Shielding components and refrigeration equipment

Abstract

This invention provides a shielding component and a refrigeration device. The shielding component is used in the refrigeration device, which includes an air duct, an air outlet, and a compartment. The air duct can supply air to the compartment through the air outlet. The shielding component includes a bracket, a shielding part, and a driving component. The shielding part is disposed on the bracket and can slide relative to the bracket between a first position and a second position. The driving component is connected to the shielding part and is used to drive the shielding part to slide relative to the bracket. When the shielding part is in the first position, it blocks the air outlet, disconnecting the air duct from the compartment. When the shielding part is in the second position, the air duct is connected to the compartment through the air outlet. Because the driving component can drive the shielding part to the first position to block the air outlet, when the refrigeration device is in defrost mode, the shielding part can block the connection between the air duct and the compartment, thereby reducing the probability of high-temperature gas in the air duct entering the compartment.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and more specifically, to a shielding component and a refrigeration device. Background Technology

[0002] Currently, in related technologies, refrigeration equipment includes a refrigeration chamber and an air duct. An evaporator is installed within the air duct. When the refrigeration equipment is in cooling mode, airflow passes through the evaporator in the air duct and then enters the refrigeration chamber through the air inlet, thus cooling the chamber. However, when the refrigeration equipment is in defrost mode, the temperature at the evaporator is higher. The high-temperature airflow from the evaporator enters the refrigeration chamber through the air inlet, affecting the temperature inside the refrigeration chamber and causing significant temperature fluctuations. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first aspect of this utility model proposes a shielding component.

[0005] The second aspect of this utility model provides a refrigeration device.

[0006] In view of this, the first aspect of the present invention provides a shielding assembly for use in a refrigeration device. The refrigeration device includes an air duct, an air outlet, and a compartment. The air duct can supply air to the compartment through the air outlet. The shielding assembly includes a bracket, a shielding component, and a driving assembly. The shielding component is disposed on the bracket and can slide relative to the bracket between a first position and a second position. The driving assembly is connected to the shielding component and is used to drive the shielding component to slide relative to the bracket. When the shielding component is in the first position, the shielding component blocks the air outlet, and the air duct is disconnected from the compartment. When the shielding component is in the second position, the air duct is connected to the compartment through the air outlet.

[0007] The shielding assembly provided in this application is used in a refrigeration device. The refrigeration device includes an air duct, an air outlet, and a compartment. The air duct can deliver air to the compartment through the air outlet, thereby achieving cooling of the compartment. The shielding assembly includes a bracket, a shielding component, and a drive assembly. The shielding component is disposed on the bracket, and the drive assembly is connected to the shielding component. The drive assembly can drive the shielding component to slide relative to the bracket between a first position and a second position, allowing the shielding component to move to the appropriate position as needed. When the shielding component is in the first position, the shielding component blocks the air outlet, disconnecting the air duct from the compartment, thus preventing airflow from entering the compartment from the air duct and preventing airflow from affecting the temperature of the compartment. When the shielding component is in the second position, the air duct is connected to the compartment, and airflow in the air duct can enter the compartment through the air outlet, thereby changing the temperature inside the compartment through airflow. Since the drive component can drive the blocking component to move to the first position to block the air vent, when the refrigeration equipment is in defrosting mode, the blocking component can block the connection between the air duct and the compartment, thereby reducing the probability of high-temperature gas in the air duct entering the compartment, reducing the probability of the compartment temperature rising due to the high temperature at the evaporator during defrosting, and thus reducing the impact of the refrigeration equipment on the compartment temperature during defrosting, and improving the stability of the compartment temperature.

[0008] Since the drive component can drive the shielding component to slide relative to the bracket, the sliding shielding component can move away from the area where the air vent is located and move to the second position; when the cooling equipment is in cooling mode, the shielding component moves to the second position, and the shielding component has less impact on the air vent, thereby reducing the resistance to airflow at the air vent and improving the air outlet efficiency.

[0009] Furthermore, the air vent is the air inlet of the compartment, which is the freezing compartment or refrigeration compartment of the refrigeration equipment.

[0010] The shielding component can be installed inside the room, with the shielding part blocking the side of the air vent closest to the room. Alternatively, the shielding component can be installed inside the air duct, with the shielding part blocking the side of the air vent furthest from the room.

[0011] Furthermore, when the shielding component is in the second position, it can partially block the air vent or leave the air vent completely unblocked, thereby controlling the air intake volume of the room by controlling the position of the shielding component.

