CN218756643U - Clothes treating apparatus - Google Patents

Abstract

The embodiment of the utility model relates to life electrical apparatus technical field, especially, relate to a clothing treatment facility, it includes the shell and sets up the heat exchanger structure in the shell, the heat exchanger structure includes fin group and at least one heat exchange tube, the heat exchange tube is aluminium system heat exchange tube, fin group is aluminium system fin group, the heat exchange tube has the medium entry and the medium export that supply heat transfer medium to get into and flow out, it wears to establish the fin hole that the heat exchange tube passed to open on the fin group, the heat exchange tube is including wearing to establish the first pipeline section in the fin group and showing the second pipeline section outside the fin group, first pipeline section and second pipeline section intercommunication, and the external diameter of first pipeline section is greater than the external diameter of second pipeline section, thereby the area of contact in heat exchange tube and fin hole has been increased, the heat exchange efficiency of heat exchanger obtains further promotion, and simultaneously, heat exchange tube and fin group are aluminium system can further improve heat exchange efficiency, and aluminium system material low cost, it is whole recovery to conveniently carry out more.

Description

Clothes treating apparatus

Technical Field

The embodiment of the utility model provides a relate to life electrical apparatus technical field, especially relate to a clothes treatment facility.

Background

A heat exchanger structure is provided in a laundry treating apparatus such as a clothes dryer on the market to perform heat exchange. The heat exchanger structure comprises a heat exchange tube and fins, the heat exchange tube is arranged in fin holes of the fins in a penetrating mode, a heat exchange medium is arranged in the heat exchange tube, and the heat exchange medium exchanges heat with the outside through the heat exchange tube and the fins.

However, the heat transfer capacity between the heat exchange tubes and the fins of the existing heat exchanger structure is poor, so that the heat exchange efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem or at least partially solve the technical problem, an embodiment of the present invention provides a clothes treatment apparatus.

The embodiment of the utility model provides a clothes treatment device, which comprises a shell and a heat exchanger structure arranged in the shell;

the heat exchanger structure comprises a fin group and at least one heat exchange tube, wherein the heat exchange tube is an aluminum heat exchange tube, and the fin group is an aluminum fin group;

the heat exchange tube is provided with a medium inlet for a heat exchange medium to enter and a medium outlet for the heat exchange medium to flow out, the fin group is provided with a fin hole for the heat exchange tube to pass through, the heat exchange tube comprises a first tube section arranged in the fin group in a penetrating mode and a second tube section exposed outside the fin group, the first tube section is communicated with the second tube section, and the outer diameter of the first tube section is larger than that of the second tube section.

The embodiment of the utility model provides a clothing treatment facility, the heat exchange tube through making heat exchanger structure is including wearing to establish the first pipeline section in the fin group and showing the second pipeline section outside the fin group, and the external diameter that makes first pipeline section is greater than the external diameter of second pipeline section, thereby the area that is located the heat exchange tube in the fin group has been increased, and the area of contact in heat exchange tube and fin hole increases, heat transfer area between heat exchange tube and the fin hole increases promptly, thereby under the condition that does not change whole heat exchanger structure's outline size, heat exchange efficiency of heat exchanger structure can further be promoted. Meanwhile, the heat exchange tube and the fin group are made of the same materials and are made of aluminum materials, the heat exchange efficiency between the heat exchange tube and the fin group is further improved through aluminum-aluminum contact, the heat exchange tube and the fin group are made of the aluminum materials, the cost is low, and the integral recovery of the heat exchanger structure is more convenient.

Optionally, the difference between the outer diameter of the first pipe section and the outer diameter of the second pipe section is 0.2mm-0.6mm.

Optionally, the inner diameter of the first pipe section is larger than the inner diameter of the second pipe section.

The arrangement is that the heat exchange medium flowing into the first pipe section is increased, so that the heat exchange efficiency of the heat exchanger structure is further improved.

Optionally, the number of the heat exchange tubes is at least two, and the at least two heat exchange tubes are arranged on the fin group at intervals.

The heat of heat exchange medium in the heat exchange tube that can further promote fin group absorption to a certain extent in setting like this to further promote the heat transfer efficiency between heat exchange tube and the fin group.

Optionally, the ends of at least two adjacent second pipe sections are connected by a connecting joint pipe.

The heat exchange tubes can be communicated by the aid of the arrangement, so that heat exchange efficiency of the heat exchanger structure is further improved, compared with a scheme that the heat exchange tubes are not communicated, the structure is simplified, and connection is more convenient.

Optionally, the second pipe section is connected with the connecting joint pipe in a welding manner.

The connection tightness of the heat exchange tube and the connection joint tube and the structural strength of the joint can be further guaranteed by the arrangement, and the connection is convenient.

Optionally, the second pipe section and the connecting joint pipe are connected by brazing.

The brazing connection mode has little influence on the structure, the performance and the shape of a welding material, and a welding part is flat and smooth and has beautiful appearance.

Optionally, the second pipe section and the connecting joint pipe are brazed in a mode of melting aluminum-silicon welding rods;

and/or the brazing flux is sodium fluoroaluminate, and the brazing flux is used for covering the welding position of the second pipe section and the connecting joint pipe before welding.

