Air door structure and refrigeration equipment

Abstract

The present invention provides a damper structure and a refrigeration device. The damper structure includes a shell and a damper cover. In the damper structure and the refrigeration device provided by the present invention, the damper cover can be moved along a first moving path to form an escape area inside the shell, ensuring that the damper cover can rotate inside the shell, and the second moving path can move the damper cover toward a direction close to a vent while the damper cover rotates, so that the volume of the escape space required by the damper cover is reduced, that is, even if the space inside the shell is reduced, the purpose of reducing the volume of the damper is achieved without affecting the inlet and outlet air volume of the damper assembly and ensuring the reliability of the damper operation.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration equipment, in particular to a damper structure and refrigeration equipment. Background Art

[0002] At present, a damper is usually provided in the air duct of the refrigeration equipment to adjust the air volume in the refrigeration equipment, thereby realizing the temperature control in the refrigeration equipment. The existing damper is generally an electric damper, and its damper cover plate adopts a rotation around an axis to open and close the cover plate. However, the rotation axis of the damper cover plate in the existing electric damper is located at the edge of the damper cover plate, and the space required during its rotation is a fan-shaped area with the width of the damper cover plate as the radius, that is, it requires a avoidance space not less than the fan-shaped area to be reserved inside the housing of the damper, so that the overall volume of the damper cannot be reduced. Summary of the invention

[0003] In order to solve the technical problem of the damper being too large in the prior art, a damper structure and a refrigeration device are provided in which a damper cover plate can move inside a housing to reduce the avoidance space required for the damper cover plate.

[0004] A damper structure, comprising:

[0005] A housing, wherein a vent is provided on the housing;

[0006] A damper cover plate, the damper cover plate being rotatably disposed in the housing;

[0007] The damper cover has a first moving path and a second moving path;

[0008] The movement range of the first movement path allows the damper cover to rotate freely in the housing;

[0009] The movement range of the second movement path allows the maximum distance between the damper cover plate and the vent to be less than or equal to a preset distance during the free rotation of the damper cover plate;

[0010] The preset distance is smaller than the width of the damper cover.

[0011] The first moving path has a first position and a second position connected to the second moving path. When the damper cover is in the first position, the damper cover closes the vent. When the damper cover is in the second position, the rotation of the damper cover does not interfere with the vent.

[0012] A third position is provided on the second moving path. When the damper cover moves from the second position to the third position, an angle between the damper cover and the air flow direction of the vent gradually decreases.

[0013] The damper cover plate also includes a length adjustment mechanism, which is used to adjust the length of the damper cover plate so that when in the first position, the length of the damper cover plate is greater than the length of the vent, and when in the second position, the length of the damper cover plate is less than or equal to the length of the vent.

[0014] The damper cover plate includes a first plate and a second plate which are sequentially arranged along a length direction, the length adjustment mechanism is arranged between the first plate and the second plate, and the length adjustment mechanism can adjust the distance between the first plate and the second plate.

[0015] The housing is provided with a guide rail, and the damper cover plate can move along the first moving path and the second moving path under the limitation of the guide rail.

[0016] A rotating shaft is arranged in the middle of the damper cover plate, and the rotating shaft is movably arranged in the guide rail.

[0017] The damper structure further includes a driving mechanism, which is disposed on the housing and is drivingly connected to the rotating shaft.

[0018] A heating mechanism is arranged on the housing and / or the damper cover.

[0019] A heat insulation mechanism is arranged on the damper cover plate.

[0020] A refrigeration device comprises the above-mentioned damper structure.

