CN211446322U

CN211446322U - Drying air duct and clothes drying equipment

Info

Publication number: CN211446322U
Application number: CN201922158476.9U
Authority: CN
Inventors: 汲超; 徐东恒; 杨帆; 吴宇婷
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-08
Anticipated expiration: 2029-12-05

Abstract

The utility model provides a stoving wind channel, dry clothing equipment. The drying air duct comprises a shell and a heat pipe set, wherein a condensation channel and a heating channel are formed in the shell, the heat pipe set is provided with a heat pipe cold end and a heat pipe hot end, the heat pipe cold end is located in the condensation channel, and the heat pipe hot end is located in the heating channel. The utility model provides a pair of stoving wind channel, clothes drying equipment corresponds the cold junction of heat pipe group with the hot junction and sets up in the condensing channel and the heating channel in stoving wind channel, promotes the utilization ratio of heat pipe group, improves dehumidification and the heating efficiency to the drying air flow, prevents to form heat pollution to external environment.

Description

Drying air duct and clothes drying equipment

Technical Field

The utility model belongs to the technical field of dry clothing equipment, concretely relates to stoving wind channel, dry clothing equipment.

Background

With the continuous improvement of the quality of life, people have higher and higher requirements on life, a trend is towards a healthy, comfortable and quick life style, and the washing and drying machine is taken as a pet in the market and is already in the field of vision of the public. Existing dryers include direct exhaust, condensing, and heat pump types. Among the three drying modes, the heat pump type clothes dryer has overwhelming advantages in the aspects of drying efficiency, energy conservation and the like, and most conforms to the national purposes of green energy conservation and emission reduction. But is limited in the miniaturization application of the dryer due to the limitation of the system of the heat pump dryer itself, the volume and weight are large and there is a risk of leakage of the refrigerant. Therefore, there is an urgent need to develop a dryer product for a small market. In order to satisfy the miniaturized demand of clothing drying equipment, the mode that adopts semiconductor refrigeration piece and heat pipe group to combine together among the prior art carries out the condensation to the stoving air current and dispels the heat, but the utility model discloses the people discovers, heat pipe group among the prior art is used for the condensation dehumidification more, also the cold junction of heat pipe group among the also prior art is utilized, and the hot junction of heat pipe group then considers to expose in the environment outside the wind channel based on the space setting, this party does not can make full use of to the heat of heat pipe group, the utilization ratio of heat pipe group has been reduced, on the other hand conducts the heat of heat pipe group to external environment and causes thermal pollution, propose based on this kind is not enough the utility model discloses.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model is to provide a stoving wind channel, clothes drying equipment sets up the cold junction of heat pipe group and hot junction correspondence in the condensing passage and the heating channel in stoving wind channel, promotes the utilization ratio of heat pipe group, improves dehumidification and the heating efficiency to the drying air flow, prevents to form heat pollution to external environment.

In order to solve the problem, the utility model provides a stoving wind channel, including casing, heat pipe group, condensation duct, heating channel have been constructed in the casing, heat pipe group has heat pipe cold junction, heat pipe hot junction, the heat pipe cold junction is in among the condensation duct, the heat pipe hot junction is in among the heating channel.

Preferably, the casing is a tubular structure with one closed end and one open end, a first partition plate is arranged in the casing, a first gap is formed between the first partition plate and the closed end of the casing, the casing is partitioned by the first partition plate to form the condensation channel and the heating channel, and the heat pipe set comprises a first heat pipe set connected to the first partition plate.

Preferably, a second partition plate is further arranged in the shell, the second partition plate is arranged opposite to the first partition plate at an interval, a second gap is formed between the second partition plate and the closed end of the shell, the heat pipe set further comprises a second heat pipe set, the second heat pipe set is connected to the second partition plate, the gap between the first partition plate and the second partition plate forms the condensation channel, and the heating channel is formed between the side, away from each other, of the first partition plate and the second partition plate and the shell.

Preferably, the first heat pipe set and the second heat pipe set are arranged in a staggered mode along the flow guiding direction of the condensation channel.

