Refrigerating system of refrigerating equipment and refrigerating equipment

Abstract

The utility model belongs to the technical field related to refrigeration, and particularly relates to a refrigeration system of refrigeration equipment and the refrigeration equipment. The refrigeration circulation loop comprises a main pipeline, a first refrigerant branch, a second refrigerant branch, a first bypass branch and a second bypass branch, the first refrigerant branch, the second refrigerant branch, the first bypass branch and the second bypass branch are communicated with the main pipeline, the first refrigerant branch and the first bypass branch are connected in parallel, the second refrigerant branch and the second bypass branch are connected in parallel, and the first anti-condensation pipe is arranged on the first refrigerant branch. The second anti-condensation pipe is arranged on the second refrigerant branch; the valve body is arranged at the joint of the first refrigerant branch, the first bypass branch, the second refrigerant branch and the second bypass branch, the first inlet of the valve body is selectively connected or disconnected with any one of the first outlet and the second outlet, and the second inlet is selectively connected or disconnected with the second outlet. The independent anti-condensation strategy of the freezing chamber and the cold storage chamber can be achieved under different environment conditions.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration, and more specifically, to a refrigeration system and a refrigeration device of a refrigeration device. Background Art

[0002] At present, in order to reduce the overall heat load of the system, most refrigeration devices only set anti-condensation pipes at the door frames of the freezing compartments, and the refrigerated compartments are not provided with them. However, under high-temperature and high-humidity environmental conditions, condensation may also occur in the refrigerated compartments of refrigeration devices. However, due to the large temperature difference between the freezing compartment and the refrigerated compartment, the risk of condensation in the same environment is inconsistent. Therefore, if the anti-condensation pipe of the freezing compartment is directly extended to the refrigerated compartment, the excess heat of the anti-condensation pipe in a medium- and low-humidity environment may enter the refrigerated compartment, increasing the operating energy consumption of the refrigeration device. At the same time, in some dry environmental conditions, condensation does not occur at the door frames of the freezing compartments even without anti-condensation pipes. At this time, the anti-condensation pipes will also increase the heat load of the refrigeration device, resulting in an increase in operating energy consumption. Summary of the Utility Model

[0003] The purpose of the present application is to provide a refrigeration system, a refrigeration device and a control method thereof for a refrigeration device, which can implement the anti-condensation strategies of the freezing compartment and the refrigerated compartment respectively under different environmental conditions, with independent control and no mutual influence, and can avoid extra heat entering the compartments to the greatest extent, reducing the refrigeration operation energy consumption of the system.

[0004] In a first aspect, an embodiment of the present application provides a refrigeration system of a refrigeration device, including: a refrigeration component; a first anti-condensation pipe and a second anti-condensation pipe; a refrigeration cycle loop, the refrigeration component is arranged in the refrigeration cycle loop, the refrigeration cycle loop includes a main pipeline and a first refrigerant branch, a second refrigerant branch, a first bypass branch and a second bypass branch respectively communicated with the main pipeline, the first refrigerant branch is in parallel with the first bypass branch, the second refrigerant branch is in parallel with the second bypass branch, the first anti-condensation pipe is arranged on the first refrigerant branch, and the second anti-condensation pipe is arranged on the second refrigerant branch; and a valve body, including a first inlet, a second inlet, a first outlet and a second outlet, the first inlet is communicated with the first refrigerant branch, the second inlet is communicated with the first bypass branch, the first outlet is communicated with the second refrigerant branch, and the second outlet is communicated with the second bypass branch, wherein the first inlet is selectively conducted or disconnected with any one of the first outlet and the second outlet, and the second inlet is selectively conducted or disconnected with the second outlet.

[0005] According to the refrigeration system of the refrigeration equipment and the refrigeration equipment provided by the embodiments of the present application, by arranging the first anti-condensation pipe in the first refrigerant branch and the second anti-condensation pipe in the second refrigerant branch, at the same time, the first refrigerant branch is connected in parallel with the first bypass branch, and the second refrigerant branch is connected in parallel with the second bypass branch. A two-in-two-out valve body is arranged at the connection of the first refrigerant branch, the second refrigerant branch, the first bypass branch and the second bypass branch, and the valve body is configured to control the first refrigerant branch to be selectively connected with the second refrigerant branch or the second bypass branch, and to control the first bypass branch to be connected with the second bypass branch. Therefore, the operating state of the refrigeration equipment can be dynamically adjusted according to the changes of different environmental conditions, and the anti-condensation strategies of the freezer compartment and the refrigerator compartment can be realized. The two are independently controlled and do not affect each other, so as to avoid additional heat entering the compartment to the greatest extent and reduce the energy consumption of the system during refrigeration operation.

[0006] In addition, the refrigeration system according to the present application may further have the following additional technical features:

[0007] In some embodiments of the present application, the valve body includes a valve seat and a valve block arranged coaxially. The end face of the valve seat is provided with a first inlet, a second inlet, a first outlet and a second outlet which are circumferentially spaced apart. The first inlet and the second inlet are opened on a circle with the central axis of the valve seat as the center and a first length as the radius, and the first outlet and the second outlet are opened on a circle with the central axis of the valve seat as the center and a second length as the radius, and the first length is greater than the second length; the valve block includes a connecting portion and a first notch and a second notch arranged on the connecting portion. The connecting portion fits with the end face of the valve seat and can rotate relative to the valve seat so that the first notch can selectively communicate with any one of the first inlet and the second inlet, and the second notch can selectively communicate with any one of the first outlet and the second outlet.

