Framework for indoor unit of air conditioner

By introducing support and locking components into the indoor unit of the air conditioner, the panel is opened using a pneumatic rod, and the panel is stably closed through the cooperation of inserts, protrusions, slots, and locking holes. This solves the problem of the loose connection between the outer casing and the panel, and improves the operational stability and user experience of the indoor unit of the air conditioner.

CN224261929UActive Publication Date: 2026-05-19WUXI INSTITUTE OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI INSTITUTE OF TECHNOLOGY
Filing Date
2025-06-23
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The air conditioner indoor unit's outer casing is not securely connected to the bottom of the front panel, causing shaking and abnormal noises, which affects the user experience.

Method used

The design incorporates a support component and a locking component. The support component allows the panel to open via a pneumatic rod, while the locking component uses inserts, protrusions, slots, and locking holes to ensure stable panel closure, preventing shaking and abnormal noise.

Benefits of technology

This design achieves a secure connection between the outer casing and the panel, preventing shaking and abnormal noises, and improving the operational stability and user experience of the indoor air conditioning unit.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air conditioners, and discloses a framework for an air conditioner indoor unit, a panel is hinged to the side face of a shell, an air outlet plate is hinged to the bottom of the shell, a supporting assembly is arranged between the shell and the upper portion of the inner wall of the panel, and a locking assembly is arranged between the shell and the lower portion of the inner wall of the panel. The supporting assembly comprises a pneumatic rod, fixing rings are fixedly installed at the two ends of the pneumatic rod, shaft rods are rotatably installed in the fixing rings, and the shaft rods are fixedly installed on the inner wall of the shell or the inner wall of the panel. When the panel is rotated to be opened, the pneumatic rod is also unfolded, the panel is supported by the pneumatic rod, and it is guaranteed that the panel cannot fall off; on the contrary, when the panel rotates to be closed, the pneumatic rod can contract, the inserting plates on the two sides of the panel are inserted into the inserting grooves of the shell, the torsional springs control the protruding blocks to be inserted into the clamping holes, then the shell and the bottom of the panel are locked mutually, and it is guaranteed that the panel does not shake or generate abnormal sound when the indoor unit operates.
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Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a frame for an indoor unit of an air conditioner. Background Technology

[0002] The air conditioner indoor unit's casing houses various components such as a cross-flow fan, evaporator, air guide assembly, filter, and drain pipe. The casing and front panel are hinged together, facilitating the subsequent rotation and opening of the front panel to disassemble the filter or repair other parts. However, when the casing retracts and closes towards the front panel, the connection between the bottom of the casing and the front panel is not secure enough, causing the bottom of the casing and the front panel to wobble. This results in abnormal noises during indoor unit operation, affecting the user experience. Utility Model Content

[0003] Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a frame for an indoor air conditioning unit, which has the advantages of being securely locked and preventing shaking and abnormal noise, thus solving the aforementioned problems.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned goal of secure locking without shaking or abnormal noise, this utility model provides the following technical solution: a frame for an indoor unit of an air conditioner, comprising a shell, a grid mesh embedded in the top of the shell, a panel hinged to the side of the shell, an air outlet plate hinged to the bottom of the shell, a support assembly disposed between the upper part of the inner wall of the shell and the panel, and a locking assembly disposed between the lower part of the shell and the inner wall of the panel. The support assembly includes a pneumatic rod, with fixing rings fixedly installed at both ends of the pneumatic rod, and a shaft rotatably installed inside the fixing rings. The shaft is fixedly installed to the inner wall of the shell or the panel, respectively.

[0007] Preferably, the locking assembly includes a insert plate, which is fixedly installed on the side of the panel. A protrusion is fixedly installed on one end of the insert plate, and a rotating ring is fixedly installed on the other end of the insert plate. A rotating shaft is inserted inside the rotating ring, and both ends of the rotating shaft are movably installed inside the movable seat. A torsion spring is movably fitted on the outer side of the rotating shaft.

[0008] Preferably, the side wall of the panel is provided with a shaft groove corresponding to the rotating shaft, the movable seat is fixedly installed on the inner bottom wall and inner top wall of the shaft groove, and a limit frame is fixedly installed at the opening position of the shaft groove.

