CN209908783U - Drainage pump with sound attenuation shell - Google Patents

Abstract

A drain pump having a sound dampening housing, comprising: a lower housing; a main housing; a water discharge blade; a motor; and a cover body, cover and locate the main casing; the bottom plate of the main shell extends upwards to form a plurality of partition walls and a plurality of baffle plates, a gap is formed between every two partition walls at a preset distance, the partition walls extend outwards and obliquely along one edge of each gap to form a plurality of guide plates, and each guide plate and the partition wall at the other edge of the corresponding gap are at a preset distance to form a flow channel with an outward opening; each baffle is positioned between each gap and the through hole; the main shell is provided with an outer wall, an outer ring area is formed between the outer wall and the cylindrical structure and surrounds the cylindrical structure formed by the partition walls, and the outer wall is provided with a plurality of overflow holes.

Description

Drainage pump with sound attenuation shell

Technical Field

The present invention relates to a drainage device, and more particularly to a drainage pump with a noise reduction casing for an air conditioner.

Background

Chinese patent No. CN 104514725a discloses a drain pump for an air conditioner, which is mainly characterized in that a lower housing of a motor has a cover, a cylindrical outer cylinder part and an inner cylinder part for supporting the motor, and a drain slit provided in the outer cylinder part has a guide member for guiding residual water to the outside; the above-mentioned prior art patent also discloses that the drainage slit of the lid portion has a guide member for guiding the remaining water outward. Although the outer cylinder part can shield the inner cylinder gap of the inner cylinder part, thereby blocking part of the noise of the motor operation, the drainage path of the case is too long, and the difficulty of draining the residual water is increased.

Taiwan patent No. I612221 discloses a drainage pump for an air conditioner, which is characterized in that a plurality of gaps are formed in a cylindrical body of a lower housing of a motor, and a flow guide plate crossing the gaps forms an outward flow channel, thereby achieving the effect of shortening a drainage path. However, although the drainage path is shortened in this technique, it is found in practical use that although the baffle of this case can block the sound in the cylindrical body portion from the front, the sound is still transmitted outward through the plurality of slits, and the noise reduction effect is still limited.

SUMMERY OF THE UTILITY MODEL

In the prior art, the drain pump housing with noise reduction and noise reduction effects has a longer drain path, and the drain pump housing with a short drain path has a higher noise. Therefore, the prior art can not simultaneously solve the problems of noise reduction and drainage path shortening.

In order to solve the problem, the utility model provides a drain pump with amortization casing, its effect that can compromise the amortization noise reduction and shorten the drainage route. The utility model provides a drain pump with amortization casing includes: a lower shell, wherein the bottom of the lower shell is provided with a water suction port, and the side surface of the lower shell is provided with a water discharge port; a main shell, which is cylindrical in nature and is arranged above the lower shell, a water drainage chamber is formed between the main shell and the lower shell, the water suction port and the water drainage port are both communicated with the water drainage chamber in space, and the main shell is provided with a motor accommodating chamber and an overflow accommodating chamber; the drainage chamber is internally provided with a drainage blade, a motor is accommodated in the motor accommodating chamber, the overflow accommodating chamber is positioned below the motor accommodating chamber, the main shell is provided with a bottom plate, the bottom plate is provided with a through hole and is communicated with the drainage chamber in space, and the drainage blade is connected with a driving shaft of the motor through the through hole; and a cover body, cover and locate the main casing, and cover the motor and hold the room; the main shell is provided with a bottom plate, a plurality of through holes, a plurality of baffle walls and a plurality of guide plates, wherein the bottom plate of the main shell extends upwards to form a plurality of baffle walls and is positioned in the overflow containing chamber, the baffle walls are in an arc shape and surround the through holes to form a cylindrical structure, a gap is formed between every two baffle walls at a preset distance, the gaps formed between the baffle walls are arranged in an equiangular mode relative to the axis of the cylindrical structure, the baffle walls extend outwards and obliquely along one edge of each gap to form a plurality of guide plates, each guide plate spans each gap and extends to the other edge of each gap, each guide plate is separated from the baffle wall at the other edge of each gap at a preset distance to form a flow channel which is opened outwards, and the space surrounded by the baffle walls is communicated with the outside in space through the gaps and the flow channels; a plurality of baffles extend upwards from the bottom plate of the main shell, each baffle is positioned between each gap and the through hole corresponding to each gap, and one baffle and the corresponding gap are separated by a preset distance and can not seal the gap; the main shell body is provided with an outer wall, an outer ring area is formed between the outer wall and the cylindrical structure and surrounds the cylindrical structure formed by the partition walls, the outer wall is provided with a plurality of overflow holes, and the bottom ends of the hole edges of the overflow holes are positioned on the bottom plate of the main shell body and are communicated with the outer ring area in space.

