Variable rail movement assembly, drive mechanism and air conditioner

Abstract

The application provides a variable track movement assembly, a driving mechanism and an air conditioner. A slider is movably arranged along a predetermined track which is arranged in a variable extending direction on a component to be installed. A first roller is rotatably arranged around its center line to rollingly contact the component to be installed. A connecting part is connected with the first roller. The connecting part comprises two limiting ribs. A limiting part is arranged on the slider. The limiting part comprises two limiting grooves which are arranged in a predetermined direction and are spaced apart to respectively install the two limiting ribs. The width of each limiting groove is greater than the width of the corresponding limiting rib. The projections of the two limiting grooves on a predetermined plane perpendicular to the predetermined direction do not completely coincide. The extending direction of the limiting rib changes with the movement direction of the slider. The first roller is kept in a rolling state. The problem that the sliding friction between the roller on the slider in the driving box of the air conditioner in the prior art and the box body of the driving box is large when the slider changes tracks is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a variable-rail movement assembly, a driving mechanism and an air conditioner. BACKGROUND

[0002] The door panel of the air conditioner in the prior art is provided with a variable rail, and a flexible rack or the like is mainly used in the driving box to realize sliding of the sliding block, so as to drive the door panel to open or close, which has the advantages of good movement smoothness, stable structure, convenient installation and the like.

[0003] However, the sliding friction between the rollers on the sliding block and the box body of the driving box is large when the sliding block changes the rail, so that the movement of the sliding block is not smooth when the sliding block changes the rail, which increases the shaking and noise of the door panel during the movement process, and even causes large wear of the rollers and the like, which not only leads to poor user experience, but also reduces the service life of the driving box. SUMMARY

[0004] The main purpose of the present application is to provide a variable-rail movement assembly, a driving mechanism and an air conditioner, so as to solve the problem of large sliding friction between the rollers on the sliding block in the driving box of the air conditioner in the prior art and the box body of the driving box when the sliding block changes the rail.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a variable-rail movement assembly is provided, comprising: a sliding block, the sliding block is movably arranged on a to-be-installed component along a predetermined track, and the extension direction of the predetermined track is variably arranged; a first roller, the first roller is rotatably arranged around its center line, and is used for rolling contact with the to-be-installed component; a connecting part, the connecting part is connected with the first roller, and the connecting part comprises two limiting ribs which are arranged along the rotation axis of the first roller and are parallel to the rotation axis of the first roller, and a limiting part is arranged on the sliding block, and the limiting part comprises two limiting grooves which are arranged along a predetermined direction and are used for mounting the two limiting ribs respectively; wherein, the width of each limiting groove is greater than the width of the corresponding limiting rib, and the projections of the two limiting grooves on a predetermined plane perpendicular to the predetermined direction do not completely coincide, so that the extension direction of the limiting rib changes with the change of the movement direction of the sliding block, so that the first roller remains in a rolling state.

[0006] Further, one limiting groove comprises a first limiting surface and a second limiting surface arranged along the width direction of the limiting groove, and the other limiting groove comprises a third limiting surface and a fourth limiting surface arranged along the width direction of the limiting groove, the first limiting surface and the third limiting surface are located on the first side of the connecting part, and the second limiting surface and the fourth limiting surface are located on the second side of the connecting part; the distance between the first limiting surface and the second limiting surface in the width direction of the limiting groove is L1, the distance between the first limiting surface and the second limiting surface in the width direction of the limiting groove is L2, the distance between the first limiting surface and the fourth limiting surface in the width direction of the limiting groove is L3, the distance between the second limiting surface and the third limiting surface in the width direction of the limiting groove is L4, and the width of the limiting rib is B; wherein L4>L2>L3, and L4>L1>L3.

[0007] Further, 1mm≤L1-B≤5mm; and / or 1mm≤L2-B≤5mm; and / or 0mm<L3-B≤0.2mm; and / or 4mm≤L4-B≤10mm.

[0008] Further, the connecting part further comprises a rotating connecting block, the first roller is rotatably arranged on the rotating connecting block and located on the side of the rotating connecting block away from the sliding block; the center line of the rotating connecting block is perpendicular to the rotation axis of the first roller, and the two limiting ribs are connected with the two ends of the rotating connecting block respectively, so that the connecting part rotates around the center line of the rotating connecting block relative to the limiting part when the extension direction of the connecting part changes with the change of the movement direction of the sliding block.