The aluminum-silicon welding rod has good ductility, is more favorable for the beauty of a welding position on the basis of ensuring the connection strength, and the brazing flux can remove oxides on the surface of a welding material before welding, so that the welding effect is better, and the welding material can be protected simultaneously.

Optionally, the connecting joint pipe is sleeved on the second pipe section;

the joint of one end of the connecting joint pipe close to the first pipe section and the first pipe section is smoothly transited;

by the arrangement, the joint of the connecting joint pipe and the first pipe section can be more flat and attractive.

Optionally, the length of the second pipe section is 1.5mm-2mm.

Optionally, the connecting joint pipe is an aluminum pipe.

The arrangement is beneficial to the reduction of the structural cost of the heat exchanger on the basis of ensuring the heat exchange effect, and the full aluminum structure is beneficial to the recovery processing of the whole machine.

Optionally, the connection joint pipe is an arc joint pipe.

By the arrangement, the heat exchange medium in the connecting joint pipe can flow more smoothly, and the connecting joint pipe can be prevented from being damaged due to stress concentration to a certain extent.

Optionally, the heat exchanger structure further includes a positioning plate, and the positioning plate is disposed on at least one side of the fin group;

the positioning plate is provided with positioning holes for positioning at least the second tube section, and the positioning holes are arranged in one-to-one correspondence with the fin holes.

Set up like this, can play better fixed action to the second pipeline section of heat exchange pipe, the structural stability of heat exchanger structure in the use has been guaranteed, and, the locating hole sets up with fin hole one-to-one, can make the heat exchange tube of wearing to establish on the fin group set up with the locating hole one-to-one, further make the second pipeline section of heat exchange tube better with the contact effect between the locating hole, the area of contact of second pipeline section and locating hole is bigger promptly, can further reduce the thermal contact resistance between second pipeline section and the locating hole, the heat exchange efficiency of heat exchanger structure has been promoted.

Optionally, the fin group includes at least two fins arranged along a preset direction, each fin is provided with at least one fin hole, and the corresponding fin holes on all the fins form a fin channel for the first tube segment to penetrate through; the extending direction of the fin channel is perpendicular to the plane of at least one fin.

Set up like this, can absorb the heat of heat transfer medium in the heat exchange tube through a plurality of fins to increase the heat-conducting medium who flows through fin group, for example the heat transfer area between air current and the fin, make the heat transfer ability of heat exchanger structure further strengthen, fin passageway and the perpendicular assembly that can make heat exchange tube and fin group in fin place plane are more convenient, and can wear to establish more heat exchange tube structures under the unchangeable condition of fin group volume, thereby further promote the heat transfer effect between heat exchange tube and the fin group.

Optionally, the first pipe section is a round pipe, and the fin holes are round holes.

The circumferential fixing effect between the pipe wall of the first pipe section and the hole wall of the fin hole is better and the attaching effect is better.

Optionally, the second pipe section is a round pipe.

Optionally, a reinforcing structure is arranged on the inner wall of the first pipe section.

The arrangement of the reinforcing structure can provide supporting force for the first pipe section so as to further improve the structural strength of the first pipe section.

Optionally, the reinforcing structure comprises at least one reinforcing rib provided on the inner wall of the first pipe section.

Optionally, the reinforcing structure and the first pipe section are of an integrally formed structure.

Set up like this, can reduce the connection structure on the heat exchange tube, further guarantee the overall structure intensity of heat exchange tube.

Optionally, when the reinforcing structure comprises at least one reinforcing rib arranged on the inner wall of the first pipe section, the number of the reinforcing ribs is at least two;

the reinforcing ribs extend along the circumferential direction of the first pipe section, and all the reinforcing ribs are arranged at intervals along the axial direction of the first pipe section;

or, each reinforcing rib extends along the axial direction of the first pipe section, and all the reinforcing ribs are arranged at intervals along the circumferential direction of the first pipe section;

or all the reinforcing ribs are arranged on the inner wall of the first pipe section in a staggered mode to form a grid-shaped structure.

Set up simple structure like this, and can further improve the strengthening effect to first pipeline section to the strengthening rib to guarantee the structural strength of first pipeline section different positions department at bigger within range.

Optionally, the heat exchanger structure is a condenser or an evaporator.

Optionally, the laundry treating apparatus further includes a compressor and a fan, the medium inlet and the medium outlet both being in communication with the compressor;

an air inlet and an air outlet are formed in the shell, a heat exchange air channel is formed between the air inlet and the air outlet, and the fan and the heat exchanger structure are located in the heat exchange air channel.

Optionally, two heat exchanger structures are arranged in the shell, wherein one of the heat exchanger structures is a condenser, and the other heat exchanger structure is an evaporator;

and the evaporator is positioned between the condenser and the air inlet in the direction along the air inlet towards the air outlet.

Set up like this, for example can utilize the evaporimeter to carry out the dehumidification drying to outside air earlier, then pass through the condenser again, reduced the air humidity after the heating, further promoted drying capacity.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the embodiments of the invention and, together with the description, serve to explain the principles of the embodiments of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic perspective view of a heat exchanger structure according to an embodiment of the present invention;

fig. 2 is an exploded view of a part of the structure of a heat exchanger according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a partial structure of a heat exchanger structure according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional exploded view of a partial structure of a heat exchanger structure according to an embodiment of the present invention;

fig. 5 is a schematic view of a connection structure between a heat exchange tube and a fin set of a heat exchanger structure according to an embodiment of the present invention;

fig. 6 is a schematic view of the arrangement of the connection joint pipe of the heat exchanger structure on the fin group according to the embodiment of the present invention;

fig. 7 is a schematic view of an internal structure of a clothes treating apparatus according to an embodiment of the present invention.