Borrow by above-mentioned structure, the utility model discloses borrow by the multiple structure that blocks sound of outer wall, baffle and guide plate, can provide good noise reduction effect.

Further, if will the utility model discloses a spillway hole sets up to be close to in each this guide plate, and what be close to here indicates, and among two adjacent this guide plates of this spillway hole, more close to in one of them this guide plate, then under this situation, the utility model discloses will more shorten the runner than prior art, let water discharge more easily. Therefore, such an arrangement can make the utility model have the dual effects of shortening the flow channel and reducing the noise, and has an improvement in the efficiency compared with the prior art.

Drawings

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded view of a preferred embodiment of the present invention.

Fig. 3 is a partial exploded view of a preferred embodiment of the present invention, mainly showing the internal structure of the main housing.

Fig. 4 is a partial component view of a preferred embodiment of the present invention, mainly showing the bottom surface of the motor.

Fig. 5 is a top view of a portion of the components of a preferred embodiment of the present invention, showing the internal structure of the main housing.

Fig. 6 is a cross-sectional view taken along line 6-6 of fig. 5.

Wherein, the reference numbers:

10 drain pump with sound dampening housing

11 lower casing

12 water suction port

14 drainage outlet

18 drainage chamber

19 drainage blade

21 main casing

211 base plate

212 perforation

213 Locker block

22 motor chamber

23 Motor

232 cavity

24 overflow containing chamber

25 baffle plate

26 partition wall

261 baffle

262 convex column

27 gap

271 flow channel

28 outer wall

281 overflow hole

29 outer ring region

31 cover body

313 hook part

Detailed Description

To illustrate the technical features of the present invention in detail, the following preferred embodiments are described in conjunction with the drawings, wherein:

as shown in fig. 1 to 6, a drain pump 10 with a sound-deadening shell according to a preferred embodiment of the present invention mainly comprises a lower shell 11, a main shell 21 and a cover 31, wherein:

the lower housing 11 has a suction port 12 formed at the bottom and a discharge port 14 formed at the side.

The main housing 21 is substantially cylindrical, is disposed above the lower housing 11, and forms a drainage chamber 18 with the lower housing 11, the water suction port 12 and the drainage port 14 are both spatially communicated with the drainage chamber 18, and the main housing 21 has a motor chamber 22 and an overflow chamber 24. The drainage chamber 18 is provided with a drainage blade 19 therein, the motor chamber 22 is provided with a motor 23 therein, the overflow chamber 24 is positioned below the motor chamber 22, the main housing 21 has a bottom plate 211, the bottom plate 211 has a through hole 212 and is spatially communicated with the drainage chamber 18, the drainage blade 19 is connected with a driving shaft of the motor 23 through the through hole 212, and the motor 23 has a driving shaft according to the prior art, so that the details thereof will not be repeated. The outer surface of the main housing 21 is provided with a plurality of latch blocks 213.

The cover 31 covers the main housing 21 and covers the motor chamber 22. The cover 31 extends outward and downward to form a plurality of hooks 313, and is fixed to the main housing 21 by the hooks 313 hooking the latches 213.

Wherein, a plurality of partition walls 26 extend upwards from the bottom plate 211 of the main housing 21 and are positioned in the overflow accommodating chamber 24, the plurality of partition walls 26 are arc-shaped and surround the through hole 212 to form a cylindrical structure, and a gap 27 is formed between every two partition walls 26 at a predetermined distance, the plurality of slits 27 formed between the plurality of partition walls 26 are equiangularly arranged with respect to the axis of the cylindrical structure, and the partition walls 26 extend obliquely outward along one edge of each slit 27 to form a plurality of baffles 261, each baffle 261 is configured in an arc shape in the present embodiment, and extends to the other edge of each slit 27 across each slit 27, each of the guide plates 261 is spaced apart from the partition wall 26 at the other edge of each slit 27 by a predetermined distance and forms a flow passage 271 opening outward, the space enclosed by the partitions 26 is spatially communicated with the outside through the plurality of slits 27 via the plurality of flow channels 271. The plurality of baffles 261 extend and are arranged clockwise with respect to the axis of the cylindrical structure.

