A heat pump clothes dryer

Abstract

The present invention discloses a heat pump clothes dryer, comprising an evaporator, the evaporator including a copper tube and a plurality of heat exchange fins disposed on the copper tube. The heat exchange fins include a first heat exchange fin fixedly connected to the copper tube and a second heat exchange fin detachably connected to the copper tube. The heat exchange fins of the evaporator of the heat pump clothes dryer of the present invention are designed to be detachable, allowing the user to remove the heat exchange fins for cleaning lint, thereby improving the cleanliness of the dryer's air duct system, increasing heat exchange efficiency, and facilitating user operation.

Description

Technical Field

[0001] The present invention belongs to the field of clothes dryers, and in particular relates to a heat pump clothes dryer. Background Art

[0002] As people's quality of life improves, they increasingly pursue a refined, high-quality lifestyle. Clothes dryers have become an essential appliance in more and more households. These appliances use electric heating to instantly evaporate and dry washed clothes. They are particularly useful during winter in northern China and during the return of the south wind in southern China, when clothes are difficult to dry. Furthermore, clothes dryers are widely used in industrial production to dry fabrics and improve production efficiency.

[0003] The working principle of a clothes dryer is to pass a high-temperature airflow over the surface of the clothes to be dried, heating them and carrying away the evaporated moisture, drying them quickly. When the high-temperature airflow passes over the surface of the clothes to be dried in the drum, some fine lint is carried away. These lints circulate in the air circulation system with the drying air, causing a large amount of them to adhere to the heat exchange fins of the evaporator.

[0004] Although filters are installed in front of the evaporator to collect lint generated during the drying process, some tiny lint or dust particles still adhere to the evaporator surface after passing through the filters, reducing the evaporator's heat exchange area, affecting the drying effect, and seriously affecting the normal operation of the system. Furthermore, it is difficult for users to clean the lint on the heat exchange fins.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a heat pump clothes dryer, which solves the problem that lint is attached to the heat exchange fins of the evaporator of the prior art heat pump clothes dryer, seriously affecting the normal operation of the system and making it difficult to clean the lint.

[0007] In order to solve the technical problem, the basic concept of the technical solution adopted by the present invention is:

[0008] A heat pump clothes dryer includes an evaporator. The evaporator includes a copper tube and a plurality of heat exchange fins arranged on the copper tube. The heat exchange fins include a first heat exchange fin fixedly connected to the copper tube and a second heat exchange fin detachably connected to the copper tube.

[0009] After a heat pump dryer has been used for a period of time, lint in the air circulation system will accumulate and remain on the evaporator's heat exchange fins. The evaporator heat exchange fins on the heat pump dryer of the present invention are designed to be detachable, making it easier for users to clean the dryer's interior. After a period of use, users can remove the heat exchange fins from the dryer and reinstall them after cleaning. This improves the cleanliness of the dryer's air circulation system and prevents lint from falling from clothing from long-term adhesion to the evaporator's heat exchange fins, which could affect the normal operation of the air circulation system. This improves the efficiency of the air circulation system and heat exchange efficiency, while also facilitating user operation.

[0010] The heat pump clothes dryer further includes a condenser and a filter respectively arranged at both ends of the evaporator; the first heat exchange fin is arranged on a side close to the condenser, and the second heat exchange fin is arranged on a side close to the filter.

[0011] The heat pump dryer's base is equipped with a filter, evaporator, and condenser, arranged in order from the detachable end. In actual use, due to the dryer's internal airflow system, air flows through the evaporator and then to the condenser. During this process, lint accumulates on the heat exchange fins near the filter. Therefore, only the heat exchange fins near the filter need to be designed as detachable, while the remaining heat exchange fins remain fixed to the evaporator.

[0012] Because the removable heat exchange fins are located outside the evaporator, they are easy to remove. This design reduces the size and weight of the removable part without affecting the lint removal effect, making it easier to remove it from the dryer.

