Pump having low noise drain chamber

Abstract

To provide a pump having a low noise drain chamber.SOLUTION: A pump having a low noise drain chamber has a housing, a stator, a spacer, a rotor, an impeller, and a holder. The holder has a drain chamber formed between an annular side wall and the spacer, a drain passage extending from a side surface to the outside, and a lower drain flow dividing block which is formed extending from the annular side wall to the back side. The spacer has an upper drain flow dividing block extending toward the drain chamber. The upper drain flow dividing block is arranged so as to contact with the lower drain flow dividing block. The spacer further has an arc flow leading part. The arc flow leading part has a shape corresponding to the annular side wall of the holder and guides water to the drain passage by one end being connected to the upper drain flow dividing block.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a drainage pump, and more particularly to a pump having a low noise drainage chamber. [Background technology]

[0002] In a drainage device having a low-tone drainage housing for air conditioning equipment disclosed in Patent Document 1, a drainage diversion block is disposed below the drainage housing, and the space below the drainage housing is divided into a storage groove and a drainage groove by gradually narrowing the space between both sides toward the back and forming a backward-facing inclined surface at the end. Due to the above-mentioned structural features, when draining, the drainage diversion block can reduce the resistance of the water flow and the noise generated during drainage by guiding and releasing the water flow.

[0003] Although Patent Document 1 can achieve the effect of reducing the resistance of the water flow and the noise generated during drainage, the cover covering the upper part of the drainage housing is not designed according to the situation or needs, but has a flat covering structure. When a relatively large drainage flow rate is required, it is necessary to increase the internal space of the drainage impeller and the drainage housing. On the other hand, if the cover above the drainage housing is not flat, water flow obstruction will occur. In addition, if it is desired to maintain the effect of reducing the resistance of the water flow and the noise generated during drainage, it is necessary to adjust the structure of the cover above the drainage housing according to the drainage diversion block. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Taiwan Utility Model Patent No. M482715 Summary of the Invention [Problem to be solved by the invention]

[0005] The main objective of the present invention is to provide a pump with a low-noise drainage chamber. The pump with a low-noise drainage chamber according to the present invention improves the flow guide effect by combining the spacer structure and the drainage diversion block at the bottom of the holder, thereby reducing the resistance of the water flow and the noise generated during drainage. [Means for solving the problem]

[0006] A pump having a low noise drain chamber for solving the above problems includes a housing, a stator, a spacer, a rotor, an impeller, and a holder. The stator is disposed in the housing. The spacer is disposed covering the bottom of the housing, and has a cylindrical storage groove with a downward opening and an annular edge located around the opening of the storage groove. The stator is covered by the spacer and the housing, and is disposed to surround the storage groove. The rotor is rotatably disposed in the housing and the storage groove and is surrounded by the stator. The impeller is disposed below the rotor. The holder is disposed below the housing and the spacer, and a drain chamber is formed between the holder and the spacer. The impeller is stored in the drain chamber. The holder has an annular side wall, a downward suction port, and a drain passage extending from the side to the outside. The holder further has a lower drainage diversion block formed extending from the annular side wall toward the back. The lower drainage diversion block is gradually narrowed from the tip to the end. The lower drainage diversion block is disposed to be located on one side of the drainage passage as the starting point of the drainage passage. The spacer has an upper drainage diversion block extending toward the drainage chamber. The upper drainage diversion block is tapered from its leading end to its trailing end. The upper drainage diversion block is positioned to abut the lower drainage diversion block. The spacer further has an arcuate diversion portion positioned within the drainage chamber. The arcuate diversion portion is shaped to correspond to the annular sidewall of the holder and has one end connected to the upper drainage diversion block to direct water into the drainage passageway.

[0007] To summarize the above, the present invention improves the water guiding effect by combining the arc-shaped guiding portion and upper drainage diversion block of the spacer with the lower drainage diversion block of the holder, and can effectively reduce the water flow resistance and the noise generated during drainage. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a pump having a low noise drain chamber according to one embodiment of the present invention; [Diagram 2] FIG. 2 is an exploded perspective view of a pump having a low noise drain chamber according to one embodiment of the present invention; [Diagram 3] FIG. 2 is a cross-sectional view taken along line 1-1 in FIG. [Figure 4] FIG. 2 is a perspective view showing the internal structure of a holder and the bottom structure of a spacer of a pump having a low noise drainage chamber according to an embodiment of the present invention; [Diagram 5] FIG. 2 is a perspective view showing the internal structure of the holder and the bottom structure of the spacer of the pump having a low-noise drainage chamber according to one embodiment of the present invention, viewed from another angle. [Figure 6] FIG. 2 is a rotated perspective view of a pump having a low noise drain chamber according to one embodiment of the present invention; [Figure 7] FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. [Figure 8] FIG. 2 is a perspective view of a pump having a low noise drain chamber according to an embodiment of the present invention, viewed from another angle in a rotated view. [Figure 9] 9 is a cross-sectional view taken along line 9-9 in FIG. 8. [Figure 10] FIG. 2 is a schematic diagram showing a pump having a low noise drain chamber in an inverted state according to an embodiment of the present invention. [Figure 11] 11 is a cross-sectional view taken along line 11-11 in FIG. 10. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pump having a low noise drain chamber according to the present invention will now be described with reference to the drawings.