[0008] In some embodiments of the present application, the valve body includes a valve seat, a valve core assembly and an actuating assembly. The first inlet, the second inlet, the first outlet and the second outlet are arranged on the valve seat. A first flow channel, a second flow channel and a third flow channel are arranged in the valve seat. The first flow channel connects the first inlet and the first outlet, the second flow channel connects the first inlet and the second outlet, and the third flow channel connects the second inlet and the second outlet. Valve ports are respectively formed on the first flow channel, the second flow channel and the third flow channel. The valve ports are correspondingly matched with the valve core assembly. The valve core assembly is movably arranged in the valve seat, and the actuating assembly is used to actuate the valve core assembly so that the first inlet can be selectively connected with the first outlet or the second outlet, and the second inlet is connected with the second outlet.

[0009] In some embodiments of the present application, the actuating assembly includes an actuating member and an elastic member. The spool valve assembly includes a spool valve rod that is movably disposed through the valve seat along its own axis. The elastic member is connected between the valve seat and the spool valve rod to provide an elastic force for opening the valve port by the spool valve rod. The actuating member acts on the spool valve rod so that the spool valve rod can gradually block the valve port against the elastic force.

[0010] In some embodiments of the present application, the central axis of the first inlet is parallel to the central axis of the second inlet, the central axis of the first outlet is parallel to the central axis of the second outlet, the central axis of the first inlet is perpendicular to the central axis of the first outlet, and the first inlet, the first outlet, the second inlet, and the second outlet are respectively formed on different sides of the valve seat.

[0011] In some embodiments of the present application, the refrigeration assembly includes a compressor, a condenser, an evaporator, and a throttling element. Among them, the compressor, the condenser, the evaporator, and the throttling element are disposed in the main pipeline, and the evaporator is located between the throttling element and the inlet of the compressor; the first inlet of the valve body is communicated with the outlet of the first anti-condensation pipe, the first outlet is communicated with the inlet of the second anti-condensation pipe, the second inlet is communicated with the outlet of the condenser, and the second outlet is communicated with the inlet of the throttling element.

[0012] In a second aspect, an embodiment of the present application provides a refrigeration device, including a box body, a freezing compartment and a refrigerating compartment are arranged in the box body; the refrigeration system of the refrigeration device according to the embodiment of the present application, the first anti-condensation pipe of the refrigeration system is arranged in the freezing compartment, and the second anti-condensation pipe is arranged in the refrigerating compartment.

[0013] In some embodiments of the present application, the refrigeration device further includes a controller, which is electrically connected to the valve body of the refrigeration system and is used to control the operation of the valve body according to the operating conditions of the refrigeration device.

[0014] In some embodiments of the present application, the refrigeration device further includes a sensor assembly, which is electrically connected to the controller and is used to detect the environmental information of the refrigeration device. Among them, the controller calculates the condensation temperature and the condensation temperature threshold of the freezing compartment and the refrigerating compartment respectively based on the environmental information to determine the operating conditions of the refrigeration device.

[0015] In some embodiments of the present application, the sensor assembly includes a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor, and an environmental temperature and humidity sensor. The first temperature sensor is disposed on the first refrigerant branch of the refrigeration system and upstream of the first anti-condensation tube for detecting the temperature of the door frame of the freezer compartment; the second temperature sensor is disposed between the second anti-condensation tube and the valve body of the second refrigerant branch of the refrigeration system for detecting the temperature of the door frame of the refrigerated compartment; the third temperature sensor is used for detecting the temperature of the freezer compartment; the fourth temperature sensor is used for detecting the temperature of the refrigerated compartment; and the environmental temperature and humidity sensor is used for detecting the environmental temperature and relative humidity around the refrigeration equipment.

[0016] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specific embodiments of the present application are specifically exemplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. Among them:

[0018] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. Among them:

[0019] Figure 1 is a schematic structural diagram of a refrigeration system of a refrigeration device according to an embodiment of the present application;

[0020] Figure 2 is Figure 1 an exploded structural diagram of a valve body in the refrigeration system shown;

[0021] Figure 3 is Figure 1 a structural diagram of another valve body in the refrigeration system shown along an angle;

[0022] Figure 4 is Figure 1 a structural diagram of another valve body in the refrigeration system shown along another angle;

[0023] Figure 5 is a schematic diagram of a control strategy of a refrigeration device according to an embodiment of the present application;

[0024] Figure 6 The structural schematic diagram of a refrigeration device according to an embodiment of the present application.

[0025] The reference numerals in the accompanying drawings are represented as follows:

[0026] 1, refrigeration assembly; 11, compressor; 12, condenser; 13, evaporator; 14, throttling element; 2, first anti-condensation tube; 3, second anti-condensation tube;

[0027] 4, refrigeration cycle loop; 40, main pipeline; 41, first refrigerant branch; 42, second refrigerant branch; 43, first bypass branch; 44, second bypass branch;

[0028] 5, valve body; 51, first inlet; 52, second inlet; 53, first outlet; 54, second outlet; 55, valve seat; 56, spool assembly; 561, spool rod; 562, blocking portion; 57, actuation assembly; 571, actuator; 572, elastic member; 58, fluid distribution body; 580, valve port; 581, first accommodation cavity; 582, second accommodation cavity;

[0029] 59, valve block; 590, connecting portion; 591, first notch; 592, second notch;

[0030] 61, first temperature sensor; 62, second temperature sensor;

[0031] 100, refrigeration device; 101, refrigerated compartment; 102, frozen compartment; 10, refrigeration system. Detailed implementation manners

[0032] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be completely conveyed to those skilled in the art.

[0033] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0034] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms when used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0035] For ease of description, spatial relative relationship terms may be used herein to describe the relationship of one element or feature shown in the figures to another element or feature, such as "inner", "outer", "inner side", "outer side", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" another element or feature will then be oriented "above" or "over" the other element or feature. Thus, the example term "below" can include both the upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are interpreted accordingly.