[0012] Furthermore, the bracket is plate-shaped and attached to the side wall of the compartment. The bracket is provided with a first mounting part and a first screw hole. The screw passes through the first screw hole and is tightened to the side wall of the compartment.

[0013] The shielding component is plate-shaped and stacked with the bracket. When the shielding component is in the second position, it is located between the bracket and the side wall of the compartment. When the refrigeration equipment switches to defrost mode, the shielding component slides from the side wall of the compartment and the bracket to the first position to block the air vent.

[0014] In some technical solutions of this utility model, optionally, the driving component includes a driving shaft, and the blocking component further includes a gear and a rack; the gear is connected to the driving shaft; the rack is connected to the blocking component and meshes with the gear.

[0015] In this technical solution, the driving component includes a drive shaft, and the blocking component includes a gear connected to the drive shaft, which drives the gear to rotate. The blocking component also includes a rack connected to the blocking component and meshing with the gear. When the drive shaft drives the gear to rotate, the gear drives the rack to move, which in turn drives the blocking component to move. The blocking component is driven by the gear and rack working together, and there is no relative slippage between the rack and gear, thus allowing the driving component to control the position of the blocking component more accurately and improving the driving precision of the blocking component.

[0016] Specifically, the drive component can be a motor, such as a stepper motor, with a rack mounted on the motor's drive shaft.

[0017] A positioning platform is provided on the drive shaft, so that the cross-section of the drive shaft is not circular, and the cross-section of the inner hole of the gear is the same as that of the drive shaft, thereby enabling the drive shaft to stably drive the gear to rotate.

[0018] Furthermore, the drive component can be an electric telescopic rod, with the piston of the electric telescopic rod connected to the blocking component, thereby driving the blocking component.

[0019] In some technical solutions of this utility model, optionally, the rack is arranged linearly on the side of the shielding component near the bracket; when the shielding component is in the first position, the gear is located at one end of the rack; when the shielding component is in the second position, the gear is located at the other end of the rack.

[0020] In this technical solution, a rack is positioned on the side of the shielding component near the support, and the rack is arranged linearly, allowing the shielding component to slide along a linear path, thereby improving its stability during sliding. When the shielding component is in the first position, the gear is located at one end of the rack; when the shielding component is in the second position, the gear is located at the other end of the rack. This allows the shielding component to make fuller use of the rack's length during movement, thus increasing the movement distance of the shielding component. When the refrigeration equipment is in cooling mode, the shielding component with a larger movement distance can move away from the area where the air vent is located, thereby reducing the impact of the shielding component on the airflow from the vent. When the refrigeration equipment is in defrosting mode, the shielding component with a larger movement distance can more accurately block the air vent, thereby reducing the impact of the high-temperature airflow in the duct on the room temperature.

[0021] Furthermore, when the blocking component is in the first position, the gear may also be located in the middle of the rack or in other areas of the rack.

[0022] When the blocking component is in the second position, the gear may also be located in the middle of the rack or in other areas of the rack.

[0023] Optionally, in some technical solutions of this utility model, the bracket is provided with a sliding groove, which is arranged along the sliding direction of the blocking component; at least a portion of the blocking component is disposed in the sliding groove.

[0024] In this technical solution, a sliding groove is provided on the bracket, which is arranged along the sliding direction of the blocking component. At least a part of the blocking component is disposed in the sliding groove, thereby guiding the movement of the blocking component through the sliding groove on the bracket and further improving the stability of the movement of the blocking component.

[0025] Furthermore, a stop is provided on the blocking component. When the blocking component is in the second position, the stop abuts against the bracket, preventing the blocking component from continuing to move along the slide groove, thereby preventing the blocking component from leaving the slide groove.

[0026] Optionally, in some technical solutions of this utility model, the blocking component further includes a position detection component, which is disposed on the bracket or the drive component and is used to detect the position of the blocking component.

[0027] In this technical solution, the occlusion component also includes a position detection component, which is used to detect the position of the occlusion component, thereby making the drive component control the position of the occlusion component more precise and reducing the probability that the occlusion component does not move to the designated position.

[0028] Optionally, in some technical solutions of this utility model, the shielding component further includes a magnetic element, which is disposed on the drive shaft and can rotate with the drive shaft; the position detection component is a Hall element, which can detect the polarity of the magnetic element.

[0029] In this technical solution, the shielding component also includes a magnetic element, which is mounted on the drive shaft and rotates with it, thus enabling the magnetic element to rotate synchronously with the gear. The position detection component is a Hall element, which detects the polarity of the magnetic element and determines its rotation angle. Since the magnetic element rotates synchronously with the gear, the gear drives the rack, and detecting the angle of the magnetic element determines the position of the rack, thereby achieving the detection of the shielding component's position and further improving the control accuracy of the drive component over the shielding component's position.

