CN220816069U - Fixing structure for blower of automobile air conditioner box - Google Patents
Fixing structure for blower of automobile air conditioner box Download PDFInfo
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- CN220816069U CN220816069U CN202322797137.1U CN202322797137U CN220816069U CN 220816069 U CN220816069 U CN 220816069U CN 202322797137 U CN202322797137 U CN 202322797137U CN 220816069 U CN220816069 U CN 220816069U
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- 238000007789 sealing Methods 0.000 claims description 55
- 239000006260 foam Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 abstract description 25
- 238000010079 rubber tapping Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a fixing structure of an air blower of an automobile air conditioner box, wherein a plurality of inner fixing parts are arranged on the inner wall of a mounting hole, a plurality of outer fixing parts are arranged on the outer side of a mounting disc and correspond to the inner fixing parts one by one, and the inner fixing parts and the outer fixing parts are both strip-shaped in the circumferential direction and incline inwards in the same direction; when the fan is assembled, the mounting plate is placed in the mounting hole, the corresponding inner fixing part and the outer fixing part are rotationally matched and abutted tightly by rotating the mounting plate, so that the mounting plate cannot be easily rotated or outwards separated, the abutting part at the upper edge of the mounting plate abuts against the air outlet volute, the axial and circumferential movement of the mounting plate are limited, and the fan is fixed on the mounting plate; the installation fixed point of mounting disc and air-out spiral case is shorter with the arm of force of air-blower rotation center pin, and the air-blower operation and vehicle are when jolting, and the fixed point atress of installation is less, and the reliability of installation is fixed is better, can effectively reduce the air-blower vibration, improves the comfort level of driving.
Description
Technical Field
The utility model belongs to the technical field of vehicle ventilation equipment, and particularly relates to a fixing structure of an air blower of an automobile air conditioner box.
Background
The air outlet volute of the automobile air conditioner box is internally provided with a blower which is a power source for providing air flow, and the maximum rotating speed of the blower can reach 3000rpm, so that firm and reliable fixing effect is required to be provided for the blower, and the blower can be ensured to run stably without severe vibration.
The current fixing structure of the air blower of the automobile air conditioner box is shown in fig. 1 and 2, the edge of the mounting plate 1 extends out of three connecting lugs 2 along the radial direction, a mounting column 5 corresponding to the three connecting lugs is arranged outside the mounting hole 4 on the air outlet volute 3, the three connecting lugs are respectively abutted to the three mounting columns and fixedly connected through self-tapping screws 6, the air blower 7 is fixed in the mounting plate and positioned above the air outlet volute 3, and the output end of the air blower 7 extends into the air outlet volute 3 through the mounting hole 4 and is connected with an impeller; in the installation fixing structure, the connection point of the installation disc and the air outlet volute is positioned on the connection support lug, the force arm of the connection support lug with the rotation central shaft of the air blower is relatively long, the air blower runs, the force of the connection support lug is large when a vehicle jolts, after the connection support lug is used for a long time and the rigidity of the connection support lug is weakened, the vibration of the air blower is easily increased, the aging and the damage of an automobile air conditioner box can be accelerated, and when the automobile air conditioner box starts large air quantity, the vibration of the air blower can be transmitted to the steering wheel through the pipe beam, so that the driving comfort is reduced; in addition, the efficiency of the production assembly is also reduced by the self-tapping screw installation.
