KR101487026B1 - Dryer - Google Patents

Abstract

The dryer of the present invention is a unit for filtering the lint on the circulating flow path of the dryer. The unit includes a filter for passing air passing through the circulating flow path to filter out foreign matter, a third A filtering unit including a flow path guide for generating an air flow and separating foreign matter adhering to the filter and a negative pressure mechanism for inducing a negative pressure in a direction different from the direction of the second air flow to cause the third air flow, . According to the present invention, there is no need to separately remove the foreign matter filtered by the filter, which is advantageous in that the dryer can be conveniently used.

Lint removal

Description

Dryer {Dryer}

The present invention relates to a dryer.

Dryer is a device that dries moisture-rich objects by heating and ventilation.

During the operation of the dryer, a lot of scattered foreign matter is generated during drying. These scattering materials become dust, deteriorate the environment in which the dryer is placed, and further impair the health of the user. In order to solve the problem caused by the scattered dust, a filter for filtering scattered dust is generally provided inside the dryer using a fine mesh. Of course, if they are not filtered out of the filter, they will accumulate on the article to be dried, complaining to the dryer user.

However, if the filter continues to catch dust, it will later clog the filter and you will not be able to use the dryer until you clean it.

However, even though a large amount of dust is generated in the nature of the apparatus, the capacity of the filter to filter it is limited, so that the user has to empty the filter frequently. This is further evident in the case of a condensing dryer in which the air used for drying is circulated without exhausting. However, it is not difficult for the dryer user to clean the filter.

The dryer of the present invention is provided as a mirror to the current situation described above, and includes a cooling flow path in which outside air is introduced, heat-exchanged, and then discharged; A circulating flow path in which the internal air is heat-exchanged and circulated; A heat exchanger provided at an intersection of the cooling passage and the circulation passage; A cooling fan for generating a first air flow of the cooling passage; A circulation fan for generating a second air flow of the circulation passage; At least one motor for rotating the cooling fan and the circulation fan; And a filter provided in the circulating flow passage for filtering the lint on the circulation flow passage, the filter passing through the circulating flow passage to filter out foreign matter, a third filter which is different from the flow direction of the second air flow in the circulation flow passage, A filtering unit including a flow path guide for generating an air flow and separating foreign matter adhering to the filter and a negative pressure mechanism for inducing a negative pressure in a direction different from the direction of the second air flow to cause the third air flow, .

In the dryer, the sound pressure is generated in at least one of the circulation fan and the cooling fan, wherein the sound pressure mechanism is provided with at least one of cyclotron Unit may be included. As a result, foreign substances exemplified by lint can be removed by using the negative pressure provided on the circulating flow path without a separate driving source.

In the dryer, the sound-pressure mechanism may be a deflector provided on at least one side surface of the flow guide to turn the direction of the second air flow in the other direction. This makes it possible to implement the inventive concept more simply since the structure of the flow path guide itself needs to be changed to the structure provided with the deflector without much structural change.

In the dryer, the filter rotates, and the flow guide may extend in a radial direction. This has the advantage that foreign matter can be removed from the entire area of the filter.

According to the present invention, there is an advantage that the dryer can be conveniently used.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It should be understood, however, that there is no intention to limit the invention to the particular embodiments disclosed, and that those skilled in the art, upon reading and understanding the teachings of the invention, It will be understood that they are also included in the scope of the present invention.

≪ Embodiment 1 >

1 is a perspective view of a dryer according to an embodiment. Referring to FIG. 1, the dryer 1 includes a drum 7 in which moisture, which is required to be dried, such as clothes, is housed therein, and a door 7 for selectively opening and closing the front of the drum 7 5). A transparent window 6 is provided on the door 5 so that the user can check the inside of the drum 7 to see whether the operation is normal or whether there is a problem.

The operation unit 3 serves as an interface between the user and the dryer, and the condensed water collecting unit 2 is a part where condensed water collects during operation of the dryer, so that the user can easily discard the condensed water later. The bottom cover 4 is a part for viewing the structure of the internal mechanical part of the dryer. The user can remove the bottom cover 4 and remove the foreign matter contained in the bucket (see 80 in FIG. 2) have.

