A moving mechanism, a sliding door, an indoor cabinet machine and an air conditioner
The motion mechanism with all-gear transmission solves the problems of vibration and wear on the door panel of the floor-standing cabinet, achieving stability and zero-gap closure, reducing costs and improving the versatility of parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2023-09-26
- Publication Date
- 2026-07-21
AI Technical Summary
The existing floor-standing cabinet air conditioner's motion mechanism vibrates when driving the door panel, and the use of rubber bushings causes severe wear.
The motion mechanism, which adopts full gear transmission, includes a motor, a motor drive gear, a transmission rack, and a stabilizing component. Through the cooperation of the limit bracket, driven gear, and auxiliary gear, the transmission rack can be stably operated, the damping can be increased to avoid vibration, and the zero-gap closure of the door panel can be achieved through the variable trajectory section.
It improves the stability and transmission efficiency of the motion mechanism, avoids wear, achieves zero-gap closure of the door panel, reduces costs, and improves the versatility of parts.
Smart Images
Figure CN117328761B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air conditioning technology, and in particular to a moving mechanism, a sliding door, an indoor unit, and an air conditioner. Background Technology
[0002] Existing floor-standing air conditioners often use open air vents, driven by upper and lower motors; such as Figure 1 and Figure 2 The upper moving part 100 and the lower moving part 200 shown drive the door panel 300 to open / close, thereby controlling the air outlet. Taking the LP cabinet air conditioner as an example, the door panel moving part adopts a variable slide rail push-pull transmission mechanism, such as... Figure 2 As shown, the motor drives the gear 700, which in turn drives the flexible rack 600 to move in an arc along the slide groove. The flexible rack 600, in turn, drives the slider 800 (the rack 600 and slider 800 can rotate relative to the push plate 400) to run along the arc trajectory via the push plate 400. The push plate 400 acts as a push and pull mechanism when the slider 800 changes track, facilitating the track-changing motion. The disadvantage of this motion mechanism is its poor stability. Because the slider uses ball bearings, after the door panel 300 is hung on the front side of the slider 800, the slider 800 will tilt back and forth with the ball bearings as the fulcrum. During the movement, the slider is constantly tilted, and the force is concentrated at the contact point between the slider bushing and the slide groove. Uneven force distribution causes the door panel to vibrate significantly during operation.
[0003] To solve the vibration problem of the variable slide rail push-pull transmission mechanism, it was considered to add rubber bushings to both ends of the slider. However, the effect was unstable, and the friction between the rubber bushings and the side of the slide rail during slider operation caused serious wear problems. Summary of the Invention
[0004] The purpose of this invention is to provide a motion mechanism, sliding door, indoor unit and air conditioner, which enhances the stability of the mechanism under the premise of "zero gap" closure of the door panel movement, so as to solve the technical problem of vibration when the motion mechanism drives the door panel to run in the prior art.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] In a first aspect, the present invention provides a motion mechanism disposed on both sides of a component to be pushed, capable of driving the component to be pushed to reciprocate; the motion mechanism includes:
[0007] An electric motor is used to provide driving force;
[0008] A motor-driven gear is connected to the output shaft of the motor and is driven by the motor.
[0009] A transmission rack meshes with the motor drive gear to drive the component to move.
[0010] A stabilizing component is connected to the drive rack to ensure stable operation of the drive rack.
[0011] Furthermore, the stabilizing component includes:
[0012] The limiting bracket is an irregularly convex annular structure to form a variable trajectory section at the convex part; the component to be pushed is installed on the transmission rack at the position corresponding to the variable trajectory section;
[0013] The first slide groove is provided inside the limiting bracket. The transmission rack has a circular structure and is slidably installed in the first slide groove, and has a certain resistance when sliding.
[0014] Furthermore, the limiting bracket is a split structure, including: an upper bracket and a lower bracket spaced apart, and a connector connecting the upper bracket and the lower bracket together, wherein the gap between the upper bracket and the lower bracket forms the first sliding groove in the horizontal direction.
[0015] Furthermore, the connector has a C-shaped structure, with its upper and lower ends respectively secured to the end faces of the upper bracket and the lower bracket.
[0016] Furthermore, the stabilizing component also includes:
[0017] The driven gear is rotatably sleeved on the outside of the limiting bracket and has a certain resistance when rotating;
[0018] An auxiliary gear meshes with the driven gear.
