CN105114360A - Volute fan mounting structure and assembly method thereof - Google Patents
Volute fan mounting structure and assembly method thereof Download PDFInfo
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- CN105114360A CN105114360A CN201510578713.0A CN201510578713A CN105114360A CN 105114360 A CN105114360 A CN 105114360A CN 201510578713 A CN201510578713 A CN 201510578713A CN 105114360 A CN105114360 A CN 105114360A
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- 230000002093 peripheral effect Effects 0.000 claims description 46
- 238000013016 damping Methods 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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Abstract
The invention aims to provide a volute fan mounting structure convenient to mount and maintain, and mainly solves the problem that the existing volute fan mounting structure is poor in maintainability. The volute fan comprises a volute fan and a mounting plate; the volute fan comprises a volute, a motor and an impeller; the motor is installed in the spiral case, the spiral case is fixed in the mounting panel, be equipped with the mounting panel air intake on the mounting panel, the air intake of spiral case with the mounting panel air intake is relative. The volute fan mounting structure is more convenient to mount and maintain. The invention also provides an assembling method of the volute fan mounting structure.
Description
Technical Field
The invention relates to the field of air supply mechanisms, in particular to a volute fan mounting structure and an assembling method thereof.
Background
As shown in fig. 1, a volute fan on the market at present comprises a motor 91, a mounting plate 92, an impeller 93 and a volute 94, wherein the volute 94 is integrally formed, the motor 91 is mounted on one side of the mounting plate 92, the impeller 93 and the volute 94 are mounted on the other side of the mounting plate, a motor shaft penetrates through the mounting plate 92 and then is connected with the impeller 93 to drive the impeller 93 to rotate, one side of the volute 94 close to the mounting plate 92 is open, an air suction inlet is formed on one side far away from the mounting plate 92, and the volute is sleeved outside the impeller 93 and forms a space for accommodating the impeller 93 together with. The steps of this structure when installed are as follows: the motor 91 is first mounted to the mounting plate 92, the impeller is then connected to the motor, and the volute 94 is finally mounted to the mounting plate. If the volute fan breaks down and needs to be overhauled and replaced under the structure, the volute 94 must be detached firstly, then the motor 91 and the impeller 93 are detached from the mounting plate 92, if the motor 91 is fixed behind the mounting plate 92, the mounting plate 92 needs to be detached if the motor 91 needs to be checked, the process is very complicated, and the maintainability is poor.
Disclosure of Invention
In view of this, the present invention provides an installation structure of a volute blower, which is capable of being installed and maintained conveniently.
In order to achieve the purpose, the invention adopts the following technical scheme:
a volute fan mounting structure comprises a volute fan and a mounting plate; the volute fan comprises a volute, a motor and an impeller; the motor is installed in the spiral case, the spiral case is fixed in the mounting panel, be equipped with the mounting panel air intake on the mounting panel, the air intake of spiral case with the mounting panel air intake is relative.
Preferably, the scroll compressor further comprises a support plate, the motor is mounted on the support plate, and the support plate is fixed on one side wall of the scroll casing, wherein the side wall is opposite to the scroll casing air inlet.
Preferably, in the aforementioned volute blower mounting structure, when viewed from an axial section including the impeller axis, a distance from each point on the volute peripheral wall near the center line of the volute to the impeller axis is greater than a distance from each point on the volute peripheral walls on both sides to the impeller axis.
Preferably, in the aforementioned volute blower mounting structure, a flange is provided on the housing of the motor, the flange is fixed to the support plate, and a first vibration reduction structure is provided between the flange and the support plate.
Preferably, in the volute blower mounting structure, a motor mounting opening is formed in one side wall of the volute, a cylindrical support extending in the axial direction is arranged at the motor mounting opening in the one side wall of the volute, and a second vibration damping structure used for being matched with a motor is arranged on the cylindrical support.
Preferably, in the aforementioned volute blower mounting structure, the volute includes a first half shell and a second half shell, the first half shell includes a first half shell peripheral wall and a first half shell side wall, the second half shell includes a second half shell peripheral wall and a second half shell side wall, and the second half shell side wall is provided with a volute air inlet; the first half shell perimeter wall is connected to the second half shell perimeter wall.
Preferably, in the volute blower mounting structure, a first sealing structure is provided at a junction of the first half shell and the second half shell.
Preferably, in the volute fan mounting structure, the impeller includes a web and blades disposed on an outer edge of the web; and a motor mounting opening is formed in the first half shell, and a rotating shaft of the motor penetrates through the motor mounting opening to be connected with a web of the impeller.
