TWI600862B - Drainage impeller - Google Patents

Description

Drainage impeller

The invention relates to a drainage device, and in particular to a drainage impeller.

The drainage motor for cold air generates noise, which is caused by the resistance generated by the impeller striking the air bubbles entrained in the condensate, causing vibration, or the sound of the air bubble caused by the impact of the collision; therefore, if the impeller is used to reduce the water When the impact force on the bubble is used, the noise can be effectively reduced.

Please refer to Taiwan Patent No. I405907, which relates to a drainage pump having an opening provided at a lower end portion of the pump chamber and a discharge port disposed at a side of the pump chamber; the rotating blade has a small size a diameter blade having a columnar shaft portion and a plurality of blade portions projecting from the shaft portion in a radial direction, the bottom portion of the small diameter blade being formed to be orthogonal to an axis of the shaft portion and located in a relative The projected area of the bottom surface of the small diameter blade to the end surface of the opening is set to be in a range of 60% to 70% with respect to the inner diameter area of the opening. Thereby, the amount of suction of the condensed water can be suppressed and the noise generated during use can be reduced.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a drainage impeller which increases the efficiency of water repelling and at the same time reduces the generation of bubbles.

In order to achieve the above object, the present invention provides a drainage impeller comprising: an annular concave disk having a disk body and a ring wall, the ring wall being protruded upward from a periphery of the disk body; a mandrel Passing through the disk body and forming a first-class channel therebetween, the top end of the mandrel is located above the disk body and is used for connecting a driving shaft of a motor, and the bottom end of the mandrel is located below the disk body, The mandrel above the flow channel extends radially outwardly from the plurality of support ribs, the bottom of the plurality of support ribs is connected to the disk body, and the plurality of support ribs are partially exposed through the flow channel below the disk body and connected thereto a mandrel, the outer end of the plurality of support ribs being connected to the inner wall of the ring wall; wherein the mandrel below the disk body is a polygonal cylinder having a plurality of planes, the complex plane The two sides are connected to each other and are respectively chamfered at the junction to form a narrow face, and each of the support ribs below the disk body is connected to each of the planes and each of the elongated faces.

Thereby, the drainage impeller of the present invention can achieve the effect of increasing the efficiency of water-repellent by the planes of the polygonal cylinder, and the arrangement of each of the narrow faces can achieve the effect of reducing bubble generation.

In order to explain in detail the technical features of the present invention, the following embodiments are described with reference to the following drawings, in which:

As shown in FIG. 1 to FIG. 4, a first embodiment of the present invention provides a drain impeller 10, which is mainly composed of an annular concave disk 11 and a mandrel 21, wherein:

The annular concave disk 11 has a disk body 13 and a ring wall 15 which is protruded upward from the periphery of the disk body 13.

The mandrel 21 passes through the disk body 13 and forms a first-class passage 23 between the two 21, 13. The top end of the mandrel 21 is located above the disk body 13 and is used to connect a drive shaft 99 of a motor. The bottom end of the shaft 21 is located below the disk body 13. The mandrel 21 above the flow channel 23 extends radially outwardly from the plurality of support ribs 25. The bottom of the plurality of support ribs 25 is connected to the disk body 13, and A plurality of support ribs 25 are partially exposed through the flow passage 23 below the disk body 13 and connected to the mandrel 21, and the outer ends of the plurality of support ribs 25 are connected to the inner wall of the ring wall 15.

The mandrel 21 is located below the disk body 13 and is a polygonal cylinder 27. In the first embodiment, the polygonal cylinder 27 is a regular polygonal cylinder, and the triangular cylinder is taken as an example. . The polygonal cylinder 27 has a plurality of planes 28 which are connected to each other and are respectively chamfered at the junction to form a narrow face 29, and each of the support ribs 25 below the disk body 13 is connected to each of the planes 28 And each of the narrow faces 29. The present invention has the function of water repellency by the structure of the complex plane 28 described above, and each of the elongated faces 29 allows the present invention to be less prone to bubble generation upon rotation.