[0030] Specifically, the magnetic component can be a permanent magnet or an electromagnet.

[0031] Furthermore, there are two magnetic components, one at each end of the rack. When the blocking component moves to the first position, the position detection component is positioned opposite the magnetic component at one end of the rack. When the blocking component moves to the second position, the position detection component is positioned opposite the magnetic component at the other end of the rack.

[0032] There can also be multiple magnetic components, such as three or four, arranged on the rack along its length. Each magnetic component corresponds to a control position of the blocking component.

[0033] Specifically, the Hall element is a unipolar Hall chip with a magnetic component nested on the drive shaft. When the drive shaft rotates, the N and S poles of the magnetic component rotate accordingly. The Hall element can collect the rotation of the N and S poles to identify the angle of rotation of the drive shaft and thus calculate the distance the blocking component moves.

[0034] Optionally, in some technical solutions of this utility model, the shielding component further includes a circuit board, which is disposed on the driving component; the Hall element is disposed on the circuit board.

[0035] In this technical solution, the shielding assembly also includes a circuit board, on which a Hall element is mounted. This circuit board supports and controls the Hall element. The circuit board is integrated into the drive assembly, reducing its space requirements and improving the structural compactness of the shielding assembly.

[0036] Specifically, the circuit board is arranged in a ring and sleeved on the outside of the drive shaft. While controlling the Hall element, the circuit board can also control the drive components, thereby realizing the integration of the circuit board's functions.

[0037] In some technical solutions of this utility model, optionally, the magnetic component is ring-shaped and sleeved on the drive shaft, located on the side of the circuit board away from the drive assembly; the Hall element is disposed on the circumferential side of the magnetic component.

[0038] In this technical solution, the magnetic component is ring-shaped and sleeved on the drive shaft. The Hall element is set on the circumferential side of the magnetic component, which makes the Hall element more accurate in detecting the magnetic component, thereby improving the control accuracy of the drive assembly on the position of the blocking component.

[0039] Optionally, in some technical solutions of this utility model, the bracket is provided with a mounting hole, and the drive component is installed at the mounting hole; the shielding component also includes a cover plate, which covers the mounting hole and is located on the side of the bracket away from the shielding component.

[0040] In this technical solution, the bracket is provided with mounting holes, and the drive component is installed at the mounting holes, thereby facilitating the installation of the drive component, reducing the installation difficulty, and improving the installation efficiency. The shielding component also includes a cover plate, which covers the mounting holes and is located on the side of the bracket away from the shielding component, thereby achieving waterproofing of the drive component and improving the stability of the drive component during operation.

[0041] Furthermore, the drive assembly is provided with a second mounting part, which has a second screw hole. The screw passes through the second screw hole and is tightened onto the bracket.

[0042] Screws can also be inserted into the second screw hole and tightened onto the cover plate.

[0043] The second aspect of this utility model provides a refrigeration device, including a shielding component as described in any of the above technical solutions.

[0044] Since the refrigeration equipment includes a shielding component as described in any of the above technical solutions, the refrigeration equipment possesses all the beneficial effects of the shielding component as described in any of the above technical solutions, which will not be elaborated further here.

[0045] Furthermore, refrigeration equipment includes refrigerators, freezers, display cases, or wine cabinets.

[0046] Furthermore, the refrigeration equipment includes a housing, which has a compartment, and a bracket is fixed to the housing.

[0047] Optionally, in some technical solutions of this utility model, when the refrigeration equipment is in defrosting mode, the shielding component is in the first position; when the refrigeration equipment is in refrigeration mode, the shielding component is in the second position.

[0048] In this technical solution, when the refrigeration equipment is in defrost mode, the connection between the air duct and the compartment can be blocked by the shielding component, thereby reducing the probability of high-temperature gas in the air duct entering the compartment. This reduces the probability of the compartment temperature rising due to the high temperature at the evaporator during defrost, thus reducing the impact of defrost on the compartment temperature and improving the stability of the compartment temperature. When the refrigeration equipment is in cooling mode, the shielding component moves to the second position, where its impact on the air outlet is minimal, thereby reducing airflow resistance at the air outlet and improving the air outlet's output efficiency.