Another object of the present invention is to provide an assembling method of a volute blower mounting structure, which specifically includes the following steps:
an assembling method applied to the volute casing fan mounting structure comprises the following steps:
s1, fixedly connecting the motor with the volute;
s2, connecting the impeller with the rotating shaft of the motor;
and S3, mounting the volute together with the motor and the impeller to the mounting plate, wherein the mounting plate is provided with an air inlet, and the air inlet of the volute is opposite to the air inlet of the mounting plate.
An assembling method applied to the volute casing fan mounting structure comprises the following steps:
s1, mounting the second half shell on the mounting plate;
s2, mounting the motor and the impeller on the first half shell;
s3, connecting the first half shell and the second half shell which are provided with the motor and the impeller, and further integrally installing the volute fan on the installation plate.
Preferably, in the aforementioned assembling method of the scroll fan mounting structure,
the volute fan mounting structure further comprises a supporting disc; in S2, the step of mounting the motor and the impeller on the first half casing specifically includes:
securing the support tray to the side wall;
passing a rotating shaft of the motor through a motor mounting opening in the first half shell and securing the motor to the support plate to secure the motor to the first half shell;
connecting the web of the impeller with a rotating shaft of the motor to connect the impeller with the motor;
or,
in S2, the motor and the impeller are mounted on the first half shell, specifically: connecting the motor with the support plate;
fixing the support disc and the motor on the first half shell, and enabling a rotating shaft of the motor to penetrate through a motor mounting opening on the first half shell;
connecting a web of the impeller with a rotating shaft of the motor to connect the impeller with the motor.
Preferably, in the aforementioned assembling method of the scroll fan mounting structure,
the mounting of the second half shell to the mounting plate in step S1 includes:
s11, enabling the volute air inlet on the second half shell to be opposite to the air inlet on the mounting plate;
and S12, connecting the screw with the mounting plate through the second half shell on the side of the second half shell far away from the mounting plate so as to fix the second half shell to the mounting plate.
The invention has the beneficial effects that:
1. the motor is arranged on the volute, when the volute fan needs to be maintained, only the volute needs to be disassembled, the mounting plate does not need to be disassembled, and the maintenance convenience of the volute fan is improved.
2. The metal support plate is arranged on the volute, the motor is arranged on the support plate, and the load of the motor is borne by the support plate, so that the load of the volute can be reduced, and the possibility of deformation and damage of the volute can be reduced.
3. The peripheral wall of the volute located at the middle part is protruded towards the direction far away from the axis of the motor compared with the peripheral walls of the volutes located at two sides, so that the volute has larger volume than a common volute, and the air supply efficiency can be improved.
4. The volute is manufactured into a structure of two half shells, so that the volute is convenient to manufacture and install.
5. Compared with the existing installation mode, the assembly method of the volute fan installation structure has simpler steps, and can install the impeller and the motor on the volute and then integrally install the volute, thereby simplifying the installation process.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is an exploded view of a prior art volute mechanism.
Fig. 2 is an exploded schematic view of a volute blower mounting structure according to a second embodiment of the present invention.
Fig. 3 is an exploded schematic view of a volute blower according to a first embodiment of the invention.
Fig. 4 is an external view of a scroll fan according to a first embodiment of the present invention.
Fig. 5 is a sectional view of a volute blower mounting structure of the first embodiment of the invention.
Fig. 6 is a partially enlarged view of a region B in fig. 5.
Fig. 7 is a partially enlarged view of the region C in fig. 5.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.
The present scroll fan mounting structure includes a motor, in the following description, an axial direction is defined as a direction parallel to a motor axis, a radial direction is defined as a direction perpendicular to the motor axis, and a circumferential direction is defined as a direction rotating around the motor axis; the lateral directions are relative to the axial direction of the motor, for example, in fig. 3, the first half-shell 13 is located on one side, the second half-shell 15 is located on the other side, and the impeller 14 is located in the middle of the first half-shell 13 and the second half-shell 15.