[0019] The helical teeth are arranged around the entire inner ring of the driven gear;
[0020] Several thrust pins are fixedly installed on the entire rotation of the transmission rack and can move together with the transmission rack when it moves.
[0021] The thrust pin engages with the helical teeth, enabling it to drive the driven gear to rotate during movement.
[0022] Furthermore, the number of driven gears is three, which are spaced apart circumferentially along the limiting bracket.
[0023] Furthermore, the transmission rack has a fixing block for assembling with the component to be pushed.
[0024] Furthermore, the length of the fixing block is equal to or close to the width of the component to be pushed.
[0025] The motion mechanism provided by this invention is a mechanism in which all operating links are replaced by gear transmission. It has the characteristics of high transmission efficiency, good reliability (avoiding vibration), can realize "zero gap" closure of door panel movement, and has high parts versatility and simple structure.
[0026] Secondly, the present invention provides a sliding door, comprising a door panel and a motion mechanism installed at the top and bottom of the door panel.
[0027] The sliding door of this invention uses gear transmission to replace all operating links (gear transmission efficiency can reach over 95%), resulting in high transmission efficiency. By adding auxiliary gears and increasing damping, the vibration problem is solved and wear is avoided. By setting a variable trajectory part, the door panel movement achieves "zero gap" closure through variable track movement. The motion mechanism also features a simple structure and high parts versatility. The six driven gears and six auxiliary gears are interchangeable, resulting in low cost and high assembly efficiency.
[0028] Thirdly, the present invention provides an indoor unit including the sliding door.
[0029] The indoor unit provided by this invention uses a highly versatile and low-cost motion mechanism to drive the sliding door, thereby solving the problem of door panel vibration during operation, improving operational stability, and achieving "zero-gap" closure of the door panel.
[0030] Fourthly, the present invention provides an air conditioner including the indoor unit. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the structure of a sliding door and its motion mechanism in the prior art;
[0033] Figure 2 This is a schematic diagram of the motion mechanism in the prior art;
[0034] Figure 3 This is a front view of the indoor unit of the present invention;
[0035] Figure 4 This is a schematic diagram of the motion mechanism and sliding door of the present invention;
[0036] Figure 5 This is a schematic diagram of the motion mechanism of the present invention;
[0037] Figure 6 This is a cross-sectional view of the motion mechanism of the present invention;
[0038] Figure 7 This is a schematic diagram of the limiting bracket in the motion mechanism of the present invention;
[0039] Figure 8 yes Figure 6 Enlarged view of part A in the middle.
[0040] In the diagram: 1. Motor; 2. Motor drive gear; 3. Transmission rack; 4. Limiting bracket; 41. Upper bracket; 42. Lower bracket; 43. Connecting piece; 44. First slide groove; 45. Second slide groove; 5. Driven gear; 6. Auxiliary gear; 7. Helical gear; 8. Thrust pin; 9. Fixing block; 100. Upper moving part; 200. Lower moving part; 300. Door panel; 400. Push plate; 600. Rack; 700. Gear; 800. Slider; 900. Decorative panel. Detailed Implementation
[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0042] To completely solve the problem of door panel vibration during operation and improve operational stability, while still achieving "zero-gap" closure of the door panel, such as... Figures 4-7 As shown, the present invention provides a novel anti-shake door panel motion mechanism, which is set on both sides of the component to be pushed and can drive the component to be pushed to reciprocate. It should be noted that, in this embodiment, the component to be pushed is the door panel 300 in the sliding door; the following description uses the door panel 300 as an example.
[0043] like Figure 4 As shown, in this embodiment, the motion mechanism includes two sets located at the top and bottom of the door panel 300, respectively, to push at both ends of the door panel 300; specifically, as... Figure 5 As shown, each motion mechanism includes:
[0044] Motor 1 is used to provide driving force;
[0045] Motor-driven gear 2 is connected to the output shaft of motor 1 and is driven by motor 1;
[0046] The transmission rack 3 meshes with the motor drive gear 2 to drive the door panel 300 to move. It should be noted that in this embodiment, the transmission rack 3 is a flexible rack. In this embodiment, the motor 1 is vertically arranged, the motor drive gear 2 is located at the top of the motor 1, and the transmission rack 3 is horizontally arranged, which can rotate horizontally under the drive of the motor 1.
[0047] A stabilizing component is connected to the transmission rack 3 to ensure its stable operation. By incorporating the stabilizing component, the transmission rack 3 remains stable during horizontal rotation, reducing vibration.