[0049] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0050] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0051] Figure 1 This is one of the structural schematic diagrams of a shielding component according to an embodiment of the present invention;

[0052] Figure 2 This is a second schematic diagram of the structure of a shielding component according to an embodiment of the present invention;

[0053] Figure 3 This is a schematic diagram of the structure of a shielding component (the shielding component is in the first position) according to an embodiment of the present invention;

[0054] Figure 4 This is a schematic diagram of the structure of a shielding component (the shielding component is in the second position) according to an embodiment of the present invention;

[0055] Figure 5 This is a schematic diagram of the structure of a refrigeration device according to an embodiment of the present invention;

[0056] Figure 6 This is a schematic diagram of the structure of a drive component according to an embodiment of the present invention.

[0057] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0058] 100 Shielding assembly, 110 bracket, 112 slide, 114 mounting hole, 116 first mounting part, 118 first screw hole, 120 shielding component, 130 drive assembly, 132 drive shaft, 134 second mounting part, 136 second screw hole, 142 gear, 144 rack, 150 position detection component, 152 Hall element, 160 magnetic component, 170 circuit board, 180 cover plate, 200 air duct, 300 air outlet, 400 compartment, 500 housing. Detailed Implementation

[0059] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0060] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0061] The following reference Figures 1 to 6 Description of a shielding assembly 100 and a cooling device according to some embodiments of the present invention.

[0062] In one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a shielding assembly 100 is provided for a refrigeration device. The refrigeration device includes an air duct 200, an air outlet 300, and a compartment 400. The air duct 200 can supply air to the compartment 400 through the air outlet 300. The shielding assembly 100 includes a bracket 110, a shielding component 120, and a drive assembly 130. The shielding component 120 is disposed on the bracket 110 and can slide relative to the bracket 110 between a first position and a second position. The drive assembly 130 is connected to the shielding component 120 and is used to drive the shielding component 120 to slide relative to the bracket 110. As shown, Figure 3 As shown, when the shielding component 120 is in the first position, the shielding component 120 blocks the air vent 300, and the air duct 200 is disconnected from the compartment 400; as Figure 4 As shown, when the shielding component 120 is in the second position, the air duct 200 is connected to the compartment 400 through the air outlet 300.

[0063] The shielding assembly 100 provided in this application is used in a refrigeration device. The refrigeration device includes an air duct 200, an air outlet 300, and a compartment 400. The air duct 200 can supply air to the compartment 400 through the air outlet 300, thereby achieving cooling of the compartment 400. The shielding assembly 100 includes a bracket 110, a shielding component 120, and a drive assembly 130. The shielding component 120 is disposed on the bracket 110, and the drive assembly 130 is connected to the shielding component 120. The drive assembly 130 can drive the shielding component 120 to slide between a first position and a second position relative to the bracket 110, so that the shielding component 120 can move to the corresponding position as needed. When the shielding component 120 is in the first position, the shielding component 120 blocks the air outlet 300, and the air duct 200 is disconnected from the compartment 400, so that the shielding component 120 can prevent airflow from entering the compartment 400 from the air duct 200, thereby preventing airflow from affecting the temperature of the compartment 400. When the blocking component 120 is in the second position, the air duct 200 is connected to the compartment 400, and the airflow in the air duct 200 can enter the compartment 400 through the air outlet 300, thereby changing the temperature inside the compartment 400 through the airflow. Since the driving component 130 can drive the blocking component 120 to move to the first position to block the air outlet 300, when the refrigeration equipment is in defrosting mode, the blocking component 120 can block the connection between the air duct 200 and the compartment 400, thereby reducing the probability of high-temperature gas in the air duct 200 entering the compartment 400, reducing the probability of the temperature inside the compartment 400 rising due to the high temperature at the evaporator during defrosting, and thus reducing the impact of the refrigeration equipment on the temperature inside the compartment 400 during defrosting, improving the temperature stability inside the compartment 400.

[0064] Since the drive assembly 130 can drive the shielding component 120 to slide relative to the bracket 110, the sliding shielding component 120 can move away from the area where the air vent 300 is located and move to the second position; when the cooling equipment is in cooling mode, the shielding component 120 moves to the second position, and the shielding component 120 has little impact on the air vent 300, thereby reducing the resistance to airflow at the air vent 300 and improving the air outlet efficiency of the air vent 300.

[0065] Furthermore, air vent 300 is the air inlet 300 of compartment 400, and compartment 400 is the freezing compartment or cold storage compartment of the refrigeration equipment.

[0066] The shielding assembly 100 can be installed inside the compartment 400, and the shielding component 120 shields the side of the air vent 300 closest to the compartment 400. Alternatively, the shielding assembly 100 can be installed inside the air duct 200, and the shielding component 120 shields the side of the air vent 300 furthest from the compartment 400.

