A curved air door used in an air duct of a cabinet air conditioner and a cabinet air conditioner

Abstract

The present invention discloses a curved damper on an air conditioner and a cabinet air conditioner, in order to solve the problem that the center of mass of the curved damper deviates to the inner side of the curve, so that the volute cover cannot always be buckled with the volute during the production and assembly process, thereby affecting the assembly efficiency. The present invention discloses a curved damper for being arranged between the volute and the volute cover assembly of the air conditioner, wherein the curved damper forms an inner concave surface and an outer convex surface on both sides of its door plate body, and the door plate body of the curved damper has a lighter mass on the inner concave surface side than on the outer convex surface side, so that the center of mass of the curved damper is close to the outer convex surface. The present invention can reduce the mass on the inner side of the curved damper, so that the center of mass of the curved damper is offset to the side of the arc plate, thereby ensuring that the curved damper does not tilt during the production and assembly process, thereby improving the assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a curved damper used in an air duct of a cabinet air conditioner and a cabinet air conditioner. Background Art

[0002] In order to achieve the best air flow smoothness and better sealing effect, the curved damper of the current cabinet air conditioner generally adopts a contoured design, and requires a better self-insulation effect to prevent condensation from occurring during the operation of the air conditioner indoor unit, causing other problems.

[0003] The curved damper is designed to imitate the volute shape and maintain the integrity of the volute to the greatest extent to avoid air leakage. However, since the volute shape is a bionic curve, the mass center of the curved damper is biased to the inside of the curve, causing the part to always deflect to one side during production and assembly, so that the volute cover cannot always be accurately buckled with the volute, affecting assembly efficiency. Summary of the invention

[0004] In view of this, the present invention discloses a curved damper for use in a cabinet air-conditioning duct and a cabinet air-conditioner, which is used to solve the problem that the center of mass of the curved damper is biased toward the inside of the curve, so that the volute cover cannot always be buckled together with the volute during the production and assembly process, affecting the assembly efficiency.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution:

[0006] A first aspect of the present invention discloses a curved air door for use in an air duct of a cabinet air conditioner, wherein the curved air door forms an inner concave surface and an outer convex surface on both sides of its door panel body, the door panel body of the curved air door has a lighter mass on the inner concave surface side than on the outer convex surface side, and the center of mass of the curved air door is close to the outer convex surface.

[0007] Furthermore, the door panel body of the curved air door includes: a curved shell body, the curved shell body having a concave side and a convex side, the convex side forming the outer convex surface, and the concave side forming a concave cavity; an insulation board embedded in the concave cavity, which has a mass density smaller than that of the curved shell body, and its wall surface facing the airflow side of the duct forms the inner concave surface, and the inner concave surface has a shape adapted to the inner wall surface of the air-conditioning duct position where it is set.

[0008] Furthermore, the main body of the curved shell is an arc-shaped plate, and the thickness of the arc-shaped plate in the length direction gradually decreases from the middle part to both ends.

[0009] Furthermore, the weights of the two ends of the curved shell body along the direction of the arc plate generatrix are different. The end with a larger weight along the generatrix is ​​located on one side of the volute, and the other end with a smaller weight along the generatrix is ​​located on one side of the volute cover.

[0010] Furthermore, the curved shell body portion is provided with a first side strip and a second side strip extending along the length direction of the curved plate at both ends along the generatrix direction of the curved plate, wherein the first side strip is located on one side of the volute and its weight is greater than that of the second side strip.

[0011] The side surfaces of the first side strip and the second side strip are both provided with curved air door rotating bosses, the protruding direction of the curved air door rotating boss on the first side strip is the same as the protruding direction of the first protrusion, the protruding direction of the curved air door rotating boss on the second side strip is opposite to the protruding direction of the first protrusion, and the height of the curved air door rotating boss on the first side strip is equal to the height of the first protrusion.

[0012] A limiting rib is arranged in the cavity, and a limiting groove cooperating with the limiting rib is arranged on the insulation board.

[0013] The second aspect of the present invention discloses a cabinet air conditioner, which is provided with upper and lower air outlets, a volute and a volute cover are provided on the air duct connecting the upper and lower air outlets, and the curved air door described in the first aspect is provided between the volute and the volute cover.

[0014] Furthermore, the inner concave surface of the curved damper forms an arc surface that matches the inner wall surface of the volute.

[0015] Furthermore, the volute forms a groove, and the curved damper is swingably embedded in the groove, and when it does not swing, the arc surface formed by its inner concave surface and the arc surface formed by the inner wall surface of the volute are on the same arc surface.