In addition, in the first embodiment, the bottom of each of the support ribs 25 connected to each of the planes 28 is spaced apart from the bottom edge of the polygonal cylinder 27 by a predetermined distance; and each of the support ribs 25 connected to each of the elongated faces 29 The system continues to extend to the bottom edge of the polygonal cylinder 27. As shown in FIG. 3, by using the structure, the thickness of each of the support ribs 25 of each of the elongated faces 29 can be utilized to increase the area of contact between the flat surfaces 28 and the condensed water, thereby increasing the efficiency of water transfer. It is avoided that the present invention is installed in a large space, and the contact surface with the condensed water is insufficient to degrade the water-repellent efficiency. However, depending on the size of the use space, it is determined whether it is suitable to set the polygonal cylinder 27 to this type. If the complex support rib 25 is not set to this type, the water-removing efficiency achieved is sufficient, This type of setting is required. Therefore, the connection positions of the support ribs 25 described herein to the respective planes 28 and the respective elongated faces 29 are not necessarily limited.

When each of the support ribs 25 is in the above-described configuration, as shown in FIGS. 3 and 4, the surface of each of the support ribs 25 of each of the elongated faces 29 extending to the bottom edge of the polygonal cylinder 27 is a curved surface; and a top surface of each of the support ribs 25 extending from each of the elongated faces 29 has a planar shape; thereby the polygonal cylinder 27 can be lowered in collision with the water flow during rotation Thereby reducing the possibility of bubble generation.

The structure of the first embodiment of the present invention has been described above, and the state of use of the first embodiment will be described next.

Referring to FIGS. 1 to 5, the drain impeller 10 of the present invention is disposed in a drain motor 100 in use, the top end of the mandrel 21 is coupled to the drive shaft 99 of the motor, and the drain impeller 10 It is located in a sump 98. When the drain motor drives the drain impeller 10, the plurality of support ribs 25 will drive the condensed water in the sump 98 and form a vortex, since the polygonal cylinder 27 has a complex plane. 28 can also provide a pushing force to the condensed water, increasing the efficiency of water-removing, and at the same time, by the structure of the plurality of narrow faces 29, when the eddy current is formed, the resistance to the water flow formed by the condensed water is small, so bubbles are not easily generated. The condensed water in the sump 98 will be vortexed to discharge the condensed water from a drain port 97 to complete the drainage work.

Accordingly, it can be seen from the above that the present invention can achieve the effect of increasing the efficiency of water-removing by the arrangement of the planes 28 of the polygonal cylinders 27, and the arrangement of the narrow faces 29 can reduce the effect of bubble generation. .

However, in addition to the above structure, as shown in FIG. 4A, the top surface of the cross-sectional shape of each of the support ribs 25 extending from each of the elongated faces 29 can be curved, and the bubble generation is also reduced. efficacy. When each of the supporting ribs 25 extending from each of the elongated faces 29 is in the structural form, the center position of the top surface of each of the supporting ribs 25 of each of the elongated faces 29 corresponds to the polygonal column The axis of the body 27 has the same position; it can be different.

Next, referring to FIG. 6, a drainage impeller 10' according to a second embodiment of the present invention is mainly similar to the first embodiment disclosed above, except that:

Each of the support ribs 25' connected to each of the planes 28' extends continuously to the bottom edge of the polygonal cylinder 27'; each of the support ribs 25' connected to the elongated surface 29' extends continuously to the polygonal cylinder The bottom edge of 27', and the width of the plurality of support ribs 25' of the plane 28' from top to bottom is narrowed from wide to high and low from high to low. By the structure of each of the support ribs 25' of each of the planes 28', the complex plane 28' has a buffering effect on the collision force of the condensed water when the water is dialed, thereby reducing the possibility of bubble generation.

