CN217873354U - Ventilator for variable frequency motor - Google Patents
Ventilator for variable frequency motor Download PDFInfo
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- CN217873354U CN217873354U CN202221570509.6U CN202221570509U CN217873354U CN 217873354 U CN217873354 U CN 217873354U CN 202221570509 U CN202221570509 U CN 202221570509U CN 217873354 U CN217873354 U CN 217873354U
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Abstract
The utility model provides a ventilator for a variable frequency motor, which comprises a fan shell, a heat radiation fan and a fan supporting frame; the heat radiation fan is arranged in the fan shell and is detachably connected with the fan shell through two fan supporting frames, and the two fan supporting frames are symmetrically arranged at two ends of the heat radiation fan and are respectively and fixedly connected with a rotating shaft of the heat radiation fan; the inner wall of the fan shell is provided with a plurality of annular reinforcing rings, and the annular reinforcing rings and the fan shell are coaxially arranged; the utility model discloses a two fan support frames support and install at the cooling fan both ends, make cooling fan atress balanced, can avoid the bearing in the cooling fan because the atress is uneven and excessive wearing and tearing, adopt two fan support frame installation cooling fan simultaneously, have improved stability of being connected and reliability between cooling fan and the fan casing, make the overall structure of ventilation blower more firm.
Description
Technical Field
The utility model relates to a ventilation blower technical field especially relates to a ventilation blower for inverter motor.
Background
Along with the continuous development of society, the continuous progress of scientific level, power electronics and novel semiconductor device have obtained flourishing development, and inverter motor is one of important component parts among them, inverter motor has obtained extensive application in trades such as industrial control field, in order to prevent that inverter motor from using for a long time, lead to transshipping the scheduling problem to appear because of the high temperature, consequently need at inverter motor external mounting ventilation blower, utilize the ventilation blower can carry out effectual heat dissipation to inverter motor, in order to reduce the influence of temperature to inverter motor, in order to conveniently to the heat dissipation of inverter motor, just need to use an inverter motor ventilation blower.
The patent with the publication number of CN214959086U discloses a ventilator for an inverter motor, which comprises a shell, a heat dissipation fan and air holes, wherein the heat dissipation fan is arranged in the shell close to the middle, and the air holes are formed in the right side wall of the shell; the inner wall of the shell is provided with a noise reduction structure, and the right side in the shell is provided with a dustproof structure; the left middle position department of cooling fan is provided with stable structure, and stable structure includes supporting shoe, bracing piece and connecting block, and the supporting shoe sets up in the left middle position department of cooling fan.
Above-mentioned ventilator for inverter motor has adopted single support frame structure installation cooling fan, and single support frame motor can cause the bearing to damage in long-time operation to reduce the life-span of ventilator.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art, an object of the utility model is to provide a ventilation blower for inverter motor for solve the problem that the single bracing frame motor can cause the bearing to damage in long-time running among the prior art, thereby reduce the life-span of ventilation blower.
In order to achieve the above and other related objects, the present invention provides a ventilator for a variable frequency motor, comprising a fan housing, a heat dissipation fan and a fan support frame; the heat dissipation fan is arranged in the fan shell and is detachably connected with the fan shell through two fan supporting frames, and the two fan supporting frames are symmetrically arranged at two ends of the heat dissipation fan and are respectively fixedly connected with a rotating shaft of the heat dissipation fan; the inner wall of fan casing is equipped with a plurality of annular reinforcing rings, and annular reinforcing ring and fan casing coaxial setting.
The technical scheme has the advantages that: the two fan supporting frames are adopted to support and install the two ends of the cooling fan, so that the stress of the cooling fan is balanced, the bearing in the cooling fan can be prevented from being excessively worn due to unbalanced stress, and meanwhile, the two fan supporting frames are adopted to install the cooling fan, so that the connection stability and reliability between the cooling fan and the fan shell are improved, and the overall structure of the fan is more stable; set up a plurality of annular reinforcing rings at the inner wall of fan casing, through holding with adding of annular reinforcing ring, improved the whole rigidity of casing, prevent that the ventilation blower from appearing warping owing to colliding with in the transportation.
In an embodiment of the present invention, the inner wall of the fan casing is provided with two annular reinforcing rings, including a first annular reinforcing ring and a second annular reinforcing ring, wherein the first annular reinforcing ring is disposed at the middle portion of the fan casing, and the second annular reinforcing ring is disposed at the tail portion of the fan casing.
The technical scheme has the advantages that: the front end of the fan casing is generally connected with the variable frequency motor, the middle part and the tail part are easy to receive accidental collision or extrusion, and the first annular reinforcing ring and the second annular reinforcing ring are arranged in the middle part and the tail part of the fan casing respectively and can effectively protect the two parts of the fan casing.
In an embodiment of the utility model, the fan support frame includes solid fixed ring in center and a plurality of bracing piece, and is a plurality of the bracing piece be radial circumference equipartition in solid fixed ring in center around, the one end of bracing piece with solid fixed ring in center's outer disc fixed connection, the other end with the interior anchor ring of annular reinforcing ring is connected.
