Pump with low-noise drainage chamber

Abstract

A pump with a low-noise drainage chamber comprises: a main housing; a stator; a partition plate; a rotor; an impeller; the lower shell is provided with an annular side wall, a drainage chamber is formed between the lower shell and the partition plate, and the lower shell is provided with a drainage channel extending outwards from the side face. The lower shell extends inwards from the annular side wall to form a lower drainage separation block; the partition plate is provided with an upper drainage partition block extending into the drainage chamber, and the upper drainage partition block abuts against the lower drainage partition block. The partition plate is provided with an arc-shaped flow guide part, the arc shape of the arc-shaped flow guide part corresponds to the annular side wall of the lower shell, and one end of the arc-shaped flow guide part is connected to the upper drainage partition block and used for guiding water to the drainage channel.

Description

Technical Field

[0001] The invention relates to a drainage pump, in particular to a pump with a low-noise drainage chamber. Background Art

[0002] Taiwan Patent No. M482715 discloses a drainage device for air conditioner with a low-pitched drainage shell. The drainage partition block is mainly arranged in the lower drainage shell. The two sides of the drainage partition block are gradually reduced inwards, and a tilted surface inclined backward is formed at the end edge to separate a receiving groove and a drainage groove. In this way, the drainage partition block can be used to guide the water flow during drainage, thereby reducing the water flow resistance and reducing the volume during drainage.

[0003] Although the aforementioned technology has the effect of reducing water flow resistance and reducing drainage volume, however, the shell part of the case that is covered above the drainage shell has no corresponding design, but is simply a flat cover structure. When a larger drainage flow is required, the drainage impeller and the space inside the drainage shell must be increased. In this way, if the shell above the drainage shell is not flat, there will be a turbulence problem. Therefore, the shell above the drainage shell needs to be modified in its structure to correspond to the drainage partition block, so as to still maintain the effect of reducing water flow resistance and reducing drainage volume. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a pump with a low-noise drainage chamber in response to the above-mentioned defects of the prior art. The pump utilizes the structure set by the partition to cooperate with the lower drainage partition block of the lower shell, thereby achieving a better diversion effect and having a better effect of reducing water flow resistance and reducing the drainage volume.

[0005] In order to achieve the above-mentioned object, the present invention provides a pump with a low-noise drainage chamber, comprising: a main housing; a stator disposed in the main housing; a partition plate, which is covered at the bottom of the main housing and has a cylindrical groove with an opening facing downward, and a ring rim located around the opening of the groove, the partition plate and the main housing together cover the stator, and the stator encloses the groove; a rotor, which is rotatably disposed in the main housing and is located in the groove and is enclosed by the stator; an impeller, which is disposed on the rotor and is located below the rotor; and a lower housing, which is disposed on the main housing and is located below the partition plate and has an annular side wall, a drainage chamber is formed between the lower housing and the partition plate so that the impeller is located in the drainage chamber, and the lower housing has There is a water suction port facing downward, and a drainage channel extending outward from the side; wherein, the lower shell body extends inwardly from the annular side wall to form a lower drainage partition block, the lower drainage partition block becomes narrower as it approaches its extended end, and the lower drainage partition block is located on one side of the drainage channel and serves as the starting point of the drainage channel; the partition plate has an upper drainage partition block extending into the drainage chamber, the upper drainage partition block becomes narrower as it extends toward its extended end, and the upper drainage partition block abuts against the lower drainage partition block; the partition plate has an arc-shaped guide member, which is arc-shaped and located in the drainage chamber, and its arc corresponds to the annular side wall of the lower shell body, and one end of the arc-shaped guide member is connected to the upper drainage partition block to guide water to the drainage channel.

[0006] The technical effects of the present invention are:

[0007] The present invention utilizes the arc-shaped flow guide member provided on the partition plate and the upper drainage partition block to cooperate with the lower drainage partition block of the lower shell body, which can achieve a better water diversion effect and has a better effect of reducing water flow resistance and reducing drainage volume.

[0008] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A three-dimensional diagram of a preferred embodiment of the present invention;

[0010] Figure 2 An exploded view of a preferred embodiment of the present invention;

[0011] Figure 3 For along Figure 1 Sectional view along line 3-3;

[0012] Figure 4 It is a partially exploded schematic diagram of a preferred embodiment of the present invention, showing the state of the interior of the lower shell and the lower part of the partition;

[0013] Figure 5Another partially exploded schematic diagram of a preferred embodiment of the present invention shows the state of the interior of the lower shell and the lower part of the partition;

[0014] Figure 6 A schematic diagram of a preferred embodiment of the present invention rotated by an angle;

[0015] Figure 7 For along Figure 6 Sectional view along section line 7-7;

[0016] Figure 8 A schematic diagram of another viewing angle and rotated at a certain angle of a preferred embodiment of the present invention;

[0017] Fig. 9 For along Figure 8 Sectional view along section line 9-9;

[0018] Fig.10 It is an inverted schematic diagram of a preferred embodiment of the present invention;

[0019] Fig.11 For along Fig.10 Sectional view along line 11-11.

