Air guide door assembly and air conditioner

Abstract

The present invention provides an air guide door assembly and an air conditioner. The air guide door assembly includes an air guide door arranged at an air outlet of a housing and a motor driving the air guide door to move. The air guide door assembly also includes a crank connecting rod assembly and a second connecting rod. The crank connecting rod assembly connects the motor and the air guide door. One end of the second connecting rod is rotatably connected to point C on the upper edge of the air outlet, and the other end is fixedly connected to the air guide door. The motor drives the crank connecting rod assembly to rotate, which can drive the air guide door to rotate around point C. The present invention moves the rotation center of the air guide door to the upper edge of the air outlet by arranging the crank connecting rod assembly and the second connecting rod, thereby expanding the movement range of the air guide door. Furthermore, when the air guide door rotates, the effective air outlet area can be continuously changed, so that different air outlet modes during cooling and heating can be controlled, thereby improving comfort and experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air guide door assembly and an air conditioner. Background Art

[0002] The air outlet of the air conditioner is provided with an air guide door to adjust the air outlet direction. In the prior art wall-mounted air conditioner, a short shaft is provided at one end of the air guide door in the length direction, and the short shaft is inserted into the motor shaft installed on the side wall of the air outlet, and the motor is used to directly drive the air guide door to operate.

[0003] Since the motor and the air guide door are coaxial and operate synchronously, the rotation center of the air guide door is in the middle of the air guide door when it is in operation, so the movement range of the air guide door is limited to a cylinder with the width of the air outlet as the diameter and the same length as the air outlet. In addition, when the air guide door is in operation, all the air volume will be divided into two parts, the upper part of the air will be blown out along the direction of the air guide door, and the lower part of the air will not be restricted by the air guide door and will be blown out directly along the air outlet obliquely downward. Therefore, the air guide door only guides the air blown out from the upper part and can only control the direction of part of the air volume. Summary of the invention

[0004] The problem solved by the present invention is that the air guide door in the prior art has a small movement range and little air volume control.

[0005] To solve the above problems, the first aspect of the present invention provides an air guide door assembly, including an air guide door arranged at the air outlet of a shell and a motor driving the air guide door to move, and also including a crank-connecting rod assembly and a second connecting rod. The crank-connecting rod assembly connects the motor and the air guide door, one end of the second connecting rod is rotatably connected to point C on the upper edge of the air outlet, and the other end is fixedly connected to the air guide door. The motor drives the crank-connecting rod assembly to rotate, thereby driving the air guide door to rotate around point C as the center.

[0006] After adopting the above structure, the present invention has the following advantages compared with the prior art: the present invention arranges a crank-connecting rod assembly and a second connecting rod so that the rotation center of the air guide door is moved to the upper edge of the air outlet, thereby expanding the movement range of the air guide door; and then when the air guide door rotates, the effective air outlet area can be continuously changed, thereby controlling different air outlet modes during cooling and heating, thereby improving comfort and experience.

[0007] Furthermore, the crank-connecting rod assembly includes a crank and a first connecting rod, the first end of the crank is connected to the motor, the second end is rotatably connected to the first connecting rod at point A, one end of the first connecting rod is rotatably connected to point A, and the other end is rotatably connected to the air guide door at point B.

[0008] According to the technical solution of this embodiment, the crank and the first connecting rod are rotatably connected, and the first connecting rod is rotatably connected to the air guide door, so that the rotation of the crank drives the rotation of the first connecting rod, and the rotation of the first connecting rod drives the rotation of point B.

[0009] Furthermore, the crank includes a vertical rod and two cross rods extending from both ends of the vertical rod to both sides of the vertical rod, wherein the first cross rod has a first end, the second cross rod has a second end, and the second end rotates in a circle with the first end as the center.

[0010] According to the technical solution of this embodiment, a vertical rod is provided on the crank, so that the axial rotation of the motor is converted into the axial rotation of the first connecting rod, thereby driving the rotation of the second connecting rod.

