Single-system refrigeration equipment capable of switching multiple refrigeration modes

Abstract

The invention relates to the technical field of refrigeration equipment, and provides single-system refrigeration equipment capable of switching multiple refrigeration modes, comprising: a first liner having a first storage chamber; the second inner container is provided with a second storage chamber; the first air duct plate, the second air duct plate, the transition air duct plate and the centrifugal fan are configured to suck cold air flow from the refrigeration chamber into the air outlet cavity, and then the cold air flow is fed into the first storage chamber and / or the second storage chamber through the air outlet cavity; an air distribution mechanism is arranged in the first air duct plate; and air distribution of the two storage chambers is regulated and controlled. Therefore, the air volume distribution of the two storage chambers is regulated and controlled through the air volume distribution mechanism, and switching of the refrigeration modes of the two storage chambers or exchange of the refrigeration modes of the two storage chambers is achieved. And in cooperation with rotating speed control of the centrifugal fan, the temperature control range of the two storage chambers can be expanded, and various storage requirements are met. The single-system refrigeration mode switching device is compact in structure, and switching of single-system refrigeration modes is achieved at low cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of refrigeration equipment, and in particular relates to a single-system refrigeration equipment capable of switching between multiple refrigeration modes. Background Art

[0002] Traditional single-system refrigerators usually have storage compartments that are fixed in freezer or refrigerator mode and cannot be switched to refrigeration mode to flexibly meet user needs.

[0003] Currently, dual-temperature variable-temperature refrigerators mostly use a dual-system or dual-fan design. The variable-temperature evaporator and the freezer evaporator are connected in series, and a bistable solenoid valve is connected in series to the variable-temperature evaporator to switch the refrigerant flow direction between the two cooling modes. However, while dual-system or dual-fan mechanisms can achieve variable temperature, they are complex and costly.

[0004] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0005] In view of the above-mentioned defects, the present invention mainly provides a single-system refrigeration device that can switch multiple refrigeration modes, so as to solve the technical problem that the refrigeration mode of a single-system refrigerator is fixed and cannot be flexibly switched.

[0006] In order to solve the above problems, the present invention provides a single-system refrigeration device capable of switching multiple refrigeration modes, comprising:

[0007] a first inner tank having a first storage compartment;

[0008] a second inner tank having a second storage compartment;

[0009] A first air duct plate is disposed inside the first inner container and near the back side thereof; it has a plurality of air outlets for supplying air to the first storage compartment; a refrigeration compartment for mounting an evaporator is further formed between the back side wall of the first inner container and the first air duct plate;

[0010] A second air duct plate is disposed inside the second liner and near the back side thereof, and has a plurality of air distribution ports for supplying air to the second storage compartment;

[0011] a transition air duct plate, connecting the first air duct plate and the second air duct plate;

[0012] a centrifugal fan mounted on the first air duct plate, with its air intake facing the refrigeration compartment; a volute located outside the centrifugal fan is provided within the first air duct plate, with an air outlet cavity formed between the volute and the centrifugal fan;

[0013] The centrifugal fan is configured to: draw cold air from the refrigeration compartment into the air outlet cavity, and then send the cold air from the air outlet cavity into the first storage compartment and / or the second storage compartment;

[0014] An air volume distribution mechanism is provided in the first air duct plate; the air volume distribution mechanism is configured to regulate the air volume distribution between the first storage compartment and the second storage compartment.

[0015] According to the single-system refrigeration device capable of switching between multiple refrigeration modes of the present invention, a controllable damper is provided in the transition air duct plate.

[0016] According to the single-system refrigeration device capable of switching between multiple refrigeration modes of the present invention, an air volume regulating mechanism for regulating the air volume of each air outlet is provided in the second air duct plate.

[0017] According to the single-system refrigeration equipment that can switch between multiple cooling modes of the present invention, the air volume adjustment mechanism includes an adjustment gear that is rotatably arranged in the second air duct plate and a rack rod that is slidably arranged in the second air duct plate and engages with the adjustment gear; a wind shield is provided at the air outlet, and the wind shield is fixed to the rack rod.