[0016] Beneficial effect: The curved shell body of the present invention has a concave side and a convex side, and the door panel body of the curved damper has a lighter mass on the inner concave side than on the outer convex side, so that the center of mass of the curved damper is close to the outer convex surface, so that the damper can remain upright without tilting during assembly and installation, thereby improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present invention will become more apparent by describing in detail its exemplary embodiments with reference to the accompanying drawings. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0018] Figure 1 An exploded view showing the overall structure of Example 1

[0019] Figure 2 An axonometric view of the curved damper body in Embodiment 1 is shown;

[0020] Figure 3A schematic diagram of the insulation board in Example 1 is shown;

[0021] Figure 4 Shows Figure 2 A local enlarged view of point A;

[0022] Figure 5 A rear view of the curved damper in Embodiment 1 is shown;

[0023] Figure 6 Shows Figure 5 A local enlarged view of point B;

[0024] Figure 7 A schematic diagram of the assembly of the curved damper described in Example 1 is shown. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0027] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0028] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0029] Since the volute shape line in the prior art is a bionic curve, the mass center of the curved damper is biased to the inner side of the curve, which causes the part to always deflect to one side during production and assembly, so that the volute cover cannot always be accurately buckled with the volute. In view of this, the present invention improves the curved damper, sets the mass of the inner concave side to be lighter than the outer convex side, and the mass center is close to the outer convex side, so that the curved damper always remains upright when installed and does not fall over, saving installation time and improving installation efficiency.

[0030] To further illustrate the technical solution of the present invention, Figure 1-Figure 7 , the following specific embodiments are provided.

[0031] Example 1

[0032] In this embodiment, a curved air door for use in an air duct of a cabinet air conditioner is provided. Figure 1-Figure 3 , Figure 7 As shown, the curved damper forms an inner concave surface and an outer convex surface on both sides of its door panel body 10. The door panel body 10 of the curved damper has a lighter mass on the inner concave surface side than on the outer convex surface side, and the center of mass of the curved damper is close to the outer convex surface.

[0033] Furthermore, the door panel body 10 of the curved air door includes: a curved shell, the curved shell having a concave side and a convex side, the convex side forming the outer convex surface, and the concave side forming a concave cavity; an insulation board 30, embedded in the concave cavity, having a mass density less than that of the curved shell, and its wall surface facing the airflow side of the duct forms the inner concave surface, and the inner concave surface has a shape adapted to the inner wall surface of the air-conditioning duct position where it is set.

[0034] In the present embodiment, when the curved damper is in the maximum open state, the insulation plate 30 has the inner concave surface which is arc-fitted with the inner wall surface 41 of the volute 40, so as to reduce the resistance of air flow. Meanwhile, the insulation plate 30 is arranged in the concave cavity, so as to reduce the opening and closing resistance of the curved damper, and make the center of mass of the curved damper be biased toward the convex side. During assembly, the curved damper is kept in an upright state without falling over, so as to improve the assembly efficiency. Meanwhile, the insulation plate 30 can also prevent the condensation problem during the operation of the air-conditioning indoor unit.

[0035] Optionally, the shape of the curved damper in the present embodiment may be "bow-shaped", and the concave cavity of the curved damper is arranged on one side of the concave surface of the door panel body 10, and the concave cavity thereby reduces the mass of the inner side of the door panel body 10 (the side where the concave cavity is arranged), so that the curved damper remains vertical during installation and is less likely to tilt, thereby enabling the installation position to be aligned when the volute 40 and the volute cover 50 are closed (the curved damper needs to be installed at the same time when the volute 40 and the volute cover 50 are closed).

[0036] In this embodiment, a plurality of reinforcing ribs interlaced along the circumferential direction and the generatrix direction of the convex arc surface can be arranged in the concave cavity to divide the concave cavity into a plurality of small grooves, which can reduce the mass of the concave side of the door panel body 10, shift the center of mass of the curved damper toward the convex arc side, and strengthen the overall strength of the curved damper. However, in order to further reduce the mass of the concave side of the door panel body 10 and shift the curved damper toward the convex side to a greater extent, it is the best way to choose not to add the reinforcing ribs in this embodiment. However, the concave cavity in this embodiment also includes a small groove structure formed by the reinforcing ribs.

[0037] In this embodiment, the concave cavity can be set at the center of the door panel body 10, that is, the inner side surface of the concave cavity is equidistant from the four sides of the door panel body 10, so that the center of mass of the door panel body 10 is located at its own center position, making the door panel body 10 more stable in an upright state and easy to assemble.

[0038] The main body of the curved shell is an arc-shaped plate, and the thickness of the arc-shaped plate in the length direction gradually decreases from the middle part to both ends.

