Air door track structure of cabinet type air conditioner

Abstract

The invention relates to the field of air conditioners, in particular to a cabinet type air conditioner air door track structure capable of achieving stable opening and closing of an air door panel, the cabinet type air conditioner air door track structure comprises the air door panel and a stepping motor, the air door panel is arranged in the vertical direction, and the air door panel is connected with an output shaft of the stepping motor through a connecting shaft and then 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 invention is especially suitable for cabinet type air conditioners.

Description

Technical Field

[0001] The present invention relates to the field of air conditioners, and particularly to an air door track structure of a floor-standing air conditioner. Background Art

[0002] In floor-standing air conditioner products, an air door panel is arranged at the air outlet in front of the air conditioner front frame, and functions to open or close the air outlet. Since the area of the air door panel is large, during the opening and closing process of the air door panel, the smoothness of the operation of the air door panel will significantly affect the use experience of the air conditioner.

[0003] For the opening and closing of the existing air door panel, a stepping motor transmits the driving force to the air door panel through a connecting shaft, and then the air door panel is moved to achieve it. Among them, a first roller is arranged on the air door panel, and the first roller is rotatably arranged on the guide rail. The supporting force provided by the guide rail can prevent the air door panel arranged in the vertical direction from sagging after long-term use. However, inside the stepping motor, it is composed of a multi-stage gear mechanism and corresponding fixed structures combined, and then the rotational torque is transmitted to the output shaft of the motor. Therefore, at the initial stage of starting the stepping motor, due to the large accumulated fitting clearances inside the stepping motor and the fitting clearance between the stepping motor and the connecting shaft, these clearances will cause the torque output by the stepping motor to be unstable when starting, resulting in the driving force received by the air door panel being unstable when starting to move, and further causing problems such as irregular shaking, crosstalk, and even jamming of the air door panel when starting to move. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an air door track structure of a floor-standing air conditioner that can achieve smooth opening and closing of the air door panel.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an air door track structure of a floor-standing air conditioner, including an air door panel and a stepping motor. The air door panel is arranged in the vertical direction, and the air door panel is connected to the output shaft of the stepping motor through a connecting shaft and is thus driven by the stepping motor; it includes a guide rail, the guide rail extends along the movement direction of the air door panel, a first roller is arranged on the air door panel, and the first roller is rotatably arranged on the guide rail. The position height of the guide rail shows a trend of first smoothly increasing and then smoothly decreasing in the forward direction of the first roller.

[0006] Further, the guide rail includes an uphill section, a slope top section, and a downhill section connected in sequence, and the uphill section, the slope top section, and the downhill section are smoothly transitionally connected.

[0007] Further, it includes an initial horizontal section and a terminal horizontal section arranged in the horizontal direction. The initial horizontal section is smoothly transitionally connected to the uphill section, and the terminal horizontal section is smoothly transitionally connected to the downhill section.

[0008] Further, it includes a second roller disposed on the damper panel, and the second roller is rotatably disposed on the guide rail; when the first roller is disposed on the initial horizontal section, the second roller is disposed on the end horizontal section.

[0009] Further, it includes a roller bracket disposed on the damper panel, and the first roller and the second roller are rotatably disposed on the roller bracket.

[0010] Further, it includes a face frame, the face frame is cylindrical, the face frame is disposed along the vertical direction, the damper panel is disposed at the air outlet on the front of the face frame, and the damper panel rotates around the axis of the face frame.

[0011] Further, it includes an air inlet, and the air inlet is disposed on the back of the face frame.

[0012] Further, a chassis is disposed at the bottom of the face frame.

[0013] Further, the connecting shaft includes a crank-rocker structure, the crank end of the crank-rocker structure is connected to the output shaft of the stepping motor, and the rocker end of the crank-rocker structure is connected to the damper panel.

[0014] Further, the rotation direction of the stepping motor includes forward rotation and reverse rotation.