[0018] According to the single-system refrigeration equipment capable of switching between multiple refrigeration modes of the present invention, a cover is provided inside the second air duct plate, and the adjustment gear is installed inside the cover; the rack rod can pass through both ends of the cover to connect each windshield.

[0019] According to the single-system refrigeration device capable of switching between multiple refrigeration modes of the present invention, a main air outlet is further provided on the second air duct plate.

[0020] According to the single-system refrigeration device capable of switching multiple cooling modes of the present invention, the air outlet includes a first air outlet, a second air outlet, and a third air outlet; the first air duct plate is provided with a first air supply cavity, a second air supply cavity, and a third air supply cavity connected to the corresponding air outlets; the first air duct plate is further provided with a fourth air supply cavity connected to the transition air duct plate; each air supply cavity is connected to the air outlet cavity;

[0021] The air volume distribution mechanism includes:

[0022] The first retractable plate is disposed between the first air supply cavity and the air outlet cavity; it has an extended state and a retracted state; in the extended state, the first air supply cavity and the air outlet cavity are shut off; in the retracted state, the first air supply cavity and the air outlet cavity are connected;

[0023] A rotating door is rotatably arranged at the opening position of the second air supply chamber; the rotating door closes the second air supply chamber or adjusts the opening of the second air supply chamber by rotating;

[0024] The second and third telescopic plates are both disposed between the third air supply chamber and the air outlet chamber; a gap is provided between the second and third telescopic plates to form a bypass air passage; the bypass air passage is capable of connecting the air outlet chamber with the second or third air supply chamber; the second and third telescopic plates each have an extended state and a retracted state;

[0025] The second and third telescopic plates are simultaneously extended to shut off the third air supply cavity and the air outlet cavity; and both are simultaneously retracted to connect the third air supply cavity and the air outlet cavity.

[0026] The bypass telescopic plate is arranged between the second telescopic plate and the third telescopic plate and has an extended state and a retracted state. In the extended state, the bypass air path is closed; in the retracted state, the bypass air path is opened.

[0027] According to the single-system refrigeration device capable of switching multiple refrigeration modes of the present invention, the first telescopic plate, the second telescopic plate and the third telescopic plate are all fixedly connected to the first drive plate; the bypass telescopic plate is fixedly connected to the second drive plate.

[0028] According to the single-system refrigeration equipment that can switch between multiple refrigeration modes of the present invention, the first drive plate and the second drive plate are respectively connected to a telescopic rod; a control box is also provided on the first air duct plate, and a cylinder for driving the telescopic rod and a motor for driving the rotating door are provided in the control box.

[0029] According to the single-system refrigeration device capable of switching multiple refrigeration modes of the present invention, the refrigeration device is a refrigerator or a freezer.

[0030] In summary, the present invention utilizes an air volume distribution mechanism within the first air duct plate to regulate the air volume distribution between the two storage compartments, enabling switching or interchange of cooling modes between the two storage compartments. Combined with centrifugal fan speed control, this expands the temperature control range of the two storage compartments, meeting diverse storage needs. This compact structure allows for switching cooling modes within a single system at a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 yes Figure 1 Schematic diagram of the back structure;

[0033] Figure 3 yes Figure 2 Schematic diagram of the internal structure;

[0034] Figure 4 yes Figure 3 Structural diagram of the middle A direction;

[0035] Figure 5 yes Figure 2 Schematic diagram of the internal structure;

[0036] Figure 6 is a schematic diagram of the internal structure of the first air duct plate of the present invention;

[0037] Figure 7 yes Figure 6 A schematic diagram of the structure of a local area;

[0038] Figure 8 is a state diagram of a cooling mode of the present invention;

[0039] Figure 9 is a state diagram of a cooling mode of the present invention;

[0040] Figure 10 is a state diagram of a cooling mode of the present invention;

[0041] Figure 11 is a state diagram of a cooling mode of the present invention;

