Refrigerator for mobile tool and mobile tool

Abstract

The present application relates to the technical field of refrigerators, and in particular to a refrigerator for a mobile tool and a mobile tool. The refrigerator for a mobile tool is arranged on the mobile tool, and the mobile tool has an air-conditioning assembly; the refrigerator for the mobile tool includes a box body, the box body has a accommodating cavity and a connecting port connected to the accommodating cavity, the box body is connected to a cold source output by the air-conditioning assembly through the connecting port, and the refrigerator for the mobile tool does not discharge heat into the mobile tool, thereby effectively reducing the energy consumption of the mobile tool.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a refrigerator for mobile tools and a mobile tool. Background Art

[0002] As people's living standards continue to improve, their demand for quality travel is also increasing. For heavy-duty truck drivers in particular, delivering goods for several consecutive days is commonplace. In the scorching summer heat, drivers not only need air conditioning to cool down, but also need a refreshing drink. Most car refrigerators on the market today still use independent compressor evaporative cooling. This type of cooling method consumes more energy when used in vehicles, and the hot air discharged from these refrigerators returns to the vehicle cabin, affecting the interior temperature. Summary of the Invention

[0003] The purpose of the present application is to provide a refrigerator for a mobile tool and a mobile tool, wherein the refrigerator for a mobile tool does not discharge heat into the mobile tool, thereby effectively reducing the energy consumption of the mobile tool.

[0004] To this end, in the first aspect, an embodiment of the present application provides a refrigerator for a mobile tool, which is arranged on the mobile tool, and the mobile tool has an air-conditioning assembly; the refrigerator for the mobile tool includes a box body, the box body has a accommodating cavity and a connecting port connected to the accommodating cavity, and the box body is connected to the cold source output by the air-conditioning assembly through the connecting port.

[0005] In one possible implementation, the cold source output by the air-conditioning assembly is cold air; the connection port includes an air inlet for introducing the cold air output by the air-conditioning assembly, and the box body also includes an air outlet; wherein, the cold air blown into the air inlet circulates in the accommodating cavity and then blown out from the air outlet.

[0006] In one possible implementation, the air-conditioning assembly includes a driving air-conditioning assembly and a parking air-conditioning assembly, and a damper is provided at the air inlet for controlling the closing of the air inlet and connecting the cold air output by the driving air-conditioning assembly or the cold air output by the parking air-conditioning assembly.

[0007] In one possible implementation, the cold source output by the air-conditioning assembly is a refrigerant; the refrigerator for mobile tools further includes a heat exchange component, which is connected to the refrigerant output by the air-conditioning assembly through a connecting port.

[0008] In one possible implementation, the heat exchange assembly includes a heat exchanger, a core and a water pump. The heat exchanger has a first passage and a second passage. The first passage is used for the circulation of refrigerant. The core is arranged in the accommodating cavity of the box body. The core and the second passage of the heat exchanger form an antifreeze circulation loop through the water pump.

[0009] In one possible implementation, the heat exchange component also includes an expansion water tank, which has an inlet pipe and an outlet pipe. The inlet pipe and the outlet are respectively provided with a first expansion valve and a second expansion valve. The expansion water tank is connected to the antifreeze circulation loop through the inlet pipe and the outlet pipe.

[0010] In a possible implementation, the refrigerator for mobile tools further includes a circulation fan, which is disposed on the box body and is used to drive the air in the accommodating cavity to circulate.

[0011] In one possible implementation, the air conditioning assembly includes a driving air conditioning assembly and a parking air conditioning assembly, and the first passage of the heat exchanger exchanges heat with the refrigerant output by the driving air conditioning assembly or the refrigerant output by the parking air conditioning assembly.

[0012] In one possible implementation, an inlet is provided at one end of the first passage of the heat exchanger, and an outlet is provided at the other end; the inlet is used to input the refrigerant output by the driving air-conditioning assembly, and the outlet is used to output the refrigerant after heat exchange to the driving air-conditioning assembly; or, the inlet is used to input the refrigerant output by the parking air-conditioning assembly, and the outlet is used to output the refrigerant after heat exchange to the parking air-conditioning assembly.

