Drying equipment

Abstract

The utility model relates to the technical field of clothes processing equipment, in particular to drying equipment. The problem that a detection head of a sensor of an existing drying device is prone to being covered by impurities such as thread scraps, and consequently detection data is inaccurate is solved. Therefore, the drying equipment comprises a heat pump module and a filtering device, the heat pump module comprises a drying air channel, an evaporator, a condenser and a sensor, the evaporator, the condenser and the sensor are installed in the drying air channel, and the filtering device is installed in the drying air channel and located on the upstream of the evaporator and the sensor. The filtering device is installed in the drying air channel to filter impurities such as thread scraps, the sensor is installed on the downstream portion of the filtering device, and therefore after airflow flowing through the sensor is filtered through the filtering device, the carried impurities such as the thread scraps are greatly reduced, and the drying efficiency is improved. The condition that the detection head of the sensor is covered by impurities such as thread scraps can be effectively avoided, so that the accuracy of detection data of the sensor can be ensured, and accurate data support is provided for operation of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing processing equipment, and specifically provides a drying equipment. Background Art

[0002] Drying equipment refers to a machine that can use hot air to dry clothes. Drying equipment mainly includes washing and drying machines, clothes dryers or drying machines.

[0003] Taking a heat pump washer-dryer as an example, the heat pump module of an existing heat pump washer-dryer mainly includes a fan, a drying duct, and an evaporator and a condenser installed in the drying duct. Under the action of the fan, the airflow circulates between the drying duct and the washing drum. When the airflow flows through the evaporator, the water vapor carried by the airflow is condensed, and the airflow is heated when it flows through the condenser.

[0004] In order to carry out accurate control, the heat pump module also includes a sensor installed in the drying air duct. The sensor is used to detect the humidity and temperature of the airflow in the drying air duct. The sensor is connected to the controller of the heat pump washer-dryer in communication so as to transmit the detected data to the controller in a timely manner. However, due to impurities such as wire scraps in the drying air duct, the sensor's detection head is easily covered, resulting in inaccurate data detected by the sensor.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the above technical problem, that is, to solve the problem that the detection head of the sensor of the existing drying equipment is easily covered by impurities such as wire scraps, resulting in inaccurate detection data.

[0007] In a first aspect, the utility model provides a drying device, which includes a heat pump module and a filtering device. The heat pump module includes a drying air duct and an evaporator, a condenser and a sensor installed in the drying air duct. The evaporator is located upstream of the condenser. The sensor is used to detect the humidity and / or temperature of the airflow in the drying air duct. The filtering device is installed in the drying air duct and upstream of the evaporator and the sensor.

[0008] In the preferred technical solution of the above drying equipment, the sensor is arranged horizontally.

[0009] In the preferred technical solution of the above drying equipment, the detection head of the sensor is arranged downward.

[0010] In a preferred technical solution of the above drying equipment, the sensor is located upstream of the evaporator.

[0011] In the preferred technical solution of the above-mentioned drying equipment, the drying air duct includes a second drying air duct and a first drying air duct, the second drying air duct and the first drying air duct are respectively connected to the air inlet and the air outlet of the fan of the heat pump module, the evaporator and the sensor are arranged in the second drying air duct, and the condenser is arranged in the first drying air duct.

[0012] In the preferred technical scheme of the above-mentioned drying equipment, a first plug interface is provided on the second drying duct, and a second plug interface is provided on the housing of the drying equipment at a position corresponding to the first plug interface, the filtering device includes an outer shell and a filtering component installed in the outer shell, the filtering component can move relative to the outer shell along the length direction of the outer shell, the outer shell is fixedly installed between the housing and the second drying duct, and the two ends of the outer shell are respectively connected to the first plug interface and the second plug interface, the filtering component includes a first bracket, a second bracket and a filter installed on the second bracket, the first bracket and the second bracket are distributed along the length direction of the outer shell and are detachably connected, the first bracket extends to the second plug interface, the second bracket and the filter screen successively pass through the second plug interface and the first plug interface to extend into the second drying duct and are located upstream of the evaporator.

[0013] In the preferred technical solution of the above-mentioned drying equipment, the filtering device also includes a locking pin, which is installed on the first bracket, and a first locking structure is provided on the locking pin, and a second locking structure is provided on the second bracket. When the locking pin is in the locking position, the first locking structure cooperates with the second locking structure to lock the second bracket with the first bracket, and when the locking pin is in the unlocking position, the first locking structure is separated from the second locking structure so as to separate the second bracket from the first bracket.

[0014] In a preferred technical solution of the above drying device, the second drying air duct, the fan and the first drying air duct are all located above the drum module of the drying device.

