Air guide driving mechanism and air conditioner

Abstract

The utility model provides an air guide driving mechanism and an air conditioner, and relates to the technical field of air conditioners, the air guide driving mechanism comprises a mounting frame, an air guide door, a driving piece, a crank connecting rod assembly and an elastic pre-tightening piece, the crank connecting rod assembly comprises a driving crank, a transmission connecting rod and a transmission crank which are connected in sequence, and the transmission crank is in transmission connection with the air guide door; the driving part is mounted on the mounting frame and is in transmission connection with the driving crank, the driving crank is used for rotating clockwise or anticlockwise under the driving of the driving part, and the elastic pre-tightening part is arranged between the driving crank and the mounting frame in a pre-tightening manner and is used for providing pre-tightening force opposite to the direction of opening the air guide door for the driving crank. Compared with the prior art, the air guide driving mechanism provided by the embodiment of the utility model has the advantages that the conditions of blockage and jumping of the air guide door caused by vacancy can be avoided, and the air supply effect and the customer experience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an air guide driving mechanism and an air conditioner. Background Art

[0002] Current air conditioners usually have an air outlet, and an air guide door needs to be set at the air outlet to realize rotating air guide. However, during the rotation of the air guide door, the force position of the air flow will change, which will cause the force situation to change, and the assembly gap between the various assembly parts of the rotating drive mechanism will jump from one side of the rotation axis to the other side, causing the crank motion state to change, so a certain virtual position will be generated, and the virtual position reversal will cause jamming and jumping after being magnified by the air guide door, affecting the air supply effect and customer experience. Utility Model Content

[0003] The problem solved by the utility model is how to avoid the stuck and jumping of the air guide door caused by the vacant position, so as to improve the air supply effect and customer experience.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions.

[0005] On the one hand, the utility model provides an air guide drive mechanism, including a mounting frame, an air guide door, a driving member, a crank-connecting rod assembly and an elastic preload member. The air guide door is rotatably arranged at the air outlet of the mounting frame. The crank-connecting rod assembly includes a driving crank, a transmission connecting rod and a transmission crank connected in sequence. The transmission crank is transmission-connected to the air guide door. The driving member is mounted on the mounting frame and transmission-connected to the driving crank. The driving crank is used to rotate clockwise or counterclockwise under the drive of the driving member to open or close the air guide door. The elastic preload member is preloaded between the driving crank and the mounting frame to provide a preload force to the driving crank in the opposite direction of opening the air guide door.

[0006] The air guide driving mechanism provided by the embodiment of the utility model has the air guide door rotatably arranged at the air outlet of the mounting frame, the transmission crank is rotatably arranged on the mounting frame and is transmission connected to the air guide door, the driving member is installed on the mounting frame and is transmission connected to the driving crank, the driving crank can rotate clockwise or counterclockwise under the drive of the driving member, and drive the air guide door to open or close the air outlet, and the elastic preload member is preloaded between the driving crank and the mounting frame, so as to provide the driving crank with a preload force in the opposite direction of opening the air guide door. In actual operation, the elastic preload member always applies a preload torque in the opposite direction to the opening of the air guide door. When the air guide door is opened, the driving member drives the driving crank to rotate clockwise. The torque applied by the driving member on the driving crank is greater than the preload torque, and the two are in opposite directions, so that the gap assembled on the entire transmission mechanism is aggregated to one side of the driving crank, that is, the entire transmission system is always maintained in a transmission holding state. When the air guide door rotates to the side opposite to the force of the wind, the transmission holding state remains unchanged. Since there is no virtual position, the air guide door will not be stuck or jump due to the virtual position reversal. When the air guide door is closed, the preload torque is consistent with the torque applied by the driving member, and the virtual position is always on one side of the driving crank, and there will be no problems of jamming or jumping caused by reversing. Compared with the prior art, the air guide drive mechanism provided by the embodiment of the utility model can avoid the jamming and jumping of the air guide door caused by the virtual position, thereby improving the air supply effect and customer experience.