Therefore, there is a need to design a blower fixing structure for an air conditioner box of a vehicle, which is more reliable in installation and fixation and convenient to assemble.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to provide a fixing structure of an air blower of an automobile air conditioner box, solve the technical problem that the reliability of the existing fixing structure of the air blower of the automobile air conditioner box is poor, and achieve the effect of improving the connection stability and the assembly efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The fixing structure of the blower of the automobile air conditioner box comprises an air outlet volute, wherein the air outlet volute is provided with a mounting hole communicated with the inside of the air outlet volute, the inner wall of the mounting hole is convexly provided with a plurality of inner fixing parts, and the inner fixing parts are circumferentially and uniformly distributed; the mounting hole is internally and coaxially provided with a mounting disc, the edge of the mounting disc, which is far away from the air outlet volute, is convexly provided with a circle of abutting part with the diameter larger than that of the mounting hole, and the abutting part abuts against the orifice of the mounting hole; the side surface of the mounting disc is convexly provided with a plurality of external fixing parts which are circumferentially uniformly distributed and are matched with the plurality of internal fixing parts one by one, the internal fixing parts and the external fixing parts are both strip-shaped in the circumferential direction, the same end of each external fixing part inclines towards the inside of the air outlet volute so as to screw and buckle each other, one surface of each external fixing part far away from the inside of the air outlet volute is abutted with one surface of each internal fixing part towards the inside of the air outlet volute, and the circumferential length of each external fixing part is smaller than the circumferential distance between the adjacent internal fixing parts so as to unscrew and trip; the blower is fixedly connected with the mounting plate and is coaxial with the mounting hole.
Further, one end of the inner fixing portion and the outer fixing portion inclined towards the inside of the air outlet volute is provided with a lower limiting portion in an extending mode, the other end of the inner fixing portion and the outer fixing portion extend towards the outside of the air outlet volute to form an upper limiting portion, the upper limiting portion and the lower limiting portion extend along the axial direction of the mounting hole, and a distance is reserved between the inner fixing portion and two lower limiting portions of the corresponding outer fixing portion and between the two upper limiting portions.
Further, the number of the inner fixing portions and the outer fixing portions is five, and the inclination angles of the inner fixing portions and the outer fixing portions are 9 degrees.
Further, a circular arc-shaped guide main board concentric with the mounting hole is formed on the air outlet volute by protruding outwards from the mounting hole, a positioning notch and a limiting notch are formed at the free end of the guide main board, the limiting notch is connected with the positioning notch in the circumferential direction, and the depth of the limiting notch is larger than that of the positioning notch; the edge of one side of the mounting disc, which is far away from the air outlet volute, is also radially protruded to form a guide auxiliary plate, and the guide auxiliary plate is positioned in the limit notch to realize circumferential limit of the screwing state; when unscrewing, the guide auxiliary plate is elastically deformed and positioned in the positioning notch.
Further, a positioning column is formed on the air outlet volute by protruding outwards from the mounting hole, and a threaded hole is formed on the positioning column; the edge of one side of the mounting plate far away from the air outlet volute is also provided with an auxiliary positioning support lug in a protruding mode along the radial direction, the auxiliary positioning support lug is abutted to the positioning column, a through hole corresponding to the threaded hole is formed in the auxiliary positioning support lug, and a screw is arranged in the through hole and is in threaded connection with the threaded hole.
Further, a section of guide rib plate connected with the positioning column is further formed on the air outlet volute in a protruding mode, the guide rib plate and the positioning column are sequentially arranged along the screwing direction, and the protruding height of the guide rib plate gradually increases along the screwing direction until the protruding height of the guide rib plate is equal to the height of the positioning column.
Further, a sealing surface which is obliquely arranged outside the mounting hole is arranged on the air outlet volute, the oblique direction of the sealing surface is opposite to that of the inner fixing part, and an air return opening which is communicated with an air outlet channel of the air outlet volute is formed in the sealing surface; the mounting plate is provided with an air return channel communicated with an air blower fixed in the mounting plate, the outer end of the air return channel extends outwards along the radial direction of the mounting plate, the outer end face of the air return channel is parallel to the sealing face and is opposite to the sealing face, the air return channel is communicated with an air return opening, a foam sealing ring is compressed between the end face of the air return channel and the sealing face, and the air return opening is positioned in the foam sealing ring.
Further, a circle of positioning ribs are formed on the end face of the return air channel in a protruding mode, the foam sealing ring is fixedly connected with the positioning ribs in an adhering mode and sleeved outside the positioning ribs, and the thickness of the foam sealing ring is larger than the protruding height of the positioning ribs.
