Vehicle-mounted refrigerator

Abstract

The utility model relates to the field of vehicle-mounted refrigerators, and discloses a vehicle-mounted refrigerator which comprises a shell, a storage cavity and a refrigeration cavity are arranged in the shell, the refrigeration cavity is thermally coupled with a thermal management system of an automobile, an air duct is arranged between the storage cavity and the refrigeration cavity, and an air inlet and an air outlet which are communicated with the storage cavity and the air duct are arranged on the inner wall of the air duct. The storage cavity and the refrigeration cavity are thermally coupled through an air duct, and a heating device is arranged in the storage cavity. According to the vehicle-mounted refrigerator, the refrigerating cavity and the thermal management system of the vehicle are thermally coupled, the storage cavity and the refrigerating cavity are thermally coupled, the thermal management system of the vehicle is used for refrigerating the storage cavity, the purpose of cooling the storage cavity is achieved, and meanwhile the purpose of heating can be achieved through the heating device in the storage cavity. According to the vehicle-mounted refrigerator, refrigeration of the storage cavity of the vehicle-mounted refrigerator can be achieved without arranging an independent compressor on the vehicle-mounted refrigerator, the problems that the occupied space is large and noise is caused by the compressor are solved, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, especially a kind of vehicle refrigerator. BACKGROUND

[0002] With the development of automobile technology, the function of automobile is more and more. At present, the automobile with vehicle refrigerator is loved by the majority of consumers because it can provide cold beverage or food space for passengers on the car, and the vehicle refrigerator gradually becomes the standard configuration of luxury car model.

[0003] There are mainly two kinds of vehicle refrigerator in the market at present, one is semiconductor vehicle refrigerator, its principle is to rely on electronic chip refrigeration, but its refrigeration efficiency is low, refrigeration temperature is greatly influenced by ambient temperature, and refrigeration capacity is weak;The other is compressor type vehicle refrigerator, which realizes refrigeration by traditional compressor technology, and the refrigeration temperature is low, and the refrigeration efficiency is high, which is the mainstream direction of future vehicle refrigerator development.

[0004] However, the compressor type vehicle refrigerator is provided with independent compressor, condenser and other equipment, and occupies larger space, and the compressor will produce noise when working, and these shortcomings become the main pain points of restricting the wide application of compressor type vehicle refrigerator. INVENTION CONTENTS

[0005] The utility model provides a new vehicle refrigerator in view of the shortcomings of prior art vehicle refrigerator, which is coupled to the original thermal management system of vehicle, and fully utilizes the original thermal management system of vehicle to realize the refrigeration of vehicle refrigerator, without independent compressor to realize refrigeration, solves the problem caused by setting independent compressor of vehicle refrigerator, and reduces cost.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] A kind of vehicle refrigerator, including shell, setting up storage cavity and refrigeration cavity in shell, refrigeration cavity and the thermal management system of automobile are thermally coupled, setting up air duct between storage cavity and refrigeration cavity, the inner wall of air duct is provided with the air inlet and air outlet that communicate storage cavity and air duct, storage cavity and refrigeration cavity are realized thermal coupling by air duct, setting up heating device in storage cavity.

[0008] The vehicle-mounted refrigerator of the patent realizes the purpose of cooling the storage cavity by thermally coupling the refrigeration cavity and the thermal management system of the vehicle, thermally coupling the storage cavity and the refrigeration cavity, using the thermal management system of the vehicle to refrigerate the refrigeration cavity, and then using the refrigeration cavity to refrigerate the storage cavity. Meanwhile, the heating device is arranged in the storage cavity, so that the storage cavity has the function of heating, and when the storage cavity realizes the heating function, it does not have to rely on the thermal management system of the vehicle, avoiding frequent starting of the thermal management system of the vehicle and reducing the waste of vehicle energy. The scheme does not need to arrange an independent compressor on the vehicle-mounted refrigerator to realize refrigeration of the storage cavity of the vehicle-mounted refrigerator, solves the problems of large occupied volume and noise caused by the compressor, and reduces the cost.