[0039] In this embodiment, the length direction of the arc plate refers to the length along the circumferential direction of the arc plate. The center of mass of the door panel body 10 can be further biased toward the center position of the convex arc surface.

[0040] The end of the curved shell body with greater weight along the direction of the busbar is located on the side of the volute 40, and the other end with less weight along the direction of the busbar is located on the side of the volute cover 50, so that the center of mass of the door panel body 10 is offset downward along the busbar of the arc plate, making the curved damper more stable and less likely to tilt in an upright state.

[0041] Specifically, Figure 1 and Figure 7 As shown, the two ends of the main part of the curved shell along the generatrix direction of the curved plate are respectively provided with a first side strip 12 and a second side strip 13 extending along the length direction of the curved plate, wherein the first side strip 12 is located on one side of the volute 40, and its weight is greater than the weight of the second side strip 13. During installation, the first side strip 12 is located on one side of the volute 40, so that the bottom weight of the curved damper is greater than the top weight when it is upright, and it is more stable and not easy to tilt.

[0042] Furthermore, first protrusions 121 are provided at intervals on the side surface of the first side strip 12, which are opposite to the volute 40. After the curved damper is installed, in order to ensure the airtightness of the curved damper when it is closed, the first protrusions 121 are in contact with the inner wall 42 of the air duct of the volute 40 to reduce the air leakage area. At the same time, when the curved damper is opened and closed, the first protrusions 121 are provided to reduce the contact area between the first protrusions 121 and the inner wall 42 of the air duct of the volute 40, thereby reducing the resistance of the curved damper to open and close, reducing the deformation of the curved damper, and preventing the curved damper from being stuck.

[0043] Further, if Figure 4-Figure 6 As shown, the sides of the first side strip 12 and the second side strip 13 are provided with curved damper rotating bosses 23, the protruding direction of the curved damper rotating bosses 23 on the first side strip 12 is the same as the protruding direction of the first protrusion 121, the protruding direction of the curved damper rotating bosses 23 on the second side strip 13 is opposite to the protruding direction of the first protrusion 121, and the height of the curved damper rotating bosses 23 on the first side strip 12 is equal to the height of the first protrusion 121. When the curved damper is installed, the curved damper can be kept in a vertical state without tilting, thereby improving installation efficiency.

[0044] The curved damper rotating boss 23 of each of the first side strip 12 and the second side strip 13 is provided with a shaft 231 for guiding and limiting purposes, the shaft 231 on the first side strip 12 and the shaft on the second side strip 13 are coaxially arranged, and arc-shaped long grooves are arranged on the volute 40 and the volute cover 50, and the shaft 231 is arranged in the corresponding arc-shaped long groove during assembly.

[0045] Furthermore, a limiting rib b is provided in the concave cavity, and a limiting groove 31 cooperating with the limiting rib is provided on the insulation board 30 .

[0046] In this embodiment, the limiting ribs b are provided to play the role of installation positioning and fool-proofing. The number of the limiting ribs b can be set to two rows, and the limiting grooves 31 of the insulation board 30 are set to two rows, corresponding to the positions of the limiting ribs b.

[0047] In this embodiment, a plurality of convex bumps may be provided on the convex side surface of the arc plate 11, wherein the convex bumps may be adhered to the convex surface of the arc plate 11 to reduce the collision sound when the curved damper rotates.

[0048] In this embodiment, the first side strip 12, the second side strip 13 and the arc-shaped plate can be integrally formed by injection molding; or they can be made of metal and fixed together by welding.

[0049] In order to ensure the structural reliability and strength of the curved damper during movement, the door panel body 10 is made of relatively high-strength engineering materials, such as engineering plastics such as ABS, PC, HIPS, metal materials such as aluminum alloy, and composite materials such as fiberglass.

[0050] Preferably, the insulation board 30 is an insulation board with a density less than that of the door panel body 10. In this embodiment, the insulation board 30 can first reduce the area of ​​the door panel body 10 to reduce the door opening resistance. Specifically, the insulation board is made of foam material. The insulation board adopts foam material with low mass density, good insulation effect and low cost to ensure the thermal insulation of the curved damper component itself and eliminate the condensation problem during the operation of the air conditioner indoor unit. In order to obtain higher installation and assembly efficiency, the embedded insulation board 30 of this embodiment is preferably made of hard foam, and the materials include EPS, PU and the like. However, in the case of automated assembly and assembly efficiency, the embedded insulation board can be made of soft foam material, or other sponge materials, such as PE, XPE, PU and the like.

[0051] The foam material has a low density and has little effect on the center of mass position of the curved damper component. The center of mass of the curved damper structure is on the outer line of the curve, reducing the probability of it tilting inward during assembly production.