[0015] In a preferred technical solution of the above drying device, the second drying air duct comprises a second air guide portion, a second air duct and a second air guide pipe which are connected in sequence, the second air guide portion, the second air duct and the second air guide pipe are arranged at the upper rear of the drum module, the evaporator and the sensor are arranged in the second air duct, and the second air guide pipe is connected to the air inlet of the fan; and / or

[0016] The first drying air duct includes a first air guide portion, a first air duct and a first air guide pipe which are connected in sequence, the first air guide portion, the first air duct and the first air guide pipe are arranged on the upper left or upper right of the barrel module, the condenser is arranged in the first air duct, and the first air guide pipe is connected to the air outlet of the fan.

[0017] In the preferred technical solution of the above drying equipment, the caliber of the second air guide pipe gradually narrows from the first end of the second air guide pipe to the second end of the second air guide pipe, the first end of the second air guide pipe is an end connected to the second air duct, and the second end of the second air guide pipe is an end connected to the air inlet of the fan; and / or

[0018] The caliber of the first flow guide pipe gradually widens from the first end of the first flow guide pipe to the second end of the first flow guide pipe. The first end of the first flow guide pipe is an end connected to the air outlet of the fan, and the second end of the first flow guide pipe is an end connected to the first air duct.

[0019] When adopting the above-mentioned technical scheme, the utility model filters impurities such as lint by installing a filtering device in the drying air duct, and installs the sensor downstream of the filtering device. In this way, the airflow flowing through the sensor is filtered by the filtering device, and the impurities such as lint carried are greatly reduced, which can effectively avoid the situation where the detection head of the sensor is covered by impurities such as lint, thereby ensuring the accuracy of the sensor detection data and providing accurate data support for the operation of the equipment.

[0020] Furthermore, the utility model can better avoid the situation where the detection head of the sensor is covered by impurities such as wire scraps by arranging the sensor horizontally.

[0021] Furthermore, the utility model can better avoid the situation where the detection head of the sensor is covered by impurities such as wire scraps by arranging the detection head of the sensor downward.

[0022] Furthermore, the utility model provides plug interfaces on the housing and the second drying duct, so that when the filter device needs to be cleaned, the filter assembly can be pulled out from the second drying duct and the housing. In addition, by arranging the first bracket and the second bracket to be detachably connected, after the first bracket is pulled out, the first bracket and the second bracket are disassembled, and then the second bracket is pulled out, which can reduce the required disassembly space, facilitate user disassembly, and also facilitate cleaning of the filter on the second bracket. In addition, by making the two ends of the outer shell connected to the first plug interface and the second plug interface respectively, when installing the filter assembly, it is convenient to smoothly insert the filter assembly into the second drying duct, and the user experience is better.

[0023] Furthermore, the utility model designs the distribution layout of the heat pump module in the drying equipment, which can ensure that the height of the whole machine remains unchanged while maximizing the use of free space, increasing the volume of the evaporator and the heat exchanger, thereby helping to further improve the drying efficiency.

[0024] Furthermore, the utility model can increase the flow velocity of the airflow by gradually narrowing the diameter of the second air guide pipe in the direction close to the fan, thereby further improving the drying efficiency.

[0025] Furthermore, the utility model can make the airflow and the condenser have more sufficient heat exchange, increase the temperature of the airflow, and further improve the drying efficiency by gradually widening the diameter of the first air guide pipe in the direction close to the condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0027] Figure 1 This is a schematic diagram of the overall structure of the heat pump washer-dryer of the utility model; (the top plate of the box is omitted)

[0028] Figure 2 This is a schematic diagram of the internal structure of the heat pump washer-dryer of the utility model; (the box is omitted)

[0029] Figure 3 This is a schematic diagram of the assembly of the heat pump module and the filter device in the heat pump washer-dryer of the utility model. Figure 1 ;

[0030] Figure 4 This is a schematic diagram of the assembly of the heat pump module and the filter device in the heat pump washer-dryer of the utility model. Figure 2 ;

[0031] Figure 5 This is a schematic diagram of the structure of the filter device in the heat pump washer-dryer of the utility model. Figure 1 ;

[0032] Figure 6 This is a schematic diagram of the structure of the filter device in the heat pump washer-dryer of the utility model. Figure 2 ; (omit the shell)

[0033] Figure 7 It is a structural schematic diagram of a second bracket and a locking pin in a heat pump washer-dryer of the utility model;

[0034] Figure 8 It is a structural schematic diagram of a locking pin of a filter device in a heat pump washer-dryer of the utility model;

[0035] Fig. 9It is a structural schematic diagram of the second drying air duct in the heat pump washer-dryer of the present invention.

[0036] List of reference numerals:

[0037] 1. Box body; 11. Second plug interface;

[0038] 2. Cylinder module;

[0039] 3. Heat pump module;

[0040] 31. second drying air duct; 311. second air guide; 312. second air duct; 313. second air guide pipe; 3121. first plug interface; 3122. fresh air inlet;

[0041] 32. Fan;

[0042] 33. first drying air duct; 331. first air duct; 332. first air guide portion; 333. first air guide pipe; 3321. fresh air outlet; 3331. air guide structure;

[0043] 34. Evaporator; 35. Condenser; 36. Compressor; 37. Sensor;

[0044] 4. Filter device; 41. First bracket; 42. Second bracket; 43. Housing; 44. Lock pin; 441. First locking structure; 421. First filter frame; 422. Second filter frame; 4211. Second locking structure. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the following content is described in conjunction with a heat pump washer-dryer, the technical solution of the present invention is also applicable to other types of drying equipment, such as a heat pump dryer, etc. Such adjustments and changes to the application object do not deviate from the principle and scope of the present invention and should be limited within the scope of protection of the present invention.