[0036] Figure 1 It is a schematic structural diagram of a refrigeration system of a refrigeration device according to an embodiment of the present application. As Figure 1 shown, the refrigeration system 10 of the refrigeration device includes: a refrigeration assembly 1, a first anti-condensation pipe 2, a second anti-condensation pipe 3, a refrigeration cycle circuit 4, and a valve body 5.

[0037] The first anti-condensation tube 2 is arranged in the freezing compartment of the refrigeration equipment. More specifically, the first anti-condensation tube 2 is arranged in the sandwich layer of the door frame of the freezing compartment. The second anti-condensation tube 3 is arranged in the refrigerating compartment of the refrigeration equipment. More specifically, the second anti-condensation tube 3 is arranged in the sandwich layer of the door frame of the refrigerating compartment. Both the first anti-condensation tube 2 and the second anti-condensation tube 3 can be plastic pipe bodies, which are used to circulate refrigerants and other refrigerants, have high corrosion resistance, and extend the service life.

[0038] The refrigeration component 1 is arranged in the refrigeration cycle circuit 4. The refrigeration cycle circuit 4 includes a main pipeline 40 and a first refrigerant branch 41, a second refrigerant branch 42, a first bypass branch 43 and a second bypass branch 44 that are respectively communicated with the main pipeline 40. The first refrigerant branch 41 and the first bypass branch 43 are in parallel, the second refrigerant branch 42 and the second bypass branch 44 are in parallel, the first anti-condensation tube 2 is arranged on the first refrigerant branch 41, and the second anti-condensation tube 3 is arranged on the second refrigerant branch 42.

[0039] The valve body 5 includes a first inlet 51, a second inlet 52, a first outlet 53 and a second outlet 54. The first inlet 51 is communicated with the first refrigerant branch 41, the second inlet 52 is communicated with the first bypass branch 43, the first outlet 53 is communicated with the second refrigerant branch 42, and the second outlet 54 is communicated with the second bypass branch 44. The first inlet 51 is selectively conducted or disconnected from any one of the first outlet 53 and the second outlet 54, and the second inlet 52 is selectively conducted or disconnected from the second outlet 54.

[0040] In this embodiment, the first anti-condensation tube 2 is arranged in the sandwich layer of the door frame of the freezing compartment, the second anti-condensation tube 3 is arranged in the sandwich layer of the door frame of the refrigerating compartment. At the same time, the first anti-condensation tube 2 is arranged on the first refrigerant branch 41, and the first refrigerant branch 41 and the first bypass branch 43 are in parallel. The second anti-condensation tube 3 is arranged on the second refrigerant branch 42, and the second refrigerant branch 42 and the second bypass branch 44 are in parallel. By controlling the flow direction of the refrigerant in the refrigeration cycle circuit 4 through the valve body 5, according to the preset condensation thresholds of the refrigerating compartment and the freezing compartment, the independent control of the anti-condensation operating state of the refrigerating compartment and the freezing compartment without mutual influence under different environmental conditions can be realized.

[0041] Specifically, the valve body 5 is a two-inlet and two-outlet reversing valve. Under high-temperature and high-humidity environmental conditions, the door frames of the refrigerated compartment and the frozen compartment of the refrigeration equipment need to be dehumidified. At this time, opening the first inlet 51 and the first outlet 53 of the valve body 5 allows the refrigerant to pass through the first anti-condensation tube 2 of the first refrigerant branch 41 and the second anti-condensation tube 3 of the second refrigerant branch 42 for dehumidification. At the same time, closing the second inlet 52 and the second outlet 54 prevents the refrigerant from passing through the first bypass branch 43 and the second bypass branch 44, reducing the heat load of the refrigeration equipment and lowering the operating energy consumption. Under some dry environmental conditions, the door frames of the refrigerated compartment and the frozen compartment of the refrigeration equipment do not need to be dehumidified. At this time, closing the first inlet 51 and the first outlet 53 of the valve body 5 prevents the refrigerant from passing through the first anti-condensation tube 2 of the first refrigerant branch 41 and the second anti-condensation tube 3 of the second refrigerant branch 42. At the same time, opening the second inlet 52 and the second outlet 54 allows the refrigerant to pass through the first bypass branch 43 and the second bypass branch 44 to prevent additional heat from entering the refrigerated compartment and the frozen compartment, achieving energy-saving operation. Under medium and low humidity conditions, only the door frame of the frozen compartment may have condensation, and the refrigerated compartment will not have condensation. At this time, closing the second inlet 52 and the first outlet 53 of the valve body 5, and opening the first inlet 51 and the second outlet 54 at the same time allows the refrigerant to enter the second bypass branch 44 through the first refrigerant branch 41 for dehumidification of the frozen compartment, while the first bypass branch 43, the second refrigerant branch 42, and the refrigerant cannot pass through, preventing additional heat from entering the refrigerated compartment. In this way, the operating state of the refrigeration equipment can be dynamically adjusted according to changes in different environmental conditions, thereby avoiding additional heat from entering each compartment to the greatest extent and achieving optimal energy saving.

[0042] The refrigeration system 10 of the refrigeration equipment provided by the embodiment of the present application, by arranging the first anti-condensation tube 2 in the first refrigerant branch 41 and the second anti-condensation tube 3 in the second refrigerant branch 42. At the same time, the first refrigerant branch 41 is connected in parallel with the first bypass branch 43, and the second refrigerant branch 42 is connected in parallel with the second bypass branch 44. A two-inlet and two-outlet valve body 5 is arranged at the connection of the first refrigerant branch 41, the second refrigerant branch 42, the first bypass branch 43, and the second bypass branch 44, and the valve body 5 is configured to control the first refrigerant branch 41 to selectively communicate with the second refrigerant branch 42 or the second bypass branch 44, and control the first bypass branch 43 to communicate with the second bypass branch 44, so as to dynamically adjust the operating state of the refrigeration equipment according to changes in different environmental conditions, realize the anti-condensation strategies of the frozen compartment and the refrigerated compartment respectively, and the two are independently controlled without affecting each other, avoiding additional heat from entering the compartment to the greatest extent and reducing the system refrigeration operating energy consumption.