[0009] Further, the rotation angle of the extension direction of the connecting part is A; wherein A≤50 degrees.

[0010] Further, the rotation angle of the extension direction of the connecting part is A; wherein A≤23 degrees.

[0011] Further, the variable track movement assembly comprises a supporting connecting piece and an elastic piece, the large end of the supporting connecting piece is located on one side of the sliding block, the first end of the supporting connecting piece passes through the sliding block to the other side of the sliding block to be fixedly connected with the first roller or the connecting part, and the elastic piece is sleeved on the supporting connecting piece and located between the sliding block and the connecting part, so that the first roller and the component to be installed are kept in contact.

[0012] Further, the number of the connecting parts is multiple, and the multiple connecting parts are arranged on the sliding block in a spaced manner; the number of the first rollers and the connecting parts is multiple, and the multiple first rollers are arranged in one-to-one correspondence with the multiple connecting parts through the multiple connecting parts.

[0013] According to a second aspect of the present application, there is provided a driving mechanism, comprising: a driving box and a driving box cover, which are matched and connected to jointly form a mounting space; the variable-rail moving assembly as described above, which is movably arranged along a predetermined track in the mounting space; a driving component, which is at least partially arranged in the mounting space and drivingly connected with the slider of the variable-rail moving assembly to drive the slider to slide, and the first roller of the variable-rail moving assembly is arranged to be in rolling contact with one of the driving box and the driving box cover.

[0014] Further, one of the driving box and the driving box cover is provided with a first guide groove extending along the predetermined track, and the first guide groove is provided with a deceleration structure arranged to be in contact with the first roller to guide the first roller to move to a predetermined position.

[0015] Further, the deceleration structure comprises a planar section and a slope section connected with each other, the planar section is parallel to and higher than a groove bottom surface of the first guide groove, and the slope section is connected with the planar section and the groove bottom surface of the first guide groove at two ends thereof.

[0016] Further, an included angle between the slope section and the groove bottom surface of the first guide groove is C, wherein the value of C is in a range of 0.5 degrees ≤ C ≤ 3 degrees; and / or the height of the planar section is H, wherein the value of H is in a range of 0.3 mm ≤ H ≤ 0.8 mm; and / or the length of the slope section is L5, wherein the value of L5 is in a range of 10 mm ≤ L5 ≤ 30 mm.

[0017] Further, the included angle between the slope section and the groove bottom surface of the first guide groove is C, wherein C = 1 degree; and / or the height of the planar section is H, wherein H = 0.5 mm; and / or the length of the slope section is L5, wherein L5 = 20 mm.

[0018] Further, the driving box is provided with a first guide groove extending along the predetermined track, one of the driving box cover is provided with a second guide groove extending along the predetermined track, the first roller is arranged on a side of the slider close to the driving box to be in contact with the first guide groove, and the variable-rail moving assembly further comprises: a second roller, which is rotatably arranged on the slider about a center line thereof and is arranged on a side of the slider close to the driving box cover to be in contact with the second guide groove; and / or a guide component, the side of the slider close to the driving box is provided with a first mounting column, and the guide component is arranged outside the first mounting column to be in contact with the first guide groove; and / or an elastic shaft sleeve, the side of the slider close to the driving box cover is provided with a second mounting column, and the elastic shaft sleeve is arranged outside the second mounting column to be in contact with the second guide groove.

[0019] According to a third aspect of the present application, there is provided an air conditioner, comprising the driving mechanism as described above, and further comprising a shell and a door plate, the shell is provided with an air outlet, and the door plate is movably arranged in the shell at the air outlet by the driving mechanism to open or close the air outlet.