Preferably, the closed end has a flow guide structure for guiding the air flow in the condensation passage to the heating passage in a baffled manner.

Preferably, the flow guiding structure comprises a substrate, and an edge region of the substrate is higher than a middle region.

Preferably, a plurality of flow guide ribs are arranged on one side of the base plate facing to one end of the opening of the shell.

Preferably, the drying air duct further comprises a semiconductor refrigeration piece, and a hot end and a cold end of the semiconductor refrigeration piece are respectively located in the heating channel and the condensation channel; and/or a filtering piece is arranged at the air flow inlet of the condensation channel, and/or a fan is arranged at the outlet of the heating channel.

The utility model also provides a clothes drying device, including foretell stoving wind channel.

The utility model provides a pair of stoving wind channel, clothes drying equipment, the heat pipe cold junction and the heat pipe hot junction of heat pipe group are corresponded respectively and are set up in the heating channel and the condensing channel in stoving wind channel, can make full use of the cold volume of the air current after the dehumidification condensation and the difference in temperature between the heat pipe hot junction, thereby guaranteed the heat exchange efficiency of heat pipe group to the heat in make full use of heat pipe hot junction heats the stoving air current, make full use of the heat of heat pipe group, prevented the production of the thermal pollution phenomenon that brings in the external environment of heat pipe hot junction among the prior art simultaneously.

Drawings

Fig. 1 is a schematic view of an internal structure of a drying air duct according to an embodiment of the present invention (arrows in the figure show the flow direction of air flow);

FIG. 2 is a schematic view of the structure A-A in FIG. 1;

FIG. 3 is a schematic view of B-B in FIG. 1;

fig. 4 is the utility model discloses the principle schematic diagram of arranging of stoving wind channel.

The reference numerals are represented as:

1. a housing; 11. a condensing channel; 12. a heating channel; 13. a first separator; 14. a second separator; 2. a heat pipe set; 23. a first heat pipe set; 24. a second heat pipe set; 31. a substrate; 32. flow guide ribs; 4. a semiconductor refrigeration sheet; 41. a first refrigeration sheet; 42. a second refrigeration sheet; 5. a filter member; 6. a fan; 71. a first temperature sensor; 72. a second temperature sensor.

Detailed Description

Referring to fig. 1 to 4 in combination, according to the embodiment of the utility model discloses a drying air channel is provided, including casing 1, heat pipe group 2, construct condensing channel 11, heating channel 12 in the casing 1, heat pipe group 2 has heat pipe cold junction, heat pipe hot junction, the heat pipe cold junction is in condensing channel 11, the heat pipe hot junction is in heating channel 12, heat pipe group 2 adopt among the prior art heat pipe combination can, the utility model discloses do not do the special restriction, drying air channel still includes semiconductor refrigeration piece 4, semiconductor refrigeration piece 4's hot junction and cold junction are in respectively in heating channel 12, condensing channel 11, thereby realize semiconductor refrigeration piece 4 with heat pipe group 2's common condensation, heating action. In the technical scheme, the heat pipe cold end and the heat pipe hot end of the heat pipe group 2 are respectively and correspondingly arranged in the heating channel 12 and the condensing channel 11 of the drying air channel, the temperature difference between the cold quantity of the airflow subjected to dehumidification and condensation and the heat pipe hot end can be fully utilized, so that the heat exchange efficiency of the heat pipe group 2 is ensured, the heat of the heat pipe hot end is fully utilized to heat the drying airflow, the heat of the heat pipe group is fully utilized, and meanwhile, the heat pollution phenomenon caused by the fact that the heat pipe hot end is located in the external environment in the prior art is prevented.