The invention relates to a volute fan mounting structure, which comprises a volute fan and a mounting plate; the volute fan comprises a volute, a motor and an impeller; the volute includes at least one side wall and a peripheral wall surrounding the impeller; wherein the motor is arranged on one side wall of the volute; the mounting panel is used for fixing the spiral case, be equipped with the mounting panel air intake on the mounting panel, the spiral case with mounting panel fixed connection and through mounting panel air intake air can get into the inside of spiral case. The volute at least comprises the following structures: the structure I is as follows: as shown in fig. 3, the volute is sectioned into the shape of two half-shells 13, 15 along a median line in the direction of the axis of the volute; the structure II is as follows: as shown in fig. 1, the volute 94 has a side wall and a peripheral wall surrounding the impeller, the side wall and the peripheral wall are formed integrally or separately, the other side of the volute is open and is directly fixed to the mounting plate 92, and the mounting plate 92 is provided with an air inlet; the structure is three: as shown in fig. 2, compared to the volute of structure 2, the volute 84 of structure three has a first side wall, a second side wall and a peripheral wall, wherein the first side wall and the peripheral wall form a volute casing 842 with one open side, the second side wall is a volute bottom plate 841, the volute bottom plate 841 is used for closing the open side of the volute casing 841 and forms the volute 84, and the volute 84 is integrally fixed on the mounting plate 82. For the volute structures with the three structures, the volute structure has the common points that the motor is directly fixed on the volute, the volute is fixedly connected with the mounting plate, the mounting plate is fixed in the air conditioning equipment, and the weight of the volute, the motor and the impeller is borne by the mounting plate. The volute and the motor can be integrally installed and detached, and installation and maintenance are facilitated. The volute fan mounting structure adopting the volute structure is further described below.
Taking fig. 4-6 as an example, a first description will be given of a volute fan mounting structure in the first embodiment, where the volute structure in the first embodiment adopts the manner of the first structure, as shown in fig. 5, the volute is used for accommodating an impeller, and when viewed from an axial cross section including an axis of the impeller, distances from points on a volute peripheral wall close to a volute centerline to the axis are greater than distances from points on volute peripheral walls on both sides to the axis 144. Wherein the aforementioned volute centerline refers to the centerline 139 of the volute that is perpendicular to the impeller axis 144. Preferably, the distance from each point on the inner wall of the volute peripheral wall near the center line 139 of the volute to the axis 144 in the direction of the axis 144 is larger than the distance from each point on the inner wall of the volute peripheral wall on both sides of the axis to the axis 144, as shown in fig. 5, in an axial section of the volute taken by cutting the volute from a plane containing the axis 144 of the impeller. Preferably, the axial section of the inner wall of the peripheral wall of the volute is arc, trapezoid, arc of cut edge or triangle matching with the shape of the peripheral wall. By designing the inner wall of the peripheral wall of the volute to be a structure protruding in the middle, different vertical air-conditioning structures with curved shells can be adapted. In addition, the volume in the volute can be increased, and the air supply capacity of the volute fan is improved.
For convenience of manufacture, the volute may be provided in a separate structure. As shown in fig. 3-5. The scroll casing includes a first half casing 13 and a second half casing 15, the first half casing 13 including a first half casing peripheral wall 131 and a first half casing side wall 132, the second half casing including a second half casing peripheral wall 151 and a second half casing side wall 152, the first half casing peripheral wall 131 and the second half casing peripheral wall 151 being curved in such a manner as to surround the outer periphery of the impeller 14. The first half-shell circumferential wall 131 includes a fixed end connected to the edge portion of the first half-shell side wall 132 and a connection end 1311 distant from the first half-shell side wall 132, the second half-shell circumferential wall 151 includes a fixed end connected to the edge portion of the second half-shell side wall 152 and a connection end 1511 distant from the second half-shell side wall 152, and the connection end 1311 of the first half-shell circumferential wall 131 is connected to the connection end 1511 of the second half-shell circumferential wall 151, so that the insides of the first half-shell 13 and the second half-shell 15 form a housing chamber for housing the impeller 14 and are formed in a cylindrical shape whose radius with respect to the motor axis 111 becomes larger in the rotation direction of the impeller 14.
The motor 11 of the scroll fan in the present embodiment includes a motor body 117 and a rotary shaft 112. The impeller 14 is mounted in the housing chamber, and has a cylindrical shape in which a plurality of blades 141 formed to be elongated in the axial direction of the motor axis 111 are arranged radially with respect to the motor axis 111 at predetermined intervals. One end of the vane 141 is mounted to an outer peripheral portion of the substantially circular web 142, and the other end of the vane 141 is mounted to an annular support ring 143 and forms an impeller inlet inside. The web 142 is fixed to the rotating shaft 112 of the motor at the center, and the impeller 14 rotates about the rotating shaft 112 by the driving of the motor 11. The first half shell 13 is provided with a motor mounting opening 133, the web 142 of the impeller is arranged close to the motor mounting opening 133, the rotating shaft 112 of the motor 11 penetrates through the motor mounting opening to be connected with the web 142 of the impeller 14, so as to drive the web 142 to rotate, the second half shell 15 is provided with a volute air inlet 153, and the volute air inlet 153 and the impeller air inlet are oppositely arranged to guide air to the inner side of the impeller 14. The motor body 117 is supported by the first half-shell 13. A first vibration damping device is provided between the motor body 117 and the first half-shell 13, and the structure and the specific installation manner of the first vibration damping device will be described in detail below.