[0020] According to the technical scheme of the present application, the variable track movement assembly comprises a sliding block movably arranged on a component to be installed along a predetermined track, the extension direction of the predetermined track being changeable; a first roller rotatably arranged around its center line for rolling contact with the component to be installed; a connecting part connected with the first roller, the connecting part comprising two limiting ribs arranged along the rotation axis of the first roller and parallel to the rotation axis of the first roller, a limiting part being arranged on the sliding block, the limiting part comprising two limiting grooves arranged along a predetermined direction for respectively mounting the two limiting ribs; wherein the width of each limiting groove is greater than the width of the corresponding limiting rib, and the projections of the two limiting grooves on a predetermined plane perpendicular to the predetermined direction do not completely coincide, so that the extension direction of the limiting rib changes with the change of the movement direction of the sliding block, and the first roller remains in a rolling state. Thus, the variable track movement assembly of the present application can keep the first roller and the component to be installed in a rolling state at all times, and the sliding friction between the first roller and the component to be installed when the sliding block changes track is changed to rolling friction, solving the problem of large sliding friction between the roller on the sliding block in the drive box of the air conditioner in the prior art and the box body of the drive box when the sliding block changes track, making the movement of the sliding block more smooth when changing track, making the force borne by the door panel during the movement process relatively balanced, reducing the shaking and noise of the door panel during the movement process, avoiding wear on the first roller and the like, improving the comfort experience of the user, ensuring the service life of the drive box, and at the same time reducing the precision requirements for the parts, realizing reliable and effective control of the opening and closing of the door panel by only arranging a single motor, thereby reducing the processing cost of the air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The illustrations are shown to explain the present application and are not intended to limit the present application in any manner. In the drawings:

[0022] Figure 1 A structural schematic view of an embodiment of the variable track movement assembly according to the present application is shown;

[0023] Figure 2 A structural schematic view of an embodiment of the variable track movement assembly according to the present application is shown; Figure 1 An exploded view of the variable track movement assembly is shown;

[0024] Figure 3 A structural schematic view of an embodiment of the variable track movement assembly according to the present application is shown; Figure 1 A bottom view of the variable track movement assembly in a non-variable track state is shown;

[0025] Figure 4 A structural schematic view of an embodiment of the variable track movement assembly according to the present application is shown; Figure 3 A partial enlarged view of P of the variable track movement assembly is shown;

[0026] Figure 5 A variable track movement assembly is shown in a variable track state; Figure 1 A bottom view of the variable track movement assembly shown in a variable track state;

[0027] Figure 6 A variable track movement assembly is shown in a variable track state; Figure 5 An enlarged view of Q of the variable track movement assembly shown;

[0028] Figure 7 A variable track movement assembly is shown in a variable track state; Figure 1 A structural schematic view of a first roller and a connecting part of the variable track movement assembly shown;

[0029] Figure 8 A structural schematic view of an embodiment of a driving mechanism according to the present application;

[0030] Figure 9 A variable track movement assembly is shown in a variable track state; Figure 8 An exploded view of the driving mechanism shown;

[0031] Figure 10 A variable track movement assembly is shown in a variable track state; Figure 8 A front view of the driving mechanism shown;

[0032] Figure 11 A variable track movement assembly is shown in a variable track state; Figure 10 An enlarged view of a part of the driving mechanism shown;

[0033] Figure 12 A variable track movement assembly is shown in a variable track state; Figure 8 A partial sectional view of the driving mechanism shown;

[0034] Figure 13 A variable track movement assembly is shown in a variable track state; Figure 12 An enlarged view of a part of the driving mechanism shown;

[0035] Figure 14 A variable track movement assembly is shown in a variable track state; Figure 8 A structural schematic view of a driving box of the driving mechanism shown.

[0036] Wherein, the above-mentioned drawings include the following reference signs:

[0037] 1, slider; 10, limiting part 11, limiting groove; 111, first limiting surface; 112, second limiting surface; 113, third limiting surface; 114, fourth limiting surface;

[0038] 2, first roller;

[0039] 3, connecting part; 31, limiting rib; 32, rotating connecting block;

[0040] 4, support connecting piece; 5, elastic piece; 6, elastic shaft sleeve; 7, second roller; 8, guide part;

[0041] 100, drive box; 110, first guide groove; 120, speed reduction structure; 121, flat section; 122, slope section;

[0042] 200, drive box cover; 300, drive component; 400, variable track movement assembly. DETAILED DESCRIPTION

[0043] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] As Figures 1 to 14 shown, the present application provides a variable track movement assembly 400, comprising: a sliding block 1 movably arranged on a component to be installed along a predetermined track, an extension direction of the predetermined track being variably arranged; a first roller 2 rotatably arranged around a center line thereof for rolling contact with the component to be installed; a connecting part 3 connected with the first roller 2, the connecting part 3 comprising two limiting ribs 31 spaced apart along an axis of rotation of the first roller 2 and each parallel to the axis of rotation of the first roller 2, a limiting part 10 being arranged on the sliding block 1, the limiting part 10 comprising two limiting grooves 11 spaced apart along a predetermined direction for respectively mounting the two limiting ribs 31; wherein a width of each limiting groove 11 is greater than a width of the corresponding limiting rib 31, and projections of the two limiting grooves 11 on a predetermined plane perpendicular to the predetermined direction do not completely coincide, so that an extension direction of the limiting rib 31 changes with a change in a movement direction of the sliding block 1, so that the first roller 2 remains in a rolling state.