[0013] The copper tubes include a plurality of first copper tubes close to the condenser and a plurality of second copper tubes close to the filter screen; the first heat exchange fins are fixedly connected to the plurality of first copper tubes, and the second heat exchange fins are connected to the plurality of second copper tubes.

[0014] The evaporator is a copper tube evaporator. Both the first and second heat exchange fins are connected to the copper tube, facilitating heat dissipation from the evaporator to the outside. Since the first heat exchange fin does not need to be disassembled, it is directly fixed to the outer wall of the first copper tube located on the inside near the condenser, making installation simple and convenient. The second heat exchange fin needs to be disassembled and installed on the second copper tube located on the outside near the filter.

[0015] The first heat exchange fin is provided with a plurality of mounting holes, the first copper tubes correspond to the mounting holes one by one, and the first copper tubes are fixedly inserted into the corresponding mounting holes.

[0016] A plurality of first copper tubes are passed through the same first heat exchange fin. The first heat exchange fin is firmly installed and is not easy to move on the first copper tube. The installation method is simple and convenient.

[0017] The second heat exchange fin is detachably connected to the second copper tube and / or detachably connected to the first heat exchange fin.

[0018] According to the attachment position of the lint and the user's need to take it, the second heat exchange fin needs to be disassembled. It only needs to be located outside the evaporator. The second heat exchange fin can be installed on the second copper tube or the first heat exchange fin.

[0019] The edge of the first heat exchange fin facing the second heat exchange fin is straight; the edge of the second heat exchange fin facing the first heat exchange fin is straight, and a groove is provided at the edge of the second heat exchange fin facing the first heat exchange fin and at the corresponding position of each second copper tube. Each groove is clamped on the corresponding second copper tube, and the edges of the first heat exchange fin and the second heat exchange fin are in contact to form an integral heat exchange fin.

[0020] The edges where the first heat exchange fin and the second heat exchange fin contact each other are set to be straight, so that the first heat exchange fin and the second heat exchange fin can fit together more closely. The two are seamlessly spliced ​​into a whole piece of heat exchange fin, which will not affect the heat dissipation of the copper tube.

[0021] The second heat exchange fin is mounted on the second copper tube using a snap-on design, making it easy to remove and install. To remove, simply pull the second heat exchange fin toward you. To install, simply align the groove with the second copper tube and press the second heat exchange fin against it.

[0022] The plurality of second copper tubes are located on a side close to the filter screen and are arranged in a row at the outermost end, the entire row of copper tubes.

[0023] The groove on the second heat exchange fin is a U-shaped groove, and the second copper tube is installed at the bottom of the U-shaped groove. This arrangement will not interfere with the connection between the first heat exchange fin and the second heat exchange fin.

[0024] The plurality of second heat exchange fins are provided with connecting pieces, which connect the plurality of second heat exchange fins into a whole.

[0025] Since there are many second heat exchange fins on the evaporator that need to be removed / installed, a connector is used to connect the second heat exchange fins together, making it easier for users to remove / install all the second heat exchange fins at once, improving the efficiency of removing / installing the second heat exchange fins and saving users time. Connecting all the second heat exchange fins into a whole also prevents the loss of the removed second heat exchange fins.

[0026] The connecting member is a connecting rod, and the connecting rod is passed through a plurality of second heat exchange fins.

[0027] Since there are a large number of second heat exchange fins and the distance between all the heat exchange fins is relatively long, a connecting rod is used to connect all the second heat exchange fins together. The connecting rod is rod-shaped, with a small size and weight, which does not add too much weight and is easy for users to pick up.

[0028] The area that the user can hold is limited, and the connecting rod is installed on the second heat exchange fin. When the second heat exchange fin is plugged in / out, the force exerted by the user's hand on the local second heat exchange fin will be evenly distributed on all the second heat exchange fins through the connecting rod.