[0046] It should be noted that in the description of the present invention, the terms "inside", "upper", "lower", "front", "rear", "longitudinal", "lateral", "top", "bottom" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, ordinal numbers such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Reference Figures 1 to 8 , a specific preferred implementation manner of the utility model is described.

[0049] like Figure 1 and Figure 2 As shown, the heat pump washer-dryer of the present invention includes a housing 1, a drum module 2 (also referred to as an outer drum or a washing drum) and a heat pump module 3 arranged in the housing 1. The heat pump module 3 can supply hot air to the drum module 2 to dry the clothes.

[0050] like Figures 2 to 4 As shown, the heat pump module 3 of the utility model includes a drying air duct and a fan 32, wherein the drying air duct includes a second drying air duct 31 and a first drying air duct 33, the second drying air duct 31, the fan 32 and the first drying air duct 33 are connected in sequence, an evaporator 34 is arranged in the second drying air duct 31, a condenser 35 is arranged in the first drying air duct 33, and the drum module 2 is provided with a first air outlet (not shown in the figure) connected to the second drying air duct 31 and a second air outlet (not shown in the figure) connected to the first drying air duct 33.

[0051] In this embodiment, the hot and humid air in the drum module 2 circulates under the action of the fan 32, enters the second drying duct 31, the first drying duct 33, and the second air outlet into the drum module 2 in sequence, and under the action of the evaporator 34, the moisture in the hot and humid air is condensed and separated from the airflow, and under the action of the condenser 35, the temperature of the air is increased to supply hot air to the drum module 2, thereby drying the clothes in the drum module 2 and further drying the clothes.

[0052] It should be noted that the drying air duct of the present invention is not limited to the two-stage structure described above. Those skilled in the art can also set the drying air duct as a whole-stage structure in actual application. In this case, the fan can be installed on the first air outlet or the second air outlet, and then the fan is connected to the second air outlet or the first air outlet through the drying air duct. Of course, the present invention preferably sets the drying air duct as the second drying air duct and the first drying air duct described above, and the fan is set between the second drying air duct and the first drying air duct.

[0053] Preferably, if Figure 1 and Figure 2 As shown, the second drying air duct 31 , the fan 32 and the first drying air duct 33 are all arranged above the drum module 2 .

[0054] Furthermore, if Figures 2 to 4 As shown, the second drying air duct 31 includes a second air guide portion 311 and a second air duct 312 that are connected. The second air guide portion 311 and the second air duct 312 are arranged at the upper rear of the barrel module 2, that is, close to the rear end of the barrel module 2. The evaporator 34 is arranged in the second air duct 312. The first air outlet is arranged at the upper rear of the barrel module 2, that is, the first air outlet is also arranged close to the rear end of the barrel module 2, so as to facilitate the second air guide portion 311 to be connected with the first air outlet. The second air duct 312 extends in the horizontal direction, and the extension direction of the second air duct 312 is perpendicular to the axial direction of the barrel module 2.

[0055] The second air guide portion 311 and the second air duct 312 are preferably configured to be detachably fixedly connected.

[0056] Furthermore, if Figures 2 to 4 As shown, the first drying air duct 33 includes a first air duct 331 and a first air guide 332 which are connected. The first air guide 332 and the first air duct 331 are arranged at the upper left or upper right of the barrel module 2. The condenser 35 is arranged in the first air duct 331. The second air outlet is arranged at the upper front of the barrel module 2, that is, the second air outlet is arranged near the front end of the barrel module 2, and the first air guide 332 is connected to the second air outlet. The first air duct 331 also extends in the horizontal direction, and the extension direction of the first air duct 331 is parallel to the axial direction of the barrel module 2, that is, the extension direction of the first air duct 331 is perpendicular to the extension direction of the second air duct 312, and the two heat exchange air ducts are arranged in an approximately L shape.

[0057] The first air duct 331 and the first air guide portion 332 are preferably configured to be detachably fixedly connected.

[0058] This embodiment is aimed at the structural characteristics of the space above the drum module 2 in the box body 1. Specifically, taking a drum-type heat pump washer-dryer as an example, a clothes treatment agent delivery box generally needs to be set in the front space of the upper left, and accordingly, there is a certain amount of free space in the upper back and upper right. Therefore, the heat pump washer-dryer of this embodiment sets the second drying air duct 31 in the upper back space, the first drying air duct 33 in the upper right, and the fan 32 between the second drying air duct 31 and the first drying air duct 33, located at the upper right corner, according to the characteristics of the internal space of the box body 1. From the perspective of the overall layout, the second drying air duct 31, the fan 32 and the first drying air duct 33 are vertically distributed as a whole, which can maximize the use of free space and ensure that the height of the heat pump washer-dryer remains unchanged.