[0009] Preferably, the inner wall of the outer shell has a slot corresponding to the insert plate, and the surface of the outer shell has a locking hole corresponding to the protrusion, and the locking hole and the slot are interconnected.

[0010] Preferably, one leg of the torsion spring presses against the insert plate, and the other leg of the torsion spring presses against the inner wall of the shaft groove.

[0011] Preferably, the panel is snapped into the outer casing via inserts, protrusions, slots, and snap holes.

[0012] Preferably, one side of the limiting frame abuts against the insert plate.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a frame for an indoor unit of an air conditioner, which has the following advantages:

[0015] The frame used for the indoor unit of the air conditioner extends the pneumatic rod when the panel is rotated open, supporting the panel and preventing it from falling. Conversely, when the panel is rotated closed, the pneumatic rod retracts, with the insert plates on both sides of the panel inserting into the slots in the outer casing. The torsion spring controls the protrusions to insert into the locking holes, thus locking the bottom of the outer casing and the panel together to ensure that the panel does not shake or make abnormal noises when the indoor unit is running. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional side view of the present invention;

[0018] Figure 3 This is a cross-sectional structural diagram of the locking component of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the support component of this utility model;

[0020] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point A in the middle;

[0021] Figure 6 This is a schematic diagram of the locking component of this utility model;

[0022] Figure 7 This is an exploded structural diagram of the locking component of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Grid mesh; 3. Panel; 4. Air outlet plate; 5. Support assembly; 6. Locking assembly; 51. Pneumatic rod; 52. Fixing ring; 53. Shaft; 61. Insert plate; 62. Protrusion; 63. Rotating ring; 64. Rotating shaft; 65. Movable seat; 66. Torsion spring; 67. Shaft groove; 68. Limiting frame; 69. Slot; 610. Locking hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3 A frame for an indoor unit of an air conditioner includes a housing 1, a grid 2 embedded in the top of the housing 1, a panel 3 hinged to the side of the housing 1, an air outlet plate 4 hinged to the bottom of the housing 1, a support component 5 provided between the housing 1 and the upper inner wall of the panel 3 for supporting the panel 3 when it is opened, and a locking component 6 provided between the housing 1 and the lower inner wall of the panel 3 for locking the panel 3 when it is closed to prevent the panel 3 from shaking.

[0026] Please see Figure 2-4 The support assembly 5 includes a pneumatic rod 51, with fixing rings 52 fixedly installed at both ends of the pneumatic rod 51. A shaft 53 is rotatably installed inside the fixing rings 52, and the shaft 53 is fixedly installed to the inner wall of the outer shell 1 or the panel 3. When the panel 3 is opened, it rotates and opens by the hinge at its top, during which the pneumatic rod 51 is also pulled out to support the panel 3; conversely, when the panel 3 is closed, the pneumatic rod 51 retracts, and the panel 3 closes with the outer shell 1.

[0027] Please see Figure 5-7 The locking assembly 6 includes a plug plate 61, which is fixedly installed on the side of the panel 3. A protrusion 62 is fixedly installed on one end of the plug plate 61. The cross-section of the protrusion 62 is trapezoidal. A rotating ring 63 is fixedly installed on the other end of the plug plate 61. A rotating shaft 64 is inserted inside the rotating ring 63. Both ends of the rotating shaft 64 are movably installed inside the movable seat 65. A torsion spring 66 is movably fitted on the outside of the rotating shaft 64. One leg of the torsion spring 66 presses against the plug plate 61, and the other leg of the torsion spring 66 presses against the inner wall of the shaft groove 67. The torque of the torsion spring 66 controls the plug plate 61 to always be in contact with the outside.

[0028] Please see Figure 5-7 The side wall of panel 3 is provided with a shaft groove 67 corresponding to the rotating shaft 64. The movable seat 65 is fixedly installed on the inner bottom wall and inner top wall of the shaft groove 67. A limit frame 68 is fixedly installed at the opening of the shaft groove 67. One side of the limit frame 68 is wider and the other side is narrower. The wider side of the limit frame 68 abuts against the insert plate 61 to ensure that the insert plate 61 does not rotate excessively. The narrower side of the limit frame 68 will not affect the reverse rotation of the insert plate 61.