Since the volute casing is usually made of plastic material and has low overall strength, the direct mounting of the motor body 117 on the first half casing 13 may result in that the strength of the first half casing 13 is not enough to support the power of the motor, which may cause the first half casing 13 to deform or damage, and for this reason, as a preferred embodiment, the volute casing comprises a support disc 12, the support disc 12 is made of metal material, the support disc 12 is fixed on the first half casing 13, preferably on the outer wall of the first half casing side wall 132 of the first half casing 13, and the motor body 117 is fixed on the support disc 12. Preferably, the motor body 117 is fixed on the side of the support disc 12 remote from the first half-shell 13. By providing the support plate 12, the motor body 117 can be disposed on and supported by the volute without deforming or damaging the volute.
When the support plate 12 is provided, a first vibration damping means may be provided between the support plate 12 and the motor body 117. A flange 133 is provided on the outer peripheral wall of the motor body 117, the flange 133 is fixed to the support plate 12, and a first vibration damping means is provided between the flange 133 and the support plate 12. Preferably, said first damping means is preferably a first damping washer 114 arranged between the flange 133 and the support disc 12. As a preferable mode, as shown in fig. 3, the first damping washer 114 is provided in a column shape, a socket is provided on an outer circumference of the first damping washer 114 in the column shape, the flange 133 is in a sheet shape and is inserted into the first damping washer 114 from the socket, a through hole communicating with the mounting hole of the flange 133 is provided on the first damping washer 114, and a coupling member such as a screw or a stud is connected to the support plate 12 after passing through the through hole of the first damping washer 114 and the mounting hole of the flange 133, thereby fixing the motor body 117. The first damping washer 114 is preferably a rubber mount. When the support plate 12 is not provided, the motor 11 may be directly connected to the first half shell 13 by the first vibration damping device described above in a manner that the support plate 12 is replaced with the first half shell 13.
The first half-shell circumferential wall 131 extends in the radial direction away from the motor axis 111 from the fixed end to the connection end 1311, and the second half-shell circumferential wall 151 extends in the radial direction away from the motor axis 111 from the fixed end to the connection end 1511. Preferably, the connection end 1311 of the first half-shell circumferential wall 131 and the connection end 1511 of the second half-shell circumferential wall 151 are connected close to or coincident with the volute centerline 139 perpendicular to the motor axis 111.
To improve the gas tightness of the volute, a sealing structure may be provided at the junction of the first 13 and second 15 half-shells. Preferably, the sealing structure is a rib provided on one of the connecting end 1311 of the first half-shell peripheral wall 131 and the connecting end 1511 of the second half-shell peripheral wall 151 and a groove provided on the other, preferably, as shown in fig. 5, a rib 1312 extending toward the second half-shell 15 is provided on the connecting end 1311 of the first half-shell peripheral wall 131, a groove 1512 corresponding to the rib 1312 is provided on the second half-shell peripheral wall 151, and when the first half-shell 13 is connected to the second half-shell 15, the rib 1312 is inserted into the groove 1512, so that the sealing performance of the half-shells can be improved, and the peripheral walls of the volute can be prevented from leaking air to reduce the efficiency of the volute fan. The ribs 1312 and grooves 1512 may be provided in one or more than one arrangement.
The sealing arrangement may also take the form of a sealing ring by providing a flange on one of the first 13 and second 15 half shells and a groove on the other, the flange abutting the groove and compressing the sealing ring in the groove to effect a seal. The sealing ring can be made of rubber or other soft materials. The sealing structure may be provided radially outside or radially inside the peripheral wall of the volute.