2 is a view for explaining the internal structure of the dryer. The operation of the dryer will be described with reference to FIG. The dryer shown in the embodiment is a condensing dryer in which two flow paths are generated during the operation of the dryer, one is a circulating flow path for circulating the inside of the drier to condense moisture from the object to be dried and then condensing the moisture in the heat exchanger, One is a cooling flow path for cooling the fluid flowing through the circulation flow path in the heat exchanger.

First, the circulating flow path starts from the drum 7 and is indicated by a dotted line in FIG. Hot air inside the drum 7 is discharged after being dampened, and then filtered at least through foreign substances contained in the lint while passing through the filtering unit 20. Passes through the circulation fan (11) after passing through the filtering unit (20). Here, the circulating fan 11 is rotated by the motor 10 and plays a role of directly providing negative pressure for forming the circulating flow path. The fluid passing through the circulating fan 11 is cooled through the heat exchanger 13, and the moisture carried from the drum 7 is condensed due to the low relative humidity while being cooled. The condensed air is pumped by a pump (not shown) and conveyed to the condensate collector 2. After the moisture is removed by the condensation action, the fluid is heated by a heating unit (not shown) and then flows into the drum 7 again. While the drum 7 is stirred with the object to be dried, .

The cooling flow path is introduced from the outside of the dryer by the cooling fan 12. The cooling fan 12 is rotated by the motor 10. The air introduced from the cooling fan 12 enters the heat exchanger 13 and is discharged to the outside of the dryer after cooling the fluid on the circulation flow path as described above.

The cooling fan 12 and the circulation fan 11 are rotated by the motor 10, and the driving force may be intermittently transmitted. The motor 10 may be a bi-directional rotating motor for rotating the drum 7 in the forward / reverse directions.

On the circulating flow path, hot, foreign matter-rich air discharged from the drum is discharged through the cover portion of the drum as shown in the figure. Then, it is filtered through the filtering unit 20. At least a portion of the filtering unit 20 is installed in the drum cover, so that the air passing through the drum cover is filtered.

The filtering unit 20 is provided with a fine mesh structure filter that filters foreign substances exemplified by lint and a separation structure for automatically separating the foreign matter filtered by the filter. The filtering unit 20 having such a structure will be described in more detail with reference to the front perspective view of the filtering unit shown in Fig. 3 together with Fig. In Fig. 3, the front cover is removed.

2 and 3, the filtering unit 20 includes components for filtering in an inner space formed by the rear cover 21 and the front cover 27, and a bucket (not shown) is disposed below the filtering unit 20. [ 80 are provided to store the filtered and filtered lint in the filtering unit 20. In the filtering unit 20, the fluid is introduced through the front cover 27, the introduced lint is filtered by the filter, and the filtered lint is automatically separated and removed from the filter.

The filter unit 20 is provided with a filter 24 provided on the rear cover 21 for removing the lint on the circulating flow path, a filter motor 23 for rotating the filter 24, 23 are provided.

In addition, as the structure for automatically removing the lint filtered by the filter 24, the flow guide 25 is provided on the front-side surface of the filter 24 on which the lint is filtered. The flow path guide generates an air flow in a direction different from the flow direction of the circulation flow path, thereby separating the foreign substances adhering to the filter 24. More precisely, with reference to Fig. 3, an air flow is generated in a direction opposite to the backward circulating flow path-forward direction, and the lint attached to the front surface of the filter 24 is separated. The flow path guide 25 serves to guide the air flow.

In order to generate an air flow in the direction opposite to the circulating flow path by the flow guide, a negative pressure for guiding the air flow in the direction of separating the lint from the inside of the flow guide or at least the front surface of the filter 24 .