[0048] Furthermore, in this embodiment, the stabilizing component includes:
[0049] like Figure 7 As shown, the limiting bracket 4 is fixed in position and can be fixed to the panel structure of the indoor unit by welding, bolts, etc. The limiting bracket 4 is an irregularly shaped circular structure with partial outward protrusion, forming a trajectory-changing part at the protrusion. It should be noted that the trajectory-changing part is essentially the same as the trajectory-changing part in the prior art, both of which use the protruding part to form a trajectory-changing action when the door panel 300 moves to this point. Therefore, in this embodiment, the trajectory-changing part will not be described in detail. The door panel 300 is installed on the transmission rack 3 at the position corresponding to the trajectory-changing part. Through this structural setting, the running trajectory of the door panel 300 is limited to the position of the trajectory-changing part. Of course, the limiting of the running trajectory of the door panel 300 can also be achieved by using a servo motor for the motor 1 and then setting the trajectory parameters through a program.
[0050] The first slide groove 44 is located within the limiting bracket 4. The transmission rack 3 has a circular structure and is slidably installed within the first slide groove 44, providing a certain resistance during sliding. Since the transmission rack 3 is a flexible rack, and a trajectory-changing section is provided within the limiting bracket 4, the position of the transmission rack 3 at the trajectory-changing section is also designed to conform to the shape.
[0051] like Figure 6 and Figure 8 As shown, the limiting bracket 4 is a split structure, including: an upper bracket 41 and a lower bracket 42 spaced apart, and a connector 43 connecting the upper bracket 41 and the lower bracket 42 together. The gap between the upper bracket 41 and the lower bracket 42 forms a first horizontal groove 44.
[0052] Furthermore, such as Figure 6 and Figure 8As shown, the lower bracket 42 has an L-shaped cross-section and a wall on its rear side; the upper bracket 41 has a rectangular cross-section, and the width of the upper bracket 41 is smaller than the width of the lower bracket 42. This allows the front faces of the upper bracket 41 and the lower bracket 42 to be flush, forming a second groove 45 between the rear face of the upper bracket 41 and the wall of the lower bracket 42. The height of the connecting member 43 is greater than the total thickness of the upper bracket 41 and the lower bracket 42, ensuring that when the connecting member 43 connects the upper bracket 41 and the lower bracket 42 together, the upper and lower brackets can have a first groove 44 for the transmission rack 3 to be placed. Figure 6 As shown, the teeth of the transmission rack 3 face to the left, i.e., it is horizontally positioned. The motor drive gear 2 is located outside the limiting bracket 4 and meshes with the transmission rack 3 in the first slide groove 44. When the motor 1 rotates, it can drive the transmission rack 3 to rotate relative to the first slide groove 44 of the limiting bracket 4 through the motor drive gear 2. It should be noted that the sliding assembly structure between the first slide groove 44 and the transmission rack 3 should be a sliding assembly structure with a certain resistance, so that the transmission rack 3 needs to overcome a certain resistance when rotating, thereby increasing the stability of the rotation of the transmission rack 3.
[0053] Furthermore, the connector 43 has a C-shaped structure with an arc-shaped outer surface. The upper and lower ends of the connector 43 are respectively engaged with the end faces of the upper bracket 41 and the lower bracket 42. The upper bracket 41 and the lower bracket 42 are connected together by the connector 43 to form a limiting bracket.
[0054] like Figure 6 As shown, the stabilizing components further include:
[0055] The driven gear 5 is rotatably sleeved on the outside of the limiting bracket 4 and has a certain resistance when rotating; furthermore, the driven gear 5 is sleeved on the connecting member 43.
[0056] The auxiliary gear 6 is located outside the limit bracket 4 and meshes with the driven gear 5, and can rotate under the drive of the driven gear 5;
[0057] The spiral teeth 7 are arranged around the inner ring of the driven gear 5; the curvature of the outer arc wall of the connecting piece 43 is adapted to the curvature of the tooth circle formed by the spiral teeth 7 inside the driven gear 5.