Next, a plurality of baffles 25 extend upward from the bottom plate 211 of the main housing 21, each baffle 25 is located between each slit 27 and the through hole 212 corresponding to each slit 27, and one baffle 25 is separated from its corresponding slit 27 by a predetermined distance without closing the slit 27. The baffles 25 can generate the effect of blocking the sound, so that the sound in the cylindrical structure is not directly passed through the gaps 27, but blocked by the baffles 25. Therefore, in terms of arrangement, the transverse width of each baffle 25 can be set to be not less than the width of one of the slits 27, for example, the same width as one of the slits 27 in the present embodiment.

In addition, the main housing 21 has an outer wall 28 surrounding the cylindrical structure formed by the plurality of partition walls 26 to form an outer annular region 29 therebetween, and the outer wall 28 has a plurality of overflow holes 281, for example three overflow holes 281, the overflow holes 281 are correspondingly located below the fixture blocks 213 at the installation positions, since the mold is installed for opening the mold, so that the overflow holes 281 and the fixture blocks 213 are installed at the corresponding positions. The bottom ends of the rims of the plurality of overflow holes 281 are positioned at the bottom plate 211 of the main housing 21 to be spatially communicated with the outer ring area 29. In addition, each of the overflow holes 281 is disposed close to each of the baffles 261, where close means that one of the overflow holes 281 is located between two adjacent baffles 261, closer to one of the baffles 261, and not located at the right middle position therebetween.

As shown in fig. 6, in practical implementation, the partition walls 26 may be set to have the same height, and the baffle plates 261 may have the same height as the partition walls 26, and in addition, the baffles 25 may also have the same height as the partition walls 26, and the bottom of the motor 23 abuts against the partition walls 26, the baffles 25 and the top edges of the baffle plates 261, that is, the height of the partition walls 26 is the height of the overflow chamber 24, and the top edges of the partition walls 26 are the motor chamber 22. In addition, as shown in fig. 3, the top of some of the partition walls 26 of the plurality of partition walls 26 extends upward to form two convex columns 262, the bottom of the motor 23 has two cavities 232, and when the bottom of the motor 23 is pressed against the top edges of the plurality of partition walls 26 and the plurality of air deflectors 261, the two convex columns 262 are embedded in the two cavities 232, thereby generating the positioning effect. The number of the protruding columns 262 and the recessed cavities 232 can be more than two, thereby increasing the positioning effect.

The heights of the aforementioned plurality of partition walls 26 and the baffles 25 may also be set different from each other, just to note the stability of their support motors 23.

The structure of the present invention is explained above, and the operation state of the present invention is explained next.

As shown in fig. 2, in a normal operation, the motor 23 rotates the drain blade 19, thereby discharging the water in the drain chamber 18 to the outside through the drain opening 14. In general, the outlet 14 is usually connected to a drain pipe (not shown) to drain water outwards, which is not shown in the drawings since it is very conventional.

As shown in fig. 2 and 3 in conjunction with fig. 5 and 6, after the motor 23 is turned off or stopped, the rotation of the drain blade 19 is stopped, and at this time, a part of the water in the drain pipe flows back into the drain chamber 18. Because the drainage vane 19 is disposed in the drainage chamber 18, the water flowing back in reverse flow does not enter the drainage chamber 18 too quickly, but slowly enters and then enters the cylindrical structure of the overflow accommodating chamber 24 through the through hole 212. The water in the cylindrical structure flows through the plurality of slits 27 and then flows out to the outer ring area 29 through the plurality of flow channels 271. Then, by the proximity of the overflow hole 281 to a baffle 261, that is, to an opening of the flow channel 271, the water flowing out from the flow channels 271 can rapidly flow to each overflow hole 281 and flow out.

The number of the overflow holes 281 may be determined according to actual requirements, and in this case, since three overflow holes 281 are close to three baffles 261 to sufficiently exert the effect of overflowing the water, it is not necessary to provide four overflow holes 281. In the case of three overflow holes 281, each overflow hole 281 is close to an opening of the flow passage 271, so as to shorten the flow passage 271, and further, to quickly drain water, so that the water level of the backflow water is not increased to damage the motor 23 due to accumulation in the cylindrical structure which is not drained quickly. Of course, if it is determined that four overflow holes are provided, each overflow hole may be provided to correspond to each of the baffles 261 in accordance with the correspondence relationship between the overflow hole 281 and each of the baffles 261 in fig. 5.

