Volute assembly, fan device and air conditioner

Abstract

The present invention provides a volute assembly, a fan device and an air conditioner, wherein the volute assembly comprises: a volute component, on which a slide groove is arranged; a volute tongue component, which comprises: a volute tongue body, which is located in the volute component and is slidably arranged along the slide groove; a slider, which is arranged on the volute tongue body, and the slider is arranged corresponding to the slide groove for insertion into the slide groove; a clearance fit between the side wall of the slider and the side wall of the slide groove opposite thereto, and a clearance fit between the end face of the slider away from the volute tongue body and the bottom face of the slide groove to support the volute tongue component. The volute assembly of the present invention solves the problem that the volute tongue and its motion mechanism of the air conditioner in the prior art are prone to shaking and jamming during movement.

Description

Technical Field

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

[0002] The motion mechanism of the volute of the air conditioner in the prior art all uses a stepping motor to drive a plastic gear, and the plastic gear and the rack are meshed with each other to realize the operation of the motion mechanism.

[0003] However, during the production or use of air conditioners, the volute and its movement mechanism may often experience problems such as shaking, freezing, jamming or abnormal noise due to various reasons, causing the air conditioner to sweep air left and right or the corresponding mechanism to fail to operate normally, which may seriously cause the air conditioner to malfunction.

[0004] At present, the reasons for the jitter and jamming of the snail tongue and its motion mechanism during movement are as follows:

[0005] (1) If the installation position of the gear and rack is not properly controlled, it is easy to cause the tooth meshing clearance between the injection molded gear and the rack to be too large, resulting in quality problems such as jitter, jamming, jamming or FC function failure;

[0006] (2) The deformation and collapse of the rack will cause the meshing clearance between the injection molded gear and the rack to be too large, resulting in quality problems such as jitter, jamming, jamming or FC function failure;

[0007] (3) The inherent characteristics and defects of the motor: "motor virtual position", that is, the motor output shaft itself will shake slightly, which will cause the volute and its motion mechanism to vibrate and jam during operation;

[0008] (4) The injection molding process makes the injection molded parts unqualified, which leads to uneven force on the roller assembly or squeezing, resulting in abnormal noise, jamming, or other problems. Summary of the invention

[0009] The main purpose of the present invention is to provide a volute assembly, a fan device and an air conditioner to solve the problem that the volute tongue and its motion mechanism of the air conditioner in the prior art are prone to shaking and jamming during movement.

[0010] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a volute assembly, comprising: a volute component, on which a slide groove is arranged; a volute tongue component, which comprises: a volute tongue body, which is located in the volute component and is slidably arranged along the slide groove; a slider, which is arranged on the volute tongue body, and the slider is arranged corresponding to the slide groove for being inserted into the slide groove; a clearance fit between the side wall of the slider and the side wall of the slide groove opposite thereto, and a clearance fit between the end face of the slider away from the volute tongue body and the bottom face of the slide groove, so as to support the volute tongue component.

[0011] Furthermore, there are multiple sliders, and the multiple sliders are arranged at intervals along the extension direction of the slide groove.

[0012] Furthermore, a gap L between a side wall of the slide groove and a side wall of the slide block opposite thereto is 0.1 mm to 0.3 mm.

[0013] Furthermore, a gap H between an end surface of the sliding block away from the tongue body and a bottom surface of the sliding groove is 0.1 mm to 0.3 mm.

[0014] Furthermore, the volute tongue component also includes a support portion arranged corresponding to the slide groove, the support portion is arranged on the volute tongue body for being inserted into the slide groove; the support portion and the sliding block are arranged at intervals along the extension direction of the slide groove; the support portion abuts against the inner wall of the slide groove.

[0015] Furthermore, the support portion includes a support column and an elastic member sleeved on the support column, the outer peripheral surface of the elastic member is cylindrical, and the support portion abuts against the side wall of the slide groove through the elastic member.

[0016] Furthermore, the elastic member and the slide groove are interference fit.

[0017] Furthermore, the interference L1 between the outer peripheral surface of the elastic member matching with the slide groove and a side wall of the corresponding slide groove is 0.1 mm to 0.3 mm.

[0018] Furthermore, ribs are arranged on the snail tongue body, the ribs protrude from the axial end surface of the snail tongue body, the ribs are arranged corresponding to the slide grooves, the extension direction of the ribs is parallel to the extension direction of the slide grooves, and the width of the ribs is smaller than the width of the corresponding slide grooves.