A sound pressure mechanism for guiding negative pressure to the flow path guide 25 in the first embodiment will be described. A negative pressure duct 41 is connected to the cyclone dust collecting unit 40 and the negative pressure duct 41 is connected to the circulating fan 11 As shown in Fig. The cyclone dust collecting unit 40 has a dust collecting case 42 having two cylindrical structures and one cylinder constituting the dust collecting case 42 is connected to the end of the flow path guide 25, And is connected to the sound pressure duct 41. The two cylinders are partitioned by a partition plate 43 and the partition plate 43 is communicated by an opening hole. In each of the cylinders, filtration holes 45 and 46 are provided so that foreign matter separated by the cyclone filtering action is separated outwardly by the centrifugal force. The lint having passed through the filtration holes 45 and 46 is stored in the bucket 80 after passing through the diffusion duct 29.

The action of the sound pressure mechanism and the flow guide described above will be described in a time-series manner.

The negative pressure of the circulating fan 11 is transmitted to the flow path guide 25 through the dust-collecting case 42 via the negative pressure duct 41. As shown in the cross-sectional view of FIG. 3 taken along the line I-I 'shown in FIG. 4, the flow guide has a suction nozzle, and the suction nozzle area finally forms the sound pressure area 31. The negative pressure in the sound pressure area 31 leads to an air flow sucked from the filter 24 side, and the lint attached to the filter 24 is also sucked together with the sucked air flow. The air flow sucking the lint will include at least a part of the flow in the direction opposite to the air flow on the circulating flow path.

On the other hand, since the filter 24 is rotated by the filter motor 23, foreign matter such as lint can be removed from the entire area of the filter 24 even if the flow path guide 25 is stopped. Further, for the purpose of separating foreign matter, the flow path guide 25 extends in the radial direction starting from the center of the filter 24.

The lint and fluid sucked through the negative pressure area 31 move along the extending direction of the flow guide 25 and are sucked into the dust case 42. In the dust-collecting case 42, the foreign matter falls through the second filtration hole 46 by the rotation of the air, and after the air passes through the separation plate 43, 1 through the filtration hole 45, and the air from which the foreign substance is removed moves to the circulation fan 11 through the negative pressure duct 41. [

The foreign matter separated through the filtration holes 45 and 46 is diffused through the diffusion duct 29. The diffusion duct 29 also serves to prevent foreign matter contained in the bucket 80 from being exhaled by the turbulence generated inside the dust collecting case 42 to the bucket 80. The contact surfaces of the diffusion duct 29 and the bucket 80 are sealed to form a sealing part 44 to prevent negative pressure transmitted through the sound pressure duct 41 from being transmitted to the bucket 80. The sealing portion 44 can accomplish its role by a method of interposing rubber between the diffusion duct 29 and the bucket 80, for example.

According to this embodiment, it is possible to automatically remove the foreign matter filtered by the filter in operation of the dryer. Thereby, there is no inconvenience that the user needs to clean the filter, and the user has the effect of only emptying the bucket, and the user can use the dryer more comfortably.

Other modifications are possible in the present embodiment. For example, the sound pressure may be transmitted from the cooling fan 12 instead of the circulation fan 11, or a separate fan may be used to generate sound pressure. However, when the cooling fan 12 is used, dust such as lint may be introduced into the room, which is undesirable. If a separate fan is provided, the material cost rises and the internal space becomes large, which is not preferable . In this respect, it can be said that the sound pressure is preferably supplied from the circulating fan 11.

≪ Embodiment 2 >

The second embodiment differs from the first embodiment in the manner of applying the negative pressure. Therefore, the description of the first embodiment can be applied as it is without any specific explanation, so that the description thereof will be omitted and the description of the first embodiment will be used.

5 is a front perspective view of the filtering unit according to the second embodiment.

Referring to FIG. 5, a deflector 51 is provided on one side of the flow guide 50. The deflector 51 guides a part of the air on the circulation flow path to the inside of the flow guide 50 to create a sound pressure area inside the flow guide 50. The sound-pressure area serves to shake off the foreign substances attached to the filter into the inner space of the flow guide 50.

