TWM580629U - Drainage pump with muffling housing - Google Patents

Abstract

A drain pump having a muffler housing, comprising: a lower casing; a main casing; a drainage blade; a motor; and a cover body disposed on the main casing; wherein the main casing is The bottom plate extends a plurality of partition walls and a plurality of baffles upwards, and the two partition walls are separated by a predetermined distance to form a slit, and the plurality of partition walls extend obliquely outward along an edge of each of the slits to form a plurality of baffles Each of the baffles is separated from the partition wall of the other edge of the corresponding slit by a predetermined distance to form an outwardly open first-class track; each of the baffles is located between each of the slits and the perforation; the main casing has an outer wall An outer ring region is formed around the cylindrical structure formed by the plurality of partition walls, and the outer wall has a plurality of overflow holes.

Description

Drain pump with muffler housing

The present invention relates to a drainage device, and more particularly to a drainage pump having a muffler housing for use in an air conditioning device.

Chinese Patent No. 104514725A discloses a drain pump for an air conditioner, the main feature of which is that the lower casing of the motor has a cover portion, and a cylindrical outer tube portion and an inner tube portion supporting the motor, and The drain slit provided in the outer tubular portion has a guide member for guiding the residual water to the outside. The above-mentioned conventional patent also discloses that the drain slit of the lid portion has a guide member for guiding the residual water to the outside. In this case, the inner cylinder slit of the inner cylinder portion can be shielded by the outer cylinder portion, thereby blocking part of the noise of the motor operation. However, the drainage path in this case is too long, which increases the difficulty in discharging the residual water.

China Patent No. I612221 discloses a drain pump for an air conditioner, and the focus of the present invention is to utilize a plurality of slits provided by a cylindrical body of the lower casing of the motor, and a deflector spanning each of the slits. Forming an outward flow path to achieve the effect of shortening the drainage path. However, although the technology of this case shortens the drainage path, it is found in actual use that although the deflector of the case can positively block the sound in the tubular body, the sound will still pass through the plurality of slits. Out, the effect of noise reduction is still limited.

In the above-mentioned known technique, the drain pump casing having the noise reduction and noise reduction effect has a long drainage path, and the drainage pump casing having a short drainage path has a large noise. From this, it can be seen that the current known technology cannot solve the problem of noise reduction and shortening of the drainage path.

In order to solve the above problems, the present invention proposes a drain pump having a sound absorbing casing, which can balance the effects of noise reduction and noise reduction and shortening the drainage path. The drainage pump with the muffler housing proposed by the present invention comprises: a lower casing, a suction port formed at the bottom, a drain port formed on the side; a main casing, substantially cylindrical, disposed in the lower casing Forming a drainage chamber between the upper casing and the lower casing, the water suction port and the drainage port are spatially connected to the drainage chamber, and the main casing has a motor chamber and an overflow chamber; the drainage a drainage vane is disposed in the room, the motor compartment houses a motor, the overflow chamber is located below the motor compartment, and the main casing has a bottom plate, the bottom plate has a perforation and is spatially connected to the drainage chamber The drainage blade is connected to the drive shaft of the motor by the through hole; and a cover body covers the main casing to cover the motor chamber; wherein the bottom plate of the main casing extends upward a plurality of partition walls are located in the overflow chamber, the plurality of partition walls are arc-shaped and enclose the perforations to form a cylindrical structure, and the two partition walls are separated by a predetermined distance to form a gap, and the plurality of partition walls form a gap The complex The slits are arranged equiangularly with respect to the axis of the cylindrical structure, and the plurality of partition walls extend obliquely outward along an edge of each of the slits to form a plurality of baffles, each of which spans each of the slits And extending to the other edge of each of the slits, each of the baffles is separated from the partition wall of the other edge of the slit by a predetermined distance and forms a first-class channel that is open to the outside, wherein the space enclosed by the plurality of partition walls is borrowed The plurality of slots are spatially connected to the outside through the plurality of slots; the plurality of baffles are extended upwardly from the bottom plate of the main casing, and the baffles are located between the slits and the perforations corresponding to the slits. And the baffle is separated from the corresponding one of the slit by a predetermined distance without closing the slit; the main casing has an outer wall surrounding the cylindrical structure formed by the plurality of partition walls and the cylinder An outer ring region is formed between the outer structures, the outer wall has a plurality of overflow holes, and the bottom end of the plurality of overflow holes is located at a bottom plate of the main casing and is in spatial communication with the outer ring region.