[0019] Furthermore, the slider is arranged on the rib; and / or the snail tongue component also includes a support portion abutting against the side wall of the slide groove, the support portion is arranged on the axial end face of the snail tongue body for insertion into the slide groove; a makeshift space for avoiding the support portion is provided on the rib.

[0020] Furthermore, a first roller for contacting the volute component is provided on the volute tongue body, and the rotation axis of the first roller is parallel to the rotation axis of the volute tongue body; an avoidance groove for avoiding the first roller is provided on the rib; and / or a second roller for contacting the volute component is provided on the volute tongue body, and the rotation axis of the second roller is perpendicular to the axis of the volute tongue body; a mounting portion with a mounting cavity is provided on the rib, and the second roller is rotatably mounted on the mounting portion, and part of the wheel body of the second roller is located in the mounting cavity.

[0021] Furthermore, the volute tongue body and the slider are integrally formed, and the volute tongue body includes a volute tongue main board and connecting plates arranged at both ends of the volute tongue main board, and the two connecting plates are both provided with sliders.

[0022] Furthermore, the volute component includes a first volute portion and a second volute portion that are arranged opposite to each other, and both the first volute portion and the second volute portion are provided with slide grooves, and the end of the volute tongue body opposite to the first volute portion and the end opposite to the second volute portion are provided with sliding blocks that cooperate with the corresponding slide grooves.

[0023] According to a second aspect of the present invention, a fan device is provided, comprising a volute assembly, wherein the volute assembly is the volute assembly described above.

[0024] According to a third aspect of the present invention, there is provided an air conditioner, comprising a fan device, wherein the fan device is the above-mentioned fan device.

[0025] By applying the technical solution of the present invention, the volute assembly of the present invention is provided with a slide groove on the volute component, and a slider is provided on the volute tongue body of the volute tongue component, and the slider is provided corresponding to the slide groove so as to be inserted into the slide groove; wherein, the slider and the slide groove are clearance matched, the side wall of the slider and the side wall of the slide groove opposite thereto are clearance matched, and the end face of the slider away from the volute tongue body and the groove bottom face of the slide groove are clearance matched, so as to support the volute tongue component in two directions along the width direction of the slide groove perpendicular to the extension direction of the slide groove and along the axial direction of the volute tongue component. In this way, not only the number of roller assemblies arranged on the volute tongue component can be reduced, but also the support and limit of the volute tongue component can be increased, so as to prevent the roller assembly from shaking, making abnormal sounds or getting stuck due to deformation or extrusion, thereby ensuring the stability of the operation of the volute tongue component, reducing the production quality abnormality of the volute assembly, reducing the production cost, and solving the problem that the volute tongue and its motion mechanism of the air conditioner in the prior art are prone to shaking and getting stuck during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1A schematic structural diagram of an embodiment of a volute tongue component of a volute assembly according to the present invention is shown;

[0028] Figure 2 Shows Figure 1 The schematic diagram of the assembly of the volute tongue component of the volute assembly and the motor, etc. is shown;

[0029] Figure 3 Shows Figure 2 A partial cross-sectional view at AA after the volute tongue component is installed on the volute component;

[0030] Figure 4 Shows Figure 2 A partial cross-sectional view at BB after the volute tongue component is installed on the volute component;

[0031] Figure 5 Shows the application Figure 1 A schematic diagram of the structure of the volute component of the volute tongue component of the volute assembly in one direction;

[0032] Figure 6 Shows Figure 5 A schematic diagram of the structure of the volute component shown in another direction;

[0033] Figure 7 It shows a schematic structural diagram of an embodiment of a fan device according to the present invention when it is in a downward air outlet state;

[0034] Figure 8 Shows Figure 7 The structural schematic diagram of the embodiment of the fan device shown is in the upper air outlet state; and

[0035] Fig. 9 Shows Figure 7 An exploded view of the fan unit is shown.

