Air door track structure of cabinet type air conditioner

Abstract

The utility model relates to the field of air conditioners, in particular to an air door track structure of a cabinet air conditioner, which can realize stable opening and closing of an air door panel and comprises the air door panel and a stepping motor, the air door panel is arranged along the vertical direction, and the air door panel is connected with an output shaft of the stepping motor through a connecting shaft and then is driven by the stepping motor; comprising a guide rail, the guide rail extends in the moving direction of an air door panel, a first roller is arranged on the air door panel, the first roller is arranged on the guide rail in a rolling mode, and the position height of the guide rail in the advancing direction of the first roller tends to be gradually increased smoothly and then gradually decreased smoothly. The utility model is especially suitable for cabinet type air conditioners.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning, and in particular to a damper track structure for a cabinet air conditioner. Background Technology

[0002] In cabinet air conditioners, the damper panel is located at the air outlet on the front of the unit frame, serving to open or close the air outlet. Because the damper panel is relatively large, the smoothness of its operation during opening and closing significantly impacts the user experience.

[0003] The existing damper panel opens and closes by a stepper motor transmitting driving force to the damper panel via a connecting shaft, thus moving the damper panel. A first roller is installed on the damper panel, rolling on a guide rail. The guide rail provides support to prevent the vertically oriented damper panel from sagging after long-term use. However, because the stepper motor internally consists of a multi-stage gear mechanism and corresponding fixing structures that transmit torque to the motor's output shaft, there is a significant accumulated clearance within the stepper motor and between the stepper motor and the connecting shaft during initial startup. These clearances cause instability in the torque output of the stepper motor at startup, resulting in unstable driving force on the damper panel at the start of movement. This leads to irregular shaking, jerking, or even jamming of the damper panel during initial movement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cabinet air conditioner damper track structure that enables the smooth opening and closing of the damper panel.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a cabinet air conditioner damper track structure, including a damper panel and a stepper motor. The damper panel is arranged in a vertical direction. The damper panel is connected to the output shaft of the stepper motor through a connecting shaft and is thus driven by the stepper motor. It includes a guide rail, which extends along the movement direction of the damper panel. A first roller is provided on the damper panel. The first roller is rolled on the guide rail. The position height of the guide rail has a trend of first smoothly increasing and then smoothly decreasing in the forward direction of the first roller.

[0006] Furthermore, the guide rail includes sequentially connected uphill, crest, and downhill sections, with smooth transitions between them.

[0007] Furthermore, it includes an initial horizontal segment and an end horizontal segment set along the horizontal direction, with the initial horizontal segment smoothly transitioning to the uphill segment and the end horizontal segment smoothly transitioning to the downhill segment.

[0008] Furthermore, it includes a second roller mounted on the damper panel, which is rotatably mounted on the guide rail; when the first roller is mounted on the initial horizontal section, the second roller is mounted on the final horizontal section.

[0009] Furthermore, it includes a roller bracket mounted on the damper panel, with the first roller and the second roller rotatably mounted on the roller bracket.

[0010] Furthermore, it includes a face frame, which is cylindrical and arranged vertically. A damper panel is located at the air outlet on the front of the face frame and rotates around the axis of the face frame.

[0011] Furthermore, it includes an air inlet, which is located on the back of the faceplate.

[0012] Furthermore, a base is provided at the bottom of the faceplate.

[0013] Furthermore, the connecting shaft includes a crank-rocker structure, with the crank end of the crank-rocker structure connected to the output shaft of the stepper motor, and the rocker end of the crank-connecting rod structure connected to the damper panel.

[0014] Furthermore, the rotation direction of a stepper motor includes both forward and reverse rotation.

[0015] The beneficial effects of this utility model are as follows: 1. At the initial opening of the damper panel, the first roller moves along the smoothly increasing portion of the guide rail, and the height of the first roller also increases accordingly. At this time, the first component of the horizontal supporting force provided by the guide rail to the first roller is opposite in direction to the horizontal driving force that propels the damper panel forward, and the first component is less than the horizontal driving force on the damper panel. That is, during the movement of the first roller along the smoothly increasing portion of the guide rail, the first component always tends to drag the first roller backward. This backward dragging tendency forms a force constraint with the driving force of the stepper motor, thereby effectively suppressing the unstable driving force generated by the stepper motor in the initial stage of startup, reducing the shaking or jerking of the first roller, and making the movement of the first roller and the damper panel along the smoothly increasing portion of the guide rail smooth. 2. When the first roller moves to the smoothly decreasing portion of the guide rail, the stepper motor has completed the replenishment and break-in of the initial startup gap and can achieve a stable output driving force. At this point, the second component of the horizontal supporting force provided by the guide rail to the first roller is in the same direction as the horizontal driving force propelling the damper panel forward, thus jointly driving the first roller to move smoothly along the guide rail's gradually decreasing section. Similarly, when the damper panel needs to close, at the initial closing of the damper panel, the guide rail also first provides a component force in the opposite direction to the driving force of the first roller, ensuring that the unstable driving force generated by the stepper motor at the initial startup is smoothed out. Subsequently, after the stepper motor has completed the initial break-in period, the guide rail provides a component force in the same direction as the driving force of the first roller, ensuring that the first roller moves smoothly along the guide rail's gradually decreasing section. This invention is particularly suitable for cabinet-type air conditioners. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the first and second rollers respectively positioned on both sides of the top section of the guide rail when the damper panel of this utility model is not opened.