[0015] The beneficial effects of the present invention are as follows: First, at the beginning when the air damper panel is opened, the first roller moves along the smoothly increasing part of the guide rail, and the position height of the first roller also increases accordingly. At this time, the first component force of the supporting force provided by the guide rail to the first roller in the horizontal direction is opposite to the driving force in the horizontal direction that drives the air damper panel forward, and the first component force is less than the driving force of the air damper panel in the horizontal direction. That is, during the process of the first roller moving along the smoothly increasing part of the guide rail, the first component force always has a tendency to drag the first roller backward. This backward dragging tendency forms a force restriction with the driving force of the stepping motor, thereby effectively suppressing the unstable driving force generated by the stepping motor at the initial start-up stage, reducing the shaking or crosstalk of the first roller, and making the movement process of the first roller and the air damper panel along the smoothly increasing part of the guide rail stable. Second, when the first roller moves to the smoothly decreasing part of the guide rail, the stepping motor has completed the compensation and running-in of the initial start-up gap and can already output a stable driving force. At this time, the second component force of the supporting force provided by the guide rail to the first roller in the horizontal direction is in the same direction as the driving force in the horizontal direction that drives the air damper panel forward, and thus jointly drives the first roller to move smoothly along the smoothly decreasing part of the guide rail. Third, similarly, when the air damper panel needs to be closed, at the beginning when the air damper panel is closed, the guide rail also first provides a component force opposite to the driving force of the first roller to ensure that the unstable driving force generated by the stepping motor at the initial start-up stage can be suppressed. Subsequently, after the stepping motor has completed the running-in of the initial start-up gap, the guide rail provides a component force in the same direction as the driving force of the first roller to ensure that the first roller moves smoothly along the smoothly decreasing part of the guide rail. The present invention is particularly applicable to cabinet air conditioners. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram showing that when the air damper panel of the present invention is not opened, the first roller and the second roller are respectively arranged on both sides of the top section of the guide rail.

[0017] Figure 2 It is a schematic diagram showing that the roller bracket of the present invention is arranged on the top of the air damper panel.

[0018] Figure 3 It is a schematic diagram of the bottom of the first roller and the second roller of the present invention.

[0019] Figure 4 It is a schematic diagram showing that when the air damper panel of the present invention is closed, the first roller is arranged on the initial horizontal section.

[0020] Figure 5 It is a schematic diagram of the first component force when the first roller of the present invention moves upward along the uphill section at the initial stage of opening the air damper panel.

[0021] Figure 6 It is a schematic diagram of the second component force when the first roller of the present invention moves downward along the downhill section.

[0022] Figure 7 It is a schematic diagram of the first roller being set on the end horizontal section after the damper panel of the present invention is fully opened.

[0023] Figure 8 It is a schematic diagram of the front of the front frame of the present invention.

[0024] Figure 9 It is a schematic diagram of the side of the front frame of the present invention.

[0025] In the figure, the markings are: front 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, end horizontal section 45. Detailed implementation manners

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

[0027] As Figures 1 to 9 shown is the damper track structure of a cabinet air conditioner. Among them, the front frame 1 is a cylindrical housing. A chassis 14 is provided at the bottom of the front frame 1 so as to be stably set on the ground. An air inlet 12 is provided on the back of the front frame 1, and an air outlet 13 is provided on the front of the air inlet 12. A damper panel 11 is provided at the air outlet 13. When the damper panel 11 is opened, the air outlet 13 realizes the air outlet function. When the damper panel 11 is closed, the air outlet 13 is closed. The damper panel 11 is rectangular as a whole, and the damper panel 11 is arranged in the vertical direction. Among them, the damper panel 11 is an arc-shaped curved surface, and the damper panel 11 rotates around the axis of the front frame 1. A stepping motor is provided inside the front frame 1, and the opening and closing of the damper panel 11 are realized by the forward and reverse rotation of the stepping motor. The stepping motor and the damper panel 11 are connected through a crank-rocker structure. Among them, the crank end of the crank-rocker structure is connected to the output shaft of the stepping motor, and the rocker end of the crank-link structure is connected to the damper panel 11, so as to convert the rotation of the output shaft of the stepping motor into the swing of the damper panel 11.

[0028] A pair of roller brackets 33 are provided at the top of the damper panel 11, which are respectively used to set the first roller 31 and the second roller 32. The first roller 31 and the second roller 32 are set on the guide rail 4, and the guide rail 4 is fixedly set on the top of the front frame 1. The guide rail 4 is also arc-shaped, and then the guide rail 4 is arranged along the movement direction 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 7 Shows different position states of the first roller 31 from the initial opening of the damper panel 11 to the full opening of the damper panel 11. First, as Figure 1 andFigure 4 As shown, when the damper panel 11 is in the closed state, the first roller 31 is set on the initial horizontal section 44, the top section 41 is set between the first roller 31 and the second roller 32, and the second roller 32 is set on the end horizontal section 45. Subsequently, driven by the stepping motor, as Figure 5 shown, the first roller 31 rolls onto the uphill section 42 and starts to go uphill. Among them, the supporting force exerted by the uphill section 42 on the first roller 31 can be decomposed into a component force in the vertical direction and a first component force 311 in the horizontal direction. As Figure 5 shown, the first component force 311 is opposite to the advancing direction of the first roller 31, that is, opposite to the driving force received by the first roller 31. Since the driving force is greater than the first component force 311, the first roller 31 will continue to go uphill and move 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 stepping motor is in an unstable state due to various clearances, due to the existence of the first component force 311, this kind of impact and instability can be better absorbed and suppressed, so that the first roller 31 moves uphill along the uphill section 42 at a relatively slow but more stable speed. At this time, the position height of the second roller 32 also increases accordingly, making the second roller 32 in a suspended state. However, since the first roller 31 is always set 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 through the top section 41, as Figure 6 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 component force in the vertical direction and a second component force 312 in the horizontal direction. At this time, the direction of the second component force 312 is the same as the advancing direction of the first roller 31. Since the stepping motor has rotated for a period of time at this time, various clearances before have been supplemented and run-in, and a stable driving force can be output. At this time, the second component force 312 provided by the downhill section 43 to the first roller 31 has the same direction as the driving force in the horizontal direction that drives the damper panel forward received by the first roller 31, and then jointly drives the first roller 31 to move smoothly along the downhill section 43 until it moves to Figure 7 the end horizontal section 45 shown, completing the full opening of the damper panel 11.