[0029] The mounting hole on the second heat exchange fin and the connecting rod are interference fit.

[0030] The second heat exchange fin and the connecting rod are fixed together by interference fit, and there is no need to install other components on the second heat exchange fin or the connecting rod. The fixing method is simple, easy to operate, and very practical.

[0031] There are a plurality of connecting rods, and the connecting rods are evenly distributed on the end surface of the second heat exchange fin.

[0032] There are several connecting rods, which can make the fixation between all the second heat exchange fins more secure.

[0033] There are specifically two connecting rods, which are respectively arranged at two ends of the second heat exchange fin.

[0034] After adopting the technical solution, the present invention has the following beneficial effects compared with the prior art.

[0035] After a heat pump dryer has been used for a while, lint from the air circulation system can accumulate on the evaporator's heat exchange fins. The evaporator's heat exchange fins in the heat pump dryer of this invention are designed to be detachable, making it easier for users to clean the dryer's interior. After a period of use, the fins can be removed from the dryer and replaced after cleaning. This improves the cleanliness of the dryer's air circulation system, preventing lint from clothing from clinging to the evaporator's heat exchange fins and affecting the normal operation of the air circulation system. This improves the efficiency of the air circulation system, increases heat exchange efficiency, and facilitates user operation.

[0036] The heat pump dryer's base is equipped with a filter, evaporator, and condenser, arranged in order from the detachable end. In actual use, due to the dryer's internal airflow system, air flows through the evaporator and then to the condenser. During this process, lint accumulates on the heat exchange fins near the filter. Therefore, only the heat exchange fins near the filter need to be designed as detachable, while the remaining heat exchange fins remain fixed to the evaporator.

[0037] Because the removable heat exchange fins are located outside the evaporator, they are easy to remove. This design reduces the size and weight of the removable part without affecting the lint removal effect, making it easier to remove it from the dryer.

[0038] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0040] Figure 1 It is a structural schematic diagram of the heat pump dryer of the present invention.

[0041] Figure 2 It is a schematic diagram of the three-dimensional structure of the evaporator.

[0042] Figure 3 It is a two-dimensional structural diagram of the evaporator.

[0043] Figure 4 yes Figure 3 Cross-sectional view of AA in the figure.

[0044] Figure 5 yes Figure 4 Schematic diagram of the decomposition structure.

[0045] In the figure: 1. first heat exchange fin; 2. first copper tube; 3. second heat exchange fin; 4. second copper tube; 5. groove; 6. connecting rod; 7. evaporator; 8. condenser; 9. base.

[0046] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0048] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0049] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0050] like Figure 2-5 As shown, a heat pump clothes dryer includes an evaporator 7, which includes a copper tube and a plurality of heat exchange fins arranged on the copper tube. The heat exchange fins include a first heat exchange fin 1 fixedly connected to the copper tube and a second heat exchange fin 3 detachably connected to the copper tube.

[0051] After a heat pump dryer has been used for a period of time, lint in the air circulation system will accumulate and remain on the heat exchange fins of the evaporator 7. The heat exchange fins of the evaporator 7 on the heat pump dryer of the present invention are designed to be detachable, making it convenient for the user to clean the interior of the dryer. After a period of use, the user can remove the heat exchange fins from the dryer and put them back in place after cleaning. This improves the cleanliness of the dryer's air circulation system and prevents lint dropped from clothes from adhering to the heat exchange fins of the evaporator 7 for a long time, affecting the normal operation of the air circulation system. This improves the efficiency of the air circulation system and the heat exchange efficiency, while also facilitating user operation.

[0052] like Figure 1 As shown, the heat pump dryer further includes a condenser 8 and a filter respectively arranged at both ends of the evaporator 7; the first heat exchange fin 1 is arranged on a side close to the condenser 8, and the second heat exchange fin 3 is arranged on a side close to the filter.