Further, the inclination angle of the sealing surface and the end surface of the return air channel is 20 degrees.
Compared with the prior art, the utility model has the following beneficial effects:
According to the fixing structure of the air blower of the automobile air conditioner box, when the fixing structure is assembled, the mounting plate is placed in the mounting hole, the corresponding inner fixing part and the outer fixing part are rotationally matched and abutted against each other by rotating the mounting plate, so that the mounting plate cannot be easily rotated and cannot be outwards separated, meanwhile, the abutting part of the upper edge of the mounting plate is abutted against the air outlet volute, the mounting plate cannot completely fall into the air outlet volute, the axial and circumferential movement of the mounting plate are limited, and the air blower is fixed in the mounting plate, so that the mounting and fixing of the air blower and the air outlet volute are completed; the mounting and fixing points (namely an inner fixing part and an outer fixing part) of the mounting plate and the air outlet volute are shorter than the arm of force of the rotation central shaft of the blower, so that the force of the mounting and fixing points is smaller when the blower runs and the vehicle jolts, the reliability of mounting and fixing is better, the vibration of the blower can be effectively reduced, and the driving comfort is improved; in addition, the inner fixing part and the outer fixing part are in rotary fit, so that the assembly efficiency is higher compared with that of the assembly and the fixation by beating a plurality of self-tapping screws.
Drawings
FIG. 1 is a schematic view of a blower mounting structure for a prior art automotive air conditioning case;
FIG. 2 is a schematic illustration of the stealth blower and mounting plate of FIG. 1;
FIG. 3 is a schematic view of a blower attachment structure for an air conditioning unit of an automobile according to an embodiment;
FIG. 4 is a schematic illustration of the stealth blower and mounting plate of FIG. 3;
FIG. 5 is a schematic view of a blower and mounting plate according to an embodiment;
The air-conditioning device comprises a mounting plate 1, a connecting lug 2, an air outlet volute 3, a mounting hole 4, a mounting column 5, a self-tapping screw 6, an air blower 7, an inner fixing part 8, an abutting part 9, an outer fixing part 10, a lower limiting part 11, an upper limiting part 12, a guiding main plate 13, a positioning notch 14, a limiting notch 15, a guiding auxiliary plate 16, a positioning column 17, a threaded hole 18, an auxiliary positioning lug 19, a guiding rib plate 21, an air outlet channel 22, an air return opening 23, an outer sealing part 24, an air return channel 25, a sealing surface 26, an impeller 27, a foam sealing ring 28 and a positioning rib 29.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples:
referring to fig. 3 to 5, a blower fixing structure of an air conditioner of an automobile comprises an air outlet volute 3, wherein an installation hole 4 communicated with the inside of the air outlet volute 3 is formed in the air outlet volute 3, a plurality of inner fixing parts 8 are formed on the inner wall of the installation hole 4 in a protruding mode, and the inner fixing parts 8 are uniformly distributed in the circumferential direction; the mounting hole 4 is internally and coaxially provided with a mounting disc 1, the edge of the mounting disc 1 far away from the air outlet volute 3 is convexly provided with a circle of abutting part 9 with the diameter larger than that of the mounting hole 4, and the abutting part 9 is abutted with the surface of the air outlet volute 3 where the mounting hole 4 is positioned; the side surface of the mounting disc 1 is convexly provided with a plurality of outer fixing parts 10, the plurality of outer fixing parts 10 are circumferentially uniformly distributed and are in one-to-one correspondence with the plurality of inner fixing parts 8, the inner fixing parts 8 and the outer fixing parts 10 are both in strip shapes in the circumferential direction, the same end of each outer fixing part inclines towards the inside of the air outlet volute 3 so as to screw and buckle each other, one surface of each outer fixing part 10 away from the inside of the air outlet volute 3 is abutted with one surface of each inner fixing part 8 close to the inside of the air outlet volute 3, and the circumferential length of each outer fixing part 10 is smaller than the circumferential distance between the adjacent inner fixing parts 8 so as to unscrew and trip; the blower 7 is fixed in the mounting plate 1.
