Air door assembly and refrigerating system thereof

Abstract

The invention discloses an air door assembly and a refrigerating system thereof.The air door assembly comprises a driving part and a control part, the driving part comprises a cavity and refrigerants filled in the cavity, one end of the driving part is used for sensing the temperature, and the pressure of the refrigerants is in direct proportion to the temperature; the input end of the transmission mechanism is connected with the other end of the driving part, and the output end of the transmission mechanism is used for being connected with the air door; wherein the driving part drives the transmission mechanism to move under the action of the pressure of the refrigerant in the driving part so as to drive the air door to rotate, so that the cost is reduced and the mounting space is saved while stable control is provided. The invention further provides a refrigerating system.

Description

Technical Field

[0001] The present application relates to the technical field of air-cooling refrigeration, and in particular to a damper assembly and a refrigeration system thereof. Background Art

[0002] At present, in air-cooled refrigeration systems or products, such as refrigerators and freezers, a damper switch is used to control cold air from the evaporator compartment into the storage room, thereby controlling the temperature in the storage room.

[0003] In the related art, a motor is used to control the rotation of the damper. In the process of implementing the embodiments of the present disclosure, it is found that the related art has at least the following problems:

[0004] At low temperatures, the motor's magnet performance will be abnormal, such as reduced magnetism, which will cause the motor's output torque to decrease. This phenomenon is more obvious at ultra-low temperatures of -40°C. In other related technologies, a wax motor is used to control the rotation of the damper. However, due to the high melting point of wax, it must be used in conjunction with heating devices, temperature sensors, circuit boards, etc., which not only requires a larger installation space, but also has a relatively high cost. In addition, it takes a certain amount of time for the wax in the wax motor to melt and cool, resulting in a delay in the control of the damper, and the response speed does not meet the requirements.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a damper assembly and a refrigeration system thereof, so as to reliably control the damper under ultra-low temperature conditions and solve the technical problem of insufficient response speed in damper control.

[0008] In some embodiments, the damper assembly includes:

[0009] A driving member, comprising a cavity and a refrigerant filled in the cavity, one end of the driving member is used to sense temperature, and the pressure of the refrigerant is proportional to the temperature; and

[0010] A transmission mechanism, wherein an input end of the transmission mechanism is connected to the other end of the driving member, and an output end of the transmission mechanism is used to be connected to the damper;

[0011] Wherein, the driving member drives the transmission mechanism to move under the action of the pressure of the internal refrigerant, so as to drive the damper to rotate.

[0012] In some embodiments, the refrigeration system comprises:

[0013] Storage room;

[0014] a cooling air duct, connected to the storage chamber; and

[0015] A damper assembly, wherein the damper is arranged in the refrigeration air duct, one end of the driving member is arranged in the storage chamber for sensing the temperature of the storage chamber, and the output end of the transmission mechanism is connected to the damper for driving the damper to open or close the refrigeration air duct.

[0016] The damper assembly and refrigeration system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0017] The damper assembly provided by the present disclosure includes a driving member and a transmission mechanism. The driving member is filled with refrigerant. The pressure of the refrigerant is proportional to the temperature. That is, when one end of the driving member senses the temperature change in the storage chamber. Based on the principle of thermal expansion and contraction, the refrigerant in the cavity of the driving member undergoes a volume change, causing the pressure in the cavity to change with the change in temperature. Then, the other end of the driving member produces a displacement change. Then, under the action of the pressure of the internal refrigerant, the input end of the driving transmission mechanism moves, and the output end of the transmission mechanism drives the damper to rotate, so as to drive the damper to rotate. The refrigerant in the driving member senses the temperature of the storage chamber, and according to the change in temperature, the pressure in the cavity changes to realize the internal drive of the driving member. The operation of the transmission mechanism driven by the driving member is used to realize the opening or closing of the damper. Compared with the related art, the present disclosure can adapt to the ultra-low temperature operating environment, make the control response speed of the damper faster, and can reduce the installation of components, reduce costs, and save space. In addition, the stable expansion and contraction of the refrigerant in the cavity makes the operation of the drive components consistent and stable, reduces the failure rate, and improves the reliability of the damper control.