[0059] It should be noted that the front end of the drum module 2 has a clothing access opening, and those skilled in the art may regard the clothing access opening as the second air outlet, even if the first air guide portion 332 is connected to the clothing access opening, or may also be as follows: Figure 2 As shown, a separate air outlet is opened on the upper front of the barrel module 2 as the second air outlet. Such adjustments and changes to the specific setting form of the second air outlet do not deviate from the principle and scope of the present utility model and should be limited within the protection scope of the present utility model.

[0060] Furthermore, in order to improve the heat exchange efficiency as much as possible within a limited space and ensure the drying effect, it is necessary to increase the heat exchange body of the evaporator 34 and the condenser 35 as much as possible. Therefore, the second air duct 312 and the first air duct 331 have external contours adapted to the space in which they are located, so that the heat exchange body of the evaporator 34 accommodated in the second air duct 312 and the heat exchange body of the condenser 35 accommodated in the first air duct 331 can be increased as much as possible.

[0061] Specifically, Figure 2 and Figure 3 As shown, the second air duct 312 is arranged at the upper rear of the barrel module 2, approximately at the middle position of the barrel module 2, and because the barrel module 2 is a cylindrical structure, it is approximately in a plane at the middle position of the cylindrical structure, so the second air duct 312 is approximately in a rectangular structure, that is, the second air duct 312 is approximately flat, and the cross section is approximately rectangular. Accordingly, the heat exchange body of the evaporator 34 inside it is arranged in a regular rectangular shape. The first air duct 331 is arranged at the upper right of the barrel module 2. In order to adapt to the cylindrical structure of the barrel module 2 and make full use of this part of the space, the first air duct 331 is set to a non-rectangular structure, that is, in this part of the space, the first air duct 331 is set to a "7"-shaped structure, that is, a structure that is wide at the top and narrow at the bottom, and the surface of the first air duct 331 close to the barrel module 2 is set to an inner concave arc surface, and the inner concave arc surface is coaxial with the barrel module 2. Accordingly, the heat exchange body of the condenser 35 inside it is also arranged in a "7"-shaped structure.

[0062] It should be noted that the shapes of the second air duct 312 and the first air duct 331 described above and the arrangement shapes of the heat exchange bodies corresponding to the evaporators 34 and condensers 35 respectively arranged therein are only exemplary. Those skilled in the art may also make arrangements in other shapes according to actual conditions. As long as the space between the box body 1 and the barrel module 2 can be fully utilized, the bottom contours of the second air duct 312 and the first air duct 331 can match the barrel wall contour of the barrel module 2, and the heat exchange body inside the heat exchange air duct can maximize the heat exchange efficiency, the present invention does not impose any restrictions on this.

[0063] Furthermore, the fan 32 is arranged at the upper right corner. In order to make full use of this part of the space, the fan 32 is arranged vertically, and the central axis of the air inlet of the fan 32 (that is, the axis of the impeller of the fan 32) extends horizontally along the transverse direction of the box body 1, that is, perpendicular to the axial direction of the barrel module 2, and the central axis of the air outlet of the fan 32 (the central axis of the air outlet of the fan 32 is perpendicular to the axis of the impeller of the fan 32) extends horizontally along the longitudinal direction of the box body 1, that is, parallel to the axial direction of the barrel module 2. In other words, the extension of the central axis of the air inlet of the fan 32 The direction is the same as the extension direction of the second air duct 312, the extension direction of the central axis of the air outlet of the fan 32 is the same as the extension direction of the first air duct 331, the second drying air duct 31 is connected with the air inlet of the fan 32, and the first drying air duct 33 is connected with the air outlet of the fan 32. In this way, the second drying air duct 31 and the first drying air duct 33 are relatively vertically distributed with the fan 32 as the center, which can maximize the use of the free space between the box body 1 and the drum module 2, so as to further ensure that the overall height size of the heat pump washer-dryer remains unchanged.

[0064] In addition, the second guide portion 311 and the first guide portion 332 are arranged in a manner that can fully utilize the space between the box body 1 and the cartridge module 2. Specifically, Figure 1 and Figure 2 As shown, the second guide portion 311 and the first guide portion 332 are both configured as bent structures, and the surface close to the barrel module 2 is configured as an inner concave arc surface, which is adapted to the barrel wall surface of the barrel module 2. The second guide portion 311 and the first guide portion 332 are preferably made of flexible materials, such as rubber tubes.

[0065] Furthermore, the second air guide 311, the second air duct 312, the fan 32, the first air duct 331 and the first air guide 332 are spaced apart from the barrel wall of the barrel module 2 to ensure a safe distance from the barrel module 2, thereby ensuring their respective normal operation.