The utility model relates to a blower fixing structure of an automobile air conditioner box, wherein a plurality of inner fixing parts 8 are arranged on the inner wall of a mounting hole 4, a plurality of outer fixing parts 10 are arranged on the surface of a mounting plate 1 opposite to the inner wall of the mounting hole 4, the plurality of outer fixing parts 10 are uniformly distributed in the circumferential direction and correspond to the plurality of inner fixing parts 8 one by one, and the inner fixing parts 8 and the outer fixing parts 10 are both in a strip shape in the circumferential direction and incline inwards in the same direction; when the installation plate 1 is assembled, the installation plate 1 is placed in the installation hole 4, the installation plate 1 is rotated to enable the corresponding inner fixing part 8 and the corresponding outer fixing part 10 to be screwed Deed of transfer and abutted against each other, so that the installation plate 1 cannot be easily rotated and cannot be outwards separated, meanwhile, the abutting part 9 at the upper edge of the installation plate 1 is abutted against the air outlet volute 3, the installation plate 1 cannot completely fall into the air outlet volute 3, the axial and circumferential movement of the installation plate 1 are limited, and the air blower 7 is fixed in the installation plate 1, so that the installation and fixation of the air blower 7 and the air outlet volute 3 are completed; the mounting and fixing points (namely the inner fixing part 8 and the outer fixing part 10) of the mounting plate 1 and the air outlet volute 3 and the force arm of the rotation central shaft of the air blower 7 are short, the air blower 7 runs, and when a vehicle jolts, the stress of the mounting and fixing points is small, the reliability of mounting and fixing is better, the vibration of the air blower 7 can be effectively reduced, and the driving comfort is improved; in addition, the inner fixing portion 8 and the outer fixing portion 10 are rotatably engaged with each other, so that the assembly efficiency is higher than that of the assembly by driving a plurality of tapping screws.
Referring to fig. 4 and 5, one end of the inner fixing portion 8 and the outer fixing portion 10 inclined toward the inside of the air outlet volute 3 extends toward the inside of the air outlet volute 3 to form a lower limiting portion 11, the other end extends toward the outside of the air outlet volute 3 to form an upper limiting portion 12, the upper limiting portion 12 and the lower limiting portion 11 extend along the axial direction of the mounting hole 4, and a space is reserved between the inner fixing portion 8 and two lower limiting portions 11 corresponding to the outer fixing portion 10 and between the two upper limiting portions 12.
In this way, when the mounting plate 1 rotates to the maximum amount, the lower limit portion 11 and the upper limit portion 12 of the inner fixing portion 8 and the outer fixing portion 10 are abutted with each other, so that the mounting plate 1 is prevented from sinking further toward the mounting hole 4 under the rotation fit of the inner fixing portion 8 and the outer fixing portion 10 due to excessive rotation, and the abutting portion 9 is deformed and even damaged under stress.
In this embodiment, the number of the inner fixing portions 8 and the outer fixing portions 10 is five, and the inclination angles of the inner fixing portions 8 and the outer fixing portions 10 are 9 °.
Referring to fig. 3 and 4, a circular arc-shaped guiding main board 13 concentric with the mounting hole 4 is formed on the air outlet volute 3 by protruding outside the mounting hole 4, a positioning notch 14 and a limiting notch 15 are sequentially formed at the free end of the guiding main board 13 along the inclined direction of the inner fixing part 8, the limiting notch 15 is communicated with the positioning notch 14 in a linking manner, and the depth of the limiting notch 15 is larger than that of the positioning notch 14; the edge of one surface of the mounting plate 1 far away from the air outlet volute 3 is also radially protruded to form a guide auxiliary plate 16, and the guide auxiliary plate 16 is positioned in the limit notch 15 to realize circumferential limit of the screwing state; when unscrewing, the guide auxiliary plate 16 is elastically deformed and is positioned in the positioning notch 14, and the size of the guide auxiliary plate 16 in the circumferential direction is smaller than that of the limit notch 15.