[0043] Figure 2 For Figure 1 Schematic exploded view of a valve body in the refrigeration system shown.

[0044] In some embodiments, the valve body 5 includes a valve seat 55 and a valve block 59 arranged coaxially. The end face of the valve seat 55 is provided with a first inlet 51, a second inlet 52, a first outlet 53, and a second outlet 54 that are circumferentially spaced apart. The first inlet 51 and the second inlet 52 are opened on a circumference centered on the central axis of the valve seat 55 and having a first length as the radius. The first outlet 53 and the second outlet 54 are opened on a circumference centered on the central axis of the valve seat 55 and having a second length as the radius, and the first length is greater than the second length. The valve block 59 includes a connecting portion 590 and a first notch 591 and a second notch 592 provided on the connecting portion 590. The connecting portion 590 is in contact with the end face of the valve seat 55 and can rotate relative to the valve seat 55 so that the first notch 591 can selectively communicate with any one of the first inlet 51 and the second inlet 52, and the second notch 592 can selectively communicate with any one of the first outlet 53 and the second outlet 54.

[0045] Refer to Figure 2 , the end face of the valve seat 55 is a flat mating surface, and the valve block 59 can be in contact with the end face of the valve seat 55 and perform a rotational movement at a certain angle. The end face of the valve seat 55 is provided with a first inlet 51, a second inlet 52, a first outlet 53, and a second outlet 54 that are circumferentially spaced apart, and are opened on circumferences centered on the central axis of the valve seat 55 and having different lengths as the radii, and are separated by a certain distance. The valve body 5 further includes a first inlet pipe, a second inlet pipe, a first outlet pipe, and a second outlet pipe fixedly connected to the valve seat 55. The first inlet pipe communicates with the first inlet 51, the second inlet pipe communicates with the second inlet 52, the first outlet pipe communicates with the first outlet 53, and the second outlet pipe communicates with the second outlet 54. The first inlet pipe, the second inlet pipe, the first outlet pipe, and the second outlet pipe are respectively connected to the refrigeration cycle circuit 3 to meet the requirements of the refrigeration system 10. In addition, the angles of the first inlet 51, the second inlet 52, the first outlet 53, and the second outlet 54 in the circumferential direction can be adjusted according to the usage requirements to meet various different refrigeration requirements.

[0046] The valve body 5 may further include a control unit and a motor (not shown in the figure). The control unit controls the rotor of the motor to drive the valve block 59 to rotate relative to the valve seat 55. The connecting portion 590 of the valve block 59 is used for rotational cooperation with the end face of the valve seat 55. When the first notch 591 of the connecting portion 590 rotates to correspond to the first inlet 51, the first inlet 51 is in a conducting state. When the first notch 591 of the connecting portion 590 rotates to correspond to the second inlet 52, the second inlet 52 is in a conducting state. When the first inlet 51 is in a conducting state, if the second notch 592 corresponds to any one of the first outlet 53 and the second outlet 54, the corresponding flow channel can be conducted. For example, the first inlet 51 is conducted with any one of the first outlet 53 and the second outlet 54. When the second inlet 52 is in a conducting state, the second inlet 52 is only conducted with the second outlet 54 and not with the first outlet 53. When the remaining portion of the connecting portion 590 other than the first notch 591 and the second notch 592 covers the first outlet 53 and the second outlet 54, the first outlet 53 and the second outlet 54 are respectively in a closed state.

[0047] It can be understood that the valve body 5 may also have other structural forms, as long as the on-off function of two inlets and two outlets can be achieved, and no limitation is made here.

[0048] In some embodiments, the valve body 5 includes a valve seat 55, a valve core assembly 56, and an actuating assembly 57. The first inlet 51, the second inlet 52, the first outlet 53, and the second outlet 54 are provided on the valve seat 55. A first flow channel, a second flow channel, and a third flow channel are provided in the valve seat 55. The first flow channel connects the first inlet 51 and the first outlet 53. The second flow channel connects the first inlet 51 and the second outlet 54. The third flow channel connects the second inlet 52 and the second outlet 54. Valve ports 580 are respectively formed in the first flow channel, the second flow channel, and the third flow channel. The valve ports 580 correspond to and cooperate with the valve core assembly 56. The valve core assembly 56 is movably arranged in the valve seat 55. The actuating assembly 57 is used to actuate the valve core assembly 56 so that the first inlet 51 can be selectively connected to or disconnected from the first outlet 53 or the second outlet 54, and the second inlet 52 can be connected to or disconnected from the second outlet 54.

[0049] In addition, a fluid distributor 58 is provided on the valve seat 55. A first receiving cavity 581 and a second receiving cavity 582 are formed on the fluid distributor 58. The first receiving cavity 581 is always connected to the first inlet 51 and the first outlet 53 on the first flow channel where it is located. The second receiving cavity 582 is always connected to the second inlet 52 and the second outlet 54 on the third flow channel where it is located. The first receiving cavity 581 and the second receiving cavity 582 are connected through the second flow channel so that the first inlet 51 is connected to the second outlet 54.