With the above structure, the present invention can provide a good noise reduction effect by the multiple blocking sound structure of the outer wall, the baffle and the baffle.

Further, if the overflow hole of the present creation is disposed close to each of the baffles, the proximity is here, and the overflow hole is adjacent to the two adjacent baffles. With this baffle, in this case, the creation will shorten the flow path more than the known technique, making the water easier to discharge. Therefore, such an arrangement enables the present creation to simultaneously achieve the dual effects of shortening the flow path and reducing the noise, and has an improvement in efficiency as compared with the prior art.

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

As shown in FIG. 1 to FIG. 6 , a drainage pump 10 having a sound-absorbing housing is mainly composed of a lower housing 11 , a main housing 21 and a cover 31 . ,among them:

The lower casing 11 has a suction port 12 formed at the bottom and a drain port 14 formed at the side.

The main casing 21 is substantially cylindrical and disposed above the lower casing 11 and forms a drainage chamber 18 with the lower casing 11, and the water suction port 12 and the drainage port 14 are spatially connected. In the drainage chamber 18, the main housing 21 has a motor chamber 22 and an overflow chamber 24. A drainage vane 19 is disposed in the drain chamber 18, and a motor 23 is disposed in the motor chamber 22. The overflow chamber 24 is located below the motor chamber 22, and the main housing 21 has a bottom plate 211. The 211 has a through hole 212 and is spatially connected to the drain chamber 18. The drain blade 19 is connected to the drive shaft of the motor 23 by the through hole 212. Since the motor 23 has a drive shaft, it is common knowledge. Narration. The outer surface of the main casing 21 is provided with a plurality of blocks 213.

The cover 31 is covered by the main casing 21 to cover the motor compartment 22. The cover body 31 extends outwardly and downwardly from the plurality of hook portions 313, and is fixed to the main casing 21 by the plurality of hook portions 313 hooking the plurality of hook blocks 213.

The bottom plate 211 of the main casing 21 extends upwardly from the plurality of partition walls 26 and is located in the overflow chamber 24, and the plurality of partition walls 26 are arcuate and enclose the through holes 212 to form a cylindrical structure, and two The two partition walls 26 are separated by a predetermined distance to form a slit 27, and the plurality of slits 27 formed between the plurality of partition walls 26 are arranged equiangularly with respect to the axis of the cylindrical structure, and the plurality of partition walls are arranged A plurality of deflectors 261 are formed obliquely outwardly along an edge of each of the slits 27, and each of the deflectors 261 is arcuately disposed in the embodiment and extends across each of the slits 27 to each of the slits The other edge of the slit 27, each of the baffles 261 is spaced apart from the partition wall 26 at the other edge of the slit 27 by a predetermined distance and forms a first-way 271 which is open to the outside. The space enclosed by the plurality of partition walls 26 is The plurality of slits 27 are spatially connected to the outside via the plurality of runners 271. The plurality of baffles 261 extend and are arranged in a clockwise direction with respect to the axis of the cylindrical structure.

Next, a plurality of baffles 25 are extended upwardly from the bottom plate 211 of the main casing 21, and the baffles 25 are located between the slits 27 and the perforations 212 corresponding to the slits 27, and the baffle 25 is A corresponding one of the slits 27 is separated by a predetermined distance without closing the slit 27. The plurality of baffles 25 can produce an effect of blocking sound so that sound in the cylindrical structure does not pass directly through the plurality of slits 27, but is blocked by the plurality of baffles 25. Therefore, in the arrangement, the lateral width of each of the baffles 25 can be set to be not less than the width of the slit 27, for example, in the present embodiment, it is set to be the same as the width of the slit 27.

In addition, the main casing 21 has an outer wall 28 which surrounds the cylindrical structure formed by the plurality of partition walls 26 and forms an outer ring portion 29 with the outer cylindrical wall. The outer wall 28 has a plurality of overflows. The hole 281 is exemplified by three in the embodiment. The plurality of overflow holes 281 are located below the respective blocks 213 at the set position. This is because the mold is arranged for the purpose of mold opening, so that the overflow will occur. The hole 281 is provided at a position corresponding to the upper and lower portions of the block 213. The bottom end of the plurality of overflow holes 281 is located at the bottom plate 211 of the main casing 21 and is in spatial communication with the outer ring portion 29. In addition, each of the overflow holes 281 is disposed adjacent to each of the baffles 261, where the impingement holes 281 are adjacent between the two adjacent baffles 261, which are closer to one of them. The baffle 261 is not located just in the middle of the two.