[0017] Figure 2 This is a schematic diagram of the roller bracket of this utility model installed on the top of the damper panel.

[0018] Figure 3 This is a bottom schematic diagram of the first and second rollers of this utility model.

[0019] Figure 4 This is a schematic diagram showing the first roller positioned in the initial horizontal section when the damper panel of this utility model is closed.

[0020] Figure 5 This is a schematic diagram of the first component of force when the first roller moves upward along the uphill section during the initial opening of the damper panel of this utility model.

[0021] Figure 6This is a schematic diagram of the second component force when the first roller of this utility model moves downhill along the slope.

[0022] Figure 7 This is a schematic diagram showing the first roller positioned at the end horizontal section after the damper panel of this utility model is fully opened.

[0023] Figure 8 This is a schematic diagram of the front of the face frame of this utility model.

[0024] Figure 9 This is a side view of the face frame of this utility model.

[0025] The diagram is labeled as follows: face frame 1, damper panel 11, air inlet 12, air outlet 13, chassis 14, first roller 31, first component force 311, second component force 312, second roller 32, roller bracket 33, guide rail 4, top slope section 41, uphill section 42, downhill section 43, initial horizontal section 44, and final horizontal section 45. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1 to 9 The diagram shows the damper track structure of a cabinet air conditioner. The front frame 1 is a cylindrical shell with a base 14 at its bottom for stable placement on the ground. An air inlet 12 is located on the back of the front frame 1, and an air outlet 13 is located on the front of the air inlet 12. A damper panel 11 is positioned at the air outlet 13. When the damper panel 11 is open, the air outlet 13 discharges air. When the damper panel 11 is closed, the air outlet 13 is closed. The damper panel 11 is rectangular and vertically oriented. It is a curved surface that rotates around the axis of the front frame 1. A stepper motor is installed inside the front frame 1, and its forward and reverse rotation controls the opening and closing of the damper panel 11. The stepper motor and the damper panel 11 are connected by a crank-rocker structure. The crank end of the crank-rocker structure is connected to the output shaft of the stepper motor, and the rocker end of the crank-connecting rod structure is connected to the damper panel 11, thereby converting the rotation of the stepper motor output shaft into the oscillation of the damper panel 11.

[0028] A pair of roller brackets 33 are provided on the top of the damper panel 11, for mounting the first roller 31 and the second roller 32 respectively. The first roller 31 and the second roller 32 are mounted on a guide rail 4, which is fixedly mounted on the top of the face frame 1. The guide rail 4 is also arc-shaped, allowing it to extend along the direction of movement of the damper panel 11, so that the first roller 31 and the second roller 32 always roll on the guide rail 4.

[0029] Figures 4 to 7This demonstrates the different positions of the first roller 31 from the initial opening of the damper panel 11 to the fully opening of the damper panel 11. Firstly, as... Figure 1 and Figure 4 As shown, when the damper panel 11 is in the closed state, the first roller 31 is positioned at the initial horizontal section 44, the sloping section 41 is positioned between the first roller 31 and the second roller 32, and the second roller 32 is positioned at the final horizontal section 45. Subsequently, driven by the stepper motor, as... Figure 5 As shown, the first roller 31 rolls onto the uphill section 42 and begins to ascend. The supporting force exerted by the uphill section 42 on the first roller 31 can be decomposed into a vertical component and a horizontal component 311. Figure 5 As shown, the first component force 311 moves in the opposite direction to the first roller 31, that is, opposite to the driving force acting on the first roller 31. Since the driving force is greater than the first component force 311, the first roller 31 will continue to move uphill along the uphill section 42. Under the interaction of the first component force 311 and the driving force, even if the driving force output by the stepper motor becomes unstable due to various gaps, the presence of the first component force 311 can effectively absorb and smooth out this impact and instability, allowing the first roller 31 to move uphill along the uphill section 42 at a slower but more stable speed. At this time, the position height of the second roller 32 also increases, making the second roller 32 suspended. However, since the first roller 31 is always mounted on the guide rail 4, the suspension of the second roller 32 will not affect the opening of the damper panel 11.