Wherein, 1, a shell; 10. a flow of air; 11. a heat exchange air duct; 12. an air inlet; 13. an air outlet; 2. a heat exchanger structure; 2a, an evaporator; 2b, a condenser; 21. a fin set; 21a, a fin; 22. a heat exchange tube; 22a, a first tube section; 22b, a second tube section; 23. connecting a joint pipe; 24. positioning a plate; 24a, positioning holes; 3. a compressor; 4. and a drying cavity.

Detailed Description

In order that the above-mentioned objects, features and advantages of the embodiments of the present invention may be more clearly understood, further description of aspects of the embodiments of the present invention will be made below. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention, but the embodiments of the invention may be practiced otherwise than as described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present invention, and not all of them.

As shown in fig. 1 to 7, the present embodiment provides a laundry treating apparatus comprising a casing 1 and a heat exchanger structure 2 disposed inside the casing 1, the heat exchanger structure 2 comprising a fin group 21 and at least one heat exchange tube 22, the heat exchange tube 22 being an aluminum heat exchange tube, and the fin group 21 being an aluminum fin group.

The laundry treating apparatus may be, for example, an apparatus capable of performing a drying operation on laundry, and a channel through which a heat transfer medium circulates, such as a heat exchange air duct 11 through which air circulates, is typically disposed inside the laundry treating apparatus. The heat exchanger structure 2 is disposed in the casing 1 of the clothes processing apparatus, and specifically, for example, may be disposed on the heat exchange air duct 11 in the casing 1, and is configured to exchange heat with air in the heat exchange air duct 11. In some embodiments, the heat exchanger structure 2 can be detachably assembled in the housing 1, so that later overhauling and disassembly are facilitated.

The heat exchange tube 22 is an aluminum heat exchange tube 22, and the fin group 21 is an aluminum fin group 21, that is, the heat exchange tube 22 and the fin group 21 are both made of all aluminum, and the aluminum structure has a good heat conduction and cold conduction effect.

The heat exchange tube 22 is provided with a medium inlet for the heat exchange medium to enter and a medium outlet for the heat exchange medium to flow out, and the fin group 21 is provided with fin holes for the heat exchange tube 22 to pass through. The heat exchange tube 22 comprises a first tube section 22a penetrating through the fin group 21 and a second tube section 22b exposed outside the fin group 21, the first tube section 22a is communicated with the second tube section 22b, and the outer diameter of the first tube section 22a is larger than that of the second tube section 22b.

The heat exchange pipe 22 is used to circulate a heat exchange medium to serve as an intermediate structure for transferring the cold or heat of the heat exchange medium. In particular, a heat exchange medium is stored in the heat exchange tube 22, and a medium inlet and a medium outlet of the heat exchange tube 22 may be in particular in communication with a power component for providing flow power for the flow of the heat exchange medium, such as a compressor 3 structure of the laundry treatment apparatus.

The first tube section 22a of the heat exchange tube 22 is inserted into the fin group 21, and the second tube section 22b is exposed outside the fin group 21, in some embodiments, fin holes may be penetratingly formed on the fin group 21, the heat exchange tube 22 is inserted into the fin group 21, and both ends of the heat exchange tube 22 have the second tube section 22b exposed outside the fin group 21. Of course, in other embodiments, it is also possible to provide only one side of the fin group 21 with the second tube segment 22b exposed to the outside.

Since the heat exchange tube 22 comprises a first tube section 22a and a second tube section 22b, and the first tube section 22a and the second tube section 22b are in communication, in a realizable manner, one end of the second tube section 22b may then form a medium inlet of the heat exchange tube 22 for the heat exchange medium to enter, and then the other end of the second tube section 22b is in communication with one end of the first tube section 22a, and the other end of the first tube section 22a further forms a medium outlet for the heat exchange medium to exit. When both ends of the heat exchange tube 22 have the second tube sections 22b exposed to the outside of the fin groups 21, the end of the second tube section 22b located at the other end of the first tube section 22a is made to form a medium outlet through which a heat exchange medium flows out.

In a specific implementation, the first tube section 22a of the heat exchange tube 22 is inserted into the fin group 21, that is, the heat exchange tube 22 is connected to the fin group 21 through the first tube section 22 a. In an achievable manner, the first tube segment 22a and the fin hole may be connected by interference fit, that is, the tube wall of the heat exchange tube 22 and the wall of the fin hole are in interference fit. The interference fit mode can make the pipe wall of first pipe section 22a and the pore wall of fin hole tension fit, makes the area of contact between the two further increase to can further reduce the thermal contact resistance between heat exchange tube 22 and the fin hole, promote heat exchanger structure 2's heat exchange efficiency.