[0045] Thus, the variable track movement assembly 400 of the present application can keep the first roller 2 in a rolling state with the component to be installed at all times, and change the sliding friction between the first roller 2 and the component to be installed when the sliding block 1 changes the track into rolling friction, thereby solving the problem of large sliding friction between the roller on the sliding block in the drive box of the air conditioner in the prior art and the box body of the drive box when the sliding block changes the track, making the movement of the sliding block 1 more smooth when changing the track, making the force borne by the door panel during the movement process relatively balanced, reducing the shaking and noise of the door panel during the movement process, avoiding wear and tear on the first roller 2 and the like, improving the comfort experience of the user, ensuring the service life of the drive box, and at the same time reducing the precision requirements for the parts, realizing reliable and effective control of the opening and closing of the door panel by only setting a single motor, thereby reducing the processing cost of the air conditioner.

[0046] As Figure 4 and Figure 6As shown, one limiting groove 11 includes a first limiting surface 111 and a second limiting surface 112 arranged along the width direction of the limiting groove 11, and the other limiting groove 11 includes a third limiting surface 113 and a fourth limiting surface 114 arranged along the width direction of the limiting groove 11, the first limiting surface 111 and the third limiting surface 113 are located on the first side of the connecting part 3, and the second limiting surface 112 and the fourth limiting surface 114 are located on the second side of the connecting part 3; the distance between the first limiting surface 111 and the second limiting surface 112 in the width direction of the limiting groove 11 is L1, the distance between the first limiting surface 111 and the second limiting surface 112 in the width direction of the limiting groove 11 is L2, the distance between the first limiting surface 111 and the fourth limiting surface 114 in the width direction of the limiting groove 11 is L3, the distance between the second limiting surface 112 and the third limiting surface 113 in the width direction of the limiting groove 11 is L4, and the width of the limiting rib 31 is B; wherein, L4>L2>L3, and L4>L1>L3. In this way, the maximum change position of the connecting part 3 can be limited, so that the first roller 2 can flexibly adjust the posture according to the change of the predetermined track, ensure the stable rolling of the first roller 2 on the component to be installed, reduce the shaking and noise of the variable track motion assembly 400 during the motion process, and be suitable for occasions requiring high-precision motion control, and improve the user experience.

[0047] Specifically, 1mm≤L1-B≤5mm; and / or 1mm≤L2-B≤5mm; and / or 0mm<L3-B≤0.2mm; and / or 4mm≤L4-B≤10mm. In this way, the smoothness of the motion of the first roller 2 is ensured, while the unstable motion of the first roller 2 caused by excessive gap is avoided, and the stability and reliability of the variable track motion assembly 400 are improved.

[0048] As shown in Figure 7 The connecting part 3 further includes a rotating connecting block 32, and the first roller 2 is rotatably arranged on the rotating connecting block 32 and located on the side of the rotating connecting block 32 away from the sliding block 1; the center line of the rotating connecting block 32 is perpendicular to the rotation axis of the first roller 2, and the two limiting ribs 31 are respectively connected with the two ends of the rotating connecting block 32, so that when the connecting part 3 changes in the extension direction of the two limiting ribs 31 with the change of the motion direction of the sliding block 1, it rotates around the center line of the rotating connecting block 32 relative to the limiting part 10, so that the first roller 2 can more flexibly adjust the posture.

[0049] As shown in Figure 4 and Figure 6 The rotation angle of the extension direction of the connecting part 3 is A; wherein, A≤50 degrees. In this way, by limiting the rotation angle, it can be ensured that the first roller 2 will not exceed the predetermined range when adjusting the direction, avoiding unstable factors during the motion process, and being suitable for occasions requiring stable motion within a certain angle range.