[0013] In a second aspect, an embodiment of the present application provides a mobile tool, comprising: an air-conditioning assembly; and a refrigerator for the mobile tool as described above, wherein a connection port of the refrigerator for the mobile tool is connected to a cold source output by the air-conditioning assembly.

[0014] According to the refrigerator for mobile tools and the mobile tool provided in the embodiments of the present application, the refrigerator for mobile tools utilizes the cold source output by the air-conditioning assembly on the mobile tool, and uses the cold source for cooling the interior of the box. It does not generate additional heat and does not discharge heat into the mobile tool, thereby effectively reducing the energy consumption of the mobile tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In addition, in the drawings, the same reference numerals are used for the same components, and the drawings are not drawn according to the actual scale.

[0016] Figure 1 A schematic diagram showing the three-dimensional structure of a refrigerator for mobile tools provided in an embodiment of the present application is shown;

[0017] Figure 2 A schematic cross-sectional structure diagram of a box provided in an embodiment of the present application is shown;

[0018] Figure 3 A schematic structural diagram showing a connection between a box and cold air output by an air conditioning assembly provided in an embodiment of the present application is shown;

[0019] Figure 4 A schematic diagram showing the structure of the connection between an air conditioning assembly and a refrigerator in a mobile tool provided by an embodiment of the present application is shown;

[0020] Figure 5 Show Figure 4 Schematic diagram of the structure connecting the refrigerant output of the central air conditioning assembly and the heat exchange component.

[0021] Description of reference numerals:

[0022] 1. Box body; 11. Air inlet; 12. Air outlet; 13. Air damper; 14. Drain outlet;

[0023] 2. Heat exchange assembly; 21. Heat exchanger; 211. Inlet; 212. Outlet; 22. Core; 23. Water pump; 24. Expansion tank; 25. First expansion valve; 26. Second expansion valve;

[0024] 3. Circulation fan;

[0025] 4. Air conditioning assembly; 41. Driving air conditioning assembly; 411. First compressor; 412. First condenser; 413. First throttling short pipe; 414. First evaporator; 42. Parking air conditioning assembly; 421. Second compressor; 422. Second condenser; 423. Second throttling short pipe; 424. Second evaporator; 43. First three-way valve; 44. Second three-way valve; 45. Third three-way valve; 46. Fourth three-way valve. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] In the existing technology, most car refrigerators still use independent compressor evaporative refrigeration. When refrigerators with this refrigeration method are used in cars, they consume more energy for the car, and the hot air discharged by refrigerators with this refrigeration method returns to the car compartment, affecting the temperature inside the car.

[0028] Figure 1 A schematic diagram showing the three-dimensional structure of a refrigerator for mobile tools provided in an embodiment of the present application is shown; Figure 2A schematic cross-sectional structure diagram of a box provided in an embodiment of the present application is shown; Figure 3 A structural schematic diagram showing the connection between a box body and the cold air output by an air conditioning assembly provided in an embodiment of the present application is shown.

[0029] like Figures 1 to 3 As shown, an embodiment of the present application provides a refrigerator for a mobile tool, which is arranged on the mobile tool, and the mobile tool has an air-conditioning assembly 4; the refrigerator for the mobile tool includes a cabinet 1, the cabinet 1 has a accommodating cavity and a connecting port connected to the accommodating cavity, and the cabinet 1 is connected to the cold source output by the air-conditioning assembly 4 through the connecting port.

[0030] In this application, by utilizing the cold source output by the air-conditioning assembly 4 on the mobile tool, the cold source is used to cool the inside of the box 1, no additional heat is generated, and no heat is discharged into the mobile tool, thereby effectively reducing the energy consumption of the mobile tool.