[0053] The heat pump dryer's base 9 is equipped with a filter, evaporator 7, and condenser 8, arranged in order from the detachable end. In actual use, due to the dryer's internal airflow system, air flows through the evaporator and then to the condenser. During this process, lint accumulates on the heat exchange fins near the filter. Therefore, only the heat exchange fins near the filter are designed to be detachable, while the remaining heat exchange fins remain fixed to the evaporator 7.

[0054] Since the detachable heat exchange fin part is located outside the evaporator 7, it is convenient for the user to disassemble it. This design method reduces the volume and weight of the detachable part without affecting the lint cleaning effect, making it convenient to take it out of the dryer.

[0055] like Figure 2 The copper tubes include several first copper tubes 2 close to the condenser and several second copper tubes 4 close to the filter; the first heat exchange fins 1 are fixedly connected to the several first copper tubes 2, and the second heat exchange fins 3 are connected to the several second copper tubes 4.

[0056] The evaporator is a copper tube evaporator. Both the first and second heat exchange fins are connected to the copper tube, facilitating heat dissipation from the evaporator to the outside. Since the first heat exchange fin does not need to be disassembled, it is directly fixed to the outer wall of the first copper tube located on the inside near the condenser, making installation simple and convenient. The second heat exchange fin needs to be disassembled and installed on the second copper tube located on the outside near the filter.

[0057] like Figure 3 As shown, a plurality of mounting holes are provided on the first heat exchange fin 1 , and the first copper tubes 2 correspond to the mounting holes one by one, and the first copper tubes 2 are fixedly inserted into the corresponding mounting holes.

[0058] A plurality of first copper tubes are passed through the same first heat exchange fin. The first heat exchange fin is firmly installed and is not easy to move on the first copper tube. The installation method is simple and convenient.

[0059] like Figure 4 As shown, the second heat exchange fin 3 is detachably connected to the second copper tube 4 and / or detachably connected to the first heat exchange fin 1 .

[0060] According to the attachment position of the lint and the user's need to take it, the second heat exchange fin needs to be disassembled. It only needs to be located outside the evaporator. The second heat exchange fin can be installed on the second copper tube or the first heat exchange fin.

[0061] like Figure 5 As shown, the edge of the first heat exchange fin 1 facing the second heat exchange fin 3 is straight; the edge of the second heat exchange fin 3 facing the first heat exchange fin 1 is straight, and a groove 5 is provided at the edge of the second heat exchange fin 3 facing the first heat exchange fin 1 and at the corresponding position of each second copper tube 4. Each groove 5 is clamped on the corresponding second copper tube 4, and the edges of the first heat exchange fin 1 and the second heat exchange fin 3 are in contact to form an integral heat exchange fin.

[0062] The edges where the first heat exchange fin and the second heat exchange fin contact each other are set to be straight, so that the first heat exchange fin and the second heat exchange fin can fit together more closely. The two are seamlessly spliced ​​into a whole piece of heat exchange fin, which will not affect the heat dissipation of the copper tube.

[0063] The second heat exchange fin is mounted on the second copper tube using a snap-on design, making it easy to remove and install. To remove, simply pull the second heat exchange fin toward you. To install, simply align the groove with the second copper tube and press the second heat exchange fin against it.

[0064] The plurality of second copper tubes are located on a side close to the filter screen and are arranged in a row at the outermost end, the entire row of copper tubes.

[0065] The groove on the second heat exchange fin is a U-shaped groove, and the second copper tube is installed at the bottom of the U-shaped groove. This arrangement will not interfere with the connection between the first heat exchange fin and the second heat exchange fin.

[0066] The plurality of second heat exchange fins are provided with connecting pieces, which connect the plurality of second heat exchange fins into a whole.

[0067] Since there are many second heat exchange fins on the evaporator that need to be removed / installed, a connector is used to connect the second heat exchange fins together, making it easier for users to remove / install all the second heat exchange fins at once, improving the efficiency of removing / installing the second heat exchange fins and saving users time. Connecting all the second heat exchange fins into a whole also prevents the loss of the removed second heat exchange fins.

