CN214617131U - Volute fan and sweeping robot - Google Patents
Volute fan and sweeping robot Download PDFInfo
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- CN214617131U CN214617131U CN202023330826.4U CN202023330826U CN214617131U CN 214617131 U CN214617131 U CN 214617131U CN 202023330826 U CN202023330826 U CN 202023330826U CN 214617131 U CN214617131 U CN 214617131U
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Abstract
The utility model discloses a spiral case fan and robot of sweeping floor, wherein, the spiral case fan includes: the device comprises a shell, an impeller, a circuit board and a driving motor; the shell is provided with an inner cavity, a motor mounting port communicated with the inner cavity and a mounting seat arranged on the periphery of the motor mounting port; the impeller is rotatably arranged in the inner cavity of the shell, and an installation gap is formed between the impeller and the volute; the circuit board is arranged on the mounting seat of the shell; the driving motor is fixed on the circuit board and penetrates through the motor mounting hole, and the driving motor is in driving connection with the impeller; and a water retaining part is arranged in the mounting gap and surrounds the motor mounting opening. The utility model discloses technical scheme can improve the waterproof performance of spiral case fan to prolong spiral case fan's whole life.
Description
Technical Field
The utility model relates to a robot technical field, in particular to spiral case fan and robot of sweeping floor.
Background
At present, a cleaning mechanism of the sweeping robot mostly adopts a volute fan, negative pressure is generated through rotation of the volute fan to suck dust and impurities into a dust box, and when the sweeping robot is in an environment with high air humidity or on a ground with water, air containing water vapor is sucked into a volute by the volute fan. In the volute fan of the current sweeping robot, an avoiding gap for the rotation of the impeller is inevitably reserved between the impeller and the volute casing, and air doped with water vapor flows to the motor and the electric control board from the avoiding gap between the impeller and the volute casing under the action of suction force of negative pressure, so that the motor and the electric control board are easily corroded and damaged, and the service life of the motor and the electric control board is shortened; the electric control board of the existing volute fan usually adopts three-proofing paint for water prevention, but the three-proofing paint can only play a role in a short period, is easy to age and fall off for a long time and loses the waterproof effect, and then cannot protect the electric control board.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a spiral case fan aims at improving spiral case fan's waterproof performance to improve spiral case fan's whole life.
In order to achieve the above object, the utility model provides a spiral case fan for robot of sweeping floor, include:
the shell is provided with an inner cavity, a motor mounting port communicated with the inner cavity and a mounting seat arranged on the periphery of the motor mounting port;
the impeller is rotatably arranged in the inner cavity of the shell, and an installation gap is formed between the impeller and the volute;
the circuit board is arranged on the mounting seat of the shell; and
the driving motor is fixed on the circuit board and penetrates through the motor mounting hole, and the driving motor is in driving connection with the impeller;
and a water retaining part is arranged in the mounting gap and surrounds the motor mounting opening.
Optionally, the water guard is disposed on the impeller.
Optionally, a groove is formed in the position, corresponding to the water blocking portion, of the shell, and the water blocking portion is partially inserted into the groove.
Optionally, a plurality of water baffles are arranged in the mounting gap and distributed along the radial direction of the impeller.
Optionally, at least one water retaining part is arranged on the impeller, and at least one water retaining part is arranged on the shell.
Optionally, the water blocking portion on the casing and the water blocking portion on the impeller are disposed close to each other.
Optionally, the water blocking portion on the casing and the water blocking portion on the impeller are disposed away from each other.
Optionally, a sealing ring is further connected between the impeller and the rotating shaft of the driving motor.
Optionally, a balancing ring is convexly arranged on a surface of the impeller facing the driving motor, and the balancing ring is used for keeping the impeller balanced during rotation.
The utility model also provides a robot of sweeping floor, including robot main part and above-mentioned embodiment the spiral case fan, the spiral case fan install in the robot main part.