[0052] Example 2

[0053] This embodiment provides a cabinet air conditioner, such as Figure 1 and Figure 7 As shown, it is provided with upper and lower air outlets, and a volute 40 and a volute cover 50 are provided on the air duct connecting the upper and lower air outlets, and the curved air door described in Example 1 is provided between the volute 40 and the volute cover 50.

[0054] The volute 40 and the volute cover 50 are respectively provided with corresponding arc-shaped long grooves, each of the shafts is provided with a sleeve 80, each of the sleeves 80 is located in the arc-shaped long groove, and the curved damper is rotatably installed between the volute 40 and the volute cover 50. When the curved damper rotates, the sleeve 80 slides in the arc-shaped long groove to prevent the curved damper from being stuck.

[0055] Furthermore, the inner concave surface of the curved damper forms an arc surface that matches the inner wall surface 41 of the volute 40. When the curved damper is opened at a maximum angle, the inner concave surface of the curved damper connects with the inner wall surface of the volute to form a curved air duct, which can reduce exhaust resistance.

[0056] Furthermore, the volute 40 forms a groove, and the curved damper is swingably embedded in the groove, and when it does not swing, the arc surface formed by its inner concave surface and the arc surface formed by the inner wall surface of the volute are on the same arc surface.

[0057] The volute 40 is covered with the volute cover 50, and an air duct is formed between the groove of the volute 40 and the volute cover 50, wherein a curved air door is rotatably installed in the air duct to adjust the air volume of the air conditioner.

[0058] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A curved damper for a cabinet air conditioner duct, wherein the cabinet air conditioner duct is provided with upper and lower air outlets, a volute and a volute cover are provided on the cabinet air conditioner duct connecting the upper and lower air outlets, and the curved damper is arranged between the volute and the volute cover, characterized in that: The curved damper includes a door panel body, an inner concave surface and an outer convex surface are formed on both sides of the door panel body, the door panel body has a lighter mass on the inner concave surface side than on the outer convex surface side, and the center of mass of the curved damper is close to the outer convex surface of the door panel body; The door panel body comprises: A curved shell having a concave side and a convex side, wherein the convex side forms the outer convex surface and the concave side forms a concave cavity; The heat preservation board is embedded in the concave cavity, has a mass density less than that of the curved shell, and its wall surface facing the air flow side of the air duct forms the inner concave surface, and the inner concave surface has a shape adapted to the inner wall surface of the air conditioning air duct where it is set; The main part of the curved shell is an arc-shaped plate, and the weights of the two ends of the main part of the curved shell along the generatrix direction of the arc-shaped plate are different. The end with a larger weight along the generatrix direction is located on one side of the volute, and the other end with a smaller weight along the generatrix direction is located on one side of the volute cover.

2. The curved air door on an air conditioner according to claim 1, characterized in that: The thickness of the arc-shaped plate in the length direction gradually decreases from the middle part to both ends.

3. The curved air door on an air conditioner according to claim 2, characterized in that: The main part of the curved shell is provided with a first side strip and a second side strip extending along the length direction of the curved plate at both ends along the generatrix direction of the curved plate, wherein the first side strip is located on one side of the volute and its weight is greater than that of the second side strip.

4. The curved air door on an air conditioner according to claim 3, characterized in that: First protrusions opposite to the volute are provided at intervals on the side surface of the first side strip.

5. The curved air door on an air conditioner according to claim 4, characterized in that: The side surfaces of the first side strip and the second side strip are both provided with curved air door rotating bosses, the protruding direction of the curved air door rotating boss on the first side strip is the same as the protruding direction of the first protrusion, the protruding direction of the curved air door rotating boss on the second side strip is opposite to the protruding direction of the first protrusion, and the height of the curved air door rotating boss on the first side strip is equal to the height of the first protrusion.

6. The curved air door on an air conditioner according to claim 5, characterized in that: A limiting rib is arranged in the concave cavity, and a limiting groove cooperating with the limiting rib is arranged on the insulation board.

7. A cabinet air conditioner, characterized in that: It is provided with upper and lower air outlets, and a volute and a volute cover are provided on the air duct connecting the upper and lower air outlets, and a curved air door as described in any one of claims 1-6 is provided between the volute and the volute cover.

8. A cabinet air conditioner according to claim 7, characterized in that: The inner concave surface of the curved damper forms an arc surface that matches the inner wall surface of the volute.

9. A cabinet air conditioner according to claim 8, characterized in that: The volute forms a groove, and the curved damper is swingably embedded in the groove, and when it does not swing, the arc surface formed by its inner concave surface and the arc surface formed by the inner wall surface of the volute are on the same arc surface.

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