The casing 1 may be preferably designed to be a tubular structure with one closed end and one open end, a first partition plate 13 is disposed in the casing 1, a first gap is formed between the first partition plate 13 and the closed end of the casing 1, the casing 1 is partitioned by the first partition plate 13 to form the condensing channel 11 and the heating channel 12, the heat pipe set 2 includes a first heat pipe set 23, the first heat pipe set 23 is connected to the first partition plate 13, at this time, after the drying airflow flows into the drying air duct through the condensing channel 11, heat exchange is performed with the cold ends of the heat pipes to reduce the moisture content in the drying airflow, and after passing through the first gap, the condensed drying airflow enters one side of the heating channel 12 to be heated to become a drying airflow with a higher temperature, and then enters the drum of the clothes drying device to dry the clothes in the drum. The structure of the mode makes full use of the relative position of the cold end and the hot end of the heat pipe, so that the structure of the drying air duct is particularly simple and compact.

Further, a second partition plate 14 is further disposed in the housing 1, the second partition plate 14 is disposed opposite to the first partition plate 13 at an interval, and a second gap is formed between the second partition plate 14 and the closed end of the housing 1, the heat pipe set 2 further includes a second heat pipe set 24, the second heat pipe set 24 is connected to the second partition plate 14, the gap between the first partition plate 13 and the second partition plate 14 forms the condensation channel 11, and the heating channel 12 is formed between the side of the first partition plate 13 facing away from the second partition plate 14 and the housing 1. That is, at this time, a structural form that the condensation channel 11 is located between the two heating channels 12 is formed in the drying air duct, the first heat pipe set 23 and the second heat pipe set 24 are arranged in a mirror image manner, and the heating channels 12 are arranged in a mirror image manner with respect to the condensation channel 11, so that the dehumidification and heating efficiencies of the drying air duct are improved, and meanwhile, the structure is simple and compact. At this time, it can be understood that the drying air flow in the condensing channel 11 will be deflected into the heating channel 12 (through the first gap and the second gap, respectively) under the action of the closed end of the housing 1, and preferably, a flow guiding structure is provided at the closed end, the flow guiding structure is used for deflecting and guiding the air flow in the condensing channel 11 into the heating channel 12, so as to increase the smoothness of the drying air flow from the condensing channel 11 to the heating channel 12, specifically, the flow guiding structure comprises a base plate 31, the edge area of the base plate 31 is higher than the middle area, the side of the base plate 31 facing the opening end of the housing 1 is provided with a plurality of flow guiding ribs 32, the plurality of flow guiding ribs 32 extend from the middle area to the edge area, while it can be understood that the middle area is opposite to the outlet of the condensing channel 11, the edge regions correspond to the heating channels 12, so that the flow guide ribs 32 can guide the air flow in the condensation channel 11 into the heating channels 12, preventing a loss of resistance in the middle region.

Preferably, the first heat pipe set 23 and the second heat pipe set 24 may be provided in multiple sets, and the multiple sets of the first heat pipe set 23 and the second heat pipe set 24 are arranged in a staggered manner along the flow guiding direction of the condensation passage 11. As shown in fig. 1, based on the orientation shown in fig. 1, the first heat pipe set 23 and the second heat pipe set 24 are respectively disposed in an up-down opposite manner, and the cold ends of the corresponding heat pipes are staggered in a horizontal direction, that is, projected along the diversion direction of the condensation channel 11, and the cold ends of the heat pipes of the first heat pipe set 23 and the cold ends of the heat pipes of the second heat pipe set 24 have an intersection, so that the drying airflow in the condensation channel 11 is dehumidified more thoroughly and uniformly by the cold ends of the heat pipes.

As shown in fig. 2, the semiconductor chilling plate 4 includes a first chilling plate 41 and a second chilling plate 42 that are disposed vertically symmetrically, and the connection and disposition of the first heat pipe set 23 and the second heat pipe set 24 are the same, which will not be described herein.

The air flow inlet of the condensation channel 11 is provided with a filter element 5, the outlet of the heating channel 12 is provided with a fan 6, and the filter element 5 is a conventional filter screen, for example, so as to perform necessary filtration on impurities such as cotton wool in the drying air flow entering the drying air channel and prevent adverse effects on the fan 6 at the downstream.

According to the utility model discloses an embodiment still provides a clothing equipment of drying, including foretell stoving wind channel.