[0018] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0020] Figure 1 is a structural schematic diagram of a damper assembly provided by an embodiment of the present disclosure at an angle;

[0021] Figure 2 yes Figure 1 A schematic structural diagram of the damper assembly provided by the illustrated embodiment from another angle;

[0022] Figure 3 is a structural schematic diagram of a damper assembly driving a damper in a half-open state provided by an embodiment of the present disclosure;

[0023] Figure 4 is a structural schematic diagram of a damper assembly provided in an embodiment of the present disclosure driving the damper to be fully opened;

[0024] Figure 5 is a structural schematic diagram of a damper assembly driving a damper in a fully closed state provided by an embodiment of the present disclosure;

[0025] Figure 6 yes Figure 1 A partial structural side view of a damper assembly provided by the illustrated embodiment;

[0026] Figure 7 yes Figure 1 A partial structural cross-sectional view of a damper assembly provided by the illustrated embodiment;

[0027] Figure 8 yes Figure 1 A partial structural cross-sectional view of a damper assembly provided by the illustrated embodiment;

[0028] Fig. 9 yes Figure 1 A schematic diagram of the internal structure of the damper assembly provided in the illustrated embodiment;

[0029] Fig.10 yes Fig. 9 A schematic structural diagram of the damper assembly provided by the illustrated embodiment from another angle;

[0030] Fig.11 yes Fig. 9 A schematic structural diagram of the damper assembly provided by the illustrated embodiment at another angle;

[0031] Fig.12 is a side sectional structural diagram of an adjustment mechanism of a damper assembly provided in yet another embodiment of the present disclosure;

[0032] Fig.13 It is a structural schematic diagram of a refrigeration system provided by an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 1: driving member; 11: cavity; 12: refrigerant; 13: temperature sensing device; 131: first inner cavity; 14: lifting device; 141: second inner cavity; 142: fixed end; 143: moving end;

[0035] 2: transmission mechanism; 2a: input end; 2b: output end; 21: transmission rod; 211: rack; 212: connecting part; 22: transmission gear; 23: rotating shaft;

[0036] 3: Air door;

[0037] 4: adjustment mechanism; 41: adjustment member; 411: adjustment nut; 412: adjustment support; 42: spring; 43: worm gear; 44: worm; 45: adjustment button;

[0038] 5: Shell;

[0039] 6: cooling air duct; 61: upper cooling air duct; 62: lower cooling air duct;

[0040] 7: storage room; 71: upper refrigeration room; 72: lower refrigeration room;

[0041] 9: Evaporator assembly. DETAILED DESCRIPTION

[0042] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0043] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0044] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0046] Unless otherwise stated, the term "plurality" means two or more.

[0047] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0048] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0049] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0050] At present, wax motors are used as damper drive devices. Wax motors use the principle of thermal expansion and contraction to drive the movement of mechanical parts to open and close the damper. The driving principle of the wax motor is to use the melting expansion and cooling contraction of solid wax to achieve the reciprocating motion of the parts. First of all, due to the high melting point of wax, it must be used in conjunction with heating components, temperature sensors, computer boards and other originals, and the cost is relatively high. Secondly, in a low temperature environment (-40°C and below), in order to ensure that the wax reaches the melting point, the power of the required heating components needs to be increased, which in turn causes the volume of the heating components to increase, so a larger installation space is required. Finally, it takes a certain amount of time for the wax in the wax motor to melt and cool, which will cause a delay in the opening and closing of the damper.

[0051] In some embodiments, in combination Figure 1 to Figure 2 As shown, an embodiment of the present disclosure provides a damper assembly, including a driving member 1 and a transmission mechanism 2.

[0052] The driving member 1 comprises a cavity 11 and a refrigerant 12 filled in the cavity 11. One end of the driving member 11 is used to sense the temperature. The pressure of the refrigerant 12 is proportional to the temperature.

[0053] The transmission mechanism 2 has an input end 2a connected to the other end of the driving member 1 , and an output end 2b of the transmission mechanism 2 is used to be connected to the damper 3 .

[0054] Under the action of the pressure of the refrigerant 12 inside, the driving member 1 drives the transmission mechanism 2 to move, thereby driving the damper 3 to rotate.

[0055] Combination Figures 3 to 5 As shown, the driver 1 includes a cavity 11 and a refrigerant 12 filled in the cavity 11. One end of the driver 1 is used to sense the temperature, and the pressure of the refrigerant 12 is proportional to the temperature. Specifically, one end of the driver 1 senses the temperature in the storage chamber, and then the state of the refrigerant 12 in the cavity 11 of the driver 1 changes according to the change in temperature. If one end of the driver 1 senses that the temperature in the storage chamber is high, the volume of the refrigerant 12 expands due to thermal expansion and contraction, and the pressure of the expanded refrigerant 12 on the cavity 11 increases. If one end of the driver 1 senses that the temperature in the storage chamber is low, the volume of the refrigerant 12 shrinks due to thermal expansion and contraction, and the pressure of the shrinking refrigerant 12 on the cavity 11 decreases.