[0021] The damper structure and refrigeration equipment provided by the present invention are characterized in that the damper cover plate can move along a first moving path to form an avoidance area inside the shell, thereby ensuring that the damper cover plate can rotate inside the shell; and the second moving path can move the damper cover plate toward the vent while the damper cover plate rotates, thereby reducing the volume of the avoidance space required for the damper cover plate. That is, even if the space inside the shell is reduced, the purpose of reducing the volume of the damper is achieved without affecting the inlet and outlet air volume of the damper assembly and ensuring the reliability of the damper operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of the damper structure of an embodiment provided by the present invention;

[0023] Figure 2 An exploded view of the damper structure of an embodiment provided by the present invention;

[0024] Figure 3 A cross-sectional view of the damper cover plate of the embodiment provided by the present invention when it is in a first position;

[0025] Figure 4 A cross-sectional view of the damper cover plate of the embodiment provided by the present invention when it is in the second position;

[0026] Figure 5 A cross-sectional view of the damper cover of the embodiment provided by the present invention when switching from the second position to the third position;

[0027] Figure 6 A cross-sectional view of the damper cover plate of the embodiment provided by the present invention when it is in the third position;

[0028] In the figure:

[0029] 1. Shell; 11. Ventilation port; 2. Air door cover; 4. Length adjustment mechanism; 21. First plate; 22. Second plate; 12. Guide rail; 23. Rotating shaft. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] like Figures 1 to 6 The damper structure shown comprises: a housing 1, on which a vent 11 is arranged; a damper cover plate 2, which is rotatably arranged in the housing 1; the damper cover plate 2 has a first moving path and a second moving path; the moving stroke of the first moving path allows the damper cover plate 2 to rotate freely in the housing 1; the moving stroke of the second moving path allows the damper cover plate 2 to rotate freely in the process of free rotation, and the maximum distance between the damper cover plate 2 and the vent 11 is less than or equal to a preset distance; the preset distance is less than the width of the damper cover plate 2. The damper cover plate 2 can move in the first moving path to form an escape area inside the housing 1, so that the damper cover plate 2 can rotate inside the housing 1; the second moving path can move the damper cover plate 2 toward the direction of the vent 11 while the damper cover plate 2 rotates, so that the volume of the escape space required by the damper cover plate 2 is reduced, that is, even if the space inside the housing 1 is reduced, the purpose of reducing the volume of the damper is achieved without affecting the air volume of the damper assembly and ensuring the reliability of the damper operation.

[0032] Taking the example that the vent 11 is in a horizontal plane and the damper cover 2 has a first edge that rotates upward and a second edge that rotates downward, the housing 1 is a groove structure with an opening, the vent 11 is arranged on the bottom surface of the groove, and the damper cover 2 is arranged on the vent 11 to close the vent 11. At this time, the damper cover 2 is parallel to the horizontal plane. When the vent 11 needs to be opened, the damper cover 2 starts to move along the first moving path, and the damper cover 2 gradually moves above the vent 11 and finally reaches the connection between the first moving path and the second moving path. Then, when the second edge of the damper cover 2 rotates downward, it will not interfere with the edge of the vent 11. However, in order to avoid the first edge of the damper cover 2 The edge will protrude from the opening of the shell 1, therefore, at this time, the damper cover plate 2 can only swing within a certain angle, wherein the swinging angle is the maximum value of the rotation angle of the damper cover plate 2 when the first edge of the damper cover plate 2 is about to protrude from the opening of the groove. It can also be said that at this time, the damper cover plate 2 is still in an inclined state, and the damper cover plate 2 still blocks the vent 11 to a certain extent. At this time, the damper structure has not reached the state of maximum air volume. In order to make the damper structure reach the maximum air volume, it is necessary to continue to rotate the damper cover plate 2 so that the damper cover plate 2 is parallel to the wind direction of the vent 11. Therefore, at the connection between the first moving path and the second moving path, the damper cover plate 2 is tilted to a rotatable The maximum angle of movement, at this time, the second edge of the damper cover 2 is about to enter the vent 11, and then the damper cover 2 moves along the second movement path. At this time, the movement of the damper cover 2 can be decomposed into three movement directions. The first movement direction is to move toward the side wall of the shell 1. The movement in this direction can make the edge of the damper cover 2 that rotates downward move toward the middle of the vent 11, thereby avoiding the interference between the second edge of the damper cover 2 and the edge of the vent 11. The second movement direction is to move in the direction close to the vent 11. The movement in this direction can gradually increase the distance between the first edge of the damper cover 2 and the opening of the groove, thereby providing avoidance space for the continued rotation of the damper cover 2. The third movement direction is that the damper cover plate 2 rotates around its own rotation axis, thereby gradually reducing the angle between the damper cover plate 2 and the air flow direction of the vent 11. At the same time, because the second movement direction provides an avoidance space for the damper cover plate 2, the continued rotation of the damper cover plate 2 will not protrude from the opening of the shell 1; and when the damper cover plate 2 moves to the set position on the second movement path, the damper cover plate 2 and the shell 1 remain relatively still. At this time, the ventilation volume of the damper structure reaches a maximum, and the airflow can enter the shell 1 through the vent 11 and flow out of the shell 1 from the opening of the shell 1. The entire process completes the movement process of the damper structure from closing the vent 11 to the damper structure The ventilation volume of the damper cover plate 2 reaches the maximum.