As a preferred embodiment, as shown in fig. 5, the web 142 is disposed to protrude from the edge toward the axial center of the web 142 toward the inside of the impeller 14, the web 142 is substantially bowl-shaped or conical, the radial inner side of the web 142 forms a motor accommodating space, the rotating shaft 112 of the motor passes through the volute and enters the volute, and a part of the motor main body 117 can be located in the motor accommodating space, which has the advantages of reducing the length of the motor 11 protruding outside the volute, reducing the installation width of the volute fan in the axial direction, and making the overall structure of the volute fan more compact. At this time, an inner concave portion 1321 is correspondingly formed on the first half casing side wall 132 of the first half casing 13, the motor mounting port 133 is provided at the center of the inner concave portion 1321, and the inner concave portion 1321 is also provided so as to protrude from the edge toward the axial center of the motor mounting port 133 toward the inside of the impeller 14.
In order to further reduce the vibration between the motor and the support plate, as shown in fig. 7, it is preferable that a flange 133 is provided on the outer circumferential wall of the motor body 117, the flange 133 is fixed to the support plate 12, and a first vibration reduction structure is provided between the flange 133 and the support plate 12. Preferably, the first vibration dampening structure is a first vibration dampening washer 114 disposed between the flange 133 and the support disk 12. As a preferable mode, as shown in fig. 7, the first damping washer 114 is provided in a column shape, a socket is provided on an outer circumference of the first damping washer 114 in the column shape, the flange 133 is in a sheet shape and is inserted into the first damping washer 114 from the socket, a through hole communicating with the mounting hole of the flange 133 is provided on the first damping washer 114, and a coupling member such as a screw or a stud is connected to the support plate 12 after passing through the through hole of the first damping washer 114 and the mounting hole of the flange 133, thereby fixing the motor 11. The first damping washer 114 is preferably a rubber mount.
Preferably, in order to reduce the vibration transmitted from the motor body 117 to the scroll casing 13, a cylindrical support 134 may be provided at an edge of the motor mounting opening 133 of the first half casing 13, the cylindrical support 134 having a through hole therein communicating with the motor mounting opening 133, as shown in fig. 7, a fixed end of the cylindrical support 134 being connected to the edge of the motor mounting opening 133, and a free end of the cylindrical support 134 extending in a direction away from the center of the scroll casing on the axis. At least a portion of the motor body 117 is positioned within the cylindrical support 134 such that the rotating shaft 112 of the motor is coupled to the impeller 14 through the motor mounting opening 133. A second vibration damping structure is arranged between the cylindrical support 134 and the outer peripheral wall of the motor body 117, preferably, the second vibration damping structure is a second sealing ring 135 arranged at the end or on the inner wall of the cylindrical support 134, when the motor 11 is positioned in the cylindrical support 134, the second sealing ring 135 forms elastic fit with the outer peripheral wall of the motor body 117, and vibration transmitted to the volute by the motor can be reduced; meanwhile, sealing fit can be formed, the motor mounting port 133 can be sealed, sealing of the motor mounting port 133 is achieved, and wind leakage from the motor mounting port is prevented from reducing efficiency of the volute fan. The second packing 135 may be mounted on the cylindrical holder 134 and may be mounted on the outer circumference of the motor body 117. Preferably, as shown in fig. 7, the second sealing ring 135 is provided in a U-shaped cross-section annular structure, the opening of the U-shaped cross-section annular structure faces the free end of the cylindrical support 134 and is mounted on the free end of the cylindrical support 134, and the inner peripheral wall of the second sealing ring 135 abuts against the outer peripheral wall of the motor body 117. Preferably, a seal lip portion extending toward the motor is provided on the inner periphery of the second seal ring 135, and is contactable with the outer peripheral wall of the motor body 117. Preferably, the volute casing 13 is provided with a mounting support 136, the support disc 12 is connected with the mounting support 136 to be mounted on the first half casing 13, and the side surface of the support disc 12 opposite to the cylindrical support 134 presses the second sealing ring 135 to clamp the second sealing ring between the support disc 12 and the cylindrical support 134, so as to better fix the second sealing ring 135.
The following explains the mounting structure of the scroll fan of the present embodiment. As shown in fig. 4, the mounting structure of the volute blower of this embodiment includes the volute blower and the mounting plate 4, the volute blower is mounted on the mounting plate 4, the mounting plate 4 is provided with a mounting plate air inlet 41, the second half-shell 15 is fixedly connected to the mounting plate 4 through fixing members such as screws, studs, rivets, etc., the volute air inlet 153 on the second half-shell 15 is opposite to the mounting plate air inlet 41 on the mounting plate 4, and the motor 11 and the impeller 14 are both mounted on the first half-shell 13; the first half-shell 13, on which the motor 11 and impeller 14 are mounted, is connected to the second half-shell 15 to mount the volute fan to the mounting plate 4.