[0056] One end of the driving member 11 is used to sense the temperature, the input end 2a of the transmission mechanism 2 is connected to the other end of the driving member 1, and the output end 2b of the transmission mechanism 2 is used to connect to the damper 3. Under the pressure of the refrigerant 12 inside, the driving member 1 drives the transmission mechanism 2 to move, so as to drive the damper 3 to rotate. Specifically, since the input end 2a of the transmission mechanism 2 is connected to the driving member 1, that is, the driving member 1 drives the movement of the transmission mechanism 2. When the refrigerant 12 in the cavity 11 senses the higher temperature in the storage room and expands, the pressure in the cavity 11 increases, and the increased pressure drives the transmission mechanism 2 to move, and then, the output end 2b of the transmission mechanism 2 drives the damper 3 to rotate in the opening direction, so that cold air is blown in to cool down. When the temperature in the storage room decreases, the refrigerant 12 contracts and the pressure in the cavity 11 decreases, causing the transmission mechanism 2 to close the damper 3.

[0057] The damper 3 is used to isolate the storage room from the refrigeration air duct. When the damper 3 is completely closed, the damper 3 isolates the storage room from the refrigeration air duct, so that the cold air cannot be introduced into the storage room through the refrigeration air duct. When the damper 3 is opened, the damper 3 is opened at a certain angle to the horizontal direction, so that the cold air can be introduced into the storage room through the refrigeration air duct. In other words, the opening and closing angle of the damper 3 can be adjusted arbitrarily under the adjustment of the transmission mechanism 2.

[0058] With the damper assembly provided by the embodiment of the present disclosure, the driving member 1 drives the transmission mechanism 2 through the thermal expansion and contraction of the refrigerant 12, thereby controlling the opening and closing of the damper 3. The opening and closing of the damper 3 is controlled by a mechanical structure without the need for any electrical components, thereby reducing the control cost of the damper 3. Moreover, since there is no need to use electrical components to control the damper 3, the damper 3 can better adapt to the ultra-low temperature control environment. Because there are no electrical components in the damper assembly, the ultra-low temperature environment cannot affect the operation of the damper assembly. In addition, the control flexibility and stability of the damper 3 are improved, and installation space can also be saved.

[0059] Moreover, compared with the principle of the wax motor driving the damper 3 in the prior art, that is, the reciprocating motion of the components is achieved by utilizing the melting expansion and cooling contraction of solid wax. Since the melting point of wax is relatively high, the use of a wax motor to drive the damper 3 must be coordinated with heating components, temperature sensors, computer boards and other components, which is more expensive. Moreover, in a low temperature environment (-40°C and below), in order to ensure that the wax reaches its melting point, the power of the required heating components also needs to be increased, and then, its volume also increases accordingly, requiring a larger installation space. In addition, the melting and cooling of the wax both require a certain amount of time, which will also cause delays in the opening and closing of the damper 3, and it is impossible to accurately and quickly control the temperature. However, only using a mechanical structure to control the opening and closing of the damper 3 not only reduces the control cost of the damper 3, saves installation space, but also enables accurate and rapid control of the damper 3.

[0060] Optionally, combined Figures 3 to 5 As shown, the driving component 1 includes a temperature sensing device 13 and a lifting device 14 .

[0061] The temperature sensing device 13 includes a first inner cavity 131 . The lifting device 14 includes a second inner cavity 141 with a variable volume. The first inner cavity 131 and the second inner cavity 141 are connected to each other to form a cavity 11 .

[0062] Specifically, the first inner cavity 131 of the temperature sensing device 13 can timely sense the temperature in the storage room, and then, the refrigerant 12 in the first inner cavity 131 and the second inner cavity 141 can expand or compress when sensing the temperature change. Since the volume of the second inner cavity 131 of the lifting device 14 is variable, the second inner cavity 131 can be deformed with the expansion or compression of the refrigerant 12. Based on the deformation of the second inner cavity 131, for example, the second inner cavity 131 is stretched upward or retracted downward, the lifting device 14 drives the input end 2a of the transmission mechanism 2 to move, thereby controlling the opening and closing of the damper 3. In this way, the cavity 11 is composed of the temperature sensing device 13 and the lifting device 14, so that the driving component 1 has both the temperature sensing function and the lifting and driving function, which can better save the installation space of the equipment and save costs.