[0067] Furthermore, when the shielding component 120 is in the second position, the shielding component 120 can partially shield the air vent 300 or not shield the air vent 300 at all. Thus, the air intake of the room 400 can be controlled by controlling the position of the shielding component 120.

[0068] Furthermore, the bracket 110 is plate-shaped and attached to the side wall of the air duct 200. The bracket 110 is provided with a first mounting part 116, and the first mounting part 116 is provided with a first screw hole 118. The screw passes through the first screw hole 118 and is tightened to the side wall of the air duct 200.

[0069] A fan is installed at the air outlet 300, which drives the airflow in the duct 200 into the room 400. When the fan is a centrifugal fan, a shielding component 120 is installed on the air inlet side of the centrifugal fan, which can block the airflow from entering the centrifugal fan. A duct cover is installed on the air outlet side of the centrifugal fan. When the shielding component 120 does not block the air inlet side of the centrifugal fan, the duct cover can guide the airflow from the air outlet side of the centrifugal fan to various areas of the room 400. When the fan is an axial flow fan, the shielding component 120 is installed on either the air inlet or air outlet side of the axial flow fan. If the shielding component 120 is installed on the air outlet side of the axial flow fan, it can block the airflow from leaving the axial flow fan. If the shielding component 120 is installed on the air inlet side of the axial flow fan, it can block the airflow from entering the axial flow fan.

[0070] The shielding component 120 is plate-shaped and is stacked with the bracket 110. When the shielding component 120 is in the second position, it is located between the bracket 110 and the side wall of the compartment 400. When the refrigeration equipment switches to the defrost mode, the shielding component 120 slides from the side wall of the compartment 400 and the bracket 110 to the first position to block the air vent 300.

[0071] This embodiment provides a shielding component 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0072] like Figure 1 and Figure 2 As shown, the drive assembly 130 includes a drive shaft 132, and the shielding assembly 100 also includes a gear 142 and a rack 144; the gear 142 is connected to the drive shaft 132; the rack 144 is connected to the shielding component 120 and meshes with the gear 142.

[0073] In this embodiment, the drive assembly 130 includes a drive shaft 132, and the blocking assembly 100 includes a gear 142 connected to the drive shaft 132, which drives the gear 142 to rotate. The blocking component 120 includes a rack 144 connected to the blocking component 120 and meshing with the gear 142. When the drive shaft 132 drives the gear 142 to rotate, the gear 142 can drive the rack 144 to move, thereby driving the blocking component 120 to move. The driving of the blocking component 120 is achieved through the cooperation of the gear 142 and the rack 144. No relative slippage occurs between the rack 144 and the gear 142, thus making the control of the position of the blocking component 120 by the drive assembly 130 more accurate and improving the driving precision of the blocking component 120.

[0074] Specifically, the drive assembly 130 may be a motor, such as a stepper motor, with a rack 144 mounted on the drive shaft 132 of the motor.

[0075] A positioning platform is provided on the drive shaft 132, so that the cross-section of the drive shaft 132 is not circular. The cross-section of the inner hole of the gear 142 is the same as that of the drive shaft 132, thereby enabling the drive shaft 132 to stably drive the gear 142 to rotate.

[0076] Furthermore, the drive assembly 130 can also engage with a rack via a gear set. The gear 142 can be one of the gears in the gear set, that is, the gear 142 engages with the rack 144 via another gear, or the gear 142 engages with the rack 144 via multiple other gears.

[0077] Furthermore, the drive assembly 130 can be an electric telescopic rod, the piston of which is connected to the blocking component 120, thereby driving the blocking component 120.

[0078] This embodiment provides a shielding component 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0079] like Figure 1 and Figure 2 As shown, the rack 144 is disposed on the side of the shielding member 120 near the bracket 110 and is arranged linearly; when the shielding member 120 is in the first position, the gear 142 is located at one end of the rack 144; when the shielding member 120 is in the second position, the gear 142 is located at the other end of the rack 144.