[0058] Several thrust pins 8 are fixedly installed on the full-circle transmission rack 3 and can move together with the transmission rack 3 when it moves; for example... Figure 6 As shown, it should be noted that the thrust pin 8 is fixed to the transmission rack 3 in a fixed connection manner, and as... Figure 5 and Figure 6As shown, the upper part of the thrust pin 8 passes through the second sliding groove 45 formed between the upper bracket 41 and the lower bracket 42, and protrudes from the top of the upper bracket 41. Through the cooperation between the thrust pin 8 and the helical gear 7, the driven gear 5 can be driven to rotate when the transmission rack 3 rotates. It should be noted that by fixing the thrust pin 8 to the transmission rack 3, and setting the first sliding groove 44 and the second sliding groove 45 at a 90-degree angle, the transmission rack 3 forms two degrees of freedom in the horizontal and vertical directions within the limiting bracket 4, improving operational stability. The auxiliary gear 6 can rotate freely, and both the auxiliary gear 6 and the driven gear 5 can only rotate around their central axis.
[0059] Furthermore, such as Figure 4 and Figure 5 As shown, there are three driven gears 5, which are spaced apart around the circumference of the limiting bracket 4.
[0060] Furthermore, such as Figure 5 As shown, the transmission rack 3 has a fixing block 9 for assembly with the door panel 300. Since the door panel 300 has a certain width in the horizontal direction, the fixing block 9 is a long strip structure. The length of the fixing block 9 in the horizontal direction is equal to or close to the width of the door panel 300 in the horizontal direction.
[0061] It should be noted that "close" here refers to a size difference of 1-3cm.
[0062] The motion mechanism provided by this invention is a mechanism in which all operating links are replaced by gear transmission. It features high transmission efficiency, high reliability (avoiding vibration), and can achieve "zero-gap" closure of the door panel. Furthermore, it boasts high component versatility and a simple structure. "Zero-gap" closure refers to a gap of less than 2mm between the closed door panel and the exterior surface. Figure 1 and Figure 2 As shown, the high transmission efficiency compared to existing rack-and-pinion pusher plate and pusher plate pusher block structures is relatively low compared to transmissions where all transmission links are gears (or racks) (gear transmission efficiency can reach over 95%). This is because gear or rack transmissions involve meshing between teeth, and with the application of silicone grease, wear (energy loss) is minimal. Transmission efficiency is the ratio of output power to input power; since almost all input power is converted into output power, the efficiency is very high. However, existing transmission links involve friction and wear between the pusher plate and rack, the pin and pusher plate / rack, and the pusher plate and slider. This type of wear is sliding friction, resulting in relatively high energy loss; some input power is converted into heat and consumed, thus reducing transmission efficiency.
[0063] The assembly steps of the motion mechanism of the present invention are as follows: Figure 5 As shown, the irregular arc (closed) limiting bracket 4 is assembled with the arc (closed) flexible transmission rack 3. The transmission rack 3 can be directly inserted into the first sliding groove 44 inside the limiting bracket 4 for assembly (as shown in the figure). Figure 5 As shown, each of the three driven gear 5 positions is equipped with a connecting piece 43 featuring an arc-shaped rib. The upper support 41 and lower support 42 of the limiting bracket 4 are connected via the connecting piece 43. The connecting piece 43 serves both to support the upper end of the limiting bracket 4 and to allow the driven gear 5 to rotate smoothly around its central axis in conjunction with the arc-shaped connecting piece 43. Next to each of the three driven gear 5 positions are three auxiliary gears 6, which can rotate freely. The transmission rack 3 has a long strip-shaped fixing block 9 that is fixed to the door panel 300. The operating range of the transmission rack 3 corresponds to... Figure 4 The irregular trajectory of the variable trajectory is shown. The irregular trajectory is determined by the program set on the motherboard. The read speed and cycle set on the motherboard can determine the travel range. Of course, a conventional limit structure can also be designed to achieve travel limit, but this is not the focus of this invention, so it will not be elaborated. The thrust pin 8 cooperates with the helical teeth 7. That is to say, the helical teeth 7 on the inner ring of the driven gear 5 are not arranged vertically in the gear depth direction (axial direction) but in a helical distribution (called helical teeth). After the thrust pin 8 on the transmission rack 3 enters the helical teeth 7, the thrust pin 8 will give a thrust to the irregularly distributed helical teeth 7. The second thrust pin 8 will then give a thrust to the second row of helical teeth 7. This process is repeated continuously, so that the transmission rack 3 runs while the driven gear 5 rotates.