[0031] Among them, mobile tools can be all equipment with mobility capabilities, including vehicles with passenger functions (such as cars, buses, large buses, minibuses, etc.), vehicles with cargo functions (such as ordinary trucks, vans, trailers, closed trucks, tank trucks, flatbed trucks, container trucks, dump trucks, special structure trucks), special vehicles (such as logistics distribution vehicles, automatic guided transport vehicles AGV, patrol cars, cranes, cranes, excavators, bulldozers, forklifts, rollers, loaders, off-road engineering vehicles, armored engineering vehicles, sewage treatment vehicles, sanitation vehicles, vacuum trucks, floor washing vehicles, sprinkler trucks, etc.), vehicles with entertainment functions (such as entertainment vehicles, amusement park automatic driving devices, balance cars, etc.), rescue vehicles (such as fire trucks, ambulances, power repair vehicles, engineering rescue vehicles, etc.), etc. Specifically, the mobile tool in this application is a heavy truck, and the heavy truck driver often transports goods for many consecutive days. In hot weather, the vehicle-mounted air-conditioning assembly 4 is needed to cool the cabin. The existing technology requires a separate vehicle-mounted refrigerator independent of the air-conditioning assembly 4, which will undoubtedly increase the energy consumption of the vehicle. Moreover, the vehicle-mounted refrigerator is installed in the cabin, and the heat dissipation of the compressor affects the temperature in the car and the cooling effect in the cabin.

[0032] In one embodiment, the cold source output by the air-conditioning assembly 4 is cold air; the connecting port includes an air inlet 11 for introducing the cold air output by the air-conditioning assembly 4, and the box body 1 also includes an air outlet 12; wherein, the cold air blown in by the air inlet 11 circulates in the accommodating cavity and then blown out from the air outlet 12.

[0033] In this application, the cold source output by the air-conditioning assembly 4 is cold air. The cold air enters the housing 1 through the air inlet 11, flows through the housing 1, and reduces the internal temperature of the accommodating cavity. The cold air is then blown out through the air outlet 12, so that the air outlet 12 of the housing 1 serves as one of the air outlets 12 of the air-conditioning assembly 4, which does not affect the cooling effect of the air-conditioning assembly 4 on the vehicle compartment. At the same time, a low-temperature environment is formed inside the housing 1, which has the effect of cooling a refrigerator. Specifically, the cold air blown out by the air-conditioning assembly 4 has not yet dispersed when entering the housing 1, so it has a lower temperature, ensuring the cooling effect of the refrigerator.

[0034] Optionally, some air-guiding structures can be provided inside the box body 1 so that the cold air can fully fill the accommodating cavity of the box body 1 and then be blown out through the air outlet 12. In one embodiment, the cold air is blown into the accommodating cavity at the top of the box body 1 and then flows downward along the inner wall of the accommodating cavity. Inclined fins are provided on the inner wall of the accommodating cavity so that the cold air is guided into other parts of the accommodating cavity by the fins during the downward circulation.

[0035] Furthermore, the air-conditioning assembly 4 includes a driving air-conditioning assembly 41 and a parking air-conditioning assembly 42. A damper 13 is provided at the air inlet 11 for controlling the closing of the air inlet 11 and connecting the cold air output by the driving air-conditioning assembly 41 or the cold air output by the parking air-conditioning assembly 42.

[0036] In this application, during driving, the driving air-conditioning assembly 41 works, and the air inlet 11 is controlled by the damper 13 to be connected with the cold air output by the air-conditioning assembly 4, so that the refrigerator is cooled during driving; during parking, the air inlet 11 is controlled by the damper 13 to be connected with the cold air output by the parking air-conditioning assembly 42, so that the refrigerator is cooled when parked; the air inlet 11 can also be closed by controlling the damper 13, and the refrigerator and the air outlet 12 on the refrigerator are closed.

[0037] In another embodiment, the cold source output by the air-conditioning assembly 4 is a refrigerant; the refrigerator for mobile tools further includes a heat exchange component 2, which is connected to the refrigerant output by the air-conditioning assembly 4 through a connecting port.

[0038] In the present application, the refrigerant output by the air conditioning assembly 4 forms a low-temperature environment inside the housing 1 after heat exchange through the heat exchange component 2. The refrigerant output by the air conditioning assembly 4 can be directly used for refrigeration, achieving deep refrigeration. Compared with the refrigeration of the cold air output by the air conditioning assembly 4 in the first embodiment, a lower temperature can be formed. Specifically, because the refrigerator used for mobile tools is relatively small, the refrigerant output to the refrigerator can be stopped after the interior of the storage chamber reaches the set temperature, thereby preventing excessive refrigerant consumption. Moreover, the refrigerant can be continued to be delivered after the temperature rises, so that the interior of the refrigerator maintains a constant refrigeration temperature.