[0063] Furthermore, a sealed cavity 11 space is formed in the driving member 1, and the refrigerant 12 can stably expand and contract in the cavity 11, so that the operation of the lifting device 14 is stable. Compared with the lifting system of the related technology, it is more convenient to maintain and has a lower failure rate.

[0064] Combination Figure 6 As shown, the lifting device 14 includes a fixed end 142 and a movable end 143, the fixed end 142 is connected to the temperature sensing device 13, and the movable end 143 is connected to the input end 2a of the transmission mechanism 2. Under the pressure of the refrigerant 12, the movable end 143 of the lifting device 14 can move relative to the fixed end 142 of the lifting device 14 to drive the transmission mechanism 2 to move. For example, the bottom surface of the lifting device 14 is fixed, and the top surface of the lifting device 14 can be lifted and moved relative to the bottom surface.

[0065] That is, one end of the lifting device 14 is a fixed end 143, and the other end is a movable end 142, the movable end 142 can be lifted and moved relative to the fixed end 143, and the fixed end 143 is sealedly connected to the temperature sensing device 13. The movable end 142 is connected to the input end 2a of the transmission mechanism 2, so that the transmission mechanism 2 drives the damper 3 according to the lifting or lowering input by the movable end 142.

[0066] Specifically, the temperature sensing device 13 is located at the fixed end 142 of the lifting device 14. The temperature sensing device 13 senses the temperature change in the storage room to cause the refrigerant 12 to expand or contract. Then, the force generated by the expansion or contraction of the refrigerant 12 can drive the movement of the moving end 143 of the lifting device 14, and finally drive the transmission mechanism 2 to move up and down to control the opening and closing of the damper 3. The temperature sensing device 13 is integrally formed with the bottom surface of the lifting device 14. Alternatively, the temperature sensing device 13 is sealedly connected to the bottom surface of the lifting device 14.

[0067] Optionally, the temperature sensing device 13 and / or the lifting device 14 are made of metal.

[0068] Specifically, the temperature sensing device 13 and the lifting device 14 made of metal material have a more stable structure and a lower probability of failure. Moreover, after the damper 3 is installed, it is protected in the housing 5 and will not come into contact with the outside world, thereby improving its operational stability.

[0069] Optionally, combined Figures 3 to 6 As shown, the transmission mechanism 2 includes a transmission rod 21 and a transmission gear 22. The transmission rod 21 includes a rack 211 and a connecting portion 212, and the connecting portion 212 is arranged at one end of the rack 211. The transmission gear 22 is meshed with the rack 211, and the rotating shaft 23 of the transmission gear 22 is connected to the damper 3. The connecting portion 212 is the input end 2a of the transmission mechanism 2, and the rotating shaft 23 is the output end 2b of the transmission mechanism 2 。

[0070] Specifically, when the driving member 1 moves up and down, the driving member 1 can drive the connecting portion 212 of the transmission rod 21 to move up and down, and the connecting portion 212 can drive the rack 211 to move up and down, and then the rack 211 can drive the transmission gear 22 to rotate clockwise or counterclockwise. Then, driven by the transmission gear 22, the rotating shaft 23 rotates clockwise or counterclockwise, and finally, the rotating shaft 23 drives the damper 3 to rotate to control the opening and closing of the damper 3.

[0071] Further, the rotating shaft 23 is rotatably connected to the housing 5, and the transmission gear 22 is fixedly connected to the rotating shaft 23. Since the transmission gear 22 drives the rotating shaft 23 to rotate, the transmission gear 22 and the rotating shaft 23 need to be fixed, and the rotating shaft 23 needs to be able to rotate.

[0072] Combination Figures 7 and 8 As shown, the damper assembly further includes an adjusting mechanism 4 disposed at the moving end 143 of the lifting device 14 to adjust the moving distance of the moving end 143 of the lifting device 14 .

[0073] Specifically, since the moving end 143 of the lifting device 14 can move with the expansion and contraction of the refrigerant 12, the opening and closing of the damper 3 can be controlled by the transmission mechanism 2. In other words, the pressure driving the moving end 143 of the lifting device 14 to move is certain. As long as the pressure generated by the refrigerant 12 in the cavity 11 at a certain temperature is greater than the pressure generated by the moving end 143 of the lifting device 14 moving downward, the moving end 143 of the lifting device 14 can be moved to open the damper 3. After the damper 3 is opened, when the storage chamber returns to a certain temperature, the refrigerant 12 will shrink and close the damper 3. Therefore, when the pressure generated downward by the moving end 143 of the lifting device 14 remains unchanged, the temperature in the storage chamber will remain at the same temperature and cannot be adjusted. Therefore, it is necessary to add an adjustment mechanism 4 to the moving end 143 of the lifting device 14 to limit its moving distance. In this way, the adjustment mechanism 4 can increase or decrease the downward pressure on the moving end 143 of the lifting device 14, thereby achieving the purpose of adjusting the temperature in the storage chamber.