[0066] Preferably, if Figures 2 to 4As shown, the second drying air duct 31 of the utility model further includes a second air guide pipe 313, a first end of the second air guide pipe 313 is communicated with the second air duct 312, and a second end of the second air guide pipe 313 is communicated with the air inlet of the fan 32. The caliber of the second air guide pipe 313 gradually narrows from the first end of the second air guide pipe 313 to the second end of the second air guide pipe 313, so that the air can be gathered to the air inlet of the fan 32.

[0067] The extending direction of the second air guide tube 313 is consistent with the extending direction of the second air duct 312. It should be noted that the second air guide tube 313 and the second air duct 312 can be fixedly connected, or can also be integrally arranged.

[0068] Preferably, if Figures 2 to 4 As shown, the first drying air duct 33 of the utility model further includes a first air guide pipe 333, a first end of the first air guide pipe 333 is communicated with the air outlet of the fan 32, and a second end of the first air guide pipe 333 is communicated with the first air duct 331. The caliber of the first air guide pipe 333 gradually widens from the first end of the first air guide pipe 333 to the second end of the first air guide pipe 333, so that the air flowing out of the air outlet of the fan 32 can diffuse into the first air duct 331.

[0069] The extending direction of the first air guide tube 333 is consistent with the extending direction of the first air duct 331. It should be noted that the first air guide tube 333 and the first air duct 331 can be fixedly connected, or can also be integrally arranged.

[0070] Furthermore, if Figure 4 As shown, a guide structure 3331 is provided in the first guide tube 333 to guide the air, so that the air flowing out through the air outlet of the fan 32 can be evenly diffused into the first air duct 331, so that the air can flow evenly through the condenser 35, avoiding the air from gathering in a certain area of ​​the condenser 35, achieving uniform heat exchange, and ensuring heat exchange efficiency.

[0071] Preferably, if Figure 4 As shown, the flow guiding structure 3331 is configured as a plate-like structure.

[0072] The guide structure 3331 extends from the air inlet end of the first guide pipe 333 to the windward end surface of the condenser 35 .

[0073] It should be noted that each guide structure 3331 can be a curved plate-like structure or a straight plate-like structure.

[0074] Preferably, if Figure 4As shown, a plurality of guide structures 3331 are arranged in the first guide tube 333. The plurality of guide structures 3331 are spaced apart along a flow direction perpendicular to the airflow. The plurality of guide structures 3331 divide the interior of the first guide tube 333 into a plurality of guide channels. The airflow flowing out through the air outlet of the fan 32 can flow through the heat exchange body of the condenser 35 through each guide channel respectively to perform uniform heat exchange.

[0075] For example, Figure 4 As shown, there are two flow guiding structures 3331 , and the two flow guiding structures 3331 divide the interior of the first flow guiding tube 333 into three flow guiding channels.

[0076] Preferably, if Figure 2 As shown, the heat pump module 3 of the present invention further includes a compressor 36 , which is disposed below the cartridge module 2 .

[0077] Exemplarily, the compressor 36 is vertically arranged at the lower left of the barrel module 2. Of course, the compressor 36 can also be horizontally arranged as long as it can be installed in the lower space between the barrel module 2 and the box body 1. The compressor 36, the evaporator 34 and the condenser 35 are connected to each other to form a refrigerant circulation loop. The refrigerant exchanges heat with the hot and humid air flowing through the evaporator 34, which can condense the moisture in the hot and humid air and separate it from the airflow. The refrigerant exchanges heat with the air flowing through the condenser 35, which can increase the temperature of the air, thereby supplying hot air to the barrel module 2.

[0078] The above-mentioned implementation manner and various extended embodiments, by designing the distribution layout of the heat pump module 3 in the heat pump washer-dryer, can ensure that the free space is utilized to the maximum extent while the height of the whole machine remains unchanged, and at the same time, the heat exchange efficiency is improved as much as possible within the limited space to ensure the drying effect. In addition, the various components in the heat pump module 3 are connected in a detachable fixed manner, especially the evaporator 34 and the condenser 35 are designed in a split type, which is conducive to individual replacement and saves costs compared with the existing heat pump module 3 that adopts a modular setting.

[0079] Preferably, if Figure 4 As shown, the second drying air duct 31 of the present invention is provided with a fresh air inlet 3122 , and the fresh air inlet 3122 is located between the evaporator 34 and the fan 32 .

[0080] By arranging a fresh air inlet 3122 on the second drying air duct 31, external dry fresh air can be introduced during the drying process, which is beneficial to improving the drying efficiency. In addition, by arranging the fresh air inlet 3122 between the evaporator 34 and the fan 32, more fresh air can be introduced, and the temperature of the incoming fresh air will not be affected by the temperature of the evaporator 34, which is more beneficial to improving the drying efficiency.

[0081] For example, Figure 4 As shown, the fresh air inlet 3122 is arranged on the second air guide pipe 313. Of course, those skilled in the art can also arrange the fresh air inlet 3122 on the second air duct 312.