The utility model discloses technical scheme is through being equipped with manger plate portion in the installation clearance between impeller and casing, and manger plate portion encircles the setting of motor installing port, and manger plate portion plays the effect of blockking to the air current that gets into the installation clearance, prevents to dope the air current that has steam from installation clearance direct inflow motor installing port department, avoids causing corrosion damage to driving motor and circuit board, can prolong the life of driving motor and circuit board.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a volute blower of the present invention;
FIG. 2 is a front view of the volute blower of FIG. 1;
FIG. 3 is a cross-sectional view of an embodiment of the volute blower of FIG. 2 taken along section A-A;
FIG. 4 is a cross-sectional view of another embodiment of the volute blower of FIG. 2 taken along section A-A;
FIG. 5 is a cross-sectional view of another embodiment of the volute blower of FIG. 2 taken along section A-A;
FIG. 6 is a cross-sectional view of another embodiment of the volute blower of FIG. 2 taken along section A-A;
FIG. 7 is a cross-sectional view of another embodiment of the volute blower of FIG. 2 taken along section A-A;
FIG. 8 is a cross-sectional view of another embodiment of the volute blower of FIG. 2 taken along section A-A;
figure 9 is a cross-sectional view of still another embodiment of the volute blower of figure 2 taken along section a-a.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Volute |
170 | |
| 10 | |
20 | |
| 110 | |
210 | |
| 120 | |
220 | |
| 130 | |
30 | |
| 140 | Volute casing |
40 | |
| 150 | Volute |
410 | |
| 160 | Groove | 50 | Driving motor |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a spiral case fan 1.
Specifically, the volute fan 11 is installed in a cleaning device of the sweeping robot and connected with a dust box, and the volute fan 11 rotates to form negative pressure to suck dust and impurities on the ground into the dust box.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an embodiment of a volute blower 1 of the present invention; FIG. 2 is a front view of the volute blower 1 of FIG. 1; FIG. 3 is a cross-sectional view of one embodiment of the volute blower 1 of FIG. 2 taken along section A-A;
in the embodiment of the present invention, the volute blower 1 includes a housing 10, an impeller 20, a circuit board 40, and a driving motor 50; as shown in fig. 1 to 3, the housing 10 is in a volute shape, and the housing 10 has an inner cavity 110, a motor mounting opening 120 connected to the inner cavity 110, and a mounting seat 130 disposed at the periphery of the motor mounting opening 120; the impeller 20 is rotatably installed in the inner cavity 110 of the casing 10, an installation gap 210 is formed between the impeller 20 and the casing 10, the installation gap 210 is communicated with the motor installation opening 120, the circuit board 40 is installed on the installation seat 130 of the casing 10, the driving motor 50 is fixed on the circuit board 40 and arranged to penetrate through the motor installation opening 120, and the driving motor 50 is in driving connection with the impeller 20.
Wherein, the impeller 20 is driven by the driving motor 50 to rotate, a negative pressure is formed in the inner cavity 110 of the housing 10, a suction force is formed to suck the air outside the housing 10 into the inner cavity 110 of the housing 10, the air sucked into the inner cavity 110 flows in the housing 10 under the action of the rotating centrifugal force of the impeller 20, as the mounting gap 210 exists between the impeller 20 and the housing 10, and the mounting gap 210 is communicated with the motor mounting opening 120, at least part of the air flow enters the mounting gap 210 and flows to the motor mounting opening 120 along the mounting gap 210, and blows to the driving motor 50 and the circuit board 40. In this way, the water blocking portion 30 is disposed in the mounting gap 210, and blocks the airflow entering the mounting gap 210, so as to reduce the airflow entering the motor mounting opening 120 from the mounting gap 210, and extend the stroke of the airflow passing through the mounting gap 210, so as to prevent the airflow doped with water vapor from directly flowing to the driving motor 50 and the circuit board 40 located at the motor mounting opening 120, and protect the driving motor 50 and the circuit board 40.
The utility model discloses technical scheme is through being equipped with manger plate portion 30 in the erection gap 210 between impeller 20 and casing 10, and manger plate portion 30 encircles the setting of motor installing port 120, and manger plate portion 30 plays the effect of blockking to the air current that gets into erection gap 210, prevents to be doped with the air current that has steam from erection gap 210 direct inflow motor installing port 120 department, avoids causing corrosion damage to driving motor 50 and circuit board 40, can prolong driving motor 50 and circuit board 40 life.
Further, the water-retaining portion 30 may be disposed on the impeller 20, referring to fig. 3, the casing 10 includes a volute upper cover 140 and a volute lower cover 150, the volute upper cover 140 is detachably connected to the volute lower cover 150, the water-retaining portion 30 is formed protruding from a surface of the impeller 20 facing the volute lower cover 150, and approaches the volute casing lower cover 150 along the axial direction of the impeller 20 so as to reduce the gap between the impeller 20 and the volute casing lower cover 150, the water blocking part 30 is arranged around the motor mounting opening 120, is in a circular ring-shaped tubular shape, so that an annular barrier is formed between the impeller 20 and the volute lower cover 150, and when the impeller 20 rotates to draw moisture-laden air into the housing 10, the water blocking part 30 blocks water vapor, which is difficult to pass through a narrow gap between the water blocking part 30 and the volute casing lower cover 150, therefore, most of water vapor is blocked outside the water blocking part 30, and the corrosion damage to the driving motor 50 and the circuit board 40 caused by directly blowing a large amount of water vapor onto the driving motor 50 and the circuit board 40 from the mounting gap 210 is avoided.