[0074] Exemplarily, the regulating mechanism 4 applies pressure to the movable end 143 of the lifting device 14, and only when the refrigerant 12 in the cavity 11 is -18°C, the pressure generated in the cavity 11 can lift the movable end 143 of the lifting device 14 at this time to cause it to displace, thereby driving the transmission mechanism 2 to control the damper 3 to open. At this time, if the temperature of the refrigerant 12 is below -18°C, the pressure generated by the refrigerant 12 in the cavity 11 will not move the movable end 143 of the lifting device 14. In other words, when the temperature of the storage chamber is below -18°C, the damper 3 is in a normally closed state. In this way, the regulating mechanism 4 plays a role in precise temperature control, and the adjustment of the regulating mechanism 4 facilitates the user to achieve precise control of the temperature in the storage chamber.

[0075] Optionally, combined Figures 7 and 8 As shown, the adjustment mechanism 4 includes an adjustment member 41 and a spring 42 .

[0076] The adjusting member 41 is disposed at the moving end 143 of the lifting device 14 , and the adjusting member 41 can move relative to the moving end 143 of the lifting device 14 .

[0077] One end of the spring 42 is connected to the adjusting member 41 , and the other end of the spring 42 is disposed at the moving end 143 of the lifting device 14 .

[0078] Optionally, one end of the spring 42 is connected to the moving end 143 of the lifting device 14, and the other end is connected to the adjusting member 41. The closer the adjusting member 41 is to the moving end 143 of the lifting device 14, the greater the pressure of the spring 42 on the moving end 143.

[0079] Specifically, the adjusting member 41 can move relative to the moving end 143 of the lifting device 14, and the spring 42 is arranged between the adjusting member 41 and the moving end 143 of the lifting device 14. That is, when the adjusting member 41 moves up and down relative to the moving end 143 of the lifting device 14, the adjusting member 41 will compress or stretch the spring 42. According to the characteristics of the spring 42, the tighter the spring 42 is compressed, the greater the downward pressure generated by the spring 42 on the moving end 143 of the lifting device 14. At the same time, the spring 42 will also generate a greater upward pressure on the adjusting member 41. In this way, the downward pressure on the moving end 143 of the lifting device 14 can be adjusted according to the degree of compression of the spring 42. That is, when the downward pressure on the moving end 143 of the lifting device 14 is greater, the refrigerant 12 needs to generate a greater pressure to lift the moving end 143 of the lifting device 14, and then, the refrigerant 12 needs to be at a higher temperature. Furthermore, the designer can design the temperature gear of the storage chamber according to the downward pressure values ​​respectively applied to the moving end 143 of the lifting device 14 when the spring 42 is in a free state and when the spring 42 is fully compressed, so that the user can accurately adjust the adjusting member 41 according to the gear. It is worth mentioning that the spring 42 can be any elastic component applicable to the present solution.

[0080] Optionally, combined Figures 7 and 8 As shown, the adjusting member 41 includes an adjusting nut 411 and an adjusting support portion 412 .

[0081] The adjusting nut 411 is connected to one end of the spring 42 , and the adjusting nut 411 is provided with an internal thread.

[0082] The adjustment support portion 412 is provided with an external thread, and the external thread of the adjustment support portion 412 is connected to the internal thread of the adjustment nut 411 , so that the adjustment nut 411 moves along the adjustment support portion 412 , thereby stretching or compressing the spring 42 .

[0083] Specifically, the adjustment support portion 412 is threadedly connected to the adjustment nut 411. That is, the adjustment nut 411 can be moved up and down on the adjustment support portion 412 by rotating the adjustment nut 411. The adjustment nut 411 can be moved up and down to adjust the spring 42 to stretch or compress, and then the spring 42 generates a downward pressure value on the moving end 143 of the adjustment lifting device 14 to achieve temperature control of the storage chamber.

[0084] Further, the adjustment support portion 412 may be fixedly connected to the interior of the housing 5. Specifically, the interior of the housing 5 may provide support for the adjustment support portion 412.

[0085] Further, the spring 42 and the adjusting nut 411 are relatively movably connected, that is, the rotation of the adjusting nut 411 does not forcibly drive the rotation of the spring 42. Preferably, the spring 42 and the adjusting nut 411 are connected through a shaft housing, that is, the spring 42 is fixedly connected to the shaft housing, the shaft housing is rotatably connected to the adjusting nut 411, and the spring 42 is fixedly connected to the moving end 143 of the adjusting lifting device 14.