Thus, by arranging the positioning notch 14, the guiding auxiliary plate 16 is placed in the positioning notch 14 on the guiding main plate 13 during assembly, and the starting point of the rotation of the mounting plate 1 can be quickly found; after the rotation of the inner fixing part 8 and the outer fixing part 10 are matched by rotating the mounting plate 1, the guide auxiliary plate 16 falls into the limit notch 15 to limit the circumferential movement of the mounting plate 1, so that the rotation separation of the inner fixing part 8 and the outer fixing part 10 caused by the large rotation of the mounting plate 1 due to vibration is avoided, the mounting fixing of the mounting plate 1 is invalid, and the reliability of the mounting fixing is improved; the width of the limit notch 15 is slightly larger than the width of the guide auxiliary plate 16 so as to leave a certain adjustment allowance for the installation and fixation of the installation plate 1.
Referring to fig. 3 to 5, a positioning post 17 is formed on the air outlet volute 3 protruding outwards from the mounting hole 4, and a threaded hole 18 is formed on the positioning post 17; the edge of one side of the mounting plate 1 far away from the air outlet volute 3 is also radially protruded to form an auxiliary positioning support lug 19, the auxiliary positioning support lug 19 is abutted to the positioning column 17, a through hole corresponding to the threaded hole 18 is formed in the auxiliary positioning support lug 19, and a screw (not shown in the figure) is arranged in the through hole and is in threaded fit with the threaded hole 18.
Like this, accomplish the final location of mounting plate 1 installation fixed through the cooperation of auxiliary positioning journal stirrup 19 and reference column 17, and auxiliary positioning journal stirrup 19 passes through the screw to be connected with reference column 17, can one progress restriction mounting plate 1's circumferential motion, avoid mounting plate 1 to appear rotating because of the vibration, be favorable to improving the reliability of installation fixed.
Referring to fig. 3 and 4, a section of guiding rib plate 21 connected with the positioning column 17 is further formed on the air outlet volute 3 in a protruding manner, the guiding rib plate 21 and the positioning column 17 are sequentially arranged along the inclined direction of the fixing portion, and the protruding height of the guiding rib plate 21 increases progressively along the inclined direction of the fixing portion until the protruding height is equal to the height of the positioning column 17.
Thus, when the guide auxiliary plate 16 is positioned in the positioning notch 14 on the guide main plate 13, the auxiliary positioning lugs 19 are abutted against the guide rib plates 21 so as to enable the mounting plate 1 to be approximately coaxial with the mounting holes 4, and the mounting plate 1 is rotated to enable the inner fixing part 8 and the outer fixing part 10 to be in rotary fit; it will be appreciated that the guide sub-plate 16 and the auxiliary positioning lugs 19 should be circumferentially spaced apart to a greater extent in order to achieve the effect of maintaining the mounting plate 1 substantially coaxial with the mounting holes 4.