[0042] In the figure: 1-first air outlet, 11-second air outlet, 12-third air outlet; 2-air branch outlet, 21-main air outlet; 3-transition air duct plate, 4-first air duct plate, 41-volute, 42-first air supply chamber, 43-second air supply chamber, 44-third air supply chamber, 45-fourth air supply chamber; 5-second air duct plate, 51-wind shield, 52-adjusting gear, 53-rack rod, 54-cover; 6-centrifugal fan, 7-control box, 71-first telescopic plate, 72-second telescopic plate, 73-third telescopic plate, 74-bypass telescopic plate, 75-rotating door, 76-first drive plate, 77-second drive plate, 78-telescopic rod; 100-first storage compartment, 101-first liner; 200-second storage compartment, 201-second liner. DETAILED DESCRIPTION

[0043] See also Figure 1-3 The present invention provides a single-system refrigeration device capable of switching multiple refrigeration modes, comprising:

[0044] The first inner container 101 has a first storage compartment 100;

[0045] The second inner tank 201 has a second storage compartment 200;

[0046] A first air duct plate 4 is disposed inside the first inner liner 101 and near the back side thereof; it has a plurality of air outlets for supplying air to the first storage compartment 100; a refrigeration compartment for mounting an evaporator is also formed between the back side wall of the first inner liner 101 and the first air duct plate 4;

[0047] The second air duct plate 5 is arranged inside the second inner liner 201 and close to the back side; it has a plurality of air distribution ports 2 for supplying air to the second storage compartment 200;

[0048] A transition air duct plate 3 connecting the first air duct plate 4 and the second air duct plate 5;

[0049] See also Figure 6 and Figure 7 , a centrifugal fan 6 is installed on the first air duct plate 4, with its air intake facing the refrigeration compartment; a volute 41 is provided in the first air duct plate 4 and is located outside the centrifugal fan 6, and an air outlet cavity is formed between the volute 41 and the centrifugal fan 6;

[0050] The centrifugal fan 6 is configured to: suck cold air from the refrigeration compartment into the air outlet cavity, and then send the cold air into the first storage compartment 100 and / or the second storage compartment 200 through the air outlet cavity;

[0051] The first air duct plate 4 is provided with an air volume distribution mechanism; the air volume distribution mechanism is configured to: regulate the air volume distribution between the first storage compartment 100 and the second storage compartment 200;

[0052] The present invention incorporates an air volume distribution mechanism within the first air duct plate 4 to regulate the air volume distribution between the two storage compartments, enabling switching or interchange of cooling modes between the two storage compartments. Combined with speed control of the centrifugal fan 6, this expands the temperature control range of the two storage compartments, meeting diverse storage needs. This compact structure allows for cost-effective switching of cooling modes within a single system.

[0053] As an embodiment, a controllable damper is provided in the transition air duct plate 3 , which can assist in regulating the air volume of the second storage compartment 200 or shut off the connection between the first air duct plate 4 and the second air duct plate 5 .

[0054] See also Figure 6 and Figure 7 As an embodiment, the air outlet includes a first air outlet 1, a second air outlet 11 and a third air outlet 12; the first air duct plate 4 is provided with a first air supply cavity 42, a second air supply cavity 43 and a third air supply cavity 44 connected to the corresponding air outlets; the first air duct plate 4 is further provided with a fourth air supply cavity 45 connected to the transition air duct plate 3; each air supply cavity is connected to the air outlet cavity;

[0055] The air volume distribution mechanism includes:

[0056] The first retractable plate 71 is disposed between the first air supply cavity 42 and the air outlet cavity; it has an extended state and a retracted state; in the extended state, the first air supply cavity 42 and the air outlet cavity are shut off; in the retracted state, the first air supply cavity 42 and the air outlet cavity are connected;

[0057] The rotating door 75 is rotatably arranged at the opening position of the second air supply chamber 43; the rotating door 75 closes the second air supply chamber 43 or adjusts the opening of the second air supply chamber 43 by rotating;

[0058] The second telescopic plate 72 and the third telescopic plate 73 are both disposed between the third air supply chamber 44 and the air outlet chamber. A gap is formed between the second telescopic plate 72 and the third telescopic plate 73 to form a bypass air passage. The bypass air passage can connect the air outlet chamber with the second air supply chamber 43 and the third air supply chamber 44.