[0039] Furthermore, the heat exchange assembly 2 includes a heat exchanger 21, a core 22 and a water pump 23. The heat exchanger 21 has a first passage and a second passage. The first passage is used for the circulation of refrigerant. The core 22 is arranged in the accommodating cavity of the box body 1. The core 22 and the second passage of the heat exchanger 21 form an antifreeze circulation loop through the water pump 23.

[0040] In the present application, the refrigerant output by the air conditioning assembly 4 enters the first channel, exchanges heat with the antifreeze in the second channel, and is driven by the water pump 23 to circulate the antifreeze between the heat exchanger 21 and the core 22, thereby achieving refrigeration of the interior of the accommodating cavity. Specifically, the low-temperature, low-pressure gaseous refrigerant output by the air conditioning assembly 4 enters the heat exchanger 21, exchanges heat with the antifreeze in the heat exchanger 21, and then the refrigerant, which coexists gas and liquid, returns to the air conditioning assembly 4. The water pump 23 is activated to circulate the antifreeze, allowing the low-temperature antifreeze to enter the core 22 inside the cabinet 1, causing the interior of the accommodating cavity to be cooled.

[0041] Furthermore, the heat exchange component 2 also includes an expansion water tank 24, which has an inlet pipe and an outlet pipe. The inlet pipe and the outlet port 212 are respectively provided with a first expansion valve 25 and a second expansion valve 26. The expansion water tank 24 is connected to the antifreeze circulation loop through the inlet pipe and the outlet pipe.

[0042] In the present application, an expansion water tank 24 is inserted into the antifreeze circulation loop, and the expansion water tank 24 is used to hold antifreeze. When the pressure in the antifreeze circulation loop is too high, the first expansion valve 25 is opened and the second expansion valve 26 is in a closed state, so that part of the antifreeze in the antifreeze circulation loop enters the expansion water tank 24; when the pressure in the antifreeze circulation loop is too low, the first expansion valve 25 is closed and the second expansion valve 26 is opened, and part of the antifreeze in the expansion water tank 24 enters the antifreeze circulation loop for replenishment, thereby ensuring a flexible supply of antifreeze in the antifreeze circulation loop.

[0043] Furthermore, the refrigerator for mobile tools also includes a circulation fan 3, which is arranged on the box body 1 and is used to drive the air in the accommodating cavity to circulate.

[0044] In the present application, the circulating fan 3 drives the air in the accommodating cavity to circulate, so that the air passes through the core 22, and the cold energy of the core 22 is distributed to the entire accommodating cavity, thereby realizing the deep refrigeration function of the refrigerator.

[0045] Furthermore, a drain port 14 is provided on the box body 1 so that the condensed water can flow out of the vehicle compartment through the drain port 14 on the box body 1 .

[0046] Specifically, when the refrigerant performs deep cooling on the refrigerator, the air inlet 11 and the air outlet 12 of the box body 1 are closed to ensure that the cold air in the accommodating cavity can circulate, so that a balanced low-temperature environment can be formed inside the refrigerator.

[0047] In some embodiments, the air conditioning assembly 4 includes a driving air conditioning assembly 41 and a parking air conditioning assembly 42 , and the first passage of the heat exchanger 21 exchanges heat with the refrigerant output by the driving air conditioning assembly 41 or the refrigerant output by the parking air conditioning assembly 42 .

[0048] In the present application, during driving, the driving air-conditioning assembly 41 passes the refrigerant into the first passage of the heat exchanger 21, thereby performing deep cooling on the refrigerator; when parked, the parking air-conditioning assembly 42 has lower power consumption, passes the refrigerant into the first passage of the heat exchanger 21, thereby performing deep cooling on the refrigerator, reducing energy consumption.

[0049] In some embodiments, an inlet 211 is provided at one end of the first passage of the heat exchanger 21, and an outlet 212 is provided at the other end; the inlet 211 is used to input the refrigerant output by the driving air-conditioning assembly 41, and the outlet 212 is used to output the refrigerant after heat exchange to the driving air-conditioning assembly 41; or, the inlet 211 is used to input the refrigerant output by the parking air-conditioning assembly 42, and the outlet 212 is used to output the refrigerant after heat exchange to the parking air-conditioning assembly 42.

[0050] In this application, either the driving air conditioning assembly 41 or the parking air conditioning assembly 42 is turned on according to actual conditions.