[0086] In a feasible embodiment, the spring 42 is fixedly connected to the adjusting nut 411, and the spring 42 is rotationally connected to the movable end 143 of the adjusting lifting device 14 through the shaft housing, that is, the spring 42 is fixedly connected to the shaft housing, and the shaft housing is rotationally connected to the movable end 143 of the adjusting lifting device 14.

[0087] In another feasible embodiment, the spring 42 is rotatably connected to the adjusting nut 411 and the movable end 143 of the adjusting lifting device 14 through a shaft housing. That is, the two ends of the spring 42 are respectively fixedly connected to the shaft housing, one end of the shaft housing is rotatably connected to the adjusting nut 411, and the other end of the shaft housing is rotatably connected to the movable end 143 of the adjusting lifting device 14.

[0088] In another feasible embodiment, the spring 42 is movably connected between the adjusting nut 411 and the movable end 143 of the adjusting lifting device 14. Specifically, since the adjustment of the adjusting nut 411 requires rotation, the spring 42 is preferably not completely fixedly connected between the adjusting nut 411 and the movable end 143 of the adjusting lifting device 14. In order to prevent the spring 42 from being excessively twisted when stretched or compressed, at least one end of the spring 42 needs to be movably connected to the adjusting nut 411 or the movable end 143 of the adjusting lifting device 14.

[0089] Optionally, combined Figure 1 to Figure 2 and Figure 7 As shown, the damper assembly further includes a housing 5 , and a lifting device 14 and a transmission mechanism 2 are arranged inside the housing 5 .

[0090] Specifically, the housing 5 protects the lifting device 14 , the transmission mechanism 2 , the adjustment mechanism 4 , etc. inside thereof, and provides a stable environment for the operation of the lifting device 14 , the transmission mechanism 2 , and the adjustment mechanism 4 .

[0091] The adjustment support portion 412 integrally extends from the interior of the housing 5. The adjustment support portion 412 further includes a through hole to accommodate the input end 2a of the transmission mechanism 2 in the through hole.

[0092] Specifically, a through hole is provided in the adjustment support portion 412, and the input end 2a of the transmission mechanism 2 is connected to the moving end 143 of the lifting device 14 by inserting the through hole. When the moving end of the lifting device 14 moves up and down, the transmission mechanism 2 is driven to move up and down in the adjustment support portion 412, which is conducive to ensuring the stable operation of the transmission mechanism 2.

[0093] Furthermore, combined with Figure 7 and Fig.12 As shown, the spring 42 is arranged in the through hole of the adjustment support part 412, and the spring 42 is sleeved outside the input end 2a of the transmission mechanism 2. When the adjustment nut 411 is adjusted, the spring 42 is compressed or stretched outside the input end 2a of the transmission mechanism 2 or inside the through hole of the adjustment support part 412.

[0094] Combination Figures 9 to 12 As shown, the adjustment mechanism 4 further includes a worm wheel 43 and a worm 44, and the worm 44 and the worm wheel 43 are meshed with each other.

[0095] The outer surface of the adjusting nut 411 is provided with meshing teeth, which mesh with the worm gear 43 , and then drive the adjusting nut 411 to move along the adjusting support portion 412 through the worm 44 and the worm gear 43 .

[0096] Specifically, the outer surface of the adjusting nut 411 meshes with the worm wheel 43, and the worm wheel 43 and the worm 44 mesh with each other. That is, when the worm 44 is rotated, the worm 44 drives the worm wheel 43 to rotate, and the worm wheel 43 drives the adjusting nut 411 to rotate. Then, the adjusting nut 411 moves up and down on the outside of the adjusting support part 412 threadedly connected thereto, and compresses and stretches the spring 42. In this way, the compression and stretching of the spring 42 can be achieved by adjusting the worm 44, and then the change of the storage room temperature control value can be achieved. It can facilitate the user's adjustment operation of the storage room temperature control value.

[0097] Further, the worm wheel 43 is rotatably connected to the inside of the housing 5. Specifically, since the worm wheel 43 is driven to rotate when the worm 44 is adjusted, the worm wheel 43 needs to be rotatably connected to the inside of the housing 5 so that the worm wheel 43 can rotate flexibly.

[0098] Optionally, combined Figures 9 to 11As shown, the adjustment mechanism 4 further includes an adjustment button 45 , which is disposed at one end of the worm 44 and is used to drive the worm 44 to rotate, thereby driving the worm wheel 43 to rotate.