It can be understood that, in order to make the water-blocking portion 30 block the water vapor better, the groove 160 is disposed at the position of the one surface of the volute casing lower cover 150 facing the impeller 20 corresponding to the water-blocking portion 30, as shown in fig. 4, the corresponding water-blocking portion 30 on the impeller 20 is partially inserted into the groove 160, the water-blocking portion 30 is in clearance fit with the groove 160, such arrangement not only reduces the installation gap 210 between the impeller 20 and the casing 10, but also makes the water vapor flow path generate a zigzag path, thereby increasing the stroke of the water vapor passing through the installation gap 210, and the water vapor flowing through the water-blocking portion 30 needs to turn for multiple times, thereby weakening the motive power of the water vapor passing through the gap, and further reducing the amount of the water vapor flowing to the motor mounting opening 120 through the installation gap 210.
It is understood that in another embodiment of the volute casing fan 1, in order to further improve the water resistance, a plurality of water baffles 30, for example two, three or more than three, may be disposed in the installation gap 210 between the impeller 20 and the casing 10, and the plurality of water baffles 30 are distributed along the radial direction of the impeller 20. The water blocking portions 30 may be disposed on the blades 20, or may be disposed on the housing 10. In the embodiment, two water retaining portions 30 are disposed on the impeller 20, referring to fig. 5, two water retaining portions 30 are radially disposed along the impeller 20, two grooves 160 are disposed on the casing 10 in a one-to-one correspondence with the two water retaining portions 30, and the two water retaining portions 30 are partially inserted into the two corresponding grooves 160, so as to form two water retaining barriers, reduce the smoothness of water vapor passing through the installation gap 210, greatly increase the stroke of water vapor passing through the installation gap 210, and greatly weaken the power of water vapor passing through the installation gap 210. Of course, in other embodiments, referring to fig. 6, the housing 10 may not be provided with the groove 160, and both the water baffles 30 of the impeller 20 are disposed near the volute casing lower cover 150, so as to enhance the water vapor blocking effect of the water baffles 30.
It can be understood that, in other embodiments of the volute blower 1, the plurality of water-blocking portions 30 disposed in the mounting gap 210, at least one water-blocking portion 30 disposed on the impeller 20, at least one water-blocking portion 30 disposed on the casing 10, and the water-blocking portions 30 disposed on both the impeller 20 and the casing 10, so that gaps formed between the plurality of water-blocking portions 30 are bent, and the water vapor is required to be turned between the plurality of water-blocking portions 30 through the mounting gap 210 for multiple times, thereby further extending the stroke of the water vapor flowing through the packaging gap 210, and weakening the power of the water vapor flowing, thereby reducing the amount of the water vapor flowing out of the mounting gap 210.
In another embodiment of the volute blower 1, a plurality of water-retaining portions 30 are disposed in the installation gap 210 between the impeller 20 and the casing 10, wherein at least one water-retaining portion 30 is disposed on the impeller 20, at least one water-retaining portion 30 is disposed on the casing 10, and the water-retaining portion 30 on the casing 10 and the water-retaining portion 30 on the impeller 20 are disposed close to each other, in this embodiment, three water-retaining portions 30 are illustrated as an example, referring to fig. 7, one water-retaining portion 30 may be convexly disposed on the impeller 20, the water-retaining portion 30 on the impeller 20 may be disposed close to the casing 10 along the axial direction of the impeller 20, two water-retaining portions 30 may be convexly disposed on the casing 10, both the water-retaining portions 30 on the casing 10 may be disposed close to the impeller 20 along the axial direction of the casing 10, and the two water-retaining portions 30 on the casing 10 are respectively disposed at two sides of the water-retaining portion 30 of the impeller 20 and close to each other, so that the gap between the two adjacent water-retaining portions 30 is reduced, the stroke of vapor through the installation gap 210 is prolonged, the difficulty of vapor through the installation gap 210 is increased, and meanwhile, vapor is turned for many times, so that the power of vapor flowing is weakened. Of course, in other embodiments, two water-retaining portions 30 may be provided on the impeller 20, and one water-retaining portion 30 is provided on the casing 10, as shown in fig. 8, the two water-retaining portions 30 on the impeller 20 are respectively located at two sides of the water-retaining portion 30 of the casing 10 and are close to each other.