[0010] (One embodiment) As shown in FIGS. 1 to 11, a pump 10 having a low noise drain chamber according to one embodiment of the present invention is composed of a housing 11, a stator 13, a spacer 15, a rotor 17, an impeller 19 and a holder 21.

[0011] The stator 13 is disposed within the housing 11 .

[0012] The spacer 15 is disposed over the bottom of the housing 11, and has a cylindrical storage groove 151 with a downward opening, and an annular edge 152 positioned around the opening of the storage groove 151. The stator 13 is covered by the spacer 15 and the housing 11, and is disposed so as to surround the storage groove 151.

[0013] The rotor 17 is rotatably disposed within the housing 11 and the storage groove 151 and is surrounded by the stator 13 .

[0014] The impeller 19 is disposed below the rotor 17 .

[0015] The holder 21 is disposed below the housing 11 and the spacer 15, and the space between the holder 21 and the spacer 15 forms a drain chamber 24. The impeller 19 is stored in the drain chamber 24. The holder 21 has an annular side wall 22, a downward suction port 26, and a drain passage 28 extending from the side to the outside.

[0016] The technical features of the present invention are as follows:

[0017] The holder 21 further has a lower drainage diversion block 221 formed extending from the annular side wall 22 toward the rear. The lower drainage diversion block 221 is gradually narrowed from the front end to the rear end. The lower drainage diversion block 221 is disposed to be located on one side of the drainage passage 28 as the starting point of the drainage passage 28.

[0018] The spacer 15 has an upper drainage diversion block 16 that extends towards the drainage chamber 24. The upper drainage diversion block 16 is tapered from its leading end to its trailing end and is disposed to abut the lower drainage diversion block 221. In this embodiment, the lower drainage diversion block 221 has an arc-shaped end and is disposed to taper back from bottom to top. The upper drainage diversion block 16 has an arc-shaped end and is disposed to taper back from top to bottom. The shape of the end of the upper drainage diversion block 16 corresponds to the shape of the end of the lower drainage diversion block 221.

[0019] The spacer 15 further has an elongated arc-shaped guiding portion 153. The arc-shaped guiding portion 153 is molded integrally with the spacer 15. The arc-shaped guiding portion 153 is located in the drainage chamber 24, and its shape corresponds to the annular side wall 22 of the holder 21. One end of the arc-shaped guiding portion 153 is connected to the upper drainage diversion block 16 to guide water (not shown in the figure) to the drainage passage 28. In this embodiment, the arc-shaped guiding portion 153 has a guiding surface 154 that extends downward and obliquely. The arc-shaped guiding portion 153 is higher than the lower drainage diversion block 221 and exceeds the bottom of the upper drainage diversion block 16. A part of the arc-shaped guiding portion 153 spans above the drainage passage 28, and another part does not span above the drainage passage 28 and is located outside the starting point of the drainage passage 28. The guiding surface 154 is arranged in an arc along the annular side wall 22 of the drainage chamber 24, and the closer to the center of the drainage chamber, the lower the part corresponding to the annular side wall 22 is.

[0020] In this embodiment, when the impeller 19 rotates to cause the water to flow, the water in the drain chamber 24 flows through the arc-shaped guide portion 153 to the starting point of the drain passage 28, the upper drain diversion block 16, and the lower drain diversion block 221.

[0021] The above is a description of the structure of this embodiment. Next, the operation of this embodiment will be described.

[0022] As shown in Figures 3 and 4 to 11, when the drainage operation of the water in the drain chamber 24 starts, the impeller 19 rotates to move the water. The rotation of the impeller 19 causes the water in the drain chamber 24 to swirl and flow along the annular side wall 22. Since the flow guide surface 154 is an arcuate surface extending obliquely downward, when the water flows through the arcuate flow guide portion 153, the water is guided by the flow guide surface 154 and flows along the flow guide surface 154, and at the same time, is forced to flow downward into the drain passage 28. The above-mentioned structural features can reduce noise and water flow resistance during the process of moving the water. In other words, the arcuate flow guide portion 153 can reliably reduce noise and water flow resistance.