[0099] Specifically, one end of the worm 44 connected to the adjusting button 45 can pass through the side wall of the housing 5, so that the adjusting button 45 is arranged outside the housing 5, so that the user can control the rotation of the worm 44 through the adjusting button 45. In this way, the user can directly adjust the temperature control value of the storage chamber through the adjusting button 45.

[0100] Optionally, the temperature sensing device 13 and the fixed end 142 of the lifting device 14 are integrally formed.

[0101] Optionally, the lifting device 14 is a bellows.

[0102] Specifically, the integrally formed temperature sensing device 13 and the fixed end 142 of the lifting device 14 have better sealing performance, which is conducive to the temperature sensing device 13 to stably and accurately perform temperature sensing work. The lifting device 14 in the form of a bellows achieves the effect that the volume of the lifting device 14 can be changed, so that the lifting device 14 can change according to the expansion and contraction of the refrigerant 12.

[0103] During actual operation, the temperature sensing device 13 in the driver 1 senses the temperature in the storage room. When the temperature in the storage room changes, the refrigerant 12 expands or compresses. Then, the pressure in the cavity 11 increases or decreases due to the expansion or compression of the refrigerant. Then, the movable end 143 of the driver 1 can move upward or downward. The movable end of the driver 1 drives the transmission rod 21 of the transmission mechanism 2 to move upward or downward, and then, the rack 211 on the transmission rod 21 can drive the transmission gear 22 to rotate, and the transmission gear 22 drives the rotating shaft 23 to rotate, and finally the rotating shaft 23 can control the opening or closing of the damper 3.

[0104] When it is necessary to adjust the temperature control value in the storage room, the worm 44 is rotated by the adjusting knob 45, and the worm 44 drives the worm wheel 43 to rotate, so that the worm wheel 43 adjusts the adjusting nut 411, and the adjusting nut 411 can move upward or downward along the adjusting support portion 412, so that the adjusting nut 411 can stretch or compress the spring 42 between the moving end 143 of the driving member 1, so that the moving end 143 of the driving member 1 is adjusted by the downward pressure. Furthermore, when the moving end 143 of the driving member 1 is subjected to a downward pressure change, the pressure value generated in the cavity 11 that can move the moving end 143 of the driving member 1 will also change. Furthermore, since the pressure value that causes the moving end 143 of the driving member 1 to move changes, the temperature at which the refrigerant 12 can reach the pressure value in the cavity 11 will also change. Finally, the temperature control value in the storage room can be adjusted.

[0105] Furthermore, combined with Fig.13 As shown, an embodiment of the present disclosure provides a refrigeration system, including a storage chamber 7, a refrigeration air duct 6, and a damper assembly of any of the above embodiments, wherein the damper assembly includes a damper 3.

[0106] The cooling air duct 6 is connected to the storage chamber 7. The damper 3 is arranged in the cooling air duct. One end of the driving member 1 of the damper assembly is arranged in the storage chamber 7 for sensing the temperature of the storage chamber 7. The output end 2b of the transmission mechanism 2 is connected to the damper 3 for driving the damper 3 to open or close the cooling air duct 6.

[0107] The cooling air duct 6 includes an upper cooling air duct 61 adjacent to the upper cooling chamber 71 , and a lower cooling air duct 62 adjacent to the lower cooling chamber 72 .

[0108] The refrigeration system also includes an evaporator assembly 9, and a refrigeration duct 6 connects the evaporator assembly 9, an upper refrigeration chamber 71 and a lower refrigeration chamber 72, so that cold air flows from the evaporator assembly 9 to the upper refrigeration chamber 71 through the lower refrigeration duct 62 and the upper refrigeration duct 61 in sequence.

[0109] The damper 3 is disposed between the upper cooling air duct 61 and the lower cooling air duct 62. One end of the driving member 1 is disposed in the upper cooling channel 61.

[0110] Specifically, when the driver 1 senses that the temperature of the upper refrigeration chamber 71 rises to a certain value, the pressure in the driver 1 increases. In a feasible embodiment, since the upper refrigeration channel 61 and the upper refrigeration chamber 71 are interconnected, the driver 1 can also sense the temperature change of the upper refrigeration channel 61, that is, the temperature change of the upper refrigeration chamber 71.