In yet another embodiment of the volute blower 1, a plurality of water-retaining portions 30 are disposed in an installation gap 210 between the impeller 20 and the volute, wherein at least one water-retaining portion 30 is disposed on the impeller 20, at least one water-retaining portion 30 is disposed on the casing 10, and the water-retaining portion 30 on the casing 10 and the water-retaining portion 30 on the impeller 20 are disposed away from each other, in this embodiment, taking two water-retaining portions 30 as an example, referring to fig. 9, the impeller 20 is convexly disposed with one water-retaining portion 30, the water-retaining portion 30 on the impeller 20 is disposed toward the casing 10 along an axial direction of the impeller 20, the casing 10 is convexly disposed with one water-retaining portion 30, the water-retaining portion 30 on the casing 10 is disposed toward the impeller 20 along the axial direction of the casing 10, and the water-retaining portion 30 on the casing 10 and the water-retaining portion 30 on the impeller 20 are disposed away from each other. So for form buffer slot 220 between two water retaining portions 30, during steam got into buffer slot 220 from first water retaining portion 30 gap, and because blockking of first water retaining portion 30 has reduced the velocity of flow, be difficult to simultaneously again through second water retaining portion 30, thereby be detained in buffer slot 220.
Further, in order to prevent the steam entering the casing 10 from entering the driving motor 50 through the output shaft of the driving motor 50 to corrode and damage the driving motor 50, referring to fig. 3, a sealing ring 410 is further connected between the impeller 20 and the rotating shaft of the driving motor 50 to prevent the steam from entering from a gap between the impeller 20 and the rotating shaft of the driving motor 50 to damage the driving motor 50.
Further, in order to keep the impeller 20 balanced during high-speed rotation and prevent the impeller 20 from rotating unstably and moving up and down due to the water blocking part 30 provided on the impeller 20, a balance ring 170 is formed at a position of the impeller 20 close to the driving motor 50 and protruding toward one surface of the driving motor 50, and as shown in fig. 3, the balance ring 170 is provided to stabilize the center of gravity of the impeller 20 on the axial line of the impeller 20 and prevent the impeller 20 from rotating unstably at high speed.
The utility model discloses still provide a robot of sweeping floor, this robot of sweeping floor includes robot main part and spiral case fan 1, and this spiral case fan 1's concrete structure refers to above-mentioned embodiment, because this robot of sweeping floor has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. Wherein, the volute fan 1 is arranged on the main body of the sweeping robot.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a spiral case fan for robot of sweeping floor, its characterized in that includes:
the shell is provided with an inner cavity, a motor mounting port communicated with the inner cavity and a mounting seat arranged on the periphery of the motor mounting port;
the impeller is rotatably arranged in the inner cavity of the shell, and an installation gap is formed between the impeller and the volute;
the circuit board is arranged on the mounting seat of the shell; and
the driving motor is fixed on the circuit board and penetrates through the motor mounting hole, and the driving motor is in driving connection with the impeller;
and a water retaining part is arranged in the mounting gap and surrounds the motor mounting opening.
2. The volute blower of claim 1, wherein the water dam is disposed on the impeller.
3. The volute blower of claim 2, wherein the housing has a recess formed therein at a location corresponding to the water dam, the water dam being partially inserted into the recess.
4. The volute blower of claim 1, wherein the plurality of water dams are disposed within the mounting gap and distributed radially of the impeller.
5. The volute blower of claim 4, wherein at least one of the water stops is disposed on the impeller and at least one of the water stops is disposed on the housing.
6. The volute blower of claim 5, wherein the water stop on the housing and the water stop on the impeller are disposed adjacent to one another.
7. The volute blower of claim 5, wherein the water stop on the housing and the water stop on the impeller are located remotely from each other.
8. The volute blower of any of claims 1-7, wherein a seal ring is further coupled between the impeller and the rotational shaft of the drive motor.
9. The volute blower of claim 1, wherein a face of the impeller facing the drive motor is convexly provided with a balancing ring for balancing the impeller during rotation.
10. A sweeping robot comprising a robot body and a volute blower as claimed in any one of claims 1 to 9 mounted on the robot body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023330826.4U CN214617131U (en) | 2020-12-30 | 2020-12-30 | Volute fan and sweeping robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023330826.4U CN214617131U (en) | 2020-12-30 | 2020-12-30 | Volute fan and sweeping robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214617131U true CN214617131U (en) | 2021-11-05 |
Family
ID=78434779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023330826.4U Active CN214617131U (en) | 2020-12-30 | 2020-12-30 | Volute fan and sweeping robot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214617131U (en) |
-
2020
- 2020-12-30 CN CN202023330826.4U patent/CN214617131U/en active Active
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