[0080] In this embodiment, the rack 144 is disposed on the side of the shielding member 120 near the bracket 110, and the rack 144 is arranged linearly, allowing the shielding member 120 to slide along a linear path, thereby improving the stability of the shielding member 120 during the sliding process. When the shielding member 120 is in the first position, the gear 142 is located at one end of the rack 144; when the shielding member 120 is in the second position, the gear 142 is located at the other end of the rack 144, allowing the shielding member 120 to make fuller use of the length of the rack 144 during movement, thereby increasing the movement distance of the shielding member 120. When the refrigeration equipment is in cooling mode, the shielding member 120 with a larger movement distance can move away from the area where the air vent 300 is located, thereby reducing the impact of the shielding member 120 on the air outlet 300; when the refrigeration equipment is in defrosting mode, the shielding member 120 with a larger movement distance can more accurately block the air outlet 300, thereby reducing the impact of the high-temperature airflow in the air duct 200 on the temperature inside the chamber 400.

[0081] Furthermore, the bracket 110 is disposed on the side wall of the air duct 200, the upper and lower edges of the shielding component 120 are disposed in the groove 112 of the bracket 110, the drive assembly 130 is disposed on the bracket 110, and the rack 144 is disposed on the side of the shielding component 120 near the bracket 110.

[0082] Furthermore, when the shielding member 120 is in the first position, the gear 142 may also be located in the middle of the rack 144 or in other areas of the rack 144.

[0083] When the shielding member 120 is in the second position, the gear 142 may also be located in the middle of the rack 144 or in other areas of the rack 144.

[0084] This embodiment provides a shielding component 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0085] like Figure 1 and Figure 2 As shown, a sliding groove 112 is provided on the bracket 110, and the sliding groove 112 is along the sliding direction of the blocking component 120. Figure 1 Arranged in the direction indicated by the middle arrow A; at least a portion of the shielding component 120 is disposed within the groove 112.

[0086] In this embodiment, a slide groove 112 is provided on the bracket 110. The slide groove 112 is arranged along the sliding direction of the blocking member 120. At least a portion of the blocking member 120 is disposed in the slide groove 112. The movement of the blocking member 120 is guided by the slide groove 112 on the bracket 110, thereby further improving the stability of the movement of the blocking member 120.

[0087] Furthermore, a stop is provided on the blocking component 120. When the blocking component 120 is in the second position, the stop abuts against the bracket 110, so that the blocking component 120 cannot continue to move along the slide groove 112, thereby preventing the blocking component 120 from leaving the slide groove 112.

[0088] Specifically, the bracket 110 is plate-shaped, and the sliding groove 112 is located on the upper and lower sides of the bracket 110. The upper and lower sides of the bracket 110 are provided with outwardly extending flanges, and the sliding groove 112 is provided at the flanges.

[0089] This embodiment provides a shielding component 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0090] like Figure 1 , Figure 2 and Figure 6 As shown, the occlusion assembly 100 also includes a position detection component 150, which is disposed on the bracket 110 or the drive assembly 130 and is used to detect the position of the occlusion component 120.

[0091] In this embodiment, the occlusion component 100 further includes a position detection component 150, which is used to detect the position of the occlusion component 120, thereby making the control of the position of the occlusion component 120 by the drive component 130 more precise and reducing the probability that the occlusion component 120 does not move to the designated position.

[0092] This embodiment provides a shielding component 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0093] like Figure 1 , Figure 2 and Figure 6 As shown, the shielding assembly 100 also includes a magnetic element 160, which is disposed on the drive shaft 132 and can rotate with the drive shaft 132; the position detection component 150 is a Hall element 152, which can detect the polarity of the magnetic element 160.

[0094] In this embodiment, the blocking assembly 100 further includes a magnetic element 160, which is disposed on the drive shaft 132 and can rotate with the drive shaft 132, thereby enabling the magnetic element 160 to rotate synchronously with the gear 142. The position detection component 150 is a Hall element 152, which can detect the polarity of the magnetic element 160 and determine the rotation angle of the magnetic element 160. Since the magnetic element 160 rotates synchronously with the gear 142, the gear 142 drives the rack 144 to move. By detecting the angle of the magnetic element 160, the position of the rack 144 can be determined, thereby realizing the detection of the position of the blocking component 120 and further improving the control accuracy of the driving assembly 130 on the position of the blocking component 120.

[0095] By detecting the position of the obstruction component 120, when the obstruction component 120 is unable to move to the designated position due to obstruction by a foreign object, the abnormal position of the obstruction component 120 can be detected more accurately. This allows the refrigeration equipment to perform corresponding control more promptly. For example, the corresponding structure of the refrigeration equipment can be controlled to remove the foreign object that is obstructing the movement of the obstruction component 120. The foreign object that is obstructing the movement of the obstruction component 120 may be a localized ice block in the air duct 200. The ice block can be melted by turning on the heating component to heat the iced area. Furthermore, when the abnormal position of the obstruction component 120 is detected, the obstruction component 120 can be controlled to reset after the foreign object is removed, and then the obstruction component 120 can be controlled to move to the designated position again, further improving the control accuracy of the drive component 130 on the position of the obstruction component 120.

