Refrigerating system of double-compressor vehicle-mounted refrigerator

Abstract

The utility model belongs to the technical field of refrigeration equipment, and relates to a refrigeration system of a double-compressor vehicle-mounted refrigerator, which comprises a first refrigeration system used for cooling a freezing chamber and a second refrigeration system used for cooling a refrigerating chamber, the first refrigeration system comprises a first compressor, a first condenser and a first evaporator, and the second refrigeration system comprises a second compressor and a second condenser. The second refrigerating system comprises a second compressor, a second condenser and a second evaporator, and a plurality of cooling capacity circulating fans are further arranged at the position, corresponding to the second evaporator, in the refrigerating chamber. The two sets of compressor refrigerating systems are arranged in the refrigerator body and independently refrigerate the freezing chamber and the refrigerating chamber respectively, so that continuous and stable refrigerating effect can be achieved, ideal refrigerating temperature can be quickly achieved in a shorter time, and the refrigerator has the advantages of being simple in structure, convenient to operate, high in refrigerating efficiency, low in cost and the like. And energy is saved and consumption is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of refrigeration equipment technology, specifically relating to a refrigeration system for a dual-compressor vehicle refrigerator. Background Technology

[0002] In theory, compressor-operated car refrigerators can reach a cooling temperature of -20℃. Due to customer demand, most high-end car refrigerators currently available are equipped with one freezer compartment and one refrigerator compartment. Furthermore, due to limitations such as the overall size of the product, most car refrigerators only have one compressor system. According to conventional control logic, the compressor system alternates between cooling the freezer and refrigerator compartments, typically for ten minutes at a time, until both reach the preset temperature. However, this alternating cooling by the compressor system prolongs the time it takes for the freezer and refrigerator compartments to reach the preset temperature. This is because during the period when cooling is stopped, the cold energy in the freezer compartment is not only absorbed by the food but also slowly dissipated into the surrounding environment. Therefore, in practice, the freezer compartment is unlikely to reach -20℃, thus affecting its freezing performance. Utility Model Content

[0003] The purpose of this invention is to address the defects and shortcomings in the existing technology by designing a dual-compressor vehicle refrigerator refrigeration system that can achieve rapid cooling, improve refrigeration efficiency, and save energy and reduce consumption.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a refrigeration system for a dual-compressor vehicle refrigerator, comprising a first refrigeration system for cooling the freezer compartment and a second refrigeration system for cooling the refrigerator compartment. The first refrigeration system includes a first compressor, a first condenser, and a first evaporator. The second refrigeration system includes a second compressor, a second condenser, and a second evaporator. The refrigerator compartment is also equipped with multiple cooling circulation fans corresponding to the position of the second evaporator.

[0005] Preferably, there are three cooling air circulation fans, and the three cooling air circulation fans are arranged in a horizontal order.

[0006] Preferably, the cooling air circulation fan is provided with a cover on its outer side, and the cover is provided with an air inlet and an air outlet.

[0007] Preferably, the first compressor and the second compressor are arranged side by side, and the first condenser and the second condenser are respectively arranged below the first compressor and the second compressor.

[0008] Preferably, air guide plates are provided on the inner sides of the first condenser and the second condenser.

[0009] Preferably, a first cooling fan and a second cooling fan are respectively provided on the outer side of the first condenser and the second condenser.

[0010] Preferably, it also includes a main control board, which is connected to the first refrigeration system, the second refrigeration system and the cooling capacity circulation fan.

[0011] After adopting the above technical solution, the refrigeration system of the dual-compressor vehicle refrigerator provided by this utility model has the following beneficial effects:

[0012] This invention features two independent compressor refrigeration systems within the refrigerator compartment, one for the freezer and one for the refrigerator. This design achieves continuous and stable cooling, quickly reaching the desired temperature. The cold air circulation fan design enables forced convection between the air inside the refrigerator compartment and the second evaporator, further enhancing the cooling effect. The design of the air guide plate and cooling fan ensures efficient heat dissipation. Therefore, this invention offers advantages such as simple structure, convenient operation, high cooling efficiency, and energy saving. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted refrigerator using the refrigeration system of this utility model;

[0014] Figure 2 This is a schematic diagram of the rear structure of a vehicle-mounted refrigerator using the refrigeration system of this utility model.

[0015] The components include: freezer compartment 1, refrigerator compartment 2, first compressor 3, first condenser 4, first evaporator 5, second compressor 6, second condenser 7, second evaporator 8, cooling circulation fan 9, cover 10, air guide plate 11, first cooling fan 12, second cooling fan 13, and main control board 14. Detailed Implementation

[0016] The present invention will now be described in further clear and complete detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0018] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0019] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0020] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0021] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0022] This utility model discloses a refrigeration system for a dual-compressor vehicle refrigerator, used in vehicle refrigerators, such as... Figure 1-2 As shown, the system includes a first refrigeration system for cooling the freezer compartment 1 and a second refrigeration system for cooling the refrigerator compartment 2. The freezer compartment 1 is located above the refrigerator compartment 2. The first refrigeration system includes a first compressor 3, a first condenser 4, and a first evaporator 5. The second refrigeration system includes a second compressor 6, a second condenser 7, and a second evaporator 8. A plurality of cooling air circulation fans 9 are also provided in the refrigerator compartment 2 corresponding to the position of the second evaporator 8. Specifically, there are three cooling air circulation fans 9 arranged horizontally in sequence. A cover 10 is provided on the outside of each cooling air circulation fan 9, and an air inlet and an air outlet are provided on the cover 10. This design enables forced convection between the air in the refrigerator compartment 2 and the second evaporator 8, improving the cooling effect of the refrigerator compartment 2.