[0111] Based on the expansion of the refrigerant in the driving member 1, that is, the pressure inside the driving member 1 increases, the driving member 1 drives the transmission mechanism 2 to rise. Then, the transmission mechanism 2 drives the damper 3 to rotate, so that the damper 3 opens, that is, the damper 3 opens the refrigeration air duct 6. At this time, the cold air generated nearby is transmitted from the space where the evaporator assembly 9 is located to the upper refrigeration chamber 71 through the lower refrigeration air duct 62 and the upper refrigeration air duct 61 to control the temperature of the upper refrigeration chamber 71.

[0112] When the temperature in the upper refrigeration chamber 71 drops to a suitable temperature, the pressure inside the driving member 1 is restored. Based on the relative decrease in the pressure of the driving member 1, the driving member 1 drives the transmission mechanism 2 to drop. Then, the transmission mechanism 2 rotates the damper 3 in a relatively opposite direction, so that the damper 3 is closed, that is, the damper 3 closes the refrigeration air duct 6. Finally, the temperature control in the upper refrigeration chamber 71 is achieved.

[0113] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A damper assembly, characterized in that: include: throttle; A driving member, comprising a cavity and a refrigerant filled in the cavity, one end of the driving member is used to sense temperature, and the pressure of the refrigerant is proportional to the temperature; as well as A transmission mechanism, wherein an input end of the transmission mechanism is connected to the other end of the driving member, and an output end of the transmission mechanism is used to be connected to the damper; Wherein, the driving member drives the transmission mechanism to move under the action of the pressure of the refrigerant inside, so as to drive the damper to rotate.

2. The damper assembly according to claim 1, characterized in that: The driving member comprises: The temperature sensing device comprises: a first inner cavity; A lifting device, comprising: a second inner cavity with a variable volume, the first inner cavity and the second inner cavity are connected to each other to form the cavity, the lifting device comprises a fixed end and a movable end, the fixed end is connected to the temperature sensing device, and the movable end is connected to the input end; Wherein, under the action of the pressure of the refrigerant, the movable end can move relative to the fixed end to drive the transmission mechanism to move.

3. The damper assembly according to claim 2, characterized in that: Also includes: The adjusting mechanism is arranged at the moving end to adjust the moving distance of the moving end.

4. The damper assembly according to claim 3, characterized in that: The regulating mechanism comprises: an adjusting member, disposed at the mobile end, the adjusting member being movable relative to the mobile end; and A spring, one end of which is connected to the adjusting member, and the other end of which is arranged at the moving end.

5. The damper assembly according to claim 4, characterized in that: The adjusting member comprises: an adjusting nut, connected to one end of the spring and provided with an internal thread; and The adjusting support portion is provided with an external thread, and the external thread is connected to the internal thread, so that the adjusting nut moves along the adjusting support portion, thereby stretching or compressing the spring.

6. The damper assembly according to claim 5, characterized in that: Also includes: A housing, wherein the lifting device and the transmission mechanism are arranged inside the housing; Wherein, the adjustment support portion integrally extends from the interior of the shell; the adjustment support portion also includes a through hole to accommodate the input end of the transmission mechanism in the through hole.

7. The damper assembly according to claim 5, characterized in that: The regulating mechanism also includes: worm gear; and a worm, the worm and the worm wheel meshing with each other; Wherein, the outer surface of the adjusting nut is provided with engaging teeth, and the engaging teeth are meshed with the worm wheel, and then the adjusting nut is driven to move along the adjusting support part through the worm and the worm wheel.

8. The damper assembly according to claim 7, characterized in that: The regulating mechanism also includes: An adjusting button is arranged at one end of the worm and is used to drive the worm to rotate, thereby driving the worm wheel to rotate.

9. The damper assembly according to any one of claims 2 to 8, characterized in that: The temperature sensing device and the fixed end of the lifting device are integrally formed; The temperature sensing device and the lifting device are made of metal material; and / or The lifting device is a bellows.

10. The damper assembly according to any one of claims 1 to 8, characterized in that: The transmission mechanism comprises: A transmission rod, comprising a rack and a connecting portion, wherein the connecting portion is arranged at one end of the rack; A transmission gear, the transmission gear is meshed with the rack, and the rotating shaft of the transmission gear is connected to the damper; Wherein, the connecting portion is the input end, and the rotating shaft is the output end.

11. A refrigeration system, characterized in that: include: Storage room; A cooling air duct, connected to the storage chamber; as well as The damper assembly according to any one of claims 1 to 10, wherein the damper is arranged in the refrigeration air duct, one end of the driving member is arranged in the storage chamber for sensing the temperature of the storage chamber, and the output end of the transmission mechanism is connected to the damper for driving the damper to open or close the refrigeration air duct.

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