[0096] Specifically, the magnetic component 160 can be a permanent magnet or an electromagnet.

[0097] Furthermore, there are two magnetic elements 160, which are respectively disposed at both ends of the rack 144. When the blocking member 120 moves to the first position, the position detection member 150 is positioned opposite to the magnetic element 160 at one end of the rack 144. When the blocking member 120 moves to the second position, the position detection member 150 is positioned opposite to the magnetic element 160 at the other end of the rack 144.

[0098] There may be multiple magnetic elements 160, such as three or four, which are disposed on the rack 144 and arranged along the length of the rack 144. Each magnetic element 160 corresponds to a control position of the blocking component 120.

[0099] Specifically, the Hall element 152 is a unipolar Hall chip, with a magnetic element 160 nested on the drive shaft 132. When the drive shaft 132 rotates, the N and S poles of the magnetic element 160 will rotate accordingly. The Hall element 152 can collect the rotation of the N and S poles, thereby identifying the angle of rotation of the drive shaft 132, and thus calculating the distance moved by the blocking component 120.

[0100] This embodiment provides a shielding component 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0101] like Figure 1 , Figure 2 and Figure 6 As shown, the shielding assembly 100 also includes a circuit board 170, which is disposed on the driving assembly 130; the Hall element 152 is disposed on the circuit board 170.

[0102] In this embodiment, the shielding assembly 100 further includes a circuit board 170, on which a Hall element 152 is disposed. This circuit board 170 supports and controls the Hall element 152. The circuit board 170 is disposed on the drive assembly 130, located on the end face of the drive assembly 130, reducing the space occupied by the circuit board 170 and improving the structural compactness of the shielding assembly 100.

[0103] Specifically, the circuit board 170 is arranged in a ring and sleeved on the outside of the drive shaft 132. While controlling the Hall element 152, the circuit board 170 can also control the drive assembly 130, thereby realizing the integration of the functions of the circuit board 170.

[0104] Furthermore, the drive assembly 130 includes a motor, which includes a housing, a stator assembly, and a rotor assembly. The stator assembly is disposed inside the housing, and the rotor assembly is disposed opposite to the stator assembly. The drive shaft 132 is connected to the rotor assembly and extends from the end face of the housing to the outside of the housing. When the stator assembly is energized, it can drive the drive shaft 132 to rotate through the rotor assembly, thereby realizing the output of power.

[0105] Circuit board 170 is located on the end face of the housing.

[0106] This embodiment provides a shielding component 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0107] like Figure 1 , Figure 2 and Figure 6 As shown, the magnetic component 160 is ring-shaped and sleeved on the drive shaft 132, located on the side of the circuit board 170 away from the drive assembly 130; the Hall element 152 is disposed around the magnetic component 160. Figure 6 (In the direction indicated by the middle arrow B) to the side.

[0108] In this embodiment, the magnetic element 160 is ring-shaped and sleeved on the drive shaft 132. The Hall element 152 is disposed on the circumferential side of the magnetic element 160, so that the Hall element 152 can detect the magnetic element 160 more accurately, thereby improving the control accuracy of the drive assembly 130 on the position of the blocking component 120.

[0109] This embodiment provides a shielding component 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0110] like Figure 1 and Figure 2 As shown, the bracket 110 is provided with a mounting hole 114, and the drive assembly 130 is mounted at the mounting hole 114; the shielding assembly 100 also includes a cover plate 180, which covers the mounting hole 114 and is located on the side of the bracket 110 away from the shielding component 120.

[0111] In this embodiment, the bracket 110 is provided with a mounting hole 114, and the drive assembly 130 is mounted at the mounting hole 114, thereby facilitating the installation of the drive assembly 130, reducing the installation difficulty of the drive assembly 130, and improving the installation efficiency of the drive assembly 130. The shielding assembly 100 also includes a cover plate 180, which covers the mounting hole 114 and is located on the side of the bracket 110 away from the shielding component 120, thereby achieving waterproofing of the drive assembly 130 and improving the stability of the drive assembly 130 during operation.

[0112] Furthermore, the drive assembly 130 is provided with a second mounting portion 134, the second mounting portion 134 is provided with a second screw hole 136, the screw passes through the second screw hole 136 and is screwed onto the bracket 110.

[0113] Screws can also be inserted into the second screw hole 136 and tightened onto the cover plate 180.