The following describes in detail a specific assembly manner of the mounting structure of the volute blower of the first embodiment:
in fixing the scroll fan to the mounting plate 4, there are included:
S1：
the second half-shell 15 is mounted to the mounting plate 4. Preferably, the second half-shell side wall 152 is connected to the mounting plate 4 by fasteners, and the second half-shell peripheral wall 151 is located on the side of the second half-shell side wall 152 remote from the mounting plate 4. The fixing piece can adopt a connecting piece such as a screw, a rivet and the like.
S2: the motor 11 and the impeller 14 are mounted to the first half-shell 13. The method specifically comprises two modes:
mode 1:
securing the support tray 12 to the side wall 132 of the first housing half 13;
fixing the motor 11 to the first half shell 13 by inserting the rotating shaft 112 of the motor 11 through the motor mounting opening 133 of the first half shell 13 and fixing the motor 11 to the support plate 12;
the web 142 of the impeller 14 is connected to the rotary shaft 112 of the motor 11 to connect the impeller 14 to the motor.
Or, with the mode 2, specifically: :
connecting the motor 11 with the support disc 12;
fixing the support plate 12 together with the motor 11 to the first half shell 13, and making the rotating shaft 112 of the motor 11 pass through the motor mounting opening 133 on the first half shell 13;
the web 142 of the impeller 14 is connected to the rotary shaft 112 of the motor 11 to connect the impeller 14 to the motor 11.
S3, the first half-shell 13, on which the motor 11 and the impeller 14 are mounted, is connected to the second half-shell 15, and the volute fan is integrally mounted to the mounting plate 4.
Wherein the sequence of S1 and S2 can be interchanged or carried out simultaneously.
As a preferred mode, in S1, the second half shell is mounted on the mounting plate 4 by screwing, and specifically includes:
s11, the volute air inlet on the second half shell 15 is opposite to the air inlet on the mounting plate 4;
s12, screws are connected to the mounting plate through the second half-shell on the side of the second half-shell remote from the mounting plate to secure the second half-shell 15 to the mounting plate 4. The screw may be provided in plurality. Therefore, the influence of the screw on the air duct can be reduced, and the noise is reduced.
Compared with the existing volute fan structure, the motor 11 and the impeller 14 of the volute fan in the first embodiment are all installed on the first half shell 13, and are integrally installed with the first half shell 13 during installation, so that the volute fan is more convenient and faster to install. When the motor 11 or the impeller 14 needs to be repaired, maintained, replaced and the like, the first half shell 13, the motor 11 and the impeller 14 as a whole and the second half shell 15 are detached. The second volute 15 and the mounting plate 4 do not need to be disassembled, and the whole maintainability is better.
The second embodiment is shown in fig. 2, and relates to a volute fan mounting structure, which is suitable for volute structures of a second structure and a third structure, and the volute fan mounting structure of the second embodiment is described below by taking the third structure as an example, and for the volute structure of the second structure, the application to the volute structure of the second structure can be realized only by canceling the volute bottom plate 842 in the third structure. Specifically, the volute blower mounting structure includes a volute 84, an impeller 83, a motor 81, and a mounting plate 82. A scroll 84 for accommodating the impeller 83, including at least one side wall and a peripheral wall surrounding the impeller, and formed in a cylindrical shape in which a radius with respect to a motor axis increases in a rotation direction of the impeller 83, the scroll 84 has an air supply passage formed therein and extending in a tangential direction from the peripheral wall of the scroll 84 on the side having the larger radius with respect to the motor axis, and the impeller 83 is rotated to supply air to the air supply passage. The motor 81 is installed on one side wall of the volute 84, the rotating shaft 112 of the motor 81 passes through the one side wall of the volute 84 to be connected with the impeller 83 inside the volute 84 and drive the impeller 83 to rotate, and a volute air inlet is formed in the other side of the volute opposite to the one side wall where the motor is installed. A mounting plate air inlet is formed in the mounting plate 82, and the volute 84 is connected to the mounting plate 82 at a side away from the motor 81, and is opposite to the air inlet of the mounting plate 82.