[0011] Furthermore, the point B is located on the end surface of the air guide door close to the lower edge of the air outlet, and the connecting end of the second connecting rod and the air guide door is located on the inner side surface of the air guide door close to the upper edge of the air outlet.

[0012] According to the technical solution of this embodiment, under the condition that the length of the connecting rod and the driving force are constant, the movement range of the air guide door is larger and the movement is more reliable.

[0013] Furthermore, the profile of the lower edge of the air outlet is designed according to the movement trajectory of the point B, and the distance between the point B and the lower edge of the air outlet is always N during the rotation of the air guide door.

[0014] According to the technical solution of this embodiment, most of the air volume is blown out from above the air guide door, thereby improving the working efficiency of the air guide door.

[0015] Furthermore, the value range of N is 4-6 mm.

[0016] According to the technical solution of this embodiment, it is avoided that the air volume is blown out from under the air guide door due to excessive distance, and it is avoided that the air guide door is interfered with the lower edge of the air outlet due to excessive distance, thereby affecting the movement of the air guide door.

[0017] Furthermore, the ratio of the length of the vertical rod, the length of the first connecting rod, and the projection distance of the BC point on the rotation plane of the first connecting rod is 1:3:6.

[0018] According to the technical solution of this embodiment, the size of the opening and closing angle of the air guide door can be set by setting the length of the vertical section, the length of the first connecting rod and the distance between the BC points.

[0019] Furthermore, the first connecting rod is a straight rod, and the second connecting rod is a bent rod.

[0020] According to the technical solution of this embodiment, the length of the second connecting rod is increased, so that the loss of the second connecting rod when it is subjected to force and rotates is reduced, and the stability is improved.

[0021] Furthermore, the second connecting rod is integrally formed with the air guide door.

[0022] According to the technical solution of this embodiment, the air guide door can be easily processed with high processing efficiency.

[0023] A second aspect of the present invention provides an air conditioner, comprising the above-mentioned air guide door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of the air guide door rotating to the lower edge of the air outlet in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 The enlarged schematic diagram of point 1 in the middle;

[0026] Figure 3 This is a structural schematic diagram of the air guide door rotating to the upper edge of the air outlet in an embodiment of the present invention;

[0027] Figure 4 is a cross-sectional view of an air guide door assembly according to an embodiment of the present invention;

[0028] 10-air outlet; 11-upper edge of air outlet; 12-lower edge of air outlet; 100-air guide door; 110-inner side of connecting plate; 210-first connecting rod; 220-second connecting rod; 230-crank; 231-first cross bar; 231-vertical rod; 233-second cross bar. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] like Figure 1 As shown, it is a structural schematic diagram of the air guide door rotating to the lower edge of the air outlet in an embodiment of the present invention. The embodiment of the present invention discloses an air guide door assembly, and the air guide door assembly is arranged at the air outlet 10 of the electrical appliance housing. In this embodiment, it is arranged at the air outlet 10 of the wall-mounted indoor unit housing of the air conditioner.

[0031] Specifically, the air guide door assembly includes an air guide door 100 and a motor that drives the air guide door 100 to move, and also includes a crank-connecting rod assembly and a second connecting rod 220. The crank-connecting rod assembly is arranged at one end of the air guide door 100 in the length direction (the left end in the present embodiment), and the second connecting rod 220 is arranged at the other end of the air guide door 100 in the length direction (the right end in the present embodiment), and the crank-connecting rod assembly connects the motor and the air guide door 100, and one end of the second connecting rod 220 is rotatably connected to the point C of the upper edge 11 of the air outlet, and the other end is fixedly connected to the air guide door 100. The motor drives the crank-connecting rod assembly to rotate, so as to drive the air guide door 100 to rotate around point C as the center.

[0032] As mentioned above, the present invention moves the rotation center of the air guide door to the upper edge of the air outlet by setting a crank-connecting rod assembly and a second connecting rod, thereby expanding the movement range of the air guide door; and then when the air guide door rotates, the effective air outlet area can be continuously changed, thereby controlling different air outlet modes during cooling and heating, thereby improving comfort and experience.