As can be seen from the above, the baffle 25 of the present embodiment can block the sound from directly penetrating through the gap 27, and besides the plurality of baffles 261 can positively block the sound penetrating through the gap 27, the outer wall 28 of the main housing 21 is provided outside the plurality of baffles 261, and the outer wall 28 can also exert the sound blocking effect, so that the plurality of baffles 261 and the outer wall 28 can exert multiple noise isolating effects, and the noise reduction effect is excellent. In addition, the arrangement relationship of the overflow hole 281 near the guide plate 261 still has the effect of shortening the flow passage 271 compared with the prior art, so that the water in the overflow containing chamber 24 can flow out quickly. To sum up, the utility model discloses can compromise simultaneously and shorten runner 271 and reduce the dual effect of noise, compared with the aforesaid prior art, have the promotion in the efficiency.

Of course, the present invention can have other embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the claims of the present invention.

Claims (8)

1. A drain pump having a sound dampening housing, comprising:

a lower shell, wherein the bottom of the lower shell is provided with a water suction port, and the side surface of the lower shell is provided with a water discharge port;

a main shell, which is cylindrical in nature and is arranged above the lower shell, a water drainage chamber is formed between the main shell and the lower shell, the water suction port and the water drainage port are both communicated with the water drainage chamber in space, and the main shell is provided with a motor accommodating chamber and an overflow accommodating chamber; the drainage chamber is internally provided with a drainage blade, a motor is accommodated in the motor accommodating chamber, the overflow accommodating chamber is positioned below the motor accommodating chamber, the main shell is provided with a bottom plate, the bottom plate is provided with a through hole and is communicated with the drainage chamber in space, and the drainage blade is connected with a driving shaft of the motor through the through hole; and

a cover body covering the main shell and covering the motor chamber;

the method is characterized in that:

a plurality of partition walls extend upwards from the bottom plate of the main shell and are positioned in the overflow containing chamber, the partition walls are arc-shaped and surround the through hole to form a cylindrical structure, a gap is formed between every two partition walls at a preset distance, the gaps formed between the partition walls are equiangularly arranged relative to the axis of the cylindrical structure, the partition walls extend outwards and obliquely along one edge of each gap to form a plurality of guide plates, each guide plate spans each gap and extends to the other edge of each gap, each guide plate is separated from the partition wall at the other edge of each gap at a preset distance and forms a flow channel which is opened outwards, wherein the space surrounded by the partition walls is communicated with the outside in space through the plurality of flow channels through the plurality of gaps;

a plurality of baffles extend upwards from the bottom plate of the main shell, each baffle is positioned between each gap and the through hole corresponding to each gap, and one baffle and the corresponding gap are separated by a preset distance and can not seal the gap;

the main shell body is provided with an outer wall, an outer ring area is formed between the outer wall and the cylindrical structure and surrounds the cylindrical structure formed by the partition walls, the outer wall is provided with a plurality of overflow holes, and the bottom ends of the hole edges of the overflow holes are positioned on the bottom plate of the main shell body and are communicated with the outer ring area in space.

2. A drain pump with a sound-damping housing according to claim 1, characterized in that: the heights of the partition walls are the same, the heights of the guide plates are the same as those of the partition walls, the heights of the baffles are the same as those of the partition walls, and the bottom of the motor abuts against the partition walls, the baffles and the top edges of the guide plates.

3. A drain pump with a sound-damping housing according to claim 2, characterized in that: among the partition walls, the top of part of the partition walls extends upwards to form at least two convex columns; the motor bottom is provided with at least two recesses, and when the motor bottom is pressed against the partition walls and the top edges of the guide plates, the at least two convex columns are embedded into the at least two recesses.

4. A drain pump with a sound-damping housing according to claim 1, characterized in that: the overflow holes are arranged close to the guide plates, wherein close means that one overflow hole is in two adjacent guide plates and is closer to one of the guide plates.

5. A drain pump with a sound-damping housing according to claim 1, characterized in that: the guide plates are arc-shaped.

6. A drain pump with a sound-damping housing according to claim 1, characterized in that: the guide plates extend and are arranged clockwise relative to the axis of the cylindrical structure.

7. A drain pump with a sound-damping housing according to claim 1, characterized in that: the transverse width of each baffle is not less than the width of the gap.

8. A drain pump with a sound-damping housing according to claim 1, characterized in that: the cover body extends outwards and downwards to form a plurality of hook parts, a plurality of clamping blocks are arranged on the outer surface of the main shell, and the cover body is fixed on the main shell by hooking the clamping blocks through the hook parts; each overflow hole is correspondingly positioned below each clamping block.

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