[0036] The above drawings include the following reference numerals:

[0037] 1. Volute tongue component; 11. Volute tongue body; 111. First roller; 112. Second roller; 12. Sliding block; 13. Support part; 131. Support column; 132. Elastic member; 14. Rib; 140. Make way space; 141. Avoidance groove; 142. Mounting part; 15. Gear ring; 2. Volute component; 20. Slide groove; 21. First volute part; 22. Second volute part; 3. Fan blade; 4. Motor; 5. Driving wheel; 6. Double gear. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] like Figures 1 to 9 As shown, the present invention provides a volute assembly, comprising: a volute component 2, on which a slide groove 20 is arranged; a volute tongue component 1, which comprises: a volute tongue body 11, which is located in the volute component 2 and is slidably arranged along the slide groove 20; a slider 12, which is arranged on the volute tongue body 11, and the slider 12 is arranged corresponding to the slide groove 20 for being inserted into the slide groove 20; a clearance fit between the side wall of the slider 12 and the side wall of the slide groove 20 opposite thereto, and a clearance fit between the end face of the slider 12 away from the volute tongue body 11 and the bottom face of the slide groove 20, so as to support the volute tongue component 1.

[0040] The volute assembly of the present invention is provided with a slide groove 20 on the volute component 2, and a slider 12 is provided on the volute tongue body 11 of the volute tongue component 1. The slider 12 is provided corresponding to the slide groove 20, so as to be inserted into the slide groove 20; wherein, the slider 12 and the slide groove 20 are clearance matched, the side wall of the slider 12 and the side wall of the volute tongue 20 opposite thereto are clearance matched, and the end surface of the slider 12 away from the volute tongue body 11 is clearance matched with the bottom surface of the groove of the slide groove 20, so as to support the volute tongue component 1 in two directions, i.e., the width direction of the slide groove perpendicular to the extension direction of the slide groove and the axial direction of the volute tongue component 1. In this way, not only the number of roller assemblies arranged on the volute tongue component 1 can be reduced, but also the support and limit of the volute tongue component 1 can be increased, so as to prevent the roller assembly from shaking, making abnormal sounds or getting stuck due to deformation or extrusion, thereby ensuring the operation stability of the volute tongue component 1, reducing the production quality abnormality of the volute assembly, reducing the production cost, and solving the problem that the volute tongue and its motion mechanism of the air conditioner in the prior art are prone to shaking and getting stuck during the movement.

[0041] Preferably, there are multiple sliders 12, and the multiple sliders 12 are arranged at intervals along the extension direction of the slide slot 20. In this way, the snail tongue component 1 can be supported and limited from multiple positions along the movement direction of the snail tongue component 1.

[0042] Preferably, the gap L between the side wall of the slide groove 20 and the side wall of the slider 12 opposite thereto is 0.1 mm to 0.3 mm. More preferably, L is 0.2 mm.

[0043] Preferably, the gap H between the end surface of the slider 12 away from the tongue body 11 and the bottom surface of the slide groove 20 is 0.1 mm to 0.3 mm. More preferably, H is 0.2 mm.

[0044] The clearance fit between the slide groove 20 and the slider 12 can not only ensure smooth relative movement between the volute tongue component 1 and the volute case component 2, but also increase support for the volute tongue component 1 along the width and height directions of the slide groove 20 to prevent it from deforming and sagging, and reduce the number of roller assemblies arranged on the volute tongue component 1.

[0045] like Figure 1 As shown, the volute tongue component 1 also includes a support portion 13 corresponding to the slide groove 20, the support portion 13 is arranged on the volute tongue body 11, and is used to be inserted into the slide groove 20; the support portion 13 and the slider 12 are arranged at intervals along the extension direction of the slide groove 20; the support portion 13 abuts against the inner wall of the slide groove 20. In this way, the support portion 13 can support the movement of the volute tongue component 1 and play a role in local limiting support for the shaking and deformation of the volute tongue component 1.

[0046] Preferably, there are a plurality of support portions 13, and the plurality of support portions 13 are arranged at intervals along the extension direction of the slide slot 20. In this way, the snail tongue component 1 can be supported and limited from a plurality of positions along the movement direction of the snail tongue component 1.

[0047] like Figure 4 As shown, the support portion 13 includes a support column 131 and an elastic member 132 sleeved on the support column 131 . The outer peripheral surface of the elastic member 132 is cylindrical. The support portion 13 abuts against the side wall of the slide groove 20 through the elastic member 132 .

[0048] The present invention adds a support portion 13 having an elastic member 132 to the volute tongue component 1, thereby eliminating the problems of operation jitter, jamming or FC function (filter cleaning prompt function) failure caused by injection molding deformation of parts or motor vacancy during operation of the volute tongue component 1.