[0059] The second telescopic plate 72 and the third telescopic plate 73 both have an extended state and a retracted state. When the second telescopic plate 72 and the third telescopic plate 73 are both in the extended state, the third air supply chamber 44 and the air outlet chamber are closed. When the second telescopic plate 72 and the third telescopic plate 73 are both in the retracted state, the third air supply chamber 44 and the air outlet chamber are connected.

[0060] The bypass telescopic plate 74 is disposed between the second telescopic plate 72 and the third telescopic plate 73 and has an extended state and a retracted state. In the extended state, the bypass air passage is shut off; in the retracted state, the bypass air passage is opened.

[0061] Optionally, the telescopic direction of each telescopic plate of the present invention is parallel to the air suction direction of the centrifugal fan 6; the air duct is cut off when the telescopic plate is in the extended state, and the air duct is opened when the telescopic plate is in the retracted state.

[0062] The present invention can control the air volume from the air outlet chamber to the first air supply chamber 42, the second air supply chamber 43 and the third air supply chamber 44 by controlling the state of each telescopic plate and the rotation direction of the rotating door 75. The remaining air volume of the air outlet chamber is sent to the second air duct plate 5 through the fourth air supply chamber 45, thereby realizing the air volume distribution between the first storage compartment 100 and the second storage compartment 200.

[0063] As an embodiment, in order to simplify the control operation, the first telescopic plate 71, the second telescopic plate 72 and the third telescopic plate 73 are all fixedly connected to the first driving plate 76; the bypass telescopic plate 74 is fixedly connected to the second driving plate 77;

[0064] The first drive plate 76 simultaneously changes the states of the first telescopic plate 71, the second telescopic plate 72, and the third telescopic plate 73, and the second drive plate 77 controls the state switching of the bypass telescopic plate 74. This simplifies the state operation process and avoids invalid operations.

[0065] Furthermore, the first drive plate 76 and the second drive plate 77 are respectively connected to a telescopic rod 78; the first air duct plate 4 is also provided with a control box 7, and the control box 7 is provided with a cylinder for driving the telescopic rod 78 to perform telescopic action, and a motor for driving the rotating door 75 to rotate;

[0066] See also Figure 4 and Figure 5 As an embodiment, the second air duct plate 5 is provided with an air volume regulating mechanism for regulating the air volume of each air outlet 2; thereby expanding the temperature regulation range of the second storage compartment 200.

[0067] As an embodiment, the air volume adjustment mechanism includes an adjusting gear 52 rotatably arranged in the second air duct plate 5 and a rack rod 53 slidably arranged in the second air duct plate 5 and engaged with the adjusting gear 52; a wind shield 51 is provided at the air outlet 2, and the wind shield 51 is fixed to the rack rod 53; the wind shield 51 is driven to move by sliding of the rack rod 53, and the shielding area of ​​the wind shield 51 on the air outlet 2 is adjusted, thereby adjusting the air outlet volume of the air outlet 2, and finally adjusting the temperature in the second storage compartment 200.

[0068] Optionally, a cover 54 is provided in the second air duct plate 5, and the adjustment gear 52 is installed in the cover 54; the rack rod 53 can pass through both ends of the cover 54 to connect each windshield plate 51. The cover 54 protects the adjustment gear 52 and the rack rod 53 from travel.

[0069] Optionally, the second air duct plate 5 is further provided with a main air outlet 21 to increase the air supply point of the second storage compartment 200 and promote temperature balance in the compartment.

[0070] See also Figure 8-11 The present invention lists the states of the air volume distribution mechanism in several cooling modes. It should be noted that in order to clearly show the on / off state of each chamber, each retractable plate is hidden in the on state and displayed in the off state.

[0071] Combine Figure 8 , cooling mode 1:

[0072] The first, second, and third retractable panels 71, 72, 73, and bypass retractable panel 74 are all extended, distributing all airflow from the air outlet chamber to the second storage compartment 200. By controlling the speed of the centrifugal fan 6, the second storage compartment 200 can be configured to have either a refrigeration or freezing function. In this cooling mode, no air enters the first storage compartment 100. This mode is ideal when there are few items in the compartment, leaving it idle and turning off its cooling function to reduce energy consumption.

