first evaporator, a second evaporator and a third evaporator connected in series in sequence, the first evaporator, the second evaporator and the third evaporator are arranged on the inner walls on different sides of the cargo compartment, the first evaporator is connected to the condenser, and the third evaporator is connected to the compressor.

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