[0050] Specifically, the rotation angle of the extension direction of the connecting part 3 is A; wherein A≤23 degrees. The smaller rotation angle limit makes the first roller 2 more accurate when adjusting the direction, which is suitable for occasions that require high-precision motion control.

[0051] As shown in Figure 12 and Figure 13 The variable rail motion assembly 400 includes a support connecting piece 4 and an elastic piece 5. The large end of the support connecting piece 4 is located on one side of the slider 1, and the first end of the support connecting piece 4 passes through the slider 1 to the other side of the slider 1 to be fixedly connected with the first roller 2 or the connecting part 3. The elastic piece 5 is sleeved on the support connecting piece 4 and located between the slider 1 and the connecting part 3, so that the first roller 2 maintains contact with the component to be installed. In this way, the first roller 2 can maintain good contact with the component to be installed during movement, reducing the shaking and noise of the first roller 2 during movement.

[0052] Specifically, the elastic piece 5 can be a compression spring. This further optimizes the sound produced by the variable rail motion assembly 400 during movement, reducing the precision requirements of the components of the variable rail motion assembly 400.

[0053] As shown in Figures 1 to 6 The number of connecting parts 3 is multiple, and the multiple connecting parts 3 are arranged at intervals on the slider 1. The number of first rollers 2 and connecting parts 3 is multiple, and the multiple first rollers 2 are arranged one by one in the multiple connecting parts 3 through the multiple connecting parts 3, further improving the stability and reliability of the variable rail motion assembly 400.

[0054] As shown in Figures 8 to 14 The application provides a driving mechanism, which includes a driving box 100 and a driving box cover 200, the driving box 100 and the driving box cover 200 are matched and connected to jointly form an installation space; the variable rail motion assembly 400 described above, the variable rail motion assembly 400 is movably arranged in the installation space along a predetermined track; a driving component 300, the driving component 300 is at least partially arranged in the installation space and drivingly connected with the slider 1 of the variable rail motion assembly 400 to drive the slider 1 to slide, and the first roller 2 of the variable rail motion assembly 400 is used to rollingly contact one of the driving box 100 and the driving box cover 200.

[0055] As shown in Figures 10 to 14As shown, one of the drive box 100 and the drive box cover 200 is provided with a first guide groove 110 extending along a predetermined track, and the first guide groove 110 is provided with a deceleration structure 120 for contacting the first roller 2 to prompt the first roller 2 to move to a predetermined position. This method is more timely and accurate than the method of adjusting the motor speed by judging the number of steps of the motor. Even if the user manually adjusts the door panel position during the process, the deceleration position of the first roller 2 will not change, achieving the purpose of mechanical anti-pinch hand. Moreover, the setting of the deceleration structure 120 has relatively low precision requirements for parts such as the drive box 100 and the drive box cover 200, reducing the impact of assembly errors of the drive mechanism. The first roller 2 can be adaptively adjusted by the elastic member 5 on the slider assembly at any position in the first guide groove 110.

[0056] As shown in Figures 10 to 14 , the deceleration structure 120 includes a planar section 121 and a slope section 122 connected together. The planar section 121 is parallel to and higher than the groove bottom surface of the first guide groove 110. The two ends of the slope section 122 are connected with the planar section 121 and the groove bottom surface of the first guide groove 110 respectively, so that the first roller 2 can smoothly move to the planar section 121 during movement, reducing the impact and noise of the first roller 2 during movement.

[0057] As shown in Figure 11 and Figure 13 , the included angle between the slope section 122 and the groove bottom surface of the first guide groove 110 is C, wherein the value range of C is 0.5 degrees ≤ C ≤ 3 degrees; and / or the height of the planar section 121 is H, wherein the value range of H is 0.3 mm ≤ H ≤ 0.8 mm; and / or the length of the slope section 122 is L5, wherein the value range of L5 is 10 mm ≤ L5 ≤ 30 mm. In this way, it can be accurately judged whether the first roller 2 reaches the predetermined position during movement, and the first roller 2 will not be subjected to excessive resistance or impact due to improper setting of the angle or length of the slope section 122.

[0058] Specifically, the included angle between the slope section 122 and the groove bottom surface of the first guide groove 110 is C, wherein C = 1 degree; and / or the height of the planar section 121 is H, wherein H = 0.5 mm; and / or the length of the slope section 122 is L5, wherein L5 = 20 mm. In this way, it can be ensured that the first roller 2 reaches the predetermined position in an optimal manner during movement, reducing the energy loss of the first roller 2 during movement, and the user can be prompted.