[0051] The refrigerator for mobile tools utilizes the cold source output by the air-conditioning assembly 4 on the mobile tool to cool the interior of the box 1, does not generate additional heat, and does not discharge heat into the mobile tool, thereby effectively reducing the energy consumption of the mobile tool.

[0052] Figure 4 A schematic diagram showing the structure of the connection between an air conditioning assembly and a refrigerator in a mobile tool provided by an embodiment of the present application is shown; Figure 5 Show Figure 4 Schematic diagram of the structure connecting the refrigerant output of the central air conditioning assembly and the heat exchange component.

[0053] like Figure 4-5 As shown, an embodiment of the present application provides a mobile tool, including: an air-conditioning assembly 4; and the above-mentioned refrigerator for the mobile tool, wherein the connection port of the refrigerator for the mobile tool is connected to the cold source output by the air-conditioning assembly 4.

[0054] In the present application, by combining the air-conditioning assembly 4 carried by the mobile tool with the refrigerator, the cold air output by the air-conditioning assembly 4 is used for ordinary cooling of the refrigerator, or the refrigerant output by the air-conditioning assembly 4 is used for deep cooling of the refrigerator, the refrigeration function of the refrigerator can be realized without increasing the extra energy consumption of the vehicle body, thereby saving the energy consumption of the vehicle. At the same time, no extra heat will be generated and dissipated into the car, which will not affect the cooling inside the car.

[0055] Specifically, the air conditioning assembly 4 includes a driving air conditioning assembly 41 and a parking air conditioning assembly 42, wherein the driving air conditioning assembly 41 includes a first compressor 411, a first condenser 412, a first throttle short pipe 413 and a first evaporator 414, and the parking air conditioning assembly 42 includes a second compressor 421, a second condenser 422, a second throttle short pipe 423 and a second evaporator 424, and the air conditioning assembly 4 also includes a first three-way valve 43, a second three-way valve 44, a third three-way valve 45 and a fourth three-way valve 46. The first three-way valve 43 is connected to the air conditioning assembly 41. The three ends are respectively connected to the output end of the first evaporator 414, the input end of the first compressor 411 and the second three-way valve 44; the three ends of the third three-way valve 45 are respectively connected to the output end of the second evaporator 424, the input end of the second compressor 421 and the second three-way valve 44; the third end of the second three-way valve 44 is connected to the inlet 211 of the first pipeline of the heat exchanger 21; the three ends of the fourth three-way valve 46 are respectively connected to the outlet 212 of the first pipeline of the heat exchanger 21, the input end of the first compressor 411 and the input end of the second compressor 421.

[0056] When the refrigerator is in normal refrigeration mode and the vehicle's air conditioning is turned on, the first compressor 411 starts, sucking in low-temperature, low-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant is then discharged from the first compressor 411 and enters the first condenser 412. The refrigerant condenses into low-temperature, high-pressure liquid refrigerant in the first condenser 412 and enters the first throttling short tube 413. After throttling, the low-temperature, high-pressure liquid refrigerant is throttled to form a low-temperature, low-pressure liquid refrigerant, which enters the first evaporator 414. At this point, the refrigerant evaporates into gaseous refrigerant in the first evaporator 414 and then enters the first compressor 411, completing a refrigeration cycle. In this mode, the refrigerator draws cooling energy only from the air duct of the vehicle's air conditioning assembly 41. At this point, water pump 23 is turned off; first expansion valve 25 and second expansion valve 26 are closed; the end of first three-way valve 43 connected to second three-way valve 44 is closed, and the end connected to first compressor 411 is opened; damper 13 is opened to the end connected to the driving air conditioning vent and closed to the end connected to the parking air conditioning vent; refrigerator air inlet 11 is opened; refrigerator air outlet 12 is opened; and circulating fan 3 is turned off. The cold air from the air conditioner evaporator assembly is directed into the air duct connected to the refrigerator and blown out of the refrigerator air outlet 12, achieving normal refrigeration of the vehicle refrigerator.