[0023] The first compressor 3 and the second compressor 6 are arranged side by side and located at the lower rear side of the refrigerator body. The first condenser 4 and the second condenser 7 are respectively connected below the first compressor 3 and the second compressor 6. The first evaporator 5 and the second evaporator 8 are respectively connected above the first compressor 3 and the second compressor 6. Specifically, the inner side of the first condenser 4 and the second condenser 7 is provided with a guide plate 11, and the outer side of the first condenser 4 and the second condenser 7 is respectively provided with a first cooling fan 12 and a second cooling fan 13. This design can ensure heat dissipation effect and improve heat dissipation efficiency.

[0024] Furthermore, it also includes a main control board 14, which is located at the top of the refrigerator body. The main control board 14 is connected to the first refrigeration system, the second refrigeration system, and the cooling circulation fan 9. Multiple refrigeration modes of the refrigerator can be selected via buttons on the main control board 14, as follows:

[0025] Under normal operating conditions, both the first and second compressors in the freezer / refrigeration compartments run at 3000 rpm;

[0026] When the sleep mode button is pressed, the first / second compressor in the freezer / refrigerator compartment immediately switches to the lowest speed of 2300 rpm, and the internal cooling circulation fan in the refrigerator compartment stops running, and the air circulation indicator light turns off;

[0027] When the Fast Frost button is pressed alone, the first compressor in the freezer compartment runs at a maximum speed of 4500 rpm; if the refrigerator was previously in sleep mode, it will exit sleep mode at this time, the sleep mode indicator light will turn off, and the refrigerator compartment will return to normal operation (i.e., the second compressor runs at 3000 rpm).

[0028] When the Fast Cooling button is pressed, the second compressor in the refrigerator compartment runs at its maximum speed of 4500 rpm and turns on the internal cooling circulation fan in the refrigerator compartment, and the fan circulation indicator light illuminates. If the refrigerator was previously in sleep mode, it will exit sleep mode at this time, the sleep mode indicator light will turn off, and the freezer compartment will return to normal operation (i.e., the first compressor runs at 3000 rpm).

[0029] When the air circulation button is pressed, the air circulation indicator light illuminates and the air circulation fan starts running. Pressing it again stops the air circulation fan and turns off the air circulation indicator light. If the refrigerator was previously in sleep mode, pressing this button will automatically exit sleep mode and switch to normal mode, turning on the air circulation fan in the refrigerator compartment. However, when the refrigerator compartment door is opened, the air circulation fan must stop running regardless of whether it is currently running. When the refrigerator compartment door is closed, the air circulation fan returns to its operating state before the refrigerator compartment door was opened.

[0030] In summary, the refrigeration system of the dual-compressor vehicle refrigerator provided by this utility model, by setting two sets of compressor refrigeration systems inside the refrigerator body, with each set of compressor refrigeration systems independently refrigerating the freezer compartment and the refrigerator compartment respectively, can achieve a continuous and stable refrigeration effect and quickly reach the ideal refrigeration temperature in a shorter time. It has the advantages of simple structure, convenient operation, high refrigeration efficiency, energy saving and consumption reduction, and has great market value, and is worthy of widespread promotion and application.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A refrigeration system for a dual-compressor vehicle-mounted refrigerator, characterized in that: The system includes a first refrigeration system for cooling the freezer compartment (1) and a second refrigeration system for cooling the refrigerator compartment (2). The first refrigeration system includes a first compressor (3), a first condenser (4) and a first evaporator (5). The second refrigeration system includes a second compressor (6), a second condenser (7) and a second evaporator (8). The refrigerator compartment (2) is also equipped with multiple cooling circulation fans (9) at the position corresponding to the second evaporator (8).

2. The refrigeration system of a dual-compressor vehicle refrigerator according to claim 1, characterized in that: There are three cooling air circulation fans (9), and the three cooling air circulation fans (9) are arranged in a horizontal direction.

3. The refrigeration system of a dual-compressor vehicle refrigerator according to claim 1, characterized in that: The cooling circulating fan (9) is provided with a cover (10) on the outside, and the cover (10) is provided with an air inlet and an air outlet.

4. The refrigeration system of a dual-compressor vehicle refrigerator according to claim 1, characterized in that: The first compressor (3) and the second compressor (6) are arranged side by side, and the first condenser (4) and the second condenser (7) are respectively arranged below the first compressor (3) and the second compressor (6).

5. The refrigeration system of a dual-compressor vehicle refrigerator according to claim 1, characterized in that: Air guide plates (11) are provided on the inner side of the first condenser (4) and the second condenser (7).

6. The refrigeration system of a dual-compressor vehicle refrigerator according to claim 1, characterized in that: The first condenser (4) and the second condenser (7) are respectively provided with a first cooling fan (12) and a second cooling fan (13) on their outer sides.

7. The refrigeration system of a dual-compressor vehicle refrigerator according to claim 1, characterized in that: It also includes a main control board (14), which is connected to the first refrigeration system, the second refrigeration system and the cooling capacity circulation fan (9) via signals.

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