As a preferable mode, as shown in fig. 2, for convenience of manufacture and installation, the volute 84 includes a volute casing 841 and a volute bottom plate 842, the volute casing 841 is formed in a cylindrical shape whose radius with respect to the motor axis becomes larger in the rotation direction of the impeller 83, and has a side wall for mounting the motor 81 and a peripheral wall provided at the outer edge of the side wall to surround the impeller, the peripheral wall is preferably formed integrally with the side wall, and the volute casing 841 is open at the other side opposite to the side on which the motor 81 is mounted, which is advantageous for mounting the motor 81 and the impeller 83. The volute bottom plate 842 is used for closing the open side of the volute casing cover 841 on the other side, an air inlet is arranged on the volute bottom plate 842 and serves as the volute air inlet, the volute casing 841 is connected with the volute bottom plate 842 on the side far away from the motor 81, the air inlet of the impeller 83 is opposite to the air inlet of the volute bottom plate 842, and the specific structure of the impeller 83 is the same as that of the impeller in the second embodiment. The volute blower of the second embodiment is mounted to a mounting plate (not shown) that is generally coupled to the mounting plate opposite the side of the volute floor 842 coupled to the volute hood 841, and the mounting plate has a mounting plate inlet opening opposite the inlet opening of the volute floor 842. When the motor or the impeller needs to be overhauled or replaced, the volute casing cover 842, the motor 81 and the impeller 83 are integrally detached, the volute bottom plate 842 does not need to be detached, the mounting plate 82 does not need to be detached, and the disassembly and assembly convenience and the maintainability of the volute fan are improved.
Since the volute is usually made of a plastic material and has low overall strength, directly mounting the motor 81 on the volute 84 may cause the strength of the volute 84 to be insufficient to support the power of the motor, so that the volute is deformed or damaged.
In the second embodiment, the first sealing structure, the first vibration damping structure, the second vibration damping structure, or a combination thereof is also provided as described in the first embodiment, and the specific structure is that the volute casing 841 is used to replace the first half shell 13 in the first embodiment, and detailed description is omitted.
The following describes in detail a specific assembly manner of the mounting structure of the volute blower of the second embodiment:
in securing the volute blower to the mounting plate 82, it includes:
s1, fixedly connecting the motor 81 with the volute 84;
s2, connecting the impeller 83 with the motor 81;
s3, mounting the volute 84, together with the motor 81 and the impeller 83, to the mounting plate 82, wherein the mounting plate is provided with an air inlet, and the air inlet of the volute is opposite to the air inlet of the mounting plate.
Compared with the existing volute fan mounting structure, the motor 81 and the impeller 83 of the volute fan in the mounting structure of the second embodiment are all mounted on the volute 84, and are integrally mounted with the volute 84 during mounting, so that the mounting is more convenient. When the motor 81 or the impeller 83 needs to be repaired, maintained, replaced and the like, the volute 84, the motor 81 and the impeller 83 as a whole are detached from the mounting plate 82. The mounting plate 82 does not need to be disassembled, and the whole maintenance performance is better. Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Also, it should be understood that the example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods to provide a thorough understanding of the present disclosure. Those skilled in the art will understand that specific details need not be employed, that example embodiments may be embodied in many different forms and that example embodiments should not be construed as limiting the scope of the disclosure. In some example embodiments, well-known device structures and well-known technologies are not described in detail.
When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" and "directly between," "adjacent" and "directly adjacent," etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another element, region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Spatially relative terms, such as "inner," "outer," "below," "lower," "above," "upper," and the like, are used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. The utility model provides a spiral case fan mounting structure which characterized in that: the volute fan comprises a volute fan and a mounting plate; the volute fan comprises a volute, a motor and an impeller; the motor is installed in the spiral case, the spiral case is fixed in the mounting panel, be equipped with the mounting panel air intake on the mounting panel, the air intake of spiral case with the mounting panel air intake is relative.
2. The volute blower mounting structure of claim 1, wherein: the volute also comprises a supporting plate (12), the motor is installed on the supporting plate (12), the supporting plate (12) is fixed on one side wall of the volute, and the side wall is opposite to the volute air inlet.
3. The volute blower mounting structure of claim 1, wherein: and viewed from the axial section containing the axis of the impeller, the distance from each point on the peripheral wall of the volute close to the midline of the volute to the axis of the impeller is greater than the distance from each point on the peripheral walls of the volutes at two sides to the axis of the impeller.
4. The volute blower mounting structure of claim 2, wherein: a flange (133) is arranged on a shell of the motor (11), the flange (133) is fixed on the supporting plate (12), and a first vibration damping structure is arranged between the flange (133) and the supporting plate (12).