As shown in FIG. 6, in actual implementation, the plurality of partition walls 26 may be disposed to have the same height, and the height of the plurality of baffles 261 is the same as the plurality of partition walls 26, and in addition, the degree of the plurality of baffles 25 is also The bottom of the motor 23 can be disposed to be opposite to the plurality of partition walls 26, the plurality of partition walls 26, the plurality of baffles 25, and the top edge of the plurality of baffles 261, that is, the height of the plurality of partition walls 26 is The height of the overflow chamber 24 is above the top edge of the plurality of partition walls 26 as the motor chamber 22. In addition, as shown in FIG. 3, in the plurality of partition walls 26, a part of the partition wall 26 extends upward to form two protrusions 262, and the bottom of the motor 23 has two recesses 232, and the bottom of the motor 23 is offset. When the plurality of partition walls 26 and the top edge of the plurality of baffles 261 are embedded, the two protrusions 262 are embedded in the two recesses 232, thereby generating a positioning effect. The number of the protrusions 262 and the recesses 232 may be more than two, thereby increasing the positioning effect.

The heights of the plurality of partition walls 26 and the baffles 25 described above may also be set to be different from each other, only to note the stability of the support motor 23.

The above describes the architecture of this creation, and then explains the operational status of this creation.

As shown in Fig. 2, in the normal operation, the motor 23 drives the drain blade 19 to rotate, whereby the water in the drain chamber 18 is discharged outward from the drain port 14. Under normal conditions, the drain port 14 is usually connected to a drain pipe (not shown) to drain the water outward. Since the drain pipe is a well-known technique, it is no longer represented by a pattern. .

As shown in Figs. 2 and 3, as shown in Figs. 5 and 6, after the motor 23 is turned off or stopped, the drain blade 19 stops rotating. At this time, the water in the drain pipe is partially reversed. Return to the drain chamber 18. Since the drainage vane 19 is provided in the drainage chamber 18, the water that flows back does not enter the drainage chamber 18 too quickly, but slowly enters, and then enters the circle of the overflow chamber 24 by the perforation 212. Inside the cylindrical structure. Water in the cylindrical structure flows out through the plurality of slits 27 through the plurality of flow passages 271 into the outer ring region 29. Then, by the overflow hole 281 being close to a baffle 261, that is, an opening close to a flow path 271, the water flowing out of the plurality of flow paths 271 can be quickly flowed to the overflow. The hole 281 flows outward.

When determining the number of the overflow holes 281, it can be determined according to actual needs. In the present case, the three overflow holes 281 are close enough to the three baffles 261 to have sufficient overflow and discharge effect, so Four overflow holes 281 are provided. In the case of the three overflow holes 281 of the present case, each of the overflow holes 281 is still close to the opening of the flow path 271, and the effect of shortening the flow path 271 can be exerted, and thus, the water can be drained quickly, so that the flow can be reversed. The water does not accumulate in the cylindrical structure quickly because it cannot be discharged, and the water level rises to damage the motor 23. Of course, if it is determined that four overflow holes are provided, each overflow hole can be disposed corresponding to each of the deflectors 261 according to the corresponding relationship between the overflow hole 281 and the respective baffles 261 in FIG.

As can be seen from the above, the baffle 25 of the present case blocks the effect that the sound is directly passed through the slit 27, and the complex baffle 261 can positively block the sound passing through the slit 27, in addition to the complex guide The outer wall 28 of the main casing 21 is also provided outside the flow plate 261. The outer wall 28 can also exert an effect of blocking sound. Therefore, the plurality of baffles 261 and the outer wall 28 can exert multiple effects of isolating noise. The noise effect is excellent. In addition, with the arrangement relationship of the overflow hole 281 of the present case close to the deflector 261, the flow path 271 is further shortened by the prior art, so that the water located in the overflow chamber 24 can quickly flow out. In summary, the creation can simultaneously take into account the dual effects of shortening the flow path 271 and reducing noise, and has an improvement in efficiency compared to the prior art.