[0029] Please see Figure 5-7 The inner wall of the outer shell 1 is provided with a slot 69 corresponding to the insert plate 61, and the surface of the outer shell 1 is provided with a locking hole 610 corresponding to the protrusion 62. The locking hole 610 and the slot 69 are interconnected. The protrusion 62 is inserted into the locking hole 610 under the control of the torsion spring 66, so as to ensure the locking of the outer shell 1 and the panel 3. The panel 3 is connected to the outer shell 1 through the insert plate 61, the protrusion 62, the slot 69 and the locking hole 610.

[0030] Working principle: When the panel 3 is rotated and closed during use, the pneumatic rod 51 will also retract. The insert plates 61 on both sides of the panel 3 are inserted into the slots 69 of the outer casing 1, and the torsion spring 66 controls the protrusion 62 to be inserted into the locking hole 610. Then the outer casing 1 and the bottom of the panel 3 are locked together to ensure that the panel 3 will not shake or make abnormal noise when the indoor unit is running.

[0031] When panel 3 is rotated open, a finger is inserted into the inside of the locking hole 610 and presses against the protrusion 62. Then the insert plate 61 rotates in the opposite direction, and the protrusion 62 also leaves the inside of the locking hole 610. After that, panel 3 is rotated open, and pneumatic rod 51 will also unfold. Pneumatic rod 51 is used to support panel 3 to ensure that panel 3 does not fall.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A frame for an indoor unit of an air conditioner, comprising a housing (1), a grid mesh (2) embedded in the top of the housing (1), a panel (3) hinged to the side of the housing (1), an air outlet plate (4) hinged to the bottom of the housing (1), a support assembly (5) disposed between the upper part of the inner wall of the housing (1) and the panel (3), and a locking assembly (6) disposed between the lower part of the inner wall of the housing (1) and the panel (3), characterized in that: The support assembly (5) includes a pneumatic rod (51), and fixed rings (52) are fixedly installed at both ends of the pneumatic rod (51). A shaft (53) is rotatably installed inside the fixed ring (52), and the shaft (53) is fixedly installed to the inner wall of the outer shell (1) or the panel (3).

2. The frame for an air conditioner indoor unit according to claim 1, characterized in that: The locking assembly (6) includes a insert plate (61), which is fixedly installed on the side of the panel (3). A protrusion (62) is fixedly installed on one end of the insert plate (61), and a rotating ring (63) is fixedly installed on the other end of the insert plate (61). A rotating shaft (64) is inserted inside the rotating ring (63). Both ends of the rotating shaft (64) are movably installed inside the movable seat (65), and a torsion spring (66) is movably fitted on the outer side of the rotating shaft (64).

3. The frame for an air conditioner indoor unit according to claim 2, characterized in that: The side wall of the panel (3) is provided with a shaft groove (67) opposite to the rotating shaft (64). The movable seat (65) is fixedly installed on the inner bottom wall and inner top wall of the shaft groove (67). A limit frame (68) is fixedly installed at the opening position of the shaft groove (67).

4. The frame for an air conditioner indoor unit according to claim 3, characterized in that: The inner wall of the outer shell (1) is provided with a slot (69) corresponding to the insert plate (61), and the surface of the outer shell (1) is provided with a card hole (610) corresponding to the protrusion (62). The card hole (610) and the slot (69) are interconnected.

5. A frame for an indoor unit of an air conditioner according to claim 2, characterized in that: One leg of the torsion spring (66) presses against the insert plate (61), and the other leg of the torsion spring (66) presses against the inner wall of the shaft groove (67).

6. The frame for an air conditioner indoor unit according to claim 4, characterized in that: The panel (3) is engaged with the outer shell (1) via insert plate (61), protrusion (62), slot (69) and card hole (610).

7. A frame for an indoor unit of an air conditioner according to claim 4, characterized in that: One side of the limiting frame (68) abuts against the insert plate (61).