[0033] The preset distance is the distance from the opening of the housing 1 to the vent 11 .

[0034] from Figure 2 It can be seen that a ventilation pipe is provided at the ventilation opening 11 of the shell 1 , and the length of the ventilation pipe is greater than the thickness of the shell 1 . The preset distance is the dimension between the end face of the ventilation pipe extending into the shell 1 and the second side face of the shell 1 .

[0035] Furthermore, the length of the damper cover plate 2 extending into the ventilation pipe is less than the length of the ventilation pipe, thereby ensuring that the damper cover plate 2 will not protrude from the ventilation pipe and affect the normal use of the damper structure.

[0036] The first moving path has a first position and a second position connected to the second moving path. When the damper cover plate 2 is in the first position, the damper cover plate 2 closes the vent 11. When the damper cover plate 2 is in the second position, the rotation of the damper cover plate 2 does not interfere with the vent 11. At this time, the damper cover plate 2 can enter the vent 11 when rotating.

[0037] A third position is set on the second moving path. When the damper cover 2 moves from the second position to the third position, the angle between the damper cover 2 and the air flow direction of the vent 11 gradually decreases. When the damper cover 2 moves to the third position, it indicates that the damper cover 2 has the smallest impact on the air volume of the vent 11 at this time, that is, the damper structure reaches the maximum ventilation volume at this time.

[0038] Preferably, when the damper cover plate 2 is in the third position, the damper cover plate 2 is parallel to the air flow direction of the vent 11 .

[0039] In the prior art, in order to enable the damper cover plate 2 to completely cover the vent 11, the length of the damper cover plate 2 is generally greater than the length of the vent 11. Therefore, in order to prevent the damper cover plate 2 from being unable to enter the vent 11 during the rotation process, the damper cover plate 2 further includes a length adjustment mechanism 4, which is used to adjust the length of the damper cover plate 2, so that when in the first position, the length of the damper cover plate 2 is greater than the length of the vent 11, and when in the second position, the length of the damper cover plate 2 is less than or equal to the length of the vent 11. At this time, the damper cover plate 2 can extend into the vent 11 and continue to rotate to switch to the third position.

[0040] The damper cover plate 2 includes a first plate 21 and a second plate 22 sequentially arranged along a length direction, the length adjustment mechanism 4 is arranged between the first plate 21 and the second plate 22 , and the length adjustment mechanism 4 can adjust the distance between the first plate 21 and the second plate 22 .

[0041] Preferably, the length adjustment structure is a spring. When the damper cover 2 moves to the first position, the spring increases the distance between the first plate 21 and the second plate 22, thereby ensuring that the damper cover 2 closes the vent 11. When the damper cover 2 needs to be rotated and extended into the vent 11, the spring is compressed. At this time, the distance between the first plate 21 and the second plate 22 is reduced, thereby shortening the length of the damper cover 2.

[0042] Since there is a gap between the first plate 21 and the second plate 22 , a deformable sealing structure is provided at the gap to ensure the sealing of the damper cover plate 2 .

[0043] The housing 1 is provided with a guide rail 12, and the damper cover plate 2 can move along the first moving path and the second moving path under the limitation of the guide rail 12. Preferably, the guide rail 12 is V-shaped, and the first side of the V-shape is a line segment away from the vent 11, and the angle of the V-shape is an acute angle. Furthermore, the length of the second side is less than the length of the first side.