[0033] like Figure 2-4 As shown, the crank-connecting rod assembly includes a crank 230 and a first connecting rod 210, wherein the first end of the crank 230 is connected to the motor, and the second end is rotatably connected to the first connecting rod 210 at point A, and one end of the first connecting rod 210 is rotatably connected to point A, and the other end is rotatably connected to the air guide door 100 at point B. By setting the crank 230 and the first connecting rod 210 to be rotatably connected, the first connecting rod 210 to be rotatably connected to the air guide door 100, and the second connecting rod 220 to be fixedly connected to the air guide door, the rotation of the crank 230 drives the first connecting rod 210 to rotate, and the rotation of the first connecting rod 210 drives the air guide door at point B to rotate.

[0034] Specifically, the crank 230 includes a vertical rod 233 and a first crossbar 231 and a second crossbar 232 extending from both ends of the vertical rod 233 to both sides of the vertical rod, wherein the first crossbar 231 and the second crossbar 232 are both perpendicular to the vertical rod 233, wherein the first crossbar 231 has a first end for connecting with the motor shaft, and the second crossbar 232 has a second end for connecting with the first connecting rod 210, so that the motor drives the first crossbar 231 of the crank 230 to rotate, thereby realizing the second end of the second crossbar to rotate in a circle with the first end as the center. In addition, the first connecting rod 210 is parallel to the vertical rod 233, and then the crank 230 drives the first connecting rod 210 to rotate, which can realize the conversion of the axial rotation of the motor into the axial rotation of the first connecting rod.

[0035] Preferably, the point B is located on the end surface of the air guide door 100 close to the lower edge 12 of the air outlet, that is, the point B is located at the bottom end of the air guide door, and the connecting end of the second connecting rod 220 and the air guide door 100 is located on the inner side surface 110 of the air guide door 100 close to the upper edge 11 of the air outlet, that is, the connecting end of the second connecting rod 220 and the air guide door 100 is located on the inner side surface 110 near the top of the air guide door 100. The above arrangement is adopted to achieve a larger movement range and more reliable movement of the air guide door under the condition of certain connecting rod length and driving force. In addition, setting it on the inner side surface can also improve the reliability of the connection between the second connecting rod and the air guide door.

[0036] See also Figure 4 The first connecting rod 210 is a straight rod, and the second connecting rod 220 is a bent rod. This is because when point B and point C are determined, the second connecting rod 220 is set to a bent rod, which increases the length of the second connecting rod, reduces the force and loss when the second connecting rod rotates, and improves stability.

[0037] Preferably, the second connecting rod 220 is integrally formed with the air guide door 100. Such a configuration can facilitate the processing of the air guide door and improve the processing efficiency.

[0038] In addition, the profile of the lower edge 12 of the air outlet is designed according to the movement trajectory of the point B, so that the distance between the point B and the lower edge 12 of the air outlet is always N during the rotation of the air guide door 100. With the above setting, most of the air can be blown out from above the air guide door 100, and very little is blown out from the gap between the air guide door 100 and the lower edge 12 of the air outlet. Therefore, the working efficiency of the air guide door in guiding the blowing is improved.

[0039] Preferably, the value range of N is 4-6mm. The above setting can avoid the distance between point B and the lower edge 12 of the air outlet being too large, causing a lot of air to be blown out from under the air guide door, and can also avoid the distance being too small, causing interference between the air guide door 100 and the lower edge 12 of the air outlet and affecting the movement of the air guide door 100.

[0040] Since the distance between the top of the air guide door 100 and the upper edge 11 of the air outlet is constantly changing when the air guide door rotates, the effective air outlet area will continue to change. Therefore, when cooling and the air volume remains unchanged, the air guide door 100 is rotated toward the upper edge 11 of the air outlet, the air outlet direction moves up, the effective air outlet area becomes smaller, the wind speed increases, and the air supply distance is longer, so that the cold air can be blown from the top to a farther distance, thereby improving comfort.