[0057] Similarly, when the refrigerator is in normal refrigeration mode and the vehicle's parking air conditioner is turned on, the second compressor 421 starts, sucking in low-temperature, low-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant is then discharged from the second compressor 421 and enters the second condenser 422. There, the refrigerant condenses into low-temperature, high-pressure liquid refrigerant, which then enters the second throttling short tube 423. After throttling, the low-temperature, high-pressure liquid refrigerant is throttled back to a low-temperature, low-pressure liquid refrigerant, which enters the second evaporator 424. At this point, the refrigerant evaporates into gaseous refrigerant in the second evaporator 424 and then enters the second compressor 421, completing a refrigeration cycle. In this mode, the refrigerator draws cooling energy only from the air duct of the vehicle's parking air conditioner. At this point, water pump 23 is turned off; first expansion valve 25 and second expansion valve 26 are closed; the end of third three-way valve 45 connected to second three-way valve 44 is closed, and the end connected to second compressor 421 is open; damper 13 is opened to the end connected to the driving air conditioning vent and closed to the end connected to the parking air conditioning vent; refrigerator air inlet 11 is opened; refrigerator air outlet 12 is opened; and circulating fan 3 is turned off. The cold air from the air conditioner evaporator assembly is directed into the air duct connected to the refrigerator and blown out of the refrigerator air outlet 12, achieving normal refrigeration of the vehicle refrigerator.

[0058] When the refrigerator is in deep freeze mode and the vehicle's air conditioning is on, the first compressor 411 starts, drawing in low-temperature, low-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant is then discharged from the first compressor 411 and enters the first condenser 412. There, the refrigerant condenses into low-temperature, high-pressure liquid refrigerant, which then enters the first throttling tube 413. After throttling, the low-temperature, high-pressure liquid refrigerant enters the first evaporator 414, where it evaporates into gaseous refrigerant before entering the first compressor 411, completing a refrigeration cycle. At this point, the refrigerant temperature before entering the first compressor 411 is still between 3°C and 8°C. The first three-way valve 43, connected to the second three-way valve 44, is opened, and the end connected to the first compressor 411 is closed. The end of the second three-way valve 44 connected to the third three-way valve 45 is closed. The low-temperature, low-pressure gaseous refrigerant enters the heat exchanger 21 and exchanges heat with the antifreeze liquid in the heat exchanger 21. The refrigerant in a gas-liquid coexistence state then flows through the fourth three-way valve 46. At this time, the end of the fourth three-way valve 46 connected to the second compressor 421 is closed; the refrigerant passes through the fourth three-way valve 46 and enters the gas-liquid separator of the first compressor 411, and then enters the compressor for a refrigeration cycle. At this time, the water pump 23 is turned on and the antifreeze liquid begins to circulate. When the low-temperature antifreeze liquid enters the core 22 in the refrigerator, the circulating fan 3 is started, the refrigerator air inlet 11 is closed, and the refrigerator air outlet 12 is closed. The circulating fan 3 circulates the air in the internal space of the refrigerator's storage chamber, obtains cold energy through the core 22, and thereby provides deep refrigeration for the refrigerator.

[0059] Similarly, when the refrigerator is in deep freeze mode and the vehicle's parking air conditioner is turned on, the second compressor 421 starts, drawing in low-temperature, low-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant is then discharged from the second compressor 421 and enters the second condenser 422. There, the refrigerant condenses into low-temperature, high-pressure liquid refrigerant, which then enters the second throttling tube 423. After throttling, the low-temperature, high-pressure liquid refrigerant enters the second evaporator 424, where it evaporates into gaseous refrigerant before entering the second compressor 421, completing a refrigeration cycle. At this point, the refrigerant temperature before entering the second compressor 421 is still between 3°C and 8°C. At this point, the third three-way valve 45 connected to the second three-way valve 44 is opened, while the end connected to the second compressor 421 is closed. The end of the second three-way valve 44 connected to the first three-way valve 43 is closed. The low-temperature, low-pressure gaseous refrigerant enters the heat exchanger 21 and exchanges heat with the antifreeze in the heat exchanger 21. The refrigerant in a gas-liquid coexistence state then flows through the fourth three-way valve 46. At this time, the end of the fourth three-way valve 46 connected to the first compressor 411 is closed; the refrigerant passes through the fourth three-way valve 46 and enters the gas-liquid separator of the second compressor 421, and then enters the compressor for a refrigeration cycle. At this time, the water pump 23 is turned on and the antifreeze begins to circulate. When the low-temperature antifreeze enters the core 22 in the refrigerator's storage chamber, the circulating fan 3 is started, the refrigerator's air inlet 11 is closed, and the refrigerator's air outlet 12 is closed. The circulating fan 3 circulates the air in the internal space of the refrigerator's storage chamber, obtains cold energy through the core 22, and thereby provides deep refrigeration for the refrigerator.