[0007] Furthermore, the mounting frame includes an air outlet frame base and a drive seat, the air outlet is arranged on the air outlet frame base, the drive seat is arranged on the air outlet frame base, the drive crank is rotatably assembled in the drive seat, and the drive member is installed on the drive seat.

[0008] Furthermore, the mounting frame comprises an air outlet frame base, the air outlet is opened on the air outlet frame base, the driving crank is rotatably mounted on the air outlet frame base, and the driving member is mounted on the air outlet frame base.

[0009] Furthermore, a first hook column is provided on the driving crank, a second hook column is provided on the driving seat or the air outlet frame base, and the elastic preload includes an elastic torsion spring, one end of the elastic torsion spring is connected to the first hook column, and the other end is connected to the second hook column. The air guide drive assembly provided by the embodiment of the utility model can connect the two ends of the preload to the first hook column and the second hook column respectively through the first hook column and the second hook column, so as to better carry the connection elastic preload, ensure that the elastic preload always applies a preload force to the driving crank, so that the air guide door always has a counterclockwise assist, and further avoids the occurrence of a virtual position during its rotation. And the use of an elastic torsion spring can make the preload force change linearly with the change of the rotation angle of the driving crank.

[0010] Furthermore, the driving crank includes an integrally arranged crank portion and a driving column, the driving column is arranged at one end of the crank portion, and the other end of the crank portion is transmission-connected to the crank-connecting rod assembly, one end of the driving column is rotatably connected to the driving seat, and the other end of the driving column is provided with a transmission assembly hole, and the output shaft of the driving member is assembled in the transmission assembly hole, the first hook column is arranged on the crank portion, and the elastic preload member is sleeved on the driving column.

[0011] The wind guide drive assembly provided by the embodiment of the utility model can achieve a stable transmission connection between the driving member and the driving crank by setting a driving column and opening a transmission assembly hole on the driving column. At the same time, the elastic preload member is sleeved on the driving column, and the driving column can be used to position and install the elastic preload member, thereby ensuring the fixing effect of the elastic preload member.

[0012] Furthermore, a first hook and a second hook are respectively provided at both ends of the elastic preload member, the first hook is buckled on the first hook column, and the second hook is buckled on the second hook column.

[0013] The wind guide drive assembly provided in the embodiment of the utility model can realize a detachable buckle setting by setting a first hook and a second hook, which is convenient for removing or installing the elastic pre-tightening member and can ensure the pre-tightening buckle effect.

[0014] Furthermore, an anti-dropping bending cap is provided at the top end of the first hook column and / or the second hook column.

[0015] The wind guide drive assembly provided in the embodiment of the utility model can prevent the first hook from falling off from the first hook column or the second hook from falling off from the second hook column by providing an anti-dropping bending cap, thereby ensuring the installation stability of the elastic preload component during rotation.

[0016] Furthermore, there are multiple transmission cranks, one end of each transmission crank is rotatably disposed on the air outlet frame base and connected to the air guide door, and the other end is hinged to the transmission connecting rod, and the transmission connecting rod is hinged to the driving crank.

[0017] The air guide drive assembly provided by the embodiment of the utility model can realize the linkage of multiple transmission cranks at the same time by adopting a transmission connecting rod, thereby realizing the linkage of multiple air guide doors. The driving crank, the transmission connecting rod and at least one transmission crank constitute a crank-connecting rod structure, which can realize force transmission more stably and ensure the stable opening and closing of the air guide door.

[0018] Furthermore, a transmission connecting column is provided at the end of the air guide door, and a transmission through hole is opened on the base of the air outlet frame. The transmission connecting column can be rotatably assembled in the transmission through hole and fixedly penetrated through the transmission crank. A limiting cylinder is provided on the mounting frame, and the end of the transmission connecting column away from the air guide door can be rotatably assembled in the limiting cylinder.

[0019] The air guide drive assembly provided in the embodiment of the utility model can better achieve connection with the air guide door by setting a transmission connecting column, and at the same time, by setting a limiting cylinder, it can limit the transmission crank to avoid the transmission crank from tilting during rotation.