[0050] Figure 3 For Figure 1Schematic structural diagram of another valve body in the shown refrigeration system along an angle; Figure 3 is Figure 1 Schematic structural diagram of another valve body in the shown refrigeration system along another angle. As Figure 2 and Figure 3 shown, the valve seat 55 of the valve body 5 has three flow channels and four groups of valve core assemblies 56. Taking the first flow channel shown by the dashed line in Figure 2 as an example, a valve port 580 cooperating with the valve core assembly 56 is formed on the first flow channel. The valve port 580 cooperates with the valve core assembly 56 correspondingly to control the connection or cut-off of the first flow channel where the valve port 580 is located through the valve core assembly 56. Valve ports 580 cooperating with the valve core assembly 56 are respectively formed on the second flow channel and the third flow channel. The valve core assembly 56 is movably arranged in the valve seat 55, and the actuating assembly 57 is used to actuate the valve core assembly 56, so that the first inlet 51 can be selectively communicated with the first outlet 53 or the second outlet 54, and the second inlet 52 is communicated with the second outlet 54. Under the action of the actuating assembly 57, the valve core assembly 56 blocks the valve port 580 or separates from the valve port 580, so that the inlet and outlet on this flow channel are cut off or communicated. For example, the first inlet 51 can be communicated with the first outlet 53 or the second outlet 54, and the second inlet 52 can be communicated with the second outlet 54, realizing the function of switching the refrigerant flow direction.

[0051] In some embodiments, the actuating assembly 57 includes an actuating member 571 and an elastic member 572. The valve core assembly 56 includes a valve core rod 561 movably penetrating through the valve seat 55 along its own axis direction. The elastic member 572 is connected between the valve seat 55 and the valve core rod 561 to provide an elastic force for opening the valve port 580 by the valve core rod 561. The actuating member 571 acts on the valve core rod 561 so that the valve core rod 561 can overcome the elastic force and gradually block the valve port 580.

[0052] Optionally, the valve core rod 561 includes a blocking portion 562 for blocking the valve port 580, and the elastic member 572 passes through the valve port 580 and abuts between the blocking portion 562 and the valve seat 55. The elastic member 572 can be a compression spring, or an ordinary spring, an elastic rubber member, an elastic silica gel member, a spring piece or other elastic mechanisms.

[0053] The valve core rod 561 seals the valve port 580 downward and separates from the valve port 580 upward. Acting on the valve core rod 561 through the elastic member 572 and the actuating member 571, when it is necessary to close the valve port 580, the actuating member 571 acts on the valve core rod 561 so that the valve core rod 561 approaches the valve port 580 against the elastic force, thereby closing the valve port 580; when it is necessary to open the valve port 580, the actuating member 571 reduces or releases the action on the valve core rod 561. Under the action of the elastic member 572, the valve core rod 561 moves upward, and the sealing portion 562 of the valve core rod 561 gradually leaves the valve port 580, thereby opening the valve port 580.

[0054] In some embodiments, the central axis of the first inlet 51 is arranged parallel to the central axis of the second inlet 52, the central axis of the first outlet 53 is arranged parallel to the central axis of the second outlet 54, the central axis of the first inlet 51 is arranged perpendicular to the central axis of the first outlet 53, and the first inlet 51, the first outlet 53, the second inlet 52, and the second outlet 54 are respectively formed on different side surfaces of the valve seat 55. Such an arrangement is beneficial to the connection between the valve body 5 and the pipeline and avoids interference.

[0055] As described above, the first inlet 51 and the first outlet 53 are connected to form a first flow path, the first inlet 51 and the second outlet 54 are connected to form a second flow path, the second inlet 52 and the second outlet 54 are connected to form a third flow path, and the second inlet 52 and the first outlet 53 are never connected. One valve core rod 561 cooperates with the first flow path, and one valve core rod 561 cooperates with the third flow path. When the actuating member 571 rotates, the moving directions of the valve core rods 561 in the first flow path and the third flow path are different.

[0056] The working process of the valve body 5 is as follows: As Figure 1 and Figure 3 shown, assume that in the initial state, the sealing portion 562 on the valve core rod 561 in the first flow path seals the valve port 580 against the elastic force. At this time, the valve port 580 in the first flow path is closed, and the first inlet 51 and the first outlet 53 are cut off, that is, both the first refrigerant branch 41 and the second refrigerant branch 42 are not connected, and the door frames of the refrigerated compartment and the frozen compartment do not need to be dehumidified; at the same time, under the action of the elastic member 572, the valve core rod 561 in the third flow path moves away from the valve port 580 on the valve core rod 561. At this time, the third flow path is opened, the second inlet 52 and the second outlet 54 are connected, the first bypass branch 43 and the second bypass branch 44 are connected, and the refrigerant flowing into the valve seat 55 through the second inlet 52 will flow out from the second outlet 54, avoiding additional heat from entering the refrigerated compartment and the frozen compartment and realizing energy-saving operation.

[0057] When the actuator 571 rotates clockwise from the initial state, under the action of the elastic member 572, the valve core rod 561 in the first flow channel causes the blocking portion 562 on the valve core rod 561 to open the valve port 580 in the first flow channel. At this time, the first flow channel is opened, and the first inlet 51 is communicated with the first outlet 53, that is, the first refrigerant branch 41 and the second refrigerant branch 42 are communicated, and the door frames of the refrigerating compartment and the freezing compartment both need to remove condensation. At the same time, the blocking portion 562 on the valve core rod 561 in the third flow channel blocks the valve port 580. At this time, the valve port 580 in the third flow channel is closed, and the second inlet 52 is cut off from the second outlet 54. In this way, the switching of the refrigerant flow direction is realized, that is, the communication between the second inlet 52 and the second outlet 54 is switched to the communication between the first inlet 51 and the first outlet 53.