In order to reduce heat damage caused by high-speed rotation, as shown in fig. 1 and 2, in the current fixing structure of an air blower of an automobile air conditioner box, an air return opening 23 communicated with an air outlet channel 22 of the air outlet volute 3 is formed on the air outlet volute 3 outside a mounting hole 4, a circle of outer sealing part 24 is formed at the position of the air return opening 23 in a protruding manner, an air blower 7 is positioned above the air outlet volute 3, and the output end of the air blower 7 extends into the air outlet volute 3 through the mounting hole 4; the mounting plate 1 is provided with a return air channel 25 communicated with the blower 7, the outer end surface of the return air channel 25 is provided with a yielding groove (not shown in the figure) matched with the outer sealing part 24, a circle of inner sealing part (not shown in the figure) is formed in the outer end surface of the return air channel 25 and the yielding groove in a protruding way, the inner sealing part stretches into the return air inlet 23, and the sealing connection between the return air inlet 23 and the return air channel 25 is realized through the inner sealing part and the outer sealing part 24;
However, in the blower fixing structure of the automobile air conditioner box, the mounting plate 1 is fixed on the air outlet volute 3 through rotating installation, so that the blower fixing structure is not suitable for sealing connection in the mode; referring to fig. 3 to 5, a new sealing connection mode is correspondingly provided in the present utility model, which is specifically as follows: the air outlet volute 3 is provided with a sealing surface 26 which is obliquely arranged outside the mounting hole 4, the oblique direction of the sealing surface 26 is opposite to that of the inner fixing part 8, and the sealing surface 26 is provided with an air return opening 23 which is communicated with the air outlet channel 22 of the air outlet volute 3; the blower 7 is positioned above the air outlet volute 3, and the output end of the blower 7 extends into the air outlet volute 3 through the mounting hole 4 and is connected with an impeller 27; the installation plate 1 is provided with an air return channel 25 communicated with the internal blower 7, the outer end surface of the air return channel 25 is parallel to the sealing surface 26 and is opposite to the air return opening 23, a foam sealing ring 28 is compressed between the outer end surface of the air return channel 25 and the sealing surface 26, the air return opening 23 is positioned in the foam sealing ring 28, and the end surface of the foam sealing ring 28 is parallel to the sealing surface 26.
Thus, when assembling, the mounting plate 1 is placed in the mounting hole 4, the foam sealing ring 28 is parallel to and abutted against the sealing surface 26, and the foam sealing ring 28 is gradually compressed along with the rotation of the mounting plate 1, so that the sealing effect is achieved by tightly abutting against the sealing surface 26, in the embodiment, the inclination angle of the end surfaces of the sealing surface 26 and the return air channel 25 is 20 degrees, the foam sealing ring 28 adopts PU foam, the initial thickness of the PU foam is 5mm, and the compressed PU foam is smaller than 2mm.
In addition, a circle of positioning ribs 29 are formed on the end face of the return air channel 25 in a protruding mode, the foam sealing ring 28 is fixedly adhered to the outside of the positioning ribs 29, and the thickness of the foam sealing ring 28 is larger than the protruding height of the positioning ribs 29; in this way, the foam sealing ring 28 is sleeved outside the positioning rib 29, so that the position of the foam sealing ring 28 is prevented from being changed in the process of rotating and pressing, and sealing failure or blocking of the return air inlet 23 can be avoided.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the present utility model, and all such modifications and equivalents are included in the scope of the claims.
Claims (9)
1. An automobile air conditioner case air-blower fixed knot constructs, its characterized in that: the air outlet volute comprises an air outlet volute body, wherein the air outlet volute body is provided with a mounting hole communicated with the inside of the air outlet volute body, the inner wall of the mounting hole is convexly provided with a plurality of inner fixing parts, and the plurality of inner fixing parts are uniformly distributed in the circumferential direction; the mounting hole is internally and coaxially provided with a mounting disc, the edge of the mounting disc, which is far away from the air outlet volute, is convexly provided with a circle of abutting part with the diameter larger than that of the mounting hole, and the abutting part abuts against the orifice of the mounting hole; the side surface of the mounting disc is convexly provided with a plurality of external fixing parts which are circumferentially uniformly distributed and are matched with the plurality of internal fixing parts one by one, the internal fixing parts and the external fixing parts are both strip-shaped in the circumferential direction, the same end of each external fixing part inclines towards the inside of the air outlet volute so as to screw and buckle each other, one surface of each external fixing part far away from the inside of the air outlet volute is abutted with one surface of each internal fixing part towards the inside of the air outlet volute, and the circumferential length of each external fixing part is smaller than the circumferential distance between the adjacent internal fixing parts so as to unscrew and trip; the blower is fixedly connected with the mounting plate and is coaxial with the mounting hole.