[0020] On the other hand, an embodiment of the present invention provides an air conditioner, comprising the wind guide drive mechanism as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the assembly structure of the wind guide drive mechanism provided by the first embodiment of the utility model at a first viewing angle;

[0022] Figure 2 A schematic diagram of the exploded structure of the air guide drive mechanism provided in the first embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the assembly structure of the wind guide drive mechanism provided by the first embodiment of the utility model at a second viewing angle;

[0024] Figure 4 for Figure 2 Schematic diagram of the assembly structure of the center air outlet frame base;

[0025] Figure 5 for Figure 2 Schematic diagram of the assembly structure of the middle drive seat;

[0026] Figure 6 for Figure 5 A partial enlarged schematic diagram of middle VI;

[0027] Figure 7 It is a schematic diagram of the partial structure of the air guide drive mechanism when the air guide door is in a closed state;

[0028] Figure 8 It is a schematic diagram of the partial structure of the air guide drive mechanism when the air guide door is partially opened;

[0029] Fig. 9 It is a schematic diagram of the partial structure of the air guide drive mechanism when the air guide door is fully opened;

[0030] Fig.10 This is a structural schematic diagram of an air conditioner provided in the second embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 100-air guide drive mechanism; 110-mounting frame; 111-air outlet; 113-air outlet frame base; 115-driving seat; 117-second hook column; 119-limiting cylinder; 120-air guide door; 130-driving member; 140-driving crank; 141-first hook column; 143-crank part; 145-driving column; 147-transmission assembly hole; 150-crank-connecting rod assembly; 151-transmission connecting rod; 153-transmission crank; 157-transmission connecting column; 160-elastic preload; 161-first hook; 163-second hook; 165-anti-drop bending cap; 200-air conditioner; 210-air conditioner body. DETAILED DESCRIPTION

[0033] As disclosed in the background technology, the prior art generally sets a rotary drive mechanism inside the air conditioner to open and close the air guide door 120, and drives the air guide door 120 to rotate through the rotary drive mechanism. However, the conventional rotary drive mechanism is usually formed by a plurality of cranks and connecting rods, and the assembly between each crank or connecting rod usually has a certain assembly gap. During the opening or closing process, each crank or connecting rod is pressed against one side and leaves a gap on the other side. During the rotation of the air guide door 120, the position blown by the wind will change, resulting in a change in the force situation. The assembly gap between each assembly of the rotary drive mechanism jumps from one side of the rotation axis to the other side, and a virtual position will be generated at this time. The motion state of the crank changes, and after being magnified by the air guide door 120, jamming and jumping phenomena will occur, affecting the air supply effect and customer experience.

[0034] In order to solve the above problems, the present invention provides a new wind guide drive mechanism 100 and an air conditioner 200. In order to make the above purposes, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] First embodiment

[0036] See also Figure 1 and Figure 2 The present embodiment provides an air guide drive mechanism 100, which can avoid the air guide door 120 from getting stuck or jumping due to the virtual position by applying a pre-tightening force, thereby improving the air supply effect and customer experience.

[0037] The air guide drive mechanism 100 provided in this embodiment includes a mounting frame 110, an air guide door 120, a driving member 130, a crank-connecting rod assembly 150 and an elastic preload member 160. The air guide door 120 is rotatably arranged at the air outlet 111 of the mounting frame 110. The crank-connecting rod assembly 150 includes a driving crank 140, a transmission connecting rod 151 and a transmission crank 153 connected in sequence. The transmission crank 153 is movably arranged on the mounting frame 110 and is transmission-connected to the air guide door 120. The driving member 130 is mounted on the mounting frame 110 and is transmission-connected to the driving crank 140. The driving crank 140 is used to rotate clockwise or counterclockwise under the drive of the driving member 130 to open or close the air outlet 111 by driving the air guide door 120. The elastic preload member 160 is preloaded between the driving crank 140 and the mounting frame 110 to provide a preload force to the driving crank 140 in the opposite direction to opening the air guide door 120.