And two ends of a rotating shaft of the fan are respectively fixedly connected with the central fixing ring.
The fan supporting frame has the advantages of being simple in structure, convenient to process and install.
In an embodiment of the utility model, cooling fan's pivot is equipped with the leading-out terminal, the leading-out terminal is equipped with the shock attenuation rubber ring with the solid fixed ring junction in center.
The advantage of above-mentioned technical scheme lies in, sets up the shock attenuation rubber ring at leading-out terminal and the solid fixed ring junction in center can effectively reduce radiator fan at the slight vibrations of high-speed rotatory in-process, makes radiator fan operation more steady.
In an embodiment of the present invention, the wire-leading end is provided with a wire-protecting cover plate.
Above-mentioned technical scheme's advantage lies in, through set up the protecting wire apron at the leading-out terminal, can prevent that the electric wire from colliding with the power cord when the installation, and cause the circuit short circuit.
As described above, the utility model discloses a ventilation blower for inverter motor has following beneficial effect:
(1) The utility model adopts two fan supporting frames to support and install at the two ends of the cooling fan, so that the stress of the cooling fan is balanced, the bearing in the cooling fan can be prevented from being excessively worn due to unbalanced stress, and the cooling fan is installed by adopting two fan supporting frames, thereby improving the connection stability and reliability between the cooling fan and the fan shell and ensuring that the whole structure of the fan is more stable;
(2) The inner wall of the fan shell is provided with the plurality of annular reinforcing rings, and the overall rigidity of the fan shell is improved by the clamping of the annular reinforcing rings, so that the fan is prevented from deforming due to collision in the transportation process;
(3) The wire protecting cover plate is arranged at the wire outlet end, so that the situation that the wire collides with a power line when being installed to cause short circuit of the line can be prevented.
Drawings
Fig. 1 is a schematic view showing an overall structure of a ventilator for a variable frequency motor according to an embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 shows that the embodiment of the present invention is a B-direction view of a ventilator for an inverter motor.
Description of the reference symbols
A fan housing 1; a heat radiation fan 2; a rotating shaft 21; an outlet terminal 22; a cushion rubber ring 23; a wire-protecting cover plate 24; a power supply line 25; a wire groove 251; a power supply junction box 26;
a fan support frame 3; a center fixing ring 31; a support bar 32;
an annular reinforcing ring 4; a first annular reinforcing ring 41; a second annular reinforcing ring 42; a mounting through hole 5; and a bearing 6.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 to 3. It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention does not have the substantial technical significance, and the modification of any structure, the change of the proportion relation or the adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms may be changed or adjusted without substantial technical changes.
Referring to fig. 1, the present invention provides a ventilator for an inverter motor, which includes a fan housing 1, a heat dissipation fan 2 and a fan support frame 3; the cooling fan 2 is arranged inside the fan shell 1 and is detachably connected with the fan shell 1 through two fan supporting frames 3, and the two fan supporting frames 3 are symmetrically arranged at two ends of the cooling fan 2 and are respectively and fixedly connected with a rotating shaft 21 of the cooling fan 2; in this embodiment, the fan support frame 3 is connected to the fan casing 1 through a bolt assembly. Adopt two fan support frames 3 to support and install at cooling fan 2 both ends, make cooling fan 2 atress balanced, can avoid bearing 6 in the cooling fan excessively wearing and tearing because the atress is uneven, adopt two fan support frames installation cooling fan 2 simultaneously, improved the stability and the reliability of being connected between cooling fan 2 and fan casing 1, make the overall structure of ventilation blower more firm.
The inner wall of fan casing 1 is equipped with a plurality of annular reinforcing rings 4, and annular reinforcing ring 4 sets up with fan casing 1 is coaxial. Set up a plurality of annular reinforcing rings 4 at fan casing 1's inner wall, through the adding of annular reinforcing ring 4 hold, improved fan casing 1's whole rigidity, prevent that the ventilation blower from appearing warping owing to colliding with in the transportation.
Preferably, the inner wall of the blower enclosure 1 is provided with two annular reinforcing rings 4, including a first annular reinforcing ring 41 and a second annular reinforcing ring 42, wherein the first annular reinforcing ring 41 is arranged in the middle of the blower enclosure 1, and the second annular reinforcing ring 42 is arranged at the tail of the blower enclosure 1; the front end of the fan casing 1 is generally connected to a variable frequency motor (not shown in the figures), the middle part and the tail part of the fan casing 1 are easily accidentally collided or extruded, and the first annular reinforcing ring 41 and the second annular reinforcing ring 42 are respectively arranged at the middle part and the tail part of the fan casing 1 to effectively protect the two parts of the fan casing 1. Further, in other embodiments, an implementer may increase or decrease the number of the annular reinforcing rings 4 according to the specific structure of the blower housing 1 and the working environment thereof, and individually set the positions of the annular reinforcing rings 4 to meet the individual rigid holding requirements.