[0031] When the damper panel 11 needs to be closed, the stepping motor is started, and the first roller 31 also first goes uphill and then downhill. The uphill during the closing of the damper panel 11 is passed from left to right through Figure 6 the downhill section 43 shown; the downhill during the closing of the damper panel 11 is passed from left to right through Figure 5The uphill section 42 shown. When going uphill, the component force received is also opposite to the advancing direction of the first roller 31, achieving the absorption and suppression of the impact and instability of the stepper motor at the beginning of startup. When going downhill, the stepper motor has rotated for a period of time, and various previous clearances have been completed for replenishment and running-in. The stepper motor can already achieve a stable output of driving force, enabling the first roller 31 to smoothly go downhill and finally return to Figure 4 the initial state shown, realizing the cycle of opening and closing.

Claims

1. A damper track structure for a cabinet air conditioner, comprising a damper panel (11) and a stepper motor, wherein the damper panel (11) is arranged in a vertical direction, and the damper panel (11) is connected to an output shaft of the stepper motor via a connecting shaft and is driven by the stepper motor; comprising a guide rail (4), the guide rail (4) extending along a movement direction of the damper panel (11), a first roller (31) being arranged on the damper panel (11), and the first roller (31) being rollingly arranged on the guide rail (4), characterized in that: The height of the guide rail (4) in the advancing direction of the first roller (31) shows a trend of first smoothly increasing and then smoothly decreasing.

2. The cabinet air conditioner damper track structure according to claim 1, characterized in that: The guide rail (4) comprises an upslope section (42), a slope top section (41) and a downslope section (43) which are connected in sequence, and the upslope section (42), the slope top section (41) and the downslope section (43) are connected with each other in a smooth transition.

3. The damper track structure of a cabinet air conditioner according to claim 2, characterized in that: It comprises an initial horizontal section (44) and a terminal horizontal section (45) arranged in a horizontal direction, wherein the initial horizontal section (44) is smoothly transitionally connected to the uphill section (42), and the terminal horizontal section (45) is smoothly transitionally connected to the downhill section (43).

4. The damper track structure of a cabinet air conditioner according to claim 3, characterized in that: The invention comprises a second roller (32) arranged on the damper panel (11), wherein the second roller (32) is rollingly arranged on the guide rail (4); 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).

5. The cabinet air conditioner damper track structure according to claim 4, characterized in that: It comprises a roller bracket (33) arranged on the damper panel (11); a first roller (31) and a second roller (32) are rotatably arranged on the roller bracket (33).

6. The damper track structure of a cabinet air conditioner according to any one of claims 1 to 5, characterized in that: The invention comprises a face frame (1), wherein the face frame (1) is cylindrical and arranged in a vertical direction; a damper panel (11) is arranged at an air outlet (13) on the front side of the face frame (1); and the damper panel (11) rotates around the axis of the face frame (1).

7. The cabinet air conditioner damper track structure according to claim 6, characterized in that: It comprises an air inlet (12), wherein the air inlet (12) is arranged on the back side of the face frame (1).

8. The damper track structure of a cabinet air conditioner according to claim 6, characterized in that: A bottom plate (14) is arranged at the bottom of the face frame (1).

9. The damper track structure of a cabinet air conditioner according to any one of claims 1 to 5, characterized in that: The connecting shaft comprises a crank rocker structure, the crank end of the crank rocker structure is connected to the output shaft of the stepping motor, and the rocker end of the crank connecting rod structure is connected to the damper panel (11).

10. The damper track structure of a cabinet air conditioner according to any one of claims 1 to 5, characterized in that: The rotation direction of the stepper motor includes forward and reverse.

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