[0038] In this embodiment, the air guide door 120 is rotatably set at the air outlet 111 of the mounting frame 110, the transmission crank 153 is rotatably set on the mounting frame 110 and is transmission-connected to the air guide door 120, the driving member 130 is installed on the mounting frame 110 and is transmission-connected to the driving crank 140, the driving crank 140 can rotate clockwise or counterclockwise under the drive of the driving member 130, and drive the air guide door 120 to open or close the air outlet 111, and the elastic preload member 160 is preloaded between the driving crank 140 and the mounting frame 110, so as to provide the driving crank 140 with a preload force in the opposite direction of opening the air guide door 120. During actual operation, the elastic preload member 160 always applies a preload torque in the counterclockwise direction to the driving crank 140. When the air guide door 120 is opened, the driving member 130 drives the driving crank 140 to rotate clockwise. The torque applied by the driving member 130 on the driving crank 140 is greater than the preload torque, and the two are in opposite directions, so that the gap assembled on the entire transmission mechanism is aggregated to one side of the driving crank 140, that is, the entire transmission system always maintains a transmission support state. When the air guide door 120 rotates to the side opposite to the force of the wind, the transmission support state remains unchanged. Since there is no virtual position, the air guide door 120 will not get stuck or jump due to the virtual position reversal. When the air guide door 120 is closed, the preload torque is consistent with the direction of the torque applied by the driving member 130, and the virtual position is always on one side of the driving crank 140, and there will be no problems of jamming or jumping caused by reversing.

[0039] It should be noted that the air guide drive mechanism 100 mentioned in this embodiment is suitable for the indoor unit of an air conditioner, specifically an air conditioner cabinet. The air outlet 111 of the mounting frame 110 is arranged forward, and the air guide door 120 is rotatably arranged on the front side of the mounting frame 110. The driving member 130, the driving crank 140 and the crank connecting rod assembly 150 are all arranged at the top of the mounting frame 110.

[0040] It is worth noting that in this embodiment, the elastic preload member 160 is preloaded between the driving crank 140 and the mounting frame 110, which means that the elastic preload member 160 is preloaded clockwise before installation. In this case, it can be ensured that the elastic preload member 160 can provide a certain preload force and always provide the driving crank 140 with an elastic force in the opposite direction to the opening of the air guide door 120, thereby avoiding the situation of turning to a virtual position.

[0041] The mounting frame 110 includes an air outlet frame base 113 and a driving seat 115, the air outlet 111 is arranged on the air outlet frame base 113, the air guide door 120 is rotatably connected to the air outlet frame base 113, the crank connecting rod assembly 150 is movably arranged on the air outlet frame base 113, the driving seat 115 is arranged on the air outlet frame base 113, the driving crank 140 is rotatably assembled in the driving seat 115, the driving member 130 is installed on the driving seat 115, and the elastic preload member 160 is preloaded between the driving crank 140 and the driving seat 115. Specifically, the driving member 130 can be a motor, the driving seat 115 can be a motor seat, and the motor seat can be detachably buckled on the end of the air outlet frame base 113, wherein the air outlet frame base 113 is provided with an air outlet 111, and the air guide door 120 can be rotatably arranged at the air outlet 111, and driven by the crank connecting rod assembly 150 to realize rotation, wherein the action and principle of the air guide door 120 opening and closing the air outlet 111 can refer to the existing air guide structure. In this embodiment, the driving crank 140 is assembled in the driving seat 115, and the elastic preload member 160 is preloaded between the driving crank 140 and the driving seat 115, so that the driving crank 140 and the elastic preload member 160 are both supported by the driving seat 115, avoiding the situation where the preload force of the elastic preload member 160 is insufficient due to the installation error between the driving seat 115 and the air outlet frame base 113, and ensuring the compression effect of the elastic preload member 160.

[0042] In other preferred embodiments of the present invention, the mounting frame 110 may only include an air outlet frame base 113, the air outlet 111 is provided on the air outlet frame base 113, the driving crank 140 is rotatably mounted on the air outlet frame base 113, and the driving member 130 is mounted on the air outlet frame base 113. The driving member 130 and the driving crank 140 may be directly mounted on the air outlet frame base 113, thereby eliminating the need for the driving seat 115.