[0041] See again Figure 4, the rotation plane of the first connecting rod 210 is parallel to the rotation plane of the second connecting rod 220, so the crank 230 can finally drive the first connecting rod 210 to rotate. When point A rotates around the motor as the center of the circle, since the distance between point B and point C on the air guide door is fixed, the rotation of point A drives point B to rotate, and finally the air guide door rotates around point C. In addition, the rotation radius of the air guide door 100 around point C is the projection distance of point BC on the rotation plane of the first connecting rod, that is, Figure 4 The length of the line connecting points BC.

[0042] Preferably, the ratio of the length of the vertical rod 233, the length of the first connecting rod 210, and the projection distance of the BC point on the rotation plane of the first connecting rod is 1:3:6. Specifically, the length of the vertical rod 233 is 14-16 mm, the length of the first connecting rod 210 is 42-48 mm, and the projection distance of the BC point on the rotation plane of the first connecting rod is 84-96 mm. By adjusting the length of the vertical rod, the length of the first connecting rod, and the distance from the BC point, the rotation radius of the air guide door around the C point can be adjusted, thereby adjusting the size of the opening and closing angle of the air guide door.

[0043] An embodiment of the present invention also discloses an air conditioner, which includes a wall-mounted indoor unit, and the wall-mounted indoor unit includes an air outlet 10 and an air guide door assembly arranged at the air outlet 10. The air guide door assembly realizes the rotation of the air guide door around the upper edge of the air outlet through a crank-connecting rod assembly and a second connecting rod, so that the movement range of the air guide door is expanded, and the air guide angle requirements for cooling or heating are met through a simple and reliable movement process. The air guide door has a simple structure, few parts, and high comfort.

[0044] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An air guide door assembly, comprising an air guide door (100) arranged at an air outlet (10) of a housing and a motor for driving the air guide door (100) to move, characterized in that: It also comprises a crank-connecting rod assembly and a second connecting rod (220), wherein the crank-connecting rod assembly is connected to the motor and the air guide door (100), one end of the second connecting rod (220) is rotatably connected to point C on the upper edge (11) of the air outlet, and the other end is fixedly connected to the air guide door (100), and the motor drives the crank-connecting rod assembly to rotate, thereby driving the air guide door (100) to rotate around point C; The crank-connecting rod assembly comprises a crank (230) and a first connecting rod (210); a first end of the crank (230) is connected to the motor, and a second end is rotatably connected to the first connecting rod (210) at point A; one end of the first connecting rod (210) is rotatably connected to point A, and the other end is rotatably connected to the air guide door (100) at point B; The rotation plane of the first connecting rod (210) and the rotation plane of the second connecting rod (220) are parallel.

2. The air guide door assembly according to claim 1, characterized in that: The crank (230) comprises a vertical rod (233) and two cross rods extending from two ends of the vertical rod (233) to two sides of the vertical rod, wherein the first cross rod (231) has a first end, and the second cross rod (232) has a second end, and the second end rotates in a circle with the first end as the center.

3. The air guide door assembly according to claim 1, characterized in that: The point B is located on the end surface of the air guide door (100) close to the lower edge (12) of the air outlet, and the connection end between the second connecting rod (220) and the air guide door (100) is located on the inner side surface (110) of the air guide door (100) close to the upper edge (11) of the air outlet.

4. The air guide door assembly according to claim 3, characterized in that: The profile of the lower edge (12) of the air outlet is designed according to the movement trajectory of the point B, and the distance between the point B and the lower edge (12) of the air outlet is always N during the rotation of the air guide door (100).

5. The air guide door assembly according to claim 4, characterized in that: The value range of N is 4-6mm.

6. The air guide door assembly according to claim 2, characterized in that: The ratio of the length of the vertical rod (233), the length of the first connecting rod (210), and the projection distance of the BC point on the rotation plane of the first connecting rod is 1:3:

6.

7. The air guide door assembly according to claim 1, characterized in that: The first connecting rod (210) is a straight rod, and the second connecting rod (220) is a bent rod.

8. The air guide door assembly according to claim 7, characterized in that: The second connecting rod (220) is integrally formed with the air guide door (100).

9. An air conditioner, characterized in that: It comprises the air guide door assembly described in any one of claims 1-8.

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