Illustratively, the interference fit between the first tube section 22a of the heat exchange tube 22 and the fin hole can be realized by expansion, that is, when the first tube section 22a is inserted into the fin group 21, the first tube section 22a can be directly expanded by the tube expander, so that the first tube section 22a and the fin hole are in expansion tight fit, and the arrangement is quick and convenient to operate. In addition, the first pipe section 22a can be expanded in outer diameter, so that the effect that the outer diameter of the first pipe section 22a is larger than that of the second pipe section 22b can be more conveniently realized. Of course, in other embodiments, the interference fit between the first tube segment 22a and the fin hole may be achieved by other assembling methods.

The clothes treatment equipment provided by the embodiment can be a clothes dryer, a washing and drying all-in-one machine or a nursing cabinet and the like. The heat exchanger structure 2 of the present embodiment will be further described in the present embodiment by taking the clothes treating apparatus as a clothes dryer as an example.

When the heat exchanger structure is applied to a clothes dryer, the heat exchanger structure 2 is arranged in a heat exchange air duct 11 in the clothes dryer and is used for heating air in the heat exchange air duct 11. In a use state, the heat exchange tube 22 transfers heat of a heat exchange medium inside the tube to the fin group 21, when air in the heat exchange air duct 11 flows through the fin group 21, the air absorbs heat on the fin group 21 and the heat exchange tube 22 to realize heating, and the heated air flows through a position where clothes are located, so that the clothes are dried.

At this time, the heat exchanger structure 2, for example, specifically, the condenser 2b, transfers heat of the heat exchange medium to the fin group 21 through the heat exchange tubes 22, and then to the air through the fin group 21, heating the air, thereby drying the laundry. Of course, in other embodiments, the heat exchanger structure 2 can also be an evaporator 2a, for example. Because condenser 2b and evaporimeter 2a all are used for realizing the heat transfer effect, consequently, condenser 2b or evaporimeter 2a adopt the heat exchanger structure 2's of this embodiment mode of setting, and the homoenergetic can realize foretell promotion and leads cold or the effect of heat conduction effect. In some realizable manners, since the condenser 2b and the evaporator 2a are used in combination, both the condenser 2b and the evaporator 2a can be set in the form of the heat exchanger structure 2 of the present embodiment, so that the heat exchange efficiency of both can be improved.

In the heat exchanger structure 2 provided by this embodiment, the heat exchange tubes 22 of the heat exchanger structure 2 include the first tube sections 22a penetrating through the fin groups 21 and the second tube sections 22b exposed outside the fin groups 21, and the outer diameters of the first tube sections 22a are larger than the outer diameters of the second tube sections 22b, so that the area of the heat exchange tubes 22 in the fin groups 21 is increased, and the contact area between the heat exchange tubes 22 and the fin holes is increased, that is, the heat transfer area between the heat exchange tubes 22 and the fin holes is increased, and thus the heat exchange efficiency of the heat exchanger structure 2 can be further improved without changing the outer profile size of the whole heat exchanger structure 2. Meanwhile, the heat exchange tube 22 and the fin group 21 are made of the same material and are made of aluminum, the heat exchange efficiency between the heat exchange tube 22 and the fin group 21 is further improved through aluminum-aluminum contact, the heat exchange tube 22 and the fin group 21 are made of aluminum materials, the cost is low, and the heat exchanger structure 2 is convenient to integrally recover.

In some embodiments, the first tube section 22a and the second tube section 22b of the heat exchange tube 22 may be of an integral structure, that is, the portion of the heat exchange tube 22 located inside the fin group 21 is the first tube section 22a, and the portion of the heat exchange tube 22 located outside the fin group 21 is the second tube section 22b, on this basis, the portion of the first tube section 22a of the heat exchange tube 22 penetrating through the fin group 21 is expanded and deformed by, for example, the expansion joint manner described above, so that the outer diameter of the first tube section 22a is larger than that of the second tube section 22b, which is not only convenient to operate, but also can further ensure the structural strength of the whole heat exchange tube 22.

In some embodiments, the first tube section 22a may be a circular tube, and the fin holes may also be circular holes, so that the circumferential fixing effect between the tube wall of the first tube section 22a and the hole wall of the fin holes is better, and the fitting effect is better. Further, the second pipe section 22b may also be configured as a round pipe. Of course, in other embodiments, the heat exchange tube 22 may have other cross-sectional shapes, and the fin holes may also be provided with other hole types. In this embodiment, the heat exchange tube 22 is a straight tube as a whole, and is convenient for being connected with the fin group 21 in a penetrating manner.

In some embodiments, the difference between the outer diameters of the first tube section 22a and the second tube section 22b can be maintained within a range of 0.2mm to 0.6mm, so that a suitable tube diameter transition difference is formed at the joint of the first tube section 22a and the second tube section 22b, and the structural strength of the heat exchange tube 22 at the joint of the first tube section 22a and the second tube section 22b is further ensured. In the present embodiment, it is adopted to set the difference between the outer diameter of the first tube section 22a and the outer diameter of the second tube section 22b to 0.3mm or 0.4mm.

In some embodiments, the first tube segment 22a may also have an inner diameter greater than the inner diameter of the second tube segment 22b. By means of the arrangement, the heat exchange medium flowing into the first pipe section 22a can be increased, and therefore the heat exchange efficiency of the heat exchanger structure 2 is further improved. In some realizable manners, the difference between the inner diameter of the first tube section 22a and the inner diameter of the second tube section 22b can be maintained within the range of 0.2mm to 0.6mm as well, thereby ensuring the structural strength of the heat exchange tube 22 as a whole. Illustratively, in the present embodiment, the difference between the outer diameter of the first pipe segment 22a and the outer diameter of the second pipe segment 22b is also set to 0.3mm or 0.4mm.