[0058] When the actuator 571 rotates counterclockwise from the initial state, under the action of the elastic member 572, the valve core rod 561 in the second flow channel causes the blocking portion 562 on the valve core rod 561 to open the valve port 580 in the second flow channel. At this time, the second flow channel is opened, and the first inlet 51 is communicated with the second outlet 54, while the second inlet 52 and the first outlet 53 are always not communicated, that is, the first refrigerant branch 41 and the second bypass branch 44 are communicated, and only the door frame of the freezing compartment needs to remove condensation, while the door frame of the refrigerating compartment does not need to remove condensation.

[0059] In some embodiments, the refrigeration assembly 1 includes a compressor 11, a condenser 12, an evaporator 13, and a throttling element 14. Among them, the compressor 11, the condenser 12, the evaporator 13, and the throttling element 14 are arranged in the main pipeline 40, and the evaporator 13 is located between the throttling element 14 and the inlet of the compressor 11; the first inlet 51 of the valve body 5 is communicated with the outlet of the first anti-condensation pipe 2, the first outlet 53 is communicated with the inlet of the second anti-condensation pipe 3, the second inlet 52 is communicated with the outlet of the condenser 12, and the second outlet 54 is communicated with the inlet of the throttling element 14.

[0060] As Figure 1 shown, the refrigeration cycle circuit 4 includes a main pipeline 40, a first refrigerant branch 41, a second refrigerant branch 42, a first bypass branch 43, and a second bypass branch 44. The refrigeration assembly 1 is arranged in the refrigeration cycle circuit 4 to achieve a refrigeration function through the refrigerant. Among them, the first anti-condensation pipe 2 is arranged in the first refrigerant branch 41, the second anti-condensation pipe 3 is arranged in the second refrigerant branch 42, and the valve body 5 is arranged at the connection of the first refrigerant branch 41, the second refrigerant branch 42, the first bypass branch 43, the second bypass branch 44 and the main pipeline 40. The throttling element 14 can be, for example but not limited to, a capillary tube.

[0061] Through the commutation function of the valve body 5, the refrigerant flowing in the refrigeration cycle circuit 4 can include the following three circulation paths: First, under the environmental conditions of high temperature and high humidity, the door frames of the refrigerated compartment and the frozen compartment of the refrigeration equipment need to be dehumidified. The valve body 5 connects the first refrigerant branch 41 and the second refrigerant branch 42 to the main pipeline 40. The refrigerant starts from the outlet of the main pipeline 40, flows through the first refrigerant branch 41 and the second refrigerant branch 42, and then returns to the inlet of the main pipeline 40. When the refrigerant flows through the first anti-condensation pipe 2 and the second anti-condensation pipe 3, it starts to work, and can achieve the purpose of large cooling capacity supply and dehumidification; Second, under dry environmental conditions, the door frames of the refrigerated compartment and the frozen compartment of the refrigeration equipment do not need to be dehumidified. The valve body 5 connects the first bypass branch 43 and the second bypass branch 44 to the main pipeline 40. The refrigerant starts from the outlet of the main pipeline 40, flows through the first bypass branch 43 and the second bypass branch 44, and then returns to the inlet of the main pipeline 40. The first anti-condensation pipe 2 and the second anti-condensation pipe 3 stop working, avoiding the heat of the first anti-condensation pipe 2 and the second anti-condensation pipe 3 being respectively transferred to the frozen compartment and the refrigerated compartment of the refrigeration equipment, and reducing the power consumption of the refrigeration equipment; Third, under medium and low humidity conditions, only the frozen compartment needs to be dehumidified. The valve body 5 connects the first refrigerant branch 41 and the second bypass branch 44 to the main pipeline 40. The refrigerant starts from the outlet of the main pipeline 40, and respectively flows through the first refrigerant branch 41 and the second bypass branch 44 and then returns to the inlet of the main pipeline 40. The first anti-condensation pipe 2 starts to work, and the second anti-condensation pipe 3 stops working, which can reduce the power consumption of the second anti-condensation pipe 3 and reduce the power consumption of the refrigeration equipment.

[0062] That is to say, when the refrigeration equipment operates under the working conditions that require dehumidification, the valve body 5 connects the second refrigerant branch 42 and the first refrigerant branch 41 to the main pipeline 40, or connects the first refrigerant branch 41 and the second bypass branch 44 to the main pipeline 40, so that the frozen compartment and the refrigerated compartment or only the frozen compartment carry out dehumidification work; when the refrigeration equipment operates under the working conditions that do not require dehumidification, the valve body 5 connects the first bypass branch 43 and the second bypass branch 44 to the main pipeline 40, and both the first anti-condensation pipe 2 and the second anti-condensation pipe 3 stop working, thereby reducing the power consumption of the refrigeration equipment and further reducing the power consumption of the refrigeration equipment.

[0063] Figure 5 It is a schematic structural diagram of a refrigeration equipment according to an embodiment of the present application. As Figure 5 shown, an embodiment of the present application further provides a refrigeration equipment 100, including a box body and a refrigeration system 10 of the refrigeration equipment as described above. A refrigerated compartment 101 and a frozen compartment 102 are arranged in the box body. The first anti-condensation pipe 2 is arranged in the frozen compartment 102, and the second anti-condensation pipe 3 is arranged in the refrigerated compartment 101.

[0064] In some embodiments, the refrigeration device further includes a controller, which is electrically connected to the valve body 5 and is configured to control the operation of the valve body 5 according to the operating conditions of the refrigeration device.

[0065] In some embodiments, the refrigeration device further includes a sensor assembly, which is electrically connected to the controller and is configured to detect the environmental information of the refrigeration device. Wherein, the controller calculates the condensation temperature and the condensation temperature threshold of the freezer compartment and the refrigerating compartment respectively based on the environmental information to determine the operating conditions of the refrigeration device.