[0073] Combine Figure 9 , cooling mode 2:

[0074] The first telescopic plate 71, the second telescopic plate 72, the third telescopic plate 73 and the bypass telescopic plate 74 are all in the retracted state; a larger amount of air from the air outlet cavity is allocated to the first storage compartment 100, so that it has a freezing function; a smaller amount of air is allocated to the second storage compartment 200, so that it has a refrigeration function.

[0075] Optionally, in this mode, the first air duct plate 4 can be closed by a controllable damper to make the second storage compartment 200 idle.

[0076] Optionally, in this mode, the air volume of the air outlet 2 can be adjusted by the air volume adjustment mechanism to adjust the temperature of the second storage compartment 200 .

[0077] See also Figure 10 , cooling mode three:

[0078] The first telescopic plate 71, the second telescopic plate 72, and the third telescopic plate 73 are in an extended state, and the bypass telescopic plate 74 is in a retracted state; the rotating door 75 turns right and abuts against the third telescopic plate 73, so that the bypass air passage is connected to the second air supply chamber 43;

[0079] In this mode, a smaller amount of air from the air outlet cavity is distributed to the first storage compartment 100 so that it has a refrigeration function; a larger amount of air is distributed to the second storage compartment 200 so that it has a cooling function.

[0080] Optionally, in this mode, the total air volume can be controlled by controlling the fan speed, thereby controlling the temperatures of the first storage compartment 100 and the second storage compartment 200 respectively.

[0081] Optionally, in this mode, the rotating door 75 is turned right to close the second air supply chamber 43, so that the bypass air passage is connected to the third air supply chamber 44;

[0082] See also Figure 11 , cooling mode four:

[0083] The first telescopic plate 71, the second telescopic plate 72, the third telescopic plate 73 and the bypass telescopic plate 74 are all in the retracted state; the rotary door 75 is turned left to close the second air supply chamber 43;

[0084] In this mode, the first storage compartment 100 and the second storage compartment 200 are allocated air volumes adapted to their volumes, so that the two storage compartments have both refrigeration functions or both freezing functions.

[0085] The cooling state of the two storage compartments can be controlled by adjusting the centrifugal fan 6.

[0086] Optionally, in the cooling mode, the air volume of the second storage compartment 200 may be controlled by a controllable damper, so that the first storage compartment 100 has a freezing function and the second storage compartment 200 has a refrigeration function.

[0087] Optionally, in the cooling mode, the temperature of the second storage compartment 200 may be adjusted by an air volume adjustment mechanism.

[0088] Other refrigeration modes will not be described in detail. Those skilled in the art can adopt the above-mentioned method to implement the mode according to the functional requirements of the actual product, and the obtained refrigeration mode also belongs to the protection scope of the present invention.

[0089] As an embodiment, the refrigeration device of the present invention may be a refrigerator or a freezer.

[0090] In summary, the present invention provides a single-system refrigeration device capable of switching between multiple cooling modes. By incorporating an air volume distribution mechanism within the first air duct plate, the air volume distribution between the two storage compartments is regulated, enabling switching or interchange of cooling modes between the two storage compartments. Combined with centrifugal fan speed control, this expands the temperature control range of the two storage compartments, meeting diverse storage needs. This compact design allows for switching between single-system cooling modes at a low cost.