[0059] As shown in Figure 1 , Figure 2 and Figure 14As shown, the driving box 100 is provided with a first guide groove 110 extending along a predetermined track, one of the driving box covers 200 is provided with a second guide groove extending along a predetermined track, the first roller 2 is located on the side of the sliding block 1 close to the driving box 100 to contact the first guide groove 110, and the variable track movement assembly 400 further comprises: a second roller 7 rotatably arranged on the sliding block 1 around the center line thereof and located on the side of the sliding block 1 close to the driving box cover 200 to contact the second guide groove; and / or a guide component 8, the side of the sliding block 1 close to the driving box 100 is provided with a first mounting column, and the guide component 8 is sleeved on the outside of the first mounting column to contact the first guide groove 110; and / or an elastic shaft sleeve 6, the side of the sliding block 1 close to the driving box cover 200 is provided with a second mounting column, and the elastic shaft sleeve 6 is sleeved on the outside of the second mounting column to contact the second guide groove.

[0060] The application further provides an air conditioner comprising the above driving mechanism, and the air conditioner further comprises a shell and a door plate, the shell is provided with an air outlet, and the door plate is movably arranged on the shell at the air outlet by the driving mechanism to open or close the air outlet.

[0061] Specifically, the air conditioner of the application is a cabinet air conditioner, one of the driving box 100 and the driving box cover 200 of the driving mechanism is connected with the shell of the cabinet air conditioner, the door plate is connected with the sliding block 1 of the variable track movement assembly 400 in the driving mechanism to move with the sliding block 1, and most of the predetermined track of the door plate is a regular circumferential track, and only a change track exists in the process of closing to the position or just opening.

[0062] The upper and lower sides of the door plate are connected with the shell through two variable track movement assemblies 400 respectively, so that the size fluctuation range of the door plate can have an adaptive process, the influence of thermal barrier cold contraction of the door plate in hot or cold environment is smaller, abnormal problems such as jamming and sound caused by the change of environmental temperature of the variable track movement assembly 400 are effectively prevented, and the reliability of the air conditioner is improved.

[0063] When the door plate moves along the circular arc track in the predetermined track, the extension direction of each limiting rib 31 of the connecting part 3 is parallel to the side wall of the corresponding limiting groove 11 to roll with the sliding of the sliding block 1, and when the door plate moves along the change track in the predetermined track, the first roller 2 rotates a certain angle around the center line of the rotating connecting block 32 with the connecting part 3 to roll with the sliding of the sliding block 1.

[0064] From the above description, it can be seen that the above embodiments of the application achieve the following technical effects:

[0065] The variable track movement assembly 400 of the present application comprises a sliding block 1 movably arranged on a component to be installed along a predetermined track, the extension direction of the predetermined track being arranged changeably; a first roller 2 rotatably arranged around its center line for rolling contact with the component to be installed; a connecting part 3 connected with the first roller 2, the connecting part 3 comprising two limiting ribs 31 arranged along the rotation axis of the first roller 2 and parallel to the rotation axis of the first roller 2, the sliding block 1 being provided with a limiting part 10 comprising two limiting grooves 11 arranged along a predetermined direction for respectively mounting the two limiting ribs 31; wherein the width of each limiting groove 11 is greater than the width of the corresponding limiting rib 31, and the projections of the two limiting grooves 11 on a predetermined plane perpendicular to the predetermined direction do not completely coincide, so that the extension direction of the limiting rib 31 changes with the change of the movement direction of the sliding block 1, so that the first roller 2 remains in a rolling state. In this way, the variable track movement assembly 400 of the present application can keep the first roller 2 and the component to be installed in a rolling state at all times, and the sliding friction between the first roller 2 and the component to be installed when the sliding block 1 changes the track is changed to rolling friction, solving the problem of large sliding friction between the roller on the sliding block in the drive box of the air conditioner in the prior art and the box body of the drive box when the sliding block changes the track, making the movement of the sliding block 1 more smooth when changing the track, making the force borne by the door panel during the movement process relatively balanced, reducing the shaking and noise of the door panel during the movement process, avoiding wear on the first roller 2 and the like, improving the comfort experience of the user, ensuring the service life of the drive box, at the same time reducing the precision requirements for parts, realizing reliable and effective control of the opening and closing of the door panel by only arranging a single motor, thereby reducing the processing cost of the air conditioner.