[0043] See also Figures 3 to 6In this embodiment, a first hook column 141 is provided on the driving crank 140, a second hook column 117 is provided on the driving seat 115, and the elastic preload 160 includes an elastic torsion spring, one end of the elastic torsion spring is connected to the first hook column 141, and the other end is connected to the second hook column 117, and the elastic preload 160 is used to provide a torsional elastic force in the counterclockwise direction to the first hook column 141. Specifically, the elastic preload 160 can be an elastic torsion spring, which can be tightened or loosened, and the torsional elastic force output by the elastic torsion spring and the rotation angle are in a linear relationship. Furthermore, through the first hook column 141 and the second hook column 117, the two ends of the preload member can be connected to the first hook column 141 and the second hook column 117 respectively, so as to better support the connection elastic preload member 160, ensure that the elastic preload member 160 always applies a preload force to the driving crank 140, so that the air guide door 120 always has an assist force in the counterclockwise direction, and further avoid the occurrence of a void during its rotation.

[0044] It should be noted that, in other preferred embodiments of the present invention, the second hook column 117 may also be disposed on the air outlet frame base 113 , and the force is borne by the air outlet frame base 113 .

[0045] The driving crank 140 includes an integrally arranged crank portion 143 and a driving column 145, wherein the driving column 145 is arranged at one end of the crank portion 143, and the other end of the crank portion 143 is transmission-connected to the crank connecting rod assembly 150, and one end of the driving column 145 is rotatably connected to the driving seat 115, and the other end of the driving column 145 is provided with a transmission assembly hole 147, in which the output shaft of the driving member 130 is assembled, the first hook column 141 is arranged on the crank portion 143, and the elastic preload member 160 is sleeved on the driving column 145. Specifically, the elastic torsion spring is a hollow structure, and is sleeved on the driving column 145. A transmission assembly hole 147 is provided at the top of the driving column 145. The transmission assembly hole 147 is a waist-shaped hole that can be adapted to the output shaft of the motor. The output shaft of the motor can directly drive the driving column 145 to rotate, thereby driving the integrated crank portion 143 to rotate, thereby realizing a stable transmission connection between the driving member 130 and the driving crank 140. At the same time, the elastic preload member 160 is sleeved on the driving column 145, and the driving column 145 can be used to realize the positioning and installation of the elastic preload member 160, thereby ensuring the fixing effect of the elastic preload member 160.

[0046] Furthermore, the first hook 161 and the second hook 163 are respectively provided at both ends of the elastic preload member 160, the first hook 161 is buckled on the first hook column 141, and the second hook 163 is buckled on the second hook column 117. Specifically, the first hook 161 and the second hook 163 are respectively provided at both ends of the elastic torsion spring, and the opening directions of the first hook 161 and the second hook 163 are opposite to the compression direction of the elastic torsion spring, and the elastic torsion spring preload setting can ensure that the first hook 161 and the second hook 163 are respectively firmly buckled on the first hook column 141 and the second hook column 117. In addition, by providing the first hook 161 and the second hook 163, a detachable buckling setting can be achieved, which is convenient for removing or installing the elastic preload member 160, and can ensure the preload buckling effect.

[0047] It should be noted that when the first hook 161 and the second hook 163 at both ends of the elastic torsion spring hook the first hook column 141 and the second hook column 117 respectively, the torsion spring can be tightened or relaxed, and at this time, the two ends of the elastic torsion spring are supported by the driving crank 140 and the driving seat 115 respectively. When the air guide door 120 is opened, the driving crank 140 rotates clockwise, and the elastic torsion spring will be continuously compressed, thereby giving the air guide door 120 a torque in the closing direction, that is, always providing a certain torsional elastic force, and when the air guide door 120 is opened to the maximum, the driving crank 140 rotates clockwise to the extreme position, and the torsional elastic force is the largest at this time. When the air guide door 120 is closed, the driving crank 140 rotates counterclockwise, and the elastic torsion spring is in a way that the torque direction provided by the torsional elastic force remains unchanged and gradually decreases, and the torque reaches the minimum after the air guide door 120 is completely closed. Since the elastic torsion spring has a certain pre-tightening angle when installed on the crank, the elastic torsion spring will always output a pre-tightening torque.