With respect to the arrangement of the heat exchange tubes 22, in some embodiments, the number of the heat exchange tubes 22 may be at least two, and at least two heat exchange tubes 22 are arranged at intervals on the fin group 21. The number of the heat exchange tubes 22 is at least two, so that the heat of the heat exchange medium absorbed by the fin group 21 can be increased to a certain extent, and the heat transfer efficiency between the heat exchange tubes 22 and the fin group 21 is further improved. That is, within a certain range, the greater the number of heat exchange tubes 22, the more heat the fin group 21 can absorb, and the higher the heat exchange efficiency between the fin group 21 and the external heat transfer medium.

When the number of the heat exchange tubes 22 is at least two, in some embodiments, at least two heat exchange tubes 22 may be disposed on the fin group 21 at intervals, for example, all the heat exchange tubes 22 are uniformly distributed on the fin group 21, so that the heat conduction of the heat exchange tubes 22 to the fin group 21 is more uniform, and the heat exchange tubes are also more conveniently arranged, so as to provide more heat exchange tube 22 structures to improve the heat exchange efficiency. Moreover, the structure can be more beautiful and regular due to the uniform distribution mode. In other embodiments, at least two heat exchange tubes 22 can be further arranged in parallel, which is not only more convenient for arrangement, but also can be provided with more heat exchange tubes 22 to improve the heat exchange efficiency.

In some embodiments, when the number of the heat exchange tubes 22 is at least two, the ends of the second tube segments 22b of at least two adjacent heat exchange tubes 22 are connected by the connection joint tube 23. Referring to fig. 2 to 4, the end portions of two adjacent second tube segments 22b herein refer to the end portions located on the same side of the fin group 21. The arrangement can communicate a plurality of heat exchange tubes 22, so that the heat exchange efficiency is further improved, and compared with the scheme that the heat exchange tubes 22 are not communicated, the structure is simplified, and the connection is convenient. In the present embodiment, the end portions of all the adjacent two heat exchange tubes 22 are connected by the connecting joint tube 23, so that all the heat exchange tubes 22 are communicated in sequence, for example, the heat exchange tubes 22 of the whole heat exchanger structure 2 can finally form an integral structure of the sequentially communicated serpentine-like heat exchange tubes 22.

In some embodiments, the connection joint tube 23 may use an aluminum tube. The connecting joint pipe 23 uses an aluminum pipe, which can be more favorable for reducing the cost of the heat exchanger structure 2 and more favorable for the recovery processing of the whole machine on the basis of ensuring the heat exchange effect. Further, providing the connection joint pipe 23 as an aluminum pipe makes it possible to facilitate the connection of the connection joint pipe 23 and the second pipe section 22b. For example, the connection joint pipe 23 and the heat exchange pipe 22 are both aluminum pipes, and the connection between two members made of the same material is more convenient and more reliable. Of course, in other embodiments, other materials for the connection joint tube 23 may be used, such as copper tube.

In some embodiments, the connection joint pipe 23 may specifically adopt an arc joint pipe, which can make the flow of the heat exchange medium smoother and can avoid the situation that the connection joint pipe 23 is damaged due to stress concentration to a certain extent.

When the heat exchange tube 22 and the connecting joint tube 23 are connected, the second tube section 22b and the connecting joint tube 23 can be connected in a welding mode, and the tightness of connection between the second tube section 22b and the connecting joint tube 23 and the structural strength of a joint can be further guaranteed by the arrangement, so that the connection is convenient.

In an achievable manner, the second pipe section 22b is connected to the connection nipple 23 in particular by means of soldering. The brazing mode has lower requirement on the heating temperature during operation, has less influence on the structure and the performance of a welding material, and has the advantages of smoother and smoother welding position, beautiful appearance and less deformation of the welding material.

Specifically, the second pipe section 22b and the connecting joint pipe 23 are brazed by melting aluminum silicon welding rods, that is, the welding rods used for brazing may be aluminum silicon welding rods. The aluminum-silicon welding rod has good ductility, and is more favorable for the beauty of a welding position on the basis of ensuring the connection strength. Of course, in other embodiments, other materials for the welding wire may be used.

In addition, the second pipe section 22b and the joint pipe 23 may be pretreated with a flux before welding, specifically, surface oxides of the welded portion of the second pipe section 22b and the joint pipe 23 may be treated. The flux, i.e. the flux used in brazing, functions to remove oxides from the surface of the welding material while protecting the welding material. In particular, before the welding operation, the flux is coated on the welding position of the second pipe section 22b and the connecting joint pipe 23 before the welding operation, and after the oxide on the surfaces of the second pipe section 22b and the connecting joint pipe 23 is basically completely treated, the brazing operation is carried out by using an aluminum-silicon welding rod. In one achievable manner, the flux may use sodium fluoroaluminate.

In some embodiments, the connection joint pipe 23 may be sleeved on the second pipe section 22b of the heat exchange pipe 22, so as to further ensure the connection reliability between the connection joint pipe 23 and the second pipe section 22b, and to more easily butt the connection joint pipe 23 and the second pipe section 22b.