According to the embodiment of the utility model, still provide a control method of drying equipment for control foretell drying equipment, include following step:

acquiring a real-time drying temperature Th in the heating channel 12 through a second temperature sensor 72;

comparing with a preset drying temperature Ths;

when Th is less than Ths, the number of the heat pipe set 2 is increased so that Th is equal to Ths.

By adopting the method, the drying temperature in the heating channel 12 can quickly reach the preset drying temperature, so that the drying efficiency of the clothes drying equipment is ensured. Further, after Th ═ Ths, the method further includes: acquiring real-time condensation temperature Tl in the condensation channel 11 through a first temperature sensor 71; comparing with a preset condensing temperature Tls; when Tl is larger than Tls, the operation number of the increased heat pipe set 2 is adjusted to ensure that Tl is less than or equal to Tls. That is, after the drying temperature reached the preset drying temperature, on this basis, the temperature in the condensation channel 11 was further adjusted to expect to be able to reduce the real-time condensation temperature, thereby being able to reduce the moisture content of the drying air flow in the condensation channel 11 as much as possible, which is favorable for further improving the drying efficiency of the clothes drying apparatus.

Further, when the clothes drying equipment comprises the semiconductor refrigeration piece 4, and Th is less than Ths, the clothes drying equipment further comprises: and adjusting the running number of the semiconductor refrigerating sheets 4 to enable Th to be Ths. Preferably, after Th ═ Ths, the method further includes: acquiring real-time condensation temperature Tl in the condensation channel 11; comparing with a preset condensing temperature Tls; when Tl is larger than Tls, the running number of the semiconductor refrigerating sheets 4 is adjusted so that Tl is less than or equal to Tls.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The drying air duct is characterized by comprising a shell (1) and a heat pipe set (2), wherein a condensation channel (11) and a heating channel (12) are constructed in the shell (1), the heat pipe set (2) is provided with a heat pipe cold end and a heat pipe hot end, the heat pipe cold end is located in the condensation channel (11), and the heat pipe hot end is located in the heating channel (12).

2. The drying air duct according to claim 1, characterized in that the casing (1) is a tubular structure with one closed end and one open end, a first partition (13) is arranged in the casing (1) and the first partition (13) has a first gap with the closed end of the casing (1), the first partition (13) divides the casing (1) into the condensation channel (11) and the heating channel (12), and the heat pipe set (2) comprises a first heat pipe set (23), and the first heat pipe set (23) is connected to the first partition (13).

3. The drying air duct according to claim 2, characterized in that a second partition (14) is further provided in the casing (1), the second partition (14) is spaced from the first partition (13) and has a second gap with the closed end of the casing (1), the heat pipe set (2) further includes a second heat pipe set (24), the second heat pipe set (24) is connected to the second partition (14), the gap between the first partition (13) and the second partition (14) forms the condensation channel (11), and the heating channel (12) is formed between the side of the first partition (13) facing away from the second partition (14) and the casing (1).

4. Drying air duct according to claim 3, characterized in that the first heat pipe set (23) is arranged spaced apart from the second heat pipe set (24) in a staggered manner along the flow guiding direction of the condensation channel (11).

5. The drying air duct according to claim 3, characterized in that the closed end has a flow guide structure for deflecting the air flow in the condensation duct (11) into the heating duct (12).

6. Drying air duct according to claim 5, characterized in that the flow guiding structure comprises a base plate (31), the edge area of the base plate (31) being higher than the middle area.

7. The drying air duct according to claim 6, characterized in that the base plate (31) is provided with a plurality of flow guiding ribs (32) on a side facing the open end of the casing (1).

8. The drying air duct according to any one of claims 1 to 7, characterized by further comprising a semiconductor refrigeration sheet (4), wherein a hot end and a cold end of the semiconductor refrigeration sheet (4) are respectively located in the heating channel (12) and the condensing channel (11); and/or a filtering piece (5) is arranged at the airflow inlet of the condensation channel (11), and/or a fan (6) is arranged at the outlet of the heating channel (12).

9. A clothes drying apparatus comprising a drying air duct, wherein the drying air duct is the drying air duct of any one of claims 1 to 8.