[0082] Preferably, if Figure 4 As shown, a fresh air outlet 3321 is provided on the first drying air duct 33 , and the fresh air outlet 3321 is located downstream of the condenser 35 .

[0083] After washing the clothes, if the user does not take out the clothes in time, the fan 32 can be started, and the compressor 36 can not be started, so that the airflow circulates in the drum module 2 and the drying air duct, and fresh air continuously enters from the fresh air inlet 3122, and part of the airflow will be discharged from the fresh air outlet 3321 to avoid the danger of excessive air pressure in the drum module 2. In addition, by setting the fresh air outlet 3321 downstream of the condenser 35, wind resistance can be reduced and assembly is facilitated.

[0084] Preferably, the heat pump washer-dryer of the present invention also includes an exhaust duct (not shown in the figure) and an electric control valve installed on the exhaust duct, one end of the exhaust duct is connected to the fresh air outlet 3321, and the other end of the exhaust duct is connected to the outside of the box 1, and the electric control valve is used to control the on and off state of the exhaust duct.

[0085] By setting an exhaust duct connected to the fresh air outlet 3321, the humid air exhausted from the fresh air outlet 3321 can be directly guided to the outside of the box 1 to avoid excessive humidity inside the box 1. In addition, when there is no need to exhaust air through the fresh air outlet 3321, the electric control valve is in a closed state.

[0086] Preferably, an exhaust port (not shown in the figure) is provided on the front panel of the box body 1, and the other end of the exhaust pipe is connected to the exhaust port.

[0087] By arranging an exhaust port on the front panel of the box body 1, the exhaust port is connected with the fresh air outlet 3321 through the exhaust pipe, and the air exhausted from the fresh air outlet 3321 is exhausted from the front side of the box body 1, which is conducive to rapid diffusion.

[0088] Preferably, the heat pump washer-dryer of the present invention also includes a clothing treatment agent delivery box and a pressure relief pipe (not shown in the figure), the first end of the pressure relief pipe is connected to the drum module 2, the second end of the pressure relief pipe is connected to the clothing treatment agent delivery box, and a water seal pipe section is provided between the first and second ends of the pressure relief pipe, and the height of the water seal pipe section is lower than the first and second ends of the pressure relief pipe to form a water seal in the water seal pipe section.

[0089] Among them, the clothing treatment agent delivery box is used to deliver clothing treatment agents (such as detergents, softeners, etc.). During the drying process, due to the entry of fresh air, the pressure in the drum module 2 gradually increases. Under the action of this pressure, the water in the water seal pipe section gradually moves toward the second end of the pressure relief pipe until the water is discharged from the pressure relief pipe. The airflow in the drum module 2 enters the clothing treatment delivery box along the pressure relief pipe, and is discharged to the outside of the casing 1 through the clothing treatment agent delivery box to achieve pressure relief.

[0090] Preferably, the heat pump washer-dryer of the present invention also includes a drain pipe and a drain pump connected to the drain pipe, the drain pipe is connected to the drum module 2, the heat pump washer-dryer also includes a pressure sensor, the pressure sensor is used to detect the pressure in the drum module 2, and the pressure sensor is communicatively connected to the drain pump.

[0091] During the drying process, the pressure in the drum module 2 is detected by the pressure sensor. When the pressure in the drum module 2 exceeds a set upper limit, the drainage pump is started to release the pressure.

[0092] It should be noted that the pressure sensor can be communicatively connected to the controller of the heat pump washer-dryer, and the data detected by the pressure sensor is transmitted to the controller, which performs calculations and analysis. When the pressure in the drum module 2 exceeds the set upper limit value, the controller controls the drain pump to start pressure relief.

[0093] Preferably, if Figures 1 to 6 As shown, the heat pump washer-dryer of the utility model also includes a filtering device 4, a first plug interface 3121 is provided on the second drying air duct 31, and a second plug interface 11 is provided at a position corresponding to the first plug interface 3121 of the casing 1. The filtering device 4 includes a shell 43 and a filtering component installed in the shell 43, the filtering component can move relative to the shell 43 along the length direction of the shell 43, the shell 43 is fixedly installed between the casing 1 and the second drying air duct 31, and the two ends of the shell 43 are respectively connected to the first plug interface 3121 and the second plug interface 11, the filtering component includes a first bracket 41, a second bracket 42 and a filter screen (not shown in the figure) installed on the second bracket 42, the first bracket 41 and the second bracket 42 are distributed along the length direction of the casing 43 and are detachably connected, the first bracket 41 extends to the second plug interface 11, the second bracket 42 and the filter screen successively pass through the second plug interface 11 and the first plug interface 3121 to extend into the second drying air duct 31 and are located upstream of the evaporator 34.