Fig. 6 is a cross-sectional view taken along the line II-II 'in Fig. 5, and the operation of the flow guide according to the second embodiment will be described with reference to Fig. The air that has flowed into the inner space of the flow guide 50 along the deflector 51 strikes the filter 24 and rises along the flow guide 50 opposite to the side where the deflector 51 is formed, Foreign matter attached to the filter 24 also rises along the ascending airflow, so that foreign matter floats inside the flow path guide 50, and the floating foreign matter falls downward due to its own weight and air flow. On the other hand, a part of the air flowing into the flow guide 50 drops down along the flow guide 50 along with the foreign matter. At this time, since the flow velocity diffuses rapidly while passing through the diffusion duct 29, There is no problem with disturbance of foreign matter contained in the bag 80 or foreign matter falling toward the bucket 80.

On the other hand, air introduced into the flow path guide 50 through the deflector 51 may escape to the opposite side of one side of the flow path guide 50 in which the deflector 51 is formed. It is preferable that the wall surface of the flow path guide 50 opposite to the side where the deflector 51 is formed further approaches the filter 24 side so that the interval between the filter 24 and the flow path guide 50 is narrowed.

According to the second embodiment, it is possible to obtain the effect of removing foreign substances attached to the filter by simply changing the structure of the flow guide itself. This provides an advantage that no problems such as an increase in manufacturing cost and an additional consumption of energy are generated at all.

≪ Third Embodiment >

The third embodiment of the present invention is largely the same as the second embodiment, only the structure of the deflector is different. Therefore, the description of the second embodiment can be applied as it is without any specific explanation.

7 is a sectional view of the flow guide according to the third embodiment.

7, a first deflector 51 and a second deflector 52 are formed on both side surfaces of the flow path guide 50, and a blocking film 53). In this case, since two negative pressure regions are generated inside the flow guide 50, the efficiency of removing foreign matter from the filter 24 can be improved.

In the case of this embodiment, the shielding film 53 may not be provided. In the absence of the shielding film 53, the air introduced from the opposed deflectors 51 and 52 collides with each other to generate an upward flow, An area of an increased pressure may be formed on the surface of the substrate 24.

According to the third embodiment, in addition to the effect of the second embodiment, the efficiency of removing foreign matter from the filter can be improved.

The present invention improves the user's convenience by making it possible to use the dryer more conveniently and does not require a separate power source for removing foreign matter from the filter, which is preferable from the viewpoint of energy saving, Its applicability is even higher.

1 is an external perspective view of a dryer.

2 is a perspective view showing the internal structure of the dryer.

3 is a front perspective view of the filtering unit;

4 is a cross-sectional view taken along the line I-I 'in Fig. 3;

5 is a front perspective view of a filtering unit according to a second embodiment;

6 is a sectional view of II-II 'of FIG. 5;

7 is a sectional view of the flow guide according to the third embodiment.

Claims (5)

A cooling flow passage through which outside air flows and is heat-exchanged and then discharged; A circulating flow path in which the internal air is heat-exchanged and circulated; A heat exchanger provided at an intersection of the cooling passage and the circulation passage; A cooling fan for generating a first air flow of the cooling passage; A circulation fan for generating a second air flow of the circulation passage; At least one motor for rotating the cooling fan and the circulation fan; And A unit provided in the circulation channel for filtering the lint on the circulation channel, A filter through which air passing through the circulating flow path passes to filter out foreign matter, A flow guide for generating a third air flow different from the flow direction of the second air flow of the circulation flow path to separate foreign matter adhering to the filter, A filtering unit including a negative pressure mechanism for inducing a negative pressure in a direction different from a direction of the second air flow in order to cause the third air flow, Included dryer. The method according to claim 1, Wherein the sound pressure is negative pressure generated in at least one of the circulation fan and the cooling fan. 3. The method of claim 2, Wherein the sound pressure mechanism includes a cyclone dust collecting unit provided between at least one of the circulating fan and the cooling fan. The method according to claim 1, Wherein the sound pressure mechanism is a deflector provided on at least one side surface of the flow guide to turn the direction of the second air flow in the other direction. The method according to claim 1, The filter rotates, Wherein the flow guide extends in a radial direction.

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