[0114] Specifically, the cover plate 180 is placed over the outside of the drive assembly 130 and is connected to the bracket 110.

[0115] In one embodiment of the present invention, a cooling device is provided, including a shielding component 100 as described in any of the above embodiments.

[0116] Since the refrigeration device includes the shielding component 100 as described in any of the above embodiments, the refrigeration device has all the beneficial effects of the shielding component 100 as described in any of the above embodiments, which will not be repeated here.

[0117] Furthermore, refrigeration equipment includes refrigerators, freezers, display cases, or wine cabinets.

[0118] Furthermore, the refrigeration equipment includes a housing 500, the housing 500 is provided with a compartment 400, and a bracket 110 is fixed on the housing 500.

[0119] This embodiment provides a refrigeration device, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0120] like Figure 3 and Figure 4 As shown, when the refrigeration equipment is in defrosting mode, the shielding component 120 is in the first position; when the refrigeration equipment is in refrigeration mode, the shielding component 120 is in the second position.

[0121] In this embodiment, when the refrigeration equipment is in defrost mode, the shielding component 120 can block the connection between the air duct 200 and the compartment 400, thereby reducing the probability of high-temperature gas in the air duct 200 entering the compartment 400. This reduces the probability of the temperature inside the compartment 400 rising due to the high temperature at the evaporator during defrost, thus reducing the impact of defrost on the temperature inside the compartment 400 and improving the temperature stability inside the compartment 400. When the refrigeration equipment is in cooling mode, the shielding component 120 moves to the second position, where its impact on the air outlet 300 is minimal, thereby reducing the airflow resistance at the air outlet 300 and improving the air outlet efficiency.

[0122] In the claims, description, and accompanying drawings of this utility model, the term "plural" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this utility model. The terms "connect," "install," "fix," etc., should be interpreted broadly. For example, "connect" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood based on the specific circumstances described above.

[0123] In the claims, description, and drawings of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In the claims, description, and drawings of this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0124] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A screening assembly, characterized by The shielding assembly is used in a refrigeration device, which includes an air duct, an air outlet, and a compartment. The air duct is capable of supplying air to the compartment through the air outlet. The shielding assembly includes: support; A shielding component is disposed on the bracket, and the shielding component is slidable relative to the bracket between a first position and a second position; A driving component, connected to the blocking component, is used to drive the blocking component to slide relative to the bracket; When the shielding component is in the first position, the shielding component blocks the air vent, and the air duct is disconnected from the compartment; When the shielding component is in the second position, the air duct is connected to the compartment through the air outlet.

2. The obscuration assembly of claim 1, wherein, The driving assembly includes a driving shaft, and the shielding assembly further includes: Gear, the gear being connected to the drive shaft; A rack, which is connected to the shielding component and meshes with the gear.

3. A screening assembly according to claim 2, characterised in that, The rack is disposed on the side of the shielding component near the bracket and is arranged linearly; When the blocking component is in the first position, the gear is located at one end of the rack; When the shielding component is in the second position, the gear is located at the other end of the rack.

4. The obscuration assembly of claim 2, wherein, The bracket is provided with a sliding groove, which is arranged along the sliding direction of the shielding component; At least a portion of the shielding component is disposed within the groove.

5. The obscuration assembly of claim 2, wherein, Also includes: A position detection component is disposed on the bracket or the drive assembly and is used to detect the position of the blocking component.

6. A screening assembly according to claim 5, wherein, Also includes: A magnetic component is disposed on the drive shaft and is capable of rotating with the drive shaft; The position detection component is a Hall element, which can detect the polarity of the magnetic component.

7. A screening assembly according to claim 6, wherein, Also includes: A circuit board, the circuit board being disposed on the drive assembly; The Hall element is disposed on the circuit board.

8. A screening assembly according to claim 7, characterised in that, The magnetic component is ring-shaped and sleeved on the drive shaft, located on the side of the circuit board away from the drive assembly; The Hall element is disposed on the circumferential side of the magnetic component.

9. A screening assembly according to any one of claims 1 to 8, wherein, The bracket is provided with mounting holes, and the drive assembly is mounted at the mounting holes; The shielding assembly also includes a cover plate that covers the mounting hole and is located on the side of the bracket away from the shielding component.

10. A refrigeration appliance characterized in that, Includes the shielding component as described in any one of claims 1 to 9.

11. The refrigeration appliance of claim 10, wherein, When the refrigeration equipment is in defrost mode, the shielding component is in the first position; When the refrigeration device is in refrigeration mode, the shielding component is in the second position.

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