[0066] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise, and it should be further understood that the terms "comprise" and / or "include" as used in the specification indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] The foregoing description, for purposes of clarity, describes the present application in terms of its components, processes and operations. Such descriptions and representations are the means used by those skilled in the art of describing the physical structure, configuration and operation of implementations of the application in the best mode contemplated for carrying out the application. However, the application should not be construed as limited to the descriptions and representations used because the purposed described herein can be produced by other equally effective components, processes, acts, structures, functionality, locations, material, acts, and the like but not explicitly described. All such suitable modifications and equivalents that would be within the scope of the present application are intended to be included.

[0068] In the description of the present application, it is to be understood that the specific location or position relationships indicated by directional terms, such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "top", "bottom", and the like, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the scope of protection of the present application. The orientation terms "inner" and "outer" refer to the inner and outer contours of the components themselves.

[0069] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial position relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices as described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0070] In addition, it should be noted that the use of the terms "first", "second", and the like, to describe various elements, is merely intended to distinguish one element from another, and does not have a special meaning unless otherwise stated, and therefore cannot be construed as limiting the scope of protection of the present application.

[0071] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A variable gauge motion assembly, comprising: The utility model relates to a slider (1) is movably arranged in the component to be installed along the predetermined trajectory, the extension direction of the predetermined trajectory is changeably arranged, a first roller (2) is rotatably arranged around the center line of itself for rolling contact with the component to be installed, a connecting part (3) is connected with the first roller (2), the connecting part (3) includes two limiting ribs (31) spaced along the rotation axis of the first roller (2) and parallel to the rotation axis of the first roller (2), a limiting part (10) is arranged on the slider (1), the limiting part (10) includes two limiting grooves (11) spaced along a predetermined direction to respectively install the two limiting ribs (31), wherein the width of each limiting groove (11) is greater than the width of the corresponding limiting rib (31), the projections of the two limiting grooves (11) on a predetermined plane perpendicular to the predetermined direction do not completely coincide, so that the extension direction of the limiting rib (31) changes with the change of the movement direction of the slider (1), so that the first roller (2) remains in a rolling state, one of the limiting grooves (11) includes a first limiting surface (111) and a second limiting surface (112) spaced along the width direction of itself, the other limiting groove (11) includes a third limiting surface (113) and a fourth limiting surface (114) spaced along the width direction of itself, the first limiting surface (111) and the third limiting surface (113) are located on the first side of the connecting part (3), and the second limiting surface (112) and the fourth limiting surface (114) are located on the second side of the connecting part (3), the distance between the first limiting surface (111) and the second limiting surface (112) in the direction parallel to the width direction of the limiting groove (11) is L1, the distance between the first limiting surface (111) and the second limiting surface (112) in the direction parallel to the width direction of the limiting groove (11) is L2, the distance between the first limiting surface (111) and the fourth limiting surface (114) in the direction parallel to the width direction of the limiting groove (11) is L3, the distance between the second limiting surface (112) and the third limiting surface (113) in the direction parallel to the width direction of the limiting groove (11) is L4, and the width of the limiting rib (31) is B, wherein L4>L2>L3, and L4>L1>L3. 1mm≤L1-B≤5mm; and / or 1mm≤L2-B≤5mm; and / or 0mm<L3-B≤0.2mm; and / or 4mm≤L4-B≤10mm. ​ ​ ​ ​ ​ ​ 2. The variable rail motion assembly of claim 1, wherein, ​ 3. The variable rail motion assembly of claim 1, wherein, The connecting part (3) further comprises a rotating connecting block (32), the first roller (2) is rotatably arranged on the rotating connecting block (32) and located on the side of the rotating connecting block (32) away from the sliding block (1), the center line of the rotating connecting block (32) is perpendicular to the rotating axis of the first roller (2), and the two limiting ribs (31) are connected with the two ends of the rotating connecting block (32) respectively, so that the connecting part (3) rotates around the center line of the rotating connecting block (32) relative to the limiting part (10) when the extension direction of the connecting part (3) changes with the change of the movement direction of the sliding block (1).

4. The variable rail motion assembly of claim 3, wherein, The rotating angle of the extension direction of the connecting part (3) is A; and A≤50 degrees.