[0066] After the controller calculates the condensation temperature and the condensation temperature threshold of the freezer compartment and the refrigerating compartment, it controls the valve body 5 to connect the first refrigerant branch 41 and the second refrigerant branch 42 to the main pipeline 40, so that the first anti-condensation pipe 2 and the second anti-condensation pipe 3 enter the working state to ensure the effectiveness of the anti-condensation of the refrigeration device; or the controller controls the valve body 5 to only connect the first refrigerant branch 41 and the second bypass branch 44, so that the second anti-condensation pipe 3 stops working and only the first anti-condensation pipe 2 enters the working state; or the controller controls the valve body 5 to only connect the first bypass branch 43 and the second bypass branch 44, so that both the first anti-condensation pipe 2 and the second anti-condensation pipe 3 stop working. While ensuring the normal operation of the refrigeration device, the power consumption of the first anti-condensation pipe 2 and the second anti-condensation pipe 3 is reduced to achieve the reduction of the power consumption of the refrigeration device.

[0067] In some embodiments, the sensor assembly includes a first temperature sensor 61, a second temperature sensor 62, a third temperature sensor, a fourth temperature sensor and an environmental temperature and humidity sensor. The first temperature sensor 61 is arranged on the first refrigerant branch 41 and is located upstream of the first anti-condensation pipe 2 for detecting the temperature of the door frame of the freezer compartment; the second temperature sensor 62 is arranged between the second anti-condensation pipe 3 of the second refrigerant branch 42 and the valve body 5 for detecting the temperature of the door frame of the refrigerating compartment; the third temperature sensor is used for detecting the temperature of the freezer compartment; the fourth temperature sensor is used for detecting the temperature of the refrigerating compartment; the environmental temperature and humidity sensor is used for detecting the environmental temperature and environmental humidity around the refrigeration device. The controller can determine whether the freezer compartment and the refrigerating compartment need anti-condensation according to the condensation temperature of the freezer compartment and the condensation temperature of the refrigerating compartment.

[0068] In some embodiments, the controller calculates the condensation temperature and the condensation temperature threshold of the freezer compartment according to the environmental temperature, environmental humidity, the temperature of the freezer compartment and the temperature of the door frame of the freezer compartment, and calculates the condensation temperature and the condensation temperature threshold of the refrigerating compartment according to the environmental temperature, environmental humidity, the temperature of the refrigerating compartment and the temperature of the door frame of the refrigerating compartment.

[0069] Figure 4 It is a schematic diagram of the control strategy of the refrigeration device according to the embodiment of the present application. As Figure 4 shown, the control strategy of the refrigeration device provided by the embodiment of the present application is as follows:

[0070] When the temperature of the door frame of the refrigerated compartment is less than or equal to the condensation temperature threshold of the refrigerated compartment and the temperature of the door frame of the freezer compartment is less than or equal to the condensation temperature threshold of the freezer compartment, dew condensation removal is required for both the door frame of the refrigerated compartment and the door frame of the freezer compartment. The first inlet 51 and the first outlet 53 of the valve body 5 are opened, while the second inlet 52 and the second outlet 54 are closed, and the dew condensation prevention operation needs to be immediately run.

[0071] When the temperature of the door frame of the refrigerated compartment is higher than the condensation temperature threshold of the refrigerated compartment, or when the temperature of the door frame of the freezer compartment is higher than the condensation temperature threshold of the freezer compartment, it is regarded as having no dew condensation risk. The second inlet 52 and the second outlet 54 of the valve body 5 are opened, while the first inlet 51 and the first outlet 53 are closed, and the first dew condensation prevention pipe 2 and the second dew condensation prevention pipe 3 do not need to operate.

[0072] When the temperature of the door frame of the freezer compartment is less than or equal to the condensation temperature threshold of the freezer compartment and the temperature of the door frame of the refrigerated compartment is higher than the condensation temperature threshold of the refrigerated compartment, the first inlet 51 and the second outlet 54 of the valve body 5 are opened, while the second inlet 52 and the first outlet 53 are closed. Only the door frame of the freezer compartment needs dew condensation removal, while the door frame of the refrigerated compartment does not need dew condensation removal, and finally a dynamic and precise dew condensation prevention management strategy is realized.

[0073] It should be noted that the condensation temperature thresholds of the refrigerated compartment and the freezer compartment are not fixed values and can vary according to the environmental conditions in different regions and the user's usage scenarios, which will not be elaborated here.

[0074] It can be understood that the refrigeration device 100 provided by the embodiments of the present application can be various refrigeration devices such as refrigerators, freezers, cold storages, refrigerated and frozen trucks, etc.

[0075] The refrigeration device 100 provided by the embodiments of the present application adopts the refrigeration system 10 as described above. By arranging the first dew condensation prevention pipe 2 in the first refrigerant branch 41 and the second dew condensation prevention pipe 3 in the second refrigerant branch 42, at the same time, the first refrigerant branch 41 is connected in parallel with the first bypass branch 43, and the second refrigerant branch 42 is connected in parallel with the second bypass branch 44. A two-in and two-out valve body 5 is provided at the connection of the first refrigerant branch 41, the second refrigerant branch 42, the first bypass branch 43 and the second bypass branch 44, and the valve body 5 is configured to control the first refrigerant branch 41 to selectively communicate with the second refrigerant branch 42 or the second bypass branch 44, and to control the first bypass branch 43 to communicate with the second bypass branch 44. Thus, the operating state of the refrigeration device can be dynamically adjusted according to changes in different environmental conditions, and the dew condensation prevention strategies for the freezer compartment and the refrigerated compartment can be realized. The two are independently controlled and do not affect each other, and extra heat entering the compartment is avoided to the greatest extent, reducing the energy consumption of the system during refrigeration operation.