[0009] In another embodiment provided by the patent, the phase change cold storage material is arranged in the refrigeration cavity. The phase change cold storage material is a material capable of storing cold energy, which realizes the function of cold storage by cooling the phase change material to make it change phase. The scheme can store part of the cold energy generated by the vehicle thermal management system in the phase change cold storage material, and can also cool the storage cavity by the cold energy stored in the phase change cold storage material when the vehicle thermal management system does not work, avoiding frequent starting of the refrigeration function of the vehicle thermal management system, thereby reducing the energy waste of the whole vehicle.

[0010] In another embodiment provided by the patent, the air-cooled fin is arranged in the air duct, part of the air-cooled fin is in contact with the phase change cold storage material, and the other part of the air-cooled fin is located in the air duct. The scheme can improve the heat exchange speed between the phase change cold storage material and the air in the air duct, so that the refrigeration effect is better.

[0011] In another embodiment provided by the patent, the heating wire is arranged on the air-cooled fin. The scheme arranges the heating wire on the air-cooled fin to defrost the air-cooled fin, preventing the refrigeration efficiency from being reduced and the refrigeration effect from being affected due to icing of the air-cooled fin.

[0012] In another embodiment provided by the patent, the fan is arranged in the air duct, and the fan circulates and circulates the air in the air duct and the storage cavity. The scheme can accelerate the circulation speed of the air in the air duct and the storage cavity, improve the refrigeration efficiency, and control the speed of air circulation by controlling the rotating speed of the fan, thereby controlling the temperature in the storage cavity.

[0013] In another embodiment of the patent, the air inlet is provided with a first air door capable of opening or closing the air inlet, and the air outlet is provided with a second air door capable of opening or closing the air outlet. By arranging the first air door at the air inlet and the second air door at the air outlet, the air inlet and the air outlet can be conveniently opened or closed, so that the speed of air circulation in the air duct and the storage cavity can be controlled by controlling the opening angle of the first air door or the second air door, and the temperature in the storage cavity can be controlled.

[0014] In another embodiment of the patent, at least one of the first air door and the second air door is an electronic air door. The electronic air door in the present scheme is an air door that can be controlled by an optical signal. By arranging at least one of the first air door and the second air door as an electronic air door, the opening and closing degree of the first air door or the second air door can be conveniently controlled.

[0015] In another embodiment of the patent, the shell is a double-layer shell, and a heat preservation material is arranged between the double-layer shell, or the double-layer shell is a vacuum environment. The double-layer shell has a heat preservation function, which avoids the transmission of heat in the shell to the outside, reduces energy waste, and improves the refrigeration and heating effect.

[0016] In another embodiment of the patent, the bottom of the storage cavity is provided with a drainage pipeline. The drainage pipeline arranged at the bottom of the storage cavity facilitates the drainage of condensed water in the storage cavity, prevents the accumulation of condensed water in the storage cavity from causing deterioration and generating odor, and thus affects the customer experience.

[0017] In another embodiment of the patent, a first temperature sensor is arranged in the storage cavity, and a second temperature sensor is arranged in the refrigeration cavity. By arranging temperature sensors in the storage cavity and the refrigeration cavity, the temperature in the storage cavity and the refrigeration cavity can be detected, and intelligent control can be facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the vehicle-mounted refrigerator of the present application.