Since the outer diameter of the first pipe section 22a is larger than the outer diameter of the second pipe section 22b and the connection joint pipe 23 is fitted over the second pipe section 22b, the end of the connection joint pipe 23 close to the first pipe section 22a can be engaged with the end of the first pipe section 22a close to the second pipe section 22b. In an achievable manner, a smooth transition can be made at the junction of the connection nipple 23 and the first pipe section 22 a. By the arrangement, the joint of the first pipe section 22a and the connecting joint pipe 23 can be more flat and beautiful. In some embodiments, the length of the second pipe segment 22b may be 1.5mm to 2mm to facilitate the connection of the sleeve of the adapter tube 23. The length of the second tube section 22b is set to 1.5mm in this embodiment.

In some embodiments, the heat exchanger structure 2 further includes a positioning plate 24, and at least one side of the fin group 21 is provided with the positioning plate 24, and the positioning plate 24 is further provided with a positioning hole 24a for positioning at least the second tube segment 22b, and the positioning holes 24a are arranged in one-to-one correspondence with the fin holes. The second tube section 22b of the heat exchange tube 22 can be better fixed by the positioning plate 24, the structural stability of the heat exchanger structure 2 in the using process is ensured, the positioning holes 24a are arranged in a one-to-one correspondence with the fin holes, namely, the heat exchange tubes 22 arranged in the fin holes are arranged in a one-to-one correspondence with the positioning holes 24a, the contact effect between the second tube section 22b and the positioning holes 24a is further better, namely, the contact area between the second tube section 22b and the positioning holes 24a is larger, the thermal contact resistance between the second tube section 22b and the positioning holes 24a can be further reduced, and the heat exchange efficiency of the heat exchanger structure 2 is improved. For example, the positioning plates 24 may be disposed on both sides of the fin group 21, so that the second tube segments 22b can be positioned and fixed from both sides of the fin group 21.

Since the positioning holes 24a are disposed in one-to-one correspondence with the fin holes, in an achievable manner, the positioning plate 24 can be installed before the connection joint pipes 23 are sleeved, specifically, after the heat exchange pipes 22 are inserted into the fin groups 21, the positioning holes 24a of the positioning plate 24 are disposed in one-to-one correspondence with the fin holes, so that the heat exchange pipes 22 of the fin groups 21 are inserted into the positioning plate 24. Of course, in other realizable manners, the positioning plate 24 and the fin set 21 may be placed correspondingly first, and then the heat exchange tube 22 is inserted.

When the end of the second pipe segment 22b is sleeved with the connection joint pipe 23, since the joint of the connection joint pipe 23 and the first pipe segment 22a is in smooth transition, in some embodiments, the aperture of the positioning hole may be set to be the same as the outer diameter of the connection joint pipe 23, so as to ensure that the positioning plate 24 simultaneously performs a fixing positioning function on the heat exchange pipe 22 and the connection joint pipe 23.

With regard to the arrangement of the fin group 21 in this embodiment, in some embodiments, the fin group 21 may include at least two fins 21a arranged along a preset direction, each fin 21a is provided with at least one fin hole, and the corresponding fin holes of all the fins 21a together form a fin channel for the first tube segment 22a to pass through. The arrangement of the plurality of fins 21a can further increase the heat exchange area between the air flow passing through the fin group 21 and the fins 21a, so that the heat exchange capability of the heat exchanger structure 2 is further enhanced.

At least two fins 21a are arranged along a predetermined direction, a heat exchange gap can be formed between two adjacent fins 21a, and an external heat transfer medium such as air flows through the heat exchange gap between two adjacent fins 21a to exchange heat with the fins 21a.

In an achievable manner, the fin channels may extend in a direction perpendicular to the plane of the at least one fin 21a, that is to say, the heat exchange tubes 22 are perpendicular to the plane of the at least one fin 21a. The arrangement enables the heat exchange tubes 22 and the fin groups 21 to be assembled more conveniently, and more heat exchange tube 22 structures can be arranged on the fin groups 21 in a penetrating manner under the condition that the volume of the fin groups 21 is not changed, so that the heat transfer effect between the heat exchange tubes 22 and the fin groups 21 is further improved.

In some embodiments, the inner wall of the first tube segment 22a is also provided with a reinforcing structure. The arrangement of the reinforcing structure can further improve the structural strength of the first tube section 22a, provide greater supporting acting force for the first tube section 22a, and further ensure the contact effect between the first tube section 22a and the fin holes. Moreover, when the first tube segment 22a is in an interference fit with the fin holes, the tube wall of the first tube segment 22a can better bear the axial clamping force from the fin holes by the arrangement of the reinforcing structure, and the structural stability of the first tube segment 22a is further ensured.

The reinforcing structure may comprise at least one reinforcing bead disposed on the inner wall of the first pipe section 22 a. The reinforcing rib has a simple structure and is convenient to arrange. In some embodiments, the ribs can be integrally formed with the first tube section 22a, so that the body structure of the heat exchange tube 22 can be formed with the ribs when the heat exchange tube 22 is manufactured, for example, by molding, thereby reducing the complexity of the structural arrangement.