[0044] A rotating shaft 23 is provided in the middle of the damper cover plate 2, and the rotating shaft 23 is movably provided in the guide rail 12. The rotating shaft 23 is provided in the middle of the damper cover plate 2, so that the swing range of the damper cover plate 2 can be reduced, and the damper cover plate 2 can be moved as a whole along with the limit of the guide rail 12 by moving the rotating shaft 23.

[0045] The damper structure further includes a driving mechanism, which is disposed on the housing 1 and is drivingly connected to the rotating shaft 23. The driving mechanism can drive the damper cover plate 2 to move along the first moving path and the second moving path, and can also cause the damper cover plate 2 to rotate along the axis of the rotating shaft 23.

[0046] The housing 1 is provided with a heating mechanism. Preferably, the heating mechanism is provided around the guide rail 12 to prevent the guide rail 12 from frosting and freezing and affecting the movement of the damper cover 2.

[0047] The damper cover plate 2 is provided with a heating mechanism. By heating the damper cover plate 2, it is ensured that the damper cover plate 2 reliably seals the vent 11, and the heating mechanism on the housing 1 is also assisted to prevent the guide rail 12 from frosting.

[0048] The damper cover plate 2 is provided with a heat insulating mechanism. The heat insulating mechanism is used to increase the heat insulating effect of the damper structure, ensuring that the temperature on both sides of the damper structure is not transferred, and can also achieve a sealing effect. Preferably, the heat insulating mechanism is a heat insulating sponge.

[0049] A refrigeration device comprises the above-mentioned damper structure.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A damper structure, characterized in that: include: A housing (1), wherein a vent (11) is provided on the housing (1); A damper cover plate (2), the damper cover plate (2) being rotatably arranged in the housing (1); The damper cover plate (2) has a first moving path and a second moving path; The movement range of the first movement path allows the damper cover plate (2) to rotate freely in the housing (1); The movement stroke of the second movement path allows the damper cover plate (2) to rotate freely, with the maximum distance between the damper cover plate (2) and the vent (11) being less than or equal to a preset distance; The preset distance is smaller than the width of the damper cover plate (2); The first moving path has a first position and a second position connected to the second moving path; when the damper cover (2) is in the first position, the damper cover (2) closes the vent (11); when the damper cover (2) is in the second position, the rotation of the damper cover (2) does not interfere with the vent (11); A third position is provided on the second moving path, and when the damper cover plate (2) moves from the second position to the third position, the angle between the damper cover plate (2) and the airflow direction of the vent (11) gradually decreases.

2. The damper structure according to claim 1, characterized in that: The damper cover plate (2) further comprises a length adjustment mechanism (4), wherein the length adjustment mechanism (4) is used to adjust the length of the damper cover plate (2), so that when in the first position, the length of the damper cover plate (2) is greater than the length of the vent (11), and when in the second position, the length of the damper cover plate (2) is less than or equal to the length of the vent (11).

3. The damper structure according to claim 2, characterized in that: The damper cover plate (2) comprises a first plate (21) and a second plate (22) which are arranged in sequence along a length direction; the length adjustment mechanism (4) is arranged between the first plate (21) and the second plate (22); and the length adjustment mechanism (4) is capable of adjusting the distance between the first plate (21) and the second plate (22).

4. The damper structure according to claim 1, characterized in that: A guide rail (12) is provided on the housing (1), and the damper cover plate (2) is capable of moving along the first moving path and the second moving path under the limitation of the guide rail (12).

5. The damper structure according to claim 4, characterized in that: A rotating shaft (23) is provided in the middle of the damper cover plate (2), and the rotating shaft (23) is movably arranged in the guide rail (12).

6. The damper structure according to claim 5, characterized in that: The damper structure further comprises a driving mechanism, the driving mechanism being arranged on the housing (1) and being drivingly connected to the rotating shaft (23).

7. The damper structure according to claim 1, characterized in that: A heating mechanism is provided on the housing (1) and / or the damper cover plate (2).

8. The damper structure according to claim 1, characterized in that: A heat insulation mechanism is provided on the damper cover plate (2).

9. A refrigeration device, characterized in that: The invention comprises the damper structure according to any one of claims 1 to 8.

Images