[0091] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A single-system refrigeration device capable of switching multiple refrigeration modes, characterized in that: include: a first inner tank having a first storage compartment; a second inner tank having a second storage compartment; A first air duct plate is disposed inside the first inner container and near the back side thereof; it has a plurality of air outlets for supplying air to the first storage compartment; a refrigeration compartment for mounting an evaporator is further formed between the back side wall of the first inner container and the first air duct plate; A second air duct plate is disposed inside the second liner and near the back side thereof, and has a plurality of air distribution ports for supplying air to the second storage compartment; a transition air duct plate, connecting the first air duct plate and the second air duct plate; a centrifugal fan mounted on the first air duct plate, with its air intake facing the refrigeration compartment; a volute located outside the centrifugal fan is provided within the first air duct plate, with an air outlet cavity formed between the volute and the centrifugal fan; The centrifugal fan is configured to: draw cold air from the refrigeration compartment into the air outlet cavity, and then send the cold air from the air outlet cavity into the first storage compartment and / or the second storage compartment; An air volume distribution mechanism is provided in the first air duct plate; the air volume distribution mechanism is configured to regulate the air volume distribution between the first storage compartment and the second storage compartment.

2. The single-system refrigeration device capable of switching multiple refrigeration modes according to claim 1, characterized in that: The transition air duct plate is provided with a controllable air door.

3. The single-system refrigeration device capable of switching multiple refrigeration modes according to claim 1, characterized in that: The second air duct plate is provided with an air volume regulating mechanism for regulating the air volume of each air outlet.

4. The single-system refrigeration device capable of switching multiple refrigeration modes according to claim 3, characterized in that: The air volume adjustment mechanism includes an adjustment gear rotatably arranged in the second air duct plate and a rack rod slidably arranged in the second air duct plate and engaged with the adjustment gear; a wind shield is provided at the air outlet, and the wind shield is fixed to the rack rod.

5. The single-system refrigeration device capable of switching multiple refrigeration modes according to claim 4, characterized in that: A cover is provided inside the second air duct plate, and the adjusting gear is installed in the cover; the rack rod can pass through both ends of the cover to connect each windshield.

6. The single-system refrigeration device capable of switching multiple refrigeration modes according to claim 1, characterized in that: The second air duct plate is also provided with a main air outlet.

7. The single-system refrigeration device capable of switching multiple refrigeration modes according to any one of claims 1 to 6, characterized in that: The air outlet includes a first air outlet, a second air outlet and a third air outlet; the first air duct plate is provided with a first air supply cavity, a second air supply cavity and a third air supply cavity connected to the corresponding air outlets; the first air duct plate is also provided with a fourth air supply cavity connected to the transition air duct plate; each air supply cavity is connected to the air outlet cavity; The air volume distribution mechanism includes: The first retractable plate is disposed between the first air supply cavity and the air outlet cavity; it has an extended state and a retracted state; in the extended state, the first air supply cavity and the air outlet cavity are shut off; in the retracted state, the first air supply cavity and the air outlet cavity are connected; A rotating door is rotatably arranged at the opening position of the second air supply chamber; the rotating door closes the second air supply chamber or adjusts the opening of the second air supply chamber by rotating; The second and third telescopic plates are both disposed between the third air supply chamber and the air outlet chamber; a gap is provided between the second and third telescopic plates to form a bypass air passage; the bypass air passage is capable of connecting the air outlet chamber with the second or third air supply chamber; the second and third telescopic plates each have an extended state and a retracted state; The second and third telescopic plates are simultaneously extended to shut off the third air supply cavity and the air outlet cavity; and both are simultaneously retracted to connect the third air supply cavity and the air outlet cavity. The bypass telescopic plate is arranged between the second telescopic plate and the third telescopic plate and has an extended state and a retracted state. In the extended state, the bypass air path is closed; in the retracted state, the bypass air path is opened.

8. The single-system refrigeration device capable of switching multiple refrigeration modes according to claim 7, characterized in that: The first telescopic plate, the second telescopic plate and the third telescopic plate are all fixedly connected to the first driving plate; the bypass telescopic plate is fixedly connected to the second driving plate.

9. The single-system refrigeration device capable of switching multiple refrigeration modes according to claim 8, characterized in that: The first driving plate and the second driving plate are respectively connected to a telescopic rod; a control box is also provided on the first air duct plate, and a cylinder for driving the telescopic rod and a motor for driving the rotating door are provided in the control box.

10. The single-system refrigeration device capable of switching multiple refrigeration modes according to claim 7, characterized in that: The refrigeration equipment is a refrigerator or a freezer.

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