[0048] In this embodiment, the top of the first hook column 141 and / or the second hook column 117 is provided with an anti-dropping bending cap 165. Specifically, in this embodiment, the first hook 161 is farther from the crank portion 143 than the second hook 163, that is, the first hook 161 is close to the top of the first hook column 141, and the second hook 163 is close to the bottom of the second hook column 117. Therefore, it is preferred that the top of the first hook column 141 is provided with an anti-dropping bending cap 165. Of course, in other preferred embodiments of the utility model, the anti-dropping bending cap 165 can also be provided at the top of the first hook column 141 and the second hook column 117 at the same time, or the anti-dropping bending cap 165 can also be provided only at the top of the second hook column 117, which can be determined specifically according to the installation method of the elastic torsion spring. The anti-dropping bending cap 165 can prevent the first hook 161 from falling off from the first hook column 141 or the second hook 163 from falling off from the second hook column 117, thereby ensuring the installation stability of the elastic preload member 160 during the rotation process.

[0049] See also Figures 7 to 9In actual operation, when the air guide door 120 is opened, the driving crank 140 rotates clockwise, the elastic torsion spring is continuously compressed, and the torque transmitted by the driving crank 140 to the crank connecting rod assembly 150 is greater than the torque of the elastic torsion spring, and the direction is opposite. Therefore, the assembly clearances on the crank transmission connecting rod 151, the driving crank 140 and the air guide door 120 are aggregated to one side of the driving crank 140. When the air guide door 120 rotates to the side opposite to the force of the wind, since the transmission system always maintains a tight holding state, there is no virtual position, and the air guide door 120 will not be stuck or jump due to the virtual position reversal. When the air guide door 120 is closed, since the torque directions of the elastic torsion spring and the driving member 130 are consistent, and the virtual position is always on one side of the output shaft of the driving member 130, there will be no reversing virtual position, so the air guide door 120 will not be stuck or jump.

[0050] It should be noted that the elastic torque provided by the elastic torsion spring in this embodiment will not automatically close the air guide door 120. Specifically, the opening and closing of the air guide door 120 is only determined by the output shaft of the drive member 130, i.e., the motor. The elastic torsion spring will only provide a certain preload force during the opening or closing of the air guide door 120, but will not determine whether the air guide door 120 is opened or closed. When the air guide door 120 is opened, even if the elastic torsion spring provides an elastic preload force in the opposite direction of the opening, however, the air guide door 120 and the motor are not decoupled at this time, and the torque provided by the motor is much greater than the elastic torque of the elastic torsion spring. Therefore, the air guide door 120 will not move under the drive of the elastic torsion spring, and therefore the elastic torsion spring will not achieve the automatic closing of the air guide door 120.

[0051] Please continue to see Figures 3 to 6 There are multiple transmission cranks 153, one end of each transmission crank 153 is rotatably disposed on the air outlet frame base 113 and connected to the air guide door 120, and the other end is hinged to the transmission connecting rod 151, and the transmission connecting rod 151 is hinged to the driving crank 140, so that the driving crank 140, the transmission connecting rod 151 and at least one transmission crank 153 form a crank-connecting rod structure. Specifically, there can be two transmission cranks 153, so that two air guide doors 120 can be connected to achieve synchronous movement of the two air guide doors 120. Of course, the transmission cranks 153 and the air guide doors 120 here can also be 3 or 4, etc., which are not specifically limited here. By adopting the transmission connecting rod 151, the linkage of multiple transmission cranks 153 can be achieved at the same time, thereby achieving the linkage of multiple air guide doors 120. The driving crank 140, the transmission connecting rod 151 and at least one transmission crank 153 constitute a crank-connecting rod structure, which can achieve more stable force transmission and ensure the stable opening and closing of the air guide door 120.

[0052] It should be noted that, in this embodiment, the articulation between the transmission crank 153 and the transmission connecting rod 151 and the articulation between the driving crank 140 and the transmission connecting rod 151 can be achieved through the cooperation of the rotating shaft and the rotating hole. For details, reference can be made to the connecting rod articulation structure in the prior art.