[0030] Subsequently, after passing the 41st section of the slope, as Figure 6 As shown, the first roller 31 moves to the downhill section 43. At this time, the supporting force exerted by the downhill section 43 on the first roller 31 can be decomposed into a vertical component and a horizontal component 312. The direction of the second component 312 is consistent with the forward direction of the first roller 31. Since the stepper motor has been rotating for a period of time, the various gaps have been filled and broken in, and a smooth output driving force can be achieved. At this time, the second component 312 provided by the downhill section 43 to the first roller 31 is in the same direction as the horizontal driving force that drives the damper panel forward on the first roller 31, thus jointly driving the first roller 31 to move smoothly along the downhill section 43 until it reaches the... Figure 7 The horizontal segment 45 shown at the end point completes the full opening of the damper panel 11.

[0031] When the damper panel 11 needs to be closed, the stepper motor is activated, and the first roller 31 first traverses the uphill section and then the downhill section. The uphill section during the closing process of the damper panel 11 proceeds from left to right. Figure 6 The downhill section 43 shown; the downhill section during the process of closing the damper panel 11 is a passage from left to right. Figure 5 The uphill section 42 is shown. When going uphill, the component force acting on it is opposite to the forward direction of the first roller 31, thus absorbing and smoothing the impact and instability of the stepper motor at startup. When going downhill, the stepper motor has already rotated for a period of time, and the various gaps have been filled and broken in. The stepper motor can now output a stable driving force, allowing the first roller 31 to smoothly descend the slope and finally return to its starting position. Figure 4 The initial state shown implements an opening and closing loop.

Claims

1. A damper track structure of a cabinet air conditioner, comprising a damper panel (11) and a stepping motor, the damper panel (11) is arranged in a vertical direction, the damper panel (11) is connected with an output shaft of the stepping motor through a connecting shaft and is driven by the stepping motor; a guide rail (4) is arranged along the movement direction of the damper panel (11), the damper panel (11) is provided with a first roller (31), the first roller (31) is arranged on the guide rail (4) in a rolling manner, characterized in that: the position height of the guide rail (4) presents a trend of first increasing and then decreasing in a forward direction of the first roller (31). The guide rail (4) comprises a ramp-up section (42), a ramp-top section (41) and a ramp-down section (43) connected in sequence, and the ramp-up section (42), the ramp-top section (41) and the ramp-down section (43) are connected in a smooth transition manner.

2. The damper track structure of the cabinet-type air conditioner according to claim 1, wherein: An initial horizontal section (44) and a terminal horizontal section (45) are arranged in a horizontal direction, the initial horizontal section (44) is connected with the ramp-up section (42) in a smooth transition manner, and the terminal horizontal section (45) is connected with the ramp-down section (43) in a smooth transition manner.

3. The damper track structure of the cabinet-type air conditioner according to claim 2, wherein: A second roller (32) is arranged on the damper panel (11) and arranged on the guide rail (4) in a rolling manner; when the first roller (31) is arranged on the initial horizontal section (44), the second roller (32) is arranged on the terminal horizontal section (45).

4. The damper track structure of the cabinet-type air conditioner according to claim 3, wherein: A roller support (33) is arranged on the damper panel (11), and the first roller (31) and the second roller (32) are rotatably arranged on the roller support (33).

5. The damper track structure of the cabinet-type air conditioner according to claim 4, wherein: A face frame (1) is arranged in a vertical direction, the damper panel (11) is arranged at an air outlet (13) on the front face of the face frame (1), and the damper panel (11) rotates around the axis of the face frame (1).

6. The damper rail structure of the cabinet-type air conditioner according to any one of claims 1 to 5, wherein: An air inlet (12) is arranged on the back face of the face frame (1).

7. The damper track structure of the cabinet-type air conditioner according to claim 6, wherein: A bottom plate (14) is arranged at the bottom of the face frame (1).

8. The damper track structure of the cabinet-type air conditioner according to claim 6, wherein: The connecting shaft comprises a crank rocker structure, a crank end of the crank rocker structure is connected with the output shaft of the stepping motor, and a rocker end of the crank rocker structure is connected with the damper panel (11).

9. The damper rail structure of the cabinet-type air conditioner according to any one of claims 1 to 5, wherein: The rotation direction of the stepping motor comprises forward rotation and reverse rotation.

10. The damper track structure of the cabinet-type air conditioner according to any one of claims 1 to 5, wherein: ​

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