[0019] The names of the parts referred to by the respective numerical designations in the drawings are as follows:

[0020] 1 - shell, 2 - storage cavity, 3 - refrigeration cavity, 4 - phase change cold storage material, 5 - air duct, 6 - air inlet, 7 - air outlet, 8 - air-cooled fin, 9 - fan, 10 - first air door, 11 - second air door, 12 - heating device, 13 - article, 14 - pipeline. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] As Figure 1 The utility model discloses a kind of vehicle-mounted refrigerators, including shell 1, storage cavity 2 and refrigeration cavity 3 are provided in shell 1, refrigeration cavity 3 and the thermal management system of car is thermally coupled, storage cavity 2 and refrigeration cavity 3 are thermally coupled.The thermal coupling described in the scheme refers to that two objects can be heat transferred by certain medium.The thermal management system of car referred to in the scheme refers to the system that can refrigerate or heat that car originally carries, such as air conditioning system.

[0023] Shell 1 is enclosed to form a cavity, the cavity is divided into two spaces by an inner wall, and the two spaces are storage cavity 2 and refrigeration cavity 3 respectively, storage cavity 2 is used to place article 13, and refrigeration cavity 3 is used to transfer cold quantity into storage cavity 2 to cool article 13 in storage cavity 2.Storage cavity 2 and refrigeration cavity 3 can be communicated or not communicated, and the embodiment does not make limitation, when storage cavity 2 and refrigeration cavity 3 are communicated, storage cavity 2 and refrigeration cavity 3 can be heat transferred by air flow;When storage cavity 2 and refrigeration cavity 3 are not communicated, storage cavity 2 and refrigeration cavity 3 can be heat transferred by heat conduction, that is, heat is directly transferred between storage cavity 2 and refrigeration cavity 3 through the inner wall.Refrigeration cavity 3 is also thermally coupled with the thermal management system of car, such as refrigeration cavity 3 is also thermally coupled with the air conditioning system of car.In this way, when refrigeration is needed in storage cavity 2, the air conditioning system originally possessed by car can be used to refrigerate, at least part of the cold quantity is transferred into refrigeration cavity 3 through cooling medium, and then from refrigeration cavity 3 to storage cavity 2, to realize the refrigeration of storage cavity 2.The scheme can realize the refrigeration of storage cavity 2 of vehicle-mounted refrigerator through the thermal management system originally possessed by car, without setting compressor on vehicle-mounted refrigerator separately, solve the problem of space occupation and noise caused by setting independent compressor on vehicle-mounted refrigerator, and reduce cost.

[0024] Further, the storage cavity 2 is provided with a heating device 12. The heating device 12 can be an electric heating wire, an electric heating tube, a heating film, a far infrared heating device, and the heating mode of the heating device 12 is not limited in the embodiment. By arranging the heating device 12 in the storage cavity 2, the storage cavity 2 not only has the refrigeration function, but also has the heating function, thereby meeting the customer's demand for heating food. By arranging the heating device 12 independently in the storage cavity 2, the storage cavity 2 can realize heating without relying on the thermal management system of the automobile, avoiding frequent starting of the thermal management system of the automobile, and reducing the energy waste of the whole vehicle.

[0025] Preferably, the shell 1 is a double-layer shell, and a heat preservation material is arranged between the double-layer shell, or a vacuum environment is formed between the double-layer shell. In this way, the shell 1 has the heat preservation function, avoiding heat transfer from the shell 1 to the outside, reducing energy waste, and improving the refrigeration and heating effect.

[0026] Preferably, the refrigeration cavity 3 is provided with a phase change cold storage material 4. The phase change cold storage material in the scheme refers to a material capable of storing cold energy. The phase change material is cooled to change its phase, thereby realizing the cold storage function. By arranging the phase change cold storage material 4 in the refrigeration cavity 3, a part of the cold energy generated by the operation of the automobile thermal management system can be stored in the phase change cold storage material 4. When the automobile thermal management system is not working, the phase change cold storage material 4 can also be used to cool the storage cavity 2, avoiding frequent starting of the refrigeration function of the automobile thermal management system, thereby reducing the energy waste of the whole vehicle.