[0068] The connecting member is a connecting rod 6, and the connecting rod 6 is passed through a plurality of second heat exchange fins.

[0069] Since there are a large number of second heat exchange fins and the distance between all the heat exchange fins is relatively long, a connecting rod is used to connect all the second heat exchange fins together. The connecting rod is rod-shaped, with a small size and weight, which does not add too much weight and is easy for users to pick up.

[0070] The area that the user can hold is limited, and the connecting rod is installed on the second heat exchange fin. When the second heat exchange fin is plugged in / out, the force exerted by the user's hand on the local second heat exchange fin will be evenly distributed on all the second heat exchange fins through the connecting rod.

[0071] The mounting hole on the second heat exchange fin and the connecting rod 6 are interference fit.

[0072] The second heat exchange fin and the connecting rod are fixed together by interference fit, and there is no need to install other components on the second heat exchange fin or the connecting rod. The fixing method is simple, easy to operate, and very practical.

[0073] There are a plurality of connecting rods 6 ; the connecting rods 6 are evenly distributed on the end surface of the second heat exchange fin.

[0074] There are several connecting rods, which can make the fixation between all the second heat exchange fins more secure.

[0075] There are specifically two connecting rods, which are respectively arranged at two ends of the second heat exchange fin.

[0076] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments with equivalent changes without departing from the scope of the technical solution of the present invention using the technical content suggested above. The implementation schemes in the embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A heat pump clothes dryer comprising an evaporator, and a condenser and a filter respectively disposed at both ends of the evaporator; the evaporator comprising a copper tube and a plurality of heat exchange fins disposed on the copper tube, characterized in that: The heat exchange fins include a first heat exchange fin fixedly connected to the copper tube and a second heat exchange fin detachably connected to the copper tube; the first heat exchange fin is arranged on a side close to the condenser, and the second heat exchange fin is arranged on a side close to the filter.

2. The heat pump dryer according to claim 1, characterized in that: The copper tubes include a plurality of first copper tubes close to the condenser and a plurality of second copper tubes close to the filter screen; the first heat exchange fins are fixedly connected to the plurality of first copper tubes, and the second heat exchange fins are connected to the plurality of second copper tubes.

3. The heat pump dryer according to claim 2, characterized in that: The first heat exchange fin is provided with a plurality of mounting holes, the first copper tubes correspond to the mounting holes one by one, and the first copper tubes are fixedly inserted into the corresponding mounting holes.

4. The heat pump dryer according to claim 2, characterized in that: The second heat exchange fin is detachably connected to the second copper tube and / or detachably connected to the first heat exchange fin.

5. The heat pump dryer according to claim 4, characterized in that: The edge of the first heat exchange fin facing the second heat exchange fin is straight; the edge of the second heat exchange fin facing the first heat exchange fin is straight, and a groove is provided at the edge of the second heat exchange fin facing the first heat exchange fin and at the corresponding position of each second copper tube. Each groove is clamped on the corresponding second copper tube, and the edges of the first heat exchange fin and the second heat exchange fin are in contact to form an integral heat exchange fin.

6. The heat pump clothes dryer according to any one of claims 1 to 5, characterized in that: A plurality of second heat exchange fins are provided with connecting pieces, which connect the plurality of second heat exchange fins into a whole.

7. The heat pump clothes dryer according to claim 6, characterized in that: The connecting member is a connecting rod, and the connecting rod is passed through a plurality of second heat exchange fins.

8. The heat pump clothes dryer according to claim 7, characterized in that: The mounting hole on the second heat exchange fin and the connecting rod are interference fit.

9. The heat pump clothes dryer according to claim 7, characterized in that: There are a plurality of connecting rods, and the connecting rods are evenly distributed on the end surface of the second heat exchange fin.

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