2. The blower fixing structure for an air conditioner of a vehicle according to claim 1, wherein: the one end that internal fixation portion and external fixation portion incline to the inside of air-out spiral case is all formed with down spacing portion to the inside extension of air-out spiral case, and the other end all extends to the outside of air-out spiral case and is formed with upper limit portion, and upper limit portion and lower limit portion all extend along the axial of mounting hole, and the interval all has between the two lower limit portions of internal fixation portion and corresponding external fixation portion and between two upper limit portions.
3. The blower fixing structure for an air conditioner of a vehicle according to claim 1, wherein: the number of the inner fixing parts and the outer fixing parts is five, and the inclination angles of the inner fixing parts and the outer fixing parts are 9 degrees.
4. The blower fixing structure for an air conditioner of a vehicle according to claim 1, wherein: the air outlet volute is externally protruded on the mounting hole to form a circular arc-shaped guide main plate concentric with the mounting hole, a positioning notch and a limiting notch are formed at the free end of the guide main plate, the limiting notch is circumferentially connected with the positioning notch, and the depth of the limiting notch is larger than that of the positioning notch; the edge of one side of the mounting disc, which is far away from the air outlet volute, is also radially protruded to form a guide auxiliary plate, and the guide auxiliary plate is positioned in the limit notch to realize circumferential limit of the screwing state; when unscrewing, the guide auxiliary plate is elastically deformed and positioned in the positioning notch.
5. The blower fixing structure for an air conditioner of a vehicle according to claim 1, wherein: a positioning column is formed on the air outlet volute by protruding outwards from the mounting hole, and a threaded hole is formed on the positioning column; the edge of one side of the mounting plate far away from the air outlet volute is also provided with an auxiliary positioning support lug in a protruding mode along the radial direction, the auxiliary positioning support lug is abutted to the positioning column, a through hole corresponding to the threaded hole is formed in the auxiliary positioning support lug, and a screw is arranged in the through hole and is in threaded connection with the threaded hole.
6. The blower fixing structure for an air conditioner of a vehicle according to claim 5, wherein: the air outlet volute is also provided with a section of guide rib plate connected with the positioning column in a protruding mode, the guide rib plate and the positioning column are sequentially arranged along the screwing direction, and the protruding height of the guide rib plate is gradually increased along the screwing direction until the protruding height of the guide rib plate is equal to the height of the positioning column.
7. The blower fixing structure for an air conditioner of a vehicle according to claim 1, wherein: the air outlet volute is provided with a sealing surface which is obliquely arranged outside the mounting hole, the oblique direction of the sealing surface is opposite to that of the inner fixing part, and the sealing surface is provided with an air return port communicated with an air outlet channel of the air outlet volute; the mounting plate is provided with an air return channel communicated with an air blower fixed in the mounting plate, the outer end of the air return channel extends outwards along the radial direction of the mounting plate, the outer end face of the air return channel is parallel to the sealing face and is opposite to the sealing face, the air return channel is communicated with an air return opening, a foam sealing ring is compressed between the end face of the air return channel and the sealing face, and the air return opening is positioned in the foam sealing ring.
8. The blower fixing structure for an air conditioner of a vehicle according to claim 7, wherein: a circle of positioning ribs are formed on the end face of the return air channel in a protruding mode, the foam sealing ring is fixedly connected with the positioning ribs in a bonding mode and sleeved outside the positioning ribs, and the thickness of the foam sealing ring is larger than the protruding height of the positioning ribs.
9. The blower fixing structure for an air conditioner of a vehicle according to claim 7, wherein: the inclination angle of the sealing surface and the end surface of the return air channel is 20 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322797137.1U CN220816069U (en) | 2023-10-18 | 2023-10-18 | Fixing structure for blower of automobile air conditioner box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322797137.1U CN220816069U (en) | 2023-10-18 | 2023-10-18 | Fixing structure for blower of automobile air conditioner box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816069U true CN220816069U (en) | 2024-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202322797137.1U Active CN220816069U (en) | 2023-10-18 | 2023-10-18 | Fixing structure for blower of automobile air conditioner box |
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| CN (1) | CN220816069U (en) |
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