[0027] As shown in Figure 1 , the automobile thermal management system such as an air conditioning system (not shown in the figure) transports the cooled medium (such as cold air) to the refrigeration cavity 3 through a pipeline 14. The refrigeration cavity 3 is provided with a phase change cold storage material 4. The pipeline 14 spirals in the phase change cold storage material 4, so that the outer surface of the pipeline 14 contacts the phase change cold storage material 4 as much as possible, so as to transfer as much cold energy as possible to the phase change cold storage material 4.

[0028] Preferably, the refrigeration cavity 3 is not filled with the phase change cold storage material 4. As shown in Figure 1 , the upper part of the refrigeration cavity 3 still has a certain space to prevent the phase change cold storage material 4 from expanding in volume when the phase change occurs, and to prevent the refrigeration cavity 3 from being broken.

[0029] Preferably, as shown in Figure 1As shown, a wind channel 5 is further arranged between the storage cavity 2 and the refrigeration cavity 3, and the inner wall of the wind channel 5 is provided with an air inlet 6 and an air outlet 7 which are in communication with the storage cavity 2 and the wind channel 5. The storage cavity 2 and the refrigeration cavity 3 perform heat transfer through the wind channel 5, the air in the wind channel 5 is cooled by the refrigeration cavity 3 first, and then the air in the wind channel 5 and the air in the storage cavity 2 are circulated to achieve the purpose of reducing the temperature in the storage cavity 2. In this way, the refrigeration efficiency is high, and the temperature in the storage cavity 2 can be controlled by controlling the speed of air circulation, which is reliable and low in cost.

[0030] Preferably, as shown in the drawings, Figure 1 As shown, the air inlet 6 is arranged at the lower side of the wind channel 5, and the air outlet 7 is arranged at the upper side of the wind channel 5. After the hot air in the storage cavity 2 enters the wind channel 5 from the air inlet 6, the hot air rises, is cooled by the phase change cold storage material 4, and then returns to the storage cavity 2 from the air outlet 7, and the cold air at the upper end of the storage cavity 2 descends and enters the wind channel 5 from the air inlet 6. This scheme utilizes the principle that hot air rises and cold air descends, so that the air circulation flow is more smooth.

[0031] Preferably, the wind channel is provided with a wind cooling fin 8, the wind cooling fin 8 is a heat sink made of a material with good heat conduction performance, a part of the wind cooling fin 8 is in contact with the phase change cold storage material 4, and the other part of the wind cooling fin 8 is located in the wind channel 5. By arranging the wind cooling fin 8 in the wind channel 5, the cold energy in the phase change cold storage material 4 can be better transferred to the wind channel 5, and the efficiency of cooling the air in the wind channel 5 is improved. The wind cooling fin 8 can be in direct contact with the phase change cold storage material 4 or in indirect contact with the phase change cold storage material 4, which is not limited in the embodiment. The direct contact of the wind cooling fin 8 with the phase change cold storage material 4 means that a part of the wind cooling fin 8 is directly inserted into the refrigeration cavity 3, and a part of the wind cooling fin 8 is directly in contact with the phase change cold storage material 4; the indirect contact of the wind cooling fin 8 with the phase change cold storage material 4 means that a separator is arranged between the wind cooling fin 8 and the phase change cold storage material 4, and the separator can be the outer wall of the refrigeration cavity 3, or the separator can be a heat-conducting material (such as heat-conducting silicone grease) and the like.

[0032] Preferably, the wind cooling fin 8 is provided with a heating wire (not shown in the drawings). During the refrigeration process, frost is easy to form on the wind cooling fin 8, if the frost is not removed in time, the frost will wrap the wind cooling fin 8, which will reduce the heat transfer efficiency of the wind cooling fin 8, and the frost will occupy the space in the wind channel 5, and in severe cases, the wind channel 5 can be completely blocked, which will affect the circulation of air in the wind channel 5. The heating wire can heat the wind cooling fin 8 when it is powered on, which is used for defrosting the wind cooling fin 8, preventing the refrigeration efficiency from being reduced due to the frost on the wind cooling fin 8, and further affecting the refrigeration effect.