[0049] When the slider 12 and the support part 13 are simultaneously provided on the volute tongue component 1, not only the number of roller assemblies arranged can be reduced, but also the problem of the roller assemblies shaking, making abnormal noises or getting stuck due to deformation or squeezing of injection molded parts can be solved, thereby better supporting the volute tongue component 1.

[0050] Preferably, the elastic member 132 and the slide groove 20 are interference fit.

[0051] Specifically, the elastic member 132 is made of rubber material and has a circular ring structure. The inner side is mounted on the support column 131 of the volute tongue component 1, and the outer side is in contact with the slide groove 20 of the volute case component 2, thereby generating a blocking torque on the relative movement between the volute tongue component 1 and the volute case component 2, so as to achieve the purpose of supporting the volute tongue component 1 and solving the problem of shaking, abnormal noise or jamming of the roller assembly due to deformation or extrusion of the injection molded parts.

[0052] The elastic member 132 includes a first shaft segment and a second shaft segment. The second shaft segment is located at an end of the first shaft segment away from the volute tongue body 11 . The diameter of the first shaft segment is smaller than the width of the slide slot 20 , and the diameter of the second shaft segment is larger than the width of the slide slot 20 .

[0053] Preferably, the elastic member 132 is interference-fitted with the support column 131. The elastic member 132 is interference-fitted on the support column 131 to fix the elastic member 132 relative to the support column 131 so that the elastic member 132 moves along the slide groove 20 together with the volute tongue component 1.

[0054] Preferably, the interference L1 between the outer peripheral surface of the elastic member 132 matched with the slide groove 20 and a corresponding side wall of the slide groove 20 is 0.1 mm to 0.3 mm. More preferably, L1 is 0.2 mm.

[0055] The interference fit between the elastic member 132 and the slide groove 20 can produce a slight frictional obstruction to the movement of the volute tongue component 1, but because the interference is small and the elastic member 132 has elastic deformation, the friction effect it produces is small. The elastic member 132 mainly plays the role of local limiting support for the volute tongue component 1, preventing the volute tongue component 1 from colliding with the volute component 2 due to shaking during movement.

[0056] Preferably, the interference L2 between the minimum diameter of the inner hole of the elastic member 132 and the outer peripheral surface of the support column 131 is 0.1 mm to 0.3 mm. Further preferably, L2 is 0.2 mm. In this way, the fixed connection between the elastic member 132 and the support column 131 can be ensured, so that the elastic member 132 moves with the volute tongue component and better supports the volute tongue component.

[0057] Preferably, a rib 14 is provided on the volute tongue body 11, the rib 14 protrudes from the axial end surface of the volute tongue body 11, the rib 14 is provided corresponding to the slide groove 20, the extension direction of the rib 14 is parallel to the extension direction of the slide groove 20, and the width of the rib 14 is smaller than the width of the corresponding slide groove 20. Part of the rib 14 is used to be inserted into the slide groove 20 to reduce the leakage of the airflow at the gap between the volute tongue component and the volute component 2.

[0058] Specifically, the width of the rib 14 refers to the dimension of the rib 14 perpendicular to the extending direction thereof, and the width of the slide groove 20 refers to the dimension of the slide groove 20 perpendicular to the extending direction thereof.

[0059] Specifically, the slider 12 is arranged on the rib 14; and / or the volute tongue component 1 also includes a support portion 13 abutting against the side wall of the slide groove 20, and the support portion 13 is arranged on the axial end face of the volute tongue body 11 for being inserted into the slide groove 20; a clearance space 140 for avoiding the support portion 13 is provided on the rib 14.

[0060] Preferably, a first roller 111 for contacting the volute component 2 is provided on the volute tongue body 11, and the rotation axis of the first roller 111 is parallel to the rotation axis of the volute tongue body 11; an avoidance groove 141 for avoiding the first roller 111 is provided on the rib 14; and / or a second roller 112 for contacting the volute component 2 is provided on the volute tongue body 11, and the rotation axis of the second roller 112 is perpendicular to the axis of the volute tongue body 11; a mounting portion 142 with a mounting cavity is provided on the rib 14, and the second roller 112 is rotatably mounted on the mounting portion 142, and a part of the wheel body of the second roller 112 is located in the mounting cavity.