[0023] When water flows through the arc-shaped guide section 153 and reaches the starting point of the drain passage 28, it is diverted by the upper drain diversion block 16 and the lower drain diversion block 221, and some of the water flows through the drain passage 28 and out, while the other water flows back into the drain chamber 24, swirling and flowing. The upper drain diversion block 16 and the lower drain diversion block 221 abut against each other to produce a diversion effect. The upper drain diversion block 16 and the lower drain diversion block 221 are gradually tapered in size from the front to the rear, and the rear end is arc-shaped, which can reduce vibration, resistance and noise when diverting water.

[0024] To summarize the above, the present invention improves the water guiding effect by combining the arc-shaped guiding portion 153 of the spacer 15 and the upper drainage diversion block 16 with the lower drainage diversion block 221 of the holder 21, and can effectively reduce the water flow resistance and the noise generated during drainage.

[0025] As described above, the present invention is not limited to the above-described embodiment, and can be embodied in various forms without departing from the spirit of the invention. [Explanation of symbols]

[0026] 10. Pump with low noise drainage chamber 11. Housing 13 Stator 15 Spacer 151 Storage Groove 152 Circular edge 153 Arc-shaped flow guide section 154 Flow guide surface 16 Upper drainage divider block 17 Rotor 18 Impeller 21 Holder 22 Annular side wall 221 Lower drainage diversion block 24 Drainage chamber 26 Intake port 28 Drain passage

Claims

1. The rotor includes a housing, a stator, a spacer, a rotor, an impeller, and a holder. The stator is disposed within the housing, The spacer is disposed over a bottom of the housing and has a cylindrical storage groove with a downward opening and an annular edge located around the opening of the storage groove; the stator is covered with the spacer and the housing and is disposed so as to surround the storage groove; The rotor is rotatably disposed within the housing and the storage groove and is surrounded by the stator; The impeller is disposed below the rotor, The holder is disposed below the housing and the spacer to define a drainage chamber between the holder and the spacer; The impeller is housed within the drain chamber; The holder has an annular side wall, a downward suction port, and a drain passage extending from the side to the outside, The holder further has a lower drainage diversion block extending from the annular side wall toward the rear, the lower drainage diversion block being gradually narrowed from its front end to its rear end, and being disposed to be located on one side of the drainage passage as the starting point of the drainage passage; the spacer has an upper drainage diversion block extending toward the drainage chamber, the upper drainage diversion block tapering from its leading end to its trailing end and positioned to abut against the lower drainage diversion block; The spacer further includes an arc-shaped guide portion located within the drainage chamber, the arc-shaped guide portion having a shape corresponding to the annular side wall of the holder, and one end of the arc-shaped guide portion being connected to the upper drainage diversion block to guide water to the drainage passage. A pump with a low noise drain chamber.

2. The arc-shaped flow guide portion has a flow guide surface that extends obliquely downward, A pump with a low noise drainage chamber as described in claim 1, characterized in that the arcuate flow guide portion is higher than the lower drainage diversion block, with a portion spanning above the drainage passage and another portion not spanning above the drainage passage and located outside the starting point of the drainage passage.

3. A pump with a low noise drainage chamber as described in claim 2, characterized in that the flow guide surface is arranged in an arc along the annular side wall of the drainage chamber, and the closer to the center of the drainage chamber, the lower the portion corresponding to the annular side wall.

4. 2. The low noise pump having a drain chamber as claimed in claim 1, wherein said arcuate guide portion extends beyond the bottom of said upper drain diverter block.

5. The lower drainage / diverting block has an end portion in a circular arc shape and is arranged to gradually retreat from bottom to top; 2. The low noise pump with a drain chamber as claimed in claim 1, wherein the upper drainage dividing block has an end portion in the shape of a circular arc and is arranged to gradually retreat from top to bottom.

6. 2. The low noise pump having a drain chamber as claimed in claim 1, wherein said arc-shaped flow guide portion is an elongated arc shape and is molded integrally with said spacer.

7. 2. A pump with a low-noise drainage chamber as described in claim 1, characterized in that when the impeller rotates to cause water to flow, the water in the drainage chamber flows through the arc-shaped guide portion to the starting point of the drainage passage, the upper drainage diversion block, and the lower drainage diversion block.

8. 2. The pump having a drain chamber with low noise as claimed in claim 1, wherein the shape of the end portion of the upper drainage diverter block corresponds to the shape of the end portion of the lower drainage diverter block.

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