[0094] The filter device 4 is used to filter the air flow in the second drying air duct 31 and intercept impurities such as lint carried by the air flow. By setting plug interfaces on the box body 1 and the second drying air duct 31, when the filter device 4 needs to be cleaned, the filter component can be pulled out from the second drying air duct 31 and the box body 1. In addition, by setting the first bracket 41 and the second bracket 42 to be detachably connected, after the first bracket 41 is pulled out, the first bracket 41 and the second bracket 42 are disassembled, and then the second bracket 42 is pulled out, which can reduce the required disassembly space and facilitate user disassembly. It is also convenient to clean the filter on the second bracket 42. In addition, by making the two ends of the shell 43 connected to the first plug interface 3121 and the second plug interface 11 respectively, when installing the filter component, it is convenient to smoothly insert the filter component into the second drying air duct 31, and the user experience is better.

[0095] For example, Figures 1 to 3 As shown, the first plug interface 3121 is arranged on the side wall of the second air duct 312 facing the front panel of the box body 1, and the second plug interface 11 is arranged on the front panel of the box body 1. The extension direction of the filter device 4 is parallel to the axis of the drum module 2. In this way, the user can pull out the filter assembly from the front side of the washer-dryer, which is more convenient.

[0096] Preferably, if Figures 6 to 8 As shown, the filtering device 4 of the utility model also includes a locking pin 44, which is installed on the first bracket 41. The locking pin 44 is provided with a first locking structure 441, and the second bracket 42 is provided with a second locking structure 4211. When the locking pin 44 is in the locked position, the first locking structure 441 cooperates with the second locking structure 4211 to lock the second bracket 42 with the first bracket 41. When the locking pin 44 is in the unlocked position, the first locking structure 441 is separated from the second locking structure 4211 so as to disassemble and separate the second bracket 42 from the first bracket 41.

[0097] Exemplarily, a vertically extending receiving groove (not shown in the figure) is provided on the first bracket 41, and the top of the receiving groove is open. The locking pin 44 is installed in the receiving groove and can move up and down in the vertical direction to switch between the locked position and the unlocked position. The first locking structure 441 includes two locking hooks, and the two locking hooks are spaced apart in the vertical direction. The second locking structure 4211 includes two locking holes arranged at the end of the second bracket 42. A reset spring (not shown in the figure) is installed between the bottom of the locking pin 44 and the receiving groove. Under the action of the reset spring, the two locking hooks are respectively inserted into the corresponding locking holes to lock the first bracket 41 and the second bracket 42. When the two brackets need to be disassembled, the locking pin 44 is pressed downward to separate the locking hook from the locking hole, so that the first bracket 41 and the second bracket 42 can be disassembled.

[0098] It should be noted that the first locking structure 441 and the second locking structure 4211 are not limited to the structure of the lock hook and the lock hole described above. For example, they can also be set as two opposite lock hooks, etc. Such adjustments and changes to the specific structural forms of the first locking structure 441 and the second locking structure 4211 do not deviate from the principle and scope of the present utility model, and should be limited within the protection scope of the present utility model.

[0099] Preferably, if Figures 5 to 7 As shown, the second bracket 42 includes a first filter frame 421 and a second filter frame 422, the first end of the first filter frame 421 is pivotally connected to the first end of the second filter frame 422, the filter includes a first filter installed on the first filter frame 421 and a second filter installed on the second filter frame 422, the aperture of the filter hole of the first filter is larger than the aperture of the filter hole of the second filter, and the first filter is located upstream of the second filter.

[0100] Among them, the first filter frame 421 and the second filter frame 422 are arranged side by side along the flow direction of the airflow, the first filter frame 421 is located upstream of the second filter frame 422, and the first filter and the second filter are arranged in sequence along the flow direction of the airflow. The airflow first flows through the first filter for coarse filtration, and then flows through the second filter for fine filtration, so that the filtering effect is better. In addition, by pivotally connecting the first filter frame 421 and the second filter frame 422, it is convenient to clean the first filter and the second filter.

[0101] For example, Figure 6 and Figure 7 As shown, the second locking structure 4211 is arranged at the second end of the first filter frame 421, and the end face of the first bracket 41 close to the second bracket 42 has a socket (not shown in the figure), the second end of the first filter frame 421 passes through the socket and extends into the first bracket 41, and the second end of the second filter frame 422 does not pass through the socket, and the second end of the second filter frame 422 is located on the outside of the first bracket 41, that is, the length of the second filter frame 422 is less than the length of the first filter frame 421.

[0102] Preferably, if Figure 4 and Fig. 9 As shown, the heat pump module 3 of the present invention further includes a sensor 37 installed in the drying air duct, and the sensor 37 is located downstream of the filter device 4 .

[0103] The sensor 37 is used to detect humidity and / or temperature. That is, the sensor 37 may be a humidity sensor for detecting the humidity of the airflow in the drying duct, or the sensor 37 may be a temperature sensor for detecting the temperature of the airflow in the drying duct, or the sensor 37 may be a temperature and humidity sensor for detecting both the humidity and the temperature of the airflow in the drying duct.