[0076] As described above, it is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A refrigeration system of a refrigeration device, characterized in that, Comprising: A refrigeration component; A first anti-condensation pipe and a second anti-condensation pipe; A refrigeration cycle circuit, wherein the refrigeration component is disposed in the refrigeration cycle circuit, the refrigeration cycle circuit includes a main pipeline and a first refrigerant branch, a second refrigerant branch, a first bypass branch and a second bypass branch respectively communicating with the main pipeline, the first refrigerant branch is in parallel with the first bypass branch, the second refrigerant branch is in parallel with the second bypass branch, the first anti-condensation pipe is disposed on the first refrigerant branch, and the second anti-condensation pipe is disposed on the second refrigerant branch; and A valve body, including a first inlet, a second inlet, a first outlet and a second outlet, the first inlet communicates with the first refrigerant branch, the second inlet communicates with the first bypass branch, the first outlet communicates with the second refrigerant branch, and the second outlet communicates with the second bypass branch, wherein the first inlet is selectively conducted or disconnected from any one of the first outlet and the second outlet, and the second inlet is selectively conducted or disconnected from the second outlet.

2. The refrigeration system of the refrigeration device according to claim 1, characterized in that, The valve body includes a valve seat and a valve block coaxially arranged, the end face of the valve seat is provided with the first inlet, the second inlet, the first outlet and the second outlet which are circumferentially and spaced apart, the first inlet and the second inlet are opened on a circumference centered on the central axis of the valve seat and with a first length as the radius, the first outlet and the second outlet are opened on a circumference centered on the central axis of the valve seat and with a second length as the radius, and the first length is greater than the second length; The valve block includes a connecting portion and a first notch and a second notch provided on the connecting portion, the connecting portion is attached to the end face of the valve seat and can rotate relative to the valve seat, so that the first notch can selectively communicate with any one of the first inlet and the second inlet, and the second notch can selectively communicate with any one of the first outlet and the second outlet.

3. The refrigeration system of the refrigeration device according to claim 1, characterized in that, The valve body includes a valve seat, a valve core assembly and an actuating assembly, the first inlet, the second inlet, the first outlet and the second outlet are provided on the valve seat, a first flow channel, a second flow channel and a third flow channel are provided in the valve seat, the first flow channel communicates the first inlet with the first outlet, the second flow channel communicates the first inlet with the second outlet, the third flow channel communicates the second inlet with the second outlet, valve ports are respectively formed on the first flow channel, the second flow channel and the third flow channel, the valve ports are correspondingly matched with the valve core assembly, the valve core assembly is movably disposed in the valve seat, and the actuating assembly is used to actuate the valve core assembly so that the first inlet can be selectively communicated with the first outlet or the second outlet, and the second inlet is communicated with the second outlet.

4. The refrigeration system of the refrigeration equipment according to claim 3, characterized in that, The actuating assembly includes an actuating member and an elastic member. The spool valve assembly includes a spool valve rod movably disposed along its own axis and passing through the valve seat. The elastic member is connected between the valve seat and the spool valve rod to provide an elastic force for opening the valve port by the spool valve rod. The actuating member acts on the spool valve rod so that the spool valve rod can gradually block the valve port against the elastic force.

5. The refrigeration system of the refrigeration device according to claim 3, characterized in that, The central axis of the first inlet is parallel to the central axis of the second inlet. The central axis of the first outlet is parallel to the central axis of the second outlet. The central axis of the first inlet is perpendicular to the central axis of the first outlet. The first inlet, the first outlet, the second inlet and the second outlet are respectively formed on different sides of the valve seat.

6. The refrigeration system of the refrigeration device according to claim 1, characterized in that, The refrigeration assembly includes a compressor, a condenser, an evaporator and a throttling element. Among them, the compressor, the condenser, the evaporator and the throttling element are arranged in the main pipeline, and the evaporator is located between the throttling element and the inlet of the compressor. The first inlet of the valve body is communicated with the outlet of the first anti-condensation tube. The first outlet is communicated with the inlet of the second anti-condensation tube. The second inlet is communicated with the outlet of the condenser. The second outlet is communicated with the inlet of the throttling element.

7. A refrigeration device, characterized in that, Comprising: A box body, in which a freezing compartment and a refrigerating compartment are arranged. The refrigeration system of the refrigeration device according to any one of claims 1 to 6, wherein the first anti-condensation tube of the refrigeration system is arranged in the freezing compartment, and the second anti-condensation tube is arranged in the refrigerating compartment.

8. The refrigeration device according to claim 7, characterized in that, The refrigeration device further includes a controller, electrically connected to the valve body of the refrigeration system, and configured to control the operation of the valve body according to the operating conditions of the refrigeration device.

9. The refrigeration device according to claim 8, characterized in that, The refrigeration device further includes a sensor assembly, electrically connected to the controller, and configured to detect the environmental information of the refrigeration device. Among them, the controller calculates the condensation temperature and the condensation temperature threshold of the freezing compartment and the refrigerating compartment respectively based on the environmental information to determine the operating conditions of the refrigeration device.

10. The refrigeration device according to claim 9, characterized in that, The sensor assembly includes a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor and an environmental temperature and humidity sensor. The first temperature sensor is arranged on the first refrigerant branch of the refrigeration system and upstream of the first anti-condensation tube, and is used to detect the temperature of the door frame of the freezing compartment. The second temperature sensor is arranged between the second anti-condensation tube of the second refrigerant branch of the refrigeration system and the valve body, and is used to detect the temperature of the door frame of the refrigerating compartment. The third temperature sensor is used to detect the temperature of the freezing compartment. The fourth temperature sensor is used to detect the temperature of the refrigerating compartment. The environmental temperature and humidity sensor is used to detect the environmental temperature and the relative environmental humidity around the refrigeration device.

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