[0033] Preferably, a fan 9 is arranged in the air duct 5, which can accelerate the air flow in the air duct 5, thereby improving the refrigeration efficiency, and the speed of the air flow can be controlled by controlling the rotating speed of the fan 9, thereby controlling the temperature in the storage cavity 2.

[0034] Preferably, as shown in Figure 1 the first air door 10 is arranged at the air inlet 6, and the second air door 11 is arranged at the air outlet 7. By arranging the first air door 10 and the second air door 11 at the air inlet 6 and the air outlet 7 respectively, the air inlet 6 and the air outlet 7 can be conveniently opened or closed, so that the speed of the air flow in the air duct 5 and the storage cavity 2 can be controlled by controlling the opening angle of the first air door 10 or the second air door 11, thereby controlling the temperature in the storage cavity 2.

[0035] The structure of the first air door 10 and the second air door 11 is not limited in the embodiment, and one of the embodiments is as shown in Figure 1 the upper end of the first air door 10 is rotatably connected to the upper end of the air inlet 6, and the lower end of the first air door 10 is overlapped on the edge of the lower end of the air inlet 6, when refrigeration is needed, the fan 9 is started, the air in the air duct 5 flows under the action of the fan 9, the first air door 10 is opened under the action of the wind, and when the fan 9 is turned off, the first air door 10 is closed under the action of its own gravity. The structure of the second air door 11 is similar to that of the first air door 10, and will not be described herein again. The air door with such structure has simple structure and low cost.

[0036] Preferably, at least one of the first air door 10 and the second air door 11 is an electronic air door. The electronic air door in the embodiment is an air door which can be controlled by photoelectric signal, for example, the air door contains a motor device or an electromagnet device, which acts under the control of an electric signal to control the opening and closing of the air door. By making at least one of the first air door and the second air door an electronic air door, the opening and closing degree of the first air door or the second air door can be conveniently controlled.

[0037] Preferably, a drain pipe (not shown in the figure) is arranged at the bottom of the storage cavity 2. During refrigeration, some condensed water will inevitably be produced in the storage cavity 2, if the condensed water is not discharged in time, it may be deteriorated after a long time, producing odor and posing health risks. By arranging the drain pipe at the bottom of the storage cavity 2, the condensed water in the storage cavity 2 can be discharged in time, avoiding bad experience for the customers.

[0038] Preferably, the bottom of the storage cavity 2 is arranged to be inclined, or the bottom of the storage cavity 2 is designed to be irregular (such as ladder-shaped), regardless of how, the drain pipe is arranged at the lowest point of the storage cavity 2 to facilitate the discharge of all the condensed water.

[0039] Preferably, the vehicle refrigerator further comprises a temperature sensor and a controller, the temperature sensor comprises a first temperature sensor arranged in the storage cavity 2, the first temperature sensor is used for detecting the temperature in the storage cavity 2, and the controller is electrically connected with the first temperature sensor and the motor 9. When the vehicle refrigerator starts the refrigeration function, the first temperature sensor detects the temperature in the storage cavity 2 in real time, when the temperature in the storage cavity 2 is greater than or equal to a first preset temperature threshold, the controller controls the motor 9 to start, and the air starts to circulate and flow, so as to cool the storage cavity 2; when it is detected that the temperature in the storage cavity 2 is less than a second preset temperature threshold, the controller controls the motor 9 to stop, and the second preset temperature threshold is less than the first preset temperature threshold. In this way, intelligent control of the vehicle refrigerator can be realized.

[0040] Preferably, the vehicle refrigerator further comprises a timing device and an alarm device, and the timing device and the alarm device are electrically connected with the controller. When the fan 9 is started, the timing device starts timing, and if the temperature detected by the first temperature sensor is still greater than or equal to the first preset temperature threshold after a preset time, the controller controls the alarm device to issue an alarm prompt and controls the fan 9 to stop; after the fault is confirmed and solved, the fan 9 can be started again.