Preferably, the blower support frame 3 includes a central fixing ring 31 and a plurality of support rods 32, the plurality of support rods 32 are radially and circumferentially and uniformly distributed around the central fixing ring 31, one end of each support rod 32 is fixedly connected with the outer circular surface of the central fixing ring 31, and the other end of each support rod 32 is connected with the inner circular surface of the annular reinforcing ring 4; two ends of a rotating shaft 21 of the fan are respectively fixedly connected with the central fixing ring 31. The technical scheme has the advantages that the fan supporting frame is simple in structure, convenient to process and install.
Preferably, the rotating shaft 21 of the heat dissipation fan 2 is provided with a leading-out terminal 22, and a damping rubber ring 23 is arranged at the connection position of the leading-out terminal 11 and the central fixing ring 31. The shock absorption rubber ring 23 is arranged at the joint of the outlet end 11 and the central fixing ring 31, so that the slight shock of the cooling fan 2 in the high-speed rotation process can be effectively reduced, and the cooling fan 2 can run more stably.
Furthermore, the outlet end 22 is provided with a wire protecting cover plate 24, and the wire protecting cover plate 24 is arranged on the outlet end 22, so that the power wire 25 can be prevented from being collided with during installation to cause short circuit of a line. In this case, the wire cover 24 is circular, the middle portion is integrally formed with the wire groove 251, when the wire cover is installed, the power wire 25 is clamped in the wire groove 251, the wire cover 24 is fastened to the central fixing ring 31 so that the power wire 25 is located between the wire cover 24 and the central fixing ring 31, and finally the wire cover 24 is fastened to the central fixing ring 31 by screws.
The power supply junction box 26 is arranged on the outer surface of the fan shell 1, one end of the power line 25 is connected with the heat dissipation fan 2, and the other end is connected into the power supply junction box 26. The front end of the fan shell 1 is also provided with a plurality of mounting through holes 5 for mounting the fan shell 1 on the variable frequency motor; when the variable frequency motor in the embodiment works with the ventilator, the air inlet direction is the C direction (as shown by the arrow in the C direction in fig. 1).
To sum up, the utility model discloses a two fan support frames are adopted to support and install at the both ends of the cooling fan, make the cooling fan stress balance, can avoid the bearing in the cooling fan to excessively wear because of the unbalanced stress, adopt two fan support frames to install the cooling fan simultaneously, have improved the stability and reliability of connection between cooling fan and the fan casing, make the overall structure of fan more firm; the inner wall of the fan shell is provided with the plurality of annular reinforcing rings, and the overall rigidity of the fan shell is improved by the clamping of the annular reinforcing rings, so that the fan is prevented from deforming due to collision in the transportation process; the wire protecting cover plate is arranged at the wire outlet end, so that the situation that the wire collides with a power line when being installed to cause short circuit of the line can be prevented. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.
Claims (5)
1. A ventilator for a variable frequency motor comprises a fan shell, a heat dissipation fan and a fan supporting frame;
the cooling fan is characterized in that the cooling fan is arranged inside the fan shell and is detachably connected with the fan shell through two fan supporting frames, and the two fan supporting frames are symmetrically arranged at two ends of the cooling fan and are respectively and fixedly connected with a rotating shaft of the cooling fan;
the inner wall of fan casing is equipped with a plurality of annular reinforcing rings, annular reinforcing ring and the coaxial setting of fan casing.
2. A ventilator for an inverter motor according to claim 1, characterized in that: the inner wall of fan casing is equipped with two annular reinforcing rings, including first annular reinforcing ring and second annular reinforcing ring, and wherein first annular reinforcing ring sets up the middle part at fan casing, and the second annular reinforcing ring sets up the afterbody at fan casing.
3. A ventilator for an inverter motor according to claim 1, wherein: the fan supporting frame comprises a central fixing ring and a plurality of supporting rods, the supporting rods are uniformly distributed around the central fixing ring in a radial shape, one end of each supporting rod is fixedly connected with the outer circular surface of the central fixing ring, and the other end of each supporting rod is connected with the inner circular surface of the annular reinforcing ring;
and two ends of a rotating shaft of the fan are respectively fixedly connected with the central fixing ring.
4. A ventilator for an inverter motor according to claim 3, wherein: a wire outlet end is arranged on a rotating shaft of the heat dissipation fan, and a damping rubber ring is arranged at the joint of the wire outlet end and the central fixing ring.
5. A ventilator for an inverter motor according to claim 4, characterized in that: and the wire outlet end is provided with a wire protecting cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221570509.6U CN217873354U (en) | 2022-06-22 | 2022-06-22 | Ventilator for variable frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221570509.6U CN217873354U (en) | 2022-06-22 | 2022-06-22 | Ventilator for variable frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217873354U true CN217873354U (en) | 2022-11-22 |
Family
ID=84096533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221570509.6U Active CN217873354U (en) | 2022-06-22 | 2022-06-22 | Ventilator for variable frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217873354U (en) |
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2022
- 2022-06-22 CN CN202221570509.6U patent/CN217873354U/en active Active
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