[0053] In this embodiment, a transmission connection column 157 is provided at the end of the air guide door 120, and a transmission through hole is provided on the air outlet frame base 113. The transmission connection column 157 is rotatably assembled in the transmission through hole and fixedly penetrated through the transmission crank 153, so that the air guide door 120 can be driven to rotate by the transmission crank 153. A limiting cylinder 119 is provided on the driving seat 115, and one end of the transmission connection column 157 away from the air guide door 120 is rotatably assembled in the limiting cylinder 119. By providing the transmission connection column 157 and providing the limiting cylinder 119 on the driving seat 115, the transmission crank 153 and the air guide door 120 can be limited, so as to prevent the transmission crank 153 from being skewed during the rotation process.

[0054] To summarize, the air guide driving mechanism 100 provided in the present embodiment rotatably sets the air guide door 120 at the air outlet 111 of the mounting frame 110, the crank-connecting rod assembly 150 is movably set on the mounting frame 110 and is transmission-connected to the air guide door 120, one end of the driving crank 140 is rotatably set on the mounting frame 110, and the other end is transmission-connected to the driving connecting rod assembly, the driving member 130 is mounted on the mounting frame 110 and is transmission-connected to the driving crank 140, the driving crank 140 can rotate clockwise or counterclockwise under the drive of the driving member 130, and drive the air guide door 120 to open or close the air outlet 111 through the crank-connecting rod assembly 150, and the elastic preload member 160 is preloaded between the driving crank 140 and the mounting frame 110, so as to provide the driving crank 140 with a preload force in the opposite direction of opening the air guide door 120. During actual operation, the elastic preload member 160 always applies a preload torque in the counterclockwise direction to the driving crank 140. When the air guide door 120 is opened, the driving member 130 drives the driving crank 140 to rotate clockwise. The torque applied by the driving member 130 on the driving crank 140 is greater than the preload torque, and the two are in opposite directions, so that the gap assembled on the entire transmission mechanism is aggregated to one side of the driving crank 140, that is, the entire transmission system always maintains a transmission support state. When the air guide door 120 rotates to the side opposite to the force of the wind, the transmission support state remains unchanged. Since there is no virtual position, the air guide door 120 will not get stuck or jump due to the virtual position reversal. When the air guide door 120 is closed, the preload torque is consistent with the direction of the torque applied by the driving member 130, and the virtual position is always on one side of the driving crank 140, and there will be no problems of jamming or jumping caused by reversing. Compared with the prior art, the air guide drive mechanism 100 provided in this embodiment can avoid the air guide door 120 from getting stuck or jumping due to a vacant position, thereby improving the air supply effect and customer experience.

[0055] Second embodiment

[0056] See also Fig.10 This embodiment provides an air conditioner 200, including an air guide drive mechanism 100, wherein the basic structure and principle of the air guide drive mechanism 100 and the technical effects produced are the same as those of the first embodiment. For the sake of brief description, for parts not mentioned in this embodiment, reference may be made to the corresponding contents in the first embodiment.

[0057] In this embodiment, the air conditioner 200 includes an air conditioner body 210 and an air guide drive mechanism 100, wherein the air conditioner body 210 is provided with components such as a fan and a heat exchanger, and the air guide drive mechanism 100 is provided on the air conditioner body 210, and the air guide drive mechanism 100 includes a mounting frame 110, an air guide door 120, a driving member 130, a crank connecting rod assembly 150 and an elastic preload member 160, the air guide door 120 is rotatably provided at the air outlet 111 of the mounting frame 110, and the crank connecting rod assembly 150 includes a driving crank 140 and a transmission connecting rod 151 connected in sequence. And a transmission crank 153, the transmission crank 153 is movably arranged on the mounting frame 110 and is transmission-connected to the air guide door 120, the driving member 130 is mounted on the mounting frame 110 and is transmission-connected to the driving crank 140, the driving crank 140 is used to rotate clockwise or counterclockwise under the drive of the driving member 130, so as to open or close the air outlet 111 by driving the air guide door 120, and the elastic preload member 160 is preloaded between the driving crank 140 and the mounting frame 110, and is used to provide a preload force to the driving crank 140 in the opposite direction of opening the air guide door 120.