[0104] By arranging the sensor 37 downstream of the filter device 4, the airflow flowing through the sensor 37 is filtered by the filter device 4, and the impurities such as lint carried by it are greatly reduced, which can effectively avoid the situation where the detection head of the sensor 37 is covered by impurities such as lint, thereby ensuring the accuracy of the detection data of the sensor 37 and providing accurate data support for the operation of the equipment.

[0105] Specifically, the sensor 37 is installed on the second drying air duct. More specifically, the sensor 37 is installed on the second air duct 312 and is located downstream of the second bracket 42 of the filter device 4 .

[0106] Preferably, if Figure 4 and Fig. 9 As shown, the sensor 37 is located upstream of the evaporator 34. That is, the sensor 37 is located between the filter device 4 and the evaporator 34.

[0107] Preferably, if Figure 4 and Fig. 9 As shown, the sensor 37 is arranged horizontally.

[0108] By arranging the sensor 37 horizontally, it is possible to better avoid the situation where the detection head of the sensor 37 is covered by impurities such as wire scraps.

[0109] Among them, those skilled in the art can set the detection head of the sensor downward, or can also set the detection head of the sensor upward. Of course, it is preferred to set the detection head of the sensor downward, which can better avoid the situation where the detection head of the sensor 37 is covered by impurities such as wire scraps.

[0110] Those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments may be used in any combination.

[0111] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A drying device, characterized in that: The drying equipment includes a heat pump module and a filtering device. The heat pump module includes a drying air duct and an evaporator, a condenser and a sensor installed in the drying air duct. The evaporator is located upstream of the condenser. The sensor is used to detect the humidity and / or temperature of the airflow in the drying air duct. The filtering device is installed in the drying air duct and is located upstream of the evaporator and the sensor.

2. The drying device according to claim 1, characterized in that: The sensor is arranged horizontally.

3. The drying device according to claim 2, characterized in that: The detection head of the sensor is arranged downward.

4. The drying device according to claim 1, characterized in that: The sensor is located upstream of the evaporator.

5. The drying device according to claim 1, characterized in that: The drying air duct includes a first drying air duct and a second drying air duct, the second drying air duct and the first drying air duct are respectively connected to the air inlet and the air outlet of the fan of the heat pump module, the evaporator and the sensor are arranged in the second drying air duct, and the condenser is arranged in the first drying air duct.

6. The drying device according to claim 5, characterized in that: The second drying air duct is provided with a first plug interface, and the housing of the drying equipment is provided with a second plug interface at a position corresponding to the first plug interface, the filtering device includes an outer shell and a filter component installed in the outer shell, the filter component can move relative to the outer shell along the length direction of the outer shell, the outer shell is fixedly installed between the housing and the second drying air duct, the two ends of the outer shell are respectively connected to the first plug interface and the second plug interface, the filter component includes a first bracket, a second bracket and a filter installed on the second bracket, the first bracket and the second bracket are distributed along the length direction of the outer shell and are detachably connected, the first bracket extends to the second plug interface, the second bracket and the filter screen pass through the second plug interface and the first plug interface in turn, extend into the second drying air duct and are located upstream of the evaporator.

7. The drying device according to claim 6, characterized in that: The filtering device also includes a locking pin, which is installed on the first bracket. The locking pin is provided with a first locking structure, and the second bracket is provided with a second locking structure. When the locking pin is in a locked position, the first locking structure cooperates with the second locking structure to lock the second bracket with the first bracket. When the locking pin is in an unlocked position, the first locking structure is separated from the second locking structure so as to separate the second bracket from the first bracket.

8. The drying device according to claim 5, characterized in that: The second drying air duct, the fan and the first drying air duct are all located above the drum module of the drying device.

9. The drying device according to claim 8, characterized in that: The first drying air duct comprises a first air guide portion, a first air duct and a first air guide pipe which are connected in sequence, the first air guide portion, the first air duct and the first air guide pipe are arranged on the upper left or upper right of the barrel module, the condenser is arranged in the first air duct, and the first air guide pipe is connected to the air outlet of the fan; and / or The second drying air duct includes a second air guide portion, a second air duct and a second air guide pipe which are connected in sequence, the second air guide portion, the second air duct and the second air guide pipe are arranged at the upper rear of the barrel module, the evaporator and the sensor are arranged in the second air duct, and the second air guide pipe is connected to the air inlet of the fan.

10. The drying device according to claim 9, characterized in that: The caliber of the first air guide tube gradually widens from the first end of the first air guide tube to the second end of the first air guide tube, the first end of the first air guide tube is an end connected to the air outlet of the fan, and the second end of the first air guide tube is an end connected to the first air duct; and / or The caliber of the second flow guide pipe gradually narrows from the first end of the second flow guide pipe to the second end of the second flow guide pipe, the first end of the second flow guide pipe is an end connected to the second air duct, and the second end of the second flow guide pipe is an end connected to the air inlet of the fan.

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