When the reinforcing ribs are provided, the number of the reinforcing ribs may be at least two, and each reinforcing rib extends along the circumferential direction of the first pipe section 22a, and all the reinforcing ribs are arranged at intervals along the axial direction of the first pipe section 22 a. This provides a simple construction and further enhances the reinforcing effect to ensure a greater range of structural strength at different locations of the first tube section 22 a. In other realizable manners, the reinforcing ribs may also extend along the axial direction of the first pipe section 22a, and all the reinforcing ribs are arranged at intervals along the circumferential direction of the first pipe section 22a, or all the reinforcing ribs are arranged on the inner wall of the first pipe section 22a in a staggered manner to form a grid-shaped structure, and all the arrangement manners can achieve a better reinforcing and supporting effect on the first pipe section 22 a.

In other embodiments, reinforcing structures may be uniformly distributed on the inner walls of the first tube section 22a and the second tube section 22b, so as to further ensure that the structural strength of the heat exchange tube 22 is uniformly distributed.

For the clothes treatment apparatus provided in this embodiment, in some embodiments, the clothes treatment apparatus further includes a compressor 3 and a fan, the medium inlet and the medium outlet of the heat exchange tube 22 are both communicated with the compressor 3, the housing 1 is formed with an air inlet 12 and an air outlet 13, a heat exchange air duct 11 is formed between the air inlet 12 and the air outlet 13, and the heat exchanger structure 2 and the fan are located in the heat exchange air duct 11.

In the laundry treating apparatus, the compressor 3 serves to compress a heat exchange medium of low temperature and low pressure into a high temperature and high pressure state and provide flowing power so that it can flow into the heat exchanger structure 2. The fan is used for sucking external air into the heat exchange air duct 11 through the air inlet 12 of the heat exchange air duct 11, so that the air can flow between the air inlet 12 and the air outlet 13. The fan may be a circulating fan disposed on the heat exchange air duct 11.

In some embodiments, for example, when the clothes treating apparatus is a clothes dryer, a drying chamber 4 is further disposed in the casing 1 of the clothes treating apparatus, the drying chamber 4 is also located on the heat exchanging air duct 11, and clothes to be dried are placed in the drying chamber 4. The heat exchanger structure 2 is embodied as a condenser 2b, the condenser 2b being adapted to heat an air flow 10 in a heat exchanging air duct 11. Specifically, the compressor 3 compresses a low-temperature and low-pressure heat exchange medium into a high-temperature and high-pressure state, so that the heat exchange medium flows into the condenser 2b, namely flows into the heat exchange tube 22 of the condenser 2b, the fin group 21 of the condenser 2b is in interference fit with the heat exchange tube 22, and heat of the heat exchange medium is transferred to the fins 21a through the heat exchange tube 22. The air flow 10 in the heat exchange air duct 11 passes through the fin group 21 under the action of the fan, and exchanges heat with the fin group 21, so that the air flow 10 is heated. The heated air flow 10 flows into the drying cavity 4 again to heat and dry the clothes in the drying cavity 4.

In which the air flow 10 flows through the condenser 2b, i.e. through the fin groups 21 of the condenser 2b, and the air flows through the gaps between the fins 21a, so as to exchange heat with the fins 21a, in some embodiments, a portion of the first tube section 22a is exposed at the gaps between the fins 21a, so that the air flowing through the fin groups 21 can exchange heat with the first tube section 22a at the same time.

In some embodiments, the heat exchanger structure 2 may also be applied to the evaporator 2a structure at the same time. Specifically, the heat exchange medium flows out of the condenser 2b, changes to a low-temperature high-pressure state, and then flows into the evaporator 2a. The evaporator 2a can condense air due to the low-temperature high-pressure heat exchange medium introduced into the evaporator, so that the air can be dehumidified.

In this embodiment, the condenser 2b and the evaporator 2a are both arranged in the heat exchanger structure 2 provided in the first embodiment, and the evaporator 2a is located between the condenser 2b and the air inlet 12 along the direction from the air inlet 12 to the air outlet 13. The evaporator 2a is used for dehumidifying and drying external air, and then the dried air further flows through the condenser 2b, after the heat exchange medium discharged from the evaporator 2a flows into the compressor 3, the compressor 3 can re-compress the heat exchange medium into a high-temperature and high-pressure state, and then the heat exchange medium flows into the condenser 2b, and the air is heated by flowing through the condenser 2b and then flows into the drying chamber 4.

In other embodiments, the evaporator 2a may be located downstream of the drying cavity 4, and since the air flow 10 carries a part of the water vapor out of the drying cavity 4 after passing through the drying cavity 4, the evaporator 2a is located downstream of the drying cavity 4, which can further improve the moisture removing effect.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the embodiments of the present invention, and is intended to enable those skilled in the art to understand and implement the embodiments of the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments of the invention. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (18)

1. Laundry treatment apparatus, characterized by comprising a casing (1) and a heat exchanger structure (2) arranged inside the casing (1);

the heat exchanger structure (2) comprises a fin group (21) and at least one heat exchange tube (22), the heat exchange tube (22) is an aluminum heat exchange tube, and the fin group (21) is an aluminum fin group;

the heat exchange tube (22) is provided with a medium inlet for a heat exchange medium to enter and a medium outlet for the heat exchange medium to flow out, the fin group (21) is provided with a fin hole for the heat exchange tube (22) to pass through, the heat exchange tube (22) comprises a first tube section (22 a) penetrating through the fin group (21) and a second tube section (22 b) exposed outside the fin group (21), the first tube section (22 a) is communicated with the second tube section (22 b), and the outer diameter of the first tube section (22 a) is larger than that of the second tube section (22 b).