[0058] Although the utility model is disclosed as above, the utility model 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 utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A wind guide drive mechanism, characterized in that: The invention comprises a mounting frame (110), an air guide door (120), a driving member (130), a crank-connecting rod assembly (150) and an elastic preload member (160); the air guide door (120) is rotatably arranged at an air outlet (111) of the mounting frame (110); the crank-connecting rod assembly (150) comprises a driving crank (140), a transmission connecting rod (151) and a transmission crank (153) which are connected in sequence; the transmission crank (153) is transmission-connected to the air guide door (120); the driving member (130) is transmission-connected to the air guide door (120); (130) is installed on the mounting frame (110) and is connected to the driving crank (140) in a transmission manner. The driving crank (140) is used to rotate clockwise or counterclockwise under the drive of the driving member (130) to open or close the air guide door (120). The elastic preload member (160) is preloaded between the driving crank (140) and the mounting frame (110) and is used to provide the driving crank (140) with a preload force in the opposite direction to opening the air guide door (120).

2. The air guide drive mechanism according to claim 1, characterized in that: The mounting frame (110) comprises an air outlet frame base (113) and a drive seat (115); the air outlet is arranged on the air outlet frame base (113); the drive seat (115) is arranged on the air outlet frame base (113); the drive crank (140) is rotatably mounted in the drive seat (115); and the drive member (130) is mounted on the drive seat (115).

3. The wind guide drive mechanism according to claim 1, characterized in that: The mounting frame (110) comprises an air outlet frame base (113), the air outlet (111) is opened on the air outlet frame base (113), the driving crank (140) is rotatably mounted on the air outlet frame base (113), and the driving member (130) is mounted on the air outlet frame base (113).

4. The wind guide drive mechanism according to claim 2 or 3, characterized in that: The driving crank (140) is provided with a first hook column (141), the mounting frame (110) is provided with a second hook column (117), and the elastic preload member (160) comprises an elastic torsion spring, one end of the elastic torsion spring is connected to the first hook column (141), and the other end is connected to the second hook column (117).

5. The wind guide drive mechanism according to claim 4, characterized in that: The driving crank (140) comprises an integrally arranged crank portion (143) and a driving column (145); the driving column (145) is arranged at one end of the crank portion (143); the other end of the crank portion (143) is transmission-connected to the crank-connecting rod assembly (150); one end of the driving column (145) is rotatably connected to the mounting frame (110); the other end of the driving column (145) is provided with a transmission assembly hole (147); the output shaft of the driving member (130) is assembled in the transmission assembly hole (147); the first hook column (141) is arranged on the crank portion (143); and the elastic torsion spring is sleeved on the driving column (145).

6. The wind guide drive mechanism according to claim 4, characterized in that: A first hook (161) and a second hook (163) are respectively provided at both ends of the elastic torsion spring; the first hook (161) is buckled on the first hook column (141), and the second hook (163) is buckled on the second hook column (117).

7. The wind guide drive mechanism according to claim 6, characterized in that: An anti-dropping bending cap (165) is provided at the top end of the first hook column (141) and / or the second hook column (117).

8. The wind guide drive mechanism according to claim 2 or 3, characterized in that: There are a plurality of transmission cranks (153), one end of each transmission crank (153) is rotatably disposed on the air outlet frame base (113) and connected to the air guide door (120), and the other end is hinged to the transmission connecting rod (151), and the transmission connecting rod (151) is hinged to the driving crank (140).

9. The wind guide drive mechanism according to claim 8, characterized in that: A transmission connection column (157) is provided at the end of the air guide door (120); a transmission through hole is provided on the air outlet frame base (113); the transmission connection column (157) is rotatably mounted in the transmission through hole and is fixedly inserted into the transmission crank (153); a limiting cylinder (119) is provided on the mounting frame (110); an end of the transmission connection column (157) away from the air guide door (120) is rotatably mounted in the limiting cylinder (119).

10. An air conditioner (200), characterized in that: It comprises the wind guide drive mechanism as described in any one of claims 1 to 9.

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