[0041] Preferably, the vehicle refrigerator further comprises a second temperature sensor arranged in the refrigeration cavity 3, the second temperature sensor is used for detecting the temperature of the phase change heat storage material 4, and the second temperature sensor is electrically connected with the controller. When the second temperature sensor detects that the temperature of the phase change heat storage material 4 is greater than or equal to a third preset temperature threshold, the controller sends an instruction to the automobile control system to start the thermal management system (such as the air conditioning system) of the automobile to perform refrigeration; when the second temperature sensor detects that the temperature of the phase change heat storage material 4 is less than a fourth preset temperature threshold, the controller sends an instruction to the automobile control system to close the thermal management system of the automobile, or closes the valve on the pipeline 14, and the third preset temperature threshold is greater than the fourth preset temperature threshold.

[0042] Preferably, the heating device 12 is electrically connected with the controller. When the controller receives a heating instruction, if the temperature detected by the first temperature sensor is less than or equal to a fifth preset temperature threshold, the heating device 12 is started to perform heating; if the temperature detected by the first temperature sensor is greater than or equal to a sixth preset temperature threshold, the heating device 12 is stopped, and the fifth preset temperature threshold is less than the sixth preset temperature threshold.

[0043] Preferably, the controller is electrically connected with the first air door 11 and the second air door 12, and when the heating device 12 starts to heat, the controller controls the first air door 11 and the second air door 12 to be closed, so as to reduce the energy waste caused by heat transfer into the air duct 5.

[0044] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle refrigerator characterized by comprising: The application relates to a refrigerator for a vehicle, which comprises a shell (1) provided with a storage cavity (2) and a refrigeration cavity (3) in the shell (1), the refrigeration cavity (3) is thermally coupled with a thermal management system of the vehicle, a wind channel (5) is arranged between the storage cavity (2) and the refrigeration cavity (3), an air inlet (6) and an air outlet (7) are arranged on the inner wall of the wind channel (5) and communicate with the storage cavity (2) and the wind channel (5), the storage cavity (2) and the refrigeration cavity (3) are thermally coupled through the wind channel (5), and a heating device (12) is arranged in the storage cavity (2).

2. The vehicle refrigerator according to claim 1, characterized by: The refrigeration cavity (3) is provided with phase change heat storage material (4).

3. The vehicle refrigerator according to claim 2, characterized by: The wind channel (5) is provided with air-cooled fins (8), one part of the air-cooled fins (8) is in contact with the phase change heat storage material (4), and the other part of the air-cooled fins (8) is located in the wind channel (5).

4. The vehicle refrigerator according to claim 3, characterized by: The air-cooled fins (8) are provided with heating wires.

5. The in-vehicle refrigerator of claim 1, wherein: The wind channel (5) is provided with a fan (9), the fan (9) circulates and circulates the air in the wind channel (5) and the storage cavity (2).

6. The in-vehicle refrigerator of claim 1, wherein: The air inlet (6) is provided with a first air door (10) which can open or close the air inlet (6), and the air outlet (7) is provided with a second air door (11) which can open or close the air outlet (7).

7. The vehicle refrigerator according to claim 6, characterized by: At least one of the first air door (10) and the second air door (11) is an electronic air door.

8. The vehicle refrigerator according to any one of claims 1 to 7, characterized by: The shell (1) is a double-layer shell, the double-layer shell is provided with heat preservation material, or the double-layer shell is a vacuum environment.

9. The vehicle refrigerator according to any one of claims 1 to 7, characterized by: The bottom of the storage cavity (2) is provided with a drainage pipeline.

10. The vehicle refrigerator according to any one of claims 1 to 7, characterized by: The storage cavity (2) is provided with a first temperature sensor, and the refrigeration cavity (3) is provided with a second temperature sensor.

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