5. The volute blower mounting structure of claim 1, wherein: the spiral case is characterized in that a motor mounting opening (133) is formed in one side wall of the spiral case (13), a cylindrical support (134) extending along the axial direction is arranged at the motor mounting opening (133), and a second vibration damping structure matched with a motor is arranged on the cylindrical support (134).
6. The volute blower mounting structure of any of claims 1-5, wherein: the volute comprises a first half-shell (13) and a second half-shell (15), the first half-shell (13) comprises a first half-shell peripheral wall (131) and a first half-shell side wall (132), the second half-shell comprises a second half-shell peripheral wall (151) and a second half-shell side wall (152), and the second half-shell side wall (152) is provided with a volute air inlet; the first half shell perimeter wall is connected to the second half shell perimeter wall.
7. The volute blower mounting structure of claim 6, wherein: and a first sealing structure is arranged at the joint of the peripheral wall of the first half shell and the peripheral wall of the second half shell.
8. The volute blower mounting structure of claim 6, wherein: the impeller (14) comprises a web (142) and blades (141) arranged on the outer edge of the web (142); the first half shell (13) is provided with a motor mounting opening (133), and a rotating shaft (112) of the motor (11) penetrates through the motor mounting opening (133) to be connected with a web (142) of the impeller (14).
9. A method of assembling a volute blower mounting structure as defined in any one of claims 1 to 5, wherein: the method comprises the following steps:
s1, fixedly connecting the motor (81) with the volute (84);
s2, connecting the impeller (83) with a rotating shaft of the motor (81);
s3, mounting the volute (84) together with the motor (81) and the impeller (83) to the mounting plate (82), wherein the mounting plate is provided with an air inlet, and the air inlet of the volute is opposite to the air inlet of the mounting plate.
10. A method of assembling a volute blower mounting structure as defined in any one of claims 6 to 8, wherein: the method comprises the following steps:
s1, mounting the second half shell (15) on the mounting plate (4);
s2, mounting the motor (11) and the impeller (14) on the first half shell (13);
s3, connecting the first half shell (13) with the second half shell (15) on which the motor (11) and the impeller (14) are mounted, and further integrally mounting the volute fan on the mounting plate (4).
11. The method of assembling a volute blower mounting structure of claim 10 wherein: the volute fan mounting structure further comprises a support plate (12); in S2, the step of mounting the motor (11) and the impeller (14) on the first half shell (13) is specifically:
-fixing the support disc (12) to the side wall of the first half-shell (13);
-passing the rotation shaft (112) of the motor (11) through the motor mounting opening (133) in the first half-shell (13) and fixing the motor (11) on the support plate (12) so as to fix the motor (11) to the first half-shell (13);
connecting the web (142) of the impeller (14) with the rotational shaft (112) of the motor (11) to connect the impeller (14) with the motor (11);
or,
in the step S2, the motor (11) and the impeller (14) are mounted on the side wall of the first half shell (13), specifically: connecting the electric motor (11) to the support disc (12);
fixing the support disc (12) together with the motor (11) to the first half-shell (13) and enabling a rotating shaft (112) of the motor (11) to penetrate through a motor mounting opening (133) on the first half-shell (13);
connecting a web (142) of the impeller (14) with a rotational shaft (112) of the motor (11) to connect the impeller (14) with the motor (11).
12. The method of assembling a volute blower mounting structure of claim 10 wherein: -mounting the second half-shell (15) to the mounting plate (4) in step S1, comprising:
s11, the volute air inlet on the second half shell (15) is opposite to the air inlet on the mounting plate (4);
and S12, connecting the screw with the mounting plate through the second half shell on the side of the second half shell far away from the mounting plate so as to fix the second half shell (15) to the mounting plate (4).
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| CN201510578713.0A CN105114360B (en) | 2015-09-11 | 2015-09-11 | Volute fan mounting structure and assembly method thereof |
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| CN201510578713.0A CN105114360B (en) | 2015-09-11 | 2015-09-11 | Volute fan mounting structure and assembly method thereof |
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| CN105114360B CN105114360B (en) | 2018-08-07 |
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| CN113294382A (en) * | 2021-06-30 | 2021-08-24 | 东莞市博森精密叶轮科技有限公司 | Waterproof blower |
| CN114109909A (en) * | 2020-09-01 | 2022-03-01 | 佛山市顺德区美的洗涤电器制造有限公司 | Volute, centrifugal fan, range hood and volute generation method |
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| CN105114360B (en) | 2018-08-07 |
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