[0020] Among them, the reference numerals

[0021] 10 Pumps with low noise discharge chamber

[0022] 11 Main shell

[0023] 13 Stator

[0024] 15 Partition

[0025] 151 tanks

[0026] 152 Ring Eaves

[0027] 153 arc guide

[0028] 154 guide surface

[0029] 16 Upper drainage partition block

[0030] 17 rotors

[0031] 19 Impeller

[0032] 21 Lower shell

[0033] 22 annular side wall

[0034] 221 lower drainage partition block

[0035] 24 Drainage Chamber

[0036] 26 water inlet

[0037] 28 drainage channels DETAILED DESCRIPTION

[0038] The structural principle and working principle of the present invention are described in detail below in conjunction with the accompanying drawings:

[0039] like Figures 1 to 11 As shown, the present invention illustrates a pump 10 with a low noise drainage chamber by a preferred embodiment, which is mainly composed of a main housing 11, a stator 13, a partition 15, a rotor 17, an impeller 19 and a lower housing 21, wherein:

[0040] The stator 13 is disposed in the main housing 11 .

[0041] The partition 15 is covered on the bottom of the main shell 11 and has a cylindrical groove 151 with an opening facing downward, and a ring rim 152 located around the opening of the groove 151. The partition 15 and the main shell 11 together cover the stator 13, and the stator 13 encloses the groove 151.

[0042] The rotor 17 is rotatably disposed in the main housing 11 and is located in the receiving groove 151 and surrounded by the stator 13 .

[0043] The impeller 19 is disposed on the rotor 17 and is located below the rotor 17 .

[0044] The lower shell 21 is disposed on the main shell 11 and below the partition 15, and has an annular side wall 22. A drainage chamber 24 is formed between the lower shell 21 and the partition 15 so that the impeller 19 is located in the drainage chamber 24. The lower shell 21 has a water suction port 26 facing downward and a drainage channel 28 extending outward from the side.

[0045] The technical features of this embodiment are:

[0046] The lower shell 21 extends inward from the annular side wall 22 to form a lower drainage partition block 221 . The lower drainage partition block 221 becomes narrower as it approaches the end of its extension. The lower drainage partition block 221 is located on one side of the drainage channel 28 and serves as the starting point of the drainage channel 28 .

[0047] The partition plate 15 has an upper drainage partition block 16 extending into the drainage chamber 24. The upper drainage partition block 16 becomes narrower as it extends toward the end thereof, and the upper drainage partition block 16 abuts against the lower drainage partition block 221. In this embodiment, the end of the lower drainage partition block 221 is rounded and gradually shrinks from bottom to top; the end of the upper drainage partition block 16 is rounded and gradually shrinks from top to bottom. In addition, the shape of the end of the upper drainage partition block 16 corresponds to the shape of the end of the lower drainage partition block 221.

[0048] The partition 15 has an arc-shaped flow guide 153, which is in the shape of a long arc and is formed integrally with the partition 15 and is located in the drainage chamber 24, and its arc corresponds to the annular side wall 22 of the lower shell 21. One end of the arc-shaped flow guide 153 is connected to the upper drainage partition block 16 to guide water (not shown) to the drainage channel 28. In actual implementation, the arc-shaped flow guide 153 can be configured to have a flow guide surface 154 and face obliquely downward. The arc-shaped flow guide 153 is higher than the lower drainage partition block 221, but not lower than the bottom edge of the upper drainage partition block 16, and a part of the arc-shaped flow guide 153 crosses over the drainage channel 28, and the rest of the arc-shaped flow guide 153 does not cross over the drainage channel 28 and is located outside the starting point of the drainage channel 28. The guide surface 154 is curved along the annular side wall 22 of the drainage chamber 24 to be in an arc shape, and the guide surface 154 is higher at a portion closer to the center of the drainage chamber 24 and lower at a portion closer to the annular side wall 22 .

[0049] In the above structure, the impeller 19 rotates to drive the water to flow in the following manner: the water in the drainage chamber 24 is driven to flow through the arc-shaped guide member 153 first, and then to the starting point of the drainage channel 28 and the upper drainage partition block 16 and the lower drainage partition block 221.

[0050] The structure of this embodiment has been described above. Next, the operation of this embodiment will be described.