10‧‧‧Drainage pump with silencer housing

11‧‧‧ Lower case

12‧‧‧ water suction port

14‧‧‧Drainage

18‧‧‧Drainage room

19‧‧‧Drainage blades

21‧‧‧Main housing

211‧‧‧floor

212‧‧‧Perforation

213‧‧‧ card block

22‧‧‧Motor room

23‧‧‧Motor

232‧‧‧ recesses

24‧‧‧ overflow room

25‧‧ ‧Baffle

26‧‧‧ partition wall

261‧‧‧ deflector

262‧‧‧Bump

27‧‧‧ gap

271‧‧‧ flow path

28‧‧‧ outer wall

281‧‧‧ overflow hole

29‧‧‧Outer Ring Area

31‧‧‧ Cover

313‧‧‧Hook

Figure 1 is a perspective view of a combination of a preferred embodiment of the present invention. Figure 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 casing. Fig. 4 is a partial diagram of a preferred embodiment of the present invention, mainly showing the bottom surface of the motor. Figure 5 is a plan 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.

Claims (8)

A drain pump having a muffler housing includes: a lower casing, a suction port formed at the bottom, and a drain port formed at the side; a main casing, substantially cylindrical, disposed above the lower casing, and A drainage chamber is formed between the lower casings, wherein the suction port and the drainage port are spatially connected to the drainage chamber, and the main casing has a motor chamber and an overflow chamber; the drainage chamber is provided with a drainage blade The motor chamber houses a motor, the overflow chamber is located below the motor chamber, and the main housing has a bottom plate having a through hole and spatially communicating with the drain chamber. Connecting the drive shaft of the motor by the through hole; and a cover covering the main housing to cover the motor chamber; wherein: the base plate extends upward from the bottom plate of the main housing And in the overflow chamber, the plurality of partition walls are arc-shaped and enclose the perforations to form a cylindrical structure, and the two partition walls are separated by a predetermined distance to form a gap, and the plurality of partition walls are formed. The plural seam Forming an equiangular arrangement with respect to an axis of the cylindrical structure, and the plurality of partition walls extend obliquely outward along an edge of each of the slits to form a plurality of baffles, each of the baffles spanning each of the slits Extending to the other edge of each of the slits, each of the baffles is spaced apart from the partition wall of the other edge of the slit by a predetermined distance and forms a first-class channel that is open to the outside, wherein the space enclosed by the plurality of partition walls is The plurality of slots are spatially connected to the outside through the plurality of channels; the plurality of baffles extend upward from the bottom plate of the main casing, and each of the baffles is located between each of the slits and the perforations corresponding to the slits, and a baffle is spaced apart from a corresponding one of the slits by a predetermined distance without closing the slit; the main casing has an outer wall surrounding the cylindrical structure formed by the plurality of partition walls and the cylindrical shape An outer ring region is formed between the structures, the outer wall has a plurality of overflow holes, and the bottom end of the plurality of overflow holes is located at a bottom plate of the main casing and is in spatial communication with the outer ring region. A drain pump having a muffler housing according to claim 1, wherein: the plurality of partition walls have the same height, and the height of the plurality of baffles is the same as the plurality of partition walls, and the height of the plurality of baffles is separated from the plurality The wall is the same, and the bottom of the motor is offset from the plurality of partition walls, the plurality of baffles, and the top edge of the plurality of baffles. A drain pump having a sound absorbing casing according to claim 2, wherein: in the plurality of partition walls, a part of the partition wall extends upward to form at least two protrusions; the bottom of the motor has at least two pockets, the motor When the bottom portion is opposite to the plurality of partition walls and the top edge of the plurality of baffles, the at least two studs are embedded in the at least two recesses. A drain pump having a sound absorbing casing according to the first aspect of the patent application, wherein: each of the overflow holes is disposed adjacent to each of the baffles, wherein the impingement hole is adjacent to the finger, and the overflow hole is adjacent to the second Among the baffles, it is closer to one of the baffles. A drain pump having a sound absorbing casing according to the first aspect of the patent application, wherein: the plurality of baffles are arcuate. A drain pump having a muffler housing according to claim 1, wherein the plurality of baffles extend and are arranged in a clockwise direction with respect to an axis of the cylindrical structure. A drain pump having a sound absorbing casing according to the first aspect of the patent application, wherein: the lateral width of each of the baffles is not less than the width of the slit. A drain pump having a sound absorbing casing according to the first aspect of the patent application, wherein: the cover system extends outwardly and downwardly to a plurality of hook portions, and the outer surface of the main casing is provided with a plurality of blocks, and the cover system is provided by the plurality of hook portions The plurality of blocks are housed and fixed to the main casing; each of the overflow holes is correspondingly located below each of the blocks.