[0061] Preferably, there are a plurality of first rollers 111, which are arranged at intervals along the extension direction of the slide slot 20; there are a plurality of second rollers 112, which are arranged at intervals along the extension direction of the slide slot 20. Accordingly, the avoidance grooves 141 and the mounting portions 142 are arranged at intervals along the ribs 14.

[0062] Preferably, the distance between the maximum outer diameter of the outer circumference of the first roller 111 and the side wall of the slide groove 20 is 0.1 mm to 0.3 mm; the distance between the maximum outer diameter of the outer circumference of the second roller 112 and the bottom surface of the slide groove 20 is 0.1 mm to 0.3 mm.

[0063] Specifically, the volute tongue component 1 and the volute case component 2 rotate relative to each other through the first roller 111 and the second roller 112, so that while a certain movement gap is ensured between the volute tongue component 1 and the volute case component 2, the volute tongue component 1 will not be shifted during movement due to the existence of the movement gap. The axes of the first roller 111 and the second roller 112 are perpendicular to each other, which plays a role in limiting and guiding the movement of the volute tongue component 1, thereby ensuring the relative position between the volute tongue component 1 and the volute case component 2.

[0064] However, after being assembled, there is still a certain gap between the first roller 111 and the second roller 112 and the slide groove 20 of the volute component 2. When the volute tongue component 1 moves, it will shake due to the existence of the gap, and the first roller 111 and the slide groove 20 of the volute component 2 will produce abnormal noise due to collision. The elastic member 132 of the support part 13 of the present invention is used to support the volute tongue component 1 and buffer the shaking of the volute tongue component 1 to reduce the shaking amplitude of the volute tongue component 1, thereby avoiding the collision between the first roller 111 and the second roller 112 and the slide groove 20 and the generation of abnormal noise due to collision.

[0065] Preferably, the volute tongue body 11 and the slider 12 are integrally formed, and the volute tongue body 11 includes a volute tongue main board and connecting plates arranged at both ends of the volute tongue main board, and the sliders 12 are arranged on both connecting plates.

[0066] Preferably, support portions 13 are provided on both connecting plates.

[0067] The two connecting plates are respectively located at two axial ends of the volute tongue main board, and the two connecting plates are parallel to each other. The volute tongue main board is an arc-shaped plate, and the slider 12 and the support portion 13 are protruded from the corresponding connecting plates.

[0068] The two connecting plates are respectively located at two axial ends of the volute tongue main board, and the two connecting plates are parallel to each other. The volute tongue main board is an arc-shaped plate, and the supporting portion 13 protrudes from the corresponding connecting plate.

[0069] like Figure 5 , Figure 6 and Fig. 9 As shown, the volute component 2 includes a first volute portion 21 and a second volute portion 22 that are arranged opposite to each other, and a slide groove 20 is provided on the first volute portion 21 and the second volute portion 22. The end of the volute tongue body 11 opposite to the first volute portion 21 and the end opposite to the second volute portion 22 are both provided with a slider 12 that cooperates with the corresponding slide groove 20.

[0070] Preferably, the end of the volute tongue body 11 opposite to the first volute portion 21 and the end opposite to the second volute portion 22 are both provided with a support portion 13 matched with the corresponding slide groove 20 .

[0071] Specifically, the volute component 2 includes a first volute portion 21 and a second volute portion 22 which are arranged opposite to each other along the axial direction of the volute tongue component 1. The first volute portion 21 and the second volute portion 22 are respectively located at the axial ends of the volute tongue component 1. The first volute portion 21 and the second volute portion 22 of the volute component 2 are positioned by a pin and fixed by screws. The fan device realizes upward and downward air discharge through the rotation of the volute tongue component 1.

[0072] Specifically, a slide groove 20 is provided on the first volute portion 21 and the second volute portion 22. The slide groove 20 is used for the first roller 111 and the second roller 112 to roll, and is used to cooperate with the slider 12 and the support portion 13 of the volute tongue component 1 to guide, limit, buffer, reduce shock and reduce noise for the movement of the volute tongue component 1.

[0073] The present invention provides a fan device, comprising a volute assembly, wherein the volute assembly is the volute assembly mentioned above.