[0051] like Figure 3 Cooperate Figures 4 to 11 As shown, when there is water in the drainage chamber 24 and drainage begins, the impeller 19 operates to drive the water to flow, and the water is driven by the impeller 19 in the drainage chamber 24 to form a vortex that rotates along the annular side wall 22. When the water flows through the arc-shaped guide member 153, since the guide surface 154 is inclined downward and arc-shaped, the water flow will flow smoothly along the guide surface 154 when guided by the guide surface 154, and will be pressed downward by the guide surface 154 and flow toward the drainage channel 28, thereby reducing noise and water flow resistance in the process. It can be seen that the arc-shaped guide member 153 can reduce noise and reduce water flow resistance.

[0052] When the water flows through the arc-shaped flow guide 153 and reaches the starting point of the drainage channel 28, it will be separated by the upper drainage partition block 16 and the lower drainage partition block 221, and a part of the water flows into the drainage channel 28 and is discharged outward, while the rest of the water flows back into the drainage chamber 24 and continues to rotate with the vortex. Since the upper drainage partition block 16 and the lower drainage partition block 221 are against each other, they provide a separation effect for the water flow together. In addition, the ends of the upper drainage partition block 16 and the lower drainage partition block 221 are both rounded and have a structure that tapers backward, which can further prevent the water flow from being disturbed when being separated, and the resistance is small, and it is not easy to generate noise.

[0053] As can be seen from the above, the present invention utilizes the arc-shaped guide member 153 set on the partition 15 and the upper drainage partition block 16 to cooperate with the lower drainage partition block 221 of the lower shell 21, which can achieve a better water diversion effect and has a better effect of reducing water flow resistance and reducing drainage volume.

[0054] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A pump with a low noise drainage chamber, comprising: a main housing; a stator disposed in the main housing; A partition plate is disposed on the bottom of the main housing and has a cylindrical groove with an opening facing downward, and a ring rim located around the opening of the groove. The partition plate and the main housing together cover the stator, and the stator encloses the groove; A rotor rotatably disposed on the main housing and located in the receiving slot and surrounded by the stator; an impeller disposed on the rotor and located below the rotor; and A lower shell is disposed on the main shell and below the partition, and has an annular side wall. A drainage chamber is formed between the lower shell and the partition so that the impeller is located in the drainage chamber. The lower shell has a water suction port facing downward and a drainage channel extending outward from the side. It is characterized in that The lower housing has a lower drainage partition block extending inwardly from the annular side wall, the lower drainage partition block becomes narrower as it approaches the end of its extension, and the lower drainage partition block is located at one side of the drainage channel and serves as the starting point of the drainage channel; The partition plate has an upper drainage partition block extending into the drainage chamber, the upper drainage partition block becomes narrower toward the end thereof, and the upper drainage partition block abuts against the lower drainage partition block; The partition has an arc-shaped guide member, which is arc-shaped and located in the drainage chamber, and its arc corresponds to the annular side wall of the lower shell. One end of the arc-shaped guide member is connected to the upper drainage partition block to guide water to the drainage channel.

2. The pump with a low noise drainage chamber according to claim 1, characterized in that The arc-shaped flow guide has a flow guide surface which is inclined downward. The arc-shaped flow guide is higher than the lower drainage partition block, and a part of the arc-shaped flow guide spans over the drainage channel, while the rest of the arc-shaped flow guide does not span over the drainage channel but is located outside the starting point of the drainage channel.

3. The pump with a low noise drainage chamber according to claim 2, characterized in that The guide surface is curved along the annular side wall of the drainage chamber to be in an arc shape, and the guide surface is higher at a portion closer to the center of the drainage chamber and lower at a portion closer to the annular side wall.

4. The pump with a low noise drainage chamber according to claim 1, characterized in that The arc-shaped flow guide is not lower than the bottom edge of the upper drainage partition block.

5. The pump with a low noise drainage chamber according to claim 1, characterized in that The end of the lower drainage partition block is in a rounded shape and gradually shrinks from bottom to top; the end of the upper drainage partition block is in a rounded shape and gradually shrinks from top to bottom.

6. The pump with a low noise drainage chamber according to claim 1, characterized in that The arc-shaped flow guide is in the shape of an elongated arc and is formed integrally with the partition.

7. The pump with a low noise drainage chamber according to claim 1, characterized in that The impeller rotates to drive the water to flow in a manner that the water in the drainage chamber is driven to flow through the arc-shaped guide member first, and then to the starting point of the drainage channel and the upper drainage partition block and the lower drainage partition block.

8. The pump with a low noise drainage chamber according to claim 1, characterized in that The shape of the end of the upper drainage dividing block corresponds to the shape of the end of the lower drainage dividing block.

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