2. The laundry treating apparatus according to claim 1, characterized in that the difference between the outer diameter of the first tube section (22 a) and the outer diameter of the second tube section (22 b) is 0.2-0.6 mm.

3. The laundry treating apparatus according to claim 1, characterized in that the inner diameter of the first pipe section (22 a) is larger than the inner diameter of the second pipe section (22 b).

4. The laundry treating apparatus according to claim 1, wherein the number of the heat exchanging pipes (22) is at least two, and at least two of the heat exchanging pipes (22) are arranged at intervals on the fin group (21).

5. The laundry treating apparatus according to claim 4, characterized in that ends of at least two adjacent second pipe sections (22 b) are connected by a connecting joint pipe (23).

6. The laundry treating apparatus according to claim 5, characterized in that the second pipe section (22 b) is connected with the connecting joint pipe (23) by welding.

7. The laundry treating apparatus according to claim 6, characterized in that the second pipe section (22 b) is connected with the connecting joint pipe (23) by means of brazing.

8. The laundry treating apparatus according to claim 7, characterized in that the second pipe section (22 b) is brazed to the connecting joint pipe (23) by means of a molten aluminum-silicon welding rod;

and/or the brazing flux is sodium fluoroaluminate, and the brazing flux is used for covering the welding position of the second pipe section (22 b) and the connecting joint pipe (23) before welding.

9. The laundry treating apparatus according to claim 5, characterized in that the connecting joint pipe (23) is fitted over the second pipe section (22 b);

the joint of one end of the connecting joint pipe (23) close to the first pipe section (22 a) and the first pipe section (22 a) is in smooth transition;

and/or the length of the second pipe section (22 b) is 1.5mm-2mm.

10. The laundry treating apparatus according to any one of claims 5 to 9, characterized in that the connection joint pipe (23) is an aluminum pipe;

and/or the connecting joint pipe (23) is an arc joint pipe.

11. The laundry treatment apparatus according to any one of claims 1 to 9, characterized in that the heat exchanger structure (2) comprises a positioning plate (24), at least one side of the fin group (21) being provided with the positioning plate (24);

the positioning plate (24) is provided with positioning holes (24 a) used for positioning at least the second tube sections (22 b), and the positioning holes (24 a) and the fin holes are arranged in a one-to-one correspondence mode.

12. The laundry processing apparatus according to any one of claims 1 to 9, wherein the fin group (21) includes at least two fins (21 a) arranged along a preset direction, each fin (21 a) is provided with at least one fin hole, and the corresponding fin holes of all the fins (21 a) form a fin channel for the first pipe section (22 a) to pass through; the extension direction of the fin channel is perpendicular to the plane of at least one fin (21 a);

and/or the first pipe section (22 a) is a round pipe, and the fin holes are round holes;

and/or the second pipe section (22 b) is a round pipe.

13. The laundry treatment apparatus according to any one of claims 1 to 9, characterized in that the inner wall of the first pipe section (22 a) is provided with a reinforcement structure.

14. The laundry treating apparatus according to claim 13, characterized in that the reinforcing structure comprises at least one reinforcing rib provided on an inner wall of the first tube section (22 a);

and/or the reinforcing structure and the first pipe section (22 a) are in an integral molding structure.

15. The laundry processing apparatus according to claim 14, characterized in that, when the reinforcement structure includes at least one reinforcement rib provided on the inner wall of the first pipe section (22 a), the number of the reinforcement ribs is at least two;

the reinforcing ribs extend along the circumferential direction of the first pipe section (22 a), and all the reinforcing ribs are arranged at intervals along the axial direction of the first pipe section (22 a);

or, each reinforcing rib extends along the axial direction of the first pipe section (22 a), and all the reinforcing ribs are arranged at intervals along the circumferential direction of the first pipe section (22 a);

alternatively, all the ribs are staggered on the inner wall of the first pipe section (22 a) to form a grid-like structure.

16. The laundry treatment apparatus according to any one of claims 1 to 9, characterized in that the heat exchanger structure (2) is a condenser (2 b) or an evaporator (2 a).

17. The laundry treatment apparatus according to any one of claims 1 to 9, further comprising a compressor (3) and a fan, the medium inlet and the medium outlet both communicating with the compressor (3);

an air inlet (12) and an air outlet (13) are formed in the shell (1), a heat exchange air channel (11) is formed between the air inlet (12) and the air outlet (13), and the fan and the heat exchanger structure (2) are located in the heat exchange air channel (11).

18. Laundry treatment apparatus according to claim 17, characterized in that two heat exchanger structures (2) are provided within the housing (1), wherein one of the heat exchanger structures (2) is a condenser (2 b) and wherein the other heat exchanger structure (2) is an evaporator (2 a);

the evaporator (2 a) is located between the condenser (2 b) and the intake opening (12) in a direction along the intake opening (12) toward the outlet opening (13).

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