The remaining structure of the second embodiment and the achievable effects are the same as those of the first embodiment, and will not be further described.

10‧‧‧Draining impeller
11‧‧‧ annular concave plate
13‧‧‧ dish
15‧‧‧ Ring wall
21‧‧‧ mandrel
23‧‧‧Flow channel
25‧‧‧Support ribs
27‧‧‧Polygonal cylinder
28‧‧‧ plane
29‧‧‧Slong face
97‧‧‧Drainage
98‧‧‧ sink
99‧‧‧ drive shaft
100‧‧‧Drain motor
10'‧‧‧Draining impeller
13'‧‧‧ dish
25'‧‧‧Support ribs
27'‧‧‧Polygon cylinder
28'‧‧‧ plane
29'‧‧‧Slim long face

Fig. 1 is a perspective view showing a first embodiment of the present invention. Fig. 2 is another perspective view of the first embodiment of the present invention. Figure 3 is a partial side elevational view of the first embodiment of the present invention. Fig. 4 is a bottom view of the first embodiment of the present invention, and Fig. 4A is a modification of the polygonal bottom column. Fig. 5 is a view showing the state of use of the first embodiment of the present invention. Figure 6 is a perspective view of the bottom view of the second embodiment of the present invention.

10‧‧‧Draining impeller

11‧‧‧ annular concave plate

13‧‧‧ dish

15‧‧‧ Ring wall

21‧‧‧ mandrel

23‧‧‧Flow channel

25‧‧‧Support ribs

27‧‧‧Polygonal cylinder

28‧‧‧ plane

Claims (10)

A drainage impeller includes: an annular concave disk having a disk body and a ring wall, wherein the ring wall is protruded upward from a periphery of the disk body; a core shaft passing through the disk body and both Forming a first-class passage between the top end of the mandrel and connecting a drive shaft of a motor, and the bottom end of the mandrel is located below the disc body, and the mandrel is located radially above the flow passage Extending the plurality of support ribs, the bottom of the plurality of support ribs is connected to the disk body, and the plurality of support ribs are partially exposed through the flow channel below the disk body and connected to the mandrel, the outer ends of the plurality of support ribs Attached to the inner wall of the ring wall; the mandrel located under the disk body is a polygonal cylinder having a plurality of planes, the plurality of planes being connected to each other at the junction The chamfer forms a narrow face, and each of the support ribs below the disk body is coupled to each of the planes and each of the elongated faces. The drainage impeller according to claim 1, wherein: the bottom of each of the support ribs connected to each of the planes is spaced apart from a bottom edge of the polygonal cylinder by a predetermined distance; and each of the support ribs connected to each of the elongated faces Continue to extend to the bottom edge of the polygonal cylinder. The drainage impeller according to claim 2, wherein each of the support ribs of each of the elongated faces extends to a surface of the bottom edge of the polygonal cylinder as a curved surface. A drainage impeller according to claim 3, wherein a top surface of each of the support ribs extending across each of the elongated faces has a planar shape. According to the drainage impeller of claim 3, wherein the top surface of each of the support ribs extending from each of the elongated faces has an arc shape. The drainage impeller according to the fifth aspect of the patent application, wherein: a center position corresponding to a top surface of each of the support ribs of each of the elongated faces is the same as an axial position of the polygonal cylinder. The drainage impeller according to claim 5, wherein a position of a center of the top surface of each of the support ribs of each of the elongated faces is different from an axial position of the polygonal cylinder. The drainage impeller according to claim 1, wherein: each of the support ribs connected to each of the planes extends to a bottom edge of the polygonal cylinder; and each of the support ribs connected to the elongated surface extends to the bottom The bottom edge of the polygonal cylinder. According to the drainage impeller of claim 8, wherein: the width of the plurality of support ribs in the plane from top to bottom is narrowed from wide to high and low from high to low. According to the drainage impeller of claim 1, wherein the polygonal column system is a regular polygonal cylinder.