[0064] Specific operating procedure: When the air conditioner is working, the transmission motor 1 drives the motor drive gear 2 to rotate. The motor drive gear 2 then drives the transmission rack 3 and the fixing block 9 assembled with the door panel 300 to move. The fixing block 9 in the transmission rack 3 (driving the door panel 300) moves within the operating trajectory range. When the door panel fixing block 9 in the transmission rack 3 moves to the position shown in the diagram... Figure 4 When the door panel moves along an irregular track, it can achieve "zero-gap" closure (the door panel has a forward pushing trajectory). During the operation of the transmission rack 3, the thrust pin 8 on the upper end of the transmission rack 3 also synchronously drives the three driven gears 5 to rotate. The damping is increased through the meshing transmission of the three driven gears 5 with the flexible transmission rack 3 and the driven gears 5 with the auxiliary gear 6, thus preventing the transmission rack 3 from tilting or shaking during operation and ensuring that the transmission rack 3 (and the door panel 300) can move stably around the arc. Figure 6 As shown, the raised running trajectory enables track changing, allowing the door panel 300 to arch slightly forward when it reaches the closed end, achieving zero gap (within 2mm) between the door panel 300 and the decorative panel 900.
[0065] like Figure 3 and Figure 4 As shown, the present invention provides a sliding door, including a door panel 300 and a motion mechanism installed at the top and bottom of the door panel 300.
[0066] The sliding door of this invention uses gear transmission to replace all operating links (gear transmission efficiency can reach over 95%), resulting in high transmission efficiency. By adding auxiliary gears and increasing damping, the vibration problem is solved and wear is avoided. By setting a variable trajectory part, the door panel movement achieves "zero gap" closure through variable track movement. The motion mechanism also features a simple structure and high parts versatility. The six driven gears and six auxiliary gears are interchangeable, resulting in low cost and high assembly efficiency.
[0067] like Figure 3 As shown, the present invention provides an indoor unit including a decorative panel 900, the decorative panel 900 having an air outlet; the air outlet is fitted with the aforementioned sliding door.
[0068] The indoor unit provided by this invention uses a highly versatile and low-cost motion mechanism to drive the sliding door, thereby solving the problem of door panel vibration during operation, improving operational stability, and achieving "zero-gap" closure of the door panel.
[0069] The present invention provides an air conditioner, including the above-mentioned indoor unit.
[0070] The indoor unit is a square cabinet unit.
[0071] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A motion mechanism, characterized in that, The motion mechanism is positioned on both sides of the component to be pushed, enabling it to reciprocate; the motion mechanism includes: An electric motor is used to provide driving force; A motor-driven gear is connected to the output shaft of the motor and is driven by the motor. A transmission rack meshes with the motor drive gear to drive the component to move. A stabilizing component is connected to the drive rack to ensure stable operation of the drive rack. The stabilizing component includes: The limiting bracket is an irregularly convex annular structure to form a variable trajectory section at the convex part; the component to be pushed is installed on the transmission rack at the position corresponding to the variable trajectory section; The first slide groove is horizontally disposed within the limiting bracket. The transmission rack has a circular structure and is slidably installed within the first slide groove, and has a certain resistance when sliding. The second slide is vertically arranged inside the limiting bracket; The stabilizing component further includes: a driven gear, which is rotatably sleeved on the outside of the limiting bracket and has a certain resistance when rotating; An auxiliary gear meshes with the driven gear. The helical teeth are arranged around the entire inner ring of the driven gear; Several thrust pins are fixedly installed on the entire circle of the transmission rack and slidably disposed in the second slide groove, and can move together with the transmission rack when it moves; The thrust pin engages with the helical teeth, enabling it to drive the driven gear to rotate during movement.
2. The motion mechanism according to claim 1, characterized in that, The limiting bracket is a split structure, including: an upper bracket and a lower bracket spaced apart, and a connector connecting the upper bracket and the lower bracket together, wherein the gap between the upper bracket and the lower bracket forms a first horizontal sliding groove.
3. The motion mechanism according to claim 2, characterized in that, The connector has a C-shaped structure, with its upper and lower ends respectively secured to the end faces of the upper and lower supports.
4. The motion mechanism according to claim 1, characterized in that, The number of driven gears is three, which are spaced apart along the circumference of the limiting bracket.
5. The motion mechanism according to claim 1, characterized in that, The transmission rack has a fixing block for assembling with the component to be pushed.
6. The motion mechanism according to claim 5, characterized in that, The length of the fixing block is equal to or close to the width of the component to be pushed.
7. A sliding door, characterized in that, It includes a door panel and a motion mechanism as described in any one of claims 1-6, mounted on the top and bottom of the door panel.
8. An indoor unit, characterized in that, Including the sliding door as described in claim 7.
9. An air conditioner, characterized in that, Including the indoor unit as described in claim 8.