[0074] like Figures 7 to 9As shown, the fan device of the present invention is mainly used in a vertical air conditioner in which the volute tongue component 1 needs to move during operation. The volute tongue component 1 with a wind shielding function is rotatably arranged in the fan device, and the volute tongue component 1 is driven to rotate by a motor and a transmission assembly arranged on the outside of the volute tongue component 1. The transmission assembly includes a driving wheel 5 arranged on the output shaft of the motor 4, a part of the ring gear 15 arranged on the volute tongue component 1, and a double gear 6 respectively meshed with the driving wheel 5 and the ring gear 15 to drive the volute tongue component 1 to move, thereby respectively realizing the upward air outlet and downward air outlet functions of the fan device.

[0075] like Figure 7 As shown, the position of the volute tongue component 1 can block the upward movement of the airflow to achieve the downward air outlet function of the fan device. Figure 8 As shown, Figure 7 The volute tongue component 1 is rotated 180° to form a vortex fan, which can block the airflow from moving downward to achieve the upward air outlet function of the fan device.

[0076] Specifically, the fan device further includes a fan blade 3 , which is located inside the volute tongue component 1 so as to provide airflow to the volute tongue component 1 through the rotation of the fan blade 3 .

[0077] The present invention also provides an air conditioner, comprising a fan device, wherein the fan device is the above-mentioned fan device.

[0078] Specifically, the air conditioner of the present invention is a vertical air conditioner.

[0079] The volute assembly of the present invention supports and limits the volute tongue component 1 by arranging a slider 12 and a support portion 13 on the volute tongue component 1 that cooperate with the slide groove 20 of the volute component 2, thereby preventing the roller assembly from shaking, making abnormal noises or getting stuck due to deformation or extrusion, thereby ensuring the stability of the operation of the volute tongue component 1, reducing the production quality abnormalities of the volute assembly, and eliminating the problems of operation shaking, jamming or FC function failure caused by injection molding deformation of parts or motor vacancy. In addition, the number of roller assemblies arranged on the volute tongue component 1 can be reduced, reducing its production cost, and solving the problem that the volute tongue and its motion mechanism of the air conditioner in the prior art are prone to shaking and jamming during movement.

[0080] The assembly sequence of the fan device of the present invention is as follows:

[0081] First, the elastic member 132 and the first roller 111 and the second roller 112 are pre-installed to the axial ends of the volute tongue component 1; then, the volute tongue component 1 is assembled between the first volute portion 21 and the second volute portion 22, and the motor 4 with the driving wheel 5 on the output shaft is installed on the first volute portion 21 through fasteners, and the rotating shaft with the double gear 6 is installed on the first volute portion 21, and the large gear of the double gear 6 is meshed with the driving wheel 5 as a driven wheel, and the small gear is meshed with the ring gear 15 of the volute tongue component 1; finally, the second volute portion 22 is connected to the first volute portion 21.

[0082] When the volute tongue component 1 needs to start running, the motor 4 receives the instruction of the controller and starts to drive the large gear of the double gear 6 to rotate through the driving wheel 5, and the small gear of the double gear 6 drives the volute tongue component 1 to rotate.

[0083] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0084] (1) The problem of excessive meshing clearance between the injection molded gear and the rack due to improper installation of the gear and rack is solved, which may lead to quality abnormalities such as jitter, jamming, freezing or FC function failure.

[0085] (2) Solved the problem that the gear deformation and collapse would cause the meshing clearance between the injection molded gear and the rack to be too large, thus causing quality abnormalities such as jitter, jamming, freezing or FC function failure;

[0086] (3) The problem of "motor virtual position" caused by the inherent characteristics and defects of the motor, that is, the motor output shaft itself will shake slightly, causing the volute tongue and its motion mechanism to shake and jam during operation, is solved;

[0087] (4) Solved the problem that the injection molding process made the injection molded parts unqualified, resulting in uneven force on the roller assembly or being squeezed, causing abnormal noise or jamming;