5. The variable rail motion assembly of claim 3, wherein, The rotating angle of the extension direction of the connecting part (3) is A; and A≤23 degrees.

6. The variable rail motion assembly of claim 1, wherein, The variable rail movement assembly comprises a supporting connecting piece (4) and an elastic piece (5), the large end of the supporting connecting piece (4) is located on one side of the sliding block (1), the first end of the supporting connecting piece (4) passes through the sliding block (1) and reaches the other side of the sliding block (1) to be fixedly connected with the first roller (2) or the connecting part (3), and the elastic piece (5) is sleeved on the supporting connecting piece (4) and located between the sliding block (1) and the connecting part (3), so that the first roller (2) and the component to be installed are kept in contact.

7. The variable rail movement assembly according to any one of claims 1 to 6, wherein The number of the connecting parts (3) is multiple, and the multiple connecting parts (3) are arranged on the sliding block (1) at intervals; The number of the first rollers (2) and the connecting parts (3) is multiple, and the multiple first rollers (2) are arranged in one-to-one correspondence with the multiple connecting parts (3) through the multiple connecting parts (3).

8. A drive mechanism characterized by, Comprise: A drive box (100) and a drive box cover (200), the drive box (100) and the drive box cover (200) are matched and connected to jointly enclose an installation space; The variable rail movement assembly according to any one of claims 1 to 7, the variable rail movement assembly is movably arranged along a predetermined track in the installation space; A driving component (300) is at least partially arranged in the installation space and drivingly connected with a sliding block (1) of the variable rail movement assembly to drive the sliding block (1) to slide, and a first roller (2) of the variable rail movement assembly is used to rollingly contact one of the drive box (100) and the drive box cover (200).

9. The drive mechanism of claim 8, wherein, One of the drive box (100) and the drive box cover (200) is provided with a first guide groove (110) extending along the predetermined track, the first guide groove (110) is provided with a speed reduction structure (120), and the speed reduction structure (120) is used to contact the first roller (2) to prompt the first roller (2) to move to a predetermined position.

10. The drive mechanism of claim 9, wherein, The deceleration structure (120) comprises a connected plane section (121) and a slope section (122), the plane section (121) is parallel and higher than the groove bottom surface of the first guide groove (110), and the two ends of the slope section (122) are connected with the plane section (121) and the groove bottom surface of the first guide groove (110) respectively.

11. The drive mechanism according to claim 10, wherein, an included angle between the slope section (122) and the groove bottom surface of the first guide groove (110) is C, wherein 0.5 degrees ≤ C ≤ 3 degrees; and / or a height of the plane section (121) is H, wherein 0.3 mm ≤ H ≤ 0.8 mm; and / or a length of the slope section (122) is L5, wherein 10 mm ≤ L5 ≤ 30 mm.

12. The drive mechanism according to claim 10, wherein, an included angle between the slope section (122) and the groove bottom surface of the first guide groove (110) is C, wherein C = 1 degree; and / or a height of the plane section (121) is H, wherein H = 0.5 mm; and / or a length of the slope section (122) is L5, wherein L5 = 20 mm.

13. The drive mechanism of claim 8, wherein, The drive box (100) is provided with a first guide groove (110) extending along the predetermined track, the drive box cover (200) is provided with a second guide groove extending along the predetermined track, the first roller (2) is located on the side of the sliding block (1) close to the drive box (100) to contact the first guide groove (110), and the variable track movement assembly further comprises: a second roller (7) rotatably arranged on the sliding block (1) around the center line thereof and located on the side of the sliding block (1) close to the drive box cover (200) to contact the second guide groove; and / or a guide component (8), the side of the sliding block (1) close to the drive box (100) is provided with a first mounting column, and the guide component (8) is sleeved outside the first mounting column to contact the first guide groove (110); and / or an elastic shaft sleeve (6), the side of the sliding block (1) close to the drive box cover (200) is provided with a second mounting column, and the elastic shaft sleeve (6) is sleeved outside the second mounting column to contact the second guide groove.

14. An air conditioner characterized by comprising: The air conditioner comprises the drive mechanism according to any one of claims 8 to 13, and further comprises a shell and a door plate, the shell is provided with an air outlet, and the door plate is movably arranged on the shell at the air outlet by the drive mechanism to open or close the air outlet.

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