[0060] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0061] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0062] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A refrigerator for a mobile tool, arranged on the mobile tool, wherein the mobile tool has an air conditioning assembly (4); characterized in that: The refrigerator for mobile tools comprises a box (1), the box (1) having a receiving cavity and a connection port communicating with the receiving cavity, the box (1) being connected to a cold source output by the air conditioning assembly (4) via the connection port; The cold source output by the air conditioning assembly (4) is cold air; The connection port includes an air inlet (11) for introducing cold air output by the air conditioning assembly (4), and the box (1) also includes an air outlet (12); The cold air blown in through the air inlet (11) circulates in the accommodating cavity and is then blown out through the air outlet (12); The cold source output by the air conditioning assembly (4) is a refrigerant; The refrigerator for mobile tools further comprises a heat exchange component (2), wherein the heat exchange component (2) is connected to the refrigerant output by the air conditioning assembly (4) via the connection port; The cold air output by the air conditioning assembly (4) is used for ordinary refrigeration of the refrigerator; the refrigerant output by the air conditioning assembly (4) is used for deep refrigeration of the refrigerator; when the refrigerant performs deep refrigeration on the refrigerator, the air inlet (11) and the air outlet (12) of the box body (1) are both closed.

2. The refrigerator for mobile tools according to claim 1, characterized in that: The air conditioning assembly (4) includes a driving air conditioning assembly (41) and a parking air conditioning assembly (42), and a damper (13) is provided at the air inlet (11) for controlling the closing of the air inlet (11) and connecting the cold air output by the driving air conditioning assembly (41) or the cold air output by the parking air conditioning assembly (42).

3. The refrigerator for mobile tools according to claim 1, characterized in that: The heat exchange assembly (2) includes a heat exchanger (21), a core (22) and a water pump (23), wherein the heat exchanger (21) has a first passage and a second passage, wherein the first passage is used for the circulation of the refrigerant, the core (22) is arranged in the accommodating cavity of the box (1), and the core (22) and the second passage of the heat exchanger (21) form an antifreeze circulation loop through the water pump (23).

4. The refrigerator for mobile tools according to claim 3, characterized in that: The heat exchange assembly (2) further includes an expansion water tank (24), the expansion water tank (24) having an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe being provided with a first expansion valve (25) and a second expansion valve (26), respectively, and the expansion water tank (24) is connected to an antifreeze liquid circulation circuit via the inlet pipe and the outlet pipe.

5. The refrigerator for mobile tools according to claim 1, characterized in that: The refrigerator for mobile tools further comprises a circulation fan (3), which is arranged on the box body (1) and is used to drive the circulation of air in the accommodating cavity.

6. The refrigerator for mobile tools according to claim 3, characterized in that: The air conditioning assembly (4) includes a driving air conditioning assembly (41) and a parking air conditioning assembly (42), and the first passage of the heat exchanger (21) exchanges heat with the refrigerant output by the driving air conditioning assembly (41) or the refrigerant output by the parking air conditioning assembly (42).

7. The refrigerator for mobile tools according to claim 6, characterized in that: One end of the first passage of the heat exchanger (21) is provided with an inlet (211), and the other end is provided with an outlet (212); The inlet (211) is used to input the refrigerant output by the vehicle air conditioning assembly (41), and the outlet (212) is used to output the refrigerant after heat exchange to the vehicle air conditioning assembly (41); Alternatively, the inlet (211) is used to input the refrigerant output by the parking air conditioning assembly (42), and the outlet (212) is used to output the refrigerant after heat exchange to the parking air conditioning assembly (42).

8. A mobile tool, characterized in that: include: Air conditioning assembly (4); as well as The refrigerator for mobile tools according to any one of claims 1 to 7, wherein the connection port of the refrigerator for mobile tools is connected to the cold source output by the air conditioning assembly (4).

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