[0088] (5) The number of the first roller 111 and the second roller 112 used is reduced, thereby improving production efficiency and reducing production costs.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A volute assembly, characterized in that: include: A volute component (2), wherein a slide groove (20) is provided on the volute component (2); A volute tongue component (1), the volute tongue component (1) comprising: A volute tongue body (11), the volute tongue body (11) being located in the volute component (2) and being slidably arranged along the slide groove (20); A slider (12), the slider (12) being arranged on the volute tongue body (11), the slider (12) being arranged corresponding to the slide groove (20) so as to be inserted into the slide groove (20); a clearance fit is formed between the side wall of the slider (12) and the side wall of the slide groove (20) opposite thereto, and a clearance fit is formed between the end surface of the slider (12) away from the volute tongue body (11) and the bottom surface of the slide groove (20) so as to support the volute tongue component (1); The volute tongue body (11) is provided with a rib (14), the rib (14) protrudes from the axial end surface of the volute tongue body (11) and is arranged corresponding to the slide groove (20), the extension direction of the rib (14) is parallel to the extension direction of the slide groove (20), the width of the rib (14) is smaller than the width of the corresponding slide groove (20); part of the rib (14) is used to be inserted into the slide groove (20); The sliding block (12) is arranged on the rib (14).

2. The volute assembly according to claim 1, characterized in that: There are a plurality of sliders (12), and the plurality of sliders (12) are arranged at intervals along the extension direction of the slide groove (20).

3. The volute assembly according to claim 1, characterized in that: A gap L between the side wall of the slide groove (20) and the side wall of the slider (12) opposite thereto is 0.1 mm to 0.3 mm.

4. The volute assembly according to claim 1, characterized in that: A gap H between the end surface of the sliding block (12) away from the volute tongue body (11) and the bottom surface of the slide groove (20) is 0.1 mm to 0.3 mm.

5. The volute assembly according to claim 1, characterized in that: The volute tongue component (1) further comprises a support portion (13) arranged corresponding to the slide groove (20); the support portion (13) is arranged on the volute tongue body (11) for being inserted into the slide groove (20); the support portion (13) and the slider (12) are arranged at intervals along the extension direction of the slide groove (20); and the support portion (13) abuts against the inner wall of the slide groove (20).

6. The volute assembly according to claim 5, characterized in that: The support portion (13) comprises a support column (131) and an elastic member (132) sleeved on the support column (131); the outer peripheral surface of the elastic member (132) is cylindrical; the support portion (13) abuts against the side wall of the slide groove (20) through the elastic member (132).

7. The volute assembly according to claim 6, characterized in that: The elastic member (132) and the slide groove (20) are interference fit.

8. The volute assembly according to claim 6, characterized in that: The interference L1 between the outer peripheral surface of the elastic member (132) matching the slide groove (20) and a corresponding side wall of the slide groove (20) is 0.1 mm to 0.3 mm.

9. The volute assembly according to claim 1, characterized in that: The volute tongue component (1) further comprises a support portion (13) abutting against a side wall of the slide groove (20); the support portion (13) is arranged on an axial end surface of the volute tongue body (11) for being inserted into the slide groove (20); and a clearance space (140) for avoiding the support portion (13) is arranged on the rib (14).

10. The volute assembly according to claim 1, characterized in that: The volute tongue body (11) is provided with a first roller (111) for contacting the volute case component (2), and the rotation axis of the first roller (111) is parallel to the rotation axis of the volute tongue body (11); the rib (14) is provided with an avoidance groove (141) for avoiding the first roller (111); and / or The volute tongue body (11) is provided with a second roller (112) for contacting the volute case component (2), and the rotation axis of the second roller (112) is perpendicular to the axis of the volute tongue body (11); the rib (14) is provided with a mounting portion (142) having a mounting cavity, and the second roller (112) is rotatably mounted on the mounting portion (142), and a part of the wheel body of the second roller (112) is located in the mounting cavity.

11. The volute assembly according to claim 1, characterized in that: The volute tongue body (11) and the slider (12) are integrally formed, and the volute tongue body (11) comprises a volute tongue main board and connecting plates arranged at two ends of the volute tongue main board, and the slider (12) is arranged on both connecting plates.

12. The volute assembly according to claim 1, characterized in that: The volute component (2) comprises a first volute portion (21) and a second volute portion (22) which are arranged opposite to each other, the first volute portion (21) and the second volute portion (22) are both provided with the slide groove (20), and the end of the volute tongue body (11) opposite to the first volute portion (21) and the end opposite to the second volute portion (22) are both provided with the sliding block (12) which cooperates with the corresponding slide groove (20).

13. A fan device, comprising a volute assembly, characterized in that: The volute assembly is the volute assembly according to any one of claims 1 to 12.

14. An air conditioner, comprising a fan device, characterized in that: The fan device is the fan device according to claim 13.

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